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US 6,655,304 B1Granted
Mass fuel combustion system
AssigneeBarlow Projects, Inc.
InventorJames L. Barlow
Life of this patent
Estimating the term…
Abstract
An improved mass fuel combustion system can be designed in a variety of embodiments and alternatives, including designs which include independent gas feeds, independent gas pulsing, independently controllable vibration systems and an overall control system which can coordinate a host of parameters for optimal combustion. One design includes overlapping grate elements (50) through which combustion gas is introduced and may include apertures to introduce a pulsed mix gas as well as a separate temperature control gas. Efficient poppet designs (44) can be used to provide an economical and efficient combustion system.
Claims164
A method of combusting a mass fuel comprising the steps of:
- a. providing a combustion chamber positioned to receive a mass fuel;
- b. providing an inclined grate system within said combustion chamber;
- c. feeding a mass fuel to said inclined grate system;
- d. substantially combusting said mass fuel;
- and
- e. vibrating at least a portion of said inclined grate system;
- f. forming a combusted mass fuel;
- and
- g. agitating said combusted mass fuel as a result of said step of vibrating said inclined grate system,
- wherein said step of forming combusted mass fuel comprises the step of forming an agglomerated combustion by-product.
7 more elements
A method of combusting a mass fuel as described in 1 wherein said step of agitating said combusted mass fuel comprises the step of agitating said agglomerated combustion by-product.
A method of combusting a mass fuel as described in 2 and further comprising the step of removing said agglomerated combustion by-product from said combustion chamber.
A method of combusting a mass fuel as described in 3 and further comprising the step of repeating said steps of vibrating, agitating and removing.
A method of combusting a mass fuel as described in 4 wherein said step of removing comprises the step of removing said agglomerated combustion by-product from said combustion chamber during said repeated steps of vibrating and agitating.
A method of combusting a mass fuel as described in 1 and further comprising the step of repeating said steps of feeding, substantially combusting and forming.
A method of combusting a mass fuel as described in 6 wherein said step of agitating said combusted mass fuel comprises the step of agitating said agglomerated combustion by-product.
A method of combusting a mass fuel as described in 7 and further comprising the step of removing said agglomerated combustion by-product from said combustion chamber.
A method of combusting a mass fuel as described in 8 and further comprising the step of repeating said steps of vibrating, agitating and removing.
A method of combusting a mass fuel as described in 9 and further comprising the step of removing said agglomerated combustion by-product from said combustion chamber during said repeated steps of vibrating and agitating.
A method of combusting a mass fuel as described in 7 and further comprising the step of providing a plurality of vibration elements and wherein said step of vibrating comprises the step of vibrating at least a portion of said inclined grate system with said plurality of vibration elements.
A method of combusting a mass fuel as described in 11 wherein said step of providing a inclined grate system comprises the step of providing a plurality of grate elements responsive to said plurality of vibration elements.
A method of combusting a mass fuel as described in 12 wherein said step of vibrating comprises the step of vibrating at least a portion of said plurality of grate elements with each of said vibration elements.
A method of combusting a mass fuel as described in 12 wherein said step of providing a inclined grate system comprises the step of providing a plurality of interconnect elements to which a plurality of said grate elements are responsive.
A method of combusting a mass fuel as described in 14 wherein said step of vibrating comprises the step of vibrating at least a portion of said plurality of interconnect elements with each of said vibration elements.
A method of combusting a mass fuel comprising the steps of:
- a. providing a combustion chamber positioned to receive a mass fuel;
- b. providing an inclined grate system within said combustion chamber;
- c. feeding a mass fuel to said inclined grate system;
- d. substantially combusting said mass fuel;
- e. vibrating at least a portion of said inclined grate system;
- f. forming a combusted mass fuel;
- and
- g. agitating said combusted mass fuel as a result of said step of vibrating said inclined grate system;
- wherein said inclined grate system has a length between said input end and said output end and wherein said step of agitating comprises agitatingly transporting said combusted mass fuel along said length of said grate system;
- wherein said step of agitating further comprises the step of agitatingly removing combusted mass fuel from said combustion chamber;
- and
- wherein said step of forming combusted mass fuel comprises the step of forming agglomerated combustion by-product.
9 more elements
A method of combusting a mass fuel comprising the steps of:
- a. providing a combustion chamber positioned to receive a mass fuel;
- b. establishing a grate system within a combustion chamber;
- c. feeding a mass fuel onto said grate system within said combustion chamber;
- d. transporting said mass fuel across said grate system;
- e. introducing a combustion gas into said combustion chamber;
- f. combusting at least a portion of said mass fuel to produce a combustion product;
- g. introducing a temperature control gas within said combustion chamber independent of said step of introducing a combustion gas into said combustion chamber;
- h. controlling a temperature within said combustion chamber through said temperature control gas;
- i. discharging said combustion product;
- wherein said step of introducing a temperature control gas into said combustion chamber comprises the step of introducing a cooling gas into said combustion chamber;
- wherein said step of introducing a cooling gas into said combustion chamber comprises the step of introducing recycled combusted gas into said combustion chamber.
8 more elements
A method of combusting a mass fuel comprising the steps of:
- a. providing a combustion chamber positioned to receive a mass fuel;
- b. establishing a grate system within a combustion chamber;
- c. feeding a mass fuel onto said grate system within said combustion chamber;
- d. transporting said mass fuel across said grate system;
- e. introducing a combustion gas into said combustion chamber;
- f. combusting at least a portion of said mass fuel to produce a combustion product;
- g. introducing a temperature control gas within said combustion chamber independent of said step of introducing a combustion gas into said combustion chamber;
- h. controlling a temperature within said combustion chamber through said temperature control gas;
- and
- i. discharging said combustion product;
- wherein said step of introducing a temperature control gas into said combustion chamber comprises the step of introducing said temperature control gas at a location at which said combustion product exists;
- wherein said step of introducing said temperature control gas at a location at which said combustion product exists comprises the steps of:
- i. introducing said temperature control gas above said grate system;
- and
- ii. introducing said temperature control gas below said grate system.
12 more elements
A method of combusting a mass fuel comprising the steps of:
- a. providing a combustion chamber positioned to receive a mass fuel;
- b. establishing a grate system within a combustion chamber;
- c. feeding a mass fuel onto said grate system within said combustion chamber;
- d. transporting said mass fuel across said grate system;
- e. introducing a combustion gas into said combustion chamber;
- f. combusting at least a portion of said mass fuel to produce a combustion product;
- g. introducing a temperature control gas within said combustion chamber independent of said step of introducing a combustion gas into said combustion chamber;
- h. controlling a temperature within said combustion chamber through said temperature control gas;
- and
- i. discharging said combustion product;
- wherein said step of feeding a mass fuel into said combustion chamber comprises the step of limiting the amount of air introduced into said combustion chamber with said mass fuel.
8 more elements
A method of combusting a mass fuel comprising the steps of:
- a. providing a combustion chamber positioned to receive a mass fuel;
- b. establishing a grate system within a combustion chamber;
- c. feeding a mass fuel onto said grate system within said combustion chamber;
- d. transporting said mass fuel across said grate system;
- e. introducing a combustion gas into said combustion chamber;
- f. combusting at least a portion of said mass fuel to produce a combustion product;
- g. introducing a temperature control recycled gas within said combustion chamber;
- h. controlling a temperature within said combustion chamber through said temperature control recycled gas;
- and
- i. discharging said combustion product,
- wherein said step of introducing a temperature control recycled gas into said combustion chamber comprises the step of introducing a substantially uncombustible recycled gas into said combustion chamber.
8 more elements
A method of combusting a mass fuel comprising the steps of:
- a. providing a combustion chamber positioned to receive a mass fuel;
- b. establishing a grate system within a combustion chamber;
- c. feeding a mass fuel onto said grate system within said combustion chamber;
- d. transporting said mass fuel across said grate system;
- e. introducing a combustion gas into said combustion chamber;
- f. combusting at least a portion of said mass fuel to produce a combustion product;
- g. introducing a temperature control gas within said combustion chamber independent of said step of introducing a combustion gas into said combustion chamber;
- h. controlling a temperature within said combustion chamber through said temperature control gas;
- i. discharging said combustion product;
- wherein said step of introducing a temperature control gas into said combustion chamber comprises the step of introducing a substantially uncombustible gas into said combustion chamber;
- and
- wherein said step of introducing a substantially uncombustible gas into said combustion chamber comprises the step of introducing recycled combusted gas within said combustion chamber.
9 more elements
A method of combusting a mass fuel comprising the steps of:
- a. providing a combustion chamber positioned to receive a mass fuel;
- b. providing an inclined grate system within said combustion chamber;
- c. feeding a mass fuel to said inclined grate system;
- d. substantially combusting said mass fuel;
- e. vibrating at least a portion of said inclined grate system with a plurality of vibration elements;
- f. independently controlling each of said plurality of vibration elements;
- g. forming a combusted mass fuel;
- h. agitating said combusted mass fuel as a result of said step of vibrating said inclined grate system;
- and
- i. forming uncombusted material when accomplishing said step of forming a combusted mass fuel.
7 more elements
A method of combusting a mass fuel as described in 35 and further comprising the step of agitating said uncombusted material as a result of said step of vibrating said inclined grate system.
A method of combusting a mass fuel comprising the steps of:
- a. providing a combustion chamber positioned to receive a mass fuel;
- b. establishing a grate system within a combustion chamber;
- c. feeding a mass fuel onto said grate system within said combustion chamber;
- d. transporting said mass fuel across said grate system;
- e. introducing a combustion gas into said combustion chamber;
- f. combusting at least a portion of said mass fuel to produce a combustion product;
- g. introducing a temperature control gas within said combustion chamber independent of said step of introducing a combustion gas into said combustion chamber;
- h. controlling a temperature within said combustion chamber through said temperature control gas;
- i. discharging said combustion product;
- and
- j. introducing a mix gas into said combustion chamber and wherein said step of introducing a mix gas into said combustion chamber is independent of both said steps of introducing a combustion gas into said combustion chamber and introducing a temperature control gas into said combustion chamber.
8 more elements
A method of combusting a mass fuel comprising the steps of:
- a. providing a combustion chamber positioned to receive a mass fuel;
- b. establishing a grate system within a combustion chamber;
- c. feeding a mass fuel onto said grate system within said combustion chamber;
- d. transporting said mass fuel across said grate system;
- e. introducing a combustion gas into said combustion chamber;
- f. combusting at least a portion of said mass fuel to produce a combustion product;
- g. introducing a temperature control gas within said combustion chamber independent of said step of introducing a combustion gas into said combustion chamber;
- h. controlling a temperature within said combustion chamber through said temperature control gas;
- i. discharging said combustion product;
- and
- j. reducing agglomerated combustion by-product within said combustion chamber and on said grate system as a result of said step of combusting at least a portion of said mass fuel to produce a combustion product.
8 more elements
A method of combusting a mass fuel comprising the steps of:
- a. providing a combustion chamber positioned to receive a mass fuel;
- b. establishing a grate system within a combustion chamber;
- c. feeding a mass fuel onto said grate system within said combustion chamber;
- d. transporting said mass fuel across said grate system;
- e. introducing a mix gas into said combustion chamber;
- f. introducing a combustion gas into said combustion chamber;
- g. independently pulsing said mix gas independent of said combustion gas;
- h. mixing said mass fuel through action of said mix gas;
- i. combusting at least a portion of said mass fuel to produce a combustion product;
- and
- j. discharging said combustion product.
8 more elements
A method of combusting a mass fuel comprising the steps of:
- a. providing a combustion chamber positioned to receive a mass fuel;
- b. establishing a grate system within a combustion chamber;
- c. feeding a mass fuel onto said grate system within said combustion chamber;
- d. transporting said mass fuel across said grate system;
- e. introducing a combustion gas into said combustion chamber;
- f. combusting at least a portion of said mass fuel to produce a combustion product;
- g. introducing a temperature control gas within said combustion chamber independent of said step of introducing a combustion gas into said combustion chamber;
- h. controlling a temperature within said combustion chamber through said temperature control gas;
- i. discharging said combustion product;
- and
- j. pulsing at least one of said gases introduced within said chamber.
8 more elements
A method of combusting a mass fuel comprising the steps of:
- a. providing a combustion chamber positioned to receive a mass fuel;
- b. establishing a grate system within a combustion chamber;
- c. feeding a mass fuel onto said grate system within said combustion chamber;
- d. transporting said mass fuel across said grate system;
- e. introducing a combustion gas into said combustion chamber;
- f. combusting at least a portion of said mass fuel to produce a combustion product;
- g. introducing a temperature control gas within said combustion chamber independent of said step of introducing a combustion gas into said combustion chamber;
- h. controlling a temperature within said combustion chamber through said temperature control gas;
- i. discharging said combustion product;
- and
- j. pulsing said temperature control gas.
8 more elements
A method of combusting a mass fuel comprising the steps of:
- a. providing a combustion chamber positioned to receive a mass fuel;
- b. establishing a grate system within a combustion chamber;
- c. feeding a mass fuel onto said grate system within said combustion chamber;
- d. transporting said mass fuel across said grate system;
- e. introducing a first gas within said combustion chamber;
- f. introducing a second gas within said combustion chamber;
- g. independently pulsing said first gas independent of said second gas;
- h. independently pulsing said second gas independent of said first gas;
- i. combusting at least a portion of said mass fuel to produce a combustion product;
- and
- j. discharging said combustion product.
8 more elements
A method of combusting a mass fuel comprising the steps of:
- a. providing a combustion chamber positioned to receive a mass fuel;
- b. overlapping a plurality of grate elements to establish a grate system within a combustion chamber comprising the steps of;
- i. the step of establishing a substantially planar grate system within said combustion chamber;
- and
- ii. the step of overlapping a plurality of substantially planar grate elements to establish said substantially planar grate system within a combustion chamber;
- c. establishing a plurality of spaces on said grate system as a result of said step of overlapping said plurality of overlapping grate elements;
- d. providing a plurality of apertures on said plurality of overlapping grate elements;
- e. feeding a mass fuel into said combustion chamber;
- f. introducing a combustion gas through said plurality of spaces on said grate system;
- g. introducing a secondary gas through said plurality of apertures on said plurality of overlapping grate elements within said combustion chamber;
- h. transporting said mass fuel across said grate system;
- i. combusting at least a portion of said mass fuel to produce a combustion product;
- j. discharging said combustion product;
- and
- k. interlocking said plurality of grate elements within a combustion chamber.
12 more elements
A method of combusting a mass fuel comprising the steps of:
- a. providing a combustion chamber positioned to receive a mass fuel;
- b. overlapping a plurality of grate elements to establish a grate system within a combustion chamber;
- c. establishing a plurality of spaces on said grate system as a result of said step of overlapping said plurality of overlapping grate elements;
- d. providing a plurality of apertures on said plurality of overlapping grate elements;
- e. feeding a mass fuel into said combustion chamber;
- f. introducing a combustion gas through said plurality of spaces on said grate system;
- g. introducing a secondary gas through said plurality of apertures on said plurality of overlapping grate elements within said combustion chamber;
- h. transporting said mass fuel across said grate system;
- i. combusting at least a portion of said mass fuel to produce a combustion product;
- j. discharging said combustion product;
- and
- k. pulsing said combustion gas.
9 more elements
A method of combusting a mass fuel comprising the steps of:
- a. providing a combustion chamber positioned to receive a mass fuel;
- b. overlapping a plurality of grate elements to establish a grate system within a combustion chamber;
- c. establishing a plurality of spaces on said grate system as a result of said step of overlapping said plurality of overlapping grate elements;
- d. providing a plurality of apertures on said plurality of overlapping grate elements;
- e. feeding a mass fuel into said combustion chamber;
- f. introducing a combustion gas through said plurality of spaces on said grate system;
- g. introducing a secondary gas through said plurality of apertures on said plurality of overlapping grate elements within said combustion chamber;
- h. transporting said mass fuel across said grate system;
- i. combusting at least a portion of said mass fuel to produce a combustion product;
- j. discharging said combustion product;
- and
- k. pulsing said secondary gas;
- wherein said step of introducing a secondary gas through said plurality of apertures on said plurality of overlapping grate elements within said combustion chamber comprises the step of distributing said secondary air through a plenum below each of said overlapping grate elements.
10 more elements
A method of combusting a mass fuel comprising the steps of:
- a. providing a combustion chamber positioned to receive a mass fuel;
- b. overlapping a plurality of grate elements to establish a grate system within a combustion chamber;
- c. establishing a plurality of spaces on said grate system as a result of said step of overlapping said plurality of overlapping grate elements;
- d. providing a plurality of apertures on said plurality of overlapping grate elements;
- e. feeding a mass fuel into said combustion chamber;
- f. introducing a combustion gas through said plurality of spaces on said grate system;
- g. introducing a secondary gas through said plurality of apertures on said plurality of overlapping grate elements within said combustion chamber;
- h. transporting said mass fuel across said grate system;
- i. combusting at least a portion of said mass fuel to produce a combustion product;
- j. discharging said combustion product;
- and
- k. actively controlling a level at which said step of combusting at least a portion of said mass fuel to produce a combustion product is accomplished while said step of combusting at least a portion of said mass fuel to produce a combustion product is accomplished;
- wherein said step of actively controlling a level at which said step of combusting at least a portion of said mass fuel to produce a combustion product is accomplished while said step of combusting at least a portion of said mass fuel to produce a combustion product is accomplished comprises the step of sensing a temperature in said combustion chamber;
- wherein said step of sensing a temperature in said combustion chamber comprises the step of:
- a. sensing a first temperature in said combustion chamber;
- and
- b. sensing a second temperature in said combustion chamber;
- and
- wherein said step of sensing a first temperature in said combustion chamber comprises the step of sensing a combustion temperature in said combustion chamber, and wherein said step of sensing a second temperature in said combustion chamber comprises the step of sensing a post-combustion temperature in said combustion chamber.
16 more elements
A method of combusting a mass fuel comprising the steps of:
- a. providing a combustion chamber positioned to receive a mass fuel;
- b. overlapping a plurality of grate elements to establish a grate system within a combustion chamber;
- c. establishing a plurality of spaces on said grate system as a result of said step of overlapping said plurality of overlapping grate elements;
- d. providing a plurality of apertures on said plurality of overlapping grate elements;
- e. feeding a mass fuel into said combustion chamber;
- f. introducing a combustion gas through said plurality of spaces on said grate system;
- g. introducing a secondary gas through said plurality of apertures on said plurality of overlapping grate elements within said combustion chamber;
- h. transporting said mass fuel across said grate system;
- i. combusting at least a portion of said mass fuel to produce a combustion product;
- j. discharging said combustion product;
- k. controlling a depth of said mass fuel on said grate system by operation of a roller at an output end of said grate system;
- wherein said step of controlling a depth of said mass fuel on said grate system by operation of a roller at an output end of said grate system comprises the step of adjusting said roller.
9 more elements
A method of combusting a mass fuel comprising the steps of:
- a. providing a combustion chamber positioned to receive a mass fuel;
- b. overlapping a plurality of grate elements to establish a grate system within a combustion chamber;
- c. establishing a plurality of spaces on said grate system as a result of said step of overlapping said plurality of overlapping grate elements;
- d. providing a plurality of secondary gas apertures on said plurality of overlapping grate elements;
- e. feeding a mass fuel into said combustion chamber;
- f. introducing a combustion gas through said plurality of spaces on said grate system;
- g. introducing a secondary gas through said plurality of secondary gas apertures on said plurality of overlapping grate elements within said combustion chamber;
- h. transporting said mass fuel across said grate system;
- i. combusting at least a portion of said mass fuel to produce a combustion product;
- j. discharging said combustion product;
- k. establishing a secondary gas pulse system to which said secondary gas is responsive;
- and
- l. vibrating at least a portion of said grate system.
10 more elements
A method of combusting a mass fuel comprising the steps of:
- a. providing a combustion chamber positioned to receive a mass fuel;
- b. overlapping a plurality of grate elements to establish a grate system within a combustion chamber;
- c. establishing a plurality of spaces on said grate system as a result of said step of overlapping said plurality of overlapping grate elements;
- d. providing a plurality of apertures on said plurality of overlapping grate elements;
- e. feeding a mass fuel into said combustion chamber;
- f. introducing a combustion gas through said plurality of spaces on said grate system;
- g. introducing a secondary gas through said plurality of apertures on said plurality of overlapping grate elements within said combustion chamber;
- h. transporting said mass fuel across said grate system;
- i. combusting at least a portion of said mass fuel to produce a combustion product;
- j. discharging said combustion product;
- k. introducing a third gas at a location at which said combustion product exists;
- l. actively controlling a level at which said step of combusting at least a portion of said mass fuel to produce a combustion product is accomplished while said step of combusting at least a portion of said mass fuel to produce a combustion product is accomplished;
- wherein said step of actively controlling a level at which said step of combusting at least a portion of said mass fuel to produce a combustion product is accomplished while said step of combusting at least a portion of said mass fuel to produce a combustion product is accomplished comprises the step of sensing a temperature in said combustion chamber;
- wherein said step of sensing a temperature in said combustion chamber comprises the step of:
- a. sensing a first temperature in said combustion chamber;
- and
- b. sensing a second temperature in said combustion chamber;
- wherein said step of sensing a first temperature in said combustion chamber comprises the step of sensing a combustion temperature in said combustion chamber, and
- wherein said step of sensing a second temperature in said combustion chamber comprises the step of sensing a post-combustion temperature in said combustion chamber.
16 more elements
A mass fuel combustion furnace comprising:
- a. a mass fuel feed element;
- b. a combustion chamber positioned to receive mass fuel from said mass fuel feed element;
- c. a plurality of overlapping grate elements within said combustion chamber and establishing an input end, an output end and a length between said input end and said output end across which mass fuel is transported, wherein:
- i. said plurality of overlapping grate elements further comprises an interlock system between at least two of said plurality of overlapping grate elements;
- ii. said plurality of overlapping grate elements forms a substantially unobstructed planar surface;
- and
- iii. each of said plurality of overlapping grate elements comprises a substantially planar overlapping grate element;
- and
- d. a combustion gas feed within said combustion chamber;
- e. a plurality of overlapping segments of said plurality of overlapping grate elements forming a space between each pair of overlapping segments, wherein said combustion gas feed is positioned for introducing combustion gas through said plurality of spaces;
- f. a secondary gas feed within said combustion chamber;
- g. a plurality of apertures within said plurality of overlapping grate elements for introducing a secondary gas from said secondary gas feed to said mass fuel transported across said length of overlapping grate elements;
- and
- h. an ash discharge system situated in the vicinity of said output end of said plurality of overlapping fixed grate elements.
11 more elements
A mass fuel combustion furnace comprising:
- a. a mass fuel feed element;
- b. a combustion chamber positioned to receive mass fuel from said mass fuel feed element;
- c. a plurality of overlapping grate elements within said combustion chamber and establishing an input end, an output end and a length between said input end and said output end across which mass fuel is transported;
- d. a combustion gas feed within said combustion chamber;
- e. a plurality of overlapping segments of said plurality of overlapping grate elements forming a space between each pair of overlapping segments, wherein said combustion gas feed is positioned for introducing combustion gas through said plurality of spaces;
- f. a secondary gas feed within said combustion chamber;
- g. a plurality of apertures within said plurality of overlapping grate elements for introducing a secondary gas from said secondary gas feed to said mass fuel transported across said length of overlapping grate elements;
- h. an ash discharge system situated in the vicinity of said output end of said plurality of overlapping fixed grate elements;
- and
- i. a gas pulse system to which said combustion air is responsive;
- wherein said combustion gas comprises combustion air.
8 more elements
A mass fuel combustion furnace comprising:
- a. a mass fuel feed element;
- b. a combustion chamber positioned to receive mass fuel from said mass fuel feed element;
- c. a plurality of overlapping grate elements within said combustion chamber and establishing an input end, an output end and a length between said input end and said output end across which mass fuel is transported;
- d. a combustion gas feed within said combustion chamber;
- e. a plurality of overlapping segments of said plurality of overlapping grate elements forming a space between each pair of overlapping segments, wherein said combustion gas feed is positioned for introducing combustion gas through said plurality of spaces;
- f. a secondary gas feed within said combustion chamber;
- g. a plurality of apertures within said plurality of overlapping grate elements for introducing a secondary gas from said secondary gas feed to said mass fuel transported across said length of overlapping grate elements;
- h. an ash discharge system situated in the vicinity of said output end of said plurality of overlapping fixed grate elements;
- i. a secondary gas plenum adjacent at least one of said overlapping grate elements and which is responsive to said secondary gas feed;
- and
- j. a secondary gas pulse system to which said secondary gas is responsive.
8 more elements
A mass fuel combustion furnace comprising:
- a. a mass fuel feed element;
- b. a combustion chamber positioned to receive mass fuel from said mass fuel feed element;
- c. a plurality of overlapping grate elements within said combustion chamber and establishing an input end, an output end and a length between said input end and said output end across which mass fuel is transported;
- d. a combustion gas feed within said combustion chamber;
- e. a plurality of overlapping segments of said plurality of overlapping grate elements forming a space between each pair of overlapping segments, wherein said combustion gas feed is positioned for introducing combustion gas through said plurality of spaces;
- f. a secondary gas feed within said combustion chamber;
- g. a plurality of secondary gas apertures within said plurality of overlapping grate elements for introducing a secondary gas from said secondary gas feed through said mass fuel transported across said length of overlapping grate elements;
- h. an ash discharge system situated in the vicinity of said output end of said plurality of overlapping fixed grate elements;
- i. a combustion control system;
- j. at least one temperature sensor responsive to conditions within said combustion chamber and to which said combustion control system is responsive;
- and
- k. a secondary gas pulse system to which said secondary gas is responsive.
9 more elements
A mass fuel combustion furnace comprising:
- a. a mass fuel feed element;
- b. a combustion chamber positioned to receive mass fuel from said mass fuel feed element;
- c. a plurality of overlapping grate elements within said combustion chamber and establishing an input end, an output end, a length between said input end and said output end across which mass fuel is transported
- d. a combustion gas feed within said combustion chamber;
- e. a plurality of overlapping segments of said plurality of overlapping grate elements forming a space between each pair of overlapping segments, wherein said combustion gas feed is positioned for introducing combustion gas through said plurality of spaces;
- f. a secondary gas feed within said combustion chamber;
- g. a plurality of secondary gas apertures within said plurality of overlapping grate elements for introducing a secondary gas from said secondary gas feed through said mass fuel transported across said length of overlapping grate elements;
- h. an ash discharge system situated in the vicinity of said output end of said plurality of overlapping fixed grate elements;
- i. a combustion control system;
- and
- k. a secondary gas pulse system to which said secondary gas is responsive,
- wherein said combustion control system comprises a combustion parameter coordination system.
9 more elements
A mass fuel combustion furnace comprising:
- a. a mass fuel feed element;
- b. a combustion chamber positioned to receive mass fuel from said mass fuel feed element;
- c. a plurality of overlapping grate elements within said combustion chamber and establishing an input end, an output end and a length between said input end and said output end across which mass fuel is transported;
- d. a combustion gas feed within said combustion chamber;
- e. a plurality of overlapping segments of said plurality of overlapping grate elements forming a space between each pair of overlapping segments, wherein said combustion gas feed is positioned for introducing combustion gas through said plurality of spaces;
- f. a secondary gas feed within said combustion chamber;
- g. a plurality of secondary gas apertures within said plurality of overlapping grate elements for introducing a secondary gas from said secondary gas feed through said mass fuel transported across said length of overlapping grate elements;
- h. an ash discharge system situated in the vicinity of said output end of said plurality of overlapping fixed grate elements;
- i. a secondary gas pulse system to which said secondary gas is responsive;
- and
- k. a combustion control system wherein said combustion control system;
- i. has responsive to it a system selected from the group consisting of:
- said mass fuel feed element, said combustion gas feed, said secondary gas feed, said post-combustion gas feed, said ash discharge system, a chamber cooling system, a chamber cooling gas feed, said ash discharge system, a rate of transport system, a vibration system, a grate vibration system, a roller element, and any combinations or permutations of such systems;
- and
- ii. comprises a control system responsive to a combustion parameter selected from the group consisting of:
- oxygen content, carbon monoxide content, furnace pressure, temperature, combustion temperature, post-combustion temperature, the relation between a fuel feed rate and a combustion gas feed rate, and any combinations or permutations of such parameters.
13 more elements
A mass fuel combustion furnace comprising:
- a. a mass fuel feed element;
- b. a combustion chamber positioned to receive mass fuel from said mass fuel feed element;
- c. a plurality of overlapping grate elements within said combustion chamber and establishing an input end, an output end and a length between said input end and said output end across which mass fuel is transported;
- d. a combustion gas feed within said combustion chamber;
- e. a plurality of overlapping segments of said plurality of overlapping grate elements forming a space between each pair of overlapping segments, wherein said combustion gas feed is positioned for introducing combustion gas through said plurality of spaces;
- f. a secondary gas feed within said combustion chamber;
- g. a plurality of secondary gas apertures within said plurality of overlapping grate elements for introducing a secondary gas from said secondary gas feed through said mass fuel transported across said length of overlapping grate elements;
- h. an ash discharge system situated in the vicinity of said output end of said plurality of overlapping fixed grate elements;
- and
- i. a secondary gas pulse system to which said secondary gas is responsive,
- wherein said ash discharge system comprises a roller;
- and
- wherein said roller comprises an adjustable roller to which an amount of fuel on said grate system is responsive.
10 more elements
A mass fuel combustion furnace comprising:
- a. a mass fuel feed element;
- b. a combustion chamber positioned to receive mass fuel from said mass fuel feed element;
- c. a plurality of overlapping grate elements within said combustion chamber and establishing an input end, an output end and a length between said input end and said output end across which mass fuel is transported;
- d. a combustion gas feed within said combustion chamber;
- e. a plurality of overlapping segments of said plurality of overlapping grate elements forming a space between each pair of overlapping segments, wherein said combustion gas feed is positioned for introducing combustion gas through said plurality of spaces;
- f. a secondary gas feed within said combustion chamber;
- g. a plurality of apertures within said plurality of overlapping grate elements for introducing a secondary gas from said secondary gas feed to said mass fuel transported across said length of overlapping grate elements;
- h. an ash discharge system situated in the vicinity of said output end of said plurality of overlapping fixed grate elements;
- wherein said ash discharge system comprises:
- i. a roller;
- and
- ii. a pivotable plate positioned adjacent said roller.
9 more elements
A mass fuel combustion furnace comprising:
- a. a mass fuel feed element;
- b. a combustion chamber positioned to receive mass fuel from said mass fuel feed element;
- c. a grate system within said combustion chamber and having an input end and an output end across which said mass fuel is transported;
- d. a combustion gas feed within said combustion chamber;
- e. a temperature control gas feed within said combustion chamber independent of said combustion gas feed;
- f. an ash discharge system situated in the vicinity of said output end of said grate system;
- and
- g. a fuel mix gas feed within said combustion chamber and wherein said temperature control gas feed within said combustion chamber comprises a temperature control gas feed which is independent of both said combustion gas feed and said fuel mix gas feed.
5 more elements
A mass fuel combustion furnace comprising:
- a. a mass fuel feed element;
- b. a combustion chamber positioned to receive mass fuel from said mass fuel feed element;
- c. a grate system within said combustion chamber and having an input end and an output end across which said mass fuel is transported;
- d. a combustion gas feed within said combustion chamber;
- e. a temperature control gas feed within said combustion chamber independent of said combustion gas feed;
- and
- f. an ash discharge system situated in the vicinity of said output end of said grate system;
- wherein said temperature control gas feed within said combustion chamber comprises a cooling gas feed;
- and
- wherein said cooling gas feed comprises a recycled gas feed.
7 more elements
A mass fuel combustion furnace comprising:
- a. a mass fuel feed element;
- b. a combustion chamber positioned to receive mass fuel from said mass fuel feed element;
- c. a grate system within said combustion chamber and having an input end and an output end across which said mass fuel is transported;
- d. a combustion gas feed within said combustion chamber;
- e. a temperature control gas feed within said combustion chamber independent of said combustion gas feed;
- and
- f. an ash discharge system situated in the vicinity of said output end of said grate system;
- wherein said temperature control gas feed within said combustion chamber comprises a gas feed positioned below said grate system.
5 more elements
A mass fuel combustion furnace comprising:
- a. a mass fuel feed element;
- b. a combustion chamber positioned to receive mass fuel from said mass fuel feed element;
- c. a grate system within said combustion chamber and having an input end and an output end across which mass fuel is transported;
- d. a combustion gas feed within said combustion chamber;
- e. a mix gas feed within said combustion chamber;
- f. an independent mix gas pulse system which is independent of said combustion gas feed and to which said mix gas feed is responsive;
- and
- g. an ash discharge system situated in the vicinity of said output end of said grate system.
5 more elements
A mass fuel combustion furnace comprising:
- a. a mass fuel feed element;
- b. a combustion chamber positioned to receive mass fuel from said mass fuel feed element;
- c. a grate system within said combustion chamber and having an input end and an output end across which said mass fuel is transported;
- d. a combustion gas feed within said combustion chamber;
- e. a temperature control gas feed within said combustion chamber independent of said combustion gas feed;
- f. an ash discharge system situated in the vicinity of said output end of said grate system;
- g. a mix gas feed within said combustion chamber;
- and
- h. an independent combustion gas pulse system which is independent of said mix gas feed and to which said combustion gas feed is responsive.
6 more elements
A mass fuel combustion furnace comprising:
- a. a mass fuel feed element;
- b. a combustion chamber positioned to receive mass fuel from said mass fuel feed element;
- c. a grate system within said combustion chamber and having an input end and an output end across which said mass fuel is transported;
- d. a combustion gas feed within said combustion chamber;
- e. a temperature control gas feed within said combustion chamber independent of said combustion gas feed;
- f. an ash discharge system situated in the vicinity of said output end of said grate system;
- and
- g. a gas pulse system to which at least one of said gas feeds is responsive.
5 more elements
A mass fuel combustion furnace comprising:
- a. mass fuel feed element;
- b. a combustion chamber positioned to receive mass fuel from said mass fuel feed element;
- c. a grate system within said combustion chamber and having an input end and an output end across which mass fuel is transported;
- d. a first gas feed within said combustion chamber;
- e. a second gas feed within said combustion chamber;
- f. a first gas pulse system to which only said first gas feed is responsive;
- g. a second gas pulse system to which only said second gas feed is responsive;
- and
- h. an ash discharge system situated in the vicinity of said output end of said grate system.
6 more elements
A mass fuel combustion furnace comprising:
- a. a mass fuel feed element;
- b. a combustion chamber positioned to receive mass fuel from said mass fuel feed element;
- c. an inclined grate system within said combustion chamber;
- d. a vibration element to which said inclined grate system is responsive;
- e. a combustion gas feed within said combustion chamber;
- f. an ash discharge system situated in the vicinity of said output end of said inclined grate system;
- wherein said inclined grate system comprises a plurality of overlapping grate elements, and
- wherein said plurality of overlapping grate elements comprises a plurality of grate zones which are each individually responsive to said vibration element.
5 more elements
A mass fuel combustion furnace comprising:
- a. a mass fuel feed element;
- b. a combustion chamber positioned to receive mass fuel from said mass fuel feed element;
- c. an inclined grate system within said combustion chamber;
- d. a vibration element to which said inclined grate system is responsive;
- e. a combustion gas feed within said combustion chamber,
- f. an ash discharge system situated in the vicinity of said output end of said inclined grate system;
- wherein said inclined grate system comprises a plurality of vibrational grate zones which are each individually responsive to said vibration element.
4 more elements
A mass fuel combustion furnace comprising:
- a. a mass fuel feed element;
- b. a combustion chamber positioned to receive mass fuel from said mass fuel feed element;
- c. a grate system within said combustion chamber and having an input end and an output end across which said mass fuel is transported;
- d. a combustion gas feed within said combustion chamber;
- e. a temperature control recycled gas feed within said combustion chamber;
- f. an ash discharge system situated in the vicinity of said output end of said grate system,
- wherein said temperature control recycled gas feed within said combustion chamber comprises a cooling gas feed.
4 more elements
Dependencies are inferred from the claim text.