# US 6,170,411 B2 · Waste tire incinerating and post-treating system

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- Number: US 6,170,411 B2
- Document ID: US6170411B2
- Status: Granted
- Kind: B2
- Application number: 09/431,690
- Filed: 1999-11-01
- Granted: 2001-01-09
- Earliest claimed: 1999-11-01
- Assignees: Byung Kyu An
- Inventors: Byung Kyu An
- Web page: https://patentgrep.com/patent/US6170411B2

## CPC

- F23G 7/05: of waste oils
- F23G 7/065: {using gaseous or liquid fuel}
- F23H 1/02: having provision for air supply or air preheating, e.g. air-supply or blast fittings which form a part of the grate structure or serve as supports
- F23J 1/06: Mechanically-operated devices, e.g. clinker pushers (forming part of the grate F23H)
- F23K 5/12: Preparing emulsions (burners spraying an emulsion of water and fuel into the combustion space F23D11/16)
- F23G 2205/124: Chain conveyor
- F23G 2205/18: using airlock systems
- F23G 2206/10: reintroducing the heat in the same process, e.g. for predrying
- F23G 2207/30: Oxidant supply
- F23G 2209/281: Tyres
- F23J 2700/001: Ash removal, handling and treatment means
- F23J 2900/01003: Ash crushing means associated with ash removal means
- F23G: CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23H: GRATES (inlets for fluidisation air for fluidised bed combustion apparatus F23C10/20); CLEANING OR RAKING GRATES
- F23J: REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES (combustion apparatus for consuming smoke or fumes, e.g. exhaust gases, F23G7/06)
- F23K: FEEDING FUEL TO COMBUSTION APPARATUS (fuel feeders specially adapted for fluidised bed combustion apparatus F23C10/22)

## Abstract

A waste tire incinerating and post-treatment system in which waste tires are continuously and efficiently burned. The system includes a waste tire reservoir tank, a hoist, a conveyor system, a tire-size sensing system, an incinerating part, a waste oil purifying part, a waste gas purifying part, and an incineration residual material treating part. Waste tires are accumulated in a waste tire reservoir tank before their incineration. A hoist transfers the waste tires from the waste tank reservoir to a conveyor system. The conveyor system conveys waste tires to an incinerating part. A sensing system senses the size of individual tires on the conveyor system to create tire size data. This size data is used to control and optimize the rate of feeding the waste tires into the incinerating furnace. The incinerating part further includes a material removal mechanism for removing incineration residual materials. The removed incineration residual materials are further treated in an incineration residual material treating part wherein the materials are compressed to squeeze the waste oil therefrom and to obtain compressed incineration residual material blocks, which may be transferred for further processing by the hoist. A waste oil purifying part purifies the waste oil after incineration of the waste tires. A waste gas purifying part purifies the waste gas generated during the incineration of tires. The waste gas purifying part condenses the waste gas into a waste oil. This waste oil captures contaminants contained in the waste gas by spraying this oil through a body of waste gas.

## Claims

### Claim 1

A waste tire incinerating and post-treating system comprising:
an incinerating part comprising: a main air supplying pipe and a plurality of air supplying tubes; a plurality of air discharge tubes, each having a cover; and a thermally decomposing furnace for incinerating waste tires after receiving the waste tires through a feeding pipe;
a waste oil purifying part for purifying a waste oil after an incineration of the waste tires;
a waste gas purifying part comprising: first and second oil filters, an oil cooler and an oil cyclone, for purifying a waste gas generated during the incineration of the waste tires;
a waste tire reservoir tank for accommodating the waste tires before incineration of the waste tires;
a hoist device having a tongs for picking up the waste tires from the waste tire reservoir tank, and for handling compressed incineration residual material blocks;
a waste tire supplying and sensing device comprising: a chain conveyor with tire guide members installed thereon for conveying the waste tires one by one from the waste tire reservoir tank to said thermally decomposing furnace, the waste tires being transferred from said reservoir tank to said chain conveyor with said hoist; and large, medium and small tire sensors for sensing sizes of the waste tires so as to feed proper amounts of the waste tires into said thermally decomposing furnace;
said incinerating part further comprising: first and second blocking gates installed on said feeding pipe of said thermally decomposing furnace, to form a waste tire waiting space between said two gates; the waste gas leaked into said waiting space being fed back into said thermally decomposing furnace; a plurality of recycling chains running between the plurality of said air supplying tubes, for removing incineration residual materials; and a plurality of angled recycling members upstanding on each of said chains, for pushing the incineration residual materials;
an incineration residual material treating part for compressing the incineration residual materials from the incinerating part into a block to squeeze from the incineration residual materials any waste oil contained in the residual materials and to obtain compressed incineration residual material blocks; and
said waste gas purifying part feeding a separated waste oil back to said waste oil purifying part after its separation from the waste gas discharged from the thermally decomposing furnace by said first and second oil filters, by said oil cooler and by said oil cyclone, and spouting the separated waste oil into tanks through oil nozzles by a power of a high pressure pump.

### Claim 2 (depends on 1)

The waste tire incinerating and post-treating system as claimed in claim 1, wherein said waste tire supplying and sensing device has: a water sucking pipe movable by a cylinder to remove water from an interior of the waste tires before incineration of the waste tires; and a water discharge pump for providing a sucking power to said water sucking pipe.

### Claim 3 (depends on 1)

The waste tire incinerating and post-treating system as claimed in claim 1, wherein said recycling members are angled members for pushing the incineration residual materials to a side.

### Claim 4 (depends on 1)

The waste tire incinerating and post-treating system as claimed in claim 1, wherein said incineration residual material treating part comprises: a first cylinder and a first compressing plate for horizontally moving the incineration residual materials after dropping the residual materials into a residual material compressing part; second and third cylinders and second and third compressing plates for moving the materials up and down and to left and right; oil guides each having oil discharge holes for discharging the waste oil after its separation from the waste gas; and a door and an opening/closing cylinder for opening/closing a residual material outlet.