US 5,169,268 A · Method of measuring supply rate of incineration waste

Abstract

The present invention relates to a method of measuring a supply rate of incineration waste in a fluidized-bed incinerator. The method is characterized in that a passing state of incineration waste ( 3) is detected by an photoelectric element ( 1) arranged on a chute ( 2) for supplying the incineration waste from a dust feeder (4) to an incinerator (5), and a rate of waste (w) is calculated from a detection signal from the photoelectric element in accordance with the following equation: ##EQU1## where w: supply rate of waste per unit time; m: the number of photoelectric elements; t: detection signal time per unit time; T: unit time; and A: constant.

Claims2

Dependent claims

A method of measuring a supply rate of incineration waste in a fluidized-bed incinerator, comprising the steps of:

detecting a passing state of the waste supplied along a supply means which extends from a dust feeder to the incinerator by at least one photoelectric element arranged on supply means,
producing a detection signal in response to said step of detecting, and
measuring a supply rate of waste (w) in response to said detection signal in accordance with the following equation:
##EQU4## where w is the supply rate of waste per unit time,
m is the number of photoelectric elements,
t is a detection signal time per unit time,
T is a unit time, and
A is a constant.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application

07/777,326Filed 25 Nov 1991

Priority

JP 2-7738127 Mar 1990

Granted

8 Dec 1992

Term ends

Not estimatedThe source records don’t support an estimate.

Classification11 codes

F23G 5/50
Incineration of waste ; Incinerator constructions; Details, accessories or control therefor: control or safety arrangements
F23G 5/444
Waste feed arrangements: for solid waste
G01F 1/661
By measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters: using light
G01F 1/74
Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow: devices…

Method of measuring supply rate of incineration waste

Life of this patent

Method of measuring supply rate of incineration waste

Life of this patent

Abstract

Claims2