Feeding device and cooling system for slag cooler of fluidized bed garbage incinerator

Abstract

The invention discloses a feeding device and a cooling system for a slag cooler of a fluidized bed garbage incinerator. The feeding device comprises a push box assembly and a push box driving device which drives the push box assembly to make reciprocating movement. The push box assembly comprises at least one push box. Moreover, the push box in the push box assembly is communicated with a boiler slag discharging tube of the fluidized bed garbage incinerator and is used for receiving materials from the boiler slag discharging tube, and the materials are pushed into the slag cooler. The feeding device and the cooling system for the slag cooler of the fluidized bed garbage incinerator can achieve continuous and even slag supplying to the slag cooler, a material pushing structure is simple, maintaining is convenient, and working efficiency is high.

Description

technical field [0001] The invention relates to the technical field of waste incineration boilers, in particular to a feeding device and a cooling system for a slag cooler of a fluidized bed waste incinerator. Background technique [0002] A common problem in circulating fluidized bed domestic waste incinerators is that, due to the common presence of iron wires, glass, bricks and other debris in domestic waste, they slowly accumulate at the bottom of the furnace during the combustion process and move down to the slag outlet. Blockage occurs, it is difficult to achieve continuous and uniform slag discharge, and to ensure the sealing during the slag discharge process. This problem has seriously affected the normal combustion of the safe operation and the boiler. [0003] Although the slag discharge technology has been continuously improved from the initial direct discharge to manpower carts, slag extractors, and the current drum slag cooler, the problems of continuous and uni...

AI Technical Summary

Problems solved by technology

[0004] First, discontinuous slag discharge

[0005] Since the pipeline between the lower slag pipe of the boiler and the inlet of the slag cooler is often blocked, the slag discharge is discontinuous, and regular manual dredging is required to reduce the working efficiency of the boiler;

[0006] Second, the amount of slag is uneven

[0007] The amount of slag discharge is determined by the speed of the slag cooler, so the flow rate is extremely unstable, which affects the cooling efficiency of the slag cooler; moreover, if the slag discharge is too large, it will be out of control and cause high-temperature ash in the furnace to be ejected at a high speed

[0008] Third, poor sealing performance

[0009] Because the slag pipe of the boiler is often manually dredged, the air leakage at the dredging port is serious, and safety accidents will occur if there is a slight negligence. In addition, poor sealing will also aggravate equipment wear

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