CN2154958Y

CN2154958Y - Refuse incineration furnace

Info

Publication number: CN2154958Y
Application number: CN 92231262
Authority: CN
Inventors: 李增清; 胡岳威; 阎焕然; 王伟
Original assignee: Beijing Science And Technology Commission Rural Development Center; SPECIALITY DESIGN INST MINISTR
Current assignee: Beijing Science And Technology Commission Rural Development Center; SPECIALITY DESIGN INST MINISTR
Priority date: 1992-08-27
Filing date: 1992-08-27
Publication date: 1994-02-02
Anticipated expiration: 2002-08-27

Abstract

The utility model belongs to a refuse incineration furnace. The furnace body is mainly composed of a coal combustion chamber, a refuse incineration chamber, a pyrolysis deodorizing chamber, etc. The coal combustion chamber and the refuse incineration chamber are respectively provided with a coal delivery device and a refuse delivery device. Two delivery devices can make reverse movement to form the reverse delivering and combusting modes, so that the incineration of the refuse has a preheating and carbonization process, which can make the refuse incinerate thoroughly. The pyrolysis deodorizing chamber is used to carry out further oxidative pyrolysis of the flue gas, which can remove the harmful substances and foul smells of the flue gas and avoid the environmental pollution caused by flue gas. The refuse incineration furnace uses the coal as the auxiliary fuel, which is suitable for the incineration and the treatment of urban refuses and life wastes.

Description

Refuse incineration furnace

The utility model belongs to incinerator.

Present domestic incinerator can be divided into two types of fire coal and fuel oils with regard to auxiliary fuel.With the coal is auxiliary fuel, is fit to national conditions, and this class incinerator version differs from one another, and we think that this class incinerator still comes with some shortcomings: one, combustion system can not guarantee rubbish fast, thoroughly burned.As Chinese patent (notification number CN2051325U) " the coal-fired incinerator of reciprocal grate ", use single fire grate, rubbish places on the coal seam, and is obviously influential to burning away of coal, and rubbish has only in combustion process by the artificial rubbish that stirs, and could guarantee that rubbish is all incinerated.Chinese patent (notification number CN2039387U) " high-temperature resistant double-layer grate incinerator " has solved the problem that coal and rubbish mix, but still has above-mentioned deficiency.Two, disposal ability is little.Because single fire grate and double-deck fixed grate can not make rubbish be back to back, promptly do not reach the degree of a large amount of disposals of refuse, also be difficult for realizing the mechanization of input and output material and reduce working strength of workers.Three, flue gas is handled not thorough.Chinese patent (notification number CN2051325U) " the coal-fired incinerator of reciprocal grate ", its whirlwind arch design is unique, because whirlwind arch space is very little, and very near with combustion chamber and chimney distance, flue gas time of staying in the whirlwind arch is short, and the pyrolysis dust removing effects is not obvious.

The purpose of this utility model is to design a kind of incinerator at above-mentioned weak point, improves the disposal ability of coal-burning incinerator, to satisfy the needs of the extensive burning disposal of municipal refuse.

The utility model incinerator (showing as accompanying drawing) mainly is made up of coal combustion chamber 3, incineration of garbage chamber 4, pyrolysis deodorization chamber * winding paper 5.Coal inlet 2 and coal conveying device 1 are equipped with in coal combustion chamber, and garbage inlet 8 and waste conveyor 9 are equipped with in incineration of garbage chamber, also are provided with slag-drip opening 10 and flue gas discharge opening 6 on the body of heater.Waste conveyor 9 is reverse with the throughput direction of coal conveying device 1, and incineration of garbage chamber 4 is located between coal combustion chamber 3 and the pyrolysis deodorization chamber * winding paper 5.Pyrolysis deodorization chamber * winding paper 5 communicates with coal combustion chamber 3, incineration of garbage chamber 4 and flue gas discharge opening 6, and pyrolysis deodorization chamber * winding paper 5 is the refractory material masonry construction, and is provided with secondary air channel.Build the passage 7 that prevents that flue gas from flying to escape by laying bricks or stones in garbage inlet 8 wing furnace walls, this passage communicates with pyrolysis deodorization chamber * winding paper 5.

Combustion process is that coal conveying device 1 drives the coal burning of direction limit, limit motion towards slag-drip opening 10 from coal inlet 2, guarantees carrying out continuously of processing procedure.Waste conveyor 9 drives rubbish and is moved to the high-temperature region by incineration of garbage chamber low-temperature space against the direction of motion of coal conveying device 1, make rubbish finish a preheating, destructive distillation, until the process of being incinerated.Because the motion of fire grate, rubbish is constantly stirred, is rolled, always having new surface to be exposed in the high-temperature flue gas or directly contacts with flame, shortened the burning time greatly, when rubbish moves to the waste conveyor end, its lime-ash is fallen the coal combustion district on the coal conveying device, and wherein the uncombusted composition is further incinerated, and the lime-ash that produces after the last coal combustion and the incineration of garbage is transported to slag-drip opening by the coal conveying device.The high-temperature flue gas that flue gas that the incineration of garbage produces and coal combustion produce enters pyrolysis deodorization chamber * winding paper 5 and mixes.Because high temperature and the air effect of replenishing, harmful substance in the flue gas and foul odour are eliminated through the pyrolysis oxidation.In addition, flue gas is through the pyrolysis deodorization chamber * winding paper, and part flue dust wherein is retained, thereby has also played the effect of smoke abatement and dust control.When incineration of garbage chamber presented big barotropic condition, flue gas entered pyrolysis deodorization chamber * winding paper 5 through passage 7 and discharges from flue gas discharge opening 6, with normally carrying out of guaranteeing that the incineration of garbage handles and operating personnel's safety.

Claims

1, a kind of incinerator, body of heater is made up of coal combustion chamber 3, incineration of garbage chamber 4, pyrolysis deodorization chamber * winding paper 5, coal inlet 2 and coal conveying device 1 are equipped with in coal combustion chamber, garbage inlet 8 and waste conveyor 9 are equipped with in incineration of garbage chamber, also be provided with flue gas discharge opening 6, slag-drip opening 10 on the body of heater, it is characterized in that the waste conveyor 9 and the throughput direction of coal conveying device 1 are reverse, incineration of garbage chamber is located between coal combustion chamber and the pyrolysis deodorization chamber * winding paper.

2,, it is characterized in that pyrolysis deodorization chamber * winding paper 5 is the refractory material masonry construction, and be provided with secondary air channel that pyrolysis deodorization chamber * winding paper 5 communicates with coal combustion chamber 3, incineration of garbage chamber 4 and flue gas discharge opening 6 according to the described incinerator of claim 1.

3,, it is characterized in that garbage inlet wing furnace wall has been built by laying bricks or stones to prevent the flue gas passage 7 that flies to escape that this passage communicates with the pyrolysis deodorization chamber * winding paper according to the described incinerator of claim 2.