CN102734801A

CN102734801A - High-efficiency burning heat-supply system for municipal solid wastes

Info

Publication number: CN102734801A
Application number: CN2012102558278A
Authority: CN
Inventors: 郭旭; 王冬戈; 杨龙; 刘立雨; 任国芬; 刘云帆
Original assignee: Tianjin Dewei Environmental Engineering Equipment Co Ltd
Current assignee: Tianjin Dewei Environmental Engineering Equipment Co Ltd
Priority date: 2012-07-20
Filing date: 2012-07-20
Publication date: 2012-10-17

Abstract

The invention relates to a high-efficiency burning heat-supply system for municipal solid wastes, comprising the following steps: coarsely separating (sorting out big recyclable materials and other materials); breaking up bags (breaking up plastic bags to enable materials in plastic bags to be diffused); performing magnetic separation (separating iron metals); sieving (harmlessly burying materials passing through sieves such as sandy soils, and directly crushing materials above sieves); degrading (degrading materials in sieve); extruding and dewatering; drying; crushing; forming; burning; supplying heats; and preparing baking-free bricks with slag. According to the invention, the problem that municipal solid wastes are processed difficultly is solved; at the same time, recycling is performed to prepare high-heating-value regenerative fuel blocks as new energy, investment and floor area are small, processing cycle is short, and operating cost is low.

Description

The efficient burning heating system of domestic waste

Technical field

The invention belongs to a kind of treatment process field of domestic waste, particularly a kind of efficient burning heating system of domestic waste.

Background technology

Chinese city house refuse complicated component comprises waste paper, clothing cloth, dregs, metal, glass, rubbish from cooking etc., is difficult to handle effectively, and composting process in the present stage technology of garbage disposal, directly all there are certain defective in burning process, landfill process.For example for landfill disposal, not only floor space is big, and exists secondary pollution such as polluted source air, and at present a lot of big cities have been difficult to find suitable landfill place.Composting process, long processing period, and produce high-concentration waste water, be difficult to handle contaminated environment.Direct burning process, construction cost and operation cost are high, and consumes energy, have smoke pollution.

In order to overcome the defective of prior art, the invention provides the efficient method of burning of a kind of domestic waste, promptly realized the processing of rubbish, can produce the generative fuel piece of high heating value again, use for heat supply.

Summary of the invention

Technical problem to be solved by this invention is: a kind of efficient burning heating system of domestic waste is provided, and it is the process that domestic waste system high heating value generative fuel burns heat supply.

Technical scheme of the present invention is:

A kind of efficient burning heating system of domestic waste is characterized in that: comprise the following steps: that house refuse carries out ragging earlier, recoverable material stone and polybag do not sort out with the recoverable material fabric of bulk and other bulks; Polybag breaks bag, polybag is broken the polybag materials inside is scattered, and the polybag materials inside of scattering is carried out subsequent treatment; Elder generation's magnetic separation sorts out ferrous metal, sieves again, and the bulk of undersize material sandy soil and preorder is the innoxious landfill of recoverable material stone not; The recoverable material fabric of the bulk of oversize material and preorder is pulverized, and organic material carries out degradation treatment in the sieve, and degraded is through steam the organic matter in the rubbish to be degraded; Organic constitution water discharges, and extrusion dehydration is carried out in preliminary hydro-extraction again; Oven dry; Pulverize, material is processed the generative fuel piece of standard, use Regenerating fuel boiler burning generative fuel piece to carry out heat supply through make-up machine; Burning back slag can be made into non-burning brick.

During degraded, use the degradation reaction agitated reactor, agitated reactor material loading 30 minutes, agitated reactor is incubated 30 minutes, last draining 90 minutes again in 1.1MPa and 180 ℃ of logical steam degradeds in 90 minutes down.

Advantage of the present invention:

The present invention has not only solved the difficult problem that domestic waste is difficult to handle, and resource is simultaneously processed the generative fuel piece of high heating value, becomes a kind of new forms of energy, and investment and floor space are little, and the processing cycle is short, and operating cost is low.

Description of drawings:

Fig. 1 is the efficient burning heating system process flow diagram of domestic waste.

The specific embodiment:

The efficient burning heating system of a kind of domestic waste as shown in the figure comprises the following steps:

(1) ragging sorts out the recoverable material and the unclassified stores of bulk;

(2) broken bag: polybag is broken, the sack materials inside is scattered, to make things convenient for subsequent treatment;

(3) magnetic separation, ferrous metal is sorted out;

(4) screening; The innoxious landfill of undersize material (sandy soil), the oversize material is directly pulverized, and material carries out degradation treatment in the sieve.（

5) degraded is degraded to the organic matter in the rubbish through steam, during degraded, uses the degradation reaction agitated reactor, agitated reactor material loading 30 minutes, and agitated reactor is incubated 30 minutes, last draining 90 minutes again in 1.1MPa and 180 ℃ of logical steam degradeds in 90 minutes down.

Degrading just to make organic constitution water discharge in 1 hour, reached the effect of dehydration, and then improved the calorific value of material, became good fuel auxiliary material;

(6) extrusion dehydration;

(7) oven dry;

(8) pulverize;

(9) the generative fuel piece of standard is processed material through moulding machine in moulding;

(10) burn, use Regenerating fuel boiler burning generative fuel piece, pollution-free, heat energy is utilized efficiently, and slag can be made into non-burning brick;

(11) heat supply, Regenerating fuel boiler connects the heat supply unit, inserts national grid.

Claims

1. the efficient burning heating system of a domestic waste is characterized in that: comprise the following steps: that house refuse carries out ragging earlier, recoverable material stone and polybag do not sort out with the recoverable material fabric of bulk and other bulks; Polybag breaks bag, polybag is broken the polybag materials inside is scattered, and the polybag materials inside of scattering is carried out subsequent treatment; Elder generation's magnetic separation sorts out ferrous metal, sieves again, and the bulk of undersize material sandy soil and preorder is the innoxious landfill of recoverable material stone not; The recoverable material fabric of the bulk of oversize material and preorder is pulverized, and organic material carries out degradation treatment in the sieve, and degraded is through steam the organic matter in the rubbish to be degraded; Organic constitution water discharges, and extrusion dehydration is carried out in preliminary hydro-extraction again; Oven dry; Pulverize, material is processed the generative fuel piece of standard, use Regenerating fuel boiler burning generative fuel piece to carry out heat supply through make-up machine; Burning back slag can be made into non-burning brick.

2. according to the efficient burning heating system of the said domestic waste of claim 1, it is characterized in that: during degraded, use the degradation reaction agitated reactor; Agitated reactor material loading 30 minutes; Agitated reactor is incubated 30 minutes, last draining 90 minutes again in 1.1MPa and 180 ℃ of logical steam degradeds in 90 minutes down.