CN102294348A

CN102294348A - High-efficient incineration generating system for municipal domestic wastes

Info

Publication number: CN102294348A
Application number: CN2011102752269A
Authority: CN
Inventors: 郭旭; 王冬戈; 刘立雨; 刘奇林; 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: 2011-09-16
Filing date: 2011-09-16
Publication date: 2011-12-28

Abstract

The invention discloses a high-efficient incineration generating system for municipal domestic wastes. A method comprises the following steps of: (1) coarsely sorting; (2) breaking bags, namely breaking plastic bags and dispersing materials inside the bags; (3) performing magnetic separation, namely sorting ferrous metal out; (4) screening, namely burying materials (sand soil) below a screen in an innocent way, and grinding materials on the screen directly; (5) degrading, namely degrading the screened materials; (6) extruding for dehydration; (7) drying; (8) grinding; (9) molding; (10) incinerating; and (11) generating power, wherein slag can be prepared into baking-free bricks. By the system and the method, the problem of difficulty in treatment of the municipal domestic wastes is solved; simultaneously, the municipal domestic wastes are recycled and prepared into regenerated fuel blocks with high calorific values and become a new energy source; and the system has low investment, small occupied area, short treatment cycles and low operation cost.

Description

The efficient burning electricity generation system of domestic waste

Technical field:

The present invention relates to a kind of treatment process of domestic waste, the field of the efficient burning electricity generation of particularly a kind 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, there are smoke pollution in construction cost and operation cost height, and consumes energy.

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 generating.

Summary of the invention:

Technical problem to be solved by this invention is: the process that a kind of domestic waste system high heating value generative fuel burning electricity generation is provided.

Technical scheme of the present invention is:

A kind of efficient burning electricity generation 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 carries out broken bag, polybag broken the polybag materials inside is scattered, the polybag materials inside of scattering is carried out subsequent treatment, elder generation's magnetic separation sorts out ferrous metal, sieve again, 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, organic material carries out degradation treatment in the sieve, degraded is by 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, logical make-up machine is made the generative fuel piece of standard with material, uses Regenerating fuel boiler burning generative fuel piece to generate electricity the generative fuel piece; Burning back slag can be made into non-burning brick.

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

The present invention has not only solved the difficult problem that domestic waste is difficult to handle, and resource is simultaneously made 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 electricity generation system process sketch of domestic waste.

The specific embodiment:

A kind of efficient burning electricity generation system of domestic waste is characterized in that: comprise 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 by steam, during degraded, uses the degradation reaction reactor, reactor material loading 30 minutes, and 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 made material by 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) generating, Regenerating fuel boiler connects generating set, inserts national grid.

Claims

1. the efficient burning electricity generation 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 carries out broken bag, polybag broken the polybag materials inside is scattered, the polybag materials inside of scattering is carried out subsequent treatment, elder generation's magnetic separation sorts out ferrous metal, sieve again, 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, organic material carries out degradation treatment in the sieve, degraded is by 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, logical make-up machine is made the generative fuel piece of standard with material, uses Regenerating fuel boiler burning generative fuel piece to generate electricity the generative fuel piece; Burning back slag can be made into non-burning brick.

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