CN1101281C

CN1101281C - Treating method for urban garbage and special equipment

Info

Publication number: CN1101281C
Application number: CN98111484A
Authority: CN
Inventors: 王铁砚
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-09-01
Filing date: 1998-09-01
Publication date: 2003-02-12
Anticipated expiration: 2018-09-01
Also published as: CN1211474A

Abstract

The present invention relates to an urban garbage treating method and special equipment thereof. In the urban garbage treating method which belongs to the field of garbage treating methods, firstly, garbage is classified, and perishable garbage is conveyed to a gas generating tank to manufacture biogas; combustible garbage is conveyed to a burning furnace, and is burnt by using the biogas as fuel. The special equipment is composed of a gas generating tank and a burning furnace. The present invention has the advantages of forming a garbage treating system with comprehensive utilization, simultaneously generating byproducts such as electric energy, vapor, the biogas, clinker products, agricultural fertilizer in the process of garbage treatment, having high social benefit and economic benefit, and burning the urban garbage without external energy sources, raw material or addition agents in the process of garbage treatment.

Description

Treating method for urban garbage and specific equipment

The present invention relates to a kind of waste disposal method, particularly a kind for the treatment of method for urban garbage.

Chinese patent " refuse gasification power generation and heat supply cooling technology and vapourizing furnace thereof " discloses a kind for the treatment of method for urban garbage, publication number CN 1172925A, its garbage treating process process is: rubbish → electromagnetism deironing → manual sorting → vibrosieve → pulverizing letter sorting → electromagnetism deironing → dosing → moulding.The lower end, furnace wall of realizing the vapourizing furnace of above-mentioned technology connects air vapor import and ash bucket, and the upper end, furnace wall connects the gentle gasification outlet of hopper, and the bottom connects grate, the inboard Heat Storing Wall of building in furnace wall, and the upper end connects water-jet in the body of heater, and the bottom connects grate.Have carbon 35% in the rubbish described in the such scheme, act as a fuel with 35% carbon in the rubbish, rubbish is burned, when rubbish humidity is big, the reliability of burning away the refuse will reduce greatly, may cutoff occur and interrupt burning away the refuse.

The objective of the invention is to provide the treating method for urban garbage of a kind of reliability height of burning away the refuse, the not cutoff of burning away the refuse, and the specific equipment of this method of realization.

The object of the present invention is achieved like this: rubbish is classified, perishable rubbish is sent into jar manufacturing biogas of getting angry; Combustiblerefuse is sent into incinerator, is fuel with biogas, and the combustiblerefuse in the incinerator is burned.

Technological process is: municipal wastes is sent into the garbage sorting machine, sort out three class rubbish from the garbage sorting machine, a class rubbish is combustiblerefuse, and combustiblerefuse is sent into the incinerator burning, and incendiary combustiblerefuse heating boiler produces steam, is generated electricity by steam again; Two class rubbish are perishable rubbish, and such rubbish is sent into the jar of getting angry, and perishable rubbish forms methane and fertilizer in the jar of getting angry, and biogas is sent into incinerator and acted as a fuel; Three class rubbish are recycling rubbish, utilize after the recycling refuse reclamation again.

The jar of getting angry has fermentor tank, and being tilted at the bottom of fermentor tank left has a feed-pipe; The right-hand pipeline that has been tilted to, conduit upper has a water pressure house, has a well heater to be inserted in the fermentor tank from the middle and upper part of fermentor tank, and a removable cover is arranged at the top of fermentor tank, and airway, safety valve, jar interior temperature inspection port are arranged on the removable cover.

The incinerator horizontal direction is placed, on the sidewall of an end of incinerator, opening for feed is arranged, on another sidewall of opening for feed top the biogas bocca is arranged, biogas bocca top is a secondary-air passage, in right-hand stove of opening for feed is melting pool, there is vision slit the top of melting pool, slag notch is arranged at the bottom at the incinerator the other end, on the sidewall adjacent the gathering hole of slagging tap is arranged with slag notch, exhaust steam passage is arranged above slag notch, exhaust steam passage is parallel with secondary-air passage, the left end of secondary-air passage vertically downward, exhaust steam passage spirals on secondary-air passage vertically downward downwards.

Owing to adopted such scheme, city garbage specification is sorted, perishable rubbish is sent into the jar of getting angry, make biogas, combustiblerefuse is sent into incinerator, and the heat that utilizes biogas to produce burns the combustiblerefuse in the incinerator, reliability height, not cutoff when burning away the refuse when burning away the refuse have reached purpose of the present invention.Advantage of the present invention is: (1) in the process for the treatment of refuse, can produce by-products such as electric energy, steam, biogas, lime-ash goods, agricultural fertilizer for the refuse disposal system of comprehensive utilization simultaneously, and high social and economic benefit are arranged; (2) must extra power in the refuse treatment process, raw material and any additives, utilize the energy of self that city garbage burning is handled; (3) whole rubbish treating processes all meets national environmental standard.

Be described further in conjunction with the embodiments with reference to the accompanying drawings below.

Fig. 1 is a process flow sheet of the present invention.

Fig. 2 is the jar structure figure that gets angry of the present invention.

Fig. 3 is an incinerator structure iron of the present invention.

Embodiment: at first municipal wastes is sent into the garbage sorting machine, by the garbage sorting machine rubbish is sorted, the letter sorting back produces four class rubbish: (1) fertile absorber rubbish, carry out regeneration; (2) brick producing material rubbish send products factory brickmaking; (3) perishable rubbish is sent into the jar of getting angry, and makes biogas; (4) combustiblerefuse is sent into incinerator and is burned; Jar biogas that produces of getting angry is sent in the incinerator, and the combustiblerefuse in the incinerator is burned, and the jar of getting angry also produces a large amount of fertilizer simultaneously at generation biogas; When the combustiblerefuse in the incinerator burns, the lime-ash that produces is sent to products factory brickmaking, the heat energy that produces adds thermogenesis steam to water, and the steam driven generator generates electricity, and the electric energy that generator produced can supply with the garbage sorting machine, get angry jar, products factory uses.

The jar of getting angry has a fermentor tank 1, and being tilted at the bottom of fermentor tank 1 left has a feed-pipe 3; The right-hand pipeline that has been tilted to, conduit upper has a water pressure house 2, has a well heater 7 to be inserted in the fermentor tank from the middle and upper part of fermentor tank 1, and the top of fermentor tank 1 is semisphere, one removable cover 4 is arranged at hemispheric top, and airway 8, safety valve 6, jar interior temperature inspection port 5 are arranged on the removable cover 4.During use, perishable rubbish is dropped into from feed-pipe 3, add water-lute then, the perishable rubbish in being got angry jar by 7 pairs of well heaters heats, and heating and temperature control is accelerated fermenting speed between 15-60 ℃; By water pressure house 2 control hydraulic pressure, when excessive, protect by safety valve 6 as the jar internal pressure; The biogas that produces in jar is sent to incinerator by airway 8; When needs are cleared up big jar, the removable cover 4 at top opened get final product.

Incinerator is the two arch High-temp. kilns of exchange type, horizontal direction is placed, on the sidewall of an end of incinerator, opening for feed 12 is arranged, on another sidewall of opening for feed 12 tops biogas bocca 16 is arranged, biogas bocca 16 tops are secondary-air passage 9 (being interchanger), in right-hand stove of opening for feed 12 is melting pool 10, there is vision slit 13 top of melting pool 10, in the bottom of the incinerator the other end slag notch 15 is arranged, on the sidewall adjacent the gathering hole of slagging tap 14 is arranged with slag notch 15, exhaust steam passage 11 is arranged above slag notch 15, exhaust steam passage 11 is parallel with secondary-air passage, the left end of secondary-air passage vertically downward, exhaust steam passage 11 spirals on secondary-air passage vertically downward downwards.During use, combustiblerefuse is sent in the incinerator from opening for feed 12, the combustiblerefuse that constantly enters is advanced into melting pool 10 gradually; From jar biogas of sending here of getting angry, by biogas bocca 16 combustiblerefuse in the incinerator is lighted, burned, when producing hot flue gas during burning through exhaust steam passage 11, with air heating in the air passageways, mix with biogas in the heated air admission incinerator, combustion-supporting, behind the incendiary combustiblerefuse heating boiler, can generate electricity.Temperature in the stove can be observed, be detected to vision slit 13; Rubbish after the burning is discharged from slag notch 15.

Claims

1, a kind for the treatment of method for urban garbage comprises rubbish is classified, and perishable rubbish is sent into jar manufacturing biogas of getting angry; Combustiblerefuse is sent into incinerator, with biogas is fuel, combustiblerefuse in the incinerator is burned, it is characterized in that: municipal wastes is sent into the garbage sorting machine, sort out three class rubbish from the garbage sorting machine, a class rubbish is combustiblerefuse, and combustiblerefuse is sent into the incinerator burning, incendiary combustiblerefuse heating boiler produces steam, is generated electricity by steam again; Two class rubbish are perishable rubbish, and such rubbish is sent into the jar of getting angry, and perishable rubbish forms methane and fertilizer in the jar of getting angry, and biogas is sent into incinerator and acted as a fuel; Three class rubbish are recycling rubbish, utilize after the recycling refuse reclamation again.

2, the employed jar of getting angry of a kind of realization claim 1 is characterized in that: the jar of getting angry has fermentor tank, and being tilted at the bottom of fermentor tank left has a feed-pipe; The right-hand pipeline that has been tilted to, conduit upper has a water pressure house, has a well heater to be inserted in the fermentor tank from the middle and upper part of fermentor tank, and a removable cover is arranged at the top of fermentor tank, and airway, safety valve, jar interior temperature inspection port are arranged on the removable cover.

3, the employed incinerator of a kind of realization claim 1, it is characterized in that: the incinerator horizontal direction is placed, on the sidewall of an end of incinerator, opening for feed is arranged, on another sidewall of opening for feed top the biogas bocca is arranged, biogas bocca top is a secondary-air passage, in right-hand stove of opening for feed is melting pool, there is vision slit the top of melting pool, slag notch is arranged at the bottom at the incinerator the other end, on the sidewall adjacent with slag notch the gathering hole of slagging tap is arranged, exhaust steam passage is arranged above slag notch, exhaust steam passage is parallel with secondary-air passage, the left end of secondary-air passage vertically downward, exhaust steam passage spirals on secondary-air passage vertically downward downwards.