CN108224439A - A kind of method that house refuse desiccation storage winter burns heat supply - Google Patents
A kind of method that house refuse desiccation storage winter burns heat supply Download PDFInfo
- Publication number
- CN108224439A CN108224439A CN201711482539.5A CN201711482539A CN108224439A CN 108224439 A CN108224439 A CN 108224439A CN 201711482539 A CN201711482539 A CN 201711482539A CN 108224439 A CN108224439 A CN 108224439A
- Authority
- CN
- China
- Prior art keywords
- desiccation
- heat supply
- house refuse
- drying
- treatment
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
- F23G5/04—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment drying
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/08—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
- F23G5/14—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
- F23G5/46—Recuperation of heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D15/00—Other domestic- or space-heating systems
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses the methods that a kind of house refuse desiccation storage winter burns heat supply, include the following steps：1) it is sent after house refuse is weighed through feeding system to bag-breaking machine broken bag；2) drying and other treatment is then carried out；3) after the completion of desiccation, material pit is sent to store by discharge system；4) heat supply in winter season is by the waste incineration heat supply of desiccation.The method of the present invention is suitable for north of China Zhong little cities and counties, and house refuse is spare as solid recovery fuel storage after drying and other treatment, and heat supply in winter season for burning heat supply, can substantially reduce construction investment.
Description
Technical field
The invention belongs to technical field of waste treatment, and in particular to a kind of house refuse desiccation storage winter burns heat supply
Method.
Background technology
China permanent resident population urbanization rate is up to 55% at present, moreover, by Waste sorting recycle system is imperfect, at rubbish
Reason technical merit is low, destructor plant builds influences, the particularly urban, small and medium-sized cities such as unreasonable and faces house refuse and enclose
The predicament in city.
The development of China small and medium-sized cities is too fast, lacks and makes rational planning for domestic rubbish disposal, the urban environment thus caused
It is very universal that quality declines phenomenon.According to China small and medium-sized cities house refuse from generating to collecting, transport, transport, handle and
Whole process analysis is disposed, finds generally existing problems with：First, house refuse, during fortune is received, rubbish exposure is larger,
Phenomena such as foul smell influences ambient enviroment, and sewage spills leakage, secondary pollution is caused to road is serious；Second is that Sanitary Landfill
During operation management, leakage, the case increasing day by day of leachate contamination soil and groundwater are generated；Third, refuse landfill
The foul smell of generation is difficult control.
Small and medium-sized cities generally using sanitary landfills or the single treatment technology of waste incineration and generating electricity, expose many at present
Technological deficiency, and the investment subject of current domestic rubbish disposal is single, credit extending channel are narrow, efficiency in the use of funds is low, leads
Cause domestic rubbish disposal infrastructure construction lag.Since medium and small cities and counties' house refuse amoun is less, waste incineration and generating electricity processing is thrown
Money and operating cost are higher, if medium and small cities and counties' house refuse in the north is standby as solid recovery fuel storage after drying and other treatment
With heat supply in winter season for burning heat supply, can substantially reduce construction investment.
Invention content
Technical scheme of the present invention：
A kind of method that house refuse desiccation storage winter burns heat supply, includes the following steps：
1) it is sent after house refuse is weighed through feeding system to bag-breaking machine broken bag；
2) drying and other treatment is then carried out；
3) it after the completion of desiccation, is sent to material pit and stored by discharge system；
4) heat supply in winter season is by the waste incineration heat supply of desiccation.
1. broken bag
Bag breaking system includes feed and broken bag and cloth three parts part forms.
It after garbage truck is weighed, sails to feeding system, is uniformly sent house refuse to bag breaking system, warp by feeding system
The processing of bag-breaking machine broken bag, refuse bag are torn, crush, and rubbish is uniformly fallen out in bag.House refuse after broken bag is led to
It crosses loading machine and carries out cloth.
Mill floor is handled through anti-corrosion leak-proof, and when rubbish is discharged into elevating hopper, garbage leachate passes through drain ditch, Suo Yougao
Concentration waste water is collected by the collection device that pump is delivered under chain-plate type feeder to liquid collecting well.
Feed workshop is in closed state, forced ventilating, and the foul smell of rubbish is not excessive during ensureing discharging.
2. drying and other treatment
House refuse after broken bag, which is sent by loading machine to desiccation storehouse in drying zone, carries out drying and other treatment.
For garbage drying using the biological dewatered mode of static pile, desiccation storehouse is rectangle, and both sides set partition wall, orlop setting
Air supply duct ensures that oxygen is sufficient in biodegradable, drying process in drying zone, for the ease of controlling air quantity, each desiccation storehouse
The interior independent wind turbine of setting, wind turbine are located at storehouse tail；Orlop sets leachate collecting pipeline simultaneously, oozes drip by what is generated in degradation process
Liquid carries out centralized collection, prevents outflow from being had an impact to surrounding enviroment.
The foul gas generated in trash repository makes drying zone in negative pressure state by the inlet scoop that is set in drying zone,
Accumulation and the spilling of odorous gas are prevented, while the moisture evaporated in rubbish is made smoothly to discharge.Foul smell is handled by deodoration system
Heel row up to standard is to air, so as to effectively ensure the air quality of on-site.Filter screen is disposed in inlet scoop, to ensure inlet scoop
It is unimpeded, it needs periodically to clear up filter screen.
Moist part in rubbish is evaporated in air, enters deodoration system with air-suction duct, the condensate moisture in air
Sewage is formed to be collected.Some another moisture, Leachate site is formed in desiccation storehouse, and being laid with pipeline through orlop collects laggard infiltrate
Drip liquid treating system.
After drying and other treatment msw water content drop to 30% hereinafter, calorific value be increased to about 2500 kilocalories/kilogram, at desiccation
Rubbish is managed as being kept in solid recovery fuel feeding material pit, treats heat supply in winter season centralized burning.
3. heating system
Rubbish is captured the step-transit conveyor for putting into incinerator feeding vertical the top of the warehouse by grab-crane out of garbage pool
In bell mouth, move forward and eventually fallen into the vertical silos of waste incinerator in conveyer.
Rubbish is constantly sent into incinerator, and uniform by rubbish by the continuous rotation of bin bottom double roller charger
It lets go.It is acted on into the rubbish in stove by the high-temperature flue gas stream in furnace body from bottom to top and radiant heat, can rapidly heat up, do
Dry, pyrolysis, gasification, burning, the mixed flue gas of generation enter dual firing chamber, fully burn at a high temperature of >=850 DEG C, using cigarette
200 DEG C are down to after the waste heat recovery of road formula waste heat boiler, into exhaust treatment system, waste heat boiler generates steam and adopted for resident
It is warm.
It burns the coking shape residue generated and is expelled to furnace bottom into below 150mm blocks through rotary fire grate attrition crushing, pass through
Cross the discharge of chain scraper type slag extractor wet type.The steam that waste heat boiler generates enters main steam pipe.
Tail gas by deacidification spray drying tower and bag filter and activated carbon adsorption system purification it is up to standard after be discharged into through chimney
Air.
Specific embodiment
Clear, complete description is carried out to technical solution of the present invention below in conjunction with specific implementation case.
The house refuse desiccation that one processing capacity is 200t/d stores winter and burns project, into factory's house refuse moisture content
It is 50%~60%, unit weight 0.4t/m3, embodiment of the present invention is as follows：
200t/d house refuses store after broken bag into biological dewatered workshop, and drying cycle is 20d or so, single dry
Change storehouse size is 30m × 6m × 3.5m, sets 20 altogether, single silo venting amount is 1500m3/ (h* storehouses), gross area 6300m2。
Through biological dewatered treated garbage water evaporation about 45t/d, percolate about 40t/d is generated, into storage
Workshop about 115t/d, it is spare as solid recovery fuel.Foul gas is generated in desiccation storehouse and is handled by Odor control facility and is reached
It is discharged after mark, Leachate site is formed in desiccation storehouse, collecting laggard infiltrate through pipeline drips liquid treating system or and landfill percolate
Treating stations coexistence is put.
Two burning lines of setting, separate unit 150t/d, solid recovery fuel calorific value 10000kJ/kg handle 230t/d, waste heat
Boiler generates steam for 200,000 square meter heating, heat supply period 6 months.
The above is only the embodiment of the present invention, not makees limitation in any form, art technology to the present invention
Personnel make a little simple modification, equivalent variations or modification using the technology contents of the disclosure above, all fall within the protection of this patent
In the range of.
Claims (8)
1. a kind of method that house refuse desiccation storage winter burns heat supply, which is characterized in that include the following steps：
1) it is sent after house refuse is weighed through feeding system to bag-breaking machine broken bag；
2) drying and other treatment is then carried out；
3) it after the completion of desiccation, is sent to material pit and stored by discharge system；
4) heat supply in winter season is by the waste incineration heat supply of desiccation.
2. method according to claim 1, which is characterized in that the step 1) feeding system that includes is fed, bag-breaking machine broken bag
Cloth is carried out with loading machine.
3. method according to claim 1, which is characterized in that the step 2) drying and other treatment is biological dewatered using static pile
Mode is handled, and desiccation region is in negative pressure state.
4. method according to claim 1, which is characterized in that step 2) the drying and other treatment time is 20 days.
5. method according to claim 1, which is characterized in that the step 2) drying and other treatment carries out in desiccation region, described
Desiccation region sets multiple desiccation storehouses, and ventilation quantity is 1500m in the desiccation storehouse3/h。
6. method according to claim 1, which is characterized in that step 3) the desiccation rubbish is sent into as solid recovery fuel
It is kept in material pit, treats heat supply in winter season centralized burning
7. method according to claim 1, which is characterized in that step 4) is described burn heat supply include heating, dry, pyrolysis,
Gasification, burning, the mixed flue gas of generation enter dual firing chamber, fully burn at a high temperature of >=850 DEG C, using flue type residual heat
200 DEG C are down to after the waste heat recovery of boiler, into exhaust treatment system, waste heat boiler generates steam and is used for resident's heating.
8. method according to claim 1, which is characterized in that the coking shape residue generated by step 4) squeezes through revolving burner
It crushes and is broken into below 150mm blocks and is expelled to furnace bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711482539.5A CN108224439A (en) | 2017-12-29 | 2017-12-29 | A kind of method that house refuse desiccation storage winter burns heat supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711482539.5A CN108224439A (en) | 2017-12-29 | 2017-12-29 | A kind of method that house refuse desiccation storage winter burns heat supply |
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| CN108224439A true CN108224439A (en) | 2018-06-29 |
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| CN201711482539.5A Pending CN108224439A (en) | 2017-12-29 | 2017-12-29 | A kind of method that house refuse desiccation storage winter burns heat supply |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2462252Y (en) * | 2001-01-10 | 2001-11-28 | 武进市常宁环保设备有限公司 | Heat decomposing garbage incinerator |
| CN103480628A (en) * | 2013-09-05 | 2014-01-01 | 浙江博世华环保科技有限公司 | Biological dehydration method for garbage |
| CN104690073A (en) * | 2015-03-10 | 2015-06-10 | 中国城市建设研究院有限公司 | Garage type biological drying method |
| CN105130515A (en) * | 2015-09-07 | 2015-12-09 | 中国中材国际工程股份有限公司 | Aerobic fermentation drying dehydration method for co-processing of life garbage with cement kiln |
| CN205878178U (en) * | 2016-07-06 | 2017-01-11 | 宁波淳源环保科技有限公司 | Rubbish substep pyrolysis combustion apparatus |
| CN106382633A (en) * | 2016-11-16 | 2017-02-08 | 四川省红波环境产业有限公司 | Household garbage incineration treatment system and treatment method |
-
2017
- 2017-12-29 CN CN201711482539.5A patent/CN108224439A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2462252Y (en) * | 2001-01-10 | 2001-11-28 | 武进市常宁环保设备有限公司 | Heat decomposing garbage incinerator |
| CN103480628A (en) * | 2013-09-05 | 2014-01-01 | 浙江博世华环保科技有限公司 | Biological dehydration method for garbage |
| CN104690073A (en) * | 2015-03-10 | 2015-06-10 | 中国城市建设研究院有限公司 | Garage type biological drying method |
| CN105130515A (en) * | 2015-09-07 | 2015-12-09 | 中国中材国际工程股份有限公司 | Aerobic fermentation drying dehydration method for co-processing of life garbage with cement kiln |
| CN205878178U (en) * | 2016-07-06 | 2017-01-11 | 宁波淳源环保科技有限公司 | Rubbish substep pyrolysis combustion apparatus |
| CN106382633A (en) * | 2016-11-16 | 2017-02-08 | 四川省红波环境产业有限公司 | Household garbage incineration treatment system and treatment method |
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Application publication date: 20180629 |
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| RJ01 | Rejection of invention patent application after publication |