CN105716087A - Water circulating method for garbage combustion - Google Patents
Water circulating method for garbage combustion Download PDFInfo
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- CN105716087A CN105716087A CN201610162147.XA CN201610162147A CN105716087A CN 105716087 A CN105716087 A CN 105716087A CN 201610162147 A CN201610162147 A CN 201610162147A CN 105716087 A CN105716087 A CN 105716087A
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- Prior art keywords
- garbage disposal
- water
- disposal furnace
- water tank
- washing pool
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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
-
- 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
- F23G5/027—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a water circulating method for garbage combustion. Firstly, through garbage combustion, water in garbage is evaporated by using high temperature generated by burning the garbage; then, evaporated steam is collected through low-temperature condensation to realize purification and recovery of garbage sewage; and the water circulating method is low in cost and easy to operate. In the water circulating method, the recovered water is leaded in a cooling water tank to supply a low-temperature medium to the steam after further cooling in a distilled water tank, so that primary utilization of the recovered water is realized. After the temperature of the water in the cooling water tank rises, the water is leaded in a water washing pool as a water washing medium, so that secondary utilization of the recovered water is realized. The water circulating method realizes recycling of the water source, and facilitates reduction of the garbage treatment cost, in particular the garbage sewage treatment cost.
Description
Technical field
The present invention relates to technical field of waste treatment, particularly relate to a kind of water round-robin method for incineration firing.
Background technology
Rubbish is mankind's daily life and the solid waste produced in producing, and owing to output is big, complicated component is various, and has contaminative, resource and social.2013, nearly 4.5 hundred million tons of China's Municipal Domestic Garbage Output, and the annual speed increment with 8-10%, sanitary fill storage over the years more than more than 60 hundred million tons, rubbish eroded field area was more than 500,000,000 square metres.As do not dealt carefully with, just pollute the environment, affect environmental health, waste resource, destroy productive life safety, destroy social harmony.
Current existing trash processing way mainly has: sanitary landfills, organic compost, directly burning and cement kiln coexistence are put, but are all difficult to reach desirable state in investment and return.
It addition, conventional garbage processing method, often ignore the process of garbage leachate, or garbage leachate is easily separated post processing, improve processing cost.
Summary of the invention
Based on the technical problem that background technology exists, the present invention proposes a kind of water round-robin method for incineration firing.
A kind of water round-robin method for incineration firing that the present invention proposes, comprises the following steps:
S1, garbage disposal furnace is set, after garbage disposal furnace bottom priming, pours rubbish into garbage disposal furnace and cover above flame；
S2, have in the cooling water tank of water in storage airway to be installed, in garbage disposal furnace, above burning position, extracts the mixing gas in garbage disposal furnace, and mixing gas is imported burning position in garbage disposal furnace after airway；
In S3, the distilled water tank that the condensed water importing of airway inner accumulated is preset；
S4, the tail gas produced by burning position in garbage disposal furnace import in the washing pool preset, the tail gas that the wash pool that discharges water side by side is overflowed；
S5, the precipitate precipitated out in the mixing liquid being dissolved with in tail gas flue dust in washing pool is imported garbage disposal furnace；
S6, water temperature in cooling water tank raised import washing pool；
S7, by distilled water tank cooling after water import cooling water tank.
Preferably, step S2A is also included: burning position imports oxygen-fed gas in garbage disposal furnace.
Preferably, also including step S3A: arrange slag collection case, burn in discharge garbage disposal furnace the slag and ashes that produce, and slag imports after separating treatment slag collection case from ashes.
Preferably, step S4 is particularly as follows: import the tail gas that burning position in garbage disposal furnace produces in default washing pool after slag collection case.
Preferably, also include in step S4A, to discharge after the tail gas clean-up overflowed in washing pool.
Preferably, in step S5, the precipitate precipitated out in washing pool is imported garbage disposal furnace bottom washing pool, and on the rubbish being sprayed onto in garbage disposal furnace the superiors by the spray head being arranged in garbage disposal furnace.
Water round-robin method for incineration firing provided by the invention, first pass through combustion refuse, utilize the high temperature that incineration firing produces that the moisture in rubbish is evaporated, then pass through condensation at low temperature the steam after evaporation is collected, achieve the Recovery Purifying of garbage leachate, and with low cost, it is easy to operation.
In the present invention, the water after recovery enters and is imported into cooling water tank after distilled water tank dissipates temperature further as the medium providing low temperature for steam, it is achieved that the once utilization of recycle-water.Coolant-temperature gage in cooling water tank is imported into washing pool as washing medium after raising, it is achieved that the secondary of recycle-water utilizes.The precipitate that in washing pool, solution concentration rising precipitates out after reaching capacity is imported into garbage disposal furnace, and the moisture in precipitate is reclaimed again by distillation, it is achieved that recycling of water resource.
In the present invention, pass sequentially through garbage disposal furnace evaporation, airway condensation, distilled water tank heat radiation, cooling water tank is excessive, washing pool is muddy, moisture in rubbish is reclaimed and recycles, has both solved the problem that garbage leachate processes, reduced again garbage disposal cost.
Accompanying drawing explanation
Fig. 1 is a kind of water round-robin method flow chart for incineration firing that the present invention proposes；
Fig. 2 is a kind of garbage disposal water circulation system structural representation that the present embodiment proposes.
Detailed description of the invention
With reference to Fig. 1, a kind of water round-robin method for incineration firing that the present invention proposes, comprise the following steps:
S1, garbage disposal furnace is set, after garbage disposal furnace bottom priming, pours rubbish into garbage disposal furnace and cover above flame.Rubbish covers and smoulders on flame so that incineration firing is relatively mild, is conducive to improving work circumstances safe.Be embodied as be, it is also possible to lay after one layer of ashes at garbage disposal furnace bottom, ashes laid igniting after fuel.Burning position can be incubated by the laying of ashes.In present embodiment, garbage disposal furnace in combustion, maintains negative pressure state inside it, and harmful gas can be avoided to overflow, and produces explosion phenomenon after avoiding inflammable and explosive substances burning simultaneously.
S2, have in the cooling water tank of water in storage airway to be installed, in garbage disposal furnace, above burning position, extracts the mixing gas in garbage disposal furnace, and mixing gas is imported burning position in garbage disposal furnace after airway.
Garbage disposal furnace interior, according to temperature and oxygen content, is divided into oxide layer, reducing zone, dry distilling layer and drying layer, and harmful components are aoxidized by oxide layer, and rubbish is decomposed by reducing zone, and rubbish is carried out dehydrate by drying layer and dry distilling layer.Mixing gas comprises reducing zone and decomposes the fuel gas such as methane etc. produced, also include steam.Mixing gas imports burning position after dewatering, and can promote the burning of rubbish in garbage disposal furnace.
Moisture in rubbish condenses the distilled water becoming purer again in airway after distillation, can use as resource.
S2A: burning position imports oxygen-fed gas in garbage disposal furnace.Support gas to pour the burning that can avoid causing due to anoxia into insufficient.
In S3, the distilled water tank that the condensed water importing of airway inner accumulated is preset.Condensed water stores in distilled water tank and lowers the temperature further, with for later use.
S3A: arrange slag collection case, burn in discharge garbage disposal furnace the slag and ashes that produce, and slag imports after separating treatment slag collection case from ashes.The derivation of slag ashes, it is ensured that the space availability ratio in garbage disposal furnace.In this step, slag and ashes are easily separated, both can be utilized respectively, improve utilization ratio, for instance ashes use as organic fertilizer, and slag can be used for paving the way.
S4, by garbage disposal furnace burning position produce tail gas import after slag collection case in default washing pool, the wash pool that discharges water side by side overflow tail gas.Tail gas is washed by washing pool, tail gas can be avoided to carry soot emissions and cause dust pollution.In this step, discharge after the tail gas clean-up that washing pool is overflowed, in order to be further ensured that the discharge safety of tail gas.Tail gas through slag collection case, carried the dust of residual in slag and enters washing pool, both by tail gas, the dust remained in slag was easily separated, it is to avoid the dust pollution in slag transportation, has saved the cost that dust in slag is processed.
S5, the precipitate precipitated out in the mixing liquid being dissolved with in tail gas flue dust in washing pool is imported garbage disposal furnace.Moisture in precipitate is evaporated in garbage disposal furnace and continues cycling through for the part in mixing gas, and precipitate becomes slag ashes from new burning after mixing with rubbish.
Owing to flue dust precipitates downwards in washing pool, in this step, bottom washing pool, the precipitate in washing pool is imported garbage disposal furnace, and on the rubbish being sprayed onto in garbage disposal furnace the superiors by the spray head that is arranged in garbage disposal furnace, in order to moisture has time enough to evaporate.
S6, water temperature in cooling water tank raised import washing pool to reduce washing pool solution concentration, it is ensured that the washing pool water washing effect to tail gas.
S7, by distilled water tank cooling after water import cooling water tank to ensure the low temperature environment in cooling water tank, it is ensured that steam condensation in airway.
Below in conjunction with a specific embodiment, above method is described further.
With reference to Fig. 2, a kind of garbage disposal water circulation system that the present embodiment proposes, it is circulated utilization for the distilled water that incineration firing in garbage disposal furnace 1 is produced.Garbage disposal furnace 1 is the container of opened type structure, and after laying one layer of ashes bottom it, then on ashes, laying fuel is lighted a fire, and then pours rubbish into garbage disposal furnace and covers on fuel.So, in garbage disposal furnace 1, rubbish being smouldered, rubbish is burnt by burning position, and produces high temperature the rubbish above burning position carries out pyrolytic, and the steam comprised in rubbish is vaporized.
This garbage disposal water circulation system includes: cooling water tank 2, airway 3, distilled water tank 4 and washing pool.
It is filled with water in cooling water tank 2, airway 3 is arranged in cooling water tank 2 and submerged in water, first end of airway 3 is connected with garbage disposal furnace 1 by the first suction machine 6, and the first suction machine 6 wraps steam-laden mixing gas for extracting above burning position in garbage disposal furnace 1.Airway 3 second end is connected with garbage disposal furnace 1 by snorkel 7, and snorkel 7 is for importing burning position in garbage disposal furnace 1 by mixing gas.The mixing gas produced in garbage disposal furnace 1 includes rubbish and at high temperature decomposes the steam that the fuel gas such as methane of generation also includes being evaporated from rubbish.In present embodiment, will mixing gas after by airway 3, owing in cooling water tank 2, temperature is relatively low, the water vapor condensation in mixing gas is attached in airway 3, thus the moisture removed in mixing gas, it is to avoid the incineration firing of burning position is adversely affected by moisture.After mixing gas is transported to burning position, fuel gas therein carries out combustion-supporting, it is ensured that being smoothed out of incineration firing, it is to avoid substance combustion nonflammable in rubbish is insufficient.Meanwhile, harmful substance is carried out fully oxidized also by superhigh temperature by burning position, it is to avoid harmful gas is directly discharged.
In present embodiment, in order to avoid the harmful gas in garbage disposal furnace 1 is overflowed, in garbage disposal furnace 1, maintain negative pressure state.So, owing to garbage disposal furnace is opened type structure, so, under first suction machine 6 duty, outside air enters garbage disposal furnace and is extracted by the first suction machine 6, so, it is transported in the mixing gas of burning position and also comprises oxygen, to avoid the burning that anoxia causes insufficient.In present embodiment, in order to avoid the confession hypoxgia of burning position further, being also provided with aerator 17, its air outlet connects with garbage disposal furnace 1 for importing oxygen-fed gas to burning position.
In present embodiment, airway 3 is serpentine pipe.To extend, mix gas flowing duration in airway 3, improve the condensation effect to steam.
Airway 3 connects with distilled water tank 4 also by the first flow pipe 15.The water condensed in airway 3 can pass through the first flow pipe 15 and import in distilled water tank 4.In present embodiment, airway 3 is positioned at above distilled water tank 4, and the first flow pipe 15 is provided with check valve 16.So, the water in airway 3 discharges from trend the first flow pipe 15, and when the water in the first flow pipe 15 runs up to a certain degree, check valve 16 can be rushed to open, so that the water in airway 3 flows into distilled water tank 4.In present embodiment, the water automatic-discharging in airway 3, namely avoid the cost increasing driving mechanism, turn avoid airway 3 internal water accumulation and too much reduce the water removal effect of mixing gas.In present embodiment, the water gathered in the first flow pipe 15, the mixing gas in airway 3 can be avoided to flow into distilled water tank 4, it is to avoid harmful gas is directly discharged.
Distilled water tank 4 is connected with cooling water tank 2 by the second flow pipe 8, and the second flow pipe 8 is provided with the second suction machine 9.Cooling water tank 2 is connected with washing pool 5 by the 3rd flow pipe 10, and the 3rd flow pipe 10 is provided with the 3rd suction machine 11.
Washing pool 5 is connected with garbage disposal furnace 1 by the 4th suction machine 12, and the 4th suction machine 12 imports in the water in washing pool 5 for the tail gas produced by burning position in garbage disposal furnace 1, and washing pool 5 is positioned at and is above water provided with excessive gas outlet.Washing pool 5 is provided with precipitate outlet, and precipitate outlet is connected with the spray head 14 being arranged within garbage disposal furnace 1 by the 5th suction machine 13.
In present embodiment, after coolant-temperature gage in cooling water tank 2 raises, can import in washing pool 5, to reduce the ratio of solute such as flue dust and water in washing pool 5, thus improving the washing pool 5 water washing effect to tail gas, then can import cooling water tank 2 through the distilled water after cooling in distilled water tank 4 and airway 3 is lowered the temperature.Washing pool 5 dissolves flue dust too much rear solution and reaches capacity state thus precipitating out precipitate, when precipitate reaches to a certain degree, the 4th suction machine 12 can be passed through extract the precipitate in washing pool 5 and be sprayed onto in incinerator 1 by spray head 14, moisture in precipitate is incinerated in stove 1 high temperature evaporation and becomes steam to return to distilled water tank 4 after becoming the ingredient of mixing gas, precipitate along with rubbish burned together after discharge as slag.
In present embodiment, achieve by garbage disposal furnace 1, airway 3, distilled water tank 4, cooling water tank 2 and washing pool, it is achieved that in rubbish, moisture recycles, it is achieved that the self-sufficiency of clean water in garbage processing procedure, be conducive to saving cost, and solve the process problem of garbage leachate.
In present embodiment, can promote to maintain in garbage disposal furnace 1 negative pressure state by controlling the duty of the 5th suction machine and aerator 17, for instance make tail gas output flow velocity more than aerator 17 to the speed of supply in garbage disposal furnace.
In present embodiment, the second flow pipe 8 connects one end of distilled water tank 4 and inserts distilled water tank 4 and bottom it.Present embodiment is red, and spray head 14 is arranged on the position in garbage disposal furnace 1 near top, in order in precipitate, moisture has enough evaporation times.
The garbage disposal water circulation system that present embodiment provides, also include slag collection case, slag collection case is provided with slag import, inlet exhaust gas and offgas outlet, and slag import all connects with garbage disposal furnace 1 with inlet exhaust gas, and offgas outlet is connected with washing pool 5 by the 4th suction machine 12.Being communicated with the slag emission mouth of slag import on garbage disposal furnace 1, be provided with the separating mechanism separated by dust-like ashes in slag between slag import and slag emission mouth, slag enters slag collection case by separating mechanism.Slag in incinerator 1 and ashes are discharged by slag emission mouth, can avoid in garbage disposal furnace 1 owing to slag accumulates the problem too much taking capacity.In present embodiment, tail gas is re-introduced into washing pool 5 after slag collection case, and the dust in slag is easily separated by available tail gas, it is to avoid slag causes dust pollution.
The above; it is only the present invention preferably detailed description of the invention; but protection scope of the present invention is not limited thereto; any those familiar with the art is in the technical scope that the invention discloses; it is equal to replacement according to technical scheme and inventive concept thereof or is changed, all should be encompassed within protection scope of the present invention.
Claims (6)
1. the water round-robin method for incineration firing, it is characterised in that comprise the following steps:
S1, garbage disposal furnace is set, after garbage disposal furnace bottom priming, pours rubbish into garbage disposal furnace and cover above flame；
S2, have in the cooling water tank of water in storage airway to be installed, in garbage disposal furnace, above burning position, extracts the mixing gas in garbage disposal furnace, and mixing gas is imported burning position in garbage disposal furnace after airway；
In S3, the distilled water tank that the condensed water importing of airway inner accumulated is preset；
S4, the tail gas produced by burning position in garbage disposal furnace import in the washing pool preset, the tail gas that the wash pool that discharges water side by side is overflowed；
S5, the precipitate precipitated out in the mixing liquid being dissolved with in tail gas flue dust in washing pool is imported garbage disposal furnace；
S6, water temperature in cooling water tank raised import washing pool；
S7, by distilled water tank cooling after water import cooling water tank.
2. the water round-robin method for incineration firing as claimed in claim 1, it is characterised in that also include step S2A: burning position imports oxygen-fed gas in garbage disposal furnace.
3. the water round-robin method for incineration firing as claimed in claim 1, it is characterized in that, also including step S3A: arrange slag collection case, burn in discharge garbage disposal furnace the slag and ashes that produce, and slag imports after separating treatment slag collection case from ashes.
4. the water round-robin method for incineration firing as claimed in claim 3, it is characterised in that step S4 is particularly as follows: import the tail gas that burning position in garbage disposal furnace produces in default washing pool after slag collection case.
5. the water round-robin method for incineration firing as claimed in claim 1, it is characterised in that also include in step S4, to discharge after the tail gas clean-up overflowed in washing pool.
6. the water round-robin method for incineration firing as claimed in claim 1, it is characterized in that, in step S5, bottom washing pool, the precipitate that precipitate out in washing pool is imported garbage disposal furnace, and on the rubbish being sprayed onto in garbage disposal furnace the superiors by the spray head being arranged in garbage disposal furnace.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610162147.XA CN105716087A (en) | 2016-03-21 | 2016-03-21 | Water circulating method for garbage combustion |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610162147.XA CN105716087A (en) | 2016-03-21 | 2016-03-21 | Water circulating method for garbage combustion |
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| CN105716087A true CN105716087A (en) | 2016-06-29 |
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| CN201610162147.XA Pending CN105716087A (en) | 2016-03-21 | 2016-03-21 | Water circulating method for garbage combustion |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110848709A (en) * | 2019-11-25 | 2020-02-28 | 李平 | Combustion and purification integrated furnace and application thereof |
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| JP2001241629A (en) * | 2000-03-01 | 2001-09-07 | Mitsubishi Heavy Ind Ltd | Low-pollution combustion equipment for waste |
| CN1769397A (en) * | 2005-10-19 | 2006-05-10 | 天津大学 | Device and method for suppressing refuse end gas injurant using pyrolysis and aerification technology |
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| CN204756938U (en) * | 2015-05-01 | 2015-11-11 | 王增日 | Novel chemical industry system of trash disposal |
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2016
- 2016-03-21 CN CN201610162147.XA patent/CN105716087A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001241629A (en) * | 2000-03-01 | 2001-09-07 | Mitsubishi Heavy Ind Ltd | Low-pollution combustion equipment for waste |
| CN1769397A (en) * | 2005-10-19 | 2006-05-10 | 天津大学 | Device and method for suppressing refuse end gas injurant using pyrolysis and aerification technology |
| CN201158629Y (en) * | 2007-12-15 | 2008-12-03 | 周开根 | Rubbish biomass poly-generation processing system and equipment |
| CN204756938U (en) * | 2015-05-01 | 2015-11-11 | 王增日 | Novel chemical industry system of trash disposal |
Non-Patent Citations (2)
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| 何强等: "《西部小城镇污水处理设施建设技术指南》", 30 September 2011 * |
| 黄忠彩: "《中国人类学民族学研究会优秀论文集》", 28 February 2016 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110848709A (en) * | 2019-11-25 | 2020-02-28 | 李平 | Combustion and purification integrated furnace and application thereof |
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Application publication date: 20160629 |