CN105987386A - Circulation water cooling heat exchange system in garbage treatment complete equipment - Google Patents
Circulation water cooling heat exchange system in garbage treatment complete equipment Download PDFInfo
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- CN105987386A CN105987386A CN201510093475.4A CN201510093475A CN105987386A CN 105987386 A CN105987386 A CN 105987386A CN 201510093475 A CN201510093475 A CN 201510093475A CN 105987386 A CN105987386 A CN 105987386A
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Abstract
The invention provides a circulation water cooling heat exchange system in garbage treatment complete equipment, and belongs to the technical field of garbage treatment. The circulation water cooling heat exchange system solves the technical problem that the treating performance of existing garbage treatment complete equipment is poor. The equipment comprises a pyrolysis gasification burning system, the circulation water cooling heat exchange system and a heat source reusing system; the pyrolysis gasification burning system can convey gas formed after garbage pyrolysis gasification into the circulation water cooling heat exchange system through a gas conveying pipe; the circulation water cooling heat exchange system comprises an induced draft fan, a water pump and a plurality of heat exchangers, one end of the induced draft fan is connected with the pyrolysis gasification burning system through a gas conveying pipe, the other end of the induced draft fan is connected with one heat exchanger through a gas conveying pipe, and the heat exchanger also penetrates a garbage drying bin through a cooling water pipe to be connected with the heat source reusing system; and the water pump is connected with all heat exchangers through cooling water pipes. By means of the circulation water cooling heat exchange system, the garbage treatment performance can be improved.
Description
Technical field
The invention belongs to technical field of waste treatment, relate to the recirculated water cooling heat-exchange system in a kind of garbage disposal complete set of equipments.
Background technology
Rubbish is the solid waste produced in mankind's daily life and production, owing to output is big, complicated component is various, and has contaminative, resource and social, needs innoxious, resource, minimizing and socialization to process, as do not dealt carefully with, just pollute the environment, affect environmental health, waste resource, destroy productive life safety, destroy social harmony.Garbage disposal seeks to a rubbish and removes rapidly, and carries out harmless treatment, is the most reasonably utilized.Current wide variety of waste disposal method is sanitary landfills, During High-Temperature Composting and commonly burns.
For sanitary landfill method, the method is the improvement of the mode stacked rubbish countryside, simply fill.Its shortcoming be landfill need land occupation many, the soil filled can only greening and afforestation, use by a definite limitation.The secondary pollution processing cost produced during landfill is high, and air, soil and water source can be caused severe contamination, not only break up environment by the harmful components in rubbish, also serious harm health.
For organic compost method, its cause bacterium decomposition is accelerated in it is critical only that of the method, is mainly affected by factors such as the nutrient in rubbish, temperature, pH values, and shortcoming is that refuse classification requirement is high, can not process the most putrescible Organic substance and inorganic matter, volume reduction, decrement and harmless treatment degree are low；It is easily generated seepage and stink etc. during composting to pollute.And compost treatment can not minimizing, still need to take a large amount of soil.
For burning disposal method, being characterized in that treating capacity is big, volume reduction is good.Shortcoming is: construction investment is huge, and operating cost is high, and economic benefit is undesirable, can produce secondary pollution.Burning electricity generation is to utilize to burn the principle that the heat energy produced carries out generating electricity.But garbage treatment quantity is had certain requirement, is not suitable for the scale that rubbish day output is less.
Summary of the invention
The present invention be directed to the problems referred to above that existing technology exists, it is provided that the recirculated water cooling heat-exchange system in a kind of garbage disposal complete set of equipments, the technical problem to be solved is: how to improve the process performance of this garbage disposal complete set of equipments.
The purpose of the present invention can be realized by following technical proposal:
A kind of recirculated water cooling heat-exchange system in garbage disposal complete set of equipments, described equipment includes: thermal decomposition gasification combustion system, recirculated water cooling heat-exchange system and thermal source reclaiming system, and the gas that described pyrolysis gasification system can be formed after being gasified by refuse pyrolysis is delivered in recirculated water cooling heat-exchange system by gas pipeline；It is characterized in that, described recirculated water cooling heat-exchange system includes air-introduced machine, water pump and several heat exchangers, described air-introduced machine one end is connected with described thermal decomposition gasification combustion system by gas pipeline, and the described air-introduced machine other end is connected with a wherein heat exchanger by gas pipeline and this heat exchanger is connected with described thermal source reclaiming system through described drying garbage storehouse also by a cooling water pipeline；Described water pump is connected with each heat exchanger by cooling water pipeline.
Its operation principle is as follows: the major function of recirculated water cooling heat-exchange system is that the heat produced during pyrolytic gasification is recycled in processing system provide newly to enter the preheating of rubbish, dry required heat energy again, and the heat energy that system is had more than needed then is made hot water and used as secondary recovery.In pyrolytic gasification storehouse, the high-temperature gas of generation, tar etc. enter heat exchanger under the power that air-introduced machine provides, heat exchange cooling is carried out with the cooling water of opposite direction circulation, cooling water temperature after heat exchange raises, enter thermal decomposition gasification combustion system be dried and again heat, thus improve the garbage disposal performance of this garbage disposal complete set of equipments, and improve its economic benefit.
In recirculated water cooling heat-exchange system in above-mentioned a kind of garbage disposal complete set of equipments, described thermal decomposition gasification combustion system includes along the garbage feeding storehouse that short transverse sets gradually from top to bottom, drying garbage storehouse, rubbish dry distilling storehouse, oxidoreduction storehouse and screw slag removing storehouse；The upper end in described garbage feeding storehouse is provided with electric cabin door, and described drying garbage storehouse is connected with described garbage feeding storehouse, and the rubbish in feeding warehouse can be fallen in drying garbage storehouse under gravity；Described oxidoreduction storehouse is connected with described drying garbage storehouse, rubbish in drying garbage storehouse can be fallen in rubbish dry distilling storehouse under gravity, rubbish dry distilling storehouse can carry out carbonization to the combustible in rubbish, rubbish after rubbish dry distilling storehouse processes can enter in oxidoreduction storehouse, is provided with burner in described oxidoreduction storehouse；Described screw slag removing storehouse is connected with described oxidoreduction storehouse, discharges storehouse outside in the slag charge produced can enter screw slag removing storehouse and by screw slag removing device after pyrolytic gasification.
In recirculated water cooling heat-exchange system in above-mentioned a kind of garbage disposal complete set of equipments, described heat exchanger is respectively a heat exchanger, No. two heat exchangers and No. three heat exchangers, a described heat exchanger is connected with described thermal source reclaiming system through described drying garbage storehouse by a cooling water pipeline, one end of described No. two heat exchangers is connected with a described heat exchanger by a cooling water pipeline, the other end of described No. two heat exchangers is connected by cooling water pipeline and No. two heat exchangers, and one end of described No. three heat exchangers is connected by cooling water pipeline and No. two heat exchangers.
In recirculated water cooling heat-exchange system in above-mentioned a kind of garbage disposal complete set of equipments, described equipment also includes a knockout tower and No. two knockout towers, and the two ends of a described knockout tower are connected with described oxidoreduction storehouse and a heat exchanger by gas pipeline respectively；Described No. two knockout towers are connected with described No. three heat exchangers by gas pipeline, and described No. two heat exchangers are connected also by a gas pipeline and a heat exchanger.
In above-mentioned a kind of garbage disposal complete set of equipments, described air-introduced machine two ends are connected with described No. three heat exchangers and No. two knockout towers by gas pipeline respectively, described equipment also includes aerator, one end of described aerator is connected with described No. two knockout towers by gas pipeline, and the other end is connected with described oxidoreduction storehouse by gas pipeline.
In above-mentioned a kind of garbage disposal complete set of equipments, described water pump is connected with described No. two knockout towers and described No. three heat exchangers, No. two heat exchangers, a heat exchanger and thermal source reclaiming system is together in series by some cooling water pipelines.
Compared with prior art, the invention have the advantages that
The major function of recirculated water cooling heat-exchange system is that the heat produced during pyrolytic gasification is recycled in processing system provide newly to enter the preheating of rubbish, dry required heat energy again, and the heat energy that system is had more than needed then is made hot water and used as secondary recovery.In pyrolytic gasification storehouse, the high-temperature gas of generation, tar etc. enter knockout tower and heat exchanger under the power that air-introduced machine provides, heat exchange cooling is carried out with the cooling water of opposite direction circulation, cooling water temperature after heat exchange raises, and enters thermal decomposition gasification combustion system and is dried and again heats.
Accompanying drawing explanation
Fig. 1 is the structural representation of this garbage disposal complete set of equipments in embodiment.
In figure, 1, thermal decomposition gasification combustion system；3, slag charge categorizing system；4, flue gas secondary combustion system；5, garbage feeding storehouse；6, drying garbage storehouse；7, oxidoreduction storehouse；8, screw slag removing storehouse；9, air-introduced machine；10, water pump；11, a heat exchanger；12, No. two heat exchangers；13, a knockout tower；14, No. two knockout towers；15, aerator；16, No. three heat exchangers；17, three grades of exhaust gas treating devices；18, exhaust port；19, air inlet oxygenation pipeline；20, thermal source reclaiming system；21, gas pipeline；22, cooling water pipeline；23, rubbish dry distilling storehouse.
Detailed description of the invention
The following is the specific embodiment of the present invention and combine accompanying drawing, technical scheme is further described, but the present invention is not limited to these embodiments.
As it is shown in figure 1, this garbage disposal complete set of equipments includes: thermal decomposition gasification combustion system 1, thermal decomposition gasification combustion system 1 is the core component of complete equipment, and appearance is a warehouse structure closed.Pyrolysis gasification system is connected with recirculated water cooling heat-exchange system by gas pipeline 21, it is possible to the gas formed after being gasified by refuse pyrolysis is delivered in recirculated water cooling heat-exchange system by gas pipeline 21；Specifically, thermal decomposition gasification combustion system 1 include along the garbage feeding storehouse 5 that short transverse sets gradually from top to bottom, drying garbage storehouse 6, rubbish dry distilling storehouse 23, oxidoreduction storehouse 7 and screw slag removing storehouse 8；The upper end in garbage feeding storehouse 5 is provided with electric cabin door, and drying garbage storehouse 6 is connected with garbage feeding storehouse 5, and the rubbish in feeding warehouse can be fallen in drying garbage storehouse 6 under gravity；House refuse needs not move through independent sorting, dehydrate can be directly entered this system and process, and garbage feeding position in storehouse is in the top of whole warehouse, and after starting electric cabin door, cram packer can directly pour car load rubbish into feeding warehouse.Being provided with guiding part flow arrangement in the middle of feeding warehouse, rubbish can dispense uniformly.Electric cabin door is shut, it is ensured that the stink of rubbish will not distribute after discharging.Oxidoreduction storehouse 7 is connected with drying garbage storehouse 6, rubbish in drying garbage storehouse 6 can be fallen in oxidoreduction storehouse 7 under gravity, drying garbage storehouse can be dried from heat-supplying mode, need not additionally consume the energy, mainly there are two parts: one rubbish burns the high-temperature gas produced in oxidoreduction storehouse, still with uniform temperature after carrying out water-cooled heat exchange, after this part fuel gas return combustion, pipeline can be heated thus rubbish is dried；Its two cooling water temperature after carrying out heat exchange with high-temperature gas entering circulating water cooling system can raise, and also can necessarily be dried rubbish after entering dryness storehouse interior conduit.Rubbish in drying garbage storehouse can be fallen in rubbish dry distilling storehouse 23 under gravity, and rubbish dry distilling storehouse 23 can carry out carbonization to the combustible in rubbish, and the rubbish after rubbish dry distilling storehouse 23 processes can enter in oxidoreduction storehouse；Dried rubbish enters rubbish dry distilling storehouse 23 under self-gravity action, and in storehouse, about 1300 degree of high temperature make the whole carbonization of combustible in rubbish, and in carbonisation, produced imflammable gas, dust, tar are fed again into oxidoreduction storehouse after exhaust treatment system.It is provided with burner in oxidoreduction storehouse 7；The rubbish being carbonized after dry distilling enters oxidoreduction storehouse under gravity, a number of trapezoidal burner it is disposed with in storehouse, apparatus surface has a number of small sircle hole, the fuel gas melted down up is jetted by small sircle hole and is burnt, and the rubbish being carbonized is played redox effect, the most produced heat is as the thermal source in dry distilling storehouse.Oxidoreduction storehouse is the key component in whole system, and its major function is:
After dry distilling, the whole oxidoreduction of carbon produced by rubbish is complete；
Inorganic matter in rubbish is entered slag charge storehouse through high-temperature fusion；
The fuel gas return combustion that dry distilling link produces；
Heat energy required for refuse disposal system (dehumidifying, dry, carbonization etc.) is provided.
House refuse is through the physical and chemical process such as dry, dry distilling, oxidation (pre-burning), reduction (gasification), and all combustiblerefuses are all converted to combustible gas.The bottom of pyrolysis and combustion device is combustor, and the combustible gas after melting down fully burns herein, and temperature reaches 1300 DEG C.The results showed, rubbish is gasified totally in a reduction state, and fully burns through high temperature, can effectively control the formation of two English class toxicity.
Screw slag removing storehouse 8 is connected with oxidoreduction storehouse 7, discharges storehouse outside in the slag charge produced can enter screw slag removing storehouse 8 and by screw slag removing device after pyrolytic gasification.Automatic ash-removing slag device is configured in the bottom of combustor.Screw slag removing storehouse bottom the slag charge entrance produced after refuse pyrolysis gasification, slag charge can be shifted onto the side of warehouse by the longitudinal spiral deslagging device in warehouse, the slag charge slag notch from middle part is discharged storehouse by the two groups of horizontal screw slag removing devices arranged by left and right again, carries out next step classified use.
As it is shown in figure 1, this garbage disposal complete set of equipments also includes recirculated water cooling heat-exchange system, recirculated water cooling heat-exchange system is connected with a thermal source reclaiming system 20 by a cooling water pipeline 22, and this cooling water pipe is through thermal decomposition gasification combustion system 1；Cooling water is heated by the gas that this recirculated water cooling heat-exchange system can utilize thermal decomposition gasification combustion system 1 conveying to come.Specifically, recirculated water cooling heat-exchange system includes air-introduced machine 9, water pump 10 and several heat exchangers, and one of them heat exchanger is connected with thermal source reclaiming system 20 through drying garbage storehouse 6 by a cooling water pipeline 22；Water pump 10 is connected with each heat exchanger by cooling water pipeline 22.Heat exchanger is respectively a heat exchanger 11 and No. two heat exchangers 12 and No. three heat exchangers 16, a number heat exchanger 11 is connected with thermal source reclaiming system 20 through drying garbage storehouse 6 by a cooling water pipeline 22, one end of No. two heat exchangers 12 is connected with a heat exchanger 11 by a cooling water pipeline 22, and the other end of No. two heat exchangers is connected with No. three heat exchangers 16 by cooling water pipeline 22.Equipment also includes a knockout tower 13 and No. two knockout towers 14, and the two ends of a knockout tower 13 are connected with oxidoreduction storehouse 7 and a heat exchanger 11 by gas pipeline 21 respectively；No. two knockout towers 14 are connected with No. three heat exchangers 16 by gas pipeline 21, and No. two heat exchangers 12 are connected with a heat exchanger 11 also by a gas pipeline 21.The major function of recirculated water cooling heat-exchange system is that the heat produced during pyrolytic gasification is recycled in processing system provide newly to enter the preheating of rubbish, dry required heat energy again, and the heat energy that system is had more than needed then is made hot water and used as secondary recovery.In pyrolytic gasification storehouse, the high-temperature gas of generation, tar etc. enter knockout tower and heat exchanger under the power that air-introduced machine provides, heat exchange cooling is carried out with the cooling water of opposite direction circulation, cooling water temperature after heat exchange raises, and enters thermal decomposition gasification combustion system and is dried and again heats.
As shown in Figure 1, this garbage disposal complete set of equipments also includes slag charge categorizing system 3, slag charge categorizing system 3 is connected with thermal decomposition gasification combustion system 1 by a haul pipeline, slag charge can be delivered in slag charge categorizing system 3 by thermal decomposition gasification combustion system 1 by haul pipeline, and slag charge categorizing system 3 can carry out multiclass classification by slag charge.
As shown in Figure 1, this garbage disposal complete set of equipments also includes flue gas secondary combustion system 4, flue gas secondary combustion system 4 one end is connected with recirculated water cooling heat-exchange system by a gas pipeline 21, flue gas secondary combustion system 4 other end is connected with thermal decomposition gasification combustion system 1 by a gas pipeline 21, the fuel gas formed after recirculated water cooling heat-exchange system separates can be entered in flue gas secondary combustion system 4 by gas pipeline 21, and mix with air and reentered in thermal decomposition gasification combustion system 1 to carry out second-time burning by gas pipeline 21.Specifically, flue gas secondary combustion system 4 includes aerator 15, air-introduced machine 9 two ends are connected with No. three heat exchangers 16 and No. two knockout towers 14 by gas pipeline 21 respectively, one end of aerator 15 is connected with No. two knockout towers 14 by gas pipeline 21, and the other end is connected with oxidoreduction storehouse 7 by gas pipeline 21.Flue gas secondary combustion system 4 also includes that three grades of exhaust gas treating devices 17, three grades of exhaust gas treating devices 17 are connected with No. two knockout towers 14 by gas pipeline 21, and are provided with exhaust port 18 on these three grades of exhaust gas treating devices 17.Air inlet oxygenation pipeline 19 it is provided with on gas pipeline 21 between aerator 15 and No. two knockout towers 14.Water pump 10 is connected with No. two knockout towers 14 and No. three heat exchangers 12, heat exchanger 11 of 16, No. two heat exchangers and thermal source reclaiming system 20 is together in series by some cooling water pipelines 22.In pyrolytic gasification storehouse, the high-temperature gas of generation, tar etc. enter knockout tower and heat exchanger under the power that air-introduced machine provides, heat exchange cooling is carried out with the cooling water of opposite direction circulation, water, oil, gas are automatically separated, realize water, the purification of waste gas, burnt oil recovery, avoid producing secondary pollution, recycle heat energy simultaneously and rubbish is dried.Tar after cooling enters airtight tar pool；After the remaining fuel gas with uniform temperature mixes with air, under the dynamic action of aerator, returning thermal decomposition gasification combustion system and burn through secondary burner in systems, the heat energy that burning produces carries out dry distilling to rubbish.
nullThe operation principle of the present invention is as follows: rubbish is entered in drying garbage storehouse 6 by garbage feeding storehouse 5，Dried rubbish is pyrolyzed in entering oxidoreduction storehouse 7，A part is formed residue and enters screw slag removing storehouse 8 and drained by slag charge categorizing system 3，Another part forms high-temperature gas entering in a knockout tower 13 and separates，And sequentially pass through No. three heat exchangers by gas pipeline 21、No. two heat exchangers 12、A number heat exchanger 11、In flue-gas treater 16 and No. two knockout towers 14，The fuel gas being finally separating out flows back to oxidoreduction storehouse 7 by gas pipeline 21 and carries out second-time burning，In this process，Water pump 10 is connected with No. two knockout towers 14 and by some cooling water pipelines 22 by flue-gas treater 16、No. two heat exchangers 12、A number heat exchanger 11 and thermal source reclaiming system 20 are together in series，High Temperature Gas cognition carries out certain heating to the cooling water in gas pipeline 21，The hot water being positioned at drying garbage storehouse both can be used as cooling，Can be used for again being dried，Finally can also flow to thermal source reclaiming system 20 be used，Improve the economic benefit of this garbage disposal complete set of equipments.
Specific embodiment described herein is only to present invention spirit explanation for example.Described specific embodiment can be made various amendment or supplements or use similar mode to substitute by those skilled in the art, but without departing from the spirit of the present invention or surmount scope defined in appended claims.
Claims (6)
1. the recirculated water cooling heat-exchange system in a garbage disposal complete set of equipments, described equipment includes: thermal decomposition gasification combustion system, recirculated water cooling heat-exchange system and thermal source reclaiming system, and the gas that described pyrolysis gasification system can be formed after being gasified by refuse pyrolysis is delivered in recirculated water cooling heat-exchange system by gas pipeline；It is characterized in that, described recirculated water cooling heat-exchange system includes air-introduced machine, water pump and several heat exchangers, described air-introduced machine one end is connected with described thermal decomposition gasification combustion system by gas pipeline, and the described air-introduced machine other end is connected with a wherein heat exchanger by gas pipeline and this heat exchanger is connected with described thermal source reclaiming system through described drying garbage storehouse also by a cooling water pipeline；Described water pump is connected with each heat exchanger by cooling water pipeline.
Recirculated water cooling heat-exchange system in a kind of garbage disposal complete set of equipments the most according to claim 1, it is characterized in that, described thermal decomposition gasification combustion system includes along the garbage feeding storehouse that short transverse sets gradually from top to bottom, drying garbage storehouse, rubbish dry distilling storehouse, oxidoreduction storehouse and screw slag removing storehouse；The upper end in described garbage feeding storehouse is provided with electric cabin door, and described drying garbage storehouse is connected with described garbage feeding storehouse, and the rubbish in feeding warehouse can be fallen in drying garbage storehouse under gravity；Described oxidoreduction storehouse is connected with described drying garbage storehouse, rubbish in drying garbage storehouse can be fallen in rubbish dry distilling storehouse under gravity, rubbish dry distilling storehouse can carry out carbonization to the combustible in rubbish, rubbish after rubbish dry distilling storehouse processes can enter in oxidoreduction storehouse, is provided with burner in described oxidoreduction storehouse；Described screw slag removing storehouse is connected with described oxidoreduction storehouse, discharges storehouse outside in the slag charge produced can enter screw slag removing storehouse and by screw slag removing device after pyrolytic gasification.
Recirculated water cooling heat-exchange system in a kind of garbage disposal complete set of equipments the most according to claim 2, it is characterized in that, described heat exchanger is respectively a heat exchanger, No. two heat exchangers and No. three heat exchangers, a described heat exchanger is connected with described thermal source reclaiming system through described drying garbage storehouse by a cooling water pipeline, one end of described No. two heat exchangers is connected with a described heat exchanger by a cooling water pipeline, the other end of described No. two heat exchangers is connected by cooling water pipeline and No. two heat exchangers, one end of described No. three heat exchangers is connected by cooling water pipeline and No. two heat exchangers.
Recirculated water cooling heat-exchange system in a kind of garbage disposal complete set of equipments the most according to claim 3, it is characterized in that, described equipment also includes a knockout tower and No. two knockout towers, and the two ends of a described knockout tower are connected with described oxidoreduction storehouse and a heat exchanger by gas pipeline respectively；Described No. two knockout towers are connected with described No. three heat exchangers by gas pipeline, and described No. two heat exchangers are connected also by a gas pipeline and a heat exchanger.
Recirculated water cooling heat-exchange system in a kind of garbage disposal complete set of equipments the most according to claim 4, it is characterized in that, described air-introduced machine two ends are connected with described No. three heat exchangers and No. two knockout towers by gas pipeline respectively, described equipment also includes aerator, one end of described aerator is connected with described No. two knockout towers by gas pipeline, and the other end is connected with described oxidoreduction storehouse by gas pipeline.
Recirculated water cooling heat-exchange system in a kind of garbage disposal complete set of equipments the most according to claim 5, it is characterized in that, described water pump is connected with described No. two knockout towers and described No. three heat exchangers, No. two heat exchangers, a heat exchanger and thermal source reclaiming system is together in series by some cooling water pipelines.
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| CN107477602B (en) * | 2017-08-25 | 2023-09-05 | 湖南省环境保护科学研究院(湖南省无公害生态经济研究所) | Small household garbage pyrolysis gasification flue gas waste heat cascade utilization system |
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