CN104907311A - Method and device for garbage processing water recovery and pure carbon production - Google Patents
Method and device for garbage processing water recovery and pure carbon production Download PDFInfo
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- CN104907311A CN104907311A CN201510247724.0A CN201510247724A CN104907311A CN 104907311 A CN104907311 A CN 104907311A CN 201510247724 A CN201510247724 A CN 201510247724A CN 104907311 A CN104907311 A CN 104907311A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/20—Waste processing or separation
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Abstract
The invention relates to a method and a device for garbage processing water recovery and pure carbon production. The device for garbage processing water recovery and pure carbon production comprises a garbage collection station, a garbage stacking site separator, a pulverizer, a calcium oxide dehydration purification tower, a dividing wall rotary kiln, a tar recoverer, a chemical plant, a waste heat power generation device, a condensed water recoverer, a water reclamation tank, a high temperature deliming device and a grading processing device. Garbage is separated into renewable garbage and non-renewable garbage by the separator, the renewable garbage is pulverized by the pulverizer, the pulverized garbage is sent to the dividing wall rotary kiln, low-temperature destructive distillation is carried out, carbide coke powder after destructive distillation is sent to the high temperature deliming device, and deliming is carried out. Destructive distillation tail gas is subjected to water vapor absorption by the calcium oxide dehydration purification tower, the tail gas after dehydration is sent to the chemical plant through the tar recoverer and processing is carried out. After the destructive distillation tail gas is subjected to deoiling, the product returns to a kiln chamber of the dividing wall rotary kiln, the burnt flue gas enters into the waste heat power generation device and waste heat power generation is carried out. After deliming of the high temperature deliming device, coke powder with an ash amount of less than 0.02% and byproducts of a high boiling point metal and lower boiling point metal mixture are generated.
Description
Technical field
The invention belongs to garbage disposal and recovery and utilization technology field, relate to a kind of partition destructive distillation, technique that tail gas condensing reclaims moisture and high temperature removal coke powder ash content, be specifically related to the method and apparatus that a kind of garbage disposal is reclaimed moisture and produced pure carbon.
Background technology
The solid waste that rubbish is mankind's daily life and produces in producing, because discharge rate is large, complicated component is various, brings difficulty to disposal and utilization, as do not processed in time or deal with improperly, just pollutes the environment, affects environmental sanitation.China has exceeded the municipal solid wastes producer that the U.S. becomes maximum in the world, and increasing sharply of solid waste makes environmental carrying capacity approach the limit.
Treatment of urban garbage has the effect of the discharge of decreasing pollution thing, energy regeneration, minimizing greenhouse gases, applying more waste disposal method is sanitary landfills, During High-Temperature Composting and burning, often kind of a method has pluses and minuses, but all can not realize the object of innoxious, resource and minimizing completely.
Summary of the invention
The object of this invention is to provide a kind of method that garbage disposal is reclaimed moisture and produced pure carbon, harmless treatment is carried out to rubbish, utilize waste incineration production high-quality high-purity carbon, reclaim the moisture in rubbish and by-product metal, with the discharge of decreasing pollution thing and the effect of greenhouse gases, realize the recycling of rubbish.Another object of the present invention is to provide the device that a kind of garbage disposal is reclaimed moisture and produced pure carbon.
Technical scheme of the present invention is: garbage disposal is reclaimed moisture and produced the method for pure carbon, rubbish is collected through refuse collection station, by transporting tool carrier to place where the garage is piled up, renewable rubbish and non-renewable rubbish is sub-elected through sorter, cement building material raw material made by the non-renewable rubbish separated, and the renewable rubbish separated is pulverized through pulverizer.The rear rubbish of pulverizing enters partition rotary kiln and carries out low temperature distillation, and the carbide coke powder after destructive distillation enters high temperature deliming device deliming.Gas from dry distillation tail enters the water vapour in calcium oxide dewatered clean tower absorption tail gas, and the tail gas after dehydration enters tar recover, and the tar of recovery enters chemical plant processing, and the steam that calcium oxide dewatered clean tower is deviate from enters water recovery tank.The kiln thorax that after de-oiling, gas from dry distillation tail returns partition rotary kiln makes fuel, the rubbish in indirect material space, and the flue gas after burning enters device for generating power by waste heat and carries out cogeneration.Flue gas after generating enters condensate recovering device, and the moisture that condensation is reclaimed enters water recovery tank.After high temperature deliming device deliming, coke powder production ash quantity is lower than the height of 0.02%, the mixture of by-product higher boiling metal and low boiling metal, high-purity charcoal delivers to pure charcoal feed bin, low boiling metal delivers to low boiling metal recovery device, and higher boiling metal delivers to higher boiling metal recovery device.
During the temperature of low temperature distillation 400 ~ 1200 DEG C, the carbide coke powder dust burdening after described destructive distillation is 2 ~ 20%.High temperature deliming equipment is heated to 1600 ~ 3000 DEG C carbide coke powder, and the oxide such as calcium, magnesium, aluminium, iron, silicon in carbide coke powder ash content is reduced by charcoal, and steam raising condensation is collected; The high-purity charcoal produced is as the raw material of purifying metals or reducing agent.Calcium oxide dewatered clean tower is double tower in parallel, the steam that tower absorbs in tail gas at 100 ~ 500 DEG C generates calcium hydroxide, calcium hydroxide is heated to 500 ~ 1200 DEG C of regeneration and generates calcium oxide by another tower, calcium hydroxide decomposes the moisture produced and enters water recovery tank, and double tower hockets and absorbs water and dehydration.Calcium oxide is while absorption steam, and the chloride in tail gas and calcium oxide react and generate calcium chloride.The decomposition temperature of calcium chloride is 1600 DEG C, cannot decompose, be accumulated in calcium oxide dewatered clean tower, change calcium oxide through certain hour during calcium hydroxide regeneration.
Garbage disposal of the present invention is reclaimed moisture and is produced the device of pure carbon, and comprise refuse collection station and place where the garage is piled up, refuse collection station is connected with place where the garage is piled up by means of transport.Device is provided with sorter, pulverizer, calcium oxide dewatered clean tower, partition rotary kiln, tar recover, chemical plant, device for generating power by waste heat, condensate recovering device, water recovery tank, high temperature deliming equipment and classification treatment facility.Place where the garage is piled up is connected to the charging aperture of partition rotary kiln successively by sorter, pulverizer.Partition rotary kiln is provided with solids exit mouth, offgas outlet and exhanst gas outlet, and solids exit mouth is connected to high temperature deliming equipment, and offgas outlet is connected to tar recover by calcium oxide dewatered clean tower, and the water out of calcium oxide dewatered clean tower is connected to water recovery tank.Exhanst gas outlet is connected to device for generating power by waste heat, and device for generating power by waste heat is connected to water recovery tank by condensate recovering device.Tar recover is provided with tar outlet and the outlet of de-oiling gas from dry distillation tail, and tar outlet is connected to chemical plant, and the outlet of de-oiling gas from dry distillation tail is connected to the burner of partition rotary kiln.High temperature deliming equipment connection is to classification treatment facility.
Classification treatment facility comprises low boiling metal recovery device, higher boiling metal recovery device and pure charcoal feed bin, and high temperature deliming equipment is connected respectively to low boiling metal recovery device, higher boiling metal recovery device and pure charcoal feed bin.Sorter is gravity classifier, vibration sorting device or magnetic separator.The urceolus of partition rotary kiln is carbon steel structure, and inner core is formed by refractory material laying.Inner core center is combustion space, leave material channel, or inner core center is material channel in the middle of refractory material, is combustion space in the middle of refractory material.
Sorter is vibrated bed sorter, and rubbish is in the flowing of vibrated bed surface thereof, and the building waste stone that proportion is larger and cement block etc. sink to the bottom, and the biomass garbage that proportion is less floats, and is separated by gravity.Or before entering next process and pulverizing, increase magnetic plant and the metal garbage not obtaining fully being separated is separated further, ensure stable use and the life-span of pulverizer.The urceolus of partition rotary kiln is carbon steel structure, and inner core is formed by refractory material laying.Inner core center is combustion space, leaves material channel in the middle of refractory material, and the heat of fuel combustion, by the good refractory material of heat conductivility, is delivered to the rubbish in interlayer, and rubbish is heated destructive distillation.
Harmful rubbish, by processes such as the collection to rubbish, sorting, pulverizing, destructive distillation, calcium oxide dehydration and high temperature delimings, is become available resource by the process that garbage disposal of the present invention is reclaimed moisture and produced pure carbon.Renewable rubbish and non-renewable rubbish are effectively isolated in sorting, and non-renewable rubbish is used as cement building material raw material.Renewable rubbish is through chopping, dry and retort process, reclaim the moisture in rubbish, by rubbish destructive distillation coke, tar and combustible gas, be used as industrial chemicals through separating tar, combustible gas is used as the fuel of partition rotary kiln, coke separates high-purity carbon product and by-product metal after high temperature deliming device processes, effectively make use of renewable resource, decrease pollutant and greenhouse gas emission, turn waste into wealth, not only can increase economic efficiency, to society, there is positive effect simultaneously.The garbage disposal of the present invention device that reclaims moisture and produce pure carbon reclaims moisture and produces pure carbon provide equipment guarantee for realizing garbage disposal.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of garbage disposal recovery moisture and the device producing pure carbon;
Wherein: 1-refuse collection station, 2-place where the garage is piled up, 3-sorter, 4-pulverizer, 5-partition rotary kiln, 6-calcium oxide dewatered clean tower, 7-tar recover, 8-chemical plant, 9-device for generating power by waste heat, 10-condensate recovering device, 11-water recovery tank, 12-high temperature deliming device, 13-low boiling metal recovery device, 14-higher boiling metal recovery device, 15-pure charcoal feed bin.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is described in detail.Scope is not limited to embodiment, and those skilled in the art make any change and also belong to the scope of protection of the invention in the scope that claim limits.
The device that garbage disposal of the present invention is reclaimed moisture and produced pure carbon as shown in Figure 1, comprises refuse collection station 1, place where the garage is piled up 2, sorter 3, pulverizer 4, calcium oxide dewatered clean tower 6, partition rotary kiln 5, tar recover 7, chemical plant 8, device for generating power by waste heat 9, condensate recovering device 10, water recovery tank 11, high temperature deliming equipment 12, low boiling metal recovery device 13, higher boiling metal recovery device 14 and pure charcoal feed bin 15.Place where the garage is piled up is connected to the charging aperture of partition rotary kiln successively by sorter, pulverizer.Partition rotary kiln is provided with solids exit mouth, offgas outlet and exhanst gas outlet, and solids exit mouth is connected to high temperature deliming equipment, and offgas outlet is connected to tar recover by calcium oxide dewatered clean tower, and the water out of calcium oxide dewatered clean tower is connected to water recovery tank.Exhanst gas outlet is connected to device for generating power by waste heat, and device for generating power by waste heat is connected to water recovery tank by condensate recovering device.Tar recover is provided with tar outlet and the outlet of de-oiling gas from dry distillation tail, and tar outlet is connected to chemical plant, and the outlet of de-oiling gas from dry distillation tail is connected to the burner of partition rotary kiln.High temperature deliming equipment is connected respectively to low boiling metal recovery device, higher boiling metal recovery device and pure charcoal feed bin.
The process that garbage disposal of the present invention is reclaimed moisture and produced pure carbon is: townm refuse is collected through refuse collection station 1, be stored in place where the garage is piled up 2, through sorter 3 sorting, building waste stone, cement block or old metal are wherein separated with other biomass garbage, rubbish after separation enters pulverizer 4 and pulverizes, carry out destructive distillation in the material space that rubbish after pulverizing enters partition rotary kiln 5, the temperature of destructive distillation is 600 DEG C, and the carbide coke powder dust burdening after destructive distillation is 5%.Carbide coke powder after destructive distillation enters high temperature deliming device 12.The tail gas produced enters calcium oxide dewatered clean tower 6, calcium oxide is by the water vapor absorption in tail gas, tail gas after dehydration enters tar recover 7, and the tar reclaimed enters chemical plant 8 and processes, and the steam that calcium oxide dewatered clean tower is deviate from enters water recovery tank 11.Return the kiln thorax burning of partition rotary kiln 5 after gas from dry distillation tail de-oiling, the rubbish in indirect material space, the waste heat that the flue gas after burning enters device for generating power by waste heat 9 recovered flue gas generates electricity.Flue gas after generating enters condensate recovering device 10, and the moisture that condensation is reclaimed enters water recovery tank 11.Coke powder after destructive distillation enters high temperature deliming device 12 deliming, produces high-purity charcoal, dust burdening lower than 0.02%, simultaneously by-product higher boiling metal and low boiling metal.
Sorter 3 is vibrated bed sorter, and rubbish is in the flowing of vibrated bed surface thereof, and the building waste stone that proportion is larger and cement block sink to the bottom, and the biomass garbage that proportion is less floats, and is separated by gravity.Or before entering next process and pulverizing, increase magnetic plant and the metal garbage not obtaining fully being separated is separated further, ensure stable use and the life-span of pulverizer.The urceolus of partition rotary kiln 5 is carbon steel structure, and inner core is formed by refractory material laying, and inner core center is combustion space, material channel is left in the middle of refractory material, the heat of fuel combustion, by the good refractory material of heat conductivility, is delivered to the rubbish in interlayer, and rubbish is heated destructive distillation.
Calcium oxide dewatered clean tower 6 is double tower in parallel, the steam that tower absorbs in tail gas at 400 DEG C generates calcium hydroxide, calcium hydroxide is heated to 600 DEG C of regeneration and generates calcium oxide by another tower, calcium hydroxide decomposes the moisture produced and enters water recovery tank, and double tower hockets and absorbs water and dehydration.Calcium oxide is while absorption steam, and the chloride in tail gas and calcium oxide react and generate calcium chloride.The decomposition temperature of calcium chloride is 1600 DEG C, cannot decompose, be accumulated in calcium oxide dewatered clean tower, change calcium oxide through setting-up time during calcium hydroxide regeneration.Device for generating power by waste heat 9 utilizes the water generation steam in the waste-heat waste heat boiler of flue gas, and steam drives gas-turbine, and gas-turbine drive electrical generators generates electricity, or high-temperature flue gas enters flue gas turbine expander acting generating.High temperature deliming device is heated to 2800 DEG C coke powder, and the oxides such as the calcium in coke powder ash content, magnesium, aluminium, iron, silicon are reduced by charcoal, and steam raising condensation is collected.Production content of ashes is less than 0.02% high-purity charcoal and enters pure charcoal feed bin 15, by-product higher boiling (aluminium, silicon etc.) metal sends into higher boiling metal recovery device 14, low boiling (calcium, magnesium, iron etc.) metal sends into low boiling metal recovery device 13, and higher boiling metal and low boiling metal are as the raw material of purifying metals and reducing agent.
Claims (8)
1. a garbage disposal is reclaimed moisture and is produced the method for pure carbon, rubbish collects (1) through refuse collection station, by transporting tool carrier to place where the garage is piled up (2), renewable rubbish and non-renewable rubbish is sub-elected through sorter (3), cement building material raw material made by the non-renewable rubbish separated, the renewable rubbish separated is pulverized through pulverizer (4), it is characterized in that: the rear rubbish of pulverizing enters partition rotary kiln (5) and carries out low temperature distillation, and the carbide coke powder after destructive distillation enters high temperature deliming device (12) deliming; Gas from dry distillation tail enters the water vapour in calcium oxide dewatered clean tower (6) absorption tail gas, tail gas after dehydration enters tar recover (7), the tar reclaimed enters chemical plant (8) processing, and the steam that calcium oxide dewatered clean tower is deviate from enters water recovery tank (11); The kiln thorax that after de-oiling, gas from dry distillation tail returns partition rotary kiln makes fuel, the rubbish in indirect material space, and the flue gas after burning enters device for generating power by waste heat (9) and carries out cogeneration; Flue gas after generating enters condensate recovering device (10), and the moisture that condensation is reclaimed enters water recovery tank; After described high temperature deliming device deliming, coke powder production ash quantity is lower than the height of 0.02%, the mixture of by-product higher boiling metal and low boiling metal, high-purity charcoal delivers to pure charcoal feed bin (15), low boiling metal delivers to low boiling metal recovery device (13), and higher boiling metal delivers to higher boiling metal recovery device (14).
2. garbage disposal is reclaimed moisture and is produced the method for pure carbon according to claim 1, it is characterized in that: during the temperature of described low temperature distillation 400 ~ 1200 DEG C, and the carbide coke powder dust burdening after described destructive distillation is 2 ~ 20%.
3. garbage disposal is reclaimed moisture and is produced the method for pure carbon according to claim 1, it is characterized in that: described high temperature deliming equipment (12) is heated to 1600 ~ 3000 DEG C carbide coke powder, the oxide such as calcium, magnesium, aluminium, iron, silicon in carbide coke powder ash content is reduced by charcoal, and steam raising condensation is collected; Produce content of ashes and be less than 0.02% high-purity charcoal, by-product higher boiling (aluminium, silicon etc.) metal and low boiling (calcium, magnesium, iron etc.) metal, high-purity carbon is as the raw material of purifying metals and reducing agent.
4. garbage disposal is reclaimed moisture and is produced the method for pure carbon according to claim 1, it is characterized in that: described calcium oxide dewatered clean tower (6) is double tower in parallel, the steam that tower absorbs in tail gas at 100 ~ 500 DEG C generates calcium hydroxide, calcium hydroxide is heated to 500 ~ 1200 DEG C of regeneration and generates calcium oxide by another tower, calcium hydroxide decomposes the moisture produced and enters water recovery tank, and double tower hockets and absorbs water and dehydration; Calcium oxide is while absorption steam, and the chloride in tail gas and calcium oxide react and generate calcium chloride; The decomposition temperature of calcium chloride is 1600 DEG C, cannot decompose, be accumulated in calcium oxide dewatered clean tower, change calcium oxide through certain hour during calcium hydroxide regeneration.
5. a garbage disposal is reclaimed moisture and is produced the device of pure carbon, comprise refuse collection station (1) and place where the garage is piled up (2), described refuse collection station is connected with place where the garage is piled up by means of transport, it is characterized in that: described device is provided with sorter (3), pulverizer (4), calcium oxide dewatered clean tower (6), partition rotary kiln (5), tar recover (7), chemical plant (8), device for generating power by waste heat (9), condensate recovering device (10), water recovery tank (11), high temperature deliming equipment (12) and classification treatment facility, described place where the garage is piled up passes through sorter successively, pulverizer is connected to the charging aperture of partition rotary kiln, described partition rotary kiln is provided with solids exit mouth, offgas outlet and exhanst gas outlet, described solids exit mouth is connected to high temperature deliming equipment, described offgas outlet is connected to tar recover by calcium oxide dewatered clean tower, and the water out of calcium oxide dewatered clean tower is connected to water recovery tank, described exhanst gas outlet is connected to device for generating power by waste heat, and device for generating power by waste heat is connected to water recovery tank by condensate recovering device, described tar recover is provided with tar outlet and the outlet of de-oiling gas from dry distillation tail, and described tar outlet is connected to chemical plant, and described de-oiling gas from dry distillation tail outlet is connected to the burner of partition rotary kiln, described high temperature deliming equipment connection is to classification treatment facility.
6. the device of pure charcoal is produced in garbage disposal according to claim 5, it is characterized in that: described classification treatment facility comprises low boiling metal recovery device (13), higher boiling metal recovery device (14) and pure charcoal feed bin (15), described high temperature deliming equipment (8) is connected respectively to low boiling metal recovery device, higher boiling metal recovery device and pure charcoal feed bin.
7. the device of pure charcoal is produced in garbage disposal according to claim 5, it is characterized in that: described sorter is gravity classifier, vibration sorting device or magnetic separator.
8. the device of pure charcoal is produced in garbage disposal according to claim 5, it is characterized in that: the urceolus of described partition rotary kiln (5) is carbon steel structure, and inner core is formed by refractory material laying; Inner core center is combustion space, leave material channel, or inner core center is material channel in the middle of refractory material, is combustion space in the middle of refractory material.
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| CN106077025A (en) * | 2016-06-16 | 2016-11-09 | 北京神雾环境能源科技集团股份有限公司 | Process the system and method for house refuse |
| CN106077023A (en) * | 2016-06-16 | 2016-11-09 | 北京神雾环境能源科技集团股份有限公司 | Process the system and method for house refuse |
| CN106077024A (en) * | 2016-06-16 | 2016-11-09 | 北京神雾环境能源科技集团股份有限公司 | Process the system and method for house refuse |
| CN106077026A (en) * | 2016-06-16 | 2016-11-09 | 北京神雾环境能源科技集团股份有限公司 | Process the system and method for house refuse |
| CN106077027A (en) * | 2016-06-16 | 2016-11-09 | 北京神雾环境能源科技集团股份有限公司 | Process the system and method for house refuse |
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| CN105903753A (en) * | 2016-06-16 | 2016-08-31 | 北京神雾环境能源科技集团股份有限公司 | Household garbage treatment system and method |
| TWI600475B (en) * | 2016-07-15 | 2017-10-01 | Gui-Tian Fan | An organic waste treatment equipment |
| JP2021010881A (en) * | 2019-07-08 | 2021-02-04 | 株式会社フジタ | System for producing adsorbent, and method for producing adsorbent |
| JP7262330B2 (en) | 2019-07-08 | 2023-04-21 | 株式会社フジタ | Systems for producing adsorbents and methods of producing adsorbents |
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