CN106765142B - Solid waste grading gasification system - Google Patents
Solid waste grading gasification system Download PDFInfo
- Publication number
- CN106765142B CN106765142B CN201611170423.3A CN201611170423A CN106765142B CN 106765142 B CN106765142 B CN 106765142B CN 201611170423 A CN201611170423 A CN 201611170423A CN 106765142 B CN106765142 B CN 106765142B
- Authority
- CN
- China
- Prior art keywords
- gasification
- temperature
- furnace
- gas
- zone
- Prior art date
- 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.)
- Active
Links
- 238000002309 gasification Methods 0.000 title claims abstract description 140
- 239000002910 solid waste Substances 0.000 title claims abstract description 27
- 238000001035 drying Methods 0.000 claims abstract description 43
- 238000002407 reforming Methods 0.000 claims abstract description 41
- 238000011084 recovery Methods 0.000 claims abstract description 30
- 238000005406 washing Methods 0.000 claims abstract description 26
- 238000000746 purification Methods 0.000 claims abstract description 23
- 238000010248 power generation Methods 0.000 claims abstract description 16
- 238000007872 degassing Methods 0.000 claims abstract description 8
- 239000007789 gas Substances 0.000 claims description 114
- 239000002893 slag Substances 0.000 claims description 70
- 238000007599 discharging Methods 0.000 claims description 37
- 238000000197 pyrolysis Methods 0.000 claims description 35
- 238000002485 combustion reaction Methods 0.000 claims description 30
- 238000001816 cooling Methods 0.000 claims description 29
- 239000007787 solid Substances 0.000 claims description 21
- 239000002245 particle Substances 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 19
- 238000009826 distribution Methods 0.000 claims description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 14
- 238000003860 storage Methods 0.000 claims description 13
- 238000005336 cracking Methods 0.000 claims description 12
- 239000002737 fuel gas Substances 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 7
- 238000004062 sedimentation Methods 0.000 claims description 6
- 239000000779 smoke Substances 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 8
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 2
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 abstract 1
- 239000010813 municipal solid waste Substances 0.000 description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 18
- 239000002699 waste material Substances 0.000 description 16
- 238000000034 method Methods 0.000 description 15
- KVGZZAHHUNAVKZ-UHFFFAOYSA-N 1,4-Dioxin Chemical compound O1C=COC=C1 KVGZZAHHUNAVKZ-UHFFFAOYSA-N 0.000 description 14
- 239000002956 ash Substances 0.000 description 13
- 230000008569 process Effects 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 9
- 230000015572 biosynthetic process Effects 0.000 description 9
- 238000003786 synthesis reaction Methods 0.000 description 9
- 229910001868 water Inorganic materials 0.000 description 9
- 239000000126 substance Substances 0.000 description 8
- 239000003546 flue gas Substances 0.000 description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 230000005484 gravity Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000012298 atmosphere Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 238000009272 plasma gasification Methods 0.000 description 4
- 239000011343 solid material Substances 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000009270 solid waste treatment Methods 0.000 description 3
- 231100000331 toxic Toxicity 0.000 description 3
- 230000002588 toxic effect Effects 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 150000002013 dioxins Chemical class 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000010881 fly ash Substances 0.000 description 2
- 229910003480 inorganic solid Inorganic materials 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- HXELDDLUAGVKCK-UHFFFAOYSA-N [N]=O.[S] Chemical class [N]=O.[S] HXELDDLUAGVKCK-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000010882 bottom ash Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000007233 catalytic pyrolysis Methods 0.000 description 1
- 230000005465 channeling Effects 0.000 description 1
- 239000000149 chemical water pollutant Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002906 medical waste Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004227 thermal cracking Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000010920 waste tyre Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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
- F23G5/027—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage
- F23G5/0276—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage using direct heating
-
- 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
- F23G5/44—Details; Accessories
- F23G5/442—Waste feed arrangements
- F23G5/444—Waste feed arrangements for solid waste
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L1/00—Passages or apertures for delivering primary air for combustion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L9/00—Passages or apertures for delivering secondary air for completing combustion of fuel
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/12—Heat utilisation in combustion or incineration of waste
Abstract
The invention discloses a solid waste grading gasification system which is formed by connecting a feeding system, a self-flowing moving bed gasification furnace, a high-temperature plasma torch, a high-temperature reforming purification furnace, a primary fan, a secondary fan I, a secondary fan II, a clean gas induced draft fan, a heat recovery system, a gas washing tower, a washing drying tower, a degassing tower, a first demister, a second demister, a third demister and a gas power generation and heat supply system. The heat exchange system arranged at the tail part of the plasma-assisted high-temperature reforming purification furnace recovers as much heat required by the reaction of the moving bed gasification furnace as possible, improves the comprehensive utilization efficiency of energy, and avoids secondary pollution or blockage caused by dioxin, gasified tar, heavy metal and the like. The system has the characteristics of wide raw material adaptability, high gasification efficiency, no pollution, simple installation and maintenance, easy popularization and the like.
Description
Technical Field
The invention relates to the field of thermochemical treatment of solid wastes, in particular to a system for reforming and purifying high-volatile solid wastes such as municipal solid wastes, crop straws, waste tires, waste plastics, medical wastes, dangerous wastes and the like, and preparing clean fuel gas by taking air, water vapor or a mixture of the air and the water vapor as a gasifying agent and using the clean fuel gas for generating power and supplying heat.
Background
Along with the rapid increase of Chinese economy and the continuous improvement of urban level, the production of solid wastes, especially urban household garbage, is rapidly increased, and the dilemma of garbage surrounding cities is caused in various places. Although the sanitation landfill and garbage incineration technology relieves the current situation of the surrounding city of the household garbage to a certain extent, the adoption of the sanitation landfill not only occupies a large amount of precious land resources and wastes the energy of the garbage, but also can form a long-term pollution threat to water, atmosphere and soil; although the incineration method can realize the reduction, harmless and recycling of garbage disposal. But is provided withThe combustion flue gas released during the incineration treatment often contains hydrogen chloride (HCl), sulfur nitrogen oxides (SO) x ，NO x ) And dioxins (PCDDs/PCDFs) toxic and harmful substances, and solid ash, especially fly ash, contains a large amount of heavy metals and dioxins, and if the solid ash is improperly treated, secondary pollution is easily caused. Meanwhile, in order to ensure that organic matters contained in the garbage are fully combusted, the excessive air can cause the load of downstream flue gas purification to be increased, and the manufacturing and running cost of equipment is increased.
The waste gasification technology is called third generation solid waste treatment technology. At the beginning of nineties, law, united states, english, german, swiss, japan and sweden have participated in the development of this technology and began to be popularized and applied in developed countries in the middle and late nineties. The (air) gasification process refers to the process of preparing combustible gas by performing thermochemical reaction on waste at high temperature under the condition of anaerobic or anoxic condition. The air quantity required by the system is smaller than the quantity required by complete combustion, so that the gas quantity generated by the system is far lower than the incineration process, and the system is more beneficial to energy conservation and environmental protection. As a brand new waste treatment method, the gasification technology has the greatest advantage of overcoming the defect that Dioxin (Dioxin) is generated by an incineration method. Currently, the most advanced incineration facilities in the world have a dioxin emission standard of about 0.1nmg/m3, while the pyrolysis gasification technology has reached a dioxin emission standard of 0.01nmg/m3.
Most of the prior gasification processes for treating solid wastes adopt one-stage gasification plus water washing or catalytic gas purification technology, and the defects of high content of tar, dioxin and other substances, difficult removal, particularly complex process and the like are generally present. The water washing process is easy to produce secondary water pollution, and is difficult to thoroughly remove harmful substances contained in the gas; harmful substances such as dioxin, tar and the like are subjected to metal catalytic pyrolysis, so that the catalyst is difficult to popularize and apply in industrial practice due to the defects of short service life, high cost of catalyst materials, complex process route and the like. In regard to the type of reactor used in gasification technology, fixed bed (including rotary kiln, mechanical grate furnace), fluidized bed or plasma furnace is dominant, chinese patent CN103267293 (application number: 201310197237.9) discloses a waste gasification furnace with a special structure, which uses mechanical grate with complex structure to control and adjust the residence time and residence time distribution of solid materials in the furnace. The reliability of the gasification furnace is difficult to ensure under the environmental conditions of high temperature and corrosive atmosphere, and the operation and maintenance cost is increased. Fluidized bed gasification is difficult to simultaneously adapt to materials such as household garbage which are not pretreated by sorting and the like, have high moisture content, irregular shape, complex and changeable raw material components and are easy to melt or agglomerate. In recent years, the high-temperature plasma gasification technology has universal raw material adaptability, can rapidly treat solid wastes such as municipal solid waste on a large scale, and has been widely developed in the solid waste treatment industry at home and abroad. However, direct plasma gasification requires a high-power plasma torch (plasma torch) with a power consumption rate as high as 30% to 40% of its power generation. Chinese patent CN103013568 (application No. 201210539110.6) discloses a treatment system for solid waste by plasma gasification, which adopts a plasma spray gun in both gasification furnace and synthesis gas purification device. Related experimental and research work is still in the conceptual demonstration and technical demonstration stage. Chinese patent CN104976622 (application number 201510471085.6) discloses a rotary kiln gasification and plasma fusion household garbage classification gasification system. In the technology, although a primary plasma torch with huge power consumption is abandoned, solid residues generated by all primary rotary kilns are required to be sent into a subsequent plasma reaction furnace for gasification and melting, the reliability of equipment is still difficult to effectively improve, and the energy consumption is also not effectively reduced.
Disclosure of Invention
Based on the problems in the prior art, the invention provides a solid waste grading gasification system, which can reform and purify high-volatile solid waste, takes air, water vapor or a mixture thereof as a gasifying agent to prepare clean fuel gas and use the clean fuel gas for generating power and supplying heat, improves the comprehensive utilization efficiency of energy, and avoids secondary pollution or blockage caused by dioxin, gasified tar, heavy metal and the like.
In order to solve the technical problems, the present invention provides a solid waste staged gasification system, comprising:
the device comprises a feeding system, a self-flowing moving bed gasifier, a high-temperature plasma torch, a high-temperature reforming purifying furnace, a primary fan, a secondary fan I, a secondary fan II, a clean gas induced draft fan, a heat recovery system, a gas washing tower, a washing drying tower, a degassing tower, a first demister, a second demister, a third demister and a gas power generation and heat supply system; wherein,
the discharge port of the feeding system is connected with the feed port of the self-flowing moving bed gasification furnace;
the high-temperature section multi-group heat exchangers of the heat recovery system are arranged in the high-temperature reforming and purifying furnace, and the low-temperature Duan Duozu heat exchanger of the heat recovery system is arranged outside the high-temperature reforming and purifying furnace;
the self-flow moving bed gasification furnace is provided with a slag discharging port, a pyrolysis gas outlet, a wet gas outlet, a first primary air inlet, a second primary air inlet and a secondary air inlet, wherein the pyrolysis gas outlet is connected with the high-temperature reforming purification furnace, the wet gas outlet is connected with the washing and drying tower, and the washing and drying tower is respectively connected with the first primary air inlet and the second primary air inlet of the self-flow moving bed gasification furnace through the third demister, the second secondary air machine and the low-temperature Duan Duozu heat exchanger of the heat recovery system in sequence;
the deaeration tower is provided with a primary air inlet and an air outlet, the air outlet is connected with the primary air blower and the secondary air blower through a second demister, the primary air blower is connected with the secondary air inlet of the self-flow moving bed gasification furnace through a plurality of groups of heat exchangers in a high-temperature section of the heat recovery system, and the secondary air blower is connected with the high-temperature reforming purification furnace through a plurality of groups of heat exchangers in a high-temperature section of the heat recovery system;
the high-temperature reforming purifying furnace is provided with a slag hole and a clean gas outlet, and the clean gas outlet is connected with the gas power generation and heat supply system through a low-temperature Duan Duozu heat exchanger, a gas washing tower, a first demister and a clean gas induced draft fan of the heat recovery system.
The beneficial effects of the invention are as follows:
(1) According to the grading gasification system, the self-flowing moving bed gasification furnace is matched with the high-temperature plasma torch and the high-temperature reforming purification furnace, so that a grading gasification mode combining the gasification furnace and the high-temperature plasma assisted high-temperature reforming purification is formed, the gas load is remarkably reduced, and the treatment cost of gasified synthetic gas is effectively reduced; the high-temperature gas generated in the high-temperature reforming and purifying furnace provides partial heat energy for the drying and pyrolysis gasification stages of the self-flow moving bed gasification furnace, and simultaneously preheats primary air at the bottom of the self-flow moving bed gasification furnace and supplementary air in the reforming and purifying furnace, so that most of sensible heat in the synthesis gas after gasification of the waste is recovered; the clean gas (synthetic gas) after cooling is subjected to subsequent cascade utilization through a gas power generation or heat supply system. The system improves the energy conversion efficiency of the system by classifying gasification and cascade utilization of gas heat generated in the gasification process of wastes such as garbage.
(2) The solid waste, especially urban domestic garbage, generates a large amount of reducing gases such as carbon monoxide, hydrogen and the like in the self-flowing moving bed gasifier, can effectively inhibit the oxidation of metal components (such as copper, iron and zinc) in the waste, reduces the gas phase migration of the metals, and is used as the active center of a catalyst to lead to the synthesis of dioxin. In the high-temperature flue gas purification stage, dioxin, gasified tar and the like are thoroughly removed. Particles such as solid fly ash are melted by the high temperature of plasma, and metal ions or particles are fixed in vitrified residue particles. The system has no liquid discharge and no secondary pollution of water.
(3) In the high-temperature reforming purifying furnace, the formation of high-temperature atmosphere not only comes from the electric energy consumed by the high-temperature plasma torch, but also generates a great deal of combustible components (including macromolecular tar, carbon residue particles, synthesis gas and the like) to undergo a violent oxidation reaction under the action of oxygen, and a great deal of heat energy is discharged. Therefore, compared with other plasma gasification processes, the high-temperature plasma torch has relatively low power consumption, can effectively reduce the operation cost of the gasification process, and simultaneously reduces the construction and maintenance cost of the system.
(4) The staged gasification system of the invention uses air, water vapor or the mixture thereof as gasifying agent, does not need a complex oxygen generating system, and can greatly reduce investment and small-scale production. The unit equipment is easy to manufacture and assemble, has low requirement on pretreatment of wastes, can treat materials such as unsorted household garbage, has relatively small occupied area, generates synthesis gas which does not contain toxic and harmful substances such as tar, dioxin, heavy metals and the like, can be used for various potential purposes, and can be used as fuel gas, power generation, external heat supply or hydrogen production, chemical synthesis and the like.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a solid waste staged gasification system according to an embodiment of the present invention;
FIG. 2 is a schematic view of a part of a gravity-fed moving bed gasifier according to an embodiment of the present invention;
FIG. 3 is a schematic view of a plasma torch and a high temperature gas cleaning furnace according to an embodiment of the present invention;
in the figure: f1-solid waste, F2-plasma gas (or air), F3-primary air, 1-solid material storage area, 2-gasifier, 2A-drying area, 2B-pyrolysis gasification area, 2C-carbon residue combustion area, 2D-ash cooling pond, 3-spiral slag extractor, 4-plasma torch, 5-high temperature reforming purification furnace, 6-heat recovery system, 7-gas scrubber, 8-first demister for removing foam, 9-degassing tower, 10-second demister for removing foam, 11-second fan, 12-primary fan, 13-second fan, 14-washing drying tower, 15-third demister for removing foam, 16-synthetic gas induced draft fan, 17-gas power generation and heat supply system, 18-flue gas discharge system, 19-first pushing device, 20-second pushing device, 21-cooling slag extractor, 22-high temperature gas purification furnace inner baffle plate, out 1-gasification furnace bottom ash, out 2-high temperature slag, out 3-gas exhaust.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
As shown in fig. 1, an embodiment of the present invention provides a staged gasification system for solid waste treatment to achieve staged gasification, the system including:
the device comprises a feeding system, a self-flowing moving bed gasifier, a high-temperature plasma torch, a high-temperature reforming purifying furnace, a primary fan, a secondary fan I, a secondary fan II, a clean gas induced draft fan, a heat recovery system, a gas washing tower, a washing drying tower, a degassing tower, a first demister, a second demister, a third demister and a gas power generation and heat supply system; wherein,
the discharge port of the feeding system is connected with the feed port of the self-flowing moving bed gasifier;
the high-temperature section multi-group heat exchangers of the heat recovery system are arranged in the high-temperature reforming and purifying furnace, and the low-temperature Duan Duozu heat exchanger of the heat recovery system is arranged outside the high-temperature reforming and purifying furnace;
the self-flow moving bed gasification furnace is provided with a slag discharging port, a pyrolysis gas outlet, a wet gas outlet, a first primary air inlet, a second primary air inlet and a secondary air inlet, wherein the pyrolysis gas outlet is connected with the high-temperature reforming purification furnace, the wet gas outlet is connected with a washing and drying tower, and the washing and drying tower is respectively connected with the first primary air inlet and the second primary air inlet of the self-flow moving bed gasification furnace through a third demister, a secondary air blower and a low-temperature Duan Duozu heat exchanger of a heat recovery system in sequence;
the deaeration tower is provided with a primary air inlet and an air outlet, the air outlet is connected with a primary fan and a secondary fan I through a second demister, the primary fan is connected with a secondary air inlet of the self-flow moving bed gasification furnace through a plurality of groups of heat exchangers in a high temperature section of the heat recovery system, and the secondary fan is connected with a high temperature reforming purification furnace through a plurality of groups of heat exchangers in a high temperature section of the heat recovery system;
the high-temperature reforming purifying furnace is provided with a slag hole and a clean gas outlet, and the clean gas outlet is connected to a gas power generation and heat supply system through a low-temperature Duan Duozu heat exchanger of the heat recovery system, a gas washing tower, a first demister and a clean gas induced draft fan.
In the above-mentioned staged gasification system, as shown in fig. 2, the self-flowing moving bed gasification furnace comprises:
the furnace body is of a two-dimensional moving bed structure with an inclined angle, and a storage area, a drying area, a pyrolysis gasification area, a carbon residue combustion area and a slag cooling pond which are sequentially communicated and arranged in a step shape are arranged in the furnace body from top to bottom, and a self-flowing material channel is formed among the storage area, the drying area, the pyrolysis gasification area, the carbon residue combustion area and the slag cooling pond;
the material storage area is provided with a material inlet;
a first pushing device is arranged between the material storage area and the drying area; a second pushing device is arranged between the drying area and the pyrolysis gasification area;
a first primary air inlet is formed in the furnace body corresponding to the drying area, a first air distribution chamber is arranged in the drying area in the first primary air inlet, and a first baffle plate is arranged in the first air distribution chamber;
the drying area is provided with a wet gas outlet corresponding to the upper furnace body;
a second primary air inlet is formed in the furnace body corresponding to the pyrolysis gasification zone, a second air distribution chamber is arranged in the pyrolysis gasification zone in the second primary air inlet, and a second refraction plate is arranged in the second air distribution chamber;
the pyrolysis gasification zone is provided with a pyrolysis gas outlet corresponding to the upper furnace body;
a secondary air inlet is arranged on the furnace body corresponding to the carbon residue combustion zone, a third air distribution chamber is arranged in the carbon residue combustion zone in the secondary air inlet, and a third deflector is arranged in the second air distribution chamber;
the bottom of the slag cooling pool is provided with a slag discharging port, a cooling slag discharging mechanism is arranged below the slag discharging port, and the cooling slag discharging mechanism consists of a cooling slag discharging device and a spiral slag discharging machine arranged below the cooling slag discharging device.
Specifically, the self-flowing moving bed gasifier is a two-dimensional moving bed with a special inclination angle, solid materials flow through a drying area, a pyrolysis gasification area, a carbon residue combustion area and a slag cooling area respectively under the action of self gravity and air flow pushing, ash residues in a high-temperature molten state are continuously cooled by a water cooling coil, finally fall into an ash residue pond through a solid slag extractor to be further cooled, and part of cooling water is instantaneously vaporized to become water vapor to flow back into the gasifier. And finally discharging the cooled solid ash slag from the gasification furnace through a spiral slag extractor. Wherein the storage area stores waste (or garbage) materials conveyed by a shaftless screw conveyor or a grab bucket machine. A first pushing device is arranged between the material storage area and the drying area. The materials in the drying area are heated, dried and dehydrated by circulating high-temperature drying gas, so that the moisture is reduced, and the heat value is increased. A second pushing device is arranged between the drying area and the pyrolysis gasification area. The bottom of the pyrolysis gasification zone is provided with a gas distribution structure which is obliquely downwards, and the circulated high-temperature gas provides heat for the zone on one hand and also has the function of timely removing gas (including gaseous tar) separated out in the pyrolysis gasification stage on the other hand; thirdly, the circulated high-temperature gas can also play a role in continuously stirring and enhancing heat and mass transfer; fourth, the circulated high temperature gas can also strengthen the downward movement of solid materials in the gasification furnace.
The operation temperature of the drying area in the self-flowing moving bed gasification furnace is 200-300 ℃ and the optimal operation temperature is about 250 ℃; the operation temperature of the pyrolysis gasification zone is 800-900 ℃, and the optimal operation temperature is about 850 ℃; the operating temperature range of the combustion zone is 1200-1400 ℃, and the optimal operating temperature is about 1300 ℃;
the self-flowing moving bed gasifier does not comprise a plurality of moving parts like a common mechanical grate, and only comprises two pushing devices and a slag discharging device at the bottom of the gasifier, thereby improving the reliability and stability of the system.
In the grading gasification system, a slag discharging port of the slag cooling pool is provided with a solid slag discharging device; the cooling slag discharging device adopts a spiral slag discharging device and is used for discharging the vitreous slag and sealing the bottom of the gasification furnace.
In the grading gasification system, the operation temperature range of a drying zone of the self-flowing moving bed gasification furnace is 200-300 ℃, the operation temperature range of a pyrolysis gasification zone is 800-900 ℃, and the operation temperature range of a carbon residue combustion zone is 1200-1400 ℃.
In the grading gasification system, the feeding system consists of a travelling crane grab, a plate feeder, a belt conveyor and a shaftless screw conveyor.
In the above-mentioned staged gasification system, as shown in fig. 3, the high temperature reforming purification furnace comprises:
the furnace body is internally provided with a gas mixing zone, a cracking gasification combustion zone and a solid particle sedimentation zone which are sequentially communicated;
the gas mixing zone is arranged in parallel with the cracking gasification combustion zone, the cracking gasification combustion zone is provided with a clean gas outlet, the solid particle settling zone is arranged below the cracking gasification combustion zone, and the bottom of the solid particle settling zone is provided with a slag hole; for discharging the vitreous ash and sealing the bottom of the gasification furnace
The gas mixing zone is connected with the high-temperature plasma torch;
a plurality of groups of heat exchangers of a high-temperature section of the heat recovery system are arranged in the cracking gasification combustion zone;
the solid particle sedimentation area is provided with a baffle plate, and the slag discharging port is provided with a slag discharging device.
The grading gasification system has the main functions of cracking macromolecular tar into micromolecular gas, thoroughly decomposing toxic and harmful substances such as dioxin, and further gasifying carbon residues (boot) or primary carbon-containing particles separated out at high temperature under the action of gasifying agents such as water vapor, oxygen or carbon dioxide. The high temperature plasma generated by the plasma torch (plasma torch) and the high temperature secondary air are burnt vigorously and incompletely in the area together with the crude synthetic gas from the gasification furnace, so as to form high temperature gas (about 1200-1400 ℃) with uniform temperature distribution. And meanwhile, the inorganic solid particles adsorb heavy metals, and melt and agglomerate to form vitrified inert particles. The air flow sectional area in the sedimentation chamber area is continuously increased, the speed of the air is reduced, and large particles are removed after sedimentation under the action of gravity and a baffle plate.
In the above-mentioned staged gasification system, the heat recovery system comprises: a high temperature section multi-group heat exchanger and a low temperature Duan Duozu heat exchanger; wherein,
the high-temperature section multi-group heat exchangers are respectively connected with the primary air blower and the secondary air blower, and can heat primary air added into the self-flow moving bed gasification furnace and secondary air entering the high-temperature reforming purification furnace to 700 ℃;
the low-temperature Duan Duozu heat exchanger is connected with a clean fuel gas outlet of the high-temperature reforming and purifying furnace, and can heat the output synthetic gas to 300 ℃.
In the above-mentioned hierarchical gasification system, the gas power generation heating system is at least one of medium and low calorific value gas motor, steam turbine, gas boiler or combined cycle generator set.
The above-mentioned staged gasification system further comprises: and the smoke exhaust system is connected with a smoke outlet of the gas power generation and heat supply system.
Aiming at the defects and shortcomings of the existing solid waste, particularly urban household garbage plasma classified gasification technology, the classified gasification system provides a gasification treatment system combining self-flow moving bed gasification and plasma auxiliary high-temperature reforming purification, wherein air, water vapor or a mixture thereof is used as a gasifying agent, and heat required by the reaction of the moving bed gasification furnace is recovered as much as possible through a heat exchange system arranged at the tail part of the plasma auxiliary high-temperature reforming purification furnace, so that the comprehensive utilization efficiency of energy is improved, and the secondary pollution or blockage problem caused by dioxin, gasified tar, heavy metal and the like is avoided
The gas washing tower and the degassing tower in the grading gasification system comprise a washing water circulating pump, a sprayer, a demister and a tower body. The method is mainly used for reducing the temperature of the gas, removing acid gas and particulate matters in the gas and reducing the moisture content (moisture) in the gas. The inlet gas temperature of the scrubber is about 200 ℃ and the inlet gas temperature of the degasser is within 100 ℃. The washing water treatment system comprises a dosing pump, a dosing tank, a buffer tank, a neutralization tank and other devices, and is mainly used for treating washing water and landfill leachate of a washing tower and a degassing tower.
The primary air blower, the secondary air blower, the synthetic gas induced draft fan and the dry gas blower in the grading gasification system are used for overcoming resistance encountered in the gas flowing process. Each unit equipment from the gravity-fed moving bed gasifier to the front of the syngas induced draft fan operates at sub-atmospheric pressure (negative or slightly negative pressure).
The invention will be further described with reference to specific examples
As shown in fig. 1 to 3, the present embodiment provides a staged gasification system for self-flowing moving bed gasification and plasma-assisted high temperature flue gas reforming purification, wherein solid waste (household garbage) F1 is first fed into the inlet of a gasification furnace by a feeder or a grab, and then uniformly stored in the storage area 1 of the gasification furnace 2 by a shaftless screw conveyor. The material in the material storage area 1 is pushed to the drying area 2A by the pushing device. The drying gas (secondary air) is uniformly fed into the drying zone 2A through an air distribution inclined plate below the drying zone 2A, so that the materials are dried, the moisture in the materials is reduced, and the heat value of the materials is improved.
The garbage in the drying zone 2A is pushed to the pyrolysis gasification zone 2B by a pushing device. The secondary air enters the pyrolysis gasification zone 2B from the bottom of the pyrolysis gasification zone 2B through an air distribution plate. Volatile matters in the solid waste undergo thermal cracking and severe gasification reactions involving gasifying agents such as high-temperature oxygen, water vapor and the like, and a part of combustible gas (including small molecular substances such as carbon monoxide, hydrogen and the like) undergoes combustion reaction to provide heat for the gasification reaction. The pyrolysis or gasification carbonaceous residues which do not get reacted enter the combustion zone 2C and are closely contacted with high-temperature air (namely primary air), a great amount of heat energy is released by the combustion reaction, a high-temperature layer is formed, if the conditions are properly controlled, the solid ash can be melted, the temperature is greatly reduced after the solid ash flows into (or falls into) the cooling slag extractor 21, and the ash discharged through the slag extractor falls into. The slag discharging baffle plate at the bottom of the gasification furnace performs slag discharging through periodical movement. The slag extractor continuously discharges the glassy ash and slag, forms a liquid seal on the bottom of the gasifier, prevents air from entering the ash and slag tank 2D for further cooling, and part of cooling water is instantaneously vaporized to become water vapor to flow back into the gasifier. The cooled solid ash Out1 is discharged Out of the gasification furnace through a cooling slag discharging mechanism. The cooling slag discharging mechanism consists of a cooling slag discharging device 21 and a spiral slag discharging machine 3 arranged below the cooling slag discharging device 21, wherein the cooling slag discharging device 21 cools the waste slag which is originally in a liquid state, rapidly transfers the waste slag to the bottom of the gasification furnace, prevents gas from channeling in the transferring process, and the spiral slag discharging machine 3 drags the waste slag out of a slag pool at the bottom of the gasification furnace and discharges the waste slag out of the gasification furnace.
The raw synthesis gas generated by the gasification furnace 2 enters a high-temperature reforming and purifying furnace 5. The reforming and purifying furnace 5 comprises a gas mixing area, a cracking and gasifying combustion area and a solid particle settling area, and the high-temperature plasma generated by the plasma torch 4 and the high-temperature secondary air and the crude synthetic gas from the gasification furnace 2 are reacted in the area through violent incomplete combustion, gasification, reforming, steam transformation and the like. Dioxin and tar are completely destroyed to become clean and clean micromolecular substances (such as carbon monoxide, hydrogen, carbon dioxide or water molecules and the like), and meanwhile, inorganic solid particles adsorb heavy metals to melt and agglomerate to form vitrified inert particles. In the settling chamber zone, the gas velocity is reduced, large particles are removed after settling under the action of gravity and a baffle plate 22, and the solid slag Out2 is discharged from the reforming and purifying furnace 5 through a slag extractor.
The secondary air blower 11, the primary air blower 12 and the secondary air blower 13 respectively lead the air (primary air blower) at room temperature and the wet gas led out from the upper drying area 2A of the gasification furnace to the heat recovery system 6 through the degassing tower 9, the demister 10, the washing drying tower 14 and the demister 15, wherein the air led out from the secondary air blower 11 and the primary air blower 12 is led into the high-temperature heat exchange section of the heat recovery system 6 to heat the air to about 700 ℃, and the air led out from the secondary air blower 13 respectively heats the secondary air in the drying area 2A of the gasification furnace and the secondary air in the pyrolysis gasification area 2B of the gasification furnace to about 300 ℃ through the low-temperature heat exchange section of the heat recovery system 6.
The temperature of the synthesis gas leaving the high temperature flue gas cleaning furnace 5 entering the scrubber 7 is about 200 c. The synthesis gas is further cooled in a scrubber 7 and entrained with the remaining fines, the acid gases contained (HCl, CO2, etc.) are removed.
The purified synthetic gas or fuel gas is sent into a fuel gas power generation and heat supply system 17 for utilization through a draught fan 16, and finally the tail gas Out3 is discharged Out of a boundary region or is scattered into the atmosphere through a flue gas discharge system 18.
The staged gasification system of the invention recovers heat required by the reaction of the moving bed gasification furnace as much as possible through the heat exchange system arranged at the tail part of the plasma-assisted high-temperature reforming purification furnace, improves the comprehensive utilization efficiency of energy, and avoids secondary pollution or blockage caused by dioxin, gasified tar, heavy metal and the like. The system has the characteristics of wide raw material adaptability, high gasification efficiency, no pollution, simple installation and maintenance, easy popularization and the like.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present invention should be included in the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.
Claims (9)
1. A staged gasification system for solid waste, comprising:
the device comprises a feeding system, a self-flowing moving bed gasifier, a high-temperature plasma torch, a high-temperature reforming purifying furnace, a primary fan, a secondary fan I, a secondary fan II, a clean gas induced draft fan, a heat recovery system, a gas washing tower, a washing drying tower, a degassing tower, a first demister, a second demister, a third demister and a gas power generation and heat supply system; wherein,
the discharge port of the feeding system is connected with the feed port of the self-flowing moving bed gasification furnace;
the high-temperature section multi-group heat exchangers of the heat recovery system are arranged in the high-temperature reforming and purifying furnace, and the low-temperature Duan Duozu heat exchanger of the heat recovery system is arranged outside the high-temperature reforming and purifying furnace;
the self-flow moving bed gasification furnace is provided with a slag discharging port, a pyrolysis gas outlet, a wet gas outlet, a first primary air inlet, a second primary air inlet and a secondary air inlet, wherein the pyrolysis gas outlet is connected with the high-temperature reforming purification furnace, the wet gas outlet is connected with the washing and drying tower, and the washing and drying tower is respectively connected with the first primary air inlet and the second primary air inlet of the self-flow moving bed gasification furnace through the third demister, the second secondary air machine and the low-temperature Duan Duozu heat exchanger of the heat recovery system in sequence;
the self-flowing moving bed gasification furnace comprises:
the furnace body is of a two-dimensional moving bed structure with an inclined angle, and a storage area, a drying area, a pyrolysis gasification area, a carbon residue combustion area and a slag cooling pond which are sequentially communicated and arranged in a step shape are arranged in the furnace body from top to bottom, and a self-flowing material channel is formed among the storage area, the drying area, the pyrolysis gasification area, the carbon residue combustion area and the slag cooling pond;
the material storage area is provided with a material inlet;
a first pushing device is arranged between the material storage area and the drying area; a second pushing device is arranged between the drying area and the pyrolysis gasification area;
the furnace body corresponding to the drying area is provided with a first primary air inlet, the drying area in the first primary air inlet is provided with a first air distribution chamber, and a first baffle plate is arranged in the first air distribution chamber;
the drying area is provided with the wet gas outlet corresponding to the upper furnace body;
the furnace body corresponding to the pyrolysis gasification zone is provided with a second primary air inlet, the pyrolysis gasification zone in the second primary air inlet is provided with a second air distribution chamber, and a second refraction plate is arranged in the second air distribution chamber;
the pyrolysis gasification zone is provided with a pyrolysis gas outlet corresponding to the upper furnace body;
the secondary air inlet is formed in the furnace body corresponding to the carbon residue combustion zone, a third air distribution chamber is arranged in the carbon residue combustion zone in the secondary air inlet, and a third deflector is arranged in the second air distribution chamber;
a slag discharging port is arranged at the bottom of the slag cooling tank, and a cooling slag discharging system is arranged below the slag discharging port;
the deaeration tower is provided with a primary air inlet and an air outlet, the air outlet is connected with the primary air blower and the secondary air blower through a second demister, the primary air blower is connected with the secondary air inlet of the self-flow moving bed gasification furnace through a plurality of groups of heat exchangers in a high-temperature section of the heat recovery system, and the secondary air blower is connected with the high-temperature reforming purification furnace through a plurality of groups of heat exchangers in a high-temperature section of the heat recovery system;
the high-temperature reforming purifying furnace is provided with a slag hole and a clean gas outlet, and the clean gas outlet is connected with the gas power generation and heat supply system through a low-temperature Duan Duozu heat exchanger, a gas washing tower, a first demister and a clean gas induced draft fan of the heat recovery system.
2. The classified gasification system of solid waste according to claim 1, wherein the cooling slag discharging system is composed of a cooling slag discharging device and a screw slag extractor provided below the cooling slag discharging device.
3. The staged solid waste gasification system according to claim 1, wherein a slag tap of the slag cooling bath is provided with a solid slag extractor.
4. A staged gasification system for solid waste as claimed in any one of claims 1 to 3, wherein the drying zone of the self-flowing moving bed gasifier is operated at a temperature in the range of 200 ℃ to 300 ℃, the pyrolysis gasification zone is operated at a temperature in the range of 800 ℃ to 900 ℃ and the carbon residue combustion zone is operated at a temperature in the range of 1200 ℃ to 1400 ℃.
5. A staged gasification system for solid waste as claimed in any one of claims 1 to 3, wherein the feeding system consists of a travelling grab, a plate feeder, a belt conveyor and a shaftless screw conveyor.
6. A solid waste staged gasification system as claimed in any one of claims 1 to 3, wherein the high temperature reforming cleaning furnace comprises:
the furnace body is internally provided with a gas mixing zone, a cracking gasification combustion zone and a solid particle sedimentation zone which are sequentially communicated;
the gas mixing zone is arranged in parallel with the cracking gasification combustion zone, the cracking gasification combustion zone is provided with the clean gas outlet, the solid particle settling zone is arranged below the cracking gasification combustion zone, and the bottom of the solid particle settling zone is provided with the slag hole;
the gas mixing zone is connected with the high-temperature plasma torch;
a plurality of groups of heat exchangers in a high temperature section of the heat recovery system are arranged in the cracking gasification combustion zone;
the solid particle sedimentation zone is provided with a baffle plate, and the slag discharging port is provided with a slag discharging device.
7. The staged gasification system of solid waste as claimed in claim 1, wherein the heat recovery system comprises: a high temperature section multi-group heat exchanger and a low temperature Duan Duozu heat exchanger; wherein,
the high-temperature section multi-group heat exchangers are respectively connected with the primary air blower and the secondary air blower, and can heat primary air added into the self-flow moving bed gasification furnace and secondary air entering the high-temperature reforming purification furnace to 700 ℃;
the low-temperature Duan Duozu heat exchanger is connected with a clean fuel gas outlet of the high-temperature reforming and purifying furnace, and can heat the output synthetic gas to 300 ℃.
8. The staged gasification system of solid waste as claimed in claim 1, wherein the gas power generation and heating system is at least one of a medium and low heating value gas motor, a steam turbine, a gas boiler or a combined cycle generator set.
9. The solid waste staged gasification system as claimed in claim 1 or 8, further comprising: and the smoke exhaust system is connected with a smoke outlet of the gas power generation and heat supply system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611170423.3A CN106765142B (en) | 2016-12-16 | 2016-12-16 | Solid waste grading gasification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611170423.3A CN106765142B (en) | 2016-12-16 | 2016-12-16 | Solid waste grading gasification system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106765142A CN106765142A (en) | 2017-05-31 |
| CN106765142B true CN106765142B (en) | 2023-11-28 |
Family
ID=58893273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611170423.3A Active CN106765142B (en) | 2016-12-16 | 2016-12-16 | Solid waste grading gasification system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106765142B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915839A (en) * | 2019-03-21 | 2019-06-21 | 武汉华麟科技有限公司 | A kind of vertical danger waste treatment equipment |
| CN110176322A (en) * | 2019-05-13 | 2019-08-27 | 江苏天楹环保能源成套设备有限公司 | A kind of middle low-activity solid waste volume reduction processing system and its method |
| CN111853801A (en) * | 2020-07-28 | 2020-10-30 | 山东百川同创能源有限公司 | Garbage pyrolysis gasification incineration system and technology |
| CN112377915A (en) * | 2020-10-21 | 2021-02-19 | 南京德仓生态技术有限公司 | Organic waste gasification treatment system and method |
| CN113172079A (en) * | 2021-05-08 | 2021-07-27 | 南开大学 | Urban and rural organic solid waste rapid heat treatment device and application |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002013713A (en) * | 2000-04-05 | 2002-01-18 | Sumitomo Heavy Ind Ltd | Gasifying system of waste |
| WO2002021047A1 (en) * | 2000-09-05 | 2002-03-14 | Kawasaki Jukogyo Kabushiki Kaisha | Waste-gasified fusion furnace and method of operating the fusion furnace |
| CN102226527A (en) * | 2005-06-29 | 2011-10-26 | 先进等离子动力有限公司 | Waste treatment process and apparatus |
| CN102997246A (en) * | 2011-09-14 | 2013-03-27 | 邢献军 | Garbage high-temperature incinerator |
| CN204084386U (en) * | 2014-01-21 | 2015-01-07 | 无锡高尔环保科技有限公司 | A kind of garbage combustion device |
| CN105737162A (en) * | 2014-12-09 | 2016-07-06 | 中国科学院上海高等研究院 | Household garbage low-temperature pyrolysis system and method based on process decoupling and scrubbing combustion |
| CN206514306U (en) * | 2016-12-16 | 2017-09-22 | 启迪桑德环境资源股份有限公司 | Solid waste classification gasification system |
-
2016
- 2016-12-16 CN CN201611170423.3A patent/CN106765142B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002013713A (en) * | 2000-04-05 | 2002-01-18 | Sumitomo Heavy Ind Ltd | Gasifying system of waste |
| WO2002021047A1 (en) * | 2000-09-05 | 2002-03-14 | Kawasaki Jukogyo Kabushiki Kaisha | Waste-gasified fusion furnace and method of operating the fusion furnace |
| CN102226527A (en) * | 2005-06-29 | 2011-10-26 | 先进等离子动力有限公司 | Waste treatment process and apparatus |
| CN102997246A (en) * | 2011-09-14 | 2013-03-27 | 邢献军 | Garbage high-temperature incinerator |
| CN204084386U (en) * | 2014-01-21 | 2015-01-07 | 无锡高尔环保科技有限公司 | A kind of garbage combustion device |
| CN105737162A (en) * | 2014-12-09 | 2016-07-06 | 中国科学院上海高等研究院 | Household garbage low-temperature pyrolysis system and method based on process decoupling and scrubbing combustion |
| CN206514306U (en) * | 2016-12-16 | 2017-09-22 | 启迪桑德环境资源股份有限公司 | Solid waste classification gasification system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106765142A (en) | 2017-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106765142B (en) | Solid waste grading gasification system | |
| CN108097703B (en) | Plasma gasification melting system for centralized treatment of solid wastes | |
| US9410095B2 (en) | Method of gasification of biomass using gasification island | |
| CN203791331U (en) | System for synergistic treatment of municipal domestic waste in cement kiln | |
| CN108775585B (en) | Waste high-temperature air/steam gasification combustion melting system | |
| CN103934254B (en) | A kind of system and method for cement kiln associated treatment domestic waste | |
| JP3723061B2 (en) | Complete resource recycling method for waste without chimney using oxygen-enriched gas | |
| WO2011113298A1 (en) | Gasification-liquefaction disposal method, system and equipment for household garbage | |
| CN106524175B (en) | Castoff fusing curing process system and method | |
| CN106244242B (en) | Novel medical waste plasma gasification treatment system | |
| CN105066135A (en) | Small garbage catalytic gasification pyrolysis technology method and equipment thereof | |
| CN112111302B (en) | Low-order material gasification combustion and flue gas pollutant control integrated process and device and application | |
| CN106524176B (en) | Waste gasification melt-combustion system | |
| CN112161273A (en) | Household garbage harmless treatment device and method | |
| CN111637464A (en) | Organic hazardous waste and inorganic hazardous waste cooperative comprehensive utilization power generation system and process | |
| CN201748434U (en) | Rubbish burning processing device | |
| WO2019069107A1 (en) | Apparatus and method for producing synthesis gas | |
| CN106642138B (en) | waste gasification melting furnace | |
| CN210176803U (en) | Solid waste gasification melting system | |
| CN108426250A (en) | A kind of domestic garbage gasification melting electricity generation system | |
| CN206514306U (en) | Solid waste classification gasification system | |
| CN110699124A (en) | Method and system for organic solid waste gasification melting harmless treatment | |
| CN113751471B (en) | Multi-fuel coupled system and method for online melting treatment of hazardous waste incineration fly ash | |
| CN212581819U (en) | Coal gasification slag plasma gasification cogeneration system | |
| JP3707754B2 (en) | Waste treatment system and method and cement produced thereby |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: No. 114 along the River Road, Yichang, Hubei, Hubei Applicant after: Tus Environmental Technology Development Co.,Ltd. Address before: No. 114 Yanjiang Avenue, Hubei, Yichang Applicant before: SOUND ENVIRONMENTAL RESOURCES Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |