CN109628150B - Environment-friendly energy-saving recycling treatment system for oil sludge circulating fluidized bed - Google Patents
Environment-friendly energy-saving recycling treatment system for oil sludge circulating fluidized bed Download PDFInfo
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- CN109628150B CN109628150B CN201910077923.XA CN201910077923A CN109628150B CN 109628150 B CN109628150 B CN 109628150B CN 201910077923 A CN201910077923 A CN 201910077923A CN 109628150 B CN109628150 B CN 109628150B
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- 239000010802 sludge Substances 0.000 title claims abstract description 122
- 238000011282 treatment Methods 0.000 title claims abstract description 31
- 238000004064 recycling Methods 0.000 title claims abstract description 16
- 238000002309 gasification Methods 0.000 claims abstract description 94
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 86
- 239000003546 flue gas Substances 0.000 claims abstract description 86
- 239000007787 solid Substances 0.000 claims abstract description 49
- 239000002918 waste heat Substances 0.000 claims abstract description 44
- 239000007789 gas Substances 0.000 claims abstract description 34
- 238000002485 combustion reaction Methods 0.000 claims abstract description 24
- 239000000428 dust Substances 0.000 claims abstract description 21
- 238000005406 washing Methods 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 39
- 239000000463 material Substances 0.000 claims description 36
- 238000003860 storage Methods 0.000 claims description 25
- 239000003795 chemical substances by application Substances 0.000 claims description 22
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 21
- 238000000889 atomisation Methods 0.000 claims description 19
- 239000012495 reaction gas Substances 0.000 claims description 14
- 238000009826 distribution Methods 0.000 claims description 12
- 239000011229 interlayer Substances 0.000 claims description 11
- 238000005507 spraying Methods 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 238000005243 fluidization Methods 0.000 claims description 6
- 238000000746 purification Methods 0.000 claims description 6
- 238000007086 side reaction Methods 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 6
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 5
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 5
- 235000011116 calcium hydroxide Nutrition 0.000 claims description 5
- 239000000920 calcium hydroxide Substances 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 3
- 239000004071 soot Substances 0.000 claims description 3
- 239000003921 oil Substances 0.000 abstract description 70
- 238000000926 separation method Methods 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 abstract description 5
- 239000000446 fuel Substances 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 3
- 238000009833 condensation Methods 0.000 abstract description 2
- 230000005494 condensation Effects 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 abstract description 2
- 230000018044 dehydration Effects 0.000 abstract 1
- 238000006297 dehydration reaction Methods 0.000 abstract 1
- 239000000295 fuel oil Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 description 12
- 229910021529 ammonia Inorganic materials 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 239000010779 crude oil Substances 0.000 description 8
- 238000009331 sowing Methods 0.000 description 8
- 230000007613 environmental effect Effects 0.000 description 7
- 238000005979 thermal decomposition reaction Methods 0.000 description 5
- 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 description 4
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 4
- 239000003513 alkali Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000003635 deoxygenating effect Effects 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
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- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- BBEAQIROQSPTKN-UHFFFAOYSA-N pyrene Chemical compound C1=CC=C2C=CC3=CC=CC4=CC=C1C2=C43 BBEAQIROQSPTKN-UHFFFAOYSA-N 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 208000005623 Carcinogenesis Diseases 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 208000031320 Teratogenesis Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 230000008859 change Effects 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005315 distribution function Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- GVEPBJHOBDJJJI-UHFFFAOYSA-N fluoranthrene Natural products C1=CC(C2=CC=CC=C22)=C3C2=CC=CC3=C1 GVEPBJHOBDJJJI-UHFFFAOYSA-N 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
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- 238000005504 petroleum refining Methods 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
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- 238000005086 pumping Methods 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 150000005837 radical ions Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
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- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
- C10J3/50—Fuel charging devices
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/82—Gas withdrawal means
- C10J3/84—Gas withdrawal means with means for removing dust or tar from the gas
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/86—Other features combined with waste-heat boilers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/001—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals for sludges or waste products from water treatment installations
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2200/00—Details of gasification apparatus
- C10J2200/15—Details of feeding means
- C10J2200/158—Screws
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/0946—Waste, e.g. MSW, tires, glass, tar sand, peat, paper, lignite, oil shale
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/12—Heating the gasifier
- C10J2300/1207—Heating the gasifier using pyrolysis gas as fuel
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/1625—Integration of gasification processes with another plant or parts within the plant with solids treatment
- C10J2300/1628—Ash post-treatment
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/1687—Integration of gasification processes with another plant or parts within the plant with steam generation
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/18—Details of the gasification process, e.g. loops, autothermal operation
- C10J2300/1861—Heat exchange between at least two process streams
- C10J2300/1892—Heat exchange between at least two process streams with one stream being water/steam
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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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses an environment-friendly energy-saving recycling treatment system of an oil sludge circulating fluidized bed, which relates to the fields of environment protection, energy saving and waste recycling, and achieves the aims of harmless, reduction and recycling after treatment of the oil sludge, and liquid fuel oil and combustible gas are recovered and are merged into a user pipe network. The system mainly comprises a circulating fluidized bed incinerator, a two-stage gas-solid cyclone separator, a flue gas secondary combustion chamber, a steam superheating furnace, an air preheater, a waste heat boiler evaporator, a waste heat boiler economizer, a flue gas mixer, a bag-type dust remover, a deacidification washing tower, an induced draft fan, a chimney, a gasification reactor, a gas-solid separator, a condenser and a gas holder. The high-quality gas fuel and liquid fuel are obtained through oil sludge pretreatment, combustion, gas-solid cyclone separation and condensation dehydration, and the waste heat of the system is recovered for gasification and ash is recovered. The system thoroughly separates the components of the oil sludge, has high resource recycling rate, stable and reliable equipment operation, small occupied area and simple oil sludge treatment flow.
Description
Technical Field
The invention relates to the technical field of environmental protection, energy conservation and waste recycling, in particular to an environmental protection, energy conservation and recycling treatment system of an oil sludge circulating fluidized bed.
Background
The oily sludge mainly refers to oily sludge formed by crude oil and soil due to various reasons, and oily sediment carried out by a system in normal production of an oil field, and the main components of the oily sludge are crude oil, mud and water. The sludge is mainly produced in oil fields and refineries and is divided into three types according to the source classification: floor oil sludge formed in oilfield exploitation production and operation construction, tank bottom sludge generated in natural sedimentation of various storage tanks, and three sludge generated in petroleum refining, namely oil separation tank bottom sludge, floatation tank scum and crude oil tank bottom sludge. Because the oily sludge contains sulfur compounds, benzene compounds, phenols, anthracene, pyrene and other toxic and harmful substances with malodor, and certain hydrocarbon substances contained in crude oil have the functions of carcinogenesis, teratogenesis and mutagenic, the oily sludge of the oil field is listed into dangerous solid wastes by China and is managed according to the dangerous wastes.
The current method for treating the oily sludge at home and abroad generally comprises the following steps: incineration, biological treatment, heat washing, solvent extraction, chemical demulsification, solid-liquid separation, etc. Among the numerous treatments, the thermal decomposition treatment of sludge is one of the more effective methods. The working principle of the thermal decomposition treatment technology is that deep thermal decomposition treatment is carried out on the oil sludge under the high-temperature and anaerobic condition, so that hydrocarbon, colloid, asphaltene and other organic matters in the oil sludge are pyrolyzed or thermally condensed to obtain liquid-phase oil products, gas, coke, dry silt and the like, the liquid-phase oil products and the organic matter gas are recovered by adopting a condensation reflux method, and residual harmful substances in the treated dry silt can be directly discharged under the condition of meeting environmental protection standards. The thermal decomposition treatment technology is divided into a high-temperature decomposition method and a low-temperature treatment method, wherein the working temperature of the high-temperature decomposition method can reach 1400 ℃, and the working temperature of the low-temperature treatment method is about 800 ℃. The thermal decomposition treatment technology has higher technical content, ideal treatment effect and relatively complex operation, and has the defects of higher energy consumption.
For example, the chinese patent application No. 2015101167783 provides a method and apparatus for recycling pyrolysis of oil sludge, which uses thermal instability of constituent materials in the oil sludge to indirectly exchange heat with hot air by a rotary drum dryer and by a fluidized bed distiller, so as to efficiently decompose the oil sludge into solid, liquid and gas phases, and recycle the solid, liquid and gas phases. The device is thorough in treatment of the sludge and high in energy recovery rate, but lacks a necessary deacidifying device and an ash removing device, and the discharged flue gas is difficult to reach the emission standard.
Disclosure of Invention
The invention aims to provide an environment-friendly energy-saving recycling treatment system for an oil sludge circulating fluidized bed, which aims to solve the problems in the background technology.
In order to achieve the above object, the present invention provides the following technical solutions: an environment-friendly energy-saving recycling treatment system of an oil sludge circulating fluidized bed, which mainly comprises the following equipment: the system comprises an oil sludge pretreatment and feeding system, a circulating fluidized bed oil sludge incineration system, an oil sludge fluidization gasification system, an incineration side flue gas waste heat utilization system, an incineration side flue gas environment-friendly treatment system and a gasification side reaction gas purification system. The sludge pretreatment and feeding system is divided into a dry sludge gasification feeding system, a wet sludge feeding system and a dry sludge combustion feeding system; the dry oil sludge gasification feeding system and the dry oil sludge combustion feeding system are connected to the vibrating crusher in front, the vibrating crusher is connected to the dry oil sludge storage tank through the bucket lifting conveyor, the dry oil sludge storage tank is connected to the star-shaped feeder, the spiral feeder is arranged behind the star-shaped feeder and is respectively connected to the circulating fluidized bed incinerator and the gasification reactor, the spiral feeder is obliquely arranged to the hearth near the side of the circulating fluidized bed incinerator and is provided with an oil sludge combustion material sowing wind interface, the over-burning of the material sowing mouth of the circulating fluidized bed incinerator is avoided, the spiral feeder is obliquely arranged to the gasification reactor near the side of the gasification reactor and is provided with a material sowing wind interface which takes steam generated by the waste heat boiler as an oil sludge gasification gasifying agent, so that safety accidents caused by overflow of combustible gas in the gasification reactor are avoided, and negative effects of combustion caused by air as material sowing wind are avoided;
the circulating fluidized bed sludge incineration system comprises a circulating fluidized bed incinerator, a circulating fluidized bed directional hood, a circulating fluidized bed primary air chamber, a flue gas side primary gas-solid cyclone separator, a flue gas side secondary gas-solid cyclone separator, a flue gas secondary combustion chamber and a hot material distributor. The circulating fluidized bed directional hood is positioned on a lower air distribution plate of the circulating fluidized bed incinerator, and is used for feeding air distributed by a primary air chamber of the circulating fluidized bed into a hearth of the circulating fluidized bed incinerator through the circulating fluidized bed directional hood arranged on the air distribution plate separating the primary air chamber from the circulating fluidized bed incinerator; the upper part of the circulating fluidized bed incinerator is sequentially connected with a flue gas side primary gas-solid cyclone separator and a flue gas side secondary gas-solid cyclone separator; the hot material distributor is positioned at the lower end of the flue gas side primary gas-solid cyclone separator, distributes hot materials such as high-temperature dust, bed materials and the like separated by the flue gas side primary gas-solid cyclone separator, and one part of the hot materials such as the high-temperature dust, the bed materials and the like are used for providing energy required by gasifying the oil sludge of the gasification reactor because of carrying heat, and the other part of the hot materials are returned into the circulating fluidized bed incinerator to heat the cold oil sludge just fed into the incinerator; the secondary flue gas combustion chamber is arranged behind the secondary flue gas-solid cyclone separator, so that the flue gas separated by the secondary flue gas-solid cyclone separator is combusted to be more than or equal to 1100 ℃ and the residence time is more than or equal to 2 seconds, and the aim is to thoroughly burn the organic matters which are not burnt out in the flue gas so as to meet the national environmental protection standard emission requirement;
the system comprises a gasification reactor, a wet sludge gasification atomization injection port, a gasification reactor directional blast cap, a gasification agent inlet, a gasification agent distribution chamber, a material returning device and a reaction gas outlet generated by gasification, wherein the front end of the gasification reactor is connected with a dry sludge gasification feeding system, the upper end of the gasification reactor is provided with the wet sludge gasification atomization injection port and the reaction gas outlet generated by gasification, the wet sludge gasification atomization injection port is connected with an atomization spray gun, and the atomization spray gun is connected to the wet sludge feeding system; the gasifying agent is superheated steam with the temperature of more than 540 ℃ which is self-produced by the system, a directional hood of the gasifying reactor is arranged on an air distribution plate in the gasifying reactor, a gasifying agent distribution chamber is arranged below the directional hood of the gasifying reactor, and the returning device is positioned below the gasifying reactor and connected to a hearth of the circulating fluidized bed incinerator;
the incineration side flue gas waste heat utilization system consists of a steam superheating furnace, an air preheater, a waste heat boiler evaporator, a waste heat boiler economizer, a condenser, a waste heat boiler steam drum, a deoxidizing water tank, a superheater desuperheater and a branch steam cylinder, wherein the waste heat boiler economizer is connected to the waste heat boiler steam drum through a pipeline, a steam-water separator is arranged in the waste heat boiler steam drum, a steam superheater heating surface is arranged in the steam superheating furnace, the steam superheater heating surface is divided into a high-temperature section steam superheater heating surface and a low-temperature Duan Zhengqi superheater heating surface, the high-temperature section steam superheater heating surface and the low-temperature Duan Zhengqi superheater heating surface are communicated through a header in a collecting manner, the superheater desuperheater is arranged in the collecting header, the water tank is connected to the condenser through a pipeline, softened water of the water treatment unit absorbs heat in the condenser, and is conveyed to the deoxidizing water tank to cool gasified gas by means of the temperature and pressure of water, and the gasified gas is cooled, and the water vapor and crude oil in the gasified gas are condensed down to be conveyed to the oil storage tank; the steam superheating furnace is connected with a sub-cylinder, and is respectively connected with a gasifying agent inlet at the bottom of the gasification reactor, a soot blower of the waste heat boiler and other heat users through the distribution function of the sub-cylinder;
the incineration-side flue gas environment-friendly treatment system consists of an SNCR denitration system, an SCR denitration system, a flue gas mixer, a bag-type dust remover, a deacidification washing tower, an induced draft fan and a chimney, wherein the flue gas mixer is a large venturi tube, two interfaces are arranged at the throat of the flue gas mixer, one interface is connected with an active carbon spraying system, the purpose of adsorbing dioxin harmful substances possibly existing in flue gas is achieved, and the other interface is connected with a slaked lime spraying system, and the purpose of desorbing and eliminating the dioxin harmful substances adsorbed by the active carbon is achieved; the rear part of the flue gas mixer is connected with a cloth bag dust remover, the flue gas incinerated by the oil sludge is carried with dust and sprayed active carbon and slaked lime for gas-solid separation, the rear part of the cloth bag dust remover is connected with a deacidification washing tower, the upper end of the deacidification washing tower is provided with an alkali liquor atomizing nozzle, and atomized alkali liquor is sprayed and SO in the flue gas is sprayed 3 2- 、CL - The neutralization reaction of the acid radical ions is carried out, so that the purpose of deacidification is achieved; the SNCR denitration system is connected to the hearth outlet of the circulating fluidized bed incinerator through an ammonia gas-air mixer II for high Wen Tuoxiao, and the SCR denitration system is connected to the middle temperature Duan Yandao before the flue gas outlet of the air preheater enters the SCR denitration device through the ammonia gas-air mixer I for middle temperature denitration;
the gasification side reaction gas purification system comprises a gas-solid cyclone separator, a condenser, an oil storage tank and an air storage cabinet, wherein the gas-solid cyclone separator is connected to a reaction gas outlet generated by gasification, the condenser is connected to an upper outlet of the gas-solid cyclone separator, water vapor, crude oil, naphthalene substances and phenol substances in gasification gas are condensed in a boiler water supply heat absorption mode, and a lower outlet of the condenser is connected to the oil storage tank; the gasified gas condensed by the condenser can be sent into a gas storage cabinet for storage through a water ring compressor for standby use, and can also be directly combined into a gas pipe network for production and living use.
Preferably, the flue gas side primary gas-solid cyclone separator and the flue gas side secondary gas-solid cyclone separator are provided with inserts such as lining cylinders, a space interlayer is arranged between the lining cylinders and the cyclone separator outer shell, the space interlayer enables dust-carrying flue gas to flow onto the lining cylinders in a rotating way with the cyclone separator outer shell after entering the cyclone separator, the dust-carrying flue gas continues to flow in a rotating way, a vacuum state is formed between the space interlayers, and dust particles of the dust-carrying flue gas can fall to the bottom of the cyclone separator in the space interlayer by means of gravity; an ash dropping hopper is arranged at the bottom of the cyclone separator.
The invention has the beneficial effects that the coal gas with high combustion value can be recovered by treating the oil sludge, thereby realizing the treatment purposes of harmless, reduction and recycling of the oil sludge. The system processes the oil sludge through the circulating fluidized bed incinerator and the gas-solid cyclone separator, the gas-solid components are thoroughly separated, the resource recycling rate of the combustible components is high, the quality of produced combustible gas is high, the produced solid ash can be recycled to manufacture building materials and the waste heat of a boiler is fully recycled for production and living use, and finally the discharged processed flue gas completely meets the discharge requirement of national environmental protection standards; and the main equipment has compact layout, small occupied space and simple oil sludge treatment flow.
Drawings
FIG. 1 is an overall system flow diagram of the present invention;
FIG. 2 is a schematic view of a gasification chamber connection;
FIG. 3 is a schematic diagram of a condenser arrangement;
FIG. 4 is a schematic diagram of a dry sludge combustion feed system arrangement;
FIG. 5 is a schematic diagram of a flue gas side primary gas-solid cyclone separator;
in the figure: 1. a dry oil sludge gasification feeding system; 2. a wet sludge feeding system; 3. a dry sludge combustion feeding system; 4. an ash overflow port; 5. an ash falling pipe; 6. circulating fluidized bed primary air chamber; 7. a circulating fluidized bed directional hood; 8. a circulating fluidized bed incinerator; 9. denitration ammonia spraying port in SNCR furnace; 10. a first-stage gas-solid cyclone separator at the flue gas side; 11. a flue gas side secondary gas-solid cyclone separator; 12. a flue gas secondary combustion chamber; 13. a steam superheating furnace; 14. an air preheater; 15. an SCR denitration device; 16. an evaporator of the waste heat boiler; 17. a waste heat boiler economizer; 18. a flue gas mixer; 19. a bag-type dust collector; 20. deacidifying and washing tower; 21. an induced draft fan; 22. a chimney; 23. a cylinder; 24. burning oil sludge to spread materials; 25. gasifying oil sludge and sowing wind; 26. a hot material distributor; 27. a wet oil sludge gasification atomization spraying inlet; 28. a gasification reactor; 29. a directional hood of the gasification reactor; 30. a gasifying agent inlet; 31. a gasifying agent distribution chamber; 32. a material returning device; 33. a reaction gas outlet generated by gasification; 34. a gas-solid cyclone separator; 35. a condenser; 36. an oil storage tank; 37. waste heat boiler drum; 38. a liquid ammonia tank; 39. a vaporizer; 40. a buffer tank; 41. an ammonia air mixer I; 42. an ammonia air mixer II; 43. deoxidizing the water tank; 44. superheater desuperheater; 3-1, vibrating a crusher; 3-2, a bucket type lifting conveyor; 3-3, a dry oil sludge storage tank; 3-4, star feeder; 3-5, a screw feeder; 101. A cyclone separator housing; 102. a spatial interlayer; 103. a lining cylinder; 104. and an ash falling hopper.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only preferred embodiments of the present invention, 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 be within the scope of the invention.
Example 1: referring to fig. 1-3, an environment-friendly and energy-saving recycling treatment system for an oil sludge circulating fluidized bed, main equipment comprises: six systems, namely an oil sludge pretreatment and feeding system, a circulating fluidized bed oil sludge incineration system, an oil sludge fluidization gasification system, an incineration side flue gas waste heat utilization system, an incineration side flue gas environment-friendly treatment system and a gasification side reaction gas purification system;
the sludge pretreatment and feeding system comprises a dry sludge gasification feeding system 1, a wet sludge feeding system 2 and a dry sludge combustion feeding system 3. The dry oil sludge of the dry oil sludge gasification feeding system 1 and the dry oil sludge combustion feeding system 3 is crushed by a vibration crusher 3-1, then is sent to a dry oil sludge storage tank 3-3 by a bucket lifting conveyor 3-2, is sent to a screw feeder 3-5 from the dry oil sludge storage tank 3-3 by a star feeder 3-4, and is sent to a circulating fluidized bed incinerator 8 and a gasification reactor 28 respectively by the screw feeder 3-5 for combustion and gasification. The spiral feeder 3-5 is provided with an oil sludge combustion material sowing wind 24 interface which is obliquely arranged towards the hearth near the side of the circulating fluidized bed incinerator 8, so that overburning of the material sowing port of the circulating fluidized bed incinerator 8 is avoided, the spiral feeder 3-5 is provided with an oil sludge gasification material sowing wind 25 interface which is obliquely arranged towards the gasification reactor 28 near the side of the gasification reactor 28, and safety accidents caused by overflow of combustible gas in the gasification reactor 28 are avoided.
The circulating fluidized bed sludge incineration system comprises a circulating fluidized bed incinerator 8, a circulating fluidized bed directional blast cap 7, a circulating fluidized bed primary air chamber 6, a flue gas side primary gas-solid cyclone separator 10, a flue gas side secondary gas-solid cyclone separator 11, a flue gas secondary combustion chamber 12 and a hot material distributor 26, wherein the circulating fluidized bed incinerator 8 is characterized in that a certain amount of pre-filled bed materials (quartz sand with the particle size of 1-3 mm) are heated to be more than 650 ℃ through adding fuel ignition, then dry sludge is put into the circulating fluidized bed incinerator, and the hot bed materials and the dry sludge are subjected to suspension fluidization combustion to 850-950 ℃ under the action of primary air; the circulating fluidized bed directional hood 7 is used for sending air distributed by the circulating fluidized bed primary air chamber 6 into a hearth of the circulating fluidized bed incinerator 8, and enabling materials on an air distribution plate borne by the circulating fluidized bed directional hood 7 to flow in the same direction. The flue gas generated after the oil sludge is incinerated by the circulating fluidized bed incinerator 8 and dust carried by the flue gas are subjected to gas-solid separation by the cyclone separators through the flue gas side primary gas-solid cyclone separator 10 and the flue gas side secondary gas-solid cyclone separator 11; the gas-solid cyclone separators (10, 11) are provided with lining cylinders 103, a space interlayer 102 is arranged between the lining cylinders and the cyclone separator outer shell 101, the space interlayer 102 can realize the rotary flow of dust-carrying flue gas after entering the cyclone separator, and dust in the dust-carrying flue gas falls into the space interlayer 102 and falls into a dust falling hopper 104 at the bottom of the cyclone separator under the action of vector change and gravity. The hot material distributor 26 distributes hot materials such as high-temperature dust, bed materials and the like separated by the primary gas-solid cyclone separator 10 at the flue gas side, one part of the hot materials are distributed to meet the energy required by the gasification of the sludge in the gasification reactor 28, and the other part of the hot materials are excessive hot materials, and the excessive hot materials are sent back to the circulating fluidized bed incinerator 8 to heat the cold sludge just fed into the circulating fluidized bed incinerator. The circulating fluidized bed primary air chamber 6 distributes primary air required for burning the sludge to the circulating fluidized bed directional hood 7, and the primary air required for burning is provided to the circulating fluidized bed incinerator 8 through the circulating fluidized bed directional hood 7. The secondary flue gas combustion chamber 12 combusts the flue gas separated by the secondary gas-solid cyclone separator 11 at the flue gas side to be more than or equal to 1100 ℃ through gasification gas, and the residence time is more than or equal to 2s, so that organic matters and other harmful substances in the flue gas generated in the oil sludge incineration process are thoroughly incinerated, and the requirements of national environmental protection standards are met.
The sludge fluidization gasification system comprises a gasification reactor 28, a wet sludge gasification atomization injection port 27, a gasification reactor directional hood 29, a gasifying agent inlet 30, a gasifying agent distribution chamber 31, a returning charge device 32 and a reaction gas outlet 33 generated by gasification. The dry oil sludge is sent into a gasification reactor 28 through a dry oil sludge gasification feeding system 1, is mixed with the hot materials distributed by the hot material distributor 26, and is gasified together with a gasifying agent of superheated steam with the temperature of more than 540 ℃; the wet sludge pumped from the wet sludge feeding system 2 is fed through the wet sludge gasification atomization injection port 27 into the gasification reactor 28 via the atomization spray gun. The temperature in the gasification reactor 28 can be adjusted because the wet sludge water provides gasifying agent for gasification on the one hand. The gasifying agent enters the gasifying agent distributing chamber 31 through the gasifying agent inlet 30 and is further distributed to the directional wind caps 29 of the gasifying reactor arranged on the air distribution plates in the gasifying reactor 28, and is uniformly and directionally fed into the gasifying reactor 28 through the directional wind caps 29 of the gasifying reactor to carry out gasification reaction. The return device 32 is used for sending the residual sludge which is gasified in the gasification reactor 28 back to the circulating fluidized bed incinerator 8 through feeding air and loose air to be fully burned out. The wet oil sludge gasification atomization spraying inlet 27 is connected with an atomization spray gun, and the atomization spray gun utilizes superheated steam with the temperature of more than 540 ℃ as an atomization agent to atomize the wet oil sludge into oil sludge fog drop particles with the granularity of less than or equal to 100 meshes, so that the specific surface area of the oil sludge particles can be increased, and the atomization strength can be effectively improved.
The system for utilizing the waste heat of the flue gas at the incineration side consists of a steam superheating furnace 13, an air preheater 14, a waste heat boiler evaporator 16, a waste heat boiler economizer 17, a condenser 35, a waste heat boiler drum 37, a deoxidizing water tank 43, a superheater desuperheater 44 and a branch cylinder 23. The steam superheating furnace 13 is characterized in that deoxygenated water pumped from a deoxygenating water tank 43 is sent into a waste heat boiler economizer 17, heated by flue gas waste heat and then sent into a waste heat boiler steam drum 37, the waste heat boiler steam drum 37 is used for sending boiler water into the waste heat boiler evaporator 16 through a connecting pipeline, the steam-water mixture generated by the waste heat boiler evaporator 16 after being heated by the flue gas waste heat is sent back into the waste heat boiler steam drum 37 through the connecting pipeline, separated saturated steam is sent into the steam superheating furnace 13 for heating the superheater through high-temperature waste heat flue gas, saturated steam is superheated, the temperature of steam at the outlet of the superheater is adjusted by pumping boiler feed water in the deoxygenating water tank 43 to a superheater desuperheater 44, the superheater desuperheater 44 has two temperature reducing modes, namely, the mode one can be used for directly spraying water for reducing the temperature, the boiler feed water is directly sprayed into the superheated steam to adjust the temperature of the superheated steam, and the separated saturated steam is sent into the deoxygenating water tank 43 through a wall type desuperheater. The boiler feed water in the deoxidization water tank 43 pumps softened water meeting the water quality requirement of the boiler into the condenser 35, the softened water is heated by the high-temperature waste heat of the gasification gas through a heating surface in the condenser 35, and deoxidization is carried out in the deoxidization water tank 43, so that on one hand, the high-temperature waste heat of the gasification gas is utilized, on the other hand, the purpose of heating the boiler feed water to 105 ℃ to achieve deoxidization is achieved, meanwhile, the gasification gas is cooled, and water vapor and crude oil in the gasification gas are condensed. The superheated steam generated by the steam superheating furnace 13 is sent to the sub-cylinder 23, and the superheated steam is distributed into a plurality of steam flows to be respectively sent to different devices for use through the collecting and distributing actions of the sub-cylinder 23, one steam flow is sent to the gasifying agent inlet 30 at the bottom of the gasifying reactor 28 as the gasifying agent for the gasifying reaction of the oil sludge, and the other steam flow is used as the waste heat boiler steam for soot blowing, and the redundant steam flow is used for other heat users.
The incineration side flue gas environment-friendly treatment system consists of a flue gas mixer 18, a bag-type dust remover 19, a deacidification washing tower 20, a draught fan 21, a chimney 22, an SNCR denitration system and an SCR denitration system. The flue gas mixer 18 is a larger venturi tube, the throat of the venturi tube is provided with two interfaces, one interface is connected with the activated carbon spraying system, so as to adsorb dioxin harmful substances possibly existing in flue gas, and the other interface is connected with the slaked lime spraying system, so as to desorb and eliminate the dioxin harmful substances adsorbed by the activated carbon. The bag-type dust collector 19 is used for carrying out gas-solid separation on dust-carrying flue gas generated by oil sludge incineration and sprayed active carbon and slaked lime, so that the dust emission of the flue gas is ensured to completely meet the national environmental protection standard requirement. The deacidification washing tower 20 is characterized in that alkali liquor in a precipitation tank is extracted, atomized and sprayed into the tower, and neutralization reaction is carried out on the alkali liquor and acid gas in the flue gas after dust removal, so that the deacidification purpose is achieved. The SNCR denitration system and the SCR denitration system are characterized in that the high-temperature flue gas side of the hearth outlet of the circulating fluidized bed incinerator 8 is sprayed with ammonia air mixed gas pumped from a buffer tank 40 to an ammonia air mixer II 42 for high Wen Tuoxiao, and the medium-temperature Duan Yandao before the flue gas outlet of the air preheater 14 enters the SCR denitration device 15 is sprayed with ammonia air mixed gas pumped from the buffer tank 40 to the ammonia air mixer I41 for medium-temperature denitration.
The gasification side reaction gas purification system comprises a gas-solid cyclone separator 34, a condenser 35, an oil storage tank 36 and an air storage cabinet. The gas-solid cyclone separator 34 performs gas-solid separation on the gasified gas, the condenser 35 condenses water vapor, crude oil, naphthalene and phenol in the gasified gas by the heat absorption of boiler feed water, and the condensed gas is sent into the oil storage tank 36 as chemical and oil refining raw materials. The gasified gas condensed by the condenser 35 can be sent into a gas storage cabinet for storage by a water ring compressor, and can also be directly combined into a gas pipe network for production and living use.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "disposed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
1. An environment-friendly energy-saving recycling treatment system of an oil sludge circulating fluidized bed, which mainly comprises the following equipment: the system comprises an oil sludge pretreatment and feeding system, a circulating fluidized bed oil sludge incineration system, an oil sludge fluidization gasification system, an incineration side flue gas waste heat utilization system, an incineration side flue gas environment-friendly treatment system and a gasification side reaction gas purification system, and is characterized in that: the sludge pretreatment and feeding system is divided into a dry sludge gasification feeding system (1), a wet sludge feeding system (2) and a dry sludge combustion feeding system (3); the dry sludge gasification feeding system (1) and the dry sludge combustion feeding system (3) are connected to the vibrating crusher (3-1) in front, the vibrating crusher (3-1) is connected to the dry sludge storage tank (3-3) through the bucket-type lifting conveyor (3-2) in back, the dry sludge storage tank (3-3) is connected to the star feeder (3-4) in back, the screw feeder (3-5) is arranged in back of the star feeder (3-4), the screw feeder (3-5) is respectively connected to the circulating fluidized bed incinerator (8) and the gasification reactor (28) in back, the screw feeder (3-5) is obliquely arranged with an oil sludge combustion feed wind (24) interface near a lateral hearth of the circulating fluidized bed incinerator (8), and the screw feeder (3-5) is obliquely arranged with an oil sludge gasification feed wind (25) interface near a side of the gasification reactor (28);
the circulating fluidized bed sludge incineration system comprises a circulating fluidized bed incinerator (8), a circulating fluidized bed directional hood (7), a circulating fluidized bed primary air chamber (6), a flue gas side primary gas-solid cyclone separator (10), a flue gas side secondary gas-solid cyclone separator (11), a flue gas secondary combustion chamber (12) and a hot material distributor (26), wherein the circulating fluidized bed directional hood (7) is positioned at the lower part of the circulating fluidized bed incinerator (8); the upper part of the circulating fluidized bed incinerator (8) is sequentially connected with a flue gas side primary gas-solid cyclone separator (10) and a flue gas side secondary gas-solid cyclone separator (11); the hot material distributor (26) is positioned at the lower end of the primary gas-solid cyclone separator (10) at the flue gas side; a flue gas secondary combustion chamber (12) is arranged behind the flue gas side secondary gas-solid cyclone separator (11);
the sludge fluidization gasification system comprises a gasification reactor (28), a wet sludge gasification atomization injection port (27), a gasification reactor directional hood (29), a gasification agent inlet (30), a gasification agent distribution chamber (31), a material returning device (32) and a reaction gas outlet (33) generated by gasification, wherein the front end of the gasification reactor (28) is connected with a dry sludge gasification feeding system (1), the upper end of the gasification reactor (28) is provided with the wet sludge gasification atomization injection port (27) and the reaction gas outlet (33) generated by gasification, and the wet sludge gasification atomization injection port (27) is connected with an atomization spray gun; a gasification reactor directional hood (29) is arranged on an air distribution plate in the gasification reactor (28), a gasification agent distribution chamber (31) is arranged below the gasification reactor directional hood (29), and a material returning device (32) is arranged below the gasification reactor (28) and connected to a hearth of the circulating fluidized bed incinerator (8);
the system for utilizing the flue gas waste heat at the incineration side consists of a steam superheating furnace (13), an air preheater (14), a waste heat boiler evaporator (16), a waste heat boiler economizer (17), a condenser (35), a waste heat boiler steam drum (37), a deoxidizing water tank (43), a superheater attemperator (44) and a branch cylinder (23), wherein the rear part of the steam superheating furnace (13) is connected to the waste heat boiler economizer (17), the waste heat boiler economizer (17) is connected to the waste heat boiler steam drum (37), a steam-water separator is arranged in the waste heat boiler steam drum (37), the superheater attemperator (44) is arranged in the steam superheating furnace (13), the deoxidizing water tank (43) is connected to the condenser (35), and the rear part of the steam superheating furnace (13) is connected to a gasifying agent inlet (30) at the bottom of the gasification reactor (28), a soot blower of the waste heat boiler and other heat users through the collecting and distributing functions of the branch cylinder (23);
the incineration-side flue gas environment-friendly treatment system consists of a flue gas mixer (18), a bag-type dust remover (19), a deacidification washing tower (20), an induced draft fan (21), a chimney (22), an SNCR denitration system and an SCR denitration system, wherein the flue gas mixer (18) is a larger venturi tube, the throat part of the venturi tube is provided with two interfaces, one interface is connected with an active carbon spraying system, and the other interface is connected with a slaked lime spraying system; the rear part of the flue gas mixer (18) is connected with a cloth bag dust remover (19), the rear part of the cloth bag dust remover (19) is connected with a deacidification washing tower (20), and an atomization nozzle is arranged at the upper end of the deacidification washing tower (20); the SNCR denitration system is connected to the hearth outlet of the circulating fluidized bed incinerator (8) through an ammonia gas air mixer II (42), and the SCR denitration system is connected to a medium temperature Duan Yandao before a flue gas outlet of the air preheater (14) enters the SCR denitration device (15) through an ammonia gas air mixer I (41);
the gasification side reaction gas purification system comprises a gas-solid cyclone separator (34), a condenser (35), an oil storage tank (36) and an air storage tank, wherein the gas-solid cyclone separator (34) is connected to a reaction gas outlet (33) generated by gasification, the condenser (35) is connected to an upper outlet of the gas-solid cyclone separator (34), and a lower outlet of the condenser (35) is connected to the oil storage tank (36); the gasified gas condensed by the condenser (35) can be sent into a gas storage cabinet for storage through a water ring compressor for standby, and can also be directly integrated into a gas pipe network for production and living use.
2. The environment-friendly and energy-saving recycling treatment system of the sludge circulating fluidized bed, which is characterized in that: the flue gas side primary gas-solid cyclone separator (10) and the flue gas side secondary gas-solid cyclone separator (11) are provided with lining cylinders (103), a space interlayer (102) is arranged between the lining cylinders and the cyclone separator outer shell (101), dust-carrying flue gas enters the cyclone separator and then flows onto the lining cylinders (103) in a rotating way, the dust-carrying flue gas continues to flow in a rotating way, a vacuum state is formed between the space interlayers (102), and dust particles of the dust-carrying flue gas can fall to the bottom of the cyclone separator in the space interlayer (102) by means of gravity; an ash dropping hopper (104) is arranged at the bottom of the cyclone separator.
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| CN111637465B (en) * | 2020-05-29 | 2022-01-11 | 东华工程科技股份有限公司 | Treatment system and method for combustible industrial solid waste |
| CN112062435B (en) * | 2020-08-27 | 2023-10-10 | 广州维港环保科技有限公司 | Oil sludge pyrolysis treatment device and process thereof |
| CN112254155A (en) * | 2020-11-05 | 2021-01-22 | 北京一亚高科能源科技有限公司 | Sludge gasification incinerator |
| CN112811770A (en) * | 2021-02-09 | 2021-05-18 | 天津泰姆生态环境科技有限公司 | Oil sludge treatment method |
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| CN108675589A (en) * | 2018-07-23 | 2018-10-19 | 哈尔滨金源伟业环保科技有限公司 | A kind of continous way greasy filth pyrolysis treatment systems and pyrolysis treating method |
| CN209602466U (en) * | 2019-01-28 | 2019-11-08 | 大连科林能源工程技术开发有限公司 | A kind of greasy filth recirculating fluidized bed environment-friendly and energy-efficient recycling treatment system |
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