CN204227429U - Fluid bed sludge incinerating system - Google Patents
Fluid bed sludge incinerating system Download PDFInfo
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- CN204227429U CN204227429U CN201420695198.5U CN201420695198U CN204227429U CN 204227429 U CN204227429 U CN 204227429U CN 201420695198 U CN201420695198 U CN 201420695198U CN 204227429 U CN204227429 U CN 204227429U
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- heat exchanger
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The utility model discloses a kind of fluid bed sludge incinerating system, comprise sludge incineration device, two-stage heat-exchanger rig, cleaning dust device, after burner, sludge incineration device comprises fluidized bed incinerator, two-stage heat-exchanger rig comprises first-class heat exchanger and secondary heat exchanger, the thermal pathways of first-class heat exchanger is communicated with the gas outlet, top of fluidized bed incinerator, the thermal pathways of first-class heat exchanger is also ganged up with the thermal pathways of secondary heat exchanger and is connected, the thermal pathways of secondary heat exchanger is connected with cleaning dust device, cleaning dust device is also connected with after burner, the cold passage of first-class heat exchanger is communicated with fluidized bed incinerator, the cold passage of secondary heat exchanger is communicated with after burner.Be provided with multi-stage heat exchanger, reach recuperation of heat and utilize, utilize recuperation of heat heating system simultaneously, first carry out waste gas solidification to waste gas simultaneously and absorb, then second-time burning, makes the cost of after burner and volume all reach and minimizes.
Description
Technical field
The utility model relates to incinerating and treating device and the processing method of mud, belongs to environmental protection technical field of sludge treatment.
Background technology
At present, the discharge capacity of urban industry waste water and sanitary sewage is increasing, and sewage load gets more and more, and the sludge yield of sewage treatment plant also sharply increases.While employing materialization, biological method are disposed of sewage, a large amount of excess sludge can be produced, the mud that wherein organic content is very high must obtain treatment and disposal in time, otherwise can cause secondary pollution, and the final settling mode of mud mainly adopts: landfill, agricultural, drying and incineration.Due to industrial development, the content of beary metal most cases in mud exceeds standard all, cannot directly carry out agricultural, simultaneously constantly reducing due to landfill yard area, and mud transportation range is more and more remoter again.And though mud is through processed, its moisture content is still higher, causes landfill yard to be difficult to accept, and then causes landfill or landfill expense constantly rising.Traditional method for sludge treatment, namely carries out mechanicalness simply and concentrates and processed, can not meet processing requirements and the cleanup standard of present stage in sewage treatment plant.
In conventional art, patent name is had to be the patent document that incineration thermoelectric treatment system combined by mud and rubbish, mud and rubbish associating incineration thermoelectric treatment system comprise refuse burning system, sludge incinerating system, exhaust treatment system, wherein, refuse burning system comprises grate furnace, the hot gas passing away of grate furnace is communicated with boiler, the steam (vapor) outlet of boiler is communicated with steam header, the steam outlet of steam header is divided into steam outlet A, steam outlet B, steam outlet C, steam outlet D, steam outlet A is connected to boiler by backflow after oxygen-eliminating device, after steam outlet B is connected to oxygen-eliminating device by vapor condenser, backflow is connected to boiler, steam outlet C is connected to oxygen-eliminating device after steam turbine generator, steam outlet D is connected to oxygen-eliminating device after residual heat using device, sludge incinerating system comprises the wet sludge bin connected successively, mud revolution desiccation machine, fluid bed sludge incinerator, the heat supply end of mud revolution desiccation machine is connected with residual heat using device, the mud output port of mud revolution desiccation machine is connected with fluid bed sludge incinerator and wet sludge bin, the hot waste gas of fluid bed sludge incinerator forms heat smoke and useless dirt gas after being separated, heat smoke enters boiler, useless dirt gas enters exhaust treatment system, exhaust treatment system comprises the evaporation reaction tower connected successively, cloth bag reactor, steam smoke heater, desulfuring and denitrifying apparatus, air-introduced machine, chimney, the connecting pipe of evaporation reaction tower and cloth bag reactor is communicated with administration device, steam smoke heater is connected with ammonifying device, the solidfied material outlet of evaporation reaction tower and the solidfied material outlet of cloth bag reactor are connected to flyash curing storehouse simultaneously, the useless dirt gas of fluid bed sludge incinerator enters cloth bag reactor, and the waste gas of boiler enters evaporation reaction tower.
The composition of sewage sludge is very complicated, and except containing except a large amount of moisture, also containing a large amount of useful resources, the mud after mummification, can apply to the betterment of land, building materials utilization etc., but General Requirements moisture content is below 55%.Sludge drying mode has: natural air drying, directly heating and indirect.How to reduce the moisture content of mud, reduce energy consumption, reduce secondary pollution, this is the key technology of Treatment of Sludge.The mode that traditional sludge is burned is: first by moisture content up to more than 99% mud through dehydration concentrated after make the moisture content of mud reach less than 80%, now adopt the concentrated mode of dehydration further can not reduce the moisture content of mud, now need by desiccation machine, the moisture in mud is evaporated by the mode of electrical heating or heated by natural gas, the moisture content of mud is made further to be reduced to less than 60%, mud now can carry out burning process by high-temperature heating burning to the material in mud, flue gas after pending directly or indirectly processes rear discharge, therefore in the technology of traditional burning sludge, also need independently to arrange fume treatment auxiliary, this increases equipment cost and maintenance cost undoubtedly, sometimes owner is in order to reduce costs, directly the flue gas of generation is directly discharged, cause secondary pollution, do not meet the needs of country to environmental protection.
Utility model content
The purpose of this utility model is to provide a kind of fluid bed sludge incinerating system and processing method, be provided with multi-stage heat exchanger, reach recuperation of heat to utilize, utilize recuperation of heat heating system simultaneously, first carry out waste gas solidification to waste gas to absorb simultaneously, then second-time burning, makes the cost of after burner and volume all reach and minimizes, and reduces input cost and operating cost.
The purpose of this utility model is achieved through the following technical solutions: fluid bed sludge incinerating system, comprise sludge incineration device, two-stage heat-exchanger rig, cleaning dust device, after burner, sludge incineration device comprises fluidized bed incinerator, two-stage heat-exchanger rig comprises first-class heat exchanger and secondary heat exchanger, the thermal pathways of first-class heat exchanger is communicated with the gas outlet, top of fluidized bed incinerator, the thermal pathways of first-class heat exchanger is also ganged up with the thermal pathways of secondary heat exchanger and is connected, the thermal pathways of secondary heat exchanger is connected with cleaning dust device, cleaning dust device is also connected with after burner, the cold passage of first-class heat exchanger is communicated with fluidized bed incinerator, the cold passage of secondary heat exchanger is communicated with after burner.
Structural principle of the present utility model is: the larger mud of humidity is through the drying and other treatment in early stage of sludge incineration device, the burning of the fluidized bed incinerator then in sludge incineration device, form exhaust gas particle mixture, then by the first-class heat exchanger of two-stage heat-exchanger rig by the heat recovery in exhaust gas particle mixture to fluidized bed incinerator, for fluidized bed incinerator provides heat, simultaneously, the secondary heat exchanger of two-stage heat-exchanger rig carries out heat recovery to exhaust gas particle mixture again, heat is input to after burner position after burner simultaneously and carries out preheating, play recovery heat, the object of economize energy, then cleaning dust device is adopted to carry out cleaning dust process to exhaust gas particle mixture, sour gas in exhaust gas particle mixture and dust granules thing are washed into solid matter to discharge, remaining gas enters in after burner, gas after preheating is finally just discharged into atmosphere through again burning and absorbing process.System after arranging like this, little to air pollution, do not have particulate matter to be drained in air, effectively alleviate the generation of haze.
Preferably, sludge incineration device also comprises the sludge-tank, sludge dewatering equipment, the sludge drier that are communicated with successively, fluidized bed incinerator comprises the preheater being communicated with fluidized combustion furnace interior, preheater is communicated with sludge drier, the cold channel connection of preheater and first-class heat exchanger, fluidized bed incinerator is also communicated with deposits sand tank.
The mud left in sludge-tank first dewaters through sludge dewatering equipment, most of moisture in mud is deviate from, and then through the drying process of sludge drier, the mud of final formation moisture content less, this mud is sent in fluidized bed incinerator and carries out burning process, combustible in mud is decomposed, form heat, heat is recycled by the cold passage of first-class heat exchanger again, preheater is utilized to absorb the heat of cold passage recovery, then to mud heating, the mud entering fluidized bed incinerator is easily lighted.
Preferably, in order to provide sufficient oxygen, fluidized bed incinerator is communicated with air compressor machine.
Preferably, cleaning dust device comprises the Venturi scrubber, pallet washer, the wet cottrell that are communicated with successively, Venturi scrubber is communicated with the thermal pathways of secondary heat exchanger, also comprise the caustic alkali charging pump being communicated with caustic alkali storehouse, caustic alkali charging pump is communicated with wet cottrell with Venturi scrubber simultaneously, the bottom of pallet washer and the bottom of wet cottrell are communicated to ash bucket simultaneously, and the top of wet cottrell is communicated with after burner.
The exhaust gas particle mixture that secondary heat exchanger exports enters into Venturi scrubber, pallet washer, waste gas and particle washing precipitation is carried out in wet cottrell, in this configuration, caustic alkali charging pump is utilized the caustic alkali in caustic alkali storehouse to be blown in Venturi scrubber and wet cottrell the sour gas absorbed with waste gas reaction wherein, utilize caustic alkali charging pump can be distributed in Venturi scrubber and wet cottrell uniformly by pulverous caustic alkali, sour gas can be absorbed greatly, particle also can be absorbed, too much particle can be adsorbed by wet cottrell simultaneously, finally from the gas that wet cottrell exports, no longer contain sour gas and particle.Effectively sour gas and particle are separated.
The top of wet cottrell is communicated with blower fan of removing contamination.
Separated waste gas enters into after burner and carries out second-time burning process, and after burner comprises the burner, carbon absorber, the chimney that are communicated with successively, and burner is communicated with cleaning dust device, the cold channel connection of burner and secondary heat exchanger.Its combustion gas lighted by burner, unburned material in burnt gas, then through the absorption of carbon absorber, and final toxic emission.
Preferably, also comprise the preheating fan, the fluidized air blower that interconnect, fluidized air blower is communicated with the input of first-class heat exchanger cold passage, fluidized air blower is communicated with the output of first-class heat exchanger cold passage, preheating fan is communicated with the output of first-class heat exchanger cold passage, and preheating fan is communicated with fluidized bed incinerator.
Based on the processing method of above-mentioned fluid bed sludge incinerating system, comprise the steps:
A, sludge drying step: the mud in sludge-tank is by carrying out drying after sludge dewatering equipment, sludge drier;
B, sludge incineration step: the sludge-drying in previous step is sent in fluidized bed incinerator and burns;
C, heat exchange step: the exhaust gas particle mixture that gas outlet, fluidized bed incinerator top exports is input in the thermal pathways of first-class heat exchanger, by the thermal pathways of first-class heat exchanger and the heat exchange of cold passage, by the heat absorption of exhaust gas particle mixture, heat disturbance after absorption is in fluidized bed incinerator, cooled exhaust gas particle mixture flows in the thermal pathways of lower secondary heat exchanger, by the thermal pathways of secondary heat exchanger and the heat exchange of cold passage, by the heat absorption of exhaust gas particle mixture, the heat after absorption flows in after burner;
D, cleaning dust step: be input in cleaning dust device by the exhaust gas particle mixture in secondary heat exchanger thermal pathways, through the cleaning dust process of Venturi scrubber, pallet washer, wet cottrell;
E, second-time burning step: the waste gas that wet cottrell exports is input in after burner and again burns.
In cleaning dust step, the caustic alkali that Venturi scrubber and wet cottrell all will introduce dust formula mixes with exhaust gas particle mixture, absorbs the sour gas in exhaust gas particle mixture.
In sum, the beneficial effects of the utility model are: can effective, large batch of lignin-sludge, and be effectively separated by the waste gas after burning, good separating effect, cost is low, reach the object of low-carbon environment-friendly discharge.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Name in accompanying drawing corresponding to Reference numeral is called: 1, sludge-tank, 2, sludge dewatering equipment, 3, sludge drier, 4, fluidized bed incinerator, 5, combustion gas, 6, preheater, 7, deposit sand tank, 8, air compressor machine, 9, preheating fan, 10, fluidized air blower, 11, first-class heat exchanger, 12, secondary heat exchanger, 13, air-heater again, 14, burner, 15, carbon absorber, 16, chimney, 17, Venturi scrubber, 18, pallet washer, 19, wet cottrell, 20, to remove contamination blower fan, 21, caustic alkali storehouse, 22, caustic alkali charging pump, 23, ash bucket.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited thereto.
Embodiment 1:
As shown in Figure 1,
Fluid bed sludge incinerating system, comprise sludge incineration device, two-stage heat-exchanger rig, cleaning dust device, after burner, sludge incineration device comprises fluidized bed incinerator 4, two-stage heat-exchanger rig comprises first-class heat exchanger 11 and secondary heat exchanger, the thermal pathways of first-class heat exchanger 11 is communicated with the gas outlet, top of fluidized bed incinerator 4, the thermal pathways of first-class heat exchanger 11 is also ganged up with the thermal pathways of secondary heat exchanger and is connected, the thermal pathways of secondary heat exchanger is connected with cleaning dust device, cleaning dust device is also connected with after burner, the cold passage of first-class heat exchanger 11 is communicated with fluidized bed incinerator 4, the cold passage of secondary heat exchanger is communicated with after burner.
Structural principle of the present utility model is: the larger mud of humidity is through the drying and other treatment in early stage of sludge incineration device, the burning of the fluidized bed incinerator 4 then in sludge incineration device, form exhaust gas particle mixture, then by the first-class heat exchanger 11 of two-stage heat-exchanger rig by the heat recovery in exhaust gas particle mixture to fluidized bed incinerator 4, for fluidized bed incinerator 4 provides heat, simultaneously, the secondary heat exchanger of two-stage heat-exchanger rig carries out heat recovery to exhaust gas particle mixture again, heat is input to after burner position after burner simultaneously and carries out preheating, play recovery heat, the object of economize energy, then cleaning dust device is adopted to carry out cleaning dust process to exhaust gas particle mixture, sour gas in exhaust gas particle mixture and dust granules thing are washed into solid matter to discharge, remaining gas enters in after burner, gas after preheating is finally just discharged into atmosphere through again burning and absorbing process.System after arranging like this, little to air pollution, do not have particulate matter to be drained in air, effectively alleviate the generation of haze.
Preferably, sludge incineration device also comprises the sludge-tank 1, sludge dewatering equipment 2, the sludge drier 3 that are communicated with successively, fluidized bed incinerator 4 comprises the preheater 6 being communicated with fluidized bed incinerator 4 inside, preheater 6 is communicated with sludge drier 3, the cold channel connection of preheater 6 and first-class heat exchanger 11, fluidized bed incinerator 4 is also communicated with deposits sand tank 7.
The mud left in sludge-tank first dewaters through sludge dewatering equipment 2, most of moisture in mud is deviate from, and then through the drying process of sludge drier 3, the mud of final formation moisture content less, this mud is sent in fluidized bed incinerator 4 and carries out burning process, combustible in mud is decomposed, form heat, heat is recycled by the cold passage of first-class heat exchanger 11 again, preheater 6 is utilized to absorb the heat of cold passage recovery, then to mud heating, the mud entering fluidized bed incinerator 4 is easily lighted.
Preferably, in order to provide sufficient oxygen, fluidized bed incinerator 4 is communicated with air compressor machine 8.
Preferably, cleaning dust device comprises the Venturi scrubber 17, pallet washer 18, the wet cottrell 19 that are communicated with successively, Venturi scrubber 17 is communicated with the thermal pathways of secondary heat exchanger, also comprise the caustic alkali charging pump 22 being communicated with caustic alkali storehouse 21, caustic alkali charging pump 22 is communicated with wet cottrell 19 with Venturi scrubber 17 simultaneously, the bottom of pallet washer 18 and the bottom of wet cottrell 19 are communicated to ash bucket 23 simultaneously, and the top of wet cottrell 19 is communicated with after burner.
The exhaust gas particle mixture that secondary heat exchanger exports enters into Venturi scrubber 17, pallet washer 18, waste gas and particle washing precipitation is carried out in wet cottrell 19, in this configuration, caustic alkali charging pump 22 is utilized the caustic alkali in caustic alkali storehouse 21 to be blown in Venturi scrubber 17 and wet cottrell 19 sour gas absorbed with waste gas reaction wherein, utilize caustic alkali charging pump 22 pulverous caustic alkali can be distributed to uniformly in Venturi scrubber 17 and wet cottrell 19, sour gas can be absorbed greatly, particle also can be absorbed, too much particle can be adsorbed by wet cottrell 19 simultaneously, finally from the gas that wet cottrell 19 exports, no longer contain sour gas and particle.Effectively sour gas and particle are separated.
The top of wet cottrell 19 is communicated with blower fan 20 of removing contamination.
Separated waste gas enters into after burner and carries out second-time burning process, after burner comprises the burner 14, carbon absorber 15, the chimney 16 that are communicated with successively, burner 14 is communicated with cleaning dust device, the cold channel connection of burner 14 and secondary heat exchanger.Its combustion gas lighted by burner 14, and unburned material in burnt gas, then adsorbs through carbon absorber 15, final toxic emission.
Preferably, also comprise the preheating fan 9, the fluidized air blower 10 that interconnect, fluidized air blower 10 is communicated with the input of first-class heat exchanger 11 cold passage, fluidized air blower 10 is communicated with the output of first-class heat exchanger 11 cold passage, preheating fan 9 is communicated with the output of first-class heat exchanger 11 cold passage, and preheating fan 9 is communicated with fluidized bed incinerator 4.
Embodiment 2
Based on the processing method of above-mentioned fluid bed sludge incinerating system, comprise the steps:
A, sludge drying step: the mud in sludge-tank is by carrying out drying after sludge dewatering equipment, sludge drier;
B, sludge incineration step: the sludge-drying in previous step is sent in fluidized bed incinerator 4 and burns;
C, heat exchange step: the exhaust gas particle mixture that gas outlet, fluidized bed incinerator 4 top exports is input in the thermal pathways of first-class heat exchanger 11, by the thermal pathways of first-class heat exchanger 11 and the heat exchange of cold passage, by the heat absorption of exhaust gas particle mixture, heat disturbance after absorption is in fluidized bed incinerator 4, cooled exhaust gas particle mixture flows in the thermal pathways of lower secondary heat exchanger, by the thermal pathways of secondary heat exchanger and the heat exchange of cold passage, by the heat absorption of exhaust gas particle mixture, heat after absorption flows in after burner,
D, cleaning dust step: be input in cleaning dust device by the exhaust gas particle mixture in secondary heat exchanger thermal pathways, through the cleaning dust process of Venturi scrubber, pallet washer, wet cottrell;
E, second-time burning step: the waste gas that wet cottrell exports is input in after burner and again burns.
In cleaning dust step, the caustic alkali that Venturi scrubber and wet cottrell all will introduce dust formula mixes with exhaust gas particle mixture, absorbs the sour gas in exhaust gas particle mixture.
As mentioned above, then well the utility model can be realized.
Claims (7)
1. fluid bed sludge incinerating system, it is characterized in that: comprise sludge incineration device, two-stage heat-exchanger rig, cleaning dust device, after burner, sludge incineration device comprises fluidized bed incinerator (4), two-stage heat-exchanger rig comprises first-class heat exchanger (11) and secondary heat exchanger, the thermal pathways of first-class heat exchanger (11) is communicated with the gas outlet, top of fluidized bed incinerator (4), the thermal pathways of first-class heat exchanger (11) is also ganged up with the thermal pathways of secondary heat exchanger and is connected, the thermal pathways of secondary heat exchanger is connected with cleaning dust device, cleaning dust device is also connected with after burner, the cold passage of first-class heat exchanger (11) is communicated with fluidized bed incinerator (4), the cold passage of secondary heat exchanger is communicated with after burner.
2. fluid bed sludge incinerating system according to claim 1, it is characterized in that: sludge incineration device also comprises the sludge-tank (1), sludge dewatering equipment (2), the sludge drier (3) that are communicated with successively, fluidized bed incinerator (4) comprises and is communicated with the inner preheater (6) of fluidized bed incinerator (4), preheater (6) is communicated with sludge drier (3), the cold channel connection of preheater (6) and first-class heat exchanger (11), fluidized bed incinerator (4) is also communicated with deposits sand tank (7).
3. fluid bed sludge incinerating system according to claim 2, is characterized in that: fluidized bed incinerator (4) is communicated with air compressor machine (8).
4. fluid bed sludge incinerating system according to claim 1, it is characterized in that: cleaning dust device comprises the Venturi scrubber (17) be communicated with successively, pallet washer (18), wet cottrell (19), Venturi scrubber (17) is communicated with the thermal pathways of secondary heat exchanger, also comprise the caustic alkali charging pump (22) being communicated with caustic alkali storehouse (21), caustic alkali charging pump (22) is communicated with wet cottrell (19) with Venturi scrubber (17) simultaneously, the bottom of pallet washer (18) and the bottom of wet cottrell (19) are communicated to ash bucket (23) simultaneously, the top of wet cottrell (19) is communicated with after burner.
5. fluid bed sludge incinerating system according to claim 4, is characterized in that: the top of wet cottrell (19) is communicated with blower fan of removing contamination (20).
6. fluid bed sludge incinerating system according to claim 1, it is characterized in that: after burner comprises the burner (14), carbon absorber (15), the chimney (16) that are communicated with successively, burner (14) is communicated with cleaning dust device, the cold channel connection of burner (14) and secondary heat exchanger.
7. fluid bed sludge incinerating system according to claim 1, it is characterized in that: also comprise the preheating fan (9), the fluidized air blower (10) that interconnect, fluidized air blower (10) is communicated with the input of first-class heat exchanger (11) cold passage, fluidized air blower (10) is communicated with the output of first-class heat exchanger (11) cold passage, preheating fan (9) is communicated with the output of first-class heat exchanger (11) cold passage, and preheating fan (9) is communicated with fluidized bed incinerator (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420695198.5U CN204227429U (en) | 2014-11-19 | 2014-11-19 | Fluid bed sludge incinerating system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420695198.5U CN204227429U (en) | 2014-11-19 | 2014-11-19 | Fluid bed sludge incinerating system |
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| CN204227429U true CN204227429U (en) | 2015-03-25 |
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| CN201420695198.5U Withdrawn - After Issue CN204227429U (en) | 2014-11-19 | 2014-11-19 | Fluid bed sludge incinerating system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329676A (en) * | 2014-11-19 | 2015-02-04 | 四川高通环保科技股份有限公司 | Fluidized bed sludge incineration system and processing method |
| CN106439843A (en) * | 2016-09-08 | 2017-02-22 | 南京中特化工动力设备有限公司 | Harmless treatment process for unrecyclable wastes in petrochemical industry |
-
2014
- 2014-11-19 CN CN201420695198.5U patent/CN204227429U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329676A (en) * | 2014-11-19 | 2015-02-04 | 四川高通环保科技股份有限公司 | Fluidized bed sludge incineration system and processing method |
| CN106439843A (en) * | 2016-09-08 | 2017-02-22 | 南京中特化工动力设备有限公司 | Harmless treatment process for unrecyclable wastes in petrochemical industry |
| CN106439843B (en) * | 2016-09-08 | 2019-03-12 | 南京中特化工动力设备有限公司 | Petrochemical industry not recovering discarded material harmless treatment process |
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