CN114251670B - Dangerous waste incineration fly ash fused salt and flue gas treatment device - Google Patents
Dangerous waste incineration fly ash fused salt and flue gas treatment device Download PDFInfo
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- CN114251670B CN114251670B CN202111560152.3A CN202111560152A CN114251670B CN 114251670 B CN114251670 B CN 114251670B CN 202111560152 A CN202111560152 A CN 202111560152A CN 114251670 B CN114251670 B CN 114251670B
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 88
- 239000003546 flue gas Substances 0.000 title claims abstract description 88
- 150000003839 salts Chemical class 0.000 title claims abstract description 65
- 239000010881 fly ash Substances 0.000 title claims abstract description 47
- 238000004056 waste incineration Methods 0.000 title claims abstract description 12
- 238000006243 chemical reaction Methods 0.000 claims abstract description 52
- 239000002920 hazardous waste Substances 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 167
- 238000002485 combustion reaction Methods 0.000 claims description 37
- 239000002956 ash Substances 0.000 claims description 24
- 239000007921 spray Substances 0.000 claims description 21
- 238000005192 partition Methods 0.000 claims description 20
- 238000009434 installation Methods 0.000 claims description 18
- 239000000779 smoke Substances 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 9
- 239000002893 slag Substances 0.000 claims description 5
- 238000011049 filling Methods 0.000 claims description 4
- 238000000746 purification Methods 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims 5
- 238000003756 stirring Methods 0.000 abstract description 15
- 239000000376 reactant Substances 0.000 description 28
- 239000007789 gas Substances 0.000 description 12
- 239000012535 impurity Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 230000009471 action Effects 0.000 description 6
- 238000004090 dissolution Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 239000010419 fine particle Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 238000005485 electric heating Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 241000208125 Nicotiana Species 0.000 description 2
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 150000003841 chloride salts Chemical class 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 150000002013 dioxins Chemical class 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
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Classifications
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- 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
-
- 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
- F23G5/46—Recuperation of heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
- F23J15/025—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/04—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24V—COLLECTION, PRODUCTION OR USE OF HEAT NOT OTHERWISE PROVIDED FOR
- F24V30/00—Apparatus or devices using heat produced by exothermal chemical reactions other than combustion
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Combustion & Propulsion (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a hazardous waste incineration fly ash molten salt and a flue gas treatment device, which comprises a reaction tank, a flue gas treatment tank and a flue pipe, wherein a steam turbine is arranged at the upper end of the reaction tank, a steam collecting pipe is arranged at the upper end of the flue gas treatment tank, a first steam booster pump is arranged between the reaction tank and the flue gas treatment tank, a first connecting pipe is connected between a steam inlet of the steam turbine and a steam outlet of the first steam booster pump, a steam outlet of the steam collecting pipe is connected with a steam inlet of the first steam booster pump, the reaction tank is communicated with the flue gas treatment tank through the flue pipe, and the stirring structure in the device is used for uniformly stirring the fly ash molten salt to enable the fly ash molten salt to be fully dissolved and skillfully convert potential heat energy generated by the reaction of the fly ash molten salt into kinetic energy to effectively utilize resources generated by flue gas treatment.
Description
Technical Field
The invention relates to the technical field of treatment of hazardous waste incineration fly ash, in particular to a hazardous waste incineration fly ash molten salt and a flue gas treatment device.
Background
Fly ash generated by incineration of dangerous wastes is rich in heavy metals, dioxins and other pollution dangerous solid wastes, and the fly ash treatment mode generated by incineration of dangerous wastes in China is mainly landfilled by fixed telephones at present. However, the solidified fly ash has obvious problems of capacity increment and weight increment, wastes a large amount of precious land resources, and cannot recycle the resources such as abundant metals in the fly ash.
The prior method for treating the fused salt of the incineration fly ash of the hazardous waste is a novel fly ash treatment technology, the fused salt can enrich and recycle chlorides, sulfates and partial heavy metals in the fly ash, the fused salt after heat treatment can be recycled, and meanwhile, the volume of the fly ash slag is reduced, and the leaching toxicity is further reduced, so that the fused salt can be safely buried or recycled for the field of building materials.
The method for treating the fused salt of the incineration fly ash of the hazardous waste has a plurality of theoretical advantages, but the following problems exist in the practical application process as a new technology: in the fused salt treatment process of the fly ash, because the density of the fly ash is different from that of the fused salt, part of the components of the fly ash cannot be fully dissolved and fused salt is not beneficial to the dissolution and recovery of the components of the fly ash;
the potential heat generated in the reaction process of the fly ash and the molten salt needs to be further recycled, and the gas generated in the reaction process needs to be further processed.
Disclosure of Invention
The invention aims to provide a fused salt of hazardous waste incineration fly ash and a flue gas treatment device, which are used for solving the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme:
the utility model provides a dangerous waste incineration flying ash fused salt and flue gas processing apparatus, this incineration flying ash fused salt and flue gas processing apparatus includes retort, flue gas processing jar, tobacco pipe, the steam turbine is installed to the upper end of retort, the vapor collecting pipe is installed to the upper end of flue gas processing jar, vapor collecting pipe and the inside intercommunication of flue gas processing jar, install first steam booster pump between retort and the flue gas processing jar, be connected with first connecting pipe between the steam inlet of steam turbine and the steam outlet of first steam booster pump, the steam outlet of vapor collecting pipe and the steam inlet pipe connection of first steam booster pump, through tobacco pipe intercommunication between retort and the flue gas processing jar, evenly stir the fused salt through stirring structure in this device, make it fully dissolve to ingenious with the produced potential heat energy conversion of flying ash fused salt reaction to the flying ash, carry out effective recycle to the produced waste water of flue gas processing.
As the preferred technical scheme, one side of retort is provided with and send the salt mouth, send ash mouth is installed to lower extreme one side of retort, send the ash mouth to be provided with the check valve in, because high temperature flue gas upward movement, will send the ash mouth to set up the lower extreme at the retort and make the high temperature flying ash that dangerous waste burns and produce more easily merge into molten salt and dissolve, the outer wall of retort is provided with first water collecting cabin, be provided with the water filling port on the first water collecting cabin, the slag notch is installed to the lower extreme of retort, because the high temperature that flying ash fused salt thermal reaction produced leads to the tank wall temperature of retort to rise thereupon, utilizes the first water collecting cabin that sets up outside the tank wall to absorb heat to high Wen Guanbi to heat the water in the cabin and provide the energy consumption resource for subsequent energy component, utilized the latent heat energy that flying ash fused salt thermal reaction produced.
As the preferable technical proposal, a first baffle plate and a second baffle plate are arranged in the flue gas treatment tank, a second water collecting cabin is formed between the first baffle plate and the flue gas treatment tank, the second water collecting cabin is communicated with a steam inlet pipeline of a steam collecting pipe, the second baffle plate, the first baffle plate and the flue gas treatment tank are mutually matched to form a flue gas combustion chamber, a second water pipe and a combustion supporting device are arranged outside the flue gas treatment tank, a water outlet of the second water pipe is communicated with the second water collecting cabin, the combustion supporting device is communicated with the flue gas combustion chamber, a water pump is arranged at a water inlet of the second water pipe, a first water pipe is arranged at a water pumping port of the water pump, a water inlet of the first water pipe is communicated with the first water collecting cabin, heated water in the first water collecting cabin is pumped by the water pump, the water in the second water collecting cabin is in a high-temperature state, the high temperature is generated by the thermal reaction of the fly ash molten salt in the reaction tank, so that the solution in the fly ash molten salt is vaporized and evaporated, the evaporated solution flows fine harmful particles, impurities and the like which are not fully dissolved on the surface of the molten salt into the flue gas combustion chamber through the flue pipe, the combustion improver is conveyed into the flue gas combustion chamber through the combustion improver, the fine particles, the impurities and the like in the flue gas combustion chamber are subjected to secondary combustion, the water in the second water collecting cabin is heated again by the heat generated by the combustion, so that more hot steam is generated, the hot steam is conveyed to the first steam booster pump through the steam collecting pipe, and is conveyed to the steam turbine through the first connecting pipe after being pressurized by the first steam booster pump, so that the steam turbine is operated, and the steam turbine is operated to drive the shaft rod to rotate.
As preferred technical scheme, the smoke vent has been seted up between second baffle and the flue gas treatment jar tank wall, the water spray barrel is installed to the lower extreme of second baffle, the water jet of water spray barrel is located smoke vent department, the water inlet and the second water pipe intercommunication of water spray barrel, the solenoid valve is installed to the junction of water spray barrel and second water pipe, sprays the exhaust flue gas after the burning through the water spray barrel to intercept the fine particle impurity that is not fully burnt, so that follow-up filter assembly filters the gas after the burning.
As the preferred technical scheme, a plurality of third baffles have been set gradually to the below of water spray barrel, every two are adjacent install a plurality of high-efficient filter screens between the third baffle, the lower extreme of flue gas treatment jar is provided with drain and outlet pipe respectively, the delivery port department of outlet pipe is provided with the third water pipe, the water inlet and the first water pipe intercommunication of third water pipe, and the junction of third water pipe and first water pipe is provided with the second solenoid valve, the outlet flue is installed to one side of flue gas treatment jar, and a plurality of third baffles are intermittent type installation, and the stroke of gas after being cleaned by water smoke increases in the flue gas treatment jar, and a plurality of high-efficient filter screens of cooperation are filtered gas again, and the gas after the filtration is let in subsequent clarification plant by the outlet flue gas and is continued to carry out filtration treatment, and water spray barrel spun water flows in the outlet pipe after a plurality of high-efficient filtration again, and water in the outlet pipe is retrieved by the extraction of water pump again through the third water pipe.
As preferred technical scheme, the ring channel has been seted up to the inner wall of retort, the ring channel is wavy, be provided with the rack in the ring channel, the meshing is connected with the gear on the rack, because flying ash and fused salt density difference lead to both can not fully contact and dissolve, through the wavy rack operation track of setting up, the gear is along with wavy ring channel do regular circulation heave motion, in order to play and drive follow-up stirring subassembly and can carry out diversified uniform mixing to the reactant, in order to improve the dissolution efficiency of reactant, be provided with first universal joint axle on the gear, gear and first universal joint axle fixed connection, be provided with the axostylus axostyle on the output shaft of steam turbine, the axostylus axostyle is located inside the retort, helical blade is installed to the lower part of axostylus axostyle, helical blade surface evenly distributed has a plurality of heating wires, through the last heating wire of helical blade to the reactant of helical blade, make helical blade rotate the fused salt reactant of retort bottom the annular upset upper portion to reach the effect to the reactant, last second universal joint axle and second universal joint axle, second universal joint axle and annular universal joint axle and second universal joint axle are provided with the annular orbit.
As the preferred technical scheme, first connecting block is installed to the one end of first universal joint axle, the second connecting block is installed to the one end of second universal joint axle, install the spring between first connecting block and the second connecting block, the surface of first connecting block and second connecting block is located to the round bar cover, just the inner wall sliding connection of first connecting block and round bar is because the gear is wave fluctuation motion on the rack in the wavy ring channel, through first connecting block, spring, the second connecting block of setting to realize that the gear keeps the meshing with the rack to be connected under the spring concertina effort.
As the preferred technical scheme, the surface mounting of round bar has the mounting tube, the intraductal tube groove of having seted up of mounting, install a plurality of blades on the mounting tube, and a plurality of blades rotate with the mounting tube and be connected, be provided with third connecting pipe and second steam booster pump in the axostylus axostyle, be connected with the second connecting pipe between the steam inlet of third connecting pipe and the steam outlet of steam turbine, the third connecting pipe runs through the second universal joint axle and is connected with the steam inlet of mounting tube, tube groove steam outlet department is provided with the check valve, carries out recycle to the third connecting pipe with steam turbine exhaust steam through the second connecting pipe that sets up, and the boost of letting in second steam booster pump carries out the boost to the tube inslot of mounting tube to promote a plurality of blade operations of mounting tube, fully stir the reactant, and the heat steam circulation heats the pipe wall of mounting tube in addition for the diversified effect of stirring reactant has also played the diversified heating reactant when playing, the steam in the tube inslot is again heated by the check valve exhaust.
As the preferred technical scheme, every two be connected with the pivot between the blade, the pivot runs through the installation tube and extends to both sides, be provided with the guide plate in the tube duct, install the impeller in the pivot, the impeller is located the tube duct of installation tube, and the hot steam in the tube duct promotes a plurality of impellers that are located the tube duct under the effect of guide plate and rotates, and the impeller rotates and drives the pivot and rotate, and the pivot drives the blade again and rotates to carry out more even stirring to the reactant.
As the preferable technical scheme, the inner wall of the reaction tank is provided with a liquid level meter, and the liquid level meter detects the liquid level of molten salt.
Compared with the prior art, the invention has the following beneficial effects:
1. this device utilizes the first water-collecting cabin that sets up outside the tank wall to absorb heat to the height Wen Guanbi to heat the water in the cabin and provide energy consumption resource for subsequent energy component, utilized the produced latent heat energy of flying ash fused salt thermal reaction, through the wavy rack operation track of setting up, the gear is along with the wavy ring channel is regular circulation fluctuation motion, in order to play and drive follow-up stirring subassembly to carry out diversified even stirring to the reactant, in order to improve the dissolution efficiency of reactant.
2. The steam turbine exhaust steam is recycled to the third connecting pipe through the second connecting pipe, the recycled hot steam is pressurized and conveyed to the pipe groove of the installation pipe through the second steam booster pump so as to push the plurality of blades of the installation pipe to operate, the reactant is fully stirred, the pipe wall of the installation pipe is heated through hot steam circulation, the installation pipe is enabled to play a role in heating the reactant while stirring the reactant in multiple directions, and the steam in the pipe groove is discharged through the one-way valve to heat the reactant again.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic diagram of a first perspective structure of a fused salt and flue gas treatment device for incineration fly ash of hazardous waste;
FIG. 2 is a schematic diagram of a second perspective structure of a fused salt and flue gas treatment device for incineration fly ash of hazardous waste;
FIG. 3 is a schematic view of a first perspective cross-sectional structure of a fused salt and flue gas treatment device for incineration fly ash of hazardous waste according to the present invention;
FIG. 4 is a schematic diagram of the enlarged structure of the fused salt and flue gas treatment device for the incineration fly ash of the hazardous waste in FIG. 3A;
FIG. 5 is a schematic view of a second perspective cross-sectional structure of a fused salt and flue gas treatment device for incineration fly ash of hazardous waste according to the present invention;
FIG. 6 is a schematic diagram of the enlarged structure of the fused salt and flue gas treatment device for the incineration fly ash of hazardous waste in FIG. 5B;
FIG. 7 is a third perspective cross-sectional schematic view of a hazardous waste incineration fly ash molten salt and flue gas treatment device of the present invention;
in the figure: 1. a reaction tank; 101. a first water collection tank; 102. a water filling port; 103. a salt feeding port; 104. an ash feeding port; 105. a slag outlet; 106. a liquid level meter; 2. a flue gas treatment tank; 201. a combustion supporting device; 202. a smoke outlet; 203. a sewage outlet; 204. a water outlet pipe; 3. a steam turbine; 301. a shaft lever; 302. a helical blade; 303. a third connection pipe; 304. a second vapor booster pump; 4. a first connection pipe; 5. a first vapor booster pump; 6. a steam collecting pipe; 7. a smoke tube; 8. a first water pipe; 9. a second water pipe; 901. an electromagnetic valve; 902. a water spray gun barrel; 10. a third water pipe; 11. a water pump; 12. a second connection pipe; 13. a first separator; 14. a second separator; 15. a third separator; 16. a high-efficiency filter screen; 17. a rack; 18. a round bar; 181. a first connection block; 182. a spring; 183. a second connection block; 19. a first universal joint shaft; 20. a second universal joint shaft; 21. a gear; 22. installing a pipe; 23. and (3) a blade.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described 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 be within the scope of the invention.
Referring to fig. 1-7, the present invention provides the following technical solutions:
the device for incinerating the molten ash and the flue gas comprises a reaction tank 1, a flue gas treatment tank 2 and a flue pipe 7, wherein a steam turbine 3 is arranged at the upper end of the reaction tank 1, a steam collecting pipe 6 is arranged at the upper end of the flue gas treatment tank 2, the steam collecting pipe 6 is communicated with the interior of the flue gas treatment tank 2, a first steam booster pump 5 is arranged between the reaction tank 1 and the flue gas treatment tank 2, a first connecting pipe 4 is connected between a steam inlet of the steam turbine 3 and a steam outlet of the first steam booster pump 5, a steam outlet of the steam collecting pipe 6 is connected with a steam inlet pipeline of the first steam booster pump 5, the reaction tank 1 is communicated with the flue gas treatment tank 2 through the flue pipe 7, flue gas generated by the molten ash in the reaction tank 1 is introduced into the flue gas treatment tank 2 for purification treatment, the molten ash is uniformly stirred through a stirring structure in the device, so that the molten ash is fully dissolved, potential heat generated by the molten ash reaction is converted into kinetic energy, and waste water generated by the flue gas treatment is effectively recycled.
Referring to fig. 1-3 specifically, a salt feeding port 103 is arranged on one side of a reaction tank 1, an ash feeding port 104 is arranged on one side of the lower end of the reaction tank 1, a one-way valve is arranged in the ash feeding port 104, and high-temperature flue gas moves upwards, so that high-temperature fly ash generated by burning hazardous waste is more easily dissolved into molten salt, a first water collecting cabin 101 is arranged on the outer wall of the reaction tank 1, a water filling port 102 is arranged on the first water collecting cabin 101, a slag outlet 105 is arranged at the lower end of the reaction tank 1, a liquid level meter 106 is arranged on the inner wall of the reaction tank 1, the liquid level meter 106 detects the liquid level of molten salt, and the high-temperature flue gas generated by the thermal reaction of the fly ash causes the temperature of the tank 1 to rise along with the rise, so that the first water collecting cabin 101 arranged outside the tank wall absorbs heat, water in the cabin is heated to provide energy consumption resources for subsequent energy components, and potential heat energy generated by the thermal reaction of the fly ash molten salt is utilized.
Referring to fig. 1-3 specifically, a first partition 13 and a second partition 14 are disposed in a flue gas treatment tank 2, a second water collecting chamber is formed between the first partition 13 and the flue gas treatment tank 2, the first partition 13 is connected between the second water collecting chamber and the flue gas combustion chamber, the second water collecting chamber is communicated with a steam inlet pipeline of a steam collecting pipe 6, the second partition 14, the first partition 13 and the flue gas treatment tank 2 are mutually matched to form a flue gas combustion chamber, a second water pipe 9 and a combustion supporting device 201 are disposed outside the flue gas treatment tank 2, a water outlet of the second water pipe 9 is communicated with the second water collecting chamber, the combustion supporting device 201 is communicated with the flue gas combustion chamber, a water pump 11 is mounted at a water inlet of the second water pipe 9, a first water pipe 8 is mounted at a water pumping port of the water pump 11, a water inlet of the first water pipe 8 is communicated with the first water collecting chamber 101, heated water in the first water collecting chamber 101 is pumped through the water pump 11, and the molten salt is conveyed to a second water collecting cabin 13, at the moment, the second water collecting cabin is also in a high-temperature state, as the molten salt thermal reaction of the fly ash in the reaction tank 1 generates high temperature, the high temperature causes vaporization and evaporation of solution in the molten salt of the fly ash, the evaporated solution flows fine harmful particles, impurities and the like which are not fully dissolved on the surface of the molten salt into a flue gas combustion chamber through a smoke pipe 7, combustion improver is conveyed into the flue gas combustion chamber through a combustion improver 201 to enable fine particles, impurities and the like in the flue gas combustion chamber to be subjected to secondary combustion, water in the second water collecting cabin is reheated by heat generated by combustion so as to generate more hot steam, the hot steam is conveyed to a first steam booster pump 5 through a steam collecting pipe 6, and is conveyed to a steam turbine 3 through a first connecting pipe 4 after being pressurized, so that the steam turbine 3 runs, and a shaft 301 is driven to rotate by the operation of the steam turbine 3.
Referring to fig. 1-2 and 7 specifically, a second partition 14 is disposed at the lower end of the flue gas combustion chamber, a smoke vent is disposed between the second partition 14 and the wall of the flue gas treatment tank 2, a water spray gun barrel 902 is mounted at the lower end of the second partition 14, the water spray nozzle of the water spray gun barrel 902 is located at the smoke vent, a water inlet of the water spray gun barrel 902 is communicated with the second water pipe 9, an electromagnetic valve 901 is mounted at the joint of the water spray gun barrel 902 and the second water pipe 9, and exhaust flue gas after combustion is sprayed through the water spray gun barrel 902 so as to intercept fine particle impurities which are not fully combusted, so that a subsequent filtering component filters the gas impurities after combustion treatment.
Referring to fig. 1-3 specifically, a plurality of partition boards third 15 are sequentially arranged below the water spray gun barrel 902, a plurality of efficient filter screens 16 are installed between every two adjacent third partition boards 15, a drain outlet 203 and a water outlet 204 are respectively arranged at the lower end of the flue gas treatment tank 2, a third water pipe 10 is arranged at the water outlet of the water outlet 204, the water inlet of the third water pipe 10 is communicated with the first water pipe 8, a second electromagnetic valve is arranged at the joint of the third water pipe 10 and the first water pipe 8, a flue outlet 202 is installed at one side of the flue gas treatment tank 2, the plurality of third partition boards 15 are installed intermittently, the travel of the gas cleaned by water mist in the flue gas treatment tank 2 is increased, the gas is filtered by the plurality of efficient filter screens 16, the filtered gas is introduced into subsequent purification equipment through the flue outlet 202, the water sprayed by the water spray gun barrel 902 is filtered by the plurality of efficient filter screens 16 and flows into the water outlet 204, and the water in the water outlet 204 is extracted and reused by the water pump 11 through the third water pipe 10.
Referring to fig. 3-4 specifically, an annular groove is formed in the inner wall of the reaction tank 1, the annular groove is in a wavy shape, a rack 17 is arranged in the annular groove, a gear 21 is connected to the rack 17 in a meshed manner, as fly ash and molten salt density difference cause insufficient contact dissolution, through the arranged wavy rack 17 running track, the gear 21 makes regular cyclic fluctuation motion along with the wavy annular groove so as to drive a subsequent stirring assembly to uniformly stir reactants in multiple directions, so that the dissolution efficiency of the reactants is improved, a first universal joint shaft 19 is arranged on the gear 21, the gear 21 is fixedly connected with the first universal joint shaft 19, a shaft rod 301 is arranged on an output shaft of the steam turbine 3, the shaft rod 301 is positioned in the reaction tank 1, a spiral blade 302 is arranged at the lower part of the shaft rod 301, a plurality of electric heating wires are uniformly distributed on the surface of the spiral blade 302, reactants in the reaction tank 1 are heated through electric heating wires on the spiral blade 302, and the spiral blade 302 is driven to rotate so that the spiral blade 302 circularly overturns the fly ash reactants at the bottom of the reaction tank 1 to the upper part so as to achieve the effect of uniformly heating the reactants;
the second universal joint shaft 20 is installed on the shaft rod 301, the shaft rod 301 is rotationally connected with the second universal joint shaft 20, the round rod 18 is arranged between the first universal joint shaft 19 and the second universal joint shaft 20, and the round rod 18 can flexibly run along with the annular wavy running track through the first universal joint shaft 19 and the second universal joint shaft 20.
Referring to fig. 6 specifically, a first connecting block 181 is installed at one end of a first universal joint shaft 19, a second connecting block 183 is installed at one end of a second universal joint shaft 20, a spring 182 is installed between the first connecting block 181 and the second connecting block 183, a round rod 18 is sleeved on the surfaces of the first connecting block 181 and the second connecting block 183, and the first connecting block 181 is slidably connected with the inner wall of the round rod 18, and as the gear 21 moves in a wave-like and wave manner on the rack 17 in the wave-like annular groove, the gear 21 is in meshed connection with the rack 17 under the expansion and contraction action of the spring 182 through the first connecting block 181, the spring 182 and the second connecting block 183.
Referring to fig. 4-6 specifically, an installation tube 22 is installed on the outer surface of the round rod 18, a tube slot is formed in the installation tube 22, a plurality of blades 23 are installed on the installation tube 22, the blades 23 are rotationally connected with the installation tube 22, a rotating shaft is connected between every two blades 23, the rotating shaft penetrates through the installation tube 22 and extends to two sides, a guide plate is arranged in the tube slot, an impeller is installed on the rotating shaft, the impeller is located in the tube slot of the installation tube 22, hot steam in the tube slot pushes a plurality of impellers located in the tube slot to rotate under the action of the guide plate, the impeller drives the rotating shaft to rotate, and the rotating shaft drives the blades to rotate, so that reactants are stirred more uniformly;
the third connecting pipe 303 and the second steam booster pump 304 are arranged in the shaft rod 301, the second connecting pipe 12 is connected between the steam inlet of the third connecting pipe 303 and the steam outlet of the steam turbine 3, the third connecting pipe 303 penetrates through the second universal joint shaft 20 and is connected with the steam inlet of the mounting pipe 22, the one-way valve is arranged at the steam outlet of the pipe groove, the steam exhausted by the steam turbine 3 is recycled to the third connecting pipe 303 through the arranged second connecting pipe 12, the recycled hot steam is pressurized and conveyed into the pipe groove of the mounting pipe 22 by the second steam booster pump 304 so as to push the plurality of blades 23 of the mounting pipe 22 to operate, the reactant is fully stirred, the pipe wall of the mounting pipe 22 is heated by the hot steam circulation, the reactant is heated by the mounting pipe 22 while being stirred in multiple directions, and the reactant is heated again by the multi-way valve.
The working principle of the invention is as follows: firstly, adding a proper amount of industrial salt into a reaction tank 1, heating the industrial salt in the tank by an electric heating wire on a spiral blade 302 through a PLC controller, then adding water into a first water collecting cabin 101 through a water injection port 102, when the solid industrial salt is heated to a molten salt state, introducing fly ash into the bottom of the molten salt through an ash feeding port 104 at the moment, as the high temperature generated by the thermal reaction of the fly ash molten salt causes the temperature of the tank wall of the reaction tank 1 to rise along with the rise, absorbing heat generated by the reaction by utilizing the first water collecting cabin 101 arranged outside the tank wall and heating water, extracting the water heated in the first water collecting cabin 101 through a water pump 11, conveying the water to a second water collecting cabin, at the moment, wherein the water in the second water collecting cabin is also in a high temperature state, and the high temperature state, as the molten salt in the reaction tank 1 generates high temperature, leading solution in the fly ash to be vaporized and evaporated, enabling fine harmful particles, impurities and the like which are not fully dissolved on the surface of the molten salt to flow into a combustion chamber through a combustion chamber 7, conveying a combustion improver into the combustion chamber through a combustion supporting device 201, enabling the combustion chamber to absorb heat generated by the reaction to generate a plurality of fine particles, and then conveying the heat to a steam turbine 3 through a first connecting pipe 3, and a steam turbine 4 is driven by a steam turbine 4 to rotate through a second heat collecting pipe, and a steam turbine 3 is further heated by a steam turbine, and a steam turbine 3 is driven by a steam turbine 4;
through the rack 17 arranged on the wavy annular groove, when the steam turbine 3 drives the shaft rod 301 to rotate, the shaft rod 301 drives the second universal joint shaft 20, the second universal joint shaft 20 drives the round rod 18, the round rod 18 drives the first universal joint shaft 19, the first universal joint shaft 19 drives the gear 21 to rotate, at the moment, the gear 21 regularly and circularly fluctuates along with the wavy annular groove, the gear 21 drives the round rod 18 to rotate, the round rod 18 drives the mounting tube 22 to rotate, and the fly ash and molten salt are uniformly stirred in multiple directions, so that the dissolution efficiency of the fly ash and the molten salt is improved;
the steam exhausted by the steam turbine 3 is recycled to the third connecting pipe 303 through the arranged second connecting pipe 12, the recycled hot steam is pressurized and conveyed to the pipe groove of the installation pipe 22 through the second steam booster pump 304, the hot steam in the pipe groove pushes a plurality of impellers in the pipe groove to rotate under the action of the guide plate, the impellers rotate to drive the rotating shaft to rotate, the rotating shaft drives the blades to rotate, so that reactants are uniformly stirred, the pipe wall of the installation pipe 22 is heated through hot steam circulation, the installation pipe 22 plays a multidirectional reactant stirring effect and a multidirectional reactant heating effect, and the steam in the pipe groove is discharged through the one-way valve to heat the reactants again;
the smoke after burning is atomized through the water spray gun barrel 902, the travel of the gas after being cleaned by water mist in the smoke treatment tank 2 is increased by the third partition plates 15 which are installed in an intermittent mode, the gas is filtered by the high-efficiency filter screens 16, the filtered gas is introduced into subsequent purification equipment through a smoke outlet to continue to be filtered, water sprayed by the water spray gun barrel 902 flows into the water outlet pipe 204 after being filtered by the high-efficiency filter screens 16, and the water in the water outlet pipe 204 is extracted by the water pump 11 again through the third water pipe 10 for recycling.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a dangerous waste incineration flying ash fused salt and flue gas processing apparatus which characterized in that: the device comprises a reaction tank (1), a flue gas treatment tank (2) and a flue pipe (7), wherein a steam turbine (3) is arranged at the upper end of the reaction tank (1), a steam collecting pipe (6) is arranged at the upper end of the flue gas treatment tank (2), the steam collecting pipe (6) is communicated with the inside of the flue gas treatment tank (2), a first steam booster pump (5) is arranged between the reaction tank (1) and the flue gas treatment tank (2), a first connecting pipe (4) is connected between a steam inlet of the steam turbine (3) and a steam outlet of the first steam booster pump (5), a steam outlet of the steam collecting pipe (6) is connected with a steam inlet pipeline of the first steam booster pump (5), the reaction tank (1) is communicated with the flue gas treatment tank (2) through the flue pipe (7), and flue gas generated by the flue gas in the flue gas treatment tank (1) is introduced into the flue gas treatment tank (2) for purification treatment;
one side of the reaction tank (1) is provided with a salt feeding port (103), one side of the lower end of the reaction tank (1) is provided with an ash feeding port (104), a one-way valve is arranged in the ash feeding port (104), the outer wall of the reaction tank (1) is provided with a first water collecting cabin (101), the first water collecting cabin (101) is provided with a water filling port (102), and the lower end of the reaction tank (1) is provided with a slag outlet (105);
the flue gas treatment tank (2) is internally provided with a first partition plate (13) and a second partition plate (14), a second water collecting cabin is formed between the first partition plate (13) and the flue gas treatment tank (2), the second water collecting cabin is communicated with a steam inlet pipeline of a steam collecting pipe (6), the second partition plate (14), the first partition plate (13) and the flue gas treatment tank (2) are mutually matched to form a flue gas combustion chamber, a second water pipe (9) and a combustion supporting device (201) are arranged outside the flue gas treatment tank (2), a water outlet of the second water pipe (9) is communicated with the second water collecting cabin, the combustion supporting device (201) is communicated with the flue gas combustion chamber, a water pump (11) is arranged at a water inlet of the second water pipe (9), a first water pipe (8) is arranged at a water pumping port of the water pump (11), and a water inlet of the first water pipe (8) is communicated with the first water collecting cabin (101);
an annular groove is formed in the inner wall of the reaction tank (1), the annular groove is wavy, a rack (17) is arranged in the annular groove, a gear (21) is connected to the rack (17) in a meshed mode, a first universal joint shaft (19) is arranged on the gear (21), a shaft rod (301) is arranged on an output shaft of the steam turbine (3), the shaft rod (301) is located inside the reaction tank (1), a helical blade (302) is arranged at the lower portion of the shaft rod (301), a plurality of heating wires are uniformly distributed on the surface of the helical blade (302), a second universal joint shaft (20) is arranged on the shaft rod (301), and a round rod (18) is arranged between the first universal joint shaft (19) and the second universal joint shaft (20);
a first connecting block (181) is arranged at one end of the first universal joint shaft (19), a second connecting block (183) is arranged at one end of the second universal joint shaft (20), a spring (182) is arranged between the first connecting block (181) and the second connecting block (183), the round rod (18) is sleeved on the surfaces of the first connecting block (181) and the second connecting block (183), and the first connecting block (181) stretches and slides in the round rod (18);
the steam turbine is characterized in that a mounting pipe (22) is mounted on the outer surface of the round rod (18), a pipe groove is formed in the mounting pipe (22), a plurality of blades (23) are mounted on the mounting pipe (22), the blades (23) are rotationally connected with the mounting pipe (22), a third connecting pipe (303) and a second steam booster pump (304) are arranged in the shaft rod (301), a second connecting pipe (12) is connected between a steam inlet of the third connecting pipe (303) and a steam outlet of the steam turbine (3), the third connecting pipe (303) penetrates through a second universal joint shaft (20) and is connected with the steam inlet of the mounting pipe (22), and a one-way valve is arranged at the steam outlet of the pipe groove;
every two be connected with the pivot between blade (23), the pivot runs through installation tube (22) and extends to both sides, be provided with the guide plate in the tube duct, install the impeller in the pivot, the impeller is located the tube duct of installation tube (22), the guide plate is located one side of impeller.
2. The hazardous waste incineration fly ash molten salt and flue gas treatment device according to claim 1, which is characterized in that: the smoke vent is arranged between the second partition plate (14) and the tank wall of the smoke treatment tank (2), the water spraying gun barrel (902) is arranged at the lower end of the second partition plate (14), the water spraying port of the water spraying gun barrel (902) is located at the smoke vent, the water inlet of the water spraying gun barrel (902) is communicated with the second water pipe (9), and the electromagnetic valve (901) is arranged at the joint of the water spraying gun barrel (902) and the second water pipe (9).
3. The hazardous waste incineration fly ash molten salt and flue gas treatment device according to claim 2, which is characterized in that: the utility model discloses a smoke treatment tank, including water spray barrel (902), smoke treatment tank (2), drain (203) and outlet pipe (204), the below of water spray barrel (902) has set gradually a plurality of third baffle (15), every two are adjacent install a plurality of high-efficient filter screens (16) between third baffle (15), the lower extreme of smoke treatment tank (2) is provided with drain (203) and outlet pipe (204) respectively, the delivery port department of outlet pipe (204) is provided with third water pipe (10), the water inlet and the first water pipe (8) intercommunication of third water pipe (10), and the junction of third water pipe (10) and first water pipe (8) is provided with the second solenoid valve, outlet (202) are installed to one side of smoke treatment tank (2).
4. The hazardous waste incineration fly ash molten salt and flue gas treatment device according to claim 1, which is characterized in that: the inner wall of the reaction tank (1) is provided with a liquid level meter (106), and the liquid level meter (106) detects the liquid level of molten salt.
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| CN202111560152.3A CN114251670B (en) | 2021-12-20 | 2021-12-20 | Dangerous waste incineration fly ash fused salt and flue gas treatment device |
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| CN202111560152.3A CN114251670B (en) | 2021-12-20 | 2021-12-20 | Dangerous waste incineration fly ash fused salt and flue gas treatment device |
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| CN114251670B true CN114251670B (en) | 2023-06-27 |
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| CN116748263B (en) * | 2023-06-06 | 2024-01-23 | 中节能兆盛环保有限公司 | Continuous mixing and solidifying device for fly ash of garbage incinerator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| FR2696955B1 (en) * | 1992-10-15 | 1994-12-02 | Lab Sa | Processes for the treatment of combustion residues and the purification of combustion fumes. |
| CN105198129A (en) * | 2015-11-09 | 2015-12-30 | 浙江工业大学 | Synergic treatment method of heavy metals in hazardous waste incineration plant wastewater and fly ash |
| CN106964628A (en) * | 2017-02-15 | 2017-07-21 | 长安大学 | A kind of incineration of refuse flyash harmless disposal method |
| CN107931301B (en) * | 2017-10-11 | 2019-07-19 | 华中科技大学 | A kind of incineration of refuse flyash fused salt heat treatment system |
| CN108721824B (en) * | 2018-05-22 | 2020-08-11 | 重庆大学 | Method for synchronously stabilizing heavy metals and degrading polycyclic aromatic hydrocarbons by using waste incineration fly ash |
| CN110550841A (en) * | 2019-09-26 | 2019-12-10 | 浙江富春江环保热电股份有限公司 | flue gas deep denitration system and method in sludge drying-incineration system |
| CN111692601B (en) * | 2020-06-15 | 2022-04-01 | 浙江伊诺环保科技股份有限公司 | Fly ash treatment system |
| CN111780137A (en) * | 2020-07-16 | 2020-10-16 | 新乡市烛龙微电子技术有限公司 | Industrial waste gas purification system capable of performing self-inspection and self-inspection method |
| CN112501430B (en) * | 2020-12-10 | 2022-07-22 | 日照泰东环保科技有限公司 | Recovery device for dedusting ash and use method thereof |
| CN112807968A (en) * | 2020-12-23 | 2021-05-18 | 信和（天津）环保科技发展有限公司 | Harmless treatment device for industrial solid waste |
| CN113623033A (en) * | 2021-09-15 | 2021-11-09 | 中国华能集团清洁能源技术研究院有限公司 | IGCC system adopting air gasification and working method thereof |
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Address after: 5 / F, 277 Huqingping Road, Minhang District, Shanghai, 201105 Patentee after: Shanghai Yude Environmental Protection Co.,Ltd. Address before: 200331 room 1355, building 3, No. 215, Yumen Road, Putuo District, Shanghai Patentee before: SHANGHAI YUDE ENVIRONMENT PROTECTION ENGINEERING Co.,Ltd. |
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