CN116785862A - Treatment device for waste gas generated in rare earth preparation by rare earth fluoride electrolysis and use method - Google Patents
Treatment device for waste gas generated in rare earth preparation by rare earth fluoride electrolysis and use method Download PDFInfo
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- CN116785862A CN116785862A CN202210773316.9A CN202210773316A CN116785862A CN 116785862 A CN116785862 A CN 116785862A CN 202210773316 A CN202210773316 A CN 202210773316A CN 116785862 A CN116785862 A CN 116785862A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/88—Replacing filter elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0407—Constructional details of adsorbing systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/68—Halogens or halogen compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/20—Halogens or halogen compounds
- B01D2257/202—Single element halogens
- B01D2257/2027—Fluorine
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/025—Other waste gases from metallurgy plants
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Abstract
The invention provides a treatment device for waste gas generated by preparing rare earth through electrolysis of rare earth fluoride and a use method thereof, belonging to the technical field of waste gas treatment devices. The treatment device for waste gas generated by preparing rare earth through electrolysis of rare earth fluoride comprises a dust removal assembly, wherein the dust removal assembly comprises a mounting frame, a dust remover and an air inlet pipe, the dust remover is arranged on the mounting frame, and the air inlet pipe is communicated with the dust remover; the filter assembly comprises an installation box, a driving piece, a moving box and a filter body, wherein the installation box is fixed on the installation frame, the dust remover is communicated with the installation box, the driving piece is fixed on one side of the installation box, the moving box is fixed on the output end of the driving piece, the moving box is arranged in the installation box, and the filter body is arranged in the moving box. The filtering device can filter solid particles and peculiar smell in waste gas, and the filter body is convenient and quick to replace, so that the working efficiency is greatly improved.
Description
Technical Field
The invention relates to the technical field of waste gas treatment devices, in particular to a treatment device for waste gas generated by rare earth fluoride electrolysis.
Background
Early rare earth production methods were mainly chloride electrolysis methods, but the methods have promoted the tremendous development of fluoride system electrolysis methods due to the lower current efficiency and the serious environmental pollution of chlorine.
In the process of preparing rare earth by utilizing rare earth fluoride electrolysis, a large amount of waste gas is generated, the waste gas contains a lot of solid particles, peculiar smell gas and fluorine gas, and the waste gas is directly discharged to the outside to cause environmental pollution, so that the waste gas needs to be treated, and the existing waste gas treatment is mostly realized by simple filtration, so that the waste gas treatment is not thorough and the environment is damaged.
Disclosure of Invention
In order to make up for the defects, the invention provides a treatment device for waste gas generated by preparing rare earth through electrolysis of rare earth fluoride, and aims to solve the problems that the existing waste gas treatment is mostly simple in filtration, the waste gas treatment is not thorough, and the environment is damaged.
The invention is realized in the following way: the invention provides a treatment device for waste gas generated by preparing rare earth through electrolysis of rare earth fluoride, which comprises a dust removal assembly, wherein the dust removal assembly comprises a mounting frame, a dust remover and an air inlet pipe, the dust remover is arranged on the mounting frame, and the air inlet pipe is communicated with the dust remover;
the filter assembly comprises an installation box, a driving piece, a moving box and a filter body, wherein the installation box is fixedly installed on the installation frame, the dust remover is communicated with the installation box, the driving piece is fixedly installed on one side of the installation box, the moving box is fixedly installed at the output end of the driving piece, the moving box is arranged in the installation box, and the filter body is arranged in the moving box.
In one embodiment of the invention, handles are fixed on two sides of the movable box.
In one embodiment of the invention, the fluorine removing device further comprises a fluorine removing component, wherein the fluorine removing component comprises a fan, a connecting pipe, a fluorine removing part, a spray header and a discharging pipe, the fan is fixedly arranged on a mounting frame, an air inlet of the fan is communicated with the bottom of the mounting box, an air outlet of the fan is communicated with one end of the connecting pipe, the other end of the connecting pipe is communicated with the upper end of the fluorine removing part, the discharging pipe is communicated with the lower end of the fluorine removing part, and a plurality of spray headers are arranged on the fluorine removing part.
In one embodiment of the present invention, the fluorine removal section is a spiral pipe.
In one embodiment of the invention, an isolation cover is arranged outside the defluorination part and is fixedly arranged on the mounting frame
In one embodiment of the present invention, the driving member is an electric push rod.
In one embodiment of the invention, the recycling assembly further comprises a recycling assembly, the recycling assembly comprises a settling tank, a motor, a screw rod, a fixing plate and a pushing plate, the settling tank is communicated with the discharging pipe, the motor is fixedly arranged on the outer side of one end of the settling tank, one end of the screw rod is fixedly arranged on an output shaft of the motor, the other end of the screw rod is rotatably arranged on the fixing plate, the fixing plate is fixedly arranged in one end, far away from the motor, of the settling tank, the pushing plate is in transmission connection with the screw rod, and the pushing plate is arranged in the settling tank.
In one embodiment of the invention, the two sides of the pushing plate are fixed with sliding blocks, the inner walls of the two sides of the settling tank are provided with sliding grooves matched with the sliding blocks, and the sliding blocks slide in the sliding grooves.
In one embodiment of the invention, a door is hinged to one end of the settling tank, which is far away from the motor, and the door can realize the opening and closing of the settling tank.
The invention also provides a use method of the treatment device for waste gas generated by preparing rare earth through electrolysis of rare earth fluoride, which comprises the following steps:
s1, firstly, the generated waste gas enters a dust remover through an air inlet pipe, and the dust remover removes a large amount of solid particles and dust in the waste gas to realize first treatment;
s2, enabling the waste gas to enter the installation box from the outlet of the dust remover, enabling the waste gas to enter the filter body in the movable box from the installation box, and enabling the filter body to adsorb fixed particles which are not absorbed by the dust remover in the gas and also enable the waste gas to be subjected to second treatment by some peculiar smell gas;
s3, when the filter body in the movable box needs to be replaced, the driving piece starts to push the movable box out of the installation box, the movable box is further pulled out of the installation box, then the movable box is lifted out of the installation box through the handle, the old filter body is taken out of the movable box, then a new filter body is replaced, then the movable box is placed into the movable box through the handle, then a piston rod of the driving piece is retracted to the original position, and further the movable box is driven to return to the installation box, so that the replacement of the filter body is realized;
s4, conveying the waste gas to a connecting pipe through a fan, then entering an inlet of a fluorine removal part through the connecting pipe, enabling the waste gas to drift and flow in the fluorine removal part, spraying atomized liquid through a spray header on the fluorine removal part, and fully fusing and reacting the atomized liquid with fluorine gas in the waste gas to generate new fluoride, so that the fluorine gas is treated;
s5, fluoride and atomized liquid generated by the reaction enter the settling tank through the discharging pipe, after the generated fluoride is settled to the bottom, the liquid in the settling tank is discharged, then the door at the opening of the settling tank is opened, then the motor is started, the motor drives the screw rod to rotate, the screw rod drives the pushing plate to move from one side of the settling tank to the discharging hole, the pushing plate withdraws the fluoride settled at the bottom of the settling tank from the settling tank, and then the fluoride is recycled, so that the whole process is finished.
The treatment device for the waste gas generated by preparing rare earth through the electrolysis of the rare earth fluoride, which is obtained through the design, has the beneficial effects compared with the prior art that:
1. the waste gas generated by electrolysis enters a dust remover through an air inlet pipe, and the dust remover removes a large amount of solid particles and dust in the waste gas to realize first treatment; then the waste gas enters the installation box from the outlet of the dust remover, then enters the filter body in the movable box from the installation box, and the filter body adsorbs fixed particles which are not absorbed by the dust remover in the gas and also adsorbs some peculiar smell gas, so that the second treatment of the waste gas is realized; when the filter body in the movable box needs to be replaced, the driving part starts to push the movable box out of the mounting box, then the movable box is lifted out of the mounting box through the handle, then the old filter body is taken out of the movable box, then a new filter body is replaced, then the movable box is placed in the movable box through the handle, then the piston rod of the driving part is retracted to the original position, and then the movable box is driven to return to the mounting box, so that the quick replacement of the filter body is realized, the filtration of solid particles and peculiar smell in waste gas is realized, and the filter body is convenient and quick to replace, and the working efficiency is greatly improved;
2. the filtered waste gas is conveyed to the connecting pipe through the fan, then enters the inlet of the fluorine removing part through the connecting pipe, then the waste gas flows in a drifting way in the fluorine removing part, at the moment, the spray head on the fluorine removing part sprays atomized liquid, and the atomized liquid and fluorine gas in the waste gas are fully fused and reacted to generate new fluoride, so that the treatment of the fluorine gas is realized, and the fluorine gas is prevented from being discharged into the external environment;
3. fluoride and atomized liquid generated by the reaction enter a settling tank through a discharge pipe, after the generated fluoride is settled to the bottom, liquid in the settling tank is discharged, then a door at the opening of the settling tank is opened, then a motor is started, the motor drives a screw rod to rotate, then the screw rod drives a pushing plate to move from one side of the settling tank to a discharge hole, and then the pushing plate withdraws the fluoride settled at the bottom of the settling tank from the settling tank, and then the fluoride is recycled.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the whole device structure according to the embodiment of the present invention;
fig. 2 is a schematic perspective view of an apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic view of a filter assembly according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an explosion structure of a mounting box and a moving box according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a defluorination assembly according to an embodiment of the present invention;
FIG. 6 is a schematic view of a recycling assembly according to an embodiment of the present invention;
FIG. 7 is an enlarged view at A of FIG. 6;
fig. 8 is a schematic diagram of a pushing plate structure according to an embodiment of the present invention.
In the figure: 100. a dust removal assembly; 110. a mounting frame; 111. an isolation cover; 120. a dust remover; 130. an air inlet pipe;
200. a filter assembly; 210. a mounting box; 220. a driving member; 230. a moving case; 231. a handle; 240. a filter body;
300. a fluorine removal assembly; 310. a blower; 320. a connecting pipe; 330. a fluorine removal section; 340. a spray header; 350. a discharge pipe;
400. a recovery assembly; 410. a sedimentation tank; 411. a chute; 412. a door; 420. a motor; 430. a screw rod; 440. a fixing plate; 450. a pushing plate; 451. a sliding block.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
Examples
Referring to fig. 1, 2 and 3, the present invention provides a treatment device for waste gas generated by rare earth fluoride electrolysis, which comprises a dust removal assembly 100, wherein the dust removal assembly 100 comprises a mounting frame 110, a dust remover 120 and an air inlet pipe 130, the dust remover 120 is arranged on the mounting frame 110, and the air inlet pipe 130 is communicated with the dust remover 120; the filter assembly 200, the filter assembly 200 includes an installation box 210, a driving piece 220, a moving box 230 and a filter body 240, the installation box 210 is fixedly installed on the installation frame 110, the dust remover 120 is communicated with the installation box 210, the dust remover 120 can be a bag dust remover, the driving piece 220 is fixedly installed on one side of the installation box 210 through bolts, specifically, the driving piece 220 is an electric push rod, the moving box 230 is fixedly installed on the end part of a piston rod of the driving piece 220, the moving box 230 is arranged in the installation box 210, and the filter body 240 is arranged in the moving box 230. The filter body 240 has glass fiber and activated carbon therein, the glass fiber filters fine particles, and the activated carbon absorbs odor. Further, handles 231 (shown in fig. 4) are fixed to both sides of the moving case 230 by welding; when the filter body 240 in the movable case 230 needs to be replaced, the driving member 220 starts to push the movable case 230 out of the installation case 210, so that the movable case 230 comes out of the installation case 210, then the movable case 230 is lifted out of the installation case 210 through the handle 231, then the old filter body 240 is taken out of the movable case 230, then a new filter body 240 is replaced, then the movable case 230 is placed in the movable case 230 through the handle 231, then the piston rod of the driving member 220 is retracted to the original position, and the movable case 230 is driven to return to the installation case 210, so that replacement of the filter body 240 is realized.
Referring to fig. 1 and 5, in an embodiment of the present invention, the fluorine removing assembly 300 further includes a fluorine removing assembly 300, the fluorine removing assembly 300 includes a blower 310, a connecting pipe 320, a fluorine removing portion 330, a spray header 340 and a discharging pipe 350, the blower 310 is fixedly installed at the bottom end of the installation frame 110 through a bolt, an air inlet of the blower 310 is communicated with the bottom of the installation box 210, an air outlet of the blower 310 is communicated with one end of the connecting pipe 320, the other end of the connecting pipe 320 is communicated with the upper end of the fluorine removing portion 330, the discharging pipe 350 is communicated with the lower end of the fluorine removing portion 330, a plurality of spray headers 340 are disposed on the fluorine removing portion 330, a liquid sprayed by the spray headers 340 may use a lithium bicarbonate solution as a fluorine gas absorbent, the fluorine gas and the lithium bicarbonate solution are in contact reaction to generate a lithium fluoride solution, specifically, the fluorine removing portion 330 is a spiral pipeline (as shown in fig. 5), the volume in the same space of the fluorine removing portion 330 is increased, and the fluorine gas and the liquid are fully mixed and reacted; preferably, an isolation cover 111 (as shown in fig. 2) is provided outside the fluorine removal section 330, and the isolation cover 111 is fixedly mounted to the mounting bracket 110 by bolts.
Referring to fig. 1, 2 and 6, in addition, in an embodiment of the present invention, the recycling assembly 400 further includes a recycling assembly 400, the recycling assembly 400 includes a settling tank 410, a motor 420, a screw rod 430, a fixing plate 440 and a pushing plate 450, the settling tank 410 is communicated with the discharging pipe 350, the motor 420 is fixedly installed at the outer side of one end of the settling tank 410 through bolts, one end of the screw rod 430 is fixedly installed at an output shaft of the motor through a coupling, the other end of the screw rod 430 is rotatably installed at the fixing plate 440, the fixing plate 440 is fixedly installed at the inner portion of one end of the settling tank 410 far away from the motor 420 through welding, the pushing plate 450 is in threaded transmission connection with the screw rod 430, and the pushing plate 450 is disposed inside the settling tank 410.
Referring to fig. 3, 7 and 8, specifically, the two sides of the pushing plate 450 are fixed with sliding blocks 451, the inner walls of the two sides of the settling tank 410 are provided with sliding grooves 411 adapted to the sliding blocks 451, the sliding blocks 451 slide in the sliding grooves 411 to guide and limit the pushing plate 450, one end of the settling tank 410 far away from the motor 420 is hinged with a door 412, and the door 412 can realize opening and closing of the settling tank 410.
The invention also provides a use method of the treatment device for waste gas generated by preparing rare earth through electrolysis of rare earth fluoride, which comprises the following steps:
s1, firstly, the generated waste gas enters a dust remover 120 through an air inlet pipe 130, and the dust remover 120 removes a large amount of solid particles and dust in the waste gas to realize first treatment;
s2, enabling the waste gas to enter the installation box 210 from the outlet of the dust remover 120, enabling the waste gas to enter the filter 240 in the movable box 230 from the installation box 210, and enabling the filter 240 to adsorb fixed particles which are not absorbed by the dust remover 120 in the gas and also enable the waste gas to be subjected to second treatment by some peculiar smell gases;
s3, when the filter body 240 in the movable box 230 needs to be replaced, the driving piece 220 starts to push the movable box 230 out of the installation box 210, the movable box 230 is further out of the installation box 210, then the movable box 230 is lifted out of the installation box 210 through the handle 231, the old filter body 240 is taken out of the movable box 230, then a new filter body 240 is replaced, then the movable box 230 is placed in the movable box 230 through the handle 231, then the piston rod of the driving piece 220 is retracted to the original position, and further the movable box 230 is driven to return to the installation box 210, and further replacement of the filter body 240 is achieved;
s4, conveying the waste gas to the connecting pipe 320 through the fan 310, then entering an inlet of the fluorine removing part 330 through the connecting pipe 320, enabling the waste gas to drift in the fluorine removing part 330, spraying atomized liquid through the spray header 340 on the fluorine removing part 330, and fully fusing and reacting the atomized liquid with fluorine gas in the waste gas to generate new fluoride, so that the treatment of the fluorine gas is realized;
s5, fluoride and atomized liquid generated by the reaction enter the precipitation tank 410 through the discharge pipe 350, after the generated fluoride is precipitated to the bottom, the liquid in the precipitation tank 410 is discharged, then a door 412 at the opening of the precipitation tank 410 is opened, then a motor 420 is started, the motor 420 drives a screw rod 430 to rotate, the screw rod 430 drives a pushing plate 450 to move from one side of the precipitation tank 410 to a discharge hole, the pushing plate 450 then withdraws the fluoride precipitated at the bottom of the precipitation tank 410 from the precipitation tank 410, and the fluoride is recycled, so that the whole process is completed.
Working principle: firstly, the generated waste gas enters the dust remover 120 through the air inlet pipe 130, and the dust remover 120 removes a large amount of solid particles and dust in the waste gas to realize first treatment;
then the waste gas enters the installation box 210 from the outlet of the dust remover 120, then enters the filter 240 in the movable box 230 from the installation box 210, and the filter 240 adsorbs fixed particles which are not absorbed by the dust remover 120 in the gas, and also some peculiar smell gas, so that the second treatment of the waste gas is realized;
when the filter body 240 in the movable box 230 needs to be replaced, the driving member 220 starts to push the movable box 230 out of the installation box 210, so that the movable box 230 comes out of the installation box 210, then the movable box 230 is lifted out of the installation box 210 through the handle 231, then the old filter body 240 is taken out of the movable box 230, then a new filter body 240 is replaced, then the movable box 230 is placed in the movable box 230 through the handle 231, then the piston rod of the driving member 220 is retracted to the original position, and the movable box 230 is driven to return to the installation box 210, so that the replacement of the filter body 240 is realized;
then, the waste gas is conveyed to the connecting pipe 320 through the fan 310, then enters the inlet of the fluorine removing part 330 through the connecting pipe 320, and then flows in a floating manner in the fluorine removing part 330, and at the moment, the spray header 340 on the fluorine removing part 330 sprays atomized liquid, and the atomized liquid and fluorine gas in the waste gas are fully fused and reacted to generate new fluoride, so that the treatment of the fluorine gas is realized;
fluoride and atomized liquid generated by the reaction enter the settling tank 410 through the discharging pipe 350, after the generated fluoride is settled to the bottom, the liquid in the settling tank 410 is discharged, then the door 412 at the opening of the settling tank 410 is opened, then the motor 420 is started, the motor 420 drives the screw rod 430 to rotate, the screw rod 430 drives the pushing plate 450 to move from one side of the settling tank 410 to the discharging hole, the pushing plate 450 withdraws the fluoride settled at the bottom of the settling tank 410 from the settling tank 410, and then the fluoride is recycled, and the whole process is completed.
It should be noted that: the specific model specifications of the dust remover 120, the driving member 220, the fan 310 and the motor 420 need to be determined according to the actual specifications of the device, and the specific model selection calculation method adopts the prior art in the field, so the detailed description is omitted.
The power supply of the dust remover 120, the driving member 220, the blower 310 and the motor 420 and the principle thereof will be clear to a person skilled in the art and will not be described in detail here.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations may be made to the present invention by those skilled in the art. 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 (10)
1. A treatment device for waste gas generated by preparing rare earth through electrolysis of rare earth fluoride is characterized by comprising
The dust removal assembly (100), the dust removal assembly (100) comprises a mounting frame (110), a dust remover (120) and an air inlet pipe (130), the dust remover (120) is arranged on the mounting frame (110), and the air inlet pipe (130) is communicated with the dust remover (120);
the filter assembly (200), filter assembly (200) include install bin (210), driving piece (220), remove case (230) and filter body (240), install bin (210) fixed mounting in mounting bracket (110), dust remover (120) communicate in install bin (210), driving piece (220) fixed mounting in one side of install bin (210), remove case (230) fixed mounting in the output of driving piece (220), remove case (230) setting in install bin (210), filter body (240) set up in remove case (230).
2. The apparatus for treating waste gas generated in the electrolytic production of rare earth according to claim 1, wherein handles (231) are fixed to both sides of the movable case (230).
3. The device for treating waste gas generated by preparing rare earth through electrolysis of rare earth fluoride according to claim 1, further comprising a fluorine removal assembly (300), wherein the fluorine removal assembly (300) comprises a fan (310), a connecting pipe (320), a fluorine removal part (330), a spray header (340) and a discharge pipe (350), the fan (310) is fixedly arranged on a mounting frame (110), an air inlet of the fan (310) is communicated with the bottom of the mounting frame (210), an air outlet of the fan (310) is communicated with one end of the connecting pipe (320), the other end of the connecting pipe (320) is communicated with the upper end of the fluorine removal part (330), the discharge pipe (350) is communicated with the lower end of the fluorine removal part (330), and a plurality of spray headers (340) are arranged on the fluorine removal part (330).
4. A treatment apparatus for waste gas generated in the electrolytic production of rare earth according to claim 3, wherein the fluorine removing section (330) is a spiral pipe.
5. A treatment device for waste gas generated in the electrolytic production of rare earth from rare earth fluoride according to claim 3, wherein an isolation cover (111) is provided on the outer side of the defluorination part (330), and the isolation cover (111) is fixedly mounted on the mounting frame (110).
6. The apparatus for treating waste gas generated in the electrolytic production of rare earth from rare earth fluoride according to claim 1, wherein the driving member (220) is an electric push rod.
7. The device for treating waste gas generated in the process of preparing rare earth by electrolyzing rare earth fluoride according to claim 1, further comprising a recovery assembly (400), wherein the recovery assembly (400) comprises a settling tank (410), a motor (420), a screw rod (430), a fixed plate (440) and a pushing plate (450), the settling tank (410) is communicated with the discharging pipe (350), the motor (420) is fixedly installed outside one end of the settling tank (410), one end of the screw rod (430) is fixedly installed on an output shaft of the motor, the other end of the screw rod is rotatably installed on the fixed plate (440), the fixed plate (440) is fixedly installed inside one end, far away from the motor (420), of the settling tank (410), the pushing plate (450) is in transmission connection with the screw rod (430), and the pushing plate (450) is arranged inside the settling tank (410).
8. The device for treating waste gas generated by preparing rare earth by electrolyzing rare earth fluoride according to claim 7, wherein sliding blocks (451) are fixed on two sides of the pushing plate (450), sliding grooves (411) matched with the sliding blocks (451) are formed on two inner walls of the settling tank (410), and the sliding blocks (451) slide in the sliding grooves (411).
9. The apparatus according to claim 7, wherein a door (412) is hinged to the end of the settling tank (410) away from the motor (420), and the door (412) can open and close the settling tank (410).
10. The application method of the treatment device for the waste gas generated by preparing the rare earth through the electrolysis of the rare earth fluoride is characterized by comprising the following steps of: the method specifically comprises the following steps:
s1, firstly, the generated waste gas enters a dust remover (120) through an air inlet pipe (130), and the dust remover (120) removes a large amount of solid particles and dust in the waste gas to realize first treatment;
s2, enabling the waste gas to enter the installation box (210) from the outlet of the dust remover (120), enabling the waste gas to enter the filter body (240) in the movable box (230) from the installation box (210), and enabling the filter body (240) to adsorb fixed particles which are not absorbed by the dust remover (120) in the gas and also enable the waste gas to be subjected to second treatment by some peculiar smell gas;
s3, when the filter body (240) in the movable box (230) needs to be replaced, the driving piece (220) starts to push the movable box (230) out of the installation box (210), the movable box (230) is further out of the installation box (210), then the movable box (230) is lifted out of the installation box (210) through the handle (231), the old filter body (240) is then taken out of the movable box (230), then a new filter body (240) is replaced, the movable box (230) is placed in the movable box (230) through the handle (231), then a piston rod of the driving piece (220) is retracted to the original position, and the movable box (230) is further driven to return to the installation box (210), and replacement of the filter body (240) is further achieved;
s4, conveying the waste gas to a connecting pipe (320) through a fan (310), then entering an inlet of a fluorine removal part (330) through the connecting pipe (320), enabling the waste gas to drift in the fluorine removal part (330), spraying atomized liquid through a spray header (340) on the fluorine removal part (330), and fully fusing and reacting the atomized liquid with fluorine gas in the waste gas to generate new fluoride, so that the treatment of the fluorine gas is realized;
s5, fluoride and atomized liquid generated by the reaction enter a precipitation tank (410) through a discharge pipe (350), after the generated fluoride is precipitated to the bottom, the liquid in the precipitation tank (410) is discharged, a door (412) at the opening of the precipitation tank (410) is opened, a motor (420) is started, the motor (420) drives a screw rod (430) to rotate, the screw rod (430) drives a pushing plate (450) to move from one side of the precipitation tank (410) to a discharge hole, the pushing plate (450) further pushes the fluoride precipitated at the bottom of the precipitation tank (410) out of the precipitation tank (410), and then the fluoride is recycled, and the whole process is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210773316.9A CN116785862A (en) | 2022-07-01 | 2022-07-01 | Treatment device for waste gas generated in rare earth preparation by rare earth fluoride electrolysis and use method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210773316.9A CN116785862A (en) | 2022-07-01 | 2022-07-01 | Treatment device for waste gas generated in rare earth preparation by rare earth fluoride electrolysis and use method |
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| CN206688430U (en) * | 2017-04-06 | 2017-12-01 | 河南工业大学 | New big flux air purifier |
| CN113198277A (en) * | 2021-03-29 | 2021-08-03 | 刘小丽 | Equipment is got rid of in prevention and cure of air particle pollutant |
| CN113599955A (en) * | 2021-08-24 | 2021-11-05 | 成渝钒钛科技有限公司 | Flue gas purification device for boiler burning and use method thereof |
| CN215085791U (en) * | 2021-05-06 | 2021-12-10 | 河南工程学院 | A dust removal device for building construction |
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2022
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206688430U (en) * | 2017-04-06 | 2017-12-01 | 河南工业大学 | New big flux air purifier |
| CN113198277A (en) * | 2021-03-29 | 2021-08-03 | 刘小丽 | Equipment is got rid of in prevention and cure of air particle pollutant |
| CN215085791U (en) * | 2021-05-06 | 2021-12-10 | 河南工程学院 | A dust removal device for building construction |
| CN113599955A (en) * | 2021-08-24 | 2021-11-05 | 成渝钒钛科技有限公司 | Flue gas purification device for boiler burning and use method thereof |
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Application publication date: 20230922 |
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