CN216909809U - Electrolytic aluminum waste gas environmental protection processing apparatus - Google Patents
Electrolytic aluminum waste gas environmental protection processing apparatus Download PDFInfo
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- CN216909809U CN216909809U CN202122724938.6U CN202122724938U CN216909809U CN 216909809 U CN216909809 U CN 216909809U CN 202122724938 U CN202122724938 U CN 202122724938U CN 216909809 U CN216909809 U CN 216909809U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/151—Reduction of greenhouse gas [GHG] emissions, e.g. CO2
Abstract
The utility model relates to the technical field of waste gas treatment, and particularly discloses an electrolytic aluminum waste gas environment-friendly treatment device which comprises an electrolytic cell, wherein the top of the electrolytic cell is connected with an air outlet pipe, the other end of the air outlet pipe is connected with a bag-type dust collector, an air outlet of the bag-type dust collector is connected with one end of a first conveying pipe, the other end of the first conveying pipe is connected with a gas cooling device, an air outlet of the gas cooling device is connected with one end of a second conveying pipe, the other end of the second conveying pipe is connected with a first reaction tank, an air outlet of the first reaction tank is connected with one end of a third conveying pipe, the other end of the third conveying pipe is connected with a combustion chamber, a second filter screen arranged in a filter box is used for filtering the treated gas, a screw rod rotates, a nut drives a sliding block to slide in a sliding groove, and a cleaning brush sweeps over the second filter screen, the filter screen blockage caused by dust is avoided.
Description
Technical Field
The utility model relates to the technical field of waste gas treatment, in particular to an electrolytic aluminum waste gas environment-friendly treatment device.
Background
The electrolytic aluminum is aluminum obtained by electrolysis, the modern electrolytic aluminum industrial production adopts a cryolite and alumina molten salt electrolysis method, the molten cryolite is a solvent, the alumina is a solute, a carbon body is used as an anode, aluminum liquid is used as a cathode, strong direct current is introduced, and then electrochemical reaction is carried out on two poles in an electrolytic cell at high temperature, namely electrolysis. The anode products mainly comprise carbon monoxide and carbon dioxide, and a certain amount of harmful gas is also contained in the carbon monoxide and carbon dioxide, and the carbon monoxide and carbon dioxide are directly discharged into the air, so that the environment can be polluted, the physical health of surrounding workers can be seriously affected, and the discharged gas contains a large amount of dust, so that the pipeline is easily blocked.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an electrolytic aluminum waste gas environment-friendly treatment device to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: an electrolytic aluminum waste gas environment-friendly treatment device comprises an electrolytic cell, wherein the top of the electrolytic cell is connected with an air outlet pipe, the other end of the air outlet pipe is connected with a bag-type dust collector, the air outlet of the bag-type dust collector is connected with one end of a first conveying pipe, the other end of the first conveying pipe is connected with a gas cooling device, the air outlet of the gas cooling device is connected with one end of a second conveying pipe, the other end of the second conveying pipe is connected with a first reaction tank, the air outlet of the first reaction tank is connected with one end of a third conveying pipe, the other end of the third conveying pipe is connected with a combustion chamber, the air outlet of the combustion chamber is connected with one end of a fourth conveying pipe, the other end of the fourth conveying pipe is connected with a filter box, the air outlet of the filter box is connected with one end of a fifth conveying pipe, the other end of the fifth conveying pipe is connected with a second reaction tank, the gas outlet of the second reaction tank is connected with one end of a sixth conveying pipe, the other end of the sixth conveying pipe is connected with an adsorption tank, and the gas outlet of the adsorption tank is connected with a gas exhaust pipe;
the improved filter box is characterized in that a second filter screen is arranged in the filter box, one end of the top of the second filter screen is connected with a cleaning brush, the top of the cleaning brush is connected with a sliding block, the sliding block is connected below a nut, the nut is connected on a lead screw, the lead screw is connected in a connecting box, the bottom of the connecting box is provided with a sliding groove in sliding connection with the sliding block, and the connecting box is horizontally arranged in the filter box.
Preferably, the gas cooling device is connected with the liquid nitrogen tank through a pipeline, a liquid outlet is formed in the bottom of the gas cooling device, a liquid discharge pipe is connected in the liquid outlet, and one end of the liquid discharge pipe is connected with a liquid collecting tank.
Preferably, the top of first reaction tank is provided with the apron, be provided with servo motor on the apron, the level is provided with first filter screen in the first reaction tank, the below of first filter screen is provided with first annular distribution pipe, be connected with many breather pipes on the first annular distribution pipe, first annular distribution pipe is connected with the one end of second conveyer pipe.
Preferably, a second annular distribution pipe is arranged in the second reaction tank, a plurality of vent pipes are connected to the second annular distribution pipe, and the second annular distribution pipe is connected with one end of the fifth conveying pipe.
Preferably, the top of first reaction tank and second reaction tank all is provided with the apron, all is provided with the charge door on every apron, the bottom of first reaction tank and second reaction tank all is provided with the liquid outlet, be provided with servo motor on the apron, servo motor is connected with the axis of rotation through the motor shaft from the area, and is connected with the multi-disc stirring leaf in the axis of rotation, and the stirring leaf setting in first reaction tank is in the below of first filter screen.
Preferably, all be provided with the spread groove on the both sides inner wall of rose box, equal sliding connection has the connecting block in every spread groove, and the both ends at the second filter screen are connected to the connecting block.
Preferably, the outside of rose box is provided with servo motor, servo motor is connected with the one end of lead screw through the motor shaft of taking certainly.
Preferably, one end of the gas outlet pipe is connected with a main collecting pipe, a plurality of branch collecting pipes are connected below the main collecting pipe, and the main collecting pipe and the branch collecting pipes are both arranged in the electrolytic cell.
Preferably, the air outlet pipe, the first conveying pipe, the second conveying pipe, the third conveying pipe, the fourth conveying pipe, the fifth conveying pipe and the sixth conveying pipe are all connected with a conveying fan.
Compared with the prior art, the electrolytic aluminum waste gas environment-friendly treatment device has the beneficial effects that: a second filter screen is arranged in the filter box, the treated gas is filtered, the screw rod rotates, the nut drives the sliding block to slide in the sliding groove, and the cleaning brush sweeps over the second filter screen, so that the filter screen is prevented from being blocked by dust; the gas cooling device is arranged for cooling the hydrogen fluoride in the waste gas, liquefying the hydrogen fluoride, collecting the liquid hydrogen fluoride through the liquid collecting tank, absorbing the residual hydrogen fluoride in the waste gas through the alkali solution or other salt solutions added into the first reaction tank, and gathering and precipitating impurities in the solution by adopting a flocculating agent to improve the treatment of the hydrogen fluoride; the setting of combustion chamber is to carbon monoxide and air or oxygen mixture and ignition in the waste gas, and carbon monoxide burning generates carbon dioxide, then lets in and carries out reaction treatment in the second reaction tank, adsorbs the peculiar smell through the adsorption tank at last, discharges.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the connection of the outlet pipe of the present invention;
FIG. 3 is a schematic view of the inside of a first reaction tank according to the present invention;
FIG. 4 is a schematic view of the interior of the filtration tank of the present invention;
FIG. 5 is a schematic view of the inside of a second reaction tank according to the present invention;
fig. 6 is a bottom view of the first annular distribution pipe of the present invention.
In the figure: 1. an electrolytic cell; 2. an air outlet pipe; 201. a collecting main pipe; 202. a collecting branch pipe; 3. a bag-type dust collector; 4. a first delivery pipe; 5. a gas cooling device; 6. a second delivery pipe; 7. a liquid nitrogen tank; 8. a liquid discharge pipe; 9. a liquid collection tank; 10. a first reaction tank; 11. a third delivery pipe; 12. a combustion chamber; 13. a fourth delivery pipe; 14. a filter box; 15. a fifth delivery pipe; 16. a second reaction tank; 161. a second annular distribution pipe; 17. a sixth delivery pipe; 18. an adsorption tank; 19. an exhaust pipe; 20. a cover plate; 21. a first annular distribution pipe; 22. stirring blades; 23. a first filter screen; 24. a servo motor; 25. a second filter screen; 251. connecting blocks; 26. a connecting box; 27. a screw rod; 28. a nut; 29. a slider; 30. a chute; 31. and (4) cleaning the brush.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1-6, the present invention provides a technical solution: an electrolytic aluminum waste gas environment-friendly treatment device comprises an electrolytic cell 1, wherein the top of the electrolytic cell 1 is connected with an air outlet pipe 2, the other end of the air outlet pipe 2 is connected with a bag-type dust collector 3, the air outlet of the bag-type dust collector 3 is connected with one end of a first conveying pipe 4, the other end of the first conveying pipe 4 is connected with a gas cooling device 5, the air outlet of the gas cooling device 5 is connected with one end of a second conveying pipe 6, the other end of the second conveying pipe 6 is connected with a first reaction tank 10, the air outlet of the first reaction tank 10 is connected with one end of a third conveying pipe 11, the other end of the third conveying pipe 11 is connected with a combustion chamber 12, the air outlet of the combustion chamber 12 is connected with one end of a fourth conveying pipe 13, the other end of the fourth conveying pipe 13 is connected with a filter box 14, the air outlet of the filter box 14 is connected with one end of a fifth conveying pipe 15, the other end of the fifth conveying pipe 15 is connected with a second reaction tank 16, an air outlet of the second reaction tank 16 is connected with one end of a sixth conveying pipe 17, the other end of the sixth conveying pipe 17 is connected with an adsorption tank 18, and an air outlet of the adsorption tank 18 is connected with an exhaust pipe 19;
a second filter screen 25 is arranged in the filter box 14, one end of the top of the second filter screen 25 is connected with a cleaning brush 31, the top of the cleaning brush 31 is connected with a sliding block 29, the sliding block 29 is connected below a nut 28, the nut 28 is connected on a screw rod 27, the screw rod 27 is connected in a connecting box 26, the bottom of the connecting box 26 is provided with a sliding groove 30 in sliding connection with the sliding block 29, and the connecting box 26 is horizontally arranged in the filter box 14.
Gas cooling device 5 is connected with liquid nitrogen container 7 through the pipeline, and gas cooling device 5's bottom is provided with the liquid outlet, and the liquid outlet in-connection has fluid- discharge tube 8, and 8 one end of fluid-discharge tube are connected with liquid collection tank 9.
The upper portion of first reaction tank 10 is provided with apron 20, is provided with servo motor 24 on the apron 20, and the level is provided with first filter screen 23 in the first reaction tank 10, and the below of first filter screen 23 is provided with first annular distributing pipe 21, is connected with many breather pipes on the first annular distributing pipe 21, and first annular distributing pipe 21 is connected with the one end of second conveyer pipe 6.
A second annular distribution pipe 161 is arranged in the second reaction tank 16, a plurality of vent pipes are connected to the second annular distribution pipe 161, and the second annular distribution pipe 161 is connected with one end of the fifth delivery pipe 15.
The top of first reaction tank 10 and second reaction tank 16 all is provided with apron 20, all is provided with the charge door on every apron 20, and the bottom of first reaction tank 10 and second reaction tank 16 all is provided with the liquid outlet, is provided with servo motor 24 on the apron 20, and servo motor 24 is connected with the axis of rotation through the motor shaft from the area, and is connected with the multi-disc stirring leaf 22 in the axis of rotation, and the stirring leaf 22 setting in first reaction tank 10 is in the below of first filter screen 23.
All be provided with the spread groove on the both sides inner wall of rose box 14, equal sliding connection has connecting block 251 in every spread groove, and connecting block 251 connects the both ends at second filter screen 25, and second filter screen 25 passes through the slip of connecting block 251 with the spread groove, conveniently pulls out in rose box 14, washs or changes.
The servo motor 24 is arranged on the outer side of the filter box 14, the servo motor 24 is connected with one end of the screw rod 27 through a self-contained motor shaft, and after the servo motor 24 is electrified, the screw rod 27 is driven to rotate, so that the cleaning brush 30 is conveniently driven to move, and the second filter screen 25 is cleaned.
The one end of outlet duct 2 is connected with collects and is responsible for 201, collects the below of being responsible for 201 and is connected with many and collects bleeder 202, and collects and be responsible for 201 and collect bleeder 202 and all set up in electrolysis trough 1, collects bleeder 202 and collects waste gas, is responsible for 201 through collecting and is carried to outlet duct 2 in.
The outlet pipe 2, the first delivery pipe 4, the second delivery pipe 6, the third delivery pipe 11, the fourth delivery pipe 13, the fifth delivery pipe 15 and the sixth delivery pipe 17 are connected with a delivery fan, and the delivery fan facilitates delivery of gas.
The working principle is as follows: when the device is used, the collecting branch pipe 202 collects waste gas in the electrolytic tank 1, the waste gas is conveyed into the gas outlet pipe 2 through the collecting main pipe 201, then the waste gas enters the bag-type dust remover 3 for dust removal, and then the waste gas is conveyed into the gas cooling device 5 through the first conveying pipe 4, the liquid nitrogen is conveyed into the gas cooling device 5 through the liquid nitrogen tank 7 for cooling the waste gas, the cooling temperature is set to be-60-10 ℃, the hydrogen fluoride can be liquefied into liquid hydrogen fluoride at the temperature because the boiling point of the hydrogen fluoride is 19.54 ℃, and the carbon dioxide and the carbon monoxide still exist in a gaseous state because the boiling point of the hydrogen fluoride is lower, and then the liquid hydrogen fluoride is discharged into the liquid collecting tank 9 through the liquid discharge pipe 8 for collection;
waste gas containing a small amount of hydrogen fluoride, carbon dioxide, carbon monoxide and solid dust continuously enters a first reaction tank 10 through a second conveying pipe 6, alkali solution or other salt solution in the first reaction tank 10 absorbs the residual hydrogen fluoride in the waste gas, impurities in the solution are gathered and precipitated by adopting a flocculating agent, the treatment on the hydrogen fluoride is improved, then the waste gas is conveyed into a combustion chamber 12 through a third conveying pipe 11, air or oxygen is introduced into the combustion chamber 12, then the carbon monoxide is combusted, carbon dioxide is generated after the combustion, the waste gas is conveyed into a filter box 14 through a fourth conveying pipe 13 and is filtered by a second filter screen 25, a servo motor 24 is electrified to drive a stirring blade 22 to rotate, a reagent and the waste gas are mixed, the blade drives a screw rod 27 to rotate, a nut 28 starts to move to drive a sliding block 29 to slide in a sliding groove 30, and a sweeping brush 31 sweeps dust on the second filter screen 25, the filtered gas is transported to a second reaction tank 16 through a fifth transport pipe 15, lime water is added into the second reaction tank 16 to react with carbon dioxide to generate precipitated calcium carbonate, and finally the residual gas is transported to an adsorption tank 18 through a sixth transport pipe 17 to be adsorbed and then is discharged through an exhaust pipe 19.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides an electrolytic aluminum waste gas environmental protection processing apparatus, includes electrolysis trough (1), its characterized in that: the top of the electrolytic cell (1) is connected with an air outlet pipe (2), the other end of the air outlet pipe (2) is connected with a bag-type dust collector (3), the air outlet of the bag-type dust collector (3) is connected with one end of a first conveying pipe (4), the other end of the first conveying pipe (4) is connected with a gas cooling device (5), the air outlet of the gas cooling device (5) is connected with one end of a second conveying pipe (6), the other end of the second conveying pipe (6) is connected with a first reaction tank (10), the air outlet of the first reaction tank (10) is connected with one end of a third conveying pipe (11), the other end of the third conveying pipe (11) is connected with a combustion chamber (12), the air outlet of the combustion chamber (12) is connected with one end of a fourth conveying pipe (13), the other end of the fourth conveying pipe (13) is connected with a filter box (14), an air outlet of the filter box (14) is connected with one end of a fifth conveying pipe (15), the other end of the fifth conveying pipe (15) is connected with a second reaction tank (16), an air outlet of the second reaction tank (16) is connected with one end of a sixth conveying pipe (17), the other end of the sixth conveying pipe (17) is connected with an adsorption box (18), and an air outlet of the adsorption box (18) is connected with an exhaust pipe (19);
be provided with second filter screen (25) in rose box (14), the top one end of second filter screen (25) is connected with brush cleaner (31), the top of brush cleaner (31) is connected with slider (29), the below at nut (28) is connected in slider (29), nut (28) are connected on lead screw (27), lead screw (27) are connected in connecting box (26), the bottom of connecting box (26) is provided with spout (30) with slider (29) sliding connection, connecting box (26) level sets up in rose box (14).
2. The electrolytic aluminum waste gas environmental protection processing device according to claim 1, characterized in that: the liquid nitrogen cooling device is characterized in that the gas cooling device (5) is connected with a liquid nitrogen tank (7) through a pipeline, a liquid outlet is formed in the bottom of the gas cooling device (5), a liquid discharge pipe (8) is connected into the liquid outlet, and one end of the liquid discharge pipe (8) is connected with a liquid collecting tank (9).
3. The electrolytic aluminum waste gas environmental protection processing device according to claim 1, characterized in that: the top of first reaction tank (10) is provided with apron (20), be provided with servo motor (24) on apron (20), the level is provided with first filter screen (23) in first reaction tank (10), the below of first filter screen (23) is provided with first annular distribution pipe (21), be connected with many breather pipes on first annular distribution pipe (21), first annular distribution pipe (21) are connected with the one end of second conveyer pipe (6).
4. The electrolytic aluminum waste gas environmental protection processing device according to claim 1, characterized in that: a second annular distribution pipe (161) is arranged in the second reaction tank (16), a plurality of vent pipes are connected to the second annular distribution pipe (161), and the second annular distribution pipe (161) is connected with one end of a fifth conveying pipe (15).
5. The electrolytic aluminum waste gas environmental protection processing device according to claim 1, characterized in that: the top of first reaction tank (10) and second reaction tank (16) all is provided with apron (20), all is provided with the charge door on every apron (20), the bottom of first reaction tank (10) and second reaction tank (16) all is provided with the liquid outlet, be provided with servo motor (24) on apron (20), servo motor (24) are connected with the axis of rotation through the motor shaft from the area, and are connected with multi-disc stirring leaf (22) in the axis of rotation, and stirring leaf (22) in first reaction tank (10) set up the below at first filter screen (23).
6. The electrolytic aluminum waste gas environmental protection processing device according to claim 1, characterized in that: all be provided with the spread groove on the both sides inner wall of rose box (14), equal sliding connection has connecting block (251) in every spread groove, and connecting block (251) are connected at the both ends of second filter screen (25).
7. The electrolytic aluminum waste gas environmental protection processing device according to claim 1, characterized in that: the outer side of the filter box (14) is provided with a servo motor (24), and the servo motor (24) is connected with one end of a screw rod (27) through a motor shaft of the servo motor.
8. The electrolytic aluminum waste gas environmental protection processing device according to claim 1, characterized in that: one end of the air outlet pipe (2) is connected with a collecting main pipe (201), a plurality of collecting branch pipes (202) are connected below the collecting main pipe (201), and the collecting main pipe (201) and the collecting branch pipes (202) are arranged in the electrolytic bath (1).
9. The electrolytic aluminum waste gas environmental protection processing device according to claim 1, characterized in that: and the air outlet pipe (2), the first conveying pipe (4), the second conveying pipe (6), the third conveying pipe (11), the fourth conveying pipe (13), the fifth conveying pipe (15) and the sixth conveying pipe (17) are all connected with a conveying fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122724938.6U CN216909809U (en) | 2021-11-08 | 2021-11-08 | Electrolytic aluminum waste gas environmental protection processing apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122724938.6U CN216909809U (en) | 2021-11-08 | 2021-11-08 | Electrolytic aluminum waste gas environmental protection processing apparatus |
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| CN216909809U true CN216909809U (en) | 2022-07-08 |
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| CN202122724938.6U Active CN216909809U (en) | 2021-11-08 | 2021-11-08 | Electrolytic aluminum waste gas environmental protection processing apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107502922A (en) * | 2017-10-23 | 2017-12-22 | 常宁市华兴冶化实业有限责任公司 | A kind of system and method for electrolytic aluminium waste gas disposal |
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2021
- 2021-11-08 CN CN202122724938.6U patent/CN216909809U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107502922A (en) * | 2017-10-23 | 2017-12-22 | 常宁市华兴冶化实业有限责任公司 | A kind of system and method for electrolytic aluminium waste gas disposal |
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