CN212523457U - Metallurgical waste gas treatment device - Google Patents
Metallurgical waste gas treatment device Download PDFInfo
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- CN212523457U CN212523457U CN201922247857.4U CN201922247857U CN212523457U CN 212523457 U CN212523457 U CN 212523457U CN 201922247857 U CN201922247857 U CN 201922247857U CN 212523457 U CN212523457 U CN 212523457U
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Abstract
The utility model relates to the technical field of metallurgical industry, in particular to a metallurgical waste gas treatment device which is convenient for cleaning a dust removal bin and improves the practicability; including the dust removal storehouse, the intake pipe, the air inlet valve, the outlet duct, the air outlet valve, including a motor, an end cap, a controller, and a cover plate, the reducing gear box, primary shaft bearing, the apparatus further comprises a rotating shaft, the connecting pipe, rotary joint, spray set, ejecting device, clean door and bolt, the inside in dust removal storehouse is provided with the cavity, the output of intake pipe passes the left end bottom in dust removal storehouse and communicates with each other with the cavity in dust removal storehouse, the output of air inlet valve is connected with the input of intake pipe, the input of outlet duct passes the right-hand member top in dust removal storehouse and communicates with each other with the cavity in dust removal storehouse, the input of air outlet valve is connected with the output of outlet duct, motor and reducing gear box fixed mounting are on the top in dust removal storehouse, the output of motor is connected with the input of.
Description
Technical Field
The utility model relates to a metallurgical industry's technical field especially relates to a metallurgical waste gas treatment device.
Background
Metallurgy is the process and technology of extracting metal or metal compounds from ores, and making metal into a metal material with certain performance by various processing methods, the metallurgical technology mainly comprises pyrometallurgy, hydrometallurgy and electric metallurgy, meanwhile, metallurgy has a long development history in China, a large amount of waste gas can be generated in the metallurgical process, a large amount of dust is often accompanied in the waste gas, the waste gas needs to be dedusted before being treated, the existing treatment device only uses a filter screen to remove dust, the dedusting effect is poor, the operation of cleaning a dedusting bin is complicated, and the practicability is poor.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a metallurgical exhaust treatment device convenient to clean dust removal storehouse improves the practicality.
The utility model relates to a metallurgical waste gas treatment device, which comprises a dust removing bin, an air inlet pipe, an air inlet valve, an air outlet pipe, an air outlet valve, a motor, a reduction gearbox, a first bearing seat, a rotating shaft, a connecting pipe, a rotating joint, a spraying device, a pushing device, a cleaning door and a bolt, wherein a cavity is arranged inside the dust removing bin, the output end of the air inlet pipe passes through the bottom of the left end of the dust removing bin and is communicated with the cavity of the dust removing bin, the output end of the air inlet valve is connected with the input end of the air inlet pipe, the input end of the air outlet pipe passes through the top of the right end of the dust removing bin and is communicated with the cavity of the dust removing bin, the input end of the air outlet valve is connected with the output end of the air outlet pipe, the motor and the reduction gearbox are fixedly arranged at the top end of the, the inside of the first bearing seat is provided with a bearing, the rotating shaft is fixedly arranged on the bearing inner ring of the first bearing seat, a cavity is arranged inside the rotating shaft, the top end and the bottom end of the rotating shaft are provided with openings, two groups of openings are communicated with the cavity of the rotating shaft, the outer circumferential wall at the top of the rotating shaft is provided with a driven gear which is meshed with a driving gear, the output end of the rotating joint is connected with the opening at the top end of the rotating shaft, the output end of a connecting pipe is rotatably connected with the input end of the rotating joint, the input end of the connecting pipe is connected with an external water source, the inside of the spraying device is provided with a cavity, the bottom end of the rotating shaft is fixedly connected with the top end of the spraying device, the opening at the bottom end of the rotating shaft is communicated with the cavity of the spraying device, the bottom end of the spraying device is provided, the bottom of the left end of the dust removal bin is provided with a cleaning window which is communicated with a cavity of the dust removal bin, the top end of the cleaning door is hinged with the left end of the dust removal bin, the right end of a bolt penetrates through the bottom of the left end of the cleaning door and fixes the cleaning door at the left end of the dust removal bin, the push-out device further comprises a shell, two groups of second shaft bearing blocks, a movable plate, two groups of connecting rods, a push plate and two groups of pressing devices, the cavity is arranged inside the shell, the left end of the shell is connected with the bottom of the right end of the dust removal bin, the two groups of second shaft bearing blocks are fixedly arranged at the left end and the right end of the cavity of the shell respectively, bearings are arranged inside each group of second shaft bearing blocks, a lead screw is fixedly arranged on inner rings of the bearings of the two groups of second shaft bearing blocks, the right end of the, the right-hand member of two sets of connecting rods and movable plate left end top and left end right part fixed connection, the left end of two sets of connecting rods all pass the casing and the dust removal storehouse stretch into to the cavity in dust removal storehouse and with the right-hand member fixed connection of push pedal, two sets of closing device respectively fixed mounting in the outside of two sets of connecting rods.
The utility model discloses a metallurgical exhaust treatment device, wherein every group closing device still includes the connecting plate, the telescopic link, spring and pressure head, the one end of connecting plate and the lateral wall fixed connection of connecting rod, the left end of telescopic link and the right-hand member fixed connection of connecting plate, the left part of telescopic link is provided with the baffle, the spring housing is established on the telescopic link, the right-hand member of spring and the left end fixed connection of connecting plate, the spring is located the right part of baffle, the telescopic link is located and is provided with the screw thread on the left part circumference outer wall of baffle, the right-hand member of pressure head is provided with the screw hole, the right-hand member spiral shell dress.
The utility model discloses a metallurgical waste gas treatment device, the right-hand member of dust removal storehouse cavity is provided with the protection casing.
The utility model discloses a metallurgical waste gas treatment device still includes two sets of axle sleeves, and two sets of axle sleeves are established at two sets of connecting rods respectively, and the right-hand member of two sets of axle sleeves all is connected with the right-hand member of dust removal storehouse cavity.
The utility model discloses a metallurgical exhaust treatment device still includes stop nut, and stop nut spiral shell dress cover is established on the lead screw.
The utility model discloses a metallurgical waste gas treatment device, the right-hand member of lead screw is provided with the hand wheel.
The utility model discloses a metallurgical waste gas treatment device all is provided with the strengthening rib between two sets of spray set and the two sets of connecting plates.
The utility model discloses a metallurgical waste gas treatment device, the left end of clean door is provided with the handle.
Compared with the prior art, the beneficial effects of the utility model are that: waste gas with dust generated by metallurgy is introduced into a cavity of a dust removal bin through an air inlet valve, a motor is started, a driving gear drives a driven gear to rotate under the transmission of a reduction gearbox, the driven gear drives a rotating shaft and a spraying device to rotate, then a connecting pipe is communicated with an external water source, clean water sequentially passes through the connecting pipe, a rotating joint and the rotating shaft and enters a cavity of the spraying device, metallurgical waste gas towards the interior of the cavity of the dust removal bin is sprayed by a plurality of groups of spraying heads in a rotating mode, dust in the waste gas is attached to the clean water and falls into the bottom end of the cavity of the dust removal bin, a cleaning door is opened after the waste gas is treated, water at the bottom end of the cavity of the dust removal bin is discharged out of the cavity of the dust removal bin, a lead screw is manually shaken, the lead screw drives two groups of connecting rods to move leftwards, the two groups of connecting rods drive a push, the practicability is improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of the engagement of the driving gear and the driven gear;
FIG. 3 is a schematic view of the ejector;
FIG. 4 is a schematic view of the construction of the compacting apparatus;
FIG. 5 is a schematic view of a cleaning door in structural connection with a dust bin;
in the drawings, the reference numbers: 1. a dust removal bin; 2. an air inlet pipe; 3. an intake valve; 4. an air outlet pipe; 5. an air outlet valve; 6. a motor; 7. a reduction gearbox; 8. a driving gear; 9. a first bearing housing; 10. a rotating shaft; 11. a driven gear; 12. a connecting pipe; 13. a rotary joint; 14. a spraying device; 15. a shower head; 16. a push-out device; 17. cleaning the window; 18. cleaning the door; 19. a bolt; 20. a housing; 21. a second bearing housing; 22. a lead screw; 23. moving the plate; 24. a connecting rod; 25. pushing the plate; 26. a pressing device; 27. a connecting plate; 28. a telescopic rod; 29. a baffle plate; 30. a spring; 31. a pressure head; 32. a protective cover; 33. a shaft sleeve; 34. a limit nut; 35. a hand wheel; 36. reinforcing ribs; 37. a handle.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
As shown in figures 1 to 5, the metallurgical waste gas treatment device of the utility model comprises a dust removing bin 1, an air inlet pipe 2, an air inlet valve 3, an air outlet pipe 4, an air outlet valve 5, a motor 6, a reduction gearbox 7, a first bearing seat 9, a rotating shaft 10, a connecting pipe 12, a rotating joint 13, a spraying device 14, a pushing device 16, a cleaning door 18 and a bolt 19, wherein a cavity is arranged inside the dust removing bin 1, the output end of the air inlet pipe 2 passes through the bottom of the left end of the dust removing bin 1 to be communicated with the cavity of the dust removing bin 1, the output end of the air inlet valve 3 is connected with the input end of the air inlet pipe 2, the input end of the air outlet pipe 4 passes through the top of the right end of the dust removing bin 1 to be communicated with the cavity of the dust removing bin 1, the input end of the air outlet valve 5 is connected with the output end of the air outlet pipe 4, the motor, the output end of the reduction gearbox 7 is provided with a driving gear 8, the first bearing seat 9 is fixedly arranged at the top end of a cavity of the dust removal bin 1, a bearing is arranged inside the first bearing seat 9, a rotating shaft 10 is fixedly arranged on an inner ring of the bearing of the first bearing seat 9, a cavity is arranged inside the rotating shaft 10, openings are arranged at the top end and the bottom end of the rotating shaft 10, two groups of openings are communicated with the cavity of the rotating shaft 10, a driven gear 11 is arranged on the circumferential outer wall at the top of the rotating shaft 10, the driven gear 11 is meshed with the driving gear 8, the output end of a rotating joint 13 is connected with the top end opening of the rotating shaft 10, the output end of a connecting pipe 12 is rotatably connected with the input end of the rotating joint 13, the input end of the connecting pipe 12 is connected with an external water source, a cavity is arranged inside the spraying device 14, the bottom end, the bottom end of the spraying device 14 is provided with a plurality of groups of spraying heads 15, the input ends of the plurality of groups of spraying heads 15 are communicated with the cavity of the spraying device 14, the left end of the pushing device 16 is fixedly connected with the bottom of the right end of the dust removing bin 1, the bottom of the left end of the dust removing bin 1 is provided with a cleaning window 17, the cleaning window 17 is communicated with the cavity of the dust removing bin 1, the top end of the cleaning door 18 is hinged with the left end of the dust removing bin 1, the right end of the bolt 19 penetrates through the bottom of the left end of the cleaning door 18 and fixes the cleaning door 18 at the left end of the dust removing bin 1, wherein the pushing device 16 further comprises a shell 20, two groups of second bearing blocks 21, a moving plate 23, two groups of connecting rods 24, a pushing plate 25 and two groups of pressing devices 26, the cavity is arranged inside the shell 20, the left end of the shell 20 is connected with the bottom of the right end of the dust removing bin 1, the, the screw rod 22 is fixedly arranged on the bearing inner rings of the two groups of second bearing seats 21, the right end of the screw rod 22 penetrates through the right end of the shell 20 and extends out to the right side of the shell 20, a screw nut is arranged on the movable plate 23, the movable plate 23 is sleeved on the screw rod 22 by means of the screw nut in a threaded manner, the right ends of the two groups of connecting rods 24 are fixedly connected with the top of the left end and the right part of the left end of the movable plate 23, the left ends of the two groups of connecting rods 24 penetrate through the shell 20 and the dust removal bin 1 and extend into a cavity of the dust removal bin 1 and are fixedly connected with the right end of the push plate; waste gas with dust generated by metallurgy is introduced into a cavity of a dust removing bin 1 through an air inlet valve 3, a motor 6 is started, a driving gear 8 drives a driven gear 11 to rotate under the transmission of a reduction gearbox 7, the driven gear 11 drives a rotating shaft 10 and a spraying device 14 to rotate, then a connecting pipe 12 is communicated with an external water source, clean water enters the cavity of the spraying device 14 through the connecting pipe 12, a rotating joint 13 and the rotating shaft 10 in sequence, metallurgical waste gas in the cavity of the dust removing bin 1 is sprayed in a rotating manner through a plurality of groups of spraying heads 15, dust in the waste gas is attached to the clean water and falls into the bottom end of the cavity of the dust removing bin 1, a cleaning door 18 is opened after the waste gas is treated, water at the bottom end of the cavity of the dust removing bin 1 is discharged out of the cavity of the dust removing bin 1, a screw rod 22 is manually shaken, the screw rod 22 drives two groups of connecting rods 24 to move leftwards, the two groups of connecting rods 24 drive a push plate 25 to, the dust removal bin is convenient to clean, and the practicability is improved.
The utility model discloses a metallurgical waste gas treatment device, wherein each group of closing device 26 still includes connecting plate 27, telescopic link 28, spring 30 and pressure head 31, the lateral wall fixed connection of one end and connecting rod 24 of connecting plate 27, the left end of telescopic link 28 and the right-hand member fixed connection of connecting plate 27, the left part of telescopic link 28 is provided with baffle 29, spring 30 cover is established on telescopic link 28, the right-hand member of spring 30 and the left end fixed connection of connecting plate 27, spring 30 is located the right part of baffle 29, telescopic link 28 is located and is provided with the screw thread on the left part circumference outer wall of baffle 29, the right-hand member of pressure head 31 is provided with the screw hole, the right-hand member spiro union cover of pressure head 31 is established on the; through twisting the left end of two sets of pressure heads 31 to two sets of pressure heads 31 and the right-hand member of push pedal 25 and pasting tightly, reduce when push pedal 25 promoted silt, because the uneven condition that leads to push pedal 25 skew of resistance that receives takes place, improves the practicality.
The utility model relates to a metallurgical waste gas treatment device, the right end of the chamber of the dust removal bin 1 is provided with a protective cover 32; through setting up protection casing 32, the reduction drops push pedal 25 right side when dust adheres to the water droplet and falls and is difficult to clear condition emergence, improves the practicality in dust removal process.
The metallurgical waste gas treatment device of the utility model also comprises two groups of shaft sleeves 33, wherein the two groups of shaft sleeves 33 are respectively sleeved on the two groups of connecting rods 24, and the right ends of the two groups of shaft sleeves 33 are connected with the right end of the chamber of the dust removal bin 1; through installing two sets of axle sleeves 33, reduce the condition emergence that connecting rod 24 and dust removal storehouse 1 direct contact friction caused dust removal storehouse 1 wearing and tearing, improve the practicality.
The metallurgical waste gas treatment device of the utility model also comprises a limit nut 34, and the limit nut 34 is sleeved on the lead screw 22 in a threaded manner; by installing the limit nut 34, the situation that the moving plate 23 collides with the left second bearing seat 21 due to excessive rotation of the lead screw 22 is reduced, and the safety is improved.
The utility model relates to a metallurgical waste gas treatment device, a hand wheel 35 is arranged at the right end of a lead screw 22; through setting up hand wheel 35, the user of being convenient for revolves and twists lead screw 22, improves the convenience.
In the metallurgical waste gas treatment device of the utility model, reinforcing ribs 36 are arranged between the two groups of spraying devices 14 and the two groups of connecting plates 27; through setting up strengthening rib 36, increase the support intensity of two sets of connecting plates 27, improve stability.
The utility model relates to a metallurgical waste gas treatment device, the left end of a cleaning door 18 is provided with a handle 37; by providing the handle 37, the user can open and close the cleaning door 18 conveniently, which improves convenience.
The utility model relates to a metallurgical waste gas treatment device, when it works, firstly, the waste gas with dust generated by metallurgy is introduced into the cavity of a dust removing bin 1 through an air inlet valve 3, a motor 6 is started, a driving gear 8 drives a driven gear 11 to rotate under the transmission of a reduction gearbox 7, the driven gear 11 drives a rotating shaft 10 and a spraying device 14 to rotate, then a connecting pipe 12 and an external water source are communicated, clean water sequentially passes through the connecting pipe 12, a rotary joint 13 and the rotating shaft 10 to enter the cavity of the spraying device 14, metallurgical waste gas in the cavity of the dust removing bin 1 is rotationally sprayed through a plurality of groups of spraying heads 15, the dust in the waste gas is attached to the clean water and falls into the cavity bottom end of the dust removing bin 1, a cleaning door 18 is opened after the waste gas is treated, the water at the cavity bottom end of the dust removing bin 1 is discharged out of the cavity end of the dust removing bin 1, a hand wheel 35 is manually shaken, the, the two groups of connecting rods 24 drive the push plate 25 to push the precipitated sludge at the bottom end of the chamber of the dust removing bin 1 to the cleaning window 17 and discharge the sludge.
The metallurgical waste gas treatment device of the utility model has the advantages that the installation mode, the connection mode or the setting mode are common mechanical modes, and the installation mode, the connection mode or the setting mode can be implemented as long as the beneficial effects can be achieved; the utility model discloses a metallurgical exhaust treatment device's motor is purchase on the market, and this technical staff only need according to its subsidiary service instruction install and operate can in the industry.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A metallurgical waste gas treatment device is characterized by comprising a dust removal bin (1), an air inlet pipe (2), an air inlet valve (3), an air outlet pipe (4), an air outlet valve (5), a motor (6), a reduction gearbox (7), a first bearing seat (9), a rotating shaft (10), a connecting pipe (12), a rotating joint (13), a spraying device (14), a pushing device (16), a cleaning door (18) and a bolt (19), wherein a cavity is arranged inside the dust removal bin (1), the output end of the air inlet pipe (2) penetrates through the bottom of the left end of the dust removal bin (1) to be communicated with the cavity of the dust removal bin (1), the output end of the air inlet valve (3) is connected with the input end of the air inlet pipe (2), the input end of the air outlet pipe (4) penetrates through the top of the right end of the dust removal bin (1) to be communicated with the cavity of the dust removal bin (1), and the input end of the air outlet, the motor (6) and the reduction gearbox (7) are fixedly arranged at the top end of the dust removal bin (1), the output end of the motor (6) is connected with the input end of the reduction gearbox (7), a driving gear (8) is arranged at the output end of the reduction gearbox (7), the first bearing seat (9) is fixedly arranged at the top end of a cavity of the dust removal bin (1), a bearing is arranged inside the first bearing seat (9), the rotating shaft (10) is fixedly arranged on a bearing inner ring of the first bearing seat (9), the cavity is arranged inside the rotating shaft (10), openings are arranged at the top end and the bottom end of the rotating shaft (10), two groups of openings are communicated with the cavity of the rotating shaft (10), a driven gear (11) is arranged on the circumferential outer wall at the top of the rotating shaft (10), the driven gear (11) is meshed with the driving gear (8), the output end of the rotating joint (13) is connected with the opening at the top end of the rotating shaft (10), the output end of, the input end of the connecting pipe (12) is connected with an external water source, a cavity is arranged inside the spraying device (14), the bottom end of the rotating shaft (10) is fixedly connected with the top end of the spraying device (14), the bottom end opening of the rotating shaft (10) is communicated with the cavity of the spraying device (14), a plurality of groups of spraying heads (15) are arranged at the bottom end of the spraying device (14), the input ends of the plurality of groups of spraying heads (15) are communicated with the cavity of the spraying device (14), the left end of the pushing device (16) is fixedly connected with the bottom of the right end of the dedusting bin (1), a cleaning window (17) is arranged at the bottom of the left end of the dedusting bin (1), the cleaning window (17) is communicated with the cavity of the dedusting bin (1), the top end of the cleaning door (18) is hinged with the left end of the dedusting bin (1), the right end of the bolt (19) penetrates through the bottom of the left end of the cleaning door (18) and fixes the cleaning door (18) at the, wherein the pushing device (16) also comprises a shell (20), two groups of second bearing seats (21), a movable plate (23), two groups of connecting rods (24), a push plate (25) and two groups of pressing devices (26), a cavity is arranged in the shell (20), the left end of the shell (20) is connected with the bottom of the right end of the dust removal bin (1), the two groups of second bearing seats (21) are respectively and fixedly arranged at the left end and the right end of the cavity of the shell (20), bearings are arranged in each group of second bearing seats (21), a lead screw (22) is fixedly arranged on bearing inner rings of the two groups of second bearing seats (21), the right end of the lead screw (22) penetrates through the right end of the shell (20) and extends out to the right side of the shell (20), a lead screw nut is arranged on the movable plate (23), the movable plate (23) is sleeved on the lead screw (22) by the lead screw nut in a screw mode, the right ends of the two groups, the left ends of the two groups of connecting rods (24) penetrate through the shell (20) and the dust removal bin (1) and extend into the cavity of the dust removal bin (1) and are fixedly connected with the right end of the push plate (25), and the two groups of pressing devices (26) are respectively and fixedly installed on the outer sides of the two groups of connecting rods (24).
2. A metallurgical off-gas treatment device according to claim 1, wherein each set of holding-down devices (26) further comprises a connecting plate (27), a telescopic rod (28), spring (30) and pressure head (31), the one end of connecting plate (27) and the lateral wall fixed connection of connecting rod (24), the left end of telescopic link (28) and the right-hand member fixed connection of connecting plate (27), the left part of telescopic link (28) is provided with baffle (29), spring (30) cover is established on telescopic link (28), the right-hand member of spring (30) and the left end fixed connection of connecting plate (27), spring (30) are located the right part of baffle (29), telescopic link (28) are located and are provided with the screw thread on the left part circumference outer wall of baffle (29), the right-hand member of pressure head (31) is provided with the screw hole, the right-hand member spiro union cover of pressure head (31) is established on the circumference outer wall of telescopic link (28).
3. A metallurgical off-gas treatment device according to claim 2, characterized in that the right end of the chamber of the dust-removal bin (1) is provided with a protective cover (32).
4. A metallurgical waste gas treatment device according to claim 3, further comprising two sets of shaft sleeves (33), wherein the two sets of shaft sleeves (33) are respectively sleeved on the two sets of connecting rods (24), and the right ends of the two sets of shaft sleeves (33) are connected with the right end of the chamber of the dust removal bin (1).
5. A metallurgical off-gas treatment device according to claim 4, further comprising a limit nut (34), the limit nut (34) being threadably received on the lead screw (22).
6. A metallurgical off-gas treatment device according to claim 5, wherein the right end of the screw (22) is provided with a hand wheel (35).
7. A metallurgical off-gas treatment device according to claim 6, characterized in that reinforcing ribs (36) are provided between both sets of spraying devices (14) and both sets of connecting plates (27).
8. A metallurgical off-gas treatment device according to claim 7, wherein the cleaning gate (18) is provided with a handle (37) at its left end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922247857.4U CN212523457U (en) | 2019-12-13 | 2019-12-13 | Metallurgical waste gas treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922247857.4U CN212523457U (en) | 2019-12-13 | 2019-12-13 | Metallurgical waste gas treatment device |
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| Publication Number | Publication Date |
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| CN212523457U true CN212523457U (en) | 2021-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922247857.4U Active CN212523457U (en) | 2019-12-13 | 2019-12-13 | Metallurgical waste gas treatment device |
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| CN (1) | CN212523457U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113318526A (en) * | 2021-05-26 | 2021-08-31 | 安徽天顺环保设备股份有限公司 | Passive heating pressure air back-blowing cloth bag dust remover |
-
2019
- 2019-12-13 CN CN201922247857.4U patent/CN212523457U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113318526A (en) * | 2021-05-26 | 2021-08-31 | 安徽天顺环保设备股份有限公司 | Passive heating pressure air back-blowing cloth bag dust remover |
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