CN111672256A - Waste gas treatment device for welding equipment - Google Patents
Waste gas treatment device for welding equipment Download PDFInfo
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- CN111672256A CN111672256A CN202010579462.9A CN202010579462A CN111672256A CN 111672256 A CN111672256 A CN 111672256A CN 202010579462 A CN202010579462 A CN 202010579462A CN 111672256 A CN111672256 A CN 111672256A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/20—Combinations of devices covered by groups B01D45/00 and B01D46/00
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
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- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention provides a waste gas treatment device for welding equipment, which comprises a rack, wherein a gas collection mechanism and a purification mechanism are arranged on the rack, the purification mechanism comprises a purification box, a filtering curved pipe, a filtering box and a filtering plate are arranged in the purification box, one end of the purification box is provided with an exhaust pipe, the gas collection mechanism is connected with the inlet end of the filtering curved pipe through the gas collection pipe, the outlet end of the filtering curved pipe is connected with the filtering box through a conveying pipe, and the filtering box, the filtering plate and the exhaust pipe are sequentially arranged; the inner wall of the filtering curved pipe is provided with a plurality of filtering short plates which are arranged in a staggered mode, and an activated carbon plate is arranged in the filtering box. Waste gas produced by welding sequentially passes through the filtering curved pipe, the filtering box and the filtering plate, the flow path of the waste gas is increased, the treatment time of the waste gas is prolonged, and the treatment effect is improved through multiple filtering or adsorption.
Description
Technical Field
The invention relates to the field of waste gas treatment equipment, in particular to a waste gas treatment device for welding equipment.
Background
Welding, also known as fusion or melt welding, is a process and technique for joining metals or other thermoplastic materials, such as plastics, in a heated, high temperature or high pressure manner, and the exhaust gases generated during welding contain a large amount of heavy metals and are highly harmful to the human body.
The existing waste gas treatment device for welding equipment can not completely filter harmful substances in electric welding waste gas due to the fact that the inside of the waste gas treatment device is only provided with a simple filter plate to absorb gas, and the waste gas still has odor after being filtered, and can not reach the emission standard.
Disclosure of Invention
The invention aims to provide a waste gas treatment device for welding equipment, which improves the purification effect of waste gas.
The technical scheme adopted by the invention for solving the technical problems is as follows: the waste gas treatment device for the welding equipment comprises a frame, wherein a gas collection mechanism and a purification mechanism are arranged on the frame, the purification mechanism comprises a purification box, a filtering curved pipe, a filtering box and a filtering plate are arranged in the purification box, an exhaust pipe is arranged at one end of the purification box, the gas collection mechanism is connected with the inlet end of the filtering curved pipe through the gas collection pipe, the outlet end of the filtering curved pipe is connected with the filtering box through a conveying pipe, and the filtering box, the filtering plate and the exhaust pipe are sequentially arranged; the inner wall of the filtering curved pipe is provided with a plurality of filtering short plates which are arranged in a staggered mode, and an activated carbon plate is arranged in the filtering box.
Furthermore, the frame includes the horizontal base and the fixed gas collection support that sets up in base one end, gas collection mechanism installs on the gas collection support.
Further, the gas collection support comprises a vertical rod and a horizontal cross rod, one end of the cross rod is connected with the vertical rod through a height adjusting piece, a horizontal adjusting piece is arranged on the cross rod, and the gas collection mechanism is installed on the horizontal adjusting piece.
Further, height adjusting spare includes the sliding sleeve, the sliding sleeve cover outside the montant and with montant sliding fit, be provided with on the sliding sleeve radially to run through the sliding sleeve and with sliding sleeve threaded connection's housing screw.
Further, horizontal adjusting part includes moving the cover, the horizontal pole is the threaded rod, move the cover on the horizontal pole and with horizontal pole threaded connection, move the cover and be provided with the go-between with moving cover normal running fit outward, the fixed accommodate the lead screw that is provided with in bottom of go-between, gas collection mechanism includes vertical rotation cover and gas collecting channel, the upper end cover that rotates the cover is outside accommodate the lead screw and with accommodate the lead screw thread fit, the lower extreme and the gas collecting channel normal running fit that rotate the cover.
Furthermore, an exhaust fan is arranged on the exhaust pipe, and a gas collecting fan is arranged on the gas collecting pipe.
Further, the filtering curved pipe is spiral.
Furthermore, the filtering curved pipe is arranged on the bottom plate of the purifying box through a seat body.
Furthermore, the gas collecting pipe is connected with the inlet end of the filtering curved pipe through a settling chamber, the settling chamber is cuboid, a first gas pipe and a second gas pipe are arranged in the settling chamber, one end of the first gas pipe is fixed on the side wall of one end of the settling chamber, the other end of the first gas pipe extends to the middle position of the settling chamber, one end of the second gas pipe is fixed on the side wall of the other end of the settling chamber, the other end of the second gas pipe extends to the middle position of the settling chamber, and the first gas pipe and the second gas pipe are coaxially arranged; an ash discharge port is formed in the bottom plate in the middle of the settling chamber, and an ash collecting box is arranged below the ash discharge port; the top plates at the two ends of the settling chamber are provided with air outlet holes, and the air outlet holes are connected with the filtering curved pipe through air outlet pipes; the gas collecting pipe is simultaneously connected with the first gas pipe and the second gas pipe through two branch pipes.
Furthermore, the ash collecting box is detachably connected with the settling chamber.
The invention has the beneficial effects that: waste gas produced by welding sequentially passes through the filtering curved pipe, the filtering box and the filtering plate, the flow path of the waste gas is increased, the treatment time of the waste gas is prolonged, and the treatment effect is improved through multiple filtering or adsorption.
Drawings
FIG. 1 is an overall schematic view of the present invention;
FIG. 2 is a schematic cross-sectional view of a filtration coil;
FIG. 3 is a schematic view of a settling chamber;
reference numerals: 1. a base plate; 2. a purification mechanism; 21. a purification box; 22. a base body; 23. filtering the curved pipe; 24. a short filter plate; 25. a gas collection fan; 26. a gas collecting pipe; 27. a delivery pipe; 28. a filter cartridge; 29. an activated carbon plate; 210. a filter plate; 3. A gas collection support; 31. a vertical rod; 32. a height adjustment member; 33. a cross bar; 34. moving the sleeve; 35. a connecting ring; 36. adjusting the screw rod; 4. a gas collection mechanism; 41. rotating the sleeve; 42. a gas-collecting hood; 5. an exhaust fan; 6. an exhaust pipe; 7-a settling chamber; 71-a first air tube; 72-a second air pipe; 73-ash discharge port; 74-ash collecting box; 75-an air outlet pipe; 76-branch pipe.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
As shown in fig. 1 and fig. 2, the waste gas treatment device for welding equipment of the present invention comprises a frame, wherein a gas collecting mechanism 4 and a purifying mechanism 2 are arranged on the frame, the purifying mechanism 2 comprises a purifying box 21, a curved filtering pipe 23, a filtering box 28 and a filtering plate 210 are arranged in the purifying box 21, an exhaust pipe 6 is arranged at one end of the purifying box 21, the gas collecting mechanism 4 is connected with an inlet end of the curved filtering pipe 23 through a gas collecting pipe 26, an outlet end of the curved filtering pipe 23 is connected with the filtering box 28 through a conveying pipe 27, and the filtering box 28, the filtering plate 210 and the exhaust pipe 6 are arranged in sequence; the inner wall of the filtering curved pipe 23 is provided with a plurality of filtering short plates 24 which are arranged in a staggered mode, and an activated carbon plate 29 is arranged in the filtering box 28.
The frame is used for installing other parts, can adopt the metal support body structure of various forms, specifically, the frame includes horizontal base 1 and the fixed gas collection support 3 that sets up in base 1 one end, gas collection mechanism 4 installs on gas collection support 3, and purification mechanism 2 installs on base 1. The gas collecting support 3 can be welded with the base 1 and can also be connected with the base 1 through bolts.
The gas collection support 3 can adopt a door-shaped support body or a support body with other structures, preferably, the gas collection support 3 comprises a vertical rod 31 and a horizontal cross rod 33, the vertical rod 31 is fixed on the base 1, one end of the cross rod 33 is connected with the vertical rod 31 through a height adjusting piece 32, a horizontal adjusting piece is arranged on the cross rod 33, and the gas collection mechanism 4 is installed on the horizontal adjusting piece. The height of horizontal pole 33 can be adjusted to height-adjusting part 32, and the horizontal position of horizontal adjusting part can change, installs gas collection mechanism 4 back in horizontal adjusting part, just can change the height and the horizontal position of gas collection mechanism 4 to move near the welding position with gas collection mechanism 4, improve the absorption effect of waste gas.
The height adjusting member 32 and the horizontal adjusting member may be a lifting mechanism such as a hydraulic cylinder, preferably, the height adjusting member 32 includes a sliding sleeve, the sliding sleeve is sleeved outside the vertical rod 31 and is in sliding fit with the vertical rod 31, and a compression screw radially penetrating through the sliding sleeve and in threaded connection with the sliding sleeve is arranged on the sliding sleeve. The cross rod 33 is fixedly connected with the sliding sleeve, and when the sliding sleeve is adjusted, the compression screw is loosened, the sliding sleeve is slid to a proper position, and then the compression screw is screwed, so that the sliding sleeve can be kept fixed.
The horizontal adjusting piece comprises a moving sleeve 34, the cross rod 33 is a threaded rod, the moving sleeve 34 is sleeved on the cross rod 33 and is in threaded connection with the cross rod 33, when the moving sleeve 34 is rotated, the moving sleeve 34 can horizontally move along the cross rod 33, a connecting ring 35 which is in running fit with the moving sleeve 34 is arranged outside the moving sleeve 34, when the moving sleeve 34 is rotated, the connecting ring 35 does not rotate but can synchronously move along with the moving sleeve 34, a circular positioning groove can be formed in the outer wall of the moving sleeve 34, and the connecting ring 35 is arranged in the positioning groove. And an adjusting screw rod 36 is fixedly arranged at the bottom of the connecting ring 35.
The gas collecting mechanism 4 is used for collecting waste gas generated during welding, specifically, the gas collecting mechanism 4 comprises a vertical rotating sleeve 41 and a gas collecting hood 42, the upper end of the rotating sleeve 41 is sleeved outside the adjusting screw rod 36 and is in threaded fit with the adjusting screw rod 36, and the lower end of the rotating sleeve 41 is in rotating fit with the gas collecting hood 42. When the rotating sleeve 41 is rotated, the rotating sleeve 41 can vertically move, so that the gas collecting hood 42 is driven to move up and down, and the height adjustment of the gas collecting hood 42 can be realized. The rotary sleeve 41 is used together with the height adjusting element 32 for adjusting the height of the gas collecting channel 42. Because the lower end of the rotating sleeve 41 is in rotating fit with the gas collecting channel 42, the gas collecting channel 42 cannot rotate synchronously with the rotating sleeve 41.
The purifying mechanism 2 is used for purifying the welding exhaust gas, specifically, the filtering curved pipe 23 is used for primarily filtering the exhaust gas, the activated carbon plate 29 in the filter box 28 is used for secondarily filtering the exhaust gas and absorbing part of the pollution components in the exhaust gas, and the filter plate 210 is used for thirdly filtering the exhaust gas. The filtering curved pipe 23 adopts a curved pipe to increase the flow path of the exhaust gas and prolong the residence time in the filtering curved pipe 23, thereby improving the filtering effect of the exhaust gas. Specifically, the curved filtering pipe 23 may be a coil pipe or a spiral pipe, the curved filtering pipe 23 is mounted on the bottom plate of the purifying box 21 through the seat 22, and a plurality of short filtering plates 24 as shown in fig. 2 are disposed in the curved filtering pipe 23, and the short filtering plates 24 may be grid plates, which can effectively trap solid particles in the exhaust gas. The filter box 28 is rectangular parallelepiped, the purifying box 21 is also rectangular parallelepiped, the end plate of the filter box 28 near one end of the filter curved tube 23 is provided with an air inlet, and the air inlet is connected with the outlet of the filter curved tube 23 through a delivery pipe 27. The end plate of the filter box 28 near the end of the filter plate 210 is provided with an air outlet for discharging the exhaust gas, and the periphery of the end plate is hermetically connected with the inner wall of the purification box 21 to prevent the exhaust gas from flowing back. The periphery of the filter plate 210 is also connected with the inner wall of the purification box 21 in a sealing way, so that the exhaust gas can be discharged only after being filtered by the filter plate 210.
The exhaust pipe 6 is used for exhausting filtered gas, the exhaust fan 5 is arranged on the exhaust pipe 6 and provides power for the exhaust of the purified gas, and the gas collecting fan 25 is arranged on the gas collecting pipe 26 and provides power for the absorption of welding waste gas.
As shown in fig. 3, the gas collecting pipe 26 is connected to the inlet end of the filtering curved pipe 23 through the settling chamber 7, the settling chamber 7 is rectangular, a first gas pipe 71 and a second gas pipe 72 are arranged in the settling chamber 7, one end of the first gas pipe 71 is fixed to the side wall of one end of the settling chamber 7, the other end of the first gas pipe 71 extends to the middle position of the settling chamber 7, one end of the second gas pipe 72 is fixed to the side wall of the other end of the settling chamber 7, the other end of the second gas pipe 72 extends to the middle position of the settling chamber 7, and the first gas pipe 71 and the second gas pipe 72 are coaxially arranged; an ash discharge port 73 is formed in the bottom plate in the middle of the settling chamber 7, and an ash collecting box 74 is arranged below the ash discharge port 73; air outlet holes are formed in the top plates at the two ends of the settling chamber 7 and are connected with the filtering curved pipe 23 through an air outlet pipe 75; the gas collecting duct 26 is connected to both the first gas duct 71 and the second gas duct 72 through two branch ducts 76.
Part of the waste gas in the gas collecting pipe 26 enters the settling chamber 7 through the first gas pipe 71, the other part of the waste gas enters the settling chamber 7 through the second gas pipe 72, the speed of the waste gas in the two parts is the same, the moving directions are opposite, the waste gas in the two parts reversely contacts at the middle position of the settling chamber 7, the solid particles in the waste gas in the two parts collide with each other, the kinetic energy of the solid particles is offset, the speed of the solid particles is greatly reduced, the solid particles fall to the bottom of the settling chamber 7 under the action of self weight, and the settled solid particles enter the ash collecting box 74 through the ash discharging port 73, so that large-particle solid impurities are removed. The waste gas carrying a small amount of solid impurities enters the filtering curved pipe 23 through the gas outlet pipe 75 for subsequent treatment.
The dust collecting box 74 is detachably connected with the settling chamber 7, and specifically, a bolt connection or the like can be adopted, so that the dust collecting box 74 can be periodically detached and the dust in the dust collecting box 74 can be cleaned.
The working process of the device is as follows: the position of the gas collecting hood 42 is adjusted according to the welding position, so that the gas collecting hood 42 is located near the welding position and welding operation is not affected, the gas collecting fan 25 and the exhaust fan 5 are started during welding, the gas collecting fan 25 generates suction force to suck the exhaust gas near the gas collecting hood 42, the exhaust gas is divided into two parts through the gas collecting pipe 26 to enter the settling chamber 7, the two parts enter the filtering curved pipe 23 after settling, the solid particles in the exhaust gas are intercepted by the plurality of filtering short plates 24 in the filtering curved pipe 23 to eliminate most of the solid particles, then the exhaust gas enters the filtering box 28 through the conveying pipe 27, and when the exhaust gas passes through the activated carbon plate 29 in the filtering box 28, the particles, the odorous polluted gas and the like in the exhaust gas are absorbed by the activated carbon and then discharged out of the filtering box 28, and under the action of the exhaust fan 5, the exhaust gas passes through the filtering plate 210 to be further filtered.
The device settles, filters or adsorbs the waste gas for many times, increases the flow path of the waste gas, prolongs the treatment time of the waste gas and improves the treatment effect.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. Waste gas treatment device for welding equipment, including the frame, be provided with gas collection mechanism (4) and purification mechanism (2) in the frame, its characterized in that: the purification mechanism (2) comprises a purification box (21), a filtering curved pipe (23), a filtering box (28) and a filtering plate (210) are arranged in the purification box (21), an exhaust pipe (6) is arranged at one end of the purification box (21), the gas collection mechanism (4) is connected with the inlet end of the filtering curved pipe (23) through a gas collection pipe (26), the outlet end of the filtering curved pipe (23) is connected with the filtering box (28) through a conveying pipe (27), and the filtering box (28), the filtering plate (210) and the exhaust pipe (6) are sequentially arranged; the inner wall of the filtering curved pipe (23) is provided with a plurality of filtering short plates (24) which are arranged in a staggered mode, and an activated carbon plate (29) is arranged in the filtering box (28).
2. The exhaust gas treatment device for a welding apparatus according to claim 1, wherein: the frame comprises a horizontal base (1) and a gas collection support (3) fixedly arranged at one end of the base (1), and the gas collection mechanism (4) is arranged on the gas collection support (3).
3. The exhaust gas treatment device for a welding apparatus according to claim 2, wherein: the gas collection support (3) comprises a vertical rod (31) and a horizontal cross rod (33), one end of the cross rod (33) is connected with the vertical rod (31) through a height adjusting piece (32), a horizontal adjusting piece is arranged on the cross rod (33), and the gas collection mechanism (4) is installed on the horizontal adjusting piece.
4. The exhaust gas treatment device for a welding apparatus according to claim 3, wherein: the height adjusting piece (32) comprises a sliding sleeve, the sliding sleeve is sleeved outside the vertical rod (31) and is in sliding fit with the vertical rod (31), and a compression screw which radially penetrates through the sliding sleeve and is in threaded connection with the sliding sleeve is arranged on the sliding sleeve.
5. The exhaust gas treatment device for a welding apparatus according to claim 3, wherein: horizontal adjustment spare is including removing cover (34), horizontal pole (33) are the threaded rod, remove cover (34) cover on horizontal pole (33) and with horizontal pole (33) threaded connection, remove cover (34) be provided with outward with remove cover (34) normal running fit's go-between (35), the fixed accommodate the lead screw (36) that is provided with in bottom of go-between (35), gas collection mechanism (4) are including vertical rotation cover (41) and gas collecting hood (42), the upper end cover that rotates cover (41) is outside accommodate the lead screw (36) and with accommodate the lead screw (36) screw-thread fit, the lower extreme and the gas collecting hood (42) normal running fit that rotate cover (41).
6. The exhaust gas treatment device for a welding apparatus according to claim 1, wherein: an exhaust fan (5) is arranged on the exhaust pipe (6), and a gas collecting fan (25) is arranged on the gas collecting pipe (26).
7. The exhaust gas treatment device for a welding apparatus according to claim 1, wherein: the filtering curved pipe (23) is spiral.
8. The exhaust gas treatment device for a welding apparatus according to claim 7, wherein: the filtering curved pipe (23) is arranged on the bottom plate of the purifying box (21) through a seat body (22).
9. The exhaust gas treatment device for a welding apparatus according to claim 1, wherein: the gas collecting pipe (26) is connected with the inlet end of the filtering curved pipe (23) through a settling chamber (7), the settling chamber (7) is cuboid, a first gas pipe (71) and a second gas pipe (72) are arranged in the settling chamber (7), one end of the first gas pipe (71) is fixed to the side wall of one end of the settling chamber (7), the other end of the first gas pipe (71) extends to the middle position of the settling chamber (7), one end of the second gas pipe (72) is fixed to the side wall of the other end of the settling chamber (7), the other end of the second gas pipe (72) extends to the middle position of the settling chamber (7), and the first gas pipe (71) and the second gas pipe (72) are coaxially arranged; an ash discharge port (73) is formed in the bottom plate in the middle of the settling chamber (7), and an ash collecting box (74) is arranged below the ash discharge port (73); air outlet holes are formed in the top plates at the two ends of the settling chamber (7), and the air outlet holes are connected with the filtering curved pipe (23) through an air outlet pipe (75); the gas collecting pipe (26) is simultaneously connected with a first gas pipe (71) and a second gas pipe (72) through two branch pipes (76).
10. The exhaust gas treatment device for a welding apparatus according to claim 9, wherein: the ash collecting box (74) is detachably connected with the settling chamber (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010579462.9A CN111672256A (en) | 2020-06-23 | 2020-06-23 | Waste gas treatment device for welding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010579462.9A CN111672256A (en) | 2020-06-23 | 2020-06-23 | Waste gas treatment device for welding equipment |
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| Publication Number | Publication Date |
|---|---|
| CN111672256A true CN111672256A (en) | 2020-09-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010579462.9A Pending CN111672256A (en) | 2020-06-23 | 2020-06-23 | Waste gas treatment device for welding equipment |
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| Country | Link |
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| CN (1) | CN111672256A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112588062A (en) * | 2020-11-28 | 2021-04-02 | 温州索纽环保科技有限公司 | Environment-friendly air dust collecting device for cement production workshop |
| CN114405225A (en) * | 2022-01-04 | 2022-04-29 | 北京加标环境科技有限公司 | Movable low-concentration VOCs collecting and processing method and device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105903303A (en) * | 2016-06-16 | 2016-08-31 | 李明 | Later-period inlet filtering treatment equipment for pharmaceutical tail gas |
| CN106178612A (en) * | 2015-05-28 | 2016-12-07 | 隋原 | The polymerization of fine particle that a kind of is carried by medium fluid the device separated with former medium fluid, system and method |
| CN107583376A (en) * | 2017-10-31 | 2018-01-16 | 广东骏亚电子科技股份有限公司 | A kind of dust-precipitating system |
| CN210304973U (en) * | 2019-06-27 | 2020-04-14 | 河南蓝云智能设备有限公司 | Welding smog discharges and clean system |
-
2020
- 2020-06-23 CN CN202010579462.9A patent/CN111672256A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106178612A (en) * | 2015-05-28 | 2016-12-07 | 隋原 | The polymerization of fine particle that a kind of is carried by medium fluid the device separated with former medium fluid, system and method |
| CN105903303A (en) * | 2016-06-16 | 2016-08-31 | 李明 | Later-period inlet filtering treatment equipment for pharmaceutical tail gas |
| CN107583376A (en) * | 2017-10-31 | 2018-01-16 | 广东骏亚电子科技股份有限公司 | A kind of dust-precipitating system |
| CN210304973U (en) * | 2019-06-27 | 2020-04-14 | 河南蓝云智能设备有限公司 | Welding smog discharges and clean system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112588062A (en) * | 2020-11-28 | 2021-04-02 | 温州索纽环保科技有限公司 | Environment-friendly air dust collecting device for cement production workshop |
| CN114405225A (en) * | 2022-01-04 | 2022-04-29 | 北京加标环境科技有限公司 | Movable low-concentration VOCs collecting and processing method and device |
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Application publication date: 20200918 |