CN213995371U - Paint spraying waste gas treatment device of paint spraying chamber - Google Patents

Paint spraying waste gas treatment device of paint spraying chamber Download PDF

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Publication number
CN213995371U
CN213995371U CN202023091006.4U CN202023091006U CN213995371U CN 213995371 U CN213995371 U CN 213995371U CN 202023091006 U CN202023091006 U CN 202023091006U CN 213995371 U CN213995371 U CN 213995371U
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pipe
box
spraying
shell
fixedly connected
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CN202023091006.4U
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Chinese (zh)
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陈学才
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Yangzhou Chengxin Coating Equipment Co ltd
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Yangzhou Chengxin Coating Equipment Co ltd
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Abstract

The utility model discloses a paint spraying waste gas treatment device of paint spray booth, concretely relates to paint spraying waste gas treatment equipment field, including first intake pipe, the fixed first shell that is provided with of first intake pipe one end, first shell inboard is provided with first motor, the fixed first support frame that is provided with in the first motor outside, first support frame and the inboard fixed connection of first shell, first support frame quantity sets up to a plurality of, the fixed first flabellum that is provided with of first motor one end, the fixed second support frame that is provided with in the first shell outside, the fixed case that sprays that is provided with of second support frame one end. The utility model discloses exhaust purification degree is high, and convenient to use can make the even venthole of following the aiutage outside of waste gas discharge through setting up the aiutage, conveniently purifies the absorption to waste gas, can spray the purification to the venthole exhaust waste gas from the aiutage outside through setting up the shower nozzle.

Description

Paint spraying waste gas treatment device of paint spraying chamber
Technical Field
The utility model relates to a paint spraying waste gas treatment equipment technical field, more specifically say, the utility model relates to a paint spraying waste gas treatment device of paint spray booth.
Background
All need all pass through the spray painting technology after the metal product shaping, the confined spray painting room has all been built to general enterprise, set up special exhaust duct in the spray painting room, in order to prevent the waste gas pollution environment that product spray painting technology produced, generally discharge in the atmosphere behind the exhaust-gas treatment equipment in the spray painting room, the exhaust-gas treatment equipment that sprays paint generally comprises preprocessing device, the spray column, adsorption equipment, the fan, waste gas in the spray painting room gets into preprocessing device through exhaust duct and carries out the preliminary treatment, waste gas after the preliminary treatment gets into the spray column, then import to adsorption equipment from the spray column export, adsorption equipment adsorbs the pollutant in the waste gas clean back, pure gas is pumped to the atmosphere by the fan of installing in the adsorption equipment export.
However, in practical use, the treatment efficiency and quality of the existing paint spraying waste gas treatment device can not meet the requirements, and the waste gas treatment effect is poor, so that further improvement and perfection are needed.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above-mentioned defect of prior art, the embodiment of the utility model provides a paint spraying waste gas treatment device of paint spray booth sprays the mechanism through setting up, and exhaust purification degree is high, convenient to use, and the aiutage can make the even venthole of following the aiutage outside of waste gas discharge, conveniently purifies the absorption to waste gas, and the shower nozzle can spray the purification to the venthole exhaust waste gas from the aiutage outside to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a paint spraying waste gas treatment device of a paint spraying chamber comprises a first air inlet pipe, wherein one end of the first air inlet pipe is fixedly provided with a first shell, the inner side of the first shell is provided with a first motor, the outer side of the first motor is fixedly provided with a first support frame, the first support frame is fixedly connected with the inner side of the first shell, the number of the first support frames is multiple, one end of the first motor is fixedly provided with a first fan blade, the outer side of the first shell is fixedly provided with a second support frame, one end of the second support frame is fixedly provided with a spraying box, the other side of the first shell is fixedly provided with a second air inlet pipe, the second air inlet pipe penetrates through the spraying box and extends into the spraying box, one end of the second air inlet pipe is fixedly provided with an exhaust funnel, the outer side of the exhaust funnel is provided with an air outlet, and the spraying mechanism is arranged in the spraying box;
the spraying mechanism comprises a first water pipe, the first water pipe penetrates through the spraying box and extends to the outer side of the spraying box, a water pump is arranged at one end of the first water pipe, the bottom of the water pump is fixedly connected with one end of the first water pipe, one side of the water pump is fixedly connected with one side of the spraying box, a second water pipe is arranged at the top of the water pump, the second water pipe is fixedly connected with the top of the water pump, a fixed block is arranged at one side of the second water pipe, one side of the fixed block is fixedly connected with one side of the second water pipe, the other side of the fixed block is fixedly connected with one side of the spraying box, the second water pipe penetrates through the top of the spraying box and extends into the spraying box, a third water pipe is arranged at one end of the second water pipe, the third water pipe is fixedly connected with the second water pipe, a spray head is arranged at one side of the third water pipe, the spray head is fixedly connected with the third water pipe, and the number of the spray heads is multiple, the spraying box is characterized in that a first filtering plate is arranged on the inner side of the spraying box, the first filtering plate is fixedly connected with the inner side of the spraying box, a first hairbrush is arranged at the bottom of the first filtering plate, a first electric telescopic rod is arranged on one side of the first hairbrush, the first electric telescopic rod is fixedly connected with the first hairbrush, one end of the first electric telescopic rod is fixedly connected with the inner side of the spraying box, a second filtering plate is arranged on the inner side of the spraying box, the second filtering plate is fixedly connected with the inner side of the spraying box, a second hairbrush is arranged at the top of the second filtering plate, a second electric telescopic rod is fixedly arranged on one side of the second hairbrush, and one end of the second electric telescopic rod is fixedly connected with the inner side of the spraying box.
In a preferred embodiment, spraying case top one side is provided with first blast pipe, first blast pipe and spraying case fixed connection, first blast pipe one end is provided with purification mechanism, purification mechanism includes the purifying box, the purifying box inboard is provided with the moisture absorption layer, moisture absorption layer and the inboard fixed connection of purifying box, the moisture absorption layer top is provided with the activated carbon layer, activated carbon layer and the inboard fixed connection of purifying box, activated carbon layer top is provided with the HEPA layer, HEPA layer and the inboard fixed connection of purifying box.
In a preferred embodiment, a drain pipe is arranged on one side of the bottom of the spraying box, the drain pipe penetrates through one side of the bottom of the spraying box and extends into the spraying box, and a valve is fixedly arranged at one end of the drain pipe and is fixedly connected with the drain pipe.
In a preferred embodiment, the top of the purification box is provided with a second exhaust pipe, the second exhaust pipe is fixedly connected with the top of the purification box, the top of the second exhaust pipe is provided with a second shell, and the second exhaust pipe penetrates through the bottom of the second shell and extends into the second shell.
In a preferred embodiment, a third supporting frame is arranged inside the second casing, the third supporting frame is fixedly connected with the inside of the second casing, and the number of the third supporting frames is multiple.
In a preferred embodiment, one end of the third support frame is provided with a second motor, the second motor is fixedly connected with the third support frame, and the top of the second motor is fixedly provided with a second fan blade.
In a preferred embodiment, a plurality of fourth support frames are fixedly arranged at the bottom of the second casing, and a third exhaust pipe is arranged at the top of the second casing and penetrates through the second casing and extends to the inner side of the second casing.
The utility model discloses a technological effect and advantage:
1. through arranging the spraying mechanism, the spray painting waste gas is sprayed by the purifying liquid, the first filter plate and the second filter plate filter the waste residues after the purifying liquid is purified and absorbed, the first electric telescopic rod drives the first hairbrush to clean the first filter plate, the second electric telescopic rod drives the second hairbrush to clean the second filter plate, compared with the prior art, the waste gas purifying degree is high, the use is convenient, the waste gas can be uniformly discharged from the air outlet hole outside the exhaust funnel through arranging the exhaust funnel, the waste gas is conveniently purified and absorbed, the waste gas discharged from the air outlet hole outside the exhaust funnel can be sprayed and purified through arranging the nozzle, the waste residues absorbed by the purifying liquid can be directly filtered through arranging the first filter plate and the second filter plate, the purifying liquid can be recycled, the first electric telescopic rod drives the first hairbrush and the second electric telescopic rod to drive the second hairbrush so as to clean the first filter plate and the second filter plate, prevent the filter mesh from being blocked;
2. through setting up purification mechanism, moisture in the gas is inhaled on the moisture absorption layer, peculiar smell in the gas is inhaled on the activated carbon layer, the further high efficiency filtration in HEPA layer, the second motor drives the second flabellum, gas outgoing after filtering through the second blast pipe, compared with the prior art, adsorption efficiency is stronger, carry out more effective filtration to the peculiar smell in the waste gas, the HEPA layer can absorb the poisonous harmful substance in the waste gas after spraying the purification, can absorb the steam in the waste gas through setting up the moisture absorption layer.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is the schematic diagram of the filtering structure of the spraying box of the present invention.
Fig. 4 is a cross-sectional view of a first housing of the present invention.
The reference signs are: 1. a first intake pipe; 2. a first housing; 3. a first motor; 4. a first support frame; 5. a first fan blade; 6. a second support frame; 7. a spray box; 8. a second intake pipe; 9. an exhaust funnel; 10. an air outlet; 11. a first water pipe; 12. a water pump; 13. a second water pipe; 14. a fixed block; 15. a third water pipe; 16. a spray head; 17. a first filter plate; 18. a first brush; 19. a first electric telescopic rod; 20. a second filter plate; 21. a second brush; 22. a second electric telescopic rod; 23. a first exhaust pipe; 24. a purification box; 25. a moisture-absorbing layer; 26. an activated carbon layer; 27. a HEPA layer; 28. a drain pipe; 29. a valve; 30. a second exhaust pipe; 31. a second housing; 32. a third support frame; 33. a second motor; 34. a second fan blade; 35. a fourth support frame; 36. and a third exhaust pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The paint spraying waste gas treatment device of the paint spraying chamber shown in the attached figures 1-4 comprises a first air inlet pipe 1, one end of the first air inlet pipe 1 is fixedly provided with a first shell 2, the inner side of the first shell 2 is provided with a first motor 3, the outer side of the first motor 3 is fixedly provided with a first support frame 4, the first support frame 4 is fixedly connected with the inner side of the first shell 2, the number of the first support frames 4 is multiple, one end of the first motor 3 is fixedly provided with a first fan blade 5, the outer side of the first shell 2 is fixedly provided with a second support frame 6, one end of the second support frame 6 is fixedly provided with a spraying box 7, the other side of the first shell 2 is fixedly provided with a second air inlet pipe 8, the second air inlet pipe 8 penetrates through the spraying box 7 and extends into the spraying box, one end of the second air inlet pipe 8 is fixedly provided with an exhaust pipe 9, the outer side of the exhaust pipe 9 is provided with an air outlet 10, and the spraying mechanism is arranged inside the spraying box 7;
the spraying mechanism comprises a first water pipe 11, the first water pipe 11 penetrates through the spraying box 7 and extends to the outer side of the spraying box 7, one end of the first water pipe 11 is provided with a water pump 12, the bottom of the water pump 12 is fixedly connected with one end of the first water pipe 11, one side of the water pump 12 is fixedly connected with one side of the spraying box 7, the top of the water pump 12 is provided with a second water pipe 13, the second water pipe 13 is fixedly connected with the top of the water pump 12, one side of the second water pipe 13 is provided with a fixed block 14, one side of the fixed block 14 is fixedly connected with one side of the second water pipe 13, the other side of the fixed block 14 is fixedly connected with one side of the spraying box 7, the second water pipe 13 penetrates through the top of the spraying box 7 and extends to the inner part of the spraying box 7, one end of the second water pipe 13 is provided with a third water pipe 15, the third water pipe 15 is fixedly connected with the second water pipe 13, one side of the third water pipe 15 is provided with a spray head 16, the spray head 16 is fixedly connected with the third water pipe 15, the spray head 16 is provided with a plurality of spray heads, spray 7 inboards of case and be provided with first filter 17, first filter 17 with spray 7 inboard fixed connection of cases, first filter 17 bottom is provided with first brush 18, first brush 18 one side is provided with first electric telescopic handle 19, first electric telescopic handle 19 and first brush 18 fixed connection, 19 one end of first electric telescopic handle with spray 7 inboard fixed connection of case, it is provided with second filter 20 to spray 7 inboards of case, second filter 20 with spray 7 inboard fixed connection of cases, 20 tops of second filter are provided with second brush 21, the fixed second electric telescopic handle 22 that is provided with in second brush 21 one side, 22 one end of second electric telescopic handle with spray 7 inboard fixed connection of cases.
As shown in fig. 1, one side of the top of the spraying box 7 is provided with a first exhaust pipe 23, the first exhaust pipe 23 is fixedly connected with the spraying box 7, one end of the first exhaust pipe 23 is provided with a purification mechanism, the purification mechanism comprises a purification box 24, the inner side of the purification box 24 is provided with a moisture absorption layer 25, the moisture absorption layer 25 is fixedly connected with the inner side of the purification box 24, the top of the moisture absorption layer 25 is provided with an activated carbon layer 26, the activated carbon layer 26 is fixedly connected with the inner side of the purification box 24, the top of the activated carbon layer 26 is provided with a HEPA layer 27, the HEPA layer 27 is fixedly connected with the inner side of the purification box 24, and the purification mechanism is used for further adsorbing and filtering the waste gas.
As shown in fig. 1, a drain pipe 28 is disposed at one side of the bottom of the spray box 7, the drain pipe 28 penetrates one side of the bottom of the spray box 7 and extends into the spray box, a valve 29 is fixedly disposed at one end of the drain pipe 28, the valve 29 is fixedly connected with the drain pipe 28, and the drain pipe 28 and the valve 29 are used for discharging the used purified liquid.
As shown in fig. 1, a second exhaust pipe 30 is disposed at the top of the purification box 24, the second exhaust pipe 30 is fixedly connected to the top of the purification box 24, a second housing 31 is disposed at the top of the second exhaust pipe 30, the second exhaust pipe 30 penetrates the bottom of the second housing 31 and extends into the second housing, and a third exhaust pipe 36 is disposed at the bottom of the second housing 31 for conveying the exhaust gas.
As shown in fig. 1, a third supporting frame 32 is disposed inside the second housing 31, the third supporting frame 32 is fixedly connected to the inside of the second housing 31, the number of the third supporting frames 32 is multiple, and the third supporting frames 32 are convenient for fixing the second motor 33.
As shown in fig. 1, one end of the third support frame 32 is provided with a second motor 33, the second motor 33 is fixedly connected with the third support frame 32, the top of the second motor 33 is fixedly provided with a second fan blade 34, and the second motor 33 and the second fan blade 34 are convenient for exhausting air and discharging filtered air.
As shown in fig. 1, a fourth supporting frame 35 is fixedly disposed at the bottom of the second housing 31, a plurality of fourth supporting frames 35 are disposed, a third exhaust pipe 36 is disposed at the top of the second housing 31, the third exhaust pipe 36 penetrates through the second housing 31 and extends to the inner side thereof, and the fourth supporting frames 35 and the third exhaust pipe 36 are disposed to facilitate fixing of the second housing 31 and discharge of filtered gas.
The utility model discloses the theory of operation: when the utility model is used, firstly, the first motor 3 drives the first fan blade 5 to rotate, the paint spraying waste gas is sucked into the second air inlet pipe 8 through the first air inlet pipe 1 and enters the spraying box 7 through the air outlet 10 outside the exhaust funnel 9, the water pump 12 extracts the purifying liquid at the bottom of the spraying box 7 through the first water pipe 11 and enters the third water pipe 15 along the second water pipe 13, then the purifying liquid is sprayed through the spray head 16 at the bottom of the third water pipe 15, the paint spraying waste gas is sprayed through the purifying liquid, the purifying liquid is filtered by the first filter plate 17 and the second filter plate 20 to purify and absorb the waste residue, the first electric telescopic rod 19 drives the first brush 18 to clean the first filter plate 17, the second electric telescopic rod 22 drives the second brush 21 to clean the second filter plate 20, then the waste gas is introduced into the purifying box 24 through the first exhaust pipe 23, the moisture in the gas is absorbed through the moisture absorption layer 25, the active carbon layer 26 absorbs the peculiar smell of the gas, the HEPA layer 27 further filters efficiently, the second motor 33 drives the second fan blades 34, the filtered gas is discharged through the second exhaust pipe 30, and after the use, the valve 29 is opened to discharge the waste purifying liquid.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;
and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. The utility model provides a paint spraying exhaust treatment device of paint spray booth, includes first intake pipe (1), its characterized in that: a first shell (2) is fixedly arranged at one end of the first air inlet pipe (1), a first motor (3) is arranged in the first shell (2), a first support frame (4) is fixedly arranged at the outer side of the first motor (3), the first support frame (4) is fixedly connected with the inner side of the first shell (2), a plurality of first support frames (4) are arranged, a first fan blade (5) is fixedly arranged at one end of the first motor (3), a second support frame (6) is fixedly arranged at the outer side of the first shell (2), a spray box (7) is fixedly arranged at one end of the second support frame (6), a second air inlet pipe (8) is fixedly arranged at the other side of the first shell (2), the second air inlet pipe (8) penetrates through the spray box (7) and extends into the spray box, an exhaust funnel (9) is fixedly arranged at one end of the second air inlet pipe (8), an air outlet (10) is formed in the outer side of the exhaust funnel (9), and a spraying mechanism is arranged in the spraying box (7);
the spraying mechanism comprises a first water pipe (11), the first water pipe (11) penetrates through the spraying box (7) and extends to the outer side of the spraying box (7), a water pump (12) is arranged at one end of the first water pipe (11), the bottom of the water pump (12) is fixedly connected with one end of the first water pipe (11), one side of the water pump (12) is fixedly connected with one side of the spraying box (7), a second water pipe (13) is arranged at the top of the water pump (12), the second water pipe (13) is fixedly connected with the top of the water pump (12), a fixed block (14) is arranged at one side of the second water pipe (13), one side of the fixed block (14) is fixedly connected with one side of the second water pipe (13), the other side of the fixed block (14) is fixedly connected with one side of the spraying box (7), the second water pipe (13) penetrates through the top of the spraying box (7) and extends to the inner part of the spraying box (7), a third water pipe (15) is arranged at one end of the second water pipe (13), the third water pipe (15) is fixedly connected with the second water pipe (13), a spray head (16) is arranged at one side of the third water pipe (15), the spray head (16) is fixedly connected with the third water pipe (15), the number of the spray heads (16) is multiple, a first filter plate (17) is arranged at the inner side of the spraying box (7), the first filter plate (17) is fixedly connected with the inner side of the spraying box (7), a first brush (18) is arranged at the bottom of the first filter plate (17), a first electric telescopic rod (19) is arranged at one side of the first brush (18), the first electric telescopic rod (19) is fixedly connected with the first brush (18), one end of the first electric telescopic rod (19) is fixedly connected with the inner side of the spraying box (7), a second filter plate (20) is arranged at the inner side of the spraying box (7), the novel spraying device is characterized in that the second filter plate (20) is fixedly connected with the inner side of the spraying box (7), a second brush (21) is arranged at the top of the second filter plate (20), a second electric telescopic rod (22) is fixedly arranged on one side of the second brush (21), and one end of the second electric telescopic rod (22) is fixedly connected with the inner side of the spraying box (7).
2. The exhaust gas treatment device for paint spraying of a paint spray booth according to claim 1, wherein: spray case (7) top one side and be provided with first blast pipe (23), first blast pipe (23) with spray case (7) fixed connection, first blast pipe (23) one end is provided with purification mechanism, purification mechanism includes purifying box (24), purifying box (24) inboard is provided with moisture absorption layer (25), moisture absorption layer (25) and purifying box (24) inboard fixed connection, moisture absorption layer (25) top is provided with activated carbon layer (26), activated carbon layer (26) and purifying box (24) inboard fixed connection, activated carbon layer (26) top is provided with HEPA layer (27), HEPA layer (27) and purifying box (24) inboard fixed connection.
3. The exhaust gas treatment device for paint spraying of a paint spray booth according to claim 1, wherein: spray case (7) bottom one side and be provided with drain pipe (28), drain pipe (28) run through spray case (7) bottom one side and extend to inside, drain pipe (28) one end is fixed and is provided with valve (29), valve (29) and drain pipe (28) fixed connection.
4. The exhaust gas treatment device for paint spraying of a paint spray booth according to claim 2, wherein: the top of the purification box (24) is provided with a second exhaust pipe (30), the second exhaust pipe (30) is fixedly connected with the top of the purification box (24), the top of the second exhaust pipe (30) is provided with a second shell (31), and the second exhaust pipe (30) penetrates through the bottom of the second shell (31) and extends to the inside of the second shell.
5. The exhaust gas treatment device for paint spraying of a paint spray booth according to claim 4, wherein: the inner side of the second shell (31) is provided with a third support frame (32), the third support frame (32) is fixedly connected with the inner side of the second shell (31), and the number of the third support frames (32) is set to be multiple.
6. The exhaust gas treatment device for paint spraying of a paint spray booth according to claim 5, wherein: third support frame (32) one end is provided with second motor (33), second motor (33) and third support frame (32) fixed connection, second motor (33) output end is fixed and is provided with second flabellum (34).
7. The exhaust gas treatment device for paint spraying of a paint spray booth according to claim 4, wherein: the bottom of the second shell (31) is fixedly provided with fourth support frames (35), the number of the fourth support frames (35) is multiple, the top of the second shell (31) is provided with a third exhaust pipe (36), and the third exhaust pipe (36) penetrates through the second shell (31) and extends to the inner side of the second shell.
CN202023091006.4U 2020-12-21 2020-12-21 Paint spraying waste gas treatment device of paint spraying chamber Active CN213995371U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202023091006.4U CN213995371U (en) 2020-12-21 2020-12-21 Paint spraying waste gas treatment device of paint spraying chamber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202023091006.4U CN213995371U (en) 2020-12-21 2020-12-21 Paint spraying waste gas treatment device of paint spraying chamber

Publications (1)

Publication Number Publication Date
CN213995371U true CN213995371U (en) 2021-08-20

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Application Number Title Priority Date Filing Date
CN202023091006.4U Active CN213995371U (en) 2020-12-21 2020-12-21 Paint spraying waste gas treatment device of paint spraying chamber

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114700175A (en) * 2022-04-12 2022-07-05 如皋市井上捏和机械厂 Contraction type waste gas exhaust apparatus of kneading machine
CN115253642A (en) * 2022-08-16 2022-11-01 肇庆宏旺金属实业有限公司 Stainless steel cold rolling area pickling exhaust treatment device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114700175A (en) * 2022-04-12 2022-07-05 如皋市井上捏和机械厂 Contraction type waste gas exhaust apparatus of kneading machine
CN114700175B (en) * 2022-04-12 2024-05-24 如皋市井上捏和机械厂 Shrinkage type waste gas exhausting device of kneader
CN115253642A (en) * 2022-08-16 2022-11-01 肇庆宏旺金属实业有限公司 Stainless steel cold rolling area pickling exhaust treatment device
CN115253642B (en) * 2022-08-16 2024-03-19 肇庆宏旺金属实业有限公司 Stainless steel cold rolling belt pickling exhaust treatment device

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