CN114159909A - Online spraying and dust removing device for bar production - Google Patents

Online spraying and dust removing device for bar production Download PDF

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Publication number
CN114159909A
CN114159909A CN202111486726.7A CN202111486726A CN114159909A CN 114159909 A CN114159909 A CN 114159909A CN 202111486726 A CN202111486726 A CN 202111486726A CN 114159909 A CN114159909 A CN 114159909A
Authority
CN
China
Prior art keywords
rod
water
fixed mounting
water box
dust removal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111486726.7A
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Chinese (zh)
Inventor
梁丽云
陈晓
赵忠健
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xinjiang Bayi Iron and Steel Co Ltd
Original Assignee
Xinjiang Bayi Iron and Steel Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xinjiang Bayi Iron and Steel Co Ltd filed Critical Xinjiang Bayi Iron and Steel Co Ltd
Priority to CN202111486726.7A priority Critical patent/CN114159909A/en
Publication of CN114159909A publication Critical patent/CN114159909A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D47/00Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/06Spray cleaning
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/60Arrangements for mounting, supporting or holding spraying apparatus
    • B05B15/62Arrangements for supporting spraying apparatus, e.g. suction cups
    • B05B15/625Arrangements for supporting spraying apparatus, e.g. suction cups designed to be placed on the ground
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/60Arrangements for mounting, supporting or holding spraying apparatus
    • B05B15/62Arrangements for supporting spraying apparatus, e.g. suction cups
    • B05B15/628Arrangements for supporting spraying apparatus, e.g. suction cups of variable length
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B9/00Measures for carrying out rolling operations under special conditions, e.g. in vacuum or inert atmosphere to prevent oxidation of work; Special measures for removing fumes from rolling mills

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Abstract

The invention discloses an on-line spray dust removal device for bar production, which comprises a threaded rod, a top plate, a water storage tank, a water pump, a first water outlet box and a second water outlet box, wherein the threaded rod is rotated to enable a lower pressing plate to move downwards to be in contact with the ground, so that the position of the device on the ground is positioned, an adjusting slide block slides on a slide rail, so that the height of a handle is adjusted, the requirements of different heights of the handle under different conditions are met, an adjusting rod body stretches in a cylinder body, so that the height of the top plate is adjusted, the requirements of different heights of the top plate under different conditions are met, the rod body is extruded by utilizing a threaded through hole formed in the outer side of the cylinder body through a bolt to rotate, so that the position of the rod body is limited, water in the water storage tank is sent into the first water outlet box and the second water outlet box through a water guide pipe and a water guide hose by utilizing the water pump, and is further sprayed out through the first spray head and the second spray head, thereby realize the dust fall of spraying to the dust that produces in the stick line production process.

Description

Online spraying and dust removing device for bar production
Technical Field
The invention relates to an online spraying dust removal device for bar production.
Background
At present stick wire rod rolling line in rolling process, the roll rotates at a high speed and extrudes the rolled piece, can produce a large amount of dust, can cause dust pollution along with going on of production, and a large amount of dust is attached to other equipment, can influence equipment life to a certain extent, can bring serious occupational health harm to post personnel even.
Disclosure of Invention
The invention aims to provide an on-line spraying dust removal device for bar production, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: an online spray dust removal device for bar production comprises a top plate, wherein a first lifting device and a second lifting device are symmetrically arranged at the bottom of the top plate, the first lifting device comprises a rod body, a barrel body, a handle, a push rod, a bottom plate, walking wheels, a slide rail and a lateral spray device, the barrel body is fixedly arranged at the top of the bottom plate, the rod body is arranged in the barrel body in a sliding manner, the top end of the rod body extends out of the barrel body and is fixedly arranged at the bottom of the top plate, threaded through holes used for being in threaded connection with bolts are symmetrically formed in the outer side of the barrel body just opposite to the position of the rod body, the lateral spray device is arranged on one side of the rod body, the walking wheels are symmetrically arranged at the bottom of the bottom plate, a water storage tank is fixedly arranged at the top of the top plate, a water outlet of the water storage tank is connected with a water inlet of a water pump through a water guide pipe, the water pump is fixedly arranged at the top of the top plate, a water outlet of the water pump is connected with one end of a four-through water guide pipe, the other end of four-way pipe is connected with the water inlet that the second goes out the water box through the water guide hose, the third end of four-way pipe passes through the water guide pipe and is connected with the water inlet of first play water box, first play water box passes through connecting rod fixed mounting in the roof bottom, first play water box bottom fixed mounting has the first shower of a plurality of, the water inlet and the inside intercommunication of first play water box of first shower, the fourth end of four-way pipe is connected with the play water box among the second elevating gear through the water guide hose, roof top fixed mounting has the switch.
As a further scheme of the invention: the bottom plate is provided with a threaded rod in a penetrating mode, a lower pressing plate is fixedly mounted at the bottom of the threaded rod, and a threaded through hole used for being in threaded connection with the threaded rod is formed in the bottom plate.
As a still further scheme of the invention: the bottom of the lower pressing plate is fixedly connected with a rubber pad.
As a still further scheme of the invention: barrel one side fixed mounting has the slide rail, stopper of both ends difference fixedly connected with of slide rail, it is provided with the slider to slide on the slide rail, just offer the screw thread through-hole that is used for with bolt threaded connection to the position of slide rail on the slider, slider one side fixed mounting has the one end of push rod, the other end fixedly connected with handle of push rod, the push rod sets up for the slope.
As a still further scheme of the invention: side direction spray set includes the fixed block, changes pearl, second and goes out water box, second shower head and rotation groove, fixed block fixed mounting is in body of rod one side, the rotation groove has been seted up to fixed block one side, and the rotation inslot internal rotation is provided with changes the pearl, change the pearl part protrusion and rotate the groove and go out the water box through connecting rod fixedly connected with second, second goes out water box one side fixed mounting and has a plurality of second shower head, the water inlet and the inside intercommunication of second play water box of second shower head.
As a still further scheme of the invention: the inner wall of the rotating groove is fixedly connected with a rubber pad.
As a still further scheme of the invention: the first lifting device and the second lifting device are identical in structure and specifications of all parts.
As a still further scheme of the invention: the water pump is electrically connected with the switch through a wire, and the switch is electrically connected with an external power supply through a wire.
Compared with the prior art, the invention has the beneficial effects that:
1. the walking wheels are arranged to facilitate the device to move freely, and the handle is arranged to facilitate an operator to push the device to move, so that the portability of the device is improved;
2. when the device needs to be positioned, the threaded rod is rotated so that the lower pressing plate moves downwards to be in contact with the ground, the position of the device on the ground is positioned, and the friction force between the bottom surface of the lower pressing plate and the ground is increased by arranging the rubber pad, so that the effect of positioning the device on the ground is further improved;
3. the adjusting slide block slides on the slide rail, so that the height of the handle is adjusted, different height requirements of the handle under different conditions are met, the slide rail is further extruded by utilizing the rotation of the bolt in the threaded through hole formed in the slide block, the position of the slide block on the slide rail is positioned, the adjusting rod body stretches and contracts in the cylinder body, so that the height of the top plate is adjusted, different height requirements of the top plate under different conditions are met, the rod body is extruded by utilizing the rotation of the bolt in the threaded through hole formed in the outer side of the cylinder body, and the position of the rod body is limited;
4. water in the water storage tank is conveyed into the first water outlet box and the second water outlet box through the water guide pipe and the water guide hose by using the water pump and is further sprayed out through the first spray header and the second spray header, so that dust generated in the production process of the bar and wire is sprayed and reduced;
5. the rotation is wiped in the rotation to the regulation of pearl is changeed in the rotation to the realization is to the regulation of second play water box inclination, satisfies the demand to the different inclination of second play water box under the different situation, sets up the rubber pad and is used for avoiding changeing the pearl and takes place to rotate in the rotation groove under the condition that does not receive external force, has guaranteed the stability of second play water box position.
Drawings
Fig. 1 is a schematic structural diagram of a spray dust removal device for bar line production.
Fig. 2 is a schematic structural diagram of a first lifting device in the spray dust removal device for bar line production.
Fig. 3 is a schematic structural diagram of a lateral spraying device in the spraying dust removal device for the production of the bar line.
Fig. 4 is a schematic structural diagram of an outlet A in the spray dust removal device for the production of the bar line.
Fig. 5 is a schematic structural diagram of a first water outlet box in the spray dust removal device produced by the bar line.
Shown in the figure: the water spraying device comprises a first lifting device 1, a top plate 2, a four-way pipe 3, a water pump 4, a first water outlet box 5, a first spray header 6, a water storage tank 7, a switch 8, a second lifting device 9, a rod body 10, a cylinder body 11, a handle 12, a push rod 13, a bottom plate 14, a walking wheel 15, a slide block 16, a slide rail 17, a lateral spray device 18, a fixed block 19, a rotating ball 20, a second water outlet box 21, a second spray header 22, a rotating groove 23, a threaded rod 24, a lower pressing plate 25 and a rubber pad 26.
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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 5, in an embodiment of the present invention, an online spraying dust removing device for a bar production includes a first lifting device 1, a top plate 2, a four-way pipe 3, a water pump 4, a first water outlet box 5, a first spray head 6, a water storage tank 7, a switch 8, a second lifting device 9, a bar body 10, a cylinder body 11, a handle 12, a push rod 13, a bottom plate 14, a traveling wheel 15, a slider 16, a sliding rail 17, a lateral spray device 18, a fixed block 19, a rotating bead 20, a second water outlet box 21, a second spray head 22, a rotating tank 23, a threaded rod 24, a lower press plate 25 and a rubber pad 26, the first lifting device 1 and the second lifting device 9 are symmetrically disposed at the bottom of the top plate 2, the first lifting device 1 includes the bar body 10, the cylinder body 11, the handle 12, the push rod 13, the bottom plate 14, the traveling wheel 15, the slider 16, the sliding rail 17, the lateral spray device 18, the threaded rod 24, the lower press plate 25 and the rubber pad 26, the top of the bottom plate 14 is fixedly provided with a barrel body 11, the barrel body 11 is internally provided with a rod body 10 in a sliding manner, the top end of the rod body 10 extends out of the barrel body 11 and is fixedly arranged at the bottom of the top plate 2, the outer side of the barrel body 11 is just opposite to the position symmetry of the rod body 10 and is provided with a threaded through hole for being in threaded connection with a bolt, one side of the rod body 10 is provided with a lateral spraying device 18, walking wheels 15 are symmetrically arranged at the bottom of the bottom plate 14, a threaded rod 24 penetrates through the bottom plate 14, the bottom of the threaded rod 24 is fixedly provided with a lower pressing plate 25, the bottom of the lower pressing plate 25 is fixedly connected with a rubber pad 26, the bottom plate 14 is provided with a threaded through hole for being in threaded connection with the threaded rod 24, one side of the barrel body 11 is fixedly provided with a sliding rail 17, two ends of the sliding rail 17 are respectively and fixedly connected with a limiting block, a sliding block 16 is arranged on the sliding rail 16 and is opposite to the position of the sliding rail 17 and is provided with a threaded through hole for being in threaded connection with the bolt, one end of a push rod 13 is fixedly installed on one side of the sliding block 16, the other end of the push rod 13 is fixedly connected with a handle 12, and the push rod 13 is obliquely arranged;
the side spraying device 18 comprises a fixed block 19, a rotating bead 20, a second water outlet box 21, a second spraying head 22 and a rotating groove 23, the fixed block 19 is fixedly arranged on one side of the rod body 10, the rotating groove 23 is formed in one side of the fixed block 19, the rotating bead 20 is rotatably arranged in the rotating groove 23, the part of the rotating bead 20 protrudes out of the rotating groove 23 and is fixedly connected with the second water outlet box 21 through a connecting rod, a plurality of second spraying heads 22 are fixedly arranged on one side of the second water outlet box 21, a water inlet of the second spraying heads 22 is communicated with the inside of the second water outlet box 21, a rubber pad is fixedly connected to the inner wall of the rotating groove 23, the structures and specifications of all parts of the first lifting device 1 and the second lifting device 9 are the same, a water storage tank 7 is fixedly arranged on the top of the top plate 2, a water outlet of the water storage tank 7 is connected with a water inlet of the water pump 4 through a water guide pipe, the water pump 4 is fixedly arranged on the top plate 2, the delivery port of water pump 4 passes through the aqueduct to be connected with the one end of four-way pipe 3, the other end of four-way pipe 3 passes through the water guide hose and is connected with the water inlet of second play water box 21, the third end of four-way pipe 3 passes through the aqueduct to be connected with the water inlet of first play water box 5, first play water box 5 passes through connecting rod fixed mounting in 2 bottoms on roof, 5 bottom fixed mounting of first play water box have a plurality of first shower 6, the water inlet and the inside intercommunication of first play water box 5 of first shower 6, the fourth end of four-way pipe 3 is connected with the play water box in the second elevating gear 9 through the water guide hose, 2 top fixed mounting on roof have switch 8, water pump 4 is connected with switch 8 electricity through the wire, switch 8 is connected with external power supply electricity through the wire.
The working principle of the invention is as follows:
the walking wheels 15 are arranged to facilitate the free movement of the device, the handle 12 is arranged to facilitate the movement of the pushing device of an operator, the portability of the device is improved, when dust generated in the production process of the bar and line needs to be sprayed and dedusted, the operator firstly moves the device to enable the first lifting device 1 and the second lifting device 9 to be positioned at two sides of the production line of the bar and line, so that the first water outlet box 5 is positioned above the production line of the bar and line, when the device needs to be positioned, the threaded rod 24 is rotated to enable the lower pressing plate 25 to move downwards to be contacted with the ground, so that the positioning of the position of the device on the ground is realized, the rubber pads 26 are arranged to increase the friction force between the bottom surface of the lower pressing plate 25 and the ground, so that the effect of the positioning of the device on the ground is further improved, the adjusting slide block 16 slides on the slide rails 17, so that the height adjustment of the handle 12 is realized, thereby different height requirements of the handle 12 under different conditions are met, further utilize the bolt to rotate in the screw through hole offered on the slider 16 and extrude the slide rail 17, thus realize the location of the position of slider 16 on the slide rail 17, adjust the body of rod 10 and stretch out and draw back in the barrel 11, thus realize the regulation to the roof 2 height, thus meet different high demands to the roof 2 under different circumstances, utilize the bolt to rotate in the screw through hole offered outside the barrel 11 and extrude the body of rod 10, thus realize the limited to the body of rod 10 position, utilize the water pump 4 to make the water in the aqua storage tank 7 send into first outlet box 5 and second outlet box 21 through aqueduct and water hose, and further spout through first shower head 6 and second shower head 22, thus realize the shower dust fall to the dust that produces in the production of the rod line, adjust and change the ball 20 and rotate in rotating wiper 23, thus realize the regulation to the inclination angle of second outlet box 21, satisfy the different inclination's of second play water box 21 demand under the different situation, set up the rubber pad and be used for avoiding changeing pearl 20 and taking place to rotate in rotating groove 23 under the condition that does not receive external force, guaranteed the stability in second play water box 21 position.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention. The technology can be applied to a bar and wire production line to spray and remove dust independently in one set of system, controls the spraying and dust removing injection angle and water quantity, and uses a complete spraying and dust removing device to complete the task of the traditional spraying and dust removing step sequence, thereby accelerating the online spraying and dust removing speed. The equipment is highly centralized. The method saves the one-time investment of equipment and civil engineering construction cost, can be popularized to other domestic high-speed wire production lines, has no special limitation, and has strong popularization and application prospects.

Claims (8)

1. The utility model provides an online dust collector that sprays of stick line production, includes roof (2), its characterized in that: roof (2) bottom symmetry is provided with first elevating gear (1) and second elevating gear (9), first elevating gear (1) includes the body of rod (10), barrel (11), handle (12), push rod (13), bottom plate (14), walking wheel (15), slider (16), slide rail (17) and side direction spray set (18), bottom plate (14) top fixed mounting has barrel (11), it is provided with body of rod (10) to slide in barrel (11), the top of the body of rod (10) stretches out barrel (11) and fixed mounting is in roof (2) bottom, the screw through-hole that is used for with bolt threaded connection is just seted up to the position symmetry of the body of rod (10) in the barrel (11) outside, body of rod (10) one side is provided with side direction spray set (18), walking wheel (15) are installed to bottom plate (14) bottom symmetry, roof (2) top fixed mounting has aqua storage tank (7), the delivery port of aqua storage tank (7) passes through the aqueduct and is connected with the water inlet of water pump (4), water pump (4) fixed mounting is at roof (2) top, the delivery port of water pump (4) passes through the aqueduct and is connected with the one end of four-way pipe (3), the other end of four-way pipe (3) passes through the water guide hose and is connected with the water inlet of second play water box (21), the third end of four-way pipe (3) passes through the aqueduct and is connected with the water inlet of first play water box (5), first play water box (5) passes through connecting rod fixed mounting in roof (2) bottom, first play water box (5) bottom fixed mounting has a plurality of first shower head (6), the water inlet and the inside intercommunication of first play water box (5) of first shower head (6), the fourth end of four-way pipe (3) passes through the water guide hose and is connected with the play water box in second elevating gear (9), and a switch (8) is fixedly arranged at the top of the top plate (2).
2. The on-line spraying dust removal device for the bar line production according to claim 1, characterized in that: the novel screw rod pressing machine is characterized in that a threaded rod (24) penetrates through the bottom plate (14), a lower pressing plate (25) is fixedly mounted at the bottom of the threaded rod (24), and a threaded through hole used for being in threaded connection with the threaded rod (24) is formed in the bottom plate (14).
3. The on-line spraying dust removal device for the bar line production according to claim 2, characterized in that: the bottom of the lower pressing plate (25) is fixedly connected with a rubber pad (26).
4. The on-line spraying dust removal device for the bar line production according to claim 1, characterized in that: barrel (11) one side fixed mounting has slide rail (17), stopper of both ends difference fixedly connected with of slide rail (17), it is provided with slider (16) to slide on slide rail (17), just offer the screw thread through-hole that is used for with bolt threaded connection to the position of slide rail (17) on slider (16), slider (16) one side fixed mounting has the one end of push rod (13), the other end fixedly connected with handle (12) of push rod (13), push rod (13) set up for the slope.
5. The on-line spraying dust removal device for the bar line production according to claim 1, characterized in that: side direction spray set (18) are including fixed block (19), change pearl (20), second and go out water box (21), second shower head (22) and rotate groove (23), fixed block (19) fixed mounting is in body of rod (10) one side, fixed block (19) one side has been seted up and has been rotated groove (23), rotates groove (23) internal rotation and is provided with and changes pearl (20), change pearl (20) part protrusion and rotate groove (23) and go out water box (21) through connecting rod fixedly connected with second, second goes out water box (21) one side fixed mounting has a plurality of second shower head (22), the water inlet and the second of second shower head (22) go out the inside intercommunication of water box (21).
6. The on-line spraying dust removal device for the bar line production according to claim 5, characterized in that: the inner wall of the rotating groove (23) is fixedly connected with a rubber pad.
7. The on-line spraying dust removal device for the bar line production according to claim 1, characterized in that: the first lifting device (1) and the second lifting device (9) are identical in structure and specifications of all parts.
8. The on-line spraying dust removal device for the bar line production according to claim 1, characterized in that: the water pump (4) is electrically connected with the switch (8) through a wire, and the switch (8) is electrically connected with an external power supply through a wire.
CN202111486726.7A 2021-12-07 2021-12-07 Online spraying and dust removing device for bar production Pending CN114159909A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111486726.7A CN114159909A (en) 2021-12-07 2021-12-07 Online spraying and dust removing device for bar production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111486726.7A CN114159909A (en) 2021-12-07 2021-12-07 Online spraying and dust removing device for bar production

Publications (1)

Publication Number Publication Date
CN114159909A true CN114159909A (en) 2022-03-11

Family

ID=80484043

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111486726.7A Pending CN114159909A (en) 2021-12-07 2021-12-07 Online spraying and dust removing device for bar production

Country Status (1)

Country Link
CN (1) CN114159909A (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109847513A (en) * 2019-01-31 2019-06-07 中铁十九局集团第七工程有限公司 Anti- fugitive dust spray equipment and the anti-fugitive dust equipment of the earthwork
CN211025606U (en) * 2019-11-13 2020-07-17 林州市汇鑫安装工程有限公司 Dust collector for building site
CN211159059U (en) * 2019-09-27 2020-08-04 荆门立升环保设备有限公司 Dust collector for construction
KR102130273B1 (en) * 2019-08-22 2020-08-05 주식회사 엔케이위드 Scattering dust removal device
CN211612057U (en) * 2019-12-02 2020-10-02 武云明 Building construction dust collector
CN212523467U (en) * 2020-03-26 2021-02-12 恒荣建设集团有限公司 A dust device for construction scene
CN213912898U (en) * 2020-11-20 2021-08-10 河南贝特佳机械制造有限公司 Efficient spray set is used in manufacturing of yacht engine vent-pipe
CN214345262U (en) * 2021-02-02 2021-10-08 闫庆辉 Dust device for construction

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109847513A (en) * 2019-01-31 2019-06-07 中铁十九局集团第七工程有限公司 Anti- fugitive dust spray equipment and the anti-fugitive dust equipment of the earthwork
KR102130273B1 (en) * 2019-08-22 2020-08-05 주식회사 엔케이위드 Scattering dust removal device
CN211159059U (en) * 2019-09-27 2020-08-04 荆门立升环保设备有限公司 Dust collector for construction
CN211025606U (en) * 2019-11-13 2020-07-17 林州市汇鑫安装工程有限公司 Dust collector for building site
CN211612057U (en) * 2019-12-02 2020-10-02 武云明 Building construction dust collector
CN212523467U (en) * 2020-03-26 2021-02-12 恒荣建设集团有限公司 A dust device for construction scene
CN213912898U (en) * 2020-11-20 2021-08-10 河南贝特佳机械制造有限公司 Efficient spray set is used in manufacturing of yacht engine vent-pipe
CN214345262U (en) * 2021-02-02 2021-10-08 闫庆辉 Dust device for construction

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Application publication date: 20220311