CN112058844B - Plasma cutting dust removal device for SF oil tank production - Google Patents
Plasma cutting dust removal device for SF oil tank production Download PDFInfo
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- CN112058844B CN112058844B CN202010795037.3A CN202010795037A CN112058844B CN 112058844 B CN112058844 B CN 112058844B CN 202010795037 A CN202010795037 A CN 202010795037A CN 112058844 B CN112058844 B CN 112058844B
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- air suction
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- suction distribution
- pipeline
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K10/00—Welding or cutting by means of a plasma
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- Plasma & Fusion (AREA)
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- Arc Welding In General (AREA)
Abstract
The invention discloses a plasma cutting dust removal device for SF oil tank production, which comprises a grid platform, a main air suction pipeline and an air suction distribution pipeline, wherein the grid platform is arranged below a movable portal frame of a plasma cutting machine; the grid platform comprises a bottom plate, enclosing plates and a plurality of partition plates which are vertically arranged on the bottom plate and are arranged in parallel at intervals, two ends of each partition plate are respectively connected with the enclosing plates, grid spaces are formed between every two adjacent partition plates, an air suction pipe is arranged in each grid space, two ends of each air suction pipe are respectively communicated with an air suction distribution pipeline after penetrating through the enclosing plates, and a plurality of suction nozzle holes are arranged at the lower edge position of each air suction pipe along the axial direction of the air suction pipe at intervals; the sliding type air suction distribution air box is connected with the movable portal frame so as to realize the synchronous movement of the sliding type air suction distribution air box and the movable portal frame. The invention has good dust removal effect and low equipment investment cost.
Description
Technical Field
The invention relates to the technical field of dust removal devices, in particular to a plasma cutting dust removal device for SF oil tank production.
Background
The SF oil tank production requires the use of a plasma cutter to cut a large amount of steel sheets. The plasma cutting machine is a processing method which uses the heat of a high-temperature plasma arc to melt and evaporate a metal part or part at a notch of a workpiece and removes the molten metal by the momentum of high-speed plasma to form the notch. The plasma cutting machine is widely applied to various fields of industrial production, and has the defects that when the cutting gun head works, the operation platform generates a large amount of smoke, if the smoke is not processed in time, the smoke can cause great pollution to the environment, and the health of operators is seriously influenced.
The existing dust removal device is characterized in that an air duct is arranged on the periphery of a cutting platform, a smoke suction port is formed in the air duct, an exhaust fan is connected to the end of the air duct, and the exhaust fan is connected with a smoke purifier through a pipeline, so that the effects of dust removal and smoke purification collection are achieved. However, the dust removing device has the following defects when in use:
firstly, the suction force at each position of the cutting platform is uneven, the suction force at the position close to the peripheral air duct of the cutting platform is stronger, and the suction force at the position far away from the air duct is weaker;
and secondly, the suction force generated by the suction fan is dispersed to each smoke suction port, the consumed power is larger, and in order to achieve an ideal dust suction effect, the suction fan with larger power needs to be configured, so that the equipment investment cost is increased on one hand, and the noise of an operation site is increased on the other hand.
Disclosure of Invention
In order to solve the problems, the invention provides a plasma cutting dust removal device for SF oil tank production, which aims to improve the uniformity of negative pressure adsorption of the dust removal device and reduce the power of a fan as much as possible, thereby reducing the cost of equipment investment and reducing the noise of an operation site. The specific technical scheme is as follows:
a plasma cutting dust removal device for SF oil tank production comprises a grid platform arranged below a movable portal frame of a plasma cutting machine, a pair of main air suction pipelines, an air suction distribution pipeline and a sliding type air suction distribution air box, wherein the main air suction pipelines are respectively arranged on two sides of the grid platform in sequence and are parallel to the movement direction of the portal frame; one end of the sliding type air suction distribution air box is connected to the air suction distribution pipeline in a sliding mode, an air suction opening of the sliding type air suction distribution air box is communicated with the air suction distribution pipeline, the other end of the sliding type air suction distribution air box is connected to the main air suction pipeline in a sliding mode, and an air outlet of the sliding type air suction distribution air box is communicated with the main air suction pipeline; the grid platform comprises a bottom plate, enclosing plates erected around the bottom plate and a plurality of partition plates which are erected on the bottom plate and arranged in parallel at intervals, wherein two ends of each partition plate are respectively connected with the enclosing plates, grid spaces are formed between every two adjacent partition plates, an air suction pipe is arranged in each grid space, two ends of each air suction pipe respectively penetrate through the enclosing plates and then are communicated with the air suction distribution pipeline, and a plurality of suction nozzle holes are arranged at the lower edge of each air suction pipe along the axial direction of the air suction pipe at intervals; the sliding type air suction distribution air box is connected with the movable portal frame so as to realize synchronous movement of the sliding type air suction distribution air box and the movable portal frame.
As a further improvement of the invention, the size of the suction nozzle hole on the suction pipe is gradually increased from near to far according to the distance between the suction nozzle hole and the suction distribution pipeline, and uniform negative pressure is formed in the grid space.
In the invention, the internal air channel of the air suction distribution pipeline is divided into a plurality of air suction distribution chambers at intervals, two ends of each air suction pipe are correspondingly connected with each air suction distribution chamber, and the air suction ports of the sliding type air suction distribution air box are simultaneously communicated with at least three air suction distribution chambers close to each other in each air suction distribution chamber and are not connected with the rest air suction distribution chambers.
In the invention, four corners of an internal air chamber of the sliding type air suction distribution air box are respectively and rotatably provided with a guide shaft, one surface of the main air suction pipeline, which is in sliding connection with the sliding type air suction distribution air box, is provided with a first opening along the length direction of the pipeline, a first rubber plate for sealing the first opening is tightly attached to the surface of the first opening, the first rubber plate penetrates through the sliding type air suction distribution air box, and the part of the first rubber plate penetrating into the internal air chamber of the sliding type air suction distribution air box is hung on the four guide shafts, so that the internal air chamber of the sliding type air suction distribution air box is communicated with the main air suction pipeline.
In the invention, a second opening is arranged on one surface of the air suction distribution pipeline, which is in sliding connection with the sliding type air suction distribution air box, along the length direction of the pipeline, a second rubber plate used for sealing the second opening and sealing each air suction distribution chamber into an independent air suction distribution chamber is tightly attached to the surface of the second opening, the second rubber plate penetrates through the sliding type air suction distribution air box, and the part of the second rubber plate penetrating into the air chamber inside the sliding type air suction distribution air box is hung on the four guide shafts, so that the air chamber inside the sliding type air suction distribution air box is simultaneously communicated with at least three air suction distribution chambers close to each other in the air suction distribution pipeline and is not connected with the rest air suction distribution chambers.
As a further improvement of the present invention, a C-shaped partition is provided inside the sliding type air suction distribution air box, the C-shaped partition divides the air chamber inside the sliding type air suction distribution air box into two channels, the two channels include a C-shaped channel located between the C-shaped partition and the wall of the sliding type air suction distribution air box and an air suction channel located inside the C-shaped partition; the air suction channel is respectively communicated with the main air suction pipeline and the air suction distribution pipeline; the first rubber plate and the second rubber plate penetrate into the C-shaped channel, and the guide shaft is located in the C-shaped channel.
In the invention, the air suction pipe can be a circular pipe or a rectangular pipe or a square pipe. When the air suction pipe is a square pipe, one of the edges of the square pipe is preferably arranged upwards.
Preferably, the outer surface of the air suction pipe is provided with a ceramic coating.
Preferably, the main air suction pipeline and the air suction distribution pipeline are rectangular pipelines, the side faces, opposite to the air suction distribution pipeline, of the main air suction pipeline are respectively provided with a positioning notch, and the sliding type air suction distribution air box is arranged on the positioning notch in a sliding mode.
In the invention, a plasma cutting gun is arranged on the movable portal frame.
In the invention, the plasma cutting machine is a numerical control plasma cutting machine. When cutting, the movable portal frame moves longitudinally along the guide rail of the cutting machine, and the plasma cutting gun moves transversely on the portal frame in a direction perpendicular to the guide rail, so that the cutting of any track is realized.
In the invention, the pair of main air suction pipelines is connected with a dust removal system through a fan.
When the plasma cutting machine and the dust removal device work, the portal frame drives the air suction distribution air box to longitudinally slide along the main air suction pipeline and the air suction distribution pipeline, the position of the air suction distribution air box is always in the position of transversely aligning the plasma cutting gun, the air suction pipes in the grid space corresponding to the plasma cutting gun and the air suction pipes in the adjacent grid space are switched on through the air suction distribution air box, so that negative pressure air suction can be realized around the grid space corresponding to the plasma cutting gun, and the air suction pipes in the grid space far away from the plasma cutting gun are not connected with the air suction distribution air box, so that negative pressure air suction cannot be generated, the suction force of the fan is concentrated around the plasma cutting gun, therefore, the dust removal effect is good, the power of the fan can be reduced, the equipment investment cost is reduced, and the noise of an operation field is reduced.
The invention has the beneficial effects that:
first, the plasma cutting dust removing device for SF oil tank production of the present invention utilizes the air suction distribution bellows to realize directional dust suction on the cutting platform, realizes negative pressure air suction around the corresponding grid space of the plasma cutting gun, and the air suction pipe in the grid space far away from the ion cutting gun is not connected with the air suction distribution bellows, so that negative pressure air suction is not generated, and thus, the suction force of the fan is concentrated around the plasma cutting gun, and the dust removing effect is good, and the power of the fan can be reduced, the equipment investment cost is reduced, and the noise of the operation field is reduced.
Secondly, according to the plasma cutting and dust removing device for SF oil tank production, the size of the suction nozzle hole in the air suction pipe is gradually increased from near to far according to the distance between the suction nozzle hole and the air suction distribution pipeline, and uniform negative pressure is formed in the grid space, so that the dust suction effect is further improved.
Thirdly, the C-shaped partition wall is arranged in the sliding type air suction distribution air box, so that smoke dust can be separated from the first rubber plate and the second rubber plate penetrating into the sliding type air suction distribution air box, the negative effects of dust on the rubber plates and the guide shafts can be reduced, the wear resistance of the rubber plates and the guide shafts is improved, and the service life of the rubber plates and the guide shafts is prolonged.
Fourthly, according to the plasma cutting and dust removing device for SF oil tank production, the suction nozzle hole in the air suction pipe is located at the lower part of the air suction pipe, cutting scraps cannot cause blockage of the suction nozzle hole, and the reliability is good.
Drawings
FIG. 1 is a schematic structural diagram of a plasma cutting dust removal device for SF oil tank production according to the invention;
FIG. 2 is a schematic structural view (partially in section) of FIG. 1 relating to a sliding induced draft distribution windbox;
FIG. 3 is a schematic view of the structure of the first rubber plate and the second rubber plate penetrating into the sliding type induced draft distribution air box;
fig. 4 is a schematic view of a modified construction of the sliding induced draft distribution windbox of fig. 3.
In the figure: 1. plasma cutting machine, 2, portable portal frame, 3, the grid platform, 4, main induced-draft pipeline, 5, the distribution pipeline induced-draft, 6, the distribution bellows that induced-draft of slidingtype, 7, the bounding wall, 8, the baffle, 9, the grid space, 10, the aspiration channel, 11, the suction nozzle hole, 12, the distribution room induced-draft, 13, the guiding axle, 14, first uncovered, 15, first rubber slab, 16, the uncovered of second, 17, the rubber slab of second, 18, the location notch, 19, the cutting machine guide rail, 20, the bottom plate, 21, C type partition wall, 22, C type passageway, 23, the passageway induced-draft.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Fig. 1 to 4 show an embodiment of a plasma cutting and dust removing device for SF oil tank production according to the present invention, which includes a grid platform 3 disposed below a movable portal frame 2 of a plasma cutting machine 1, a pair of main air suction pipes 4 respectively disposed at two sides of the grid platform 3 in sequence and parallel to the moving direction of the portal frame 2, an air suction distribution pipe 5 disposed between the main air suction pipes 4 and the grid platform 3, and a sliding air suction distribution bellows 6 disposed between the main air suction pipes 4 and the air suction distribution pipe 5; one end of the sliding type air suction distribution air box 6 is connected to the air suction distribution pipeline 5 in a sliding manner, an air suction opening of the sliding type air suction distribution air box 6 is communicated with the air suction distribution pipeline 5, the other end of the sliding type air suction distribution air box 6 is connected to the main air suction pipeline 4 in a sliding manner, and an air outlet of the sliding type air suction distribution air box 6 is communicated with the main air suction pipeline 4; the grating platform 3 comprises a bottom plate 20, enclosing plates 7 erected around the bottom plate 20 and a plurality of partition plates 8 which are erected on the bottom plate 20 and arranged in parallel at intervals, wherein two ends of each partition plate 8 are respectively connected with the corresponding enclosing plate 7, grating spaces 9 are formed between every two adjacent partition plates 8, an air suction pipe 10 is arranged in each grating space 9, two ends of each air suction pipe 10 penetrate through the corresponding enclosing plate 7 and then are communicated with the corresponding air suction distribution pipeline 5, and a plurality of suction nozzle holes 11 are arranged at the lower edge of each air suction pipe 10 along the axial direction of the corresponding air suction pipe 10 at intervals; the sliding type air suction distribution air box 6 is connected with the movable portal frame 2 so as to realize the synchronous movement of the sliding type air suction distribution air box 6 and the movable portal frame 2.
As a further improvement of this embodiment, the size of the nozzle holes 11 of the air suction pipe 10 gradually increases from near to far according to the distance between the nozzle holes 11 and the air suction distribution pipes 5, and a uniform negative pressure is formed in the grill space 9.
In this embodiment, the internal air channel of the air suction distribution pipeline 5 is divided into a plurality of air suction distribution chambers 12 at intervals, two ends of each air suction pipe 10 are correspondingly connected with each air suction distribution chamber 12, and the air suction ports of the air suction sliding type distribution air box 6 are simultaneously communicated with at least three air suction distribution chambers 12 close together in each air suction distribution chamber 12 and are not connected with the rest air suction distribution chambers 12.
In this embodiment, the four corners position of the inside plenum of the sliding type air suction distribution bellows 6 is provided with a guide shaft 13 by rotation respectively, the main air suction pipeline 4 and the sliding type air suction distribution bellows 6 sliding connection's one side is provided with a first opening 14 along the pipeline length direction, a first rubber plate 15 used for sealing is pasted on the first opening 14's face, the first rubber plate 15 passes the sliding type air suction distribution bellows 6, just the first rubber plate 15 penetrates the sliding type air suction distribution bellows 6 inside plenum and is hung four the guide shaft 13 on thereby make the inside plenum of the sliding type air suction distribution bellows 6 with the main air suction pipeline 4 is linked together.
In this embodiment, a second opening 15 is disposed on a surface of the air suction distribution duct 5, which is slidably connected to the sliding air suction distribution bellows 6, along a length direction of the duct, a second rubber plate 17 for sealing the second opening 16 and sealing each air suction distribution chamber 12 into an independent air suction distribution chamber 12 is attached to the surface of the second opening 16, the second rubber plate 17 penetrates through the sliding air suction distribution bellows 6, and portions of the second rubber plate 17 penetrating through the inner air chamber of the sliding air suction distribution bellows 6 are hung on the four guide shafts 13, so that the inner air chamber of the sliding air suction distribution bellows 6 is simultaneously communicated with at least three air suction distribution chambers 12, which are close to each other, in each air suction distribution duct 5, and is not connected to the remaining air suction distribution chambers 12.
As a further improvement of this embodiment, a C-shaped partition wall 21 is provided inside the sliding type suction distribution bellows 6, the C-shaped partition wall 21 dividing the air chamber inside the sliding type suction distribution bellows 6 into two passages including a C-shaped passage 22 between the C-shaped partition wall 21 and the wall of the sliding type suction distribution bellows 6 and a suction passage 23 inside the C-shaped partition wall 21; the air suction channel 23 is respectively communicated with the main air suction pipeline 4 and the air suction distribution pipeline 5; the first rubber plate 15 and the second rubber plate 17 penetrate into the C-shaped channel 22, and the guide shaft 13 is located in the C-shaped channel 22.
In this embodiment, the air suction pipe 10 may be a circular pipe or a rectangular pipe or a square pipe. When the air suction pipe 10 is a square pipe, one of the edges of the square pipe is preferably arranged upward.
Preferably, the outer surface of the air suction pipe 10 is provided with a ceramic coating.
Preferably, the main air suction pipeline 4 and the air suction distribution pipeline 5 are rectangular pipelines, the side faces, opposite to the air suction distribution pipeline 5, of the main air suction pipeline 4 are respectively provided with a positioning notch 18, and the sliding type air suction distribution air box 6 is arranged on the positioning notch 18 in a sliding mode.
In this embodiment, a plasma cutting gun is arranged on the movable gantry 2.
In this embodiment, the plasma cutting machine is a numerical control plasma cutting machine. When cutting, the movable portal frame 2 moves longitudinally along the guide rail 19 of the cutting machine, and simultaneously, the plasma cutting gun moves transversely on the portal frame 2 in a direction vertical to the guide rail, so that the cutting of any track is realized.
In this embodiment, the main air suction pipeline 4 is connected to the dust removal system through a fan.
When the plasma cutting machine and the dust removing device work, the portal frame 2 drives the air suction distribution air box 6 to longitudinally slide along the main air suction pipeline 4 and the air suction distribution pipeline 5, the position of the air suction distribution air box 6 is always transversely aligned with the position of the plasma cutting gun, the air suction pipes 10 in the corresponding grid spaces 9 of the plasma cutting torch and the air suction pipes 10 in the adjacent grid spaces 9 are communicated through the air suction distribution air boxes 6, thereby realizing negative pressure air suction around the corresponding grid space 9 of the plasma cutting gun, and the air suction pipe 10 in the grid space 9 far away from the plasma cutting gun does not generate negative pressure air suction because the air suction pipe is not connected with the air suction distribution air box 6, thereby leading the suction force of the fan to be concentrated around the plasma cutting gun, having good dust removal effect, and the power of the fan can be reduced, the equipment investment cost is reduced, and the noise of an operation site is reduced.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. A plasma cutting dust removal device for SF oil tank production is characterized by comprising a grid platform arranged below a movable portal frame of a plasma cutting machine, a pair of main air suction pipelines respectively arranged on two sides of the grid platform in sequence and parallel to the moving direction of the movable portal frame, an air suction distribution pipeline arranged between the main air suction pipelines and the grid platform, and a sliding type air suction distribution air box arranged between the main air suction pipelines and the air suction distribution pipeline; one end of the sliding type air suction distribution air box is connected to the air suction distribution pipeline in a sliding mode, an air suction opening of the sliding type air suction distribution air box is communicated with the air suction distribution pipeline, the other end of the sliding type air suction distribution air box is connected to the main air suction pipeline in a sliding mode, and an air outlet of the sliding type air suction distribution air box is communicated with the main air suction pipeline; the grid platform comprises a bottom plate, enclosing plates erected around the bottom plate and a plurality of partition plates which are erected on the bottom plate and arranged in parallel at intervals, wherein two ends of each partition plate are respectively connected with the enclosing plates, grid spaces are formed between every two adjacent partition plates, an air suction pipe is arranged in each grid space, two ends of each air suction pipe respectively penetrate through the enclosing plates and then are communicated with the air suction distribution pipeline, and a plurality of suction nozzle holes are arranged at the lower edge of each air suction pipe along the axial direction of the air suction pipe at intervals; the sliding type air suction distribution air box is connected with the movable portal frame so as to realize synchronous movement of the sliding type air suction distribution air box and the movable portal frame.
2. The plasma cutting and dust removing device for SF oil tank production as recited in claim 1, wherein said nozzle holes of said air suction pipe are gradually increased in size from near to far according to distance of said nozzle holes from said air suction distribution pipe and form uniform negative pressure in said grid space.
3. The plasma cutting and dust removing device for SF oil tank production as claimed in claim 1, wherein said internal air channel of said air suction distribution duct is partitioned into a plurality of air suction distribution chambers, two ends of each said air suction duct are connected to each said air suction distribution chamber, said air suction inlet of said sliding type air suction distribution air box is connected to at least three adjacent air suction distribution chambers of said air suction distribution chambers simultaneously and not connected to the remaining air suction distribution chambers.
4. The plasma cutting and dust removing device for SF oil tank production as claimed in claim 1 wherein, the four corners of the internal plenum of the sliding type air suction distribution bellows are respectively rotated to provide a guide shaft, a first opening is provided along the length direction of the pipeline on the main air suction pipeline and on the sliding type air suction distribution bellows in sliding connection, a first rubber plate for sealing the first opening is attached on the first opening, the first rubber plate passes through the sliding type air suction distribution bellows, and the part of the first rubber plate penetrating into the internal plenum of the sliding type air suction distribution bellows is hung on four guide shafts so that the internal plenum of the sliding type air suction distribution bellows is communicated with the main air suction pipeline.
5. The plasma cutting and dust removing device for SF oil tank production as claimed in claim 4, wherein a second opening is provided along the length direction of the pipe on the side of said air suction distribution pipe slidably connected to said sliding type air suction distribution bellows, a second rubber plate for closing said second opening and closing each of said air suction distribution chambers into independent air suction distribution chambers is attached to the side of said second opening, said second rubber plate passes through said sliding type air suction distribution bellows, and the portion of said second rubber plate penetrating into the inner plenum of said sliding type air suction distribution bellows is hung on four said guide shafts so that the inner plenum of said sliding type air suction distribution bellows is simultaneously communicated with at least three air suction distribution chambers close together in each of said air suction distribution pipes and is not connected to the remaining air suction distribution chambers.
6. The plasma cutting and dust removing device for SF oil tank production as set forth in claim 5, wherein said sliding type air draft distribution bellows is internally provided with a C-shaped partition wall, said C-shaped partition wall dividing said air chamber inside said air draft distribution bellows into two passages, said two passages including a C-shaped passage between said C-shaped partition wall and said wall of said sliding type air draft distribution bellows and an air draft passage inside said C-shaped partition wall; the air suction channel is respectively communicated with the main air suction pipeline and the air suction distribution pipeline; the first rubber plate and the second rubber plate penetrate into the C-shaped channel, and the guide shaft is located in the C-shaped channel.
7. The plasma cutting and dust removing device for SF oil tank production as recited in claim 1, wherein said air suction pipe is provided with a ceramic coating on its outer surface.
8. The plasma cutting and dust removing device for SF oil tank production as claimed in claim 1, wherein said main air suction duct and said air suction distribution duct are rectangular ducts, and the opposite sides of said main air suction duct and said air suction distribution duct are respectively provided with a positioning notch, and said sliding type air suction distribution bellows is slidably disposed on said positioning notch.
9. The plasma cutting and dust removing device for SF oil tank production as recited in claim 1, wherein said pair of main air suction pipes are connected to the dust removing system by a fan.
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| CN202010795037.3A CN112058844B (en) | 2020-08-10 | 2020-08-10 | Plasma cutting dust removal device for SF oil tank production |
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| CN202010795037.3A CN112058844B (en) | 2020-08-10 | 2020-08-10 | Plasma cutting dust removal device for SF oil tank production |
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| CN112058844B true CN112058844B (en) | 2021-07-30 |
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| CN114309906B (en) * | 2022-02-15 | 2022-09-02 | 深圳美新隆制罐有限公司 | Plasma arc welding machine for metal can production |
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| CN209716831U (en) * | 2019-04-16 | 2019-12-03 | 郑州晨航机电科技有限公司 | Cutting and welding smoke purification device |
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| JPH10156796A (en) * | 1996-12-04 | 1998-06-16 | Meisan Kk | Dust collector |
| JP3163291B2 (en) * | 1998-12-25 | 2001-05-08 | 東芝テック株式会社 | Suction port body and vacuum cleaner |
| CN103600298A (en) * | 2013-11-29 | 2014-02-26 | 江苏东杰环保机械设备制造有限公司 | Linkage dust removing system of movable abrasive cutting saw |
| CN209586730U (en) * | 2017-11-24 | 2019-11-05 | 日本电产株式会社 | Air supply device and dust catcher |
| EP3566631A1 (en) * | 2018-05-09 | 2019-11-13 | Nilfisk A/S | Fluid manifolds for floor cleaning machine |
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