CN115055795A - Plasma cutting dust pelletizing system - Google Patents
Plasma cutting dust pelletizing system Download PDFInfo
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- CN115055795A CN115055795A CN202210649399.0A CN202210649399A CN115055795A CN 115055795 A CN115055795 A CN 115055795A CN 202210649399 A CN202210649399 A CN 202210649399A CN 115055795 A CN115055795 A CN 115055795A
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- air pipe
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/30—Particle separators, e.g. dust precipitators, using loose filtering material
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The invention relates to the technical field of environmental protection equipment, in particular to a plasma cutting and dust removing system, which comprises a trapping device, an air pipe bin, a telescopic air pipe and a smoke dust purifying device, wherein the telescopic air pipe and the smoke dust purifying device are arranged in the air pipe bin; the collecting device is movably arranged above the cutting platform, and the air duct bin is arranged on a wall surface beside the cutting platform and extends along the length direction of the cutting platform; a rigid air pipe is connected above the trapping device, the other end of the rigid air pipe is connected with a transmission bin arranged in an air pipe bin, the transmission bin is connected with one end of a telescopic air pipe, and the other end of the telescopic air pipe is connected to a smoke dust purification device through the air pipe; according to the invention, the trapping device can move along the cutting path of the cutting head, so that smoke dust generated in the plasma cutting process is timely and sufficiently collected, and the smoke dust is prevented from escaping to the surrounding environment to influence the health of operators.
Description
Technical Field
The invention relates to the technical field of environment-friendly equipment, in particular to a plasma cutting and dust removing system.
Background
The plasma cutting is a processing method which utilizes the heat of a high-temperature plasma arc to locally melt metal at a notch of a workpiece and removes the molten metal by means of the momentum of high-speed plasma to form the notch, and can cut various metals which are difficult to cut by oxygen by matching with different working gases, particularly has better cutting effect on nonferrous metals (stainless steel, aluminum, copper, titanium and nickel); the plasma cutting method has the main advantages that when metal with small thickness is cut, the plasma cutting speed is high, particularly when a common carbon steel sheet is cut, the speed can reach 5-6 times that of an oxygen cutting method, and the plasma cutting method has the advantages of smooth cutting surface, small thermal deformation and less heat affected zone, so that the plasma cutting method plays an important role in the fields of material cutting and blanking, part processing and the like.
The plasma cutting process generates a large amount of harmful fumes, which may damage the health of workers and cause pollution to the surrounding environment. At present, aiming at plasma cutting in a workshop, the influence of smoke dust can be reduced and eliminated by adopting a mode of local smoke dust treatment and comprehensive workshop ventilation. In the prior art, a wet treatment mode and a dry treatment mode are generally adopted for local smoke treatment on a plasma cutting station. The wet processing mode is to make a water bed cutting platform, to place the workpiece to be cut in water or on the water surface, then to complete the cutting operation in the place under water or close to the water surface, and to capture the smoke and dust generated in the plasma cutting process by water, so as to achieve the purpose of purifying the environment.
The dry treatment mode is that a set of smoke dust collecting device is added for the cutting working platform, and the collected smoke dust is directly conveyed into smoke dust filtering and purifying equipment and is discharged after being treated to reach the standard. The existing smoke dust collecting device is generally an air suction type negative pressure cutting platform, namely a composite air suction device is arranged on a plasma cutting platform, so that smoke dust generated by a cutting head during cutting operation is timely sucked away, and the smoke dust is prevented from being dissipated to the surrounding environment. However, in the cutting operation process of the cutting head, not only smoke dust is generated, but also high-temperature cutting scraps and sparks are generated, and are basically formed at the position below the cut of a workpiece to be cut, so that the cutting head is easy to enter an air suction pipeline, and quickly enters the dust remover when the air suction pressure is high, and the safe and stable operation of the dust remover is influenced; on the other hand, at present, with the increase of the volume of the workpiece to be cut, in order to ensure the sufficient trapping of the smoke dust in the plasma cutting process, the power of the suction fan is often required to be further increased to obtain enough negative pressure to face the processing surface with the increased volume, which obviously causes the increase of the smoke dust processing cost.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a plasma cutting dust removal system, which avoids the adverse effects of high-temperature cuttings and sparks generated in the plasma cutting process on an air suction pipeline and a dust remover and improves the dust collection efficiency in the plasma cutting process by improving a smoke collection device.
In order to achieve the purpose, the invention adopts the following technical scheme:
a plasma cutting dust removal system comprises a trapping device, an air pipe bin, a telescopic air pipe and a smoke dust purification device, wherein the telescopic air pipe and the smoke dust purification device are arranged in the air pipe bin;
the collecting device is movably arranged above the cutting platform, and the air duct bin is arranged on a wall surface beside the cutting platform and extends along the length direction of the cutting platform;
the device is characterized in that a rigid air pipe is connected above the trapping device, the other end of the rigid air pipe is connected with a transmission bin arranged in an air pipe bin, the transmission bin is connected with one end of a telescopic air pipe, and the other end of the telescopic air pipe is connected to a smoke dust purification device through the air pipe.
In a further technical scheme, the trapping device comprises a square frame formed by splicing a transverse rod and a longitudinal rod, four corners of the square frame are provided with vertical rods extending downwards, and the bottom of each vertical rod is provided with a driving mechanism for driving the trapping device to reciprocate along the length direction of the cutting platform;
a dust hood is arranged above the square frame, and the rigid air pipe is connected to the upper end of the dust hood.
In a further technical scheme, the periphery of the square frame is provided with separating curtains extending downwards.
In a further technical scheme, actuating mechanism is including setting up the mount pad of pole setting bottom, be equipped with the gyro wheel on the mount pad, the gyro wheel is along setting up at cutting platform side and along the reciprocal roll of the track that its length direction extends, and is equipped with driving motor on one of them mount pad, be equipped with the gear on driving motor's the output shaft, the gear meshes with the rack phase of setting on corresponding the track mutually.
In a further technical scheme, the dust hood is of a closed structure from bottom to top, a clamping groove with an upward opening is formed in an inclined plane of the dust hood, a dust blocking strip is clamped in the clamping groove, and a collecting groove is formed in the inner side of the bottom opening edge of the dust hood and used for collecting smoke dust particles.
In a further technical scheme, one end of the rigid air pipe, which is far away from the trapping device, is fixedly connected with the upper end of the transmission bin in a socket joint mode, and a filter element is arranged in the transmission bin and used for filtering smoke dust particles.
In a further technical scheme, the bottom of the transmission bin is provided with a supporting roller, and the transmission bin is driven to move along the length direction of the air pipe bin when the collecting device moves, and pushes the telescopic air pipe to compress the telescopic air pipe or pulls the telescopic air pipe to expand the telescopic air pipe.
In a further technical scheme, a suction fan is arranged at one end, far away from the transmission bin, of the telescopic air pipe and is used for generating negative pressure in the telescopic air pipe.
In a further technical scheme, the telescopic air pipe comprises a flexible wind shielding cloth which is enclosed to form a tubular ventilation structure, supporting rings are arranged on the telescopic air pipe at intervals along the length direction of the telescopic air pipe, at least one sleeve is arranged on the circumference of each supporting ring, and the sleeve and a guide rod arranged in an air pipe bin form guide limit matching.
In a further technical scheme, the smoke dust purification device comprises an adsorption box, a partition plate is arranged in the adsorption box and used for separating the adsorption box into circuitous and turning-back air channels, a drawer box is inserted in the air channels, a through hole is formed in the bottom of the drawer box, and a filtering material is filled in the drawer box and used for filtering gas flowing through the drawer box.
Compared with the prior art, the invention has the following technical effects:
according to the plasma cutting dust removal system provided by the invention, the trapping device is movably arranged above the cutting platform, and can move along the cutting path of the cutting head through the rigid air pipe connected above the trapping device, the air pipe bin and the telescopic air pipe arranged beside the trapping device, so that smoke generated in the plasma cutting process can be timely and sufficiently collected, and the smoke is prevented from being dissipated to the surrounding environment to influence the health of operators.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
Fig. 1 is a schematic structural diagram of a plasma cutting dust removal system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram illustrating an air duct cabin and a telescopic air duct arranged in the air duct cabin according to an embodiment of the present invention;
fig. 3 is a schematic structural view illustrating a dust cage according to an embodiment of the present invention;
FIG. 4 is a schematic view of a dust barrier strip according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a smoke purifying apparatus according to an embodiment of the present invention;
fig. 6 is a schematic structural view illustrating a drawer box according to an embodiment of the present invention;
the reference numbers in the figures illustrate: 1. cutting the platform; 101. a track; 102. a rack; 10. a trapping device; 11. a square frame; 111. a cross bar; 112. a longitudinal bar; 113. a separating curtain; 12. erecting a rod; 121. a mounting seat; 1211. a roller; 1212. a drive motor; 1213. a gear; 13. a dust collection cover; 131. a clamping groove; 132. collecting tank; 14. a dust barrier strip; 20. an air duct bin; 21. a telescopic air duct; 211. a flexible wind-blocking cloth; 212. a support ring; 2121. a sleeve; 22. a transmission bin; 221. supporting rollers; 23. a suction fan; 24. a guide rod; 30. a smoke dust purification device; 301. an air inlet; 302. an air outlet; 31. an adsorption tank; 32. a partition plate; 33. a drawer box; 331. a through hole; 332. a support layer; 34. a filter material; 35. an air duct; 36. an induced draft fan; 40. a rigid air duct.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further clarified by combining the specific drawings.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As described above, with reference to fig. 1 and 5, the present invention provides a plasma cutting dust removal system, which includes a trapping device 10, an air duct bin 20, and a telescopic air duct 21 and a smoke dust purification device 30 arranged in the air duct bin 20.
The trapping device 10 is movably arranged above the cutting platform 1, and the air duct bin 20 is arranged on a wall surface beside the cutting platform 1 and extends along the length direction of the cutting platform 1;
a rigid air pipe 40 is connected above the trapping device 10, the other end of the rigid air pipe 40 is connected with a transmission bin 22 arranged in the air pipe bin 20, the transmission bin 22 is connected with one end of a telescopic air pipe 21, and the other end of the telescopic air pipe 21 is connected to the smoke dust purification device 30 through the air pipe.
In the invention, the cutting platform 1 is used for placing a workpiece to be cut and is a platform for a cutting head of a plasma cutting machine to perform cutting operation.
In the technical scheme provided by the invention, the trapping device 10 is movably arranged above the cutting platform 1, and the rigid air pipe 40 connected above the trapping device 10, the air pipe bin 20 arranged beside the trapping device and the telescopic air pipe 21 enable the trapping device 10 to move along the cutting path of the cutting head, so that smoke generated in the plasma cutting process can be timely and sufficiently collected, and the smoke is prevented from escaping to the surrounding environment to influence the health of operators.
In the invention, as the collecting device 10 is arranged above the cutting platform 1, the potential safety hazard caused by the fact that high-temperature cutting scraps generated below the cut of the workpiece are absorbed into the collecting device 10 is effectively avoided; through the setting of entrapment device 10, form stable negative pressure area in the operation area of cutting head, the effectual smoke and dust that produces in the cutting operation of having avoided is spread to the problem that causes the pollution in the surrounding environment.
In the invention, as the forming condition of the negative pressure area, the induced draft fan can be arranged in the dust removal system provided by the invention, and the stable negative pressure condition is formed by utilizing the air draft effect of the induced draft fan so as to avoid the problem of the dissipation of smoke dust generated during the plasma cutting operation.
Further, according to the dust removal system provided by the invention, in the invention, the collecting device 10 comprises a square frame 11 formed by splicing a cross rod 111 and a longitudinal rod 112, four corners of the square frame 11 are provided with vertical rods 12 extending downwards, and the bottom of each vertical rod 12 is provided with a driving mechanism for driving the collecting device 10 to reciprocate along the length direction of the cutting platform 1;
a dust hood 13 is arranged above the square frame 11, and the rigid air pipe 40 is connected to the upper end of the dust hood 13. The dust collecting cover 13 covers the operation area of the cutting head to form a stable negative pressure area, so that the smoke generated during the cutting operation is collected in time and sucked into the smoke purifying device 30 for processing.
Further, in the present invention, a separation curtain 113 extending downward is disposed around the square frame 11. Through the arrangement of the separation curtain 113, the square frame 11 can be arranged at a relatively high position to ensure the effective trapping of the smoke in the negative pressure area; moreover, a negative pressure area with a larger volume is formed by the matching of the separating curtain 113 and the dust collecting cover 13, so that the smoke generated during the plasma cutting operation can be fully collected; in addition, through the design of the separating curtain 113, in practical use, an operator can conveniently pull the separating curtain 113 to perform maintenance operation, or raise the separating curtain 113 when transferring a large workpiece to be cut to the cutting platform 1, so as to facilitate operation. That is, the simple design of the separating curtain has beneficial technical effects on the trapping of smoke dust, the maintenance of equipment, the actual cutting operation and the like.
Further, according to the dust removing system provided by the invention, the driving mechanism is used for driving the trapping device 10 to stably move along the length direction of the cutting platform 1 so as to adapt to the cutting path of the cutting head, and timely and sufficient trapping of smoke dust generated during cutting operation is ensured. As a specific embodiment of the driving mechanism, the driving mechanism includes mounting seats 121 disposed at the bottom of the upright 12, rollers 1211 are disposed on the mounting seats 121, the rollers 1211 reciprocally roll along rails 101 disposed beside the cutting platform 1 and extending along the length direction thereof, a driving motor 1212 is disposed on one of the mounting seats 121, a gear 1213 is disposed on an output shaft of the driving motor 1212, and the gear 1213 is engaged with the rack 102 disposed on the corresponding rail 101.
According to the dust removing system provided by the invention, the dust collecting cover 13 is used for collecting the smoke dust, as a specific embodiment of the dust collecting cover 13, as shown in fig. 3 and 4, the dust collecting cover 13 is a closed structure from bottom to top, a clamping groove 131 with an upward opening is arranged on an inclined surface of the dust collecting cover 13, a dust blocking strip 14 is clamped in the clamping groove 131, and a collecting groove 132 is arranged on the inner side of the bottom opening edge of the dust collecting cover 13 and used for collecting the smoke dust particles.
Through the design of the dust blocking strip 14, a plurality of rib structures are formed inside the dust collection cover 13, so that the collision probability of smoke particles and the dust collection cover 13 is increased, part of the smoke particles are intercepted in the dust collection cover 13, and the burden of the rear-end smoke purification device 30 is reduced; in addition, based on the structure provided by the invention, the clamping groove 131 is preformed on the dust collection cover 13, the dust blocking strip 14 can be fixed on the dust collection cover 13 in a clamping manner, the installation is simple and convenient, and the dust blocking strip 14 can be efficiently detached for cleaning during maintenance; more preferably, the dust blocking strip 14 is made of a flame retardant material, so that the influence of high-temperature cutting chips on the trapping device 10 caused by the high-temperature cutting chips scattered in a negative pressure area can be effectively avoided, and the safety is improved.
In the invention, one end of the rigid air pipe 40 far away from the trapping device 10 is fixedly connected with the upper end of the transmission bin 22 in a socket manner, and a filter element is arranged in the transmission bin 22 and used for filtering smoke dust particles. The filter element is arranged in the transmission bin 22, so that the collected smoke is subjected to primary adsorption treatment, and the burden of the rear-end smoke purification device 30 can be effectively reduced; in addition, the above preferred solution is a further improvement in the specific practice, and in particular, the inventors of the present application found that after the dust removing system is used for a period of time, soot particles are easily accumulated at the connection between the rigid air duct 40 and the transmission chamber 22, especially in the folds of the telescopic air duct 21; therefore, in the preferred embodiment of the present invention, the filter element is disposed in the transmission bin 22 to filter the collected smoke, so that the burden of the smoke purification device 30 can be reduced, the accumulation of smoke particles in the rest of the pipeline of the dust removal system can be reduced, and the maintenance frequency can be reduced.
In the invention, as shown in fig. 2, the air duct bin 20 is a containing structure with an open upper end, the telescopic air duct 21 is laid in the air duct bin 20 and extends along the length direction of the air duct bin, one end of the telescopic air duct 21 close to the smoke dust purification device 30 is fixed in the air duct bin 20, one end of the telescopic air duct 21 far away from the smoke dust purification device is connected with the transmission bin 22, and the telescopic air duct 21 is folded or unfolded under the pushing of the rigid air duct 40.
More specifically, in the present invention, the bottom of the transmission bin 22 is provided with a supporting roller 221, and the transmission bin 22 reciprocates along the length direction of the air duct bin 20 through the supporting roller 221. When the collecting device 10 moves, the transmission bin 22 is driven to move along the length direction of the air duct bin 20, and the telescopic air duct 21 is pushed to be compressed or the telescopic air duct 21 is pulled to be expanded.
Further, according to the dust removing system provided by the present invention, in the present invention, an end of the telescopic air duct 21 away from the transmission bin 22 is provided with a suction fan 23 for generating negative pressure in the telescopic air duct 21. The suction fan 23 increases the negative pressure in the area covered by the telescopic duct 21 and the dust collecting cover 13, thereby increasing the dust collecting effect.
In the present invention, as a specific embodiment of the telescopic air duct 21, the telescopic air duct 21 includes a flexible wind-blocking cloth 211 enclosing to form a tubular ventilation structure, and the telescopic air duct 21 is provided with support rings 212 arranged at intervals along the length direction thereof, the circumference of the support ring 212 is provided with at least one sleeve 2121, and the sleeve 2121 and the guide rod 24 arranged in the air duct bin 20 form a guiding and limiting fit. The sleeve 2121 on the support ring 212 is matched with the guide rod 24, so as to ensure the stability of the telescopic air duct 21 during the folding and unfolding processes.
According to the dust removal system provided by the invention, the smoke dust purification device 30 is used for filtering the collected air containing smoke dust particles so as to prevent the air from being dissipated to the surrounding environment to cause pollution.
As a specific embodiment of the smoke purifying device 30, the smoke purifying device 30 includes an adsorption box 31, a partition plate 32 is disposed in the adsorption box 31 for partitioning the adsorption box 31 to form a roundabout and turning air channel, a drawer box 33 is disposed in the air channel, a through hole 331 is disposed at the bottom of the drawer box 33, and a filter material 34 is disposed in the drawer box 33 for filtering the gas flowing through the drawer box 33.
Referring to fig. 5, the other end of the telescopic duct 21 is connected to the smoke and dust purifying device 30 through a duct 35, enters the air channel through an air inlet 301 of the smoke and dust purifying device 30, is filtered by the drawer boxes 33, is connected to the induced draft fan 36 through an air outlet 302 of the smoke and dust purifying device 30 through the duct 35, and discharges the filtered and standard-reaching gas to the atmosphere through the induced draft fan 36.
Further, in the present invention, the filter material 34 is granular activated carbon. Referring to fig. 6, in a specific embodiment of the present invention, the drawer box 33 is filled with quartz sand as a supporting layer 332, and the filter material 34 is laid on the supporting layer 332, so as to avoid the problem that the through hole 331 is blocked by directly filling the granular activated carbon with a relatively fine particle size in the drawer box 33, which results in poor ventilation.
Furthermore, in the present invention, the quartz sand should be subjected to a solution stability test before charging, specifically after soaking for 24 hours, and the following requirements are met: the increase of the total solid matter is not more than 20mg/L, and the increase of the oxygen consumption is not more than 10 mg/L; the increase in silica after soaking in alkaline medium does not exceed 10 mg/L. The quartz sand should be carefully cleaned before being loaded into the drawer box 33, and then loaded with the filter material 34, and cleaned until clean for use.
The foregoing shows and describes the general principles, essential features, and inventive features of this invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The plasma cutting and dust removing system is characterized by comprising a collecting device (10), an air pipe bin (20), a telescopic air pipe (21) arranged in the air pipe bin (20) and a smoke dust purifying device (30);
the collecting device (10) is movably arranged above the cutting platform (1), and the air duct bin (20) is arranged on a wall surface beside the cutting platform (1) and extends along the length direction of the cutting platform (1);
the device is characterized in that a rigid air pipe (40) is connected above the trapping device (10), the other end of the rigid air pipe (40) is connected with a transmission bin (22) arranged in an air pipe bin (20), the transmission bin (22) is connected with one end of a telescopic air pipe (21), and the other end of the telescopic air pipe (21) is connected to a smoke dust purification device (30) through the air pipe.
2. The plasma cutting and dust removing system according to claim 1, wherein the trapping device (10) comprises a square frame (11) formed by splicing a cross rod (111) and a longitudinal rod (112), four corners of the square frame (11) are provided with vertical rods (12) extending downwards, and the bottoms of the vertical rods (12) are provided with driving mechanisms for driving the trapping device (10) to reciprocate along the length direction of the cutting platform (1);
a dust hood (13) is arranged above the square frame (11), and the rigid air pipe (40) is connected to the upper end of the dust hood (13).
3. The plasma cutting and dust removing system according to claim 2, wherein the square frame (11) is provided with a downwardly extending separating curtain (113) around the circumference.
4. The plasma cutting and dust removing system of claim 2, wherein the driving mechanism comprises a mounting seat (121) arranged at the bottom of the upright rod (12), a roller (1211) is arranged on the mounting seat (121), the roller (1211) rolls back and forth along a track (101) which is arranged beside the cutting platform (1) and extends along the length direction of the cutting platform, a driving motor (1212) is arranged on one of the mounting seats (121), a gear (1213) is arranged on an output shaft of the driving motor (1212), and the gear (1213) is meshed with a rack (102) arranged on the corresponding track (101).
5. The plasma cutting and dust removing system of claim 2, wherein the dust collecting hood (13) is a bottom-up closed structure, the inclined surface of the dust collecting hood is provided with a clamping groove (131) with an upward opening, the clamping groove (131) is internally clamped with a dust blocking strip (14), and the inner side of the bottom opening edge of the dust collecting hood (13) is provided with a collecting groove (132) for collecting dust particles.
6. The plasma cutting and dust removing system as claimed in claim 1, wherein the end of the rigid air duct (40) far away from the trapping device (10) is fixedly connected with the upper end of the transmission bin (22) in a socket-and-spigot manner, and a filter element is arranged in the transmission bin (22) for filtering smoke dust particles.
7. The plasma cutting and dust removing system as claimed in claim 1, wherein the bottom of the transmission bin (22) is provided with a supporting roller (221), and when the trapping device (10) moves, the transmission bin (22) is driven to move along the length direction of the air duct bin (20) and pushes the telescopic air duct (21) to compress the telescopic air duct or pulls the telescopic air duct (21) to expand the telescopic air duct.
8. The plasma cutting and dust removing system according to claim 1, wherein the end of the telescopic air pipe (21) far away from the transmission bin (22) is provided with a suction fan (23) for generating negative pressure in the telescopic air pipe (21).
9. The plasma cutting and dust removing system of claim 1, wherein the telescopic air duct (21) comprises a flexible wind blocking cloth (211) enclosing to form a tubular ventilation structure, support rings (212) are arranged on the telescopic air duct (21) at intervals along the length direction of the telescopic air duct, at least one sleeve (2121) is arranged on the circumference of each support ring (212), and the sleeve (2121) and the guide rod (24) arranged in the air duct bin (20) form a guide limit fit.
10. The plasma cutting and dust removing system according to claim 1, wherein the smoke dust purification device (30) comprises an adsorption box (31), a partition plate (32) is arranged in the adsorption box (31) and used for dividing the adsorption box into a roundabout and turning-back air channel, a drawer box (33) is arranged in the air channel, a through hole (331) is formed in the bottom of the drawer box (33), and a filter material (34) is filled in the drawer box (33) and used for filtering gas flowing through the drawer box (33).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210649399.0A CN115055795A (en) | 2022-06-10 | 2022-06-10 | Plasma cutting dust pelletizing system |
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| CN202210649399.0A CN115055795A (en) | 2022-06-10 | 2022-06-10 | Plasma cutting dust pelletizing system |
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| CN115055795A true CN115055795A (en) | 2022-09-16 |
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| CN202210649399.0A Pending CN115055795A (en) | 2022-06-10 | 2022-06-10 | Plasma cutting dust pelletizing system |
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| CN203292714U (en) * | 2013-04-18 | 2013-11-20 | 滕州市三合机械股份有限公司 | Dust removal and residue collecting device of plasma cutting machine |
| CN203316897U (en) * | 2013-06-17 | 2013-12-04 | 青岛路博宏业环保技术开发有限公司 | Plasma cutting machine |
| CN105134277A (en) * | 2015-07-16 | 2015-12-09 | 武汉大学 | Free telescopic tube head device for ventilation of tunnel |
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