CN113732001A - Ship welding smoke dust collecting device and using method thereof - Google Patents
Ship welding smoke dust collecting device and using method thereof Download PDFInfo
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- CN113732001A CN113732001A CN202111024691.5A CN202111024691A CN113732001A CN 113732001 A CN113732001 A CN 113732001A CN 202111024691 A CN202111024691 A CN 202111024691A CN 113732001 A CN113732001 A CN 113732001A
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- welding
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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
- B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
-
- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
Abstract
The invention provides a ship welding smoke dust collecting device and a using method of the device, wherein the ship welding smoke dust collecting device comprises a welding part, a dust collecting part and a collecting part, the dust collecting part is sleeved outside the welding part and is communicated with the collecting part, when the welding part is welded, the dust collecting part sleeved outside the welding part performs dust collection, and smoke dust is conveyed to the collecting part for purification treatment; the gas protection welding line can directly absorb smoke dust generated at the position of a welding operation point after forming, the smoke dust is prevented from flying or drifting away, the welding smoke dust is conveyed to the filter cylinder through the pipeline, welding smoke dust is purified, and the dust collection efficiency is high and the purification effect is good.
Description
Technical Field
The invention relates to the technical field of ship construction, in particular to a welding smoke dust collecting device applied to ship welding construction and a using method thereof.
Background
The welding treatment is often carried out on an operation point in the ship industry, when welding, a welding wire and a steel plate are subjected to glowing metallurgical reaction at the high temperature (3000-6000 ℃) of an electric arc to generate a large amount of metal oxides, the metal oxides are emitted into the air in an aerosol state, electric welding smoke dust with small particle size (mostly 0.4-0.5 um) is formed by rapid condensation, the electric welding smoke dust is one of common occupational hazard factors with huge hazard, harmful substances including metals such as manganese, iron, aluminum, copper and the like and oxides thereof are probably generated based on the difference between a welding method and a welding object, the welding smoke dust and ultraviolet radiation of the electric arc interact to form ozone, nitrogen oxides and gas generated in an oxidation process, so that not only the environment air is seriously affected, but also the environment has serious hazard on the occupational health of people. Therefore, the problem of a large amount of harmful smoke generated by welding is actively solved, and the method has important significance for protecting the health of staff and building environment-friendly enterprises.
The treatment of welding fume in the current ship industry mainly comprises the following modes:
the natural ventilation is a main means for treating welding fume in shipyards, but because the shipyard welding workshops are large in scale, large in span and long in length, the effect of the natural ventilation in the deep interior of the workshop is difficult to guarantee, and the natural ventilation is restricted by meteorological conditions, so that the stability and controllability are poor.
Local convulsions, establish the enclosure at the side or the top of fixed welding operation point promptly, utilize the fan to take out the smoke and dust, reduce the welding smoke volume to unorganized diffusion in the workshop, but the dress of large-scale shipyard welds the workshop station intensive, the mobility is extremely strong, crane operation in the workshop, the work piece hoist and mount is frequent, local dust collector's arrangement receives very big restriction, and in the workshop operation, the most of circumstances is that the station removes, the work piece is motionless, the smoke and dust produces some constantly change, can't collect the flue gas with local enclosure, this mode is only applicable to partial fixed station.
The comprehensive air exchange process has the defects of large air quantity, poor smoke exhaust effect and high energy consumption compared with a local exhaust method process.
In order to meet the requirement of treating the welding smoke dust of a shipyard, a welding smoke dust collecting device which can adapt to ship operation needs to be designed, so that the purposes of low energy consumption, good smoke and dust removing effect, convenience and high efficiency are achieved, and the construction quality is not influenced.
Disclosure of Invention
The invention aims to provide a ship welding smoke dust collecting device, which is suitable for ship welding operation and achieves the purposes of low energy consumption, good smoke and dust removing effect, convenience, high efficiency and no influence on construction quality.
The ship welding smoke dust collecting device comprises a welding part, a dust collecting part and a collecting part, wherein the dust collecting part is sleeved outside the welding part and communicated with the collecting part, when the welding part is welded, the dust collecting part sleeved outside the welding part performs dust collection, sucks smoke dust generated during welding, and conveys the smoke dust to the collecting part for purification treatment.
The welding part comprises a welding gun nozzle 1 and a welding work pipe 13, one end of the welding gun nozzle 1 is communicated with the welding work pipe 13 through a first connecting joint 16, and a sealing ring 6 is arranged at the connecting part.
The dust collection part comprises a dust collection sleeve 2, a communicating pipe 3, a communicating disc 4 and a dust collection working pipe 5, wherein the dust collection sleeve 2 is sleeved at one end, close to welding operation, of the welding gun nozzle 1, the communicating pipe 3 is sleeved at the middle section of the welding gun nozzle 1, and a jack is arranged at the lower part of the communicating disc 4 and sleeved at one end, close to a welding working pipe 13, of the welding gun nozzle 1; dust absorption sleeve pipe 2 is close to welding jobs's tip and is provided with the dust absorption mouth, and the one end intercommunication that welding jobs was kept away from to dust absorption sleeve pipe 2 has communicating pipe 3, and dust absorption sleeve pipe 2 and 3 sealing connection communicating pipe, the one end of keeping away from dust absorption sleeve pipe 2 communicating pipe 3 has communicating disc 4 through two 15 intercommunications of connector, the inside hollow setting of communicating disc 4, the upper portion of communicating disc 4 is passed through three 17 of connector and is linked together with 5 one end of dust absorption work pipe.
The inner side surface of the dust collection sleeve 2 is provided with an internal thread 19, the outer side surface of the welding gun nozzle 1 is provided with an external thread 18, the dust collection sleeve 2 and the welding gun nozzle are detachably connected through threads, and meanwhile, one end of the welding operation of the welding gun nozzle 1 can be controlled to stretch into the length of the dust collection sleeve 2 through thread screwing.
The collecting part comprises a shell 51, an air inlet 54, a universal wheel 56, a heat radiating port 57, a filter cartridge 52, a fan 53 and an air outlet 55, wherein the air inlet 54 is formed in one end of the shell 51, the air inlet 54 is communicated with one end, far away from a communication disc, of the dust collection working pipe 5, the air inlet 54 penetrates through the shell 51 and is communicated with the filter cartridge 52, one end of the filter cartridge 52 is connected with the fan 53 through a pipeline, the fan 53 is provided with the air outlet 55, and the air outlet 55 penetrates through the shell; the upper end of the shell 51 is provided with a controller, the lower end of the shell is provided with a universal wheel 56, and the side face of the shell is provided with a plurality of heat radiating holes 57.
The application also provides a use method of the ship welding smoke dust collecting device, which comprises the following steps:
s1, moving the ship welding smoke dust collecting device to the position of a to-be-welded working point of a ship, assembling a welding part, a dust collection part and a collection part, and controlling the length of one end of the welding gun nozzle 1 in welding operation to extend into the dust collection sleeve 2 by screwing the dust collection sleeve 2;
s2, starting welding operation, controlling the collection part to work through the controller, operating the fan, and sucking the smoke generated by welding through the dust suction port of the dust suction sleeve 2 on the outer side of the welding gun nozzle 1;
s3, allowing smoke dust to enter the filter cartridge 52 through the dust collection sleeve 2, the communicating pipe 3, the communicating disc 4, the dust collection working pipe 5 and the air inlet 54 for purification treatment;
s4, the purified gas is discharged through the gas outlet 55.
The invention provides a ship welding smoke dust collecting device and a method using the same, which have the following technical effects:
1. the dust collection part is assembled on the periphery of the welding part to form a side-open air suction design, and after a welding seam is formed under gas protection, smoke generated at the position of a welding operation point can be directly sucked and removed, the smoke is not lifted or drifted away, and the smoke is conveyed to the filter cylinder through a pipeline to purify the welding smoke, so that the dust collection efficiency is high, and the purification effect is good;
2. the device can move according to the position of a welding operation point, is flexible and convenient, avoids the limitation of local air draft, can adapt to the complex workshop environment of a ship, and can also adapt to the change of smoke generation points;
3. the device has the advantages that a plurality of parts are detachably connected, the assembly is flexible and simple, the parts can be assembled after being taken to the welding operation point after the welding operation point is selected, the labor amount of workers is reduced, the device is further suitable for the complex workshop environment of the ship, meanwhile, due to the fact that the disassembly and the assembly are convenient, when one part is damaged, the part can be directly replaced, and the maintenance cost is reduced;
4. dust absorption sleeve pipe and welder nozzle can twist the length that control welder nozzle welding operation's one end stretched into the dust absorption sleeve pipe through the screw, then control the dust absorption effect of dust absorption sleeve pipe dust absorption mouth, improve dust collection efficiency and effect according to the environmental suitability of welding operation point position.
Drawings
FIG. 1 is a schematic view of the overall connection of the present invention.
FIG. 2 is a schematic view of the collecting section according to the present invention.
Figure number
1-welding gun nozzle, 2-dust suction sleeve, 3-communicating pipe, 4-communicating disc, 5-dust suction working pipe, 6-sealing ring, 13-welding working pipe, 15-connector II, 16-connector I, 17-connector III, 18-external thread, 19-internal thread, 51-shell, 52-filter cylinder, 53-fan, 54-air inlet, 55-air outlet, 56-universal wheel and 57-heat dissipation port.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Preferred embodiment 1
As shown in fig. 1 and 2, the ship welding fume collecting device provided by the invention comprises a welding part, a dust suction part and a collecting part, wherein the dust suction part is sleeved outside the welding part, the dust suction part is communicated with the collecting part, when the welding part is welded, the dust suction part sleeved outside the welding part performs dust suction work, sucks fume generated during welding, and conveys the fume to the collecting part for purification treatment.
The welding part comprises a welding gun nozzle 1 and a welding work pipe 13, one end of the welding gun nozzle 1 is communicated with the welding work pipe 13 through a first connecting joint 16, and a sealing ring 6 is arranged at the connecting part.
The dust collection part comprises a dust collection sleeve 2, a communicating pipe 3, a communicating disc 4 and a dust collection working pipe 5, wherein the dust collection sleeve 2 is sleeved at one end, close to welding operation, of the welding gun nozzle 1, the communicating pipe 3 is sleeved at the middle section of the welding gun nozzle 1, and a jack is arranged at the lower part of the communicating disc 4 and sleeved at one end, close to a welding working pipe 13, of the welding gun nozzle 1; dust absorption sleeve pipe 2 is close to welding jobs's tip and is provided with the dust absorption mouth, and the one end intercommunication that welding jobs was kept away from to dust absorption sleeve pipe 2 has communicating pipe 3, and dust absorption sleeve pipe 2 and 3 sealing connection communicating pipe, the one end of keeping away from dust absorption sleeve pipe 2 communicating pipe 3 has communicating disc 4 through two 15 intercommunications of connector, the inside hollow setting of communicating disc 4, the upper portion of communicating disc 4 is passed through three 17 of connector and is linked together with 5 one end of dust absorption work pipe.
The inner side surface of the dust collection sleeve 2 is provided with an internal thread 19, the outer side surface of the welding gun nozzle 1 is provided with an external thread 18, the dust collection sleeve 2 and the welding gun nozzle are detachably connected through threads, and meanwhile, one end of the welding operation of the welding gun nozzle 1 can be controlled to stretch into the length of the dust collection sleeve 2 through thread screwing.
The collecting part comprises a shell 51, an air inlet 54, a universal wheel 56, a heat radiating port 57, a filter cartridge 52, a fan 53 and an air outlet 55, wherein the air inlet 54 is formed in one end of the shell 51, the air inlet 54 is communicated with one end, far away from a communication disc, of the dust collection working pipe 5, the air inlet 54 penetrates through the shell 51 and is communicated with the filter cartridge 52, one end of the filter cartridge 52 is connected with the fan 53 through a pipeline, the fan 53 is provided with the air outlet 55, and the air outlet 55 penetrates through the shell; the upper end of the shell 51 is provided with a controller, the lower end of the shell is provided with a universal wheel 56, and the side face of the shell is provided with a plurality of heat radiating holes 57.
Preferred embodiment two
On the basis of the first embodiment, the fan is selected in a comparison mode, the type of the fan is a suction blower, and the main performance requirements are as follows: can stably reach the set rotating speed, the air quantity and the suction force, and has small volume and mass.
The air velocity in the air duct has great influence on the economy of dust removal. The flow rate is high, the section of the air pipe is small, the material consumption is low, and the construction cost is low; however, the system has large resistance, power consumption is increased, and operating cost is increased. Increased wear on equipment and piping and increased noise for a dedusting system. The flow velocity is low, the resistance is small, and the power consumption is low; but the section of the air pipe is large, the material and construction cost is high, and the space occupied by the air pipe is also increased. Too low a flow rate to the dedusting system can cause dust deposition to block the pipeline. Therefore, a reasonable flow rate must be selected by a comprehensive technological-economic comparison. According to the risk summary, the air velocity in the air duct can be determined according to the following dust wind velocity comparison table.
It can be seen from the above table that the speed of 20m/s is theoretically required for completely absorbing the smoke generated by welding, and when the fan is selected, the air leakage and the error of resistance calculation due to the non-tight ventilation pipeline system should be considered, so that the fan can operate reliably, and the air volume and the air pressure of the system should be kept.
| Air supply and exhaust system | Air leakage quantity | Additional amount of pipe network resistance |
| General air supply and exhaust system | 5％—10％ | 10％—15％ |
| Dust removal system | 10％—15％ | 15％—20％ |
| Boiler drum induced draft system | 5％—10％ | 10％—15％ |
According to the data in the table, the maximum margin of 35% is required when the fan is selected, and the air quantity is equal to the sectional area multiplied by the wind speed multiplied by the time. Taking a pipeline with a diameter of 50mm as an example, if dust is sucked at a speed of 20m/s, thenThe required air volume per hour was 141.3m3If a margin of 35% is required, the required air volume is 190.755m3H is used as the reference value. Through the comparison of air volume, overall dimension and weight and the expansibility analysis of subsequent products, the finally selected fan parameters are as follows.
| Power of | Maximum suction force | Maximum pressure | Air quantity | Maximum rotation speed | Weight (D) |
| 1200W | 28.6KPa | 25.5KPa | 253m3/h | 20000r/min | 3.0KG |
Preferred embodiment three
On the basis of the second embodiment, the filter cartridge is selected to ensure that the recovered welding fume is required, and the filtering discharge meets the requirements. The selected filter cartridge is an industrial dust removal filter cartridge of an all-steel structure, is firm and durable, is provided with a copper welding interface, has high air tightness, large scale containing space and easy cleaning, is sealed by adopting an O-shaped ring, has the maximum vacuum value lower than 1pa, and is provided with a paper filter element, and the filtering precision reaches 99%. The filter cartridge is removable and can be replaced without using any auxiliary tool.
Preferred embodiment four
On the basis of the third embodiment, in order to realize the protection effect of welding carbon dioxide gas without being influenced and absorb smoke dust with the maximum efficiency, the nozzle form of the welding gun is researched and shaped, and the dust suction sleeve 2 is finally designed to be in a cone sleeve form and has the length of 30mm or 40 mm. The air suction range of the gun mouth in the form of the taper sleeve is large, and the effect is good.
Preferred embodiment five
The application also provides a use method of the ship welding smoke dust collecting device, which comprises the following steps:
s1, moving the ship welding smoke dust collecting device to the position of a to-be-welded working point of a ship, assembling a welding part, a dust collection part and a collection part, and controlling the length of one end of the welding gun nozzle 1 in welding operation to extend into the dust collection sleeve 2 by screwing the dust collection sleeve 2;
s2, starting welding operation, controlling the collection part to work through the controller, operating the fan, and sucking the smoke generated by welding through the dust suction port of the dust suction sleeve 2 on the outer side of the welding gun nozzle 1;
s3, allowing smoke dust to enter the filter cartridge 52 through the dust collection sleeve 2, the communicating pipe 3, the communicating disc 4, the dust collection working pipe 5 and the air inlet 54 for purification treatment;
s4, the purified gas is discharged through the gas outlet 55.
In order to further verify whether the dust collection effect of the welding fume collection device meets the design and environmental requirements in practical application, the pm2.5 and pm10 content is detected at different distances (0.5m, 1m, 2m and 2.5m) right above a welding point under the condition that equipment is opened and the equipment is not opened. The test results are shown in the following table.
Through data analysis in the table, the average value of the content of PM2.5 and PM10 in the case of the collecting device is 15% of that in the case of no collecting device, so that the welding fume collecting effect can reach about 85% in the case of using the welding fume collecting device.
Through this application welding smoke and dust collection device's trial-manufacturing, carried out corresponding cost analysis to it, the following table shows this application welding smoke and dust collection device's main material expense.
It can be seen from the table that the material cost of the portable welding smoke dust collecting device is about 5800, and the cost associated with the manufacturing labor cost, the coating and the like is added, so that the cost of a single device is estimated to be not more than 10000 yuan, and the cost of the smoke dust collecting device is only 20% of the cost of the similar smoke dust collecting device, compared with the purchase cost of about 5 ten thousand yuan of the similar smoke dust collecting device, the expected aim of collecting the welding smoke dust can be still completely realized while the investment cost of enterprises is greatly reduced.
The present invention is not limited to the above preferred embodiments, and any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a boats and ships welding smoke and dust collection device which characterized in that: contain welding part, dust absorption portion and collection portion, dust absorption portion cup joints the outside of welding part, dust absorption portion with collection portion communicates mutually when the welding part carries out welding operation, cup joints the dust absorption portion in the welding part outside carries out dust absorption work, and the smoke and dust is carried collection portion carries out purification treatment.
2. The ship welding fume collecting device as claimed in claim 1, wherein the welding part comprises a welding torch nozzle and a welding work pipe, one end of the welding torch nozzle is communicated with the welding work pipe through a first connecting joint, and a sealing ring is arranged at the connecting joint.
3. The ship welding fume collecting device according to claim 2, wherein the dust collecting part comprises a dust collecting sleeve, a communicating pipe, a communicating disc and a dust collecting working pipe, the dust collecting sleeve is sleeved at one end of the welding gun nozzle close to the welding operation, the communicating pipe is sleeved at the middle section of the welding gun nozzle, and a jack is arranged at the lower part of the communicating disc and sleeved at one end of the welding gun nozzle close to the welding working pipe; the utility model discloses a welding operation, including dust absorption sleeve pipe, communicating pipe, connecting head two, connecting dish inside hollow setting, the tip that the dust absorption sleeve pipe is close to welding operation is provided with the dust absorption mouth, and the one end intercommunication that welding operation was kept away from to the dust absorption sleeve pipe has communicating pipe, and dust absorption sleeve pipe and communicating pipe sealing connection, the one end that the dust absorption sleeve pipe was kept away from to communicating pipe has the communicating dish through connecting head two intercommunication, the inside hollow setting of communicating dish, the upper portion of communicating dish is passed through connecting head three and dust absorption work pipe one end intercommunication.
4. The ship welding dust collecting device of claim 3, wherein the inner side of the dust collecting sleeve is provided with an internal thread, and the outer side of the welding gun nozzle 1 is provided with an external thread.
5. The ship welding fume collecting device of claim 4, wherein the collecting part comprises a shell, an air inlet, a universal wheel, a heat dissipation port, a filter cylinder, a fan and an air outlet, the air inlet is arranged at one end of the shell, the air inlet is communicated with one end, away from the communication disc, of the dust suction working pipe, the air inlet penetrates through the shell and is communicated with the filter cylinder, one end of the filter cylinder is connected with the fan through a pipeline, the fan is provided with the air outlet, and the air outlet penetrates through the shell; the improved radiator is characterized in that a controller is arranged at the upper end of the shell, universal wheels are arranged at the lower end of the shell, and a plurality of radiating holes are formed in the side face of the shell.
6. The ship welding fume collecting device as recited in claim 5, wherein said blower is a suction blower with a power of 1200W, a maximum suction of 28.6KPa, a maximum pressure of 25.5KPa, an air flow of 253m3/h, a maximum rotation speed of 20000r/min, and a weight of 3.0 KG.
7. The marine welding fume collecting device as recited in claim 6, wherein the filter cartridge is of an all-steel structure, is sealed by an O-ring, has a maximum vacuum value lower than 1pa, is provided with a paper filter element, and is replaced in a removable manner.
8. The marine welding fume collecting device as set forth in claim 7, wherein said dust suction sleeve is in the form of a tapered sleeve and has a length of 30mm or 40 mm.
9. The use method of the ship welding fume collecting device of any one of claims 1-8, comprising the following steps:
s1, moving the ship welding smoke dust collecting device to the position of a to-be-welded working point of a ship, assembling the welding part, the dust collection part and the collection part, and controlling the length of one end of the welding gun nozzle during welding operation to extend into the dust collection sleeve by screwing the dust collection sleeve;
s2, starting welding operation, controlling the collection part to work through the controller, operating the fan, and sucking the smoke generated by welding through the dust suction port of the dust suction sleeve outside the nozzle of the welding gun;
s3, allowing smoke dust to enter the filter cartridge for purification through the dust collection sleeve, the communicating pipe, the communicating disc, the dust collection working pipe and the air inlet;
and S4, discharging the purified gas through a gas outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202111024691.5A CN113732001A (en) | 2021-09-02 | 2021-09-02 | Ship welding smoke dust collecting device and using method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111024691.5A CN113732001A (en) | 2021-09-02 | 2021-09-02 | Ship welding smoke dust collecting device and using method thereof |
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| CN113732001A true CN113732001A (en) | 2021-12-03 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4000392A (en) * | 1974-07-01 | 1976-12-28 | United Technologies Corporation | Fusion zone purification by controlled laser welding |
| CN201664690U (en) * | 2010-03-12 | 2010-12-08 | 南通克莱克空气处理设备有限公司 | Multifunctional weld fume purification system |
| US20150014291A1 (en) * | 2013-07-11 | 2015-01-15 | Deere & Company | Flexible welding fume collector |
| CN209865644U (en) * | 2019-01-18 | 2019-12-31 | 湖北天利化建工程有限公司 | Welding fume purification device |
| CN112045341A (en) * | 2020-09-08 | 2020-12-08 | 武汉新时达环保科技有限公司 | Robot welding smoke purifies collection device |
| CN212311224U (en) * | 2020-04-03 | 2021-01-08 | 浙江天洲车轮有限公司 | Wheel hub welding dust extraction |
-
2021
- 2021-09-02 CN CN202111024691.5A patent/CN113732001A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4000392A (en) * | 1974-07-01 | 1976-12-28 | United Technologies Corporation | Fusion zone purification by controlled laser welding |
| CN201664690U (en) * | 2010-03-12 | 2010-12-08 | 南通克莱克空气处理设备有限公司 | Multifunctional weld fume purification system |
| US20150014291A1 (en) * | 2013-07-11 | 2015-01-15 | Deere & Company | Flexible welding fume collector |
| CN209865644U (en) * | 2019-01-18 | 2019-12-31 | 湖北天利化建工程有限公司 | Welding fume purification device |
| CN212311224U (en) * | 2020-04-03 | 2021-01-08 | 浙江天洲车轮有限公司 | Wheel hub welding dust extraction |
| CN112045341A (en) * | 2020-09-08 | 2020-12-08 | 武汉新时达环保科技有限公司 | Robot welding smoke purifies collection device |
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Application publication date: 20211203 |