CN112025149A - Welding smoke dust treatment system of large box girder - Google Patents
Welding smoke dust treatment system of large box girder Download PDFInfo
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- CN112025149A CN112025149A CN202010977526.0A CN202010977526A CN112025149A CN 112025149 A CN112025149 A CN 112025149A CN 202010977526 A CN202010977526 A CN 202010977526A CN 112025149 A CN112025149 A CN 112025149A
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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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
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Abstract
The invention discloses a welding fume treatment system for a large box girder, which comprises an air suction arm, an air suction cover, a telescopic work shed, an integrated dust removal welding gun, a clamping type dust removal component, a blowing-sucking type dust removal component, a movable welding fume processor and a polishing dust removal component.
Description
Technical Field
The invention relates to the technical field of metal structure welding production, in particular to a welding smoke treatment system for a large box girder.
Background
The large box girder structure is widely applied to crane booms, traveling cranes, gantry cranes, shore bridges, site bridges, bulk cargo, bridges, building steel structures and the like, and has the advantages of large length, long members of 60-80m, wide members of 0.5-2 m and high members of 0.5-3 m, complex structure and narrow space, so that the large box girder manufacturing is a labor-intensive industry with high technology, high standard and high risk.
The smoke dust in the welding smoke is a very complex substance, more than 20 elements are found in the smoke dust, and the particle size of the smoke dust is 0.01-5 mu m. The most abundant of them are Fe, Ca, Na, etc., and the second is Si, Al, Mn, Ti, Cu, etc. The main harmful substance in the welding fume is Fe2O3、SiO2MnO, HF, etc., wherein the content of Fe is the most2O3. Generally 35.56% of the total smoke, followed by SiO2The content of the MnO is about 10-20% and the content of MnO is about 5-20%. The poisonous and harmful gas in the welding fume mainly comprises CO and CO2、O3、NOX、CH4And the like.
The pollution generated in the welding process is various and serious in harm, various occupational diseases (such as silicosis, manganese poisoning and the like of welders) can be caused, and the method becomes a great environmental pollution.
Most of box girder construction welding, polishing, application still adopt manual or semi-automatization, and the work environment is abominable, and environmental pollution is serious, and product quality is unstable, and production efficiency is low, and workman intensity of labour is big, and the safety risk is high to and environmental protection VOC discharges and requires urgent, and emission reduction charges are high etc.. Particularly, as society pays more and more attention to the occupational environment and the health condition, a large amount of toxic and dust pollution exists in the traditional welding and coating production mode, so that the labor force of enterprises is continuously lost.
Therefore, how to change the current situation that a large amount of toxic dust is generated in the welding production process of the large box girder structure to pollute the environment and cause great harm to the health of operators in the prior art becomes a problem to be solved by the technical personnel in the field.
Disclosure of Invention
The invention aims to provide a welding smoke dust treatment system for a large box girder, which aims to solve the problems in the prior art, effectively treat dust generated in the welding production process of a large box girder structure and avoid the pollution of the dust to the environment and the harm to the health of operators.
In order to achieve the purpose, the invention provides the following scheme: the invention provides a welding fume treatment system for a large box girder, which comprises:
the air suction arm can be connected with an external air source and comprises a mounting seat and an air suction pipe, the air suction pipe is rotatably arranged on the mounting seat, and the air suction pipe can suck dust generated in the fixed-point welding process;
the dust collector comprises an air suction cover, a dust collecting device and a dust collecting device, wherein the air suction cover can be communicated with an external air source, can cover a fixed-point operation area, and can absorb dust in the fixed-point operation area;
the telescopic work shed can shield an operation area, and can be telescopic;
the integral dust removal welding gun is provided with a dust suction element, and the dust suction element can move along with the integral dust removal welding gun and collect dust generated by welding;
the clamping type dust removal assembly comprises a clamping welding gun and a dust collection pipe, the clamping welding gun is connected with the dust collection pipe, the dust collection pipe is connected with a high negative pressure dust removal host, and the high negative pressure dust removal host can drive the dust collection pipe to absorb dust;
the blowing-sucking type dust collection assembly comprises an air blowing port and an air suction port, and the air blowing port and the air suction port can be communicated with the inner cavity of the box girder;
the movable welding fume processor comprises a communicating pipe and a filter element, wherein the communicating pipe can absorb dust in an operation area, and the filter element can filter the dust;
the polishing and dust removing assembly comprises a polishing element and a dust hood, the dust hood is covered outside the polishing element, the bottom of the dust hood is open, and the dust hood can absorb dust generated by the work of the polishing element.
Preferably, the number of the air suction arms is multiple, the air suction arms are connected in parallel, and the distance between every two adjacent air suction arms is smaller than the rotating radius of each air suction arm; the suction arm is connected with an extension rod, and the suction arm is connected with an external air source through the extension rod.
Preferably, the air suction pipe comprises a hard pipe and a hose which are communicated, the hard pipe is communicated with an external air source, the hose is arranged on one side, close to the large box girder, of the air suction pipe, and the hose is made of a flexible material.
Preferably, when the length of the large box girder is not more than 10m, the air suction arm, the integrated dust removal welding gun and the grinding and dust removal assembly work in cooperation, and the length of the air suction arm is 14 m.
Preferably, when the length of the large box girder is 10-80m, the air suction arm, the clamping type dust removal component, the blowing and sucking type dust removal component and the grinding and dust removal component work in cooperation.
Preferably, when the large box girder is a girder, the number of the air blowing openings is three, one of the air blowing openings and the air suction opening are respectively communicated with openings at two ends of the girder in the axial direction, and the other two air blowing openings are arranged on the same side surface of the girder and are communicated with an inner cavity of the girder.
Preferably, when the large box girder is an upright post, the number of the air blowing openings is two, the axes of the two air blowing openings are perpendicular to each other, one air blowing opening and the air suction opening are located at two ends of the upright post in the axial direction, and the other air blowing opening is located at one end, far away from the air suction opening, of the side surface of the upright post.
Preferably, when the large box girder is a cross beam, the air blowing port and the air suction port are located on the same side of the cross beam and are communicated with an inner cavity of the cross beam.
Preferably, when the large box girder is assembled outdoors, the integrated dust removal welding gun and the clamping type dust removal assembly work in cooperation.
Compared with the prior art, the invention has the following technical effects: the welding fume treatment system for the large box girder comprises an air suction arm, an air suction cover, a telescopic work shed, an integrated dust removal welding gun, a clamping type dust removal component, a blowing and sucking type dust removal component, a movable welding fume processor and a polishing and dust removal component.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural view of an air suction arm of the welding fume abatement system for large box girders of the present invention;
FIG. 2 is a schematic plan view of the layout of the suction arm shop of the welding fume abatement system for large box girders of the present invention;
FIG. 3 is a schematic side view of the shop floor layout of the suction arms of the welding fume abatement system for large box girders of the present invention;
FIG. 4 is a schematic view of a girder of the blowing-sucking type dust removing component of the welding fume treatment system for the large box girder of the present invention in operation;
FIG. 5 is a schematic view of an upright post of a blow-suction type dust removal assembly of the welding fume abatement system for large box girders according to the present invention in operation;
FIG. 6 is a schematic view of a cross beam of the blowing-suction type dust removal component of the welding fume abatement system for large box girders of the present invention during operation;
FIG. 7 is a schematic view of a movable welding fume processor of the welding fume abatement system for large box girders of the present invention;
wherein, 1 is an air suction arm, 2 is a movable welding smoke dust processor, 3 is an air blowing port, and 4 is an air suction port.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a welding smoke dust treatment system for a large box girder, which aims to solve the problems in the prior art, effectively treat dust generated in the welding production process of a large box girder structure and avoid the pollution of the dust to the environment and the harm to the health of operators.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Referring to fig. 1-7, wherein fig. 1 is a schematic structural view of a suction arm of a welding fume abatement system for large box girders according to the present invention, FIG. 2 is a schematic plan view of the layout in the suction arm workshop of the welding fume abatement system for large box girders of the present invention, FIG. 3 is a schematic side view of the shop floor layout of the suction arm of the welding fume abatement system for large box girders of the present invention, FIG. 4 is a schematic view of a girder of the blowing-sucking type dust removing component of the welding fume treatment system for large box girders according to the present invention in operation, FIG. 5 is a schematic view of the upright post of the blow-suction type dust removal component of the welding fume abatement system for large box girders according to the present invention in operation, FIG. 6 is a schematic view of a cross beam of the blowing-sucking type dust removing component of the welding fume abatement system for large box girders of the present invention in operation, FIG. 7 is a schematic view of a removable weld fume processor of the weld fume abatement system for large box girders of the present invention.
The invention provides a welding fume treatment system for a large box girder, which comprises:
inhale air arm 1, inhale air arm 1 and can link to each other with outside air supply, inhale air arm 1 and include mount pad and breathing pipe, the breathing pipe rotationally sets up on the mount pad, and the dust that fixed point welding process produced can be absorb to the breathing pipe.
The air suction cover can be communicated with an external air source, the air suction cover can cover the fixed-point operation area, and the air suction cover can suck dust in the fixed-point operation area.
The telescopic work shed can shield an operation area and can stretch to adapt to welding work of large box girders of different specifications.
The integral type dust removal welder, integral type dust removal welder have dust absorption component, and dust absorption component can move and collect the dust that the welding produced along with integral type dust removal welder. The high-temperature resistant material is adopted, and the temperature of welding fume close to a molten pool is high, so that the integral dedusting welding gun has requirements on the overall temperature resistance. The dust suction element is 304 stainless steel, the shell is reinforced nylon, the air flue adopts the fixed gun body with the built-in straight wing to increase the air flow, and the defect of small flow of the existing dust removal welding gun is overcome. The outer pipe adopts a high-rigidity spring matched with a high-temperature-resistant fiber protective pipe, so that the air passage blockage caused by the deformation of the outer pipe is prevented at high temperature and high pressure. The outer layer of the cable is subjected to carbonization irradiation mastication, and is high-temperature resistant and crack resistant.
Centre gripping formula dust removal subassembly, centre gripping formula dust removal subassembly include centre gripping welder and dust absorption pipe, and centre gripping welder and dust absorption pipe link to each other, and the dust absorption union coupling has high negative pressure dust removal host computer, and high negative pressure dust removal host computer can drive the dust absorption pipe and absorb the dust. Centre gripping formula dust removal component adopts light aluminum alloy material preparation, whole centre gripping formula dust removal component weight is less than 600g, adopt buckle formula rapid disassembly structure, the workshop workman welding operation of being convenient for, the advantage that is equipped with the centre gripping component on the centre gripping welder lies in that external dust absorption pipe can change the locating place along with the welding operation demand, and can change the suction inlet of dust absorption pipe and the distance between the welding seam according to actual conditions, avoid influencing the guard action of protective gas to the welding seam, it is more nimble, be favorable to improving welding quality.
The blowing-sucking type dust removal component comprises an air blowing opening 3 and an air suction opening 4, and the air blowing opening 3 and the air suction opening 4 can be communicated with an inner cavity of the box girder.
Movable welding smoke and dust treater 2, movable welding smoke and dust treater 2 include communicating pipe and filter core, can absorb the dust in operation region communicating pipe, and the filter core can filter the dust.
The polishing and dust removing assembly comprises a polishing element and a dust hood, the dust hood is arranged outside the polishing element, the bottom of the dust hood is open, dust generated by the work of the polishing element can be absorbed by the dust hood, the dust hood is detachably connected with the polishing element, the rapid disassembly and assembly are convenient, when the plane is polished, the dust hood is cylindrical, and a cylindrical dust hood with a notch is adopted when fillet welds are polished.
The welding fume treatment system for the large box girder comprises an air suction arm 1, an air suction cover, a telescopic work shed, an integrated dust removal welding gun, a clamping type dust removal component, a blowing and sucking type dust removal component, a movable welding fume processor 2 and a polishing and dust removal component.
The number of the air suction arms 1 is multiple, the air suction arms 1 are connected in parallel, the air suction arms 1 are uniformly distributed at equal intervals, and the distance between every two adjacent air suction arms 1 is smaller than the rotating radius of each air suction arm 1; the air suction arm 1 is connected with an extension rod, and the air suction arm 1 is connected with an external air source by the extension rod. The number of the gas suction arms 1 is specifically distributed according to the scale of a workshop, stations for manufacturing small prefabricated structural parts are welded by flux-cored wire carbon dioxide gas shielded welding, and generated welding smoke is treated in a gas suction arm 1 mode and is treated in an auxiliary way by an integrated dust removal welding gun.
In order to improve the adaptability of the air suction arm 1, the air suction pipe comprises a hard pipe and a hose which are communicated, the hard pipe is communicated with the extension rod, the hose is arranged on one side, close to the large box girder, of the air suction pipe, the hose is made of flexible materials, the hose is arranged to facilitate the air suction arm 1 to convert the working position, and the flue gas dust treatment effect is enhanced.
When the length of the large box girder is not more than 10m, the air suction arm 1, the integrated dust removal welding gun and the polishing dust removal component work in cooperation, the length of the air suction arm 1 is 14m, in the specific embodiment, the effective range of the air suction arm 1 provided with the extension rod is 14-19m, the front end of the air suction arm is manually moved within a range of 15 m (the movable rotating part is composed of two sections, and a rotary supporting structure is adopted), the effective moving range of the tail end of the air suction arm 1 is 4m (the tail end specification of the air suction arm 1 is 2, 3 and 4 meters can be selected), when a welder corresponds to a certain working range of the air suction arm 1, a switch corresponding to the air suction arm 1 is turned on, the air suction arm 1 starts to work, the on-way and the local resistance of a pipeline are considered, and in order to ensure the dust removal effect, the design air volume of the single air suction arm 1 is 2500.
When the length of the large box girder is 10-80m, the air suction arm 1, the clamping type dust removal component, the blowing-sucking type dust removal component and the polishing dust removal component work cooperatively. The blowing-sucking type dust removal component comprises an air blowing opening 3 and an air suction opening 4, the air blowing opening 3 adopts an axial flow air supply fan, and the air suction opening 4 sucks air and collects welding smoke dust. In the clamping type dust removal component, a suction port of the dust collection pipe is positioned at the upper part of the clamping welding gun, smoke dust, particulate matters and dust generated during welding are captured by the suction port at the upper part of the clamping welding gun, then enter the high negative pressure dust removal host through the dust collection pipe, and clean air after filtration and purification is discharged from an air outlet of the high negative pressure dust removal host. In addition, when the length of the large box girder is longer, the telescopic work shed can be selected and utilized, and the pollution of dust to the environment is reduced.
When the large box girder is a girder, the number of the air blowing openings 3 is three, one of the air blowing openings 3 and the air suction opening 4 are respectively communicated with openings at two ends of the girder in the axial direction, and the other two air blowing openings 3 are arranged on the same side surface of the girder and are communicated with an inner cavity of the girder.
When the large box girder is an upright column, two air blowing openings 3 are provided, the axes of the two air blowing openings 3 are vertical, one air blowing opening 3 and the air suction opening 4 are positioned at two ends of the axial direction of the upright column, and the other air blowing opening 3 is positioned at one end of the side surface of the upright column, which is far away from the air suction opening 4.
When the large box girder is a cross beam, the air blowing port 3 and the air suction port 4 are positioned on the same side of the cross beam and are communicated with the inner cavity of the cross beam.
When the large box girder outdoor assembly is carried out, the integrated dust removal welding gun and the clamping type dust removal assembly work in a cooperative mode. The outfield is influenced by wind and the huge volume of the components after assembly, and an integrated dedusting welding gun and a movable welding smoke processor 2 are adopted to work cooperatively. Simultaneously for the welding smoke and dust of high-efficient and convenient collection each part in external field, adopt portable integral type frock as the platform of smoke and dust equipment, this frock can be with welding machine and dust collecting equipment integration, it is convenient to have realized using and transporting.
The welding fume treatment system for the large box girder comprises an air suction arm 1, an air suction cover, a telescopic work shed, an integrated dust removal welding gun, a clamping type dust removal component, a blowing and sucking type dust removal component, a movable welding fume processor 2 and a polishing and dust removal component.
The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (9)
1. The utility model provides a welding fume treatment system of large-scale case roof beam which characterized in that includes:
the air suction arm can be connected with an external air source and comprises a mounting seat and an air suction pipe, the air suction pipe is rotatably arranged on the mounting seat, and the air suction pipe can suck dust generated in the fixed-point welding process;
the dust collector comprises an air suction cover, a dust collecting device and a dust collecting device, wherein the air suction cover can be communicated with an external air source, can cover a fixed-point operation area, and can absorb dust in the fixed-point operation area;
the telescopic work shed can shield an operation area, and can be telescopic;
the integral dust removal welding gun is provided with a dust suction element, and the dust suction element can move along with the integral dust removal welding gun and collect dust generated by welding;
the clamping type dust removal assembly comprises a clamping welding gun and a dust collection pipe, the clamping welding gun is connected with the dust collection pipe, the dust collection pipe is connected with a high negative pressure dust removal host, and the high negative pressure dust removal host can drive the dust collection pipe to absorb dust;
the blowing-sucking type dust collection assembly comprises an air blowing port and an air suction port, and the air blowing port and the air suction port can be communicated with the inner cavity of the box girder;
the movable welding fume processor comprises a communicating pipe and a filter element, wherein the communicating pipe can absorb dust in an operation area, and the filter element can filter the dust;
the polishing and dust removing assembly comprises a polishing element and a dust hood, the dust hood is covered outside the polishing element, the bottom of the dust hood is open, and the dust hood can absorb dust generated by the work of the polishing element.
2. The welding fume abatement system for large-scale box girders according to claim 1, characterized in that: the number of the air suction arms is multiple, the air suction arms are connected in parallel, and the distance between every two adjacent air suction arms is smaller than the rotating radius of each air suction arm; the suction arm is connected with an extension rod, and the suction arm is connected with an external air source through the extension rod.
3. The welding fume abatement system for large-scale box girders according to claim 2, characterized in that: the air suction pipe comprises a hard pipe and a hose which are communicated, the hard pipe is communicated with an external air source, the hose is arranged on one side, close to the large box girder, of the air suction pipe, and the hose is made of a flexible material.
4. The welding fume abatement system for large-scale box girders according to claim 1, characterized in that: when the length of the large box girder is not more than 10m, the air suction arm, the integrated dust removal welding gun and the polishing and dust removal assembly work in a cooperative mode, and the length of the air suction arm is 14 m.
5. The welding fume abatement system for large-scale box girders according to claim 1, characterized in that: when the length of the large box girder is 10-80m, the air suction arm, the clamping type dust removal component, the blowing-sucking type dust removal component and the polishing dust removal component work in cooperation.
6. The welding fume abatement system for large box girders according to claim 5, wherein: when the large box girder is a girder, the number of the air blowing openings is three, one of the air blowing openings and the air suction opening are respectively communicated with openings at two ends of the girder in the axial direction, and the other two air blowing openings are arranged on the same side surface of the girder and are communicated with an inner cavity of the girder.
7. The welding fume abatement system for large box girders according to claim 5, wherein: when the large box girder is an upright post, the number of the air blowing openings is two, the axes of the two air blowing openings are vertical, one air blowing opening and the air suction opening are positioned at two ends of the upright post in the axial direction, and the other air blowing opening is positioned at one end, far away from the air suction opening, of the side surface of the upright post.
8. The welding fume abatement system for large box girders according to claim 5, wherein: when the large box girder is a cross beam, the air blowing port and the air suction port are positioned on the same side of the cross beam and are communicated with the inner cavity of the cross beam.
9. The welding fume abatement system for large-scale box girders according to claim 1, characterized in that: when the large box girder outdoor assembly is carried out, the integrated dust removal welding gun and the clamping type dust removal assembly work in a cooperative mode.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010977526.0A CN112025149A (en) | 2020-09-17 | 2020-09-17 | Welding smoke dust treatment system of large box girder |
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| CN202010977526.0A CN112025149A (en) | 2020-09-17 | 2020-09-17 | Welding smoke dust treatment system of large box girder |
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Cited By (1)
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Application publication date: 20201204 |
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