Smoke purification device for welding of seamless cored wire

Abstract

The utility model relates to the technical field of air purification equipment, in particular to a seamless cored wire welding smoke purification device. Comprising a dust filtering tank, a centrifugal tank is suspended in the dust filtering tank close to the bottom end, a centrifugal fan is rotatably mounted at the upper end opening of the centrifugal tank, the side wall of the centrifugal tank is communicated with an annular gas collecting pipe through a conveying pipe, and a plurality of gas collecting holes are annularly arrayed in the inner wall of the gas collecting pipe; an inclined insertion pipe is inserted into the side wall of the upper end of the dust filtering tank, is tangent to the side wall of the dust filtering tank and is communicated with an air pump. According to the device, flue gas is sucked into the centrifugal tank, upward rotational flow is generated under the centrifugal effect, dust sucked into the flue gas is thrown out under the centrifugal effect and is attached to the inner wall of the dust filtering tank, and separation of the flue gas and powder particles is achieved; and meanwhile, the air pump injects air into the inner cover of the dust filtering tank, and downward rotational flow is formed, so that the dust adsorbed on the inner wall of the dust filtering tank is blown downwards and discharged outwards, and the purpose of discharging dust is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of air purification equipment, and in particular to a seamless cored wire welding fume purification device. Background Art

[0002] Core-wrapped wire is made of alloy powder wrapped around a steel strip, primarily through inoculation, refining outside the furnace, and alloying with special elements. Core-wrapped wire allows for more efficient addition of smelting materials to molten steel or iron during the steelmaking or casting process. Professional wire feeding equipment allows the core-wrapped wire to be inserted into the ideal position. Once the core-wrapped wire skin melts, the core is fully dissolved and chemically reacts at the ideal location, effectively avoiding reactions with air and slag and increasing the absorption rate of the smelting materials. It is widely used as a deoxidizer, desulfurizer, and alloying additive, altering the morphology of molten steel inclusions and effectively improving the quality of steelmaking and casting products.

[0003] Manufacturing process of cored wire 1:

[0004] 1. Select the required metals according to the ratio, grind them into powder and mix them, and then fill the mixed powder into tanks for storage;

[0005] 2. The steel strip is rolled up and stretched. The stretched and flattened steel strip moves along the conveyor system to the bottom of the metal powder storage tank. The storage tank unloads the material onto the surface of the steel strip, and then the subsequent reel is reeled at low pressure. The steel strip is reeled and coated with metal powder, thus forming the cored wire 1 prototype;

[0006] 3. There are seams on the surface of the cored wire that has just been wound. In order to prevent powder from leaking from the seams, a welding machine is required to weld the seams to form a seamless cored wire. The cored wire after welding can be completed after cooling and grinding.

[0007] During the aforementioned process, welding cored wire inevitably generates smoke. This smoke is not only unpleasant and choking, but also obstructs vision. Therefore, it is essential to exhaust the smoke promptly. In most cases, factories install air pumps at the welding points to extract the smoke. This method is not only inefficient, but also inevitably introduces dust particles into the air. This dust is then discharged directly with the smoke, causing air pollution and potentially harming health if inhaled.

[0008] To this end, the present application provides a seamless cored wire welding fume purification device to filter and purify the dust in the exhaust fume gas. Utility Model Content

[0009] The purpose of this application is to solve the problems existing in the prior art and to propose a seamless cored wire welding fume purification device.

[0010] In order to achieve the above objectives, this application adopts the following technical solutions:

[0011] A seamless cored wire welding fume purification device comprises a dust filter canister suspended on the side of a welding machine, wherein an exhaust pipe and a dust exhaust pipe are respectively provided at the upper and lower ends of the dust filter canister, a centrifugal canister is suspended near the bottom end of the dust filter canister, a centrifugal fan is rotatably installed at the can mouth of the centrifugal canister, the side wall of the centrifugal canister is connected to an annular gas collecting pipe located below the welding end of the welding machine through a conveying pipe, and a plurality of gas collecting holes are arranged in an annular array on the inner wall of the gas collecting pipe; an inclined insert is inserted into the side wall of the upper end of the dust filter canister, the insert is tangent to the side wall of the dust filter canister, and the insert is connected to an air pump.

[0012] Preferably, the connection point between the conveying pipe and the dust filter tank is located below the centrifugal fan.

[0013] Preferably, a mounting sleeve is fixedly installed on the upper end of the gas collecting pipe, and the mounting sleeve is screwed onto the welding end of the welding machine; the delivery pipe is a hose.

[0014] Preferably, a sleeve is rotatably mounted on the outer wall of the mounting sleeve, and the gas collecting pipe is mounted on the sleeve.

[0015] Preferably, the installation sleeve is inserted into the welding end of the welding machine, and a nut is screwed onto the welding end of the welding machine, and the nut rests on the installation sleeve.

[0016] Preferably, the air inlet and the exhaust pipe port of the air pump are both equipped with dust filter boxes, and an activated carbon box is installed above the dust filter box on the exhaust pipe.

[0017] Preferably, the side wall of the dust filter tank is provided with an openable and closable window.

[0018] Compared with the prior art, this application provides a seamless cored wire welding fume purification device, which has the following beneficial effects:

[0019] During the welding process, the motor drives the centrifugal fan to generate suction. Fumes generated by welding are drawn into the gas collection pipe through the gas collection holes and then into the centrifuge tank via the delivery pipe. The rotation of the centrifugal fan stirs the smoke, causing it to rise in a spiraling motion, creating a centrifugal vortex. This centrifugal force dislodges large and heavier particles, which adhere to the inner wall of the dust filter, filtering them out. The gas continues to rise and is discharged through the exhaust pipe. The air pump injects gas into the dust filter tank. Because the cannula is inserted tangentially into the dust filter and is tilted downward, the gas injected by the air pump creates a downward vortex, pushing any dust adhering to the inner wall of the dust filter toward the dust exhaust pipe below, achieving dust removal.

[0020] Other advantages, objectives and features of the present application will be described in part in the following description; and in part, will be apparent to those skilled in the art based on an examination of the following; or, may be taught from the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a left-hand axial view of the present application.

[0022] Figure 2 This is a right-hand axis view of the present application.

[0023] Figure 3 This is a schematic three-dimensional diagram of the assembly of the dust filter canister of this application.

[0024] Figure 4 This is a schematic three-dimensional diagram of the assembly of the centrifuge tank of this application.

[0025] Figure 5 This is the front view of the application.

[0026] Figure 6 This is a schematic cross-sectional view of the present application.

[0027] Figure 7 For this application Figure 6 Schematic diagram of the dust filter canister cross-section.

[0028] In the figure: 1. cored wire; 2. dust filter tank; 3. hydraulic rod; 4. welding machine; 5. exhaust pipe; 6. dust exhaust pipe; 7. air pump; 8. cannula; 9. centrifugal tank; 10. centrifugal fan; 11. delivery pipe; 12. gas collecting pipe; 13. installation sleeve; 14. dust filter box; 15. activated carbon box. DETAILED DESCRIPTION

[0029] The following is a combination of the appended examples of the present application Figure 1-7 , the technical solutions in the embodiments of the present application are described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0030] In order to solve the problems existing in the prior art, the present embodiment provides a seamless cored wire welding fume purification device, comprising a dust filter tank 2 suspended on the side of a welding machine 4, wherein the upper and lower ends of the centrifugal tank 9 are both closed. The upper and lower ends of the dust filter tank 2 are respectively provided with an exhaust pipe 5 and a dust exhaust pipe 6. A centrifugal tank 9 is suspended near the bottom end of the dust filter tank 2. A centrifugal fan 10 is rotatably installed on the upper end of the centrifugal tank 9. The side wall of the centrifugal tank 9 is connected to an annular gas collecting pipe 12 located below the welding end of the welding machine 4 through a conveying pipe 11. The inner wall of the gas collecting pipe 12 has a plurality of gas collecting holes in an annular array. An inclined insert 8 is inserted into the upper side wall of the dust filter tank 2. The insert 8 is tangent to the side wall of the dust filter tank 2 and is connected to an air pump 7.

[0031] Details of the rationale for this application:

[0032] A seamless cored wire welding fume purification device includes a dust filter tank 2, the bottom end of the dust filter tank 2 is provided with a support frame to suspend the dust filter tank 2, refer to the attached Figure 5 As shown, the dust filter tank 2 and welding machine 4 are symmetrically arranged along the cored wire 1. The welding machine 4 is driven vertically by a hydraulic rod 3. The dust filter tank 2 is provided with an exhaust pipe 5 and a dust exhaust pipe 6 at its upper and lower ends, respectively. The exhaust pipe 5 and the dust exhaust pipe 6 are both closed at their connection to the dust filter tank 2 to facilitate the collection and discharge of fumes and dust.

[0033] An insert tube 8 is inserted into the side wall of the upper end of the dust filter tank 2, and the insert tube 8 is tilted relative to the dust filter tank 2. The tilted insert tube 8 is aligned with the side wall of the dust filter tank 2. The outer end of the insert tube 8 is connected to an air pump 7.

[0034] A hollow bracket is installed near the bottom of the dust filter tank 2, into which a centrifugal tank 9 is embedded, allowing the centrifugal tank 9 to be suspended within the dust filter tank 2. A gap exists between the outer wall of the centrifugal tank 9 and the inner wall of the dust filter tank 2. A centrifugal fan 10 is rotatably mounted at the top of the centrifugal tank 9, driven by a motor fixed to the bottom of the centrifugal tank 9. An air pipe is connected to the side wall of the centrifugal tank 9. After passing through the side wall of the dust filter tank 2, the air pipe connects to an annular air collecting pipe 12. The air collecting pipe 12 is concentric with the welding end of the welding machine 4, and the inner wall of the air collecting pipe 12 has multiple air collection holes arranged in a circular array.

[0035] During the welding process, the air pump 7 and motor are started. The motor drives the centrifugal fan 10 to generate suction. Fumes generated by welding are drawn into the gas collection pipe 12 through the gas collection holes and then into the centrifugal tank 9 via the delivery pipe 11. The motor then drives the centrifugal fan 10, stirring the smoke, causing it to rise in a spiraling motion, generating a centrifugal vortex. Under the centrifugal force, large and heavier particles are ejected and adhere to the inner wall of the dust filter 2, thereby filtering dust. The gas continues to rise and is discharged through the exhaust pipe 5. When the air pump 7 is started, it injects gas into the dust filter 2. Because the cannula 8 is inserted tangentially into the dust filter 2 and is positioned downwardly, the gas injected by the air pump 7 into the dust filter 2 also forms a downward vortex, pushing dust adhering to the inner wall of the dust filter 2 toward the dust discharge pipe 6 below, achieving dust removal. A gap exists between the centrifugal tank 9 and the inner wall of the dust filter 2, providing space for the rising vortex of smoke to escape and for the descending vortex of dust to sink.

[0036] This device draws smoke into a centrifugal tank 9, where centrifugal action creates an upward vortex. Dust in the smoke is centrifugally ejected and adheres to the inner wall of the dust filter tank 2, separating the smoke from the powder particles. Simultaneously, an air pump 7 injects gas into the inner cover of the dust filter tank 2, creating a downward vortex. This blows the dust adsorbed on the inner wall of the dust filter tank 2 downward and outward, achieving the purpose of dust removal. The discharged dust is collected in a collection box.

[0037] In a further embodiment of this solution, the connection point between the conveying pipe 11 and the dust filter tank 2 is located below the centrifugal fan 10. This ensures that the flue gas can form a vortex after passing through the centrifugal tank 9.

[0038] In a further embodiment of this solution, to prevent the gas collection pipe 12 from interfering with the welding reel during maintenance and disassembly, it is mounted on the welding end of the welding machine 4, allowing it to be raised and lowered as the welding end of the welding machine 4 is raised and lowered. Specifically, a mounting sleeve 13 is fixedly mounted on the upper end of the gas collection pipe 12. Mounting sleeve 13 has internal threads, while the welding end of the welding machine 4 has external threads. Mounting sleeve 13 screws onto the welding end of the welding machine 4, thereby connecting the gas collection pipe 12 to the welding end of the welding machine 4. In this embodiment, the delivery pipe 11 is a flexible hose that does not interfere with the raising and lowering of the gas collection pipe 12.

[0039] In a further embodiment of this solution, installing the mounting sleeve 13 requires first separating the ends of the delivery pipe 11 from the gas collecting pipe 12. After the gas collecting pipe 12 is installed, the delivery pipe 11 and the gas collecting pipe 12 must be connected (both ends are provided with connectors), which is a cumbersome operation. Therefore, in this embodiment, a sleeve is rotatably mounted on the outer wall of the mounting sleeve 13, and the gas collecting pipe 12 is mounted on the sleeve. This allows tightening the mounting sleeve 13 without affecting the condition of the gas collecting pipe 12, eliminating the need to disassemble the delivery pipe 11 and improving assembly and disassembly efficiency.

[0040] In a further embodiment of this solution, another connection mechanism between the mounting sleeve 13 and the welding end of the welding machine 4 is provided: the mounting sleeve 13 has a through hole without internal threads. During installation, the mounting sleeve 13 is inserted into the welding end of the welding machine 4. A nut is screwed onto the welding end of the welding machine 4, and the nut abuts against the mounting sleeve 13, thereby securing the gas collecting pipe 12. This eliminates the need for additional components such as a sleeve, making it more convenient.

[0041] In a further embodiment of this solution, dust filters 14 are installed at the air inlet of the air pump 7 and at the end of the exhaust pipe 5. An activated carbon cartridge 15 is installed above the dust filter 14 on the exhaust pipe 5. The dust filter 14 at the air inlet of the air pump 7 prevents external dust from entering the dust filter canister 2 through the air pump 7, thereby enhancing dust filtration. The dust filter 14 on the exhaust pipe 5 removes fine dust that cannot be centrifuged, thereby improving dust filtration efficiency. The activated carbon cartridge 15 on the exhaust pipe 5 is used to absorb pungent odors.

[0042] In a further embodiment of the present invention, a closable window is provided on the side wall of the dust filter tank 2, which makes it easy to observe the internal dust filtering status and to clean the inner wall of the dust filter tank 2, the centrifugal tank 9 and other equipment.

[0043] The above is only a preferred specific implementation method of the present application, but the scope of protection of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and application concept of the present application within the technical scope disclosed in the present application, and they should be covered by the scope of protection of the present application.

[0044] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0045] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A seamless cored wire welding fume purification device, characterized in that: The invention comprises a dust filter tank (2) suspended on the side of a welding machine (4), wherein the upper and lower ends of the dust filter tank (2) are respectively provided with an exhaust pipe (5) and a dust exhaust pipe (6), a centrifugal tank (9) is suspended near the bottom end of the dust filter tank (2), a centrifugal fan (10) is rotatably installed at the upper end of the centrifugal tank (9), the side wall of the centrifugal tank (9) is connected to an annular gas collecting pipe (12) located below the welding end of the welding machine (4) through a conveying pipe (11), and a plurality of gas collecting holes are arranged in an annular array on the inner wall of the gas collecting pipe (12); an inclined insert pipe (8) is inserted into the upper side wall of the dust filter tank (2), the insert pipe (8) is tangent to the side wall of the dust filter tank (2), and the insert pipe (8) is connected to an air pump (7).

2. A seamless cored wire welding fume purification device according to claim 1, characterized in that: The point where the delivery pipe (11) communicates with the dust filter tank (2) is located below the centrifugal fan (10).

3. The seamless cored wire welding fume purification device according to claim 1, characterized in that: A mounting sleeve (13) is fixedly mounted on the upper end of the gas collecting pipe (12), and the mounting sleeve (13) is screwed onto the welding end of the welding machine (4); the delivery pipe (11) is a hose.

4. A seamless cored wire welding fume purification device according to claim 3, characterized in that: A sleeve is rotatably mounted on the outer wall of the mounting sleeve (13), and the gas collecting pipe (12) is mounted on the sleeve.

5. The seamless cored wire welding fume purification device according to claim 3, characterized in that: The mounting sleeve (13) is inserted into the welding end of the welding machine (4), and a nut is screwed onto the welding end of the welding machine (4), and the nut abuts against the mounting sleeve (13).

6. The seamless cored wire welding fume purification device according to claim 1, characterized in that: The air inlet of the air pump (7) and the end of the exhaust pipe (5) are both equipped with dust filter boxes (14), and an activated carbon box (15) is installed above the dust filter box (14) on the exhaust pipe (5).

7. The seamless cored wire welding fume purification device according to claim 1, characterized in that: The side wall of the dust filter tank (2) is provided with an openable and closable window.

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