Dust removal device for factory building

Abstract

The utility model discloses a dust removal device for a plant, which belongs to the field of dust removal equipment and comprises a welding fume dust remover and an air suction arm, the welding fume dust remover comprises a welding fume dust removal box, a fan is fixedly mounted in the welding fume dust removal box, a fume inlet pipe is fixedly mounted at an air inlet of the fan, and one end of the fume inlet pipe is fixedly connected with one end of the air suction arm; according to the dust removal device for the factory building, by arranging the compressed gas storage tank and the back flushing pipe, when the first filter screen or the second filter screen is blocked, the first filter screen or the second filter screen can be subjected to back flushing by utilizing flowing airflow of high-pressure gas, so that blocked dust particles can be separated from meshes of the first filter screen or the second filter screen; in this way, when the first filter screen or the second filter screen is detached and cleaned subsequently, adhered dust can be easily cleaned away, so that the cleaning process of the first filter screen or the second filter screen is simple and convenient, and time and labor are saved.

Description

Technical Field

[0001] This utility model belongs to the technical field of dust removal equipment, specifically relating to a dust removal device for factory buildings. Background Art

[0002] Welding fumes, as the name suggests, refer to the smoke and dust generated during the welding process. Since welding fumes contain a large number of dust particles, direct emission into the air will cause pollution. Therefore, welding workshops usually install dust removal devices inside the workshop to treat welding fumes.

[0003] However, most existing welding fume dust removal devices use filters to filter dust from the flue gas. After long-term use, the mesh of the filters becomes clogged. Even when the filters are disassembled and cleaned, it is difficult to quickly remove the dust particles clogging the mesh. Often, it is necessary to repeatedly brush the filters, which makes the cleaning process time-consuming and laborious. Therefore, we propose a dust removal device for factories. Utility Model Content

[0004] The purpose of this invention is to provide a dust removal device for factory buildings to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dust removal device for a factory, comprising a welding fume dust collector and an air suction arm, wherein the welding fume dust collector includes a welding fume dust collection box, a fan is fixedly installed inside the welding fume dust collection box, a smoke inlet pipe is fixedly installed at the air inlet of the fan, one end of the smoke inlet pipe is fixedly connected to one end of the air suction arm, a smoke hood is fixedly connected to the other end of the air suction arm, and a smoke conveying pipe is fixedly installed at the air outlet of the fan;

[0006] A filter box is fixedly connected to one side of the inner cavity of the welding fume dust removal box. A sealing cover is fixedly installed on the top of the filter box. Filter screen No. 1 and filter screen No. 2 are fixedly installed inside the filter box from top to bottom. An exhaust pipe is fixedly sleeved on one side of the bottom of the filter box. A compressed gas storage tank is placed at the bottom of the inner cavity of the welding fume dust removal box. One side of the compressed gas storage tank is fixedly connected to the bottom of the filter box through a backflush pipe.

[0007] In a preferred embodiment, the suction arm is provided with an installation assembly, which includes a fixing plate. The fixing plate is fixedly sleeved on the outside of the suction arm, and the top of the fixing plate is fixedly connected to the mounting plate. The mounting plate is threaded with mounting screws.

[0008] In a preferred embodiment, the front of the welding fume dust collector is movably connected to a door via a hinge, and sound-absorbing cotton is fixedly connected to the inside of the welding fume dust collector.

[0009] In a preferred embodiment, the air inlet of the fan is located on the front of the fan, the number of air outlets of the fan is two, and the smoke conveying pipe is a flexible hose.

[0010] In a preferred embodiment, the sealing cover and the end of the smoke conveying pipe are fixedly sleeved together, and the sealing cover is movably sleeved on the outside of the top of the filter box. The sealing cover and the filter box are fixedly connected by bolts, and the diameter of the mesh on the surface of the first filter screen is greater than the diameter of the mesh on the surface of the second filter screen.

[0011] In a preferred embodiment, a smoke exhaust valve is fixedly installed on the outside of the smoke exhaust pipe, and a backflush valve is fixedly installed on the outside of the backflush pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This dust removal device for factories, by setting up a compressed gas storage tank and a backflush pipe, can use a high-pressure gas flow to backflush the No. 1 or No. 2 filter screen when it becomes clogged. This allows the clogged dust particles to detach from the mesh of the No. 1 or No. 2 filter screen, making it easy to remove the adhering dust during subsequent disassembly and cleaning. This makes the cleaning process of the No. 1 or No. 2 filter screen simple, convenient, time-saving, and labor-saving.

[0014] This dust removal device for factory buildings, by setting up fans with two air outlets, can increase the air pressure of the fans and make the suction at the fume hood strong. This can accelerate the flow of welding fumes, thus facilitating the rapid dust removal of welding fumes. In addition, by setting up installation components, the suction arm can be easily fixed inside the factory building, thus bringing convenience to the use of this dust removal device. Attached Figure Description

[0015] Figure 1 This is a front view of the structure of this utility model;

[0016] Figure 2 This is a partial cross-sectional view of the structure of this utility model;

[0017] Figure 3 This is a top view of the first filter screen in the structure of this utility model.

[0018] In the diagram: 1. Sound-absorbing cotton; 2. Suction arm; 3. Welding fume dust removal box; 4. Fan; 5. Smoke inlet pipe; 6. Smoke hood; 7. Mounting components; 71. Fixing plate; 72. Mounting plate; 73. Mounting screws; 8. Smoke conveying pipe; 9. Filter box; 10. Sealing cover; 11. No. 1 filter screen; 12. No. 2 filter screen; 13. Smoke exhaust pipe; 14. Compressed gas storage tank; 15. Backflush pipe. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the embodiments.

[0020] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0021] See also Figure 1 and Figure 2 This utility model provides a dust removal device for a factory, including a welding fume dust collector and a suction arm 2. A fume hood 6 is fixedly connected to the end of the suction arm 2. An installation component 7 is provided on the outside of the suction arm 2. The installation component 7 includes a fixing plate 71, which is fixedly sleeved on the outside of the suction arm 2. An installation plate 72 is fixedly connected to the top of the fixing plate 71. An installation screw 73 is threaded inside the installation plate 72.

[0022] In this embodiment, when it is necessary to install the suction arm 2, the fume hood 6 can be aligned with the welding equipment inside the welding workshop first, and then the suction arm 2 can be pulled as needed to cause the suction arm 2 to stretch and deform. After the length of the suction arm 2 is adjusted, the mounting plate 72 is aligned with the wall of the welding workshop, and the mounting plate 72 is fixed to the wall of the welding workshop using the mounting screws 73, so as to facilitate the installation and fixing of the suction arm 2 and the fume hood 6.

[0023] See also Figure 2 The welding fume dust collector includes a welding fume dust collection box 3. The front of the welding fume dust collection box 3 is movably connected to a door via a hinge. Sound-absorbing cotton 1 is fixedly connected to the inside of the welding fume dust collection box 3. A fan 4 is fixedly installed inside the welding fume dust collection box 3. The air inlet of the fan 4 is located on the front of the fan 4. The fan 4 has two air outlets. A smoke inlet pipe 5 is fixedly installed at the air inlet of the fan 4. One end of the smoke inlet pipe 5 is fixedly connected to one end of the suction arm 2. A smoke conveying pipe 8, which is a flexible hose, is fixedly installed at the air outlet of the fan 4.

[0024] In this embodiment, when the fan 4 is started, a negative pressure is generated inside the suction arm 2, and the fume hood 6 will generate a suction force due to the negative pressure. The welding fumes generated during welding will be sucked in from the fume hood 6 due to the suction force, and then flow into the fume inlet pipe 5 along the suction arm 2. The welding fumes in the fume inlet pipe 5 will enter from the air inlet of the fan 4, and then flow out from the air outlet of the fan 4, and flow into the interior of the filter box 9 along the fume delivery pipe 8. Since the fan 4 is provided with two air outlets, the air pressure of the fan 4 can be increased, which makes the suction force at the fume hood 6 strong. This can accelerate the flow speed of welding fumes, thereby facilitating the rapid dust removal treatment of welding fumes.

[0025] Please see Figure 2 and Figure 3 A filter box 9 is fixedly connected to one side of the inner cavity of the welding fume dust removal box 3. A sealing cover 10 is fixedly installed on the top of the filter box 9. The sealing cover 10 and the end of the smoke conveying pipe 8 are fixedly connected. The sealing cover 10 is movably sleeved on the outside of the top of the filter box 9. The sealing cover 10 and the filter box 9 are fixedly connected by bolts. A first filter screen 11 and a second filter screen 12 are fixedly installed inside the filter box 9 from top to bottom. The diameter of the mesh on the surface of the first filter screen 11 is larger than the diameter of the mesh on the surface of the second filter screen 12. A smoke exhaust pipe 13 is fixedly sleeved on one side of the bottom of the filter box 9. A smoke exhaust valve is fixedly installed on the outside of the smoke exhaust pipe 13.

[0026] In this embodiment, when welding fumes enter the interior of the filter box 9, the fumes will pass through the first filter screen 11 and the second filter screen 12 in sequence under pressure, which can effectively filter the dust mixed in the welding fumes. At the same time, the exhaust valve is opened so that the dust-removed fumes can be discharged through the exhaust pipe 13.

[0027] Please see Figure 2 A compressed gas storage tank 14 is placed at the bottom of the inner cavity of the welding fume dust removal box 3. One side of the compressed gas storage tank 14 is fixedly connected to the bottom of the filter box 9 through a backflush pipe 15. A backflush valve is fixedly installed on the outside of the backflush pipe 15.

[0028] In this embodiment, when the mesh of filter screen 11 and filter screen 12 becomes clogged, the fan 4 and the exhaust valve are turned off, and the backflush valve is opened, allowing the compressed gas inside the compressed gas storage tank 14 to flow quickly into the filter box 9 through the backflush pipe 15. At this time, the compressed gas will impact filter screen 11 and filter screen 12 in the opposite direction, causing the dust particles clogged inside the mesh of filter screen 11 and filter screen 12 to be blown out. Then the backflush valve is closed, the sealing cover 10 is opened, and filter screen 11 and filter screen 12 are disassembled from the inside of the filter box 9 in sequence, so as to facilitate the cleaning of dust on the surface of filter screen 11 and filter screen 12.

[0029] In the above scheme, it should be noted that: the dust removal device of this application is used to remove dust from welding fumes in the welding workshop, and the suction arm 2 is fixed inside the workshop by the mounting component 7. At the same time, the fan 4 in this application is provided with two air outlets. Compared with the traditional fan 4 with one air outlet, the fan 4 with two air outlets can increase the air pressure, thereby making the suction stronger.

[0030] The working principle and usage process of this utility model are as follows: First, align the fume hood 6 with the welding equipment inside the welding workshop. Then, pull the suction arm 2 as needed to stretch and deform the suction arm 2. After the length of the suction arm 2 is adjusted, align the mounting plate 72 with the wall of the welding workshop and fix the mounting plate 72 to the wall of the welding workshop using the mounting screws 73, so as to facilitate the installation and fixing of the suction arm 2 and the fume hood 6.

[0031] Next, start the fan 4 to create a negative pressure inside the suction arm 2. The fume hood 6 will generate suction due to the negative pressure. The welding fumes generated during welding will be sucked in from the fume hood 6 due to the suction, and then flow into the fume inlet pipe 5 along the suction arm 2. The welding fumes in the fume inlet pipe 5 will enter from the air inlet of the fan 4, and then flow out from the air outlet of the fan 4, and flow into the interior of the filter box 9 along the fume delivery pipe 8.

[0032] Then, the welding fumes will pass through filter screen 11 and filter screen 12 in sequence under pressure, which can effectively filter the dust mixed in the welding fumes. At the same time, the exhaust valve is opened so that the dust-removed fumes can be discharged through the exhaust pipe 13.

[0033] Finally, when the mesh of filter screen 11 and filter screen 12 becomes clogged, turn off the fan 4 and the exhaust valve, and open the backflush valve. This allows the compressed gas inside the compressed gas storage tank 14 to flow quickly into the filter box 9 through the backflush pipe 15. At this time, the compressed gas will impact filter screen 11 and filter screen 12 in reverse, causing the dust particles clogged inside the mesh of filter screen 11 and filter screen 12 to be blown out. Then, close the backflush valve, open the sealing cover 10, and remove filter screen 11 and filter screen 12 from the filter box 9 in sequence, making it easier to clean the dust on the surface of filter screen 11 and filter screen 12.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dust removal device for a factory building, comprising a welding fume dust collector and a suction arm (2), characterized in that: The welding smoke dust collector comprises a welding smoke dust removal box (3), a fan (4) is fixedly installed inside the welding smoke dust removal box (3), a smoke inlet pipe (5) is fixedly installed at the air inlet of the fan (4), one end of the smoke inlet pipe (5) is fixedly connected to one end of an air suction arm (2), the other end of the air suction arm (2) is fixedly connected to a smoke hood (6), and a smoke conveying pipe (8) is fixedly installed at the air outlet of the fan (4); A filter box (9) is fixedly connected to one side of the inner cavity of the welding smoke dust removal box (3), a sealing cover (10) is fixedly installed on the top of the filter box (9), a first filter screen (11) and a second filter screen (12) are fixedly installed inside the filter box (9) from top to bottom, a smoke exhaust pipe (13) is fixedly sleeved on one side of the bottom of the filter box (9), and a compressed gas storage tank (14) is placed at the bottom of the inner cavity of the welding smoke dust removal box (3), and one side of the compressed gas storage tank (14) is fixedly connected to the bottom of the filter box (9) via a backflush pipe (15).

2. A dust removal device for a factory building according to claim 1, characterized in that: The outside of the suction arm (2) is provided with a mounting assembly (7), the mounting assembly (7) comprising a fixing plate (71), the fixing plate (71) being fixedly sleeved on the outside of the suction arm (2), and a mounting plate (72) being fixedly connected to the top of the fixing plate (71), and mounting screws (73) being sleeved on the internal threads of the mounting plate (72).

3. A dust removal device for a factory building according to claim 1, characterized in that: The front side of the welding smoke dust removal box (3) is movably connected to a box door via a hinge, and the inner side of the welding smoke dust removal box (3) is fixedly connected to a sound-absorbing cotton (1).

4. A dust removal device for a factory building according to claim 1, characterized in that: The air inlet of the fan (4) is opened on the front side of the fan (4), the number of air outlets of the fan (4) is two, and the smoke conveying pipe (8) is a hose.

5. The dust removal device for a factory building according to claim 1, characterized in that: The sealing cover (10) and the end of the smoke conveying pipe (8) are fixedly sleeved, and the sealing cover (10) is movably sleeved on the outside of the top end of the filter box (9). The sealing cover (10) and the filter box (9) are fixedly connected by bolts, and the diameter of the surface mesh of the first filter screen (11) is greater than the diameter of the surface mesh of the second filter screen (12).

6. A dust removal device for a factory building according to claim 1, characterized in that: A smoke exhaust valve is fixedly installed on the outside of the smoke exhaust pipe (13), and a back-blowing valve is fixedly installed on the outside of the back-blowing pipe (15).

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