Laser cutting fume filtration device

Abstract

The utility model discloses a laser cutting smoke dust filter device, including filter dust case and a plurality of filter, the filter dust case has the purification chamber of lower end opening and dust collecting plate, the dust collecting plate can be pull type setting at the lower end opening department of purification chamber, be provided with the baffle in the purification chamber, the baffle divides into first purification chamber, air passage and second purification chamber, is provided with a plurality of air inlets of interdistance on the baffle and is communicated with air passage, still be provided with the air intake and the gas outlet on the filter dust case, the air intake is communicated with air passage, the gas outlet is set up above the filter, like this, makes the smoke dust after entering air passage through the air intake, and through the multiple air inlets on the baffle even shunt to first, second purification chamber, makes the air flow of each filter bearing balanced, avoids the local overload and influences use.

Description

Technical Field

[0001] This utility model relates to the field of dust treatment devices, and in particular to a laser cutting dust filtration device. Background Technology

[0002] Laser cutting technology is widely used in the fields of materials such as metals, plastics, and textiles, and has the advantages of fast, clean, and precise cutting. In the field of laser cutting processing, when a high-energy laser beam interacts with materials such as metals and acrylics, the materials will generate a large amount of complex dust due to reactions such as pyrolysis and oxidation. This dust contains solid particles with a particle size range of 0.1μm-100μm, as well as harmful gaseous pollutants such as volatile organic compounds and nitrogen oxides. If this untreated dust is directly emitted, the particulate matter emission concentration will exceed the prescribed limit.

[0003] Early devices often used a single filter layer (such as ordinary non-woven fabric or metal mesh) to directly intercept particulate matter. However, they did not design a graded purification process for pollutants of different particle sizes, and the filtration and purification of particulate matter of different sizes was not thorough enough, making it difficult to meet emission and environmental protection requirements, and the efficiency was low.

[0004] Later, a filtration device appeared on the market that used multiple filtration structures to achieve graded filtration. However, it only set a single air inlet on one side, which caused a large amount of smoke and dust to flow into the filtration structure near the air inlet, while other filtration structures that were relatively far from the air inlet had less airflow. This caused the filtration structure near the air inlet to bear too high a load and become clogged quickly, while the other filtration layers did not play their full role.

[0005] Therefore, a new technical solution needs to be researched to address the above problems. Utility Model Content

[0006] In view of this, the present invention addresses the deficiencies of the existing technology and its main purpose is to provide a laser cutting fume filtration device. The device divides the purification chamber into a first purification chamber, an air duct, and a second purification chamber through a partition. In this way, after the fume enters the air duct through the air inlet, it is evenly distributed to the first and second purification chambers through multiple air inlets on the partition, so that the airflow under each filter is balanced and local overload is avoided, which would affect the use.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A laser cutting fume filtration device includes a dust collection box and several filters for preliminary purification of exhaust gas by filtering out particles; the dust collection box has a purification chamber with an opening at the lower end and a dust collection plate, the dust collection plate being removable and installed at the lower opening of the purification chamber.

[0009] The purification chamber is provided with a partition, which divides the purification chamber into a first purification chamber, an air duct, and a second purification chamber. A plurality of filters are spaced apart in the first purification chamber and the second purification chamber. A plurality of air inlets connected to the air duct are spaced apart on the partition.

[0010] The dust filter box is also equipped with an air inlet and an air outlet. The air inlet is connected to the air duct, and the air outlet is located above the filter.

[0011] As a preferred embodiment, the dust filter box includes several side plates and a top plate, the side plates are connected to each other, and the top plate covers the side plates to form a purification chamber with an open end.

[0012] As a preferred embodiment, the plurality of side plates are respectively a front side plate, a rear side plate, a left side plate, and a right side plate. The lower ends of the front side plate, the left side plate, and the right side plate are respectively provided with a front placement position, a left placement position, and a right placement position. When the dust collection plate is located at the lower opening of the purification chamber, the front, left, and right sides of the dust collection plate abut against the corresponding front placement position, left placement position, and right placement position.

[0013] As a preferred embodiment, the dust collection plate is provided with a pull-out part on the side away from the air intake, and the lower end of the rear side plate is bent upward at least partially to form a clearance opening. When the dust collection plate is located at the lower opening of the purification chamber, the pull-out part is located at the clearance opening.

[0014] As a preferred embodiment, the partition is welded into the cleanroom.

[0015] As a preferred embodiment, the lower end of the front panel extends rearward with a first extended edge, forming a front mounting position between the first extended edge and the lower end of the front panel; the lower end of the left panel extends rightward with a second extended edge, forming a left mounting position between the second extended edge and the lower end of the left panel; and the lower end of the right panel extends leftward with a third extended edge, forming a right mounting position between the third extended edge and the lower end of the right panel.

[0016] As a preferred embodiment, the partition includes a first partition, a second partition, and a third partition arranged in opposition to each other, with the first partition, the second partition, and the third partition forming an air passage, and the plurality of air inlets respectively disposed on the first partition and the second partition.

[0017] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution, it mainly divides the purification chamber into a first purification chamber, an air duct, and a second purification chamber by a partition. In this way, after the smoke and dust enter the air duct through the air inlet, they are evenly distributed to the first and second purification chambers through multiple air inlets on the partition, so that the air flow rate of each filter is balanced, avoiding local overload, thereby filtering the larger particles contained in the smoke and dust to the dust collection plate.

[0018] Next, the filter spacing in the first and second purification chambers is set to allow for gradient interception of particles of different sizes;

[0019] The spacing of the air inlets on the partition, together with the air duct's guiding effect, ensures that the dust enters the purification chamber at a uniform speed, reducing the impact and wear of the filter on the filter by the high-speed airflow. At the same time, the design of the air outlet above the filter ensures that the purified gas is discharged quickly, avoiding secondary dust.

[0020] Furthermore, the dust collection plate adopts a pull-out design, located at the lower opening of the purification chamber. It can be directly pulled out to clean the accumulated dust (such as metal shavings and cutting residue) without stopping the machine, avoiding the cumbersome operation of disassembling the entire machine required by the traditional fixed dust collection structure, thus improving efficiency.

[0021] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0022] Figure 1 This is a perspective view of an embodiment of the present utility model;

[0023] Figure 2 This is a cross-sectional view of an embodiment of the present utility model;

[0024] Figure 3 This is an exploded view of an embodiment of the present utility model;

[0025] Figure 4 This is a structural diagram of the dust filter box according to an embodiment of the present utility model;

[0026] Figure 5 This is a structural diagram of the dust filter box and partition according to an embodiment of this utility model.

[0027] Explanation of reference numerals in the attached diagram:

[0028] 10. Dust filter box 11. Purification chamber

[0029] 12. Partition plate 13. Air inlet

[0030] 14. Air duct 15. Air intake

[0031] 16. Air outlet 17. Dust collection plate

[0032] 111. First purification chamber; 112. Second purification chamber

[0033] 121. First partition 122. Second partition

[0034] 123. Third partition

[0035] 101. Front side panel; 102. Rear side panel

[0036] 103. Left side panel; 104. Right side panel

[0037] 105. Front placement position; 106. Left placement position

[0038] 107. Right placement position 1011. First extended side

[0039] 1031, Second extension side; 1041, Third extension side

[0040] 1021, clearance opening 171, pull-out section

[0041] 20. Filter. Detailed Implementation

[0042] Please refer to Figures 1 to 5 As shown, it illustrates the specific structure of an embodiment of the present invention.

[0043] In the description of this utility model, it should be noted that the directional terms such as "up", "down", "front", "back", "left", and "right" indicate the orientation and positional relationship based on the accompanying drawings or the orientation or positional relationship shown when wearing and using the device normally. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0044] A laser cutting fume filtration device includes a dust collection box 10 and several filters 20.

[0045] The plurality of filters 20 are used to perform preliminary purification of exhaust gas by filtering particles; the dust collection box 10 has a purification chamber 11 with an opening at the lower end and a dust collection plate 17, the dust collection plate 17 being removable and disposed at the lower opening of the purification chamber 11.

[0046] A partition 12 is provided inside the purification chamber 11, dividing the purification chamber 11 into a first purification chamber 111, an air duct 14, and a second purification chamber 112. A plurality of filters 20 are spaced apart within the first purification chamber 111 and the second purification chamber 112. The partition 12 is provided with a plurality of air inlets 13 spaced apart and connected to the air duct 14. Preferably, the partition 12 is welded to the purification chamber 11. The filters can be cyclone dust collectors. When smoke and dust enter the air duct through the suction port and are diverted to the cyclone dust collector through the air inlets on the partition, the airflow changes from linear motion to circular motion. Due to the flow restriction caused by the outer cylindrical cover and the cylindrical wall, the airflow is forced to rotate downwards. During the rotation, a large centrifugal force is generated. Under the action of centrifugal force, dust particles are thrown towards the outer cylindrical wall. After losing inertia, they fall into the dust collection plate under the action of gravity and are separated from the gas.

[0047] Preferably, the partition 12 includes a first partition 121, a second partition 122 and a third partition 123 arranged in opposite directions, and the first partition 121, the second partition 122 and the third partition 123 form an air passage 14, and the plurality of air inlets 13 are respectively disposed on the first partition 121 and the second partition 122.

[0048] The dust filter box 10 is also provided with an air inlet 15 and an air outlet 16. The air inlet 15 is connected to the air duct 14, and the air outlet 16 is provided above the filter 20.

[0049] Preferably, the dust filter box 10 includes a plurality of side plates and a top plate, the plurality of side plates being connected to each other, and the top plate covering the side plates to form a purification chamber 11 with an open end.

[0050] Preferably, the plurality of side plates are a front side plate 101, a rear side plate 102, a left side plate 103, and a right side plate 104. The lower ends of the front side plate 101, the left side plate 103, and the right side plate 104 are respectively provided with a front mounting position 105, a left mounting position 106, and a right mounting position 107. When the dust collection plate 17 is located at the lower opening of the purification chamber 11, the front, left, and right sides of the dust collection plate 17 abut against the corresponding front mounting position 105, left mounting position 106, and right mounting position 107.

[0051] Preferably, the lower end of the front side panel 101 extends rearward with a first extension edge 1011, forming a front mounting position 105 between the first extension edge 1011 and the lower end of the front side panel 101; the lower end of the left side panel 103 extends rightward with a second extension edge 1031, forming a left mounting position 106 between the second extension edge 1031 and the lower end of the left side panel 103; the lower end of the right side panel 104 extends leftward with a third extension edge 1041, forming a right mounting position 107 between the third extension edge 1041 and the lower end of the right side panel 104.

[0052] Preferably, the dust collection plate 17 is provided with a pull-out part 171 on the side away from the air intake 15, and the lower end of the rear side plate 102 is bent upward at least partially to form an avoidance opening 1021. When the dust collection plate 17 is located at the lower opening of the purification chamber 11, the pull-out part 171 is located at the avoidance opening 1021.

[0053] The key design feature of this utility model is that it mainly divides the purification chamber into a first purification chamber, an air duct, and a second purification chamber through a partition. In this way, after the smoke and dust enter the air duct through the air inlet, they are evenly distributed to the first and second purification chambers through multiple air inlets on the partition, so that the airflow under each filter is balanced, avoiding local overload, thereby filtering the larger particles contained in the smoke and dust to the dust collection plate.

[0054] Next, the filter spacing in the first and second purification chambers is set to allow for gradient interception of particles of different sizes;

[0055] The spacing of the air inlets on the partition, together with the air duct's guiding effect, ensures that the dust enters the purification chamber at a uniform speed, reducing the impact and wear of the filter on the filter by the high-speed airflow. At the same time, the design of the air outlet above the filter ensures that the purified gas is discharged quickly, avoiding secondary dust.

[0056] Furthermore, the dust collection plate adopts a pull-out design, located at the lower opening of the purification chamber. It can be directly pulled out to clean the accumulated dust (such as metal shavings and cutting residue) without stopping the machine, avoiding the cumbersome operation of disassembling the entire machine required by the traditional fixed dust collection structure, thus improving efficiency.

[0057] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A laser cutting fume filtration device, characterized in that: It includes a dust collection box and several filters for preliminary purification of exhaust gas by filtering out particles; the dust collection box has a purification chamber with an opening at the lower end and a dust collection plate, the dust collection plate being removable and installed at the lower opening of the purification chamber. The purification chamber is provided with a partition, which divides the purification chamber into a first purification chamber, an air duct, and a second purification chamber. A plurality of filters are spaced apart in the first purification chamber and the second purification chamber. A plurality of air inlets connected to the air duct are spaced apart on the partition. The dust filter box is also equipped with an air inlet and an air outlet. The air inlet is connected to the air duct, and the air outlet is located above the filter.

2. The laser cutting fume filtration device according to claim 1, characterized in that: The dust filter box includes several side plates and a top plate. The side plates are connected to each other, and the top plate covers the side plates to form a purification chamber with an open end.

3. The laser cutting fume filtration device according to claim 2, characterized in that: The side plates are a front side plate, a rear side plate, a left side plate, and a right side plate. The lower ends of the front side plate, the left side plate, and the right side plate are respectively provided with a front placement position, a left placement position, and a right placement position. When the dust collection plate is located at the lower opening of the purification chamber, the front, left, and right sides of the dust collection plate abut against the corresponding front placement position, left placement position, and right placement position.

4. The laser cutting fume filtration device according to claim 3, characterized in that: The dust collection plate has a pull-out section on the side away from the air intake. The lower end of the rear side plate is bent upwards at least partially to form a clearance opening. When the dust collection plate is located at the lower opening of the purification chamber, the pull-out section is located at the clearance opening.

5. The laser cutting fume filtration device according to claim 1, characterized in that: The partition is welded into the purification chamber.

6. The laser cutting fume filtration device according to claim 3, characterized in that: The lower end of the front panel extends rearward with a first extended edge, forming a front mounting position between the first extended edge and the lower end of the front panel; the lower end of the left panel extends rightward with a second extended edge, forming a left mounting position between the second extended edge and the lower end of the left panel; the lower end of the right panel extends leftward with a third extended edge, forming a right mounting position between the third extended edge and the lower end of the right panel.

7. The laser cutting fume filtration device according to claim 2, characterized in that: The partition includes a first partition, a second partition, and a third partition arranged in opposite directions. An air passage is formed between the first partition, the second partition, and the third partition. The plurality of air inlets are respectively disposed on the first partition and the second partition.

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