Dust removal filter device for polishing

CN224927723UActive Publication Date: 2026-11-03WENZHOU FUHUA SAFETY EQUIP CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202621367891.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2026-09-01
Publication Date
2026-11-03
Estimated Expiration
2036-09-01

AI Technical Summary

Technical Problem

In existing technologies, dust generated during the grinding process is easily splashed and colliding, making it difficult for the dust to be attracted by negative pressure, resulting in incomplete dust removal.

Method used

The system employs a combination of a perforated tabletop and an inclined water flow plate. Dust is drawn through the perforations by negative pressure and then adhered to by the water flow on the water flow plate, guiding it into the filtration assembly. Combined with comb-shaped baffles and a wet filter, multi-stage filtration is achieved, enhancing dust adhesion and collection.

Benefits of technology

It effectively reduces dust splashing and ejection, improves the dust removal and purification effect, ensures that dust is completely collected, and prevents dust escape.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224927723U_ABST
    Figure CN224927723U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of polishing dust removal filtering devices, including polishing table, filtering assembly and negative pressure component;The polishing table is provided with table top, the table top is provided with mesh, the lower portion of the table top is provided with water flow plate, the water flow plate is inclinedly arranged and keeps continuous water flow;The negative pressure component generates negative pressure, dust on the table top is attracted through the mesh, the dust reaches the water flow plate after passing through the mesh, adheres to the water flow plate and is guided downward along water flow into the filtering assembly, the filtering assembly filters the dust. Dust splashed by collision in polishing process can be reduced, and the purification effect of dust removal is effectively improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the technical field of grinding and dust removal equipment, specifically a grinding and dust removal filtration device. Background Technology

[0002] Grinding equipment is frequently used in machining. Currently, the most common filtration method in grinding equipment is negative pressure wet filtration. This typically involves using a negative pressure generator to draw air from the worktable, attracting the dust generated during grinding and forcing it into an internal filter assembly for filtration. After filtration, clean air is discharged. However, the current method of directly attracting dust into the internal wet filter assembly using negative pressure is problematic. Since dust particles can easily scatter, such as from impacts on the worktable, it's difficult for the negative pressure to effectively attract the dust. Therefore, optimization is needed. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a grinding dust removal and filtration device that can reduce the dust splashed during the grinding process and effectively improve the dust removal and purification effect.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A grinding dust removal and filtration device includes a grinding table, a filter assembly, and a negative pressure assembly; The polishing table is provided with a table surface, the table surface is provided with a mesh, and a water flow plate is provided below the table surface. The water flow plate is inclined and maintains a continuous water flow. The negative pressure component generates negative pressure, which attracts dust from the table surface through the mesh. The dust passes through the mesh and reaches the water flow plate, where it adheres to the water flow plate and is guided downwards by the water flow into the filter component, which filters the dust.

[0005] As a further improvement of this utility model, baffles are provided on both sides of the tabletop.

[0006] As a further improvement of this utility model, a ventilation plate is provided at the end of the tabletop, and the negative pressure generated by the negative pressure component attracts dust on the tabletop through the ventilation plate.

[0007] As a further improvement of this utility model, a water tank is provided on the side of the water flow plate away from the ventilation plate, and the water overflowing from the water tank flows out through the water flow plate. The countertop covers the water tank at the position corresponding to the water tank.

[0008] As a further improvement of this utility model, the filter assembly includes a comb-shaped baffle, on which a continuous water flow is maintained. The comb-shaped baffle blocks dust and causes the dust to fall downwards. The continuous water flow on the comb-shaped baffle adsorbs dust and guides the dust downwards.

[0009] As a further improvement of this utility model, the number of the comb-shaped baffles is two, and the two comb-shaped baffles are staggered in the front and back rows.

[0010] As a further improvement of this utility model, the filtration assembly includes a water flow filter bag located below the water flow plate, which is used to receive and filter the water flowing out of the water flow plate.

[0011] As a further improvement of this utility model, the filtration assembly includes a wet filter, which filters the dust before discharging it.

[0012] As a further improvement of this utility model, the wet filter is filled with particulate filter material and keeps water flowing.

[0013] As a further improvement of this utility model, the negative pressure component is also connected to an air outlet device, at least a portion of the clean air delivered by the negative pressure component is delivered through the air outlet device, and the air outlet of the air outlet device is arranged downward; the negative pressure component also has an exhaust port, and a valve is provided on the exhaust port, and the air volume of the air outlet device is adjusted by the opening of the valve.

[0014] The beneficial effect of this utility model is that the mesh set on the table surface cooperates with the water flow plate that is inclined and maintains a continuous water flow below the table surface. The grinding dust is attracted by negative pressure and passes through the mesh to the water flow plate. It is then adhered to by the continuous water flow on the water flow plate and guided downward by the water flow into the filter component for filtration and collection. This effectively adheres, carries away and collects the dust that is splashed and ejected during the grinding process, reducing dust escape. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model (with the top portion of the outer shell hidden). Figure 2 This is a schematic diagram of the internal structure of the present invention. Figure 1 ; Figure 3 This is a schematic diagram of the internal structure of the present invention. Figure 2 ; Reference numerals: 1. Polishing table; 11. Tabletop; 111. Mesh; 12. Baffle; 13. Ventilation plate; 2. Filter assembly; 21. Comb-shaped baffle; 22. Wet filter; 3. Negative pressure assembly; 31. Exhaust vent; 32. Valve; 4. Flow plate; 41. Water tank; 5. Air outlet device; 51. Air outlet. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the embodiments shown in the accompanying drawings.

[0017] Reference Figure 1-3 As shown, a grinding dust removal and filtration device according to this embodiment includes a grinding table 1, a filter assembly 2 and a negative pressure assembly 3; The grinding table 1 is provided with a table surface 11, the table surface 11 is provided with a mesh 111, and a water flow plate 4 is provided below the table surface 11. The water flow plate 4 is inclined and maintains a continuous water flow. The negative pressure component 3 generates negative pressure, which attracts dust on the tabletop 11 through the mesh 111. After passing through the mesh 111, the dust reaches the water flow plate 4, adheres to the water flow plate 4, and is guided downward with the water flow into the filter component 2. The filter component 2 filters the dust.

[0018] During the polishing operation, the negative pressure component 3 generates negative pressure, creating suction at the tabletop 11 through the mesh 111. This suction draws the polishing dust downwards. The dust passes through the mesh 111 and falls to the inclined water flow plate 4. The continuous water flow on the water flow plate 4 forms a continuous water film that adheres to the falling dust. The adhered dust is then guided downwards along the inclined water flow plate 4 by the water flow and enters the filter component 2, where it is filtered and collected. In this way, the cooperation between the mesh 111 on the tabletop 11 and the water flow plate 4 below achieves the adhesion, removal, and collection of polishing dust, solving the problems of dust ejection due to collision and splashing in existing technologies, and incomplete dust removal due to difficulty in being attracted by negative pressure.

[0019] To prevent dust from scattering to both sides, in one optional solution, baffles 12 are provided on both sides of the work surface 11. The baffles 12 on both sides of the work surface 11 form a barrier on both sides of the dust scattering path, preventing dust from scattering to both sides of the work surface 11, and causing more dust to fall through the mesh 111 and be adhered and collected by the water flow plate 4. It also allows the negative pressure airflow to be more concentrated, increasing the dust attraction efficiency.

[0020] To assist in the negative pressure's attraction of dust to the end of the countertop 11, in one optional embodiment, a ventilation plate 13 is provided at the end of the countertop 11. The negative pressure generated by the negative pressure assembly 3 attracts dust from the countertop 11 through the ventilation plate 13. The ventilation plate 13 is located at the end of the countertop 11, allowing negative pressure airflow to pass through, enabling the negative pressure assembly 3 to attract dust in the area of ​​the countertop 11 through the ventilation plate 13, thereby expanding the dust attraction range.

[0021] To ensure a continuous water supply to the water flow plate 4, in one specific structure, a water trough 41 is provided on the side of the water flow plate 4 away from the ventilation plate 13. Water overflowing from the trough 41 flows out through the water flow plate 4, and the platform 11, corresponding to the position of the trough 41, shields the trough 41. The overflowing water in the trough 41 flows out along the water flow plate 4, providing a continuous water flow. The platform 11's shielding of the trough 41 prevents grinding dust from directly falling into it, keeping the water supply clean and thus maintaining a stable continuous water flow on the water flow plate 4. The overflowing trough 41 ensures even water distribution on the water flow plate 4, preventing the problem of only localized water flow.

[0022] To prevent dust attracted by negative pressure from falling, in one optional embodiment, the filter assembly 2 includes a comb-shaped baffle 21 with a continuous flow of water. The comb-shaped baffle 21 blocks dust and causes it to fall downwards. The continuous water flow on the comb-shaped baffle 21 adsorbs and guides the dust downwards. The comb-shaped baffle 21 forms an obstruction in the dust dispersion path, causing the dust to lose its dispersion kinetic energy and fall downwards. The continuous water flow maintained on the comb-shaped baffle 21 adsorbs the falling dust and guides it downwards with the water flow, thereby achieving further interception of dust attracted by negative pressure.

[0023] To further increase the dust-blocking area, two comb-shaped baffles 21 are used, with the two baffles 21 staggered in the front and rear rows. The staggered arrangement of the two comb-shaped baffles 21 creates complementary blocking surfaces on the dust dispersion path between the front and rear rows of teeth, increasing the dust-blocking area and further improving the dust blocking rate.

[0024] To filter and collect the dust-laden water flowing from the water flow plate 4, in one optional embodiment, the filter assembly 2 includes a water flow filter bag located below the water flow plate 4 to receive and filter the water flowing from the water flow plate 4. The continuous water flow on the water flow plate 4, after adhering to dust, flows downwards along the inclined water flow plate 4 into the water flow filter bag. The water flow filter bag filters the dust-laden water flow, trapping the dust inside the bag, thus achieving dust collection.

[0025] In one optional embodiment, to perform final filtration of residual dust, the filter assembly 2 includes a wet filter 22, which filters the dust before discharging it. Dust that remains after filtration by the aforementioned structure enters the wet filter 22 for wet filtration, and the filtered clean air is discharged by the negative pressure assembly 3.

[0026] To further improve filtration efficiency, the wet filter 22 is filled with particulate filter media and kept running with water. The particulate filter media forms a large filtration area inside the wet filter 22, and in conjunction with the running water, adsorbs and filters residual dust entering the wet filter 22, thereby improving filtration efficiency and making the discharged air cleaner.

[0027] To cool the operators in the processing area and avoid disrupting the negative pressure airflow, in one optional solution, the negative pressure component 3 is also connected to an air outlet device 5. At least a portion of the clean air supplied by the negative pressure component 3 is discharged through the air outlet device 5, with the air outlet 51 of the air outlet device 5 facing downwards. The negative pressure component 3 also has an exhaust port 31, with a valve 32 installed on the exhaust port 31. The airflow from the air outlet device 5 is adjusted by the opening of the valve 32. While discharging clean air, the negative pressure component 3 simultaneously sends at least a portion of the clean air into the air outlet device 5, which is then discharged downwards through the downward-facing air outlet 51, providing a cooling airflow for the operators. Since this cooling airflow originates from the clean air discharged by the negative pressure component 3, there is no need to install a separate fan in the processing area, thus avoiding the disruption of the negative pressure airflow by the fan and maintaining the dust adsorption effect. By adjusting the opening size of the valve 32, the amount of clean air discharged into the air through the exhaust port 31 can be increased or decreased, thereby adjusting the airflow of the air outlet device 5 and achieving flexible control of the cooling airflow.

[0028] In the complete grinding dust removal and filtration device described above, during grinding operations, the negative pressure component 3 generates negative pressure, which draws dust from the worktable 11 through the mesh 111 and ventilation plate 13; the baffles 12 on both sides of the worktable 11 prevent dust from scattering to both sides; after passing through the mesh 111, the dust is adhered to by the continuous water flow on the inclined water flow plate 4 and guided downward with the water flow, or it is drawn by the ventilation plate 13 to the comb-shaped baffle 21 where it is blocked and guided downward with the water flow; the overflowing water in the water tank 41 provides a continuous water supply to the water flow plate 4. The water source is shielded by a countertop 11, which prevents dust from falling into the water tank 41. Two staggered comb-shaped baffles 21 increase the blocking area, allowing the water flow to adsorb dust and draw it downwards. The dust-laden water flows into a water filter bag for filtration and collection. The remaining portion is filtered by a wet filter 22 filled with granular filter material and maintaining a continuous flow of water, and then discharged as clean air through a negative pressure assembly 3. A portion of this clean air is sent downwards through an air outlet 5 to cool the operators. The valve 32 on the exhaust vent 31 allows for adjustment of the airflow. The entire device effectively purifies grinding dust, especially sputtered dust, through the combined action of negative pressure suction, wet adhesion interception, and multi-stage filtration. This solves the technical problems of existing technologies where dust ejection is difficult to attract under negative pressure and dust removal is incomplete.

[0029] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A grinding dust removal and filtration device, characterized in that, It includes a grinding table (1), a filter assembly (2) and a negative pressure assembly (3); The polishing table (1) is provided with a table surface (11), the table surface (11) is provided with a mesh (111), and a water flow plate (4) is provided below the table surface (11). The water flow plate (4) is inclined and maintains a continuous water flow. The negative pressure component (3) generates negative pressure and attracts dust on the table (11) through the mesh (111). The dust passes through the mesh (111) and reaches the water flow plate (4). It adheres to the water flow plate (4) and is guided downward with the water flow into the filter component (2). The filter component (2) filters the dust. The negative pressure component (3) is also connected to an air outlet device (5). At least a portion of the clean air delivered by the negative pressure component (3) is delivered through the air outlet device (5), and the air outlet (51) of the air outlet device (5) is set downward.

2. The grinding dust removal and filtration device according to claim 1, characterized in that, The tabletop (11) is provided with baffles (12) on both sides.

3. The grinding dust removal and filtration device according to claim 1, characterized in that, A ventilation plate (13) is provided at the end of the tabletop (11), and the negative pressure generated by the negative pressure component (3) attracts dust on the tabletop (11) through the ventilation plate (13).

4. The grinding dust removal and filtration device according to claim 3, characterized in that, A water trough (41) is provided on the side of the water flow plate (4) away from the ventilation plate (13). Water overflowing from the water trough (41) flows out through the water flow plate (4). The table surface (11) covers the water trough (41) at the position corresponding to the water trough (41).

5. The grinding dust removal and filtration device according to claim 1, characterized in that, The filter assembly (2) includes a comb-shaped baffle (21) on which a continuous flow of water is maintained. The comb-shaped baffle (21) blocks dust and causes the dust to fall downwards. The continuous flow of water on the comb-shaped baffle (21) adsorbs the dust and directs the dust downwards.

6. The grinding dust removal and filtration device according to claim 5, characterized in that, The number of the comb-shaped baffles (21) is two, and the two comb-shaped baffles (21) are staggered in the front and back rows.

7. The grinding dust removal and filtration device according to claim 1, characterized in that, The filter assembly (2) includes a water flow filter bag located below the water flow plate (4) for receiving and filtering the water flowing out of the water flow plate (4).

8. The grinding dust removal and filtration device according to claim 1, characterized in that, The filter assembly (2) includes a wet filter (22), which filters the dust and discharges it; the wet filter (22) is filled with particulate filter material and keeps water flowing.

9. The grinding dust removal and filtration device according to claim 1, characterized in that, The negative pressure component (3) also has an exhaust port (31), and a valve (32) is provided on the exhaust port (31) to adjust the air volume of the air outlet device (5) through the opening of the valve (32).