A dust filter box for a grinding table

Abstract

The present invention discloses a grinding table dust filter box, which belongs to the field of grinding dust collection technology. It includes: a shell including a horizontal section, a vertical section and an arc section transitionally connected between the horizontal section and the vertical section; a plurality of partitions are arranged in the arc section and the vertical section in the shell; the two sides of the partition are respectively fixed on the inner walls on both sides of the shell, and the arc section and the vertical section are divided into a plurality of independent shunt channels; wherein the upper end of the shunt channel is opposite to the horizontal section and the height increases successively, and the upper end height of the shunt channel farther away from the horizontal section is higher; a filter screen is installed in each shunt channel, and the filter holes of the filter screen in the shunt channel farther away from the horizontal section are smaller. The present invention realizes hierarchical filtration of smoke particles by dividing the entire ventilation channel into a plurality of shunt channels, and using inlets of different heights and filter screens of different apertures, which significantly improves the filtration efficiency, so that the filter screen can more effectively filter particles of respective particle size ranges.

Description

Technical Field

[0001] The invention relates to the technical field of grinding and dust collection, and in particular to a grinding table dust collection filter box. Background Art

[0002] In the mechanical processing industry, grinders and polishers are important surface treatment equipment and are widely used in the fine processing of metals, plastics and other materials. While these devices can effectively remove surface defects of materials, they also produce a large amount of smoke and dust particles, which not only pollute the working environment and pose a threat to the health of operators, but also may affect the normal operation of the equipment and the processing quality. Therefore, it is very important to equip efficient and reliable dust collection devices to protect the health of workers, maintain a clean working environment and improve processing efficiency.

[0003] Traditional dust collection devices often use a single filtering structure, that is, a set of filters are set in the entire ventilation channel to filter smoke and dust. This filtering structure has great limitations when facing a large number of smoke and dust particles with a wide distribution of particle sizes. It requires a finer filter to filter all airflows with different particles, resulting in low filter efficiency, easy clogging of the filter, and shortened service life. Summary of the invention

[0004] In view of the above-mentioned technical deficiencies, the present invention provides a dust filter box for a grinding table, which processes smoke and dust in a graded manner through a plurality of diversion channels, thereby improving the working energy efficiency of filter screens at each level.

[0005] The present invention adopts the following technical solution: a grinding table dust filter box, comprising:

[0006] A shell, the shell comprising a horizontal section, a vertical section and an arc section transitionally connected between the horizontal section and the vertical section;

[0007] A plurality of partitions are arranged in the arc segment and the vertical segment of the shell; two side edges of the partitions are respectively fixed on the inner walls of the shell on both sides, dividing the arc segment and the vertical segment into a plurality of independent diversion channels;

[0008] The upper end of the diversion channel is opposite to the horizontal section and the height increases successively, and the upper end of the diversion channel farther away from the horizontal section has a higher height;

[0009] A filter screen is installed in each of the diversion channels, and the filter holes of the filter screen in the diversion channel farther away from the horizontal section are smaller.

[0010] Furthermore, the partition comprises:

[0011] An arc-shaped plate fixed in the arc-shaped segment;

[0012] A vertical plate is fixed in the vertical section; the upper end of the vertical plate is fixedly connected to the lower end of the arc-shaped plate, and a connecting hole is opened at the lower end of the vertical plate;

[0013] The upper ends of all the arc-shaped plates are opposite to the horizontal section and their heights increase successively, and the upper ends of the arc-shaped plates farther away from the horizontal section have higher heights;

[0014] The diversion channel on the side of the vertical plate close to the horizontal section is the front-stage diversion channel, and the diversion channel on the side of the vertical plate away from the horizontal section is the rear-stage diversion channel. The front-stage diversion channel is connected to the rear-stage diversion channel through the corresponding connecting hole at the lower end of the vertical plate.

[0015] A balancing hole penetrating the vertical plate is provided at a position on the upper end of the vertical plate that is higher than the filter screen.

[0016] An arc-shaped protrusion is provided on the upper inner wall of the upper end of the arc-shaped segment, and a gap is provided between the upper end of the uppermost arc-shaped plate and the arc-shaped protrusion and is horizontally opposite to the lowest position of the arc-shaped protrusion.

[0017] The end of the horizontal section away from the arc section is the air inlet; the lower end of the diversion channel farthest from the horizontal section is the air outlet;

[0018] During operation, the airflow in the front-stage flow-dividing channel passes through the corresponding filter screen and the connecting hole and then flows into the rear-stage flow-dividing channel.

[0019] A mounting hole is provided on the shell body opposite to the lower end of the diverter channel, a blocking seat is inserted into the mounting hole, and the filter screen in the diverter channel is installed at the inner end of the corresponding blocking seat.

[0020] The blocking seat comprises:

[0021] A plug-in frame is inserted into the lower end of the diversion channel, and the plug-in frame is slidably matched with the housing and the partition on the side of the diversion channel;

[0022] A blocking plate is fixed at the lower end of the plug frame; the edge of the blocking plate abuts against the shell and the end of the partition at the lower end of the diversion channel;

[0023] The flange plate is fixed to one side of the blocking plate and is fixedly connected to the shell or partition by bolts.

[0024] The inner end of the plug-in frame is also fixed with a windshield strip aligned with the connecting hole at the lower end of the vertical plate;

[0025] The filter is fixed obliquely at the inner end of the plug-in frame, one end of the filter close to the windshield is located at the lower side of the windshield with a gap between the windshield, and one end of the filter away from the windshield is arranged obliquely upward.

[0026] The beneficial effects of the present invention are:

[0027] By dividing the entire ventilation channel into multiple diversion channels and using inlets at different heights and filters with different apertures, the smoke particles are filtered in stages. Large particles are first intercepted by the left filter under the action of gravity, medium particles are filtered by the middle filter, and small particles are filtered by the finer right filter. This design significantly improves the filtering efficiency, allowing the filter to more effectively filter particles within their respective particle size ranges. Moreover, due to the use of staged filtration, the number of large particles faced by each filter is reduced, the burden on the filter is reduced, and the service life of the filter is extended.

[0028] A sealing seat is arranged at the lower end of the diversion channel to realize the quick disassembly and assembly of the filter, simplify the maintenance and replacement process of the filter, and reduce the operating difficulty of maintenance personnel; a wind shield strip is designed in the sealing seat to form a "dead corner" that is conducive to storing filtered smoke particles, thereby increasing the service life and filtering effect of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 The present invention is a three-dimensional diagram of a dust filter box for a grinding table.

[0031] Figure 2 The present invention is a left side view of a dust filter box for a grinding table.

[0032] Figure 3 for Figure 2 Medium AA section view.

[0033] Figure 4 for Figure 3 Enlarged view of point B in the middle.

[0034] Figure 5 The figure is a schematic diagram of the assembly of a dust filter box for a grinding table according to the present invention (the front side plate of the shell is hidden in the figure).

[0035] Figure 6 3D is a three-dimensional diagram of the housing of the present invention (the front side plate of the housing is hidden in the figure).

[0036] Figure 7 It is a three-dimensional diagram of the sealing seat in the present invention.

[0037] Description of reference numerals:

[0038] 1. Shell; 11. Horizontal section; 12. Arc section; 121. Arc protrusion; 13. Vertical section; 14. Mounting hole;

[0039] 2. Partition; 21. Curved plate; 22. Vertical plate; 221. Connecting hole; 222. Balance hole;

[0040] 3. Diversion channel;

[0041] 4. Filter;

[0042] 5. Sealing seat; 51. Plug-in frame; 52. Sealing plate; 53. Flange plate; 54. Windshield strip; 55. Bolt;

[0043] 61. Air inlet; 62. Air outlet. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] Embodiment 1:

[0046] like Figures 1 to 3 As shown, the present invention provides a grinding table dust filter box, which mainly includes a shell 1 and a plurality of partitions 2 fixed in the shell 1. The shell 1 is open at both ends, and the whole constitutes a ventilation channel. The shell 1 includes a horizontal section 11, an arc section 12 and a vertical section 13, and the arc section 12 is transitionally connected between the horizontal section 11 and the vertical section 13. Among them, the width of the vertical section 13 is greater than the width of the horizontal section 11.

[0047] A plurality of partitions 2 are arranged in the arc segment 12 and the vertical segment 13 in the housing 1. In this embodiment, two partitions 2 are provided. The partition 2 includes an arc plate 21 and a vertical plate 22. The arc plate 21 is provided in the arc segment 12, and the two sides of the arc plate 21 are fixed to the two sides of the housing 1. The vertical plate 22 is provided in the vertical segment 13, and the upper end of the vertical plate 22 is fixedly connected to the lower end of the arc plate 21, and the two sides of the vertical plate 22 are fixed to the two sides of the housing 1.

[0048] The partition 2 divides the entire ventilation channel into three branch channels 3 in the arc section 12 and the vertical section 13 of the housing 1, and a filter screen 4 is installed in each branch channel 3. Figure 3As shown, the upper ends of all the arc plates 21 are horizontally opposite to the horizontal section 11 and their heights increase successively. The farther away from the horizontal section 11, the higher the upper end height of the arc plate 21 is, that is, the height of the upper end inlet of the diversion channel 3 increases successively from left to right; similarly, the farther away from the horizontal section 11, the smaller the filter holes of the filter screen 4 in the diversion channel 3 are.

[0049] A connecting hole 221 is provided at the lower end of the vertical plate 22, penetrating the vertical plate 22 in the thickness direction of the vertical plate 22. The flow diversion channel 3 on the side of the vertical plate 22 close to the horizontal section 11 is used as the front-stage flow diversion channel 3, and the flow diversion channel 3 on the side of the vertical plate 22 away from the horizontal section 11 is used as the rear-stage flow diversion channel 3. The front-stage flow diversion channel 3 is connected to the rear-stage flow diversion channel 3 through the corresponding connecting hole 221 at the lower end of the vertical plate 22.

[0050] When working;

[0051] like Figure 3 As shown, the end of the horizontal section 11 away from the arc section 12 is an air inlet 61, and the air inlet 61 is connected to the grinding station of the grinding table through a ventilation hose; the lower end of the diversion channel 3 farthest from the horizontal section 11 is provided with an air outlet 62, and the air outlet 62 is connected to the negative pressure device;

[0052] During operation, the airflow with smoke particles enters the horizontal section 11 from the air inlet 61; during the flow of the airflow from left to right in the horizontal section 11, smoke particles of different sizes fall to different degrees according to their own weight, and then enter the diversion channels 3 at different heights;

[0053] The airflow entering the left side diversion channel 3 is filtered by the left side filter 4, and then merges into the middle diversion channel 3 through the connecting hole 221 under the left side partition 2; then, it passes through the middle filter 4 together with the airflow entering the middle diversion channel 3, and the filtered airflow merges into the right side diversion channel 3 through the connecting hole 221 under the right side partition 2; then, it passes through the right side filter 4 together with the airflow entering the right side diversion channel 3 to achieve final filtration, and is finally discharged through the air outlet 62.

[0054] The present invention divides the entire ventilation channel into multiple diversion channels 3, utilizes the dead weight of different particles to achieve hierarchical diversion, utilizes filter screens 4 with different filter hole diameters to filter each diversion channel 3 accordingly, and then merges them in sequence, so that large particles of smoke are filtered into the left filter screen 4, medium particles of smoke are filtered into the middle filter screen 4, and small particles of smoke are filtered into the right filter screen 4; by selecting a suitable filter screen 4 to process the corresponding different smoke particles, the energy efficiency of the filter screen 4 can be improved and the service life of the filter screen 4 can be extended.

[0055] like Figure 4 and Figure 5As shown, in this embodiment, a balancing hole 222 is provided at the upper end of the vertical plate 22 at a position higher than the filter screen 4, and the balancing hole 222 allows part of the airflow to flow in each diversion channel 3, so as to avoid or reduce the disturbance of the arc plate 21 caused by the different gas flow rates in each diversion channel 3, thereby improving the service life of the arc plate 21.

[0056] like Figures 3 to 5 As shown, in this embodiment, an arc-shaped protrusion 121 is provided on the upper inner wall of the upper end of the arc segment 12, and a gap is provided between the upper end of the uppermost arc plate 21 and the arc-shaped protrusion 121 and is horizontally opposite to the lowest position of the arc-shaped protrusion 121; the arc-shaped protrusion 121 can block large particles and allow particles as light as possible to enter the diversion channel 3 on the right.

[0057] Embodiment 2:

[0058] On the basis of the above-mentioned first embodiment, the present invention provides a blocking seat 5 for installing the filter screen 4 , through which the filter screen 4 can be quickly disassembled and assembled.

[0059] Combination Figures 3 to 6 As shown, the lower end of the diversion channel 3 is successively lowered from left to right in a stepped shape. A mounting hole 14 is provided on the housing 1 opposite to the lower end of the diversion channel 3, and the blocking seat 5 is inserted into the mounting hole 14.

[0060] Recombination Figure 7 As shown, the plugging seat 5 includes a plug-in frame 51 that fits into the lower end of the diverter channel 3, and the four sides of the plug-in frame 51 are respectively slidably matched with the shell 1 and the partition 2 on the side of the diverter channel 3. The plugging plate 52 is fixed to the lower end of the plug-in frame 51. The plugging plate 52 is arranged obliquely and opposite to the connecting hole 221 on the right side, directing the airflow to the connecting hole 221 on the right side; the plugging plate 52 has edges around it, and the edges are against the ends of the shell 1 and the partition 2 at the lower end of the diverter channel 3 to ensure the sealing effect. The flange plate 53 is fixed to one side of the plugging plate 52, and the flange plate 53 is attached to the corresponding partition 2 or the side wall of the shell 1 and fixed by bolts 55.

[0061] The filter 4 is fixed obliquely at a position close to the inner end of the plug-in frame 51, and a windshield strip 54 is also fixed to the inner end of the plug-in frame 51, and the windshield strip 54 is aligned with the connecting hole 221. The end of the filter 4 close to the windshield strip 54 is located at the lower side of the windshield strip 54 and a gap is left between the windshield strip 54, and the end of the filter 4 away from the windshield strip 54 is arranged obliquely upward. The airflow passing through the connecting hole 221 is guided by the windshield strip 54 and blows toward the filter 4, forming a "dead angle" between the lower side of the windshield strip 54 and the filter 4, which can store the smoke particles filtered by the filter 4.

[0062] In this embodiment, when the filter 4 needs to be maintained or replaced, the bolt 55 can be removed to pull the sealing seat 5 out of the mounting hole 14. After cleaning or replacing the filter 4, the sealing seat 5 can be reinstalled, thereby improving the maintenance and replacement efficiency of the filter 4 and reducing downtime.

[0063] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A dust filter box for a grinding table, characterized in that: include: A shell (1), the shell (1) comprising a horizontal section (11), a vertical section (13), and an arc section (12) transitionally connected between the horizontal section (11) and the vertical section (13); A plurality of partitions (2) are arranged in an arc segment (12) and a vertical segment (13) in the shell (1); two side edges of the partitions (2) are respectively fixed to two side inner walls of the shell (1) to divide the arc segment (12) and the vertical segment (13) into a plurality of independent flow-dividing channels (3); The upper end of the diversion channel (3) is opposite to the horizontal section (11) and the height increases successively, and the height of the upper end of the diversion channel (3) that is farther away from the horizontal section (11) is higher; A filter screen (4) is installed in each of the flow diversion channels (3), and the filter holes of the filter screen (4) in the flow diversion channels (3) that are farther away from the horizontal section (11) are smaller; The partition (2) comprises: An arc-shaped plate (21) fixed in the arc-shaped segment (12); A vertical plate (22) is fixed in the vertical section (13); the upper end of the vertical plate (22) is fixedly connected to the lower end of the arc-shaped plate (21), and a communication hole (221) is formed at the lower end of the vertical plate (22); The upper ends of all the arc-shaped plates (21) are opposite to the horizontal section (11) and their heights increase successively, and the upper ends of the arc-shaped plates (21) that are farther away from the horizontal section (11) have higher heights; The flow diversion channel (3) on the side of the vertical plate (22) close to the horizontal section (11) is a front-stage flow diversion channel (3), and the flow diversion channel (3) on the side of the vertical plate (22) away from the horizontal section (11) is a rear-stage flow diversion channel (3), and the front-stage flow diversion channel (3) is connected to the rear-stage flow diversion channel (3) through a corresponding connecting hole (221) at the lower end of the vertical plate (22); The end of the horizontal section (11) farthest from the arc section (12) is an air inlet (61); the lower end of the diversion channel (3) farthest from the horizontal section (11) is an air outlet (62); During operation, the airflow in the front-stage flow-dividing channel (3) passes through the corresponding filter screen (4) and the connecting hole (221) and then flows into the rear-stage flow-dividing channel (3).

2. A dust filter box for a grinding table according to claim 1, characterized in that: A balancing hole (222) penetrating the vertical plate (22) is provided at a position of the upper end of the vertical plate (22) that is higher than the filter screen (4).

3. The dust filter box for a grinding table according to claim 1, characterized in that: An arc-shaped protrusion (121) is provided on the upper inner wall of the upper end of the arc-shaped segment (12), and a gap is provided between the upper end of the uppermost arc-shaped plate (21) and the arc-shaped protrusion (121), and the arc-shaped protrusion (121) is horizontally opposite to the lowest position of the arc-shaped protrusion (121).

4. The dust filter box for a grinding table according to claim 1, characterized in that: A mounting hole (14) is provided on the housing (1) opposite to the lower end of the diverter channel (3), a blocking seat (5) is inserted into the mounting hole (14), and the filter screen (4) in the diverter channel (3) is mounted on the inner end of the corresponding blocking seat (5).

5. A dust filter box for a grinding table according to claim 4, characterized in that: The blocking seat (5) comprises: A plug-in frame (51) is inserted into the lower end of the diversion channel (3), and the plug-in frame (51) is slidably matched with the housing (1) and the partition (2) on the side of the diversion channel (3); A blocking plate (52) is fixed to the lower end of the plug-in frame (51); the edge of the blocking plate (52) abuts against the end of the housing (1) and the partition (2) at the lower end of the diversion channel (3); The flange plate (53) is fixed to one side of the blocking plate (52) and is fixedly connected to the housing (1) or the partition (2) via bolts (55).

6. A dust filter box for a grinding table according to claim 5, characterized in that: A windshield strip (54) aligned with the communication hole (221) at the lower end of the vertical plate (22) is also fixed to the inner end of the plug-in frame (51); The filter screen (4) is fixed at an angle to the inner end of the plug-in frame (51); one end of the filter screen (4) close to the wind shield strip (54) is located at the lower side of the wind shield strip (54) with a gap between the filter screen (4) and the wind shield strip (54); and one end of the filter screen (4) away from the wind shield strip (54) is arranged upward at an angle.

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