A dust removal device

Abstract

This utility model provides a dust removal device, relating to the field of dust removal technology. The utility model includes a housing, a suction mechanism, and a filtration mechanism disposed within the housing. The suction mechanism includes a suction pipe and a suction pipe connected to the housing. A fan is mounted on the suction pipe, and the suction pipe draws in dust-laden gas. The filtration mechanism includes a bottom plate and a partition plate disposed within the housing. The suction pipe communicates with the upper space of the partition plate, and the suction pipe communicates with the lower space of the partition plate. The bottom plate is located below the air outlet end of the suction pipe. A filter channel is provided at the bottom of the partition plate, and a toothed plate is movably connected to the side wall of the filter channel. The housing above the bottom plate is filled with water at a level not higher than the bottom of the filter channel. This utility model removes dust and moisture from gas without the need for a large-scale dust removal system, using external air circulation.

Description

Technical Field

[0001] This utility model relates to the field of dust removal technology, specifically to a dust removal device. Background Technology

[0002] After the single-crystal silicon rod is processed, it needs to be cut, squared, and ground into square rods for making silicon wafers. In the above processing steps, humid gas containing dust will be generated. Currently, the humid gas is treated by large-scale ventilation and dust removal.

[0003] In existing technologies, the dust removal of machining equipment with moisture content adopts a large-scale dust removal system with external air circulation. Given that machining workshops have high equipment density, small usable space, numerous pipes, and a relatively hot environment, the demand for cooling is also large. However, the dust removal and exhaust system will take away a large amount of cooling capacity. Furthermore, when some machining equipment is intermittently shut down, the large exhaust system also works at full load, which is not conducive to energy conservation and consumption reduction. In addition, the large-scale system mode requires the layout of main pipes and a large number of branch pipes, which occupies a lot of space and investment funds. Utility Model Content

[0004] The purpose of this invention is to develop a dust removal device that can remove dust and moisture from gas by means of external air circulation without the need for a large dust removal system.

[0005] This utility model is achieved through the following technical solution:

[0006] A dust removal device, comprising:

[0007] case;

[0008] The suction mechanism and the filtration mechanism are located inside the housing;

[0009] The suction mechanism includes a suction pipe and an air suction pipe connected to the housing. The suction pipe is equipped with a fan, and the air suction pipe draws in dust-laden gas.

[0010] The filtration mechanism includes a bottom plate and a partition plate disposed within the housing. The suction pipe communicates with the upper space of the partition plate, and the suction pipe communicates with the lower space of the partition plate. The bottom plate is located below the air outlet end of the suction pipe. A filter air passage is provided at the bottom of the partition plate. A toothed plate is movably connected to the side wall of the filter air passage. The housing above the bottom plate is filled with water at a level not higher than the bottom end of the filter air passage.

[0011] Optionally, the filter air duct includes two baffles, both ends of which are connected to the inner wall of the housing, and the filter air duct is formed by the two baffles and the inner wall of the housing.

[0012] Optionally, the teeth of the toothed plate are arranged facing downwards, and the toothed plate is located on the side of the filter airway closer to the intake tube.

[0013] Optionally, a guide tube is provided near the bottom of the filter airway, and the guide tube has a hollow structure inside and its cavity is connected to the filter airway.

[0014] Optionally, the guide tube has a cylindrical structure, the filter air passage is arranged vertically, and the axial direction of the guide tube is arranged horizontally.

[0015] Optionally, the width of the cavity inside the guide tube is smaller than the width of the filter air passage.

[0016] Optionally, the base plate is inclined, and a drain groove is provided at the lower end of the base plate. A drain pipe connected to the bottom of the drain groove is provided on the housing. An overflow pipe with a height lower than the bottom of the filter air passage is also connected to the housing. Valves are provided on both the drain pipe and the overflow pipe.

[0017] Optionally, a metal demister screen is provided inside the housing between the partition and the suction pipe.

[0018] Optionally, a rinsing mechanism is provided above the metal demister. The rinsing mechanism includes a spray pipe located inside the housing above the metal demister. The spray pipe extends out of the housing and is connected to a water source. A solenoid valve is provided on the spray pipe outside the housing. The bottom of the spray pipe is covered with nozzles or spray holes.

[0019] Optionally, the device is located on top of the machining equipment, and the suction pipe is connected to the exhaust port of the machining equipment.

[0020] Optionally, the device is located on top of the machining equipment, and the suction pipe is connected to the exhaust port of the machining equipment.

[0021] The beneficial effects of this utility model are:

[0022] This utility model is small in size and can be installed on the top of machining equipment without taking up space. The purified and dust-removed air circulates indoors, avoiding the exhaust of cold energy, thus achieving energy saving and consumption reduction. In addition, the large-scale dust removal system reduces the layout of pipes and space occupation, reduces the workload, and saves money. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the installation of a dust removal device on machining equipment;

[0025] Figure 2 This is a structural diagram of a dust removal device;

[0026] Figure 3 for Figure 2 The left view.

[0027] Reference numerals: 1. Machining equipment; 2. Housing; 3. Spray pipe; 4. Solenoid valve; 5. Suction pipe; 6. Fan; 7. Frame; 8. Suction pipe; 9. Observation window; 10. Base plate; 11. Drainage trough; 12. Drain pipe; 13. Overflow pipe; 14. Partition plate; 15. Toothed plate; 16. Flow guide tube; 17. Metal demister; 18. Baffle. Detailed Implementation

[0028] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0029] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention 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. Therefore, they should not be construed as limiting this invention.

[0030] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0031] like Figures 1-3 As shown, this utility model discloses a dust removal device, including a housing 2, which is located on top of a machining equipment 1. The housing 2 is equipped with a suction mechanism, a filtration mechanism, and a rinsing mechanism. The suction mechanism draws the dust-containing humid gas (hereinafter referred to as dust-containing humid gas) discharged from the machining equipment 1 into the housing 2. The filtration mechanism filters the dust-containing humid gas and then discharges the purified gas. The rinsing mechanism can rinse the filtration mechanism to maintain its filtration performance and cleanliness.

[0032] The suction mechanism includes a suction pipe 8 vertically installed at the bottom of the housing 2. The bottom end of the suction pipe 8 extends out of the housing 2 and connects to the exhaust port of the machining equipment 1. The top end of the suction pipe 8 is located in the middle of the housing 2. A suction pipe 5 is connected to the top of the housing 2. A fan 6 is connected to the end of the suction pipe 5. A frame 7 is provided at the bottom of the fan 6. The frame 7 is located on the side of the housing 2 and on the top of the machining equipment 1.

[0033] The filtration mechanism includes a bottom plate 10 inclined inside the housing 2. The bottom plate 10 is located at the lower part of the housing 2. The top of the air intake pipe 8 is higher than the bottom plate 10. A drain trough 11 is provided at the lower end of the bottom plate 10. A drain pipe 12 connected to the bottom of the drain trough 11 is provided on the housing 2. A valve is provided on the drain pipe 12.

[0034] A partition 14 is provided inside the housing 2 above the base plate 10. The partition 14 is horizontally arranged and is also located above the top of the intake pipe 8. Two filter assemblies are provided at the bottom of the partition 14, and the two filter assemblies are located on both sides of the intake pipe 8.

[0035] The filter assembly includes a filter air passage vertically disposed at the bottom of the partition 14, which connects the upper and lower sides of the partition 14. The bottom of the filter air passage is lower than the top of the intake pipe 8. The filter air passage is enclosed by two vertically arranged and parallel baffles 18 and the two side walls of the housing 2. The internal cavity of the filter air passage is rectangular.

[0036] A guide tube 16 is provided near the bottom of the filter air passage. The guide tube 16 has a cylindrical structure with a hollow interior that is connected to the filter air passage. The guide tube 16 is arranged horizontally along its axis. The airflow drawn in by the intake pipe 8 enters from the bottom of the filter air passage, passes through the guide tube 16, and then enters the upper part of the baffle 14 through the filter air passage.

[0037] The width of the cavity inside the guide tube 16 (i.e., the distance between the two inner walls of the guide tube 16) is smaller than the width inside the filter channel (i.e., the distance between the two baffles 18), which makes the airflow speed up when it enters the cavity inside the guide tube. When the airflow flows quickly through the guide tube, the dust in the airflow undergoes centrifugal motion, causing fine dust to adhere to the inner wall of the guide tube.

[0038] A toothed plate 15 is provided at the bottom of the filter airway near the intake tube 8, such as Figure 3 As shown in the figure, the cross-sectional view shows that the toothed plate 15 is arranged horizontally with the teeth facing downwards. A screw is provided on the outer wall of the bottom of the filter air passage, that is, the outer wall of the baffle 18. The toothed plate 15 has a vertically arranged strip hole that cooperates with the screw. After the screw passes through the strip hole of the toothed plate 15, it is tightened with a nut to fix the position of the toothed plate 15. Loosening the nut can move the toothed plate 15 vertically to adjust the horizontal height of the toothed plate 15.

[0039] An overflow pipe 13 is connected to the side wall of the housing 2. A valve is provided on the overflow pipe 13. The height of the overflow pipe 13 is lower than the bottom of the filter air passage.

[0040] A horizontally arranged metal demister 17 is provided in the housing 2 above the partition 14. The bottom of the metal demister 17 is provided with multiple support rods that are connected to the housing 2 and support the metal demister 17.

[0041] The rinsing mechanism includes a spray pipe 3 horizontally positioned inside the housing 2 above the metal demister 17. The spray pipe 3 extends out of the housing 2 and is connected to a water source. A solenoid valve 4 is provided on the spray pipe 3 outside the housing 2. The bottom of the spray pipe 3 is covered with nozzles or spray holes.

[0042] A transparent observation window 9 is provided on the side wall of the housing 2, through which the internal condition of the housing 2 can be observed.

[0043] The housing 2 on the base plate 10 is filled with water. The water level is lower than the bottom of the filter air passage. The height of the toothed plate 15 is adjusted to match the water level, ensuring that the toothed part at the bottom of the toothed plate 15 is submerged in water during the dust collection process. This allows the airflow to flow quickly through the gaps between the teeth, impacting the water and causing disturbance in the water flow. This allows the water and airflow to mix thoroughly, and the dust in the airflow is captured by the water flow, achieving the best dust removal effect. The water level can also be adjusted through the overflow pipe 13.

[0044] The fan 6 operates to draw in the dusty and humid gas discharged from the machining equipment 1. The gas enters the housing 2 through the suction pipe 8. After the airflow enters the housing 2, the larger dust particles settle into the water by gravity and eventually settle onto the bottom plate 10. When the airflow passes through the gap between the teeth at the bottom of the toothed plate 15, the water flow is disturbed, and the water flow mixes with the dusty and humid gas. The dust particles with moderate size in the gas are captured by the water and eventually settle onto the bottom plate 10. The remaining smaller dust particles enter the filter air passage with the airflow. After the airflow enters the guide tube 16, it moves in an arc and the flow rate increases. During this process, the remaining smaller dust particles in the airflow are thrown onto the inner wall of the guide tube 16 due to centrifugal motion. The dust adheres to the inner wall of the guide tube 16. After the airflow passes upward through the baffle 14, the water mist in the airflow is finally intercepted by the metal demister 17. The clean gas after passing through the metal demister 17 is discharged through the fan 6.

[0045] The rinsing mechanism sprays water periodically. When the solenoid valve 4 is opened, water flows down from the spray pipe 3 through the metal defoaming mesh 17 and into the baffle 14. The water flows into the filter air passage and rinses the inner wall of the guide tube 16. The dust adhering to the inner wall of the guide tube 16 is washed away, falls into the water, and finally settles onto the bottom plate 10.

[0046] Dust deposited on the base plate 10 flows towards the lower end of the base plate 10 under gravity and eventually collects in the drain trough 11, from which it can be discharged by the drain pipe 12. The internal operation of the housing 2 can be observed through the observation window 9, facilitating maintenance.

[0047] This utility model is small in size and is located on the top of the machining equipment 1 without taking up space. The purified and dust-removed air circulates indoors, avoiding the exhaust of cold energy, thus achieving energy saving and consumption reduction. In addition, the large-scale dust removal system reduces the layout of pipes and space occupation, reduces the workload, and saves money.

[0048] The above embodiments are merely preferred embodiments of this utility model and are not intended to limit the technical solutions of this utility model. Any technical solution that can be implemented based on the above embodiments without creative effort should be considered to fall within the scope of protection of this utility model patent.

Claims

1. A dust removal device, characterized in that, include: case; The suction mechanism and the filtration mechanism are located inside the housing; The suction mechanism includes a suction pipe and an air suction pipe connected to the housing. The suction pipe is equipped with a fan, and the air suction pipe draws in dust-laden gas. The filtration mechanism includes a bottom plate and a partition plate disposed within the housing. The suction pipe communicates with the upper space of the partition plate, and the suction pipe communicates with the lower space of the partition plate. The bottom plate is located below the air outlet end of the suction pipe. A filter air passage is provided at the bottom of the partition plate. A toothed plate is movably connected to the side wall of the filter air passage. The housing above the bottom plate is filled with water at a level not higher than the bottom end of the filter air passage.

2. The dust removal device according to claim 1, characterized in that, The filter air passage includes two baffles, both ends of which are connected to the inner wall of the housing. The filter air passage is formed by the two baffles and the inner wall of the housing.

3. The dust removal device according to claim 2, characterized in that, The teeth of the toothed plate are arranged with the teeth facing downwards, and the toothed plate is located on the side of the filter airway closer to the intake pipe.

4. The dust removal device according to claim 1, characterized in that, The filter air duct is provided with a guide tube near the bottom end. The guide tube has a hollow structure inside and its cavity is connected to the filter air duct.

5. The dust removal device according to claim 4, characterized in that, The guide tube has a cylindrical structure, the filter air passage is arranged vertically, and the axial direction of the guide tube is arranged horizontally.

6. The dust removal device according to claim 5, characterized in that, The width of the cavity inside the guide tube is smaller than the width of the filter air passage.

7. The dust removal device according to claim 1, characterized in that, The base plate is inclined, and a drain trough is provided at the lower end of the base plate. A drain pipe connected to the bottom of the drain trough is provided on the housing. An overflow pipe with a height lower than the bottom of the filter air passage is also connected to the housing. Valves are provided on both the drain pipe and the overflow pipe.

8. The dust removal device according to claim 1, characterized in that, A metal defoaming screen is installed inside the shell between the partition and the suction pipe.

9. The dust removal device according to claim 8, characterized in that, A rinsing mechanism is provided above the metal demister. The rinsing mechanism includes a spray pipe located inside the housing above the metal demister. The spray pipe extends out of the housing and is connected to a water source. A solenoid valve is provided on the spray pipe outside the housing. The bottom of the spray pipe is covered with nozzles or spray holes.

10. The dust removal device according to any one of claims 1 to 9, characterized in that, The device is located on top of the machining equipment, and the suction pipe is connected to the exhaust port of the machining equipment.

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