Explosion dust dust removal device

Abstract

The application relates to the technical field of dust removal devices, and discloses a blasting dust removal device, which comprises a filter box, one side of the filter box is provided with an air inlet, the top of the filter box is fixedly connected with an air outlet, one side of the filter box is fixedly connected with a water inlet, the other side of the filter box is fixedly connected with a water tank, the inner side wall of the filter box is fixedly connected with a baffle, the baffle is located at the top end of the air inlet, the bottom of the baffle is fixedly connected with a bending block, one side of the bending block is provided with a guide block, the bending part of the baffle is fixedly connected with a circular-arc baffle piece, and the top of the circular-arc baffle piece is provided with a mounting frame. The blasting dust removal device can effectively filter dust in blasting through the water surface at the bottom of the filter box, cooperate with the baffle, the bending block and other components to preliminarily separate large-particle impurities, combine subsequent multi-stage interception, water mist dust setting and flocculation precipitation, and greatly improve the overall dust removal efficiency.

Description

Technical Field

[0001] This application relates to the field of dust removal equipment technology, and in particular to a dust removal device for blasting dust. Background Technology

[0002] In various engineering blasting operations, such as mining, tunnel excavation, and water conservancy and hydropower construction, the explosion of explosives will cause the rock and soil to be subjected to strong impact and break, which will generate a large amount of dust. These blasting dust particles vary in size, are widely distributed, and their concentration increases sharply in a short period of time.

[0003] When the dust removal device for blasting dust is performing filtration operations, the dust being processed often contains large particles. These sand and gravel particles are not only large in size, but also have high hardness. During the filtration process, these sand and gravel particles can easily penetrate the filter layer of the device directly, or get stuck in the filter holes, causing the filter holes to become clogged, which seriously affects the filtration effect and normal operation of the dust removal device. Utility Model Content

[0004] In order to solve the problem of sand and gravel clogging during the filtration of the aforementioned blasting dust removal device, this application provides a blasting dust removal device.

[0005] The blasting dust removal device provided in this application adopts the following technical solution:

[0006] A dust removal device for blasting dust includes a filter box. An air inlet is located on one side of the filter box, and an exhaust port is fixedly connected to the top of the filter box. A water supply port is fixedly connected to one side of the filter box, and a water tank is fixedly connected to the other side of the filter box. A baffle is fixedly connected to the inner wall of the filter box, located at the top of the air inlet. A bending block is fixedly connected to the bottom of the baffle. A guide block is located on one side of the bending block. An arc-shaped baffle is fixedly connected to the bend of the baffle. A mounting frame is located at the top of the arc-shaped baffle. A first blocking block is fixedly connected inside the mounting frame. A second blocking block is located on one side of the first blocking block and is fixed inside the mounting frame. An extension baffle is fixedly connected to the bend of the first blocking block near the second blocking block. Multiple water mist nozzles are installed inside the filter box.

[0007] Preferably, the bottom of the filter box is provided with a water storage layer, the bottom of the guide block extends below the water surface of the water storage layer, and its immersion depth is 3-5 cm. The bottom of the bending block is 3 cm away from the water storage layer.

[0008] Preferably, the first blocking block and the second blocking block have the same shape, both being S-shaped, and the mounting frame contains multiple sets of the first blocking block and the second blocking block.

[0009] Preferably, there is a gap between the end of the extended baffle and the second blocking block, and the gap width in this area is 8 mm.

[0010] Preferably, the inner sidewall of the filter box is fixedly connected to both sides of the limiting groove, the limiting groove is slidably connected to the limiting block, a filter plate is fixedly connected to one side of the limiting block, an mounting plate is fixedly connected to the front of the filter plate, a sealing gasket is fixedly connected to the side of the mounting plate near the filter box, and an mounting block is fixedly connected to the surface of the mounting plate and threadedly connected to the filter box by bolts.

[0011] Preferably, the filter plate is made of glass fiber composite filter material, and the sealing gasket is made of rubber and fits against the outer wall of the filter box.

[0012] Preferably, a flocculant is added to the water tank 103 at a concentration of 0.1-0.5 WT.

[0013] In summary, this application includes the following beneficial technical effects:

[0014] 1. This blasting dust removal device uses the water surface at the bottom of the filter box, along with baffles, bending blocks, and other components, to initially separate large particles of impurities. Combined with subsequent multi-stage interception, water mist dust suppression, and flocculation sedimentation, it can effectively filter dust during blasting and significantly improve the overall dust removal efficiency.

[0015] 2. The filter plates are bolted on for easy disassembly and cleaning. Their glass fiber composite filter media effectively filters dust and adsorbs moisture. Flocculant is added to the water tank, mixing with the liquid in the filter chamber to cause fine dust particles to agglomerate and settle, facilitating cleaning. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic cross-sectional view of the filter box of this utility model.

[0018] Figure 3 This is a schematic diagram of the blocking block structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the filter plate structure of this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Filter box; 101. Air inlet; 102. Water supply outlet; 103. Water tank; 104. Exhaust outlet; 2. Baffle; 201. Bending block; 202. Guide block; 203. Arc baffle; 3. Mounting frame; 301. First blocking block; 302. Extension baffle; 303. Second blocking block; 304. Water mist nozzle; 4. Mounting plate; 401. Limiting groove; 402. Filter plate; 403. Limiting block; 404. Sealing gasket; 405. Mounting block. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0022] Reference Figure 1-4 This utility model provides a dust removal device for blasting dust, including a filter box 1. An air inlet 101 is provided on one side of the filter box 1, an exhaust port 104 is fixedly connected to the top of the filter box 1, a water supply port 102 is fixedly connected to one side of the filter box 1, and a water tank 103 is fixedly connected to the other side of the filter box 1. A baffle 2 is fixedly connected to the inner wall of the filter box 1, located at the top of the air inlet 101. A bending block 201 is fixedly connected to the bottom of the baffle 2, and a guide is provided on one side of the bending block 201. The guide block 202 and the baffle 2 are fixedly connected to the bend of the arc baffle 203. The top of the arc baffle 203 is provided with a mounting frame 3. The first blocking block 301 is fixedly connected inside the mounting frame 3. The first blocking block 301 is provided with a second blocking block 303 on one side. The second blocking block 303 is fixed inside the mounting frame 3. The bend of the first blocking block 301 near the second blocking block 303 is fixedly connected with an extension baffle 302. Multiple water mist nozzles 304 are installed inside the filter box 1.

[0023] The air inlet 101 on one side of the dust removal device is the channel for the dust-laden airflow generated by the explosion to enter the device. The dust-laden airflow enters the filter box 1 through the air inlet 101 for filtration. The exhaust port 104 at the top of the filter box 1 is connected to an external exhaust fan. When the exhaust fan is working, it will create a negative pressure inside the filter box 1, and guide the dust-laden airflow from the air inlet 101 through the negative pressure.

[0024] After the impurities generated by the explosion enter the filter box 1 through the air inlet 101, they first hit the baffle 2. Since the baffle 2 is located at the top of the air inlet 101, it forces the airflow to deflect downwards. After being guided by the baffle 2, the dust particles carried by the airflow pass between the bending block 201 and the water surface under the influence of the airflow. Large impurities are separated and fall into the water due to their large mass. Then the airflow flows through the channel formed by the baffle 2 and the guide block 202. At this time, the fine particles that have completed the initial filtration will hit the arc baffle 203 and be intercepted again. After the airflow enters the mounting frame 3, it will first encounter the first blocking block 301. The first blocking block 301 will block the airflow and force the airflow to change its flow direction. As the airflow direction changes, the dust particles carried within continue to move forward due to inertia, thus colliding with the first blocking block 301. Some particles adhere to the surface of the first blocking block 301 and are intercepted. The extended baffle 302 extends into the airflow channel between the first blocking block 301 and the second blocking block 303. When the airflow passes between the first blocking block 301 and the second blocking block 303, the extended baffle 302 increases the contact area with the airflow, forming a finer barrier against impurities in the airflow. At this time, the water mist sprayed from the water mist nozzle 304 mixes with the particulate impurities. The particulate impurities increase in weight due to adsorbing the water mist, and then fall away from the airflow.

[0025] In a preferred embodiment, the bottom of the filter box 1 is provided with a water storage layer, the bottom of the guide block 202 extends below the water surface of the water storage layer, and its immersion depth is 3-5 cm. The bottom of the bending block 201 is 3 cm away from the water storage layer.

[0026] The bottom of the bending block 201 is 3 cm away from the water storage layer, which avoids excessive resistance caused by direct contact between the bending block 201 and the water surface, thus preventing air circulation. The guide block 202 is immersed in the water surface for 3-5 cm to prevent the airflow from not flowing in the preset direction.

[0027] In a preferred embodiment, the first blocking block 301 and the second blocking block 303 have the same shape, both being S-shaped structures. Multiple sets of the first blocking block 301 and the second blocking block 303 are installed inside the mounting frame 3. The S-shaped blocking blocks can effectively change the airflow direction and intercept dust using inertia.

[0028] In a preferred embodiment, there is a gap between the end of the extended baffle 302 and the second blocking block 303, with a gap width of 8 mm. Dust passing through this gap is obstructed by the extended baffle 302 and the second blocking block 303, further increasing the likelihood of dust being filtered. Simultaneously, this gap ensures smooth airflow, preventing excessive airflow resistance due to an excessively small gap from affecting the normal operation of the equipment.

[0029] In a preferred embodiment, limiting grooves 401 are fixedly connected to both sides of the inner wall of the filter box 1. Limiting blocks 403 are slidably connected inside the limiting grooves 401. A filter plate 402 is fixedly connected to one side of the limiting block 403. A mounting plate 4 is fixedly connected to the front of the filter plate 402. A sealing gasket 404 is fixedly connected to the side of the mounting plate 4 closest to the filter box 1. A mounting block 405 is fixedly connected to the surface of the mounting plate 4 and threadedly connected to the filter box 1 with bolts. The airflow, after passing through multiple stages of filtration, finally reaches the filter plate 402. The filter plate 402 is slidably connected to the limiting grooves 401 in the inner wall of the filter box 1 via the limiting blocks 403. This design facilitates the installation and removal of the filter plate 402. When the airflow passes through the filter plate 402, the filter plate 402 performs final filtration and interception of any remaining dust in the airflow. The mounting plate 4 on the front of the filter plate 402 is connected to the filter box 1 by bolts. At the same time, the sealing gasket 404 fixedly connected to the side of the mounting plate 4 near the filter box 1 can fill the tiny gap between the mounting plate 4 and the filter box 1, preventing airflow from bypassing the filter plate 402 and ensuring that all airflow passes through the filter plate 402 for filtration. The mounting block 405 is connected to the filter box 1 by bolts, which can facilitate cleaning or disassembly of the filter plate 402.

[0030] In a preferred embodiment, the filter plate 402 is made of glass fiber composite filter media, and the sealing gasket 404 is made of rubber and fits against the outer wall of the filter box 1. The filter plate 402 uses glass fiber composite filter media, which has excellent filtration performance. When airflow passes through the filter plate 402, it can effectively filter dust in the airflow. Simultaneously, the glass fiber composite filter media can also adsorb and filter moisture in the airflow to a certain extent.

[0031] In a preferred embodiment, a flocculant is added to the water tank 103 at a concentration of 0.1-0.5 wt%. When the liquid in the water tank 103 mixes with the water or dust-laden liquid in the filter box 1, the flocculant causes the fine dust particles in the water to adsorb and agglomerate, forming larger flocs. These larger flocs, due to their increased weight, gradually settle to the bottom of the water, thus facilitating the separation of dust from the water and preventing the fine dust from re-entering the air.

[0032] The foregoing description of an exemplary embodiment of an explosive dust removal device provided by this disclosure refers to preferred embodiments. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the spirit of this disclosure, and various combinations can be made to the various technical features and structures proposed in this disclosure without exceeding the protection scope of this disclosure, which is determined by the appended claims.

Claims

1. A dust removal device for blasting dust, comprising a filter box (1), characterized in that: The filter box (1) has an air inlet (101) on one side, an exhaust port (104) fixedly connected to the top of the filter box (1), a water supply port (102) fixedly connected to one side of the filter box (1), a water tank (103) fixedly connected to the other side of the filter box (1), a baffle (2) fixedly connected to the inner wall of the filter box (1), the baffle (2) being located at the top of the air inlet (101), a bending block (201) fixedly connected to the bottom of the baffle (2), a guide block (202) being provided on one side of the bending block (201), and the baffle ( 2) A circular arc baffle (203) is fixedly connected at the bend. The top of the circular arc baffle (203) is provided with an installation frame (3). A first blocking block (301) is fixedly connected inside the installation frame (3). A second blocking block (303) is provided on one side of the first blocking block (301). The second blocking block (303) is fixed inside the installation frame (3). An extension baffle (302) is fixedly connected at the bend of the first blocking block (301) near the second blocking block (303). Multiple water mist nozzles (304) are installed inside the filter box (1).

2. The blasting dust removal device according to claim 1, characterized in that: The bottom of the filter box (1) is provided with a water storage layer. The bottom of the guide block (202) extends below the water surface of the water storage layer, with an immersion depth of 3-5 cm. The bottom of the bending block (201) is 3 cm away from the water storage layer.

3. The blasting dust removal device according to claim 1, characterized in that: The first blocking block (301) and the second blocking block (303) have the same shape, both being S-shaped structures. The mounting frame (3) contains multiple sets of the first blocking block (301) and the second blocking block (303).

4. The blasting dust removal device according to claim 1, characterized in that: The filter box (1) has a fixed connection of a limiting groove (401) on both sides of its inner wall. The limiting groove (401) has a sliding connection of a limiting block (403). A filter plate (402) is fixedly connected to one side of the limiting block (403). An installation plate (4) is fixedly connected to the front of the filter plate (402). A sealing gasket (404) is fixedly connected to the side of the installation plate (4) near the filter box (1). An installation block (405) is fixedly connected to the surface of the installation plate (4) and is threadedly connected to the filter box (1) by bolts.

5. The blasting dust removal device according to claim 4, characterized in that: The filter plate (402) is made of glass fiber composite filter material, and the sealing gasket (404) is attached to the outer wall of the filter box (1) and is made of rubber.

6. The blasting dust removal device according to claim 1, characterized in that: The water tank (103) contains a flocculant with a concentration of 0.1-0.5 WT.

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