Explosion-proof dust collector

Abstract

The utility model discloses an explosion -proof dust remover relates to dust remover technical field, including first dust removal case and second dust removal case and gravity block, one side outer wall of first dust removal case is fixedly connected with second dust removal case, be equipped with air outlet in first dust removal case top, the upper end outer wall of first dust removal case is equipped with feed hole and is fixedly connected with filter screen bag, the lower surface fixedly connected with connecting block of filter screen bag, the gravity block is equipped with under connecting block, the inner wall rotationally connected with rotating link of first dust removal case, to filter screen bag real -time vibration dust cleaning, prevent filter screen blockage, when filter block rotates, spring promotes filter block and clean block and abuts, and shake down filter block surface impurity, guarantee filter efficiency long -term stability, first dust removal case and collection box all adopt hinged box door design, open the box door and can quick replacement filter screen bag, filter block and other easily damaged parts, need not to disassemble equipment main part, collection box is independently arranged, and can clean dust by opening regularly.

Description

Technical Field

[0001] This utility model relates to the field of dust collector technology, specifically to an explosion-proof dust collector. Background Technology

[0002] Explosion-proof dust collectors are safety devices specifically designed for explosive dust environments. By capturing and filtering dust, controlling its concentration, and incorporating explosion-proof devices, they prevent dust from reaching explosive conditions or rapidly releasing pressure in the event of an accident, thereby ensuring the safety of the industrial environment. They are widely used in industries such as chemical, pharmaceutical, metal processing, and wood processing where flammable dust exists, and play a crucial role, especially in scenarios where dust concentrations are prone to exceed standards and ignition risks are high.

[0003] According to a Chinese application number CN202420852054.X published on February 25, 2025, an environmentally friendly dust treatment device includes a treatment box, the interior of which is equipped with a filter mechanism for treating dust, a cleaning box is fixedly connected to the back of the treatment box, the surface of the cleaning box is equipped with a dust removal component for cleaning the filter mechanism, and the surface of the cleaning box is also equipped with a dust suction mechanism.

[0004] The aforementioned dust treatment device uses a single filtration mechanism design. This device does not have a pre-treatment filtration stage, which causes high-concentration dust to directly impact the filter media, accelerating filter media clogging and aging, and reducing the filtration effect. Therefore, it is necessary to propose an explosion-proof dust collector. Utility Model Content

[0005] The purpose of this invention is to provide an explosion-proof dust collector to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an explosion-proof dust collector, comprising a first dust collection box, a second dust collection box, and a gravity block, wherein the second dust collection box is fixedly connected to one side outer wall of the first dust collection box, and an air outlet is provided above the first dust collection box;

[0007] The upper outer wall of the first dust collector has a feed hole and a filter bag fixedly connected thereto. A connecting block is fixedly connected to the lower surface of the filter bag, and a gravity block is provided below the connecting block. A rotating rod is rotatably connected to the inner wall of the first dust collector. A top block is slidably connected to the outer wall of the rotating rod below the filter bag. A sliding cavity is opened through the inside of the top block. A protrusion is fixedly connected to the outer wall of the rotating rod at the position of the sliding cavity. One end of the rotating rod extends into the second dust collector through a bearing and is fixedly connected to several cleaning blocks in a circumferential shape. A sliding groove is opened through the outer wall of one end of the cleaning block. A filter block is slidably connected to the inner wall of the sliding groove. The lower end of the second dust collector has a discharge hole and a collection box is fixedly connected thereto.

[0008] Preferably, the cleaning block has a cavity extending through its interior, and a T-shaped block is slidably connected to the inner wall of the cavity. One end of the T-shaped block extends into the groove and is fixedly connected to the filter block, while the other end of the T-shaped block is rotatably connected to a roller. The roller extends out of the cleaning block and abuts against the second dust collection box.

[0009] Preferably, one end of the chute has a groove on its inner wall and a spring is fixedly connected thereto, and the other end of the spring is fixedly connected to the filter block.

[0010] Preferably, the outer wall of the gravity block is symmetrically perforated with pin holes, which extend into the connecting block and are riveted to and fixed with pins.

[0011] Preferably, a drive motor is fixedly connected to one side of the outer wall of the first dust collection box, and the output end of the drive motor is fixedly connected to the rotating rod through a coupling.

[0012] Preferably, both the first dust collector and the collection box have holes on one side of their outer walls and are hinged to a door.

[0013] Preferably, one end of the outer wall of the second dust collector is provided with a connecting hole and a connecting pipe is fixedly connected thereto. The connecting pipe is fixedly connected to the feed hole, and one end of the second dust collector is provided with an air inlet.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: Dust-laden airflow enters the second dust collection box, the drive motor rotates the rotating rod, and the rotating rod drives the filter block to perform preliminary filtration of the dust-laden airflow. The filtered airflow then enters the first dust collection box and undergoes secondary filtration through the filter screen. This dual interception effectively captures dust particles of different sizes, reducing the dust concentration at the outlet. Supported by springs and rollers, the filter block can adaptively conform to the inner wall of the second dust collection box as the cleaning block rotates, preventing filtration gaps caused by minor deformation of the box body. When the rotating rod rotates, it drives the top block to move up and down reciprocally, vibrating and cleaning the filter screen in real time to prevent clogging. When the filter block rotates, the spring pushes the filter block against the cleaning block, shaking off impurities from the filter block surface, ensuring long-term stable filtration efficiency. Both the first dust collection box and the collection box adopt a hinged door design, allowing for quick replacement of easily damaged parts such as the filter screen and filter block without disassembling the main body of the equipment. The collection box is independently set up and can be opened periodically for dust cleaning. Attached Figure Description

[0015] Figure 1 This is a front view structural diagram of the present utility model;

[0016] Figure 2 This is a cross-sectional view of the first dust collector box of this utility model;

[0017] Figure 3 This is a schematic diagram of the convex rotation structure of this utility model;

[0018] Figure 4 This is a cross-sectional view of the second dust collector of this utility model;

[0019] Figure 5 This is a schematic diagram of the installation position of the cleaning block according to this utility model.

[0020] In the diagram: 1. First dust collection box; 2. Second dust collection box; 3. Gravity block; 4. Filter bag; 5. Connecting block; 6. Rotating rod; 7. Top block; 8. Protrusion; 9. Cleaning block; 10. Filter block; 11. Collection box; 12. T-shaped block; 13. Roller; 14. Spring; 15. Pin; 16. Drive motor; 17. Box door; 18. Connecting pipe. Detailed Implementation

[0021] Please see Figure 1-5 This utility model provides a technical solution:

[0022] Example 1: An explosion-proof dust collector includes a first dust collection box 1, a second dust collection box 2, and a gravity block 3. The second dust collection box 2 is fixedly connected to one side of the outer wall of the first dust collection box 1, and an air outlet is provided above the first dust collection box 1.

[0023] The upper outer wall of the first dust collector 1 has a feed hole and a filter bag 4 is fixedly connected thereto. A connecting block 5 is fixedly connected to the lower surface of the filter bag 4. A gravity block 3 is located below the connecting block 5. A rotating rod 6 is rotatably connected to the inner wall of the first dust collector 1. A top block 7 is slidably connected to the outer wall of the rotating rod 6 below the filter bag 4. A sliding cavity is formed through the interior of the top block 7. A protrusion 8 is fixedly connected to the outer wall of the rotating rod 6 at the position of the sliding cavity. One end of the rotating rod 6 extends into the second dust collector 2 through a bearing and is fixedly connected to several cleaning blocks 9 in a circumferential shape. A sliding groove is formed through the outer wall of one end of the cleaning block 9. The inner wall of the sliding groove is slidably connected to... The first dust collector 1 has a filter block 10 attached. The lower end of the second dust collector 2 has a discharge hole and a collection box 11 is fixedly connected to it. The rotating rod 6, top block 7, protrusion 8, T-shaped block 12 and other components are made of aluminum bronze. The drive motor 16 is an explosion-proof motor. The filter bag 4 is made of stainless steel fiber + PTFE coating for anti-static purposes. There is a conductive foam gasket between the gravity block 3 and the connecting block 5. The edge of the box door 17 is fitted with a high-pressure resistant silicone rubber sealing ring. A conical ash hopper is provided below the first dust collector 1. The fan is installed at the air outlet of the first dust collector 1 and operates under negative pressure. Limiting grooves are provided on both sides of the slide groove. The filter block 10 extends into the limiting groove to limit the filter block 10.

[0024] During use, the first dust collector 1 and the second dust collector 2 are fixed to the concrete foundation of the workshop floor using the pre-set anchor bolts at the bottom. The two collectors should be kept at a certain distance to ensure no significant vibration during operation. Simultaneously, check the sealing of the connection between the air outlet at the top of the first dust collector 1 and the main exhaust pipe of the workshop. Use high-temperature resistant and explosion-proof sealing rings to fill the gaps and prevent air leakage. At the feed inlet at the top of the first dust collector 1, fix the filter bag 4 to the housing with bolts. The filter bag 4 is made of 304 stainless steel with a mesh size of 50μm, possessing corrosion resistance and explosion-proof properties. The gravity block 3 is riveted to the connecting block 5 on the lower surface of the filter bag 4 using pins 15. The pins 15 are made of high-strength steel. Made of high-strength alloy material, the gravity block 3 stably pulls down the filter bag 4 during equipment operation, preventing the filter bag from deforming due to airflow impact. A rotating rod 6 is installed in the bearing seat preset on the inner wall of the first dust collector 1. One end of the rotating rod 6 extends into the second dust collector 2, and four cleaning blocks 9 are fixed around the outer wall of the extension section. The cleaning blocks 9 are evenly distributed. A filter block 10 is embedded in the groove of each cleaning block 9. The filter block 10 is made of honeycomb ceramic filter material. At the same time, one end of the T-shaped block 12 is fixed to the filter block 10, and the roller 13 at the other end extends out of the cleaning block 9, ensuring that the roller 13 is tightly fitted to the inner wall of the second dust collector 2. The spring 14 is naturally compressed to provide continuous elasticity for the filter block 10.

[0025] Start the drive motor 16, which drives the rotating rod 6 to rotate. The protrusion 8 on the rotating rod 6 slides in the sliding cavity opened in the top block 7. The protrusion 8 pushes the top block 7 to move up and down. When the top block 7 moves upward, it directly contacts the bottom edge of the filter bag 4. By slightly pushing, the filter bag 4 moves upward. When the top block 7 moves downward, the gravity block 3 pulls down the connecting block 5 and the filter bag 4 by its own weight, so that the filter bag 4 can vibrate up and down to clean the dust and prevent the filter bag 4 from clogging. At the same time, the rotating rod 6 drives the cleaning block 9 and the filter block 10 to rotate in the second dust collector 2. The spring 14 pushes the roller 13 to fit against the inner wall of the second dust collector 2. The filter block 10 is used to filter the incoming dust-laden airflow. The dust-laden airflow enters from the air inlet of the second dust collector 2. After being initially filtered by the filter block 10, it is transported to the feed hole of the first dust collector 1 through the connecting pipe 18. It is then filtered a second time by the filter bag 4. The filtered clean airflow is discharged from the air outlet of the first dust collector 1, and the dust falls into the collection box 11.

[0026] After the filter block 10 filters the dust-laden airflow, impurities adhere to the surface of the filter block 10. When the filter block 10 rotates to the bottom of the second dust collection box 2, the roller 13 separates from the second dust collection box 2, and the spring 14 pushes the roller 13 out of the cleaning block 9. At the same time, the T-shaped block 12 pushes the filter block 10 to abut against the cleaning block 9. The impact force of 'squeezing-rebounding' shakes off the impurities on the surface of the filter block 10, which can open the box door 17 to collect the impurities in the collection box 11.

[0027] Core components of the equipment, such as the rotating rod 6, top block 7, and T-shaped block 12, are all made of aluminum bronze, which has non-sparking properties and can prevent sparks from friction between components that could cause an explosion. The filter bag 4 is made of stainless steel fiber with a PTFE coating, which is anti-static and prevents dust accumulation from generating static charge. At the same time, the conductive foam gasket between the gravity block 3 and the connecting block 5 can conduct static electricity in real time, further reducing the risk of static explosion. The edge of the cabinet door 17 is equipped with a high-pressure resistant silicone rubber sealing ring. The equipment's sealing design can prevent the leakage of flammable and explosive dust or gas and avoid contact with external fire sources. The drive motor 16 is an explosion-proof motor that meets the electrical standards for high-risk environments, eliminating the potential for electrical sparks from the source.

[0028] Example 2: The technical solutions in this example that differ from Example 1 include;

[0029] The cleaning block 9 has a cavity extending through its interior. A T-shaped block 12 is slidably connected to the inner wall of the cavity. One end of the T-shaped block 12 extends into the slide groove and is fixedly connected to the filter block 10. The other end of the T-shaped block 12 is rotatably connected to a roller 13. The roller 13 extends out of the cleaning block 9 and abuts against the second dust collection box 2, facilitating the use of the roller 13 to drive the T-shaped block 12 to compress the spring 14. One end of the slide groove has a groove on its inner wall and is fixedly connected to the spring 14. The other end of the spring 14 is fixedly connected to the filter block 10, facilitating the use of the spring 14 to push the roller 13 against the inner wall of the second dust collection box 2. The outer wall of the gravity block 3 has symmetrically shaped pin holes extending through it. The pin holes extend into the connecting block 5 and are riveted to and fixed with pins 15, facilitating... The gravity block 3 is connected to the connecting block 5 using pin 15. A drive motor 16 is fixedly connected to one side of the outer wall of the first dust collector 1. The output end of the drive motor 16 is fixedly connected to the rotating rod 6 through a coupling, so that the drive motor 16 can drive the rotating rod 6 to rotate. Both the first dust collector 1 and the collection box 11 have holes on one side of their outer walls and are hinged to a door 17, so that the door 17 can be opened to collect the impurities in the first dust collector 1 and the collection box 11. The outer wall of one end of the second dust collector 2 has a connecting hole and a connecting pipe 18 is fixedly connected to it. The connecting pipe 18 is fixedly connected to the feed hole. One end of the second dust collector 2 has an air inlet hole, so that the second dust collector 2 can be connected to the connecting pipe 18.

Claims

1. An explosion-proof dust collector, comprising a first dust collector (1) and a second dust collector (2) and a gravity block (3), wherein the second dust collector (2) is fixedly connected to one side of the outer wall of the first dust collector (1), and an air outlet is provided above the first dust collector (1); Its features are, The upper outer wall of the first dust collector (1) is provided with a feed hole and a filter bag (4) is fixedly connected thereto. A connecting block (5) is fixedly connected to the lower surface of the filter bag (4). A gravity block (3) is provided below the connecting block (5). A rotating rod (6) is rotatably connected to the inner wall of the first dust collector (1). A top block (7) is slidably connected to the outer wall of the rotating rod (6) below the filter bag (4). A sliding cavity is opened through the inside of the top block (7). A protrusion (8) is fixedly connected to the outer wall of the rotating rod (6) at the position of the sliding cavity. One end of the rotating rod (6) extends into the second dust collector (2) through a bearing and is fixedly connected to several cleaning blocks (9) in a circumferential shape. A sliding groove is opened through the outer wall of one end of the cleaning block (9). A filter block (10) is slidably connected to the inner wall of the sliding groove. A discharge hole is provided at the lower end of the second dust collector (2) and a collection box (11) is fixedly connected thereto.

2. The explosion-proof dust collector according to claim 1, characterized in that: The cleaning block (9) has a cavity through which a T-shaped block (12) is slidably connected to the inner wall of the cavity. One end of the T-shaped block (12) passes through the groove and is fixedly connected to the filter block (10). The other end of the T-shaped block (12) is rotatably connected to a roller (13). The roller (13) passes through the outside of the cleaning block (9) and abuts against the second dust collection box (2).

3. The explosion-proof dust collector according to claim 2, characterized in that: The inner wall of one end of the chute is provided with a groove and a spring (14) is fixedly connected thereto. The other end of the spring (14) is fixedly connected to the filter block (10).

4. The explosion-proof dust collector according to claim 1, characterized in that: The outer wall of the gravity block (3) is symmetrically provided with pin holes, which extend through the connecting block (5) and are riveted to and fixed with pins (15).

5. The explosion-proof dust collector according to claim 1, characterized in that: A drive motor (16) is fixedly connected to one side of the outer wall of the first dust collector (1), and the output end of the drive motor (16) is fixedly connected to the rotating rod (6) through a coupling.

6. The explosion-proof dust collector according to claim 1, characterized in that: Both the first dust collector (1) and the collection box (11) have holes on one side of their outer walls and are connected to a door (17) by a hinge.

7. The explosion-proof dust collector according to claim 1, characterized in that: The outer wall of one end of the second dust collector (2) is provided with a connection hole and a connecting pipe (18) is fixedly connected thereto. The connecting pipe (18) is fixedly connected to the feed hole. One end of the second dust collector (2) is provided with an air inlet.

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