Safe dust collection device

Abstract

The utility model discloses a safe dust collecting device, which relates to the technical field of brominated epoxy resin production and comprises a filling hopper and a dust collecting box, an air extractor is fixedly mounted at the top end of the filling hopper, the air extractor is communicated with an exhaust pipe penetrating into the dust collecting box, and a dust collecting component for collecting dust above the filling hopper is arranged on the outer side of the filling hopper; the dust collecting assembly comprises a fixed mounting ring fixedly mounted on the outer side wall of the top end of the filling hopper, a dust collecting main pipe is fixedly mounted at the top end of the fixed mounting ring, dust collecting holes are uniformly formed in the dust collecting main pipe at equal intervals, the dust collecting box communicates with a dust collecting pipe, and the other end of the dust collecting pipe penetrates through the fixed mounting ring into the dust collecting main pipe. By arranging the dust collecting assembly, when the air exhauster works, negative pressure is formed in the dust collecting box, dust on the filling hopper enters the dust collecting main pipe from the dust collecting holes and then enters the dust collecting box through the dust collecting pipe, dust airflow impacts the arc-shaped partition plate, and the speed of the dust airflow is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of brominated epoxy resin production, in particular to a safe dust collecting device. Background Art

[0002] Brominated epoxy resin is an important flame retardant material. It has been widely used in many fields such as electronics, aerospace, automobiles, and construction due to its excellent heat resistance, flame retardancy, and excellent mechanical properties. However, in the production process of brominated epoxy resin, from raw material processing, reaction synthesis to finished product post-processing, a large amount of dust and particulate pollutants may be generated. These dusts will not only cause serious pollution to the production environment and affect the health of employees, but also pose a safety hazard of causing fire and explosion, and do not comply with increasingly stringent environmental protection policies and production safety regulations.

[0003] In the traditional brominated epoxy resin production process, steps such as raw material grinding, mixing, and reaction will cause tetrabromobisphenol A, epoxy resin powder, and other chemical additives to generate dust. These dust particles are small in size and easily suspended in the air. Long-term accumulation not only increases the difficulty of cleaning inside the factory, but also causes wear and tear on production equipment, affecting the service life and work efficiency of the equipment.

[0004] Application number: CN202122439389.8 discloses a dust removal device for epoxy resin production, including a dust removal body, an air intake pipe, an exhaust pipe, an injection pipe, a fixed plate, a dust suction plate, an activated carbon adsorption plate, a high-pressure water pump, a connecting pipe, two groups of fixed blocks, a high-pressure nozzle, a water wheel, a rotating shaft, two groups of fixed rings and two groups of cleaning brushes. A chamber is arranged inside the dust removal body, the air intake pipe is fixed at the middle part of the left end of the dust removal body, the exhaust pipe is fixed at the upper part of the right end of the dust removal body, and the injection pipe is fixed at the bottom part of the left end of the dust removal body. Control valves are arranged on the air intake pipe, the exhaust pipe and the injection pipe, and the fixed plate is fixed in the chamber of the dust removal body.

[0005] However, the above device does not take into account that when adding materials, the raw materials will generate a lot of dust. Long-term accumulation not only increases the difficulty of cleaning inside the factory, but also causes wear and tear on production equipment, affecting the service life and work efficiency of the equipment, and even affecting the health of the staff. Therefore, it is necessary to propose a safe dust collection device. Utility Model Content

[0006] The utility model aims to solve the shortcomings in the prior art and proposes a safe dust collecting device.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A safe dust collecting device, comprising a filling hopper and a dust collecting box, wherein an air extractor is fixedly mounted on the top of the dust collecting box, the air extractor is connected to an air extraction pipe that runs through the dust collecting box, and a dust collecting assembly for collecting dust above the filling hopper is arranged outside the filling hopper;

[0009] The dust collecting assembly includes a fixed mounting ring fixedly mounted on the outer side wall of the top end of the filling hopper, a dust collecting main pipe fixedly mounted on the top end of the fixed mounting ring, dust collecting holes are evenly and equidistantly provided on the dust collecting main pipe, the dust collecting box is connected to a dust collecting pipe, and the other end of the dust collecting pipe passes through the fixed mounting ring to the dust collecting main pipe.

[0010] Preferably, an arc-shaped partition is fixedly installed in the dust collecting box, the inner concave surface of the arc-shaped partition corresponds to the dust collecting pipe, the end of the dust collecting pipe extends below the arc-shaped partition, and a filter assembly for filtering dust is arranged in the dust collecting box;

[0011] It is used to slow down the dust entering the dust collecting box. The external dust enters the dust collecting box through the dust collecting pipe, so that the dust airflow hits the arc partition, slowing down the speed of the dust airflow, which is convenient for dust filtering.

[0012] Preferably, the filter assembly comprises a mounting frame fixedly mounted on the horizontal end of the arc-shaped partition, the outer wall of the mounting frame is fixedly mounted on the inner wall of the dust collecting box, and an elastic filter cloth is fixedly mounted in the mounting frame;

[0013] A shaking rod is fixedly installed at the center of the top of the elastic filter cloth, the shaking rod slides through the top of the dust collecting box, and a plurality of fixed teeth are fixedly installed on the outer side wall of the shaking rod;

[0014] The fixed latch teeth are arranged above the dust collecting box, a driving motor is fixedly installed on the top of the dust collecting box, an output shaft of the driving motor is coaxially fixedly connected with a sector gear, and the sector gear is meshed with the fixed latch teeth;

[0015] It is used to filter the dust airflow and prevent dust from accumulating on the elastic filter cloth. The dust airflow in the exhaust chamber is filtered by the elastic filter cloth, and the dust is blocked by the elastic filter cloth. The driving motor drives the fan gear to rotate, and the shaking rod is driven to move upward under the cooperation of the fan gear and the fixed tooth. After the fan gear is disengaged from the fixed tooth, it moves downward under the action of its own weight. The up and down movement of the shaking rod drives the center of the elastic filter cloth to shake up and down, so that the dust on the elastic filter cloth is shaken off.

[0016] Preferably, the arc-shaped partition plate and the mounting frame divide the dust collecting box into a lower dust collecting chamber and an upper air extraction chamber, and the dust collecting chamber is connected to the air extraction chamber only through the elastic filter cloth.

[0017] The utility model has the following beneficial effects:

[0018] 1. By setting up the dust collection component, when the vacuum pump is working, the dust collection box forms a negative pressure, so that the dust on the filling hopper enters the dust collection main pipe from the dust collection hole, and then enters the dust collection box through the dust collection pipe. The dust airflow hits the arc partition, slowing down the speed of the dust airflow, facilitating the filtering of dust and preventing dust from scattering inside the factory, ensuring production safety while ensuring the health of production personnel.

[0019] 2. By setting up the filter assembly, the dust airflow in the exhaust chamber is filtered by the elastic filter cloth, the dust is blocked by the elastic filter cloth, and the driving motor drives the fan gear to rotate, and the shaking rod is driven to move upward under the cooperation of the fan gear and the fixed tooth. After the fan gear is disengaged from the fixed tooth, it moves downward under the action of its own weight. The up and down movement of the shaking rod drives the center of the elastic filter cloth to shake up and down, and the dust on the elastic filter cloth is shaken off to avoid dust accumulation on the elastic filter cloth. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the external structure of a safe dust collection device proposed by the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the dust collecting assembly of the utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the dust collecting box of the utility model;

[0023] Figure 4 For this utility model Figure 1 A magnified view of the structure at A.

[0024] In the figure: 1. filling hopper; 2. dust collecting box; 21. dust collecting chamber; 22. exhaust chamber; 3. exhaust fan; 4. exhaust pipe; 5. dust collecting assembly; 51. fixed mounting ring; 52. dust collecting main pipe; 53. dust collecting hole; 54. dust collecting pipe; 6. arc partition; 7. filter assembly; 71. mounting frame; 72. elastic filter cloth; 73. shaking rod; 74. fixed clamping gear; 75. driving motor; 76. fan gear. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0027] Reference Figure 1-4 A safe dust collecting device comprises a filling hopper 1 and a dust collecting box 2, an air extractor 3 is fixedly mounted on the top of the dust collecting box 2, the air extractor 3 is connected to an air extraction pipe 4 that runs through the dust collecting box 2, and a dust collecting component 5 for collecting dust above the filling hopper 1 is arranged outside the filling hopper 1;

[0028] The dust collecting assembly 5 includes a fixed mounting ring 51 fixedly mounted on the outer side wall of the top end of the filling hopper 1, a dust collecting main pipe 52 is fixedly mounted on the top end of the fixed mounting ring 51, dust collecting holes 53 are evenly and equidistantly provided on the dust collecting main pipe 52, the dust collecting box 2 is connected to a dust collecting pipe 54, and the other end of the dust collecting pipe 54 passes through the fixed mounting ring 51 to the dust collecting main pipe 52.

[0029] When the air exhauster 3 is working, negative pressure is formed in the dust collecting box 2, so that the dust on the filling hopper 1 enters the dust collecting main pipe 52 through the dust collecting hole 53, and then enters the dust collecting box 2 through the dust collecting pipe 54.

[0030] An arc-shaped partition plate 6 is fixedly installed in the dust collecting box 2, and the inner concave surface of the arc-shaped partition plate 6 corresponds to the dust collecting pipe 54. The end of the dust collecting pipe 54 extends to the bottom of the arc-shaped partition plate 6. A filter assembly 7 for filtering dust is arranged in the dust collecting box 2.

[0031] The filter assembly 7 includes a mounting frame 71 fixedly mounted on the horizontal end of the arc-shaped partition plate 6 , the outer wall of the mounting frame 71 is fixedly mounted on the inner wall of the dust collecting box 2 , and an elastic filter cloth 72 is fixedly mounted in the mounting frame 71 .

[0032] A shaking rod 73 is fixedly installed at the center of the top of the elastic filter cloth 72. The shaking rod 73 slides through the top of the dust collecting box 2. A plurality of fixed teeth 74 are fixedly installed on the outer wall of the shaking rod 73.

[0033] The fixed latching teeth 74 are arranged above the dust collecting box 2 . A driving motor 75 is fixedly installed on the top of the dust collecting box 2 . The output shaft of the driving motor 75 is coaxially fixedly connected with a sector gear 76 . The sector gear 76 meshes with the fixed latching teeth 74 .

[0034] The arc partition plate 6 and the mounting frame 71 divide the dust collecting box 2 into a lower dust collecting chamber 21 and an upper air extraction chamber 22 . The dust collecting chamber 21 is connected to the air extraction chamber 22 only through the elastic filter cloth 72 .

[0035] In the present invention, when the exhaust fan 3 is working, the dust collecting box 2 forms a negative pressure, so that the dust on the filling hopper 1 enters the dust collecting main pipe 52 from the dust collecting hole 53, and then enters the dust collecting box 2 through the dust collecting pipe 54. The dust airflow hits the arc partition plate 6, slowing down the speed of the dust airflow, avoiding the dust from being scattered inside the factory, ensuring production safety and the health of production personnel. The dust airflow in the suction chamber 22 is filtered by the elastic filter cloth 72, and the dust is blocked by the elastic filter cloth 72. The driving motor 75 drives the fan gear 76 to rotate, and the fan gear 76 and the fixed latch tooth 74 cooperate to drive the shaking rod 73 to move upward. After the fan gear 76 is separated from the fixed latch tooth 74, the shaking rod 73 moves downward under the action of its own weight. The up and down movement of the shaking rod 73 drives the center of the elastic filter cloth 72 to shake up and down, and the dust on the elastic filter cloth 72 is shaken off, avoiding dust accumulation on the elastic filter cloth 72.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A safe dust collection device, comprising a filling hopper (1) and a dust collection box (2), characterized in that: An air extractor (3) is fixedly mounted on the top of the dust collecting box (2); the air extractor (3) is connected to an air extraction pipe (4) that penetrates into the dust collecting box (2); and a dust collecting component (5) for collecting dust above the filling hopper (1) is arranged outside the filling hopper (1); The dust collecting assembly (5) comprises a fixed mounting ring (51) fixedly mounted on the outer side wall of the top end of the filling hopper (1); a dust collecting main pipe (52) is fixedly mounted on the top end of the fixed mounting ring (51); dust collecting holes (53) are evenly and equidistantly formed on the dust collecting main pipe (52); the dust collecting box (2) is connected to a dust collecting pipe (54); the other end of the dust collecting pipe (54) passes through the fixed mounting ring (51) and reaches the inside of the dust collecting main pipe (52).

2. A safe dust collection device according to claim 1, characterized in that: An arc-shaped partition (6) is fixedly installed in the dust collecting box (2), the inner concave surface of the arc-shaped partition (6) corresponds to the dust collecting pipe (54), the end of the dust collecting pipe (54) extends below the arc-shaped partition (6), and a filter assembly (7) for filtering dust is arranged in the dust collecting box (2).

3. A safe dust collection device according to claim 2, characterized in that: The filter assembly (7) comprises a mounting frame (71) fixedly mounted on the horizontal end of the arc-shaped partition plate (6); the outer wall of the mounting frame (71) is fixedly mounted on the inner wall of the dust collecting box (2); and an elastic filter cloth (72) is fixedly mounted in the mounting frame (71).

4. A safe dust collection device according to claim 3, characterized in that: A shaking rod (73) is fixedly mounted at the center of the top end of the elastic filter cloth (72); the shaking rod (73) slides through the top end of the dust collecting box (2); and a plurality of fixed latch teeth (74) are fixedly mounted on the outer side wall of the shaking rod (73).

5. A safe dust collection device according to claim 4, characterized in that: The fixed latch teeth (74) are arranged above the dust collecting box (2); a driving motor (75) is fixedly mounted on the top of the dust collecting box (2); an output shaft of the driving motor (75) is coaxially fixedly connected to a sector gear (76); and the sector gear (76) is meshed with the fixed latch teeth (74).

6. A safe dust collecting device according to claim 2, characterized in that: The arc-shaped partition plate (6) and the mounting frame (71) separate the dust collecting box (2) into a lower dust collecting chamber (21) and an upper air extraction chamber (22); the dust collecting chamber (21) and the air extraction chamber (22) are connected only through the elastic filter cloth (72).

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