Dust deposition prevention device for pulse bag type dust collector

Abstract

The utility model discloses a dust deposition prevention device for a pulse bag type dust collector, and belongs to the technical field of dust collector equipment. The dust deposition prevention device for the pulse bag type dust collector further comprises an air locking shell arranged at the lower end of a dust hopper of the dust collector, two pairs of connecting blocks are arranged between the dust remover ash hopper and the air locking shell; the inner side of the air locking shell is rotationally connected with a pair of sealing plates. Each sealing plate is located on the outer side of the air locking shell and fixedly connected with a ratchet wheel. The outer side of the air locking shell is rotationally connected with a pair of pawls. An elastic sheet is fixedly arranged on the outer side of the air locking shell; the tail end of one pawl on each side abuts against the ratchet wheel on the corresponding side. A torsional spring is arranged between each pawl and the air locking shell; through the arrangement of the ratchet wheel, the air locking shell, the elastic piece and the sealing plates, the impact of high-pressure air generated by the air spraying pipe is matched, the pair of sealing plates are made to rotate inwards, dust is discharged, meanwhile, the ratchet wheel can only rotate in one direction, the dust is prevented from raising to pollute a cloth bag after the pressure borne by the dust is reduced, and the dust cleaning efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of dust collector equipment, and more specifically relates to a dust accumulation prevention device for a pulse bag type dust collector. Background Art

[0002] Bag filter is a dry dust filter. After the filter material has been used for a period of time, a layer of dust accumulates on the surface of the filter bag due to the effects of screening, collision, retention, diffusion, static electricity, etc. This layer of dust is called the primary layer. In the subsequent movement process, the primary layer forms the main filter layer of the filter material. Relying on the effect of the primary layer, the filter material with a larger mesh can also obtain a higher filtration efficiency. As the dust accumulates on the surface of the filter material, the efficiency and resistance of the dust collector increase accordingly. When the pressure difference on both sides of the filter material is large, some fine dust particles attached to the filter material will be squeezed over, causing the efficiency of the dust collector to decrease. In addition, if the resistance of the dust collector is too high, the air volume of the dust removal system will drop significantly. Therefore, after the resistance of the dust collector reaches a certain value, it is necessary to clean the dust in time.

[0003] For example, the air box pulse bag dust collector of patent application number CN201210363776.0 includes a box body and an ash hopper. The upper part of the box body is provided with an electromagnetic pulse valve, a lifting valve and a compressed air pipeline. The interior of the box body is divided into a clean air chamber and a filter chamber by a flower plate. It is characterized in that the filter chamber is divided into a filter chamber and a filter chamber by a smoke channel plug plate. A gas inlet communicating with the filter chamber is provided on one side of the box body, and a gas outlet communicating with the filter chamber is provided on the other side of the box body. The filter chamber is connected to the ash hopper. The dust collector of the present invention reduces the resistance of the box body, the filter chamber and the system to a minimum, realizes secondary dust removal; reduces dust settling in the air inlet pipe as much as possible; and the design of the ash hopper minimizes turbulence and prevents secondary dust. It has the beneficial effects of high dust removal efficiency and extended service life of the filter bag.

[0004] Although the above-mentioned air box pulse bag dust collector can remove dust on the bag, after the dust enters the ash hopper and other structures, the ash hopper cannot be effectively cleaned, resulting in poor cleaning efficiency. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a dust accumulation prevention device for a pulse bag dust collector to improve dust cleaning efficiency.

[0006] The utility model discloses a dust accumulation prevention device for a pulse bag dust collector, comprising a dust collector hopper; a bracket is fixedly arranged on the outer side of the dust collector hopper; a compressed air distribution box is fixedly arranged on the upper end surface of the bracket; the compressed air distribution box is provided with an air distribution box air inlet pipe and an air distribution box air outlet pipe; a pulse valve is fixedly arranged on the lower side of the bracket; the output end of the pulse valve is fixedly connected to an air jet pipe; the air jet pipe passes through the side wall of the dust collector hopper and extends into the inner side of the dust collector hopper; it also includes an air lock shell arranged at the lower end of the dust collector hopper; two pairs of connecting blocks are arranged between the dust collector hopper and the air lock shell; two pairs of fixing bolts are threadedly connected to each of the connecting blocks; the ends of the upper pair of fixing bolts are threadedly connected to the dust collector hopper; the ends of the lower pair of fixing bolts are connected to the lock bolts The wind locking shell is threadedly connected; a pair of sealing plates are rotatably connected to the inner side of the wind locking shell; an inclined block is fixedly arranged at the end of each sealing plate; each inclined block forms an obtuse angle with the sealing plate; each sealing plate is located on the outside of the wind locking shell and is fixedly connected to a ratchet; a pair of pawls are rotatably connected to the outside of the wind locking shell; a spring is fixedly arranged on the outside of the wind locking shell; each of the springs has a thin metal spring part; there is a gap between the thin metal spring part of each spring and the wind locking shell; one end of the pawl on each side is respectively abutted against the ratchet on the corresponding side; the outer end of the pawl is abutted against the lower end of the thin metal spring part of the spring; a torsion spring is arranged between each pawl and the wind locking shell, and the two ends of each of the above torsion springs are respectively fixedly connected to the corresponding pawl and the wind locking shell.

[0007] Preferably, each of the sealing plates and the inclined blocks is made of a high-hardness and lightweight composite resin material.

[0008] Preferably, the air lock housing is made of a stainless steel plate; the inner side of the air lock housing is ground and polished.

[0009] Compared with the prior art, the beneficial effects of the present invention are:

[0010] By setting a pulse valve and a jet pipe, the jet pipe is used to generate high-pressure gas, which can impact the lumps and dust inside the dust collector hopper and make them fall down. The high-pressure gas has a large pressure and impact force, which prevents the jet pipe from blowing out air with insufficient pressure and increasing dust, thereby improving the cleaning efficiency. By setting a ratchet, a wind-locking shell, a shrapnel, and a sealing plate, in conjunction with the impact of the high-pressure air generated by the jet pipe, a pair of sealing plates rotate inward to discharge the dust. At the same time, the ratchet can only rotate in one direction, which prevents the dust from being lifted up and contaminating the bags after the pressure is reduced, thereby improving the cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the inner structure of the utility model;

[0013] Figure 3 It is a schematic diagram of the ratchet connection structure of the utility model.

[0014] Explanation of the numbers in the figure: 10, dust collector hopper; 11, air lock housing; 12, shrapnel; 13, ratchet; 14, compression air distribution box; 15, bracket; 16, air inlet pipe of air distribution box; 17, air outlet pipe of air distribution box; 18, pulse valve; 19, connecting block; 20, fixing bolt; 21, sealing plate; 22, ratchet; 23, jet pipe; 24, inclined block. DETAILED DESCRIPTION

[0015] Specific embodiment 1: Please refer to Figure 1-3A dust accumulation prevention device for a pulse bag dust collector comprises a dust collector ash hopper 10; a bracket 15 is fixedly arranged on the outer side of the dust collector ash hopper 10; a compression air distribution box 14 is fixedly arranged on the upper end surface of the bracket 15; the compression air distribution box 14 is provided with an air distribution box air inlet pipe 16 and an air distribution box air outlet pipe 17; a pulse valve 18 is fixedly arranged on the lower side of the bracket 15; the output end of the pulse valve 18 is fixedly connected to an injection pipe 23; the injection pipe 23 passes through the side wall of the dust collector ash hopper 10 and extends into the inner side of the dust collector ash hopper 10; it also comprises a wind lock shell 11 arranged at the lower end of the dust collector ash hopper 10; the dust collector ash Two pairs of connecting blocks 19 are arranged between the hopper 10 and the air-locking housing 11; two pairs of fixing bolts 20 are threadedly connected to each of the connecting blocks 19; the ends of the pair of fixing bolts 20 on the upper side are threadedly connected to the dust collector hopper 10; the ends of the pair of fixing bolts 20 on the lower side are threadedly connected to the air-locking housing 11; a pair of sealing plates 21 are rotatably connected to the inner side of the air-locking housing 11; an inclined block 24 is fixedly arranged at the end of each sealing plate 21; each inclined block 24 forms an obtuse angle with the sealing plate 21; each sealing plate 21 is located on the outside of the air-locking housing 11 and is fixedly connected to the ratchet 13; the outer side of the air-locking housing 11 is rotatably connected to a pair of sealing plates 21 A pair of pawls 22 are dynamically connected; a spring 12 is fixedly arranged on the outside of the wind-locking housing 11; each of the springs 12 has a thin metal spring part; there is a gap between the thin metal spring part of each spring 12 and the wind-locking housing 11; the end of a pawl 22 on each side abuts against the ratchet 13 on the corresponding side; the outer end of the pawl 22 abuts against the lower end of the thin metal spring part of the spring 12; a torsion spring is arranged between each pawl 22 and the wind-locking housing 11, and the two ends of each torsion spring are fixedly connected to the corresponding pawl 22 and the wind-locking housing 11; by arranging the pulse valve 18 and the spray The air pipe 23 uses the jet pipe 23 to generate high-pressure gas, which can impact the lumps and dust inside the dust collector hopper 10 and make them fall down. The high-pressure gas has a large pressure and impact force, which prevents the jet pipe 23 from blowing out air due to insufficient pressure and increasing dust, thereby improving the cleaning efficiency. By arranging the ratchet 13, the wind-locking shell 11, the shrapnel 12, and the sealing plate 21, the impact of the high-pressure air generated by the jet pipe 23 is coordinated to make a pair of sealing plates 21 rotate inward to discharge the dust. At the same time, the ratchet 13 can only rotate in one direction, which prevents the dust from being lifted up and contaminating the bag after the pressure is reduced, thereby improving the cleaning efficiency.

[0016] See also Figure 2 Each of the sealing plate 21 and the inclined block 24 is made of a high-hardness and lightweight composite resin material.

[0017] See also Figure 1 The wind lock housing 11 is a stainless steel plate; the inner side of the wind lock housing 11 is ground and polished.

[0018] During operation, the dust on the bag of the dust collector falls down and falls into the ash hopper. After falling, the dust falls on the sealing plate 21 and the inclined block 24; the compressed air distribution box 14 is started, and air is sucked in from the air inlet pipe 16 of the air distribution box, and then discharged through the air outlet pipe 17 of the air distribution box. All the air in the air outlet pipe 17 of the air distribution box is transported to the pulse valve 18, and the pulse valve 18 is started. The output end of the pulse valve 18 transports the compressed high-pressure gas to the injection pipe 23, and the compressed high-pressure gas is ejected from the end of the injection pipe 23. The compressed high-pressure gas completely removes the dust and dust agglomerates. The gas is forced downward to prevent dust from being raised due to insufficient pressure; the momentum of the high-pressure gas will push the sealing plate 21 and the inclined block 24, the sealing plate 21 on the left rotates clockwise, and the sealing plate 21 on the right rotates counterclockwise, and the dust on the sealing plate 21 falls during the rotation, and the dust slides from the sealing plate 21 to the inclined block 24, and finally the dust slides off; when the dust is discharged from the wind-locking housing 11, the impact force is weakened. If the dust is raised upward due to the influence of other external forces such as strong wind, it will be blocked by the sealing plate 21 and fall down, and cannot enter the inner side of the dust collector hopper 10.

[0019] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0020] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the product or system including the elements.

[0021] The above description shows and describes several preferred embodiments of the present application, but as mentioned above, it should be understood that the present application is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the application concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the present application, and should be within the scope of protection of the claims attached to the present application.

Claims

1. A dust accumulation prevention device for a pulse bag dust collector, comprising a dust collector ash hopper (10); a bracket (15) is fixedly arranged outside the dust collector ash hopper (10); a compression air distribution box (14) is fixedly arranged on the upper end surface of the bracket (15); the compression air distribution box (14) is provided with an air distribution box air inlet pipe (16) and an air distribution box air outlet pipe (17); a pulse valve (18) is fixedly arranged on the lower side of the bracket (15); the output end of the pulse valve (18) is fixedly connected to an injection pipe (23); the injection pipe (23) passes through the side wall of the dust collector ash hopper (10) and extends into the inner side of the dust collector ash hopper (10); characterized in that The invention also comprises an air-locking housing (11) arranged at the lower end of the dust collector ash hopper (10); two pairs of connecting blocks (19) are arranged between the dust collector ash hopper (10) and the air-locking housing (11); two pairs of fixing bolts (20) are threadedly connected to each of the connecting blocks (19); the ends of the pair of fixing bolts (20) on the upper side are threadedly connected to the dust collector ash hopper (10); the ends of the pair of fixing bolts (20) on the lower side are threadedly connected to the air-locking housing (11); the inner side of the air-locking housing (11) is rotatably connected to a pair of sealing plates (21); an inclined block (24) is fixedly arranged at the end of each sealing plate (21); each inclined block (24) forms an obtuse angle with the sealing plate (21); each sealing plate (21) is located at the air-locking housing (1 1) The outer side is fixedly connected to a ratchet (13); the outer side of the wind-locking housing (11) is rotatably connected to a pair of ratchet pawls (22); a spring sheet (12) is fixedly arranged on the outer side of the wind-locking housing (11); each of the spring sheets (12) has a thin metal spring sheet portion; a gap exists between the thin metal spring sheet portion of each spring sheet (12) and the wind-locking housing (11); the end of a ratchet (22) on each side is respectively abutted against the ratchet (13) on the corresponding side; the outer side end of the ratchet (22) is abutted against the lower end of the thin metal spring sheet portion of the spring sheet (12); a torsion spring is arranged between each ratchet (22) and the wind-locking housing (11), and the two ends of each torsion spring are respectively fixedly connected to the corresponding ratchet (22) and the wind-locking housing (11).

2. The dust accumulation prevention device for a pulse bag dust collector according to claim 1, characterized in that: Each of the sealing plates (21) and the inclined blocks (24) is made of a high-hardness, lightweight composite resin material.

3. The dust accumulation prevention device for a pulse bag dust collector according to claim 1, characterized in that: The air lock housing (11) is a stainless steel plate; the inner side of the air lock housing (11) is ground and polished.

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