Gypsum production dust removal device

Abstract

The utility model discloses a dust removal device for gypsum production, and relates to the technical field of gypsum production dust removal, the dust removal device comprises a fan and a collecting box, an air suction pipe is arranged on the side face of the fan, the bottom of the air suction pipe penetrates through and is fixedly connected with a falling pipe, and the bottom of the falling pipe penetrates through and is fixedly connected with the top of the collecting box. A motor is arranged in the air suction pipe, a rotating shaft is arranged in the air suction pipe, a filter screen is fixedly connected to the interior of the air suction pipe, and a scraping and collecting assisting mechanism is arranged in the air suction pipe. A rotating shaft rotates to drive a brush to rotate to clean the surface of a filter screen, and meanwhile, a baffle is driven to repeatedly move up and down through cooperation of a rotating gear, a toothed bar, a hydraulic bin and other assemblies to block an opening of an air suction pipe, so that wind power in the air suction pipe is reduced; and when the brush rotates to clean, dust on the surface of the filter screen can fall down and enter the collecting box through the falling pipe to be collected.

Description

Technical Field

[0001] The utility model belongs to the technical field of dust removal in gypsum production, in particular to a dust removal device in gypsum production. Background Art

[0002] Gypsum is a monoclinic mineral and a hydrate whose main chemical component is calcium sulfate. Gypsum is a widely used industrial material and building material. It can be used as a cement retarder, gypsum building products, model making, medical food additives, sulfuric acid production, paper filler, paint filler, etc.

[0003] The utility model with announcement number CN218794612U discloses a dust removal device for a gypsum production workshop, including a fan, a wheel, an air duct, a dust suction structure, a dust suction pipe, a dust suction port, a dust falling pipe, a collecting box, and a crank. The wheel is arranged at the bottom end of the fan, the bottom end of the air duct is installed on the fan, the dust suction structure is installed on the top of the air duct, the rear ends of the two dust suction pipes are respectively fixed to the left and right parts of the dust suction structure, the dust suction port is installed at the front ends of the two dust suction pipes, the top ends of the two dust falling pipes are respectively fixed to the left and right parts of the dust suction structure, the collecting box is installed at the bottom ends of the two dust falling pipes, and the crank is installed on the dust suction structure. In the above application document, the crank is used to rotate the rotating shaft so that the cleaning brush rotates to clean and sweep away the dust on the surface of the dust filter bag, and the swept dust falls into the collecting box through the dust falling pipe, so as to avoid the accumulation and clogging of the dust filter bag by the lighter gypsum dust and affect the dust removal effect. The wind force generated by the fan during operation will cause the dust to be adsorbed on the surface of the dust filter bag, and at this time, it is difficult for the cleaning brush to sweep away the dust even if it rotates. Summary of the invention

[0004] The utility model aims to provide a gypsum production dust removal device to solve the existing problems.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model discloses a gypsum production dust removal device, comprising a fan and a collection box, a suction pipe is arranged on the side of the fan, a drop pipe is passed through and fixedly connected to the bottom of the suction pipe, the bottom of the drop pipe is passed through and fixedly connected to the top of the collection box, a filter is fixedly connected to the inside of the suction pipe, a scraping and collecting mechanism is arranged inside the suction pipe, and a material-helping mechanism is arranged at the bottom of the suction pipe, the scraping and collecting mechanism comprises a motor and a hydraulic bin, the motor is fixedly installed in the suction pipe through a mounting plate, the motor is fixedly connected to a rotating shaft through its output shaft, a brush is fixedly connected to one end of the rotating shaft away from the motor, a rotating gear is fixedly connected to the surface of the rotating shaft, the hydraulic bin passes through and fixedly connected to the top of the suction pipe, a pressure rod is slidably connected to the internal piston of one end of the hydraulic bin, a pressure plate is fixedly connected to the bottom of the pressure rod, a return spring is sleeved on the surface of the pressure rod, a gear rod is fixedly connected to the bottom of the pressure plate, a push rod is slidably connected to the internal piston of the other end of the hydraulic bin, and a baffle is fixedly connected to the bottom of the push rod.

[0007] Furthermore, the bristles of the brush are made of nylon, and the bristles of the brush are in contact with the surface of the filter in an initial state. The bristles of nylon are not easy to generate static electricity to absorb dust, and the bristles of the brush will clean the surface of the filter when the brush rotates.

[0008] Furthermore, the rotating gear is an incomplete gear, and the teeth on the rotating gear are matched with the teeth on the gear rod. When the rotating gear rotates and its upper teeth mesh with the teeth on the gear rod, the gear rod will be driven to move upward.

[0009] Furthermore, both ends of the return spring initially contact the top of the pressure plate and one end of the hydraulic chamber close to the pressure rod, and the upward movement of the pressure plate squeezes the return spring to gradually tighten it.

[0010] Furthermore, the feeding assistance mechanism includes an extrusion block and a pneumatic chamber, wherein the extrusion block is fixedly connected to the surface of the rotating shaft, the pneumatic chamber passes through and is fixedly connected to the bottom of the suction pipe, an air bag is provided at one end of the pneumatic chamber, and an internal piston at the other end of the pneumatic chamber is slidably connected to a piston rod, and an end of the piston rod away from the pneumatic chamber is fixedly connected to an impact plate.

[0011] Furthermore, the length of the extrusion block is greater than the distance from the shaft surface to the airbag, and the airbag is in an expanded state in the initial state. The extrusion block will repeatedly squeeze the airbag when rotating with the shaft. The air pressure inside the squeezed airbag will enter the air pressure chamber and push the piston rod to move to the right.

[0012] Furthermore, the end of the impact plate away from the piston rod is close to the drop tube in the initial state, and the impact plate is made of rubber. The movement of the piston rod to the right will drive the impact plate to move to the right and hit the drop tube. The impact plate made of rubber is elastic and will not cause damage to the drop tube.

[0013] The utility model has the following beneficial effects:

[0014] The utility model is provided with a scraping and collecting mechanism to achieve the effect that the motor is turned on to drive the rotating shaft to rotate. The rotating shaft drives the brush to rotate to clean the surface of the filter screen. At the same time, the baffle plate is driven by the cooperation of components such as the rotating gear, the gear rod, the hydraulic bin, etc. to repeatedly move up and down to block the opening of the suction pipe, thereby reducing the wind force in the suction pipe. When the brush rotates to clean, the dust on the surface of the filter screen can fall and enter the collection box through the drop pipe for collection.

[0015] The utility model is provided with an auxiliary material discharge mechanism, so that the motor is turned on to drive the rotating shaft to rotate. The rotation of the rotating shaft drives the brush to rotate to clean the surface of the filter screen. At the same time, the cooperation of the extrusion block, the air bag, the air pressure chamber and other components drives the impact plate to repeatedly impact the drop pipe, causing the drop pipe to produce a small vibration, shaking off the dust adhering to the inner wall of the drop pipe, and helping to collect it.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a three-dimensional cross-sectional view of the overall structure of the utility model;

[0020] Figure 3 A three-dimensional front view of the scraping and collecting mechanism structure of the utility model;

[0021] Figure 4 A three-dimensional side view of the scraping and collecting mechanism structure of the utility model;

[0022] Figure 5 It is a three-dimensional schematic diagram of the auxiliary material loading mechanism structure of the utility model.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. Fan; 2. Collection box; 3. Suction pipe; 4. Drop pipe; 5. Filter; 6. Assisting scraping and collecting mechanism; 61. Motor; 62. Rotating shaft; 63. Brush; 64. Rotating gear; 65. Hydraulic chamber; 66. Pressure rod; 67. Pressure plate; 68. Return spring; 69. Gear rod; 610. Push rod; 611. Baffle; 7. Assisting unloading mechanism; 71. Extrusion block; 72. Air pressure chamber; 73. Air bag; 74. Piston rod; 75. Impact plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-5 The utility model is a gypsum production dust removal device, including a fan 1 and a collection box 2. A suction pipe 3 is arranged on the side of the fan 1. A drop pipe 4 is passed through and fixedly connected to the bottom of the suction pipe 3. The bottom of the drop pipe 4 passes through and fixedly connected to the top of the collection box 2. A filter screen 5 is fixedly connected to the inside of the suction pipe 3. An auxiliary scraping and collecting mechanism 6 is arranged inside the suction pipe 3. An auxiliary material discharge mechanism 7 is arranged at the bottom of the suction pipe 3. The auxiliary scraping and collecting mechanism 6 includes a motor 61 and a hydraulic chamber 65. The motor 61 is fixedly installed in the suction pipe 3 through a mounting plate. The motor 61 passes through its The output shaft is fixedly connected to a rotating shaft 62, and one end of the rotating shaft 62 away from the motor 61 is fixedly connected to a brush 63, and the surface of the rotating shaft 62 is fixedly connected to a rotating gear 64. The hydraulic chamber 65 passes through and is fixedly connected to the top of the suction pipe 3. The internal piston at one end of the hydraulic chamber 65 is slidably connected to a pressure rod 66, and the bottom of the pressure rod 66 is fixedly connected to a pressure plate 67. The surface of the pressure rod 66 is sleeved with a return spring 68, and the bottom of the pressure plate 67 is fixedly connected to a gear rod 69, and the internal piston at the other end of the hydraulic chamber 65 is slidably connected to a push rod 610, and the bottom of the push rod 610 is fixedly connected to a baffle 611.

[0027] The bristles of the brush 63 are made of nylon, and in the initial state, the bristles of the brush 63 are in contact with the surface of the filter 5. The bristles of nylon are not easy to generate static electricity to absorb dust. When the brush 63 rotates, its bristles will clean the surface of the filter 5.

[0028] The rotating gear 64 is an incomplete gear, and the teeth on the rotating gear 64 match the teeth on the gear rod 69. When the rotating gear 64 rotates and its upper teeth mesh with the teeth on the gear rod 69, the gear rod 69 is driven to move upward.

[0029] In the initial state, both ends of the return spring 68 are in contact with the top of the pressure plate 67 and one end of the hydraulic chamber 65 close to the pressure rod 66. The upward movement of the pressure plate 67 will squeeze the return spring 68 and make it gradually tighten.

[0030] The auxiliary unloading mechanism 7 includes an extrusion block 71 and an air pressure chamber 72. The extrusion block 71 is fixedly connected to the surface of the rotating shaft 62. The air pressure chamber 72 penetrates and is fixedly connected to the bottom of the suction pipe 3. An air bag 73 is provided at one end of the air pressure chamber 72. The internal piston at the other end of the air pressure chamber 72 is slidably connected to a piston rod 74. The end of the piston rod 74 away from the air pressure chamber 72 is fixedly connected to a collision plate 75.

[0031] The length of the extrusion block 71 is greater than the distance from the surface of the rotating shaft 62 to the airbag 73, and the airbag 73 is in an expanded state in the initial state. When the extrusion block 71 rotates with the rotating shaft 62, it will repeatedly squeeze the airbag 73. The air pressure inside the airbag 73 will enter the air pressure chamber 72 and push the piston rod 74 to move to the right.

[0032] The end of the impact plate 75 away from the piston rod 74 is initially close to the drop tube 4, and the impact plate 75 is made of rubber. The piston rod 74 moves to the right, which drives the impact plate 75 to move to the right and hit the drop tube 4. The impact plate 75 made of rubber is elastic and will not cause damage to the drop tube 4.

[0033] A specific application of this embodiment is: move the whole device until it is suitable, turn on the fan 1, the suction force generated by the fan 1 will suck the air in the production workshop through the suction pipe 3 and discharge it from the rear end of the fan 1, and the gypsum dust in the air will be blocked by the filter 5, so as to remove dust from the production workshop. When too much gypsum dust adheres to the surface of the filter 5 and affects the dust removal effect, the motor 61 can be turned on, and the motor 61 drives the shaft 62 to rotate through its output shaft, and the rotation of the shaft 62 drives the brush 63 to rotate, and the brush 63 rotates and its bristles clean the surface of the filter 5 At the same time, the rotation of the rotating shaft 62 will drive the rotating gear 64 to rotate. At the beginning, when the rotating gear 64 rotates and its upper teeth are meshed with the teeth on the gear rod 69, it will drive the gear rod 69 to move upward. The gear rod 69 moves upward to drive the pressure plate 67 and the pressure rod 66 to move upward. The return spring 68 is gradually tightened. The upward movement of the pressure rod 66 will drive the push rod 610 to move downward through the hydraulic pressure in the hydraulic chamber 65. The downward movement of the push rod 610 will drive the baffle 611 to move downward to block the opening of the suction pipe 3 to reduce the wind force in the suction pipe 3. At this time, the dust on the filter screen 5 will be The brush 63 brushes down and enters the collection box 2 through the drop tube 4 for collection, and when the rotating gear 64 rotates to the point where the toothless part is out of mesh with the gear rod 69, the return spring 68 rebounds and drives the pressure plate 67, the pressure rod 66 and the gear rod 69 to move downward and restore. At this time, the hydraulic pressure in the hydraulic chamber 65 drives the push rod 610 and the baffle 611 to move upward and restore and no longer block the opening of the suction pipe 3, thereby forming a cycle, effectively ensuring that the dust on the surface of the filter screen 5 can fall down and enter the collection box 2 through the drop tube 4 for collection when the brush 63 rotates to clean, and the extrusion block 71 follows As the rotating shaft 62 rotates, the airbag 73 will be squeezed repeatedly. The air pressure inside the airbag 73 will enter the air pressure chamber 72 and push the piston rod 74 to move right. The movement of the piston rod 74 to the right will drive the impact plate 75 to move right and hit the drop tube 4. When the squeezing block 71 leaves the airbag 73, the rebound air pressure of the airbag 73 returns to the airbag 73. At this time, the piston rod 74 drives the impact plate 75 to move left and restore. The impact plate 75 repeatedly hits the drop tube 4, causing the drop tube 4 to produce a small vibration, shaking off the dust adhering to the inner wall of the drop tube 4, thereby helping to collect it.

[0034] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0035] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A gypsum production dust removal device, comprising a fan (1) and a collection box (2), characterized in that: A suction pipe (3) is provided on the side of the fan (1); a drop pipe (4) is passed through and fixedly connected to the bottom of the suction pipe (3); the bottom of the drop pipe (4) is passed through and fixedly connected to the top of the collection box (2); a filter screen (5) is fixedly connected to the inside of the suction pipe (3); a scraping and collecting mechanism (6) is provided inside the suction pipe (3); and a material discharging mechanism (7) is provided at the bottom of the suction pipe (3); The scraping and collecting assisting mechanism (6) comprises a motor (61) and a hydraulic chamber (65); the motor (61) is fixedly mounted inside the air suction pipe (3) via a mounting plate; the motor (61) is fixedly connected to a rotating shaft (62) via its output shaft; one end of the rotating shaft (62) away from the motor (61) is fixedly connected to a brush (63); a surface of the rotating shaft (62) is fixedly connected to a rotating gear (64); the hydraulic chamber (65) passes through and is fixedly connected to the top of the air suction pipe (3); an internal piston at one end of the hydraulic chamber (65) is slidably connected to a pressure rod (66); a bottom of the pressure rod (66) is fixedly connected to a pressure plate (67); a return spring (68) is sleeved on the surface of the pressure rod (66); a gear rod (69) is fixedly connected to the bottom of the pressure plate (67); a push rod (610) is slidably connected to the internal piston at the other end of the hydraulic chamber (65); a baffle (611) is fixedly connected to the bottom of the push rod (610).

2. A gypsum production dust removal device according to claim 1, characterized in that: The bristles of the brush (63) are made of nylon, and in an initial state, the bristles of the brush (63) are in contact with the surface of the filter screen (5).

3. A gypsum production dust removal device according to claim 2, characterized in that: The rotating gear (64) is an incomplete gear, and the teeth on the rotating gear (64) are matched with the teeth on the gear rod (69).

4. A gypsum production dust removal device according to claim 3, characterized in that: In the initial state, both ends of the return spring (68) are in contact with the top of the pressure plate (67) and one end of the hydraulic chamber (65) close to the pressure rod (66).

5. A gypsum production dust removal device according to claim 4, characterized in that: The auxiliary unloading mechanism (7) comprises an extrusion block (71) and an air pressure chamber (72), wherein the extrusion block (71) is fixedly connected to the surface of the rotating shaft (62), and the air pressure chamber (72) penetrates and is fixedly connected to the bottom of the suction pipe (3), an air bag (73) is provided at one end of the air pressure chamber (72), and a piston rod (74) is slidably connected to an internal piston at the other end of the air pressure chamber (72), and an end of the piston rod (74) away from the air pressure chamber (72) is fixedly connected to an impact plate (75).

6. A gypsum production dust removal device according to claim 5, characterized in that: The length of the squeezing block (71) is greater than the distance from the surface of the rotating shaft (62) to the airbag (73), and the airbag (73) is in an expanded state in an initial state.

7. A gypsum production dust removal device according to claim 6, characterized in that: In an initial state, one end of the impact plate (75) away from the piston rod (74) is close to the drop tube (4), and the impact plate (75) is made of rubber.

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