Recycling dust removal equipment

Abstract

The utility model discloses recycling dust removal equipment which comprises a support, a barrel arranged on the support, a feed inlet arranged on the side wall of the barrel and connected with a feed pipe, a discharge hopper arranged at the lower end of the barrel, a first sealing plate arranged at the top of the barrel, and a second sealing plate arranged in the barrel below the first sealing plate. A plurality of vertical filter screen drums are arranged at the bottom of the second sealing plate in the circumferential direction, exhaust holes penetrating up and down are formed in the second sealing plate corresponding to the upper end of each filter screen drum, each filter screen drum is sleeved with a filter cloth bag, and an airflow pipe is arranged in each filter screen drum; the upper end of each airflow pipe extends upwards and penetrates through the exhaust hole to be fixed to the bottom of the first sealing plate, a center shaft is coaxially arranged in the barrel, a lifting machine is arranged in the middle of the first sealing plate, and the upper end of the center shaft extends upwards, penetrates through the second sealing plate and the first sealing plate in sequence and then is rotationally supported through a bearing seat arranged on the lifting machine. The dust removal device is high in dust removal efficiency for dust generated in the calcium hydroxide production process, and blockage is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of calcium hydroxide dust removal equipment, in particular to a recycling and reuse dust removal equipment. Background Art

[0002] Calcium hydroxide is a white powdery solid. Its chemical formula is Ca(OH), commonly known as slaked lime or hydrated lime. Its aqueous solution is called clear lime water. Calcium hydroxide has the general properties of an alkali and is a strong base. Calcium hydroxide is a binary strong base, but is only slightly soluble in water. Calcium hydroxide is widely used in industry.

[0003] In the production process of calcium hydroxide, calcium hydroxide needs to be powdered. The purpose of powder selection is to make the refined calcium hydroxide mesh purer. There are many kinds of powder selecting machines, including centrifugal, three-separation, fly ash and other types. The powder selection methods are similar. The ultimate goal is to select qualified powder. The powder selection process will generate a lot of dust. Dust collectors are currently used to recycle calcium hydroxide dust. However, due to the presence of water vapor and carbon dioxide in the air, some calcium hydroxide solidifies on the outer surface of the filter bag and is difficult to clean, which makes the dust collector easy to get blocked, reduces the dust removal efficiency, and makes manual cleaning time-consuming and labor-intensive. Utility Model Content

[0004] The utility model provides a recycling and reusing dust removal device, which solves the problems that a filter device is easily blocked, the dust removal efficiency is low, and manual cleaning of the filter device is time-consuming and laborious during the process of recycling calcium hydroxide using a traditional dust collector.

[0005] The utility model provides a recycling and reuse dust removal equipment, including a bracket, a cylinder body is arranged on the bracket, a feed port is arranged on the side wall of the cylinder body and is connected to a feed pipe, a discharge hopper is arranged at the lower end of the cylinder body, a first sealing plate is arranged on the top of the cylinder body, a second sealing plate is arranged in the cylinder body below the first sealing plate, a plurality of vertical filter screen cylinders are arranged along the circumferential direction at the bottom of the second sealing plate, an exhaust hole which passes through from top to bottom is arranged on the second sealing plate corresponding to the upper end of each filter screen cylinder, a filter cloth bag is sleeved on the outside of each filter screen cylinder, an air flow tube is coaxially arranged in each filter screen cylinder, the upper end of each air flow tube extends upward and passes through the exhaust hole and is fixed at the bottom of the first sealing plate, a central axis is coaxially arranged in the cylinder body, a lift is arranged in the middle of the first sealing plate, and the upper end of the central axis extends upward and passes through the second sealing plate and the first sealing plate in sequence The lifting device is actuated by a bearing seat, and a motor mounting seat is arranged on the lifting device. A first motor is arranged on the motor mounting seat. The output shaft of the first motor is connected to the upper end of the central shaft through a coupling. A horizontal positioning plate is arranged at the lower end of the central shaft. One end of the positioning plate is fixedly connected to the central shaft, and the other end extends and is suspended along the radial direction of the cylinder. A vertical mounting hole is arranged at the suspended end of the positioning plate. A positioning sleeve is rotatably arranged in the mounting hole. A driven pulley is coaxially arranged at the lower end of the positioning sleeve. A second motor is arranged in the middle of the positioning plate. A driving pulley is arranged on the output shaft of the second motor. The driving pulley and the driven pulley are connected for transmission by a transmission belt. An exhaust port is arranged on the first sealing plate, and the exhaust port is connected to the dust removal fan arranged on the first sealing plate through an exhaust pipe.

[0006] Furthermore, a plurality of brushes are arranged on the inner wall of the positioning sleeve along the circumferential direction.

[0007] Furthermore, a laser emitting sensor is arranged at the suspended end of the positioning plate, and a plurality of corresponding laser receiving sensors are arranged along the circumferential direction on the inner wall of the cylinder body. The laser emitting sensor and the laser receiving sensor constitute a pair of opposing sensors.

[0008] Furthermore, the first motor and the second motor are both servo motors.

[0009] Furthermore, each of the air flow tube side walls is covered with air holes, and an air inlet is opened on the upper side wall of each of the air flow tubes, and the air inlet is connected to an air pump through an air pipe for air supply.

[0010] Furthermore, the filter bag is fixed to the outer wall of the filter screen cylinder through a throat clamp.

[0011] It can be seen from the above technical solutions that the utility model provides a dust removal device for recycling and reuse.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model provides negative pressure through the dust removal fan, so that the calcium hydroxide dust can pass through the filter screen and the filter bag to achieve rapid gas-solid separation. The air supply pipe is connected to the air pump to supply air to the air flow pipe. The high-pressure gas is sprayed from the air inlet opened on the side wall of the air flow pipe to the inner wall of the filter screen, which can realize real-time cleaning of the dust on the filter bag, and the calcium hydroxide dust recovery efficiency is high;

[0014] 2. The utility model drives the active pulley to rotate through the second motor, and drives the driven pulley and the positioning sleeve to rotate through the transmission belt. During the rotation of the positioning sleeve, the solid calcium hydroxide attachments adhered to the outer surface of the filter bag can be automatically cleaned off by a brush, which can increase the air permeability of the filter bag, prevent the filter bag from being blocked due to long-term use, and have high dust removal efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the utility model, the following is a brief introduction to the drawings required for use in the implementation cases. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0016] Figure 1 This is a schematic diagram of the structure of a dust removal device for recycling and reuse proposed by the utility model;

[0017] Figure 2 For the utility model Figure 1 A local enlarged schematic diagram of position Ⅰ;

[0018] Figure 3 For the utility model Figure 1 A local enlarged schematic diagram of position II;

[0019] Figure 4 The utility model provides a schematic diagram of the distribution structure of the brushes of the recycling and reusing dust removal equipment on the positioning sleeve.

[0020] In the figure:

[0021] 1- Bracket;

[0022] 2- cylinder; 21- feed port; 22- feed pipe; 23- discharge hopper; 24- center axis; 25- lifter; 26- bearing seat; 27- motor mounting seat; 28- first motor; 29- coupling;

[0023] 3-first sealing plate; 31-exhaust port; 32-exhaust pipe; 33-dust removal fan;

[0024] 4-second sealing plate; 41-exhaust hole;

[0025] 5-Filter screen cartridge;

[0026] 6-filter bag; 61-throat clamp;

[0027] 7-air flow pipe; 70-air vent; 71-air inlet; 72-air delivery pipe;

[0028] 8-positioning plate; 80-bearing; 81-mounting hole; 82-positioning sleeve; 83-driven pulley; 84-second motor; 85-driving pulley; 86-transmission belt; 87-brush; 88-laser transmitting sensor; 89-laser receiving sensor; 871-fixing plate; 872-brush hair. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0030] Example 1

[0031] See also Figure 1-4 A recycling and reuse dust removal equipment includes a bracket 1, a cylinder 2 is arranged on the bracket 1, a feed port 21 is arranged on the side wall of the cylinder 2 and is connected to a feed pipe 22, a discharge hopper 23 is arranged at the lower end of the cylinder 2, a first sealing plate 3 is arranged on the top of the cylinder 2, a second sealing plate 4 is arranged in the cylinder 2 below the first sealing plate 3, and a plurality of vertical filter screen cylinders 5 are arranged along the circumferential direction at the bottom of the second sealing plate 4, and an exhaust hole 41 that passes through the upper end of each filter screen cylinder 5 is arranged on the second sealing plate 4 corresponding to the upper end of each filter screen cylinder 5, a filter bag 6 is sleeved on the outside of each filter screen cylinder 5, and an air flow tube 7 is coaxially arranged in each filter screen cylinder 5, and the upper end of each air flow tube 7 extends upward and passes through the exhaust hole 41 and is fixed to the bottom of the first sealing plate 3, a central axis 24 is coaxially arranged in the cylinder 2, and an elevator 25 is arranged in the middle of the first sealing plate 3, and the upper end of the central axis 24 extends upward and passes through the second sealing plate 4 and the first sealing plate 3 in sequence, and then passes through the elevator 25. The bearing seat 26 is rotatably supported, a motor mounting seat 27 is arranged on the elevator 25, and a first motor 28 is arranged on the motor mounting seat 27. The output shaft of the first motor 28 is connected to the upper end of the central shaft 24 through a coupling 29. A horizontal positioning plate 8 is arranged at the lower end of the central shaft 24. One end of the positioning plate 8 is fixedly connected to the central shaft 24, and the other end extends and is suspended along the radial direction of the cylinder 2. A vertical mounting hole 81 is arranged at the suspended end of the positioning plate 8, and a positioning sleeve 82 is rotatably arranged in the mounting hole 81. A driven pulley 83 is coaxially arranged at the lower end of the positioning sleeve 82. A second motor 84 is arranged in the middle of the positioning plate 8, and a driving pulley 85 is arranged on the output shaft of the second motor 84. The driving pulley 85 and the driven pulley 83 are connected and transmitted by a transmission belt 86. An exhaust port 31 is arranged on the first sealing plate 3, and the exhaust port 31 is connected to the dust removal fan 33 arranged on the first sealing plate 3 through an exhaust pipe 32.

[0032] In this embodiment, please refer to the attached Figure 4A plurality of brushes 87 are arranged along the circumferential direction on the inner wall of the positioning sleeve 82, and each brush 87 includes a fixing plate 871 and bristles 872. The fixing plate 871 is an arc-shaped plate, and the outer arc surface of the fixing plate 871 is fixed to the inner wall of the positioning sleeve 82. The outer arc surface of the fixing plate 871 is fixed to the inner wall of the positioning sleeve 82 by adhesive bonding, or the fixing plate 871 can also be fixed to the inner wall of the positioning sleeve 82 by screws, and the bristles 872 are distributed in an array and fixed to the inner arc surface of the fixing plate 871.

[0033] In this embodiment, please refer to the attached Figure 1 , 2 A laser emitting sensor 88 is arranged at the suspended end of the positioning plate 8, and a plurality of corresponding laser receiving sensors 89 are arranged along the circumferential direction of the inner wall of the cylinder 2. The laser emitting sensor 88 and the laser receiving sensor 89 constitute a pair of opposing sensors, and the relative position of the positioning sleeve 82 and each filter screen cylinder 5 is accurately monitored by the laser emitting sensor 88 and the laser receiving sensor 89.

[0034] In this embodiment, please refer to the attached Figure 1 , 2 A horizontal bearing 80 is coaxially arranged inside the lower end of the mounting hole 81, and the center shaft 24 is coaxially rotatably connected to the inner ring of the bearing 80 through an inner sleeve, and the center shaft 24 and the inner ring hole of the bearing 80 are interference fit.

[0035] In this embodiment, the first motor 28 and the second motor 84 are both servo motors, and the servo motors can accurately control the filter screen cylinder 5 to enter the positioning sleeve 82 to clean the filter bag 6.

[0036] In this embodiment, please refer to the attached Figure 1 , 3 The side wall of each air flow tube 7 is covered with air holes 70, and an air inlet 71 is opened on the upper side wall of each air flow tube 7. The air inlet 71 is connected to the air pump through the air pipe 72 for air supply. The air pump provides high-pressure air, and accurately sprays air from the inside of the filter screen cylinder 5 to the outside, thereby achieving accurate cleaning of the adhesive on the filter bag 6, with low cleaning energy consumption and fast speed.

[0037] In this embodiment, please refer to the attached Figure 1 , 3 The upper end of the filter bag 6 is clamped on the outer wall of the filter screen cylinder 5 through the throat clamp 61, so that the filter bag 6 is fixed to the outer wall of the filter screen cylinder 5, which can prevent the filter bag 6 from falling off, and the filter bag 6 is easy to disassemble and replace.

[0038] In this embodiment, the lift 25, the dust removal fan 33, the laser emitting sensor 88 and the laser receiving sensor 89 are all existing commercially available equipment.

[0039] From the above technical solution, it can be seen that when using, please refer to the attached Figure 1-4The cylinder 2 is supported on the ground by the bracket 1, and the dusty calcium hydroxide is introduced into the cylinder 2 through the feed pipe 22 and the feed port 21. By starting the dust removal fan 33, the dust in the cylinder 2 moves upward and is filtered by the filter bag 6 on the filter screen cylinder 5, and the calcium hydroxide is separated from the air. The controller controls the air pump to supply air to the air flow pipe 7 through the air supply pipe 72, and then the high-pressure air is sprayed from the air vent 70 to the inner wall of the filter screen cylinder 5 to clean up the dust on the filter bag 6. The first motor 28 drives the central shaft 24 to rotate, driving the positioning plate 8 to rotate so that the positioning sleeve 82 is located under one of the filter screen cylinders 5, and then the controller controls the elevator 25 to slowly rise. Correspondingly, the height of the first motor 28, the central shaft 24, the positioning plate 8, and the positioning sleeve 82 also rises accordingly. In the process of rising, the positioning sleeve 82 is covered on the outside of the filter screen cylinder 5 and continues to rise. Position, at the same time, the controller controls the second motor 84 to start, the output shaft of the second motor 84 rotates to drive the active pulley 85 to rotate, the active pulley 85 rotates through the transmission belt 86 to drive the driven pulley 83 to rotate, the driven pulley 83 rotates to drive the positioning sleeve 82 to rotate, because the inner wall of the positioning sleeve 82 is equipped with multiple brushes 87, the solid attachments of calcium hydroxide adhered to the outer surface of the filter bag 6 can be cleaned off by the brushes 87 during the rotation of the positioning sleeve 82, the air permeability of the filter bag 6 can be increased, and the filter bag 6 can be prevented from being blocked after long-term use. During the rotation of the positioning plate 8 driven by the first motor 28 to drive the central shaft 24, the laser emitting sensor 88 and the laser receiving sensor 89 emit signals, and the signals are fed back to the controller, and the controller controls the rotation angle of the first motor 28 to make the positioning sleeve 82 accurately rotate to the bottom of each filter screen cylinder 5 to clean the filter bag 6.

[0040] Those skilled in the art will readily come up with other embodiments of the present invention after considering the specification and practicing the utility model disclosed herein. The present invention is intended to cover any variation, use or adaptation of the present invention, which follows the general principles of the present invention and includes common knowledge or customary technical means in the art that are not disclosed in the present invention. The specification and examples are to be regarded as exemplary only, and the true scope of the present invention is indicated by the claims.

[0041] It should be understood that the present invention is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The above-described embodiments of the present invention do not constitute a limitation on the scope of protection of the present invention.

Claims

1. A dust removal device for recycling and reuse, characterized in that: The invention comprises a support (1), a cylinder (2) is arranged on the support (1), a feed port (21) is arranged on the side wall of the cylinder (2) and is connected to a feed pipe (22), a discharge hopper (23) is arranged at the lower end of the cylinder (2), a first sealing plate (3) is arranged at the top of the cylinder (2), a second sealing plate (4) is arranged in the cylinder (2) below the first sealing plate (3), a plurality of vertically arranged filter screens (5) are arranged at the bottom of the second sealing plate (4) along the circumferential direction, and an exhaust hole (23) which is connected vertically is arranged on the second sealing plate (4) corresponding to the upper end of each filter screen (5). 41), a filter bag (6) is sleeved on the outside of each filter screen cylinder (5), an airflow tube (7) is coaxially arranged inside each filter screen cylinder (5), the upper end of each airflow tube (7) extends upward and passes through the exhaust hole (41) and is fixed to the bottom of the first sealing plate (3), a central axis (24) is coaxially arranged inside the cylinder (2), a lift (25) is arranged in the middle of the first sealing plate (3), the upper end of the central axis (24) extends upward and passes through the second sealing plate (4) and the first sealing plate (3) in sequence, and then passes through the bearing seat (25) arranged on the lift (25) 26) rotation support, a motor mounting seat (27) is arranged on the lift (25), a first motor (28) is arranged on the motor mounting seat (27), an output shaft of the first motor (28) is connected to the upper end of the central shaft (24) through a coupling (29), a horizontal positioning plate (8) is arranged at the lower end of the central shaft (24), one end of the positioning plate (8) is fixedly connected to the central shaft (24), and the other end extends radially along the cylinder (2) and is suspended, a vertical mounting hole (81) is arranged at the suspended end of the positioning plate (8), and the mounting hole (81) ) is rotatably arranged in the inner part, a driven pulley (83) is coaxially arranged at the lower end of the positioning sleeve (82), a second motor (84) is arranged in the middle part of the positioning plate (8), a driving pulley (85) is arranged on the output shaft of the second motor (84), the driving pulley (85) and the driven pulley (83) are connected and transmitted by a transmission belt (86), an exhaust port (31) is arranged on the first sealing plate (3), and the exhaust port (31) is connected to the dust removal fan (33) arranged on the first sealing plate (3) through an exhaust pipe (32).

2. The dust removal equipment for recycling and reuse according to claim 1, characterized in that: A plurality of brushes (87) are arranged on the inner wall of the positioning sleeve (82) along the circumferential direction.

3. The dust removal equipment for recycling and reuse according to claim 1, characterized in that: A laser emitting sensor (88) is arranged at the suspended end of the positioning plate (8), and a plurality of corresponding laser receiving sensors (89) are arranged along the circumferential direction of the inner wall of the cylinder (2). The laser emitting sensor (88) and the laser receiving sensor (89) constitute a pair of opposing sensors.

4. The dust removal equipment for recycling and reuse according to claim 1, characterized in that: The first motor (28) and the second motor (84) are both servo motors.

5. The dust removal equipment for recycling and reuse according to claim 1, characterized in that: The side wall of each air flow tube (7) is covered with air holes (70), and the upper side wall of each air flow tube (7) is provided with an air inlet (71), and the air inlet (71) is connected to an air pump through an air delivery pipe (72) for air supply.

6. The dust removal equipment for recycling and reuse according to claim 1, characterized in that: The filter cloth bag (6) is fixed to the outer wall of the filter screen cylinder (5) via a throat clamp (61).

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