An automatic dust removal device

Abstract

This utility model discloses an automatic dust removal device, belonging to the technical field of dust removal devices. It includes a negative pressure pipe and two connecting seats positioned above the negative pressure pipe. A first dust collector and a second dust collector are respectively connected to the top of the two connecting seats via a first pneumatic slide valve and a second pneumatic slide valve. A collecting auger is installed inside the flash dust removal box and connected to the negative pressure pipe. This automatic dust removal device maintains a negative pressure environment at all times. By independently controlling the first and second pneumatic slide valves, material is diverted between the two dust collectors, reducing the load on a single path, preventing dust generation, and quickly removing accumulated dust from the negative pressure pipe during backflushing, reducing adhesion and loss. The first and second dust collectors alternate backflushing, with one dust collector continuously operating while the other is backflushing, effectively preventing blockage and ensuring continuous production.

Description

Technical Field

[0001] This utility model relates to the technical field of dust removal devices, specifically an automatic dust removal device. Background Technology

[0002] Automatic dust removal devices are specialized equipment used in industrial production, environmental protection, and material processing. They separate and remove dust, fine particles, and other impurities from materials through physical means (including mechanical methods) to improve material purity, ensure product quality, and meet environmental emission standards. For example, existing technology such as Chinese Patent CN201410018762.4 (application date January 15, 2014) discloses a dust recycling system and a dust recycling and processing method. This system can transport dust from a sedimentation tank to a vibrating screen for crushing and filtration, and then use a screw conveyor mechanism to send the dust out for recycling and reuse. The screw conveyor mechanism operates smoothly, which helps to reduce dust dispersion.

[0003] However, existing dust removal methods mostly rely on manual activation of pulse controllers for dust removal, and manual handling of material receiving and loading. When performing dust removal, the induced draft fan must be shut down, resulting in the loss of negative pressure in the system. This leads to the generation of large amounts of dust during material conveying and dust removal, increasing labor costs and intensity, and causing material loss. Simultaneously, the material bins remain open for extended periods, making them susceptible to contamination from external impurities, moisture, or microorganisms, reducing material quality and negatively impacting finished product performance and production stability during subsequent calcination and other processes. Therefore, there is an urgent need for an automatic dust removal device to overcome these shortcomings. Utility Model Content

[0004] The purpose of this invention is to provide an automatic dust removal device to solve the problems in the existing dust removal process that easily generate dust, contaminate materials, cause material loss, and affect continuous production.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic dust removal device, comprising a negative pressure pipe and two connecting seats disposed above the negative pressure pipe, wherein a first dust collector and a second dust collector are respectively connected above the two connecting seats via a first pneumatic slide valve and a second pneumatic slide valve, the left end of the negative pressure pipe is also sealed to a flash dust removal box, the flash dust removal box is provided with a collecting auger, the collecting auger is connected to the negative pressure pipe, and the right end of the negative pressure pipe is sealed to a third pneumatic slide valve, wherein the backflushing time of the first dust collector and the second dust collector can be centrally and automatically controlled.

[0006] Preferably, two limiting blocks are slidably installed inside the first dust collector by two return springs, and the outer ends of the two limiting blocks extend through the interior of the connecting seat. The two limiting blocks can be automatically pushed into the interior of the connecting seat by the elastic force of the two return springs themselves.

[0007] Preferably, the outer surfaces of the two limiting blocks are inclined, and the two limiting blocks are symmetrically arranged about the vertical center line of the first dust collector.

[0008] Preferably, two pressing rods are slidably installed inside the connecting seat, and the inner ends of the two pressing rods are arc-shaped, and the inner ends of the two pressing rods correspond to limit blocks.

[0009] Preferably, the outer sides of the two pressing rods are connected to one end of two pressing springs, and the two pressing springs have the same structure, and the other end of the two pressing springs is fixedly connected to the inner side wall of the connecting seat.

[0010] Preferably, a top plate is attached to the bottom of the first dust collector, and the top plate is circular in shape and is disposed inside the connecting seat.

[0011] Preferably, two support rods are rotatably mounted below the top plate, and the two support rods are inclined. A movable block is rotatably connected below the two support rods, and the two movable blocks are slidably mounted inside the connecting seat by means of a storage spring.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The device maintains a negative pressure environment throughout the material conveying and dust removal process. Through the independent control of the first and second pneumatic slide gate valves, the material is diverted between the two dust collectors, which reduces the load on a single path and avoids dust generation due to loss of negative pressure. During the backflushing cleaning process, the dust in the negative pressure pipe can be blown away and discharged in time, reducing material adhesion and loss.

[0014] The first and second dust collectors adopt an alternating back-blowing mode, where one path is back-blowing while the other continues to operate, avoiding machine shutdown due to cleaning a single path. The diversion design can effectively distribute the processing pressure when the material volume is large, prevent blockage of a single path, and ensure production continuity.

[0015] The device is equipped with a limit block and a pressing rod. The limit block is compressed by the connecting seat and moves into the interior of the first or second dust collector. The return spring uses its own elasticity to automatically push the limit block into the interior of the connecting seat, thereby fixing the first or second dust collector in place and preventing it from loosening or falling off during operation, thus improving the stability of the device. At the same time, when disassembling or replacing, pressing the pressing rod causes the limit block to retract and move into the interior of the first or second dust collector, making it easy to remove the first or second dust collector from the interior of the connecting seat. The operation is simple and quick, and the practicality is improved.

[0016] The device is equipped with a top plate. When the first or second dust collector is inserted into the connecting seat, the top plate is squeezed down, which drives the support rod and the moving block to compress the energy storage spring. During disassembly and replacement, the energy storage spring drives the moving block and the support rod to reset through its own elasticity, pushes the top plate up, and pushes the first or second dust collector out of the connecting seat, realizing quick disassembly and replacement, and making the operation more time-saving and labor-saving. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the negative pressure pipe, the first dust collector, and the second dust collector of this utility model.

[0019] Figure 3 This is a three-dimensional structural diagram of the connecting seat and the first dust collector of this utility model;

[0020] Figure 4 This is a partial three-dimensional structural diagram of the connecting seat and the first dust collector of this utility model;

[0021] Figure 5 This utility model Figure 4 Enlarged structural diagram at point A in the middle;

[0022] Figure 6 This is a three-dimensional structural diagram of the connecting seat of this utility model after it is separated from the first dust collector.

[0023] In the diagram: 1. Negative pressure pipe; 2. Flash dust collector; 3. Connecting seat; 4. First pneumatic slide gate valve; 5. First dust collector; 6. Second pneumatic slide gate valve; 7. Second dust collector; 8. Third pneumatic slide gate valve; 9. Limiting block; 10. Pressing rod; 11. Pressing spring; 12. Top plate; 13. Return spring; 14. Support rod; 15. Moving block; 16. Storage spring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] This utility model provides the following technical solution: an automatic dust removal device.

[0026] Example 1 addresses the problems in existing technologies where materials easily generate severe dust in a pressureless environment, requiring additional manpower for cleaning, increasing labor costs and intensity. Furthermore, the open material bins are susceptible to external contamination, significantly increasing the probability of material contamination, and these contaminated materials adversely affect subsequent calcination processes. Figure 1 and Figure 2 As shown, this utility model discloses an automatic dust removal device: it includes a negative pressure pipe 1 and two connecting seats 3 arranged above the negative pressure pipe 1. The two connecting seats 3 are respectively connected to a first dust collector 5 and a second dust collector 7 via a first pneumatic slide valve 4 and a second pneumatic slide valve 6. The left end of the negative pressure pipe 1 is also sealed to a flash dust removal box 2. The flash dust removal box 2 is equipped with a collecting auger (not shown in the figure) inside. The collecting auger is connected to the negative pressure pipe 1 and is used to transport materials into the negative pressure pipe 1. The right end of the negative pressure pipe 1 is sealed to a third pneumatic slide valve 8. The backflushing time of the first dust collector 5 and the second dust collector 7 can be centrally and automatically controlled.

[0027] During the dust removal process, the material first enters the flash dust collector 2. A auger (not shown in the figure, existing technology) installed inside the flash dust collector 2 is responsible for pre-mixing and uniformly conveying the material, ensuring its continuous and even entry into the inlet of the negative pressure pipe 1. This ensures stable material entry into the device, preparing for subsequent dust removal and conveying. The material then enters the first dust collector 5 and the second dust collector 7, which are connected by the first pneumatic slide gate valve 4 and the second pneumatic slide gate valve 6, respectively. The first pneumatic slide gate valve 4 and the second pneumatic slide gate valve 6 are independently controlled, enabling the diversion and conveying of the material and preventing blockage due to excessive load on a single path. A third pneumatic slide gate valve 8 is located at the right end of the negative pressure pipe 1 to control the final discharge of the material.

[0028] During the dust removal process, the device maintains a negative pressure environment to effectively prevent material dust from being emitted. The first dust collector 5 and the second dust collector 7 use an alternating back-flushing method for cleaning. Specifically, when the device starts, the second dust collector 7 uses a pump (not shown in the figure, existing technology) to back-flush the negative pressure pipe 1 for 10 to 30 seconds. Simultaneously, the negative pressure pipe 1 and the first and second pneumatic slide valves 4 and 6 are opened to pre-ventilate and disperse dust within the negative pressure pipe 1, preventing material accumulation. After back-flushing, the second dust collector 7 stops working, closes the corresponding second pneumatic slide valve 6, and opens the first pneumatic slide valve 4. Then, the first dust collector 5 is started to perform the same back-flushing operation. The first dust collector 5 and the second dust collector 7 alternate back-flushing, ensuring that while one dust collector is working during back-flushing, the other can continue its dust removal operation, avoiding device shutdown and dust accumulation, and ensuring continuous and stable operation of the device. For example, the backflush time, interval and number of times can be adjusted by a centralized automatic control system, and can be set to 2 to 3 times per hour, each time for about 1 minute.

[0029] After dust removal, the material is conveyed to the right end through negative pressure pipe 1, and finally discharged by the third pneumatic slide valve 8, achieving continuous material conveying and pure discharge. This device not only realizes the automatic separation and removal of dust from the material, ensuring material purity, but also effectively prevents blockage through dual dust collector diversion and alternating backflushing, maintains a negative pressure environment in the device, effectively reduces dust and material loss, and improves dust removal efficiency and the practicality of the device.

[0030] Example 2 differs from Example 1 in that the first dust collector 5 and the second dust collector 7 can be quickly disassembled, positioned, and installed using a quick-release assembly, making the operation more time-saving and labor-saving. The following is disclosed:

[0031] Inside the first dust collector 5, two limiting blocks 9 are slidably mounted via two return springs 13. The outer ends of the two limiting blocks 9 extend through the interior of the connecting seat 3. The outer surfaces of the limiting blocks 9 are inclined, and the two limiting blocks 9 are symmetrically arranged about the vertical centerline of the first dust collector 5. Figure 3 As shown, two pressing rods 10 are slidably installed inside the connecting seat 3, and the inner ends of the two pressing rods 10 are arc-shaped. The inner ends of the two pressing rods 10 correspond to limit blocks 9. One end of two pressing springs 11 is connected to the outer surface of the two pressing rods 10, and the two pressing springs 11 have the same structure. The other ends of the two pressing springs 11 are fixedly connected to the inner wall of the connecting seat 3. Figure 4 and Figure 5As shown, a top plate 12 is attached to the lower part of the first dust collector 5. The top plate 12 is circular and is located inside the connecting seat 3. Two support rods 14 are rotatably mounted below the top plate 12. The two support rods 14 are inclined, and movable blocks 15 are rotatably connected below the two support rods 14. The two movable blocks 15 are slidably mounted inside the connecting seat 3 by means of a storage spring 16. Figure 6 As shown.

[0032] When positioning and installing the first dust collector 5 or the second dust collector 7 is required, simply insert the first dust collector 5 into the connecting seat 3. At this time, the two inclined limiting blocks 9 will retract and move under the pressure of the connecting seat 3, causing the two limiting blocks 9 to retract and move into the interior of the first dust collector 5. Then, the two return springs 13 will automatically spring the two limiting blocks 9 into the interior of the connecting seat 3 using their own elasticity. Figure 3 As shown, the first dust collector 5 can then be positioned and fixed after installation to prevent it from loosening and falling off during later use. When it is necessary to disassemble and replace the first dust collector 5 and the second dust collector 7, simply press the two pressing rods 10 to squeeze the two limiting blocks 9 and retract them, so that the two limiting blocks 9 are squeezed, retracted and moved into the interior of the first dust collector 5 or the second dust collector 7. Figure 4 As shown, the first dust collector 5 or the second dust collector 7 can then be removed from the inside of the connecting seat 3 to disassemble and replace the first dust collector 5 or the second dust collector 7.

[0033] When the first dust collector 5 or the second dust collector 7 is inserted into the connecting seat 3, the inserted first dust collector 5 will simultaneously press against the top plate 12 to descend and retract. Figure 5 As shown, the top plate 12, through two support rods 14, drives the moving block 15 to compress and store force on the two storage springs 16, so that the two storage springs 16 are in a compressed and stored state. During the disassembly and replacement of the first dust collector 5 or the second dust collector 7, the two compressed and stored storage springs 16 will use their own elasticity to reset the two compressed and moved moving blocks 15. Subsequently, the two moving blocks 15 will drive the two support rods 14 to compress the top plate 12 and move it upward. The first dust collector 5 can be pushed out of the connecting seat 3 by the reset and raised top plate 12, so as to realize the quick disassembly and replacement of the first dust collector 5 or the second dust collector 7, which is more time-saving and labor-saving. Figure 6 As shown.

[0034] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic dust removal device, comprising a negative pressure pipe (1) and two connecting seats (3) disposed above the negative pressure pipe (1), wherein a first dust collector (5) and a second dust collector (7) are respectively connected above the two connecting seats (3) via a first pneumatic slide valve (4) and a second pneumatic slide valve (6), and a flash dust removal box (2) is also sealed to the left end of the negative pressure pipe (1); Its features are: The flash dust collector (2) is equipped with a auger, which is connected to the negative pressure pipe (1). The right end of the negative pressure pipe (1) is sealed with a third pneumatic slide valve (8). The backflushing time of the first dust collector (5) and the second dust collector (7) can be centrally and automatically controlled.

2. The device for automatically removing dust according to claim 1, characterized in that: The first dust collector (5) has two limiting blocks (9) slidably installed inside by two reset springs (13), and the outer ends of the two limiting blocks (9) extend through to the interior of the connecting seat (3).

3. The device for automatically removing dust according to claim 2, characterized in that: The outer surfaces of the two limiting blocks (9) are inclined, and the two limiting blocks (9) are symmetrically arranged about the vertical center line of the first dust collector (5).

4. The device for automatically removing dust according to claim 2, characterized in that: The connecting seat (3) has two pressing rods (10) slidably installed inside, and the inner ends of the two pressing rods (10) are arc-shaped, and the inner ends of the two pressing rods (10) correspond to the limit blocks (9).

5. The device for automatically removing dust according to claim 4, characterized in that: The outer sides of the two pressing rods (10) are connected to one end of the two pressing springs (11), and the two pressing springs (11) have the same structure. The other end of the two pressing springs (11) is fixedly connected to the inner wall of the connecting seat (3).

6. The device for automatically removing dust according to claim 1, characterized in that: The first dust collector (5) is attached to a top plate (12) below, and the top plate (12) is round and is located inside the connecting seat (3).

7. The device for automatically removing dust according to claim 6, characterized in that: Two support rods (14) are rotatably mounted below the top plate (12), and the two support rods (14) are inclined. A movable block (15) is rotatably connected below the two support rods (14), and the two movable blocks (15) are slidably mounted inside the connecting seat (3) by means of a storage spring (16).

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