Negative pressure powder collecting device with storage function

Abstract

The application relates to the dust collecting and storing technical field and discloses a negative pressure powder collecting device with a storing function, which comprises a feeding pipe, a mechanical valve is fixedly installed on the outer surface of the feeding pipe, and a feeding cylinder is fixedly communicated with the bottom end of the feeding pipe. The negative pressure powder collecting device with the storing function is provided with components such as the mechanical valve, the storing cylinder and the pneumatic valve, the mechanical valve is always opened during production, the pneumatic valve is opened during powder collecting, powder flows into a PE bag through a discharging pipe, the pneumatic valve is closed when the PE bag needs to be replaced, the powder stays in the storing cylinder, the storing cylinder has a certain depth, the probability of negative pressure extraction of the powder is reduced, the pneumatic valve is opened after the PE bag is replaced, the temporarily stored powder falls into a new PE bag, the mechanical valve and the pneumatic valve are closed after production, the dry paste powder can be effectively collected and stored in the storing cylinder, non-stop continuous operation is realized, the operation convenience is improved, and the system leakage is reduced due to the double valve sealing.

Description

Technical Field

[0001] This application relates to the field of dust collection and storage technology, specifically a negative pressure dust collection device with storage function. Background Technology

[0002] A negative pressure dust collection device is a device that uses the principle of negative pressure to collect dust. It creates an environment with a pressure lower than that of the outside atmosphere within the system, causing dust-laden gas to be drawn into the device under the action of pressure difference. Through internal filtration and separation structures, the dust is efficiently separated from the airflow and collected, effectively reducing dust spillage, improving the working environment, and reducing the adverse effects of dust on production equipment and products. It is widely used in many dust-generating industrial fields such as chemical, building materials, and food processing.

[0003] However, existing technologies typically employ single mechanical valve powder collection cages. This structure controls the powder's descent solely through a top butterfly valve, requiring a complete shutdown and valve closure during bag replacement, leading to production interruptions. Furthermore, there is a risk of powder leakage due to valve leaks. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides a negative pressure powder collection device with storage function. It has the advantages of effectively collecting and storing dry powder in a storage cylinder, enabling continuous operation without stopping the machine, improving operational convenience, and reducing system leakage due to double valve sealing. This solves the problems of existing technologies that typically only use a top butterfly valve to control the powder falling, which requires a complete shutdown and valve closure when changing bags, causing production interruptions, and the phenomenon of powder leakage due to poor valve sealing.

[0005] To achieve the above objectives, this application provides the following technical solution: a negative pressure powder collection device with storage function, comprising a feed pipe, a mechanical valve fixedly installed on the outer surface of the feed pipe, a feed cylinder fixedly connected to the bottom end of the feed pipe, a storage cylinder fixedly connected to the bottom surface of the feed cylinder, a pneumatic valve fixedly installed at the bottom end of the storage cylinder, a discharge pipe fixedly installed at the output end of the pneumatic valve, a mounting frame fixedly connected to the outer surface of the storage cylinder, a fixing seat fixedly installed on the front side of the mounting frame, and an observation glass fixedly installed on the inner wall of the fixing seat.

[0006] The above solution aims to effectively collect and store the dry powder in a storage container, allowing for direct discharge without additional steps, thus improving operational convenience and reducing system leakage. A mechanical valve is installed on the surface of the feed pipe, and a feed cylinder is located at the bottom of the feed pipe. A storage cylinder is located at the bottom of the feed cylinder, and the feed cylinder and storage cylinder are connected. A pneumatic valve is installed at the bottom of the storage cylinder, and the discharge pipe is connected to the pneumatic valve. During production, the uppermost mechanical valve is normally open. When collecting powder, the pneumatic valve is opened, allowing the powder to pass through the lower... The powder flows into the PE bag below through the feed pipe. When the PE bag needs to be replaced, the pneumatic valve is closed, and the powder will remain in the storage cylinder. Because the storage cylinder has a certain depth, the probability of negative pressure pulling out the powder is greatly reduced. After the PE bag is replaced normally, the pneumatic valve is opened, and the temporarily stored powder will fall into the new PE bag. After production is completed, the mechanical valve and the pneumatic valve at the top are closed at the same time, which can effectively collect the dry powder and store it in the storage cylinder, enabling continuous operation without stopping the machine, improving the convenience of operation, and setting up double valve seals to reduce the leakage of the system.

[0007] Furthermore, a mounting frame is fixedly connected to the outer surface of the feed cylinder, a support frame is fixedly connected to the inner wall of the mounting frame, and a limiting claw arranged at equal intervals is fixedly installed on the outer surface of the support frame. The outer surface of each limiting claw is fixedly installed to the outer surface of the storage cylinder.

[0008] The above scheme fixes the mounting frame to the surface of the feed cylinder, setting it as a fixed connection to achieve the installation of the mounting frame. The support frame is fixed to the inner wall of the mounting frame, and the support legs of the support frame are located below the device. The support frame and the mounting frame provide support for the device. The limiting claw is installed on the outer surface of the support frame and connected to the surface of the storage cylinder, which can improve the stability of the device.

[0009] Furthermore, two mounting rods are fixedly connected to the outer surface of the support frame, and a motor is fixedly mounted on the left side of one of the mounting rods.

[0010] The above method involves setting mounting rods on the outer surface of the support frame and fixing the mounting rods to achieve the installation of the mounting rods. The motor is then fixed to the left side of one of the mounting rods to achieve the installation of the motor.

[0011] Furthermore, the output shaft of the motor is fixedly connected to a bidirectional threaded rod, and the inner wall of each mounting rod is rotatably connected to the outer surface of the bidirectional threaded rod.

[0012] The above solution involves installing a bidirectional threaded rod on the output shaft of the motor and connecting the bidirectional threaded rod to the mounting rod in a rotatable connection. This limits the movement of the bidirectional threaded rod, allowing it to rotate via the motor.

[0013] Furthermore, the outer surface of the bidirectional threaded rod is threaded with two fixing rods, and an arc-shaped rod is fixedly installed on the bottom surface of each fixing rod.

[0014] The above solution involves installing a fixed rod on the surface of a bidirectional threaded rod and setting it as a threaded connection. The rotation of the bidirectional threaded rod allows the two fixed rods to move relative to each other. An arc-shaped rod is installed on the bottom surface of the corresponding fixed rod. The movement of the fixed rod allows the arc-shaped rod to move. The two arc-shaped rods can open the PE bag, eliminating the need for operators to open the PE bag for filling.

[0015] Furthermore, a crossbar and a guide rod are provided below the feed pipe, and the left and right ends of the crossbar and the guide rod are fixedly connected to the side of the corresponding mounting rod that is close to each other.

[0016] The above method involves placing the crossbar and guide rod below the feed pipe, and connecting both ends of the crossbar and guide rod to the corresponding mounting rods to form a fixed connection, thereby achieving the installation of the crossbar and guide rod.

[0017] Furthermore, a sliding groove is provided on the front side of the crossbar, and two sliding blocks are slidably connected to the inner wall of the sliding groove.

[0018] The above scheme involves opening a sliding groove on the front of the crossbar and installing a sliding block on the inner wall of the corresponding sliding groove, setting it as a sliding connection. The contour of the sliding groove is used to limit the movement of the sliding block.

[0019] Furthermore, the front of each sliding block is fixedly connected to the back of the corresponding fixed rod, and the inner wall of each fixed rod is slidably connected to the outer surface of the guide rod.

[0020] The above solution connects the front of the sliding block to the back of the corresponding fixed rod. The connection between the sliding groove and the sliding block limits the movement of the fixed rod. The fixed rod is also connected to the corresponding guide rod, which limits the movement of the other side of the fixed rod, ensuring that the fixed rod can move smoothly.

[0021] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0022] This negative pressure powder collection device with storage function is equipped with mechanical valves, a storage cylinder, and pneumatic valves. During production, the mechanical valve is normally open; during powder collection, the pneumatic valve is opened, allowing powder to flow into PE bags through the feed pipe. When a PE bag needs to be replaced, the pneumatic valve is closed, leaving the powder in the storage cylinder. Because the storage cylinder has a certain depth, the probability of the powder being sucked away by negative pressure is reduced. After replacing the PE bag, the pneumatic valve is opened, and all the temporarily stored powder falls into the new PE bag. After production ends, both the mechanical and pneumatic valves are closed. This allows for the effective collection and storage of dry powder in the storage cylinder, enabling continuous operation without stopping the machine and improving operational convenience. The double valve seal reduces system leakage. A motor rotates a bidirectional threaded rod, which drives two fixed rods to move relative to each other, allowing an arc-shaped rod to open the PE bag. During replacement, the motor rotates in the opposite direction, loosening the opening of the PE bag. The full PE bag is then removed, and the above operation is repeated, with the arc-shaped rod opening the new PE bag. This shortens the time required for each bag replacement and improves work efficiency. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the entire application;

[0024] Figure 2 This is the overall main view structure diagram of this application;

[0025] Figure 3 This is a structural diagram showing the connection relationship between the pneumatic valve and the feed pipe in this application;

[0026] Figure 4 This is a structural diagram showing the connection relationship between the mounting frame and the fixing base in this application;

[0027] Figure 5 This is a structural diagram showing the connection relationship between the support frame and the limiting claw in this application;

[0028] Figure 6 This is a structural diagram showing the connection relationship between the bidirectional threaded rod and the fixed rod in this application.

[0029] In the picture:

[0030] 1. Feed pipe; 2. Mechanical valve; 3. Feed cylinder; 4. Storage cylinder; 5. Pneumatic valve; 6. Discharge pipe; 7. Mounting frame; 8. Fixing seat; 9. Observation glass; 10. Mounting bracket; 11. Support frame; 12. Limiting claw; 13. Mounting rod; 14. Motor; 15. Bidirectional threaded rod; 16. Fixing rod; 17. Arc rod; 18. Crossbar; 19. Sliding block; 20. Sliding groove; 21. Guide rod. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] Please see Figure 2 , Figure 3 and Figure 4 This embodiment of a negative pressure powder collection device with storage function includes a feed pipe 1, a mechanical valve 2 fixedly installed on the outer surface of the feed pipe 1, a feed cylinder 3 fixedly connected to the bottom end of the feed pipe 1, a storage cylinder 4 fixedly connected to the bottom surface of the feed cylinder 3, a pneumatic valve 5 fixedly installed at the bottom end of the storage cylinder 4, a discharge pipe 6 fixedly installed at the output end of the pneumatic valve 5, a mounting frame 7 fixedly connected to the outer surface of the storage cylinder 4, a fixing seat 8 fixedly installed on the front of the mounting frame 7, and an observation glass 9 fixedly installed on the inner wall of the fixing seat 8.

[0033] Please see Figure 1 , Figure 2 and Figure 5 A mounting frame 10 is fixedly connected to the outer surface of the feed cylinder 3, and a support frame 11 is fixedly connected to the inner wall of the mounting frame 10. Equally spaced limiting claws 12 are fixedly installed on the outer surface of the support frame 11. The outer surface of each limiting claw 12 is fixedly installed to the outer surface of the storage cylinder 4. The mounting frame 10 is fixed to the surface of the feed cylinder 3, forming a fixed connection, thus enabling the installation of the mounting frame 10. The support frame 11 is fixed to the inner wall of the mounting frame 10, and the support legs of the support frame 11 are located below the device. The support frame 11 and the mounting frame 10 provide support for the device. The limiting claws 12 are installed on the outer surface of the support frame 11 and connected to the surface of the storage cylinder 4, which improves the stability of the device.

[0034] Please see Figure 2 , Figure 5 and Figure 6 Two mounting rods 13 are fixedly connected to the outer surface of the support frame 11. A motor 14 is fixedly installed on the left side of one of the mounting rods 13. The mounting rods 13 are set on the outer surface of the support frame 11 and fixed to achieve the installation of the mounting rods 13. The motor 14 is fixed on the left side of one of the mounting rods 13 to achieve the installation of the motor 14.

[0035] Please see Figure 6The output shaft of the motor 14 is fixedly connected to a bidirectional threaded rod 15. The inner wall of each mounting rod 13 is rotatably connected to the outer surface of the bidirectional threaded rod 15. The bidirectional threaded rod 15 is installed on the output shaft of the motor 14 and connected to the mounting rod 13 in a rotatable connection to limit the bidirectional threaded rod 15. The motor 14 enables the bidirectional threaded rod 15 to rotate.

[0036] Please see Figure 6 The outer surface of the bidirectional threaded rod 15 is threaded with two fixed rods 16. Each fixed rod 16 has an arc-shaped rod 17 fixedly installed on its bottom surface. The fixed rods 16 are installed on the surface of the bidirectional threaded rod 15 and set as a threaded connection. The rotation of the bidirectional threaded rod 15 allows the two fixed rods 16 to move relative to each other. The arc-shaped rod 17 is installed on the bottom surface of the corresponding fixed rod 16. The movement of the fixed rods 16 allows the arc-shaped rod 17 to move. The two arc-shaped rods 17 can open the PE bag, eliminating the need for operators to open the PE bag for filling.

[0037] Please see Figure 6 A crossbar 18 and a guide rod 21 are provided below the feed pipe 1. The left and right ends of the crossbar 18 and the guide rod 21 are fixedly connected to the side of the corresponding mounting rod 13 that is close to each other. The crossbar 18 and the guide rod 21 are set below the feed pipe 1, and the two ends of the crossbar 18 and the guide rod 21 are connected to the corresponding mounting rod 13 to form a fixed connection, thereby realizing the installation of the crossbar 18 and the guide rod 21.

[0038] Please see Figure 6 A sliding groove 20 is provided on the front side of the crossbar 18. Two sliding blocks 19 are slidably connected to the inner wall of the sliding groove 20. The sliding groove 20 is provided on the front side of the crossbar 18, and the sliding blocks 19 are installed on the inner wall of the corresponding sliding groove 20 to form a sliding connection. The sliding blocks 19 are limited by the contour of the sliding groove 20.

[0039] Please see Figure 6 Each sliding block 19 has its front side fixedly connected to the back side of the corresponding fixed rod 16. The inner wall of each fixed rod 16 is slidably connected to the outer surface of the guide rod 21. By connecting the front side of the sliding block 19 to the back side of the corresponding fixed rod 16 and the sliding groove 20 to the sliding block 19, the fixed rod 16 is limited when it moves. The fixed rod 16 is also connected to the corresponding guide rod 21, which limits the other side of the fixed rod 16, ensuring that the fixed rod 16 can move smoothly.

[0040] This embodiment describes a negative pressure powder collection device with storage function. It includes a mechanical valve 2, a storage cylinder 4, and a pneumatic valve 5. During production, the mechanical valve 2 is normally open. When collecting powder, the pneumatic valve 5 is opened, and the powder flows into a PE bag through the feed pipe 6. When the PE bag needs to be replaced, the pneumatic valve 5 is closed, and the powder remains in the storage cylinder 4. Because the storage cylinder 4 has a certain depth, the probability of the powder being drawn away by negative pressure is reduced. After replacing the PE bag, the pneumatic valve 5 is opened, and all the temporarily stored powder falls into the new PE bag. After production is completed, both the mechanical valve 2 and the pneumatic valve 5 are closed. The dry powder can be effectively collected and stored in the storage cylinder 4, enabling continuous operation without stopping the machine and improving operational convenience. The double valve seal reduces system leakage. The motor 14 rotates the bidirectional threaded rod 15, which drives the two fixed rods 16 to move relative to each other, thereby allowing the arc rod 17 to open the PE bag. When changing the bag, the motor 14 rotates in the opposite direction, which loosens the opening of the PE bag. The full PE bag is then removed, and the above operation is repeated. The new PE bag can be opened by the arc rod 17, which can shorten the time for changing bags and improve work efficiency.

[0041] It should be noted that the mechanical valve 2 is a mechanical butterfly valve, which can realize the opening and closing of the feed pipe 1 to feed the feed cylinder 3. The pneumatic valve 5 controls the opening and closing of the discharge pipe 6. The motor 14 is a servo motor, which can realize the forward and reverse rotation of the bidirectional threaded rod 15, thereby controlling the mutual approach and distance of the arc rods 17.

[0042] The working principle of the above embodiments is as follows:

[0043] During operation, the operator opens mechanical valve 2, which is normally open. When powder collection is needed, pneumatic valve 5 is opened, allowing the powder to fall directly through the feed pipe 6 into the PE bag below. When the PE bag is full and needs to be replaced, pneumatic valve 5 is closed, preventing the powder from falling further and leaving it in the storage cylinder 4. Due to the depth of the storage cylinder 4, the probability of negative pressure drawing away the powder is greatly reduced. The starting motor 14 reverses the bidirectional threaded rod 15, causing the two arc-shaped rods 17 to move relative to each other, releasing the tension on the PE bag opening and allowing the full PE bag to be filled. The bag is removed, and a new PE bag is placed between the two arc-shaped rods 17. The motor 14 drives the bidirectional threaded rod 15 to rotate forward, so that the arc-shaped rods 17 can tighten the new PE bag, which can shorten the time of a single bag change and improve work efficiency. At this time, the pneumatic valve 5 is opened again, and all the temporarily stored powder falls into the new PE bag. The storage condition inside the storage cylinder 4 can be easily observed through the observation glass 9, so that the dry powder can be effectively collected and stored in the storage cylinder 4, realizing continuous operation without stopping the machine, improving the convenience of operation, and the double valve seal reduces the leakage of the system.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0045] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A negative pressure powder collection device with storage function, comprising a feed pipe (1), characterized in that: A mechanical valve (2) is fixedly installed on the outer surface of the feed pipe (1). A feed cylinder (3) is fixedly connected to the bottom end of the feed pipe (1). A storage cylinder (4) is fixedly connected to the bottom surface of the feed cylinder (3). A pneumatic valve (5) is fixedly installed at the bottom end of the storage cylinder (4). A discharge pipe (6) is fixedly installed at the output end of the pneumatic valve (5). A mounting frame (7) is fixedly connected to the outer surface of the storage cylinder (4). A fixing seat (8) is fixedly installed on the front side of the mounting frame (7). An observation glass (9) is fixedly installed on the inner wall of the fixing seat (8).

2. The negative pressure powder collection device with storage function according to claim 1, characterized in that: The outer surface of the feed cylinder (3) is fixedly connected to the mounting frame (10), and the inner wall of the mounting frame (10) is fixedly connected to the support frame (11). The outer surface of the support frame (11) is fixedly installed with equidistant limiting claws (12), and the outer surface of each limiting claw (12) is fixedly installed with the outer surface of the storage cylinder (4).

3. The negative pressure powder collection device with storage function according to claim 2, characterized in that: Two mounting rods (13) are fixedly connected to the outer surface of the support frame (11), and a motor (14) is fixedly installed on the left side of one of the mounting rods (13).

4. The negative pressure powder collection device with storage function according to claim 3, characterized in that: The output shaft of the motor (14) is fixedly connected to a bidirectional threaded rod (15), and the inner wall of each mounting rod (13) is rotatably connected to the outer surface of the bidirectional threaded rod (15).

5. A negative pressure powder collecting device with storage function according to claim 4, characterized in that: The outer surface of the bidirectional threaded rod (15) is threaded with two fixed rods (16), and an arc-shaped rod (17) is fixedly installed on the bottom surface of each fixed rod (16).

6. A negative pressure powder collection device with storage function according to claim 3, characterized in that: The feed pipe (1) is provided with a crossbar (18) and a guide rod (21) below it. The left and right ends of the crossbar (18) and the guide rod (21) are fixedly connected to the side of the corresponding mounting rod (13) that is close to each other.

7. A negative pressure powder collecting device with storage function according to claim 6, characterized in that: The front of the crossbar (18) is provided with a sliding groove (20), and two sliding blocks (19) are slidably connected to the inner wall of the sliding groove (20).

8. A negative pressure powder collecting device with storage function according to claim 7, characterized in that: The front of each sliding block (19) is fixedly connected to the back of the corresponding fixed rod (16), and the inner wall of each fixed rod (16) is slidably connected to the outer surface of the guide rod (21).

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