Ammonium perchlorate drying tail gas microparticle recovery device

Abstract

The utility model discloses an ammonium perchlorate dry tail gas microparticle recovery device, which relates to the technical field of ammonium perchlorate tail gas recovery and comprises a recovery shell, an exhaust pipe is arranged in the middle of the top surface of the recovery shell, a filter screen is fixedly connected to the bottom of the inner wall of the exhaust pipe, and the filter screen is a dust removal filter bag; two connecting strips are fixedly arranged at the bottom of the inner wall of the exhaust pipe. According to the tail gas recovery device, in the tail gas emission process, part of unpurified particles are blocked in the recovery shell by the filter screen, pollution of the particles to air is reduced, the tail gas treatment process is more stable and reliable through the filter screen, and subsequent device faults and shutdown caused by the particle dust problem are reduced; through cooperation of the connecting strip and the knocking ball, the knocking ball swings to knock the filter screen, the mechanical vibration assists in removing particles, cleaning is convenient, the particles on the filter screen can be removed more thoroughly, the removing efficiency is high, and the air permeability of the filter screen can be kept by removing the particles on the filter screen in time.

Description

Technical Field

[0001] This utility model relates to the field of ammonium perchlorate tail gas recovery technology, and in particular to a microparticle recovery device for ammonium perchlorate drying tail gas. Background Technology

[0002] Ammonium perchlorate drying exhaust gas mainly refers to the waste gas generated during certain industrial processes using ammonium perchlorate. Because ammonium perchlorate is an inorganic compound with strong oxidizing properties, its drying process may involve a series of chemical reactions and physical changes, resulting in specific exhaust gas components. When discharged, the ammonium perchlorate drying exhaust gas contains dust particles, necessitating the use of a particulate matter recovery device.

[0003] Existing ammonium perchlorate drying exhaust gas particulate recovery devices typically require external devices or removal for cleaning of the internal filter screen. This cleaning method cannot completely remove particles from the filter screen, has low cleaning efficiency, cannot ensure the air permeability of the filter screen, and the particles on the filter screen are not easy to collect during cleaning, resulting in waste of resources.

[0004] Therefore, it is necessary to propose a microparticle recovery device for ammonium perchlorate drying tail gas to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a microparticle recovery device for ammonium perchlorate drying tail gas, which solves the problem that the internal filter screen needs to be cleaned by external devices or by disassembly, which is inconvenient. At the same time, this cleaning method cannot completely remove the particles on the filter screen, resulting in low cleaning efficiency and failing to ensure the air permeability of the filter screen. Furthermore, the particles on the filter screen are not easy to collect during cleaning, causing a waste of resources.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a microparticle recovery device for ammonium perchlorate drying tail gas, comprising a recovery shell, an exhaust pipe provided in the middle of the top surface of the recovery shell, and a filter screen fixedly connected to the bottom of the inner wall of the exhaust pipe, wherein the filter screen is a dust removal filter bag;

[0007] Two connecting strips are fixedly installed at the bottom of the inner wall of the exhaust pipe. A striking ball is fixedly connected to one end of the two connecting strips close to each other. The connecting strips are elastic.

[0008] Preferably, the connecting strip and the striking ball are located on the top surface of the filter screen.

[0009] Preferably, the bottom of the recycling shell is connected to a feeding shell, and multiple support legs are fixedly connected to the outer wall of the feeding shell.

[0010] Preferably, the outer periphery of the top of the recovery shell is connected to an air inlet pipe, which is arranged in an arc shape.

[0011] Preferably, the bottom of the exhaust pipe is located inside the recovery shell.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. In this utility model, during the exhaust gas emission process, some unpurified particles are blocked inside the recovery shell by the filter screen, reducing the pollution of the air by the particles. The filter screen makes the exhaust gas treatment process more stable and reliable, reducing the failure and shutdown of subsequent devices caused by particulate dust problems.

[0014] 2. Through the cooperation of the connecting strip and the striking ball, the striking ball swings to strike the filter screen. This mechanical vibration helps to remove particles, making cleaning convenient and more thorough. It can remove particles from the filter screen with high cleaning efficiency. By removing particles from the filter screen in a timely manner, the air permeability of the filter screen can be maintained.

[0015] 3. The filter screen plays a role in collecting particles during the exhaust gas emission process. With the cooperation of components, ammonium perchlorate particles can be recycled and reused, improving resource utilization. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the ammonium perchlorate drying tail gas microparticle recovery device of this utility model.

[0017] Figure 2 This is a three-dimensional cross-sectional schematic diagram of the ammonium perchlorate drying tail gas microparticle recovery device of this utility model.

[0018] Figure 3 This is a partial planar cross-sectional schematic diagram of the ammonium perchlorate drying tail gas microparticle recovery device of this utility model.

[0019] Figure 4 This is a partial planar cross-sectional schematic diagram of the ammonium perchlorate drying tail gas microparticle recovery device at the end of the recycling process of this utility model.

[0020] In the diagram: 1. Recycling shell; 11. Feeding shell; 12. Support leg; 13. Air inlet pipe;

[0021] 2. Exhaust pipe; 21. Filter screen; 22. Connecting strip; 23. Striking ball. Detailed Implementation

[0022] 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.

[0023] This utility model addresses the problems of internal filters requiring external devices or disassembly for cleaning, which is inconvenient. Furthermore, this cleaning method cannot thoroughly remove particles from the filter, resulting in low efficiency and compromised air permeability. Additionally, particles are difficult to collect during cleaning, leading to resource waste. This invention provides a solution... Figures 1-4 The ammonium perchlorate drying exhaust gas particulate recovery device shown includes a recovery shell 1. An exhaust pipe 2 is installed in the middle of the top surface of the recovery shell 1. A filter screen 21, which is a dust removal filter bag, is fixedly connected to the bottom of the inner wall of the exhaust pipe 2. The ammonium perchlorate drying exhaust gas enters the recovery shell 1 through the inlet pipe 13. The ammonium perchlorate drying exhaust gas flows in a spiral shape along the inner wall of the recovery shell 1, forming a downward rotating outer vortex. The particulate matter moves downward under the action of centrifugal force and falls to the bottom for recovery. The purified gas forms an upward inner vortex and is discharged from the recovery shell 1 through the exhaust pipe 2. During the exhaust process, some unpurified particles are blocked inside the recovery shell 1 by the filter screen 21, reducing the pollution of the air by particles. The filter screen 21 makes the exhaust gas treatment process more stable and reliable, reducing the failure and shutdown of subsequent devices caused by particulate dust problems.

[0024] Furthermore, two connecting strips 22 are fixedly installed at the bottom of the inner wall of the exhaust pipe 2. A striking ball 23 is fixedly connected to one end of each connecting strip 22, which are close to each other. The connecting strips 22 are elastic. The filter screen 21 flips upwards under the influence of the rising gas (as shown in the attached image). Figure 3 As shown in the attached diagram, the filter screen 21 flips upward, pushing the connecting bar 22 upward. The connecting bar 22 then moves the striking ball 23 on it. After the recycling process is completed, the connecting bar 22 returns to its original position. Due to the elasticity of the connecting bar 22, the striking ball 23 on it swings back and forth, striking the filter screen 21 (as shown in the attached diagram). Figure 4 As shown in the diagram, the particles on the filter screen 21 fall off. During the exhaust gas emission process, the filter screen 21 plays a role in collecting particles. Subsequently, with the cooperation of the components, the ammonium perchlorate particles can be recycled and reused, improving resource utilization. This mechanical vibration-assisted particle removal is convenient and can more thoroughly remove particles from the filter screen 21 with high removal efficiency. By timely removing particles from the filter screen 21, the air permeability of the filter screen 21 can be maintained.

[0025] It should be noted that some of the ammonium perchlorate drying exhaust gas is heated. When encountering such gas, a waste heat recovery structure can be installed at the top of exhaust pipe 2. The waste heat recovery structure is a mature existing technology and will not be elaborated here. The heat energy can be recovered and utilized through the waste heat recovery structure to avoid waste of resources.

[0026] In this invention, an air inlet pipe 13 is connected to the outer periphery of the top of the recovery shell 1. The air inlet pipe 13 is arc-shaped. The dry exhaust gas enters the recovery shell 1 through the air inlet pipe 13. Due to the arc-shaped arrangement of the air inlet pipe 13, the incoming dry air flows in a spiral shape. The airflow generates a strong rotational motion inside the recovery shell 1, thereby causing the particles to separate from the dry air.

[0027] It should be noted that the intake pipe 13 is connected to the dry air inlet.

[0028] In this invention, the connecting strip 22 and the striking ball 23 are located on the top surface of the filter screen 21; the elastic setting of the connecting strip 22 generates vibration under the action of wind pressure or a specific mechanism, which is transmitted to the filter screen 21 through the connecting strip 22, causing the filter screen 21 to generate slight vibration, thereby causing the particles on the filter screen 21 to fall off.

[0029] It should be noted that the bottom of the recycling shell 1 is connected to the discharge shell 11, and multiple support legs 12 are fixedly connected to the outer wall of the discharge shell 11. The particles in the recycling shell 1 are discharged through the discharge shell 11. A discharge pipe is installed below the discharge shell 11, and a manual valve is installed on the pipe. The manual valve is a mature technology in the prior art, which is not shown in the figure and will not be described in detail here. The support legs 12 help support the device.

[0030] In this invention, the bottom of the exhaust pipe 2 is located inside the recovery shell 1; the dry air rotates downward and then exits the recovery shell 1 along the exhaust pipe 2.

Claims

1. A particulate matter recovery device for ammonium perchlorate drying tail gas, comprising a recovery shell (1), characterized in that: An exhaust pipe (2) is provided in the middle of the top surface of the recycling shell (1), and a filter screen (21) is fixedly connected to the bottom of the inner wall of the exhaust pipe (2). The filter screen (21) is a dust removal filter bag. Two connecting strips (22) are fixedly installed at the bottom of the inner wall of the exhaust pipe (2). The two connecting strips (22) are close to each other and a striking ball (23) is fixedly connected to one end. The connecting strips (22) are elastic.

2. The ammonium perchlorate drying tail gas particulate recovery device according to claim 1, characterized in that: The connecting strip (22) and the striking ball (23) are located on the top surface of the filter screen (21).

3. The ammonium perchlorate drying tail gas particulate recovery device according to claim 1, characterized in that: The bottom of the recycling shell (1) is connected to the feeding shell (11), and multiple support legs (12) are fixedly connected to the outer wall of the feeding shell (11).

4. The ammonium perchlorate drying tail gas particulate recovery device according to claim 1, characterized in that: The top outer periphery of the recovery shell (1) is connected to an air inlet pipe (13), which is arranged in an arc shape.

5. The ammonium perchlorate drying tail gas particulate recovery device according to claim 1, characterized in that: The bottom of the exhaust pipe (2) is located inside the recovery shell (1).

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