Anti-blocking device in powder conveying process

Abstract

The utility model discloses an anti-blocking device in a powder conveying process, which comprises a pneumatic knocking hammer fixed on the outer wall of a powder hopper or a powder conveying pipeline. The pneumatic knocking hammer comprises a hammer body, a magnetic piston, a spring and a magnetic substrate, one end of the hammer body is open and communicated with the pneumatic cavity, the other end is closed, and a convex edge is fixed on the inner wall of the hammer body relative to the closed end; the magnetic piston is slidably connected into the pneumatic cavity, the spring is located in the pneumatic cavity, one end of the spring sleeves the rod end of the magnetic piston, and the other end of the spring is fixed to the protruding edge. The magnetic substrate is fixed to the inner wall of the open end of the hammer body, and the end face, away from the spring, of the magnetic piston can abut against a panel of the magnetic substrate. According to the utility model, the pneumatic knocking hammer is arranged on the outer wall of the powder hopper or the powder conveying pipeline, so that the phenomena of blockage and arching in the powder conveying process can be effectively prevented; and the field working environment is greatly improved at a relatively low cost, the production efficiency is improved, and a necessary guarantee is provided for production safety.

Description

Technical Field

[0001] This utility model relates to the field of powder conveying technology, and more specifically to an anti-clogging device in the powder conveying process. Background Technology

[0002] Powder conveying is widely used in industrial production, mainly for handling powdery materials. However, powders often experience agglomeration and bridging during transportation due to various factors, which reduces their flowability and consequently affects the continuous feeding of the production line.

[0003] Therefore, how to provide an anti-blocking device that can prevent adhesion, blockage, and arching of powder materials during pipeline, hopper, and silo conveying is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] In view of this, the present invention provides an anti-clogging device in the powder conveying process. By adding a pneumatic hammer to the outer wall of the powder conveying pipeline and the powder hopper, the impact force is transmitted to the pipe and hopper wall by the internal hammer head striking the contact surface. The non-continuous and low-frequency striking method helps to break the arch structure formed by the material, promotes the loosening of the accumulated material, and thus achieves smooth powder conveying.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An anti-clogging device for powder conveying includes a pneumatic hammer.

[0007] The pneumatic hammer is fixed to the outer wall of the powder hopper or the powder conveying pipe.

[0008] The pneumatic hammer includes a hammer body, a magnetic piston, a spring, and a magnetic base plate. One end of the hammer body is open and connected to its pneumatic cavity, while the other end is closed. A protruding edge is fixed to the inner wall of the hammer body relative to its closed end. The magnetic piston is slidably connected inside the pneumatic cavity. The spring is located inside the pneumatic cavity, with one end sleeved on the rod end of the magnetic piston and the other end fixed to the protruding edge. The magnetic base plate is fixed to the inner wall of the hammer body relative to its open end. A pneumatic hole communicating with the pneumatic cavity is opened on the magnetic base plate. The end face of the magnetic piston away from the spring can abut against the panel of the magnetic base plate.

[0009] The beneficial effect of this utility model is that by installing a pneumatic hammer on the outer wall of the powder hopper or powder conveying pipe, the impact force is transmitted to the wall of the powder conveying pipe or powder hopper through the impact of the magnetic piston on the contact surface, causing the accumulated material on the inner wall to loosen, thereby achieving smooth powder conveying and effectively preventing the occurrence of blockage during powder conveying.

[0010] Preferably, the powder hopper or the powder conveying pipe is fixed with a reinforcing steel plate on the outer wall corresponding to the pneumatic hammer.

[0011] Preferably, the pneumatic hammer further includes an end cap, which is bolted to the end face of the hammer body opposite its open end. The end cap has an inner cavity communicating with the pneumatic hole, and the inner cavity of the end cap is connected to a three-way solenoid valve through an air pipe.

[0012] Preferably, a magnet is fixed on the magnetic piston, and the magnet is magnetically connected to the magnetic substrate.

[0013] Preferably, the magnetic piston is fitted with a plurality of piston rings on its outer periphery.

[0014] Preferably, a striking plate is fixed to the inner wall of the closed end of the hammer body, and a pressure relief hole is provided between the striking plate and the outer wall of the hammer body.

[0015] As can be seen from the above technical solution, compared with the prior art, this utility model discloses an anti-clogging device in the powder conveying process. By installing a pneumatic hammer on the outer wall of the powder hopper or powder conveying pipeline, it can effectively prevent the adhesion, blockage, and arching of sodium nitrate powder in the powder conveying pipeline and powder hopper. The striking force of the pneumatic hammer can be adjusted by adjusting the air supply pressure. It consumes less air, has low operating costs, and has good energy-saving effect. This utility model greatly improves the on-site working environment and increases production efficiency at a relatively low cost, providing necessary protection for production safety. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0017] Figure 1 A schematic diagram of the anti-clogging structure for the powder conveying pipeline provided by this utility model;

[0018] Figure 2 A schematic diagram of the anti-clogging structure for the powder hopper provided by this utility model;

[0019] Figure 3 A cross-sectional view of the pneumatic hammer provided by this utility model;

[0020] Figure 4 A cross-sectional view of the pneumatic hammer used in this utility model.

[0021] in,

[0022] 1-Powder hopper; 2-Powder conveying pipe; 3-Pneumatic hammer; 31-Piston ring; 32-Magnetic piston; 33-Spring; 34-Magnet; 35-End cap; 36-Three-way solenoid valve; 37-Magnetic base plate; 38-Pressure relief hole; 39-Striking plate. Detailed Implementation

[0023] 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.

[0024] See appendix Figures 1-3 This utility model discloses an anti-clogging device in the powder conveying process, including a pneumatic hammer 3.

[0025] The pneumatic hammer 3 is fixed to the outer wall of the powder hopper 1 or the powder conveying pipe 2;

[0026] The pneumatic hammer 3 includes a hammer body, a magnetic piston 32, a spring 33, and a magnetic base plate 37. One end of the hammer body is open and connected to its pneumatic cavity, while the other end is closed. A protruding edge is fixed to the inner wall of the hammer body relative to its closed end. The magnetic piston 32 is slidably connected in the pneumatic cavity. The spring 33 is located in the pneumatic cavity, with one end sleeved on the rod end of the magnetic piston 32 and the other end fixed on the protruding edge. The magnetic base plate 37 is fixed to the inner wall of the hammer body relative to its open end. A pneumatic hole communicating with the pneumatic cavity is opened on the magnetic base plate 37. The end face of the magnetic piston 32 away from the spring 33 can abut against the panel of the magnetic base plate 37.

[0027] like Figure 1 and 2 As shown, the pneumatic hammer is fixed to the outer wall of the powder conveying pipe or powder hopper, such as... Figure 3 and 4 As shown, when the pneumatic hammer is not activated, the magnetic piston is in contact with the magnetic base plate. When compressed air is introduced into the pneumatic hammer, the pressure inside the hammer increases. When the pressure inside the hammer exceeds the magnetic force, the magnetic piston ring disengages from the magnetic base plate. Due to the reaction force of the strong magnetic force, a strong impact force is generated. The impact force acts on the powder conveying pipe or powder hopper, and the dust attached to its inner wall can be knocked off by the impact force. After the knocking is completed, the compressed air is discharged, and the magnetic piston will return to its original position under the action of the spring.

[0028] To further optimize the above technical solution and prevent the pneumatic hammer from damaging the wall of the powder conveying pipeline or powder hopper, a reinforcing steel plate is fixed to the outer wall of the powder hopper 1 or the powder conveying pipeline 2 corresponding to the pneumatic hammer 3.

[0029] To further optimize the above technical solution, the pneumatic hammer 3 also includes an end cap 35, which is bolted to the end face of the hammer body relative to its open end. The end cap 35 has an inner cavity that communicates with the pneumatic hole, and the inner cavity of the end cap 35 is connected to a three-way solenoid valve 36 through an air pipe.

[0030] By using a single-way solenoid valve to input compressed gas, the input frequency and time of the compressed gas can be controlled by adjusting the time relay in the electrical control box, thereby reducing or increasing the tapping interval and tapping time.

[0031] To further optimize the above technical solution, a magnet 34 is fixed on the magnetic piston 32, and the magnet 34 is magnetically connected to the magnetic substrate 37.

[0032] The magnet is connected to the magnetic substrate by magnetic force, which allows the magnetic piston to come into contact with the substrate. After being struck, the magnet and spring can reset the magnetic piston.

[0033] To further optimize the above technical solution and improve the service life of the magnetic piston, multiple piston rings 31 are fitted around the outer periphery of the magnetic piston 32.

[0034] To further optimize the above technical solution, a striking plate 39 is fixed to the inner wall of the closed end of the hammer body, and a pressure relief hole 38 is provided between the striking plate 39 and the outer wall of the hammer body. The pressure relief hole can release pressure, thereby ensuring the reset of the magnetic piston.

[0035] The striking principle of this invention is:

[0036] When no compressed air is supplied to the pneumatic hammer, the magnetic piston is firmly fixed to the base plate by the strong magnetic force between the magnet and the base plate. When the three-way solenoid valve is energized, compressed air flows into the pneumatic chamber of the hammer, increasing the pressure. When the pressure exceeds the magnetic force between the magnet and the base plate, the magnetic piston detaches from the base plate at high speed and compresses the spring. The strong magnetic force generates a strong counterforce. The high-speed moving magnetic piston strikes the impact plate, which transmits the impact force to the powder conveying pipe or powder hopper, and knocks off the attached dust with a strong impact. When the three-way solenoid valve is de-energized, the compressed air in the pneumatic chamber is discharged through the pressure relief hole. The spring force slowly moves the magnetic piston closer to the base plate, where it returns to its initial state by the magnetic force between the magnet and the base plate. The pneumatic hammer operates only once per startup, avoiding the destructive effects of excessive vibration.

[0037] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0038] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for preventing blockage during powder conveying, characterized in that, Including pneumatic hammers (3), The pneumatic hammer (3) is fixed to the outer wall of the powder hopper (1) or the powder conveying pipe (2); The pneumatic hammer (3) includes a hammer body, a magnetic piston (32), a spring (33), and a magnetic base plate (37). One end of the hammer body is open and connected to its pneumatic cavity, while the other end is closed. A protruding edge is fixed to the inner wall of the hammer body relative to its closed end. The magnetic piston (32) is slidably connected to the pneumatic cavity. The spring (33) is located in the pneumatic cavity, with one end sleeved on the rod end of the magnetic piston (32) and the other end fixed on the protruding edge. The magnetic base plate (37) is fixed to the inner wall of the hammer body relative to its open end. A pneumatic hole communicating with the pneumatic cavity is opened on the magnetic base plate (37). The end face of the magnetic piston (32) away from the spring (33) can abut against the panel of the magnetic base plate (37).

2. The anti-clogging device for powder conveying process according to claim 1, characterized in that, The powder hopper (1) or the powder conveying pipe (2) is fixed with a reinforcing steel plate on the outer wall corresponding to the pneumatic hammer (3).

3. The anti-clogging device for powder conveying process according to claim 1, characterized in that, The pneumatic hammer (3) also includes an end cap (35), which is bolted to the end face of the hammer body opposite to its open end. The end cap (35) has an inner cavity that communicates with the pneumatic hole. The inner cavity of the end cap (35) is connected to a three-way solenoid valve (36) through an air pipe.

4. The anti-clogging device for powder conveying process according to claim 1, characterized in that, A magnet (34) is fixed on the magnetic piston (32), and the magnet (34) is magnetically connected to the magnetic substrate (37).

5. The anti-clogging device for powder conveying process according to claim 4, characterized in that, The magnetic piston (32) is fitted with multiple piston rings (31) around its outer periphery.

6. The anti-clogging device for powder conveying process according to claim 1, characterized in that, A striking plate (39) is fixed to the inner wall of the closed end of the hammer body, and a pressure relief hole (38) is provided between the striking plate (39) and the outer wall of the hammer body.

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