Powder conveying anti-blocking device

Abstract

The utility model discloses a powder conveying anti -blocking device relates to powder conveying technical field, including powder conveying pipe, powder conveying pipe includes the pipe body, the top of pipe body is fixedly connected with the protective cover, the top of protective cover is established with the air hole, the surface fixedly connected with control panel of protective cover. The utility model discloses through spiral pushing and airflow disturbance synergistic effect break up agglomeration, prevent jam, motor drive first bevel gear, second bevel gear transmission, drive rotating shaft and the spiral blade rotation on connecting rod, and the spiral blade is overlapped with the inner wall of pipe body, can scrape off adhering material and push powder, simultaneously, the air pump is supplied with the air to the air outlet ring through the gas pipe, annular gas supply pipe and gas supply branch pipe, and the air outlet hole of the air outlet ring circumferential reverse spouts airflow, and the powder agglomeration state is broken, and double -effect reduces the accumulation jam from the root.

Description

Technical Field

[0001] This utility model relates to the field of powder conveying technology, and specifically to a powder conveying anti-blocking device. Background Technology

[0002] Traditional powder conveying devices are widely used in chemical, building materials, and food processing industries. Their core function is to transfer powdered materials such as pigments, cement powder, and flour from storage equipment to processing or storage stages via conveying pipes. They are key auxiliary equipment connecting upstream and downstream processes in industrial production. Most traditional devices rely on simple spiral pushing or gravity conveying structures to achieve basic powder transfer, meet the conveying needs of low-precision and low-moisture powders, and ensure the initial continuity of the production process.

[0003] However, when conveying hygroscopic, fine-particle powders, such as talc and food additives, traditional devices cannot break up powder agglomerations using only a single pushing structure. The material easily adheres to the inner wall of the pipe and accumulates, forming blockages. Furthermore, the lack of real-time monitoring components means that blockages can only be detected after the conveying is interrupted. Cleaning requires stopping the machine and disassembling the pipe, which not only extends the production cycle but also increases labor costs and equipment wear due to frequent disassembly. It is difficult to meet the needs of efficient and continuous conveying of high-humidity, fine-powder materials. Utility Model Content

[0004] This invention provides a powder conveying anti-blocking device to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A powder conveying anti-clogging device includes a powder conveying pipe, the powder conveying pipe including a pipe body, a protective cover fixedly connected to the top of the pipe body, a vent hole on the top of the protective cover, and a control panel fixedly connected to the surface of the protective cover; a spiral pushing mechanism including a motor, the surface of the motor being fixedly connected to the surface of the pipe body, a first bevel gear fixedly connected to one end of the motor shaft, a second bevel gear meshing with the surface of the first bevel gear, a rotating shaft fixedly connected to one side of the second bevel gear, a protective tube provided on the surface of the first and second bevel gears, and the end of the protective tube being fixedly connected to the inner wall of the pipe body; and an airflow disturbance mechanism including an air pump installed inside the protective cover, the air outlet of the air pump being connected to an air supply pipe, and an annular air supply pipe being connected to the surface of the air supply pipe through a pipeline.

[0007] A further improvement of this utility model is that the spiral pushing mechanism further includes a connecting rod, one end of which is fixedly connected to the surface of the rotating shaft.

[0008] A further improvement of this utility model is that a spiral blade is fixedly connected to the other end of the connecting rod surface, and the surface of the spiral blade overlaps with the inner wall of the tube.

[0009] A further improvement of this utility model is that: the surfaces at both ends of the rotating shaft are rotatably connected to fixing members, and the ends of the fixing members are fixedly connected to the inner wall of the tube.

[0010] A further improvement of the present invention is that the airflow disturbance mechanism further includes an air supply branch pipe, one end of which is connected to the interior of the annular air supply pipe, and the other end of which is connected to an air outlet ring.

[0011] A further improvement of this utility model is that the surface of the air outlet ring is fixedly connected to the inner wall of the tube, and the surface of the air outlet ring is uniformly provided with air outlet holes along the circumferential direction.

[0012] A further improvement of this utility model is that the cross-section of the air outlet ring is a right trapezoid, and a sensor assembly is fixedly connected to the surface of the air outlet ring, the sensor assembly including a pressure sensor and a humidity sensor.

[0013] A further improvement of this utility model is that: both the pressure sensor and the humidity sensor are electrically connected to the control panel, and three sets of the air outlet ring are arranged along the length of the inner wall of the pipe.

[0014] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0015] This invention provides a powder conveying anti-clogging device. It breaks up agglomerates and prevents blockages through the combined action of spiral pushing and airflow disturbance. A motor drives the first and second bevel gears, which in turn rotate the spiral blades on the rotating shaft and connecting rod. The spiral blades overlap with the inner wall of the pipe, scraping off adhering materials and pushing the powder. Simultaneously, an air pump supplies air to the outlet ring through an air supply pipe, an annular air supply pipe, and a supply branch pipe. Airflow is ejected from the reverse-directional air outlet holes on the circumference of the outlet ring, disrupting the powder agglomeration. This dual action reduces accumulation and blockage at the source. Furthermore, the sensor components on the outlet ring, including pressure and humidity sensors, monitor the pressure and humidity inside the pipe in real time. The data is transmitted to the control panel, providing early warning and initiating anti-blockage procedures. This eliminates the need to stop and disassemble the pipe after conveying is interrupted, shortening the production cycle and avoiding equipment wear and increased labor costs caused by frequent disassembly. It stably adapts to the high-efficiency continuous conveying requirements of high-humidity, fine powder materials. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2This is a schematic diagram of the internal structure of the protective cover of this utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the tube body of this utility model;

[0019] Figure 4 This is a schematic diagram of the spiral pushing mechanism of this utility model;

[0020] Figure 5 This is a schematic diagram of part of the airflow disturbance mechanism of this utility model;

[0021] Figure 6 This is a schematic diagram of the spiral pushing mechanism of this utility model.

[0022] In the diagram: 11. Pipe body; 12. Protective cover; 13. Vent hole; 14. Control panel; 21. Motor; 22. First bevel gear; 23. Second bevel gear; 24. Rotating shaft; 25. Connecting rod; 26. Helical blade; 27. Protective pipe; 31. Air pump; 32. Air supply pipe; 33. Annular air supply pipe; 34. Air supply branch pipe; 35. Air outlet ring; 36. Air outlet; 37. Sensor assembly. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to embodiments:

[0024] Example 1, as Figures 1-6 As shown, this utility model provides a powder conveying anti-blocking device, including a powder conveying pipe, the powder conveying pipe including a pipe body 11, a protective cover 12 fixedly connected to the top of the pipe body 11, a vent hole 13 opened on the top of the protective cover 12, and a control panel 14 fixedly connected to the surface of the protective cover 12; a spiral pushing mechanism, the spiral pushing mechanism including a motor 21, the surface of the motor 21 fixedly connected to the surface of the pipe body 11, a first bevel gear 22 fixedly connected to one end of the motor 21 shaft, a second bevel gear 23 meshing with the surface of the first bevel gear 22, a rotating shaft 24 fixedly connected to one side of the second bevel gear 23, a protective tube 27 provided on the surface of the first bevel gear 22 and the second bevel gear 23, the end of the protective tube 27 fixedly connected to the inner wall of the pipe body 11; an airflow disturbance mechanism, the airflow disturbance mechanism including an air pump 31, the air pump 31 installed inside the protective cover 12, the air outlet end of the air pump 31 connected to an air supply pipe 32, and the surface of the air supply pipe 32 connected to an annular air supply pipe 33 through a pipe.

[0025] In this embodiment, before conveying, the parameters are set through the control panel 14 on the surface of the protective cover 12 on the top of the pipe body 11: the normal pressure range inside the pipe is preset, such as 0.1-0.2MPa, and the safe humidity threshold of the material is set, such as ≤60%. The sensor assembly 37, which includes a pressure sensor and a humidity sensor, is started. The sensors are fixed on the surface of the air outlet ring 35. The three sets of air outlet rings are evenly distributed along the length of the pipe body, which can collect pressure and material humidity data at different positions inside the pipe from all directions. The data is transmitted to the control panel in real time, and the display screen displays the initial state synchronously. After ensuring that there are no abnormalities, the conveying program is started. The air pump 31 inside the protective cover and the external motor 21 enter the standby state. The vent 13 on the top of the protective cover can balance the internal air pressure and avoid heat accumulation when the air pump is running. After starting, the spiral pushing mechanism runs first: the motor 21 is a speed-regulating motor to adapt to different powder flow rates.

[0026] Example 2, as Figures 1-6 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the spiral pushing mechanism further includes a connecting rod 25, one end of the connecting rod 25 is fixedly connected to the surface of the rotating shaft 24, and the other end of the surface of the connecting rod 25 is fixedly connected to a spiral blade 26. The surface of the spiral blade 26 overlaps with the inner wall of the tube body 11. Fixing members are rotatably connected to the surfaces of both ends of the rotating shaft 24, and the ends of the fixing members are fixedly connected to the inner wall of the tube body 11. The airflow disturbance mechanism further includes an air supply branch pipe 34, one end of the air supply branch pipe 34 is connected to the interior of the annular air supply pipe 33, and the other end of the air supply branch pipe 34 is connected to an air outlet ring 35.

[0027] In this embodiment, a speed-regulating motor 21 is selected to adapt to different powder flow rates. When energized, the motor rotates, and its shaft drives the first helical gear 22 to rotate. Through gear meshing, the second helical gear 23 rotates synchronously. The rotating shaft 24 on one side of the second helical gear rotates with the gear. Both ends of the rotating shaft are fixed to the inner wall of the tube 11 by fixing members. The fixing members provide stable support for the rotating shaft and prevent it from shaking due to centrifugal force. The connecting rod 25 on the surface of the rotating shaft drives the spiral blade 26 at the other end to rotate along the axis of the tube. The surface of the spiral blade is tightly attached to the inner wall of the tube. During the rotation, the spiral blade not only pushes the powder forward along the tube through the spiral structure, but also scrapes off the hygroscopic powder attached to the inner wall of the tube, avoiding the gradual accumulation of material on the tube wall and forming a blockage, thus reducing the risk of blockage from the source of the conveying process.

[0028] Example 3, as Figures 1-6As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the surface of the air outlet ring 35 is fixedly connected to the inner wall of the pipe body 11, the surface of the air outlet ring 35 is evenly provided with air outlet holes 36 along the circumferential direction, the cross section of the air outlet ring 35 is a right trapezoid, the surface of the air outlet ring 35 is fixedly connected with a sensor assembly 37, the sensor assembly 37 includes a pressure sensor and a humidity sensor, both of which are electrically connected to the control panel 14, and the air outlet ring 35 is provided with three sets along the length direction of the inner wall of the pipe body 11.

[0029] In this embodiment, the airflow disturbance mechanism is activated synchronously with the spiral push: the air pump 31 outputs compressed air, which is diverted to the annular air supply pipe 33 via the air supply pipe 32 at the air outlet end, and then transported to the air outlet ring 35 through multiple sets of air supply branch pipes 34; the air outlet ring has a right-angled trapezoidal cross-section, which reduces the obstruction to the normal flow of powder, and allows the air outlet holes 36 opened along the circumferential direction on the surface to spray airflow in all directions, impacting and breaking up powder agglomerates that are prone to moisture absorption, dispersing large agglomerates into fine particles. At the same time, the airflow can help blow off the trace amounts of powder remaining on the pipe wall, forming a double anti-clogging effect with the wall scraping action of the spiral blades. It is especially suitable for conveying fine-particle powders such as talc powder and food additives. During the conveying process, the sensor component 37 continuously monitors It also transmits data: If the control panel detects that the pressure inside the pipe exceeds the preset threshold, it will indicate that a blockage may occur, or that the material humidity is higher than the safety threshold, indicating that the powder is prone to moisture absorption and agglomeration. It will immediately trigger the linkage mechanism to automatically increase the speed of motor 21 and accelerate the scraping and pushing efficiency of spiral blade 26; at the same time, it will increase the outlet pressure of air pump 31 and strengthen the airflow disturbance intensity of air outlet 36, thus doubly strengthening the anti-blockage and clearing effect. Through real-time monitoring and dynamic adjustment, it ensures that the powder is always in a stable conveying state; after the control panel displays that the pressure and humidity have returned to normal, the equipment will automatically return to the normal operating parameters, which not only ensures the efficient and continuous conveying of easily hygroscopic and fine-particle-size powders, but also avoids the equipment wear and tear and increased labor costs caused by frequent disassembly.

[0030] The working principle of this powder conveying anti-blocking device will be explained in detail below.

[0031] like Figures 1-6As shown, before conveying, the parameters are set via the control panel 14 on the surface of the protective cover 12 at the top of the pipe body 11: the normal pressure range inside the pipe is preset, such as 0.1-0.2MPa, and the safe humidity threshold of the material is set, such as ≤60%. The sensor assembly 37, which includes a pressure sensor and a humidity sensor, is started. The sensors are fixed to the surface of the air outlet ring 35. The three sets of air outlet rings are evenly distributed along the length of the pipe body, which can collect pressure and material humidity data at different locations inside the pipe from all directions. The data is transmitted to the control panel in real time, and the display screen shows the initial status synchronously. After ensuring that there are no abnormalities, the conveying program is started. The air pump 31 inside the protective cover and the external motor 21 enter the standby state. The vent 13 at the top of the protective cover can balance the internal air pressure and prevent heat accumulation during the operation of the air pump. Upon startup, the spiral conveying mechanism operates first: Motor 21 is a speed-regulating motor adapted to different powder flow rates. When energized, it rotates, and its shaft drives the first helical gear 22 to rotate, which in turn drives the second helical gear 23 to rotate synchronously through gear meshing. The rotating shaft 24 on one side of the second helical gear rotates with the gear. Both ends of the rotating shaft are fixed to the inner wall of the tube 11 by fixing parts. The fixing parts provide stable support for the rotating shaft and prevent it from shaking due to centrifugal force. The connecting rod 25 on the surface of the rotating shaft drives the spiral blade 26 at the other end to rotate along the axis of the tube. The surface of the spiral blade is in close contact with the inner wall of the tube. During the rotation, the spiral blade not only pushes the powder forward along the tube through the spiral structure, but also scrapes off the hygroscopic powder adhering to the inner wall of the tube, preventing the material from gradually sticking to the tube wall. Gradual accumulation leads to blockage. To reduce the risk of blockage at the source of transport, the airflow disturbance mechanism is activated synchronously with the spiral push: the air pump 31 outputs compressed air, which is diverted to the annular air supply pipe 33 through the air supply pipe 32 at the outlet end, and then transported to the air outlet ring 35 through multiple sets of air supply branch pipes 34; the air outlet ring has a right-angled trapezoidal cross section, which reduces the obstruction to the normal flow of powder, and allows the air outlet holes 36 opened along the circumferential direction on the surface to spray airflow in all directions, impacting and breaking up powder agglomerates that are prone to moisture absorption, dispersing large agglomerates into fine particles. At the same time, the airflow can help blow off the trace amounts of powder remaining on the pipe wall, forming a double anti-blockage effect with the wall scraping action of the spiral blades. It is especially suitable for the transport characteristics of fine-particle powders such as talc powder and food additives. During the transport process, the sensor component 3 7. Continuous monitoring and data transmission: If the control panel detects that the pressure inside the pipe exceeds the preset threshold, indicating a possible blockage, or if the material humidity is higher than the safety threshold, indicating that the powder is prone to moisture absorption and agglomeration, the linkage mechanism will be triggered immediately to automatically increase the speed of motor 21 and accelerate the scraping and pushing efficiency of spiral blades 26; at the same time, the air pressure of air pump 31 will be increased to enhance the airflow disturbance intensity of air outlet 36, thus doubly enhancing the anti-blockage and clearing effect. Through real-time monitoring and dynamic adjustment, the powder is always kept in a stable conveying state. After the control panel displays that the pressure and humidity have returned to normal, the equipment will automatically return to the normal operating parameters, which not only ensures the efficient and continuous conveying of easily hygroscopic and fine-particle-size powders, but also avoids the equipment wear and tear and increased labor costs caused by frequent disassembly.

[0032] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A powder conveying anti-blocking device, characterized in that: include The powder conveying pipe includes a pipe body (11), a protective cover (12) is fixedly connected to the top of the pipe body (11), a vent hole (13) is opened on the top of the protective cover (12), and a control panel (14) is fixedly connected to the surface of the protective cover (12). A spiral pushing mechanism, comprising a motor (21), the surface of the motor (21) being fixedly connected to the surface of the tube body (11), a first bevel gear (22) being fixedly connected to one end of the rotating shaft of the motor (21), a second bevel gear (23) meshing with the surface of the first bevel gear (22), a rotating shaft (24) being fixedly connected to one side of the second bevel gear (23), and a protective tube (27) being provided on the surfaces of the first bevel gear (22) and the second bevel gear (23), the end of the protective tube (27) being fixedly connected to the inner wall of the tube body (11); An airflow disturbance mechanism is provided, comprising an air pump (31) installed inside a protective cover (12). The air pump (31) is connected to an air supply pipe (32) at its outlet end. The surface of the air supply pipe (32) is connected to an annular air supply pipe (33) via a pipeline.

2. The powder conveying anti-blocking device according to claim 1, characterized in that: The spiral pushing mechanism also includes a connecting rod (25), one end of which is fixedly connected to the surface of the rotating shaft (24).

3. The powder conveying anti-blocking device according to claim 2, characterized in that: The other end of the connecting rod (25) is fixedly connected to a spiral blade (26), and the surface of the spiral blade (26) overlaps with the inner wall of the tube (11).

4. The powder conveying anti-blocking device according to claim 2, characterized in that: The surfaces at both ends of the rotating shaft (24) are rotatably connected to fixing members, and the ends of the fixing members are fixedly connected to the inner wall of the tube (11).

5. The powder conveying anti-blocking device according to claim 1, characterized in that: The airflow disturbance mechanism also includes an air supply branch pipe (34), one end of which is connected to the interior of the annular air supply pipe (33), and the other end of which is connected to an air outlet ring (35).

6. The powder conveying anti-blocking device according to claim 5, characterized in that: The surface of the air outlet ring (35) is fixedly connected to the inner wall of the tube body (11), and the surface of the air outlet ring (35) is uniformly provided with air outlet holes (36) along the circumferential direction.

7. A powder conveying anti-blocking device according to claim 6, characterized in that: The cross-section of the air outlet ring (35) is a right trapezoid, and a sensor assembly (37) is fixedly connected to the surface of the air outlet ring (35). The sensor assembly (37) includes a pressure sensor and a humidity sensor.

8. A powder conveying anti-blocking device according to claim 7, characterized in that: The pressure sensor and humidity sensor are both electrically connected to the control panel (14), and three sets of the air outlet ring (35) are arranged along the length of the inner wall of the pipe (11).

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