Pneumatic conveying discharger with exhaust port

Abstract

The pneumatic conveying discharger comprises a shell and a rotating shaft movably arranged in the middle of the shell in a penetrating mode, impellers are arranged on the periphery of the rotating shaft in a surrounding mode, a feeding port is formed in the upper end of the shell, the end, away from the feeding port, of the shell is arranged at a discharging port, and a material groove for rotationally conveying materials is formed between the impellers. A plurality of fixing plates are arranged on the periphery of the shell and provided with exhaust pipes, the exhaust pipes are obliquely arranged on the fixing plates, exhaust channels are formed in the centers of the exhaust pipes and communicated with the material groove, and materials can be smoothly discharged through the fixing plates arranged on the periphery of the shell and the exhaust pipes arranged on the fixing plates. Air blockage and reverse flow are prevented, and one-way flowing of materials and stable discharging are guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of star-shaped unloaders, specifically to a pneumatic conveying unloader with an exhaust port. Background Technology

[0002] Pneumatic conveying unloaders are key equipment in material conveying systems, used to accurately and efficiently unload materials transported pneumatically from closed pipelines or conveyor lines to designated locations. They typically consist of an unloading valve and a control system. In operation, when the airflow carrying material reaches the unloader, the internal air pressure changes, causing the unloading valve to open. The material is discharged under the force of gravity and the thrust of the remaining airflow, while the airflow exits the system through the exhaust port. They feature good sealing performance, fast unloading speed, and precise control of material flow rate and direction. They can adapt to the conveying and unloading needs of various powdery and granular materials, playing a vital role in pneumatic conveying processes in numerous industries such as chemical, building materials, and food, effectively ensuring the continuity and stability of the production process.

[0003] CN220617545U discloses a negative pressure pneumatic conveying star-shaped unloader, including a housing. A sealing ring is provided on the side wall of the housing, and a sealing bearing is fixedly connected to the inner wall of the sealing ring. A rotating plate is fixedly connected to the inner wall of the sealing bearing, and a limit ring is fixedly installed on the side wall of the rotating plate. This invention, through the design of an arc-shaped rod, scraper, connecting plate, and handle, facilitates the scraping of material residue on the side walls of the blades, preventing material residue from causing blockages and increasing the weight of the blades, thus increasing the load on the motor and potentially causing further problems. This can cause the motor to overheat and trip, affecting the continuity of material conveying. The design of sealing rings, through slots, limit slots, rotating columns, and limit rods facilitates the removal of the impeller and blades from the star-shaped unloader, avoiding the need to disassemble the entire unloader for repair when the blades and impeller are damaged. However, this technology does not have a corresponding exhaust port. The material is conveyed under the action of airflow with a certain pressure. When the material reaches the unloader, there is a certain air pressure inside. If the airflow is not discharged in time, the material may not be able to be discharged smoothly or may cause blockage due to excessive pressure difference between the inside and outside. Therefore, this technology still has room for improvement. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a pneumatic conveying and unloading device with an exhaust port, which addresses the shortcomings of the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pneumatic conveying and unloading device with an exhaust port, comprising a housing and a rotating shaft movably passing through the middle of the housing, with impellers arranged around the outer periphery of the rotating shaft. The device is characterized in that: an inlet is provided at the upper end of the housing, and an outlet is located at the end of the housing furthest from the inlet; a material trough for rotating and transporting materials is formed between the impellers; several fixed plates are provided around the outer periphery of the housing; each fixed plate is provided with an exhaust pipe; the exhaust pipe is obliquely positioned above the fixed plate; an exhaust channel is provided at the center of the exhaust pipe; and the exhaust channel communicates with the material trough.

[0006] By adopting the above technical solution, through the fixed plate and the exhaust pipe set on the fixed plate on the outer periphery of the shell, when the material is rotated and transported, since the exhaust channel is connected to the material trough, when the rotating shaft drives the impeller to rotate, the airflow is rotated up and discharged through the exhaust channel. The oblique setting of the exhaust pipe facilitates the discharge of airflow from bottom to top, avoids the accumulation of internal air and the resulting air pressure imbalance, so that the material can be discharged smoothly, prevents air blockage and backflow, and ensures unidirectional flow of material and stable unloading.

[0007] The aforementioned pneumatic conveying unloader with exhaust port can be further configured as follows: the fixed plate is provided with flanges on both sides of the housing, the fixed plate is fixedly connected to the housing through the flanges, the rotating shaft passes through the flanges, and the flange is provided with a driving structure for driving the rotating shaft on the side away from the fixed plate.

[0008] Using the above technical solution, the fixing plate is firmly connected to the housing through the flanges on both sides, and the rotating shaft passes through it to ensure the stability of the rotating shaft and reduce vibration and deviation. The drive structure provides a stable power source for the rotating shaft, ensuring the stable unloading of the unloader.

[0009] The aforementioned pneumatic conveying unloader with exhaust port can be further configured as follows: the driving structure includes an axial mounting plate disposed between flanges, an L-shaped mounting bracket is provided at the end of the axial mounting plate, the vertical surface of the L-shaped mounting bracket is fixedly connected to the axial mounting plate, an inclined reinforcing plate is provided at the bottom of the horizontal surface of the L-shaped mounting bracket, and a motor mounting bracket for mounting a reduction motor is provided at the upper end of the L-shaped mounting bracket, the reduction motor being synchronously connected to the rotating shaft.

[0010] Using the above technical solution, the L-shaped mounting bracket is fixedly connected to the axial mounting plate through the vertical surface, and the inclined reinforcing plate at the bottom of the horizontal surface enhances the stability of the overall structure, so that the drive structure can be more stably supported between the flanges. The geared motor is installed in the motor mounting bracket at the upper end of the L-shaped mounting bracket and is synchronously connected to the rotating shaft to provide stable power to the rotating shaft.

[0011] The aforementioned pneumatic conveying and unloading device with an exhaust port can be further configured such that: the rotating shaft is provided with a first synchronous end, the reduction motor is provided with a second synchronous end, and the first synchronous end and the second synchronous end are connected by a synchronous belt to enable the reduction motor to drive the rotating shaft to rotate.

[0012] By adopting the above technical solution, synchronous belt drive can ensure that the rotating shaft and the geared motor achieve precise synchronous rotation, enabling power transmission. At the same time, the synchronous belt connection has good flexibility and buffering effect, which can reduce vibration and noise during equipment operation and protect the equipment from excessive impact.

[0013] The aforementioned pneumatic conveying unloader with exhaust port can be further configured such that: the motor mounting bracket includes a motor base and a fixed seat disposed on the motor base; the fixed seat is provided with a plurality of obliquely arranged fixed feet; and a vertical fixed foot is provided between the fixed feet; the oblique fixed feet and the vertical fixed feet form a triangular fixing.

[0014] By adopting the above technical solution, the inclined fixed foot and the vertical fixed foot form a triangular fixing structure, which makes the geared motor more stable during operation, reduces vibration and displacement, ensures stable power transmission, and improves the efficiency and accuracy of material unloading.

[0015] The beneficial effects of this utility model are: by setting a fixing plate on the outer periphery of the shell and setting an exhaust pipe on the fixing plate, the material can be discharged smoothly, preventing air blockage and backflow, and ensuring unidirectional flow of material and stable unloading. Attached Figure Description

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

[0017] Figure 2 This is a side view of the structure of this utility model;

[0018] Figure 3 This is a structural diagram of the motor mounting bracket of this utility model;

[0019] Label annotations: 1-Shell, 2-Shaft, 3-Impeller, 4-Inlet, 5-Outlet, 6-Material trough, 7-Fixed plate, 8-Exhaust pipe, 9-Exhaust channel, 10-Flange, 11-Axial mounting plate, 12-L-shaped mounting bracket, 13-Angled reinforcing plate, 14-Gear motor, 15-Motor mounting bracket, 16-First synchronous end, 17-Second synchronous end, 18-Synchronous belt, 19-Motor base, 20-Fixed seat, 21-Angled fixed foot, 22-Vertical fixed foot. Detailed Implementation

[0020] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0021] like Figure 1-3 The present invention provides the following technical solution: a pneumatic conveying and unloading device with an exhaust port, comprising a housing 1 and a rotating shaft 2 movably passing through the middle of the housing 1. Impellers 3 are arranged around the outer periphery of the rotating shaft 2. An inlet 4 is opened at the upper end of the housing 1, and an outlet 5 is located at the end of the housing 1 away from the inlet 4. A material trough 6 for rotating and transporting materials is formed between the impellers 3. Several fixing plates 7 are provided around the outer periphery of the housing 1. An exhaust pipe 8 is provided on each fixing plate 7. An exhaust channel 9 is opened at the center of the exhaust pipe 8, which is connected to the material trough 6. With the fixed plate 7 and the exhaust pipe 8 installed on the fixed plate 7 on the outer periphery of the shell 1, during the rotation and transportation of materials, since the exhaust channel 9 is connected to the material trough 6, when the rotating shaft 2 drives the impeller 3 to rotate, the airflow is rotated upward and discharged through the exhaust channel 9. The obliquely set exhaust pipe 8 facilitates the discharge of airflow from bottom to top, avoids the accumulation of internal air and the resulting air pressure imbalance, allows the material to be discharged smoothly, prevents air blockage and backflow, and ensures unidirectional flow and stable unloading of materials. The fixed plate 7 is provided with flanges 10 on both sides of the shell 1, and the fixed plate 7 is fixed to the shell 1 through the flanges 10. The shaft 2 is connected to the flange 10. The flange 10 has a drive structure for driving the shaft 2 on the side away from the fixed plate 7. The fixed plate 7 is securely connected to the housing 1 via the flanges 10 on both sides. The shaft 2 passes through the flanges, ensuring its stability and reducing vibration and offset. The drive structure provides a stable power source for the shaft 2, ensuring stable unloading of the unloader. The drive structure includes an axial mounting plate 11 positioned between the flanges 10. An L-shaped mounting bracket 12 is provided at the end of the axial mounting plate 11. The vertical surface of the L-shaped mounting bracket 12 is fixedly connected to the axial mounting plate 11. The mounting bracket 12 has an inclined reinforcing plate 13 at the bottom of the horizontal plane, and a motor mounting bracket 15 for mounting the geared motor 14 at the upper end of the L-shaped mounting bracket 12. The geared motor 14 is synchronously connected to the rotating shaft 2. The L-shaped mounting bracket 12 is fixedly connected to the axial mounting plate 11 through the vertical plane. The inclined reinforcing plate 13 at the bottom of the horizontal plane enhances the stability of the overall structure, so that the drive structure can be more stably supported between the flanges 10. The geared motor 14 is installed in the motor mounting bracket 15 at the upper end of the L-shaped mounting bracket 12 and is synchronously connected to the rotating shaft 2 to provide stable power to the rotating shaft 2.

[0022] like Figure 1-3The present invention provides the following technical solution: a pneumatic conveying unloader with an exhaust port, wherein the rotating shaft 2 is provided with a first synchronous end 16, and the geared motor 14 is provided with a second synchronous end 17. The first synchronous end 16 and the second synchronous end 17 are connected by a synchronous belt 18, which enables the geared motor 14 to drive the rotating shaft 2 to rotate. The synchronous belt 18 transmission ensures that the rotating shaft 2 and the geared motor 14 achieve precise synchronous rotation, enabling power transmission. At the same time, the synchronous belt 18 connection has good flexibility and buffering effect, which can reduce vibration and noise during equipment operation and protect the equipment from excessive impact. The motor mounting bracket 15 includes a motor base 19 and a fixed seat 20 set on the motor base 19. The fixed seat 20 is provided with several obliquely arranged oblique fixed feet 21, and vertical fixed feet 22 are also provided between the fixed feet. The oblique fixed feet 21 and the vertical fixed feet 22 form a triangular fixing. The triangular fixing structure formed by the oblique fixed feet 21 and the vertical fixed feet 22 makes the geared motor 14 more stable during operation, reduces vibration and displacement, ensures stable power transmission, and improves the efficiency and accuracy of material unloading.

[0023] The beneficial effects of this utility model are: by setting a fixing plate 7 on the outer periphery of the shell 1 and setting an exhaust pipe 8 on the fixing plate 7, the material can be discharged smoothly, preventing air blockage and backflow, and ensuring unidirectional flow of material and stable unloading.

Claims

1. A pneumatic conveying and unloading device with an exhaust port, comprising a housing and a rotating shaft movably passing through the middle of the housing, wherein an impeller is arranged around the outer periphery of the rotating shaft, characterized in that: The shell upper end is provided with an inlet, and the shell end away from the inlet is provided with an outlet.

2. A pneumatic conveying and discharger with exhaust according to claim 1, characterized in that: The fixed plate is provided with a flange plate, and the fixed plate is fixedly connected with the shell through the flange plate.

3. A pneumatic conveying and discharger with exhaust according to claim 2, characterized in that: The driving structure comprises an axial mounting plate arranged between the flange plates, and the axial mounting plate is provided with an L-shaped mounting frame at the end portion.

4. A gas-assisted transfer de-lader having a vented outlet according to claim 3, wherein: The shaft is provided with a first synchronous end, the reduction motor is provided with a second synchronous end, and the first synchronous end and the second synchronous end are connected through a synchronous belt to enable the reduction motor to drive the shaft to rotate.

5. A gas-assisted transfer dump bin according to claim 3, wherein: The motor mounting frame comprises a motor base and a fixing seat arranged on the motor base, the fixing seat is provided with a plurality of obliquely arranged inclined fixing feet, and the inclined fixing feet are further provided with a vertical fixing foot.

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