Powder conveying system

Abstract

The utility model relates to a powder conveying system which is applied to the field of powder conveying and comprises a first material suction device used for adsorbing powder in a ton bag, a material storage device used for temporarily storing the powder is arranged at the discharging end of the first material suction device, and the discharging end of the material storage device communicates with a main material suction tank; the main material suction tank is provided with a second material suction device used for conveying powder in the material storage device to the main material suction tank, and a control device used for controlling the conveying amount of the powder is arranged between the material storage device and the main material suction tank. The powder feeding device has the technical effects that the first material suction device is started, powder in a ton bag is conveyed to the material storage device, the second material suction device is started, the powder in the material storage device is conveyed to the main material suction tank, meanwhile, the conveying amount of the powder is adjusted through the control device, metering of the powder is accurately controlled, the matching accuracy of the finished powder is improved, and the production efficiency is improved. And finally, the powder is conveyed to other equipment through the main material suction tank for subsequent production.

Description

Technical Field

[0001] The present application relates to the technical field of powder material conveying, and in particular to a powder material conveying system. Background Art

[0002] The powder conveying system is a combination of conveying powder materials from ton bags of raw materials to other equipment. Other equipment can be packaging machines, mixers and other equipment. The powder conveying system has become an ideal choice for conveying powder materials in modern industrial production processes due to its high efficiency, environmental protection and flexibility.

[0003] In related technologies, the powder conveying system usually uses a Roots blower to absorb the powder in the ton bag, and the powder is transported to the storage silo through a pipeline. Then the Roots blower at the discharge end of the storage silo is started to transport the powder in the storage silo through a pipeline to the main suction tank, and finally transported from the discharge end of the main suction tank to other equipment.

[0004] When the above-mentioned powder conveying system is in use, it is difficult to accurately control the delivery volume of powder in the pipeline during the process of conveying powder from the storage bin to the main suction tank, resulting in large errors in the subsequent powder proportioning and low production efficiency. Summary of the Invention

[0005] In order to help solve the problem that in the process of conveying powder to the main suction tank in the related technology, it is difficult to accurately control the delivery amount of powder in the pipeline, resulting in large errors in the subsequent powder ratio and low production efficiency, the present application provides a powder conveying system, which adopts the following technical solution: it includes a first suction device for adsorbing powder in ton bags, the discharge end of the first suction device is provided with a storage device for buffering powder, the discharge end of the storage device is connected to the main suction tank, the main suction tank is provided with a second suction device for conveying the powder in the storage device to the main suction tank, and a control device for controlling the powder delivery amount is provided between the storage device and the main suction tank.

[0006] In a specific embodiment, the storage device includes a storage bin arranged at the discharge end of the first suction device, the discharge end of the storage bin is provided with a discharge hopper, and the storage bin is connected to the main suction tank through the discharge hopper.

[0007] In a specific embodiment, the feed end of the storage bin is provided with a secondary suction tank, the feed end of the secondary suction tank is communicated with the first adsorption device, and the discharge end of the secondary suction tank is communicated with the feed end of the storage bin through a control component.

[0008] In a specific feasible implementation scheme, the control component includes a rotary control valve arranged at the discharge end of the secondary suction tank, and a high level sensor and a low level sensor are respectively provided in the storage bin; when the powder material in the storage bin is located at a position corresponding to the high level sensor, the rotary control valve controls the discharge end of the secondary suction tank to be closed and stops discharging; when the powder material in the storage bin is located at a position corresponding to the low level sensor, the rotary control valve controls the discharge end of the suction tank to be unobstructed and to discharge the material.

[0009] In a specific embodiment, a pulse dust collector is provided on the storage bin.

[0010] In a specific possible implementation scheme, the control device includes a screw conveyor arranged at the discharge end of the storage bin, the feed end of the screw conveyor is communicated with the discharge end of the storage bin, and the discharge end of the screw conveyor is communicated with the main suction tank.

[0011] In a specific feasible implementation scheme, the discharge end of the screw conveyor is connected to a feeding pipe, and the discharge end of the feeding pipe is connected to the main suction tank. The feeding pipe is respectively connected to a first control pipe and a second control pipe, and the ends of the first control pipe and the second control pipe facing away from the feeding pipe are both connected to the air. The first control pipe is provided with a first manual butterfly valve for controlling the opening and closing of the first control pipe, and the second control pipe is respectively provided with a second manual butterfly valve for controlling the opening and closing of the second control pipe and a pneumatic butterfly valve for controlling the powder conveying amount in the feeding pipe.

[0012] In a specific embodiment, both the first control tube and the second control tube are provided with air filters at one end facing away from the feeding tube.

[0013] In a specific possible implementation scheme, a feeding port is provided on the storage bin, and a cover plate matching the feeding port is hinged on the storage bin, and the cover plate covers the feeding port.

[0014] In a specific possible implementation scheme, a lifting platform is provided on the side of the storage bin facing the feeding port.

[0015] To sum up, the present application has at least the following beneficial technical effects: starting the first suction device to transport the powder in the ton bag to the storage device, starting the second suction device to transport the powder in the storage device to the main suction tank, and at the same time adjusting the powder delivery amount through the control device to achieve precise control of the powder metering, thereby improving the accuracy of the finished powder ratio, and finally the powder is transported from the main suction tank to other equipment for subsequent production. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0017] Figure 2 yes Figure 1 Enlarged schematic diagram of point A in the middle.

[0018] Figure numerals: 1. First suction device; 2. Storage device; 3. Main suction tank; 4. Second suction device; 5. Storage bin; 6. Discharge hopper; 7. Secondary suction tank; 8. Rotary control valve; 9. High material level sensor; 10. Low material level sensor; 11. Pulse dust collector; 12. Screw conveyor; 13. Feed pipe; 14. First control pipe; 15. Second control pipe; 16. First manual butterfly valve; 17. Second manual butterfly valve; 18. Pneumatic butterfly valve; 19. Air filter; 20. Cover; 21. Lifting platform; 22. Packaging machine; 23. Mixer; 24. Ton bag; 25. First negative pressure Roots blower; 26. Second negative pressure Roots blower. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1-2 This application is described in further detail.

[0020] The embodiment of the present application discloses a powder conveying system.

[0021] Reference Figure 1 The powder conveying system includes a first suction device 1 for adsorbing the powder in the ton bag 24, a storage device 2 for buffering the powder is provided at the discharge end of the first suction device 1, and the discharge end of the storage device 2 is connected to the main suction tank 3, and the main suction tank 3 is provided with a second suction device 4 for conveying the powder in the storage device 2 to the main suction tank 3, and a control device for controlling the powder conveying amount is provided between the storage device 2 and the main suction tank 3. In the embodiment of the present application, the first suction device 1 can adopt a first negative pressure Roots blower 25, and the first negative pressure Roots blower 25 and the ton bag 24 are both connected to the storage device 2 through a pipeline, and the second suction device 4 can adopt a second negative pressure Roots blower 26, and the second negative pressure Roots blower 26 is connected to the main suction tank 3 through a pipeline.

[0022] Therefore, the first negative pressure Roots blower 25 is started to transport the powder in the ton bag 24 to the storage device 2, and the second negative pressure Roots blower 26 is started to transport the powder in the storage device 2 to the main suction tank 3. At the same time, the delivery amount of the powder is adjusted by the control device to achieve precise control of the powder metering, thereby improving the accuracy of the finished powder ratio. Finally, the powder is transported from the main suction tank 3 to other equipment for subsequent production.

[0023] Reference Figure 1The storage device 2 includes a storage bin 5 arranged at the discharge end of the first suction device 1. The discharge end of the storage bin 5 is equipped with a discharge hopper 6. The storage bin 5 is connected to the main suction tank 3 through the discharge hopper 6. The design of the discharge hopper 6 facilitates the rapid gathering of powder in the storage bin 5, provides guidance for the transportation of powder in the storage bin 5, and improves the efficiency of powder transportation. A pulse dust collector 11 is installed on the top of the storage bin 5. The pulse dust collector 11 can collect and process dust generated in industrial production, and uses compressed air for pulse spraying and cleaning. The dust in the dust-laden gas is trapped on the outer surface of the filter bag, and the clean gas passes through the filter bag into the clean air chamber and is finally discharged into the atmosphere. The pulse dust collector 11 effectively reduces the harm of dust to the environment and human body, and achieves environmental protection standards.

[0024] Reference Figure 1 The storage bin 5 is provided with a feeding port, and a cover plate 20 of a size matching the feeding port is hingedly connected to the storage bin 5. The cover plate 20 covers the feeding port, and a lifting platform 21 is provided on the side of the storage bin 5 facing the feeding port. Therefore, when replenishing materials, the ton bag 24 can be placed on the lifting platform 21. The lifting platform 21 is raised to a position corresponding to the height of the feeding port. The operator can use the feeding port to feed the materials. The combination of manual feeding and automatic feeding increases flexibility and improves feeding efficiency.

[0025] Reference Figure 1 The feed end of the storage bin 5 is provided with a secondary suction tank 7, which is located at the top of the storage bin 5. The feed end of the secondary suction tank 7 is communicated with the first adsorption device, and the discharge end of the secondary suction tank 7 is communicated with the feed end of the storage bin 5 through a control component. The control component includes a rotary control valve 8 arranged at the discharge end of the secondary suction tank 7, and a high material level sensor 9 and a low material level sensor 10 are respectively provided in the storage bin 5. In the embodiment of the present application, the high material level sensor 9 is located between the discharge end of the secondary suction tank 7 and the low material level sensor 10, and the rotary control valve 8, the high material level sensor 9 and the low material level sensor 10 are all connected to the control system.

[0026] Therefore, when the powder material in the storage bin 5 is located at a position corresponding to the high-level sensor, the rotary control valve 8 controls the discharge end of the secondary suction tank 7 to be in a closed state and stops discharging; when the powder material in the storage bin 5 is located at a position corresponding to the low-level sensor, the rotary control valve 8 controls the discharge end of the suction tank to be in an unobstructed state and discharges the material. Through the coordinated use of the rotary control valve 8, the high-level sensor 9 and the low-level sensor 10, the amount of powder material cached in the storage bin 5 is controlled, which facilitates the continuous loading of the powder material and improves the efficiency of the powder material loading.

[0027] Reference Figure 1 and Figure 2The control device includes a screw conveyor 12 provided at the discharge end of the storage bin 5. The feed end of the screw conveyor 12 is in communication with the discharge end of the storage bin 5, and the discharge end of the screw conveyor 12 is in communication with the main suction tank 3. In the embodiment of the present application, the screw conveyor 12 is specifically a speed-adjustable horizontal push screw conveyor 12. Therefore, when the screw conveyor 12 is started, the screw in the screw conveyor 12 rotates during the conveying process, exerting a force on the powder material, reducing the possibility of powder material agglomeration. The speed of the powder material conveying can be controlled by the screw conveyor 12, which facilitates the measurement of the powder material conveying amount and improves the accuracy of the finished powder material ratio.

[0028] Reference Figure 1 and Figure 2 The discharge end of the screw conveyor 12 is connected to a feeding pipe 13, and the discharge end of the feeding pipe 13 is communicated with the main suction tank 3. The feeding pipe 13 is respectively connected to a first control pipe 14 and a second control pipe 15 arranged in parallel. The first control pipe 14 and the second control pipe 15 are both provided with an air filter element 19 at one end away from the feeding pipe 13. The air filter element 19 can filter dust and impurities, reduce external impurities from entering the feeding pipe 13, and reduce the possibility of powder overflow in the feeding pipe 13.

[0029] Reference Figure 1 and Figure 2 The first control pipe 14 and the second control pipe 15 are both connected to the air at one end away from the feeding pipe 13. The first control pipe 14 is provided with a first manual butterfly valve 16 for controlling the opening and closing of the first control pipe 14. The second control pipe 15 is provided with a second manual butterfly valve 17 for controlling the opening and closing of the second control pipe 15 and a pneumatic butterfly valve 18 for controlling the powder conveying amount in the feeding pipe 13.

[0030] When the first manual butterfly valve 16 or the second manual butterfly valve 17 makes the first control pipe 14 in a sealed state and the second manual butterfly valve 17 makes the second control pipe 15 in a sealed state, the powder cannot be transported in the feeding pipe 13 at this time; when the first manual butterfly valve 16 or the second manual butterfly valve 17 is opened, the raw material in the feeding pipe 13 occupies two-thirds of the feeding pipe 13 and the air occupies one-third of the feeding pipe 13, the feeding pipe 13 realizes the transportation of the powder. By controlling the opening and closing degree of the pneumatic butterfly valve 18 by the control system, the transportation amount of the powder in the feeding pipe 13 is accurately adjusted, the metering of the powder is accurately controlled, and the accuracy of the finished powder ratio is improved; when the first manual butterfly valve 16 makes the first control pipe 14 in an unobstructed state and the second manual butterfly valve 17 makes the second control pipe 15 in an unobstructed state, the pressure in the feeding pipe 13 is consistent with the pressure of the external air, thereby pausing the transportation of the powder in the feeding pipe 13.

[0031] The implementation principle of the embodiment of the present application is as follows: start the first negative pressure Roots blower 25 to transport the powder in the ton bag 24 to the secondary suction tank 7; when the powder in the storage bin 5 is at a position corresponding to the high-level sensor, the rotary control valve 8 controls the discharge end of the secondary suction tank 7 to be in a closed state and stops discharging; when the powder in the storage bin 5 is at a position corresponding to the low-level sensor, the rotary control valve 8 controls the discharge end of the suction tank to be in a free state and discharges the powder, and the powder falls into the storage bin 5 after passing through the secondary suction tank 7; start The screw conveyor 12 conveys the powder at the discharge end of the storage bin 5 to the feeding pipe 13; the second negative pressure Roots blower 26 is started, and the first manual butterfly valve 16 or the second manual butterfly valve 17 is opened, so that the raw material in the feeding pipe 13 occupies two-thirds of the feeding pipe 13, and the air occupies one-third of the feeding pipe 13. At this time, the feeding pipe 13 realizes the transportation of the powder, and transports the powder in the feeding pipe 13 to the main suction tank 3. The powder is then transported to the packaging machine 22 or the mixer 23 through the discharge end of the main suction tank 3 for subsequent production.

[0032] The powder conveying system in the embodiment of the present application adopts closed pipeline transportation, which can effectively reduce the possibility of dust leakage and harm to the production environment and employee health, and meets the production requirements of dust removal and environmental protection. At the same time, the powder delivery amount is adjusted by the control device, and the powder metering is accurately controlled, thereby improving the accuracy of the finished powder ratio. Finally, the powder is transported by the main suction tank 3 to other equipment for subsequent production.

[0033] This specific embodiment is merely an explanation of the present invention and is not intended to limit the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. However, as long as such modifications are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A powder conveying system, characterized in that: The invention comprises a first suction device (1) for absorbing powder in a ton bag (24); a storage device (2) for buffering powder is provided at the discharge end of the first suction device (1); the discharge end of the storage device (2) is connected to a main suction tank (3); a second suction device (4) for conveying the powder in the storage device (2) to the main suction tank (3) is provided on the main suction tank (3); and a control device for controlling the powder conveying amount is provided between the storage device (2) and the main suction tank (3).

2. The powder conveying system according to claim 1, characterized in that: The storage device (2) comprises a storage bin (5) arranged at the discharge end of the first suction device (1), the discharge end of the storage bin (5) is provided with a discharge hopper (6), and the storage bin (5) is communicated with the main suction tank (3) through the discharge hopper (6).

3. The powder conveying system according to claim 2, characterized in that: The feed end of the storage bin (5) is provided with a secondary suction tank (7), the feed end of the secondary suction tank (7) is communicated with the first adsorption device, and the discharge end of the secondary suction tank (7) is communicated with the feed end of the storage bin (5) through a control component.

4. The powder conveying system according to claim 3, characterized in that: The control assembly comprises a rotary control valve (8) arranged at the discharge end of the secondary suction tank (7), and a high level sensor (9) and a low level sensor (10) are respectively provided in the storage bin (5); when the powder material in the storage bin (5) is located at a position corresponding to the high level sensor, the rotary control valve (8) controls the discharge end of the secondary suction tank (7) to be closed and to stop discharging the material; when the powder material in the storage bin (5) is located at a position corresponding to the low level sensor, the rotary control valve (8) controls the discharge end of the suction tank to be unblocked and to discharge the material.

5. The powder conveying system according to claim 2, characterized in that: The storage bin (5) is provided with a pulse dust collector (11).

6. The powder conveying system according to claim 2, characterized in that: The control device comprises a screw conveyor (12) arranged at the discharge end of the storage bin (5), the feed end of the screw conveyor (12) being in communication with the discharge end of the storage bin (5), and the discharge end of the screw conveyor (12) being in communication with the main suction tank (3).

7. The powder conveying system according to claim 6, characterized in that: The discharge end of the screw conveyor (12) is connected to a feeding pipe (13), and the discharge end of the feeding pipe (13) is connected to the main suction tank (3). The feeding pipe (13) is respectively connected to a first control pipe (14) and a second control pipe (15). The ends of the first control pipe (14) and the second control pipe (15) facing away from the feeding pipe (13) are both connected to the air. The first control pipe (14) is provided with a first manual butterfly valve (16) for controlling the opening and closing of the first control pipe (14), and the second control pipe (15) is respectively provided with a second manual butterfly valve (17) for controlling the opening and closing of the second control pipe (15) and a pneumatic butterfly valve (18) for controlling the powder conveying amount in the feeding pipe (13).

8. The powder conveying system according to claim 7, characterized in that: An air filter element (19) is provided at one end of the first control tube (14) and the second control tube (15) facing away from the feeding tube (13).

9. The powder conveying system according to claim 2, characterized in that: A feeding port is provided on the storage bin (5), and a cover plate (20) matching the feeding port is hingedly connected to the storage bin (5), and the cover plate (20) covers the feeding port.

10. The powder conveying system according to claim 9, characterized in that: A lifting platform (21) is provided on the side of the storage bin (5) facing the feeding port.

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