Long-distance stable pneumatic conveying device

Abstract

The utility model relates to the technical field of gas conveying devices, in particular to a long-distance stable pneumatic conveying device. According to the technical scheme, the device comprises a bin body and a feeding pipe arranged at the top end of the bin body, and further comprises a spiral conveying mechanism arranged at the bottom end of the bin body, one end of the spiral conveying mechanism is connected with an adapter pipe, the discharging end of the adapter pipe is connected with a conveying pipe, and one end of the conveying pipe is provided with an air conveying device; and the pressure stabilizing scattering mechanism is arranged at the bottom end of the bin body, and the pressure stabilizing scattering mechanism is used for balancing air pressure and dredging materials. The pressure stabilizing scattering mechanism is arranged at the bottom end of the bin body, a first pulse electromagnetic valve is started to enable an air sweeping pulse scattering piece to move up and down rapidly, materials at the output end of the bin body are scattered, meanwhile, the bin body is punched, the pressure in the bin body is close to the pressure of a conveying pipe, and abrasion of a spiral conveying mechanism is reduced; and the pneumatic conveying device is arranged at one end of the conveying pipe, so that the materials can be stably conveyed for a long distance under the cooperation of the stable-pressure scattering mechanism.

Description

Technical Field

[0001] This application relates to the field of gas conveying devices, and in particular to a long-distance stable pneumatic conveying device. Background Technology

[0002] A silo pump is a device that uses compressed air as a power source to transport powdered or granular materials through jet and flow technology. It is widely used in chemical, metallurgical, and other fields.

[0003] Traditional pneumatic conveying pumps rely on gravity feeding, rapidly transporting materials after they enter the pipeline. However, this method is not effective in certain specialized applications. It is difficult to control the material conveying speed, and material jamming is common during transport. Furthermore, unstable air pressure can occur after a period of operation, leading to significant wear and tear on the equipment. Therefore, this application proposes a long-distance, stable pneumatic conveying device. Utility Model Content

[0004] The purpose of this application is to address the technical problems identified in the background section by proposing a long-distance stable pneumatic conveying device.

[0005] The technical solution of this application: A long-distance stable pneumatic conveying device, comprising a hopper and a feed pipe disposed at its top, and further comprising:

[0006] A screw conveyor mechanism is installed at the bottom of the silo body. One end of the screw conveyor mechanism is connected to a transfer pipe. The discharge end of the transfer pipe is connected to a conveying pipe. One end of the conveying pipe is equipped with an air conveying device.

[0007] The pressure stabilizing and dispersing mechanism installed at the bottom of the silo body balances the air pressure and clears the material.

[0008] Preferably, the screw conveyor mechanism includes a conveying cylinder connected to the output port of the silo body, a rotating shaft rotatably connected inside the conveying cylinder, and helical blades connected to the side wall of the rotating shaft;

[0009] A speed reducer is installed at one end of the conveying cylinder, the output end of the speed reducer is fixedly connected to the rotating shaft, a motor is installed at one end of the speed reducer, and a front-end blower and a rear-end blower are respectively installed at both ends of the conveying cylinder.

[0010] Preferably, the pressure stabilizing and dispersing mechanism includes an L-shaped air pipe inserted into the bottom side wall of the chamber, the input end of the L-shaped air pipe is connected to a flexible hose, and the input end of the flexible hose is connected to an air inlet pipe;

[0011] The flexible tube is equipped with a first pulse solenoid valve, and the L-shaped air tube is equipped with a first check valve.

[0012] Preferably, the output end of the L-shaped trachea is provided with an air sweeping pulse dispersing component;

[0013] The air sweep pulse dispersing component includes a limiting plate fixedly connected to the output end of the L-shaped air tube. A sliding air tube extending into the L-shaped air tube is slidably connected through the limiting plate. A sliding plate is fixedly connected to the inner side wall of the sliding air tube. The sliding plate slides inside the L-shaped air tube. A spring is sleeved on the side wall of the sliding air tube between the sliding plate and the limiting plate.

[0014] A punch is fixedly connected to the output end of the sliding air tube, and the punch is located on the outside of the L-shaped air tube.

[0015] Preferably, a discharge expansion joint is provided between the transfer pipe and the conveying pipe, and a transmitter is provided on the conveying pipe;

[0016] Pressure transmitters are installed on both the silo body and the conveying pipe.

[0017] Preferably, the air delivery device includes an air compressor, a connecting air pipe is connected to one side of the air compressor, a main control valve is provided on the connecting air pipe, a transfer air pipe is connected to the output end of the connecting air pipe, and a make-up air pipe and a main air pipe are connected to the side wall of the transfer air pipe.

[0018] The output end of the main air pipe is connected to the end of the feed pipe, and the supplementary air pipe is connected to the side wall of the feed pipe.

[0019] Preferably, the main air pipe is provided with a second check valve, a pneumatic valve and a manual regulating valve in sequence;

[0020] The air supply pipe is sequentially equipped with a manual regulating valve, a second pulse solenoid valve, and a third check valve.

[0021] Preferably, the side wall of the hopper is connected to a pair of lugs, and a weighing instrument is provided at the bottom of each of the two lugs. It also includes a pair of brackets, and the two weighing instruments are respectively installed on the upper ends of the two brackets.

[0022] Compared with the prior art, this application has the following beneficial technical effects:

[0023] This application sets a pressure-stabilizing and dispersing mechanism at the bottom of the silo body. The first pulse solenoid valve is opened to make the air-sweeping pulse dispersing component move up and down rapidly, dispersing the material at the output end of the silo body to avoid material blockage. At the same time, it presses into the silo body to make the pressure inside the silo body similar to the pressure in the conveying pipe, reducing the wear of the screw conveyor mechanism. Furthermore, the discharge speed can be controlled by adjusting the rotation speed of the screw blades.

[0024] By installing an air conveying device at one end of the conveying pipe, and with the cooperation of the pressure stabilizing and dispersing mechanism, the material can be conveyed stably over long distances. Attached Figure Description

[0025] Figure 1 This is a three-dimensional diagram of a long-distance stable pneumatic conveying device;

[0026] Figure 2 yes Figure 1 Another structural diagram from another perspective;

[0027] Figure 3 yes Figure 2 Enlarged structural diagram at point A in the middle.

[0028] Attached reference numerals: 1. Feed pipe; 2. Feed valve; 3. Chamber body; 4. Lug; 5. Weighing instrument;

[0029] 6. Pressure stabilizing and dispersing mechanism; 61. Air inlet pipe; 62. First pulse solenoid valve; 63. Hose; 64. First check valve; 65. L-shaped air pipe; 66. Air sweeping pulse dispersing component; 661. Sliding vane; 662. Sliding air pipe; 663. Spring; 664. Limiting plate; 665. Punch;

[0030] 7. Reducer; 8. Motor; 9. Front-end blower; 10. Rear-end blower; 11. Conveyor cylinder; 12. Shaft; 13. Spiral blades; 14. Conveying pipe; 15. Exhaust pipe;

[0031] 16. Air delivery device; 161. Main air pipe; 162. Manual regulating valve; 163. Pneumatic valve; 164. Second check valve; 165. Transfer air pipe; 166. Connecting air pipe; 167. Main control valve; 168. Air supply pipe; 169. Manual regulating valve; 1610. Second pulse solenoid valve; 1611. Third check valve; 1612. Air compressor;

[0032] 17. Bracket; 18. Exhaust valve; 19. Adaptor pipe. Detailed Implementation

[0033] The technical solution of this application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] The components of the embodiments of this application described and shown in the accompanying drawings can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of this application provided in the drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application.

[0035] Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0036] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0038] Example

[0039] like Figures 1-3 As shown, this application discloses a long-distance stable pneumatic conveying device, comprising a silo body 3 and a feed pipe 1 disposed at its top. The feed pipe 1 is equipped with a discharge expansion joint and a feed valve 2. A pair of lugs 4 are connected to the side wall of the silo body 3, and a weighing instrument 5 is disposed at the bottom end of each lug 4. The device also includes a pair of supports 17, with the two weighing instruments 5 respectively mounted on the upper ends of the two supports 17. An exhaust pipe 15 is also connected to the upper end of the silo body 3, and an exhaust valve 18 is disposed on the exhaust pipe 15.

[0040] It also includes a screw conveyor mechanism located at the bottom of the silo body 3. One end of the screw conveyor mechanism is connected to a transfer pipe 19, and the discharge end of the transfer pipe 19 is connected to a conveying pipe 14. A discharge expansion joint is provided between the transfer pipe 19 and the conveying pipe 14. A transmitter is provided on the conveying pipe 14. One end of the conveying pipe 14 is provided with an air conveying device 16, which completes the long-distance conveying of materials in the conveying pipe 14.

[0041] The pressure-stabilizing and dispersing mechanism 6, located at the bottom of the silo body 3, balances the air pressure inside the silo body 3 and clears the material, thereby reducing wear on the screw conveyor mechanism.

[0042] Specifically, the screw conveyor mechanism includes a conveying cylinder 11 connected to the output port of the silo 3. A rotating shaft 12 is rotatably connected inside the conveying cylinder 11, and a screw blade 13 is connected to the side wall of the rotating shaft 12. A reducer 7 is installed at one end of the conveying cylinder 11, and the output end of the reducer 7 is fixedly connected to the rotating shaft 12. A motor 8 is installed at one end of the reducer 7. A front-end blower 9 and a rear-end blower 10 are respectively installed at both ends of the conveying cylinder 11 to further assist in conveying the material inside the conveying cylinder 11 and prevent a small amount of material from accumulating on the inner walls of both ends of the conveying cylinder 11.

[0043] Specifically, the pressure stabilizing and dispersing mechanism 6 includes an L-shaped air pipe 65 inserted into the bottom side wall of the chamber 3. The input end of the L-shaped air pipe 65 is connected to a flexible hose 63, and the input end of the flexible hose 63 is connected to an air inlet pipe 61. A first pulse solenoid valve 62 is installed on the flexible hose 63, and a first check valve 64 is installed on the L-shaped air pipe 65. This allows for intermittent gas input into the chamber 3.

[0044] Furthermore, the output end of the L-shaped trachea 65 is provided with an air-sweeping pulse dispersing component 66; the air-sweeping pulse dispersing component 66 includes a limiting plate 664 fixedly connected to the output end of the L-shaped trachea 65, a sliding trachea 662 extending into the L-shaped trachea 65 is slidably connected through the limiting plate 664, and a sliding plate 661 is fixedly connected to the inner side wall of the sliding trachea 662. The sliding plate 661 slides inside the L-shaped trachea 65, and can slide up and down under the action of air pressure inside the L-shaped trachea 65. A spring 663 is sleeved on the side wall of the sliding trachea 662, located between the sliding plate 661 and the limiting plate 664; the spring 663 allows the sliding plate 661 to slide upward when no pressure is applied. A punch 665 is fixedly connected to the output end of the sliding trachea 662, and the punch 665 is located on the outside of the L-shaped trachea 65.

[0045] Pressure transmitters are installed on both the silo body 3 and the conveying pipe 14.

[0046] Specifically, the pneumatic conveying device 16 includes an air compressor 1612. A connecting air pipe 166 is connected to one side of the air compressor 1612. A main control valve 167 is installed on the connecting air pipe 166. An air transfer pipe 165 is connected to the output end of the connecting air pipe 166. A supplementary air pipe 168 and a main air pipe 161 are connected to the side wall of the supplementary air pipe 165. The output end of the main air pipe 161 is connected to the end of the conveying pipe 14, and the supplementary air pipe 168 is connected to the side wall of the conveying pipe 14. A second check valve 164, a pneumatic valve 163, and a manual regulating valve 162 are sequentially installed on the main air pipe 161. A manual regulating valve 169, a second pulse solenoid valve 1610, and a third check valve 1611 are sequentially installed on the supplementary air pipe 168. The pneumatic conveying device 16 enables long-distance material conveying.

[0047] The working principle of this embodiment is as follows: The feed valve 2 is opened to add sufficient material into the hopper 3, and then the feed valve 2 is closed. The airflow is activated to blow through the conveying pipe 14. Specifically, air is supplied to the connecting air pipe 166 via the air compressor 1612. The gas in the connecting air pipe 166 is then supplied to the transfer air pipe 165. The gas in the transfer air pipe 165 is then supplied to the conveying pipe 14 via the main air pipe 161. A portion of the gas in the transfer air pipe 165 is also supplied to the conveying pipe 14 via the supplementary air pipe 168. The supplementary air pipe 168 is equipped with a second pulse solenoid valve 1610, which intermittently blows air pressure into the conveying pipe 14 to disperse the material and prevent clumping. Then, the motor 8 is activated, and the reducer 7 drives the rotating shaft 12 to rotate, which in turn drives the spiral blades 13 to rotate within the conveying cylinder 11, thus conveying the falling material into the conveying pipe 14. When the material enters the conveying pipe 14, the pressure inside the conveying pipe 14 increases. At this time, the pressure difference between the pressure transmitter on the silo body 3 and the pressure transmitter on the conveying pipe 14 is too large. The first pulse solenoid valve 62 is opened, and airflow intermittently enters the silo body 3 through the hose 63 and the L-shaped air pipe 65. When the airflow enters, the sliding vane 661 moves downward under the action of air pressure, which in turn drives the punch 665 to move downward through the sliding air pipe 662 to disperse the material. At the same time, the airflow is discharged downward through the sliding air pipe 662, pressing into the silo body 3, so that the pressure inside the silo body 3 is close to the pressure inside the conveying pipe 14, reducing the wear on the screw conveyor mechanism. When the pressure inside the silo body 3 is close to the pressure inside the conveying pipe 14, the first pulse solenoid valve 62 is closed. At this time, the wear on the screw conveyor mechanism is small, and the screw conveyor mechanism continues to work. Each rotation will carry away a part of the material and compressed air. When the pressure inside the silo body 3 decreases, the first pulse solenoid valve 62 is opened again. After the conveying is completed, the exhaust valve 18 is opened to discharge the gas inside the silo body 3.

[0048] The above specific embodiments are merely preferred embodiments of this application. Based on the technical solutions of this application and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments. The above specific embodiments are merely explanations of this application and are not limitations on this application.

Claims

1. A long-distance stable pneumatic conveying device, comprising a hopper (3) and a feed pipe (1) disposed at its top, characterized in that, Also includes: A screw conveyor mechanism is set at the bottom of the silo body (3). One end of the screw conveyor mechanism is connected to a transfer pipe (19). The discharge end of the transfer pipe (19) is connected to a conveying pipe (14). One end of the conveying pipe (14) is equipped with an air conveying device (16). The pressure stabilizing and dispersing mechanism (6) is set at the bottom of the silo body (3) to balance the air pressure and clear the material.

2. The long-distance stable pneumatic conveying device according to claim 1, characterized in that, The screw conveyor mechanism includes a conveying cylinder (11) connected to the output port of the silo (3), a rotating shaft (12) is rotatably connected inside the conveying cylinder (11), and a screw blade (13) is connected to the side wall of the rotating shaft (12). A speed reducer (7) is installed at one end of the conveying cylinder (11), the output end of the speed reducer (7) is fixedly connected to the rotating shaft (12), and a motor (8) is installed at one end of the speed reducer (7).

3. A long-distance stable pneumatic conveying device according to claim 1 or 2, characterized in that, The pressure stabilizing and dispersing mechanism (6) includes an L-shaped air pipe (65) inserted into the bottom side wall of the chamber (3), the input end of the L-shaped air pipe (65) is connected to a hose (63), and the input end of the hose (63) is connected to an air inlet pipe (61). The hose (63) is equipped with a first pulse solenoid valve (62), and the L-shaped air pipe (65) is equipped with a first check valve (64).

4. The long-distance stable pneumatic conveying device according to claim 3, characterized in that, The output end of the L-shaped trachea (65) is provided with an air sweep pulse dispersing component (66); The pneumatic pulse dispersing component (66) includes a limiting piece (664) fixedly connected to the output end of the L-shaped air tube (65). A sliding air tube (662) extending into the L-shaped air tube (65) is slidably connected through the limiting piece (664). A sliding plate (661) is fixedly connected to the inner side wall of the sliding air tube (662). The sliding plate (661) slides in the L-shaped air tube (65). A spring (663) is sleeved on the side wall of the sliding air tube (662) between the sliding plate (661) and the limiting piece (664). The output end of the sliding air tube (662) is fixedly connected to a punch (665), which is located on the outside of the L-shaped air tube (65).

5. The long-distance stable pneumatic conveying device according to claim 1, characterized in that, A discharge expansion joint is provided between the transfer pipe (19) and the conveying pipe (14), and a transmitter is provided on the conveying pipe (14); Pressure transmitters are installed on both the silo body (3) and the conveying pipe (14).

6. The long-distance stable pneumatic conveying device according to claim 1, characterized in that, The air delivery device (16) includes an air compressor (1612), a connecting air pipe (166) is connected to one side of the air compressor (1612), a main control valve (167) is provided on the connecting air pipe (166), a transfer air pipe (165) is connected to the output end of the connecting air pipe (166), and a supplementary air pipe (168) and a main air pipe (161) are connected to the side wall of the transfer air pipe (165). The output end of the main air pipe (161) is connected to the end of the feed pipe (14), and the supplementary air pipe (168) is connected to the side wall of the feed pipe (14).

7. A long-distance stable pneumatic conveying device according to claim 6, characterized in that, The main air pipe (161) is sequentially equipped with a second check valve (164), a pneumatic valve (163), and a manual regulating valve (162). The air supply pipe (168) is sequentially equipped with a manual regulating valve (169), a second pulse solenoid valve (1610), and a third check valve (1611).

8. A long-distance stable pneumatic conveying device according to claim 1, characterized in that, The side wall of the chamber (3) is connected to a pair of ear seats (4), and a weighing instrument (5) is provided at the bottom of each of the two ear seats (4). It also includes a pair of brackets (17), and the two weighing instruments (5) are respectively installed on the upper ends of the two brackets (17).

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