Combined unblocking device combining mechanical unblocking and gas unblocking

Abstract

A combined unblocking device combining mechanical unblocking and gas unblocking belongs to the field of powder unblocking equipment, the combined unblocking device comprises a mechanical unblocking device and a gas unblocking device, a main shaft of the mechanical unblocking device extends into a polyhedral stock bin, a plane scraper is fixed at the end of the main shaft, and the gas unblocking device is fixed at the end of the main shaft. A plurality of gas unblocking devices are fixed on the bin wall of the polyhedral bin outside the rotation range of the plane scraper, each gas unblocking device comprises a main body and a telescopic nozzle, the main body part of each gas unblocking device is arranged outside the bin wall of the bin, and each telescopic nozzle is fixed at the front end of a push rod and extends into the bin body; according to the polyhedral stock bin angle unblocking device, large-area unblocking can be carried out through the mechanical unblocking machine, angle unblocking is carried out through the gas unblocking device, the purpose of angle unblocking of a polyhedral stock bin is achieved, and normal production can be guaranteed.

Description

Technical Field

[0001] The utility model relates to a combined clearing device, in particular to a combined clearing device combining mechanical clearing with gas clearing, and belongs to the field of powder clearing equipment. Background Art

[0002] Traditional blockage clearing machines are generally inverted frustum structures. Figure 7 It is a schematic diagram of the structure of a silo blockage clearing device with an inverted frustum structure. In the silo blockage clearing device with an inverted frustum structure, a slewing bearing 46 is supported by an intermediate supporting part in the middle of the vertical columns 45. The upper and lower positions of the columns 45 support an upper silo body 41 and a lower silo body 43. The slewing bearing 46 supports an intermediate rotating silo body 42. An outer gear ring is arranged on the outer periphery of the slewing bearing 46. The outer gear ring is driven by a gear 44a on the output shaft of a reduction motor 44, thereby driving the intermediate rotating silo body 42 to rotate. An upper scraper 40 and a lower scraper rotating along the inner wall of the inverted frustum are fixed on the intermediate rotating silo 42. Multiple scrapers fixed on the intermediate rotating silo body 42 clear the inner walls of the upper silo body 41 and the lower silo body 43 connected above and below the intermediate silo during rotation, thereby achieving the purpose of preventing blockage.

[0003] In addition to the inverted frustum structure, some companies also use polyhedral material silos. This polyhedral material silo also has the problem of internal blockage. In order to overcome this blockage phenomenon, 202020142131.4 discloses a blockage clearing machine in which the rotating surface of the scraper is parallel to the wall of the polyhedral material silo. Figure 8 This is a schematic diagram of the structure of a polyhedron silo blockage clearing device. Fig. 9 3 is a schematic diagram of the side structure of a polyhedral silo blockage clearing device, the blockage clearing machine comprises a plane scraper 37 and a scraper driving unit, the scraper driving unit comprises a motor 34, the output shaft of the motor 34 is connected to the input shaft of a reducer 38, the output shaft of the reducer 38 is provided with a driving gear, the driving gear is meshed with a large gear, the large gear is arranged on a main shaft 35, a plane scraper 37 is arranged at the front end of the main shaft 35, the plane scraper 37 is located in the silo and is parallel to the silo wall of the polyhedral silo, 36 is a plane scraper mounting seat, the plane scraper 37 driving unit is fixedly arranged outside the silo and the main shaft is perpendicular to the silo wall, the rotating surface of the plane scraper 37 is parallel to the inner wall of the silo, a bracket 33 and a bracket bottom surface 33a are arranged outside the large gear, the bracket bottom surface 33a is arranged on the deck of the polyhedral silo, 31 is a box bottom plate, 32 is a box, and a blockage clearing machine is respectively fixed on a plurality of silo surfaces.

[0004] However, in the long-term use process, it was found that the middle part could be cleaned, but the key four corners still had the problem of powder sticking and being difficult to clean, especially some refractory powder, which would solidify over time and gradually cause wear and jam on the end of the scraper. Although a variety of mechanical clearing methods were tried at the corners, and vibrators were set externally for vibration clearing, the effect was not obvious. How to overcome this phenomenon became a problem for clearing equipment manufacturers. Summary of the invention

[0005] In view of the fact that the angles of polyhedral silos are prone to blockage and even solidification, the utility model provides a combined clearing device that combines mechanical clearing with gas clearing. Its purpose is to use the mechanical clearing device to clear blockages over a large area and the gas clearing device to clear blockages at angles, thereby achieving the purpose of clearing blockages at angles of polyhedral silos, preventing the wear and jamming of mechanical clearing equipment caused by solidification due to long-term angle blockage, and ensuring normal production.

[0006] The technical scheme of the utility model is: a combined clearing device combining mechanical clearing and gas clearing, the combined clearing device comprises a mechanical clearing device and a gas clearing device, the mechanical clearing device comprises one or more, one or more mechanical clearing devices are arranged on the outer warehouse wall of the polyhedral silo, a mechanical clearing device comprising a plane scraper driving part is fixed on the outer warehouse wall of the polyhedral silo, the driving shaft of the scraper driving part extends to the inside of the polyhedral silo, one or more plane scrapers are fixed to the end of the main shaft of the driving part, one or more plane scrapers rotate with the main shaft as the axis, a plurality of gas clearing devices are fixed on the warehouse wall of the polyhedral silo outside the rotation range of the scraper of the mechanical clearing device, the gas clearing device comprises a main body and a telescopic nozzle, the main body of the gas clearing machine is arranged outside the warehouse wall of the silo, the telescopic nozzle is fixed at the front end of the push rod and extends to the inside of the silo, a push rod moving channel is arranged inside the main body, an electromagnetic valve is arranged at the rear end of the main body, a high-pressure gas is connected to the electromagnetic valve, the high-pressure gas drives the push rod to extend back and forth, and the electromagnetic valve controls the high-pressure gas to intermittently spray gas;

[0007] Further, the driving part of the mechanical clearing device and the electromagnetic valve of the gas clearing device are connected to the controller;

[0008] Furthermore, the plurality of gas clearing devices are arranged in a straight line, an array, or a staggered array;

[0009] Furthermore, the push rod moving channel in the main body of the gas clearing device is in a step shape, a limit baffle is arranged in the middle position of the moving channel, the limit baffle is provided with a center hole, the push rod is passed through the center hole, a closed baffle is fixed to the rear end of the push rod, a blocking step is arranged in front of the limit baffle, a spring is arranged between the limit baffle and the closed baffle, and the rear end of the main body is threadedly connected to the solenoid valve;

[0010] Furthermore, the telescopic nozzle and the push rod are connected via a truncated cone structure, and the outer periphery of the truncated cone structure matches the front end port of the main body;

[0011] Furthermore, the rear end of the main body part is connected to the solenoid valve by a hollow threaded joint, and a hexagonal screw head is arranged in the middle of the hollow threaded joint;

[0012] Furthermore, a truncated cone structure is provided inside the telescopic nozzle, and the outer periphery of the truncated cone structure matches the front end of the push rod moving channel;

[0013] Further, the solenoid valve includes an air inlet, the pressure of the high-pressure gas in the air inlet is greater than the sum of the elastic force of the built-in spring and the weight of the push rod, the telescopic nozzle, and the closed baffle, and a push rod centering sleeve is provided in the push rod moving channel;

[0014] Furthermore, one or more ventilation grooves are arranged on the inner wall of the moving passage of the spring outer push rod, and a ventilation hole is arranged on the limit baffle.

[0015] By arranging one or more polyhedron silo combined clearing devices on the outer wall of the polyhedron, the inner surface of the polyhedron can be cleared. According to the size of the polyhedron and the power, one or more gas clearing devices of multiple polyhedron silo combined clearing devices can be arranged in a line or in a row. In order to reduce the non-clearing area as much as possible, multiple gas clearing devices can be arranged in a cross-arrangement. By arranging a scraper mounting seat at the front end of the main shaft of the mechanical clearing device, the center of the scraper is fixed on the mounting seat, which can improve the uniform force on the plane scraper after the mounting seat is connected, and prevent the plane scraper from breaking and bending. By arranging a telescopic nozzle at the front end of the push rod in the main body of the pneumatic clearing device, it can be ensured that the gas can be blown between the powder and the inner wall of the bin, so as to prevent the powder from sticking to the inner wall of the bin and ensure the smooth flow of the material; by arranging a truncated cone structure between the telescopic nozzle and the connecting part of the push rod, the sealing effect between the truncated cone structure and the outlet of the push rod moving channel can be ensured under the action of the spring; by arranging a closed baffle at the rear end of the spring, the sealing effect between the closed baffle and the inlet of the push rod moving channel can be further ensured; by arranging one or more ventilation grooves on the inner wall of the push rod moving channel outside the spring and arranging ventilation holes on the limit baffle, after the high-pressure gas compresses the spring, the closed baffle moves to the position with the ventilation groove, the telescopic nozzle is separated from the front end of the push rod moving channel, and the high-pressure gas flows in the ventilation groove. The gas enters the periphery of the spring. At this time, the push rod connected to the telescopic nozzle moves forward along the center hole of the closed baffle, and the high-pressure gas The gas is blown from the vent hole provided on the limit baffle to the inner side of the telescopic nozzle and then to the inner wall of the silo; by making the pressure of the high-pressure gas greater than the spring pressure, the spring can be compressed under the action of the high-pressure gas to separate the closed baffle from the rear end of the push rod moving channel, thereby ensuring the entry of gas, and the gas can spray out high-pressure gas from the inner side of the telescopic nozzle through the push rod moving channel to achieve a clearing effect. When the air pressure in the push rod moving channel drops, the closed baffle will move backward, the airflow will become smaller or closed, the blown gas pressure will change, and the sometimes strong and sometimes weak airflow and the control of the high-pressure gas by the solenoid valve also play a certain role in the separation of the powder and the inner wall; the utility model achieves the purpose of clearing the corners of the polyhedron silo by utilizing a mechanical clearing device for large-area clearing and a gas clearing device for angle clearing, thereby preventing the wear and jamming of the mechanical clearing equipment caused by the solidification caused by the long-term angle blockage, thereby ensuring the normal progress of production. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the outer side of a combination of a single polyhedron blockage clearing machine and a gas blockage clearing machine.

[0017] Figure 2 It is a schematic diagram of the inner side of a combination of a single polyhedron blockage clearing machine and a gas blockage clearing machine.

[0018] Figure 3It is a schematic diagram of the outer side of a combination of multiple polyhedron blockage clearing machines and a gas blockage clearing machine.

[0019] Figure 4 This is a schematic diagram of the main cross-sectional structure of the gas clearing device. Figure 1 .

[0020] Figure 5 This is a schematic diagram of the main cross-sectional structure of the gas clearing device. Figure 2 .

[0021] Figure 6 is along Figure 4 The overall cross-sectional view of this part in the AA direction.

[0022] Figure 7 It is a schematic diagram of the structure of a silo blockage clearing device with an inverted frustum structure.

[0023] Figure 8 It is a schematic diagram of the structure of a polyhedron silo blockage clearing device.

[0024] Fig. 9 It is a schematic diagram of the side structure of a polyhedron silo blockage clearing device.

[0025] 10-gas clearing device, 11-telescopic nozzle, 12-main body, 13-spring, 14-push rod, 15-closed baffle, 16-hollow threaded joint, 17-air inlet, 18-solenoid valve, 19-cone structure, 20-push rod moving channel, 21-blocking step, 22-limit baffle, 23-venting groove, 24-venting hole, 30-mechanical clearing device, 31-box bottom plate, 32-box, 33-bracket, 33a-bracket bottom plate, 34-motor, 35-spindle, 36-scraper mounting seat, 37-plane scraper 38-reducer, 40-upper scraper, 41-upper warehouse body, 42-intermediate rotary warehouse, 43-lower warehouse body, 44-reduction motor, 44a-gear, 45-column, 46-slewing bearing, 50-warehouse wall. DETAILED DESCRIPTION

[0026] The specific technical solution of the present utility model is described in detail below with reference to the accompanying drawings.

[0027] The technical solution of the utility model is: a combined clearing device combining mechanical clearing and gas clearing Figure 1 It is a schematic diagram of the outer side of a single polyhedron blockage clearing machine combined with a gas blockage clearing machine. Figure 2 It is a schematic diagram of the inner side of a single polyhedron blockage clearing machine combined with a gas blockage clearing machine. Figure 3It is a schematic diagram of the outer side of a combination of multiple polyhedral blockage clearing machines and a gas blockage clearing machine, wherein the combined blockage clearing device comprises a mechanical blockage clearing device 30 and a gas blockage clearing device 10, wherein the mechanical blockage clearing device 30 comprises one or more, wherein the one or more mechanical blockage clearing devices 30 are arranged on the outer silo wall 50 of the polyhedral silo, wherein the mechanical blockage clearing device 30 comprises a planar scraper driving unit, wherein the main shaft 35 of the planar scraper driving unit extends into the interior of the polyhedral silo, wherein one or more planar scrapers 37 are fixed to the end of the main shaft 35 of the driving unit, wherein the one or more planar scrapers 37 rotate around the main shaft 35 of the driving unit as the axis, and the mechanical blockage clearing device 30 comprises one or more, wherein the one or more mechanical blockage clearing devices 30 are arranged on the outer silo wall 50 of the polyhedral silo, wherein the mechanical blockage clearing device 30 comprises a planar scraper driving unit, wherein the main shaft 35 of the planar scraper driving unit extends into the interior of the polyhedral silo, wherein the one or more planar scrapers 37 rotate around the main shaft 35 of the driving unit as the axis, and the mechanical blockage clearing device 30 comprises a planar scraper driving unit, wherein the main shaft 35 of the ... A plurality of gas clearing devices 10 are fixed on the silo wall 50 of the polyhedral silo outside the rotation range of the flat scraper 37 of the clearing device 30. The gas clearing device 10 includes a main body 12 and a telescopic nozzle 11. The main body 12 of the gas clearing device 10 is arranged outside the silo wall 50 of the silo, the telescopic nozzle 11 is fixed to the front end of the push rod 14 and extends to the inside of the silo body, a push rod moving channel 20 is arranged inside the main body 12, and a solenoid valve 18 is arranged at the rear end of the main body 12. The solenoid valve 18 is connected to high-pressure gas, and the high-pressure gas drives the push rod 14 to extend and retract forward and backward. The solenoid valve 18 controls the high-pressure gas to intermittently spray gas.

[0028] The driving part of the mechanical clearing device 10 and the electromagnetic valve 18 of the gas clearing device are connected to the controller.

[0029] The plurality of gas clearing devices 10 are arranged in a straight line, in an array, or in a staggered array.

[0030] Figure 4 This is a schematic diagram of the main cross-sectional structure of the gas clearing device. Figure 1 , Figure 5 This is a schematic diagram of the main cross-sectional structure of the gas clearing device. Figure 2 , Figure 6 is along Figure 4 The overall cross-sectional view of this part in the middle AA direction shows that the push rod moving channel 20 in the main part of the gas clearing device 10 is step-shaped, and a limit baffle 22 is arranged in the middle position of the push rod moving channel 20. The limit baffle 22 is provided with a center hole, and the push rod 14 is passed through the center hole. A closed baffle 15 is fixed to the rear end of the push rod 14, and a blocking step 21 is arranged in front of the limit baffle 22. A spring 13 is arranged between the limit baffle 22 and the closed baffle 15, and the rear end of the main body 12 is threadedly connected to the solenoid valve 18.

[0031] The telescopic nozzle 11 is connected to the push rod 14 via a truncated cone structure 19 , and the outer periphery of the truncated cone structure 19 matches the front end port of the main body 12 .

[0032] The rear end of the main body 12 is connected to the solenoid valve 18 by means of a hollow threaded joint 16 , and a hexagonal screw head is arranged in the middle of the hollow threaded joint 16 .

[0033] A truncated cone structure 19 is disposed inside the telescopic nozzle 11 , and the outer periphery of the truncated cone structure 19 matches the front end of the push rod moving channel 20 .

[0034] The solenoid valve 18 includes an air inlet 17 , the pressure of the high-pressure gas in the air inlet 17 is greater than the sum of the elastic force of the built-in spring 13 and the weight of the push rod 14 , the telescopic nozzle 11 , and the closed baffle 15 , and a push rod centering sleeve is provided in the push rod moving channel 20 .

[0035] One or more ventilation grooves 23 are arranged on the inner wall of the push rod moving channel 20 outside the spring 13 , and a ventilation hole 24 is arranged on the limit baffle 22 .

[0036] By arranging one or more polyhedron silo combined clearing devices on the outer wall of the polyhedron, the inner surface of the polyhedron can be cleared. According to the size of the polyhedron and the power, one or more gas clearing devices 10 can be arranged in a line or in a row. In order to minimize the non-clearing area, multiple gas clearing devices 10 can be arranged in a cross-arrangement. By arranging a scraper mounting seat 36 at the front end of the main shaft 35 of the mechanical clearing device 30, the center of the scraper is fixed on the mounting seat, which can improve the uniform force on the plane scraper 37 after the mounting seat is connected, and prevent the plane scraper 37 from breaking and bending. Deformation; by arranging an extension rod 14 at the front end of the push rod 14 in the main body 12 of the pneumatic clearing device 10 The telescopic nozzle 11 can ensure that the gas can be blown between the powder and the inner wall of the bin, and can prevent the powder from sticking to the inner wall of the bin, so as to ensure the smooth flow of the material. By setting a truncated cone structure 19 between the connecting part of the telescopic nozzle 11 and the push rod 14, the sealing effect between the truncated cone structure 19 and the outlet of the push rod moving channel 20 can be ensured under the action of the spring 13. By setting a closed baffle 15 at the rear end of the spring 13, the sealing effect between the closed baffle 15 and the inlet of the push rod moving channel 20 can be further ensured. By setting one or more ventilation grooves 23 on the inner wall of the push rod moving channel 20 outside the spring 13, and setting a ventilation hole 24 on the limit baffle 22, the high-pressure gas can be compressed in the spring. After the spring 13 is released, the closed baffle 15 moves to the position with the ventilation groove 23, the telescopic nozzle 11 is separated from the front end of the push rod moving channel 20, and the high-pressure gas flows in the ventilation groove 23, and the gas enters the periphery of the spring 13. At this time, the push rod 14 connected to the telescopic nozzle 11 moves forward along the center hole of the closed baffle 15, and the high-pressure gas is blown from the ventilation hole 24 set on the limit baffle 22 to the inner side of the telescopic nozzle 11, and then blown to the inner wall of the warehouse; by making the pressure of the high-pressure gas greater than the pressure of the spring 13, the spring 13 can be compressed under the action of the high-pressure gas to separate the closed baffle 15 from the rear end of the push rod moving channel 20, so as to ensure the entry of gas, and the gas can pass through the push rod moving channel 20 from High-pressure gas is sprayed out from the inner side of the telescopic nozzle 11 to achieve a clearing effect. When the air pressure in the push rod moving channel 20 drops, the closed baffle 15 will move backward, the airflow will become smaller or closed, and combined with the control of the solenoid valve 18, the blown gas pressure will change intermittently. The sometimes strong and sometimes weak airflow and the control of the high-pressure gas by the solenoid valve 18 also play a certain role in separating the powder from the inner wall. The utility model utilizes the mechanical clearing device 30 to perform large-area clearing and the gas clearing device 10 to perform angle clearing, thereby achieving the purpose of clearing the corners of the polyhedron silo, preventing the wear and jamming of the mechanical clearing equipment caused by long-term solidification due to angle blockage, and ensuring the normal progress of production.

Claims

1. A combined clearing device that combines mechanical clearing with gas clearing. Features: The combined blockage clearing device includes a mechanical blockage clearing device and a gas blockage clearing device. The mechanical blockage clearing device includes one or more mechanical blockage clearing devices, which are arranged on the outer warehouse wall of the polyhedral silo. A mechanical blockage clearing device including a scraper driving part is fixed on the outer warehouse wall of the polyhedral silo. The main shaft of the scraper driving part extends to the interior of the polyhedral silo. One or more plane scrapers are fixed to the end of the main shaft of the driving part. The one or more plane scrapers rotate around the driving shaft as the axis. Multiple gas blockage clearing devices are fixed on the warehouse wall of the polyhedral silo outside the rotation range of the plane scraper of the mechanical blockage clearing device. The gas blockage clearing device includes a main body and a telescopic nozzle. The main body of the gas blockage clearing device is arranged outside the warehouse wall of the silo, the telescopic nozzle is fixed to the front end of the push rod and extends to the interior of the silo body, a push rod moving channel is arranged inside the main body, and an electromagnetic valve is arranged at the rear end of the main body. High-pressure gas is connected to the electromagnetic valve. The high-pressure gas drives the push rod to extend back and forth, and the electromagnetic valve controls the high-pressure gas to intermittently spray gas.

2. A combined blockage clearing device combining mechanical blockage clearing and gas blockage clearing according to claim 1, Features: The driving part of the mechanical clearing device and the electromagnetic valve of the gas clearing device are connected to the controller.

3. A combined blockage clearing device combining mechanical blockage clearing and gas blockage clearing according to claim 1, Features: The plurality of gas clearing devices are arranged in a straight line, an array or a staggered array.

4. A combined blockage clearing device combining mechanical blockage clearing and gas blockage clearing according to claim 1, Features: The push rod moving channel in the main part of the gas clearing device is step-shaped, a limit baffle is arranged in the middle position of the moving channel, the limit baffle is provided with a center hole, the push rod is passed through the center hole, a closed baffle is fixed to the rear end of the push rod, a blocking step is arranged in front of the limit baffle, a spring is arranged between the limit baffle and the closed baffle, and the rear end of the main part is threadedly connected to the solenoid valve.

5. A combined blockage clearing device combining mechanical blockage clearing and gas blockage clearing according to claim 1, Features: The telescopic nozzle is connected to the push rod via a truncated cone structure, and the outer periphery of the truncated cone structure matches the front end port of the main body.

6. A combined blockage clearing device combining mechanical blockage clearing and gas blockage clearing according to claim 1, Features: The rear end of the main body part is connected to the electromagnetic valve by a hollow threaded joint, and a hexagonal screw head is arranged in the middle of the hollow threaded joint.

7. A combined blockage clearing device combining mechanical blockage clearing and gas blockage clearing according to claim 1, Features: A truncated cone structure is arranged inside the telescopic nozzle, and the outer periphery of the truncated cone structure matches the front end of the push rod moving channel.

8. A combined blockage clearing device combining mechanical blockage clearing and gas blockage clearing according to claim 3, Features: The solenoid valve comprises an air inlet, the pressure of the high-pressure gas in the air inlet is greater than the sum of the elastic force of the built-in spring and the weight of the push rod, the telescopic nozzle and the closed baffle, and a push rod centering sleeve is arranged in the push rod moving channel.

9. A combined blockage clearing device combining mechanical blockage clearing and gas blockage clearing according to claim 4, Features: One or more ventilation grooves are arranged on the inner wall of the moving passage of the spring outer push rod, and a ventilation hole is arranged on the limit baffle.

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