Bin pump with adjustable and controllable material conveying speed

Abstract

The utility model relates to the technical field of bin pumps, and discloses a bin pump with adjustable material conveying speed, which comprises a sending bin and a fluidization bin, the top end of the sending bin is a feed port, the bottom end of the sending bin is of a conical structure, the bottom end of the sending bin is a discharge port, the surface of the sending bin is fixedly provided with an exhaust valve, the fluidization bin is communicated with the discharge port, and the feed port is communicated with the fluidization bin. An air supply pipe and an exhaust pipe are fixedly installed on the two sides of the fluidization bin respectively, a rotating shaft is rotationally installed in the fluidization bin, and the driving motor drives the spiral blades and the fluidization disc to rotate through the rotating shaft. According to the bin pump, the driving motor is arranged to drive the rotating shaft to rotate forwards and reversely and drive the spiral blade and the fluidization disc to rotate, the material conveying speed from the sending bin to the fluidization bin can be controlled through different rotating speeds and rotating directions of the spiral blade, and materials are promoted to be mixed with airflow through the rotating centrifugal force of the fluidization disc and discharged from the exhaust pipe; the materials are prevented from being accumulated and blocked in the fluidization bin, and the conveying efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of silo pumps, in particular to a silo pump with adjustable material conveying speed. Background Art

[0002] The silo pump is a relatively reliable dense phase dynamic pressure pneumatic conveying device for conveying powdered materials under high pressure. The announcement number in the prior art is CN217599836U, which discloses a silo pump with strong stability and adjustable material conveying speed. Its technical scheme includes: a first pipeline, a silo pump body and a second pipeline, the silo pump body is fixed with a third pipeline, the bottom end of the third pipeline is fixed with a shell, the two sides of the shell are respectively provided with first circular holes, one side of the outer wall of the first pipeline is inserted into the first circular hole for fixing, one side of the outer wall of the second pipeline is inserted into the first circular hole for fixing, the shell is provided with a third circular hole, the top of the inner wall of the third circular hole is provided with a first groove, the inner wall of the third circular hole is fixed with a sealing shaft, the shell is fixed with a motor, the transmission shaft provided by the motor extends into the third circular hole, the transmission shaft provided by the motor passes through the sealing shaft and is rotatably connected, and the top of the transmission shaft provided by the motor is fixed with a stirring blade. The utility model has the advantages of simple structure, strong practicality, and can stir materials and prevent transportation blockage.

[0003] In actual use, since stirring blades are set at the discharge port, although the material can be stirred to avoid blockage, it also increases the resistance to gas flow, resulting in insufficient power for material transportation. Based on this, this form of only setting stirring blades has the defect of being inconvenient to control the material feeding speed, which brings inconvenience to use and needs further improvement. Utility Model Content

[0004] The purpose of the utility model is to provide a silo pump with adjustable material conveying speed to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a silo pump with adjustable material conveying speed, comprising a sending silo and a fluidizing silo, the top of the sending silo is a feed port, the bottom end of the sending silo is a conical structure, and the bottom end of the sending silo is a discharge port, and an exhaust valve is fixedly installed on the surface of the sending silo.

[0006] The fluidizing bin is fixedly installed at the bottom of the sending bin, and the fluidizing bin is connected with the discharge port. An air supply pipe and an exhaust pipe are fixedly installed on both sides of the fluidizing bin respectively. A rotating shaft is rotatably installed inside the fluidizing bin, and a spiral blade is fixedly installed on the surface of the rotating shaft. The spiral blade extends from the discharge port to the sending bin, and a fluidizing disk is rotatably installed inside the fluidizing bin. A driving motor is fixedly installed at the bottom of the fluidizing bin, and the driving motor drives the spiral blade and the fluidizing disk to rotate through the rotating shaft. The spiral blade rotates slowly to control the rhythm of material delivery, and uses the rotating centrifugal force of the fluidizing disk to promote the mixing of material and airflow and discharge it from the exhaust pipe to avoid material accumulation and blockage in the fluidizing bin.

[0007] In some embodiments, the fluidizing bin includes an upper cover body and a lower cover body, both of which are frustum structures, and the upper cover body and the lower cover body are symmetrically covered together and fixedly connected by welding. The surface of the fluidizing bin is respectively fixedly mounted with a first flange and a second flange, and the first flange and the second flange are symmetrically arranged on both sides of the fluidizing bin coaxially, and the air supply pipe and the exhaust pipe are respectively connected to the first flange and the second flange, and the high-pressure airflow is introduced into the fluidizing bin by the air supply pipe. The rotation of the fluidizing disk promotes the mixing of the high-pressure airflow and the material, and then the material is discharged from the exhaust pipe along with the airflow to realize the transportation of the material.

[0008] In some embodiments, a feed barrel is fixedly installed on the upper surface of the upper cover body, the upper end of the feed barrel is fixedly connected to the discharge port, the spiral blade passes through the feed barrel, and the outer contour surface of the spiral blade is in sliding contact with the inner wall of the feed barrel, and the spiral blade rotates to control the rhythm of material delivery.

[0009] In some embodiments, a differential transmission assembly is disposed on the inner bottom wall of the lower cover body, and the drive motor is fixedly mounted on the bottom of the lower cover body, and the rotating shaft drives the fluidizing disk to rotate through the differential transmission assembly.

[0010] Among them, the differential transmission assembly includes a ring gear, a driving gear and a planetary gear. The ring gear is fixedly installed at the bottom of the fluidizing disk, the driving gear is fixedly installed on the surface of the rotating shaft, the planetary gear is rotatably installed on the inner bottom wall of the lower cover body, and the planetary gear is meshed with the driving gear and the ring gear at the same time to realize the differential rotation of the spiral blade and the fluidizing disk.

[0011] In some embodiments, a rotating sleeve is embedded in the surface of the fluidizing disk, and a rotating shaft can rotatably pass through the rotating sleeve. A protective cover is fixedly installed on the surface of the rotating shaft, and a rotating cover of the protective cover is arranged at the upper end of the rotating sleeve. A sinking groove is opened on the inner bottom wall of the lower cover body, and the fluidizing disk is rotatably connected to the inner wall of the sinking groove through a sealing bearing. A plurality of triangular blades arranged in a circular array are fixedly installed on the upper surface of the fluidizing disk, and the lower surfaces of the triangular blades are in sliding contact with the conical inner wall of the lower cover body. The triangular blades rotate with the fluidizing disk to promote the flow of materials at the bottom of the fluidizing bin.

[0012] Beneficial Effects

[0013] The utility model provides a silo pump with adjustable material conveying speed, which has the following beneficial effects:

[0014] 1. The silo pump with adjustable material conveying speed drives the rotating shaft to rotate forward and reversely by setting a driving motor, driving the spiral blades and the fluidizing disk to rotate. The different speeds and directions of the spiral blades can control the material conveying speed from the sending bin to the fluidizing bin. The rotating centrifugal force of the fluidizing disk is used to promote the mixing of materials and airflow, and discharge them from the exhaust pipe to avoid material accumulation and blockage in the fluidizing bin. This design can well solve the problems of large air resistance in the fluidizing bin and difficult to control material delivery speed, greatly improve the conveying efficiency, and make its operation more reliable.

[0015] 2. The material conveying speed of the silo pump is adjustable. The driving motor drives the spiral blade to rotate slowly through the rotating shaft to control the rhythm of material delivery. Since the rotating shaft drives the fluidizing disk to rotate through the differential transmission assembly, the fluidizing disk can rotate at a higher speed than the spiral blade to provide power for centrifugal dispersion of materials. The fluidizing disk is provided with triangular blades, which can promote the flow of materials at the bottom of the fluidizing bin to make the discharge smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the front section structure of the utility model;

[0018] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0019] Figure 4 It is a schematic diagram of the gear ring structure viewed from above.

[0020] In the figure: 1 sending bin, 2 fluidizing bin, 3 exhaust valve, 4 air supply pipe, 5 exhaust pipe, 6 rotating shaft, 7 spiral blade, 8 fluidizing disk, 9 driving motor, 10 upper cover, 11 lower cover, 12 first flange, 13 second flange, 14 feeding barrel, 15 gear ring, 16 driving gear, 17 planetary gear, 18 rotating sleeve, 19 protective cover, 20 sealing bearing, 21 triangular blade, 22 control valve, 23 silo. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 The utility model provides a technical solution: a silo pump with adjustable material conveying speed, comprising a sending silo 1 and a fluidizing silo 2, the top of the sending silo 1 is a feed port, the bottom of the sending silo 1 is a conical structure, and the bottom of the sending silo 1 is a discharge port, and an exhaust valve 3 is fixedly installed on the surface of the sending silo 1.

[0023] The fluidized bin 2 is fixedly installed at the bottom end of the sending bin 1, and the fluidized bin 2 is communicated with the discharge port. An air supply pipe 4 and an exhaust pipe 5 are fixedly installed on both sides of the fluidized bin 2, respectively.

[0024] Among them, the fluidizing bin 2 includes an upper cover body 10 and a lower cover body 11, both of which are frustum structures, and the upper cover body 10 and the lower cover body 11 are symmetrically covered together and fixedly connected by welding. The surface of the fluidizing bin 2 is respectively fixedly installed with a first flange 12 and a second flange 13, and the first flange 12 and the second flange 13 are symmetrically arranged on both sides of the fluidizing bin 2 along the coaxial center line, and the air supply pipe 4 and the exhaust pipe 5 are respectively connected to the first flange 12 and the second flange 13.

[0025] A rotating shaft 6 is rotatably installed inside the fluidizing bin 2, and a spiral blade 7 is fixedly installed on the surface of the rotating shaft 6. The spiral blade 7 extends from the discharge port to the sending bin 1, and a fluidizing disk 8 is rotatably installed inside the fluidizing bin 2. A driving motor 9 is fixedly installed at the bottom of the fluidizing bin 2, and the driving motor 9 drives the spiral blade 7 and the fluidizing disk 8 to rotate through the rotating shaft 6.

[0026] Specifically, a feed barrel 14 is fixedly installed on the upper surface of the upper cover body 10, the upper end of the feed barrel 14 is fixedly connected to the discharge port, the spiral blade 7 passes through the feed barrel 14, and the outer contour surface of the spiral blade 7 is in sliding contact with the inner wall of the feed barrel 14, and the driving motor 9 drives the spiral blade 7 to rotate slowly through the rotating shaft 6, which is used to control the rhythm of material delivery.

[0027] A sinking groove is provided on the inner bottom wall of the lower cover body 11, and the fluidizing disc 8 is rotatably connected to the inner wall of the sinking groove through a sealed bearing 20. A plurality of triangular blades 21 arranged in a circumferential array are fixedly mounted on the upper surface of the fluidizing disc 8, and the lower surface of the triangular blades 21 is in sliding contact with the conical inner wall of the lower cover body 11.

[0028] The inner bottom wall of the lower cover body 11 is provided with a differential transmission assembly, the driving motor 9 is fixedly mounted on the bottom of the lower cover body 11, and the rotating shaft 6 drives the fluidizing disc 8 to rotate through the differential transmission assembly.

[0029] The differential transmission assembly includes a ring gear 15, a driving gear 16 and a planetary gear 17. The ring gear 15 is fixedly mounted on the bottom of the fluidizing disk 8, the driving gear 16 is fixedly mounted on the surface of the rotating shaft 6, and the planetary gear 17 is rotatably mounted on the inner bottom wall of the lower cover body 11, and the planetary gear 17 is meshed with the driving gear 16 and the ring gear 15 for transmission.

[0030] A rotating sleeve 18 is embedded in the surface of the fluidizing disc 8 , and the rotating shaft 6 can rotatably pass through the rotating sleeve 18 . A protective cover 19 is fixedly installed on the surface of the rotating shaft 6 , and the rotating cover of the protective cover 19 is arranged at the upper end of the rotating sleeve 18 .

[0031] During use, if Figure 2 As shown, a control valve 22 is installed at the bottom of the silo 23 for storing materials, and the feed port of the sending bin 1 is connected with the silo 23 through the control valve 22. When the control valve 22 is opened, the material falls into the sending bin 1, and the material is transported to the fluidizing bin 2 by the rotation of the spiral blade 7. Then, the control valve 22 is closed, and the high-pressure airflow is introduced into the fluidizing bin 2 through the air supply pipe 4. The fluidizing disk 8 rotates to promote the mixing of the high-pressure airflow and the material, and then the material is discharged from the exhaust pipe 5 along with the airflow to realize the transportation of the material.

[0032] Since the rotating shaft 6 drives the fluidizing disk 8 to rotate through the differential transmission assembly, the fluidizing disk 8 can rotate at a higher speed than the rotation speed of the spiral blade 7, thereby providing power for centrifugal dispersion of materials. In addition, the fluidizing disk 8 is provided with triangular blades 21, which rotate with the fluidizing disk 8 to promote the flow of materials at the bottom of the fluidizing bin 2. Compared with setting stirring blades in the fluidizing bin 2, the resistance of the fluidizing disk 8 to the airflow is greatly reduced, thereby making the discharge of materials smoother.

[0033] The silo pump with adjustable material conveying speed is provided with a driving motor 9 to drive the rotating shaft 6 to rotate forward and reversely, thereby driving the spiral blade 7 and the fluidizing disk 8 to rotate. The different rotation speeds and rotation directions of the spiral blade 7 can control the material conveying speed from the sending bin 1 to the fluidizing bin 2. The rotating centrifugal force of the fluidizing disk 8 is utilized to promote the mixing of the material and the airflow, and the material is discharged from the exhaust pipe 5, thereby avoiding the accumulation and blockage of the material in the fluidizing bin 2. This design can well solve the problems of large air resistance of the fluidizing bin 2 and difficult to control the material delivery speed, thereby greatly improving the conveying efficiency and making the operation more reliable.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A silo pump with adjustable material conveying speed, comprising a sending silo (1) and a fluidizing silo (2), characterized in that: The top of the sending bin (1) is a feed port, the bottom of the sending bin (1) is a conical structure, and the bottom of the sending bin (1) is a discharge port, and an exhaust valve (3) is fixedly installed on the surface of the sending bin (1); The fluidizing bin (2) is fixedly mounted at the bottom end of the sending bin (1), and the fluidizing bin (2) is connected to the discharge port. An air supply pipe (4) and an exhaust pipe (5) are fixedly mounted on both sides of the fluidizing bin (2). A rotating shaft (6) is rotatably mounted inside the fluidizing bin (2). A spiral blade (7) is fixedly mounted on the surface of the rotating shaft (6). The spiral blade (7) extends from the discharge port to the sending bin (1). A fluidizing disk (8) is rotatably mounted inside the fluidizing bin (2). A driving motor (9) is fixedly mounted at the bottom of the fluidizing bin (2). The driving motor (9) drives the spiral blade (7) and the fluidizing disk (8) to rotate via the rotating shaft (6).

2. A silo pump with adjustable material conveying speed according to claim 1, characterized in that: The fluidizing bin (2) comprises an upper cover body (10) and a lower cover body (11), both of which are frustum structures, and the upper cover body (10) and the lower cover body (11) are symmetrically covered together and fixedly connected by welding.

3. A silo pump with adjustable material conveying speed according to claim 2, characterized in that: A first flange (12) and a second flange (13) are fixedly mounted on the surface of the fluidizing bin (2), respectively. The first flange (12) and the second flange (13) are symmetrically arranged on both sides of the fluidizing bin (2) along a coaxial centerline, and an air supply pipe (4) and an air exhaust pipe (5) are respectively connected to the first flange (12) and the second flange (13).

4. A silo pump with adjustable material conveying speed according to claim 3, characterized in that: A feeding barrel (14) is fixedly mounted on the upper surface of the upper cover body (10), the upper end of the feeding barrel (14) is fixedly connected to the discharge port, the spiral blade (7) passes through the feeding barrel (14), and the outer contour surface of the spiral blade (7) is in sliding contact with the inner wall of the feeding barrel (14).

5. A silo pump with adjustable material conveying speed according to claim 4, characterized in that: The inner bottom wall of the lower cover (11) is provided with a differential transmission assembly, the driving motor (9) is fixedly mounted on the bottom of the lower cover (11), and the rotating shaft (6) drives the fluidizing disc (8) to rotate through the differential transmission assembly.

6. A silo pump with adjustable material conveying speed according to claim 5, characterized in that: The differential transmission assembly comprises a ring gear (15), a driving gear (16) and a planetary gear (17); the ring gear (15) is fixedly mounted on the bottom of the fluidizing disk (8); the driving gear (16) is fixedly mounted on the surface of the rotating shaft (6); the planetary gear (17) is rotatably mounted on the inner bottom wall of the lower cover (11); and the planetary gear (17) is meshed with the driving gear (16) and the ring gear (15) for transmission.

7. A silo pump with adjustable material conveying speed according to claim 6, characterized in that: A rotating sleeve (18) is embedded in the surface of the fluidizing disk (8), and the rotating shaft (6) can rotatably pass through the rotating sleeve (18). A protective cover (19) is fixedly installed on the surface of the rotating shaft (6), and the rotating cover of the protective cover (19) is arranged at the upper end of the rotating sleeve (18).

8. The silo pump with adjustable material conveying speed according to claim 7, characterized in that: The inner bottom wall of the lower cover (11) is provided with a sinking groove, and the fluidizing disc (8) is rotatably connected to the inner wall of the sinking groove via a sealing bearing (20). A plurality of triangular blades (21) arranged in a circumferential array are fixedly mounted on the upper surface of the fluidizing disc (8), and the lower surfaces of the triangular blades (21) are in sliding contact with the conical inner wall of the lower cover (11).

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