Spiral feeder for pneumatic powder conveying

Abstract

The spiral feeder for pneumatic powder conveying comprises a conveying shell, the right side of the conveying shell communicates with a pneumatic conveying pipe, a connecting shell is fixedly installed on the left side of the top of the conveying shell, a feeding shell is fixedly installed on the top of the connecting shell, and a pushing assembly is fixedly installed on the right side of the feeding shell; and a screen is fixedly mounted on the left side of the pushing assembly, supporting blocks are fixedly mounted on the front side and the rear side of the bottom of the screen correspondingly, and supporting rods are slidably mounted in inner cavities of the supporting blocks. Through cooperative use of a pushing assembly, a screen, a supporting block, a supporting rod and a spring, impurities doped in powder can be screened, the impurities and the powder are prevented from entering the spiral feeder together, large-particle materials or impurities in the powder can be effectively removed through screening, the risk that the large-particle materials or the impurities are blocked in the spiral feeder is reduced, and the service life of the spiral feeder is prolonged. Therefore, the service life of equipment can be prolonged, and the maintenance and repair cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic conveying of powders, in particular to a screw feeder for pneumatic conveying of powders. Background Art

[0002] In the powder pneumatic conveying system, the screw feeder is a common device. Powder pneumatic conveying uses gas as the conveying power to carry the powder for transportation, and the screw feeder is often used for powder supply.

[0003] Existing screw feeders for pneumatic conveying of powders usually directly place the powder inside the screw feeder for conveying, and do not have a screening function. Large particles of debris may be mixed in the powder, and the debris in the powder may cause blockage or accumulation inside the screw feeder. Especially during the conveying process, these debris will block the spiral blades or the conveying pipeline, affecting the smooth conveying of the material.

[0004] Therefore, we made improvements on this and proposed a screw feeder for pneumatic conveying of powders. Utility Model Content

[0005] The purpose of the utility model is to solve the problem that the existing screw feeder for pneumatic conveying of powders usually directly places the powder inside the screw feeder for conveying, and does not have a screening function. Large particles of debris may be mixed in the powder. The debris in the powder may cause blockage or accumulation inside the screw feeder. Especially in the process of conveying, these debris may block the spiral blades or the conveying pipeline, affecting the smooth conveying of materials.

[0006] In order to achieve the above-mentioned invention object, the utility model provides the following technical solutions:

[0007] Screw feeders for powder pneumatic conveying are used to improve the above problems.

[0008] The specific application is as follows:

[0009] It includes a conveying shell, the right side of the conveying shell is connected to a pneumatic conveying pipe, a connecting shell is fixedly installed on the left side of the top of the conveying shell, a feeding shell is fixedly installed on the top of the connecting shell, a pushing assembly is fixedly installed on the right side of the feeding shell, a screen is fixedly installed on the left side of the pushing assembly, support blocks are fixedly installed on the front and rear sides of the bottom of the screen, a support rod is slidably installed in the inner cavity of the support block, a spring is arranged on the left side of the surface of the support rod, and a side of the spring close to the support block is fixedly connected to the support block, a driving motor is fixedly installed on the left side of the conveying shell, a spiral rod is fixedly installed on the output end of the driving motor, a spiral tube is fixedly installed on the surface of the spiral rod, and a cleaning assembly is fixedly installed on the rear side of the conveying shell.

[0010] By using the push assembly, screen, support block, support rod and spring in coordination, the impurities mixed in the powder can be screened to prevent the impurities and powder from entering the screw feeder together. Screening can effectively remove large particles or impurities in the powder and reduce the risk of their blockage inside the screw feeder, which can extend the service life of the equipment and reduce maintenance and repair costs.

[0011] As a preferred embodiment of the screw feeder for pneumatic conveying of powders provided by the utility model, the pushing assembly includes a support plate, the support plate is fixedly mounted on the right side of the connecting shell, a bidirectional motor is fixedly mounted on the top of the support plate, a rotating rod is fixedly mounted on the front and rear sides of the bidirectional motor, a rotating disk is fixedly mounted on the opposite sides of the two rotating rods, a movable rod is fixedly mounted on the right side of the opposite sides of the two rotating disks, a connecting plate is movably mounted on the surface of the movable rod, a fixed frame is movably mounted on the left side of the connecting plate through a rotating shaft, and the fixed frame is fixedly connected to the screen on the side close to the screen.

[0012] As a preferred embodiment of the screw feeder for pneumatic conveying of powders provided by the utility model, stabilizing plates are fixedly installed on both sides of the bidirectional motor, and the side of the stabilizing plate close to the support plate is fixedly connected to the support plate.

[0013] As a preferred embodiment of the screw feeder for pneumatic conveying of powders provided by the utility model, the cleaning component includes a water tank, which is fixedly installed on the rear side of the conveying shell, the right side of the water tank is connected to a water inlet pipe, the right side of the water inlet pipe is connected to a water pump, the side of the water pump close to the conveying shell is fixedly connected to the conveying shell, the right side of the water pump is connected to a water outlet pipe, the bottom of the water outlet pipe is connected to a connecting pipe, and the bottom of the connecting pipe is connected to an atomizing nozzle.

[0014] As a preferred embodiment of the screw feeder for pneumatic conveying of powders provided by the utility model, two stabilizing blocks are fixedly installed on the top and bottom of the water tank, and the stabilizing blocks are fixedly connected to the conveying shell on one side close to the conveying shell.

[0015] As a preferred embodiment of the screw feeder for pneumatic conveying of powders provided by the utility model, two positioning plates are fixedly installed on the front and rear sides of the connecting shell, and the positioning plates are fixedly connected to the conveying shell on one side close to the conveying shell.

[0016] As a preferred embodiment of the screw feeder for pneumatic conveying of powders provided by the utility model, a limiting plate is sleeved on the surface of the driving motor, and the limiting plate is fixedly connected to the conveying shell on a side close to the conveying shell.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] By using the push assembly, screen, support block, support rod and spring in coordination, the impurities mixed in the powder can be screened to prevent the impurities and powder from entering the screw feeder together. Screening can effectively remove large particles or impurities in the powder and reduce the risk of their blockage inside the screw feeder, which can extend the service life of the equipment and reduce maintenance and repair costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of a screw feeder for pneumatic conveying of powders provided in this application;

[0020] Figure 2 A schematic diagram of the front and cross-sectional view of the structure of the screw feeder for pneumatic conveying of powders provided in the present application;

[0021] Figure 3 A schematic rear view of the structure of a screw feeder for pneumatic conveying of powders provided in the present application;

[0022] Figure 4 A schematic diagram of the front view of the screen of the screw feeder for pneumatic conveying of powders provided in the present application;

[0023] Figure 5 A schematic diagram of the front view of the driving component of the screw feeder for pneumatic conveying of powders provided in the present application;

[0024] Figure 6 This is a schematic front view of the cleaning component of the screw feeder for pneumatic conveying of powders provided in the present application.

[0025] Indicated in the figure:

[0026] 1. Conveying shell; 2. Pneumatic conveying pipe; 3. Connecting shell; 4. Feeding shell; 5. Pushing assembly; 501. Support plate; 502. Bidirectional motor; 503. Rotating rod; 504. Rotating disk; 505. Movable rod; 506. Connecting plate; 507. Fixed frame; 508. Stabilizing plate; 6. Screen; 7. Support block; 8. Support rod; 9. Spring; 10. Driving motor; 11. Screw rod; 12. Screw tube; 13. Cleaning assembly; 1301. Water tank; 1302. Water inlet pipe; 1303. Water pump; 1304. Water outlet pipe; 1305. Connecting pipe; 1306. Atomizing nozzle; 1307. Stabilizing block; 14. Positioning plate; 15. Limiting plate. DETAILED DESCRIPTION

[0027] To make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments.

[0028] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the present invention to be protected, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0031] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "upper", "lower", etc. is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the invention product is usually placed when in use, or the orientation or position relationship commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0032] As described in the background technology, the existing screw feeders for pneumatic conveying of powders usually directly place the powder inside the screw feeder for conveying, and do not have a screening function. Large particles of debris may be mixed in the powder. The debris in the powder may cause blockage or accumulation inside the screw feeder. Especially in the conveying process, these debris may block the spiral blades or the conveying pipeline, affecting the smooth conveying of materials.

[0033] In order to solve this technical problem, the utility model provides a screw feeder for pneumatic conveying of powders.

[0034] Specifically, please refer to Figure 1-6The screw feeder for pneumatic conveying of powders specifically includes: a conveying shell 1, a pneumatic conveying pipe 2 is connected to the right side of the conveying shell 1, a connecting shell 3 is fixedly installed on the left side of the top of the conveying shell 1, a feeding shell 4 is fixedly installed on the top of the connecting shell 3, a pushing component 5 is fixedly installed on the right side of the feeding shell 4, a screen 6 is fixedly installed on the left side of the pushing component 5, support blocks 7 are fixedly installed on the front and rear sides of the bottom of the screen 6, a support rod 8 is slidably installed in the inner cavity of the support block 7, a spring 9 is arranged on the left side of the surface of the support rod 8, and the side of the spring 9 close to the support block 7 is fixedly connected to the support block 7, a driving motor 10 is fixedly installed on the left side of the conveying shell 1, a spiral rod 11 is fixedly installed on the output end of the driving motor 10, a spiral tube 12 is fixedly installed on the surface of the spiral rod 11, and a cleaning component 13 is fixedly installed on the rear side of the conveying shell 1.

[0035] By using the push assembly 5, the screen 6, the support block 7, the support rod 8 and the spring 9 in coordination, the impurities mixed in the powder can be screened to prevent the impurities and the powder from entering the interior of the screw feeder together. Screening can effectively remove large particles or impurities in the powder and reduce the risk of their clogging inside the screw feeder, which can extend the service life of the equipment and reduce maintenance and repair costs.

[0036] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0037] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0038] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0039] Example 1

[0040] Please refer to Figure 1-6A screw feeder for pneumatic conveying of powders comprises a conveying shell 1, the right side of the conveying shell 1 is connected with a pneumatic conveying pipe 2, a connecting shell 3 is fixedly installed on the left side of the top of the conveying shell 1, a feeding shell 4 is fixedly installed on the top of the connecting shell 3, a pushing component 5 is fixedly installed on the right side of the feeding shell 4, a screen 6 is fixedly installed on the left side of the pushing component 5, a support block 7 is fixedly installed on the front and rear sides of the bottom of the screen 6, a support rod 8 is slidably installed in the inner cavity of the support block 7, a spring 9 is arranged on the left side of the surface of the support rod 8, and the side of the spring 9 close to the support block 7 is fixedly connected to the support block 7, a driving motor 10 is fixedly installed on the left side of the conveying shell 1, a spiral rod 11 is fixedly installed on the output end of the driving motor 10, a spiral tube 12 is fixedly installed on the surface of the spiral rod 11, and a cleaning component 13 is fixedly installed on the rear side of the conveying shell 1.

[0041] During the implementation process, the powder enters the interior of the connecting shell 3 through the feed shell 4. When entering the interior of the connecting shell 3, the powder will fall to the top of the screen 6. The screen 6 can be used to screen the large particles of impurities mixed in the powder to prevent the impurities and the powder from entering the interior of the screw feeder together. The screened powder falls into the interior of the conveying shell 1, and the drive motor 10 is started. The drive motor 10 drives the screw rod 11 and the spiral tube 12 to rotate. When the spiral tube 12 rotates, it drives the powder that has fallen into the conveying shell 1 to be transported to the inside of the pneumatic conveying pipe 2.

[0042] Example 2

[0043] The pushing assembly 5 includes a support plate 501, which is fixedly mounted on the right side of the connecting shell 3, a bidirectional motor 502 is fixedly mounted on the top of the support plate 501, a rotating rod 503 is fixedly mounted on the front and rear sides of the bidirectional motor 502, a rotating disk 504 is fixedly mounted on the opposite side of the two rotating rods 503, a movable rod 505 is fixedly mounted on the right side of the opposite side of the two rotating disks 504, a connecting plate 506 is movably mounted on the surface of the movable rod 505, a fixing frame 507 is movably mounted on the left side of the connecting plate 506 through a rotating shaft, and the fixing frame 507 is fixedly connected to the screen 6 on the side close to the screen 6. Stabilizing plates 508 are fixedly mounted on both sides of the bidirectional motor 502, and the stabilizing plates 508 are fixedly connected to the support plate 501 on the side close to the support plate 501.

[0044] During the implementation process, when the screen 6 is screening large particles of debris in the powder, the bidirectional motor 502 is started. When in use, the bidirectional motor 502 drives the rotating disk 504 to rotate through the rotating rod 503. Then, when the rotating disk 504 rotates, it drives the fixed frame 507 to move through the movable rod 505 and the connecting plate 506. When the fixed frame 507 moves, it drives the screen 6 to move, thereby shaking and screening the powder, thereby increasing the efficiency of the screen 6 during screening.

[0045] Example 3

[0046] The cleaning assembly 13 includes a water tank 1301, which is fixedly installed on the rear side of the conveying housing 1. The right side of the water tank 1301 is connected to a water inlet pipe 1302, and the right side of the water inlet pipe 1302 is connected to a water pump 1303. The side of the water pump 1303 close to the conveying housing 1 is fixedly connected to the conveying housing 1. The right side of the water pump 1303 is connected to a water outlet pipe 1304, and the bottom of the water outlet pipe 1304 is connected to a connecting pipe 1305, and the bottom of the connecting pipe 1305 is connected to an atomizing nozzle 1306. Two stabilizing blocks 1307 are fixedly installed on the top and bottom of the water tank 1301, and the stabilizing blocks 1307 are fixedly connected to the conveying housing 1 on the side close to the conveying housing 1.

[0047] During the implementation process, after the powder conveying is completed, the water pump 1303 is started. When in use, the water in the water tank 1301 is conveyed to the inside of the connecting pipe 1305 through the water inlet pipe 1302 and the water outlet pipe 1304. The water in the connecting pipe 1305 is sprayed to the inside of the conveying shell 1 through the atomizing nozzle 1306, thereby cleaning the inside of the conveying shell 1. The powder material may adhere to the inside of the equipment during the conveying process, forming lumps or scale, affecting the operating efficiency and accuracy of the equipment. Regular cleaning can prevent these problems and maintain the normal operation and high efficiency of the equipment.

[0048] When in use, the powder enters the interior of the connecting shell 3 through the feed shell 4. When the powder enters the interior of the connecting shell 3, it will fall to the top of the screen 6. The large particles of impurities mixed in the powder can be screened through the screen 6 to prevent the impurities and powder from entering the interior of the spiral feeder together. When the screen 6 is screening the large particles of impurities in the powder, the bidirectional motor 502 is started. When in use, the bidirectional motor 502 will drive the rotating disk 504 to rotate through the rotating rod 503. Then, when the rotating disk 504 rotates, it drives the fixed frame 507 to move through the movable rod 505 and the connecting plate 506. When the fixed frame 507 moves, it drives the screen 6 to move, so as to shake and screen the powder, thereby increasing the efficiency of the screen 6 during screening, and the screened powder falls to the inner part of the conveying shell 1. The driving motor 10 is started, and the driving motor 10 drives the spiral rod 11 and the spiral tube 12 to rotate. When the spiral tube 12 rotates, it drives the powder that falls into the conveying shell 1 to be conveyed to the inside of the pneumatic conveying pipe 2. When the powder is conveyed, the water pump 1303 is started. When in use, the water pump 1303 conveys the water in the water tank 1301 to the inside of the connecting pipe 1305 through the water inlet pipe 1302 and the water outlet pipe 1304. The water in the connecting pipe 1305 is sprayed to the inside of the conveying shell 1 through the atomizing nozzle 1306, so as to clean the inside of the conveying shell 1. The powder material may adhere to the inside of the equipment during the conveying process, forming lumps or scaling, which affects the operating efficiency and accuracy of the equipment. Regular cleaning can prevent these problems and maintain the normal operation and high efficiency of the equipment.

[0049] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. A screw feeder for pneumatic conveying of powders, comprising a conveying housing (1), characterized in that: The right side of the conveying shell (1) is connected to a pneumatic conveying pipe (2); a connecting shell (3) is fixedly installed on the left side of the top of the conveying shell (1); a feeding shell (4) is fixedly installed on the top of the connecting shell (3); a pushing assembly (5) is fixedly installed on the right side of the feeding shell (4); a screen (6) is fixedly installed on the left side of the pushing assembly (5); support blocks (7) are fixedly installed on the front and rear sides of the bottom of the screen (6); a support rod (8) is slidably installed in the inner cavity of the support block (7); a spring (9) is provided on the left side of the surface of the support rod (8); a side of the spring (9) close to the support block (7) is fixedly connected to the support block (7); a driving motor (10) is fixedly installed on the left side of the conveying shell (1); a spiral rod (11) is fixedly installed on the output end of the driving motor (10); a spiral tube (12) is fixedly installed on the surface of the spiral rod (11); and a cleaning assembly (13) is fixedly installed on the rear side of the conveying shell (1).

2. A screw feeder for pneumatic conveying of powders according to claim 1, characterized in that: The pushing assembly (5) comprises a support plate (501), wherein the support plate (501) is fixedly mounted on the right side of the connecting shell (3), a bidirectional motor (502) is fixedly mounted on the top of the support plate (501), a rotating rod (503) is fixedly mounted on the front and rear sides of the bidirectional motor (502), a rotating disk (504) is fixedly mounted on the opposite side of the two rotating rods (503), a movable rod (505) is fixedly mounted on the right side of the opposite side of the two rotating disks (504), a connecting plate (506) is movably mounted on the surface of the movable rod (505), a fixed frame (507) is movably mounted on the left side of the connecting plate (506) via a rotating shaft, and the fixed frame (507) is fixedly connected to the screen (6) on a side close to the screen (6).

3. A screw feeder for pneumatic conveying of powders according to claim 2, characterized in that: Stabilizing plates (508) are fixedly mounted on both sides of the bidirectional motor (502), and a side of the stabilizing plate (508) close to the support plate (501) is fixedly connected to the support plate (501).

4. The screw feeder for pneumatic conveying of powder according to claim 1, characterized in that: The cleaning component (13) comprises a water tank (1301), wherein the water tank (1301) is fixedly mounted on the rear side of the conveying housing (1); the right side of the water tank (1301) is connected to a water inlet pipe (1302); the right side of the water inlet pipe (1302) is connected to a water pump (1303); the side of the water pump (1303) close to the conveying housing (1) is fixedly connected to the conveying housing (1); the right side of the water pump (1303) is connected to a water outlet pipe (1304); the bottom of the water outlet pipe (1304) is connected to a connecting pipe (1305); the bottom of the connecting pipe (1305) is connected to an atomizing nozzle (1306).

5. The screw feeder for pneumatic conveying of powder according to claim 4, characterized in that: Two stabilizing blocks (1307) are fixedly mounted on the top and bottom of the water tank (1301), and the stabilizing blocks (1307) are fixedly connected to the conveying shell (1) on a side close to the conveying shell (1).

6. The screw feeder for pneumatic conveying of powder according to claim 1, characterized in that: Two positioning plates (14) are fixedly mounted on the front and rear sides of the connection shell (3); the positioning plates (14) are fixedly connected to the conveying shell (1) on a side close to the conveying shell (1).

7. The screw feeder for pneumatic conveying of powder according to claim 1, characterized in that: A limiting plate (15) is sleeved on the surface of the driving motor (10), and the limiting plate (15) is fixedly connected to the conveying casing (1) at a side close to the conveying casing (1).

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