Anti-caking mechanism of screw powder feeder
By using the anti-caking mechanism of the screw feeder, the problem of uneven material distribution and blockage caused by powder agglomeration is solved by using dispersing rods and vibration to break up powder agglomeration, thus achieving stable operation of the equipment.
Patent Information
- Application Number
- CN202522671649.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-17
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-17
AI Technical Summary
During operation, the powder in the screw feeder is prone to clumping, which leads to uneven material distribution and blockage, affecting the equipment's operating performance.
An anti-caking mechanism is adopted, which drives the active rod and the secondary rod to rotate through the drive motor. The combination of the dispersing rod, the cutting blade and the hammer breaks up the agglomerated powder, and the vibration of the vibrating plate and the spring breaks up the powder arch bridge.
It effectively prevents powder from clumping, ensures uniform material discharge, avoids blockages, and improves the reliability and economy of equipment operation.
Smart Images
Figure CN224929596U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of screw conveyor technology, and more particularly to an anti-caking mechanism for a screw conveyor. Background Technology
[0002] The screw conveyor is a key piece of equipment in an intermediate storage pulverizing system. It achieves bidirectional conveying of pulverized coal by driving the screw shaft to rotate in both directions via an electric motor. The equipment consists of three parts: the screw body (including the casing and screw blades), the pulverizing inlet and outlet devices (including air locks and reversing valves), and the drive unit (including a gearbox and electric motor). It can distribute and transfer pulverized coal from the same or adjacent pulverizing units, significantly improving the reliability and economy of the system. Common models are named according to the diameter of the screw blades.
[0003] Screw conveyors have become one of the mainstream equipment in the field of powder conveying due to their advantages such as simple structure, good sealing performance, and high conveying efficiency. However, during the operation of screw conveyors, it has been found that the powder is prone to agglomeration due to the influence of pressure, static electricity, and moisture, which leads to uneven material distribution and even blockage, thereby reducing the overall performance of the screw conveyor. Therefore, to solve the above problems, we provide an anti-agglomeration mechanism for screw conveyors. Utility Model Content
[0004] The purpose of this invention is to provide an anti-caking mechanism for a screw feeder to solve the problems mentioned in the background art.
[0005] The embodiments of this application adopt the following technical solutions: An anti-caking mechanism for a screw feeder includes a processing cylinder. A base is fixedly connected to the bottom surface of the processing cylinder, and a flange frame is fixedly connected to the top surface of the processing cylinder. A drive motor is fixedly installed on the right side of the processing cylinder. Two sets of bearings are fixedly embedded in the inner wall of the processing cylinder. The inner rings of the two bearings are rotatably connected to a drive rod. The right end of the drive rod is fixedly connected to the output end of the drive motor. A helical blade is fixedly connected to the outer back of the drive rod. The inner rings of the other two bearings are rotatably connected to a secondary drive rod. A plurality of annularly arranged dispersing rods are fixedly connected to the outer surface of the secondary drive rod. A slitting blade is fixedly connected to the end of each dispersing rod away from the secondary drive rod. A positioning pin is fixedly connected to the side of each pair of slitting blades that are close to each other. A hammer is movably connected to the outer surface of each positioning pin. A first pulley and a second pulley are fixedly connected to the outer surface of the left end of the secondary drive rod and the outer surface of the left end of the drive rod, respectively. The first pulley and the second pulley are connected by belt drive.
[0006] Preferably, a sealing groove is provided on the upper surface of the flange frame, and a sealing gasket is provided inside the sealing groove, and the sealing gasket is made of rubber.
[0007] Preferably, the outer surface of the processing cylinder is fixedly connected to two sets of stabilizing plates, and the top and bottom of each stabilizing plate are fixedly connected to the bottom surface of the flange frame and the upper surface of the base, respectively.
[0008] Preferably, a dustproof bag is provided below the base, and the top of the dustproof bag is fixedly connected to the bottom surface of the base.
[0009] Preferably, the upper surface of the flange frame has two sets of mounting holes, and the inner ring of each mounting hole is threaded.
[0010] Preferably, a protective cover is provided on the left side of the processing cylinder, and the left side of the protective cover is threadedly connected to the outer surface of the processing cylinder by a connecting nail.
[0011] Preferably, a vibrating plate is hinged to the inner wall of the processing cylinder by a pin, a positioning block is fixedly connected to the front of the vibrating plate and the positioning block is in contact with the processing cylinder, and springs arranged at equal intervals are fixedly connected to the front of the vibrating plate, with the front end of each spring being fixedly connected to the inner wall of the processing cylinder.
[0012] The above-described technical solutions adopted in the embodiments of this application can achieve the following beneficial effects: The drive motor rotates the main rod, which in turn drives the spiral blades to convey the powder. The first pulley, the second pulley, the bearings, and the belt work together to break up the agglomerated powder in an instant, while the cutting blade cuts off large pieces of powder. At the same time, the centrifugal force generated by the rotation of the secondary rod swings the hammer to strike the vibrating plate and compress the spring, causing the positioning block to vibrate intermittently with the processing cylinder. This breaks up the powder arching and effectively eliminates the uneven material distribution and even blockage that would otherwise reduce the overall performance of the screw conveyor. Attached Figure Description
[0013] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 Here is a three-dimensional structural diagram of the anti-caking mechanism of the screw powder feeder of this utility model; Figure 2 The diagram shows a top view of the anti-caking mechanism of the screw powder feeder of this utility model. Figure 3 See: A bottom view of the anti-caking mechanism of the screw powder feeder of this utility model; Figure 4 Here is a side view of the anti-caking mechanism of the screw powder feeder of this utility model. Figure 5 See: A rear cross-sectional view of the anti-caking mechanism of the screw powder feeder of this utility model.
[0014] In the diagram: 1. Processing cylinder; 2. Base; 3. Flange frame; 4. Sealing groove; 5. Sealing gasket; 6. Stabilizing plate; 7. Drive motor; 8. Dustproof bag; 9. Mounting hole; 10. Bearing; 11. Drive rod; 12. Protective cover; 13. Spiral blade; 14. Dispersing rod; 15. Slitting knife; 16. Positioning pin; 17. Hammer; 18. Vibrating plate; 19. Positioning block; 20. Spring; 21. Secondary drive rod; 22. First pulley; 23. Second pulley. Detailed Implementation
[0015] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. 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.
[0016] The technical solutions provided by the various embodiments of this application are described in detail below with reference to the accompanying drawings.
[0017] Please see Figure 1-5 This utility model provides a technical solution for an anti-caking mechanism in a screw powder feeder: An anti-caking mechanism for a screw feeder includes a processing cylinder 1. A base 2 is fixedly connected to the bottom surface of the processing cylinder 1, and a flange frame 3 is fixedly connected to the top surface of the processing cylinder 1. A drive motor 7 is fixedly installed on the right side of the processing cylinder 1. Two sets of bearings 10 are fixedly embedded in the inner wall of the processing cylinder 1. The inner rings of the two bearings 10 are rotatably connected to a drive rod 11. The right end of the drive rod 11 is fixedly connected to the output end of the drive motor 7. A spiral blade 13 is fixedly connected to the outer back of the drive rod 11. The inner rings of the other two bearings 10 are rotatably connected to a secondary drive rod 21. A plurality of annularly arranged dispersing rods 14 are fixedly connected to the outer surface of the secondary drive rod 21. A slitting blade 15 is fixedly connected to the end of each dispersing rod 14 away from the secondary drive rod 21. A positioning pin 16 is fixedly connected to the side of each pair of slitting blades 15 that are close to each other. The outer surface of each positioning pin 16 is movably connected to... A hammer 17 is provided. The outer surface of the left end of the secondary moving rod 21 and the outer surface of the left end of the active rod 11 are respectively fixedly connected to a first pulley 22 and a second pulley 23, and the first pulley 22 and the second pulley 23 are connected by belt drive. Specifically, through the operation of the drive motor 7, the active rod 11 and the spiral blade 13 are driven to rotate through two bearings 10. Through the cooperation of the connected first pulley 22, second pulley 23 and the other two bearings 10, the secondary moving rod 21 rotates synchronously. With the rotation of the secondary moving rod 21, the dispersing rod 14, the cutting blade 15 and the hammer 17 can be rotated. The dispersing rod 14 disperses the agglomerated powder, while the cutting blade 15 cuts the large pieces of powder. Finally, the hammer 17 strikes the vibrating plate 18 and compresses the spring 20, so that the positioning block 19 is in indirect contact with the processing cylinder 1, causing the processing cylinder 1 to vibrate, thereby breaking the powder arch bridge.
[0018] In this embodiment, a sealing groove 4 is provided on the upper surface of the flange frame 3, and a sealing gasket 5 is provided inside the sealing groove 4. The sealing gasket 5 is made of rubber. Two sets of stabilizing plates 6 are fixedly connected to the outer surface of the processing cylinder 1. The top and bottom of each stabilizing plate 6 are fixedly connected to the bottom surface of the flange frame 3 and the upper surface of the base 2, respectively. A dustproof bag 8 is provided below the base 2, and the top of the dustproof bag 8 is fixedly connected to the bottom surface of the base 2. Specifically, the cooperation of the sealing groove 4 and the sealing gasket 5 ensures that atomization or dust does not leak out. Moreover, the dustproof bag 8 at the bottom of the base 2 can collect falling dust and prevent dust from scattering. The stabilizing plates 6 can reinforce the base 2 and the flange frame 3, further enhancing their stability.
[0019] In this embodiment, the upper surface of the flange frame 3 is provided with two sets of mounting holes 9, and the inner ring of each mounting hole 9 is threaded. A protective cover 12 is provided on the left side of the processing cylinder 1. The left side of the protective cover 12 is threadedly connected to the outer surface of the processing cylinder 1 by a connecting pin. A vibrating plate 18 is hinged to the inner side wall of the processing cylinder 1 by a pin. A positioning block 19 is fixedly connected to the front side of the vibrating plate 18 and is in contact with the processing cylinder 1. Springs 20 arranged at equal intervals are fixedly connected to the front side of the vibrating plate 18. The front end of each spring 20 is fixedly connected to the inner side wall of the processing cylinder 1. Specifically, the mounting holes 9 facilitate the installation of the processing cylinder 1 at the equipment discharge port. The protective cover 12 can protect the first pulley 22 and the second pulley 23. Through the cooperation of the vibrating plate 18, the springs 20 and the positioning block 19, the vibrating plate 18 can be struck and the springs 20 can be compressed, causing the positioning block 19 to indirectly drive the processing cylinder 1 to generate micro-vibration, thereby destroying the formation of the powder arch bridge.
[0020] Working Principle: When using the anti-caking mechanism of this screw conveyor, the user first installs the processing cylinder 1 through the mounting hole 9 at the flange frame 3 to the outlet of the equipment. Then, the drive motor 7 is connected to the power supply and controlled by the control switch. The drive motor 7 drives the main rod 11 and the spiral blades 13 to rotate via two bearings 10. Through the connection of the first pulley 22, the second pulley 23, and the other two bearings 10, the secondary rod 21 rotates synchronously. With the rotation of the secondary rod 21, the dispersing rod 14 and the... The cutter 15 and the hammer 17 rotate, the dispersing rod 14 breaks up the clumps of powder, and the slitting cutter 15 cuts off large pieces of powder. Finally, the hammer 17 strikes the vibrating plate 18 and compresses the spring 20, causing the positioning block 19 to make indirect contact with the processing cylinder 1, which causes the processing cylinder 1 to vibrate and thus break up the powder arch. Since the flange frame 3 has a sealing groove 4 and a rubber sealing gasket 5, it ensures that atomization or dust does not leak out. In addition, the dustproof bag 8 at the bottom of the base 2 can collect falling dust and prevent dust from scattering, thus effectively solving the problem of powder clumping.
[0021] It should also be noted that, in terms of circuit structure, the drive and control circuits of this utility model are common and mature technologies. Those skilled in the art can select appropriate circuit components to build the circuit according to the power requirements and control requirements of the equipment. For the power supply components, common general power supply equipment on the market and electrical components of this application can be used. These are all common electrical equipment in the prior art. In addition, it needs to be connected to an external controller or control terminal. The control circuit can be implemented by those skilled in the art through simple programming. This application will not elaborate further.
[0022] The above description is merely an embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this application should be included within the scope of the claims. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalent elements of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. An anti-caking mechanism for a screw feeder, comprising a processing cylinder (1), characterized in that: A base (2) is fixedly connected to the bottom surface of the processing cylinder (1), a flange frame (3) is fixedly connected to the top surface of the processing cylinder (1), a drive motor (7) is fixedly installed on the right side of the processing cylinder (1), two sets of bearings (10) are fixedly embedded in the inner wall of the processing cylinder (1), the inner rings of the two bearings (10) are rotatably connected to a drive rod (11), the right end of the drive rod (11) is fixedly connected to the output end of the drive motor (7), a spiral blade (13) is fixedly connected to the outer back of the drive rod (11), and the inner rings of the other two bearings (10) are rotatably connected to a secondary drive rod (21). Multiple ring-shaped dispersing rods (14) are fixedly connected to the outer surface of the moving rod (21). Each dispersing rod (14) is fixedly connected to a slitting blade (15) at the end away from the secondary moving rod (21). A positioning pin (16) is fixedly connected to the side of each pair of slitting blades (15) that are close to each other. A hammer (17) is movably connected to the outer surface of each positioning pin (16). A first pulley (22) and a second pulley (23) are fixedly connected to the outer surface of the left end of the secondary moving rod (21) and the outer surface of the left end of the active rod (11), respectively. The first pulley (22) and the second pulley (23) are connected by belt drive.
2. The anti-caking mechanism for a screw powder feeder according to claim 1, characterized in that: The upper surface of the flange frame (3) is provided with a sealing groove (4), and a sealing gasket (5) is provided inside the sealing groove (4), and the sealing gasket (5) is made of rubber.
3. The anti-caking mechanism for a screw powder feeder according to claim 1, characterized in that: Two sets of stabilizing plates (6) are fixedly connected to the outer surface of the processing cylinder (1). The top and bottom of each stabilizing plate (6) are fixedly connected to the bottom surface of the flange frame (3) and the upper surface of the base (2), respectively.
4. The anti-caking mechanism for a screw powder feeder according to claim 1, characterized in that: A dustproof bag (8) is provided below the base (2), and the top of the dustproof bag (8) is fixedly connected to the bottom surface of the base (2).
5. The anti-caking mechanism for a screw powder feeder according to claim 1, characterized in that: The upper surface of the flange frame (3) is provided with two sets of mounting holes (9), and the inner ring of each mounting hole (9) is provided with threads.
6. The anti-caking mechanism for a screw powder feeder according to claim 1, characterized in that: The processing cylinder (1) is provided with a protective cover (12) on the left side, and the left side of the protective cover (12) is threadedly connected to the outer surface of the processing cylinder (1) by a connecting nail.
7. The anti-caking mechanism for a screw powder feeder according to claim 1, characterized in that: The inner wall of the processing cylinder (1) is hinged with a vibrating plate (18) by a pin. A positioning block (19) is fixedly connected to the front of the vibrating plate (18), and the positioning block (19) is in contact with the processing cylinder (1). Springs (20) arranged at equal intervals are fixedly connected to the front of the vibrating plate (18), and the front end of each spring (20) is fixedly connected to the inner wall of the processing cylinder (1).