Screw conveyer structure with high blade pressure resistance

Abstract

The utility model discloses a spiral conveyer structure with high blade pressure resistance, which relates to the technical field of spiral conveyors and comprises a conveyer body, a conveying motor, a spiral shaft and a hard alloy block, the upper end and the lower end of the conveyer body are respectively provided with a feed port and a discharge port, and the spiral conveyer structure further comprises a spiral shaft and a hard alloy block. The screw rod is detachably mounted on the outer wall of the screw shaft, so that the maintenance and replacement processes are simplified, and the maintenance is quicker and more convenient; the hard alloy blocks are fixed to the side ends of the spiral conveying blades and used for reinforcing and supporting the spiral conveying blades. The hard alloy blocks are used for strengthening and supporting the spiral blades, so that the axial anti-pressure ability of the whole spiral blades and the outer sides of the spiral blades is improved, the spiral blades are not prone to deformation, the service life of the spiral blades is prolonged, the service life of the spiral blades is prolonged, and the service life of the spiral blades is prolonged. The wear-resistant anticorrosive coating sprayed on the surfaces of the spiral conveying blade and the wear-resistant sleeve can prevent materials from wearing or corroding the spiral conveying equipment during conveying, so that the service life of the equipment is prolonged.

Description

Technical Field

[0001] This utility model relates to the technical field of screw conveyors, specifically to a screw conveyor structure with high blade compressive strength. Background Technology

[0002] Screw conveyors, also known as auger conveyors, are continuous conveying equipment that uses the rotational motion of spiral blades to push materials from the inlet to the outlet. They are widely used in many industries such as mining, feed, grain and oil, and construction, and are mainly used to convey loose materials such as powder, granules, and small lumps.

[0003] Screw conveyors typically consist of a motor and a reducer, which provide power to rotate the screw shaft. The screw shaft is fitted with screw blades, which need to be completely removed for replacement, resulting in high costs and making maintenance inconvenient and time-consuming. Furthermore, as the screw blades rotate, they propel the material, and due to the material's weight, the blades themselves bear axial loads. The stress is greater closer to the blade edges, and over time, the blades are prone to deformation. Moreover, when transporting highly corrosive or viscous materials such as spodumene, the screw shaft and blades within the conveyor are easily worn and corroded, reducing the equipment's lifespan. Utility Model Content

[0004] This invention provides a screw conveyor structure with high blade compressive strength, which has the advantages of good compressive strength of screw conveyor blades and corrosion and wear resistance of conveyor structure, so as to solve the problems of existing screw conveyor blades being prone to deformation under stress after long-term use, blade replacement, and lack of friction and corrosion protection.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a screw conveyor structure with high blade compressive strength, comprising a conveyor body and a conveyor motor, characterized in that it further comprises a screw shaft and a hard alloy block, wherein:

[0006] The spiral shaft is fixed to the output end of the conveyor motor and rotatably connected to the conveyor body, and spiral conveying blades are fixed on the outer wall of the spiral shaft;

[0007] The cemented carbide block is fixed to the side end of the spiral conveyor blade to strengthen and support the spiral conveyor blade;

[0008] The surfaces of the spiral conveyor blades and the spiral shaft are coated with a paint to increase wear resistance and corrosion resistance.

[0009] As a preferred technical solution of this utility model, the cemented carbide block is brazed around the side end of the spiral conveyor blade to the outer wall of the wear-resistant sleeve, and both the wear-resistant sleeve and the spiral blade are fixedly connected to the cemented carbide block.

[0010] As a preferred technical solution of this utility model, the outer surface of the spiral conveyor blade is provided with an alloy reinforcement layer, which is made of nickel-based alloy and is welded onto the surface of the spiral conveyor blade.

[0011] As a preferred technical solution of this utility model, the spiral conveying blade, the hard alloy block and the alloy reinforcing layer are sequentially sprayed with a high-temperature sealing agent and a tungsten carbide coating.

[0012] As a preferred technical solution of this utility model, the outer wall of the spiral shaft is equipped with a wear-resistant sleeve that completely encloses the spiral shaft, the surface of the wear-resistant sleeve is sprayed with a nano-coating for wear resistance and corrosion prevention, and the surface of the conveyor body is sprayed with a corrosion-resistant epoxy coating.

[0013] As a preferred technical solution of this utility model, a plurality of roller blades corresponding to the discharge port of the conveyor body are installed around the outer wall of the spiral shaft near the discharge port. The roller blades are located at the front end of the spiral conveying blades and cooperate with the spiral conveying blades.

[0014] As a preferred embodiment of this utility model, the conveyor body is a sealed, enclosed conveying pipe, and a fully enclosed transparent observation window is embedded in the upper end of the conveyor body. An overload protector is installed on the side of the conveyor motor.

[0015] Compared with the prior art, this utility model provides a screw conveyor structure with high blade compressive strength, which has the following beneficial effects:

[0016] 1. This utility model strengthens and supports the spiral blades with hard alloy blocks, thereby improving the axial compressive strength of the spiral blades as a whole and on the outer side without affecting material conveying. This prevents the conveying blades from deforming under stress when pushing materials. The alloy thickening layer, which is plasma-welded onto the spiral blades, further enhances the strength of the spiral blades.

[0017] 2. This utility model protects the spiral conveyor blades by spraying a high-temperature sealing agent and tungsten carbide onto the surface of the spiral conveyor blades, thereby improving their wear resistance and corrosion resistance. The spiral shaft is isolated and protected by a wear-resistant sleeve, and the corrosion-resistant and wear-resistant coating sprayed on the outside of the wear-resistant sleeve provides wear-resistant and corrosion-resistant protection, preventing material from wearing or corroding the spiral conveyor equipment during conveying and improving the service life of the equipment.

[0018] 3. In this utility model, the discharge end of the spiral auger blade is replaced by a rod-shaped blade instead of an integral blade. When conveying highly viscous materials, the rod-shaped blade is used to stir and break up the viscous materials, preventing blockage when the materials are discharged and effectively conveying the materials.

[0019] 4. The spiral conveyor of this utility model is completely sealed and leak-free, and has an observation window to observe the material operation at any time. The outer surface of the conveyor is coated with acid-resistant epoxy resin, which effectively extends the service life of the equipment. In addition, the overload protector in the equipment can protect the motor from overload.

[0020] 5. The spiral blades of this utility model are detachable and can be installed separately. When the spiral blades are damaged, they can be replaced without replacing the spiral shaft. The process is simple and convenient, which simplifies the maintenance and replacement process, improves the replacement efficiency of the spiral blades, and makes maintenance faster and more convenient. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of one side of the spiral shaft structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the other side of the spiral shaft of this utility model;

[0024] Figure 4 This utility model Figure 3 Enlarged view of area A in the middle.

[0025] In the diagram: 1. Conveyor motor; 11. Overload protector; 2. Conveyor body; 21. Observation window; 3. Screw shaft; 31. Wear-resistant sleeve; 32. Screw conveyor blade; 33. Hard alloy block; 34. Alloy reinforcement layer; 35. Roller blade. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0027] Please see the appendix Figures 1-4 This utility model discloses a screw conveyor structure with high blade compressive strength, including a conveyor body 2 and a conveyor motor 1, characterized in that it further includes a screw shaft 3 and a hard alloy block 33, wherein:

[0028] The spiral shaft 3 is fixed to the output end of the conveyor motor 1 and rotatably connected inside the conveyor body 2. The outer wall of the spiral shaft 3 is fixed with spiral conveying blades 32. The spiral blades are detachable and can be installed. When the spiral blades are damaged, they can be replaced without replacing the spiral shaft. The process is simple and convenient, which simplifies the maintenance and replacement process, improves the replacement efficiency of the spiral blades, and makes maintenance faster and more convenient.

[0029] The hard alloy block 33 is fixed to the side end of the spiral conveying blade 32 to strengthen the support of the spiral conveying blade 32;

[0030] The surfaces of the spiral conveyor blades 32 and the spiral shaft 3 are both coated with a paint to increase wear resistance and corrosion resistance.

[0031] Please refer to the appendix. Figure 2 , Figure 3 The cemented carbide block 33 is brazed around the side end of the spiral conveying blade 32 and is attached to the outer wall of the wear-resistant sleeve 31. Both the wear-resistant sleeve 31 and the spiral blade are fixedly connected to the cemented carbide block 33.

[0032] Specifically, the cemented carbide block 33 reinforces and supports the spiral conveyor blade 32, and is fixed by brazing. Compared with welding, brazing has a lower heat input, so it has less thermal impact on the connected metals and reduces the risk of deformation and hot cracking.

[0033] Please refer to the appendix. Figure 4 The outer surface of the spiral conveying blade 32 is provided with an alloy reinforcement layer 34, which is made of nickel-based alloy and is welded onto the surface of the spiral conveying blade 32.

[0034] Specifically, by overlaying an alloy reinforcement layer 34 onto the surface of the spiral conveyor blade 32, the thickness of the edge of the spiral conveyor blade 32 is increased, the strength of the outer side of the more easily deformable spiral conveyor blade 32 is improved, and the deformation of the spiral conveyor blade due to the influence of materials is further avoided.

[0035] Please refer to the appendix. Figure 2 The spiral conveyor blades 32, the hard alloy block 33, and the alloy reinforcement layer 34 are sequentially coated with a high-temperature sealing agent and a tungsten carbide coating. A wear-resistant sleeve 31, completely enclosing the spiral shaft 3, is installed on its outer wall. The surface of the wear-resistant sleeve 31 is coated with a nano-coating for wear resistance and corrosion prevention. The surface of the conveyor body is coated with a corrosion-resistant epoxy coating.

[0036] Specifically, high-temperature sealing agents can seal defects such as micropores and cracks on the metal surface, improving the sealing performance, corrosion resistance, and mechanical properties of metal products. Tungsten carbide coatings have high hardness and high wear resistance, making the spiral conveyor blades 32, hard alloy blocks 33, and alloy reinforcement layers 34 as a whole more wear-resistant and corrosion-resistant. Example 2

[0037] Based on the above embodiment one, please refer to the appendix. Figure 2 , Figure 3 The spiral shaft 3 has multiple roller blades 35 that are corresponding to the discharge port of the conveyor body 2 installed around the outer wall of one end near the discharge port. The roller blades 35 are located at the front end of the spiral conveying blades 32 and cooperate with the spiral conveying blades 32.

[0038] Specifically, the roller blades 35 can break up materials that are stuck together during the conveying process at the end of the material conveying process, so as to avoid material blockage and failure to discharge.

[0039] The conveyor body 2 is a sealed, enclosed conveying pipe. A fully enclosed transparent observation window 21 for observing the material conveying is embedded in the upper end of the conveyor body 2. An overload protector 11 is installed on the side of the conveyor motor 1.

[0040] The working principle and usage process of this utility model are as follows: When conveying materials, after the materials enter the conveyor body 2 through the feed inlet, driven by the conveying motor 1, the spiral shaft 3 drives the spiral conveying blades 32 to rotate through the wear-resistant sleeve 31 to convey the materials. During the material conveying process, the hard alloy block 33 strengthens and supports the spiral blades, and the alloy reinforcement layer 34 on the surface of the spiral conveying blades 32 increases the thickness of the outer side of the spiral conveying blades 32, thereby increasing the strength of the spiral conveying blades 32 and preventing the spiral conveying blades 32 from being subjected to pressure during material conveying. Deformation, at the same time, the high-temperature sealing agent and tungsten carbide coating on the outer layer of the cemented carbide block 33 and the spiral conveying blade 32, as well as the nano-coating coating on the outer wall of the wear-resistant sleeve 31, prevent corrosion and wear of the cemented carbide block 33, the spiral conveying blade 32 and the wear-resistant sleeve 31 during material transportation. During the material transportation process, the fully enclosed conveyor body 2 will not leak materials. The material transportation status can be viewed through the transparent observation window 21. When the material is transported to the end of the conveyor body 2, the roller blade 35 disperses the material, causing the material to separate and be stably discharged from the outlet.

Claims

1. A screw conveyor structure with high blade compressive strength, comprising a conveyor body (2) and a conveyor motor (1), characterized in that, It also includes a spiral shaft (3) and a carbide block (33), wherein: The spiral shaft (3) is fixed at the output end of the conveyor motor (1) and rotatably connected inside the conveyor body (2). The outer wall of the spiral shaft (3) is fixed with spiral conveying blades (32). The hard alloy block (33) is fixed to the side end of the spiral conveyor blade (32) to strengthen the support of the spiral conveyor blade (32). The surfaces of the spiral conveyor blades (32) and the spiral shaft (3) are both coated with a coating to increase wear resistance and corrosion resistance.

2. The screw conveyor structure with high blade compressive strength according to claim 1, characterized in that: The cemented carbide block (33) is brazed around the side of the spiral conveying blade (32) and attached to the outer wall of the wear-resistant sleeve (31). Both the wear-resistant sleeve (31) and the spiral blade are fixedly connected to the cemented carbide block (33).

3. The screw conveyor structure with high blade compressive strength according to claim 2, characterized in that: The outer surface of the spiral conveying blade (32) is provided with an alloy reinforcement layer (34), which is made of nickel-based alloy and is welded onto the surface of the spiral conveying blade (32).

4. The screw conveyor structure with high blade compressive strength according to claim 3, characterized in that: The surfaces of the spiral conveyor blade (32), the hard alloy block (33) and the alloy reinforcement layer (34) are sequentially sprayed with a high-temperature sealing agent and a tungsten carbide coating.

5. The screw conveyor structure with high blade compressive strength according to claim 1, characterized in that: The outer wall of the spiral shaft (3) is fitted with a wear-resistant sleeve (31) that completely encloses the spiral shaft (3). The surface of the wear-resistant sleeve (31) is coated with a nano-coating for wear resistance and corrosion prevention. The surface of the conveyor body (2) is coated with a corrosion-resistant epoxy coating.

6. The screw conveyor structure with high blade compressive strength according to claim 1, characterized in that: The spiral shaft (3) has multiple roller blades (35) installed around the outer wall near the discharge port, which correspond to the discharge port of the conveyor body (2). The roller blades (35) are located at the front end of the spiral conveying blades (32), and the roller blades (35) cooperate with the spiral conveying blades (32).

7. The screw conveyor structure with high blade compressive strength according to claim 6, characterized in that: The conveyor body (2) is a sealed closed conveying pipe. The upper end of the conveyor body (2) is embedded with a fully enclosed transparent observation window (21). The side end of the conveyor motor (1) is equipped with an overload protector (11).

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