Bottom discharge device for zinc oxide collection system

Abstract

The utility model discloses a zinc oxide collection system bottom discharge device relates to material conveying technical field, including the fixed installation in the bottom of the collecting system's material hopper's discharge chute, both ends of discharge chute are installed with end bearing assembly respectively, and the common installation of two end bearing assembly is the discharge axle, is fixed with spiral discharge vane on the discharge axle in discharge chute, at least one intermediate bearing seat is fixedly installed in discharge chute, and the bearing cylinder of polytetrafluoroethylene material is fixedly arranged on intermediate bearing seat, and the discharge axle passes bearing cylinder, and is equipped with the material pass -through of intermediate bearing seat. The utility model reduces structure abrasion, is favorable to reducing maintenance frequency and maintenance cost, and reduces iron impurity incorporation, is favorable to reducing magnetic separation processing cost.

Description

Technical Field

[0001] This utility model relates to the field of material conveying technology, and in particular to a bottom discharge device for a zinc oxide collection system. Background Technology

[0002] In the indirect zinc oxide production process, the molten zinc in the evaporation crucible is continuously heated to form zinc vapor. This zinc vapor is then sprayed into the oxidation chamber through an upper nozzle, where it reacts with oxygen in the air to form zinc oxide particles. These particles are then transported via cooling pipes to a zinc oxide collection system for collection. This system, as described in the utility model patent with publication number "CN221182025U", uses a collection hopper at its lower part to collect the zinc oxide, and a screw discharge device at the bottom of the hopper for discharging. In actual production, a single zinc oxide kiln typically uses hundreds of filter bags. The filter bags are arranged in groups, with each group sharing a set of collection hoppers and screw discharge devices. Therefore, the collection hoppers and screw discharge devices are quite long, exceeding 10 meters. Although relatively long, the screw conveyor system transports zinc oxide collected in the entire length of the hopper in the same direction. Therefore, the conveying channel must remain continuous within the screw conveyor. To prevent oil contamination of the internal environment, no bearing mechanism is installed for auxiliary support. Consequently, the long auger mechanism within the screw conveyor inevitably experiences deflection. This leads to significant abrasion between the auger mechanism and the housing, especially between the middle section of the auger mechanism and the housing, during the discharge process. This results in frequent and costly maintenance. Furthermore, the abrasion produces fine iron filings, which become impurities in the zinc oxide. These require high-intensity magnetic separation in subsequent processing to remove them, further increasing zinc oxide production costs. Therefore, improvements to the discharge section of the zinc oxide collection system are necessary. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a bottom discharge device for a zinc oxide collection system that reduces structural erosion, facilitates lower maintenance frequency and cost, reduces iron impurity incorporation, and helps reduce magnetic separation processing costs.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a bottom discharge device for a zinc oxide collection system, comprising a discharge trough fixedly installed at the bottom of the collection hopper in the collection system, end bearing assemblies respectively installed at both ends of the discharge trough, a discharge shaft being installed on both end bearing assemblies, a spiral discharge blade being fixedly provided on the discharge shaft located in the discharge trough, at least one intermediate bearing seat being fixedly installed in the discharge trough, a bearing cylinder made of polytetrafluoroethylene being fixedly provided on the intermediate bearing seat, and the discharge shaft passing through the bearing cylinder; a material passage is provided on the intermediate bearing seat.

[0005] As a preferred technical solution, the bearing cylinder includes a lower half-cylinder and an upper half-cylinder disposed opposite to each other.

[0006] As a preferred technical solution, the intermediate bearing housing includes a bottom support seat located below the bearing cylinder and side support seats located on both sides of the bearing cylinder. The bottom support seat is fixedly connected to the lower half cylinder, the two side support seats are fixedly connected to the upper half cylinder, the bottom support seat is fixedly connected to the bottom of the discharge trough, and the two side support seats are fixedly connected to the side wall of the corresponding side of the discharge trough. The material passage is formed between the two side support seats and between the side support seats and the bottom support seat.

[0007] As a preferred technical solution, the bottom support and the two side support are made of polytetrafluoroethylene, the bottom support is integrally formed with the lower half-cylinder, and the two side support are integrally formed with the upper half-cylinder.

[0008] As a preferred technical solution, the bottom support includes a base body fixedly connected to the bottom of the discharge trough, and a bottom support rod is integrally formed between the base body and the lower half-cylinder; the side support includes a side seat body fixedly connected to the side wall of the corresponding side of the discharge trough, and a side support rod is integrally formed between the side seat body and the upper half-cylinder.

[0009] As a preferred technical solution, connecting fins are integrally formed on the side edges of the lower half cylinder and the upper half cylinder, and the connecting fins on the corresponding sides of the lower half cylinder and the upper half cylinder are bolted together.

[0010] As a preferred technical solution, the side support rod also serves as the connecting fin on the upper half-cylinder.

[0011] As a preferred technical solution, the material receiving side of the base body and the side seat body are respectively provided with a material guiding ramp.

[0012] Due to the adoption of the above technical solution, the bottom discharge device of the zinc oxide collection system includes a discharge trough fixedly installed at the bottom of the collection hopper in the collection system. End bearing assemblies are respectively installed at both ends of the discharge trough, and a discharge shaft is jointly installed on both end bearing assemblies. A spiral discharge blade is fixedly installed on the discharge shaft located within the discharge trough. At least one intermediate bearing seat is fixedly installed within the discharge trough, and a polytetrafluoroethylene (PTFE) bearing sleeve is fixedly installed on the intermediate bearing seat. The discharge shaft passes through the bearing sleeve. A material passage is provided on the intermediate bearing seat. This utility model, based on the fact that the downstream industries of zinc oxide are mainly tire manufacturing, etc., reduces the deflection of the discharge shaft by adding an intermediate bearing seat and using a PTFE bearing sleeve to rotate with the discharge shaft. This reduces structural wear and helps to lower maintenance frequency and costs. The bearing cylinder, which is in direct contact with the discharge shaft, is made of polytetrafluoroethylene (PTFE), which can easily achieve a very low coefficient of friction with the metal discharge shaft. This results in minimal rotational abrasion, and even if slight abrasion occurs, the abrasion products are mainly PTFE components, with almost no iron impurities introduced. Since PTFE is a raw material component for downstream industries such as tire manufacturing, it does not require impurity removal treatment, which helps reduce the cost of magnetic separation processing. Attached Figure Description

[0013] The following figures are intended only to illustrate and explain the present invention and do not limit the scope of the present invention. Wherein:

[0014] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model;

[0015] Figure 2 yes Figure 1 Enlarged schematic diagram of the structure at point I;

[0016] Figure 3 yes Figure 2 A schematic diagram of the AA structure;

[0017] Figure 4 yes Figure 2 A schematic diagram of the BB structure.

[0018] In the diagram: 1-Discharge chute; 2-End bearing assembly; 3-Discharge shaft; 31-Spiral discharge blade; 4-Intermediate bearing seat; 41-Bottom support seat; 411-Base body; 412-Bottom support rod body; 42-Side support seat; 421-Side seat body; 422-Side support rod body; 43-Guide ramp; 5-Bearing cylinder; 51-Lower cylinder; 52-Upper cylinder; 53-Connecting fins; 6-Passage port; 9-Collection hopper. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the following detailed description, only certain exemplary embodiments of the present invention are described by way of illustration. Undoubtedly, those skilled in the art will recognize that various modifications can be made to the described embodiments without departing from the spirit and scope of the present invention. Therefore, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.

[0020] like Figure 1 As shown, the bottom discharge device of the zinc oxide collection system includes a discharge trough 1 fixedly installed at the bottom of the collection hopper 9 in the collection system. End bearing assemblies 2 are respectively installed at both ends of the discharge trough 1, and a discharge shaft 3 is commonly installed on both end bearing assemblies 2. A spiral discharge blade 31 is fixedly mounted on the discharge shaft 3 located within the discharge trough 1. The discharge shaft 3 and the spiral discharge blade 31 constitute an auger mechanism located within the discharge trough 1. Of course, one end of the discharge shaft 3 extending out of the discharge trough 1 is connected to a discharge drive motor. The above structure and its principle are well-known technologies that are accessible to those skilled in the art, and will not be elaborated further here.

[0021] like Figures 1 to 4 As shown in the figure, in this embodiment, at least one intermediate bearing seat 4 is fixedly installed in the discharge trough 1. A polytetrafluoroethylene (PTFE) bearing cylinder 5 is fixedly mounted on the intermediate bearing seat 4, and the discharge shaft 3 passes through the bearing cylinder 5. The intermediate bearing seat 4 is provided with a material passage 6, which ensures the continuity of the entire discharge channel. This embodiment is based on the fact that the downstream industries of zinc oxide are mainly tire manufacturing, etc. By adding the intermediate bearing seat 4 for support and using the PTFE bearing cylinder 5 to rotate with the discharge shaft 3, the deflection of the discharge shaft 3 is reduced, thus reducing structural erosion and helping to reduce maintenance frequency and maintenance costs. The PTFE material used in the bearing cylinder 5, which is in direct rotational contact with the discharge shaft 3, can easily achieve a very low coefficient of friction with the metal discharge shaft 3, resulting in minimal rotational erosion. Even if slight erosion occurs, the erosion products are mainly PTFE components, with almost no iron impurities. The PTFE component itself is a raw material component of downstream industries such as tire manufacturing, and does not require impurity removal treatment, which helps to reduce the cost of magnetic separation processing.

[0022] Preferably, such as Figure 2 and Figure 3As shown, the bearing cylinder 5 includes a lower half-cylinder 51 and an upper half-cylinder 52 arranged opposite to each other. This separate design facilitates installation between the discharge trough 1 and the discharge shaft 3. Preferably, connecting fins 53 are integrally formed on the side edges of both the lower half-cylinder 51 and the upper half-cylinder 52. The connecting fins 53 on corresponding sides of the lower half-cylinder 51 and the upper half-cylinder 52 are bolted together, thereby achieving the integrity of the bearing cylinder 5 and ensuring effective rotational support.

[0023] Specifically, such as Figure 3 As shown, the intermediate bearing housing 4 includes a bottom support 41 located below the bearing cylinder 5 and side support seats 42 located on both sides of the bearing cylinder 5. The bottom support 41 is fixedly connected to the lower half-cylinder 51, and the two side support seats 42 are fixedly connected to the upper half-cylinder 52. The bottom support 41 is fixedly connected to the bottom of the discharge trough 1, and the two side support seats 42 are fixedly connected to the side walls of the corresponding sides of the discharge trough 1. The material passage 6 is formed between the two side support seats 42 and between the side support seats 42 and the bottom support 41. Thus, the bearing cylinder 5 forms a three-point support, ensuring the stability of the bearing cylinder 5 support while ensuring material passage.

[0024] In this embodiment, the fixed connection between the bottom support 41 and the bottom of the tank, and the fixed connection between the side support 42 and the side wall, are both achieved by bolt connection. For the fixed connection between the bottom support 41 and the lower half-cylinder 51, and the fixed connection between the side support 42 and the upper half-cylinder 52, in this embodiment, the bottom support 41 and the two side support 42 are made of polytetrafluoroethylene (PTFE). The bottom support 41 and the lower half-cylinder 51 are integrally formed, and the two side support 42 and the upper half-cylinder 52 are integrally formed. This integral forming achieves the purpose of fixed connection, and simplifies manufacturing while reducing the presence of metal parts in the discharge channel, further reducing the introduction of iron impurities.

[0025] Of course, since the intermediate bearing seat 4 does not have significant moving contact with other structural components, the bottom support seat 41 and the two side support seats 42 can also be made of metal, and the lower half-cylinder 51 can be fastened to the bottom support seat 41 and the upper half-cylinder 52 can be fastened to the side support seats 42 by bolts to form a fixed connection. This should also be within the protection scope of this utility model. In this embodiment, the integral molding of the bottom support seat 41 and the lower half-cylinder 51 and the integral molding of the side support seat 42 and the upper half-cylinder 52 will be described in detail later.

[0026] Preferably, such as Figures 2 to 4As shown, the bottom support 41 includes a base body 411 fixedly connected to the bottom of the discharge trough 1. A bottom support rod 412 is integrally formed between the base body 411 and the lower half-cylinder 51. This rod-base combination structure reduces the volume of the bottom support 41, achieving a large cross-section for the material outlet 6 and ensuring smooth material discharge. Similarly, the side support 42 includes a side seat body 421 fixedly connected to the side wall of the discharge trough 1 on the corresponding side. A side support rod 422 is integrally formed between the side seat body 421 and the upper half-cylinder 52. In this embodiment, where the two half-cylinders are fixedly connected by connecting fins 53, it is preferable that the side support rod 422 also serves as the connecting fin 53 on the upper half-cylinder 52, further facilitating the reduction of structural volume.

[0027] Preferably, such as Figure 2 and Figure 4 As shown, the base body 411 and the side seat body 421 are respectively provided with material guiding ramps 43 on their receiving sides to reduce the material resistance effect of zinc oxide on the material receiving surfaces of the base body 411 and the side seat body 421, and also to facilitate smooth material discharge. Of course, for this embodiment, which is basically a symmetrical structure, the material guiding ramps 43 are provided on the receiving sides of both the base body 411 and the side seat body 421 to improve the convenience of installation.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A zinc oxide collecting system bottom discharging device, comprising a discharging chute fixedly installed at the bottom of a collecting hopper in the collecting system, end bearing assemblies are respectively installed at both ends of the discharging chute, a discharging shaft is jointly installed on the two end bearing assemblies, and spiral discharging blades are fixedly arranged on the discharging shaft in the discharging chute, characterized in that: At least one intermediate bearing seat is fixedly installed inside the discharge trough, and a bearing cylinder made of polytetrafluoroethylene is fixedly installed on the intermediate bearing seat. The discharge shaft passes through the bearing cylinder. The intermediate bearing seat is provided with a material passage. ​ 2. The zinc oxide collection system bottom discharge apparatus of claim 1, wherein: The bearing cylinder includes a lower half-cylinder and an upper half-cylinder arranged opposite to each other.

3. The zinc oxide collection system draw-off apparatus of claim 2, wherein: The intermediate bearing housing includes a bottom support seat located below the bearing cylinder and side support seats located on both sides of the bearing cylinder. The bottom support seat is fixedly connected to the lower half cylinder, the two side support seats are fixedly connected to the upper half cylinder, the bottom support seat is fixedly connected to the bottom of the discharge trough, and the two side support seats are fixedly connected to the side wall of the corresponding side of the discharge trough. The material passage is formed between the two side support seats and between the side support seats and the bottom support seat.

4. The zinc oxide collection system draw device of claim 3, wherein: The bottom support and the two side supports are made of polytetrafluoroethylene. The bottom support is integrally formed with the lower half-cylinder, and the two side supports are integrally formed with the upper half-cylinder.

5. The zinc oxide collection system draw device of claim 4, wherein: The bottom support includes a base body fixedly connected to the bottom of the discharge trough, and a bottom support rod is integrally formed between the base body and the lower half-cylinder; the side support includes a side seat body fixedly connected to the side wall of the corresponding side of the discharge trough, and a side support rod is integrally formed between the side seat body and the upper half-cylinder.

6. The zinc oxide collection system draw device of claim 5, wherein: Connecting fins are integrally formed on the side edges of the lower half-cylinder and the upper half-cylinder, and the connecting fins on the corresponding sides of the lower half-cylinder and the upper half-cylinder are bolted together.

7. The zinc oxide collection system draw device of claim 6, wherein: The side support rod also serves as the connecting fin on the upper half-cylinder.

8. The zinc oxide collection system draw device of claim 5, wherein: The base body and the side seat body are respectively provided with material guiding ramps on the material receiving side.

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