A screw pusher for a centrifuge

Abstract

The utility model relates to centrifuge equipment technical field especially is a kind of spiral pusher of centrifuge, including main body, the inside of main body is provided with spiral push material component;The utility model can circulate in the inside of screw shaft by utilizing the cooling channel of the inside of screw shaft setting, the heat exchange between cooling liquid and screw shaft can effectively take away the heat generated by screw shaft, the temperature of pusher is maintained in a reasonable range, and stable temperature environment helps to maintain the flow field and centrifugal force distribution in the inside of centrifuge, since cooling channel can effectively prolong the service life of screw shaft and other components, and reduce the probability of occurrence of thermal stress and mechanical failure, so maintenance cost of equipment can be significantly reduced, material is relatively easily rolled into the conveying range of push blade in the initial stage of entering pusher by using push blade to be asymmetric design, and its blade height gradually increases along the axial direction of screw shaft.

Description

Technical Field

[0001] This utility model relates to the field of centrifuge equipment technology, specifically to a centrifuge screw feeder. Background Technology

[0002] Centrifuges are a common type of equipment in fields such as solid-liquid separation and liquid-liquid separation. They use centrifugal force to separate different substances. The performance of the screw feeder directly affects the centrifuge's separation effect, processing capacity, and operational stability. The design and material of the screw feeder directly affect the distribution and stress of the material. If the blade design is unreasonable, it may cause eddies or accumulation of material during the conveying process, affecting the separation accuracy.

[0003] A screw conveyor is a rotating component installed inside a centrifuge, typically consisting of a screw shaft and pusher blades. Its main function is to push the material entering the centrifuge along the axial direction through the rotational motion of the screw blades, thereby achieving material separation under the action of centrifugal force. The design and performance of the screw conveyor play a crucial role in the overall separation effect, processing capacity, and operational stability of the centrifuge.

[0004] Traditional screw feeders have some shortcomings. For example, they are prone to clogging during material conveying, especially when handling viscous or fibrous materials. The clogging problem is more serious. In addition, the residence time of the material in the screw feeder is uneven, resulting in unstable separation effect. Furthermore, the wear resistance and service life of the screw feeder need to be improved. Frequent replacement of the feeder will increase equipment maintenance costs and downtime. Therefore, a screw feeder for centrifuges is needed to improve the above problems. Summary of the Invention

[0005] To address the shortcomings of traditional screw feeders, such as the tendency to clog during material conveying, especially when handling viscous or fibrous materials, and the uneven residence time of materials within the screw feeder leading to unstable separation, as well as the need to improve the wear resistance and service life of screw feeders (frequent feeder replacements increase equipment maintenance costs and downtime), this invention aims to provide a screw feeder for centrifuges to solve the problems mentioned in the background.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A spiral feeder for a centrifuge includes a main body, characterized in that: a spiral feeder assembly is disposed inside the main body; The main body includes a pusher bin, and two support trays are fixedly connected to the side of the pusher bin. The spiral feeding assembly includes a spiral shaft, and feeding blades are fixedly connected to the side of the spiral shaft. The feeding blades are asymmetrically designed, and the height of the feeding blades gradually increases along the axial direction of the spiral shaft. A guide groove is provided inside the feeding blades, and several guide grooves are provided. An inlet pipe and an outlet pipe are provided on both sides of the spiral shaft.

[0007] As a preferred embodiment of this utility model, the spiral shaft has a hollow structure and a cooling channel is provided inside it.

[0008] As a preferred embodiment of this utility model, the blade spacing of the pusher blades gradually decreases along the material conveying direction.

[0009] As a preferred embodiment of this utility model, the side of the support tray is fixedly connected with a first connecting pipe and a second connecting pipe.

[0010] As a preferred embodiment of this utility model, a coolant inlet is fixedly connected to the top of the first connecting pipe, and a coolant outlet is fixedly connected to the bottom of the second connecting pipe.

[0011] As a preferred embodiment of this utility model, the top of the tray is fixedly connected with a plug, and two plugs are provided.

[0012] As a preferred embodiment of this utility model, the outer surfaces of the pusher blades and the spiral shaft are uniformly covered with a wear-resistant coating, which is a ceramic composite coating.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. In this utility model, by utilizing the cooling channel set inside the spiral shaft, the coolant can circulate inside the spiral shaft. Through heat exchange between the coolant and the spiral shaft, the heat generated by the spiral shaft can be effectively removed, maintaining the temperature of the pusher within a reasonable range. The stable temperature environment helps maintain the flow field and centrifugal force distribution inside the centrifuge. Since the cooling channel can effectively extend the service life of components such as the spiral shaft and reduce the probability of thermal stress and mechanical failure, the maintenance cost of the equipment can be significantly reduced.

[0014] 2. In this utility model, by utilizing the asymmetrical design of the pusher blades, the blade height gradually increases along the axial direction of the spiral shaft, which allows the material to be easily drawn into the conveying range of the pusher blades in the initial stage of entering the pusher. This avoids the material being unable to enter the conveying channel due to the blades being too high. As the material is conveyed along the spiral shaft, the blade height gradually increases, which can provide a larger bearing area for the material. This allows more material to be pushed at the same time, thereby improving the conveying capacity of the pusher. The guide groove can effectively guide the material attached to the blade surface to other positions in a timely manner, preventing the material from being attached to the blade surface for a long time and reducing the adhesion of the material to the blade surface. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 This is a schematic diagram of the cooling component structure of this utility model; Figure 4 This is a schematic diagram of the spiral feeding assembly of this utility model.

[0016] In the diagram: 1. Main body; 101. Pushing bin; 102. Supporting tray; 103. First connecting pipe; 104. Second connecting pipe; 105. Coolant inlet; 106. Coolant outlet; 107. Plug; 2. Spiral pusher assembly; 201. Spiral shaft; 202. Pusher blades; 203. Guide channel; 204. Feed pipe; 205. Discharge pipe. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0018] For examples, please refer to Figures 1-4 This utility model provides a technical solution: A centrifuge screw feeder includes a main body 1, and a screw feeder assembly 2 is disposed inside the main body 1.

[0019] In this embodiment, as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the main body 1 includes a feeding bin 101, and two support trays 102 are fixedly connected to the side of the feeding bin 101. The spiral feeding assembly 2 includes a spiral shaft 201, and feeding blades 202 are fixedly connected to the side of the spiral shaft 201. The feeding blades 202 are asymmetrically designed, and their height gradually increases along the axial direction of the spiral shaft 201. Several guide grooves 203 are provided inside the feeding blades 202. Feed pipes 204 and discharge pipes 205 are provided on both sides of the spiral shaft 201. The cooling channel inside the spiral shaft 201 allows for circulation within the spiral shaft 201. Through heat exchange between the coolant and the spiral shaft 201, the heat generated by the spiral shaft 201 can be effectively removed, maintaining the temperature of the pusher within a reasonable range. This stable temperature environment helps maintain the flow field and centrifugal force distribution inside the centrifuge. Since the cooling channel can effectively extend the service life of components such as the spiral shaft 201 and reduce the probability of thermal stress and mechanical failure, the maintenance cost of the equipment can be significantly reduced.

[0020] The spiral shaft 201 is hollow and has a cooling channel inside. The blade spacing of the pusher blades 202 gradually decreases along the material conveying direction. A first connecting pipe 103 and a second connecting pipe 104 are fixedly connected to the side of the support tray 102. A coolant inlet 105 is fixedly connected to the top of the first connecting pipe 103, and a coolant outlet 106 is fixedly connected to the bottom of the second connecting pipe 104. Two plugs 107 are fixedly connected to the top of the support tray 102. The pusher blades 202 are asymmetrically designed, and their blade height is along the axis of the spiral shaft 201. The gradual increase in height allows the material to be easily drawn into the conveying range of the pusher blades 202 in the early stages of entering the pusher, avoiding the difficulty of the material entering the conveying channel due to excessive blade height. As the material is conveyed along the spiral shaft 201, the blade height gradually increases, providing a larger bearing area for the material. This allows more material to be pushed at the same time, thereby improving the conveying capacity of the pusher. Meanwhile, the guide groove 203 can effectively guide the material adhering to the blade surface to other positions in a timely manner, preventing the material from adhering to the blade surface for a long time and reducing the adhesion of the material to the blade surface.

[0021] In this embodiment, as Figure 1 and Figure 4 As shown, the outer surfaces of the pusher blades 202 and the spiral shaft 201 are uniformly covered with a wear-resistant coating. The wear-resistant coating is a ceramic composite coating. The wear-resistant coating uniformly covered on the outer surfaces of the pusher blades 202 and the spiral shaft 201 is a ceramic composite coating, which has high hardness, high wear resistance and good corrosion resistance. The use of ceramic composite coating can effectively improve the service life of the spiral pusher and reduce the equipment maintenance and replacement costs caused by wear.

[0022] The working process of this utility model is as follows: When the centrifuge's spiral feeder designed according to this scheme is in operation, in practical applications, when the centrifuge is running, coolant enters the cooling channel from the coolant inlet 105 and fully exchanges heat with the spiral shaft 201 before flowing out from the coolant outlet 106. This removes the heat generated by the spiral shaft 201 during operation, ensuring that the temperature of the spiral shaft 201 remains within a reasonable range. When processing materials, after entering the centrifuge, the materials are gradually conveyed by the feed blades 202. During the conveying process, due to the asymmetrical design of the feed blades 202 and the function of the guide groove 203... The material can be evenly distributed on the pusher blades 202, reducing clogging. At the same time, the material residence time is more uniform, improving the separation effect. The wear-resistant coating evenly covering the outer surface of the pusher blades 202 and the screw shaft 201 can effectively resist the wear of the material on the pusher blades 202 and the screw shaft 201, extending the service life of the screw pusher. This high-efficiency centrifuge screw pusher effectively solves the problems of traditional screw pushers by optimizing the structure of the pusher blades 202, adding a cooling mechanism and wear-resistant coating, and improving the separation efficiency, processing capacity and operational stability of the centrifuge.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A screw conveyor for a centrifuge comprising a body (1), characterised in that: The main body (1) is provided with a spiral pusher assembly (2) inside; The main body (1) includes a pusher bin (101), and a support tray (102) is fixedly connected to the side of the pusher bin (101). There are two support trays (102). The spiral pusher assembly (2) includes a spiral shaft (201), and a pusher blade (202) is fixedly connected to the side of the spiral shaft (201). The pusher blade (202) is asymmetrically designed, and the height of the pusher blade (202) gradually increases along the axial direction of the spiral shaft (201). A guide groove (203) is provided inside the pusher blade (202), and several guide grooves (203) are provided. A feed pipe (204) and a discharge pipe (205) are provided on both sides of the spiral shaft (201).

2. A screw conveyor for a centrifuge according to claim 1, wherein The spiral shaft (201) has a hollow structure and a cooling channel is provided inside it.

3. A screw conveyor for a centrifuge according to claim 1, wherein The blade spacing of the pusher blade (202) gradually decreases along the material conveying direction.

4. A screw conveyor for a centrifuge according to claim 1, wherein The side of the tray (102) is fixedly connected to a first connecting pipe (103) and a second connecting pipe (104).

5. A screw conveyor for a centrifuge according to claim 4, wherein The top of the first connecting pipe (103) is fixedly connected to a coolant inlet (105), and the bottom of the second connecting pipe (104) is fixedly connected to a coolant outlet (106).

6. The screw feeder for a centrifuge according to claim 1, characterized in that, The top of the tray (102) is fixedly connected with a plug (107), and there are two plugs (107).

7. The screw feeder for a centrifuge according to claim 1, characterized in that, The outer surfaces of the pusher blades (202) and the spiral shaft (201) are uniformly covered with a wear-resistant coating, which is a ceramic composite coating.

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