Water-cooled cylinder self-cleaning dust structure

Abstract

The utility model discloses a structure of water -cooling cylinder self -cleaning dust, it includes installation cylinder and double -deck cooling jacket, be provided with first spiral vane in the inside of double -deck cooling jacket inside wall in the installation cylinder rotation, be provided with second spiral vane on the outside of double -deck cooling jacket outer wall fixed, the outer edge of second spiral vane with the inner wall of installation cylinder is contacted, be equipped with dust outlet at the bottom of installation cylinder, dust tank is communicated with through pipeline at dust outlet. Advantageous effects: the utility model simple structure, easy to realize, cleaned most dust, effectively reduced the frequency of dismantling water -cooling cylinder, reduced the work load, and improved the security of cleaning dust, reduced the possibility of destroying sealing system simultaneously, effectively guarantee the vacuum degree of vacuum melting rapid -setting furnace when working, and then ensured the quality of product.

Description

Technical Field

[0001] This utility model relates to the technical field of neodymium iron boron preparation, and in particular to a structure for a water-cooled roller that self-cleans dust. Background Technology

[0002] Neodymium iron boron (NdFeB) is an important magnetic material with excellent magnetic properties, earning it the nickname "King of Magnets." The preparation method for NdFeB involves first adding raw materials to a crucible in a smelting furnace for smelting. The smelted raw materials are then poured from the crucible nozzle into the upper tundish of an intermediate ladle device, flowing to the lower tundish. From there, the liquid is poured through the outlet of the lower tundish onto rotating cooling copper rollers. After crushing and cooling, the material is further processed into powder, molded, and sintered to obtain the NdFeB magnetic material. The application number is 202320585183. Patent .2 discloses a vacuum melting and rapid solidification furnace, specifically disclosing a melting chamber equipped with a melting device for heating and pouring materials, a crusher for cooling and crushing the molten materials, a water-cooled drum connected to the crusher and having a discharge pipe, the water-cooled drum for further cooling the crushed materials and conveying them to the discharge pipe, a guide cylinder fitted around the lower part of the discharge cylinder, and a lifting mechanism on the receiving tank for moving the guide cylinder downwards to fit against the opening of the receiving tank or moving the guide cylinder upwards away from the opening of the receiving tank. This application's guide cylinder has high guiding accuracy and can dock well with the receiving tank, thus effectively preventing material loss. The water-cooled roller consists of an mounting cylinder and a double-layer cooling jacket. The double-layer cooling jacket is rotatably installed inside the mounting cylinder, and a drive mechanism rotates it. Material enters the double-layer cooling jacket from the feed end, and its forward movement is achieved by the rotation of the double-layer cooling jacket and the movement towards the discharge end under the action of the spiral blades, thus achieving cooling of the material under vacuum or a protective atmosphere. However, due to the gap between the mounting cylinder and the double-layer cooling jacket, ultrafine dust particles from the material are ejected and accumulate in the gap when the material enters the rotating double-layer cooling jacket. After a furnace is melted and cast, the furnace needs to be opened to clean the crucible, tundish, and copper rollers. The accumulated dust particles can react with moisture in the air, releasing heat and generating flammable gas (hydrogen), creating ignition conditions. If heat accumulates and the concentration reaches the required level, there is a high risk of fire or even explosion. Furthermore, if the dust after the reaction is not cleaned in time, it will affect the quality of the product. Therefore, for product quality and production safety, the dust in the gap between the mounting cylinder and the double-layer cooling jacket needs to be cleaned regularly. The existing cleaning method involves dismantling the water-cooled roller, which is labor-intensive and poses a high risk of burns to personnel when cleaning the dust inside the roller. In addition, the dismantling process may damage the sealing system, affecting the vacuum level during later use and thus affecting product quality. Utility Model Content

[0003] The main purpose of this utility model is to provide a structure for a water-cooled roller to clean dust, which removes most of the dust, effectively reduces the frequency of disassembling the water-cooled roller, reduces the workload, and improves the safety of dust cleaning; at the same time, it reduces the possibility of damaging the sealing system, effectively ensuring the vacuum level of the vacuum melting and quick-setting furnace during operation, thereby ensuring the quality of the product.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a structure for a water-cooled roller to clean dust, comprising an installation cylinder and a double-layer cooling jacket, wherein the double-layer cooling jacket is rotatably disposed inside the installation cylinder, a first spiral blade is provided on the inner side of the inner wall of the double-layer cooling jacket, and a second spiral blade is fixed on the outer side of the outer wall of the double-layer cooling jacket, the outer edge of the second spiral blade is in contact with the inner wall of the installation cylinder, a dust outlet is provided at the bottom of the installation cylinder, and a dust tank is connected to the dust outlet through a pipe.

[0005] Furthermore, the second helical blade is made of high-temperature resistant rubber.

[0006] Furthermore, the second helical blade has a helical direction opposite to that of the first helical blade.

[0007] This utility model has the following beneficial effects: This invention has a simple structure and is easy to implement. By fixing a second spiral blade to the outer side of the double-layer cooling jacket, the second spiral blade also rotates relative to the mounting cylinder during the rotation of the double-layer cooling jacket to cool the material. This pushes the dust that falls on the outer side of the double-layer cooling jacket towards the dust outlet, cleaning up most of the dust. This effectively reduces the frequency of disassembling the water-cooled roller, reduces the workload, and improves the safety of dust cleaning. At the same time, it reduces the possibility of damaging the sealing system, effectively ensuring the vacuum level of the vacuum melting and quick-setting furnace during operation, thereby ensuring product quality. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0009] Figure 1 This is a schematic diagram of the overall structure of a water-cooled roller for self-cleaning dust according to this utility model.

[0010] In the diagram: 1. Installation cylinder, 11. Dust outlet, 2. Double-layer cooling jacket, 3. First spiral blade, 4. Second spiral blade, 5. Dust tank. Detailed Implementation

[0011] The following is in conjunction with the appendix Figure 1 The principles and features of this utility model are described, making the technical means, creative features, and achieved objectives of this utility model easy to understand, and further elaborating on this utility model.

[0012] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0013] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0014] like Figure 1 As shown, the technical solution adopted by this utility model is as follows: a structure for a water-cooled roller to clean dust, which includes an installation cylinder 1 and a double-layer cooling jacket 2. The double-layer cooling jacket 2 is rotatably arranged inside the installation cylinder 1. A first spiral blade 3 is provided on the inner side of the inner wall of the double-layer cooling jacket 2, and a second spiral blade 4 is fixed on the outer side of the outer wall of the double-layer cooling jacket 2. The outer edge of the second spiral blade 4 is in contact with the inner wall of the installation cylinder 1. A dust outlet 11 is provided at the bottom of the installation cylinder 1. The dust outlet 11 is close to the feed end of the double-layer cooling jacket 2, so that the dust overflowing from the feed end of the double-layer cooling jacket 2 is blocked by the second spiral blade 4 and discharged from the dust outlet 11. A dust tank 5 is connected to the dust outlet 11 through a pipe. The second spiral blade 4 is made of high-temperature resistant rubber, and the spiral direction of the second spiral blade 4 is opposite to that of the first spiral blade 3.

[0015] Working principle: The crushed material enters the double-layer cooling jacket 2 through the feed pipe. The first spiral blade 3 in the rotating double-layer cooling jacket 2 drives the material forward. At the same time, the heat of the material is carried away by the cooling water in the receiving cavity of the double-layer cooling jacket 2 and then discharged from the discharge end. The rotating double-layer cooling jacket 2 simultaneously drives the second spiral blade 4 to rotate, pushing the dust that enters the gap between the mounting cylinder 1 and the double-layer cooling jacket 2 to the dust outlet 11. The dust falls from the dust outlet 11 into the dust tank 5 for collection and subsequent processing. This process cleans up most of the dust, effectively reducing the frequency of disassembling the water-cooled roller, reducing the workload, and improving the safety of dust cleaning. At the same time, it reduces the possibility of damaging the sealing system, effectively ensuring the vacuum degree during the operation of the vacuum melting and quick-setting furnace, thereby ensuring the quality of the product.

[0016] 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 structure for a water-cooled roller to self-clean dust, comprising an mounting cylinder and a double-layer cooling jacket, wherein the double-layer cooling jacket is rotatably disposed within the mounting cylinder, and a first spiral blade is provided on the inner side of the inner wall of the double-layer cooling jacket, characterized in that, A second spiral blade is fixed on the outer side of the outer wall of the double-layer cooling jacket. The outer edge of the second spiral blade contacts the inner wall of the mounting cylinder. A dust outlet is provided at the bottom of the mounting cylinder, and a dust tank is connected to the dust outlet through a pipe.

2. The structure of a water-cooled drum for self-cleaning dust as described in claim 1, characterized in that, The second helical blade is made of high-temperature resistant rubber.

3. The structure of a water-cooled drum for self-cleaning dust as described in claim 1 or 2, characterized in that, The second helical blade has the opposite helical direction to the first helical blade.

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