Screw propelling cooling granulator

Abstract

The application provides a spiral propelling type cooling granulator, which comprises a shell, a conveying structure and a cutting structure. The shell is a double-layer sleeve structure, forms a cooling water channel, and the spiral flow guide cooling water channel is formed between the inner and outer shells through spiral flow guide vanes. The circulation cooling is realized through the water inlet and the water outlet. The conveying structure adopts a variable-diameter spiral propelling shaft, which is matched with the diameter change of the shell to ensure the uniform propelling of the materials. The cutting structure is driven by a high-speed motor, and the particles are cut and prevented from splashing through the cooperation of the protective cover and the scraper.

Description

Technical Field

[0001] This utility model relates to the field of material processing equipment technology, and in particular to a spiral propulsion cooling granulator. Background Technology

[0002] A granulator is a mechanical device that processes powdered, molten, or liquid raw materials into granular products, playing a vital role in industries such as chemical, pharmaceutical, and food processing. As a key piece of equipment for material forming, granulators are indispensable from traditional industries to modern high-tech industries.

[0003] Traditional granulators often use external water or air cooling to cool molten materials, and the screw conveyor shafts are mostly designed with a constant diameter. This results in problems such as low cooling efficiency, high energy consumption, easy material accumulation, or insufficient pushing pressure, leading to uneven particle formation. Utility Model Content

[0004] In view of this, the main objective of this utility model is to solve one of the above-mentioned problems.

[0005] This utility model provides a spiral propulsion cooling granulator, comprising: a shell, a conveying structure, and a cutting structure; the shell includes a housing, a feed inlet, a discharge outlet, a cooling structure, and supporting feet; the housing has a double-layer sleeve structure, comprising an outer shell and an inner shell, the inner shell being disposed inside the outer shell, and a cooling water channel forming between the outer shell and the inner shell; the feed inlet is located at the top left end of the housing, and a cover is provided at the top of the feed inlet via a rotating shaft; the discharge outlet is located at the right end of the housing; the cooling structure includes a water inlet located at the lower end of the discharge outlet and a water outlet located at the top left end of the housing; the bottom of the housing is provided with several supporting feet; wherein, cooling water flows into the cooling water channel from the water inlet, and the cooling water... Cooling water flows out of the outlet; the conveying structure includes a drive motor and a spiral propulsion shaft. The drive motor is located on the outer wall of the left end of the housing, and the spiral propulsion shaft is located inside the housing. The spiral propulsion shaft is connected to the drive shaft of the drive motor; the cutting structure includes a die head, a fixed base, a high-speed motor, a rotating shaft, a blade, and a protective cover; the die head is located at the right end of the housing, the fixed base is located at the top of the right end of the housing, the high-speed motor is located on the left side of the fixed base, the rotating shaft is located inside the fixed base through a bearing, one end of the rotating shaft is connected to the drive shaft of the high-speed motor, and the other end of the rotating shaft is connected to the blade. The protective cover is located at the top of the right end of the fixed base and covers the upper half of the blade.

[0006] Furthermore, the spiral propulsion shaft is a variable diameter spiral shaft, with the diameter of the spiral propulsion shaft gradually narrowing from left to right, and the diameter of the housing gradually narrowing from left to right, with the change in the diameter of the housing matching the change in the diameter of the spiral propulsion shaft.

[0007] Furthermore, the cooling structure of the outer shell includes a spiral guide vane disposed between the outer shell and the inner shell. The spiral guide vane restricts the flow direction of the cooling water, so that the flow direction of the cooling water is spiral around the outer shell.

[0008] Furthermore, the protective cover of the cutting structure includes two scrapers, which are respectively disposed on the left and right sides inside the protective cover, and the blade is disposed between the two scrapers, with both scrapers in contact with the blade.

[0009] Furthermore, the outer casing includes a drain outlet, which is located at the bottom left side of the casing. The drain outlet connects to the cooling water channel between the outer casing and the inner casing, and a drain cap is spirally connected to the left side of the drain outlet.

[0010] Furthermore, a number of heat dissipation fins are evenly distributed on the outer surface of the outer casing.

[0011] The beneficial effects of this utility model are as follows:

[0012] The diameter of the spiral shaft gradually narrows from left to right, which, together with the change in the diameter of the shell, enhances the material propulsion pressure, prevents blockage, and improves the uniformity of granulation density. The double-layer sleeve structure forms a cooling water channel, and the cooling water flows in a spiral shape through the spiral guide vanes, which improves the cooling efficiency and avoids uneven local cooling. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a spiral propulsion cooling granulator according to the present invention;

[0014] Figure 2 This is a schematic diagram of the outer shell of this utility model;

[0015] Figure 3 This is a schematic diagram of the conveying structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the cutting structure of this utility model;

[0017] The above figures include the following reference numerals:

[0018] 1. Outer shell; 101. Shell; 1011. Outer shell; 1012. Inner shell; 102. Feed inlet; 1021. Cover; 103. Discharge outlet; 104. Cooling structure; 1041. Water inlet; 1042. Water outlet; 1043. Spiral guide vane; 105. Support foot; 106. Water outlet; 107. Heat dissipation fins; 2. Conveying structure; 201. Drive motor; 202. Spiral propulsion shaft; 3. Cutting structure; 301. Die head; 302. Fixing base; 303. High-speed motor; 304. Rotating shaft; 305. Blade; 306. Protective cover; 307. Scraper. Detailed Implementation

[0019] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in the present application can be combined with each other.

[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are 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, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it 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. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances. The present application will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] like Figure 1 As shown in the preferred embodiment of the present invention, a spiral propulsion cooling granulator includes: a shell 1, a conveying structure 2, and a cutting structure 3;

[0022] like Figure 2As shown, the outer shell 1 includes a shell 101, a feed inlet 102, a discharge outlet 103, a cooling structure 104, and supporting feet 105. The shell 101 has a double-layer sleeve structure, including an outer shell 1011 and an inner shell 1012. The inner shell 1012 is disposed inside the outer shell 1011, and a cooling water channel is formed between the outer shell 1011 and the inner shell 1012. The feed inlet 102 is located at the top left end of the shell 101, and a cover 1021 is provided at the top of the feed inlet 102 via a rotating shaft. The discharge outlet 103 is located at the top of the shell. At the right end of 101, the cooling structure 104 includes a water inlet 1041 located at the lower end of the discharge port 103 and a water outlet 1042 located at the top left end of the housing 101. The bottom of the housing 101 is provided with several support feet 105. Cooling water flows into the cooling channel from the water inlet 1041 and flows out of the cooling channel from the water outlet 1042. The outer shell 1011 and the inner shell 1012 form a closed cooling channel, directly enclosing the area where the material is conveyed. The double-layer structure enables material conveying and cooling to proceed simultaneously, shortening the cooling path and reducing the size of the equipment.

[0023] like Figure 3 As shown, the conveying structure 2 includes a drive motor 201 and a spiral propulsion shaft 202. The drive motor 201 is disposed on the outer wall of the left end of the housing 1, and the spiral propulsion shaft 202 is disposed inside the housing 1. The spiral propulsion shaft 202 is connected to the drive shaft of the drive motor 201. The conveying structure 2 pushes the material toward the cutting structure 3. The drive motor 201 is preferably a variable frequency motor, which can realize stepless speed adjustment and can be adapted to materials of different viscosities (such as switching between molten plastic and rubber), avoiding the failure risk of mechanical speed change mechanism.

[0024] like Figure 4As shown, the cutting structure 3 includes a die head 301, a fixed base 302, a high-speed motor 303, a rotating shaft 304, a blade 305, and a protective cover 306. The die head 301 is located at the right end of the outer casing 1, the fixed base 302 is located at the top of the right end of the outer casing 1, the high-speed motor 303 is located on the left side of the fixed base 302, and the rotating shaft 304 is mounted inside the fixed base 302 via a bearing. One end of the rotating shaft 304 is connected to the drive shaft of the high-speed motor 303, and the other end of the rotating shaft 304 is connected to... The blade 305 is connected, and the protective cover 306 is located at the top right end of the fixed base 302. The protective cover 306 covers the upper half of the blade 305. The die head 301 allows the material to be extruded along a specific aperture channel, which can effectively control the particle diameter tolerance. The high-speed motor 303 drives the blade 305 to cut the extruded strip material to form particles. The protective cover 306 provides protection and reduces the probability of the blade causing injury to the operator. The protective cover 306 is preferably made of transparent material, which allows for visual monitoring without stopping the machine.

[0025] As a preferred embodiment of this utility model, it may also have the following additional technical features:

[0026] like Figure 3 As shown, in a preferred embodiment, the spiral propulsion shaft 202 is a variable-diameter spiral shaft, with its diameter gradually narrowing from left to right. The diameter of the housing 101 also gradually narrows from left to right, matching the diameter change of the spiral propulsion shaft 202. The gradual reduction in diameter of the spiral propulsion shaft 202 from left to right, together with the converging housing 101, forms a compression chamber, allowing the material to be gradually pressurized during transport, eliminating material backflow caused by insufficient pressure in traditional constant-diameter spiral shafts. Furthermore, the high pressure at the end enhances the fluidity of the material as it passes through the die 301, resulting in more uniform particle formation.

[0027] like Figure 2 As shown, in a preferred embodiment, the cooling structure 104 of the outer shell 1 includes a spiral guide vane 1043, which is disposed between the outer shell 1011 and the inner shell 1012. The spiral guide vane 1043 restricts the flow direction of the cooling water, causing the cooling water to flow in a spiral shape around the outer shell 1. The spiral guide vane 1043 forcibly guides the cooling water to flow along the spiral path, prolonging the residence time of the cooling water, allowing the cooling water to fully contact the high-temperature shell, improving heat exchange efficiency, and preventing local overheating that could lead to shell deformation.

[0028] like Figure 4As shown, in a preferred embodiment, the protective cover 306 of the cutting structure 3 includes two scrapers 307, which are respectively disposed on the left and right sides inside the protective cover 306. The blade 305 is disposed between the two scrapers 307, and both scrapers 307 are in contact with the blade 305. The scrapers 307 remove material adhering to the blade 305 in real time, avoiding particle tailing defects.

[0029] like Figure 2 As shown, in a preferred embodiment, the outer casing 1 includes a drain outlet 106, which is located at the bottom left side of the casing 101. The drain outlet 106 connects to the cooling water channel between the outer casing 1011 and the inner casing 1012. A drain cap is screwed to the left side of the drain outlet 106. The drain outlet 106 can quickly drain residual water from the cooling water channel, solving the problem of bacterial growth or freezing in winter caused by residual cooling water after shutdown, and reducing maintenance difficulty.

[0030] like Figure 2 As shown, in a preferred embodiment, a plurality of heat dissipation fins 107 are evenly distributed on the outer surface of the outer shell 1 to increase the heat dissipation area of ​​the outer surface of the outer shell, assist the water cooling system in heat dissipation, and prevent the heat exchange efficiency from decreasing due to excessively high cooling water temperature.

[0031] 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 spiral propulsion cooling granulator, characterized in that, include: Outer shell (1), conveying structure (2), cutting structure (3); The outer shell (1) includes a shell (101), a feed inlet (102), a discharge outlet (103), a cooling structure (104), and support feet (105); the shell (101) has a double-layer sleeve structure, the shell (101) includes an outer shell (1011) and an inner shell (1012), the inner shell (1012) is disposed inside the outer shell (1011), a cooling water channel is formed between the outer shell (1011) and the inner shell (1012), the feed inlet (102) is disposed at the top left end of the shell (101), and the... A cover (1021) is provided on the top of the feed inlet (102) via a rotating shaft. The discharge outlet (103) is located at the right end of the housing (101). The cooling structure (104) includes a water inlet (1041) located at the lower end of the discharge outlet (103) and a water outlet (1042) located at the top of the left end of the housing (101). Several support feet (105) are provided at the bottom of the housing (101). Cooling water flows into the cooling water channel from the water inlet (1041) and flows out of the cooling water channel from the water outlet (1042). The conveying structure (2) includes a drive motor (201) and a spiral propulsion shaft (202). The drive motor (201) is disposed on the outer wall of the left end of the outer casing (1), and the spiral propulsion shaft (202) is disposed inside the casing. The spiral propulsion shaft (202) is connected to the drive shaft of the drive motor (201). The cutting structure (3) includes a die head (301), a fixed base (302), a high-speed motor (303), a rotating shaft (304), a blade (305), and a protective cover (306). The die head (301) is located at the right end of the outer shell (1), the fixed base (302) is located at the top right end of the outer shell (1), the high-speed motor (303) is located on the left side of the fixed base (302), the rotating shaft (304) is located inside the fixed base (302) through a bearing, one end of the rotating shaft (304) is connected to the drive shaft of the high-speed motor (303), the other end of the rotating shaft (304) is connected to the blade (305), and the protective cover (306) is located at the top right end of the fixed base (302) and covers the upper half of the blade (305).

2. The spiral propulsion cooling granulator according to claim 1, characterized in that, The spiral propulsion shaft (202) is a variable diameter spiral shaft, and the diameter of the spiral propulsion shaft (202) gradually narrows from left to right. The diameter of the housing (101) also gradually narrows from left to right, and the change in the diameter of the housing (101) matches the change in the diameter of the spiral propulsion shaft (202).

3. The spiral propulsion cooling granulator according to claim 1, characterized in that, The cooling structure (104) of the outer shell (1) includes a spiral guide vane (1043), which is disposed between the outer shell (1011) and the inner shell (1012). The spiral guide vane (1043) restricts the flow direction of the cooling water so that the flow direction of the cooling water is spiral around the outer shell (1).

4. The spiral propulsion cooling granulator according to claim 1, characterized in that, The protective cover (306) of the cutting structure (3) includes two scrapers (307), which are respectively disposed on the left and right sides inside the protective cover (306). The blade (305) is disposed between the two scrapers (307), and both scrapers (307) are in contact with the blade (305).

5. A spiral propulsion cooling granulator according to claim 1, characterized in that, The outer shell (1) includes a drain outlet (106), which is located at the bottom left side of the shell (101). The drain outlet (106) connects to the cooling water channel between the outer shell (1011) and the inner shell (1012). A drain cap is spirally connected to the left side of the drain outlet (106).

6. A spiral propulsion cooling granulator according to claim 1, characterized in that, The outer surface of the outer shell (1) is evenly distributed with several heat dissipation fins (107).

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