Low-temperature colloid mill

Abstract

The utility model discloses a low-temperature colloid mill in the technical field of material crushing equipment, and aims to solve the problem of poor refrigeration effect caused by long refrigeration distance of the traditional colloid mill in the prior art. The mixing tank is arranged above the machine table, the sealing cover is connected with the upper portion of the mixing tank in a sealed mode, a first grinding disc is rotationally arranged in the mixing tank, a motor used for driving the first grinding disc to rotate is installed in the machine table, a second grinding disc is fixedly installed on the sealing cover, and the first grinding disc and the second grinding disc are opposite in position to form a grinding cavity. A feeding port is further formed in the sealing cover, a cooling liquid passage is arranged in the second grinding disc, and a liquid inlet pipe and a liquid outlet pipe are arranged on the cooling liquid passage of the second grinding disc. The cooling device is used for cooling the crushing cavity of the colloid mill, the cooling effect directly acts on one millstone, the cooling cavity at the position of the millstone is directly cooled by utilizing the heat conductivity of the millstone, the heat conduction distance is short, and the cooling effect is good.

Description

Technical Field

[0001] This utility model relates to a low-temperature colloid mill, belonging to the technical field of material crushing equipment. Background Technology

[0002] A colloid mill is a device used for fine grinding and mixing, widely used in the food, pharmaceutical, chemical, and daily chemical industries. Its main function is to refine and homogenize materials through the strong shearing and frictional forces generated between the high-speed rotating rotor and stator. Currently, during operation, as the material is ground at high speed, the temperature inside the colloid mill gradually rises, leading to excessive material temperature. This can easily cause material deformation or increased equipment wear. Traditionally, a jacket is installed around the grinding chamber to cool the material. However, this cooling method is too far from the grinding chamber and cannot directly cool it, resulting in low cooling efficiency and hindering efficient temperature control of the colloid mill's grinding chamber. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a low-temperature colloid mill for cooling the grinding chamber of the colloid mill. The cooling effect is directly applied to one of the grinding discs, and the thermal conductivity of the grinding discs is used to directly cool the cooling chamber at the grinding disc position. The heat conduction distance is short and the cooling effect is good.

[0004] To achieve the above objectives, this utility model employs the following technical solution:

[0005] This utility model provides a low-temperature colloid mill, including a machine base, a mixing tank disposed above the machine base, and a sealing cover sealed to the top of the mixing tank. A first grinding disc is rotatably disposed inside the mixing tank, and a discharge pipe is connected to the side wall of the mixing tank. A motor for driving the first grinding disc to rotate is installed inside the machine base. A second grinding disc is fixedly installed on the sealing cover. The positions of the first and second grinding discs are opposite to form a grinding chamber. A feed inlet is also installed on the sealing cover. The connecting passage of the feed inlet passes through the middle of the second grinding disc and is connected to the grinding chamber. A coolant passage is provided inside the second grinding disc, and an inlet pipe and an outlet pipe are respectively disposed on the coolant passage of the second grinding disc.

[0006] Specifically, the coolant passage includes a first annular passage and a second annular passage disposed inside the second grinding disc. The first annular passage and the second annular passage have different diameters and are connected to each other through several connecting passages. The inlet pipe and the outlet pipe are respectively directly connected to the corresponding first annular passage and the second annular passage.

[0007] Specifically, the diameter of the second annular passage is smaller than the diameter of the first annular passage, the height of the second annular passage is higher than the height of the first annular passage, the inlet pipe is connected to the first annular passage, and the outlet pipe is connected to the second annular passage.

[0008] Specifically, both the inlet pipe and the outlet pipe are installed on the sealing cover, and the second grinding disc and the sealing cover are sealed together.

[0009] Specifically, the sealing cover has several guide rods inside, and the side of the second grinding disc has several guide holes that can slide and cooperate with the guide rods.

[0010] Specifically, the sealing cover is equipped with a temperature sensor for detecting the temperature of the second grinding disc.

[0011] Specifically, the side wall of the mixing tank is formed by a jacket with a water tank in the middle, and the jacket is provided with a circulation pipe that communicates with the water tank in the jacket.

[0012] Compared with the prior art, the beneficial effects achieved by this utility model are as follows:

[0013] This invention features a cooling water channel on one of the fixed grinding discs, which directly cools the grinding disc. The heat conduction of the grinding disc effectively controls the temperature of the grinding chamber. During grinding, the grinding disc is relatively cool and therefore less prone to wear. When the material comes into contact with the grinding disc, it can also be cooled directly through contact, preventing the material from overheating and denaturing. This design facilitates direct cooling of the reaction chamber inside the colloid mill. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the low-temperature colloid mill provided in this embodiment of the utility model;

[0015] Figure 2 This is a side view of the low-temperature colloid mill provided in this embodiment of the present invention;

[0016] Figure 3 This is a utility model Figure 2 A cross-sectional view along the AA direction of the low-temperature colloid mill provided in the embodiment;

[0017] Figure 4 This is a front view of the low-temperature colloid mill provided in this embodiment of the present invention;

[0018] Figure 5 This is a utility model Figure 4 A cross-sectional view of the low-temperature colloid mill along the BB direction provided in the embodiment;

[0019] Figure 6This is a schematic diagram of the structure of the grinding disc provided in an embodiment of the present utility model;

[0020] Reference numerals in the attached drawings: 1. Machine base; 2. Mixing tank; 3. First grinding disc; 4. Motor; 5. Sealing cover; 6. Second grinding disc; 601. First annular passage; 602. Second annular passage; 603. Connecting passage; 7. Feed inlet; 8. Liquid inlet pipe; 9. Liquid outlet pipe; 10. Temperature sensor; 11. Discharge pipe; 12. Jacket; 13. Circulation pipe; 14. Guide rod. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0022] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships 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. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of 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.

[0024] Example:

[0025] This utility model provides a low-temperature colloid mill for cooling the grinding chamber of the colloid mill. The cooling effect acts directly on one of the grinding discs, utilizing the thermal conductivity of the grinding discs to directly lower the temperature of the cooling chamber at the grinding disc location. The heat conduction distance is short, resulting in good cooling effect. To achieve the structural function of the equipment, the device includes a machine base 1, a mixing tank 2 located above the machine base 1, and a sealing cover 5 sealed to the top of the mixing tank 2. To achieve the grinding and pulverizing of materials, a first grinding disc 3 is rotatably arranged inside the mixing tank 2. Figure 3 As shown, the side wall of the mixing tank 2 is connected to a discharge pipe 11. The machine base 1 is equipped with a motor 4 for driving the first grinding disc 3 to rotate at high speed. The second grinding disc 6, which is opposite to the first grinding disc 3, is fixedly mounted on the sealing cover 5. The positions of the first grinding disc 3 and the second grinding disc 6 are opposite to form a grinding chamber. The sealing cover 5 is also equipped with a feed inlet 7. The connecting passage of the feed inlet 7 passes through the middle of the second grinding disc 6 and is connected to the grinding chamber. When adding materials, the materials directly enter the grinding chamber through the feed inlet 7. In order to achieve efficient cooling of the grinding chamber, a coolant passage is provided inside the second grinding disc 6. An inlet pipe 8 and an outlet pipe 9 are respectively provided on the coolant passage of the second grinding disc 6. The inlet pipe 8 and the outlet pipe 9 are used to circulate and cool the coolant in the coolant passage, so as to avoid the coolant remaining in the second grinding disc 6 from heating up and causing a decrease in cooling effect. This cooling method allows the heat conduction of the second grinding disc 6 to directly cool the wall of the grinding chamber, which can efficiently cool the material. In addition, the low temperature of the second grinding disc 6 itself allows it to maintain good rigidity during continuous impact with the material, which helps reduce the wear of the grinding disc itself.

[0026] This utility model provides a low-temperature colloid mill, specifically offering a coolant flow method to uniformly cool the second grinding disc 6. Specifically, the coolant passage includes a first annular passage 601 and a second annular passage 602 disposed inside the second grinding disc 6. The diameters of the first and second annular passages 601 and 602 are different, and they are connected by several connecting passages 603. The inlet pipe 8 and outlet pipe 9 are directly connected to the corresponding first and second annular passages 601 and 602, respectively. After entering the second grinding disc 6 through the inlet pipe 8, the coolant flows through the corresponding annular passages and connecting passages 603 before exiting through the annular passages, thereby achieving uniform cooling of all parts of the second grinding disc 6 and ensuring high heat exchange efficiency of the coolant.

[0027] This utility model provides a low-temperature colloid mill. In some embodiments, the shape of the grinding disc can be referenced. Figure 6 As shown, the second grinding disc 6 has a narrow center and thicker sides. To ensure that the coolant passages are evenly distributed within the interior of the second grinding disc 6, specifically, the diameter of the second annular passage 602 can be set smaller than the diameter of the first annular passage 601, such as... Figure 3 As shown, the height of the second annular passage 602 is higher than that of the first annular passage 601. At this time, the inlet pipe 8 is connected to the first annular passage 601, and the outlet pipe 9 is connected to the second annular passage 602. With this arrangement, when the first grinding disc 3 and the second grinding disc 6 are facing each other, the second annular passage 602 can be located near the center, and the first annular passage 601 can be located near the grinding chamber. When the inlet pipe 8 is filled with liquid, because the first annular passage 601 is lower, the coolant will first fill the bottom of the first annular passage 601, and then fill the second annular passage 602 through several connecting passages 603, and finally flow out from the outlet pipe 9. That is, the coolant flow path is evenly distributed on the second grinding disc 6, and finally a good and stable cooling effect is achieved.

[0028] This utility model provides a low-temperature colloid mill. Considering the ease of installation of the inlet pipe 8 and outlet pipe 9, both can be mounted on the sealing cover 5. A second grinding disc 6 and the sealing cover 5 are sealed together, meaning the second grinding disc 6 has corresponding water inlets for connecting to the inlet pipe 8 and outlet pipe 9. To ensure that the corresponding water inlets of the second grinding disc 6 correspond to the positions of the inlet pipe 8 and outlet pipe 9 after installation and maintenance, several guide rods 14 are provided inside the sealing cover 5, and several guide holes that can slide with the guide rods 14 are provided on the side of the second grinding disc 6. The cooperation between the guide rods 14 and the guide holes achieves the positioning of the second grinding disc 6, ensuring that the position of the water inlets corresponds to the positions of the inlet pipe 8 and outlet pipe 9 on the sealing cover 5.

[0029] This utility model provides a low-temperature colloid mill. In order to facilitate the detection of the temperature inside the grinding chamber, and to reasonably control the flow rate of cooling water or analyze the temperature anomalies inside the grinding chamber, a temperature sensor 10 for detecting the temperature of the second grinding disc 6 can be provided on the sealing cover 5. Through relevant temperature analysis, the operating status of the equipment can be reasonably adjusted.

[0030] This utility model provides a low-temperature colloid mill. To further improve the cooling effect of the equipment, the side wall of the mixing tank 2 can be configured as a jacket 12 with a water tank in the middle. The jacket 12 is provided with a circulation pipe 13 connected to the water tank of the jacket 12. The circulation pipe 13 is used to replace the coolant in the jacket 12, thereby indirectly and further reducing the material temperature in the mixing tank 2 and improving the overall cooling effect of the equipment.

[0031] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A low-temperature colloid mill, characterized in that, The equipment includes a machine base (1), a mixing tank (2) located above the machine base (1), and a sealing cover (5) that is sealed to the top of the mixing tank (2). A first grinding disc (3) is rotatably installed inside the mixing tank (2). A discharge pipe (11) is connected to the side wall of the mixing tank (2). A motor (4) for driving the first grinding disc (3) to rotate is installed inside the machine base (1). A second grinding disc (6) is fixedly installed on the sealing cover (5). The positions of the first grinding disc (3) and the second grinding disc (6) are opposite to form a grinding chamber. A feed inlet (7) is also installed on the sealing cover (5). The connecting passage of the feed inlet (7) passes through the middle of the second grinding disc (6) and is connected to the grinding chamber. A coolant passage is provided inside the second grinding disc (6). An inlet pipe (8) and an outlet pipe (9) are respectively provided on the coolant passage of the second grinding disc (6).

2. The low-temperature colloid mill according to claim 1, characterized in that, The coolant passage includes a first annular passage (601) and a second annular passage (602) disposed inside the second grinding disc (6). The diameters of the first annular passage (601) and the second annular passage (602) are different. The first annular passage (601) and the second annular passage (602) are connected by several connecting passages (603). The inlet pipe (8) and the outlet pipe (9) are directly connected to the corresponding first annular passage (601) and second annular passage (602), respectively.

3. The low-temperature colloid mill according to claim 2, characterized in that, The diameter of the second annular passage (602) is smaller than the diameter of the first annular passage (601), the height of the second annular passage (602) is higher than the height of the first annular passage (601), the inlet pipe (8) is connected to the first annular passage (601), and the outlet pipe (9) is connected to the second annular passage (602).

4. A low-temperature colloid mill according to claim 3, characterized in that, The inlet pipe (8) and the outlet pipe (9) are both installed on the sealing cover (5), and the second grinding disc (6) and the sealing cover (5) are sealed together.

5. A low-temperature colloid mill according to claim 4, characterized in that, The sealing cover (5) is provided with several guide rods (14) inside, and the side of the second grinding disc (6) is provided with several guide holes that can slide with the guide rods (14).

6. A low-temperature colloid mill according to claim 4, characterized in that, The sealing cover (5) is equipped with a temperature sensor (10) for detecting the temperature of the second grinding disc (6).

7. A low-temperature colloid mill according to claim 1, characterized in that, The side wall of the mixing tank (2) is formed by a jacket (12) with a water tank in the middle, and a circulation pipe (13) connected to the water tank of the jacket (12) is provided on the jacket (12).

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