Cyclic utilization device for cooling water of open mill

Abstract

The utility model relates to the technical field of rubber material processing, in particular to a cyclic utilization device for cooling water of an open mill, which comprises a rack, a main motor mounted on the rack, a water storage tank arranged below the rack, a pair of extrusion devices arranged on the rack and used for extruding rubber materials, the liquid inlet device comprises a liquid inlet butt joint pipe concentrically fixed in the main rotating shaft, and the liquid inlet butt joint pipe is used for being connected with a water storage tank. The liquid discharging device comprises a liquid discharging butt-joint pipe concentrically fixed in the main rotating shaft, and the liquid discharging butt-joint pipe is used for being connected with a water storage tank. According to the device, the interior of the roller can be divided into a plurality of arc-shaped cooling cavities, then each arc-shaped cooling cavity is subjected to short-path rapid cooling, and the uniform and uninterrupted cooling effect on the roller is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber material processing, in particular to a circulating utilization device for cooling water of a mixing mill. Background Art

[0002] An open mixing mill, also known as an open rubber mixing mill, is used to mix rubber. It generally consists of two rollers and a frame. During operation, the rubber compound gradually heats up under the pressure of the rollers. If the temperature of the compound is too high, it will affect its quality. Therefore, cooling water is required to cool the compound during operation.

[0003] The utility model, publication number CN212241686U, provides a highly efficient heat dissipation mechanism for a tire material production mill. This mechanism utilizes circulating cooling water to cool the rubber rollers, thereby reducing the temperature of the rubber. However, this device directly fills the rollers with cooling water during the cooling process, which can lead to the following issues that affect the cooling effect:

[0004] 1. If the cooling water fails to fill the inside of the roller, the cooling water can only cool the bottom of the roller, resulting in inconsistent temperatures between the upper and lower parts of the roller when the roller rotates at low speed;

[0005] 2. If the cooling water can fill the inside of the roller, but turbulence occurs due to the lack of flow diversion design inside the roller, the low-temperature cooling water is easily sent out of the roller without exchanging heat with the inner wall of the roller, thus affecting the heat exchange efficiency;

[0006] 3. The path of cooling water passing through the inside of the roller is too long. During the continuous heat exchange process, the cooling water will continue to heat up, which will cause the cooling effect to become worse and worse, resulting in temperature differences in different areas of the path, resulting in uneven cooling of the rubber compound.

[0007] Therefore, it is difficult to meet the existing cooling needs. In view of this, the present application provides a recycling device for cooling water of a mixing mill with more uniform cooling and higher cooling efficiency. Utility Model Content

[0008] The utility model provides the following technical solution: a circulating utilization device for cooling water of a mixing mill, comprising:

[0009] A frame, wherein a main motor is mounted on the frame and a water tank is provided below the frame;

[0010] An extrusion device, wherein a pair of extrusion devices for extruding the rubber material is provided on the frame, and the extrusion device includes a main rotating shaft rotatably mounted on the frame, and a roller for extruding the rubber material is installed in the middle of the main rotating shaft, the output end of the main motor drives the main rotating shaft to rotate through a belt, and at least four rows of arc-shaped cooling cavities arranged in a linear array along the axial direction of the roller are provided in the main rotating shaft, and each row of the arc-shaped cooling cavity array includes at least four arc-shaped cooling cavities;

[0011] A liquid inlet device, comprising a liquid inlet butt joint concentrically fixed within the main shaft, the liquid inlet butt joint being connected to a liquid inlet pipe via a rotary joint, and the liquid inlet pipe being connected to the front end of the water storage tank via a liquid inlet pump body;

[0012] The drainage device includes a drainage butt joint fixed concentrically in the main shaft, and the drainage butt joint is connected to the drainage pipe through a rotary joint, and the drainage pipe is connected to the rear end of the water tank.

[0013] Preferably, a main gear is fixedly mounted on the main rotating shaft, and the main gears on the two main rotating shafts are meshed with each other.

[0014] Preferably, a vacuum chamber is provided in the main shaft, and at least four liquid inlet diversion pipes and at least four liquid discharge diversion pipes are provided in the vacuum chamber, all of the liquid inlet diversion pipes are connected to the liquid inlet butt joint pipe through the liquid inlet connecting pipe, and all of the liquid discharge diversion pipes are connected to the liquid discharge butt joint pipe through the liquid discharge connecting pipe, and the two ends of the arc-shaped cooling chamber are connected to the liquid inlet butt joint pipe and the liquid discharge butt joint pipe through the liquid inlet diversion pipe and the liquid discharge diversion pipe respectively.

[0015] Preferably, cooling fins for cooling the cooling water in the water tank are installed on the water tank, and a heat-conducting metal mesh connected to the cooling fins is provided in the water tank.

[0016] Preferably, a plate heat exchanger, an air intake pump body and an air filter are fixedly mounted on the frame, the liquid inlet end of the plate heat exchanger is connected to the drain pipe, and the liquid outlet end of the plate heat exchanger is connected to the rear end of the water tank, the air intake end of the air intake pump body is connected to the air filter, and the gas inlet end of the plate heat exchanger is connected to the gas outlet end of the air intake pump body.

[0017] Preferably, the main rotating shaft drives the air intake pump body to work through a belt, and the main rotating shaft drives the liquid intake pump body to work through a belt.

[0018] Preferably, the air filter is provided with a primary filter for filtering dust in the air, and an activated carbon adsorption filler for adsorbing dust is provided between the primary filter and the gas outlet end of the air filter.

[0019] Compared with the prior art, the beneficial effects of the circulating utilization device for cooling water of a mixing mill provided by the utility model are:

[0020] 1. The utility model divides the interior of the drum into multiple arc-shaped cooling chambers, and then quickly cools each arc-shaped cooling chamber in a short path, thereby achieving a uniform and uninterrupted cooling effect on the drum;

[0021] 2. The utility model can prevent impurities in the outside air from entering the cooling water and affecting the heat exchange efficiency by enclosing the cooling water in a sealed circulation loop, and also avoid the loss caused by evaporation of cooling water;

[0022] 3. The utility model isolates the liquid inlet shunt pipe and the liquid discharge shunt pipe through the vacuum chamber, thereby avoiding heat exchange between cooling water of different temperatures, thereby further improving the cooling effect;

[0023] 4. The utility model can directly and synchronously adjust the working states of the main shaft, the air intake pump body and the liquid intake pump body by adjusting the rotation speed of the main motor, thereby adapting to different rubber mixing needs, and is therefore more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of the utility model;

[0025] Figure 2 This is a side view of the structure of the utility model;

[0026] Figure 3 This is a schematic structural diagram of the extrusion device of the utility model;

[0027] Figure 4 This is a transverse cross-sectional view of the extrusion device of the utility model;

[0028] Figure 5 It is a longitudinal sectional view of the extrusion device of the utility model.

[0029] In the figure: 1. Frame; 2. Extrusion device; 201. Arc-shaped cooling chamber; 202. Roller; 203. Main gear; 204. Main rotating shaft; 205. Vacuum chamber; 3. Liquid inlet device; 301. Liquid inlet diverter pipe; 302. Liquid inlet connecting pipe; 303. Liquid inlet butt joint; 4. Liquid discharge device; 401. Liquid discharge diverter pipe; 402. Liquid discharge connecting pipe; 403. Liquid discharge butt joint; 5. Liquid discharge pipe; 6. Air intake pump body; 7. Plate heat exchanger; 8. Air filter; 9. Water tank; 10. Cooling fins; 11. Main motor; 12. Liquid inlet pump body; 13. Liquid inlet pipe; 14. Rotary joint. DETAILED DESCRIPTION

[0030] In order to clearly and completely describe the purpose and technical solution of the present invention and to more clearly and clearly explain its advantages, the following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all the embodiments, and are only used to explain the embodiments of the present invention and are not intended to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] Example 1: Please refer to Figure 1 and Figure 2 The utility model provides a recycling device for cooling water of an open mill, comprising a frame 1, an extrusion device 2, a liquid inlet device 3 and a liquid discharge device 4. A main motor 11 is installed on the frame 1, and a water tank 9 is provided under the frame 1. Cooling fins 10 for cooling the cooling water in the water tank 9 are installed on the water tank 9, and a heat-conducting metal mesh connected to the cooling fins 10 is provided in the water tank 9. The heat-conducting metal mesh can also be replaced by a heat-conducting metal wire, which is used to transfer the heat in the cooling water in the water tank 9 to the cooling fins 10, and then the cooling fins 10 exchange heat with the external air, thereby achieving the purpose of cooling the cooling water in the water tank 9. The heat-conducting metal mesh and the heat-conducting metal wire will not prevent the normal flow of the cooling water in the water tank 9. The water tank 9 is used to store cooling water and cool the cooling water through the cooling fins 10.

[0032] See also Figures 1 to 5 A pair of extrusion devices 2 for extruding the rubber material are mounted on the frame 1. The extrusion devices 2 include a main shaft 204 rotatably mounted on the frame 1, and a roller 202 for extruding the rubber material is mounted in the middle of the main shaft 204. The output end of the main motor 11 drives the main shaft 204 to rotate via a belt. The two rollers 202 are used to clamp the rubber material and rotate and extrude it, thereby performing the rubber mixing operation. At least four circles of arc-shaped cooling cavities 201 are arranged along the axial direction of the rollers 202 within the main shaft 204, and each circle of arc-shaped cooling cavities 201 includes at least four arc-shaped cooling cavities 201. Cooling water is injected into the arc-shaped cooling cavities 201 to cool the corresponding areas on the rollers 202. A main gear 203 is fixedly mounted on the main rotating shaft 204, and the main gears 203 on the two main rotating shafts 204 are meshed with each other. In this way, the main motor 11 only needs to drive one of the main rotating shafts 204 to rotate through a belt, and the other main rotating shaft 204 can rotate synchronously driven by the main gear 203, so that the two main rotating shafts 204 can drive the corresponding rollers 202 to perform rubber mixing operations.

[0033] The liquid inlet device 3 includes a liquid inlet butt joint 303 concentrically fixed in the main rotating shaft 204, and the liquid inlet butt joint 303 is connected to the liquid inlet pipe 13 through a rotary joint 14, and the liquid inlet pipe 13 is connected to the front end of the water storage tank 9 through the liquid inlet pump body 12. The liquid discharge device 4 includes a liquid discharge butt joint 403 concentrically fixed in the main rotating shaft 204, and the liquid discharge butt joint 403 is connected to the liquid discharge pipe 5 through a rotary joint 14, and the liquid discharge pipe 5 is connected to the rear end of the water storage tank 9.

[0034] In this embodiment, the main motor 11 can drive the two extrusion devices 2 to extrude the rubber material to refine the rubber, and in this process, the cooling water in the water storage tank 9 is pumped out by the liquid inlet pump body 12 and sent to each arc-shaped cooling cavity 201 through the liquid inlet butt joint 303, so that the cooling water can cool the corresponding area on the roller 202 through the arc-shaped cooling cavity. In this way, it can be ensured that all parts of the roller 202 can be cooled by the cooling water at any time. At the same time, since the cooling water has a short travel in the arc-shaped cooling cavity 201, it will not produce a significant temperature difference on the surface of the roller 202, which can effectively Eliminating the influence of the surface temperature difference of the roller 202 on the rubber mixing process, and adopting the arc-shaped cooling cavity 201 to divide the cooling area, can make the contact between the cooling water and the roller 202 more complete, eliminate the dead angle of water flow, and thus obtain higher cooling efficiency. Moreover, after the cooling water returns to the water storage tank 9, it can also be pumped out by the liquid inlet pump body 12 for recycling, thereby saving the consumption of cooling water. Moreover, the cooling water is in a closed state during the circulation process, and will not be consumed due to evaporation, nor will it directly contact with the air and mix with impurities that affect the heat exchange efficiency. Therefore, it can ensure the cooling effect and is easier to maintain.

[0035] Example 2: Please refer to Figure 4 On the basis of the first embodiment, a vacuum chamber 205 is provided in the main shaft 204, and at least four liquid inlet shunt pipes 301 and at least four liquid discharge shunt pipes 401 are provided in the vacuum chamber 205. All liquid inlet shunt pipes 301 are connected to the liquid inlet butt joint pipe 303 through the liquid inlet connecting pipe 302, and all liquid discharge shunt pipes 401 are connected to the liquid discharge butt joint pipe 403 through the liquid discharge connecting pipe 402. The two ends of the arc-shaped cooling chamber 201 are connected to the liquid inlet shunt pipe 301 and the liquid discharge shunt pipe 401 respectively. The liquid butt joint pipe 303 and the liquid discharge butt joint pipe 403, the liquid inlet manifold 301, and the liquid discharge manifold 401 do not contact each other, and both the liquid inlet manifold 301 and the liquid discharge manifold 401 are disposed within the vacuum chamber 205. This effectively prevents direct heat exchange between the cooling water within the liquid inlet manifold 301 and the cooling water within the liquid discharge manifold 401 through heat conduction and convection, thereby maintaining a stable temperature of the cooling water within the liquid inlet manifold 301 and improving cooling efficiency. This further solves the problems of low cooling efficiency and uneven cooling in existing rubber mixing mill cooling modules, thereby improving the rubber mixing quality of the open mixing mill.

[0036] Example 3: Please refer to Figure 1 and Figure 2 On the basis of the second embodiment, a plate heat exchanger 7, an air intake pump body 6 and an air filter 8 are fixedly mounted on the frame 1. A primary filter for filtering dust in the air is mounted on the air filter 8, and an activated carbon adsorption filler for adsorbing dust is provided between the primary filter and the gas outlet end of the air filter 8, so that clean air after purification can be effectively obtained by using the air filter 8. The liquid inlet end of the plate heat exchanger 7 is connected to the drain pipe 5, and the liquid outlet end of the plate heat exchanger 7 is connected to the rear end of the water tank 9, the air inlet end of the air intake pump body 6 is connected to the air filter 8, and the gas inlet end of the plate heat exchanger 7 is connected to the air outlet end of the air intake pump body 6. The cooling water discharged from the drain diverter pipe 401 will be sent into the plate heat exchanger 7, and the air intake pump body 6 will send the clean air filtered by the air filter 8 into the plate heat exchanger 7, so that the cooling water and the clean air in the plate heat exchanger 7 exchange heat with each other, thereby cooling the cooling water. The cooled cooling water will be sent to the water tank 9 for further cooling through the cooling fins 10, and the clean air after heating in the plate heat exchanger 7 will be directly discharged into the air. The main rotating shaft 204 drives the air intake pump body 6 to work via a belt, and the main rotating shaft 204 drives the liquid intake pump body 12 to work via a belt. In this way, the operating state of the air intake pump body 6 and the liquid intake pump body 12 can be synchronously adjusted by utilizing the speed of the main rotating shaft 204. In this way, the operating state of the main rotating shaft 204, the air intake pump body 6 and the liquid intake pump body 12 can be simultaneously adjusted by adjusting the speed of the main motor 11. When the main rotating shaft 204 rotates faster so that the rubber material generates more heat, the liquid intake pump body 12 will also synchronously provide more cooling water to maintain the stability of the rubber material temperature. At the same time, the air intake pump body 6 will also provide more clean air to cool the cooling water, thereby ensuring the cooling effect. In this way, when different rubber materials are mixed at different speeds of the drum 202, only the speed of the main motor 11 needs to be adjusted, so it is more convenient to use.

[0037] Although the above describes the illustrative specific implementation methods of the present application so that those skilled in the art can understand the present application, the present application is not limited to the scope of the specific implementation methods. For those of ordinary skill in the art, as long as various changes are within the spirit and scope of the present application defined and determined by the attached claims, all application creations based on the concept of the present application are protected.

Claims

1. A recycling device for cooling water of a mixing mill, characterized in that: include: A frame (1), a main motor (11) is mounted on the frame (1), and a water storage tank (9) is provided below the frame (1); An extrusion device (2), wherein a pair of extrusion devices (2) for extruding rubber are provided on the frame (1), and the extrusion device (2) comprises a main rotating shaft (204) rotatably mounted on the frame (1), and a roller (202) for extruding rubber is installed in the middle of the main rotating shaft (204), the output end of the main motor (11) drives the main rotating shaft (204) to rotate via a belt, and at least four rows of arc-shaped cooling cavities (201) arranged in a linear array are provided in the main rotating shaft (204) along the axial direction of the roller (202), and each row of the arc-shaped cooling cavities (201) array comprises at least four arc-shaped cooling cavities (201); A liquid inlet device (3), the liquid inlet device (3) comprising a liquid inlet butt joint (303) concentrically fixed within the main rotating shaft (204), the liquid inlet butt joint (303) being connected to a liquid inlet pipe (13) via a rotary joint (14), the liquid inlet pipe (13) being connected to the front end of a water storage tank (9) via a liquid inlet pump body (12); A liquid discharge device (4) includes a liquid discharge butt joint (403) concentrically fixed within the main rotating shaft (204), and the liquid discharge butt joint (403) is connected to a liquid discharge pipe (5) via a rotary joint (14), and the liquid discharge pipe (5) is connected to the rear end of the water storage tank (9).

2. The device for recycling cooling water of a mixing mill according to claim 1, wherein: A main gear (203) is fixedly mounted on the main rotating shaft (204), and the main gears (203) on the two main rotating shafts (204) are meshed with each other.

3. The device for recycling cooling water of a mixing mill according to claim 1, wherein: A vacuum chamber (205) is provided in the main rotating shaft (204), and at least four liquid inlet shunt pipes (301) and at least four liquid discharge shunt pipes (401) are provided in the vacuum chamber (205). All the liquid inlet shunt pipes (301) are connected to the liquid inlet butt joint pipe (303) via a liquid inlet connecting pipe (302), and all the liquid discharge shunt pipes (401) are connected to the liquid discharge butt joint pipe (403) via a liquid discharge connecting pipe (402). Both ends of the arc-shaped cooling chamber (201) are connected to the liquid inlet butt joint pipe (303) and the liquid discharge butt joint pipe (403) via the liquid inlet shunt pipe (301) and the liquid discharge shunt pipe (401), respectively.

4. The device for recycling cooling water of a mixing mill according to claim 1, wherein: The water tank (9) is provided with cooling fins (10) for cooling the cooling water in the water tank (9), and a heat-conducting metal mesh connected to the cooling fins (10) is provided in the water tank (9).

5. The device for recycling cooling water of a mixing mill according to claim 1, wherein: A plate heat exchanger (7), an air intake pump body (6) and an air filter (8) are fixedly mounted on the frame (1); the liquid inlet end of the plate heat exchanger (7) is in communication with the liquid discharge pipe (5), and the liquid outlet end of the plate heat exchanger (7) is in communication with the rear end of the water storage tank (9); the air inlet end of the air intake pump body (6) is in communication with the air filter (8), and the gas inlet end of the plate heat exchanger (7) is in communication with the gas outlet end of the air intake pump body (6).

6. The device for recycling cooling water of a mixing mill according to claim 5, characterized in that: The main rotating shaft (204) drives the air inlet pump body (6) to work via a belt, and the main rotating shaft (204) drives the liquid inlet pump body (12) to work via a belt.

7. The device for recycling cooling water of a mixing mill according to claim 5, characterized in that: The air filter (8) is provided with a primary filter screen for filtering dust in the air, and an activated carbon adsorption filler for adsorbing dust is provided between the primary filter screen and the gas outlet end of the air filter (8).

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