Cooling mechanism of horizontal rod pin sand mill

Abstract

The utility model relates to the technical field of sand mill cooling, in particular to a cooling mechanism of a horizontal rod pin sand mill. According to the technical scheme, the device comprises a barrel, a water pump and a water tank, the outer surface of the barrel is fixedly sleeved with a sleeve, a water inlet pipe and a water return pipe are fixedly connected to the two sides of the lower surface of the sleeve respectively, the tail end of the water inlet pipe is fixedly connected with the output end of the water pump, and the input end of the water pump is fixedly connected with a connecting pipe; and the tail end of the filter and the tail end of the water return pipe are fixedly connected to the positions, close to the lower surface, of the two sides of the outer surface of the water tank correspondingly, and a refrigerator, a PLC and a frequency converter are fixedly installed on the upper surface of the water tank. According to the utility model, water cooling can be carried out on the barrel of the horizontal type rod pin sand mill, adverse effects on ground materials caused by temperature rise in the barrel are avoided, and temperature regulation and energy conservation can be automatically carried out, so that the energy consumption is reduced.

Description

Technical Field

[0001] This utility model relates to the field of sand mill cooling technology, specifically a cooling mechanism for a horizontal rod pin sand mill. Background Technology

[0002] The horizontal pin mill is a commonly used particle crushing equipment, mainly used for coarse and fine grinding of various materials. Its basic principle is to use the high-speed rotation of pins and grinding media to grind materials to the required particle size through impact and shearing.

[0003] Currently, during the operation of horizontal rod pin sand mills, a large amount of heat is generated inside the cylinder due to friction, causing the internal temperature of the cylinder to rise, which adversely affects the material being ground. To address this, we propose a cooling mechanism for horizontal rod pin sand mills. Utility Model Content

[0004] The purpose of this utility model is to provide a cooling mechanism for a horizontal rod pin sand mill, which can water-cool the cylinder of the horizontal rod pin sand mill to prevent the internal temperature of the cylinder from rising and causing adverse effects on the grinding materials. It can also automatically regulate the temperature and air volume, which is beneficial to saving energy consumption. This solves the problem that during the operation of current horizontal rod pin sand mills, a large amount of heat is generated inside the cylinder due to friction, which causes the internal temperature of the cylinder to rise and thus adversely affects the grinding materials.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cooling mechanism for a horizontal rod pin sand mill, comprising a cylinder, a water pump, and a water tank. A sleeve is fixedly fitted onto the outer surface of the cylinder. An inlet pipe and a return pipe are fixedly connected to both sides of the lower surface of the sleeve, respectively. The end of the inlet pipe is fixedly connected to the output end of the water pump. A connecting pipe is fixedly connected to the input end of the water pump, and a filter is fixedly connected to the end of the connecting pipe. The filter and the end of the return pipe are fixedly connected to both sides of the outer surface of the water tank near the lower surface. A cooler, a PLC, and a frequency converter are fixedly installed on the upper surface of the water tank. A first temperature sensor is fixedly installed on one side of the outer surface of the cylinder, and a second temperature sensor is fixedly installed on the outer surface of the connecting pipe.

[0006] Preferably, the first temperature sensor, the second temperature sensor, and the frequency converter are all electrically connected to the PLC, and the chiller and the water pump are all electrically connected to the frequency converter.

[0007] Preferably, the inner wall of the sleeve is welded with a spiral blade, and the spiral blade is spirally wound around the outer surface of the cylinder.

[0008] Preferably, a refrigeration pipe is fixedly connected to the output end of the refrigeration unit, the end of the refrigeration pipe is fixedly connected to the input end of the refrigeration unit, and the refrigeration pipe is located inside the water tank.

[0009] Preferably, a partition is fixedly installed in the middle of the interior of the water tank.

[0010] Preferably, a transparent curved pipe is fixedly connected to the outer surface of the water tank near the lower surface, and a water supply valve is fixedly connected to the end of the transparent curved pipe.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model, by setting up a cylinder, sleeve, water pump, water tank, chiller, PLC, frequency converter, first temperature sensor and second temperature sensor, achieves water cooling of the cylinder of a horizontal rod mill, preventing the internal temperature of the cylinder from rising and adversely affecting the grinding materials. It also enables automatic temperature and air regulation, which helps save energy. The water pump delivers cooling water from the water tank to the sleeve, where it contacts the outer surface of the cylinder. As the cooling water flows on the outer surface of the cylinder, it carries away the heat of the cylinder. The heated cooling water flows back to the water tank through the return pipe, is cooled by the chiller, and is then recycled. The first temperature sensor can detect the temperature inside the cylinder, and the second temperature sensor monitors the temperature of the water entering the water pump. Both temperature signals are transmitted to the PLC. The PLC sends control signals to the frequency converter based on the temperature signals, and the frequency converter controls the operating frequency of the water pump and the chiller based on the control signals to control the flow rate of cooling water inside the sleeve, so that the temperature inside the cylinder reaches the set range, while simultaneously controlling the temperature of the cooling water entering the water pump.

[0013] 2. By setting spiral blades, this utility model can form a spiral cooling water flow channel between the sleeve and the cylinder, extending the flow path of the cooling water on the outer surface of the cylinder, so that the cooling water and the outer surface of the cylinder can fully contact each other and remove more heat from the cylinder.

[0014] 3. By setting a partition, the water tank is divided into two connected chambers. The cooling pipe is located in one of the chambers. The cooling water returning from the return pipe is cooled by the cooling pipe, and after passing over the partition, it enters the other chamber and then enters the water pump. This can prevent the cooling water returning to the water tank from flowing over a large area inside the water tank, which would cause large fluctuations in the temperature of the cooling water entering the water pump. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a partial three-dimensional structural diagram of the cylindrical body of this utility model;

[0017] Figure 3This is a partial three-dimensional structural diagram of the water pump of this utility model;

[0018] Figure 4 This is a partial three-dimensional structural diagram of the water tank of this utility model.

[0019] Reference numerals in the attached drawings: 1. Sleeve; 2. Cylinder; 3. Water pump; 4. Water tank; 5. First temperature sensor; 6. Spiral blade; 7. Inlet pipe; 8. Connecting pipe; 9. Second temperature sensor; 10. Filter; 11. Refrigerator; 12. Frequency converter; 13. PLC; 14. Water supply valve; 15. Transparent bend; 16. Partition plate; 17. Refrigeration pipe; 18. Return pipe. Detailed Implementation

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] Example 1

[0022] like Figures 1-4 As shown, the present invention proposes a cooling mechanism for a horizontal rod pin sand mill, comprising a cylinder 2, a water pump 3, and a water tank 4. A sleeve 1 is fixedly fitted onto the outer surface of the cylinder 2, forming a chamber for cooling water flow between the inner wall of the sleeve 1 and the outer surface of the cylinder 2. An inlet pipe 7 and a return pipe 18 are fixedly connected to both sides of the lower surface of the sleeve 1, respectively. The end of the inlet pipe 7 is fixedly connected to the output end of the water pump 3, and a connecting pipe 8 is fixedly connected to the input end of the water pump 3. A filter 10 is fixedly connected to the end of the connecting pipe 8. The filter 10 filters out impurities in the cooling water to avoid scaling on the inner wall of the pipe and the outer surface of the cylinder 2, which would cause blockage. The ends of the filter 10 and the return pipe 18 are fixedly connected to both sides of the outer surface of the water tank 4 near the lower surface.

[0023] A cooler 11, a PLC 13, and a frequency converter 12 are fixedly installed on the upper surface of the water tank 4. Both the water pump 3 and the cooler 11 are frequency converters. A cooling pipe 17 is fixedly connected to the output end of the cooler 11. The end of the cooling pipe 17 is fixedly connected to the input end of the cooler 11, and the cooling pipe 17 is located inside the water tank 4. The cooler 11 allows the refrigerant to flow inside the cooling pipe 17 and removes the heat from the cooling water inside the water tank 4, so that the cooling water can be recycled. A first temperature sensor 5 is fixedly installed on one side of the outer surface of the cylinder 2. The temperature probe of the first temperature sensor 5 is located inside the cylinder 2. A second temperature sensor 9 is fixedly installed on the outer surface of the connecting pipe 8. The temperature probe of the second temperature sensor 9 is located inside the connecting pipe 8. The first temperature sensor 5, the second temperature sensor 9, and the frequency converter 12 are all electrically connected to the PLC 13. The cooler 11 and the water pump 3 are all electrically connected to the frequency converter 12. There are two frequency converters 12, which control the operating frequency of the cooler 11 and the water pump 3 respectively.

[0024] In use, the water pump 3 delivers cooling water from the water tank 4 to the sleeve 1, where it contacts the outer surface of the cylinder 2. As the cooling water flows over the outer surface of the cylinder 2, it carries away the heat from the cylinder 2. The heated cooling water then flows back to the water tank 4 through the return pipe 18 and is cooled by the cooler 11 before being recycled. The first temperature sensor 5 detects the temperature inside the cylinder 2, and the second temperature sensor 9 monitors the temperature of the water entering the water pump 3. Both temperature signals are transmitted to the PLC 13, which sends a control signal to the frequency converter 12 based on the temperature signals. The frequency converter 12 then controls the operating frequency of the water pump 3 and the cooler 11 based on the control signals to control the flow rate of the cooling water inside the sleeve 1, ensuring that the temperature inside the cylinder 2 reaches the set range, while simultaneously controlling the temperature of the cooling water entering the water pump 3.

[0025] Example 2

[0026] like Figure 1 , Figure 2 and Figure 4 As shown, the cooling mechanism of the horizontal rod pin sand mill proposed in this utility model, compared with the first embodiment, further includes a spiral blade 6 welded to the inner wall of the sleeve 1, and the spiral blade 6 spirally wound around the outer surface of the cylinder 2. A transparent bent pipe 15 is fixedly connected to the outer surface of the water tank 4 near the lower surface, and a water supply valve 14 is fixedly connected to the end of the transparent bent pipe 15. The water supply valve 14 is located above the water tank 4. The water level inside the water tank 4 can be observed through the transparent bent pipe 15 so that water can be supplied to the water tank 4 through the water supply valve 14.

[0027] In this embodiment, the spiral blade 6 can form a spiral cooling water flow channel between the sleeve 1 and the cylinder 2, extending the flow path of the cooling water on the outer surface of the cylinder 2, so that the cooling water and the outer surface of the cylinder 2 can fully contact each other to remove more heat from the cylinder 2.

[0028] Example 3

[0029] like Figure 1 and Figure 4 As shown, the cooling mechanism of the horizontal rod pin sand mill proposed in this utility model, compared with the first embodiment, further includes a partition 16 fixedly installed in the middle position inside the water tank 4. The partition 16 divides the inside of the water tank 4 into two chambers, and the cooling pipe 17 is located in one of the chambers near the return water pipe 18. A gap for cooling water to circulate is provided between the top of the partition 16 and the top of the inner wall of the water tank 4 so that the two chambers can communicate with each other.

[0030] In this embodiment, the cooling water returning from the return pipe 18 is cooled by the refrigeration pipe 17, and after passing over the partition 16, it enters another chamber and then enters the water pump 3. This can prevent the cooling water returning into the water tank 4 from flowing over a large area inside the water tank 4, which would cause large fluctuations in the temperature of the cooling water entering the water pump 3.

[0031] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A cooling mechanism of a horizontal pin bar sand mill, comprising a cylinder (2), a water pump (3) and a water tank (4), characterized in that: The outer surface of the barrel (2) is fixedly sleeved with a sleeve (1), the lower surface of the sleeve (1) is fixedly connected with a water inlet pipe (7) and a water return pipe (18) on both sides, respectively, the water inlet pipe (7) is fixedly connected with the output end of a water pump (3), the input end of the water pump (3) is fixedly connected with a connecting pipe (8), the connecting pipe (8) is fixedly connected with a filter (10) at the end, the filter (10) and the water return pipe (18) are fixedly connected to the outer surface of a water tank (4) on both sides near the lower surface, respectively, the upper surface of the water tank (4) is fixedly installed with a refrigeration device (11), a PLC (13) and a frequency converter (12), one side of the outer surface of the barrel (2) is fixedly installed with a first temperature sensor (5), the outer surface of the connecting pipe (8) is fixedly installed with a second temperature sensor (9).

2. A cooling mechanism for a horizontal pin mill according to claim 1, characterized in that: The first temperature sensor (5), the second temperature sensor (9) and the frequency converter (12) are electrically connected with the PLC (13), and the refrigeration device (11) and the water pump (3) are electrically connected with the frequency converter (12).

3. The cooling mechanism of a horizontal pin mill according to claim 1, characterized in that: The inner wall of the sleeve (1) is welded with a spiral fin (6), and the spiral fin (6) is spirally wound on the outer surface of the barrel (2).

4. The cooling mechanism of a horizontal pin mill according to claim 1, characterized in that: The output end of the refrigeration device (11) is fixedly connected with a refrigeration pipe (17), the refrigeration pipe (17) is fixedly connected with the input end of the refrigeration device (11) at the end, and the refrigeration pipe (17) is located inside the water tank (4).

5. A cooling mechanism for a horizontal pin mill as claimed in claim 4, wherein: A partition plate (16) is fixedly installed at the middle position inside the water tank (4).

6. The cooling mechanism of a horizontal pin mill according to claim 1, characterized in that: The outer surface of the water tank (4) is fixedly connected with a transparent elbow pipe (15) near the lower surface, and the transparent elbow pipe (15) is fixedly connected with a water replenishing valve (14) at the end.

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