Discharging heat dissipation device for mill sliding shoe

Abstract

The utility model discloses an external heat dissipation device for a mill slide shoe, which comprises a slide shoe body which is arranged at the end part of a barrel along the circumferential direction of the barrel of the mill and is assembled with a slide shoe in a sliding manner, and a slide shoe cover communicated with an inner cavity of the slide shoe is arranged outside the slide shoe body in a covering manner. The sliding shoe cover is provided with an exhaust fan which is communicated with an inner cavity of the sliding shoe cover and is used for exhausting hot air in the sliding shoe and the inner cavity of the sliding shoe cover, and the controlled end of the exhaust fan is connected with a PLC (Programmable Logic Controller); two air inlets are symmetrically formed in the sliding shoe tile, and heat exchange pipes used for exchanging heat with inlet air sucked by the exhaust fan so as to reduce the temperature of the inlet air are arranged on the air inlets. According to the utility model, hot air in the inner cavities of the slipper tile and the slipper cover can be pumped out through the exhaust fan; heat exchange can be performed on inlet air sucked by the exhaust fan through the arranged heat exchange pipe, so that the inlet air temperature is reduced; external heat dissipation of the slipper can be integrally achieved, the temperature of the slipper is reduced, then the situation that a mill stops due to the fact that the temperature of the slipper is too high is avoided, and normal operation of equipment is effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of cement mill equipment, in particular to an external heat dissipation device for a mill sliding shoe. Background Art

[0002] Large rotary drums such as cement mills are currently generally supported by sliding shoes. Because the temperature of cement in the mill is as high as 130°C, a lot of heat will be transferred to the sliding shoes. At the same time, the sliding shoes and sliding shoes will also generate heat due to friction during the operation of the equipment, which can easily cause the sliding shoe temperature to rise. When the temperature exceeds the protection value, it will cause the mill to stop, especially in the high temperature environment in summer, which will seriously affect the normal production of the mill. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an external heat dissipation device for a grinding machine slide shoe to solve the problem raised in the background technology.

[0004] In order to solve the above technical problems, the technical solutions adopted by the present utility model are as follows.

[0005] An external heat dissipation device for a mill slide comprises a slide body which is arranged at the end of the cylinder along the circumference of the cylinder of the mill and is slidably assembled with the slide shoe, wherein the outer cover of the slide body is provided with a slide cover which is connected to the inner cavity of the slide shoe, the slide cover is provided with an exhaust fan which is connected to the inner cavity of the slide cover and is used to extract hot air from the slide shoe and the inner cavity of the slide cover, and the controlled end of the exhaust fan is connected to a PLC controller; two air inlets are symmetrically provided on the slide shoe, and the air inlets are provided with heat exchange tubes which are used to exchange heat with the intake air drawn in by the exhaust fan to reduce the intake air temperature.

[0006] Preferably, the sliding shoe is symmetrically provided with two connecting openings for connecting the inner cavity of the sliding shoe with the inner cavity of the sliding shoe cover.

[0007] Preferably, both ends of the heat exchange tube are connected to a water cooler for providing circulating cooling water to the heat exchange tube through a connected circulation pipeline, and the controlled end of the water cooler is connected to the output end of the PLC controller.

[0008] Preferably, the water outlet of the water chiller is provided with a pump for pumping circulating cooling water into the heat exchange tube and returning the circulating cooling water after heat exchange to the water chiller, and the controlled end of the pump is connected to the output end of the PLC controller.

[0009] Preferably, a temperature sensor for monitoring the temperature of the inner cavity is provided in the inner cavity of the skid cover, and the output end of the temperature sensor is connected to the input end of the PLC controller.

[0010] Due to the adoption of the above technical scheme, the technical progress achieved by the present invention is as follows.

[0011] The utility model can extract the hot air in the inner cavity of the sliding shoe and the sliding shoe cover through the exhaust fan; the heat exchange pipe and the water cooler can be used to exchange heat with the intake air drawn in by the exhaust fan, thereby reducing the intake air temperature; the overall external discharge heat dissipation of the sliding shoe can be realized, the temperature of the sliding shoe can be reduced, and the mill can be prevented from stopping due to the excessively high temperature of the sliding shoe, thereby effectively ensuring the normal operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a cross-sectional view of the utility model;

[0013] Figure 2 It is a side view of the utility model.

[0014] Among them: 1. Cylinder, 2. Slider body, 3. Slider shoe, 31. Air inlet, 32. Connecting port, 4. Slider cover, 5. Exhaust fan, 6. Heat exchange pipe, 7. Circulation pipe, 8. Water cooler. DETAILED DESCRIPTION

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0016] An external heat dissipation device for a grinding mill slide, combined with Figure 1 to Figure 2 As shown, it includes a sliding shoe body 2 arranged at the end of the cylinder 1 along the circumference of the cylinder 1 of the mill, and the sliding shoe body 2 is slidably assembled with the sliding shoe shoe 3. The outer cover of the sliding shoe body 2 is provided with a sliding shoe cover 4, and the sliding shoe shoe 3 is symmetrically provided with two connecting ports 32, and the inner cavity of the sliding shoe 3 is connected with the inner cavity of the sliding shoe cover 4 through the connecting ports 32.

[0017] An exhaust fan 5 is provided on the sliding shoe cover 4, and the exhaust port of the exhaust fan 5 is connected to the inner cavity of the sliding shoe cover 4. The exhaust fan 5 is used to extract the hot air in the inner cavity of the sliding shoe 3 and the sliding shoe cover 4, so as to realize the external heat dissipation of the sliding shoe.

[0018] Two air inlets 31 are symmetrically provided on the sliding shoe 3. The air inlets 31 are provided with heat exchange tubes 6. The heat exchange tubes 6 are used for exchanging heat with the air drawn in by the exhaust fan 5, thereby reducing the air temperature and facilitating the heat dissipation of the sliding shoe.

[0019] Both ends of the heat exchange tube 6 are connected to a water chiller 8 through a connected circulation pipe 7, and the water chiller 8 is used to provide circulating cooling water to the heat exchange tube 6. A pump is provided at the water outlet of the water chiller 8, and the pump is used to pump the circulating cooling water into the heat exchange tube 6 and return the circulating cooling water after heat exchange to the water chiller 8.

[0020] A temperature sensor is arranged in the inner cavity of the skid cover 4, and the temperature sensor is used to monitor the inner cavity temperature.

[0021] The device also includes a PLC controller, the input end of the PLC controller is connected to the output end of the temperature sensor; the output end of the PLC controller is connected to the controlled end of the exhaust fan 5, the water cooler 8 and the pump respectively. The PLC controller controls the exhaust speed of the exhaust fan 5, the cooling temperature of the water cooler 8 and the pumping speed of the pump according to the temperature information monitored by the temperature sensor, thereby controlling the external heat dissipation effect of the sliding shoe, reducing the temperature of the sliding shoe, and thus avoiding the mill tripping due to the excessive temperature of the sliding shoe, effectively ensuring the normal operation of the equipment.

[0022] When the utility model is in use, the hot air in the inner cavity of the sliding shoe 3 and the sliding shoe cover 4 can be extracted through the exhaust fan 5; the incoming air drawn in by the exhaust fan 5 can be heat exchanged through the heat exchange pipe 6 and the water cooler 8, thereby reducing the incoming air temperature; the overall external discharge heat dissipation of the sliding shoe can be realized, the temperature of the sliding shoe can be reduced, and the mill can be prevented from stopping due to the excessive temperature of the sliding shoe, thereby effectively ensuring the normal operation of the equipment.

Claims

1. An external heat dissipation device for a grinding mill shoe, comprising a shoe body (2) arranged at the end of a grinding mill barrel (1) along the circumference of the grinding mill barrel (1) and slidably assembled with a shoe shoe (3), characterized in that: The outer cover of the sliding shoe body (2) is provided with a sliding shoe cover (4) connected to the inner cavity of the sliding shoe (3); the sliding shoe cover (4) is provided with an exhaust fan (5) connected to the inner cavity of the sliding shoe cover (4) and used to extract hot air from the inner cavities of the sliding shoe (3) and the sliding shoe cover (4); the controlled end of the exhaust fan (5) is connected to a PLC controller; two air inlets (31) are symmetrically provided on the sliding shoe (3); the air inlets (31) are provided with heat exchange pipes (6) used for heat exchange with the incoming air sucked in by the exhaust fan (5) to reduce the incoming air temperature.

2. The external heat dissipation device for a grinding mill shoe according to claim 1, characterized in that: The sliding shoe (3) is symmetrically provided with two communication ports (32) for achieving communication between the inner cavity of the sliding shoe (3) and the inner cavity of the sliding shoe cover (4).

3. The external heat dissipation device for a grinding mill shoe according to claim 1 is characterized in that: Both ends of the heat exchange tube (6) are connected to a water cooler (8) for providing circulating cooling water to the heat exchange tube (6) through a communicating circulation pipeline (7), and a controlled end of the water cooler (8) is connected to an output end of a PLC controller.

4. The external heat dissipation device for a grinding mill shoe according to claim 3 is characterized in that: The water outlet of the water cooler (8) is provided with a pump for pumping circulating cooling water into the heat exchange tube (6) and returning the circulating cooling water after heat exchange to the water cooler (8), and the controlled end of the pump is connected to the output end of the PLC controller.

5. The external heat dissipation device for a grinding mill shoe according to claim 1, characterized in that: A temperature sensor for monitoring the temperature of the inner cavity is arranged in the inner cavity of the sliding shoe cover (4), and the output end of the temperature sensor is connected to the input end of the PLC controller.

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