A temperature monitoring and protection mechanism for a vertical mill

Abstract

The utility model discloses a temperature monitoring and protection mechanism for a vertical mill, including a mill body, a feeding hopper is arranged on the top of the mill body, a discharge hopper is arranged on the side end surface of the mill body, a feeding mechanism and a grinding mechanism are arranged inside the mill body, a temperature monitoring mechanism is detachably installed at the lower end of the discharge hopper, a cooling water pipe is arranged on the outer side of the mill body, the temperature monitoring mechanism includes a temperature sensing funnel, a temperature sensor, a controller and a buzzer, the temperature sensor, the controller and the buzzer are fixedly installed on the side of the temperature sensing funnel, the temperature sensor, the buzzer and the controller are electrically connected, and a clamp is arranged on the upper end of the temperature sensing funnel. The utility model can monitor the temperature of the material discharged from the mill in real time through the temperature monitoring mechanism, and trigger a buzzer alarm when the temperature exceeds a preset threshold value, so as to promptly remind the operator to take measures.

Description

Technical Field

[0001] The utility model relates to the technical field of vertical mills, in particular to a temperature monitoring and protection mechanism for a vertical mill. Background Art

[0002] Vertical mill is a kind of high-efficiency grinding equipment which integrates the functions of crushing, grinding, drying and grading. Its structural feature is that the main body is in vertical layout. The main working parts include grinding disc, grinding roller, driving device, grading device, feeding device and discharging device.

[0003] When the existing vertical mill is in use, the grinding disc and the material generate heat due to long-term friction. Excessively high surface temperature may cause the material to soften, adhere, or even burn, affecting the grinding efficiency and equipment life. If the temperature is too low, the wet material may not be effectively dried, reducing the grinding efficiency and increasing energy consumption. Most of the vertical mills on the current market lack temperature monitoring and protection mechanisms, especially the older mills, which have insufficient automation. When adding temperature monitoring equipment to the equipment, it is necessary to open holes in the equipment for installation, which not only affects the air tightness of the equipment, but also has poor adaptability and low monitoring accuracy. Therefore, a temperature monitoring and protection mechanism for a vertical mill is needed to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a temperature monitoring and protection mechanism for a vertical mill, which has the advantages of convenient installation and high monitoring accuracy, and solves the problem in the prior art that it is inconvenient to add a temperature monitoring device to a vertical mill that does not have a temperature monitoring function on the market.

[0005] To achieve the above object, the utility model provides the following technical solutions: a temperature monitoring and protection mechanism for a vertical mill, comprising a mill body, a feeding hopper is arranged on the top of the mill body, a discharge hopper is arranged on the side end surface of the mill body, a feeding mechanism and a grinding mechanism are arranged inside the mill body, a temperature monitoring mechanism is detachably installed at the lower end of the discharge hopper, and a cooling water pipe is arranged on the outer side of the mill body;

[0006] The temperature monitoring mechanism includes a temperature sensing funnel, a temperature sensor, a controller and a buzzer. The temperature sensor, the controller and the buzzer are fixedly installed on the side of the temperature sensing funnel. The temperature sensor, the buzzer and the controller are electrically connected. A clamping plate is arranged on the upper end of the temperature sensing funnel.

[0007] As a preferred temperature monitoring and protection mechanism for a vertical mill of the utility model, the clamping plate is a "U"-shaped structure, and a first threaded bolt is provided on a side of the clamping plate.

[0008] As a preferred temperature monitoring and protection mechanism for a vertical mill of the utility model, an ear plate is provided on the top of the temperature-sensitive funnel, a rotatably connected rotating shaft is provided inside the ear plate, and the clamping plate and the temperature-sensitive funnel are rotatably connected through the ear plate and the rotating shaft.

[0009] As a preferred temperature monitoring and protection mechanism of a vertical mill of the utility model, the end of the rotating shaft is provided with an external thread, a nut is provided on the rotating shaft, and the ear plates are located on both sides of the clamping plate.

[0010] As a preferred temperature monitoring and protection mechanism for a vertical mill of the utility model, the temperature sensing funnel is made of aluminum alloy, and a heat exchange plate is arranged inside the temperature sensing funnel.

[0011] As a preferred temperature monitoring and protection mechanism for a vertical mill of the utility model, the heat exchange plate is a spiral aluminum alloy plate.

[0012] As a preferred temperature monitoring and protection mechanism of a vertical mill of the utility model, the cooling water pipe is spirally wound around the outer end surface of the grinding machine body, and the cooling water pipe is located outside the grinding mechanism.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model can monitor the temperature of the material discharged from the mill in real time through the temperature monitoring mechanism, and trigger the buzzer alarm when the temperature exceeds the preset threshold, so as to promptly remind the operator to take measures to prevent material adhesion, equipment wear or failure caused by overheating of the equipment, thereby improving the service life of the equipment and reducing the equipment failure rate.

[0015] 2. The temperature monitoring mechanism of the utility model is detachably connected to the discharge hopper through a clamping plate. The installation and disassembly process is simple and quick. It is suitable for vertical mills of different models without large-scale transformation of the original equipment. The temperature sensing funnel cooperates with the rotating shaft through the ear plate to adjust the pitch angle, which can adapt to the discharge angle of different equipment, further expanding the scope of application of the mechanism.

[0016] 3. The temperature-sensing funnel of the utility model is provided with a heat exchange plate made of aluminum alloy, which increases the contact area and contact time between the material and the temperature-sensing funnel, improves the heat transfer efficiency, ensures that the temperature sensor can accurately sense the material temperature, and improves the monitoring accuracy. The cooling water pipe is spirally wound around the outside of the grinding mechanism. After the refrigerant is introduced, the high-temperature parts can be directly and effectively cooled to prevent the grinding mechanism from overheating and affecting the work efficiency or causing equipment damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front cross-sectional view of the utility model;

[0018] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the overall structure of the temperature monitoring mechanism of the utility model;

[0020] Figure 4 For the utility model Figure 3 Enlarged view of point A in the middle;

[0021] Figure 5 It is a side sectional view of the temperature monitoring mechanism of the utility model.

[0022] In the figure: 1. grinding mill body; 101. feeding hopper; 102. discharging hopper; 2. feeding mechanism; 3. grinding mechanism; 4. temperature monitoring mechanism; 401. temperature sensing funnel; 402. controller; 403. temperature sensor; 404. buzzer; 405. heat exchange plate; 406. ear plate; 407. rotating shaft; 408. nut; 410. clamping plate; 411. first bolt; 5. cooling water pipe. DETAILED DESCRIPTION

[0023] See also Figure 1-Figure 5 A temperature monitoring and protection mechanism for a vertical mill comprises a mill body 1, a feeding hopper 101 is arranged on the top of the mill body 1, a discharge hopper 102 is arranged on the side end surface of the mill body 1, a feeding mechanism 2 and a grinding mechanism 3 are arranged inside the mill body 1, a temperature monitoring mechanism 4 is detachably installed at the lower end of the discharge hopper 102, and a cooling water pipe 5 is arranged on the outer side of the mill body 1;

[0024] The temperature monitoring mechanism 4 includes a temperature sensing funnel 401, a temperature sensor 403, a controller 402 and a buzzer 404. The temperature sensor 403, the controller 402 and the buzzer 404 are fixedly installed on the side of the temperature sensing funnel 401. The temperature sensor 403, the buzzer 404 and the controller 402 are electrically connected. A clamping plate 410 is provided at the upper end of the temperature sensing funnel 401.

[0025] The clamping plate 410 is a “U”-shaped structure, and a first threaded bolt 411 is disposed on a side surface of the clamping plate 410 .

[0026] The clamping plate 410 is clamped on the edge of the discharge hopper 102, and then the first bolt 411 is tightened to squeeze the outer end surface of the discharge hopper 102, so that the temperature monitoring mechanism 4 is fixed to the discharge hopper 102, which can adapt to most equipment models on the market.

[0027] An ear plate 406 is disposed on the top of the temperature-sensing funnel 401 , and a rotation shaft 407 is rotatably connected therein. The clamping plate 410 and the temperature-sensing funnel 401 are rotationally connected through the ear plate 406 and the rotation shaft 407 .

[0028] The rotating connected ear plate 406 structure allows the pitch angle of the temperature-sensing funnel 401 to be adjusted, thereby adapting to the discharge angles of different equipment, further improving the application range of the equipment.

[0029] An external thread is disposed at the end of the rotating shaft 407 , a nut 408 is disposed on the rotating shaft 407 , and the ear plates 406 are located on both sides of the clamping plate 410 .

[0030] By tightening the nut 408, the ear plate 406 is pressed against the side of the clamping plate 410, so that the ear plate 406 and the temperature-sensing funnel 401 are fixed to prevent the temperature-sensing funnel 401 from rotating during the material receiving process.

[0031] The temperature sensing funnel 401 is made of aluminum alloy, and a heat exchange plate 405 is arranged inside the temperature sensing funnel 401 .

[0032] The material discharged from the mill body 1 falls into the temperature-sensing funnel 401, and the heat is transferred to the temperature sensor 403 through the heat exchange plate 405, so that the temperature of the discharged material is monitored by the temperature sensor 403, and the temperature in the equipment is predicted and evaluated. When the temperature exceeds the set threshold, the controller 402 starts the buzzer 404 to alarm, prompting the operator to stop the machine for cooling, or introduce refrigerant into the water cooling pipe to cool the equipment.

[0033] The heat exchange fin 405 is a spiral aluminum alloy fin.

[0034] The spiral heat exchange fins 405 can increase the contact area and contact time between the material and the temperature sensing funnel 401, thereby improving the temperature monitoring accuracy.

[0035] The cooling water pipe 5 is spirally wound around the outer end surface of the grinding machine body 1 , and the cooling water pipe 5 is located outside the grinding mechanism 3 .

[0036] By introducing a refrigerant into the cooling water pipe 5, the grinding mechanism 3 in the grinding body is cooled down, thereby preventing the grinding mechanism 3 from being overheated and causing material to adhere or be damaged.

[0037] When the device is in use, the clamping plate 410 of the temperature-sensing funnel 401 is clamped on the edge of the discharge hopper 102, and the first bolt 411 is tightened to squeeze the outer end surface of the discharge hopper 102 to ensure that the temperature-sensing funnel 401 is firmly installed. The pitch angle of the temperature-sensing funnel 401 is adjusted, and the ear plate 406 is connected to the rotating shaft 407 to adapt to the discharge angle of the mill. The nut 408 at the end of the rotating shaft 407 is tightened to fix the position of the ear plate 406 and the temperature-sensing funnel 401 to prevent the temperature-sensing funnel 401 from rotating during the material receiving process. The water inlet and outlet of the cooling water pipe 5 are connected to the outer The cooling water source and the return water system are correctly connected to ensure smooth water flow. The materials discharged from the grinding mill body 1 fall into the temperature sensing funnel 401, and the heat is quickly transferred to the temperature sensing funnel 401 through the heat exchange plate 405. The temperature sensor 403 in the temperature sensing funnel 401 detects the temperature change in real time and sends the signal to the controller 402. The controller 402 compares the received temperature signal with the preset threshold. If the threshold is exceeded, the alarm mechanism is triggered. After receiving the command from the controller 402, the buzzer 404 sounds an alarm to remind the operator to pay attention to the temperature condition of the equipment.

[0038] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A temperature monitoring and protection mechanism for a vertical mill, comprising a mill body (1), a feeding hopper (101) being arranged on the top of the mill body (1), a discharge hopper (102) being arranged on the side end surface of the mill body (1), a feeding mechanism (2) and a grinding mechanism (3) being arranged inside the mill body (1), characterized in that: A temperature monitoring mechanism (4) is detachably mounted on the lower end of the discharge hopper (102), and a cooling water pipe (5) is disposed on the outer side of the mill body (1); The temperature monitoring mechanism (4) comprises a temperature sensing funnel (401), a temperature sensor (403), a controller (402) and a buzzer (404); the temperature sensor (403), the controller (402) and the buzzer (404) are fixedly mounted on the side of the temperature sensing funnel (401); the temperature sensor (403), the buzzer (404) and the controller (402) are electrically connected; and a clamping plate (410) is provided at the upper end of the temperature sensing funnel (401).

2. The temperature monitoring and protection mechanism of a vertical mill according to claim 1, characterized in that: The clamping plate (410) is a "U"-shaped structure, and a first bolt (411) connected by a thread is arranged on a side surface of the clamping plate (410).

3. The temperature monitoring and protection mechanism of a vertical mill according to claim 1, characterized in that: The top of the temperature-sensing funnel (401) is provided with an ear plate (406), a rotatably connected rotating shaft (407) is provided inside the ear plate (406), and the clamping plate (410) and the temperature-sensing funnel (401) are rotatably connected in cooperation with the ear plate (406) and the rotating shaft (407).

4. The temperature monitoring and protection mechanism of a vertical mill according to claim 3, characterized in that: The end of the rotating shaft (407) is provided with an external thread, a nut (408) is provided on the rotating shaft (407), and the ear plates (406) are located on both sides of the clamping plate (410).

5. The temperature monitoring and protection mechanism of a vertical mill according to claim 1, characterized in that: The temperature sensing funnel (401) is made of aluminum alloy, and a heat exchange plate (405) is arranged inside the temperature sensing funnel (401).

6. The temperature monitoring and protection mechanism of a vertical mill according to claim 5, characterized in that: The heat exchange plate (405) is a spiral aluminum alloy plate.

7. The temperature monitoring and protection mechanism of a vertical mill according to claim 1, characterized in that: The cooling water pipe (5) is spirally wound on the outer end surface of the grinding machine body (1), and the cooling water pipe (5) is located outside the grinding mechanism (3).

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