An external circulating water cooling system for a ball mill

By using an external circulating water cooling system to cool the ball mill lubricating oil, the problems of lubricating oil aging and uneven distribution are solved, thus achieving stable lubrication effect and efficient equipment operation.

CN224453636UActive Publication Date: 2026-07-03QINGHAI HAIXIN MINING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGHAI HAIXIN MINING CO LTD
Filing Date
2025-08-07
Publication Date
2026-07-03

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  • Figure CN224453636U_ABST
    Figure CN224453636U_ABST
Patent Text Reader

Abstract

This utility model discloses an external circulating water cooling system for a ball mill, including a cooling oil circuit assembly, an oil temperature monitoring module, a ball mill reducer, and an equipment foundation. The cooling oil circuit assembly is connected to the ball mill reducer via pipelines. The oil temperature monitoring module is installed at the oil inlet of the ball mill reducer. The ball mill reducer is fixedly installed on the upper end of the equipment foundation. By combining the cooling oil circuit assembly with the ball mill reducer, cold water circulation is used to cool the lubricating oil, effectively reducing the temperature of the lubricating oil and avoiding the problem of lubricating oil aging and deterioration caused by excessive oil temperature, thus extending the service life of the lubricating oil. At the same time, the oil temperature monitoring module can monitor the oil temperature in real time, facilitating timely adjustment of the cooling intensity and ensuring lubrication effect. This utility model further improves the stability and reliability of the system, reduces ball mill failures caused by lubrication problems, lowers maintenance costs, and improves equipment operating efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of auxiliary equipment technology for ball mills, and in particular to an external circulating water cooling system for ball mills. Background Technology

[0002] Ball mills are commonly used crushing equipment in industries such as mining and building materials. Their internal components, such as gears and bearings, generate a large amount of heat during high-speed operation, requiring lubrication and cooling through lubricating oil. However, in existing ball mill lubrication systems, the lubricating oil is prone to aging and deterioration due to excessively high temperatures over long-term use, reducing its lubrication effect. Simultaneously, the lubricating grease between the large and small gears is prone to accumulation or uneven distribution, affecting the normal operation of the gears and even leading to equipment failure, increasing maintenance costs and downtime. Utility Model Content

[0003] The present invention aims to solve the problems mentioned in the background art above, and provides an external circulating water cooling system for ball mills to achieve effective cooling of lubricating oil, ensure lubrication effect, and reduce equipment failure technical problems.

[0004] To achieve the above-mentioned utility model objectives, the present utility model adopts the following technical solution: an external circulating water cooling system for a ball mill, comprising a cooling oil circuit assembly, an oil temperature monitoring module, a ball mill reducer, and an equipment foundation; the cooling oil circuit assembly is connected to the ball mill reducer via a pipeline; the oil temperature monitoring module is installed at the oil inlet of the ball mill reducer; and the ball mill reducer is fixedly installed at the upper end of the equipment foundation.

[0005] Furthermore, the cooling oil circuit assembly includes a water tank, a cold water inlet, a cold water outlet, and an oil delivery pipe; the water tank is rectangular; a cold water inlet is located at the bottom of one side of the water tank and is connected to the water delivery end; a cold water outlet is located at the upper end of the other side of the water tank to discharge cold water out of the water tank; a tortuous oil delivery pipe is located inside the water tank; one end of the oil delivery pipe extends out of the water tank and is connected to the gear oil pump at the top of the water tank; the other end of the oil delivery pipe extends out of the water tank and is connected to the ball mill reducer.

[0006] Furthermore, the ball mill reducer includes a gear oil pump and an oil storage chamber; the oil inlet of the gear oil pump is connected to the oil storage chamber through an oil return pipe; the oil outlet of the gear oil pump is connected to the ball mill lubrication part inside the ball mill reducer through an oil delivery pipe.

[0007] Furthermore, the water tank has a height of 2.0m and a width of 0.7m.

[0008] Compared with the prior art, this utility model has the following advantages:

[0009] This invention combines a cooling oil circuit assembly with a ball mill reducer, utilizing cold water circulation to cool the lubricating oil. This effectively reduces the lubricating oil temperature, preventing aging and deterioration caused by excessively high oil temperatures and extending the lubricating oil's service life. Simultaneously, the oil temperature monitoring module allows for real-time monitoring of the oil temperature, facilitating timely adjustments to the cooling intensity and ensuring optimal lubrication. This invention further enhances the system's stability and reliability, reduces ball mill malfunctions caused by lubrication issues, lowers maintenance costs, and improves equipment operating efficiency. Attached Figure Description

[0010] Figure 1 This is a schematic plan view of the overall structure of this utility model.

[0011] Legend: 1-Cold water inlet, 2-Oil pipeline, 3-Oil return pipeline, 4-Equipment foundation, 5-Gear oil pump, 6-Oil storage chamber, 7-Ball mill reducer, 8-Oil temperature monitoring module, 9-Cold water outlet, 10-Water tank. Detailed Implementation

[0012] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention: An external circulating water cooling system for a ball mill includes a cooling oil circuit assembly, an oil temperature monitoring module, a ball mill reducer 7, and an equipment foundation 4. The cooling oil circuit assembly is connected to the ball mill reducer 7 through a pipeline, and the circulating cold water of the cooling oil circuit assembly cools the output circulating lubricating oil. The oil temperature monitoring module is installed at the oil inlet of the ball mill reducer 7 to monitor the oil temperature in real time to prevent the oil temperature from being too high and causing a malfunction. The oil temperature has been reduced from about 60°C at the original installation to about 40°C at the present. The ball mill reducer 7 is fixedly installed on the upper end of the equipment foundation 4.

[0013] Specifically, the cooling oil circuit assembly includes a water tank 10, a cold water inlet 1, a cold water outlet 9, and an oil pipeline 2. The water tank 10 is rectangular. A cold water inlet 1 is located at the bottom of one side of the water tank 10 and is connected to the water supply end. A cold water outlet 9 is located at the upper end of the other side of the water tank 10, which discharges cold water from the water tank 10 to the ball mill discharge slurry tank for continued recycling. A tortuous oil pipeline 2 is located inside the water tank 10, and the entire pipeline is immersed in the cold water of the water tank 10, which can continuously circulate cold water to achieve a cooling effect. One end of the oil pipeline 2 extends out of the water tank 10 and is connected to a gear oil pump 5 at the top of the water tank 10. The other end of the oil pipeline 2 extends out of the water tank 10 and is connected to a ball mill reducer 7. The gear oil pump 5 draws out the lubricating oil in the ball mill reducer 7 for circulation to prevent the oil temperature from becoming too high.

[0014] Specifically, the ball mill reducer 7 includes a gear oil pump 5 and an oil storage chamber 6; the oil inlet of the gear oil pump 5 is connected to the oil storage chamber 6 through the oil return pipe 3; the oil outlet of the gear oil pump 5 is connected to the ball mill lubrication part inside the ball mill reducer 7 through the oil delivery pipe 2. When the gear oil pump 5 is working, it outputs the lubricating oil in the oil storage chamber 6 that is too hot, cools it in the cooling oil circuit assembly, and then delivers it to the bearings and the parts between the large and small gears of the ball mill to achieve lubrication.

[0015] Specifically, the water tank 10 has a height of 2.0m and a width of 0.7m.

[0016] In operation, the operator opens the water supply end to circulate cold water within the water tank 10. Then, the gear oil pump 5 is turned on, and the lubricating oil from the ball mill reducer 7 is circulated through the oil supply pipe 2 and return pipe 3. This lubricating oil is cooled within the pipes of the water tank 10 before being pumped back to the ball mill reducer 7 by the gear oil pump 5. The flow rate of the cold water can be controlled via the valve at the water supply end based on temperature information from the oil temperature monitoring module. When the oil temperature is too high, the valve opening is increased to increase the cold water flow rate and enhance the cooling effect; when the oil temperature is too low, the valve opening is decreased to reduce the cold water flow rate. The cooled lubricating oil is then pumped by the gear oil pump 5 to lubricate the bearings and the areas between the large and small gears of the ball mill.

[0017] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. An external circulation water cooling system for a ball mill comprising a cooling oil circuit assembly, an oil temperature monitoring module, a ball mill reducer (7) and a device foundation (4), characterized in that: The cooling oil circuit assembly is connected to the ball mill reducer (7) via a pipeline; the oil temperature monitoring module is installed at the oil inlet of the ball mill reducer (7); the ball mill reducer (7) is fixedly installed on the upper end of the equipment foundation (4).

2. An external recirculating water cooling system for a ball mill as claimed in claim 1, wherein: The cooling oil circuit assembly includes a water tank (10), a cold water inlet (1), a cold water outlet (9), and an oil pipeline (2); the water tank (10) is rectangular; a cold water inlet (1) is provided at the bottom of one side of the water tank (10) and connected to the water supply end; a cold water outlet (9) is provided at the upper end of the other side of the water tank (10) to discharge cold water out of the water tank (10); a tortuous oil pipeline (2) is provided inside the water tank (10); one end of the oil pipeline (2) extends out of the water tank (10) and is connected to the gear oil pump (5) at the top of the water tank (10); the other end of the oil pipeline (2) extends out of the water tank (10) and is connected to the ball mill reducer (7).

3. An external recirculating water cooling system for a ball mill as defined in claim 1, wherein: The ball mill reducer (7) includes a gear oil pump (5) and an oil storage chamber (6); the oil inlet of the gear oil pump (5) is connected to the oil storage chamber (6) through the oil return pipe (3); the oil outlet of the gear oil pump (5) is connected to the ball mill lubrication part in the ball mill reducer (7) through the oil delivery pipe (2).

4. An external recirculating water cooling system for a ball mill as claimed in claim 2, wherein: The water tank (10) is 2.0m high and 0.7m wide.