A cooling mechanism for a ball mill used in copper-gold powder processing

Abstract

This utility model belongs to the field of ball mill cooling technology, and relates to a cooling mechanism for a ball mill used in copper-gold powder processing. It includes a dustproof outer shell covering the ball mill, which is divided into a cooling zone and a drive zone by a partition plate. The ball mill drum is located in the cooling zone, and a water storage tank is located at the bottom of the support base. An upper spray cooling system and a bottom spray cooling system are respectively installed in the cooling zone, with the ball mill drum positioned between them. A first and second ventilation fan are also installed in the cooling zone, positioned opposite each other. This utility model achieves all-around cooling of the ball mill drum through the cooperation of the bottom and upper spray cooling systems. The two opposing ventilation fans in the cooling zone create air convection, accelerating the removal of residual heat and heat from the air. A cold air unit delivers cold air, working in conjunction with the spray system for rapid cooling. The dustproof outer shell completely covers the ball mill, blocking dust and debris, reducing water waste and equipment maintenance costs.

Description

Technical Field

[0001] This utility model relates to the field of ball mill cooling technology, and in particular to a ball mill cooling mechanism for copper-gold powder processing. Background Technology

[0002] A ball mill is a device that grinds minerals by having steel balls inside collide with the crushed material. During this process, the steel balls inevitably collide with the inner wall of the cylinder, generating a lot of heat. Excessive temperature may have a certain impact on the metal powder.

[0003] A circulating water cooling device for a copper-gold powder ball mill, disclosed in Chinese patent CN215612051U, includes a base. The ball mill body is mounted on the upper surface of the base. Support rods are fixedly connected to all four corners of the upper surface of the base. A support plate is fixedly connected to the top of the support rods. A top water tank is fixedly connected to the middle of the upper surface of the support plate. A buried water tank is pre-embedded directly below the base. A water collection trough is fixedly connected to the upper surface of the base and below the ball mill body, allowing water to be circulated and effectively improving resource utilization. During the cooling process, a chiller, a second liquid pump, and a third liquid pump are simultaneously activated, so that the chiller can circulate the room temperature water in the top water tank into cooling water, which can improve the cooling effect on the ball mill body.

[0004] However, while this patent addresses the problem, it lacks a dustproof outer shell. The main body of the ball mill is exposed to the environment. After the ball mill shell is water-cooled and wetted, it is easy for environmental dust and debris to adhere to it. After subsequent rinsing, the impurities will flow into the water collection tank and accumulate there, requiring frequent water changes. Furthermore, since the material inside the ball mill is mainly concentrated at its bottom during operation, the temperature at the bottom is much higher than other areas. Being exposed, it is also affected by the external ambient temperature, resulting in an unsatisfactory overall cooling effect. Utility Model Content

[0005] In order to solve the above-mentioned technical problems, this utility model provides a cooling mechanism for a ball mill used in copper-gold powder processing.

[0006] The technical solution of this utility model is achieved through the following scheme: a cooling mechanism for a ball mill for copper-gold powder processing, including a support base, a dustproof shell and a ball mill, wherein the ball mill and a cooling air unit are installed on the support base, the dustproof shell covers the ball mill, and the dustproof shell is divided into a cooling zone and a driving zone by an isolation plate, the ball mill drum is located in the cooling zone, a water storage tank is opened at the bottom of the support base, and an upper spray cooling system and a bottom spray cooling system are respectively arranged in the cooling zone, with the ball mill drum located between the upper spray cooling system and the bottom spray cooling system;

[0007] The cooling zone is also equipped with a first ventilation fan and a second ventilation fan arranged opposite to each other. The air cooler is located on a support base near the second ventilation fan. The dustproof housing has an angled air vent, and the air cooler is connected to the dustproof housing cooling zone through the angled air vent.

[0008] Through the above technical solutions, the bottom spray system and the upper spray cooling system work together to form a comprehensive cooling coverage for the ball mill drum. The first and second ventilation fans, which are positioned opposite each other in the cooling zone, create a good air convection environment, accelerate the airflow speed, and quickly remove the residual heat on the surface of the ball mill after spray cooling, as well as the heat in the air. At the same time, the air cooler unit delivers cold air into the cooling zone, further reducing the temperature in the cooling zone. Working in synergy with the spray cooling system, it achieves rapid and efficient cooling of the ball mill. The dustproof shell completely covers the ball mill, effectively preventing dust and debris from the external environment from entering the cooling zone, reducing water waste and equipment maintenance costs caused by frequent water changes.

[0009] Preferably, the upper spray cooling system includes an arc-shaped spray plate, a lead screw moving device, a first water pump, and a chiller. The arc-shaped spray plate is movably mounted on the lead screw moving device, the drive end of the lead screw moving device is connected to a drive motor, the first water pump pipeline is connected to a water storage tank and a chiller, and the chiller is connected to the arc-shaped spray plate through a telescopic pipe.

[0010] Preferably, a high-pressure fan-shaped nozzle is installed at one end of the arc-shaped spray plate near the first ventilation fan, and the high-pressure fan-shaped nozzle is directly facing the first ventilation fan.

[0011] Through the above technical solutions, the arc-shaped spray plate sprays the entire outer surface of the rotating drum without dead angles. In conjunction with the screw moving device, it ensures that the cooling water is evenly covered, effectively removing the heat from the surface of the rotating drum. The coordinated work of the high-pressure fan-shaped nozzle and the first ventilation fan maximizes the cooling effect. The first ventilation fan not only accelerates the airflow and promotes the evaporation and heat dissipation of the cooling water, but also helps to expel the hot air around the ball mill from the cooling area, forming a good ventilation and heat dissipation environment.

[0012] Preferably, the first water pump is connected to the water storage tank through a guide pipe, and the end of the guide pipe located in the water storage tank is semi-circular or irregularly toothed.

[0013] Preferably, the bottom spraying system includes a second water pump and a placement base. The second water pump is connected to the placement base, which has water channels inside and a plurality of high-pressure atomizing nozzles are arranged in an array on the placement base.

[0014] Preferably, the dustproof housing also has a vent and a heat dissipation vent, and filters are installed inside the angled air vent, the vent, and the heat dissipation vent, with the first ventilation fan close to the vent.

[0015] Through the above technical solutions, the semi-circular or irregular toothed design reduces the resistance when the guide pipe draws water, avoids the phenomenon of air stagnation, and ensures that the first water pump can provide sufficient water to the upper spray cooling system in a timely manner. The vent on the dustproof shell, together with the first ventilation fan, forms an effective air circulation channel. The filter effectively blocks dust and debris from the external environment from entering the dustproof shell when the air flows, ensuring a relatively clean cooling environment and reducing various problems caused by dust accumulation.

[0016] In summary, this utility model has the following beneficial effects:

[0017] 1. This utility model utilizes a bottom spray system and an upper spray cooling system to form a comprehensive cooling coverage of the ball mill drum. The first and second ventilation fans, positioned opposite each other within the cooling zone, create a favorable air convection environment, accelerating airflow and quickly removing residual heat from the ball mill surface after spray cooling, as well as heat from the air. Simultaneously, a cold air unit delivers cold air into the cooling zone, further reducing the temperature. Working in synergy with the spray cooling system, this achieves rapid and efficient cooling of the ball mill. The dustproof outer shell completely covers the ball mill, effectively preventing dust and debris from the external environment from entering the cooling zone, reducing water waste and equipment maintenance costs associated with frequent water changes.

[0018] 2. The arc-shaped spray plate sprays the entire outer surface of the rotating drum without dead angles. In conjunction with the screw moving device, it ensures that the cooling water is evenly covered and effectively removes the heat from the surface of the rotating drum. The high-pressure fan-shaped nozzles and the first ventilation fan work together to maximize the cooling effect. The first ventilation fan not only accelerates the air flow and promotes the evaporation and heat dissipation of the cooling water, but also helps to expel the hot air around the ball mill from the cooling area, forming a good ventilation and heat dissipation environment.

[0019] 3. The semi-circular or irregular toothed design reduces the resistance when the guide pipe draws water, avoids air stagnation, and ensures that the first water pump can provide sufficient water to the upper spray cooling system in a timely manner. The vent on the dustproof shell, together with the first ventilation fan, forms an effective air circulation channel. The filter effectively blocks dust and debris from the external environment from entering the dustproof shell during airflow, ensuring a relatively clean cooling environment and reducing various problems caused by dust accumulation. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of this utility model from the right perspective after the sealing plate has been removed;

[0023] Figure 4 This is a schematic diagram of the internal structure of the disassembled ball mill and dustproof shell of this utility model;

[0024] Figure 5 This is a cross-sectional structural diagram of the disassembly of the ball mill and dustproof shell of this utility model.

[0025] Explanation of reference numerals in the attached diagram: 1. Support base; 2. Dustproof housing;

[0026] 3. Upper spray cooling system; 31. Arc-shaped spray plate; 32. Screw moving device; 33. Drive motor; 34. First water pump; 35. Chiller;

[0027] 4. Bottom spray system; 41. Second water pump; 42. Placement base; 5. Air cooling unit; 51. Angled air outlet; 6. First ventilation fan; 7. Second ventilation fan; 8. Telescopic pipe; 9. Isolation plate; 10. Sealing plate; 11. Clamp; 12. Vent; 13. Heat dissipation vent;

[0028] 100. Ball mill; 110. Water inlet; 111. Water exchange outlet. Detailed Implementation

[0029] To better understand the above-mentioned objectives, features and advantages of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification. The present invention will be further described in detail below with reference to the accompanying drawings.

[0031] A cooling mechanism for a ball mill used in copper-gold powder processing, such as Figures 1-5 As shown, the system includes a support base 1, a dustproof housing 2, and a ball mill 100. The ball mill 100 and a cooling air unit 5 are mounted on the support base 1. The dustproof housing 2 covers the ball mill 100 and is divided into a cooling zone and a drive zone by an isolation plate 9. The ball mill 100's rotating drum is located in the cooling zone. A water storage tank is located at the bottom of the support base 1. An upper spray cooling system 3 and a bottom spray cooling system 4 are respectively installed in the cooling zone. The ball mill 100's rotating drum is located between the upper spray cooling system 3 and the bottom spray cooling system 4. The dustproof housing 2 is composed of an isolation plate 9, a sealing plate 10, and an arc-shaped cover, all of which are screwed onto the support base 1. An observation window is provided on the arc-shaped cover of the dustproof housing 2, allowing operators to observe the operating status of the spray system in real time.

[0032] The support base 1 is equipped with a water level scale, which is at the same height as the water storage tank and is connected to it.

[0033] The dustproof housing 2 can effectively block external dust and impurities from entering the ball mill 100, reducing the impact of dust on water resources and reducing the frequency of water changes. The support base 1 also has a water inlet 110 and a water exchange inlet 111 connected to the water storage tank. It should be noted that both the water inlet 110 and the water exchange inlet 111 are connected to external water pipes (not shown). The water should be changed regularly to keep the cooling water clean.

[0034] The cooling zone is also equipped with a first ventilation fan 6 and a second ventilation fan 7 arranged opposite to each other. The upper spray cooling system 3, the bottom spray system 4, the first ventilation fan 6 and the second ventilation fan 7 form a cross shape. The ball mill 100 rotating cylinder is located between the four, and all four are located in the cooling zone. The first ventilation fan 6 and the second ventilation fan 7 rotate between the isolation plate 9 and the sealing plate 10. The air cooler unit 5 is located on the support base 1 on the side close to the second ventilation fan 7. The dustproof shell 2 has an oblique air vent 51. The air cooler is connected to the cooling zone of the dustproof shell 2 through the oblique air vent 51.

[0035] The all-around spraying method ensures that all parts of the ball mill 100 rotating drum are fully cooled, effectively removing the large amount of heat generated during the operation of the ball mill 100. The rotation of the ventilation fan accelerates the airflow in the cooling zone, which on the one hand accelerates the evaporation of water after spraying, and further enhances the cooling effect through heat absorption by evaporation; on the other hand, the ventilation environment helps to expel the hot air in the cooling zone in a timely manner, forming a continuous exchange of hot and cold air, making the cooling effect more stable and efficient. The air cooler unit 5 can deliver low-temperature air into the cooling zone. The angled air outlet 51 is directly opposite the blades of the second ventilation fan 7. Without additional drive, the second ventilation fan 7 is driven by the cold air input by the air cooler, thereby accelerating the flow of cold air in the cavity.

[0036] The upper spray cooling system 3 includes an arc-shaped spray plate 31, a lead screw moving device 32, a first water pump 34, and a chiller 35. The arc-shaped spray plate 31 is movably mounted on the lead screw moving device 32. The drive end of the lead screw moving device 32 is connected to a drive motor 33. The first water pump 34 is connected to a water storage tank and a chiller 35 via a pipeline. The chiller 35 is connected to the arc-shaped spray plate 31 through a telescopic pipe 8. Several high-pressure atomizing nozzles are installed in an arc-shaped array on the arc-shaped spray plate 31. The drive motor 33 is preferably a servo motor and is installed in the drive area. The arc-shaped spray plate 31 is mounted on the lead screw moving device 32. The lever moves on the sliding device 32 to cover the upper part of the ball mill 100. Since the ball mill 100 is rotating, the bottom spray can perfectly cool the ball mill 100 drum. The first water pump 34 is preferably a self-priming pump, which is located outside the dustproof housing 2 along with the chiller 35. The arc-shaped spray plate 31 is connected to the telescopic end of the telescopic pipe 8 to reduce pipeline stress. The telescopic pipe 8 passes through the drive area and is connected to the chiller 35 outside the dustproof housing 2. The part of the telescopic pipe 8 located outside the dustproof housing 2 is fixedly installed on the surface of the dustproof housing 2 by multiple clamps 11.

[0037] The first water pump 34 is connected to the water storage tank through a guide pipe. The end of the guide pipe located in the water storage tank is semi-circular or irregularly toothed. Even if it is adsorbed to the bottom of the water storage tank, the cooling water will enter the guide pipe from the gap at the end of the pipe to complete the pumping and reduce the occurrence of air stagnation. The guide pipe is preferably made of metal or rigid plastic and is embedded in the support base 1.

[0038] A high-pressure fan-shaped nozzle is installed at one end of the arc-shaped spray plate 31 near the first ventilation fan 6. The high-pressure fan-shaped nozzle is directly facing the first ventilation fan 6, which is close to the vent 12.

[0039] The high-pressure fan-shaped nozzle is directly facing the first ventilation fan 6. The high-pressure water jet impacts the fan blades of the first ventilation fan 6, providing rotational power for the first ventilation fan 6 so that it can operate without an additional power drive device. After the first ventilation fan 6 rotates, it can accelerate the air flow in the cooling zone and quickly expel the hot air generated around the 100-turn ball mill cylinder, forming a good ventilation circulation.

[0040] Driven by a high-pressure fan nozzle, the first ventilation fan 6 rotates and works in conjunction with the second ventilation fan 7 and the cold air delivered by the air cooling unit 5 to form a more efficient hot and cold air exchange system. The cold air flows rapidly in the cooling zone and exchanges heat with the ball mill 100-turn cylinder. It is then promptly discharged by the first ventilation fan 6, while new cold air is constantly replenished, continuously carrying away heat and maintaining a low-temperature environment in the cooling zone.

[0041] The dustproof housing 2 also has a vent 12 and a heat dissipation vent 13. Filters are installed in the angled air vent 51, the vent 12 and the heat dissipation vent 13. The first ventilation fan 6 is close to the vent 12. The heat dissipation vent 13 is located in the drive area for self-heating. The vent 12 and the angled air vent 51 are located in the cooling area. The filter effectively prevents impurities in the outside air from flowing in.

[0042] The bottom spray system 4 includes a second water pump 41 and a base 42. The second water pump 41 is connected to the base 42 by a pipeline. The base 42 has a water channel and a number of high-pressure atomizing nozzles are arranged in an array on the base 42. The second water pump 41 is preferably a submersible pump and is located in a water storage tank. The multiple high-pressure atomizing nozzles are connected to the water channel. Through the reasonable design of the water channel, the spray is evenly distributed to various parts of the base 42 to achieve comprehensive and uniform spray cooling of the bottom of the ball mill 100 rpm cylinder.

[0043] Working principle: The staff first injects enough cooling water into the water storage tank at the bottom of the support base 1, starts the ball mill 100 and the air cooling unit 5, the air cooling unit 5 starts to run, and delivers cold air to the cooling area of ​​the dustproof shell 2 through the slanted air vent 51 opened on the dustproof shell 2, creating a low temperature environment for the entire cooling area.

[0044] The first water pump 34 starts and draws cooling water from the water storage tank through the guide pipe. The drawn cooling water enters the chiller 35 for cooling treatment. After reaching a lower temperature, it is transported to the arc-shaped spray plate 31 through the telescopic pipe 8. Under the action of the drive motor 33, the screw moving device 32 drives the arc-shaped spray plate 31 to move, thereby adjusting the spray position and realizing all-round spray cooling of the upper part of the ball mill 100 rotating drum.

[0045] The second water pump 41 starts simultaneously, transporting the cooling water in the water storage tank to the placement base 42. The cooling water flows in the water channel and is distributed to several high-pressure atomizing nozzles arrayed on the placement base 42 to uniformly spray and cool the bottom of the ball mill 100-rotor cylinder.

[0046] During the spraying process, the water jet from the high-pressure fan nozzle impacts the first ventilation fan 6, causing the first ventilation fan 6 to start rotating and expelling the hot air in the cooling zone through the vent 12 opened on the dustproof housing 2.

[0047] The cold air blows the second ventilation fan 7 to rotate, so that the cold air can quickly spread throughout the entire cooling area, ensuring that all parts in the cooling area are kept at a low temperature.

[0048] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments that can be applied to other fields. However, any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A ball mill cooling mechanism for copper gold powder processing, characterized by: The device includes a support base (1), a dustproof shell (2), and a ball mill (100). The ball mill (100) and a cooling air unit (5) are installed on the support base (1). The dustproof shell (2) covers the ball mill (100). The dustproof shell (2) is divided into a cooling zone and a driving zone by a partition plate (9). The ball mill (100) rotor is located in the cooling zone. A water storage tank is opened at the bottom of the support base (1). An upper spray cooling system (3) and a bottom spray system (4) are respectively installed in the cooling zone. The ball mill (100) rotor is located between the upper spray cooling system (3) and the bottom spray system (4). The cooling zone is also provided with a first ventilation fan (6) and a second ventilation fan (7) arranged opposite to each other. The air cooler (5) is located on a support base (1) on the side close to the second ventilation fan (7). The dustproof shell (2) is provided with an oblique air vent (51). The air cooler (5) is connected to the cooling zone of the dustproof shell (2) through the oblique air vent (51).

2. The cooling mechanism of the ball grinding mill for processing copper and gold powder according to claim 1, characterized in that: The upper spray cooling system (3) includes an arc-shaped spray plate (31), a screw moving device (32), a first water pump (34), and a chiller (35). The arc-shaped spray plate (31) is movably mounted on the screw moving device (32). The driving end of the screw moving device (32) is connected to the drive motor (33). The first water pump (34) is connected to the water storage tank and the chiller (35) through a pipeline. The chiller (35) is connected to the arc-shaped spray plate (31) through a telescopic pipe (8).

3. The cooling mechanism of the ball grinding mill for processing copper-gold powder according to claim 2, characterized in that: The arc-shaped spray plate (31) is equipped with a high-pressure fan-shaped nozzle at one end near the first ventilation fan (6), and the high-pressure fan-shaped nozzle is directly facing the first ventilation fan (6).

4. The cooling mechanism of the ball grinding mill for processing copper and gold powder according to claim 3, characterized in that: The first water pump (34) is connected to the water storage tank through a guide pipe, and the end of the guide pipe located in the water storage tank is semi-circular or irregularly toothed.

5. The cooling mechanism of the ball grinding mill for processing copper and gold powder according to claim 1, characterized in that: The bottom spray system (4) includes a second water pump (41) and a placement base (42). The second water pump (41) is connected to the placement base (42) by a pipeline. The placement base (42) is provided with water channels and a number of high-pressure atomizing nozzles are arranged in an array on the placement base (42).

6. The cooling mechanism for a ball mill used in copper-gold powder processing according to claim 1, characterized in that: The dustproof housing (2) also has a vent (12) and a heat dissipation vent (13). Filters are installed in the inclined air vent (51), vent (12) and heat dissipation vent (13). The first ventilation fan (6) is close to the vent (12).

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