A mill discharge arrangement

Abstract

The utility model discloses a mill discharging device belongs to the mineral processing technical equipment field, has solved the problem of low operation efficiency of the existing mill discharging process to the pipeline wear, the sundries in slurry is easy to block the pipeline, needs to stop and maintain to lead to, the utility model discloses a discharging ear box is equipped with the discharging port at the bottom of discharging ear box, and the filter is clamped on the discharging port, and the filter bottom detachably connected has the discharging pipe, and the discharging pipe bottom is connected with the anti -scouring bucket, and the anti -scouring bucket side wall is equipped with the discharging main pipe. The utility model still passes through the anti -scouring bucket and the inside multiple steel balls, and the impact of the slurry is effectively reduced, and the wear caused by the slurry impact is effectively reduced, and the steel ball also delays the flow speed of the slurry, and the wear of the slurry to the subsequent pipeline is reduced. The utility model discloses simple structure, convenient operation, process safety simple, realizes the clean, efficient, stable of mineral processing process subsequent production, guarantees the efficient operation of long -term of production system.

Description

Technical Field

[0001] This utility model belongs to the field of mineral processing technology and equipment, and specifically relates to a mill discharge device. Background Technology

[0002] Grinding equipment such as ball mills and rod mills are the main production equipment for crushing and grinding ores in mineral processing plants and cement plants. Located at the front end of the mineral processing process, they have a significant impact on the subsequent production processes. Currently, the discharge process of mills mostly relies on the gravity flow of slurry through pipelines. This pipelines experience significant wear and have a short service life. In addition, because the slurry discharged from the mill contains impurities and grinding media debris, it is easy for these to enter the pipelines, causing blockages in the mineral processing pipelines and interference with subsequent classification and separation operations.

[0003] In the grinding process of mineral processing, the conventional pipelines used for conveying slurry to the mill discharge often suffer wear due to the high density of the ore, requiring shutdowns for replacement and impacting start-up efficiency and long-term stable operation. Furthermore, due to the use of explosives in ore mining, the ore contains numerous detonating cords and other debris, which are relatively light and float on the surface during grinding. These impurities are difficult to grind and easily enter the mill discharge pipes, clogging them. They can also impair classification efficiency in the classification process and clog the aeration holes of the flotation machine in the beneficiation process, causing a series of adverse effects on subsequent operations and disrupting the overall stability of the mineral processing flow. Utility Model Content

[0004] This invention provides a mill discharge device to solve the problems of high wear on pipelines during the existing mill discharge process, easy blockage of pipelines by impurities in the slurry, and low operating efficiency due to the need for shutdown maintenance.

[0005] The technical solution of this utility model is: a mill discharge device, including a discharge ear box, a discharge port at the bottom of the discharge ear box, a filter snapped onto the discharge port, a discharge pipe detachably connected to the bottom of the filter, an anti-impact bucket connected to the bottom of the discharge pipe, and a discharge main pipe on the side wall of the anti-impact bucket.

[0006] As a further improvement of this utility model, a discharge sleeve is fixedly connected between the discharge ear box and the anti-impact bucket, and the discharge sleeve is sleeved outside the discharge pipe.

[0007] As a further improvement of this utility model, the bottom of the anti-impact bucket is covered with multiple steel balls, which can prevent the slurry from abrading the bottom of the anti-impact bucket.

[0008] As a further improvement of this utility model, the inner wall of the discharge ear box is lined with rubber. Its advantage is that the rubber lining can not only delay wear, but also prevent the slurry from accumulating on the inner wall of the box, thus preventing the slurry from directly impacting the inner wall of the discharge ear box and reducing wear.

[0009] The beneficial effects of this utility model are as follows: This utility model, through its detachable filter and discharge pipe, allows for filter or discharge pipe replacement without stopping the mill operation, avoiding the drawbacks of existing devices that require shutdown for maintenance, leading to low operational efficiency. The snap-fit ​​filter acts as a limiter, ensuring the discharge pipe remains stable and does not shift. Simultaneously, it filters impurities in the mill's discharged slurry into the discharge ear box, preventing interference with subsequent classification and separation operations and avoiding blockage of mineral processing pipelines. This extends the service life of the discharge device and improves operational efficiency. Furthermore, this utility model effectively reduces the impact force of the slurry through the anti-impact bucket and multiple internal steel balls, significantly reducing wear caused by slurry impact. The steel balls also slow down the slurry's flow velocity, reducing wear on subsequent pipelines. This utility model has a simple structure, is easy to operate, and the process is safe and straightforward, achieving clean, efficient, and stable subsequent production in the mineral processing process, ensuring long-term, high-efficiency operation of the production system. Attached Figure Description

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

[0011] In the diagram: 1. Discharge ear box; 2. Filter; 3. Discharge sleeve; 4. Discharge pipe; 5. Anti-impact bucket; 6. Steel ball; 7. Discharge main pipe; 8. Discharge port. Detailed Implementation

[0012] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0013] like Figure 1 As shown, a mill discharge device includes a discharge ear box 1, a discharge port 8 at the bottom of the discharge ear box 1, a filter 2 snapped onto the discharge port 8, a discharge pipe 4 detachably connected to the bottom of the filter 2, an anti-impact bucket 5 connected to the bottom of the discharge pipe 4, and a discharge main pipe 7 on the side wall of the anti-impact bucket 5.

[0014] A discharge sleeve 3 is fixedly connected between the discharge ear box 1 and the anti-impact bucket 5, and the discharge sleeve 3 is sleeved outside the discharge pipe 4.

[0015] The bottom of the anti-impact bucket 5 is covered with multiple steel balls 6, which can prevent the slurry from abrading the bottom of the anti-impact bucket 5.

[0016] The inner wall of the discharge ear box 1 is lined with rubber. Its advantage is that the rubber lining can delay wear and prevent the slurry from accumulating on the inner wall of the box. The ratio can prevent the slurry from directly impacting the inner wall of the discharge ear box, thus reducing wear.

[0017] In use, the discharge ear box 1 is connected to the discharge end of the mill. After the slurry enters the discharge ear box 1, various impurities in the slurry are filtered by the filter 2. The impurities remain at the bottom of the discharge ear box 1 and are cleaned by the staff regularly. After filtration, the impact force of the slurry is reduced. It passes through the discharge pipe 4 and enters the anti-impact bucket 5. The flow speed of the slurry is slowed down by the buffering effect of the steel balls 6 laid at the bottom of the anti-impact bucket 5. Finally, it enters the next process through the side discharge flat pipe 7.

[0018] During long-term operation, when the discharge pipe 4 is severely worn, a new embedded discharge pipe 4 can be prefabricated in advance. The filter 2 and the discharge pipe 4 are taken out together by the overhead crane. After cleaning the filter 2, it is connected to the new discharge pipe 4 and finally put back in its original position. During this process, due to the function of the discharge sleeve 3, the slurry will also enter the impact bucket 5, and there will be no outflow. Since the discharge pipe 4 is nested, welding is not required, which shortens the replacement time and eliminates the need for shutdown, ensuring long-term stable operation of production.

Claims

1. A mill discharge device, characterized in that: It includes a discharge ear box (1), the bottom of which is provided with a discharge port (8), a filter (2) is attached to the discharge port (8), the bottom of the filter (2) is detachably connected to a discharge pipe (4), the bottom of the discharge pipe (4) is connected to an anti-impact bucket (5), and the side wall of the anti-impact bucket (5) is provided with a discharge main pipe (7).

2. The mill discharge device according to claim 1, characterized in that: A discharge sleeve (3) is fixedly connected between the discharge ear box (1) and the anti-impact bucket (5), and the discharge sleeve (3) is sleeved outside the discharge pipe (4).

3. A mill discharge device according to claim 1 or 2, characterized in that: The bottom of the anti-impact bucket (5) is covered with multiple steel balls (6).

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