Automatic collection device and method for waste steel balls and sundries in discharged materials of ball mill

Abstract

The invention relates to an automatic collection device and method for waste steel balls and sundries in discharged materials of a ball mill. The collection device comprises a ball mill barrel, a ball mill end cap and a ball mill discharging barrel; and the collecting device is characterized in that a taper drum sieve is fixedly connected to a discharging opening of the ball mill discharging barrel, an ore slurry receiving box is installed under the taper drum sieve, and a waste steel ball and sundry collecting box is installed at an outlet of the taper drum sieve, a plurality of screen holes are evenly distributed on the taper drum sieve, a spiral plate is welded to the inner side wall of the taper drum sieve, and the rotating direction of the spiral plate is opposite to the rotating direction of the ball mill; and a washing water pipe is installed at the middle axis of the taper drum sieve, and a row of thin holes are drilled in the washing water pipe. By means of the automatic collection device and method for the waste steel balls and the sundries in the discharged materials of the ball mill, dressing materials are purified, and the indicators in beneficiation can be effectively improved; and meanwhile, the collected waste steel balls can be recycled for machining and using, and the level of resources utilization is improved.

Description

technical field [0001] The invention relates to a device and method for automatically collecting waste steel balls and sundries in the discharge of a ball mill, and belongs to the technical field of mineral processing. Background technique [0002] Grinding is a necessary process for metal and non-metal mine concentrators. After crushing and grinding, the ore reaches the required particle size before entering the separation process. Therefore, ore grinding is to prepare for the separation operation and provide clean materials with qualified particle size for the separation operation. The quality of the discharge of the grinding machine directly affects the technical and economic indicators of the separation operation. During the grinding operation, a certain amount of grinding medium, such as steel balls, steel rods, etc., needs to be added to the mill barrel, and the ore is added to a certain concentration after adding water to the mill for grinding. The ore is in the rotat...

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Problems solved by technology

During the grinding operation, a certain amount of grinding medium, such as steel balls, steel rods, etc., needs to be added to the mill barrel, and the ore is added to a certain concentration after adding water to the mill for grinding. The ore is in the rotating mill barrel The body and the grinding medium undergo intense impact, grinding and stripping, and gradually become thinner. When the selected particle size is reached, it is discharged from the mill cylinder. While grinding, the steel balls are constantly grinding or damaged. The final steel balls will be discharged out of the mill cylinder together with the ground ore and enter the next beneficiation operation. At the same time, the pine wood and other sundries that have entered the ore during the mining process will also be discharged out of the grinding mill with the ore pulp after grinding. The machine barrel enters the next mineral processing operation. If these scrap steel balls and other sundries are not removed, it will have a great impact on the downstream mineral processing operation.

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