Dry and wet double-purpose stirring ball mill

Abstract

The invention discloses a dry and wet double-purpose stirring ball mill. The dry and wet double-purpose stirring ball mill comprises a stirring ball mill device and a dry material feeding device, wherein the stirring ball mill device comprises a stirring barrel and a stirring ball mill mechanism; a dry material feeding opening is arranged on the a stirring barrel over, and a dry material discharging opening is formed in the bottom of the stirring barrel; a slurry flowing-in pipe and a slurry flowing-out pipe are arranged on the side wall of the stirring barrel; the stirring ball mill mechanism comprises a driving motor, a stirring shaft, a first helical belt and a second helical belt; the first helical belt is wound on the stirring shaft and is fixed to the stirring shaft into a whole, and the first helical belt is sleeved with the second helical belt; the second helical belt is connected with the stirring shaft through a connecting stick, the first helical belt is a left helical belt, and the second helical belt is a right helical belt; the lower end of the stirring shaft penetrates into the barrel over, and a scraper blade is fixed to the stirring shaft; and the first helical belt and the second helical belt are both located in the stirring barrel. The shearing, friction and grinding efficiency needed by the materials is strengthened, the aim of homogenizing crushing of the materials is achieved, the crushing efficiency is high, and dry and wet materials can be crushed.

Description

technical field [0001] The invention relates to a stirring ball mill, in particular to a dry-wet dual-purpose stirring ball mill. Background technique [0002] Stirring ball mill is a device that makes the grinding medium and medium ball move to produce impact, shear, and grinding, so as to crush materials. It is mainly used for grinding fine-grained materials. Due to the large processing capacity of the stirring ball mill and the ability to process minerals with small particle sizes well, it is widely used in the mineral processing industry. However, with the intensification of the consumption of high-quality mineral resources, poor, fine, and miscellaneous refractory minerals have become the main objects of development and utilization, and the existing stirring ball mills will have the following problems when processing these minerals: (1) due to the existing The stirring ball mill is mainly composed of a stirring shaft and multiple stirring blades or multiple stirring ro...

AI Technical Summary

Problems solved by technology

However, with the intensification of the consumption of high-quality mineral resources, poor, fine, and miscellaneous refractory minerals have become the main objects of development and utilization, and the existing stirring ball mills will have the following problems when processing these minerals: (1) due to the existing The stirring ball mill is mainly composed of a stirring shaft and multiple stirring blades or multiple stirring rods installed on the stirring shaft, and there is a large distance between two adjacent stirring blades or two adjacent stirring rods, so that during the stirring process , due to the difference in velocity gradient between the medium balls, the force between the medium ball and the mineral particles farther away from the stirring blade or stirring rod is reduced, resulting in the inability to achieve homogenization in mineral crushing; (2) single action, low efficiency, The treatment effect on fine-grained materials is poor. Studies have shown that when crushing materials with particle fineness exceeding 200 meshes, the degree of reduction in mineral particle size is very limited, and the energy input by crushing is mostly used to generate new surfaces for mineral particles. (3) The versatility is poor, most of them are dry-type agitating ball mills or wet-type agitating ball mills with a single function. Dry minerals and ore pulp are processed; (4) The mineral feeding is intermittent feeding, and the feeding is discontinuous. Usually, the materials to be crushed are fed into the mixing tank at one time before crushing, and all are poured out after stirring. Stopped start and stop of the mixing ball mill has a certain impact on the service life of the mixing ball mill, and affects the mixing efficiency, and can also cause abnormal crushing due to too little or too much material

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