Deep well karst water mixing filling material mixing device in coastal mines and its working method

Abstract

The invention discloses a deep well karst water mixing and filling material mixing device in a coastal mine and a working method thereof, and relates to the technical field of mineral mining. In order to solve the problem of integration of grinding and mixing, it specifically includes a bottom plate, and a rectangular hole is opened in the middle of the top of the bottom plate. , both sides of the top of the bottom plate are welded and fixedly installed with mounting plates, and one side between the two mounting plates is fixedly installed with a first electric slide rail through bolts. In the present invention, a grinding rod, an arc block, a motor and other devices are arranged, and the grinding rod and the arc block are installed on the rotating rod, so as to ensure the grinding of the bottom ash of the coal-fired power plant and have the effect of stirring and mixing. When the arc block rotates counterclockwise, The bottom ash of the coal-fired power plant will be sandwiched between the arc block and the inner wall of the mixing barrel. During the rotation process, the space between the arc block and the inner wall of the mixing barrel becomes smaller, and the bottom ash of the coal-fired power plant is ground into powder, which has a grinding effect. Including continuous grinding and pulverization during dry powder mixing, to fully improve the grinding effect and avoid waste.

Description

technical field [0001] The invention relates to the technical field of mineral mining, in particular to a mixing device for mixing filling materials with karst water in deep wells in coastal mines and a working method thereof. Background technique [0002] With the continuous exploitation of mineral resources, the shallow land resources are exhausted, and it is difficult to meet the future development needs of the national economy. Building a platform at sea level for mining is technically difficult and expensive. The coastal mines are exploited by extending the underground engineering to the seabed ore body, and the technology is relatively mature. For example, the underground engineering of the Sanshandao Gold Mine and the Jiaojia Gold Mine in Laizhou Bay in my country have been extended to the offshore seabed. The underground rock mass structure and hydrogeological conditions are complex, and a large amount of water resources from the structural fracture zone are often e...

AI Technical Summary

Problems solved by technology

Compared with inland mines, there are three differences in coastal mines: First, fresh water resources in coastal mines are scarce, and groundwater resources can be recycled as ore dressing and filling water after being raised to the surface, which can greatly relieve water pressure; The water exposed by the deep well underground project of Haikuang Mine exists independently of seawater and shallow groundwater. It originates from ancient seawater and is essentially karst water. It dissolves soluble mineral components in underground rock mass and is rich in calcium ions, chloride ions, and sodium ions. , magnesium ions and other components; thirdly, there are potential safety hazards from seawater, and the disturbance of underground mining activities may cause rock mass deformation and damage, which may lead to devastating seawater well flooding accidents

[0003] Tailings cemented filling technology has been proved to be a good means to control the deformation of surrounding rocks. It is to transport the filling slurry made by mixing tailings, cementitious materials and mixing water to the underground mined-out area, but tailings cemented filling There are many steps in the process of mixing materials. In the early stage of mixing, some raw materials need to be mixed, stirred, ground, and sieved. The traditional stirring device does not have the effect of stirring, grinding, and sieving at the same time. The separate sieving process takes a long time. time, and the screening is mostly carried out by mechanical equipment for vibrating screening, the cost is high, so a stirring device specially made for tailings rubber materials is needed

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