Method for placer and technogenic mineral deposit development

FIELD: mining industry, particularly to develop watered placer deposits and technological mineral deposits under permanent negative temperatures of ambient air.

SUBSTANCE: method involves performing preparation and production works, mineral processing and refuse stacking operations. To implement above method dam is built around mining equipment and deposit to be developed prior to air temperature reduction to negative value; installing sled-mounted hangar having transparent heat insulated roof over the dam and performing all above mentioned works and operations inside the hangar.

EFFECT: increased efficiency of production and processing equipment.

2 cl, 1 ex

 

The invention relates to the mining industry, in particular to the development of irrigated alluvial deposits and man-made accumulations of mineral raw materials in conditions of prolonged freezing temperatures.

There is a method of developing a flooded alluvial deposits and man-made accumulations of mineral raw materials includes preparatory and mining, enrichment and dumping (Leshkov V.G. Development of placer deposits. M.: Nedra, 1985. - Istanbul, p. 378-488).

However, when applying this method, there are several negative factors, such as the impossibility of its application in the development of irrigated alluvial deposits of minerals and man-made accumulations of mineral raw materials in conditions of negative temperatures, which dramatically reduces the annual performance of the mining and beneficiation equipment.

The closest together of existing signs and the achieved result is a way to develop irrigated alluvial deposits and man-made accumulations of mineral raw materials, through dredging, including the preparation of career, actually development, enrichment, maintaining ice-free stretch of water for the workers movement of mining equipment, hydraulic, hydraulic packing of the soil (Machines is for dredging excavation. Skundin BM, etc. M.: stroiizdat, 1995, p.14-21).

However, in the known method development in the presence of freeboard main difficulties arise in connection with the formation of the frozen crust of the soil, which forms a periodically collapsing roofs, slipping into the zone of protozanova violates the mining process and may damage the frame of the dredge. Such visors are invalid and for reasons of safety. Also, when the frozen ground above 20-50 cm decreases the efficiency of mining dredges. It also requires the destruction of the ice cover, removing the ice from the lane and removing it is a time - consuming operation, which increases operating costs. Pipeline dredges are fully protected from freezing only in working condition.

The main objective of the invention is to provide a method for development of alluvial deposits and man-made accumulations of minerals in conditions of prolonged freezing temperatures, which will help to improve the performance of mining equipment and increase the duration of the mining season.

To solve the problem in the way of development of mineral raw materials in conditions of prolonged freezing temperatures, including career preparation actually developed the ku, enrichment, hydraulic, hydraulic packing, before the onset of freezing temperatures make the building of the dam around mining equipment and prepared for mining stocks, and the device on her hangar on the sled with a transparent insulating the roof, after the completion of the construction of mining and processing operation, as well as dumping on winter produce inside the hangar, in the summer transparent hangar set in the contour of the land allocation, and early frosts set in opened in summer stock. In the process of mining, enrichment activities and dumping attach to the surface of the prepared stock dark color, which provides better absorption and heating of the surface of the prepared inventory and air inside the hangar.

The efficiency of the mining and mineral processing equipment in the development of irrigated alluvial deposits of minerals and man-made accumulations of mineral raw materials under conditions of continuous negative air temperatures is achieved by creating a protected space inside the transparent hangar, from the influence of external and temperature effects, the processes of mining and processing operations, as well as dumping of produce at normal the main temperatures, ensure effective operation of the equipment and during the flush season.

To ensure the required quality of the air inside the hangar possible ventilation space by known methods.

The method is as follows.

Placer gold Deposit being developed mnogochipovoj mini dredge.

In the summer, carry out preparatory work: the opening of the reservoir Sands on the length of the front work Draghi during freezing temperatures, the construction of the dam. In the autumn period on the dam set hangar on the sled with a transparent insulating roof after the installation is complete mining and concentrating works, as well as dumping during the period of negative temperatures produced inside transparent hangar.

Thus, the proposed underwater method development placers in comparison with the prototype allows to increase the annual capacity of mining equipment in the development of irrigated alluvial deposits of minerals and man-made accumulations of mineral raw materials under conditions of continuous negative air temperatures.

Example

In the summer, carry out preparatory work: the opening of the reservoir Sands on the duration of work Draghi during the period of negative temperatures. Around the prepared inventory build dps is Tina, the height and width to prevent freezing of the sides of the reserves, and on the surface to build a hangar on the sled with a transparent insulating roof. After you give the surface of the prepared stock dark color. With the onset of negative temperatures mining equipment housed in the hangar, where he continued his work during the entire period of negative temperatures. In the spring, with the onset of positive temperatures hangar is dragged ahead of equipment at a distance, which allows mining stocks prepared in the summer and spend the dissection and preparation of reserves for testing in the period of low temperatures and hangar installed in the contours of the land allocation, use as a greenhouse. Further around the prepared inventory built a dam and in the autumn before the onset of freezing temperatures set hangar.

Advantages of the method:

- prevents the formation of the frozen crust of the soil, which forms a periodically collapsing canopies;

is not formed ice;

- no solidification of the slurry pipeline dredges.

1. The method of mining of alluvial deposits and man-made accumulations of mineral raw materials, including preparatory and mining, enrichment and dumping, distinguish the different topics that before the onset of freezing temperatures make the building of the dam around mining equipment and prepared for testing in the winter of reserves and places hangar on the sled with a transparent insulating the roof, after the completion of the construction of mining and processing operation, as well as dumping during the period of negative temperatures produced inside transparent hangar.

2. The method of mining of alluvial deposits and man-made accumulations of mineral raw materials according to claim 1, characterized in that after installing the hangar give the surface of the prepared stock dark color, which provides the best light absorbing and heating of the surface of the prepared inventory and air inside the hangar.



 

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