RU2649540C2 - Complex of technical means for development of shore ore deposits - Google Patents

Abstract

FIELD: mining engineering.

SUBSTANCE: invention can be used for operation of gold deposits, silver and other mineral resources on the coast of the Far East of the Russian Federation and in other coastal areas. The complex of technical means for mining shore ore deposits includes an offshore mobile platform with a process equipment installed under factory conditions and a mobile nuclear power station. A mining and concentrating complex is installed as process equipment. There are conveyors for feeding ore to the mining and concentrating complex and for disposal of waste in tailings impoundment which connect the deposit with the mining and concentrating complex, and the floating power module c NPP is connected by a cable to the sea mobile platform.

EFFECT: performing operation of small and medium deposits with small working life of raw material, use of complex repeatedly and preservation of environment of coast and water area.

6 cl, 3 dwg

Description

The invention relates to the development of onshore ore deposits and can be used for deposits of gold, silver and other minerals on the coast of Kamchatka, the Kuril Islands and other coastal areas.

The development of mainland deposits by building a mining and processing plant directly at the field is known.

In Kamchatka, this is the Asachinskoye ore gold deposit located 60 km from the coast (Gorny Vestnik Kamchatka. Issue No. 4 (18), 2011, pp. 43-57, B.A. Sheunov. “Asachinskoye deposit: from discovery to the beginning of development ”). The construction of such plants makes sense for large deposits.

However, for small and medium-sized deposits with a life of 7-12 years, this approach is not practical, since on the coast with a lack of transport and energy infrastructure, such construction is very expensive, as well as very expensive and energy supply of imported fuel. The cost of electricity reaches 20 rubles. per kWh or more and in the share of the cost of the final product takes up to 40% and above.

Known methods for the development of offshore hydrocarbon deposits using mobile offshore platforms (RF Patent No. 2392171 dated 06/20/2010, Lavkovsky S.A., Morozov A.V., Ovchinnikov V.F., Subbotin A.A., Edelev O. K. “Method for the development of hydrocarbon deposits on an ultrafine shelf (1.1 -1.3 m)”) and ice-resistant offshore platforms (RF Patent No. 2478057 of 06/17/2011, Aliseichik A.A., Livshits B.R. Ice-resistant drilling complex for the development of a shallow continental shelf and a method of forming an ice-resistant drilling complex for the development of a shallow continent nogo shelf "). These technical solutions are intended only for exploration and production of hydrocarbon, and not ore, raw materials and not for its processing.

The use of offshore platforms for natural gas liquefaction (LNG) plants is also known, which are manufactured in the factory and delivered ready-made to the place of operation near the gas field (Sea News of Russia, No. 1, 2016).

These known technical solutions relate to non-metallic raw materials, and, in addition, the life of such LNG plants is equal to or less than the life of a gas field. After delivery from the manufacturer, the platform is installed stationary at the place of operation and develops its entire resource in one place.

The closest constructively to the proposal under consideration is a marine desalination plant (Collection "Nuclear Power Plants of Low Power: A New Direction of Energy Development", Volume 2, 2015, pp. 139-148, authors: VV Moisov, VV Ryzhkov : “Creation of marine atomic desalination complexes using energy modules with reactor plants”).

Marine desalination plant includes an offshore mobile platform on which desalination units and units for the production of salt, liquid chlorine and other elements, household units, fresh and domestic water transfer systems to product ships, and a floating power module with a nuclear power station are located ( NUCLEAR POWER STATION). A well-known solution eliminates the burden on nature and provides a wide range of regions with fresh water.

However, marine desalination plants are non-metallic raw materials and do not have elements of communication with the shore.

Like the well-known technical solution, the proposed complex includes an offshore mobile platform (IMF) with factory-installed technological equipment and a floating power module with nuclear power plants. The use of a mining and processing complex (GOK) as an equipment, the introduction of conveyors of ore supply from the deposit to the GOK and the removal of waste into the tailing dump is new, and the floating power module with nuclear power plants is connected by a cable to the marine mobile platform.

The proposed technical solution ensures the operation of coastal small and medium deposits of ore mineral raw materials. The entire proposed range of technical equipment can be moved to a new point from one field to another. The use of nuclear power plants in the complex of the proposed technical means allows us to get rid of the fuel dependence of the complex, significantly reduce the cost of energy supply and improve its reliability.

The proposed technical solution is presented in FIG. 1-3.

In FIG. 1 is a diagram of a set of technical means for the development of coastal ore deposits, where

1 - offshore mobile platform (MMP) with a mining and processing complex (GOK);

2 - nuclear power plant (NPP);

3 - electric cable;

4 - conveyors;

5 - field;

6 - tailing dump.

In FIG. 2 presents a diagram of a set of technical means for the development of coastal ore deposits, where

1 - offshore mobile platform (MMP) with a mining and processing complex (GOK);

2 - floating nuclear power plant (PAES);

3 - electric cable;

4 - conveyors;

5 - field;

6 - tailing pond;

7 - PAES release system.

In FIG. 3 presents a diagram of a complex of technical means for the development of coastal ore deposits, where

1 - offshore mobile platform (MMP) with a mining and processing complex (GOK);

2 - floating nuclear power plant (PAES);

3 - electric cable;

4 - conveyors;

5 - field;

6 - tailing pond;

7 - PAES release system;

8 - hydraulic structures, consisting of a set of rigidly interconnected marine mobile platforms.

Depending on the climatic conditions at the location, the mobile NPP can be made in the form of PAES (paragraph 2 of the formula of the proposed technical solution, Fig. 2).

The type of NPP design is also determined by economic indicators. When directly docking a floating nuclear power plant through an unfastening system to an offshore mobile platform with a mine, the platform itself plays the role of protective hydraulic structures (paragraph 3 of the formula for the proposed technical solution).

In case of adverse external influences, protection of the PAES will require additional hydraulic structures adjacent to the marine mobile platform (paragraph 4 of the formula of the proposed technical solution, Fig. 3). Hydraulic structures can be performed as conventional stationary, as well as a set of rigidly interconnected offshore platforms (paragraph 5 of the formula of the proposed technical solution), which, like the main offshore mobile platform, are completely manufactured in the factory and delivered to the place of towing or floating method using special vessels of the "Docvice" type. At the place of placement, these platforms are installed on a prepared base with a rigid bond between each other by filling their internal volume with ballast material. Such platforms, after a specified period of operation and after lightening, can be reused after moving to other onshore fields.

NPP can be performed on a separate offshore platform (paragraph 6 of the formula of the proposed technical solution, Fig. 1) under the most adverse environmental and climatic conditions at the location. Such a platform with nuclear power plants is also fully manufactured at the factory and delivered ready-made to the place of operation, and just like an offshore mobile platform with a mining and processing enterprise, it can be moved to another field after the previous one is depleted.

The proposed technical solution allows the operation of small and medium-sized deposits with a short period of production of raw materials without creating expensive stationary mining and processing plants, provides the ability to use the complex many times, which reduces the unit cost of operating ore deposits. In addition, when moving the complex from one field to another, the ecology of the coast and the water area is preserved.

Claims (6)

1. A set of technical means for developing coastal ore deposits, including an offshore mobile platform with factory-installed technological equipment and a mobile nuclear power plant, characterized in that a mining and processing complex is installed as technological equipment, conveyors have been introduced for supplying ore to the mining and processing complex and for waste disposal in the tailings, connecting the field with the mining and processing complex, and the floating energy module with The nuclear power plant is connected by cable to the marine mobile platform. 2. The complex of technical means for the development of coastal ore deposits according to claim 1, characterized in that the nuclear power plant is made in the form of a floating nuclear power plant. 3. The complex of technical means for the development of onshore ore deposits according to claim 2, characterized in that the floating nuclear power plant is moored to the offshore mobile platform through a docking system. 4. The complex of technical means for the development of onshore ore deposits according to claim 2, characterized in that the floating nuclear power plant is moored through a fastening system to hydraulic structures adjacent to the offshore mobile platform. 5. The complex of technical means for the development of coastal ore deposits according to claim 4, characterized in that the hydraulic structures consist of a set of rigidly interconnected offshore platforms. 6. The complex of technical means for the development of coastal ore deposits according to claim 1, characterized in that the nuclear power plant is located on a separate offshore platform.

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