RU1772307C - Hydraulic mine dump building method - Google Patents

Abstract

Usage: in hydraulic engineering, for example, in the construction of hydraulic dumps and tailings of processing plants. SUMMARY OF THE INVENTION: When erecting a hydraulic dump in front of the washing process, an annular screen is installed in the core area of the hydraulic dump with a height equal to the height of the ditching dam, followed by the placement of ash and slag waste from the cogeneration plant of the cogeneration plant. After the water is discharged from the settling pond, the annular screen is destroyed. 1 silt.

Description

The invention relates to hydraulic engineering construction and can be used in the construction of hydraulic dumps and tailings of processing plants, mining and processing plants, etc.

The purpose of the invention is to increase the efficiency of compaction and accelerate the consolidation of the core area of the hydraulic dump

The drawing shows a cross section of a hydraulic dump during the washing process, where 1 is a ditching dam, 2 is a thrust prism, 3 is a transition zone, 4 is a core zone, 5 is an annular screen, 6 is ash and slag waste from a thermal power plant, and 7 is a settling pond.

A method of erecting a hydraulic dump is carried out as follows.

After the construction of the embankment dams 1, an annular screen 5 is installed in the zone of the core 4, then ash and slag waste from the CHPP 6 is placed inside the annular screen 5, after which the pulp is washed into the body of the hydraulic dump. In the process of fractionation of soil particles by size, a persistent prism 2, transition zone 3, core zone 4 and settling tank 7 are formed. At the end of the process of washing the hydraulic dump, water is discharged from the settling tank 7 and the ring screen 5 is destroyed at the end of the water discharge.

When finely dispersed particles of the hydraulic dump dump core enter the pore space of ash and slag waste as a result of absorption of the free water supplied with these particles, the process of cementing ash and slag waste begins and simultaneously the process of sucking free water from the surrounding ash and slag waste of the hydraulic dump dump zone. sealing efficiency.

Example. Stripping operations in a coal field are carried out using hydromechanization means. The capacity of the plants on the pulp is 7.5 million m per year, at Т: Ж 1: 5. Dumping is carried out in an annular dump. The height of the embankment dams is 15 m. The annular screen is made of polymers installed in the core area of the hydraulic dump.

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Its filling with ash and slag waste from the CHPP is carried out by means of a conveyor and the building is done as it is filled. At the end of the washing up of the hydraulic dump and the discharge of water from the settling pond, the screen is destroyed by explosive devices located in the walls of the annular screen.

Claims (1)

SUMMARY OF THE INVENTION A method for erecting a hydraulic dump, including the construction of dumping ditches, washing the soil into the body of the hydraulic dump with the formation of a thrust prism, transition of a core zone, a core zone and a settling pond with subsequent discharge of water from it, characterized in that, in order to increase the compaction efficiency and accelerate the consolidation of the hydraulic dump area, an annular screen with a height equal to the height of the collapse dam is installed in the zone of the hydraulic dump dump before the washing process. followed by the placement of ash and slag waste from the heat and power plant inside it, and after the water is discharged from the settling pond, the annular screen is destroyed.