Drainage system for deep pits

FIELD: mining industry, particularly to remove water from deep pits, especially in going to underground excavation in upper part of ore body.

SUBSTANCE: system comprises main pipeline, pumping unit with pumping pipe and power supply members. The system is additionally provided with lowering-and-lifting device arranged on pit side and tightening device provided with rope. The first rope end is connected with tubular case in which submersed pumping unit is installed. Submersed end of the case has throughput orifices for liquid passage. Through orifice formed at outlet case end communicates with pumping pipe orifice, which in turn is connected with inlet end of the main pipeline through connection pipe and connection flange. Outlet end of the main pipeline is secured in the lifting-and-lowering device.

EFFECT: reduced material consumption and increased efficiency of water drainage from water-filled deep pits.

2 dwg

 

The invention relates to the mining industry and can be used for dewatering of deep pits, especially in the transition to work underground in the upper part of the ore body.

A known system of underground quarry dewatering containing drainage, water and dewatering wells, located under the bottom of the quarry, centrifugal pump unit with elements for the supply of electricity located in the pumping well discharge pipe which is connected to the discharge pipe and the suction pipe is connected with the suction pipe, buried in the sump (Protection of quarries from the water. Schapranow, Mshasho, Vigoleno. - M.: Nedra, 1976, s-211).

The disadvantage of this system are the high labour and material costs caused by the necessity of drilling a large number of groundwater wells under the bottom of the quarry, with which collates and discharge the water outside the career space.

The closest technical solution is the system of open-pit dewatering, containing the main pipeline connected to the discharge pipe of the pump unit with the elements for the supply of electricity placed on the ledge of a career, the suction nozzle which is connected with the suction pipe, zaglul the military in the sump (ibid, s-211).

The disadvantage of this system is its lack of profitability in terms of water filled deep pits. This is because the need to restore the collapsed benches of the pit (reconstruction berms) to provide access stationary centrifugal pumps to the surface of the liquid associated with high material costs after drainage of deep pits.

The technical problem solved by the invention is the reduction of material costs while ensuring effective drainage in the conditions of water-filled deep pits.

This technical result is achieved by the fact that the drainage system consisting of the main pipeline, the pumping unit to the discharge pipe and with elements for providing power further comprises onboard career trip device and tensioning device with a cable, the end of which is connected with the tube-like capsule which is placed in a submersible pumping unit, with the immersion end of the tubular capsule is made with flow openings for the liquid, and the penetration hole at its output end connected with the hole injection nozzle, which is connected via a connecting pipe and the connecting flange with input the m end of the pipeline the output end of which is fixed to trip the device.

The novelty of this solution is the addition of the drainage system on Board the career tripping, lifting and tensioning device with a cable, the presence of tubular capsule to accommodate a submersible pump unit, and the connections between elements of the system that ensures its efficient operation.

The presence of trip device simplifies installation and dismantling of the discharge pipe and thus leads to lower cost and simplify the construction of the system.

Using the tensioner cable stabilize the installation of the system equipment and the provision of a submersible pump in the system than are provided with the reduction of material costs for the construction of the system and ensure effective drainage of deep pits.

The location of a submersible pump Assembly in a tubular capsule ensures the effectiveness of its work. Due to the implementation of the access holes in the immersion end of the tubular capsule prevents silting pump unit, i.e. tubular capsule performs the function of the intake filter. During the descent of the pumping unit on Board the career tubular capsule protects it from mechanical damage. In addition, water is getting into trubal asnow capsule throughput through holes, washes motor, cooling it, which also ensures efficient operation of the pumping unit and the whole system.

The set of features of this technical solution is not identified from the patent documents and scientific and technical information that is indicative of inventive step of the claimed technical solution.

Figure 1 presents a section of water-filled pit with drainage system, figure 2 - pump unit is placed in the tubular capsule.

The system includes trip unit 1, located on Board of a quarry, which is fixed to the output end of the pipeline 2, the elements to provide electricity as a power source (figure 1, 2 is not specified), armored electric cable 3 is connected to a submersible motor pump unit 4, a tension device 5 cable 6, one end of which is fixed to the drum tensioning device 5, and the other end is fixed on a tubular capsule 7. Inside the tubular capsule 7 is placed submersible pump unit 4. And on the immersion end of the tubular capsule 7 is made of a carrying hole 8 for liquid sampling, and the penetration hole 9 at the outlet end of the tubular capsule 7 is connected with the hole (figure 1, 2 is not shown) discharge pipe 10 submersible is asenovo unit 4. The discharge nozzle 10 through the connecting pipe 11 and the connecting flange 12 is connected with the input end of the pipeline 2.

The mounting system is as follows.

On Board career set trip elevating device type (for example, the unit "Baku" or "Ainmal"35) 1 and tensioning device 5 cable 6 (like a winch). Using the lifting means (e.g., crane) (figure 1, 2 not specified) section of the pipeline 2 is fixed in the clamp trip device 1. The input end of the main pipe 2 through the connecting pipe 11 and the connecting flange 12 connected to the discharge pipe 10 submersible pump unit 4, which is housed in a tubular capsule 7, the end of the cable 6 is attached to the surface of a tubular capsule 7. Then the next section of pipeline 2 is fixed in the next clip trip device 1 and the connecting section of the main pipeline 2 between a clutch. Further, the bottom section of the pipeline 2 is disconnected from the clamp trip device 1 and lowered the slope of the pit. The cycle is repeated.

In the process of descent to stabilize the descent direction and prevent rotation of the main sections of pipe which the wires 2 have a "quickdraw" by means of the cable 6 tensioning device 5. Upon reaching the main pipeline 2 given length corresponding to the depth of the quarry, to the submersible pump unit 4 is connected armored electrical cable 3 with industrial climbers. After that, by means of the cable 6 and the tensioning device 5 in tubular capsule 7 submersible pumping unit 4 is lowered into the water at depth.

The rise of the pump unit 4 and the dismantling of the system of water drainage from the deep pits are performed in reverse order.

The system works as follows. Includes pump unit 4. The water enters the tubular capsule 7 throughput through holes 8, then sucked submersible pumping unit 4 and is pumped through the discharge pipe 10, the connecting pipe 11 and the main pipeline 2 to the surface.

Control operation of the pump unit 4 is carried out using equipment Equipment mounted on Board of the quarry.

The proposed design solution of the system of drainage of deep quarries provides efficient and cost effective drainage abandoned flooded deep pits.

The system of drainage of deep pits containing the main pipeline, the pumping unit to the discharge pipe and with elements for the supply of electricity, characterized in that it is on the further contains onboard career tripping device and tensioner cable the other end of which is connected with the tube-like capsule which is placed in a submersible pumping unit, with the immersion end of the tubular capsule is made with flow openings for the liquid, and the penetration hole at its output end connected with the hole injection nozzle, which is connected via a connecting pipe and the connecting flange to the input end of the pipeline, the output end of which is fixed in the tripping device.



 

Same patents:

FIELD: mining, particularly for drawing-off gases from coal bed simultaneously with water removing from coal bed.

SUBSTANCE: method involves drilling vertical well having cavity from ground surface; communicating vertical well cavity with horizontal drain holes used for gas recovery from coal bed.

EFFECT: provision of access to large underground area from ground surface and uniform coverage thereof, increased efficiency of gas production due to increased drainage system area along the strike of coal bed and due to improved well drilling technique.

27 cl, 11 dwg

FIELD: mining industry.

SUBSTANCE: method includes erection of wall, prior reinforcement of rock massif along extraction track by drilling longitudinal and slanting wells and forcing reinforcing cementing solutions into these wells, destruction and cleaning of rocks under protection of cementing cover, erection of permanent support, following reinforcement of contour-adjacent massif by cementation solutions through wells, drilled perpendicularly to mine axis. Draining wells are additionally drilled with delay through cementing layer having length greater than thickness of reinforced rocks zone, to form a draining layer around reinforced cover.

EFFECT: higher effectiveness.

2 cl, 4 dwg

FIELD: oil and gas extractive industry.

SUBSTANCE: method includes use of device providing for manufacturability of assemblage of casing and drilling columns and concurrent drilling by two columns, provided with independent drives, and drilling, by casing column, of non-stable rock solids performed with frequency no greater than one calculated from formula

where Vmec - mechanical drilling speed, m/min, Fr - friction forces against rotation, Ften - friction forces against linear displacement, R - casing column radius, m, α - angle between vectors of directions of linear and rotating movements.

EFFECT: higher effectiveness, higher productiveness, higher reliability.

2 cl, 5 dwg, 1 ex

The invention relates to the mining industry, in particular to methods and devices for the construction of horizontal and inclined drainage wells in sandy aquifers in a wide range of hydrostatic pressures

The invention relates to the mining industry

The invention relates to the mining industry, in particular to mine settling ponds, where the water clarification and dewatering the resulting precipitate
The invention relates to the mining industry and can be used in underground mining of shallow layers of minerals with a stable, powerful, watered rocks of the main roof

The invention relates to a method of drainage of irrigated fields and can be used when selecting drilling locations of wells intended for water supply

The invention relates to the field of construction, and it is used in the construction of underground excavations near existing and under construction buildings and structures in flooded soils

The invention relates to methods of cleaning sludge ponds concentrators from solids

The invention relates to the field of construction and relates to a method of lowering groundwater levels during construction and operation of underground structures located below the groundwater level

The invention relates to a method of cleaning drains in underground conditions for development of mineral deposits

The invention relates to the mining industry, in particular to mine settling ponds, where the water clarification and dewatering the resulting precipitate

The invention relates to the field of construction, in particular for pumping water from sportowego fence in the construction of bridge piers

The invention relates to methods of combating the effects of emergencies in tunnels, in particular underground

The invention relates to water and sanitation and can be used in the construction of rainwater drainage mainly in built-up areas.

The invention relates to the construction, in particular to the construction of drainage of the veil in cramped conditions with protection of territories, buildings and structures from flooding groundwater

FIELD: mining industry, particularly to remove water from deep pits, especially in going to underground excavation in upper part of ore body.

SUBSTANCE: system comprises main pipeline, pumping unit with pumping pipe and power supply members. The system is additionally provided with lowering-and-lifting device arranged on pit side and tightening device provided with rope. The first rope end is connected with tubular case in which submersed pumping unit is installed. Submersed end of the case has throughput orifices for liquid passage. Through orifice formed at outlet case end communicates with pumping pipe orifice, which in turn is connected with inlet end of the main pipeline through connection pipe and connection flange. Outlet end of the main pipeline is secured in the lifting-and-lowering device.

EFFECT: reduced material consumption and increased efficiency of water drainage from water-filled deep pits.

2 dwg

Up!