Ultra-deep large-hole-diameter direct drainage device

Abstract

The utility model relates to an ultra-deep large hole diameter direct drainage device which comprises a vertical drainage hole, a water sump, a drainage hole connecting lane, a cross-cut lane, a ventilation shaft shaft and a ventilation shaft, a concrete layer is arranged between the inner wall of the vertical drainage hole and the outer wall of a drainage pipe, the upper end of the drainage pipe extends upwards to the ground surface, and the lower end of the drainage pipe is communicated with the water outlet end of a plunger type drainage pump. The plunger type drainage pump is installed in a water pump room at the bottom of the well, the water inlet end of the plunger type drainage pump is communicated with the water sump, the water sump is communicated with the drainage hole connecting lane through a pipeline, the drainage hole connecting lane is communicated with the cross-cut lane, the cross-cut lane is communicated with a vertically-arranged ventilation shaft, and the upper end of the ventilation shaft upwards extends to the ground surface. A ventilation shaft is arranged at an outlet of the ground surface of the ventilation shaft cylinder. Water in the mine is gathered through the drainage hole connecting lane and conveyed into the water sump through the pipeline, the plunger type drainage pump conveys the water in the water sump to the ground surface through the drainage pipeline, the water in the mine is drained in time, and the safety of mine mining is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to mine drainage technical field, concretely relates to a superdeep large aperture straight drainage device. BACKGROUND

[0002] In the process of underground mining, there is often water seepage or gushing phenomenon in the mine, and the water for production in the mine also flows into the mine lane, which makes the water accumulation in the mine. If the mine water is not discharged in time, it will accumulate more and more, which will affect the normal production of the mine.

[0003] According to the calculation of the safety facility drainage system, when the mining reaches the superdeep level of-1480m, the normal gushing water quantity in the mine is 8700m3 / d, the maximum gushing water quantity is 17400m3 / d, and the backwater of filling and in-pit rock drilling water is about 1600m3 / d. Therefore, how to discharge the mine water in the superdeep mine in time becomes a problem to be solved. CONTENT OF THE UTILITY MODEL

[0004] The utility model provides a superdeep large aperture straight drainage device for the prior art problem.

[0005] The utility model discloses a superdeep large aperture straight drainage device, including vertical drainage hole, water warehouse, drainage hole connection lane, stone gate lane, ventilation shaft well and ventilation shaft, the inner wall between vertical drainage hole and drainage pipe outer wall is equipped with the concrete layer, the upper end of drainage pipe extends to the ground, the lower end of drainage pipe and the water outlet of plunger type drainage pump are linked, and the plunger type drainage pump is installed in the water pump house of well bottom.

[0006] On the basis of the above technical scheme, the utility model can also make the following improvements:

[0007] Preferably, the ventilation shaft is provided with a hoist room.

[0008] Preferably, the drainage pipe is a metal pipe, and the inner and outer walls of the drainage pipe are provided with a corrosion-resistant layer.

[0009] Preferably, the thickness of the corrosion-resistant layer is 0.3mm-0.5mm.

[0010] Preferably, the drainage pipe includes an upper drainage pipe and a lower drainage pipe, the outer diameters of the upper drainage pipe and the lower drainage pipe are the same, the wall thickness of the upper drainage pipe is less than that of the lower drainage pipe, and the upper drainage pipe is connected to the lower drainage pipe through a transition joint.

[0011] Preferably, the drain pipe is an N80 steel grade oil casing.

[0012] Preferably, a plurality of the plunger type drainage pumps are provided, and the plurality of the plunger type drainage pumps are arranged in parallel.

[0013] Preferably, the discharge flow of the plunger type drainage pump is 150 m 3 / h, and the discharge pressure is 16 MPa.

[0014] Preferably, the upper end of the drain pipe is provided with an openable and closable safety cover plate.

[0015] Preferably, the anticorrosive layer is a fused epoxy powder coating.

[0016] The beneficial effects of the utility model are as follows: water in the mine is gathered through the drainage hole, and then is transported into the water sump through the pipeline, and the plunger type drainage pump transports the water in the water sump to the ground surface through the drainage pipeline, because the diameter of the drainage pipe is large, the water in the mine can be discharged in time, the case of water accumulation in the mine is avoided, the normal production of the mine is ensured, and the safety of the mine exploitation is ensured. Fresh air is provided for the mine through the ventilation shaft well, and dirty air is discharged, the air quality under the mine is ensured, and a good working environment is maintained, because the crosscut is communicated with the drainage hole, and the ventilation shaft well is communicated with the crosscut, therefore, the moisture generated in the drainage process can be discharged better through the crosscut and the ventilation shaft well, the mine is kept dry, and the safety of the underground operation is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The utility model is a structural schematic view.

[0018] The signs are recorded as follows: 1, vertical drainage hole; 2, water sump; 3, drainage hole crosscut; 4, crosscut; 5, ventilation shaft well; 6, ventilation shaft; 7, hoist room. DETAILED DESCRIPTION

[0019] The principles and characteristics of the utility model are described below in combination with the drawings, and the examples are only used for explaining the utility model, and are not used for limiting the range of the utility model.

[0020] As Figure 1The utility model discloses a kind of super-deep large-aperture straight drainage devices, including vertical drainage hole 1, water sump 2, drainage hole gangway 3, stone door lane 4, ventilation shaft shaft 5 and ventilation shaft 6, concrete layer is equipped between the inner wall of vertical drainage hole 1 and the outer wall of drain pipe, when construction, after installing drain pipe in vertical drainage hole 1, cement slurry is filled in the space between drain pipe and vertical drainage hole 1, cement slurry forms concrete layer after solidification, ensure the firmness of drain pipe fixed, the upper end of drain pipe extends to ground surface, the lower end of drain pipe is communicated with the water outlet end of plunger type drainage pump, the discharge flow of plunger type drainage pump is 150m 3 / h, discharge pressure 16MPa, ensure that it has enough flow and drainage pressure, ensure that water is transported to ground surface, plunger type drainage pump is installed in water pump house at well bottom, wherein well bottom is underground-1480m, the water inlet end of plunger type drainage pump is communicated with water sump 2, water sump 2 is communicated with drainage hole gangway 3 by pipeline and valve is equipped on pipeline, valve can control the direction and flow of water flow, ensure the flexibility and reliability of system, drainage hole gangway 3 is equipped with multiple, can concentrate groundwater in different regions to water sump 2, improve overall drainage efficiency, further, water sump 2 is usually arranged at low-lying place of mine shaft, to facilitate collection and storage of groundwater and gushing water from different regions, improve drainage effect, drainage hole gangway 3 is communicated with stone door lane 4, so that water in stone door lane 4 is gathered in drainage hole gangway 3, drainage hole gangway 3 transports water to water sump 2, realizes that water is discharged in time;Stone door lane 4 is usually used as main transport passage in mine shaft, for transporting ore, coal, material and equipment etc., stone door lane 4 is communicated with vertically arranged ventilation shaft shaft 5, the upper end of ventilation shaft shaft 5 extends to ground surface, ventilation shaft 6 is arranged at the outlet of ventilation shaft shaft 5 on ground surface, promote air circulation in stone door lane 4 roadway, improve ventilation condition in mine shaft, especially, humidity generated during drainage process can be better discharged through stone door lane 4 and ventilation shaft shaft 5, keep underground dry, improve the safety of underground operation.

[0021] Further, hoist room 7 is installed above ventilation shaft 6.Under the condition of meeting the function of ventilation, setting hoist room 7 can realize the vertical transportation of material or personnel, increase the flexibility of mine hoisting system.

[0022] Further, drain pipe is metal pipe, in the embodiment, drain pipe is N80 steel grade petroleum casing pipe, N80 steel grade petroleum casing pipe has higher yield strength, good toughness and fatigue resistance, can bear larger internal and external pressure, so as to meet the conveying requirement of super-deep mine.

[0023] Further, the inner and outer walls of the drain pipe are provided with anticorrosive layers, the thickness of the anticorrosive layers is 0.3mm-0.5mm, the anticorrosive layers are fused epoxy powder coatings, the fused epoxy powder coatings have strong adhesive capacity, can improve the rust-proof performance of the drain pipe for a long time, ensure that water can be normally transported, improve the service life of the drain pipe, and reduce use and maintenance costs.

[0024] In the embodiment, the drain pipe comprises an upper drain pipe and a lower drain pipe, the outer diameters of the upper drain pipe and the lower drain pipe are the same, the wall thickness of the upper drain pipe is smaller than that of the lower drain pipe, the upper drain pipe is connected with the lower drain pipe through a transition joint, specifically, the outer diameters of the upper drain pipe and the lower drain pipe are both φ406mm, the external pressure received by the upper drain pipe is smaller, and the wall thickness of the upper drain pipe is 18mm, the external pressure received by the lower drain pipe is larger, and the wall thickness of the lower drain pipe is 25mm, which can guarantee the drainage requirement, save the pipeline cost, and reduce the construction difficulty.

[0025] Further, the plunger type drain pumps are provided in plurality, and the plurality of plunger type drain pumps are arranged in parallel, so as to improve the drainage capacity and the drainage efficiency. In the embodiment, the plunger type drain pumps are provided in eight, of which two are reserved standby plunger type drain pumps, so as to avoid the influence on the mine drainage when the plunger type drain pumps are repaired.

[0026] In the embodiment, specifically, the upper end of the drain pipe is provided with an openable and closable safety cover plate. The safety cover plate can prevent sundries from entering the drain pipe, avoid the risk of sundries falling, and further improve the safety in use.

[0027] The above merely describes the preferred embodiments of the utility model and is not intended to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A deep, large-diameter direct drainage device, characterized in that, The structure includes a vertical drainage hole (1), a water tank (2), a drainage hole connecting lane (3), a stone gate lane (4), a ventilation shaft (5), and a ventilation shaft (6). A concrete layer is provided between the inner wall of the vertical drainage hole (1) and the outer wall of the drainage pipe. The upper end of the drainage pipe extends upward to the ground surface. The lower end of the drainage pipe is connected to the outlet end of a plunger-type drainage pump. The plunger-type drainage pump is installed in a pump house at the bottom of the well. The inlet end of the plunger-type drainage pump is connected to the water tank (2). The water tank (2) is connected to the drainage hole connecting lane (3) through a pipe. The drainage hole connecting lane (3) is connected to the stone gate lane (4). The stone gate lane (4) is connected to the vertically arranged ventilation shaft (5). The upper end of the ventilation shaft (5) extends upward to the ground surface. The ventilation shaft (5) has the ventilation shaft (6) at its outlet on the ground surface.

2. The ultra-deep, large-diameter direct drainage device according to claim 1, characterized in that, A hoisting room (7) is installed on the ventilation shaft (6).

3. The ultra-deep, large-diameter direct drainage device according to claim 1, characterized in that, The drain pipe is a metal pipe, and both its inner and outer walls are provided with anti-corrosion layers.

4. The ultra-deep, large-diameter direct drainage device according to claim 3, characterized in that, The thickness of the anti-corrosion layer is 0.3mm-0.5mm.

5. The ultra-deep, large-diameter direct drainage device according to claim 3 or 4, characterized in that, The drain pipe includes an upper drain pipe and a lower drain pipe. The upper drain pipe and the lower drain pipe have the same outer diameter. The wall thickness of the upper drain pipe is less than that of the lower drain pipe. The upper drain pipe is connected to the lower drain pipe through a transition joint.

6. The ultra-deep, large-diameter direct drainage device according to claim 5, characterized in that, The drainage pipe is an N80 grade oil casing.

7. The ultra-deep, large-diameter direct drainage device according to claim 1, characterized in that, The plunger-type drainage pump is provided in multiple units, and the multiple plunger-type drainage pumps are arranged in parallel.

8. The ultra-deep, large-diameter direct drainage device according to claim 1 or 7, characterized in that, The discharge flow rate of the plunger-type drainage pump is 150 m³ / h. 3 / h, discharge pressure 16MPa.

9. The ultra-deep, large-diameter direct drainage device according to claim 1, characterized in that, The upper end of the drain pipe is equipped with an openable and closable safety cover.

10. The ultra-deep, large-diameter direct drainage device according to claim 3 or 4, characterized in that, The anti-corrosion layer is a fused epoxy powder coating.

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