Open pit coal mine deep hole blasting drainage device
By using a piston reciprocating motion design in the deep-hole blasting drainage device, the problem of filter screen clogging is solved, achieving effective filtration of accumulated water and cleaning of the filter screen, ensuring the continuity and efficiency of drainage operations.
Patent Information
- Application Number
- CN202422987102.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-05
AI Technical Summary
In existing technologies, the filter screen of deep-hole blasting drainage devices is easily clogged by impurities such as mud and sand, which affects the normal operation of drainage.
A device comprising a drain cylinder, a piston, and a drive mechanism was designed. The piston reciprocates within the drain cylinder to achieve the suction and reverse flushing of accumulated water, thus preventing filter clogging.
It effectively filters sediment from accumulated water, prevents pipe and pump blockages, ensures continuous drainage operations, and keeps the filter screen clean through backflushing.
Smart Images
Figure CN223536400U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of deep-hole blasting drainage, and relates to a deep-hole blasting drainage device for open-pit coal mines. Background Technology
[0002] During open-pit deep-hole blasting operations, deep holes need to be drilled in the rock mass or soil layer. During drilling, groundwater from the rock mass or soil layer can seep into the deep hole. To ensure the smooth progress of subsequent blasting operations, the accumulated water inside the deep hole needs to be drained to lower the water level and pressure, thereby reducing the adverse effects of the accumulated water on the blasting effect.
[0003] In existing technologies, drainage pipes are typically lowered into deep holes, and pumps are used to extract the water from inside. To prevent silt and other sediments in the water from clogging the pipes and damaging equipment, existing technologies usually include filters in the drainage pipes to remove solid sediments. However, during prolonged drainage operations, if the solid sediment content in the water is high, silt and other impurities can accumulate on the filter, clogging it and hindering the drainage process. Therefore, to address the problem of existing deep-hole drainage structures failing to effectively prevent filter clogging, this invention discloses a deep-hole blasting drainage device for open-pit coal mines. Utility Model Content
[0004] The purpose of this utility model is to provide a deep-hole blasting drainage device for open-pit coal mines, which can filter solid sediments in the accumulated water during the drainage process to avoid clogging of pipelines and equipment, and can also backwash the filter screen to prevent clogging.
[0005] This utility model is achieved through the following technical solution:
[0006] A deep-hole blasting drainage device for open-pit coal mines includes a drainage cylinder with a drainage chamber inside. A piston is slidably mounted inside the drainage chamber along the axial direction of the drainage cylinder. A driving device is mounted on the top of the piston to drive the piston to reciprocate axially. Water suction holes are provided on the bottom and sidewalls of the drainage chamber, and filter screens are installed inside the water suction holes. A first drainage pipe and a second drainage pipe are respectively connected to the bottom of the sidewall and the drainage elevation line of the sidewall of the drainage chamber. Both the first drainage pipe and the second drainage pipe are connected to a water pump.
[0007] The drainage cylinder is lowered into the deep hole. A drive mechanism moves the piston axially back and forth within the drainage chamber. As the piston moves upward, it draws water from the deep hole through the suction hole into the drainage chamber. Simultaneously, a water pump starts, drawing water from the drainage chamber to the outside of the deep hole through the first and second drainage pipes, thus draining the deep hole used for blasting. When the piston moves downward, it forces the remaining water in the drainage chamber to the outside. This outward flow of water also washes away sediment trapped on the filter screen installed inside the suction hole, preventing excessive sediment buildup and blockage of the suction hole.
[0008] To better realize this utility model, further, at least one stabilizing member that fits against the inner wall of the deep hole is provided on the outer side of the top of the side wall of the drainage cylinder.
[0009] To better realize this utility model, the stabilizing component further includes a stabilizing annular airbag, which is connected to an air pump.
[0010] To better realize this utility model, the top of the drainage cylinder is provided with a lifting lug, which is connected to a cable.
[0011] To better realize this utility model, the driving device further includes a drive motor, a drive cam, a drive linkage, and an elastic reset member. The top of the drain cylinder is coaxially slidably provided with a drive linkage. The bottom end of the drive linkage extends into the interior of the drain cavity and is connected to the top end of the piston. The top end of the drive linkage abuts against the rim of the drive cam. An elastic reset member is sleeved on the outside of the drive linkage. The axle of the drive cam is connected to the output shaft of the drive motor.
[0012] To better realize this utility model, the elastic reset component further includes a reset spring, a stepped hole is provided at the top of the drain cylinder, a driving link is slidably arranged inside the stepped hole, a reset spring is sleeved on the outside of the driving link, and the bottom end of the reset spring abuts against the stepped surface of the stepped hole.
[0013] To better realize this utility model, the drive motor is further provided with a waterproof cover.
[0014] To better realize this utility model, a solenoid valve is further provided on both the first drain pipe and the second drain pipe.
[0015] Compared with the prior art, this utility model has the following advantages and beneficial effects:
[0016] This invention uses a driving device to move a piston up and down reciprocally inside the drainage chamber. When the piston moves upward, it draws water from the deep hole into the drainage chamber through the suction hole, and then uses a water pump to draw water from the drainage chamber to drain the deep hole. At the same time, the filter screen inside the suction hole filters out sediment and other impurities in the water, effectively preventing blockages in pipes and the water pump. When the piston moves downward, it reverses the flow of water into the deep hole, and the reverse water flow washes the filter screen, preventing excessive sediment buildup and blockages. Attached Figure Description
[0017] Figure 1 A schematic diagram of a deep-hole blasting drainage device in an open-pit coal mine.
[0018] Figure 2 This is a schematic diagram of the piston moving upwards;
[0019] Figure 3 This is a schematic diagram of the drive device.
[0020] Wherein: 1-Drainage cylinder; 2-Drainage chamber; 3-Piston; 4-Drive device; 5-Water suction hole; 6-Filter screen; 7-Stabilizing annular airbag; 8-Air pump; 9-Lifting lug; 41-Drive motor; 42-Drive cam; 43-Drive connecting rod; 44-Elastic reset component; 45-Waterproof cover; 100-First drain pipe; 200-Second drain pipe; 300-Water pump. Detailed Implementation
[0021] The following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.
[0022] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, unless otherwise expressly indicated by the present invention, the singular form is intended to include the plural form as well. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0023] For ease of description, the words "up," "down," "left," and "right" appearing in this utility model only indicate that they are consistent with the up, down, left, and right directions of the accompanying drawings themselves, and do not limit the structure. They are merely for the purpose of facilitating the description of this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0024] Terminology Explanation: The terms "installation," "connection," "linking," and "fixing" in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction relationship between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0025] Example 1:
[0026] This embodiment describes a deep-hole blasting drainage device for open-pit coal mines, such as... Figures 1-3 As shown, the system includes a drain cylinder 1, inside which is a drain chamber 2. A piston 3 is slidably mounted inside the drain chamber 2 along the axial direction of the drain cylinder 1. A drive device 4 is mounted on the top of the piston 3 to drive its axial reciprocating movement. Suction holes 5 are provided on the bottom and side walls of the drain chamber 2, and filter screens 6 are installed inside the suction holes 5. A first drain pipe 100 and a second drain pipe 200 are respectively connected to the bottom of the side wall and the drainage elevation line of the side wall of the drain chamber 2. Both the first drain pipe 100 and the second drain pipe 200 are connected to a water pump 300. Solenoid valves are installed on both the first drain pipe 100 and the second drain pipe 200.
[0027] During the initial and middle stages of drainage, when there is a significant amount of water accumulated inside the deep hole, the solenoid valve on the first drain pipe 100 is closed while the solenoid valve on the second drain pipe 200 is open. That is, during the initial and middle stages of drainage, the first drain pipe 100 is in a cut-off state, while the second drain pipe 200 is in a flowing state. The piston 3 is driven by the drive device 4 to move axially back and forth inside the drain chamber 2. Figure 2 As shown, when piston 3 moves upward, it generates a suction force to draw water from the deep hole into the drainage chamber 2 through suction hole 5. Simultaneously, the filter screen 6 inside suction hole 5 filters and traps sediment mixed in the water, reducing the sediment content transported through the first drainage pipe 100 and the second drainage pipe 200, effectively preventing pipe blockage. After the water enters the drainage chamber 2, the water level gradually rises to the drainage elevation line. At this point, water pump 300 can then pump the water out of the drainage chamber 2 through the second drainage pipe 200 to achieve drainage of the deep hole. Figure 1 As shown, when piston 3 moves downward, it forces out the residual water inside drainage chamber 2, causing the water to flow backward into the deep hole. This directional flow of water washes away the sediment trapped on filter screen 6, preventing it from accumulating and clogging the screen. Driven by the drive device 4, piston 3 moves up and down repeatedly, thus repeating the process of pumping out water and pumping it backward.
[0028] In the later stages of drainage, when the water inside the deep hole is about to be completely pumped out, the solenoid valves on both the first drain pipe 100 and the second drain pipe 200 are opened. That is, both the first drain pipe 100 and the second drain pipe 200 are in a flowing state before and after drainage. The water pump 300 simultaneously pumps the water inside the drainage chamber 2 through the first drain pipe 100 and the second drain pipe 200, preventing a large accumulation of water inside the drainage chamber 2, thus ensuring that the water inside the deep hole is essentially completely pumped out.
[0029] Example 2:
[0030] An improved version of Embodiment 1 is a deep-hole blasting drainage device for open-pit coal mines. At least one stabilizing element is provided on the outer side of the top of the drainage cylinder 1, which fits against the inner wall of the deep hole. By providing the stabilizing element, the drainage cylinder 1 can remain stable during the pumping of accumulated water.
[0031] Furthermore, such as Figure 1 As shown, the stabilizing component includes a stabilizing annular airbag 7, which is connected to an air pump 8. During the lowering of the drainage cylinder 1, the stabilizing annular airbag 7 is in a deflated state to avoid affecting the normal lowering of the drainage cylinder 1. When the drainage cylinder 1 is lowered to the specified depth in the deep hole, the air pump 8 inflates the stabilizing annular airbag 7. After inflating, the stabilizing annular airbag 7 makes tight contact with the hole wall of the deep hole, thus stabilizing the drainage cylinder 1. At the same time, the stabilizing annular airbag 7 seals the inside of the deep hole to provide sufficient negative pressure when pumping out accumulated water.
[0032] The other parts of this embodiment are the same as those in Embodiment 1, so they will not be described again.
[0033] Example 3:
[0034] An improved deep-hole blasting drainage device for open-pit coal mines, based on Embodiment 1 or 2, such as... Figure 1 As shown, the top of the drainage cylinder 1 is provided with a lifting lug 9, which is connected to a cable. The cable is connected to a winch, hoisting equipment, etc. outside the deep hole, so that the drainage cylinder 1 can be easily lifted by the cable to conveniently lower the drainage cylinder 1 into the deep hole or take it out from the deep hole.
[0035] The other parts of this embodiment are the same as those in Embodiment 1 or 2, so they will not be described again.
[0036] Example 4:
[0037] An improved deep-hole blasting drainage device for open-pit coal mines, based on any one of Examples 1-3, such as... Figure 3As shown, the driving device 4 includes a drive motor 41, a drive cam 42, a drive connecting rod 43, and an elastic reset member 44. The top of the drain cylinder 1 is coaxially slidably provided with the drive connecting rod 43. The bottom end of the drive connecting rod 43 extends into the interior of the drain cavity 2 and is connected to the top end of the piston 3. The top end of the drive connecting rod 43 abuts against the rim of the drive cam 42. The outer side of the drive connecting rod 43 is fitted with an elastic reset member 44. The axle of the drive cam 42 is connected to the output shaft of the drive motor 41.
[0038] The drive cam 42 is driven to rotate by the drive motor 41. When the drive cam 42 rotates to the point where the large-diameter rim contacts the drive connecting rod 43, the drive connecting rod 43 is subjected to downward pressure, which in turn drives the piston 3 to move downward. At this time, the elastic reset member 44 is in a compressed state. When the drive cam 42 rotates to the point where the pin diameter rim contacts the drive connecting rod 43, the elastic reset member 44 rebounds, which in turn drives the drive connecting rod 43 and the piston 3 to move upward.
[0039] like Figure 3 As shown, a driven bevel gear is mounted on the axle of the drive cam 42, and a drive bevel gear is mounted on the output shaft of the drive motor 41. The drive bevel gear and the driven bevel gear are meshed together. The drive motor 41 drives the drive bevel gear to rotate, which in turn drives the driven bevel gear and the drive cam 42 to rotate.
[0040] Furthermore, the elastic reset member 44 includes a reset spring, the top end of the drain cylinder 1 is provided with a stepped hole, a drive connecting rod 43 is slidably disposed inside the stepped hole, a reset spring is sleeved on the outside of the drive connecting rod 43, and the bottom end of the reset spring abuts against the stepped surface of the stepped hole.
[0041] Furthermore, a waterproof cover 45 is provided on the outside of the drive motor 41. By providing the waterproof cover 45, water accumulation inside the deep hole is prevented from contacting the drive motor 41, ensuring that the drive motor 41 can work safely and normally.
[0042] The other parts of this embodiment are the same as any one of embodiments 1-3, so they will not be described again.
[0043] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.
Claims
1. A deep-hole blasting drainage device for open-pit coal mines, comprising a drainage cylinder (1), characterized in that, The drainage cylinder (1) is provided with a drainage chamber (2) inside. A piston (3) is slidably arranged inside the drainage chamber (2) along the axial direction of the drainage cylinder (1). A driving device (4) is provided at the top of the piston (3) to drive the piston (3) to move back and forth axially. A water suction hole (5) is provided at the bottom and side wall of the drainage chamber (2). A filter screen (6) is provided inside the water suction hole (5). A first drainage pipe (100) and a second drainage pipe (200) are respectively connected to the bottom of the side wall and the drainage elevation line of the side wall of the drainage chamber (2). Both the first drainage pipe (100) and the second drainage pipe (200) are connected to a water pump (300).
2. The deep-hole blasting drainage device for open-pit coal mines according to claim 1, characterized in that, At least one stabilizing element that fits against the inner wall of the deep hole is provided on the outer side of the top of the side wall of the drainage cylinder (1).
3. The deep-hole blasting drainage device for open-pit coal mines according to claim 2, characterized in that, The stabilizing component includes a stabilizing annular airbag (7), which is connected to an air pump (8).
4. A deep-hole blasting drainage device for open-pit coal mines according to any one of claims 1-3, characterized in that, The top of the drainage cylinder (1) is provided with a lifting lug (9), which is connected to a cable.
5. A deep-hole blasting drainage device for open-pit coal mines according to any one of claims 1-3, characterized in that, The driving device (4) includes a drive motor (41), a drive cam (42), a drive link (43), and an elastic reset member (44). The top of the drain cylinder (1) is coaxially slidably provided with the drive link (43). The bottom end of the drive link (43) extends into the interior of the drain cavity (2) and is connected to the top end of the piston (3). The top end of the drive link (43) abuts against the rim of the drive cam (42). The outer side of the drive link (43) is fitted with an elastic reset member (44). The axle of the drive cam (42) is connected to the output shaft of the drive motor (41).
6. The deep-hole blasting drainage device for open-pit coal mines according to claim 5, characterized in that, The elastic reset member (44) includes a reset spring. The top end of the drain cylinder (1) is provided with a stepped hole. A drive link (43) is slidably disposed inside the stepped hole. A reset spring is sleeved on the outside of the drive link (43). The bottom end of the reset spring abuts against the stepped surface of the stepped hole.
7. The deep-hole blasting drainage device for open-pit coal mines according to claim 6, characterized in that, The drive motor (41) is provided with a waterproof cover (45).
8. A deep-hole blasting drainage device for open-pit coal mines according to any one of claims 1-3, characterized in that, Solenoid valves are installed on both the first drain pipe (100) and the second drain pipe (200).