Intelligent dredging device for water sump of excavation working face

By designing a primary sedimentation tank and a secondary drainage tank in the mine water sump, and combining them with an acoustic sensor to automatically monitor and control the stirring unit and mud pump, the problems of high manual labor intensity and low efficiency in traditional sedimentation tanks have been solved, achieving a fully automated dredging effect.

CN224180305UActive Publication Date: 2026-05-01SHANXI LUAN GRP SIMA COAL IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANXI LUAN GRP SIMA COAL IND CO LTD
Filing Date
2025-05-26
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Traditional sedimentation tanks in mine drainage suffer from problems such as high manual labor intensity, low efficiency, and blockage caused by untimely sludge removal, which affect safe production and operational efficiency.

Method used

A smart dredging device for water tanks in mining faces was designed. It adopts a primary sedimentation tank and a secondary drainage tank, combined with an acoustic sensor to monitor the silt thickness in real time. When the silt reaches the set height, it automatically triggers an alarm and starts the mixing unit and mud pump to achieve fully automatic linkage dredging.

Benefits of technology

It has achieved fully automated dredging of mine water tanks, reducing the dangers and untimeliness of manual dredging, and improving dredging efficiency and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an intelligent dredging device for a water sump of an excavation working face, which comprises a box body, a first-stage sediment box, a second-stage sediment box, a first-stage sediment box, a second-stage sediment box and a second-stage sediment box, the drain hole is formed in the upper section of the partition plate; the slurry pump is arranged at the bottom of the primary settling tank, the output end of the slurry pump is connected with a slurry pumping and discharging pipeline, and the slurry pumping and discharging pipeline extends to the outside of the primary settling tank; and the sonic sensor is arranged on the inner wall of the primary settling tank. The full-automatic linkage type dredging device can achieve full-automatic linkage type dredging.
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Description

Intelligent sludge removal device for water tanks in mining faces Technical Field

[0001] This utility model belongs to the field of mine drainage, and in particular, it is an intelligent dredging device for water tanks in mining faces. Background Technology

[0002] Currently, mine drainage typically uses traditional sedimentation tanks for wastewater treatment, which suffers from problems such as high manual labor intensity, low efficiency, and blockages caused by untimely sludge removal, seriously affecting safe production and operational efficiency. Therefore, it is essential to develop an intelligent device capable of real-time monitoring and automatic sludge removal. Summary of the Invention

[0003] The purpose of this utility model is to provide an intelligent dredging device for water tanks in mining faces, which can achieve fully automatic and interconnected dredging. The technical solution adopted is as follows:

[0004] A smart dredging device for water tanks in mining faces includes:

[0005] The tank is equipped with partitions to form a primary sedimentation tank and a secondary drainage tank.

[0006] Drainage hole 2 is located on the upper section of the partition;

[0007] A mud pump 4 is located at the bottom of the primary sedimentation tank, and its output end is connected to a mud pumping pipeline 1, which extends to the outside of the primary sedimentation tank.

[0008] And an acoustic wave sensor 6, which is installed on the inner wall of the primary sedimentation tank.

[0009] Preferably, the height of the primary sedimentation tank is 2000mm. When the sludge deposition height in the primary sedimentation tank reaches 1500mm, the acoustic sensor 6, located 400mm from the top of the primary sedimentation tank, is triggered.

[0010] Preferably, the distance between the drain hole 2 and the top of the primary sedimentation tank is greater than 400mm and less than 500mm.

[0011] Preferably, it further includes:

[0012] The stirring unit 5 has one end located inside the primary sedimentation tank and the other end extending to the outside of the primary sedimentation tank and connected to the power unit.

[0013] Preferably, the stirring unit 5 includes:

[0014] The stirring shaft passes through a rigid tube, with fan blades at its lower end and its upper end connected to the output end of the motor.

[0015] The rigid pipes and motor are both mounted on a support frame; the support frame is located outside the primary sedimentation tank.

[0016] Preferably, the rigid pipe is mounted on the support frame by clamps, and the motor is fixed to the support frame; the mud pumping pipeline 1 is mounted on the support frame by clamps.

[0017] Preferably, the rigid pipe fitting is a PVC pipe fitting or a metal pipe fitting.

[0018] Preferably, the bottom of the secondary drainage tank is equipped with a mud pump, which contains a stirring unit and an acoustic sensor on its inner wall.

[0019] Preferably, the height of the secondary drainage tank is 2000mm. When the silt accumulation in the secondary drainage tank reaches 1000mm, the acoustic sensor located 800mm from the top of the secondary drainage tank is triggered.

[0020] Preferably, the secondary drainage tank is provided with a drainage ditch 3, which is lower than the drainage hole 2 and higher than the acoustic sensor on the secondary drainage tank.

[0021] Preferably, it further includes a screw slag discharger 7, which is disposed in the primary sedimentation tank.

[0022] Compared with the prior art, the advantages of this utility model are:

[0023] The system consists of a primary sedimentation tank and a secondary drainage tank, which respectively achieve primary sedimentation and secondary purification of wastewater. The device uses an acoustic sensor to monitor the sediment thickness in real time and automatically triggers an alarm, bottom stirring, and sludge discharge when the set height is reached. Attached Figure Description

[0024] Figure 1 is a structural diagram of an intelligent dredging device for a water tank in a mining face according to Example 1;

[0025] Figure 2 is a structural diagram of an intelligent dredging device for a water tank in a mining face according to Example 2.

[0026] Among them, 1-mud pumping pipeline, 2-drainage hole, 3-drainage ditch, 4-mud pump, 5-mixing unit, 6-sound wave sensor. Detailed Implementation

[0027] The following is a more detailed description of an intelligent dredging device for a water tank in a mining face, with reference to schematic diagrams illustrating preferred embodiments of the invention. It should be understood that those skilled in the art can modify the invention described herein while still achieving its advantageous effects. Therefore, the following description should be understood as being of general knowledge to those skilled in the art and is not intended to limit the scope of the invention.

[0028] Example 1

[0029] As shown in Figure 1, an intelligent dredging device for a water tank in a mining face includes:

[0030] The tank is equipped with partitions to form a primary sedimentation tank and a secondary drainage tank.

[0031] Drainage hole 2 is located on the upper section of the partition;

[0032] The mud pump 4 is located at the bottom of the primary sedimentation tank, and its output end is connected to the mud pumping pipeline 1, which extends to the outside of the primary sedimentation tank. The mud pumping pipeline 1 is a PVC pipe or a metal pipe.

[0033] Acoustic sensor 6 is installed on the inner wall of the primary sedimentation tank.

[0034] The stirring unit 5 has one end located inside the primary sedimentation tank and the other end extending to the outside of the primary sedimentation tank and connected to the power unit.

[0035] The height of the primary sedimentation tank is 2000mm. When the sludge deposition height in the primary sedimentation tank reaches 1500mm, the acoustic sensor 6, located 400mm from the top of the primary sedimentation tank, is triggered.

[0036] The distance between drain hole 2 and the top of the primary sedimentation tank is greater than 400mm and less than 500mm.

[0037] Specifically, the stirring unit 5 includes:

[0038] The stirring shaft passes through a rigid tube, with fan blades at its lower end and its upper end connected to the output end of the motor.

[0039] Rigid pipes and motors are all mounted on a support frame; the support frame is located outside the primary sedimentation tank.

[0040] The rigid pipe is mounted on the support frame with clamps, and the motor is fixed to the support frame; the mud pumping pipe 1 is mounted on the support frame with another clamp.

[0041] Rigid pipe fittings can be PVC or metal.

[0042] The support frame, motor, and clamps are not shown in Figure 1.

[0043] The bottom of the secondary drainage tank is equipped with a mud pump, which contains a stirring unit, and its inner wall is fitted with an acoustic sensor. The structure and arrangement of the mud pump, stirring unit, and acoustic sensor are the same as those in the primary sedimentation tank.

[0044] The secondary drainage tank is 2000mm high. When the silt accumulation in the secondary drainage tank reaches 1000mm, an acoustic sensor located 800mm from the top of the secondary drainage tank is triggered.

[0045] The secondary drainage tank is equipped with a drainage ditch 3, which is lower than the drainage hole 2 and higher than the acoustic sensor on the secondary drainage tank.

[0046] The working principle of this device is as follows:

[0047] Wastewater from the working face first enters the primary sedimentation tank, where mud and sand are deposited at the bottom. When the sedimentation height approaches 1500mm, the acoustic sensor 6, installed 400mm above the top of the primary sedimentation system, identifies and triggers an alarm. At the same time, the control system starts the high-pressure stirring unit 5 to stir the bottom sediment, and then starts the mud pump 4 to discharge the mud and sand sediment through the mud pumping pipeline 1.

[0048] After primary sedimentation, the clear water automatically flows into the secondary drainage tank through drain hole 2. When the sludge at the bottom of the tank reaches 1000mm, the acoustic sensor installed at the top 800mm of the secondary drainage system will automatically trigger an alarm and start the high-pressure stirring unit and mud pump at the secondary drainage tank. The stirring and sludge discharge process will be repeated to achieve system linkage automation.

[0049] This device has a compact structure and is easy to maintain. It realizes the full automation of mine water tank dredging and effectively avoids the dangers and untimeliness of manual dredging operations.

[0050] Example 2

[0051] Based on Example 1, a screw slag discharger 7 is installed at the primary settling tank. The screw slag discharger 7 mainly discharges large pieces of coal slag and gangue.

[0052] As shown in Figure 2, the screw-type slag discharger 7 includes:

[0053] The outer pipe has a slag outlet located at the primary sedimentation tank. The outer pipe is mounted on the support frame by clamps.

[0054] A spiral mandrel is located inside the outer tube and connected to the output end of the motor. The motor is mounted on a support frame.

[0055] In this embodiment, the motor and clamp are different from those in Embodiment 1.

[0056] After the stirring unit 5 at the first sedimentation tank is started, the mud pump 4 and the screw slag discharger 7 are started immediately.

[0057] The above are merely preferred embodiments of this utility model and do not constitute any limitation on this utility model. Any equivalent substitutions or modifications made by those skilled in the art to the technical solutions and contents disclosed in this utility model without departing from the scope of the technical solutions of this utility model shall still fall within the protection scope of this utility model.

Claims

1. An intelligent dredging device for water tanks in mining faces, characterized in that, include: The box body is equipped with a partition to form a primary sedimentation tank and a secondary drainage tank; the drainage hole (2) is located on the upper part of the partition. A mud pump (4) is installed at the bottom of the primary sedimentation tank, and its output end is connected to a mud pumping pipeline (1), which extends to the outside of the primary sedimentation tank; and an acoustic sensor (6) is installed on the inner wall of the primary sedimentation tank.

2. The intelligent dredging device for water tanks in mining faces according to claim 1, characterized in that, The height of the primary sedimentation tank is 2000mm. When the sludge deposition height in the primary sedimentation tank reaches 1500mm, the acoustic sensor (6) located 400mm from the top of the primary sedimentation tank is triggered.

3. The intelligent dredging device for water tanks in mining faces according to claim 2, characterized in that, The distance between the drain hole (2) and the top of the primary sedimentation tank is greater than 400mm and less than 500mm.

4. The intelligent dredging device for water tanks in mining faces according to claim 1, characterized in that, Further includes: The stirring unit (5) has one end located inside the primary sedimentation tank and the other end extending to the outside of the primary sedimentation tank and connected to the power unit.

5. The intelligent dredging device for water tanks in mining faces according to claim 4, characterized in that, The stirring unit (5) includes: a stirring shaft that passes through a rigid pipe, with fan blades at its lower end and its upper end connected to the output end of a motor; both the rigid pipe and the motor are mounted on a support frame; the support frame is located outside the primary sedimentation tank.

6. The intelligent dredging device for water tanks in mining faces according to claim 5, characterized in that, The rigid pipe is mounted on the support frame by clamps, and the motor is fixed to the support frame; the mud pumping pipeline (1) is mounted on the support frame by clamps.

7. The intelligent dredging device for water tanks in mining faces according to claim 2, characterized in that, The bottom of the secondary drainage tank is equipped with a mud pump, which contains a stirring unit and an acoustic sensor on its inner wall.

8. The intelligent dredging device for water tanks in mining faces according to claim 7, characterized in that, The secondary drainage tank is 2000mm high. When the silt accumulation in the secondary drainage tank reaches 1000mm, the acoustic sensor located 800mm from the top of the secondary drainage tank is triggered.

9. The intelligent dredging device for water tanks in mining faces according to claim 7, characterized in that, The secondary drainage tank is provided with a drainage ditch (3), which is lower than the drainage hole (2) and higher than the acoustic sensor on the secondary drainage tank.

10. The intelligent dredging device for water tanks in mining faces according to claim 1, characterized in that, It further includes a screw slag discharger (7), which is installed in the primary sedimentation tank.