Uranium mining shaft cleaning device and method

Abstract

The invention relates to the field of uranium industry, in particular to a uranium mine mining shaft cleaning device and an application method. Due to the fact that the uranium mine shaft is complex in environment and harsh in operation condition, a common single cleaning mode cannot meet the cleaning requirement of the shaft efficiently, safely and environmentally friendly. The device comprises an electromagnet sliding cleaning unit, an ultrasonic cleaning unit, a high-pressure water cleaning unit and a comprehensive control unit, magnetic ultrasonic sliding blocks are sequentially arranged in a liquid pumping well, a coil is arranged on the inner wall of the liquid pumping well, a traction cable is arranged in the center of the liquid pumping well, and a hovering magnet is arranged on the lower side of the inner wall of the liquid pumping well; hard brushes are fixedly connected to the two sides of the magnetic ultrasonic sliding block, the upper end of the magnetic ultrasonic sliding block is connected with a traction cable, and the jet pipe and the high-pressure pump truck are connected and arranged on the ground. Through time sequence cooperation of three cleaning mechanisms of physical stripping, hydraulic scouring and chemical decomposition, the cleaning efficiency and safety are remarkably improved, and finally the purposes of high efficiency, safety and environmental protection of uranium mining are achieved.

Description

Technical Field

[0001] The present invention relates to the field of uranium industry, and specifically comprises a uranium mining shaft cleaning device and method. Background Art

[0002] In-situ leaching is a relatively modern uranium mining method, often used in areas with shallow uranium deposits and favorable hydrogeological conditions. It involves injecting a solution (typically containing ammonia, sulfuric acid, or other solvents) into the underground ore layer to dissolve the uranium ore. The dissolved uranium solution is then pumped to the surface through a recovery well for processing. While this method offers less ground disturbance and lower environmental impact than traditional mining, it can also present potential challenges, particularly in shaft cleaning and maintenance. Uranium mine shafts are complex environments and demanding operating conditions. Specifically, shaft walls are susceptible to contamination from uranium slag, metal rust, chemical scaling, and radioactive particles, forming a multi-faceted, complex contamination pattern. Cracks, pores, and irregular surfaces in shaft walls make comprehensive cleaning difficult with traditional cleaning technologies. Traditional high-pressure water cleaning is ineffective in removing radioactive particles, leading to the risk of secondary contamination. Ultrasonic cleaning alone is inefficient in removing metallic deposits and slag. Electromagnetic cleaning devices, lacking adaptability to complex shaft walls, have a cleaning coverage rate of less than 70%. Therefore, it is particularly important to develop an efficient, safe and environmentally friendly uranium mining shaft cleaning device that combines the synergistic effects of multiple technologies. Summary of the Invention

[0003] 1. Purpose

[0004] The purpose of the present invention is to propose a uranium mining shaft cleaning device, which combines electromagnet sliding cleaning technology, high-pressure water cleaning technology and ultrasonic cleaning technology. Through the synergistic effect of the three advanced cleaning technologies, it effectively solves the problem of cleaning various pollutants in uranium mining shafts. The device first drives a hard brush through an electromagnet sliding cleaning unit to remove large-particle metal deposits (such as uranium slag and rust), and then uses a high-pressure water cleaning unit (10-50MPa) to flush and flush loose pollutants from the well wall. Finally, the ultrasonic cleaning unit uses high-frequency sound waves (25-50kHz) to produce a cavitation effect, decomposing and removing residual submicron particles and chemical scaling, forming a triple cleaning mechanism of "physical stripping + hydraulic flushing + chemical decomposition". The device significantly improves cleaning efficiency and safety through the sequential coordination of three technologies (electromagnetic cleaning, high-pressure water flushing, and ultrasonic refinement), and ultimately achieves the goals of high efficiency, safety, and environmental protection in uranium mining.

[0005] 2. Technical solution

[0006] A uranium mining shaft cleaning device comprises an electromagnet sliding cleaning unit, an ultrasonic cleaning unit, a high-pressure water cleaning unit and an integrated control unit; the electromagnet sliding cleaning unit comprises a coil, a traction cable, a hovering magnet and a magnetic ultrasonic slider; the ultrasonic cleaning unit comprises an ultrasonic transmitter; the high-pressure water cleaning unit comprises a jet tube and a high-pressure pump truck; the integrated control unit comprises an integrated controller, which is arranged on the outside of the top of the pumping well; the ultrasonic cleaning unit is embedded in the electromagnet sliding cleaning unit; and the integrated control unit is connected to the electromagnet sliding cleaning unit, the ultrasonic cleaning unit and the high-pressure water cleaning unit via signals.

[0007] The coil is fixedly connected to the inner wall of the pumping well, the traction cable is fixedly connected to the center of the pumping well, and the magnetic ultrasonic slider is slidably connected to the traction cable; it is fixedly connected to both sides of the bottom of the inner wall of the pumping well; hard brushes are fixedly connected to both sides of the magnetic ultrasonic slider, and the upper end is connected to the traction cable.

[0008] The magnetic ultrasonic slider is provided with the ultrasonic transmitter with an operating frequency of 20-40kHz, and the radiation shielding is enhanced by the boron polyethylene lining material.

[0009] The jet tube is connected to a high-pressure pump truck and both are arranged on the ground surface. The water flow pressure of the high-pressure pump truck is 10-50MPa.

[0010] A uranium mining shaft cleaning method includes the following steps:

[0011] a. Equipment inspection and debugging: Inspect and debug the electromagnet, ultrasonic cleaning device and high-pressure water jet system to ensure that all equipment is in good operating condition and the cleaning equipment is ready;

[0012] b. Start the electromagnet cleaning device: Start the electromagnet sliding cleaning device through the well washing integrated controller. The device uses the magnetic field force generated by the electromagnet to drive the magnetic ultrasonic slider to slide along the inner wall of the wellbore;

[0013] c. Start the high-pressure water cleaning system: After the electromagnet is cleaned, the high-pressure water cleaning system is started through the well washing integrated controller. The high-pressure pump truck sprays water at a pressure of 10-50MPa. The high-pressure water is injected into the wellbore through high-pressure pipes and nozzles to flush loose contaminants from the well wall.

[0014] d. Start the ultrasonic cleaning unit: After the electromagnet and high-pressure water cleaning, the ultrasonic cleaning unit is started through the well washing integrated controller. By emitting high-frequency sound waves, tiny bubbles are generated and burst rapidly, decomposing the remaining submicron particles and chemical scale;

[0015] e. Equipment shutdown and maintenance: After the cleaning operation is completed, the relevant equipment will be shut down and undergo routine maintenance and inspection to ensure that the equipment is in good condition before the next use;

[0016] The uranium mining shaft cleaning device disclosed in the present invention has the following innovative advantages:

[0017] The uranium mine shaft cleaning device described in this invention comprises an electromagnet sliding cleaning unit, an ultrasonic cleaning unit, a high-pressure water cleaning unit, and an integrated control unit. By combining electromagnet, ultrasonic, and high-pressure water cleaning technologies, it can effectively remove various contaminants within the shaft, including metallic deposits, slag, dust, corrosion products, and fine particles. This synergistic effect of multiple technologies covers different types of contaminants within the shaft, ensuring comprehensive and thorough cleaning. Ultrasonic technology can penetrate deep into the shaft, into cracks, and inaccessible areas, removing even tiny contaminants that traditional mechanical cleaning cannot effectively reach. The electromagnet cleaning and high-pressure water systems can handle a variety of contaminants, such as metallic deposits, slag, and larger particles of corrosion, adapting to the complex and changing contamination environment within uranium mine shafts. By integrating electromagnet sliding cleaning, ultrasonic cleaning, and high-pressure water cleaning technologies, this uranium mine shaft cleaning device not only provides efficient and precise cleaning results, but also reduces mining costs, improves mine safety, and enhances resource utilization. Its intelligent, environmentally friendly, and energy-saving features make it an ideal shaft cleaning device for modern mining, meeting the needs of green mining and sustainable development. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the overall state diagram of the present invention;

[0019] Figure 2 A detailed diagram of the ultrasonic cleaning unit of the present invention;

[0020] In the figure: 1. Integrated controller; 2. Coil; 3. Suspension magnet; 4. Magnetic ultrasonic slider; 5. Traction cable; 6. Jet tube; 7. High-pressure pump truck; 8. Hard brush; 9. Ultrasonic transmitter. DETAILED DESCRIPTION

[0021] like Figure 1The uranium mining shaft cleaning device shown includes an electromagnet sliding cleaning unit, an ultrasonic cleaning unit, a high-pressure water cleaning unit, and an integrated control unit. The electromagnet sliding cleaning unit includes a coil, a traction cable, a hovering magnet, and a magnetic ultrasonic slider, which are arranged in sequence in the pumping well. The coil is fixedly connected to the inner wall of the pumping well, the traction cable is fixedly connected along the center of the pumping well, the hovering magnet is installed on both sides of the inner wall of the bottom of the pumping well, and the magnetic ultrasonic slider is slidably connected to the traction cable and has hard brushes on both sides. The ultrasonic cleaning unit includes the magnetic ultrasonic slider, which has an integrated ultrasonic transmitter, taking the Sonics VCX-800R model as an example. The high-pressure water cleaning unit includes a jet tube and a high-pressure pump truck, with one end of the jet tube connected to the pumping well and the other end connected to the high-pressure pump truck. The integrated control unit includes an integrated controller installed on the outside of the top of the pumping well.

[0022] This device combines electromagnet sliding cleaning technology, ultrasonic cleaning technology, and high-pressure water cleaning technology. Through the synergistic effect of these three advanced cleaning technologies, it effectively solves the problem of cleaning various pollutants in uranium mining shafts. This device not only improves cleaning efficiency and reduces cleaning costs, but also ensures safe mining and environmental protection in the shaft, achieving the goals of efficient, safe, and environmentally friendly uranium mining.

[0023] The electromagnet sliding cleaning unit includes the coil 2, the traction cable 5, and the hovering magnet 3. The coil 2 is fixedly connected to the inner wall of the pumping well, the traction cable 5 is fixedly connected to the center of the pumping well, the magnetic ultrasonic slider 4 is slidably connected to the traction cable 5, and the traction cable 5 is model HELUKABEL PURAD 8800R as an example. The hovering magnet 3 is fixedly connected to both sides of the bottom of the inner wall of the pumping well, and the hard brush 8 is fixedly connected to both sides of the magnetic ultrasonic slider 4;

[0024] The traction cable 5 (HELUKABEL PURAD 8800R) can withstand 80°C high-pressure hot water spray and is resistant to electromagnetic interference;

[0025] like Figure 2 The ultrasonic cleaning unit shown includes the magnetic ultrasonic slider 4, which is the same slider as the magnetic ultrasonic slider 4 of the electromagnet sliding cleaning unit, and has the ultrasonic transmitter 9 disposed therein;

[0026] The high-pressure water cleaning unit includes the jet tube 6 and the high-pressure pump truck 7, which are arranged on the surface in sequence. The jet tube 6 is connected to the high-pressure pump truck 7, and the jet tube 6 enters the well through the top of the pumping well.

[0027] The integrated control unit includes the integrated controller 1, which is arranged outside the top of the pumping well and can control the above three units through signal transmission.

[0028] The specific steps are as follows:

[0029] a. Equipment inspection and debugging: Inspect and debug the suspension magnet 3, the ultrasonic cleaning device and the high-pressure water jet system to ensure that all equipment is in good operating condition and the cleaning equipment is ready;

[0030] b. Start the electromagnet cleaning device: Start the electromagnet sliding cleaning device through the integrated controller 1. The device drives the magnetic ultrasonic slider 4 to slide along the inner wall of the wellbore through the magnetic field force generated by the suspension magnet 3;

[0031] c. Start the high-pressure water cleaning system: After the electromagnet is cleaned, the high-pressure water cleaning system is started through the integrated controller 1. The high-pressure pump truck 7 sprays water at a pressure of 10-50 MPa. The high-pressure water flows through the jet tube 6 into the wellbore to flush loose contaminants from the well wall.

[0032] d. Start the ultrasonic cleaning unit: After the electromagnet and high-pressure water cleaning, the ultrasonic cleaning unit is started by the integrated controller 1. The ultrasonic transmitter 9 generates tiny bubbles by emitting high-frequency sound waves and quickly bursts them, decomposing the remaining submicron particles and chemical scale through the cavitation effect;

[0033] e. Equipment shutdown and maintenance: After the cleaning operation is completed, the relevant equipment will be shut down and undergo routine maintenance and inspection to ensure that the equipment is in good condition before the next use.

Claims

1. A uranium mining shaft cleaning device, characterized by: The invention comprises an electromagnet sliding cleaning unit, an ultrasonic cleaning unit, a high-pressure water cleaning unit and an integrated control unit; the electromagnet sliding cleaning unit comprises a coil (2), a traction cable (5), a hovering magnet (3) and a magnetic ultrasonic slider (4); the ultrasonic cleaning unit comprises an ultrasonic transmitter (9); the high-pressure water cleaning unit comprises a jet tube (6) and a high-pressure pump truck (7); the integrated control unit comprises an integrated controller (1) arranged on the outside of the top of the pumping well; the ultrasonic cleaning unit is embedded in the electromagnet sliding cleaning unit; and the integrated control unit is connected to the electromagnet sliding cleaning unit, the ultrasonic cleaning unit and the high-pressure water cleaning unit through signals.

2. The uranium mining shaft cleaning device according to claim 1, characterized in that: The coil (2) is fixedly connected to the inner wall of the pumping well, the traction cable (5) is fixedly connected to the center of the pumping well, and the magnetic ultrasonic slider (4) is slidably connected to the traction cable (5); fixedly connected to both sides of the bottom of the inner wall of the pumping well; hard brushes (8) are fixedly connected to both sides of the magnetic ultrasonic slider (4), and the upper end is connected to the traction cable (5).

3. The uranium mining shaft cleaning device according to claim 1, characterized in that: The magnetic ultrasonic slider (4) is provided with the ultrasonic transmitter (9) with an operating frequency of 20-40 kHz, and the radiation shielding is enhanced by the boron polyethylene lining material.

4. The uranium mining shaft cleaning device according to claim 1, characterized in that: The jet tube (6) is connected to the high-pressure pump truck (7), both of which are arranged on the ground surface. The water flow pressure of the high-pressure pump truck is 10-50MPa.

5. A method for cleaning a uranium mining shaft, characterized by: The method comprises the following steps: 1) checking and debugging the equipment; 2) starting the electromagnet cleaning device; 3) starting the high-pressure water cleaning system; 4) starting the ultrasonic cleaning unit; and 5) stopping and maintaining the equipment.

6. The uranium mining shaft cleaning device according to claim 5, characterized in that: Step 1: Equipment inspection and debugging, specifically including: inspection and debugging of the suspension magnet (3), ultrasonic cleaning device and high-pressure water jet system to ensure that all equipment is in good operating condition and the cleaning equipment is ready.

7. The uranium mining shaft cleaning device according to claim 5, characterized in that: Step 2: Start the electromagnet cleaning device, start the electromagnet sliding cleaning device through the integrated controller (1), and drive the magnetic ultrasonic slider (4) to slide along the inner wall of the wellbore through the magnetic field force generated by the suspension magnet (3).

8. The uranium mining shaft cleaning device according to claim 5, characterized in that: Step 3: Starting the high-pressure water cleaning system, specifically including: starting the high-pressure pump truck (7) through the integrated controller (1) to spray water at a pressure of 10-50 MPa, and injecting water into the wellbore through the jet tube (6) to flush loose pollutants on the well wall.

9. The uranium mining shaft cleaning device according to claim 5, characterized in that: Step 4: starting the ultrasonic cleaning unit, specifically including: starting the ultrasonic cleaning unit through the integrated controller (1), and the ultrasonic transmitter (9) emitting high-frequency sound waves to decompose the residual submicron particles and chemical scale through the cavitation effect.

10. The uranium mining shaft cleaning device according to claim 5, characterized in that: Step 5: Equipment shutdown and maintenance, specifically including: After the cleaning operation is completed, the relevant equipment will be shut down and undergo routine maintenance and inspection to ensure that the equipment is in good condition before the next use.

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