Sealing device for in-situ leaching uranium extraction liquid extraction well
By designing a combination of clamping modules and rubber sealing modules, the problem of difficulty in sealing the wellhead of the pumping well was solved, achieving effective sealing against mud and rainwater, and improving the operational stability of the equipment and the efficiency of uranium extraction.
Patent Information
- Application Number
- CN202422970519.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-03
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2034-12-03
AI Technical Summary
In the process of in-situ leaching uranium production, it is difficult to seal the wellhead of the pumping well, allowing mud and rainwater to easily enter, leading to equipment wear, blockage, and dilution of the leachate, which affects the uranium extraction efficiency.
A sealing device consisting of a clamping module and a sealing module was designed. The clamping module is formed of stamped steel plate and is used to fix the leachate riser pipe, the deep well submersible pump anti-fall rope and cable. The sealing module is made of rubber and achieves sealing by extrusion, adapting to pipelines of different diameters.
It effectively prevents silt and rainwater from entering the pumping well, reduces water inflow, improves equipment operational stability, lowers the failure rate, and ensures uranium extraction efficiency.
Smart Images
Figure CN223767472U_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of in-situ leaching uranium mining technology, and more specifically to a sealing device for an in-situ leaching uranium extraction well. Background Technology
[0002] Currently, the extraction of leachate during in-situ leaching uranium production mainly relies on deep-well submersible pumps. These pumps, cables, leachate riser pipes, and anti-fall ropes are lowered together into the extraction well to a certain depth. During production, the wellhead of the extraction well contains pipes, cables, and ropes, making it difficult to seal and posing a risk of silt and rainwater ingress. Silt ingress can bury the extraction well and affect the operation of the pumping equipment. For example, if a large amount of silt mixes into the submersible pump during operation, it can cause equipment wear and blockages, affecting the normal operation of the extraction well. Rainwater ingress dilutes the leachate, affecting uranium extraction efficiency. Therefore, a sealing device for in-situ leaching uranium extraction wells is proposed, which effectively prevents silt and rainwater from entering the extraction well and has significant application value. Utility Model Content
[0003] The purpose of this invention is to provide a device that can seal the wellhead of a uranium extraction well in in-situ leaching to prevent silt and rainwater from entering the well.
[0004] The solution of this utility model is:
[0005] A sealing device for a uranium extraction well in in-situ leaching comprises a clamping module and a sealing module. The clamping module is formed by two stamped steel plates and includes a clamping part for the leaching fluid riser pipe, a clamping part for the deep well submersible pump's anti-fall rope, and a cable clamping part. The stamped steel plates are secured to the clamping components by the compressive force generated by fastening bolts. The sealing module is a frustum-shaped device with an upper diameter larger than the lower diameter. The sealing module has a leaching fluid riser pipe hole, a deep well submersible pump anti-fall rope hole, and a dedicated cable hole for the deep well submersible pump. The clamping module is placed on the sealing module.
[0006] The thickness of the clamping module is 8-12 mm, preferably 8 mm.
[0007] The leachate lift tube clamping part is circular, and its diameter is 2 to 4 mm smaller than the diameter of the leachate lift tube it clamps, preferably 3 mm smaller.
[0008] The clamping part of the deep well submersible pump anti-fall rope is circular, and its diameter is 1 to 3 mm smaller than the diameter of the deep well submersible pump anti-fall rope it clamps, preferably 2 mm smaller.
[0009] The cross-section of the cable clamp for deep well submersible pumps is the same as the cross-section of the cable for deep well submersible pumps.
[0010] The sealing module is made of acid and alkali resistant and low-temperature resistant rubber material, with a height of 100mm, an upper diameter of 150mm, and a lower diameter of 120mm.
[0011] The sealing module is provided with a through-hole for the leachate lift pipe, a hole for the anti-fall rope of the deep well submersible pump, and a hole for the special cable of the deep well submersible pump.
[0012] The leachate riser hole on the sealing module is frustum-shaped, with its upper diameter being 1mm larger than the diameter of the leachate riser being sealed, its lower diameter being 1mm smaller than the diameter of the leachate riser being sealed, and its height being 100mm.
[0013] The anti-fall rope hole for the deep well submersible pump on the sealing module is frustum-shaped, with its upper diameter being 1mm larger than the diameter of the anti-fall rope of the deep well submersible pump being sealed, and its lower diameter being 1mm smaller than the diameter of the anti-fall rope of the deep well submersible pump being sealed, and its height being 100mm.
[0014] The cable hole for the deep well submersible pump on the sealing module is trapezoidal. The length and width of the upper end of the cable hole are 1mm larger than the length and width of the sealed cable, while the length and width of the lower end are 1mm smaller than the length and width of the sealed cable. The height is 100mm.
[0015] The beneficial effects of this utility model are as follows:
[0016] By utilizing the elastic deformation of rubber, three difficult-to-seal components inside the pumping well are compressed and sealed. Furthermore, these components can be removed from the pumping well without disassembly. Its sealing performance meets the requirements for use in in-situ leaching uranium mines, effectively preventing rainwater and sediment from entering the pumping well. Simultaneously, due to its sealing design, when applied to pumping wells with low water inflow, it can effectively reduce drawdown, prevent pumping cavitation, improve operational stability, and reduce equipment failure rate. Attached Figure Description
[0017] Figure 1 Schematic diagram of a sealing device for a uranium extraction well in in-situ leaching.
[0018] Figure 2 Top view of a clamping module for a sealing device in a uranium extraction well from in-situ leaching.
[0019] Figure 3 Front view of a clamping module for a sealing device in a uranium extraction well from in-situ leaching.
[0020] Figure 4 Side view of a clamping module for a sealing device in a uranium extraction well from in-situ leaching.
[0021] Figure 5 Top view of a sealing module of a uranium extraction well sealing device.
[0022] Figure 6 Front view of a sealing module of a sealing device for uranium extraction wells in in-situ leaching.
[0023] Figure 7 Side view of a sealing module of a sealing device for uranium extraction wells in in-situ leaching.
[0024] The components include: 1. Clamping module, 2. Leachate riser clamping part, 3. Deep well submersible pump anti-fall rope clamping part, 4. Cable clamping part, 5. Sealing module, 6. Leachate riser hole, 7. Deep well submersible pump anti-fall rope hole, 8. Deep well submersible pump dedicated cable hole, 9. Deep well submersible pump dedicated cable, 10. Leachate riser, 11. Deep well submersible pump anti-fall rope, 12. Fastening bolt, and 13. Pumping well pipe. Detailed Implementation
[0025] The present invention will now be further described with reference to the accompanying drawings and specific embodiments.
[0026] A sealing device for a uranium extraction well in in-situ leaching comprises a clamping module 1 and a sealing module 5. The clamping module 1 is formed by two stamped steel plates and includes a leachate riser pipe clamping part 2, a deep well submersible pump anti-fall rope clamping part 3, and a cable clamping part 4. The stamped steel plates are fixed to the clamping components by the compressive force generated by fastening bolts 12. The sealing module 5 is a frustum-shaped device with an upper diameter larger than a lower diameter. The sealing module 5 has a leachate riser pipe hole 6, a deep well submersible pump anti-fall rope hole 7, and a deep well submersible pump dedicated cable hole 8. The clamping module 1 is placed on the sealing module 5, and the weight of the clamped components causes the sealing module 5 to deform under pressure against the inner wall of the extraction well pipe, thereby achieving a seal on the extraction well.
[0027] The thickness of the steel plate of clamping module 1 should be 8mm to ensure that it does not deform significantly during use.
[0028] The leachate riser clamping part 2 is circular, and its diameter is 3mm smaller than the diameter of the leachate riser 10 it clamps.
[0029] The clamping part 3 of the deep well submersible pump anti-fall rope is circular, and its diameter is 2mm smaller than the diameter of the clamped deep well submersible pump anti-fall rope 11.
[0030] The cross-section of the cable clamping part 4 for deep well submersible pumps is the same as the cross-section of the cable 9 for deep well submersible pumps.
[0031] The sealing module 5 is made of acid and alkali resistant and low temperature resistant rubber material, with a height of 100mm, an upper diameter of 150mm, and a lower diameter of 120mm.
[0032] The sealing module 5 is provided with a through-hole leaching liquid riser pipe 6, a deep well submersible pump anti-fall rope hole 7, and a deep well submersible pump dedicated cable hole 8.
[0033] The leachate riser hole 6 on the sealing module 5 is frustum-shaped. Its upper end diameter is 1 mm larger than the diameter of the leachate riser 10 being sealed, and its lower end diameter is 1 mm smaller than the diameter of the leachate riser 10 being sealed. Its height is 100 mm.
[0034] The deep well submersible pump anti-fall rope hole 7 on the sealing module 5 is a frustum shape. Its upper end diameter is 1mm larger than the diameter of the deep well submersible pump anti-fall rope 11 being sealed, and its lower end diameter is 1mm smaller than the diameter of the deep well submersible pump anti-fall rope 11 being sealed. Its height is 100mm.
[0035] The deep well submersible pump cable hole 8 on the sealing module 5 is trapezoidal. The length and width of the upper end of the deep well submersible pump cable hole 8 are 1mm larger than the length and width of the sealed deep well submersible pump cable 9, and the length and width of the lower end of the deep well submersible pump cable hole 8 are 1mm smaller than the length and width of the sealed deep well submersible pump cable 9, with a height of 100mm.
[0036] Another embodiment:
[0037] In a certain uranium leaching mine, the well pipes of its pumping wells are... UPVC pipe, 10mm thick. It needs to be lowered into the pumping well. One leaching fluid riser pipe (with a 4-inch deep well submersible pump installed at the bottom), and one 4×15×5mm deep well submersible pump dedicated cable. One submersible pump safety rope was used, with a lowering depth of 55m. This device was used to seal the pumping well. First, clamping module 1 and sealing module 5 were machined.
[0038] The clamping module 1 is stamped from an 8mm thick steel plate, and its leachate riser clamping part 2 is... The circular structure, the deep well submersible pump anti-fall rope clamping part 3 is The circular structure and the 15×5mm rectangular structure of the cable clamping part for deep well submersible pumps.
[0039] The sealing module 5 is a frustum made of low-temperature resistant rubber injection molding, with an upper diameter of 150mm, a lower diameter of 120mm, and a height of 100mm. The leaching liquid riser pipe sealing part 2 is a frustum, with an upper diameter of 64mm, a lower diameter of 62mm, and a height of 100mm. The deep well submersible pump anti-fall rope sealing part 3 is a frustum, with an upper diameter of 15mm, a lower diameter of 13mm, and a height of 100mm. The deep well submersible pump special cable sealing part 4 is a trapezoidal structure, with an upper area of 16×6mm, a lower area of 14×4mm, and a height of 100mm.
[0040] In use, the leachate riser 10, the deep well submersible pump safety rope 11, and the deep well submersible pump dedicated cable 9 are inserted into the upper parts of the corresponding leachate riser sealing parts 6, deep well submersible pump safety rope sealing parts 7, and cable sealing parts 8, and then protrude from the lower parts to the required length. Then, the corresponding clamping parts of the clamping module are used to clamp the upper part of the sealing module 5 using the fastening bolts 12. Next, the leachate riser 10, deep well submersible pump safety rope 11, and deep well submersible pump dedicated cable 9 are lowered together into the pumping well. The weight of the clamping equipment is used to press the sealing module 5 into the pumping well pipe 13, forming a seal.
Claims
1. A kind of in-situ leaching uranium pumping well sealing device, by clamping module (1) and sealing module (5) composition;The clamping module (1) is formed by two stamping steel plates, including leaching solution riser clamping part (2), deep well submersible pump anti-falling rope clamping part (3), cable clamping part (4), the stamping steel plate is fixed by the extrusion force of fastening bolt (12) clamping module (1);The sealing module (5) is circular platform device, the diameter of upper end is greater than the diameter of lower end, the sealing module (5) is equipped with leaching solution riser hole (6), deep well submersible pump anti-falling rope hole (7), deep well submersible pump special cable hole (8);The clamping module (1) is placed on sealing module (5).
2. An in-situ leaching uranium extraction well sealing device as claimed in claim 1, characterised in that: The thickness of the clamping module (1) is 8-12mm.
3. An in-situ leaching uranium extraction well sealing device as claimed in claim 2, characterised in that: The leaching solution riser clamping part (2) is circular, and its diameter is 2-4mm smaller than the diameter of the clamped leaching solution riser (10).
4. An in-situ leaching uranium extraction well sealing device as claimed in claim 2, characterised in that: The deep well submersible pump anti-falling rope clamping part (3) is circular, and its diameter is 1-3mm smaller than the diameter of the clamped deep well submersible pump anti-falling rope (11).
5. An in-situ leachable uranium extraction well sealing apparatus as claimed in claim 2 wherein: The cross section of the deep well submersible pump special cable clamping part (4) is consistent with the cross section of the deep well submersible pump special cable (9).
6. An in-situ leachable uranium extraction well sealing apparatus as claimed in claim 1 wherein: The sealing module (5) is made of acid and alkali resistant, low temperature resistant rubber material, 100mm high, 150mm in diameter at the upper end, and 120mm in diameter at the lower end.
7. An in-situ leachable uranium extraction well sealing apparatus as claimed in claim 1 wherein: The sealing module (5) is provided with one leaching solution riser hole (6), one deep well submersible pump anti-falling rope hole (7), and one deep well submersible pump special cable hole (8).
8. An in-situ leachable uranium extraction well sealing apparatus as claimed in claim 7 wherein: The leaching solution riser hole (6) on the sealing module (5) is circular platform type, and its upper end diameter is 1mm larger than the diameter of the sealed leaching solution riser (10), and its lower end diameter is 1mm smaller than the diameter of the sealed leaching solution riser (10), with a height of 100mm.
9. An in-situ leachable uranium extraction well sealing apparatus as claimed in claim 7 wherein: The deep well submersible pump anti-falling rope hole (7) on the sealing module (5) is circular platform type, and its upper end diameter is 1mm larger than the diameter of the sealed deep well submersible pump anti-falling rope (11), and its lower end diameter is 1mm smaller than the diameter of the sealed deep well submersible pump anti-falling rope (11), with a height of 100mm.
10. An in-situ leachable uranium extraction well sealing apparatus as claimed in claim 7 wherein: The deep well submersible pump special cable hole (8) on the sealing module (5) is trapezoidal platform type, and the length and width of the upper end of the deep well submersible pump special cable hole (8) are each 1mm larger than those of the sealed deep well submersible pump special cable (9), and the length and width of the lower end of the deep well submersible pump special cable hole (8) are each 1mm smaller than those of the sealed deep well submersible pump special cable (9), with a height of 100mm.