Anti-blocking water injection head for water-soluble mining of salt mine drilling

By introducing an anti-clogging water injection inner pipe and a spiral feeding rod structure into the water injection head for salt mine drilling and water-soluble mining, combined with a sealing sleeve and anti-rust coating, the problem of easy clogging of the water injection head is solved, improving water injection efficiency and mining stability, and reducing equipment failure and maintenance costs.

CN224679480UActive Publication Date: 2026-08-25DONGGUAN ZHONGTANG DONGTENG SALT MINE DEV CO LTD
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Patent Information

Application Number
CN202521609842.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-31
Publication Date
2026-08-25
Estimated Expiration
2035-07-31

AI Technical Summary

Technical Problem

Traditional salt mine drilling water-soluble injection heads are easily clogged by solid particles and impurities, resulting in reduced water injection flow and affecting mining efficiency and production progress.

Method used

A water injection head for salt mine drilling and water-soluble mining with anti-clogging function was designed, comprising a water injection pipe head, a connecting socket, an anti-clogging water injection inner pipe, and a spiral feeding rod. The spiral feeding rod is driven to rotate by a geared motor to prevent solid particles from clogging. A sealing sleeve and an anti-rust coating are installed inside the water injection pipe head to ensure stable connection and sealing.

Benefits of technology

It effectively prevents solid particles from clogging the water, ensures smooth water flow, improves water injection efficiency and mining stability, and reduces equipment failure and maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of salt mine drilling accessories, concretely to salt mine drilling water solution mining anti -blocking water injection head, including the water injection pipe head of salt mine drilling water solution mining, the top end coaxial of water injection pipe head is provided with the connecting socket, the bottom coaxial of water injection pipe head is installed with the water injection end, the utility model discloses the water injection pipe head and the water injection cavity that sets up inside it are set up, cooperate the anti -blocking water injection inner tube of embedding in the bottom of water injection pipe head and the spiral feeding rod of installing in the anti -blocking water injection inner tube, make when salt mine drilling water solution mining, the deceleration motor can drive spiral feeding rod to rotate continuously in the anti -blocking water injection inner tube, effectively prevent solid particles or impurities from accumulating and blocking at the water injection end when salt mine drilling, the water inlet hole of anti -blocking water injection inner tube outer wall opening guarantees the water in water injection cavity can smoothly enter anti -blocking water injection inner tube and transport to the water injection end, and the connecting socket of water injection pipe head top end coaxial setting is convenient for with external water injection equipment stable connection.
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Description

Technical Field

[0001] This utility model relates to the technical field of salt mine drilling accessories, specifically to an anti-clogging water injection head for water-soluble mining in salt mines. Background Technology

[0002] In the field of salt mine drilling and solution mining, the injection head is a key component for achieving solution mining, and its performance directly affects mining efficiency and quality. With the continuous growth in demand for salt resources and the ongoing advancement of mining technology, higher requirements are being placed on the functionality and reliability of injection heads. Traditional injection heads lack effective anti-clogging structures. During water injection operations, solid particles and impurities from the salt mine easily enter the injection head with the water flow. Without a structure like a spiral feeder to guide and push the water flow and its entrained substances, these solid particles and impurities easily accumulate at the injection head. Over time, the accumulated particles and impurities gradually clog the injection channel, preventing water from flowing smoothly into the salt mine well. Once clogging occurs, the water flow rate will significantly decrease, the efficiency of solution mining will drop drastically, and it may even lead to the interruption of mining operations, seriously affecting the salt mine's production progress and increasing production costs and operational risks. Therefore, improving the anti-clogging performance of injection heads has become an urgent problem to be solved in current salt mine drilling and solution mining technology. Utility Model Content

[0003] The purpose of this invention is to provide a water injection head for salt mine drilling and water-soluble mining that is resistant to clogging, in order to solve the problem mentioned in the background art that existing water injection heads for salt mine drilling are prone to clogging.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A water injection head for preventing blockage in salt mine drilling and water-soluble mining includes a water injection pipe head used in salt mine drilling and water-soluble mining. The top of the water injection pipe head is coaxially provided with a connection socket, and the bottom of the water injection pipe head is coaxially installed with a water injection end.

[0006] The water injection pipe head has a built-in water injection chamber. An anti-clogging water injection inner pipe is embedded in the bottom of the water injection pipe head. A spiral feeding rod is installed inside the anti-clogging water injection inner pipe. A geared motor that drives the spiral feeding rod to rotate is installed at one end of the anti-clogging water injection inner pipe located in the water injection chamber. A waterproof cover is provided on the surface of the geared motor. A water inlet hole communicating with the water injection chamber is opened on the outer wall of the anti-clogging water injection inner pipe.

[0007] Preferably, the connector is plugged into the external salt mine drilling water-soluble injection pipe. The outer wall of the connector has a fixing screw hole for threaded connection with the external salt mine drilling water-soluble injection pipe. This allows for both convenient plug-in connection and secure fixing via the threaded connection. This combined connection method ensures the reliability of the connection between the injection pipe head and the external water injection equipment under the complex working conditions of salt mine drilling, effectively avoiding water injection failures caused by loose connections, guaranteeing the continuity and stability of the water injection process, and improving the efficiency of mining operations.

[0008] Preferably, a sealing sleeve is provided on the outer wall of the connecting socket, which can effectively enhance the sealing performance of the connection between the connecting socket and the external salt mine drilling water-soluble injection pipe. During the water injection process, water flows under high pressure. If the connection is not well sealed, water leakage is likely to occur, which will not only waste water resources, but may also affect the water injection pressure and flow rate, thereby reducing mining efficiency. The sealing sleeve effectively solves this problem and ensures the normal operation of the water injection system.

[0009] Preferably, the sealing sleeve is made of rubber with a thickness of 1-3mm. Rubber material has good elasticity and sealing properties, allowing it to fit tightly against the connection point after the connector is inserted into the external water pipe, filling any possible tiny gaps and further enhancing the sealing effect. The 1-3mm thickness ensures that the sealing sleeve has sufficient strength and elasticity to achieve an effective seal, without being too thick and affecting the insertion and threaded connection of the connector into the external water pipe, thus balancing sealing performance and ease of installation.

[0010] Preferably, the top of the anti-clogging water injection inner pipe is inserted into the water injection chamber, and the bottom of the anti-clogging water injection inner pipe is inserted into the water injection end, so that the anti-clogging water injection inner pipe can be stably installed inside the water injection pipe head, forming a stable water flow channel. Water can smoothly enter the anti-clogging water injection inner pipe from the water injection chamber and finally be delivered to the water injection end, ensuring smooth water flow in the water injection pipe head, providing a stable water supply for salt mine drilling and water-soluble mining, which is conducive to improving mining efficiency.

[0011] Preferably, both the water injection pipe head and the water injection end head include a metal outer shell, providing basic structural support and protection for the equipment.

[0012] Preferably, both the inner and outer walls of the metal outer shell are provided with a rust-proof coating with a thickness of 20-40μm. Since the drilling environment in salt mines is usually quite complex, and may be damp or contain corrosive substances, the rust-proof coating can effectively prevent the metal outer shell from being corroded, extend the service life of the water injection pipe head and water injection end head, reduce the maintenance cost and replacement frequency of the equipment, and ensure the long-term stable operation of salt mine drilling and water-soluble mining.

[0013] Compared with existing technologies, the beneficial effects of this utility model are as follows: In this anti-clogging water injection head for salt mine drilling and water-soluble mining, the water injection head and its internal water injection chamber, along with the anti-clogging water injection inner pipe embedded at the bottom of the water injection head and the spiral feeding rod installed inside the anti-clogging water injection inner pipe, enable the geared motor to drive the spiral feeding rod to rotate continuously inside the anti-clogging water injection inner pipe during salt mine drilling and water-soluble mining. This effectively prevents solid particles or impurities from accumulating and clogging at the water injection end during salt mine drilling. At the same time, the water inlet hole on the outer wall of the anti-clogging water injection inner pipe ensures that water in the water injection chamber can smoothly enter the anti-clogging water injection inner pipe and be transported to the water injection end. The coaxial connection socket at the top of the water injection head facilitates stable connection with external water injection equipment. The overall structure works synergistically to significantly improve the water injection efficiency and mining operation stability during the salt mine drilling and water-soluble mining process. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are explained in detail together with the embodiments of the present invention, but do not constitute a limitation thereof.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the present invention;

[0017] Figure 3 This is a cross-sectional schematic diagram of the water injection pipe head of this utility model;

[0018] 10. Water injection pipe head; 101. Metal outer casing; 102. Rust-proof coating; 11. Water injection chamber; 12. Anti-clogging water injection inner pipe; 13. Gear motor; 14. Screw feeder; 15. Waterproof cover; 16. Water inlet;

[0019] 20. Connecting tube; 21. Sealing sleeve; 22. Fixing screw hole;

[0020] 30. Water inlet end. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments and accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, it should be understood that the terms "center", "vertical", "horizontal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of this utility model and to simplify 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.

[0023] Anti-clogging water injection head in salt mine drilling and water-soluble mining, such as Figures 1-3 As shown, the device includes a water injection pipe head 10 used for dissolving water in salt mine drilling. A connecting socket 20 is coaxially mounted at the top of the water injection pipe head 10, and a water injection end 30 is coaxially mounted at the bottom. The water injection pipe head 10 has a built-in water injection chamber 11. An anti-clogging water injection inner pipe 12 is embedded at the bottom of the water injection pipe head 10. A spiral feeding rod 14 is installed inside the anti-clogging water injection inner pipe 12. A reduction motor 13, which drives the spiral feeding rod 14, is installed at one end of the anti-clogging water injection inner pipe 12 located within the water injection chamber 11. A waterproof cover 15 is provided on the surface of the reduction motor 13. A water inlet hole 16 communicating with the water injection chamber 11 is opened on the outer wall of the anti-clogging water injection inner pipe 12. Through the water injection pipe head 10 and the water injection chamber 11 inside, in conjunction with... The anti-clogging water injection inner pipe 12 embedded at the bottom of the water injection pipe head and the spiral feeding rod 14 installed inside the anti-clogging water injection inner pipe enable the geared motor 13 to drive the spiral feeding rod 14 to rotate continuously inside the anti-clogging water injection inner pipe 12 during salt mine drilling and water-soluble mining. This effectively prevents solid particles or impurities from accumulating and clogging at the water injection end 30 during salt mine drilling. At the same time, the water inlet hole 16 opened on the outer wall of the anti-clogging water injection inner pipe 12 ensures that the water in the water injection chamber 11 can smoothly enter the anti-clogging water injection inner pipe and be transported to the water injection end. The connection socket 20 coaxially set at the top of the water injection pipe head 10 facilitates stable connection with external water injection equipment. The overall structure works synergistically to significantly improve the water injection efficiency and mining operation stability during the salt mine drilling and water-soluble mining process.

[0024] Furthermore, the connecting socket 20 is plugged into the external salt mine drilling water-soluble injection pipe. The outer wall of the connecting socket 20 is provided with a fixing screw hole 22 for threaded connection with the external salt mine drilling water-soluble injection pipe, which makes the connection between the injection pipe head 10 and the external water injection equipment more stable and reliable, facilitates installation and disassembly, and ensures the continuity and stability of the water injection process.

[0025] Specifically, a sealing sleeve 21 is provided on the outer wall of the connecting socket 20. The sealing sleeve 21 is made of rubber and has a thickness of 1-3mm. This effectively enhances the sealing of the connection when the connecting socket 20 is plugged into the external salt mine drilling water-soluble injection pipe, preventing water leakage during the water injection process and improving water injection efficiency and water resource utilization.

[0026] The top of the anti-blocking water injection inner pipe 12 is inserted into the water injection chamber 11, and the bottom of the anti-blocking water injection inner pipe 12 is inserted into the water injection end 30. This allows the anti-blocking water injection inner pipe 12 to be stably installed inside the water injection pipe head 10, ensuring that water is smoothly transported from the water injection chamber 11 through the anti-blocking water injection inner pipe 12 to the water injection end 30, providing a stable water flow channel for salt mine drilling and water-soluble mining.

[0027] In addition, both the water injection pipe head 10 and the water injection end head 30 include a metal outer shell 101. The inner and outer walls of the metal outer shell 101 are provided with a rust-proof coating 102 with a thickness of 20-40μm, which gives the water injection pipe head 10 and the water injection end head 30 good rust prevention performance, extends the service life of the equipment, and reduces equipment failure and maintenance costs caused by rust.

[0028] The working principle of the anti-clogging water injection head in this salt mine drilling water-soluble mining:

[0029] First, the external salt mine drilling water injection pipe is connected to the connection socket 20. The two are then threaded together and fixed using bolts through the fixing screw holes 22 on the outer wall of the connection socket 20. At the same time, the sealing sleeve 21 on the outer wall of the connection socket 20 provides a good seal to prevent water leakage.

[0030] Next, the water injection equipment is started, and water enters the water injection chamber 11 inside the water injection pipe head 10 through the external water injection pipe; the water then enters the anti-clogging water injection inner pipe 12 through the water inlet 16 on the outer wall of the anti-clogging water injection inner pipe 12.

[0031] At the same time, the reduction motor 13 is started, which drives the spiral feeding rod 14 in the anti-clogging water injection inner pipe 12 to rotate. The rotation of the spiral feeding rod 14 can effectively prevent solid particles or impurities from clogging at the water injection end 30 during salt mine drilling, ensuring smooth water flow.

[0032] Finally, water is transported from the bottom of the anti-blocking water injection inner pipe 12 to the water injection end 30 and injected into the salt mine well for water-soluble mining operations. The anti-rust coating 102 on the inner and outer walls of the metal outer shell 101 of the water injection pipe head 10 and the water injection end 30 can resist the corrosion of the complex downhole environment and ensure the long-term stable operation of the equipment.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A water injection head for preventing blockage in salt mine drilling and water-soluble mining, including a water injection pipe head (10) used in salt mine drilling and water-soluble mining, characterized in that: The top end of the water injection pipe head (10) is coaxially provided with a connection socket (20), and the bottom end of the water injection pipe head (10) is coaxially installed with a water injection end (30). The water injection head (10) has a built-in water injection chamber (11). An anti-clogging water injection inner tube (12) is embedded in the bottom of the water injection head (10). A spiral feeding rod (14) is installed in the anti-clogging water injection inner tube (12). A reduction motor (13) that drives the spiral feeding rod (14) to rotate is installed at one end of the anti-clogging water injection inner tube (12) located in the water injection chamber (11). A waterproof cover (15) is provided on the surface of the reduction motor (13). A water inlet hole (16) communicating with the water injection chamber (11) is opened on the outer wall of the anti-clogging water injection inner tube (12).

2. The anti-clogging water injection head for salt mine drilling and water-soluble mining according to claim 1, characterized in that: The connecting socket (20) is connected to the external salt mine drilling water-soluble injection pipe. The outer wall of the connecting socket (20) is provided with a fixing screw hole (22) for threaded connection with the external salt mine drilling water-soluble injection pipe.

3. The anti-clogging water injection head for salt mine drilling and water-soluble mining according to claim 1, characterized in that: A sealing sleeve (21) is provided on the outer wall of the connection socket (20).

4. The anti-clogging water injection head for salt mine drilling and water-soluble mining according to claim 3, characterized in that: The sealing sleeve (21) is made of rubber and has a thickness of 1-3 mm.

5. The anti-clogging water injection head for salt mine drilling and water-soluble mining according to claim 1, characterized in that: The top of the anti-clogging water injection inner tube (12) is inserted into the water injection chamber (11), and the bottom of the anti-clogging water injection inner tube (12) is inserted into the water injection end (30).

6. The anti-clogging water injection head for salt mine drilling and water-soluble mining according to claim 1, characterized in that: Both the water injection pipe head (10) and the water injection end head (30) include a metal outer shell (101).

7. The anti-clogging water injection head for salt mine drilling and water-soluble mining according to claim 6, characterized in that: The inner and outer walls of the metal outer shell (101) are provided with a rust-proof coating (102) with a thickness of 20-40μm.