A high-pressure jet grouting device for heavy metal soil remediation
By installing a U-shaped side frame and brush bristles on the outside of the jet grouting drill rod, centrifugal force is used to knock and sweep the inner wall of the soil, which solves the problem of difficult penetration of the agent, achieves better mixing and penetration of the agent with the soil, and improves the remediation effect of heavy metal contaminated soil.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- INNER MONGOLIA YUANTONG HONGSHENG ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-05-26
AI Technical Summary
Existing high-pressure jet grouting equipment has difficulty quickly and fully penetrating remediation agents into heavy metal contaminated soil, resulting in poor mixing of agents with soil particles, affecting the degree of reaction and the scope of remediation, and failing to effectively remediate large areas of contaminated soil.
A U-shaped side frame and side plate are installed on the outside of the jet grouting drill rod. The centrifugal force is used to make the side plate knock against the inner wall of the hole. Combined with the brush cleaning of the inner wall, the soil compaction is broken up, the penetration channels of the agent are increased, and the contact area between the agent and the soil is increased.
By loosening the inner walls of soil pores, the penetration and mixing effect of the agent is enhanced, thereby improving the efficiency and scope of heavy metal remediation.
Smart Images
Figure CN224282535U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rotary jet grouting equipment technology, specifically a high-pressure rotary jet grouting equipment for heavy metal soil remediation. Background Technology
[0002] High-pressure jet grouting equipment for heavy metal soil remediation is a type of engineering machinery specifically designed for the remediation of heavy metal contaminated soil. It combines high-pressure jetting technology with jet grouting process, injecting specific remediation agents into the soil so that the agents react chemically, physically adsorb, or biodegrade with the heavy metal pollutants, thereby reducing the heavy metal content in the soil and improving the soil environmental quality.
[0003] High-pressure jet grouting equipment uses a high-pressure pump to pressurize remediation agents (such as chemical precipitants, chelating agents, and microbial agents), which are then injected into the soil through a specially designed jet grouting drill rod and nozzle at high speed. During the spraying process, the agent mixes thoroughly with soil particles to form a solidified body with a certain strength. At the same time, the agent reacts with heavy metal ions in the soil, fixing or transforming them into low-toxicity, low-migration forms, thus reducing the bioavailability and environmental risks of heavy metals in the soil.
[0004] However, in practical applications, existing high-pressure jet grouting equipment has certain limitations. Soil, especially soil contaminated with heavy metals, often has a complex and compact structure. When the jet grouting drill rod rotates and sprays the agent in the soil, the agent cannot quickly and fully penetrate deep into the soil due to the hard and compact inner wall of the soil. This not only leads to poor mixing between the agent and soil particles, affecting the degree of reaction between the agent and heavy metal pollutants, but also limits the range of action of the remediation agent, making it impossible to effectively remediate a large area of contaminated soil. This reduces the overall soil remediation effect and makes it difficult to achieve the ideal heavy metal pollution control goal. Therefore, a high-pressure jet grouting equipment for heavy metal soil remediation is proposed. Utility Model Content
[0005] To address the shortcomings of existing technologies, this invention provides a high-pressure jet grouting device for heavy metal soil remediation, thereby solving the problems mentioned in the background section.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-pressure jet grouting device for heavy metal soil remediation, comprising:
[0007] A workbench, the upper end of which is equipped with a control cabinet, a mud pump and a high-pressure pump;
[0008] A lifting rail is installed on the upper left side of the workbench. A lifting mechanism is installed on the outside of the lifting rail. A power head is installed on one side of the outside of the lifting mechanism. A rotary jet drill rod is fixedly connected to the output end of the power head.
[0009] The nozzle is installed on the outside of the lower end of the jet grouting drill rod;
[0010] The second side cavity is located outside the rotary jet drill rod and above the nozzle. The upper part of the second side cavity has a first side cavity. A U-shaped side frame is embedded inside the second side cavity. The U-shaped side frame is fixed to the rotary jet drill rod by screws. A telescopic tube is installed on the outer side of the U-shaped side frame. A side plate is fixedly installed on the outer end of the telescopic tube. The outer wall of the side plate has equidistant protrusions. A tension spring is installed inside the telescopic tube, and the two ends of the tension spring are fixedly connected to the side plate and the U-shaped side frame, respectively.
[0011] Preferably, a side block is installed inside the second side cavity, and the side block is fixed to the second side cavity by screws.
[0012] Preferably, the side block is equipped with bristles on its exterior, and the bristles are fixedly connected to the side block. The bristles are used to clean the inner wall of the hole.
[0013] Preferably, hydraulic support legs are installed at all four corners of the workbench, and the hydraulic support legs are fixed to the workbench by bolts. The hydraulic support legs are used to support and fix the workbench.
[0014] Preferably, a moving mechanism is installed at the lower end of the workbench, and the moving mechanism is fixed to the workbench by bolts. The moving mechanism is used to move the workbench.
[0015] Preferably, the control cabinet, mud pump, and high-pressure pump are all fixed to the workbench with bolts.
[0016] Compared with the prior art, this utility model provides a high-pressure jet grouting device for heavy metal soil remediation, which has the following beneficial effects:
[0017] This invention solves the problems mentioned in the background art by installing a U-shaped side frame embedded in the outside of the jet grouting drill rod along a ring. The side plate of the U-shaped side frame is installed on the outside of the side plate by a tension spring. When the jet grouting drill rod rotates to spray the agent and rises, the side plate is thrown out under the centrifugal force, which causes the protrusion to knock against the inner wall of the hole, making the soil inside the hole loose, facilitating the penetration of the agent, improving the soil remediation effect. Attached Figure Description
[0018] Figure 1 This is a perspective view of the overall structure of this utility model;
[0019] Figure 2 This is a partial perspective view of the rotary jet drill rod of this utility model;
[0020] Figure 3 This is a partial sectional view of the rotary jet drill rod of this utility model;
[0021] Figure 4This is a cross-sectional view of the telescopic tube structure of this utility model.
[0022] In the diagram: 1. Workbench; 2. Lifting rail; 3. Lifting mechanism; 4. Power head; 5. Jet jet drill rod; 6. Control cabinet; 7. Nozzle; 8. Mud pump; 9. High-pressure pump; 10. First side cavity; 11. U-shaped side frame; 12. Telescopic pipe; 13. Side plate; 14. Raised strip; 15. Tension spring; 16. Second side cavity; 17. Side block; 18. Brush bristles; 19. Moving mechanism; 20. Hydraulic support leg. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.
[0024] This utility model provides a technical solution: a high-pressure jet grouting device for heavy metal soil remediation. (Please refer to...) Figure 1 , Figure 2 , Figure 3 and Figure 4 ,include:
[0025] Workbench 1, with control cabinet 6, mud pump 8 and high-pressure pump 9 installed on the upper end of workbench 1;
[0026] The lifting rail 2 is installed on the upper left side of the workbench 1. The lifting mechanism 3 is installed on the outside of the lifting rail 2. The power head 4 is installed on one side of the outside of the lifting mechanism 3. The output end of the power head 4 is fixedly connected to the rotary jet drill rod 5.
[0027] Nozzle 7 is installed on the outside of the lower end of the rotary jet drill rod 5;
[0028] The second side cavity 16 is located outside the rotary jet drill rod 5 and above the nozzle 7. The upper part of the second side cavity 16 has a first side cavity 10. A U-shaped side frame 11 is embedded inside the second side cavity 16. The U-shaped side frame 11 is fixed to the rotary jet drill rod 5 by screws. A telescopic tube 12 is installed on one side of the U-shaped side frame 11. A side plate 13 is fixedly installed on one end of the telescopic tube 12. The outer wall of the side plate 13 has equidistant protrusions 14. A tension spring 15 is installed inside the telescopic tube 12, and the two ends of the tension spring 15 are fixedly connected to the side plate 13 and the U-shaped side frame 11, respectively.
[0029] Please see Figure 2 and Figure 3 A side block 17 is installed inside the second side cavity 16, and the side block 17 is fixed to the second side cavity 16 by screws.
[0030] Please see Figure 2 and Figure 3 The side block 17 is equipped with bristles 18, and the bristles 18 are fixedly connected to the side block 17. The bristles 18 are used to clean the inner wall of the hole.
[0031] Please see Figure 1 Hydraulic support legs 20 are installed at each of the four corners of the workbench 1, and the hydraulic support legs 20 are fixed to the workbench 1 by bolts. The hydraulic support legs 20 are used to support and fix the workbench 1.
[0032] Please see Figure 1 A moving mechanism 19 is installed at the lower end of the worktable 1, and the moving mechanism 19 is fixed to the worktable 1 by bolts. The moving mechanism 19 is used to move the worktable 1.
[0033] Please see Figure 1 The control cabinet 6, mud pump 8 and high-pressure pump 9 are all fixed to the workbench 1 with bolts.
[0034] This scheme involves connecting the mud source to the input end of the mud pump 8 and the repair agent to the input end of the high-pressure pump 9. The lifting mechanism 3 is controlled to drive the power head 4 and the rotary jet drill rod 5 into the borehole along the lifting track 2. During descent, the rotary jet drill rod 5 is controlled to rotate slowly while the mud pump 8 is started, spraying mud through the nozzle 7. This allows the mud to circulate between the drill rod and the borehole. The mud serves to cool the drill bit, lubricate the drill rod, and carry drill cuttings, ensuring smooth drilling operations. When the rotary jet drill rod 5 reaches the designed depth, drilling stops, the drill rod is kept rotating, and the rotation speed is increased. Under centrifugal force, the side plate 13 moves outward, the telescopic tube 12 extends, and the tension spring 15 is stretched and deformed. At this time, the protrusion 14 on the outside of the side plate 13 contacts the inner wall of the hole, while the bristles 18 contact the inside of the hole. Upon contact with the soil wall, the high-pressure pump 9 is activated to inject the remediation agent into the soil through the nozzle 7. Simultaneously, the rotary jet drill rod 5 is raised. The collision between the protrusion 14 and the inner wall of the hole breaks up the compaction of the inner wall, making the soil loose and increasing its porosity. This provides more penetration channels for the agent and increases the contact area between the agent and the soil. During the operation of the rotary jet drill rod 5, drill cuttings, soil, and any impurities may adhere to the hole wall. The brush bristles 18 scrape the inner wall of the hole to thoroughly clean these attachments. When the protrusion 14 strikes the inner wall of the hole, some loose impurities may temporarily adhere to the hole wall. The brush bristles 18 then sweep over to remove these residues. The clean hole wall facilitates better spraying and penetration of the agent into the soil, improving the contact effect between the agent and the soil, thereby enhancing the remediation effect of heavy metals.
[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A high-pressure jet grouting device for heavy metal soil remediation, characterized in that, include: Workbench (1), the upper end of which is equipped with control cabinet (6), mud pump (8) and high pressure pump (9); A lifting track (2) is installed on the upper left side of the workbench (1). A lifting mechanism (3) is installed on the outside of the lifting track (2). A power head (4) is installed on one side of the outside of the lifting mechanism (3). A rotary jet drill rod (5) is fixedly connected to the output end of the power head (4). The nozzle (7) is installed on the outside of the lower end of the jet grouting drill rod (5); The second side cavity (16) is located outside the rotary jet drill rod (5) and above the nozzle (7). The upper part of the second side cavity (16) is provided with a first side cavity (10). A U-shaped side frame (11) is embedded inside the second side cavity (16). The U-shaped side frame (11) is fixed to the rotary jet drill rod (5) by screws. A telescopic tube (12) is installed on one side of the U-shaped side frame (11). A side plate (13) is fixedly installed on one end of the telescopic tube (12). The outer wall of the side plate (13) is equidistantly distributed with protrusions (14). A tension spring (15) is installed inside the telescopic tube (12), and the two ends of the tension spring (15) are fixedly connected to the side plate (13) and the U-shaped side frame (11) respectively.
2. The high-pressure jet grouting equipment for heavy metal soil remediation according to claim 1, characterized in that: A side block (17) is installed inside the second side cavity (16), and the side block (17) is fixed to the second side cavity (16) by screws.
3. The high-pressure jet grouting equipment for heavy metal soil remediation according to claim 2, characterized in that: The side block (17) is fitted with bristles (18) on its exterior, and the bristles (18) are fixedly connected to the side block (17).
4. The high-pressure jet grouting equipment for heavy metal soil remediation according to claim 1, characterized in that: Hydraulic support legs (20) are installed at all four corners of the workbench (1), and the hydraulic support legs (20) are fixed to the workbench (1) by bolts.
5. The high-pressure jet grouting equipment for heavy metal soil remediation according to claim 1, characterized in that: The lower end of the workbench (1) is equipped with a moving mechanism (19), and the moving mechanism (19) is fixed to the workbench (1) by bolts.
6. The high-pressure jet grouting equipment for heavy metal soil remediation according to claim 1, characterized in that: The control cabinet (6), mud pump (8) and high-pressure pump (9) are all fixed to the workbench (1) by bolts.