High-pressure jet grouting curtain grouting equipment

Abstract

The utility model relates to the technical field of grouting equipment, and particularly discloses high-pressure jet grouting curtain grouting equipment which comprises a jet pipe, a straight pipe, a connector, a guide steel pipe and a reducing pipe. The spraying pipe is fixedly connected with a rotary spraying head and is fixedly connected with the direct pipe, the connector is fixedly connected with the guide steel pipe and the direct pipe, the guide steel pipe is fixedly connected with the reducing pipe, the reducing pipe is fixedly connected with a high-pressure pump and a numerical control screen, the high-pressure pump is electrically connected with the numerical control screen, and the numerical control screen is electrically connected with the connector. The high-pressure jet grouting curtain grouting device solves the problem that in the prior art, a guide steel pipe of a high-pressure jet grouting curtain grouting device is prone to being abraded by grouting materials, and therefore the service life is possibly short.

Description

Technical Field

[0001] The utility model relates to the technical field of grouting equipment, in particular to a high-pressure rotary spray curtain grouting equipment. Background Art

[0002] During the tunnel construction process, high-pressure rotary jet curtain grouting equipment is mainly used for pre-support and waterproofing of tunnel walls. It sprays grouting materials into the soil under high pressure to achieve the effects of waterproofing, anti-seepage, reinforcement and soil stabilization.

[0003] The existing high-pressure rotary jet curtain grouting equipment is difficult to effectively control the grouting pressure, flow rate and flow rate and provide a reliable water-stopping effect; the guide steel pipe of the high-pressure rotary jet curtain grouting equipment has the function of supporting the pipeline system and providing the necessary supporting force to share the weight of the pipeline itself and the internal fluid pressure. It is easily worn by the grouting material when transporting the grouting material, which may result in a shorter service life. Utility Model Content

[0004] In order to solve the technical problem that the guide steel pipe of the above-mentioned high-pressure rotary spray curtain grouting equipment is easily worn by the grouting material, which may lead to a short service life, the utility model provides a high-pressure rotary spray curtain grouting equipment.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A high-pressure rotary jet curtain grouting equipment comprises a jet pipe, a direct pipe, a joint, a guide steel pipe and a reducer; the jet pipe is fixedly connected to a rotary nozzle and is fixedly connected to the direct pipe, the joint is fixedly connected to the guide steel pipe and the direct pipe, the guide steel pipe is fixedly connected to the reducer, the reducer is fixedly connected to a high-pressure pump and a numerical control screen, the high-pressure pump is electrically connected to the numerical control screen, and a wear-resistant layer is fixedly arranged inside the guide steel pipe.

[0007] Furthermore, the rotating spray head is provided with a plurality of nozzles.

[0008] Furthermore, a valve is provided on the reducer.

[0009] Furthermore, a mounting tube is fixedly provided on the reducer, an adjusting tube is slidably connected to the mounting tube, and a protective cover is fixedly provided on the adjusting tube.

[0010] Furthermore, the mounting tube is provided with a plurality of vertically arranged adjusting threaded holes, the adjusting tube is threadedly connected with an adjusting bolt, and the adjusting bolt is threadedly connected to the adjusting threaded hole.

[0011] Furthermore, a sealing groove is provided at the top end of the adjusting tube, a sealing tube is fixedly arranged in the sealing groove, and the sealing tube abuts against the mounting tube.

[0012] Furthermore, the number of the adjusting bolts is two, and the two adjusting bolts are symmetrically arranged along the center line of the mounting tube.

[0013] Beneficial effects of the utility model:

[0014] 1. The utility model adopts a wear-resistant layer to improve the wear resistance of the inner side of the guide steel pipe, thereby reducing the wear on the inner side of the guide steel pipe, increasing the service life of the guide steel pipe, and solving the problem that the guide steel pipe of the high-pressure rotary spray curtain grouting equipment is easily worn by the grouting material, which may lead to a short service life;

[0015] 2. The utility model adopts a numerical control screen to adjust the pressure of the high-pressure pump, and controls the grouting pressure and the flow rate and flow velocity of the grouting material by controlling the high-pressure pump, so as to adapt to different grouting requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a high-pressure rotary spray curtain grouting equipment in the utility model;

[0017] Figure 2 for Figure 1 A cross-sectional view of

[0018] Figure 3 for Figure 2 A partial enlarged view of part A;

[0019] Among them, 1-injection pipe, 2-direct pipe, 3-connector, 4-guide steel pipe, 5-valve, 6-reducing pipe, 7-CNC screen, 8-rotating nozzle, 9-high-pressure pump, 10-nozzle, 11-installation pipe, 12-protection cover, 13-adjusting bolt, 14-wear-resistant layer, 15-adjusting threaded hole, 16-sealing pipe, 17-adjusting pipe. DETAILED DESCRIPTION

[0020] In order to deepen the understanding of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. The embodiments are only used to explain the present invention and do not limit the protection scope of the present invention.

[0021] Example:

[0022] The specific implementation process of the utility model is as follows: a high-pressure rotary spray curtain grouting equipment, such as Figure 1 and Figure 2As shown, it includes an injection pipe 1, a direct pipe 2, a joint 3, a guide steel pipe 4 and a reducer 6; the injection pipe 1 is fixedly connected with a rotating nozzle 8, and is fixedly connected with the direct pipe 2, the joint 3 is fixedly connected with the guide steel pipe 4 and the direct pipe 2, the guide steel pipe 4 is fixedly connected with the reducer 6, the reducer 6 is fixedly connected with a high-pressure pump 9 and a CNC screen 7, the high-pressure pump 9 is electrically connected with the CNC screen 7, and a wear-resistant layer 14 is fixedly arranged inside the guide steel pipe 4.

[0023] When grouting is to be performed, the high-pressure pump 9 is started, and the high-pressure pump 9 will pump the grouting material into the reducer 6, and then the grouting material will pass through the guide steel pipe 4, the joint 3, the direct pipe 2 and the injection pipe 1, and finally be sprayed out from the rotary nozzle 8 and enter the soil. The material of the wear-resistant layer 14 can be a carbon nano-polyurethane wear-resistant material.

[0024] like Figure 1 and Figure 2 As shown, the rotating spray head 8 is provided with a plurality of nozzles 10 .

[0025] Multiple nozzles 10 can achieve spray coverage in multiple directions.

[0026] like Figure 1 and Figure 2 As shown, a valve 5 is provided on the reducer 6 .

[0027] The valve 5 can control the flow of the grouting material in the reducer 6 .

[0028] like Figure 1 and Figure 2 As shown, a mounting tube 11 is fixedly provided on the reducer 6 , an adjusting tube 17 is slidably connected to the mounting tube 11 , and a protective cover 12 is fixedly provided on the adjusting tube 17 .

[0029] The protective cover 12 can protect the numerical control screen 7 on the reducer 6 to prevent the grouting material from damaging the numerical control screen 7 .

[0030] like Figure 1-Figure 3 As shown, the mounting tube 11 is provided with a plurality of vertically arranged adjusting threaded holes 15 , the adjusting tube 17 is threadedly connected with an adjusting bolt 13 , and the adjusting bolt 13 is threadedly connected with the adjusting threaded hole 15 .

[0031] The adjusting bolt 13 and the adjusting tube 17 can adjust the position of the protective cover 12 on the mounting tube 11. When adjusting the position of the protective cover 12, first screw the adjusting bolt 13 out of the adjusting threaded hole 15. At this time, the adjusting bolt 13 is still on the adjusting tube 17. Then move the adjusting tube 17. The adjusting tube 17 will move relative to the mounting tube 11 with the protective cover 12 until the protective cover 12 moves to a predetermined position. At this time, the adjusting bolt 13 will align with another adjusting threaded hole 15, and then screw the adjusting bolt 13 into the other adjusting threaded hole 15.

[0032] like Figure 2 and Figure 3 As shown, a sealing groove is formed at the top of the adjusting tube 17 , a sealing tube 16 is fixedly disposed in the sealing groove, and the sealing tube 16 abuts against the mounting tube 11 .

[0033] The sealing tube 16 abuts against the mounting tube 11 , and can seal the gap between the adjusting tube 17 and the mounting tube 11 , thereby preventing the grouting material from flowing down from the gap between the adjusting tube 17 and the mounting tube 11 and contacting the numerical control screen 7 .

[0034] like Figure 1 and Figure 2 As shown, the number of the adjusting bolts 13 is two, and the two adjusting bolts 13 are symmetrically arranged along the center line of the mounting tube 11 .

[0035] The two adjusting bolts 13 can position the two ends of the adjusting tube 17 , thereby improving the stability of the relative position between the adjusting tube 17 and the mounting tube 11 .

[0036] The above embodiments should not limit the present invention in any way, and any technical solutions obtained by equivalent replacement or equivalent conversion shall fall within the protection scope of the present invention.

Claims

1. A high-pressure rotary spray curtain grouting equipment, characterized in that: Including injection pipes, direct pipes, joints, guide steel pipes and reducers; The injection pipe is fixedly connected with a rotating nozzle and is also fixedly connected with the direct pipe. The joint is fixedly connected with the guide steel pipe and the direct pipe. The guide steel pipe is fixedly connected with the reducer. The reducer is fixedly connected with a high-pressure pump and a numerical control screen. The high-pressure pump is electrically connected with the numerical control screen. A wear-resistant layer is fixedly arranged inside the guide steel pipe.

2. A high-pressure rotary spray curtain grouting equipment according to claim 1, characterized in that: The rotating spray head is provided with a plurality of nozzles.

3. The high-pressure rotary spray curtain grouting equipment according to claim 1, characterized in that: The reducer is provided with a valve.

4. The high-pressure rotary spray curtain grouting equipment according to claim 1, characterized in that: A mounting pipe is fixedly arranged on the reducer, an adjusting pipe is slidably connected to the mounting pipe, and a protective cover is fixedly arranged on the adjusting pipe.

5. The high-pressure rotary spray curtain grouting equipment according to claim 4, characterized in that: The mounting tube is provided with a plurality of vertically arranged adjusting threaded holes, the adjusting tube is threadedly connected with adjusting bolts, and the adjusting bolts are threadedly connected with the adjusting threaded holes.

6. The high-pressure rotary spray curtain grouting equipment according to claim 5, characterized in that: A sealing groove is formed at the top of the adjusting tube, a sealing tube is fixedly arranged in the sealing groove, and the sealing tube abuts against the mounting tube.

7. The high-pressure rotary spray curtain grouting equipment according to claim 5, characterized in that: The number of the adjusting bolts is two, and the two adjusting bolts are symmetrically arranged along the center line of the mounting tube.

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