Quantitative adjustable multifunctional pneumatic grouting device with sealing replacement function

Abstract

The invention discloses a quantitative adjustable multifunctional pneumatic grouting device with a sealing replacement function, and relates to the field of grouting equipment, and the quantitative adjustable multifunctional pneumatic grouting device is characterized in that a driving assembly is arranged at the upper part of a frame, and the driving assembly is used for driving a grouting unit to work; a plugging agent filling pump is further arranged on the frame, the liquid outlet ends of the plugging agent filling pump and the grouting unit are communicated with a mixing valve through pipelines, a mixing pipe is arranged at the outlet end of the mixing valve, and a grouting pipe is arranged at the outlet end of the mixing pipe; the frame is further provided with a counter, and the counter and the driving assembly form a pneumatic loop. A pressurizing assembly is arranged on the frame located on one side of the blocking agent filling pump and used for providing high-pressure gas for the driving assembly and the blocking agent filling pump when the pressure of an external gas source is insufficient. The grouting device has the beneficial effects that the grouting frequency can be accurately set in advance according to construction requirements through a pneumatic loop formed by the pneumatic counter and the driving assembly, and excessive waste of grout or insufficient grouting is effectively avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of grouting equipment, in particular to a quantitative adjustable multifunctional pneumatic grouting device with sealing replacement function. BACKGROUND

[0002] The anchoring agent pumping technology is widely used in mine support, tunnel construction and other fields, and its core is to inject resin, catalyst and other materials mixed in proportion into the anchor rod hole to form a high-strength anchoring body.

[0003] The existing equipment usually adopts a single pump structure, which is difficult to accurately control the mixing ratio of the two-component materials, the mixing valve is designed simply, the materials are not mixed uniformly, and local unreacted areas are prone to occur, reducing the anchoring strength.

[0004] The existing equipment lacks precise quantitative control function, mainly relies on the experience of the operator to start and stop the equipment, which is easy to cause waste of materials due to excessive grouting, or to affect the anchoring strength and quality uniformity due to insufficient grouting, and to bring potential risks to engineering safety.

[0005] At the same time, after the grouting operation is interrupted or completed, the slurry remaining in the mixing valve and the mixing pipe will quickly solidify, causing serious pipeline blockage, the blocked parts cannot be reused, the reinstallation work is extremely tedious, and a large amount of manpower is required and resources are wasted. SUMMARY

[0006] In view of the above technical problems, the present application provides a quantitative adjustable multifunctional pneumatic grouting device with sealing replacement function.

[0007] The technical scheme is that the upper part of the frame is provided with a driving assembly, and the driving assembly is used to drive the grouting unit to work; A plugging agent perfusion pump is also arranged on the frame, the outlet ends of the plugging agent perfusion pump and the grouting unit are respectively connected to a mixing valve through pipelines, the outlet end of the mixing valve is provided with a mixing pipe, and the outlet end of the mixing pipe is provided with a grouting pipe; A counter is also arranged on the frame, the counter is a pneumatic counter, and the counter and the driving assembly form a pneumatic circuit; A booster assembly is arranged on the frame on the side of the plugging agent perfusion pump, and the booster assembly is used to provide high-pressure gas to the driving assembly and the plugging agent perfusion pump when the external gas source pressure is insufficient.

[0008] Preferably, the driving assembly includes a pneumatic motor fixedly arranged on the frame, the output shaft of the pneumatic motor is a plunger rod, and the plunger rod moves linearly along the axial direction, and the end of the plunger rod is fixedly connected with the piston of the grouting unit. The air inlet end of the air motor is connected with an air source through an air inlet pipe, and an air control valve and an oil injector are arranged on the air inlet pipe.

[0009] Preferably, the grouting unit comprises two large-capacity grouting pumps and one small-capacity grouting pump, the small-capacity grouting pump is located between the two large-capacity grouting pumps, the pump bodies of the large-capacity grouting pumps and the small-capacity grouting pump are fixed on the frame through a mounting frame, and the piston rods of the large-capacity grouting pumps and the small-capacity grouting pump are fixed through an adapter plate. The adapter plate is fixedly connected with the output end of the air motor, and the air motor drives the piston rods of the large-capacity grouting pumps and the small-capacity grouting pump to reciprocate.

[0010] Preferably, the areas of the pistons of the two large-capacity grouting pumps are equal and are 2 times the area of the piston of the small-capacity grouting pump. When one of the two large-capacity grouting pumps is connected with the resin material bin and the other is connected with the catalyst material bin, the mixing ratio of the resin and the catalyst is 1:1. When the two large-capacity grouting pumps are connected with the resin material bin, the liquid inlet end of the small-capacity grouting pump is connected with the catalyst material bin through a feeding pipe, and the mixing ratio of the resin and the catalyst is 4:1. The liquid outlet ends of the two large-capacity grouting pumps and the small-capacity grouting pump are connected with a mixing valve through a hose, the outlet end of the mixing valve is connected with a mixing pipe, and the outlet end of the mixing pipe is provided with a grouting pipe.

[0011] Preferably, the plugging agent perfusion pump comprises a pump body arranged on one side of the grouting unit, the pump body is a pneumatic plunger pump, the liquid outlet end of the pneumatic plunger pump is connected with a mixing valve through a hose, the outlet end of the mixing valve is connected with a mixing pipe, and the outlet end of the mixing pipe is provided with a grouting pipe.

[0012] Preferably, the booster assembly comprises a gas storage tank and a booster pump arranged on the frame, the gas inlet end of the gas storage tank is connected with the gas outlet end of the booster pump through a pipeline, and the gas storage tank is provided with a gas outlet end; The outlet end of the gas storage tank is provided with a three-way valve, one of the ports of the three-way valve is connected with the gas outlet end of the gas storage tank, and the other two ports are connected with the air inlet ends of the pneumatic motors of the grouting pump and the plugging pump.

[0013] Preferably, a stirring core is arranged in the mixing pipe.

[0014] The technical scheme provided by the embodiment of the application has the following beneficial effects: 1. The 1:1 / 4:1 double mixing ratio switching is realized through the difference in piston area, and the harsh requirements of different construction occasions such as reinforcement, filling and sealing on material ratio are met; 2. The pneumatic circuit formed by the pneumatic counter and the driving assembly can accurately set the grouting times in advance according to the construction requirements, effectively avoids the excessive waste of grout or insufficient grouting, and ensures the consistency and reliability of the construction quality. 3. The double-gas source supply mode of 'on-site gas source priority and standby pressure boosting assembly' is adopted to ensure that the driving assembly and the plugging agent pump can obtain stable and high-pressure power. 4. The independent plugging agent filling pump can pump the plugging agent into the mixing valve and the mixing pipe after grouting is completed, and thoroughly flush and replace the residual grout. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a schematic diagram of the overall structure of the embodiment of the present application.

[0016] Fig. 2 It is a schematic diagram of the pneumatic motor and the grouting unit of the embodiment of the present application.

[0017] Fig. 3 It is a schematic diagram of the plugging agent filling pump and the pressure boosting assembly of the embodiment of the present application.

[0018] Among them, the reference signs are: 1, frame; 2, driving assembly; 3, grouting unit; 4, plugging agent filling pump; 5, counter; 6, pressure boosting assembly; 7, pneumatic motor; 8, air control valve; 9, oiler; 10, large-capacity grouting pump; 11, small-capacity grouting pump; 12, mounting bracket; 13, adapter plate; 14, gas storage tank; 15, pressure boosting pump. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the present application clearer and more apparent, the present application will be further described in detail below in combination with the drawings and embodiments. Of course, the specific embodiments described here are only used to explain the present application, and are not used to limit the present application.

[0020] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0021] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" and the like can be explicitly or implicitly included one or more. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0022] In the description of the present application, it should be noted that unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0023] Embodiment 1 Referring to Figs. 1 to 3 The present application provides a kind of quantitative adjustable multifunctional pneumatic grouting device with sealing replacement function, including frame 1, the upper portion of frame 1 is provided with drive assembly 2, drive assembly 2 is used to drive grouting unit 3 work; Blocking agent perfusion pump 4 is also provided on frame 1, and the outlet end of blocking agent perfusion pump 4 and grouting unit 3 is communicated with mixing valve through pipeline respectively, the outlet end of mixing valve is provided with mixing pipe, and the outlet end of mixing pipe is provided with grouting pipe; Counter 5 is also provided on frame 1, and counter 5 is pneumatic counter 5, and counter 5 forms pneumatic circuit with drive assembly 2; Pneumatic technology is used to replace electric signal acquisition counting, so that it can meet the use of many electric environments.

[0024] Counting air port (Z port), reset air port (Y port), compressed air inlet (P port) and output signal air port (A port) are provided on counter 5, in order to ensure that the gas source is stable, P port is connected to the total gas source, Z port is connected to the air inlet of air motor 7, A port is connected to the control port of air control valve 8, and Y port is connected to the working port of reset valve (if manual reset is used on the front of counter 5, it can not be connected, an M5 plug or muffler can be connected) When in use, the required cycle number (i.e. the working number of the pneumatic motor) can be set through the pre-set button on the front of the counter 5. The back P port of the counter 5 is connected to a constant pressure (0.2-0.8 MPa) from the total gas source; when the back Z port of the counter 5 receives a gas pressure greater than 0.08 MPa for more than 10 ms, it is regarded as the starting point of the counting cycle; when the gas pressure of the Z port is lower than 0.015 MPa for more than 12 ms, it is regarded as the intermediate point of the counting cycle; when the Z port receives a gas pressure greater than 0.08 MPa for more than 10 ms, it is regarded as the end point of the counting cycle; at the same time, the gear group unit gear of the counter 5 rotates one circle, and the display screen on the front of the counter 5 decreases one number, and the first counting cycle ends.

[0025] For example, in a specific grouting operation scenario, when it is required to stop grouting after completing one hundred grouting operations, the corresponding numerical value can be set on the counter 5, and the counting value is set to 100. During the operation of the grouting pump, when the pneumatic motor 7 performs one reciprocating motion, since the plunger rod of the pneumatic motor 7 is fixedly connected with the piston rod of the large-capacity grouting pump 10 and the small-capacity grouting pump 11 through the adapter plate 13, the piston rod of the large-capacity grouting pump 10 and the small-capacity grouting pump 11 is driven to reciprocate, and the grouting unit 3 is driven to work, thereby realizing one grouting operation, and at this time, the display screen on the front of the counter 5 decreases one number.

[0026] By analogy, when the set counting value is reached, the number on the display screen becomes "00000". The A port on the back of the counter 5 will output a gas signal to the control port of the gas control valve 8, and the gas control valve 8 cuts off the gas, and the first preset counting cycle ends.

[0027] With the continuous progress of the grouting operation, the number of the counter 5 decreases constantly, and when the number displayed on the counter 5 is zero, it indicates that one hundred grouting operations have been completed, at this time, the grouting pump will automatically stop working, ensuring the accuracy and controllability of the grouting operation, avoiding the situation of over-grouting or insufficient grouting, and providing reliable technical support for the coal mine anchoring operation.

[0028] The quantitative grouting operation of the grouting pump is realized through the counter 5. In the coal mine anchoring operation, on the one hand, the grouting material can be saved, and on the other hand, the difference in anchoring strength caused by unstable grouting amount can be avoided, the safety risk caused by insufficient or excessive grouting can be reduced, and the anchoring effect is more predictable and reliable.

[0029] When the reset button on the front of the counter 5 is pressed, or a button valve provides a gas pressure (0.2-0.8 MPa) signal to the Y port on the back of the counter 5, the display screen on the front of the counter 5 becomes the initial set counting value again, and enters the next counting cycle.

[0030] By setting different counting values on the counter 5, various different sizes of grouting operation requirements can be flexibly met, the grouting amount can be accurately controlled, the operator can adjust the grouting plan at any time according to the engineering progress and actual needs, so as to achieve the best anchoring effect.

[0031] For example, in the anchoring operation of a coal mine tunnel, for a tunnel with a length of 100 meters, a width of 5 meters and a height of 4 meters, it is determined through geological exploration that a certain amount of anchoring agent needs to be injected into each cubic meter of rock mass, and through calculation and test, it is determined that the grouting amount is X liters each time. Since the amount of grouting pump each time is constant, through conversion, it is known that the working frequency of the grouting pump is N times each time, then the corresponding counting value (N) is set on the counter 5, so that the grouting pump can accurately operate according to the preset grouting amount when working, and when the counter 5 reaches the set value, the grouting pump automatically stops, ensuring that the anchoring effect of the entire tunnel is uniform and reliable, and avoiding safety hazards caused by insufficient or excessive grouting.

[0032] The booster assembly 6 is arranged on the frame 1 on one side of the plugging agent filling pump 4, and the booster assembly 6 is used to provide high-pressure gas to the driving assembly 2 and the plugging agent filling pump 4 when the external gas source pressure is insufficient.

[0033] The driving assembly 2 and the plugging agent filling pump 4 are preferentially connected to the field gas source, and the pressure is detected by the pressure gauge; if the field gas source pressure is insufficient, the booster assembly 6 is started, and the booster assembly 6 and the field gas source are combined to supply gas, so that the driving assembly 2 and the plugging agent filling pump 4 can obtain stable high-pressure gas; The frame 1 is fixed at a suitable construction position, the preset parameters of the pneumatic counter 5 are adjusted according to the required grouting amount of construction, the grouting quota is set, the driving assembly 2 is started, and the grouting unit 3 starts to work under the drive of the driving assembly 2. The slurry output by the grouting unit 3 is transported to the mixing valve through the pipeline; the mixing valve guides the slurry to the mixing pipe, and after buffering and pressure stabilization in the mixing pipe, the slurry is transported to the grouting operation point through the grouting pipe; at the same time, the pneumatic counter 5 monitors the running state of the driving assembly 2 in real time, and when the grouting amount reaches the preset quota, the counter 5 triggers the driving assembly 2 to stop working through the pneumatic circuit, and the quantitative grouting is completed.

[0034] After grouting is completed, the plugging agent filling pump 4 is started, the plugging agent enters the mixing valve and the mixing pipe through the pipeline, and the residual slurry in the above pipeline is flushed and replaced; the residual slurry replaced out is discharged together with the plugging agent, realizing the sealing and cleaning of the pipeline and avoiding the residual slurry from solidifying and blocking the pipeline.

[0035] The pneumatic circuit formed by the pneumatic counter 5 and the driving assembly 2 can accurately set and control the grouting amount according to the construction requirements, effectively avoid the waste of excessive grout or the influence of insufficient grout on the construction quality; the sealing agent filling pump 4 cooperates with the mixing valve and pipeline to realize the sealing replacement function, can completely remove the residual grout in the pipeline, prevent the pipeline from being blocked, prolong the service life of the equipment, at the same time, reduce the workload of manual disassembly and sealing, improve the maintenance efficiency.

[0036] The driving assembly 2 includes a pneumatic motor 7 fixedly arranged on the frame 1, the output shaft of the pneumatic motor 7 is a plunger rod, and the plunger rod makes reciprocating linear motion along the axial direction, the end of the plunger rod is fixedly connected with the piston of the grouting unit 3, the specific structure of the pneumatic motor 7 is the prior art, and will not be repeated here, the output end of the pneumatic motor 7 is fixedly connected with the piston rod of the grouting unit 3 through the adapter plate 13, and is connected with the booster assembly 6 or the on-site air source, so as to realize the axial reciprocating motion to drive the grouting unit 3 to work; The air inlet end of the pneumatic motor 7 is connected with the air source through the air inlet pipe, and the air control valve 8 and the oiler 9 are arranged on the air inlet pipe.

[0037] Start the equipment, the compressed air enters the pneumatic motor 7 through the air inlet pipe, the pneumatic motor 7 drives the plunger rod to make reciprocating linear motion along the axial direction under the driving of the compressed air, when the plunger rod is extended, the piston of the grouting unit 3 is pushed downward to complete the grout discharging action, and the grout is delivered to the mixing valve through the pipeline; when the piston rod is retracted, the piston of the grouting unit 3 is driven to move upward to complete the grout suction action and supplement the grout.

[0038] The pneumatic counter 5 synchronously monitors the reciprocating times of the pneumatic motor 7, when the preset value is reached, the counter 5 triggers the air control valve 8 to be closed through the pneumatic circuit, the air source is cut off, the pneumatic motor 7 stops working, and the grouting operation is terminated.

[0039] The air control valve 8 is a normally open air control valve, which receives the signal of the counter 5 and closes the air path, when the preset grouting amount is reached, the air control valve 8 can quickly cut off the air source, so as to avoid excessive or insufficient grout, and is especially suitable for scenes with high grouting precision requirements.

[0040] The oiler 9 continuously delivers lubricating oil to the reciprocating parts of the pneumatic motor 7 such as the contact surface between the piston and the cylinder, reduces the wear of the parts, reduces the failure probability, prolongs the service life of the equipment, at the same time, reduces the maintenance cost of manual regular lubrication.

[0041] The grouting unit 3 includes two large-capacity grouting pumps 10 and one small-capacity grouting pump 11, the small-capacity grouting pump 11 is located between the two large-capacity grouting pumps 10, the pump bodies of the large-capacity grouting pump 10 and the small-capacity grouting pump 11 are fixed on the frame 1 through the mounting bracket 12, and the piston rods of the large-capacity grouting pump 10 and the small-capacity grouting pump 11 are fixed through the adapter plate 13; The grouting unit 3 has multiple grouting pumps with different capacities, and can select a grouting mode according to construction requirements, adapt to different material requirements, and meet the requirements of reinforcement, filling, sealing and other occasions. The adapter plate 13 is fixedly connected with the output end of the pneumatic motor 7, and the pneumatic motor 7 drives the piston rods of the large-capacity grouting pump 10 and the small-capacity grouting pump 11 to reciprocate.

[0042] The adapter plate 13 synchronously transmits the power of the pneumatic motor 7 to the piston rods of the three pumps, ensures that the reciprocating movements are completely synchronized, the pump bodies are uniformly fixed to the frame 1 through the mounting bracket 12, the piston rods are centrally driven through the adapter plate 13, the vibration and displacement of the dispersed structure are reduced, the overall stability of the equipment is improved, and the simplified transmission link reduces the mechanical failure probability.

[0043] The areas of the pistons of the two large-capacity grouting pumps 10 are equal and are twice the area of the piston of the small-capacity grouting pump 11. When one of the two large-capacity grouting pumps 10 is connected with the resin material bin and the other is connected with the catalyst material bin, the mixing ratio of the resin and the catalyst is 1:1. When the two large-capacity grouting pumps 10 are connected with the resin material bin, the liquid inlet end of the small-capacity grouting pump 11 is connected with the catalyst material bin through the feeding pipe, and the mixing ratio of the resin and the catalyst is 4:1. The liquid outlet ends of the two large-capacity grouting pumps 10 and the small-capacity grouting pump 11 are connected with the mixing valve through the hose, the outlet end of the mixing valve is connected with the mixing pipe, and the outlet end of the mixing pipe is provided with the grouting pipe.

[0044] By designing the piston area of the large-capacity grouting pump 10 to be twice that of the small-capacity pump and by cooperating the two large-capacity pumps, the output amounts of the resin and the catalyst are stably kept at a ratio of 4:1, precise proportioning can be realized without additional adjusting devices, the reaction efficiency and the curing effect of the mixed slurry are guaranteed, and the problems of insufficient grouting strength or poor curing caused by ratio deviation are avoided.

[0045] The plugging agent perfusion pump 4 includes a pump body arranged on one side of the grouting unit 3, the pump body is a pneumatic plunger pump, the liquid outlet end of the pneumatic plunger pump is connected with the mixing valve through the hose, the outlet end of the mixing valve is connected with the mixing pipe, and the outlet end of the mixing pipe is provided with the grouting pipe.

[0046] The booster assembly 6 includes a gas storage tank 14 and a booster pump 15 arranged on the frame 1, the gas inlet end of the gas storage tank 14 is connected with the gas outlet end of the booster pump 15 through the pipeline, and the gas storage tank 14 is provided with a gas outlet end. The outlet end of the gas storage tank 14 is provided with a three-way valve, one port of the three-way valve is connected with the gas outlet end of the gas storage tank 14, and the other two ports are respectively connected with the air inlet ends of the pneumatic motors of the grouting pump and the plugging pump.

[0047] The pneumatic motor 7 and the pneumatic plunger pump are connected to the field gas source in priority, and the pressure is detected through a pressure gauge; if the pressure of the field gas source is lower than the working threshold of the equipment, the booster pump 15 is started, compressed air is transported to the gas storage tank 14 through the pipeline, and after the pressure of the gas storage tank 14 reaches the preset value, the booster pump 15 is automatically closed, and the gas storage tank 14 is relied on for pressure stabilization; The preset valve control logic is: according to the construction requirement, grouting is carried out first and then sealing is carried out, and the switching sequence of the three-way valve is determined: the valve connected to the pneumatic motor 7 needs to be opened during grouting, and the valve connected to the pneumatic sealing pump needs to be opened during sealing. The valve connected to the pneumatic motor 7 in the three-way valve is opened, high-pressure gas in the gas storage tank 14 enters the pneumatic motor 7, drives the pneumatic motor 7 to drive the piston rod of the grouting unit 3 to reciprocate, and grouting and slurry discharging are completed; at this time, the valve connected to the pneumatic sealing pump in the three-way valve is kept closed, and the sealing agent injection pump 4 is in standby state.

[0048] After grouting is completed, the valve connected to the pneumatic motor 7 in the three-way valve is closed, the valve connected to the pneumatic sealing pump is opened, high-pressure gas drives the pneumatic sealing pump to work, and the sealing agent is output to the mixing valve and the mixing pipe, and sealing is completed. Relying on the logic of “field gas source priority + pressure supplementing assembly 6”, combined with centralized control of the three-way valve, the problem of unstable field gas source can be quickly solved: without disassembling the pipeline, power supply can be realized by starting and stopping the booster pump 15 and switching the valve, which is especially suitable for construction scenes without stable gas source such as field and underground, and avoids delay of construction period caused by gas source problem.

[0049] The stirring core is arranged in the mixing pipe, the stirring core can fully stir and mix the slurry, and the thixotropy effect of the slurry is good.

[0050] When the present application is used, the driving assembly 2 and the sealing agent injection pump 4 are connected to the field gas source in priority, and the pressure is detected through a pressure gauge; if the pressure of the field gas source is insufficient, the booster assembly 6 is switched to combination with the field gas source to ensure that the driving assembly 2 and the sealing agent injection pump 4 obtain stable high-pressure gas; The frame 1 is fixed at a suitable construction position, the preset parameters of the pneumatic counter 5 are adjusted according to the required grouting amount, the grouting quota is set, the driving assembly 2 is started, the grouting unit 3 starts to work, and the slurry output by the grouting unit 3 is transported to the mixing valve through the pipeline; the mixing valve guides the slurry to the mixing pipe, and after the pressure of the mixing pipe is buffered and stabilized, the slurry is transported to the grouting operation point through the grouting pipe; at the same time, the pneumatic counter 5 monitors the running state of the driving assembly 2 in real time, when the grouting amount reaches the preset quota, the counter 5 triggers the driving assembly 2 to stop working through the pneumatic circuit, and the quantitative grouting is completed.

[0051] After the grouting is completed, the plugging agent perfusion pump 4 is started, the plugging agent enters the mixing valve and the mixing pipe through the pipeline, and the residual slurry in the above pipeline is flushed and replaced; the residual slurry replaced out is discharged together with the plugging agent, the pipeline is sealed and cleaned, and the residual slurry is prevented from solidifying and blocking the pipeline.

[0052] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A quantitatively adjustable multifunctional pneumatic grouting device with sealing and replacement function, comprising a frame (1), characterized in that, The upper part of the frame (1) is provided with a drive component (2), which is used to drive the grouting unit (3) to work; A sealing agent injection pump (4) is also provided on the frame (1). The outlet ends of the sealing agent injection pump (4) and the grouting unit (3) are respectively connected to a mixing valve through pipelines. A mixing pipe is provided at the outlet end of the mixing valve, and a grouting pipe is provided at the outlet end of the mixing pipe. A counter (5) is also provided on the frame (1). The counter (5) is a pneumatic counter (5). The counter (5) and the drive component (2) form a pneumatic circuit. A pressurization assembly (6) is provided on the frame (1) located on one side of the plugging agent injection pump (4). The pressurization assembly (6) is used to provide high-pressure gas to the drive assembly (2) and the plugging agent injection pump (4) when the external gas source pressure is insufficient.

2. The quantitatively adjustable multifunctional pneumatic grouting device with sealing and replacement function according to claim 1, characterized in that, The drive assembly (2) includes a pneumatic motor (7) fixedly mounted on the frame (1). The output shaft of the pneumatic motor (7) is a plunger rod, which reciprocates linearly along the axial direction. The end of the plunger rod is fixedly connected to the piston of the grouting unit (3). The air inlet of the pneumatic motor (7) is connected to the air source through the air inlet pipe, and an air control valve (8) and an oil injector (9) are provided on the air inlet pipe.

3. The quantitatively adjustable multifunctional pneumatic grouting device with sealing and replacement function according to claim 2, characterized in that, The grouting unit (3) includes two large-capacity grouting pumps (10) and a small-capacity grouting pump (11). The small-capacity grouting pump (11) is located between the two large-capacity grouting pumps (10). The pump bodies of the large-capacity grouting pumps (10) and the small-capacity grouting pumps (11) are fixed on the frame (1) by mounting brackets (12). The piston rods of the large-capacity grouting pumps (10) and the small-capacity grouting pumps (11) are fixed by adapter plates (13). The adapter plate (13) is fixedly connected to the output end of the pneumatic motor (7), and the pneumatic motor (7) drives the piston rods of the large-capacity grouting pump (10) and the small-capacity grouting pump (11) to reciprocate.

4. The quantitatively adjustable multifunctional pneumatic grouting device with sealing and replacement function according to claim 3, characterized in that, The pistons of the two large-capacity grouting pumps (10) have equal areas and are twice the piston area of ​​the small-capacity grouting pump (11); When one of the two large-capacity grouting pumps (10) is connected to the resin silo and the other is connected to the catalyst silo, the mixing ratio of resin and catalyst is 1:

1. When two large-capacity grouting pumps (10) are connected to the resin silo, the inlet end of the small-capacity grouting pump (11) is connected to the catalyst silo through the feed pipe, and the mixing ratio of resin to catalyst is 4:

1. The outlet ends of the two large-capacity grouting pumps (10) and the small-capacity grouting pump (11) are connected to a mixing valve via hoses. The outlet end of the mixing valve is connected to a mixing pipe, and the outlet end of the mixing pipe is provided with a grouting pipe.

5. The quantitatively adjustable multifunctional pneumatic grouting device with sealing and replacement function according to claim 1, characterized in that, The sealing agent injection pump (4) includes a pump body located on one side of the grouting unit (3). The pump body is a pneumatic plunger pump. The outlet end of the pneumatic plunger pump is connected to a mixing valve through a hose. The outlet end of the mixing valve is connected to a mixing pipe. The outlet end of the mixing pipe is provided with a grouting pipe.

6. The quantitatively adjustable multifunctional pneumatic grouting device with sealing and replacement function according to claim 5, characterized in that, The booster assembly (6) includes an air storage tank (14) and a booster pump (15) disposed on the frame (1). The air inlet of the air storage tank (14) is connected to the air outlet of the booster pump (15) through a pipe. The air storage tank (14) is provided with an air outlet. The outlet end of the gas storage tank (14) is provided with a tee with a valve. One port of the tee is connected to the gas outlet end of the gas storage tank (14), and the other two ports are connected to the air inlet ends of the drive assembly (2) and the sealing agent injection pump (4), respectively.

7. The quantitatively adjustable multifunctional pneumatic grouting device with sealing and replacement function according to claim 4 or 5, characterized in that, A stirring core is installed inside the mixing tube.

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