Double liquid grouting pump equal amount grouting device

Abstract

The present invention discloses a dual-liquid grouting pump equal-volume slurry discharging device, which belongs to the field of dual-liquid grouting pumps. The dual-liquid grouting pump equal-volume slurry discharging device comprises: a mounting base, and also comprises: a mounting platform, fixedly connected to the mounting base; a piston cylinder, symmetrically fixedly arranged on the mounting platform; a piston cavity, arranged in the piston cylinder; a piston plate, sealingly and slidingly connected in the piston cylinder; a piston rod, fixedly connected to the piston plate; a storage barrel, fixedly arranged on one side of the piston cylinder, a storage cavity is arranged in the storage barrel, and the storage cavity is connected to the piston cavity; a pumping pipe and a grouting pipe are fixedly connected to the storage barrel, and both the pumping pipe and the grouting pipe are provided with a one-way valve; the present invention effectively reduces the bubble content in the slurry and improves the accuracy of its grouting, thereby ensuring that the two grouting pipes can discharge slurry in equal amounts, and effectively improves the slurry discharging efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of double-liquid grouting pumps, in particular to an equal-volume grouting device for a double-liquid grouting pump. Background Art

[0002] Grouting and water blocking, gap filling, and grouting consolidation of broken rock formations in gas coal mines at home and abroad, well construction and underground waterproofing projects, large railway and highway tunnels, reservoir dam foundations, and high-rise building foundations are all implemented by grouting pumps. Grouting through grouting pumps can improve its construction efficiency. In some places where high solidification speed requirements are required, a double-liquid grouting pump is required to transport two slurries at the same time, and finally mix them through a mixer and inject them directly. When grouting the two slurries, the equal amount slurry discharge device plays a key role.

[0003] At present, the equal-volume slurry discharge device of the dual-liquid grouting pump adopts two piston mechanisms to extract and discharge the slurry to realize grouting, but part of the slurry needs to be stirred by a stirring device, and then the extraction pipe is connected to the stirring device. Small bubbles may be mixed in the stirring slurry, and the bubbles enter the equal-volume slurry discharge device of the grouting pump and are directly discharged. At this time, the bubbles occupy part of the space of the slurry, which may cause a certain difference in the discharge amount of the two slurries. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a dual-liquid grouting pump equal-volume slurry discharge device that can overcome the above problems or at least partially solve the above problems.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] The equal amount slurry discharge device of a double-liquid grouting pump comprises: a mounting base, and also comprises: a mounting platform fixedly connected to the mounting base; a piston cylinder symmetrically fixedly arranged on the mounting platform; a piston chamber arranged in the piston cylinder; a piston plate sealingly and slidably connected in the piston cylinder; a piston rod fixedly connected to the piston plate; a storage barrel fixedly arranged on one side of the piston cylinder, a storage chamber arranged in the storage barrel, and the storage chamber is communicated with the piston chamber; a pumping pipe and a grouting pipe are fixedly connected to the storage barrel, and both the pumping pipe and the grouting pipe are provided with a one-way valve; a fixed barrel fixedly arranged on the upper side of the storage barrel; a micro-seismic mechanism arranged in the storage barrel; a vacuum assembly arranged in the fixed barrel; and a controller fixedly arranged on the mounting platform.

[0007] To facilitate exhaust, the vacuum assembly further includes a sealing plate arranged in a fixed cylinder, an vacuum pipe is arranged on the sealing plate, a vacuum pump is fixedly connected to the mounting platform, both of the vacuum pipes are connected to the vacuum end of the vacuum pump, an electromagnetic valve is arranged at one end of the vacuum pipe close to the sealing plate, and a pressure gauge is arranged on the vacuum pipe.

[0008] Preferably, a barrier mesh is arranged in the fixed cylinder, and the barrier mesh is arranged on the lower side of the sealing plate.

[0009] In order to improve the efficiency of extracting slurry and compensate for the cavity in the separation chamber, further, an electric telescopic rod is fixedly connected in the fixed cylinder, and the output end of the electric telescopic rod is fixedly connected to the sealing plate.

[0010] In order to improve the efficiency of bubble removal, further, a rotating column is rotatably arranged in the storage barrel, a plurality of partitions are fixedly connected to the rotating column in a circular shape, a partition cavity is arranged between two adjacent partitions, a driving motor is fixedly connected to one side of the storage barrel, and the output end of the driving motor is fixedly connected to the rotating column.

[0011] In order to prevent part of the slurry from adhering to the inner wall of the storage barrel for a long time, preferably, the partition is in contact with the inner wall of the storage barrel.

[0012] In order to facilitate the squeezing of the slurry in the separation chamber, further, the end of the sealing plate is provided with a curved surface, and the barrier mesh is matched with the curved surface.

[0013] In order to facilitate the slow stirring of the slurry in the partition chamber, further, a plurality of sets of elastic plates are fixedly connected in the rotating column, and the elastic plates are arranged between two adjacent partitions.

[0014] In order to facilitate micro-vibration of the elastic plate, the micro-vibration mechanism further includes a vibration motor fixedly arranged in the rotating column, one end of the elastic plate penetrates into the rotating column, and the output end of the vibration motor is fixedly connected to a plurality of dials for moving the elastic plate.

[0015] In order to facilitate the cleaning of the partition plate, further, the rotating column is sealed and connected to the storage barrel flange through a flange plate.

[0016] Compared with the prior art, the present invention provides a dual-liquid grouting pump equal-volume grouting device, which has the following beneficial effects:

[0017] 1. The dual-liquid grouting pump has an equal amount of slurry discharge device. When the piston rod drives the piston plate to slide in the direction away from the storage barrel, the slurry enters the storage barrel through the suction pipe. At this time, the slurry in the storage barrel is vibrated by the micro-vibration mechanism to make the bubbles inside the slurry float to the fixed cylinder; when the piston rod drives the piston plate to slide in the direction of the storage barrel, the slurry with bubbles in the storage barrel is discharged through the grouting pipe, which effectively reduces the bubble content in the slurry, thereby effectively improving the accuracy of its grouting, thereby ensuring that the two grouting pipes can discharge slurry in equal amounts.

[0018] 2. The dual-liquid grouting pump equal-amount slurry discharge device drives the sealing plate to slide upward through the electric telescopic rod, so that a vacuum cavity is formed between the barrier mesh and the sealing plate. The barrier mesh blocks most of the slurry, and the slurry slowly penetrates the barrier mesh. At this time, the vacuum cavity formed between the sealing plate and the barrier mesh facilitates the bubbles in the upper layer of the slurry to float upward, thereby effectively improving the efficiency of removing bubbles in the slurry, and then effectively ensuring the consistency of grouting in the two grouting pipes.

[0019] 3. The dual-liquid grouting pump has an equal amount of slurry discharge device. When the electric telescopic rod drives the sealing plate to move upward, part of the slurry moves toward the fixed cylinder under the action of negative pressure, and part of the slurry penetrates the barrier mesh and enters the fixed cylinder, and the slurry penetration speed is lower than the speed of the sealing plate movement. When the electric telescopic rod moves downward, the slurry in the fixed cylinder is pressed downward to penetrate into the storage chamber through the barrier mesh. At this time, the piston plate is moving, and the speed at which the sealing plate pushes the slurry is no greater than the speed at which the piston plate extracts the slurry, thereby compensating for the slurry that the piston plate needs to extract, thereby effectively improving the efficiency of extracting the slurry and preventing the existence of cavities in the piston chamber or the storage chamber when the slurry is extracted quickly.

[0020] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The present invention effectively reduces the bubble content in the slurry and improves the accuracy of grouting, thereby ensuring that the two grouting pipes can discharge slurry in equal amounts and effectively improving the slurry extraction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the equal amount slurry discharge device of the double liquid grouting pump proposed by the present invention;

[0022] Figure 2 It is a cross-sectional schematic diagram of the equal amount slurry discharge device of the double liquid grouting pump proposed by the present invention;

[0023] Figure 3 It is a cross-sectional schematic diagram of a rotating column, a storage barrel and a fixed barrel in the equal amount slurry discharge device of a double-liquid grouting pump proposed by the present invention;

[0024] Figure 4It is a cross-sectional schematic diagram of a rotating column, a partition plate and a fixed cylinder in the equal amount slurry discharge device of a double-liquid grouting pump proposed by the present invention;

[0025] Figure 5 The invention provides a dual-liquid grouting pump equal-volume grouting device Figure 4 The enlarged schematic diagram of point A in the middle;

[0026] Figure 6 The present invention provides a schematic diagram of the expanded structure of the flange, partition, dial plate and piston cylinder in the equal-volume slurry discharge device of the double-liquid grouting pump.

[0027] In the figure: 1. mounting base; 101. mounting table; 102. piston cylinder; 103. piston rod; 104. piston plate; 105. piston chamber; 106. vacuum pump; 107. controller; 2. storage barrel; 201. extraction pipe; 202. grouting pipe; 203. storage chamber; 3. fixing cylinder; 301. sealing plate; 302. arc surface; 303. barrier mesh; 304. electric telescopic rod; 305. extraction pipe; 306. solenoid valve; 307. pressure gauge; 4. rotating column; 401. partition; 402. partition chamber; 403. elastic plate; 404. vibration motor; 405. toggle plate; 406. drive motor; 407. flange. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] Example 1: Reference Figure 1 , Figure 3 , Figure 4 and Figure 6 , a dual-liquid grouting pump equal-amount slurry discharge device comprises: a mounting base 1, and also comprises: a mounting platform 101, fixedly connected to the mounting base 1; a piston cylinder 102, symmetrically fixedly arranged on the mounting platform 101; a piston chamber 105, arranged in the piston cylinder 102; a piston plate 104, sealingly and slidingly connected in the piston cylinder 102; a piston rod 103, fixedly connected to the piston plate 104; a storage barrel 2, fixedly arranged on one side of the piston cylinder 102, a storage chamber 203 is arranged in the storage barrel 2, and the storage chamber 203 is connected to the piston chamber 105; a pumping pipe 201 and a grouting pipe 202 are fixedly connected to the storage barrel 2, and both the pumping pipe 201 and the grouting pipe 202 are provided with a one-way valve; a fixed cylinder 3, fixedly arranged on the upper side of the storage barrel 2; a micro-seismic mechanism, arranged in the storage barrel 2; a vacuum assembly, arranged in the fixed cylinder 3; a controller 107, fixedly arranged on the mounting platform 101.

[0030] The vacuum pump assembly includes a sealing plate 301 arranged in the fixed cylinder 3, an vacuum pipe 305 is arranged on the sealing plate 301, a vacuum pump 106 is fixedly connected to the mounting platform 101, both vacuum pipes 305 are connected to the vacuum end of the vacuum pump 106, an electromagnetic valve 306 is arranged at one end of the vacuum pipe 305 close to the sealing plate 301, and a pressure gauge 307 is arranged on the vacuum pipe 305.

[0031] A barrier mesh 303 is disposed in the fixed cylinder 3 , and the barrier mesh 303 is disposed on the lower side of the sealing plate 301 .

[0032] An electric telescopic rod 304 is fixedly connected inside the fixed cylinder 3 , and an output end of the electric telescopic rod 304 is fixedly connected to the sealing plate 301 .

[0033] When the grouting pump performs double-liquid grouting, the two piston rods 103 are driven to move alternately or synchronously by a driving mechanism on the grouting pump, wherein the driving mechanism may be a pneumatic driving mechanism, a hydraulic driving mechanism or a motor crankshaft drive.

[0034] When the piston rod 103 drives the piston plate 104 to slide away from the storage barrel 2, the slurry enters the storage barrel 2 through the extraction pipe 201. At this time, the slurry in the storage barrel 2 is vibrated by the micro-vibration mechanism, so that the bubbles in the slurry float up to the fixed cylinder 3.

[0035] When the piston rod 103 drives the piston plate 104 to slide in the direction of the storage barrel 2, the slurry with bubbles in the storage barrel 2 is discharged through the grouting pipe 202, which effectively reduces the bubble content in the slurry, thereby effectively improving the accuracy of its grouting, thereby ensuring that the two grouting pipes 202 can discharge slurry in equal amounts.

[0036] During the process of extracting slurry, the sealing plate 301 is driven to slide upward by the electric telescopic rod 304, so that a vacuum cavity is formed between the barrier mesh 303 and the sealing plate 301, and the barrier mesh 303 blocks most of the slurry, and the slurry slowly penetrates the barrier mesh 303. At this time, the vacuum cavity formed between the sealing plate 301 and the barrier mesh 303 facilitates the bubbles in the upper layer of the slurry to float upward, thereby effectively improving the efficiency of removing bubbles in the slurry, and further effectively ensuring the consistency of grouting in the two grouting pipes 202.

[0037] Reference Figure 2The negative pressure value in the exhaust pipe 305 is detected in real time through the pressure gauge 307. When the sealing plate 301 moves to the set position and stops, the vacuum pump 106 is regulated by the controller 107 at this time, so that the value of the pressure gauge 307 is always maintained at the set value. When the piston rod 103 drives the piston plate 104 to move to the rightmost end, the controller 107 controls the solenoid valve 306 to be closed first, and then controls the electric telescopic rod 304 to drive the sealing plate 301 to slide downward, so that it stops when it slides to the bottom, so that the sealing plate 301 is in contact with the slurry, thereby effectively preventing the large cavity inside during grouting from affecting the accuracy of grouting, wherein, when the sealing plate 301 moves to the bottom, the piston plate 104 also moves to the rightmost end.

[0038] When the electric telescopic rod 304 drives the sealing plate 301 to move upward, part of the slurry moves toward the fixed cylinder 3 under the action of negative pressure, and part of the slurry penetrates the barrier mesh 303 and enters the fixed cylinder 3, and the slurry penetration speed is lower than the movement speed of the sealing plate 301. When the electric telescopic rod 304 moves downward, the slurry in the fixed cylinder 3 is pressed downward, so that it penetrates into the storage chamber 203 through the barrier mesh 303. At this time, the piston plate 104 is moving, and the speed at which the sealing plate 301 pushes the slurry is not greater than the speed at which the piston plate 104 extracts the slurry, thereby compensating for the slurry that the piston plate 104 needs to extract, thereby effectively improving its efficiency in extracting the slurry and preventing the existence of cavities in the piston chamber 105 or the storage chamber 203 when the slurry is extracted quickly.

[0039] Example 2: Reference Figure 2 , Figure 4 and Figure 6 The dual-liquid grouting pump equal-amount slurry discharge device is basically the same as Example 1. Further, a rotating column 4 is rotatably arranged in the storage barrel 2, and a plurality of partitions 401 are fixedly connected to the rotating column 4 in a circular shape, and a partition cavity 402 is arranged between two adjacent partitions 401. A driving motor 406 is fixedly connected to one side of the storage barrel 2, and the output end of the driving motor 406 is fixedly connected to the rotating column 4.

[0040] When extracting slurry, the driving motor 406 drives the rotating column 4 to rotate, and the slurry in the extraction tube 201 enters the partition chamber 402. The slurry in the partition chamber 402 from which bubbles are removed enters the piston chamber 105, and the rotating rotating column 4 drives the slurry that has just entered the partition chamber 402 upward again to remove the bubbles inside. At this time, the setting of multiple partition chambers 402 effectively reduces the depth of the slurry, thereby facilitating the discharge of bubbles in the slurry. In addition, the setting of the partition chamber 402 facilitates the increase of the flow rate of the slurry during extraction, effectively preventing the slurry from adhering to the partition 401 and the storage barrel 2 for a long time.

[0041] When extracting the slurry, the controller 107 controls the driving motor 406 to rotate at a specified speed for a specified number of revolutions.

[0042] During grouting, the controller 107 controls the driving motor 406 to stop, and then the piston rod 103 drives the piston plate 104 to move toward the storage barrel 2 to discharge the slurry in the piston chamber 105. At this time, the grouting pipe 202 is located in one of the partition chambers 402, and the slurry in the piston chamber 105 enters this partition chamber 402 and is discharged through the grouting pipe 202, thereby effectively reducing the bubble content of the discharged slurry.

[0043] The partition 401 is in contact with the inner wall of the storage barrel 2 .

[0044] The partition plate 401 rotating along the rotating column 4 scrapes the inner wall of the storage barrel 2 to prevent the slurry from being attached to the storage barrel 2 for a long time and affecting the fluidity of the slurry.

[0045] Example 3: Reference Figure 2 and Figure 5 The double-liquid grouting pump equal-amount slurry discharge device is basically the same as that in Example 1. Furthermore, a curved surface 302 is provided at the end of the sealing plate 301, and the barrier mesh 303 matches the curved surface 302.

[0046] When the sealing plate 301 with the arc surface 302 moves downward to the lower end of the fixed cylinder 3, the middle part of the arc surface 302 enters into the separation chamber 402 for discharging materials, thereby effectively preventing the separation chamber 402 from having a cavity that affects the accuracy of grouting.

[0047] When the sealing plate 301 moves upward, part of the slurry squeezes the arc-shaped barrier mesh 303. At this time, part of the slurry first squeezes the barrier mesh 303 and pushes it upward. There is part of the slurry in the fixed cylinder 3. When bubbles overflow from the partition chamber 402, there is part of the cavity in the partition chamber 402. At this time, the slurry in the fixed cylinder 3 compensates for the space of the partition chamber 402, thereby effectively improving the efficiency of removing the slurry bubbles in the partition chamber 402.

[0048] A plurality of sets of elastic plates 403 are fixedly connected inside the rotating column 4 , and the elastic plates 403 are arranged between two adjacent partition plates 401 .

[0049] When the piston plate 104 moves to extract the slurry, the slurry in the partition chamber 402 moves toward the piston chamber 105. At this time, the slurry pushes the elastic plate 403 to tilt toward one side of the piston chamber 105. When the partition chamber 402 gradually moves to be no longer connected to the extraction pipe 201, the elastic plate 403 resets itself under the action of its own elasticity, thereby slowly stirring the slurry extracted by the rod in the partition chamber 402, thereby effectively improving the efficiency of the overflow of bubbles inside the slurry.

[0050] Example 4: Reference Figure 3 and Figure 6 The double-liquid grouting pump equal-amount slurry discharge device is basically the same as Example 1. Furthermore, the micro-seismic mechanism includes a vibration motor 404 fixedly arranged in the rotating column 4, one end of the elastic plate 403 penetrates into the rotating column 4, and the output end of the vibration motor 404 is fixedly connected with a plurality of dials 405 for dialing the elastic plate 403.

[0051] The rotating column 4 is flange-sealedly connected to the storage barrel 2 via a flange plate 407 .

[0052] The vibration motor 404 is turned on by the controller 107, and the vibration motor 404 drives the dial 405 to move back and forth. The dial 405 continuously moves back and forth in the rotating column 4, and the end of the elastic plate 403 is moved to vibrate. At this time, the elastic plate 403 located in the separation chamber 402 vibrates slightly, thereby facilitating the discharge of bubbles in the slurry.

[0053] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. Double-liquid grouting pump equal-volume grouting device, including: The mounting base (1) is characterized by further comprising: A mounting platform (101) fixedly connected to the mounting base (1); A piston cylinder (102) is symmetrically fixed on the mounting platform (101); A piston chamber (105) is disposed in the piston cylinder (102); A piston plate (104) is sealingly and slidably connected in the piston cylinder (102); A piston rod (103) fixedly connected to the piston plate (104); A storage barrel (2) is fixedly arranged on one side of the piston cylinder (102), a storage chamber (203) is arranged in the storage barrel (2), and the storage chamber (203) is communicated with the piston chamber (105); The storage barrel (2) is fixedly connected with a material extraction pipe (201) and a grouting pipe (202), and both the material extraction pipe (201) and the grouting pipe (202) are provided with a one-way valve; A fixed cylinder (3) fixedly arranged on the upper side of the storage barrel (2); A micro-vibration mechanism is arranged in the storage barrel (2); An air extraction component is arranged in the fixed cylinder (3); The controller (107) is fixedly mounted on the mounting platform (101).

2. The dual-liquid grouting pump equal-volume grouting device according to claim 1 is characterized in that: The vacuum assembly comprises a sealing plate (301) arranged in a fixed cylinder (3), an vacuum pipe (305) being arranged on the sealing plate (301), a vacuum pump (106) being fixedly connected to the mounting platform (101), the two vacuum pipes (305) being connected to the vacuum end of the vacuum pump (106), a solenoid valve (306) being arranged at one end of the vacuum pipe (305) close to the sealing plate (301), and a pressure gauge (307) being arranged on the vacuum pipe (305).

3. The dual-liquid grouting pump equal-volume grouting device according to claim 1, characterized in that: A barrier mesh (303) is arranged in the fixed cylinder (3), and the barrier mesh (303) is arranged on the lower side of the sealing plate (301).

4. The dual-liquid grouting pump equal-volume grouting device according to claim 1, characterized in that: An electric telescopic rod (304) is fixedly connected inside the fixed cylinder (3), and an output end of the electric telescopic rod (304) is fixedly connected to the sealing plate (301).

5. The dual-liquid grouting pump equal-volume grouting device according to claim 3 is characterized in that: A rotating column (4) is rotatably arranged inside the storage barrel (2), a plurality of partitions (401) are fixedly connected to the rotating column (4) in a circumferential manner, a partition cavity (402) is arranged between two adjacent partitions (401), a driving motor (406) is fixedly connected to one side of the storage barrel (2), and an output end of the driving motor (406) is fixedly connected to the rotating column (4).

6. The dual-liquid grouting pump equal-volume grouting device according to claim 5, characterized in that: The partition (401) is in contact with the inner wall of the storage barrel (2).

7. The dual-liquid grouting pump equal-volume grouting device according to claim 5, characterized in that: The end of the sealing plate (301) is provided with a curved surface (302), and the barrier mesh (303) matches the curved surface (302).

8. The dual-liquid grouting pump equal-volume grouting device according to claim 5, characterized in that: A plurality of groups of elastic plates (403) are fixedly connected inside the rotating column (4), and the elastic plates (403) are arranged between two adjacent partition plates (401).

9. The dual-liquid grouting pump equal-volume grouting device according to claim 8, characterized in that: The micro-vibration mechanism comprises a vibration motor (404) fixedly arranged in a rotating column (4), one end of the elastic plate (403) penetrates into the rotating column (4), and the output end of the vibration motor (404) is fixedly connected to a plurality of dials (405) for dialing the elastic plate (403).

10. The dual-liquid grouting pump equal-volume grouting device according to claim 5, characterized in that: The rotating column (4) is flange-sealedly connected to the storage barrel (2) via a flange plate (407).

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