Concrete spraying device based on waste soil recovery and construction method

Abstract

The invention belongs to the technical field of tunnel construction, and particularly relates to a concrete spraying device based on waste soil recycling and a construction method.The concrete spraying device comprises a mixing tank and a recycling frame located on one side of the mixing tank, a clear water spraying mechanism is arranged in the mixing tank, and meanwhile a spiral stirring mechanism is arranged in the mixing tank; and a concrete spraying mechanism is arranged on the surface of the recycling frame. According to the concrete spraying device based on waste soil recovery and the construction method, by arranging the concrete spraying mechanism, the mode of manually holding a spraying gun to spray is conveniently replaced, falling concrete can be conveniently collected to be reused, meanwhile, a concave base and a sliding block can be rapidly disassembled and assembled, then the spraying gun is conveniently maintained, and the construction efficiency is improved. And under the action of a servo motor and a rotating motor, the spray gun can automatically move left and right and deflect up and down, so that the concrete construction efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel construction, and in particular to a concrete spraying device and a construction method based on waste soil recovery. Background Art

[0002] Shotcrete is a common construction technique used primarily in underground projects, tunnel construction, slope reinforcement, and repair projects. Its basic process involves the following steps: Mixing materials: First, cement, sand, gravel, and water are mixed according to the designed proportions; Transporting: The mixed concrete is pumped to the spray nozzle, preferably through pipes to prevent separation during transportation; Spraying: The concrete is sprayed onto the construction surface at high speed through a nozzle; Curing and curing: The sprayed concrete takes time to cure and harden.

[0003] During tunnel excavation, construction workers generally use handheld spray guns to spray concrete on the tunnel construction surface. However, in order to ensure that the concrete can adhere tightly to the construction surface, the spray speed of the spray gun needs to be very high. When using a handheld spray gun, the impact force can easily cause physical damage to the operator. At the same time, the handheld method cannot accurately spray concrete onto the construction surface, resulting in low construction efficiency. In addition, during the spraying process, some waste and rebound materials may fall to the ground, which not only causes waste, but also easily causes the fallen concrete to solidify and harden, making it difficult to clean up, thereby affecting the construction progress. Summary of the Invention

[0004] Based on the above-mentioned existing technical problems, the present invention proposes a concrete spraying device and construction method based on waste soil recovery.

[0005] The present invention proposes a concrete spraying device based on waste soil recovery, which includes a mixing tank and a recovery frame located on one side of the mixing tank. A clean water spraying mechanism is provided inside the mixing tank, and a spiral stirring mechanism is provided inside the mixing tank. A concrete spraying mechanism is provided on the surface of the recovery frame.

[0006] The clean water injection mechanism is used to add clean water into the mixing tank and facilitates cleaning of the spiral stirring mechanism.

[0007] The spiral stirring mechanism is used to allow the sand, cement, gravel and water separated from the spoil to enter the mixing tank through the conical feed port of the mixing tank and mix them together.

[0008] The concrete spraying mechanism is used to spray the mixed concrete onto the tunnel construction surface at high speed.

[0009] Preferably, the clean water injection mechanism includes grooves symmetrically distributed on the inner wall of the mixing tank, a limiting plate is fixedly installed on the inner wall of the groove, a limiting groove is provided on the surface of the limiting plate, the inner wall of the limiting groove is slidably connected with a sliding rod, an arc-shaped diverter is fixedly connected between the two sliding rods, and the surface of the arc-shaped diverter is slidably connected to the inner wall of the mixing tank.

[0010] Through the above technical solution, the arc-shaped diverter is driven to move along the inner wall of the mixing tank by the movement of the sliding rod along the inner wall of the limiting groove.

[0011] Preferably, a slide groove is provided on the surface of the mixing tank, and the slide groove is connected to the inner wall of one of the grooves, and the inner wall of the slide groove is slidably engaged with a first rack, and one end of one of the sliding rods is fixedly connected to the surface of the first rack, and a support block is fixedly connected to the bracket surface of the mixing tank, and a drive motor is fixedly installed on the upper surface of the support block, and one end of the output shaft of the drive motor is fixedly sleeved with a first gear, and the first gear is meshed with the first rack.

[0012] Through the above technical solution, the rotation of the output shaft of the driving motor drives the first gear connected to it to rotate, and the rotation of the first gear drives the first rack engaged with it to slide along the inner wall of the slide groove. The movement of the first rack drives the slide rod connected to it to move along the inner wall of the limit groove on the limit plate. The movement of the slide rod drives the arc diverter to move along the inner wall of the mixing tank, and drives another slide rod to move along the inner wall of the limit groove of the limit plate.

[0013] Preferably, the diversion port of the arc-shaped diverter is fixedly connected to a nozzle, the surface of the arc-shaped diverter is fixedly connected to a water pipe, the outer surface of the mixing tank is provided with a water tank, the upper surface of the water tank is fixedly installed with a suction pump, and the suction pump introduces the water in the water tank into the arc-shaped diverter through the water pipe.

[0014] Through the above technical solution, clean water is sprayed out through the nozzle.

[0015] Preferably, the spiral stirring mechanism includes support plates symmetrically distributed on the inner wall of the mixing tank, and a rotating shaft is connected through the surfaces of the two support plates. Both ends of the rotating shaft are installed on the inner wall of the mixing tank through bearings. A stepper motor is fixedly installed on the outer surface of the mixing tank, and one end of the output shaft of the stepper motor is fixedly sleeved with one end of the rotating shaft.

[0016] According to the above technical solution, the rotation of the output shaft of the stepping motor drives the rotating shaft connected thereto to rotate, and the rotation of the rotating shaft drives the support plate to rotate.

[0017] Preferably, a stirring shaft is installed on the surface of the opposite side of the two support plates through a bearing, and a spiral blade is provided on the surface of the stirring shaft. A rotating motor is fixedly installed on the inner wall of one of the support plates, and one end of the output shaft of the rotating motor is fixedly sleeved with one end of the stirring shaft.

[0018] According to the above technical solution, the rotation of the output shaft of the rotary motor drives the stirring shaft connected thereto to rotate, and the rotation of the stirring shaft drives the spiral blades to rotate.

[0019] Preferably, the concrete spraying mechanism includes a vibrating screen arranged at the bottom of the mixing tank, the bottom of the vibrating screen is fixedly connected to a material delivery pipe, the middle end of the material delivery pipe is provided with a booster pump, one end of the material delivery pipe is fixedly connected to a spray gun, a recovery trough is provided on the surface of the recovery frame, the lower surface of the recovery trough is fixedly connected to a recovery pipe, and the free end of the recovery pipe is fixedly connected to the surface of the material delivery pipe.

[0020] Through the above technical solution, the mixed concrete is introduced into the vibrating screen through the discharge port at the bottom of the mixing tank, and the concrete is screened by the vibrating screen to improve the quality of the concrete. The booster pump is started, and the booster pump transports the concrete to the spray gun through the feed pipe. The concrete is then sprayed at high speed onto the tunnel construction surface through the spray gun. The concrete that falls during the spraying process falls into the recovery tank on the recovery frame, which is convenient for the collected concrete to be reused through the feed pipe under the action of the booster pump, so as to save resources and achieve civilized construction.

[0021] Preferably, a mounting groove is provided on the surface of the recovery frame, a screw is installed on the inner wall of the mounting groove through a bearing, a servo motor is fixedly installed on the surface of the recovery frame, one end of the output shaft of the servo motor is fixedly sleeved on one end of the screw, a slider is threadedly sleeved on the surface of the screw, the surface of the slider is slidably connected to the inner wall of the mounting groove, a concave seat is provided on one side surface of the slider, the inner surface of the concave seat is hinged to the surface of the spray gun through a pin shaft, a rotating motor is fixedly installed on the outer surface of the concave seat, and one end of the output shaft of the rotating motor is fixedly sleeved on one end of the pin shaft.

[0022] Through the above technical solution, the rotation of the servo motor output shaft drives the screw connected to it to rotate, the rotation of the screw drives the slider to move along the inner wall of the mounting groove, the movement of the slider drives the spray gun to move through the concave seat, and the rotation of the motor output shaft drives the pin shaft connected to it to rotate, and the rotation of the pin shaft drives the spray gun to deflect up and down.

[0023] The top of the gear train is equipped with a gear that is engaged with the gear of the control wheel, and the gear train is equipped with a gear that is engaged with the gear of the control wheel.

[0024] Through the above technical solution, the second rack connected to it is driven to move by pushing the extension and contraction of the cylinder piston rod. The movement of the second rack drives the second gear to rotate through engagement with the second gear. The rotation of the second gear drives the inclined groove to rotate. The rotation of the inclined groove drives the connecting rod to move. The movement of the connecting rod drives the guide block to move along the inner wall of the guide groove, thereby clamping the clamping column through the guide block.

[0025] The present invention proposes a construction method for a concrete spraying device based on waste soil recovery, and the construction method is as follows:

[0026] S1. When in use, separate construction sand, concrete, bricks and mud from waste soil, mix cement, sand and gravel according to the designed proportion and pour them into the mixing tank through the feeding port of the mixing tank.

[0027] S2. Then start the suction pump, which pours the clean water in the water tank into the arc-shaped diverter through the water pipe and then sprays it out through the nozzle. At the same time, start the drive motor. The rotation of the output shaft of the drive motor drives the first gear connected to it to rotate. The rotation of the first gear drives the first rack engaged with it to slide along the inner wall of the slide groove. The movement of the first rack drives the sliding rod connected to it to move along the inner wall of the limiting groove on the limiting plate. The movement of the sliding rod drives the arc-shaped diverter to move along the inner wall of the mixing tank, and drives the other sliding rod to move along the inner wall of the limiting groove of the limiting plate, thereby driving the arc-shaped diverter to move along the inner wall of the mixing tank.

[0028] S3. Restart the rotary motor. The rotation of the output shaft of the rotary motor drives the stirring shaft connected thereto to rotate. The rotation of the stirring shaft drives the spiral blades to rotate. At the same time, start the stepper motor. The rotation of the output shaft of the stepper motor drives the rotating shaft connected thereto to rotate. The rotation of the rotating shaft drives the support plate to rotate. The rotation of the support plate drives the spiral blades to deflect left and right through the stirring shaft, thereby facilitating the mixing of the raw materials in the mixing tank into concrete.

[0029] S4. Then install the concave seat onto the slider, engage the clamping column with the clamping groove, push the cylinder piston rod to extend, and drive the second rack connected to it to move upward. The upward movement of the second rack drives the second gear to rotate through the engagement with the second gear. The rotation of the second gear drives the inclined groove to rotate. The rotation of the inclined groove drives the connecting rod to move. The movement of the connecting rod drives the guide block to move out along the inner wall of the guide groove, so that the guide block can clamp the clamping column.

[0030] S5. The mixed concrete falls onto the vibrating screen through the discharge port. The booster pump is started. The concrete screened by the vibrating screen is transported to the spray gun through the feed pipe under the action of the booster pump. The concrete is then sprayed onto the tunnel construction surface at high speed through the spray gun. The concrete that falls during the spraying process falls into the recovery tank on the recovery frame. The collected concrete is then returned to the feed pipe through the recovery pipe under the action of the booster pump for reuse.

[0031] S6. During the spraying process, the servo motor and the rotary motor are started separately as needed. The rotation of the servo motor output shaft drives the screw connected to it to rotate. The rotation of the screw drives the slider to move along the inner wall of the installation groove. The movement of the slider drives the spray gun to move left and right through the concave seat. The rotation of the rotary motor output shaft drives the pin shaft connected to it to rotate. The rotation of the pin shaft drives the spray gun to deflect up and down.

[0032] The beneficial effects of the present invention are:

[0033] 1. By setting up a concrete spraying mechanism, it is not only convenient to replace the manual handheld spraying method, but also convenient to collect the fallen concrete for reuse. At the same time, the concave seat and the slider can be quickly disassembled and assembled, which makes it easy to repair the spray gun. Under the action of the servo motor and the rotating motor, the spray gun can automatically move left and right and deflect up and down, thereby improving the efficiency of concrete construction.

[0034] 2. By setting up a spiral stirring mechanism, the spiral blades are made to stick to the surface of the mixing tank and swing left and right under the action of the stepping motor, and the spiral blades are rotated under the action of the rotating motor, thereby improving the stirring efficiency and achieving uniform stirring.

[0035] 3. By setting up a clean water spraying mechanism, it is not only convenient to add clean water to the mixing tank, but also the surface of the spiral stirring mechanism can be flushed when the clean water is sprayed, thereby preventing concrete from adhering to the mixing tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a schematic diagram of a concrete spraying device based on waste soil recycling proposed by the present invention;

[0037] Figure 2This is a three-dimensional diagram of the first rack structure of a concrete spraying device based on waste soil recycling proposed by the present invention;

[0038] Figure 3 This is a three-dimensional diagram of the arc-shaped diverter structure of a concrete spraying device based on waste soil recycling proposed by the present invention;

[0039] Figure 4 This is a three-dimensional diagram of the sliding rod structure of a concrete spraying device based on waste soil recycling proposed by the present invention;

[0040] Figure 5 This is a three-dimensional diagram of the groove structure of a concrete spraying device based on waste soil recycling proposed by the present invention;

[0041] Figure 6 This is a three-dimensional diagram of the spiral blade structure of a concrete spraying device based on waste soil recycling proposed by the present invention;

[0042] Figure 7 This is a three-dimensional diagram of the rotating motor structure of a concrete spraying device based on waste soil recycling proposed by the present invention;

[0043] Figure 8 This is a three-dimensional diagram of the recovery frame structure of a concrete spraying device based on waste soil recovery proposed by the present invention;

[0044] Figure 9 A three-dimensional diagram of the concave seat structure of a concrete spraying device based on waste soil recycling proposed by the present invention;

[0045] Figure 10 This is a three-dimensional diagram of the column structure of a concrete spraying device based on waste soil recycling proposed by the present invention;

[0046] Figure 11 This is a three-dimensional diagram of the second rack structure of a concrete spraying device based on waste soil recycling proposed by the present invention;

[0047] Figure 12 This is a three-dimensional diagram of the guide block structure of a concrete spraying device based on waste soil recycling proposed by the present invention;

[0048] Figure 13 This is a three-dimensional diagram of the guide groove structure of a concrete spraying device based on waste soil recovery proposed by the present invention.

[0049] In the figure: 1. Mixing tank; 2. Recovery frame; 3. Groove; 301. Limiting plate; 302. Limiting groove; 303. Sliding rod; 304. Arc diverter; 305. Sliding groove; 306. First rack; 307. Support block; 308. Driving motor; 309. First gear; 310. Nozzle; 311. Water pipe; 312. Water tank; 313. Suction pump; 4. Support plate; 41. Rotating shaft; 42. Stepping motor; 43. Stirring shaft; 44. Screw blade; 45. Rotating motor; 5. Vibrating screen; 50 1. Feed pipeline; 502. Booster pump; 503. Spray gun; 504. Recovery tank; 505. Recovery pipeline; 506. Mounting tank; 507. Screw; 508. Servo motor; 509. Slider; 510. Concave seat; 511. Rotating motor; 512. Push cylinder; 513. Second rack; 514. Clamping column; 515. Clamping tank; 516. Rotating tank; 517. Limiting ring; 518. Second gear; 519. Inclined tank; 520. Connecting rod; 521. Guide tank; 522. Guide block. DETAILED DESCRIPTION

[0050] The technical solutions in the embodiments of the present invention will be clearly and completely described 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.

[0051] Reference Figures 1-13 A concrete spraying device based on waste soil recycling includes a mixing tank 1 and a recovery frame 2 located on one side of the mixing tank 1. A clean water spraying mechanism is provided inside the mixing tank 1. A spiral stirring mechanism is provided inside the mixing tank 1. A concrete spraying mechanism is provided on the surface of the recovery frame 2.

[0052] Among them, in order to add clean water into the mixing tank 1, a clean water injection mechanism is provided, including grooves 3 symmetrically distributed on the inner wall of the mixing tank 1. A limiting plate 301 is fixedly installed on the inner wall of the groove 3. A limiting groove 302 is provided on the surface of the limiting plate 301. The inner wall of the limiting groove 302 is slidably connected with a slide rod 303. An arc-shaped diverter 304 is fixedly connected between the two slide rods 303. The surface of the arc-shaped diverter 304 is slidably connected to the inner wall of the mixing tank 1. The diversion port of the arc-shaped diverter 304 is fixedly connected with a nozzle 310, and the clean water is sprayed out through the nozzle 310 on the arc-shaped diverter 304.

[0053] In order to facilitate the nozzle 310 to spray clean water, a water pipe 311 is fixedly connected to the surface of the arc-shaped diverter 304, a water tank 312 is provided on the outer surface of the mixing tank 1, and a suction pump 313 is fixedly installed on the upper surface of the water tank 312. The suction pump 313 introduces the water in the water tank 312 into the arc-shaped diverter 304 through the water pipe 311.

[0054] In order to drive the arc diverter 304 to move, a slide groove 305 is provided on the surface of the mixing tank 1. The slide groove 305 is connected to the inner wall of one of the grooves 3. The inner wall of the slide groove 305 is slidably connected with a first rack 306. One end of one slide rod 303 is fixedly connected to the surface of the first rack 306. The bracket surface of the mixing tank 1 is fixedly connected with a support block 307. The upper surface of the support block 307 is fixedly installed with a drive motor 308. One end of the output shaft of the drive motor 308 is fixedly sleeved with a first gear 309. The first gear 309 is meshed with the first rack 306. The rotation of the output shaft of the driving motor 308 drives the first gear 309 connected to it to rotate, and the rotation of the first gear 309 drives the first rack 306 engaged with it to slide along the inner wall of the slide groove 305. The movement of the first rack 306 drives the slide rod 303 connected to it to move along the inner wall of the limiting groove 302 on the limiting plate 301. The movement of the slide rod 303 drives the arc diverter 304 to move along the inner wall of the mixing tank 1, and drives another slide rod 303 to move along the inner wall of the limiting groove 302 of the limiting plate 301, thereby driving the arc diverter 304 to move through the slide rod 303.

[0055] By providing the clean water spraying mechanism, it is not only convenient to add clean water to the mixing tank 1 , but also possible to flush the surface of the spiral stirring mechanism when spraying clean water, thereby preventing concrete from adhering to the mixing tank 1 .

[0056] Among them, in order to allow the sand, cement, gravel and water separated from the waste soil to enter the mixing tank 1 through the conical feed port of the mixing tank 1 and mix them together, a spiral stirring mechanism is provided, including support plates 4 symmetrically distributed on the inner wall of the mixing tank 1, and the surfaces of the two support plates 4 are connected with a rotating shaft 41, both ends of the rotating shaft 41 are installed on the inner wall of the mixing tank 1 through bearings, and a stepper motor 42 is fixedly installed on the outer surface of the mixing tank 1. One end of the output shaft of the stepper motor 42 is fixedly connected to one end of the rotating shaft 41, and the rotation of the output shaft of the stepper motor 42 drives the rotating shaft 41 connected thereto to rotate, and the rotation of the rotating shaft 41 drives the support plates 4 to rotate, and the setting of the stepper motor 42 causes the support plates 4 to deflect left and right.

[0057] In order to facilitate stirring, stirring shafts 43 are installed on the surfaces of opposite sides of the two support plates 4 through bearings, and spiral pieces 44 are provided on the surfaces of the stirring shafts 43. A rotating motor 45 is fixedly installed on the inner wall of one of the support plates 4. One end of the output shaft of the rotating motor 45 is fixedly connected with one end of the stirring shaft 43. The rotation of the output shaft of the rotating motor 45 drives the stirring shaft 43 connected thereto to rotate, and the rotation of the stirring shaft 43 drives the spiral piece 44 to rotate, and the rotation of the support plate 4 causes the spiral piece 44 to swing left and right, thereby facilitating uniform stirring.

[0058] By setting up a spiral stirring mechanism, the spiral blade 44 is made to stick to the surface of the mixing tank 1 and swing left and right under the action of the stepping motor 42, and the spiral blade 44 is rotated under the action of the rotating motor 45, thereby improving the stirring efficiency and achieving uniform stirring.

[0059] Among them, in order to spray the mixed concrete onto the tunnel construction surface at high speed, the concrete spraying mechanism includes a vibrating screen 5 arranged at the bottom of the mixing tank 1, the bottom of the vibrating screen 5 is fixedly connected to a material delivery pipe 501, the middle end of the material delivery pipe 501 is provided with a booster pump 502, one end of the material delivery pipe 501 is fixedly connected to a spray gun 503, a recovery trough 504 is provided on the surface of the recovery frame 2, the lower surface of the recovery trough 504 is fixedly connected to a recovery pipe 505, the free end of the recovery pipe 505 is fixedly connected to the surface of the material delivery pipe 501 The mixed concrete is introduced into the vibrating screen 5 through the discharge port at the bottom of the mixing tank 1, the concrete is screened by the vibrating screen 5, and is transported to the spray gun 503 through the feeding pipe 501 under the action of the booster pump 502. Then, the concrete is sprayed onto the tunnel construction surface at high speed through the spray gun 503. At the same time, the concrete dropped during the spraying process falls into the recovery tank 504 on the recovery frame 2, and is transported to the feeding pipe 501 through the recovery pipe 505 under the action of the booster pump 502, so as to facilitate the recycling and reuse of the concrete.

[0060] In order to drive the spray gun 503 to move left and right and deflect up and down, thereby improving the efficiency of concrete construction, a mounting groove 506 is opened on the surface of the recovery frame 2, and a screw 507 is installed on the inner wall of the mounting groove 506 through a bearing. A servo motor 508 is fixedly installed on the surface of the recovery frame 2, and one end of the output shaft of the servo motor 508 is fixedly sleeved with one end of the screw 507. A slider 509 is threadedly sleeved on the surface of the screw 507. The surface of the slider 509 is slidably connected to the inner wall of the mounting groove 506. A concave seat 510 is provided on one side surface of the slider 509, and the inner surface of the concave seat 510 is pinned. The shaft is hinged to the surface of the spray gun 503, and a rotating motor 511 is fixedly installed on the outer surface of the concave seat 510. One end of the output shaft of the rotating motor 511 is fixedly sleeved with one end of the pin shaft. The forward and reverse rotation of the output shaft of the servo motor 508 drives the screw 507 connected to it to rotate, and the rotation of the screw 507 drives the slider 509 to move along the inner wall of the mounting groove 506. The movement of the slider 509 drives the spray gun 503 to move left and right through the concave seat 510. The forward and reverse rotation of the output shaft of the rotating motor 511 drives the pin shaft connected to it to rotate, and the rotation of the pin shaft drives the spray gun 503 to deflect up and down.

[0061] In order to facilitate the disassembly and assembly of the concave seat 510 and the slider 509, thereby facilitating the maintenance of the spray gun 503, a pushing cylinder 512 is fixedly installed on the lower surface of the slider 509, and one end of the piston rod of the pushing cylinder 512 extends to the inner wall of the slider 509 and is fixedly connected to the second rack 513. The surface of the concave seat 510 is provided with a clamping column 514 distributed in a rectangular array, and the surface of the slider 509 is provided with a clamping groove 515 distributed in a rectangular array. The surface of the clamping column 514 is slidably connected to the inner wall of the clamping groove 515, and the inner wall of the clamping groove 515 is provided with a rotating groove 516. The inner wall of the rotating groove 516 is fixedly installed with a limiting ring 517, and the surface of one side of the limiting ring 517 is rotatably connected to the second gear 518. Multiple second gears 518 are meshed with the second rack 513, and the surface of the second gear 518 is distributed in a ring array. A bevel groove 519 is provided, and a connecting rod 520 is slidably connected to the inner wall of the bevel groove 519. Guide grooves 521 are provided in an annular array on the inner surface of the limiting ring 517 and the second gear 518. A guide block 522 is slidably engaged with the inner wall of the guide groove 521. One end of the connecting rod 520 is fixedly connected to one side surface of the guide block 522. The second rack 513 connected thereto is driven to move by pushing the extension and contraction of the piston rod of the cylinder 512. The movement of the second rack 513 drives the second gear 518 to rotate through engagement with the second gear 518. The rotation of the second gear 518 drives the bevel groove 519 to rotate. The rotation of the bevel groove 519 drives the connecting rod 520 to move. The movement of the connecting rod 520 drives the guide block 522 to move along the inner wall of the guide groove 521, thereby clamping the clamping column 514 through the guide block 522.

[0062] By setting up a concrete spraying mechanism, it is not only convenient to replace the manual spraying method of the handheld spray gun 503, but also convenient to collect the fallen concrete for reuse. At the same time, the concave seat 510 and the slider 509 can be quickly disassembled and assembled, thereby facilitating the maintenance of the spray gun 503. Under the action of the servo motor 508 and the rotating motor 511, the spray gun 503 can automatically move left and right and deflect up and down, thereby improving the efficiency of concrete construction.

[0063] The present invention proposes a construction method for a concrete spraying device based on waste soil recovery, and the construction method is as follows:

[0064] S1, when in use, separate construction sand, concrete, bricks and mud from waste soil, mix cement, sand and gravel according to the designed proportion and pour them into mixing tank 1 through the feed port of mixing tank 1;

[0065] S2. Then start the suction pump 313, which pours the clean water in the water tank 312 into the arc-shaped diverter 304 through the water pipe 311 and then sprays it out through the nozzle 310. At the same time, start the drive motor 308. The rotation of the output shaft of the drive motor 308 drives the first gear 309 connected thereto to rotate. The rotation of the first gear 309 drives the first rack 306 engaged therewith to slide along the inner wall of the slide groove 305. The movement of the first rack 306 drives the sliding rod 303 connected thereto to move along the inner wall of the limiting groove 302 on the limiting plate 301. The movement of the sliding rod 303 drives the arc-shaped diverter 304 to move along the inner wall of the mixing tank 1, and drives the other sliding rod 303 to move along the inner wall of the limiting groove 302 of the limiting plate 301, thereby driving the arc-shaped diverter 304 to move along the inner wall of the mixing tank 1;

[0066] S3, the rotating motor 45 is started again. The rotation of the output shaft of the rotating motor 45 drives the stirring shaft 43 connected thereto to rotate. The rotation of the stirring shaft 43 drives the spiral blade 44 to rotate. At the same time, the stepping motor 42 is started. The rotation of the output shaft of the stepping motor 42 drives the rotating shaft 41 connected thereto to rotate. The rotation of the rotating shaft 41 drives the support plate 4 to rotate. The rotation of the support plate 4 drives the spiral blade 44 to deflect left and right through the stirring shaft 43, thereby facilitating mixing of the raw materials in the mixing tank 1 into concrete.

[0067] S4. Then, the concave seat 510 is installed on the slider 509, and the clamping column 514 is clamped with the clamping groove 515. The piston rod of the cylinder 512 is pushed out, which drives the second rack 513 connected thereto to move upward. The upward movement of the second rack 513 drives the second gear 518 to rotate through engagement with the second gear 518. The rotation of the second gear 518 drives the inclined groove 519 to rotate. The rotation of the inclined groove 519 drives the connecting rod 520 to move. The movement of the connecting rod 520 drives the guide block 522 to move out along the inner wall of the guide groove 521, so that the guide block 522 can clamp the clamping column 514.

[0068] S5. The mixed concrete falls onto the vibrating screen 5 through the discharge port. The booster pump 502 is started. The concrete screened by the vibrating screen 5 is transported to the spray gun 503 through the feed pipe 501 under the action of the booster pump 502. The concrete is sprayed onto the tunnel construction surface at high speed through the spray gun 503. Concrete dropped during the spraying process falls into the recovery tank 504 on the recovery frame 2. The collected concrete is returned to the feed pipe 501 through the recovery pipe 505 under the action of the booster pump 502 for reuse.

[0069] S6. During the spraying process, the servo motor 508 and the rotary motor 511 are started respectively as needed. The forward and reverse rotation of the output shaft of the servo motor 508 drives the screw 507 connected thereto to rotate. The rotation of the screw 507 drives the slider 509 to move along the inner wall of the mounting groove 506. The movement of the slider 509 drives the spray gun 503 to move left and right through the concave seat 510. The forward and reverse rotation of the output shaft of the rotary motor 511 drives the pin shaft connected thereto to rotate. The rotation of the pin shaft drives the spray gun 503 to deflect up and down.

[0070] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A concrete spraying device based on waste soil recovery, comprising a mixing tank (1) and a recovery frame (2) located on one side of the mixing tank (1), characterized in that: The interior of the mixing tank (1) is provided with a clean water spraying mechanism, and the interior of the mixing tank (1) is provided with a spiral stirring mechanism, and the surface of the recovery frame (2) is provided with a concrete spraying mechanism; The clean water injection mechanism is used to add clean water into the mixing tank (1) and facilitates the cleaning of the spiral stirring mechanism; The spiral stirring mechanism is used to mix and stir the sand, cement, gravel and water separated from the waste soil which enter the mixing tank (1) through the conical feed port of the mixing tank (1); The concrete spraying mechanism is used to spray the mixed concrete onto the tunnel construction surface at high speed.

2. A concrete spraying device based on waste soil recovery according to claim 1, characterized in that: The clean water injection mechanism comprises grooves (3) which are symmetrically distributed on the inner wall of the mixing tank (1), a limiting plate (301) is fixedly installed on the inner wall of the groove (3), a limiting groove (302) is provided on the surface of the limiting plate (301), a sliding rod (303) is slidably connected to the inner wall of the limiting groove (302), an arc-shaped diverter (304) is fixedly connected between the two sliding rods (303), and the surface of the arc-shaped diverter (304) is slidably connected to the inner wall of the mixing tank (1).

3. A concrete spraying device based on waste soil recovery according to claim 2, characterized in that: A slide groove (305) is provided on the surface of the mixing tank (1), and the slide groove (305) is communicated with the inner wall of one of the grooves (3). The inner wall of the slide groove (305) is slidably engaged with a first rack (306), one end of one of the slide rods (303) is fixedly connected to the surface of the first rack (306), a support block (307) is fixedly connected to the surface of the bracket of the mixing tank (1), a driving motor (308) is fixedly installed on the upper surface of the support block (307), and one end of the output shaft of the driving motor (308) is fixedly sleeved with a first gear (309), and the first gear (309) is meshed with the first rack (306).

4. A concrete spraying device based on waste soil recovery according to claim 2, characterized in that: The diversion port of the arc-shaped diverter (304) is fixedly connected to a nozzle (310), the surface of the arc-shaped diverter (304) is fixedly connected to a water pipe (311), the outer surface of the mixing tank (1) is provided with a water tank (312), the upper surface of the water tank (312) is fixedly installed with a suction pump (313), and the suction pump (313) guides the water in the water tank (312) into the arc-shaped diverter (304) through the water pipe (311).

5. The concrete spraying device based on waste soil recovery according to claim 1 is characterized in that: The spiral stirring mechanism comprises support plates (4) symmetrically arranged on the inner wall of the mixing tank (1), a rotating shaft (41) passing through the surfaces of the two support plates (4), both ends of the rotating shaft (41) being mounted on the inner wall of the mixing tank (1) via bearings, a stepping motor (42) being fixedly mounted on the outer surface of the mixing tank (1), and one end of the output shaft of the stepping motor (42) being fixedly sleeved with one end of the rotating shaft (41).

6. A concrete spraying device based on waste soil recovery according to claim 5, characterized in that: A stirring shaft (43) is mounted on the surface of one side of the two support plates (4) via a bearing, and a spiral blade (44) is arranged on the surface of the stirring shaft (43). A rotating motor (45) is fixedly mounted on the inner wall of one of the support plates (4), and one end of the output shaft of the rotating motor (45) is fixedly sleeved with one end of the stirring shaft (43).

7. The concrete spraying device based on waste soil recovery according to claim 1 is characterized in that: The concrete spraying mechanism comprises a vibrating screen (5) arranged at the bottom of the mixing tank (1); the bottom of the vibrating screen (5) is fixedly connected to a material delivery pipeline (501); a booster pump (502) is arranged at the middle end of the material delivery pipeline (501); one end of the material delivery pipeline (501) is fixedly connected to a spray gun (503); a recovery groove (504) is provided on the surface of the recovery frame (2); a recovery pipeline (505) is fixedly connected to the lower surface of the recovery groove (504); and the free end of the recovery pipeline (505) is fixedly connected to the surface of the material delivery pipeline (501).

8. The concrete spraying device based on waste soil recovery according to claim 7 is characterized in that: The surface of the recovery frame (2) is provided with a mounting groove (506), the inner wall of the mounting groove (506) is provided with a screw (507) via a bearing, a servo motor (508) is fixedly mounted on the surface of the recovery frame (2), one end of the output shaft of the servo motor (508) is fixedly sleeved with one end of the screw (507), a slider (509) is threadedly sleeved on the surface of the screw (507), the surface of the slider (509) is slidably connected with the inner wall of the mounting groove (506), a concave seat (510) is provided on one side surface of the slider (509), the inner surface of the concave seat (510) is hinged with the surface of the spray gun (503) via a pin shaft, a rotating motor (511) is fixedly mounted on the outer surface of the concave seat (510), and one end of the output shaft of the rotating motor (511) is fixedly sleeved with one end of the pin shaft.

9. A concrete spraying device based on waste soil recovery according to claim 8, characterized in that: A pushing cylinder (512) is fixedly installed on the lower surface of the slider (509), one end of the piston rod of the pushing cylinder (512) extends to the inner wall of the slider (509) and is fixedly connected to the second rack (513), the surface of the concave seat (510) is provided with clamping columns (514) distributed in a rectangular array, the surface of the slider (509) is provided with clamping grooves (515) distributed in a rectangular array, the surface of the clamping column (514) is slidably connected to the inner wall of the clamping groove (515), the inner wall of the clamping groove (515) is provided with a rotating groove (516), the inner wall of the rotating groove (516) is fixedly installed with a limiting ring (517), the A second gear (518) is rotatably connected to a side surface of the limiting ring (517), and a plurality of the second gears (518) are meshed with the second rack (513). The surface of the second gear (518) is provided with inclined grooves (519) in a circular array, and the inner wall of the inclined groove (519) is slidably connected to a connecting rod (520). The inner surfaces of the limiting ring (517) and the second gear (518) are provided with guide grooves (521) in a circular array, and the inner wall of the guide groove (521) is slidably engaged with a guide block (522), and one end of the connecting rod (520) is fixedly connected to a side surface of the guide block (522).

10. A construction method of a concrete spraying device based on waste soil recycling, used to implement a concrete spraying device based on waste soil recycling as claimed in any one of claims 1 to 9, characterized in that: S1. When in use, construction sand, concrete, bricks and mud are separated from waste soil, cement, sand and gravel are mixed according to the designed proportion and poured into the mixing tank (1) through the feed port of the mixing tank (1); S2, then start the suction pump (313), the suction pump (313) pours the clean water in the water tank (312) into the arc-shaped diverter (304) through the water pipe (311), and then sprays it out through the nozzle (310), and at the same time start the drive motor (308), the rotation of the output shaft of the drive motor (308) drives the first gear (309) connected to it to rotate, and the rotation of the first gear (309) drives the first rack (306) meshing with it to move along the slide groove (305) ) slides along the inner wall of the first rack (306), the movement of the first rack (306) drives the sliding rod (303) connected thereto to move along the inner wall of the limiting groove (302) on the limiting plate (301), the movement of the sliding rod (303) drives the arc-shaped flow divider (304) to move along the inner wall of the mixing tank (1), and drives another sliding rod (303) to move along the inner wall of the limiting groove (302) of the limiting plate (301), thereby driving the arc-shaped flow divider (304) to move along the inner wall of the mixing tank (1); S3, restarting the rotating motor (45), the rotation of the output shaft of the rotating motor (45) drives the stirring shaft (43) connected thereto to rotate, the rotation of the stirring shaft (43) drives the spiral blade (44) to rotate, and at the same time starting the stepping motor (42), the rotation of the output shaft of the stepping motor (42) drives the rotating shaft (41) connected thereto to rotate, the rotation of the rotating shaft (41) drives the support plate (4) to rotate, the rotation of the support plate (4) drives the spiral blade (44) to deflect left and right through the stirring shaft (43), thereby facilitating mixing the raw materials in the mixing tank (1) into concrete; S4, then install the concave seat (510) on the slider (509), clamp the clamping column (514) with the clamping groove (515), push the piston rod of the cylinder (512) to extend, and drive the second rack (513) connected thereto to move upward. The upward movement of the second rack (513) drives the second gear (518) to rotate through the engagement with the second gear (518). The rotation of the second gear (518) drives the inclined groove (519) to rotate. The rotation of the inclined groove (519) drives the connecting rod (520) to move. The movement of the connecting rod (520) drives the guide block (522) to move out along the inner wall of the guide groove (521), so that the guide block (522) can clamp the clamping column (514). S5, the mixed concrete falls onto the vibrating screen (5) through the discharge port, the booster pump (502) is started, and the concrete screened by the vibrating screen (5) is transported to the spray gun (503) through the material delivery pipe (501) under the action of the booster pump (502), so that the concrete can be sprayed onto the tunnel construction surface at high speed through the spray gun (503), and the concrete dropped during the spraying process falls into the recovery tank (504) on the recovery frame (2), and the collected concrete is returned to the material delivery pipe (501) through the recovery pipe (505) under the action of the booster pump (502) for reuse; S6. During the spraying process, the servo motor (508) and the rotary motor (511) are started respectively as needed. The output shaft of the servo motor (508) rotates to drive the screw (507) connected thereto to rotate. The rotation of the screw (507) drives the slider (509) to move along the inner wall of the mounting groove (506). The movement of the slider (509) drives the spray gun (503) to move left and right through the concave seat (510). The output shaft of the rotary motor (511) rotates to drive the pin connected thereto to rotate. The rotation of the pin drives the spray gun (503) to deflect up and down.

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