A construction waste roadbed filler solidity test device

Abstract

The invention discloses a construction waste roadbed filler firmness test device, which belongs to the technical field of roadbed filler firmness test, and comprises an outer storage tube and an inner tube, wherein a hydrocyclone motor is arranged at the bottom of the outer storage tube, and a hydrocyclone assembly for stirring sodium sulfate solution is connected to the output end of the hydrocyclone motor through a driving shaft; a liquid discharge plate is arranged below the hydrocyclone assembly. The invention can quickly realize the repeated immersion of roadbed filler fragments in sodium sulfate solution through the arrangement of a liquid discharge hopper and a convex plunger, and allow the separation and mixing of the solution to be carried out autonomously, thereby reducing the complicated operation of artificially replacing equipment, and at the same time, the arrangement of an impact impeller and a spherical nozzle can press the sodium sulfate solution into and penetrate into the internal space of the accumulated roadbed fragments, so that the internal surface of the construction waste fragments with larger particle sizes can be more quickly in full contact with the sodium sulfate solution, which is convenient for the sodium sulfate to crystallize and expand faster on all surfaces of the roadbed fragments.

Description

Technical Field

[0001] The invention relates to the technical field of roadbed filler firmness testing, in particular to a construction waste roadbed filler firmness testing device. Background Art

[0002] The roadbed filler strength test is to take samples of the roadbed filler and infiltrate the sampled filler material with a saturated solution of sodium sulfate, and indirectly judge its strength by the degree of damage to the roadbed filler caused by the expansion force when crystallization is formed.

[0003] At present, when conducting a roadbed filler solidity test, it is generally necessary to first screen sand and gravel materials within the same specification and particle size, soak them in a saturated sodium sulfate solution, and then take them out and dry them, and repeat the cycle five times. However, these operations mostly require manual operation by test personnel, and different equipment must be switched multiple times. A certain time interval is also required between different steps, which makes the operation of the roadbed filler solidity test complicated and inefficient, and takes up more time and energy of technicians. In addition, the construction waste used for roadbed fillers is generally a mixed fragment composed of bricks and concrete blocks, and the particle size of the roadbed filler fragments of this construction waste is larger than that of ordinary sand and gravel roadbed fillers. The larger particle size will have a larger surface area, and the contact surface between the fragments will be larger. Then the sodium sulfate solution will take longer to crystallize, and the larger contact surface will make it more difficult for the fragment surface to crystallize evenly, affecting the accuracy of the test results. Therefore, a construction waste roadbed filler solidity test device is proposed. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that in the prior art, sand and gravel materials with the same specification and particle size are first screened, immersed in a saturated sodium sulfate solution, and then taken out and dried, and the cycle is repeated five times. However, these operations mostly require manual operation by test personnel, and different equipment is used for multiple conversions. A certain time interval is also required between different steps, which makes the operation of the roadbed filler firmness test complicated and inefficient, and occupies more time and energy of technical personnel. In addition, the construction waste used for roadbed filler is generally a mixed fragment composed of bricks and concrete blocks, and the particle size of the roadbed filler fragments of this construction waste is larger than that of general sand and gravel roadbed filler. The larger particle size will have a larger surface area, and the contact surface between the fragments will be larger, so the sodium sulfate solution will take longer to crystallize, and the larger contact surface will make it more difficult for the fragment surface to crystallize uniformly, affecting the accuracy of the test results. A construction waste roadbed filler firmness test device is proposed.

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

[0006] A construction waste roadbed filler firmness test device comprises an outer storage cylinder and an inner cylinder, a hydrostatic motor is arranged at the bottom end of the outer storage cylinder, and a hydrostatic assembly for stirring sodium sulfate solution is connected to the output end of the hydrostatic motor through a driving shaft; a liquid discharge plate is arranged below the hydrostatic assembly, and a convex plunger is connected to the bottom end of the liquid discharge plate through a reset spring, a buffer cylinder is arranged at the outside of the inner cylinder, a planetary assembly is arranged at the top of the buffer cylinder, a plurality of booster wheels are connected to the planetary assembly, and a booster ring is arranged inside the plurality of booster wheels, an electric push rod is arranged above the inner cylinder, the output end of the electric push rod is connected to an immersion cylinder through a U-shaped rod, the bottom end of the immersion cylinder is connected to a hollow frame through a conveying pipe, an impact impeller is connected to the inner end surface of the hollow frame, a liquid pressure assembly for penetrating the inner surface of the fragments is arranged above the impact impeller, and two mutually symmetrical drying air pumps are fixedly connected to the outer side wall at the top end of the outer storage cylinder.

[0007] Preferably, the bottom end of the outer storage tube is fixedly connected to a base, the bottom end of the outer storage tube is fixedly connected to the end of the liquid spinning motor, and the top end of the base is fixedly connected to the bottom end of the inner tube.

[0008] Preferably, the hydrostatic assembly consists of a base plate and a hydrostatic wheel, the output end of the hydrostatic motor is fixedly connected to the bottom end of the base plate through a driving shaft, the top end of the base plate is fixedly connected to the bottom end of the hydrostatic wheel, the top end of the base plate is fixedly connected to the bottom end of the inner cylinder, and the bottom end of the base plate is fixedly connected with a cache cover.

[0009] Preferably, a pressure relief hole is provided at the bottom end of the buffer cover, the inner wall of the pressure relief hole is fixedly connected to the outer wall of the liquid discharge plate, the bottom end of the liquid discharge plate is fixedly connected to the liquid discharge hopper, the bottom end of the liquid discharge plate is fixedly connected to the top end of the convex plunger through a return spring, the outer wall diameter of the convex plunger is larger than the inner diameter of the bottom end of the liquid discharge hopper, and the top end of the base is fixedly connected to the bottom end of the convex plunger through a hydraulic rod.

[0010] Preferably, the left and right inner walls of the outer storage tube are fixedly connected with electric control slide rails, the outer wall of the electric control slide rails is slidably connected with a pressure seat, the inner wall of the pressure seat is slidably connected to the outer wall of the buffer tube, and the outer wall of the bottom end of the buffer tube is fixedly connected to the inner wall of the outer storage tube through a fixed plate.

[0011] Preferably, the planetary assembly consists of a revolving gear ring and a plurality of self-rotating gears, the plurality of self-rotating gears are arranged on the outer side of the revolving gear ring and mesh with each other, the bottom end of the revolving gear ring is fixedly connected to the top end of the inner cylinder, the bottom end of the self-rotating gear is fixedly connected to the top end of the booster wheel through a pin shaft, the self-rotating gear is rotatably connected to the buffer cylinder through a pin shaft, the booster wheel is adapted to the booster ring, the booster ring and the inner cylinder are connected to each other, and a plurality of spray holes are opened on the inner side wall of the booster ring.

[0012] Preferably, a hanging plate is fixedly connected to the top of the external storage tube, a lower end surface of the hanging plate is fixedly connected to the top of the electric push rod, and a weighing sensor is fixedly connected to the upper end surface of the hanging plate.

[0013] Preferably, the output end of the electric push rod is fixedly connected to the outer wall of the immersion cylinder through a U-shaped rod, the bottom end of the immersion cylinder is fixedly connected to the top of the hollow frame through a conveying pipe, and the inner end surface of the hollow frame is rotatably connected to the impact impeller through a rotating shaft.

[0014] Preferably, the liquid pressure component consists of a spiral conveying blade and a plurality of spherical nozzles, the inner wall of the spiral conveying blade is fixedly connected to the outer wall of the rotating shaft, the inner wall of the top end of the conveying pipe is fixedly connected with a conduit, and the conduit is interconnected with the plurality of spherical nozzles.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This scheme can quickly realize the repeated immersion of roadbed filler fragments in sodium sulfate solution through the setting of the liquid discharge hopper and the convex plunger, and allow the separation and mixing of the solution to be carried out autonomously, reducing the complicated operation of manually replacing equipment and making the firmness test of roadbed fragments faster.

[0017] 2. This scheme allows the dynamic sodium sulfate solution to continuously enter the upper liquid surface of the immersion cylinder through the setting of the self-rotating gear and the booster ring, so that the roadbed fragments immersed in the cylinder are mixed and crystallized by the dynamic sodium sulfate solution at multiple angles, which is convenient for accelerating the immersion mixing speed of the test.

[0018] 3. This solution can press the sodium sulfate solution into the internal space of the accumulated roadbed fragments through the setting of the impact impeller and the spherical nozzle, so that the internal surface of the larger particle size construction waste fragments can be fully contacted with the sodium sulfate solution more quickly, which is convenient for the sodium sulfate to crystallize and expand faster on all surfaces of the roadbed fragments, making the test process faster and the test results more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the three-dimensional structure of a construction waste roadbed filler solidity test device proposed by the present invention Figure 1 ;

[0020] Figure 2 A schematic diagram of the three-dimensional structure of a construction waste roadbed filler solidity test device proposed by the present invention Figure 2 ;

[0021] Figure 3 This is a structural schematic diagram of the position of the planetary components in a construction waste roadbed filler solidity test device proposed by the present invention;

[0022] Figure 4This is a schematic structural diagram of a hydrocyclone assembly in a construction waste roadbed filler solidity test device proposed by the present invention;

[0023] Figure 5 This is a schematic diagram of the structure inside the liquid discharge hopper in a construction waste roadbed filler solidity test device proposed by the present invention;

[0024] Figure 6 This is a structural schematic diagram of the position of the booster wheel in a construction waste roadbed filler solidity test device proposed by the present invention;

[0025] Figure 7 This is a structural schematic diagram of the position of the hollow frame in a construction waste roadbed filler solidity test device proposed by the present invention;

[0026] Figure 8 The present invention provides a schematic structural diagram of a hydraulic pressure component in a construction waste roadbed filler solidity testing device.

[0027] In the figure: 1. outer storage cylinder; 2. inner cylinder; 3. base; 4. hydrostatic motor; 5. buffer cover; 6. bottom plate; 7. hydrostatic wheel; 8. liquid discharge plate; 9. liquid discharge bucket; 10. reset spring; 11. convex plunger; 12. hydraulic rod; 13. buffer cylinder; 14. electric control slide rail; 15. pressure seat; 16. orbital gear ring; 17. self-rotating gear; 18. booster wheel; 19. booster ring; 20. hanging plate; 21. weighing sensor; 22. electric push rod; 23. U-shaped rod; 24. immersion cylinder; 25. conveying pipe; 26. hollow frame; 27. impact impeller; 28. rotating shaft; 29. ​​spiral conveying blade; 30. conduit; 31. spherical nozzle; 32. drying air pump. DETAILED DESCRIPTION

[0028] 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. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0029] Embodiment 1, refer to Figure 1-Figure 8 A construction waste roadbed filler firmness test device comprises an outer storage tube 1 and an inner tube 2. A hydrocyclone motor 4 is arranged at the bottom of the outer storage tube 1. A hydrocyclone assembly for stirring a sodium sulfate solution is connected to the output end of the hydrocyclone motor 4 through a driving shaft. A liquid discharge plate 8 is arranged below the hydrocyclone assembly. A convex plunger 11 is connected to the bottom end of the liquid discharge plate 8 through a return spring 10.

[0030] Furthermore, the bottom end of the outer storage tube 1 is fixedly connected to a base 3, the bottom end of the outer storage tube 1 is fixedly connected to the end of the liquid spinning motor 4, the top of the base 3 is fixedly connected to the bottom end of the inner tube 2, the liquid spinning assembly is composed of a bottom plate 6 and a liquid spinning wheel 7, the output end of the liquid spinning motor 4 is fixedly connected to the bottom end of the bottom plate 6 through a driving shaft, the top end of the bottom plate 6 is fixedly connected to the bottom end of the liquid spinning wheel 7, the top end of the bottom plate 6 is fixedly connected to the bottom end of the inner tube 2, the bottom end of the bottom plate 6 is fixedly connected to a buffer cover 5, a pressure relief hole is provided at the bottom end of the buffer cover 5, the inner side wall of the pressure relief hole is fixedly connected to the outer side wall of the liquid discharge plate 8, the bottom end of the liquid discharge plate 8 is fixedly connected to a liquid discharge bucket 9, the bottom end of the liquid discharge plate 8 is fixedly connected to the top end of a convex plunger 11 through a reset spring 10, the outer side wall diameter of the convex plunger 11 is larger than the inner diameter of the bottom end of the liquid discharge bucket 9, the top end of the base 3 is fixedly connected to the bottom end of the convex plunger 11 through a hydraulic rod 12;

[0031] It should be noted that: a saturated sodium sulfate solution is placed in the inner cylinder 2, and then the roadbed filler fragments of the same particle size after screening are placed in the immersion cylinder 24, and the immersion cylinder 24 is moved down to the sodium sulfate solution in the inner cylinder 2 by the electric push rod 22. After the immersion time is completed, the hydraulic rod 12 on the top of the base 3 is started, and the hydraulic rod 12 will push the convex plunger 11 to move in the liquid discharge hopper 9, so that a gap is generated between the convex plunger 11 and the bottom end of the liquid discharge hopper 9, and the sodium sulfate solution in the inner cylinder 2 will flow into the buffer cover 5 below through the multiple holes on the bottom plate 6 at the bottom, and enter the liquid discharge hopper 9 through the liquid discharge plate 8. When the sodium sulfate solution in the inner tube 2 flows down, the sodium sulfate solution in the inner tube 2 flows into the cavity between the inner tube 2 and the outer storage tube 1 at the bottom through the liquid discharge hopper 9. When the channel of the liquid discharge hopper 9 is closed, the thrust of the hydraulic rod 12 is cancelled, and the convex plunger 11 is re-pressed on the bottom port of the liquid discharge hopper 9 under the action of the return spring 10. When the roadbed fragments need to be soaked in the sodium sulfate solution in the subsequent process, the pressure seat 15 is moved up and down on the electric control slide rail 14 to press the sodium sulfate solution in the cavity between the inner tube 2 and the outer storage tube 1. At the same time, the convex plunger 11 is pushed open by the hydraulic rod 12 to allow the sodium sulfate solution to re-enter the inner tube 2 to soak the roadbed fragments.

[0032] A further advantage of adopting the above method is that it can quickly realize repeated immersion of the roadbed filler fragments in the sodium sulfate solution, and allow the separation and mixing of the solution to be carried out autonomously, reducing the complicated operation of manually replacing equipment, making the firmness test of the roadbed fragments faster.

[0033] Example 2, reference Figure 1-Figure 8 A buffer cylinder 13 is arranged outside the inner cylinder 2, a planetary assembly is arranged at the top of the buffer cylinder 13, a plurality of booster wheels 18 are connected to the planetary assembly, a booster ring 19 is arranged inside the plurality of booster wheels 18, the booster ring 19 is connected to the inner cylinder 2, and a plurality of spray holes are opened on the inner wall of the booster ring 19;

[0034] Further, the left and right inner walls of the outer storage tube 1 are fixedly connected with electric control slide rails 14, and the outer wall of the electric control slide rail 14 is slidably connected with a pressure seat 15, and the inner wall of the pressure seat 15 is slidably connected with the outer wall of the buffer tube 13, and the outer wall of the bottom end of the buffer tube 13 is fixedly connected with the inner wall of the outer storage tube 1 through a fixed plate, and the planetary assembly is composed of a revolving gear ring 16 and a plurality of self-rotating gears 17, and the plurality of self-rotating gears 17 are arranged on the outer side of the revolving gear ring 16 and mesh with each other, and the bottom end of the revolving gear ring 16 is fixedly connected with the top end of the inner tube 2, and the bottom end of the self-rotating gear 17 is fixedly connected with the top end of the booster wheel 18 through a pin shaft, and the self-rotating gear 17 is rotatably connected with the buffer tube 13 through a pin shaft, and the booster wheel 18 is adapted to the booster ring 19;

[0035] It should be noted that: when the sodium sulfate solution is immersed, the liquid spinning motor 4 on the base 3 will be started, and the liquid spinning motor 4 drives the liquid spinning wheel 7 to rotate through the driving shaft, thereby stirring the sodium sulfate solution in the inner cylinder 2 to spin and generate vortexes, and the sodium sulfate solution is pressed upward along the inner wall of the inner cylinder 2 and pressed into the communicating booster ring 19, so that the sodium sulfate solution and the broken pieces in the immersion cylinder 24 are mixed and crystallized faster. After the liquid spinning motor 4 is started, it will synchronously drive the inner cylinder 2 to rotate, and the rotation of the inner cylinder 2 will drive the revolving gear ring 16 at its top to rotate together The rotation of the orbital gear ring 16 will drive the multiple meshing self-rotating gears 17 on the outside to rotate. The rotation of the self-rotating gear 17 drives the booster wheel 18 below to rotate through the pin shaft. The rotating booster wheel 18 will continuously squeeze the booster ring 19 on the inside at intervals. The booster ring 19 will be pressed to continuously spray out the sodium sulfate solution inside. After the soaking is completed, the electric push rod 22 is used to lift the broken pieces out and rinse them with clean water. After rinsing, the sewage is poured out and the drying air pumps 32 on both sides are used to dry the broken pieces.

[0036] A further advantage of adopting the above method is that the dynamic sodium sulfate solution can continuously enter the upper liquid surface of the immersion tube 24, so that the roadbed fragments in the immersion tube 24 are mixed and crystallized by the dynamic sodium sulfate solution at multiple angles, which is convenient for accelerating the immersion mixing speed of the test.

[0037] Example 3, reference Figure 1-Figure 8 An electric push rod 22 is arranged at the top of the inner cylinder 2, and the output end of the electric push rod 22 is connected to an immersion cylinder 24 through a U-shaped rod 23. The bottom end of the immersion cylinder 24 is connected to a hollow frame 26 through a conveying pipe 25. The inner end surface of the hollow frame 26 is connected to an impact impeller 27. A pressure liquid component for penetrating the inner surface of the fragments is arranged above the impact impeller 27. Two symmetrical drying air pumps 32 are fixedly connected to the outer side wall of the top end of the outer storage cylinder 1;

[0038] Further, a hanging plate 20 is fixedly connected to the top of the external storage tube 1, the lower end surface of the hanging plate 20 is fixedly connected to the top of the electric push rod 22, the upper end surface of the hanging plate 20 is fixedly connected to the weighing sensor 21, the output end of the electric push rod 22 is fixedly connected to the outer wall of the immersion tube 24 through the U-shaped rod 23, the bottom end of the immersion tube 24 is fixedly connected to the top of the hollow frame 26 through the delivery pipe 25, the inner end surface of the hollow frame 26 is rotatably connected to the impact impeller 27 through the rotating shaft 28, the liquid pressure component is composed of a spiral delivery blade 29 and a plurality of spherical nozzles 31, the inner side wall of the spiral delivery blade 29 is fixedly connected to the outer side wall of the rotating shaft 28, the inner side wall of the top of the delivery pipe 25 is fixedly connected to a conduit 30, and the conduit 30 and the plurality of spherical nozzles 31 are communicated with each other;

[0039] It should be noted that: when the fragments in the immersion cylinder 24 are immersed, the sodium sulfate solution in the inner cylinder 2 in the form of a self-spinning vortex flow will be pressed into the hollow frame 26 from the lateral direction, and the impact impeller 27 in the hollow frame 26 will rotate after being impacted by the sodium sulfate solution pressed in the lateral direction, and the impact impeller 27 will drive the spiral conveying blade 29 to rotate in the conveying pipe 25 through the rotating shaft 28. The rotation of the spiral conveying blade 29 will continuously stir the sodium sulfate solution in the hollow frame 26 and press it upward for transportation, and then these sodium sulfate solutions will be pressed into the conduit 30, and pressed out through a plurality of spherical nozzles 31 to penetrate into the internal space of the roadbed fragments accumulated in the immersion cylinder 24. After repeated immersion, the weight of the fragments in the immersion cylinder 24 before and after the test is measured by the weighing sensor 21 on the hanging plate 20, and then the mass loss percentage formula is used for calculation;

[0040] The further advantage of adopting the above method is that the sodium sulfate solution can be pressed into the internal space of the piled roadbed fragments, so that the internal surface of the larger particle size construction waste fragments can be fully contacted with the sodium sulfate solution more quickly, so that the sodium sulfate can crystallize and expand more quickly on all surfaces of the roadbed fragments, making the test process faster and the test results more accurate.

[0041] When the present invention is used, a saturated sodium sulfate solution is placed in the inner cylinder 2, and then the roadbed filler fragments with the same particle size after screening are placed in the immersion cylinder 24, and the immersion cylinder 24 is moved down to the sodium sulfate solution in the inner cylinder 2 by the electric push rod 22. After the immersion time is completed, the hydraulic rod 12 on the top of the base 3 is started, and the hydraulic rod 12 will push the convex plunger 11 to move in the liquid discharge hopper 9, so that a gap is generated between the convex plunger 11 and the bottom end of the liquid discharge hopper 9, and the sodium sulfate solution in the inner cylinder 2 will flow into the buffer cover 5 below through the multiple holes on the bottom plate 6 at the bottom, and enter the liquid discharge hopper 9 through the liquid discharge plate 8 and flow down, and the sodium sulfate solution in the inner cylinder 2 will flow into the cavity between the inner cylinder 2 at the bottom and the outer storage cylinder 1 through the liquid discharge hopper 9. When the passage of the liquid discharge hopper 9 is closed, the thrust of the hydraulic rod 12 is cancelled, and the convex plunger 11 is re-pressed on the bottom port of the liquid discharge hopper 9 under the action of the reset spring 10. When the roadbed fragments need to be immersed in the sodium sulfate solution in the subsequent process, the pressure seat 15 is moved up and down on the electric control slide rail 14 to press the sodium sulfate solution in the cavity between the inner tube 2 and the outer storage tube 1. At the same time, the convex plunger 11 is pushed open by the hydraulic rod 12 to allow the sodium sulfate solution to re-enter the inner tube 2 to immerse the roadbed fragments. In this way, the repeated immersion of the roadbed filler fragments in the sodium sulfate solution can be quickly realized, and the separation and mixing of the solutions can be carried out autonomously, which reduces the complicated operation of manually replacing the equipment and makes the firmness test of the roadbed fragments faster.

[0042] When the sodium sulfate solution is immersed, the liquid spinning motor 4 on the base 3 is started, and the liquid spinning motor 4 drives the liquid spinning wheel 7 to rotate through the driving shaft, thereby stirring the sodium sulfate solution in the inner cylinder 2 to spin and generate vortexes, and the sodium sulfate solution is pressed upward along the inner wall of the inner cylinder 2 and pressed into the communicating booster ring 19, so that the sodium sulfate solution and the broken pieces in the immersion cylinder 24 are mixed and crystallized faster. After the liquid spinning motor 4 is started, it will synchronously drive the inner cylinder 2 to rotate, and the rotation of the inner cylinder 2 will drive the revolving gear ring 16 at the top thereof to rotate together, and the rotation of the revolving gear ring 16 will drive the multiple meshing self-rotating gears 17 on the outside to rotate, and the rotation of the self-rotating gear 17 is driven by the pin shaft. When the boost wheel 18 below is driven to rotate, the rotating boost wheel 18 will continuously squeeze the boost ring 19 inside at intervals, and the boost ring 19 will be pressed to continuously spray out the sodium sulfate solution inside. After the immersion is completed, the electric push rod 22 is used to lift the fragments and rinse them with clean water. After rinsing, the sewage is poured out, and the fragments are dried by the drying air pumps 32 on both sides. In this way, the dynamic sodium sulfate solution can continuously enter the upper liquid surface of the immersion cylinder 24, so that the roadbed fragments in the immersion cylinder 24 are mixed and crystallized by the dynamic sodium sulfate solution at multiple angles, which is convenient for accelerating the immersion mixing speed of the test;

[0043] When the broken pieces in the immersion cylinder 24 are immersed, the sodium sulfate solution in the inner cylinder 2 in the form of a self-spinning vortex flow will be pressed into the hollow frame 26 from the side direction, and the impact impeller 27 in the hollow frame 26 will rotate after being impacted by the sodium sulfate solution pressed in the side direction, and the impact impeller 27 will drive the spiral conveying blade 29 to rotate in the conveying pipe 25 through the rotating shaft 28. The rotation of the spiral conveying blade 29 will continuously stir the sodium sulfate solution in the hollow frame 26 and press it upward for conveying, and the sodium sulfate solution will be pressed into the conduit 30 and squeezed out through a plurality of spherical nozzles 31. After repeated immersion, the weight of the fragments in the immersion cylinder 24 before and after the test is measured by the weighing sensor 21 on the hanging plate 20, and then the mass loss percentage formula is used for calculation. In this way, the sodium sulfate solution can be pressed into and penetrated into the internal space of the accumulated roadbed fragments, so that the internal surfaces of the larger particle size construction waste fragments can be more quickly in contact with the sodium sulfate solution, which is convenient for the sodium sulfate to crystallize and expand faster on all surfaces of the roadbed fragments, making the test process faster and the test results more accurate.

[0044] 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. A construction waste roadbed filler firmness test device, comprising an outer storage cylinder (1) and an inner cylinder (2), characterized in that: A liquid spinning motor (4) is disposed at the bottom end of the external storage cylinder (1), and an output end of the liquid spinning motor (4) is connected to a liquid spinning assembly for stirring the sodium sulfate solution via a driving shaft; a liquid discharge plate (8) is disposed below the liquid spinning assembly, and a convex plunger (11) is connected to the bottom end of the liquid discharge plate (8) via a return spring (10); A buffer cylinder (13) is arranged outside the inner cylinder (2), a planetary assembly is arranged at the top of the buffer cylinder (13), the planetary assembly is connected to a plurality of boost wheels (18), a boost ring (19) is arranged inside the plurality of boost wheels (18), an electric push rod (22) is arranged at the top of the inner cylinder (2), the output end of the electric push rod (22) is connected to an immersion cylinder (24) via a U-shaped rod (23), the bottom end of the immersion cylinder (24) is connected to a hollow frame (26) via a conveying pipe (25), the inner end surface of the hollow frame (26) is connected to an impact impeller (27), a liquid pressure assembly for penetrating the inner surface of the fragments is arranged above the impact impeller (27), and two mutually symmetrical drying air pumps (32) are fixedly connected to the outer wall at the top of the outer storage cylinder (1); The bottom end of the outer storage cylinder (1) is fixedly connected to a base (3); the liquid spinning assembly is composed of a bottom plate (6) and a liquid spinning wheel (7); the output end of the liquid spinning motor (4) is fixedly connected to the bottom end of the bottom plate (6) through a driving shaft; the top end of the bottom plate (6) is fixedly connected to the bottom end of the liquid spinning wheel (7); the top end of the bottom plate (6) is fixedly connected to the bottom end of the inner cylinder (2); the bottom end of the bottom plate (6) is fixedly connected to a buffer cover (5); a pressure relief hole is provided at the bottom end of the buffer cover (5); the inner side wall of the pressure relief hole is fixedly connected to the outer side wall of a liquid discharge plate (8); the bottom end of the liquid discharge plate (8) is fixedly connected to a liquid discharge hopper (9); the bottom end of the liquid discharge plate (8) is fixedly connected to the top end of a convex plunger (11) through a return spring (10); the outer side wall diameter of the convex plunger (11) is larger than the inner diameter of the bottom end of the liquid discharge hopper (9); the top end of the base (3) is fixedly connected to the bottom end of the convex plunger (11) through a hydraulic rod (12).

2. A construction waste roadbed filler firmness test device according to claim 1, characterized in that: The bottom end of the outer storage cylinder (1) is fixedly connected to the end of the liquid spinning motor (4), and the top end of the base (3) is fixedly connected to the bottom end of the inner cylinder (2).

3. A construction waste roadbed filler firmness test device according to claim 1, characterized in that: The left and right inner walls of the outer storage tube (1) are fixedly connected to an electric control slide rail (14), the outer wall of the electric control slide rail (14) is slidably connected to a pressure seat (15), the inner wall of the pressure seat (15) is slidably connected to the outer wall of the buffer tube (13), and the outer wall of the bottom end of the buffer tube (13) is fixedly connected to the inner wall of the outer storage tube (1) via a fixing plate.

4. A construction waste roadbed filler firmness test device according to claim 1, characterized in that: The planetary assembly is composed of a revolving gear ring (16) and a plurality of self-rotating gears (17). The plurality of self-rotating gears (17) are arranged on the outer side of the revolving gear ring (16) and mesh with each other. The bottom end of the revolving gear ring (16) is fixedly connected to the top end of the inner cylinder (2). The bottom end of the self-rotating gear (17) is fixedly connected to the top end of the booster wheel (18) via a pin shaft. The self-rotating gear (17) is rotationally connected to the buffer cylinder (13) via a pin shaft. The booster wheel (18) is matched with the booster ring (19). The booster ring (19) and the inner cylinder (2) are connected with each other, and a plurality of spray holes are provided on the inner side wall of the booster ring (19).

5. The construction waste roadbed filler firmness test device according to claim 1, characterized in that: The top end of the external storage tube (1) is fixedly connected to a hanging plate (20), the lower end surface of the hanging plate (20) is fixedly connected to the top end of an electric push rod (22), and the upper end surface of the hanging plate (20) is fixedly connected to a weighing sensor (21).

6. A construction waste roadbed filler firmness test device according to claim 1, characterized in that: The output end of the electric push rod (22) is fixedly connected to the outer wall of the immersion cylinder (24) via a U-shaped rod (23); the bottom end of the immersion cylinder (24) is fixedly connected to the top end of the hollow frame (26) via a delivery pipe (25); and the inner end surface of the hollow frame (26) is rotationally connected to the impact impeller (27) via a rotating shaft (28).

7. A construction waste roadbed filler firmness test device according to claim 6, characterized in that: The liquid pressure assembly is composed of a spiral conveying blade (29) and a plurality of spherical nozzles (31); the inner side wall of the spiral conveying blade (29) is fixedly connected to the outer side wall of the rotating shaft (28); the inner side wall of the top end of the conveying pipe (25) is fixedly connected to a conduit (30); and the conduit (30) and the plurality of spherical nozzles (31) are in communication with each other.

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