Construction method for generating fine aggregate by demolishing wall

Abstract

The application relates to a construction method for generating fine aggregate by demolishing wall bodies, and relates to the field of building construction, which comprises the following steps: S1: demolishing the non-load-bearing wall bodies of a construction floor to obtain broken materials; S2: grinding the broken materials by using a crushing device to obtain fine aggregate; the crushing device is located on the construction floor; the crushing device comprises a crushing box; a plurality of levels of crushing assemblies are sequentially distributed along a third direction, the crushing assembly comprises two crushing rollers which are distributed side by side along a first direction, the crushing rollers are rotationally connected to the crushing box along the axes of the crushing rollers, and a crushing gap is left between the two adjacent crushing rollers; the crushing gaps of the plurality of levels are gradually reduced from a feeding port to a discharging port; and the crushing device comprises a crushing driving assembly which drives the two adjacent crushing rollers in the same level of the crushing assembly to rotate in opposite directions. The application has the effects of reducing the workload of personnel and solving the problem of broken materials.

Description

Technical Field

[0001] This application relates to the field of building construction, and in particular to a construction method for removing walls to generate fine aggregate. Background Technology

[0002] In the construction industry, the progress of multi-story building construction often generates a large amount of construction waste, including demolished non-load-bearing walls. Improper handling of this construction waste not only wastes resources but also pollutes the environment. Therefore, how to efficiently and environmentally manage this construction waste has become an urgent problem to be solved in the current construction industry.

[0003] Currently, after demolishing non-load-bearing walls, trolleys and elevators are needed to transport the demolished rubble to the outside of the building for centralized processing. Because of the need to transport the demolished rubble to the outside of the building, the operation is too cumbersome and the workload is too large. Therefore, how to handle the demolished rubble is an urgent problem to be solved. Summary of the Invention

[0004] To reduce the workload of personnel and solve the problem of crushed materials, this application provides a construction method for generating fine aggregate by demolishing walls.

[0005] The construction method for generating fine aggregate by demolishing a wall provided in this application adopts the following technical solution:

[0006] A construction method for removing wall structures to generate fine aggregate includes the following steps:

[0007] S1: Demolish the non-load-bearing walls of the construction floor to obtain crushed material;

[0008] S2: The crushed material is ground using a crushing device to obtain fine aggregate; the crushing device is located on the construction floor.

[0009] The pulverizing equipment includes:

[0010] A crushing box with a crushing chamber, a feed inlet, and a discharge outlet;

[0011] A multi-stage crushing assembly is arranged sequentially along a third direction. In this third direction, multiple stages of the crushing assembly are located between the feed inlet and the discharge outlet. Each crushing assembly includes two crushing rollers arranged side-by-side along a first direction. These rollers are perpendicular to both the first and third directions and are rotatably connected to the crushing box around their own axes. A crushing gap is maintained between adjacent rollers. The crushing gaps between the multiple stages gradually decrease from the feed inlet to the discharge outlet.

[0012] A crushing drive assembly that drives two adjacent crushing rollers in the same level to rotate in opposite directions. From the feed inlet to the discharge outlet, the two adjacent crushing rollers in the same level crushing assembly rotate toward the side that is closer to each other.

[0013] By adopting the above technical solution, after the walls of the construction floor are demolished, the crushed material can be directly ground using crushing equipment. This equipment can crush the demolished walls, and the crushed fine aggregate can be used to make new mortar and other materials, achieving reuse. It eliminates the need to transport the crushed stone to the outside of the building, reducing the amount of manpower required and minimizing dust generation on the construction floor during transportation. During the crushing process, the crushed material is added to the crushing chamber through the feed inlet, and after being crushed by multiple crushing components, the fine aggregate is discharged from the outlet. Placing the crushing equipment on the construction floor allows for convenient crushing operations, enabling the disposal of demolished crushed material on the construction floor as much as possible.

[0014] Optionally, the crushing box has a feed sidewall with the feed inlet, and the feed sidewall is located parallel to a third direction;

[0015] The crushing equipment also includes a rotary drive assembly, which includes a support frame and a second motor. The crushing box is rotatably connected to the support frame and the crushing box is parallel to the first direction along the rotation axis of the support frame, so that the crushing box can be adjusted between the feeding posture and the discharging posture.

[0016] In the feeding posture, the feed inlet is located below the discharge outlet;

[0017] In the discharge position, the discharge port is located below the inlet;

[0018] The second motor is connected between the support frame and the crushing box to drive the crushing box to rotate along the support frame.

[0019] By adopting the above technical solution, when crushed material is put into the crushing box, the second motor drives the crushing box to rotate to the feeding posture. Therefore, compared with the discharge posture, which involves raising the crushed material before putting it into the crushing box, the height of the crushed material into the crushing box can be reduced. This reduces both the work done when raising the crushed material and the amount of dust generated during the process of raising the crushed stone. Since the feed inlet is located on the feed side wall of the crushing box, it is convenient for personnel to add the crushed stone into the crushing box from the side.

[0020] Optionally, the rotary drive assembly further includes a linear motor connected between the second motor and the support frame to drive the second motor to slide linearly along the support frame; the driving direction of the linear motor is parallel to a third direction.

[0021] By adopting the above technical solution, during operation, the linear motor drives the second motor and the crushing box to move vertically, which enables the crushing box to contact or separate from the ground; when the crushing box in the feeding posture is in contact with the ground, it is convenient for personnel to add crushed stone into the crushing box from a lower position; the linear motor drives the crushing box to move to a preset height after it is separated from the ground, which can provide space for the crushing box to rotate from the feeding posture to the discharging posture.

[0022] Optionally, it also includes a shovel assembly, the shovel assembly comprising:

[0023] A shovel plate is slidably connected to the feed inlet of the crushing box, the shovel plate being perpendicular to the first direction along the sliding direction of the crushing box, and the shovel plate being located at the end of the feed inlet away from the discharge outlet; and

[0024] The second drive cylinder is connected between the shovel plate and the crushing box to drive the shovel plate to slide along the crushing box.

[0025] By adopting the above technical solution, after the crushing box is adjusted to the feeding posture, the second drive cylinder pushes one end of the shovel plate through the feed inlet and out of the crushing box. Then, crushed material is put into the shovel plate. Finally, the second drive cylinder pulls the shovel plate back into the crushing chamber, and the feeding operation can be completed. By setting a shovel plate that can slide out of the crushing box at one end, it is convenient for personnel to feed material into the crushing box.

[0026] Optionally, the shovel end of the shovel plate is integrally fixedly connected to a shovel end plate having a flat bottom surface and an inclined shovel surface, and the shovel plate is located outside the crushing box;

[0027] The inclined shovel surface is inclined from the shovel end plate to the shovel plate in the direction from the feed inlet to the discharge outlet to form the inclined shovel surface; the flat bottom surface of the shovel plate is flush with the end wall of the crushing box away from the discharge outlet, and the thickness of the inclined shovel surface gradually decreases towards the side away from the shovel plate.

[0028] By adopting the above technical solution, since the flat bottom surface is flush with the end wall of the crushing box away from the discharge port, when the crushing box is in contact with the ground, the flat bottom surface is also in contact with the ground. During the process of the shovel plate sliding along the crushing box, the setting of the shovel end plate can facilitate the direct shoveling of crushed material onto the shovel plate.

[0029] Optionally, the shovel assembly further includes two dust baffles located on the side of the shovel plate near the discharge port; the dust baffles are hinged to the shovel plate and are parallel to the first direction along the rotation axis of the shovel plate, so that the dust baffles can be adjusted between a dust-blocking posture and an open posture;

[0030] In the dust-blocking posture, the two dust-blocking plates are in contact with each other on the side away from the shovel plate, so that the shovel plate and the two dust-blocking plates form a shovel area with openings at both ends. One end of the shovel area is connected to the outside of the crushing box, and the other end is connected to the crushing chamber.

[0031] In the open position, the two dust baffles on the side away from the shovel plate form a discharge gap for the crushed material to flow from the feed end to the discharge end of the crushing box.

[0032] By adopting the above technical solution, the two baffles that are in contact with each other at one end can reduce dust generation during material shoveling.

[0033] Optionally, the shovel assembly further includes a third motor connected between the shovel plate and the dust baffle plate to drive the dust baffle plate to rotate along the shovel plate.

[0034] By adopting the above technical solution, the dust baffle can be easily adjusted between the dust-blocking posture and the open posture by driving the dust baffle to rotate via a third motor.

[0035] Optionally, the shovel assembly further includes a main rotating shaft and an auxiliary sleeve; the axes of the main rotating shaft and the auxiliary sleeve coincide with the rotation axis of the dust baffle along the shovel plate;

[0036] The third motor is connected between the shovel plate and the main rotating shaft to drive the main rotating shaft to rotate along the shovel plate; the auxiliary sleeve is fixedly connected to the dust baffle plate;

[0037] The auxiliary sleeve is fitted onto the outer peripheral wall of the main rotating shaft and can rotate circumferentially along the main rotating shaft;

[0038] One of the outer peripheral wall of the main rotating shaft and the inner peripheral wall of the auxiliary sleeve is provided with a limiting block, and the other is provided with a limiting groove that accommodates the limiting block and allows the limiting block to rotate around the main rotating shaft by a preset angle.

[0039] By adopting the above technical solution, since the auxiliary sleeve can rotate at a certain angle along the main shaft, that is, the dust baffle can rotate at a certain angle along the main shaft, the dust baffle can be reduced from being jammed by the crushed stone as it moves along the main shaft.

[0040] Optionally, the shovel assembly further includes a reset torsion spring, one end of which is fixedly connected to the main rotating shaft and the other end of which is fixedly connected to the auxiliary sleeve. In a recoverable deformation state, the reset torsion spring has a force that drives the two dust baffles to rotate toward a side that is closer to each other.

[0041] By adopting the above technical solution, the dust baffle can be reset by the reset spring, which can reduce the gap between the two dust baffles.

[0042] Optionally, the dust baffle has multiple slots at the end away from the shovel plate. The multiple slots are spaced apart in a first direction. The portion of the dust baffle between two adjacent slots is a plug-in portion. The slots of the two dust baffles are staggered so that the plug-in portion on any dust baffle can be inserted into the slot on the other dust baffle as the dust baffle rotates.

[0043] By adopting the above technical solution, the combination of the plug and the groove can reduce the leakage of dust from the material shoveling area.

[0044] In summary, this application includes at least one of the following beneficial technical effects:

[0045] 1. While reducing the amount of manpower involved, it can process and dispose of the demolition debris as much as possible on the construction floors;

[0046] 2. By reducing the height at which the crushed material is fed into the crushing box, the work required to lift the crushed material can be reduced, as can the amount of dust generated during the process of lifting the crushed stone.

[0047] 3. By installing dust baffles, dust leakage can be further reduced, and dust suspended on the construction floor can be reduced. Attached Figure Description

[0048] Figure 1 This is a schematic diagram of the structure of the crushing box and the rotary drive assembly in the embodiments of this application;

[0049] Figure 2 This is a schematic diagram of the structure of the crushing component in an embodiment of this application;

[0050] Figure 3 This is a schematic diagram of the structure of the shovel plate and the shovel end plate in the embodiments of this application;

[0051] Figure 4 This is a cross-sectional view of the shovel plate and the shovel end plate in the embodiments of this application;

[0052] Figure 5 This is a schematic diagram of the dust baffle structure in an embodiment of this application;

[0053] Figure 6 yes Figure 5 Enlarged view of section A;

[0054] Figure 7 This is a schematic diagram of the structure in which the dust baffle plate has an embedded groove in an embodiment of this application;

[0055] Figure 8This is a schematic diagram of the structure of the dust baffle and auxiliary protection components in the embodiments of this application;

[0056] Figure 9 This is a schematic diagram of the structure of the crushing box with a flexible baffle installed in an embodiment of this application;

[0057] Figure 10 This is a schematic diagram of the structure of the flexible curtain in the embodiment of this application.

[0058] Explanation of reference numerals in the attached drawings: 1. Crushing box; 11. Crushing chamber; 12. Feed inlet; 13. Discharge outlet; 14. Feed side wall; 15. Flexible baffle; 151. Mounting strip; 152. Flexible strip; 2. Rotary drive assembly; 20. Traveling vehicle; 21. Support frame; 22. Linear motor; 221. Guide section; 222. Traveling section; 23. Second motor; 3. Crushing assembly; 31. Crushing roller; 32. Crushing gap; 33. Crushing drive assembly; 331. Servo motor; 4. Discharge sealing assembly; 41. Discharge sealing plate; 42. First motor; 5. Feeding... 51. Sealing assembly; 52. Feed sealing plate; 6. First drive cylinder; 6. Shoveling assembly; 61. Shoveling plate; 62. Second drive cylinder; 63. Shoveling end plate; 631. Flat bottom surface; 632. Sloping shovel surface; 7. Dust baffle; 71. Third motor; 72. Shoveling area; 73. Clearance groove; 74. Embedded groove; 741. Groove bottom wall; 742. Groove side wall; 75. Insertion part; 81. Main rotating shaft; 82. Auxiliary sleeve; 83. Limiting groove; 84. Limiting block; 85. Reset torsion spring; 9. Auxiliary protection assembly; 91. Sliding strip; 92. Reset spring; 93. Sliding plate. Detailed Implementation

[0059] The following is in conjunction with the appendix Figure 1-10 This application will be described in further detail. For ease of description, this application introduces directional terms such as first direction, second direction, and third direction to form a three-dimensional reference direction. The directional terms used, such as "first direction, second direction, and third direction", can be specifically referred to in the figure, where X represents the first direction X, Y represents the second direction Y, Z represents the third direction Z, and the first direction X, the second direction Y, and the third direction Z are perpendicular to each other.

[0060] This application discloses a construction method for generating fine aggregate by demolishing a wall. (Refer to...) Figure 1 The construction method for removing walls to generate fine aggregate includes the following steps:

[0061] S1: Demolish the non-load-bearing walls of the construction floor to obtain crushed material;

[0062] S2: The crushed material is ground using a crushing device to obtain fine aggregate; the crushing device is located on the construction floor.

[0063] The aforementioned fine aggregate can be mixed with water and gel materials to form mortar of the required strength for use in the construction of building floors.

[0064] Reference Figure 1 The crushing equipment includes a crushing box 1 having a crushing chamber 11, a feed inlet 12 and a discharge outlet 13, and a rotary drive assembly 2 for driving the crushing box 1 to rotate to change the height of the feed inlet 12 and the discharge outlet 13.

[0065] The feed inlet 12 and discharge outlet 13 of the crushing box 1 are distributed sequentially in a third direction. The third direction is perpendicular to the first direction. It should be understood that since the crushing box 1 can rotate around the first direction, the third direction does not refer to a specific vertical direction.

[0066] Reference Figure 1 and Figure 2 In order to perform crushing, multiple levels of crushing components 3 are provided in the crushing box 1. In the third direction, multiple crushing components 3 are located between the feed inlet 12 and the discharge outlet 13, so that the crushed material entering the feed inlet 12 is crushed by multiple levels of crushing components 3 and discharged from the discharge outlet 13.

[0067] The crushing assembly 3 includes two crushing rollers 31 spaced apart along a first direction. The axis of the crushing rollers 31 is perpendicular to both the first direction and a third direction. The two crushing rollers 31 in the crushing assembly 3 form a crushing gap 32 in the first direction. The crushing gap 32 of the multi-stage crushing assembly 3 gradually decreases from the feed inlet 12 to the discharge outlet 13. During the process of driving the two crushing rollers 31 of the same stage to rotate in a direction that moves closer to each other from the feed inlet 12 to the discharge outlet 13, the crushed material can be squeezed and crushed. In order to improve the crushing effect, protrusions can be fixedly connected to the outer peripheral wall of the crushing rollers 31 to improve the crushing rate. This disclosure does not make specific limitations here, as long as the crushing rollers 31 can crush the crushed material.

[0068] In order to drive the two crushing rollers 31 of the same level to rotate toward a side that is close to each other, some embodiments of this application also include a crushing drive assembly 33. The specific structure of the crushing drive assembly 33 is not specifically limited in this disclosure, but is based on the ability to drive the two crushing rollers 31 to rotate toward a side that is close to each other from the feed port 12 to the discharge port 13. For example, it can be configured as two servo motors 331, each servo motor 331 is configured to connect to a crushing roller 31 to drive the crushing roller 31 to rotate.

[0069] Reference Figure 1 and Figure 2In use, the material is put into the crushing chamber 11 through the feed inlet 12. The crushed material is crushed by the multi-stage crushing rollers 31 and then enters the discharge outlet 13. In order to facilitate the discharge of the crushed material from the discharge outlet 13, in some embodiments of this application, the discharge end of the crushing box 1 is narrowed. A discharge sealing assembly 4 is provided at the discharge outlet 13 of the crushing box 1. The discharge sealing assembly 4 includes a discharge sealing plate 41 and a first motor 42. The discharge sealing plate 41 is rotatably connected to the crushing box 1 and is perpendicular to the third direction along the rotation axis of the crushing box 1. The housing of the first motor 42 is fixedly connected to the crushing box 1, and the output shaft of the first motor 42 is fixedly connected to the discharge sealing plate 41. The first motor 42 drives the discharge sealing plate 41 to rotate so as to close or open the discharge outlet 13.

[0070] Reference Figure 1 and Figure 2 The crushing box 1 is also provided with a feed sealing assembly 5 for opening or closing the feed inlet 12. The feed sealing assembly 5 includes a feed sealing plate 51 slidably connected to the crushing box 1, and a first drive cylinder 52 for driving the feed sealing plate 51 to slide. Regarding the connection and configuration relationship between the first drive cylinder 52, the feed sealing plate 51 and the crushing box 1, this disclosure does not make specific limitations, as long as the first drive cylinder 52 can drive the feed sealing plate 51 to slide to open or close the feed inlet 12. For example, it can be configured such that the first drive cylinder 52 is a hydraulic cylinder, the cylinder body of the first drive cylinder 52 is fixedly connected to the crushing box 1, and the piston rod of the first drive cylinder 52 is fixedly connected to the feed sealing plate 51.

[0071] Reference Figure 1 In this disclosure, the crushing box 1 has a feed sidewall 14 with a feed inlet 12, and the feed sidewall 14 is arranged parallel to a third direction.

[0072] The rotary drive assembly 2 includes a traveling vehicle 20, a support frame 21 fixedly connected to the body of the traveling vehicle 20 and capable of moving with the traveling vehicle 20, a linear motor 22 having a guide portion 221 and a traveling portion 222 and the traveling portion 222 being fixed to the support frame 21, and a second motor 23 fixed to the guide portion 221 to move with the guide portion 221.

[0073] The direction of movement of the traveling part 222 along the guide part 221 is perpendicular to both the first direction and the second direction;

[0074] The second motor 23 is connected between the traveling part 222 and the crushing box 1 to drive the crushing box 1 to rotate along the traveling part 222. The rotation axis of the crushing box 1 along the traveling part 222 is parallel to the first direction. The connection relationship between the second motor 23, the guide part 221, and the crushing box 1 is not specifically limited in this application, but is based on the requirement that the second motor 23 can move synchronously with the traveling part 222 and drive the crushing box 1 to rotate. For example, the housing of the second motor 23 can be fixedly connected to the traveling part 222, and the output shaft of the second motor 23 can be fixedly connected to the crushing box 1. The crushing box 1 is rotated by the second motor 23 so that the crushing box 1 can be adjusted between the feeding posture and the discharging posture.

[0075] In the feeding posture, the feed inlet 12 is located below the discharge outlet 13;

[0076] In the discharge position, the discharge port 13 is located below the feed port 12.

[0077] Reference Figure 1 and Figure 2 During operation, the traveling vehicle 20 is first parked at the work position, and then the second motor 23 drives the crushing box 1 to rotate to the direction of the feed inlet 12 close to the ground. Then, the linear motor 22 moves the crushing box 1 downward to contact the ground, so that the crushed material can be fed into the feeding box from a lower height, avoiding dust generated during the process of raising the crushed material. The lower feeding height can be achieved without too much work. In order to further reduce dust and reduce work, in this disclosure, the feed inlet 12 extends to be flush with the end wall of the crushing box 1 away from the discharge outlet 13.

[0078] Reference Figure 3 and Figure 4 To facilitate the feeding of crushed material into the installation chamber via the feed inlet 12, some embodiments of this application further include a shovel assembly 6. The shovel assembly 6 includes a shovel plate 61 and a second drive cylinder 62. The shovel plate 61 is slidably connected to the crushing box 1 under the drive of the second drive cylinder 62. The shovel plate 61 is parallel to the first direction along the sliding direction of the crushing box 1. When shoveling is required, the second drive cylinder 62 pushes the shovel plate 61 forward, so that the shovel plate 61 passes through the feed inlet 12 from inside the crushing chamber 11 and slides out of the crushing box 1 to realize the shoveling operation. After the shoveling is completed, the second drive cylinder 62 pulls the shovel plate 61 back to its original position, so as to pull the shovel plate 61 from outside the crushing box 1 into the crushing chamber 11.

[0079] The cylinder body of the second drive cylinder 62 is fixedly connected to the outer wall of the crushing box 1. The piston rod of the second drive cylinder 62 passes through the box wall of the crushing box 1 and is fixedly connected to the shovel plate 61 so that the shovel plate 61 is driven by the second drive cylinder 62 to move along the crushing box 1. In this disclosure, the second drive cylinder 62 is preferably a three-stage hydraulic cylinder.

[0080] Reference Figure 3and Figure 4 To facilitate material shoveling, a shoveling end plate 63 with a flat bottom surface 631 and an inclined shoveling surface 632 is integrally fixedly connected to the shoveling end of the shoveling plate 61. The shoveling end plate 63 is located outside the feed inlet 12 of the crushing box 1. The flat bottom surface 631 of the shoveling end plate 63 is flush with the outer end wall of the crushing box 1 away from the discharge outlet 13, forming a stepped shape between the shoveling end plate 63 and the shoveling plate 61 to accommodate the end wall of the crushing box 1, so that the shoveling end plate 63 and the crushing box 1 can contact the ground at the same time. The thickness of the shoveling end plate 63 gradually decreases towards the side away from the shoveling plate 61 to form an inclined shoveling surface 632. The inclined shoveling surface 632 and the shoveling plate 61 are smoothly connected. The crushed material is shoveled onto the shoveling plate 61 via the inclined shoveling surface 632. After the shovel plate 61 is reset to the crushing chamber 11, the first drive cylinder 52 drives the feed sealing plate 51 to move to contact the inclined shovel surface 632. The end wall of the feed sealing plate 51 near the inclined shovel surface 632 is adapted to the inclined shovel surface 632 to prevent dust from flowing out of the crushing chamber 11.

[0081] Reference Figure 5 To reduce dust during the material shoveling process of the shoveling plate 61, in some embodiments of this application, the material shoveling assembly 6 further includes two dust baffles 7 each rotatably connected to the shoveling plate 61, and a third motor 71 for driving the dust baffles 7 to rotate along the shoveling plate 61 via a rotating shaft, the rotating shaft being arranged parallel to the first direction along the rotation axis of the shoveling plate 61; the dust baffles 7 are driven to rotate around the shoveling plate 61 by the third motor 71, so that the dust baffles 7 can be adjusted between a dust-blocking posture and an open posture;

[0082] In the dust-blocking posture, the two dust-blocking plates 7 are in contact with each other on the side away from the rotation axis of the dust-blocking plate 7, so that the shovel plate 61 and the two dust-blocking plates 7 surround and form a shovel area 72 with openings at both ends. One end of the shovel area 72 is connected to the outside of the crushing box 1, and the other end is connected to the crushing chamber 11.

[0083] Reference Figure 5 In the open position, the side of the two dust baffles 7 away from the rotation axis of the dust baffles 7 forms a discharge gap for the material to move from the feed end to the discharge end of the crushing box 1.

[0084] During material scraping, the third motor 71 drives the dust baffle 7 to rotate to the dust baffle position. After scraping, when the scraper plate 61 returns to the crushing chamber 11, the dust baffle 7 is also located inside the crushing chamber 11. Then, the feed inlet 12 is closed by the feed sealing plate 51, and the linear motor 22 drives the crushing box 1 to move upward until it is separated from the ground and moves to a preset height. Then, the second motor 23 drives the crushing box 1 to rotate from the feed position to the discharge position. Subsequently, the two dust baffles 7 are driven to separate, and the crushed material can be poured into the crushing component 3 for crushing. It should be understood that the size of the feed inlet 12 should meet the reciprocating movement of the scraper plate 61; the height between the end wall of the crushing box 1 away from the discharge port 13 and the first-stage crushing component 3 should also meet the movement space requirements of the dust baffle 7.

[0085] Reference Figure 5 Regarding the connection method between the third motor 71 and the dust baffle 7 and the shovel plate 61: the housing of the third motor 71 is fixedly connected to the shovel plate 61, and the output shaft of the third motor 71 is directly or indirectly connected to the shovel plate 61 to drive the dust baffle 7 to rotate along the shovel plate 61; when the dust baffle 7 is completely located in the crushing chamber 11, the third motor 71 is located at the end of the dust baffle 7 away from the feed inlet 12; in this disclosure, the end walls of the dust baffle 7 and the shovel plate 61 away from the feed inlet 12 can both contact the inner wall of the crushing box 1 away from the feed inlet 12. Therefore, in order to install the third motor 71, a clearance groove 73 for accommodating the third motor 71 is opened at the end of the shovel plate 61 away from the feed inlet 12 and the end of the dust baffle 7 away from the feed inlet 12.

[0086] Reference Figure 5 and Figure 6 In some embodiments of this application, the shovel assembly 6 further includes a main rotating shaft 81 and an auxiliary sleeve 82. The main rotating shaft 81 is coaxially fixedly connected to the output shaft of the third motor 71 so that the third motor 71 drives the main rotating shaft 81 to rotate along the shovel plate 61. The auxiliary sleeve 82 is fixedly connected to the dust baffle 7 and is coaxially sleeved on the main rotating shaft 81 and can rotate along the main rotating shaft 81.

[0087] A limiting groove 83 is provided on either the inner peripheral wall of the auxiliary sleeve 82 or the outer peripheral wall of the main rotating shaft 81, and a limiting block 84 extending into the limiting groove 83 is fixedly connected to the other. The limiting block 84 can rotate a certain angle around the main rotating shaft 81 within the limiting groove 83. The rotation angle should be less than 60°. In this disclosure, the rotation angle of the limiting block 84 within the limiting groove 83 is 25°. In this disclosure, the limiting groove 83 is provided on the inner peripheral wall of the auxiliary sleeve 82, and the limiting block 84 protrudes from the outer peripheral wall of the main rotating shaft 81.

[0088] The two groove walls of the limiting groove 83, which are directly opposite each other on the circumference of the main rotating shaft 81, are the limiting groove walls. When the limiting block 84 comes into contact with the limiting groove wall, it can prevent the limiting block 84 from continuing to rotate toward the side of the limiting groove wall.

[0089] Reference Figure 5 and Figure 6 The material shovel assembly 6 also includes a reset torsion spring 85. One end of the reset torsion spring 85 is fixedly connected to the main rotating shaft 81, and the other end is fixedly connected to the auxiliary sleeve 82, so that the auxiliary sleeve 82 is reset after rotating along the main rotating shaft 81 at a certain angle. The two reset torsion springs 85 have a force that drives the two dust baffles 7 to rotate toward the side that is closer to each other in a recoverable deformation state.

[0090] During the material shoveling process, the broken material may collide with the dust baffle 7. Therefore, the dust baffle 7, in conjunction with the auxiliary sleeve 82, rotates relative to the main shaft 81 to push away some of the broken material and prevent the dust baffle 7 from getting stuck. In addition, with the driving action of the third motor 71, it can also push away some of the broken material to a large extent, thereby preventing the dust baffle 7 from getting stuck as it moves forward with the material shoveling plate 61.

[0091] Reference Figure 7 and Figure 8 In order to prevent dust from leaking from the side of the dust baffle 7 away from the shovel plate 61 during the rotation of the dust baffle 7, in some embodiments of this application, a plurality of grooves 74 are provided at the end of the dust baffle 7 away from the shovel plate 61. The plurality of grooves 74 are spaced apart in a first direction. In the first direction, the part of the dust baffle 7 located between two adjacent grooves 74 is the insertion part 75 of the dust baffle 7. Each groove 74 penetrates both the end of the dust baffle 7 away from the shovel plate 61 and the dust baffle 7 along the thickness direction of the dust baffle 7. The grooves 74 on two adjacent dust baffles 7 are staggered in the first direction so that the insertion part 75 of any dust baffle 7 can be inserted into the groove 74 on another dust baffle 7. The groove 74 has a bottom wall 741 and two side walls 742. When the insertion part 75 is inserted into the groove 74, the side walls 742 of the groove 74 contact the insertion part 75 to reduce dust leakage from the groove 74.

[0092] Reference Figure 8To reduce dust leakage between the insertion part 75 and the bottom wall 741 of the groove, some embodiments of this application further include an auxiliary protection component 9. Each dust baffle 7 is fitted with an auxiliary protection component 9 at each groove 74. The auxiliary protection component 9 includes a sliding strip 91, a return spring 92, and two sliding plates 93. Each end of the sliding strip 91 contacts a groove sidewall 742, and the sliding strip 91 is slidably connected to the dust baffle 7 along the groove depth direction of the groove 74. One end of the return spring 92 is fixedly connected to the sliding strip 91, and the other end... One end is fixedly connected to the dust baffle 7. Specifically, the other end of the return spring 92 is fixedly connected to the bottom wall 741 of the groove 74; one end of the sliding piece 93 is fixedly connected to the sliding strip 91; the sliding piece 93 covers the two openings of the groove 74 distributed along the thickness direction, and the outer periphery of the sliding piece 93 extends to the outer periphery of the groove 74 and contacts the dust baffle 7. That is to say, in the thickness direction of the dust baffle 7, the dust baffle 7 is sandwiched between the two sliding pieces 93 so that the sliding piece 93 always closes the groove 74 during the movement of the sliding strip 91.

[0093] The reset spring 92 is a compression spring. When the plug part 75 presses the sliding bar 91 toward the bottom wall 741 of the groove 74, the reset spring 92 is compressed to a recoverable deformation state. When the plug part 75 moves toward the side away from the bottom wall 741 of the groove 74, the reset spring 92 drives the sliding bar 91 to move toward the side away from the bottom wall 741 of the groove 74, so that the sliding bar 91 is reset.

[0094] Reference Figure 9 To ensure dust blocking effect, when the dust baffle 7 moves with the shovel plate 61 to the limit shovel position of the shovel plate 61, one end of the dust baffle 7 is located outside the crushing box 1 and the other end is located inside the crushing box 1 to reduce dust leakage.

[0095] Reference Figure 9 and Figure 10 To further prevent dust leakage during the material shoveling process, a flexible baffle 15 with an installation strip 151 and multiple flexible strips 152 is provided on the crushing box 1. The multiple flexible strips 152 are distributed sequentially along the long side of the installation strip 151, and a gap is left between two adjacent flexible strips 152 so that each flexible strip 152 can sway along the installation strip 151. The installation strip 151 of the flexible baffle 15 is fixedly connected to the edge of the feed inlet 12 of the crushing box 1, and the flexible strips 152 of the flexible baffle 15 are in contact with the dust baffle 7 to reduce the leakage of dust from the crushing chamber 11 through the contact between the flexible strips 152 and the dust baffle 7.

[0096] The implementation principle of crushing crushed materials using crushing equipment is as follows: the entire crushing equipment is moved to the required position by the traveling vehicle 20, and then the crushing box 1 is adjusted to the feeding posture by the linear motor 22 and the second motor 23.

[0097] Next step: The second drive cylinder 62 drives the shovel assembly 6 forward. During this process, the dust baffle 7 is in a dust-blocking posture. If the rotation of the dust baffle 7 along the main shaft 81 cannot meet the shovel requirements during the shovel process, the third motor 71 can also drive the main shaft 81 to rotate to adapt to the shovel requirements. During the shovel process, the discharge port 13 is closed by the discharge sealing plate 41.

[0098] Next step: The second drive cylinder 62 pulls the shovel assembly 6 back into the crushing chamber 11, and the feed port 12 is closed by the feed sealing plate 51;

[0099] Next step: The linear motor 22 and the second motor 23 will adjust the crushing box 1 to the discharge posture;

[0100] Next step: The third motor 71 drives the dust baffle 7 to rotate, so as to adjust the dust baffle 7 to an open position. The crushed material on the dust baffle 7 will fall downward. After the multi-stage crushing component 3 crushes the crushed material to a certain amount, the discharge sealing plate 41 is opened to discharge the fine aggregate.

[0101] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A construction method for generating fine aggregate by demolishing a wall, characterized in that, Includes the following steps: S1: Demolish the non-load-bearing walls of the construction floor to obtain crushed material; S2: The crushed material is ground using a crushing device to obtain fine aggregate; the crushing device is located on the construction floor. The pulverizing equipment includes: A crushing box (1) having a crushing chamber (11), a feed inlet (12) and a discharge outlet (13); A multi-level crushing assembly (3) is arranged sequentially along a third direction. In the third direction, the multiple levels of the crushing assembly (3) are located between the feed inlet (12) and the discharge outlet (13). Each crushing assembly (3) includes two crushing rollers (31) arranged side-by-side along a first direction. The crushing rollers (31) are perpendicular to both the first and third directions. Each crushing roller (31) is rotatably connected to the crushing box (1) around its own axis. A crushing gap (32) is left between adjacent crushing rollers (31). The crushing gap (32) of the multiple levels decreases progressively from the feed inlet (12) to the discharge outlet (13). The crushing drive assembly (33) that drives two adjacent crushing rollers (31) in the same level crushing assembly (3) to rotate in opposite directions, from the feed inlet (12) to the discharge outlet (13), the two adjacent crushing rollers (31) in the same level crushing assembly (3) rotate toward the side that is closer to each other. The crushing box (1) has a feed sidewall (14) with the feed inlet (12) and the feed sidewall (14) is located in a direction parallel to the third direction; The crushing equipment also includes a rotary drive assembly (2), which includes a support frame (21) and a second motor (23). The crushing box (1) is rotatably connected to the support frame (21), and the crushing box (1) is parallel to the first direction along the rotation axis of the support frame (21) so that the crushing box (1) can be adjusted between the feeding posture and the discharging posture. In the feeding posture, the feed inlet (12) is located below the discharge outlet (13); In the discharge posture, the discharge port (13) is located below the feed port (12); The second motor (23) is connected between the support frame (21) and the crushing box (1) to drive the crushing box (1) to rotate along the support frame (21); The first direction, the second direction, and the third direction are perpendicular to each other to form a three-dimensional coordinate system, with the third direction being the vertical direction.

2. The construction method for generating fine aggregate by demolishing a wall according to claim 1, characterized in that, The rotary drive assembly (2) further includes a linear motor (22), which is connected between the second motor (23) and the support frame (21) to drive the second motor (23) to slide linearly along the support frame (21); the driving direction of the linear motor (22) is parallel to a third direction.

3. The construction method for generating fine aggregate by demolishing a wall according to claim 2, characterized in that, It also includes a material shovel assembly (6), which includes: A shovel plate (61) is slidably connected to the feed inlet (12) of the crushing box (1). The shovel plate (61) is perpendicular to the first direction along the sliding direction of the crushing box (1). The shovel plate (61) is located at the end of the feed inlet (12) away from the discharge outlet (13). The second drive cylinder (62) is connected between the shovel plate (61) and the crushing box (1) to drive the shovel plate (61) to slide along the crushing box (1).

4. The construction method for generating fine aggregate by demolishing a wall according to claim 3, characterized in that, The shovel end of the shovel plate (61) is integrally fixedly connected to a shovel end plate (63) having a flat bottom surface (631) and an inclined shovel surface (632), and the shovel end plate (63) is located outside the crushing box (1); The inclined shovel surface (632) is inclined from the shovel end plate (63) toward the shovel plate (61) in the direction from the feed inlet (12) to the discharge outlet (13) to form the inclined shovel surface (632); the flat bottom surface (631) of the shovel plate (61) is flush with the end wall of the crushing box (1) away from the discharge outlet (13), and the thickness of the inclined shovel surface (632) gradually decreases toward the side away from the shovel plate (61).

5. A construction method for generating fine aggregate by demolishing a wall according to claim 4, characterized in that, The shovel assembly (6) also includes two dust baffles (7), which are located on the side of the shovel plate (61) near the discharge port (13); the dust baffles (7) are hinged to the shovel plate (61), and the dust baffles (7) are parallel to the first direction along the rotation axis of the shovel plate (61) so that the dust baffles (7) can be adjusted between a dust-blocking posture and an open posture; In the dust-blocking posture, the two dust-blocking plates (7) are in contact with each other on the side away from the shovel plate (61) so that the shovel plate (61) and the two dust-blocking plates (7) form a shovel area (72) with openings at both ends. One end of the shovel area (72) is connected to the outside of the crushing box (1), and the other end is connected to the crushing chamber (11). In the open position, the two dust baffles (7) on the side away from the shovel plate (61) form a discharge gap for the crushed material to flow from the feed end to the discharge end of the crushing box (1).

6. A construction method for generating fine aggregate by demolishing a wall according to claim 5, characterized in that, The shovel assembly (6) also includes a third motor (71) connected between the shovel plate (61) and the dust baffle (7) to drive the dust baffle (7) to rotate along the shovel plate (61).

7. A construction method for generating fine aggregate by demolishing a wall according to claim 6, characterized in that, The shovel assembly (6) further includes a main rotating shaft (81) and an auxiliary sleeve (82); the axes of the main rotating shaft (81) and the auxiliary sleeve (82) coincide with the rotation axis of the dust baffle (7) along the shovel plate (61); The third motor (71) is connected between the shovel plate (61) and the main rotating shaft (81) to drive the main rotating shaft (81) to rotate along the shovel plate (61); the auxiliary sleeve (82) is fixedly connected to the dust baffle plate (7); The auxiliary sleeve (82) is sleeved on the outer peripheral wall of the main rotating shaft (81) and can rotate circumferentially along the main rotating shaft (81); The outer peripheral wall of the main rotating shaft (81) and the inner peripheral wall of the auxiliary sleeve (82) are provided with a limiting block (84) protruding on one of them, and a limiting groove (83) is provided on the other to accommodate the limiting block (84) and allow the limiting block (84) to rotate around the main rotating shaft (81) by a preset angle.

8. A construction method for generating fine aggregate by demolishing a wall according to claim 7, characterized in that, The shovel assembly (6) also includes a reset torsion spring (85), one end of which is fixedly connected to the main rotating shaft (81) and the other end is fixedly connected to the auxiliary sleeve (82). In a recoverable deformation state, the reset torsion spring (85) has a force that drives the two dust baffles (7) to rotate toward each other.

9. A construction method for generating fine aggregate by demolishing a wall according to any one of claims 5-8, characterized in that, The dust baffle (7) has multiple slots (74) at one end away from the shovel plate (61). The multiple slots (74) are spaced apart in a first direction. The part of the dust baffle (7) between two adjacent slots (74) is a plug-in part (75). The slots (74) of the two dust baffles (7) are staggered so that the plug-in part (75) on any dust baffle (7) can be inserted into the slot (74) on the other dust baffle (7) as the dust baffle (7) rotates.

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