Civil engineering construction waste treatment device and working method thereof

Abstract

The invention relates to the technical field of crushing processing equipment, in particular to a civil engineering construction waste treatment device and a working method thereof.The civil engineering construction waste treatment device comprises a crushing roller set and a feeding hopper arranged on the upper side of the crushing roller set, a support is fixed to the rear side of the crushing roller set, and two opposite movable frames are arranged on the front side of the support in a left-right sliding mode; the rotating table is rotatably mounted on the lower sides of the movable frames through shafts, the crushing tong heads which are distributed in a staggered mode are mounted on the two movable frames, large-scale concrete in the feeding hopper can be crushed and pinched off, and therefore the concrete can be crushed and pinched off according to the size specification, and force generated when the crushing tong heads move relatively acts on the two sides of a concrete block; and concrete can be limited and prevented from being pushed out of the feeding hopper, in this way, the concrete can be better crushed by the crushing roller set, the crushing tong head can further adjust the occlusion crushing pinch-off angle so as to flexibly correspond to different positions of concrete blocks, and the using effect of overall crushing occlusion is improved.

Description

Technical Field

[0001] The invention relates to the technical field of crushing and processing equipment, in particular to a civil engineering construction waste processing device and a working method thereof. Background Art

[0002] In traditional construction waste treatment, crushing rollers are commonly used equipment for handling concrete blocks. However, in actual operation, when concrete waste is put into the feed hopper for crushing by the crushing roller, due to the irregular shape and size of the concrete blocks, some longer or larger concrete blocks are difficult to be effectively rotated and crushed by the crushing roller; this situation leads to the existing construction processing process, the staff have to pre-process some larger concrete blocks first, smash them into relatively small blocks and then put them into the feed hopper. This process undoubtedly adds additional manpower and time costs, especially at a waste treatment site after the demolition of a large building, where a large number of concrete blocks need to be processed. If this method of pre-processing first and then crushing is followed, the entire processing process will become cumbersome, resulting in low overall processing efficiency. This incomplete crushing method will also affect the treatment effect of concrete waste, because concrete blocks that are not fully crushed may affect subsequent waste classification, recycling and other links; In addition, a large amount of dust will be generated during the crushing process of concrete blocks. At existing construction sites, there is often a lack of effective dust collection and treatment measures. The spread of dust will not only pollute the environment of the construction site and affect the health of construction workers. For example, long-term inhalation of dust may lead to occupational diseases such as pneumoconiosis. It will also have an adverse effect on the surrounding environment. Therefore, it is necessary to propose a civil engineering construction waste treatment device and its working method to improve the existing technology. Summary of the invention

[0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a method for improving the processing efficiency and effect of concrete blocks in civil engineering construction waste, while solving the dust pollution problem in the crushing process, so as to solve the problems mentioned in the above background technology.

[0004] In order to achieve the above-mentioned object, the present invention is realized by the following technical scheme: a civil engineering construction waste processing device, comprising a crushing roller group and a feed hopper arranged on the upper side of the crushing roller group, a bracket is fixed on the rear side of the crushing roller group, two relatively movable frames are slidably arranged on the front side of the bracket, and a rotating table is rotatably installed on the lower side of the movable frame, and staggered crushing clamps are installed on the opposite sides of the two rotating tables, and are movably located on both sides above the feed hopper, respectively, for crushing and clamping concrete blocks; A reinforcing support is installed between the two adjacent crushing jaws, for strengthening the overall support strength between the crushing jaws, and each reinforcing support is arranged on the opposite side of each crushing jaw, for pushing and supporting the concrete block when the crushing jaw is crushing; The reinforcement support member includes a reinforcing rib locked on one side of the crushing jaw head and a movable ejection assembly movably installed in the middle of the reinforcing rib; The movable push-up assembly comprises two movable support rods slidingly passing through the middle of the reinforcing rib, the front ends of the two movable support rods are hinged with a top plate, and the rear side of the top plate is hinged with an electric push rod, the other end of the electric push rod is hinged with the rear end of the movable support rod to form a triangular support, the front and rear sides of the movable support rod are sleeved with a first support spring and a second support spring and are elastically supported and connected to the reinforcing rib, and when the electric push rod is extended to push the top plate to flip, the concrete is elastically pushed to feed the crushing jaw head; A plurality of dust collection openings distributed in a dense matrix are provided in the middle of the front side of the top plate.

[0005] A further improvement is that each dust suction port on the front side of the top plate can be removably provided with a vertex for supporting the concrete block, and each vertex side is provided with a plurality of lateral through holes, and the lateral through holes are connected to the dust suction port.

[0006] A further improvement based on the above technical solution is that the apex and the dust suction port are provided with matching threads, and the apex is screwed and disassembled on the dust suction port by screwing the threads.

[0007] A further improvement based on the above technical solution is that a rear conical negative pressure hopper connected to each dust suction port is installed on the rear side of the top plate, the rear conical negative pressure hopper is connected to an air pipe, a vacuum cleaner is installed on the bracket, and a dust suction pipe is installed at the suction end of the vacuum cleaner, and the dust suction pipe is connected to the air pipe.

[0008] A further improvement based on the above technical solution is that horizontal plates are fixedly arranged on both sides of the feed hopper, and the two movable frames are respectively located above the two horizontal plates, and the waste is clamped and placed on the horizontal plates by the crushing clamp heads.

[0009] A further improvement based on the above technical solution is that the crushing jaw head includes a metal clamp plate fixedly arranged on a rotating table, an upper crushing tooth opening is fixedly provided on the upper side of the front end of the metal clamp plate, a crushing lower jaw plate is hingedly connected to the lower side of the front end of the metal clamp plate, and a first hydraulic telescopic rod for pushing the crushing lower jaw plate to rotate toward the upper crushing tooth opening to form a bite state, and the first hydraulic telescopic rod is axially connected to the crushing lower jaw plate.

[0010] A further improvement based on the above technical solution is that two transverse guide rods are fixedly provided on the top of the bracket, and two sliding sleeves are provided on the transverse guide rods, a connecting steel rod is connected between the front and rear sliding sleeves of the two transverse guide rods, the two movable frames are respectively fixed on the two sliding sleeves, and second hydraulic telescopic rods for pushing the two groups of sliding displacements to the left and right are respectively installed on both sides of the bracket.

[0011] A further improvement based on the above technical solution is that a rotating motor for controlling the rotation of the rotating table is installed on one side of the movable frame.

[0012] The invention discloses a working method of a device for treating construction waste of civil engineering. The method comprises the following steps: putting concrete waste into a feeding hopper and crushing it by a crushing roller group. Some larger or longer pieces of concrete waste will stay in the feeding hopper. At this time, the staggered crushing jaws are moved toward the feeding hopper by controlling the relative movement of two movable frames, and the rotation angle of the rotating table is controlled so that the crushing jaws can crush and pinch off the larger or longer concrete in the feeding hopper from different angles. A reinforcing support is connected between the two crushing jaws to enhance the overall structural strength of the crushing jaws of the movable frame. At the same time, the reinforcing support plays a role of pushing and supporting force on the other side when the crushing jaws crush and pinch off the concrete. The electric push rod of the reinforcing support is extended and extended to push the top plate. The top plate pushes part of the concrete to feed the crushing jaws on the other side. The first support spring and the second support spring act elastically on the top plate to adapt to different shapes of concrete. When the top plate pushes and feeds elastically, the dust suction port of the top plate is used to generate high pressure to absorb dust, and dust is removed while the crushing roller group and the crushing jaws are crushing.

[0013] By adopting the above technical solution, the present invention has the following advantages compared with the existing technology: The present invention provides movable frames that can move relatively on both sides above the feed hopper, and the two movable frames are equipped with staggered crushing jaws, which can crush and pinch off a wide range of concrete in the feed hopper, thereby crushing and pinching off concrete of different sizes. The force of the crushing jaws when moving relatively acts on both sides of the concrete block, and can also limit the concrete to prevent it from being pushed into the feed hopper, so that it can be better crushed by the crushing roller group. The crushing jaws can also adjust the angle of bite, crushing and pinching, so as to flexibly correspond to different positions of the concrete block, and improve the overall crushing bite use effect. A reinforcing support is provided between the adjacent crushing jaws or on one side, and corresponds to the crushing jaw on the other side. The reinforcing rib connection of the reinforcing support can not only greatly improve the overall structural strength and stability of the adjacent crushing jaws, but also a movable push-up assembly is provided on the reinforcing rib. The movable push-up assembly is formed by two movable support rods, a top plate and an electric push rod movably connected to each other to form a stable triangular support, and is elastically supported and connected to the reinforcing rib through the first support spring and the second support spring on the movable support rod. This feature can use the vertical surface of the top plate to support both sides of the concrete block for stability when the two movable frames are relatively displaced, and this supporting force is elastic under the action of the first support spring and the second support spring, and can be very flexibly adapted to the uneven surface of the concrete block, and has good applicability. The telescopic action of the electric push rod is used to push the top plate to flip a certain angle, and specifically push part of the concrete block elastically to the upper crushing tooth mouth and the crushing lower jaw plate of the crushing jaw to assist in feeding, so that the crushing jaw can bite and crush the concrete block more accurately and efficiently, greatly improving the overall use effect and efficiency of the equipment. In addition, a negative pressure dust suction effect can be generated by opening a plurality of dust suction holes on the top plate, and combined with the supporting effect and feeding effect of the top plate, the dust generated during the crushing work can be directly absorbed near the crushing working area of ​​the crushing jaws, and the dust elimination efficiency is high. In order to prevent the negative pressure dust suction effect from being blocked, densely distributed and detachable vertices are used to contact the concrete, which makes it less likely for the force of the concrete to directly act on the dust suction holes and cause blockage, allowing the lateral through holes to smoothly absorb dust, and the vertices have better anti-slip properties in contact with the concrete, thereby improving the supporting effect with the concrete. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings: Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the structure of the bracket and the crushing pliers head of the present invention; Figure 3 It is a structural schematic diagram of the movable frame and the crushing tongs head of the present invention; Figure 4 It is a schematic diagram of the structure of the crushing jaw head and the reinforcement support member of the present invention; Figure 5 It is a structural schematic diagram of the reinforcement support member of the present invention; Figure 6 For the present invention Figure 6 A schematic diagram of the structure from another perspective; Figure 7 It is a structural schematic diagram of the vertex and the top plate of the present invention; Figure 8 It is a schematic diagram of the vertex structure of the present invention; Fig. 9 It is a structural schematic diagram of the bracket and the movable frame of the present invention; In the figure: a crushing roller group 1, a feed hopper 2, a transverse plate 21, a bracket 3, a transverse guide rod 30, a second hydraulic telescopic rod 31, a sliding sleeve 32, a connecting steel rod 33, a movable frame 4, a rotating table 42, a rotating motor 5, a crushing clamp head 6, a metal clamping plate 60, an upper crushing tooth mouth 61, a crushing lower jaw plate 62, a first hydraulic telescopic rod 63, a reinforcing support 7, a movable push-up assembly 70, a reinforcing rib 71, a movable support rod 72, a first supporting spring 721, a second supporting spring 722, a top plate 73, a dust suction port 731, an electric push rod 74, a vertex 75, a lateral through hole 751, a rear conical negative pressure bucket 76, an air pipe 77, a vacuum cleaner 8, and a dust suction pipe 81. DETAILED DESCRIPTION

[0015] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0016] like Figure 1-9 As shown, the present invention provides a technical solution of a civil engineering construction waste treatment device: it includes a crushing roller group 1 and a feeding hopper 2 arranged on the upper side of the crushing roller group 1, a bracket 3 is fixed on the rear side of the crushing roller group 1, and two relatively movable frames 4 are slidably arranged on the front side of the bracket 3. Specifically, when the movable frame 4 is dynamically adjusted, two transverse guide rods 30 are fixed on the top of the bracket 3, and two sliding sleeves 32 are slidably sleeved on the transverse guide rods 30, and a connecting steel rod 33 is connected between the sliding sleeves 32 opposite to each other at the front and rear of the two transverse guide rods 30, and the two movable frames 4 are respectively fixed on the two sliding sleeves 32, and second hydraulic telescopic rods 31 that drive the two groups of sliding displacements to the left and right are respectively installed on both sides of the bracket 3. The sliding sleeves 32 are driven to slide left and right along the transverse guide rods 30 by the second hydraulic telescopic rods 31 on both sides of the bracket 3, which can drive the movable frame 4 and its The crushing jaws 6 on the movable frame 4 are moved relative to or opposite to each other and adjusted to a suitable position, and a rotating table 42 is installed on the lower shaft of the movable frame 4. The crushing jaws 6 are installed on the opposite side of the two rotating tables 42, and are respectively movably located on both sides above the feed hopper 2 to crush and clamp the concrete blocks. The staggered distribution of the crushing jaws 6 can clamp and crush and bite off both sides of large pieces of concrete waste from different directions and a wide range of positions, such as long strips or plates of large pieces of concrete waste, to avoid the problem of material jamming caused by traditional unidirectional extrusion. Then the rotating table 42 can be directional adjusted. A rotating motor 5 for controlling the rotation of the rotating table 42 is installed on one side of the movable frame 4. The rotating angle of the rotating table 42 is controlled by the rotating motor 5, so that the crushing jaws 6 cut into the concrete blocks in an inclined, vertical or horizontal posture to meet the crushing needs of waste materials of different shapes; In this embodiment, a reinforcing support member 7 is installed between two adjacent crushing jaws 6 at the front and rear, which is not only used to strengthen the overall supporting strength between the crushing jaws 6, but also each reinforcing support member 7 is arranged on the opposite side of each crushing jaw 6, and can also be used to push and support the concrete block when the crushing jaw 6 is crushing, and the reinforcing support member 7 includes a reinforcing rib 71 locked on one side of the crushing jaw 6 and a movable pushing assembly 70 movably installed in the middle of the reinforcing rib 71, and the two sides of the reinforcing rib 71 are locked between the two adjacent crushing jaws 6 by screws, which mainly improves the overall strength and stability of each crushing jaw 6, and the movable pushing assembly 70 includes two movable support rods 72 sliding through the middle of the reinforcing rib 71, the front ends of the two movable support rods 72 are hinged with a top plate 73, and the rear side of the top plate 73 is hinged with an electric push rod. The electric push rod 74 has the other end movably hinged with the rear end of the movable support rod 72 to form a stable triangular support, which improves the service life and allows the top plate 73 to stably push and contact with the concrete. The front and rear sides of the movable support rod 72 are sleeved with a first support spring 721 and a second support spring 722 and are elastically supported and connected to the reinforcing rib 71. When the electric push rod 74 extends to push the top plate 73 to flip, it elastically pushes and supports the concrete to the bite and crushing area of ​​the crushing jaw 6 for auxiliary feeding. In this way, the crushing jaw 6 can bite and crush the concrete block more accurately and efficiently. In addition, the electric push rod 74 pushes the top plate 73 to flip, squeezing the concrete block toward the crushing jaw 6, realizing the continuous processing of "crushing and feeding", which greatly improves the overall use effect and efficiency of the equipment. At the same time, a plurality of dust suction openings 731 distributed in a dense matrix are opened in the middle of the front side of the top plate 73. These dust suction openings 731 can produce a negative pressure dust suction effect. While cooperating with the support effect and feeding effect of the above-mentioned top plate 73, they can also be close to the crushing working area of ​​the crushing jaw 6, directly absorb the dust generated during the crushing operation, and reduce the escape of dust during the crushing operation of the crushing jaw 6 or the crushing roller group 1.

[0017] In order to avoid clogging of the dust suction port 731 when the top plate 73 contacts the concrete, thereby improving its flow ideality, each dust suction port 731 on the front side of the top plate 73 can be removably provided with a vertex 75. This disassembly method is a threaded tightening connection. Matching threads are provided at the vertex 75 and the dust suction port 731. The vertex 75 is removed from the dust suction port 731 by threaded tightening. This connection method is simple and convenient, and is convenient for later maintenance and replacement. The vertex 75 is in a matrix against the concrete block, which improves the anti-slip property of the concrete. A plurality of lateral through holes 751 are opened on the side of each vertex 75. The lateral through holes 751 are connected to the dust suction port 731. Such lateral through holes 751 are arranged on the inner side of the matrix, so that larger concrete blocks or debris are difficult to enter the lateral through holes 751, so that the lateral through holes 751 can smoothly operate to absorb dust, thereby significantly reducing the PM2.5 concentration at the construction site.

[0018] In order to achieve negative pressure dust collection at the above-mentioned dust collection ports 731, a rear conical negative pressure bucket 76 connected to each dust collection port 731 is installed on the rear side of the top plate 73, the rear conical negative pressure bucket 76 is connected to an air pipe 77, a vacuum cleaner 8 is installed on the bracket 3, and a dust collection pipe 81 is installed at the suction end of the vacuum cleaner 8, and the dust collection pipe 81 is connected to the air pipe 77. In this way, the dust collection ports 731 of the top plate 73 can synchronously generate negative pressure dust collection through the operation of the vacuum cleaner 8.

[0019] In this embodiment, horizontal plates 21 are respectively fixedly arranged on both sides of the feed hopper 2, and two movable frames 4 are respectively located above the two horizontal plates 21. By moving the movable frames 4 left and right in combination with the rotation of the crushing jaws 6 by the rotating platform 42, the crushing jaws 6 can clamp the waste and temporarily place it on the horizontal plates 21 on both sides of the feed hopper 2, so as to avoid excessive waste directly accumulating and clogging the crushing roller group 1. In addition, this structure can clamp out some waste that is difficult to be crushed without manual removal, which is safer and more convenient to use. The crushing jaws 6 include a metal clamping plate 60 fixedly arranged on the rotating platform 42, an upper crushing tooth mouth 61 is fixedly arranged on the upper side of the front end of the metal clamping plate 60, a crushing lower jaw plate 62 is hinged on the lower side of the front end of the metal clamping plate 60, and the metal clamping plate 60 is fixedly arranged on the rotating platform 42. The inner side of the plate 60 is movably hinged with a first hydraulic telescopic rod 63 for pushing the crushing jaw plate 62 to rotate upward toward the crushing tooth mouth 61 to form a clamping and biting state, and the first hydraulic telescopic rod 63 is axially connected to the crushing jaw plate 62, so that the crushing jaw plate 62 can be rotated up and down by the extension and contraction of the first hydraulic telescopic rod 63 to achieve clamping or crushing and pinching of concrete. This structure is relatively simple, but by staggering the distribution of each crushing jaw 6, the simultaneous large-scale crushing effect on both sides of the concrete can be greatly improved. A sensor can be set and integrated in the feed hopper 2 to monitor the size of the concrete block in real time, and feedback is given to the control system to adjust the displacement speed of the movable frame 4 and the rotation angle of the crushing jaw 6.

[0020] A more specific working method is that concrete waste is put into the feed hopper 2 and crushed by the crushing roller group 1. The crushing roller group 1 processes conventional size waste, and some larger or longer pieces of concrete waste that have not been crushed will stay in the feed hopper 2 and trigger the movable frame 4 to move. At this time, the second hydraulic telescopic rod 31 is extended to control the relative movement of the two movable frames 4 so that the staggered crushing jaws 6 are displaced toward the feed hopper 2, and the rotation angle of the rotating table 42 is controlled by the rotating motor 5, so that the crushing jaws 6 can crush and pinch off the larger or longer concrete in the feed hopper 2 from different angles. When the crushing jaws 6 are working, the rotation of the upper crushing tooth mouth 61 is mainly controlled by the extension and contraction of the first hydraulic telescopic rod 63, and the upper crushing tooth mouth 61 is cooperated to achieve bite crushing. The processed waste is crushed for the second time by the crushing roller group 1, and the qualified crushed materials enter the subsequent classification and recycling link, and during the crushing operation, the two crushing jaws 6 are A reinforcing support member 7 is connected to the movable frame 4 to enhance the overall structural strength of the crushing jaw 6 of the movable frame 4. At the same time, the reinforcing support member 7 plays a role in the pushing support force on the other side when the crushing jaw 6 crushes and clamps the concrete, and the electric push rod 74 of the reinforcing support member 7 is extended and extended to push the top plate 73. The top plate 73 pushes part of the concrete to feed the crushing jaw 6 on the other side. The first support spring 721 and the second support spring 722 elastically act on the top plate 73 to adapt to the different shapes of concrete. While the top plate 73 is elastically pushing and feeding, the vacuum cleaner 8 is used to make the dust suction port 731 of the top plate 73 synchronously generate high-pressure dust absorption, so as to quickly remove dust from the crushing working area adjacent to the crushing roller group 1 and the crushing jaw 6, and some waste materials that are difficult to be crushed and waste materials that need to be removed can also be clamped to the cross plate 21 through the crushing jaw 6, which greatly improves the use effect and efficiency of the equipment.

[0021] It should be noted that the civil engineering construction waste treatment device of the present invention mainly improves the above-mentioned structure, and the functions, components and structures not mentioned therein can be implemented by using components and structures in the prior art that can achieve corresponding functions.

[0022] The present invention has been described in detail above through specific embodiments, but these do not constitute a limitation of the present invention. Without departing from the principle of the present invention, those skilled in the art may also make many variations and improvements, which should also be regarded as the protection scope of the present invention.

Claims

1. A civil engineering construction waste treatment device, comprising a crushing roller group and a feeding hopper arranged on the upper side of the crushing roller group, characterized in that: A bracket is fixed on the rear side of the crushing roller group, and two movable frames are slidably arranged on the front side of the bracket, and a rotating table is rotatably installed on the lower side of the movable frame. Crushing clamp heads are staggered and arranged on opposite sides of the two rotating tables, and are movably located on both sides above the feed hopper, respectively, for crushing and clamping concrete blocks; A reinforcing support is installed between the two adjacent crushing jaws, for strengthening the overall support strength between the crushing jaws, and each reinforcing support is arranged on the opposite side of each crushing jaw, for pushing and supporting the concrete block when the crushing jaw is crushing; The reinforcement support member includes a reinforcing rib locked on one side of the crushing jaw head and a movable ejection assembly movably installed in the middle of the reinforcing rib; The movable push-up assembly comprises two movable support rods slidingly passing through the middle of the reinforcing rib, the front ends of the two movable support rods are hinged with a top plate, and the rear side of the top plate is hinged with an electric push rod, the other end of the electric push rod is hinged with the rear end of the movable support rod to form a triangular support, the front and rear sides of the movable support rod are sleeved with a first support spring and a second support spring and are elastically supported and connected to the reinforcing rib, and when the electric push rod is extended to push the top plate to flip, the concrete is elastically pushed to feed the crushing jaw head; A plurality of dust collection openings distributed in a dense matrix are provided in the middle of the front side of the top plate.

2. A civil engineering construction waste treatment device according to claim 1, characterized in that: Each dust suction port on the front side of the top plate can be detachably provided with a vertex for resisting against the concrete block, and a plurality of lateral through holes are opened on the side of each vertex, and the lateral through holes are connected with the dust suction port.

3. A civil engineering construction waste treatment device according to claim 2, characterized in that: The apex and the dust suction opening are provided with matching threads, and the apex is detached from the dust suction opening by screwing the threads.

4. A civil engineering construction waste treatment device according to claim 1 or 2, characterized in that: A rear conical negative pressure bucket connected to each dust suction port is installed on the rear side of the top plate, and the rear conical negative pressure bucket is connected to an air pipe. A vacuum cleaner is installed on the bracket, and a dust suction pipe is installed at the suction end of the vacuum cleaner, and the dust suction pipe is connected to the air pipe.

5. The civil engineering construction waste treatment device according to claim 1, characterized in that: Horizontal plates are fixedly arranged on both sides of the feeding hopper, and the two movable frames are respectively located above the two horizontal plates, and the waste is clamped and placed on the horizontal plates by the crushing clamp heads.

6. The civil engineering construction waste treatment device according to claim 1, characterized in that: The crushing jaw head includes a metal clamping plate fixedly arranged on a rotating table, an upper crushing tooth opening is fixedly arranged on the upper side of the front end of the metal clamping plate, a crushing lower jaw plate is hingedly connected to the lower side of the front end of the metal clamping plate, and a first hydraulic telescopic rod for pushing the crushing lower jaw plate to rotate toward the upper crushing tooth opening and forming a bite state is movably hingedly connected to the inner side of the metal clamping plate, and the first hydraulic telescopic rod is axially connected to the crushing lower jaw plate.

7. The civil engineering construction waste treatment device according to claim 1, characterized in that: Two transverse guide rods are fixedly provided on the top of the bracket, and two sliding sleeves are slidingly provided on the transverse guide rods. A connecting steel rod is connected between the sliding sleeves of the two transverse guide rods facing each other front and back. The two movable frames are respectively fixed on the two sliding sleeves. Second hydraulic telescopic rods that push two groups of sliding left and right displacements are respectively installed on both sides of the bracket.

8. The civil engineering construction waste treatment device according to claim 1, characterized in that: A rotating motor for controlling the rotation of the rotating table is installed on one side of the movable frame.

9. The working method of a civil engineering construction waste treatment device according to claim 1, characterized in that: By feeding concrete waste from a feed hopper and crushing it by a crushing roller group, some larger or longer pieces of concrete waste will remain in the feed hopper. At this time, the two movable frames are controlled to move relative to each other so that the staggered crushing jaws are displaced toward the feed hopper, and the rotation angle of the rotating table is controlled so that the crushing jaws can crush and pinch off the larger or longer concrete in the feed hopper from different angles. A reinforcement support is connected between the two crushing jaws to enhance the overall structural strength of the crushing jaws of the movable frame. At the same time, the reinforcement support plays a role in the pushing support force on the other side when the crushing jaws crush and pinch off the concrete, and the electric push rod of the reinforcement support is extended to push the top plate, and the top plate pushes part of the concrete to feed the crushing jaw on the other side. The first support spring and the second support spring elastically act on the top plate to adapt to different shapes of concrete. While the top plate is elastically pushing and feeding, the dust suction port of the top plate is used to generate high-pressure dust absorption, and dust is removed while the crushing roller group and the crushing jaw are crushing.

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