Construction device and method for recycling construction waste to roads

Abstract

The present invention relates to the technical field of construction waste treatment, and specifically to a construction device and method for recycling construction waste into roads. The construction device includes a frame, a mixing component is fixedly installed near the top of the frame, a crushing component and a pumping component are connected to the mixing component, a first material preparation component is connected to the crushing component, a plurality of evenly distributed and retractable hammer bodies are arranged in the crushing component, a second material preparation component is connected to the pumping component, a discharging component is rotatably installed near the bottom of the frame corresponding to the mixing component and the second material preparation component, and a paving component is installed on the discharging component. The present application integrates the functions of crushing, mixing, and paving, and in the crushing process, not only solves the problem that steel bars and iron wires in construction waste are easily entangled in the crushing equipment, but also optimizes the construction process of recycling construction waste into roads, improves construction efficiency, and reduces construction costs.

Description

Technical Field

[0001] The present invention relates to the technical field of construction waste treatment, and in particular to a construction device and method for recycling construction waste into roads. Background Art

[0002] With the acceleration of urbanization, a large number of construction projects have been carried out, and the amount of construction waste is increasing day by day. Construction waste is mostly waste concrete, and the waste concrete contains steel bars and iron wires. Traditional methods of treating construction waste are mostly landfill or stacking, which not only occupies a large amount of land resources, but also may cause pollution to the soil, groundwater and other environments. At the same time, road construction requires a large amount of construction materials such as sand and gravel. If construction waste can be effectively recycled and reused in road projects, it can not only solve the problem of construction waste disposal, but also reduce the cost of road construction, and reduce the mining of natural aggregates, which has significant economic and environmental benefits.

[0003] At present, in the process of recycling construction waste into roads, it is necessary to first transport the collected waste concrete to a centralized processing plant. In order to prevent the steel bars and wires in the concrete from being entangled in the crushing device during the crushing process and affecting the crushing operation, it is necessary to first remove the steel bars and wires in the waste concrete, and then crush the waste concrete into recycled aggregates required for road construction. After the recycled aggregates are made, they are transported to the construction site for construction. In the current process of recycling construction waste into road construction, the preparation, transportation and storage of recycled aggregates require a lot of manpower and material resources, especially the removal of steel bars and wires in the waste concrete is not only labor-intensive, but also has a complicated crushing procedure and low efficiency. In addition, in the process of transporting the recycled aggregates to the construction site, not only will transportation costs be incurred, but due to the bumps and vibrations of the vehicle, aggregate segregation may also occur, thereby affecting the uniformity of the recycled aggregates in road construction.

[0004] Therefore, how to optimize the construction process of recycling construction waste into roads, improve construction efficiency and reduce construction costs is an urgent problem that technical personnel in this field need to solve. Summary of the invention

[0005] In order to optimize the construction process of recycling construction waste into roads, improve construction efficiency and reduce construction costs, the present application provides a construction device and method for recycling construction waste into roads.

[0006] The present application provides a construction device and method for recycling construction waste to roads, which adopts the following technical solutions: First aspect A construction device for recycling construction waste to roads, comprising a frame, with wheels installed on both sides of the frame, a mixing assembly fixedly installed on the frame near the top, a crushing assembly and a pumping assembly connected to the mixing assembly, a first material preparation assembly connected to the crushing assembly, a plurality of evenly distributed and retractable hammer bodies provided in the crushing assembly, a second material preparation assembly connected to the pumping assembly, a discharging assembly rotatably installed on the frame near the bottom corresponding to the mixing assembly and the second material preparation assembly, and a paving assembly installed on the discharging assembly.

[0007] Furthermore, the mixing assembly includes a mixing box, the upper end of which is connected to the discharge end of the crushing assembly, the lower end of which is fixedly connected to a receiving bucket corresponding to the discharge assembly, the outer side of the mixing box is fixedly and sealedly connected to a pressurizing bucket, an injection seam is provided on the side wall of the mixing box corresponding to the pressurizing bucket, and the end of the pressurizing bucket away from the mixing box is connected to the pumping assembly.

[0008] Furthermore, the crushing assembly includes a crushing box, the first material preparation assembly includes a first hopper, the first hopper is fixedly mounted on the upper end of the crushing box, the lower end of the crushing box is connected to the mixing assembly, the interior of the crushing box is rotatably connected to two symmetrically arranged driving shafts, the outer ends of the two driving shafts pass through the side walls of the crushing box and are fixedly connected to synchronous gears, the two synchronous gears are meshed with each other, the outer end of one of the driving shafts passes through the side walls of the crushing box and is transmission-connected to a driving member; the outer side of the driving shaft is rotatably connected to an eccentric cylinder, the outer side of the eccentric cylinder is provided with a roller cylinder fixedly connected to the driving shaft, a number of evenly distributed hammer bodies are slidably connected to the roller cylinder along its radial direction, and a spring is abutted and connected between the hammer body and the roller cylinder.

[0009] Furthermore, one end of the two eccentric cylinders is fixedly connected to a worm wheel, the crushing box is rotatably connected to a worm, the worm is meshed with the worm wheel, and the worm passes through the outer end of the crushing box and is fixedly connected to a knob.

[0010] Furthermore, the pumping assembly includes a plurality of delivery pumps arranged in parallel, the input end of the delivery pump is connected to the second material preparation assembly, and the output end of the delivery pump is connected to an end of the pressure bucket away from the mixing box.

[0011] Furthermore, the second material preparation assembly includes a second hopper, the lower end of the second hopper is fixedly connected to a first material preparation box corresponding to the material discharge assembly, the first material preparation box is fixedly provided with a second material preparation box inside, the second material preparation box is connected to the pumping assembly, the interior of the second hopper is fixedly connected to a third hopper fixedly and sealed, the material discharge port of the third hopper is aligned with the second material preparation box, and the upper end of the second material preparation box is fixedly installed with a conical filter cover corresponding to the material discharge port of the third hopper.

[0012] Furthermore, the discharging assembly includes a discharging pool, one end of the discharging pool is provided with an obliquely arranged discharging port, the end of the discharging pool away from the discharging port is rotatably connected to the bottom of the frame, the end of the discharging pool close to the discharging port is hingedly connected to the frame with a first telescopic member, and the spreading assembly is installed on the discharging pool at a position corresponding to the discharging port.

[0013] Furthermore, the paving assembly includes a discharge port sealing plate, which is rotatably connected to a position on the discharge pool corresponding to the discharge port, and a mounting frame is fixedly installed on the position on the discharge pool corresponding to the discharge port, a second telescopic member is hingedly connected between the discharge port sealing plate and the mounting frame, a pressure plate is rotatably connected to the end of the discharge port sealing plate away from the discharge pool, a third telescopic member is hingedly connected between the pressure plate and the mounting frame, and a trimming plate is detachably connected to the outer end of the pressure plate.

[0014] Furthermore, the frame is detachably connected to the rear of the concrete mixer truck, and the discharge hopper of the concrete mixer truck is aligned with the second material preparation assembly.

[0015] Second aspect A construction method for recycling construction waste to roads, comprising the following steps: S1. Set up a mobile pre-treatment station at the construction site or demolition site to preliminarily classify construction waste into concrete, masonry, wood and other impurities; S2. Transport concrete and masonry construction waste from the pre-processing site to the road construction section and stack them at a set distance; S3, mixing cement, water and admixture into a mixed fluid according to a set ratio; S4, putting concrete and masonry construction waste into the first material preparation component, and putting the mixed fluid into the second material preparation component; S5, starting the pumping component to spray the mixed fluid in the second material preparation component into the mixing component; S6, starting the crushing component to crush the concrete and masonry construction waste in the first material preparation component; S7, the crushed concrete and masonry construction wastes and the mixed fluid collide with each other inside the mixing component and are mixed into concrete and enter the discharging component; S8, using the discharging assembly to pour the concrete onto the ground of the road construction section, and using the wheels to control the overall movement of the construction device; S9. When the construction device is moved as a whole, the concrete poured on the ground of the road construction section is leveled in sequence using the paving components.

[0016] Beneficial effects achieved: This application integrates the functions of crushing, mixing, and paving. There is no need to equip the construction site with multiple scattered equipment, which reduces the time for equipment transportation and debugging. In the crushing process, it not only solves the problem that steel bars and wires in construction waste are easily entangled in the crushing equipment, but also optimizes the construction process of recycling construction waste to roads, improves construction efficiency, and reduces construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0018] Figure 2 It is a schematic diagram of the structural decomposition of an embodiment of the present application.

[0019] Figure 3 It is a schematic diagram of the internal structure of an embodiment of the present application.

[0020] Figure 4 It is a schematic diagram of the structural decomposition of a mixing component in an embodiment of the present application.

[0021] Figure 5 It is a schematic diagram of the structural decomposition of a crushing component in one embodiment of the present application.

[0022] Figure 6 It is a schematic diagram of the cross-sectional structure of a crushing component in one embodiment of the present application.

[0023] Figure 7 It is a schematic diagram of the three-dimensional structure of a discharging component in one embodiment of the present application.

[0024] Figure 8 It is a schematic diagram of the usage status of the paving component in one embodiment of the present application.

[0025] Fig. 9 This is a schematic diagram of the usage status of an embodiment of the present application.

[0026] Description of the accompanying drawings: 100, frame; 101, wheel; 200, mixing assembly; 201, mixing box; 202, receiving bucket; 203, pressure bucket; 204, injection slot; 205, mounting plate; 206, feeding hole; 207, buffer block; 208, reflux chamber; 300, crushing assembly; 301, crushing box; 302, driving shaft; 303, synchronous gear; 304, driving member; 3041, motor; 3042, driving pulley; 3043, driven pulley; 3044, transmission belt; 305, eccentric cylinder; 306, roller cylinder; 307, hammer body; 308, spring; 309, worm wheel; 310, worm; 311, knob; 3 12. Dial; 313. Scale mark; 314. Indicator mark; 400. Pumping assembly; 401. Delivery pump; 500. First material preparation assembly; 501. First hopper; 600. Second material preparation assembly; 601. Second hopper; 602. First material preparation box; 603. Second material preparation box; 604. Third hopper; 605. Conical filter cover; 700. Discharging assembly; 701. Discharging tank; 702. Discharging port; 703. First telescopic member; 800. Spreading assembly; 801. Discharging port sealing plate; 802. Mounting frame; 803. Second telescopic member; 804. Press plate; 805. Third telescopic member; 806. Trimming plate; 900. Concrete mixer truck. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-9 This application is described in further detail.

[0028] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0029] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] The embodiments of the present application disclose a construction device and method for recycling construction waste into roads.

[0031] Example 1 Please refer to Figures 1 to 9 In one embodiment of the present application, a construction device for recycling construction waste to roads includes a frame 100, wheels 101 are rotatably connected on both sides of the frame 100, a mixing assembly 200 is fixedly installed near the top of the frame 100, a crushing assembly 300 and a pumping assembly 400 are connected to the mixing assembly 200, a first material preparation assembly 500 is connected to the crushing assembly 300, a plurality of evenly distributed and retractable hammer bodies 307 are arranged in the crushing assembly 300, a second material preparation assembly 600 is connected to the pumping assembly 400, a discharging assembly 700 is rotatably installed on the frame 100 near the bottom thereof corresponding to the mixing assembly 200 and the second material preparation assembly 600, and a paving assembly 800 is installed on the discharging assembly 700.

[0032] The implementation principle of the construction device for recycling construction waste to roads in the embodiment of the present application is as follows: first, large pieces of construction waste are put into the first material preparation component 500, and the construction waste in the first material preparation component 500 will fall into the crushing component 300 under its own weight. The crushing component 300 controls the hammer body 307 to reciprocate at high speed, thereby crushing the waste concrete into aggregates suitable for road construction, and the crushed aggregates will fall into the mixing component 200 under the action of gravity.

[0033] While crushing the waste concrete, a mixed fluid of cement, water, and admixtures (including water reducing agent, early strength agent, and fiber reinforcement agent) is put into the second preparation component 600, and the pumping component 400 will input the mixed fluid into the mixing component 200 to mix with the crushed aggregate to form concrete. The new concrete and the broken steel wire will fall from the mixing component 200 to the discharging component 700, and the discharging component 700 will make the new concrete and the broken steel wire fall to the road surface to be paved according to the construction requirements. The paving component 800 then spreads the new concrete and the broken steel wire output by the discharging component 700, and spreads and preliminarily compacts the new concrete and the broken steel wire to form a road structure.

[0034] The present application integrates the functions of crushing, mixing, paving, etc., and the construction site does not need to be equipped with multiple scattered equipment, which reduces the transportation and debugging time of the equipment, optimizes the construction process of recycling construction waste to roads, improves construction efficiency, reduces construction costs, and in the crushing process, when the hammer body 307 is extended, the construction waste can be violently hammered, and then the construction waste is crushed into aggregates of suitable particle size to meet the particle size requirements of subsequent road construction materials. When the hammer body 307 is retracted, the hammer body 307 will be separated from the steel bars or iron wires in the waste concrete, thereby avoiding the steel bars or iron wires in the waste concrete from being entangled on the hammer body 307, which not only solves the problem that the steel bars and iron wires in the construction waste are easy to entangle the crushing equipment, but also can directly use the steel bars or iron wires in the waste concrete to construct the road, which not only improves the overall construction efficiency, but also improves the overall quality of the construction road. At the same time, each link is closely connected, which is conducive to ensuring the stability of the construction quality. It effectively solves the problems of land occupation and environmental pollution caused by the stacking of construction waste, converts construction waste into road construction materials, reduces the demand for mining of raw materials such as natural sand and gravel, realizes the sustainable utilization of resources, and conforms to the concept of environmental protection development.

[0035] Please refer to Figures 1 to 9 In one embodiment of the present application, the mixing component 200 includes a mixing box 201, the upper end of the mixing box 201 is connected to the discharge end of the crushing component 300, the lower end of the mixing box 201 is fixedly connected to the receiving bucket 202 corresponding to the discharge component 700, the outer side of the mixing box 201 is fixedly and sealedly connected to the pressurizing bucket 203, and the side wall of the mixing box 201 is provided with an injection seam 204 corresponding to the pressurizing bucket 203. The pressurizing bucket 203 has a large end and a small end, and the end of the pressurizing bucket 203 away from the mixing box 201 is the large end. The large end of the pressurizing bucket 203 is detachably and sealedly connected to the mounting plate 205 by bolt locking, and the mounting plate 205 is provided with a feed hole 206 connected to the output end of the pumping component 400.

[0036] During operation, the crushing component 300 crushes the construction waste into a suitable particle size, and then the crushing component 300 drops into the mixing box 201 from its discharge end. At the same time, the mixed fluid prepared by the second material preparation component 600 is pumped by the pumping component 400 and enters the pressure bucket 203 through the feed hole 206 on the mounting plate 205. The mixed fluid entering the pressure bucket 203 gradually increases in pressure during the flow process due to its large-end-in-small-end-out structural design. When the mixed fluid in a high-pressure state reaches the injection slit 204 on the side wall of the mixing box 201, it will be injected into the mixing box 201 at high speed. The high-speed injection of the mixed fluid flow forms a strong turbulent flow in the mixing box 201, which can not only impact and stir the construction waste particles in the box, but also promote the construction waste to fully contact and mix with the mixed fluid. It can also guide the direction of the long steel wire after falling, so that the front end of the long steel wire is offset towards the outlet direction of the discharge component 700 after falling. The evenly mixed materials flow to the discharging assembly 700 through the receiving bucket 202 at the lower end of the mixing box 201 under the action of gravity. The receiving bucket 202 gathers the materials and ensures smooth and concentrated discharging for subsequent precise paving construction.

[0037] The present application utilizes the structural design of the pressure bucket 203 and the injection seam 204 to allow the mixed fluid to enter the mixing box at high pressure and high speed. Compared with the traditional mixing method that simply relies on stirring blades, the intensity and efficiency of mixing are greatly enhanced, and the construction waste and the mixed fluid can be highly evenly mixed in a short time, ensuring the stability of concrete quality, which is conducive to improving the quality of road construction.

[0038] Please refer to Figures 1 to 9 In one embodiment of the present application, a buffer block 207 is fixedly installed on a side of the mixing box 201 away from the injection slot 204 , and a reflux cavity 208 arranged obliquely downward is provided on the buffer block 207 corresponding to the injection slot 204 .

[0039] During operation, when the mixed fluid ejected at high speed from the pressure bucket 203 through the injection slit 204 enters the mixing box 201, it will carry a large impact force. The existence of the buffer block 207 can block this part of the high-speed mixed fluid, so that its impact energy is buffered. It can not only prevent the mixed fluid from splashing onto the wall of the mixing box to form accumulation and affect the mixing effect, but also increase the structural strength of the mixing box 201 and prevent the impact energy from damaging the box structure of the mixing box 201. A part of the buffered mixed fluid will be directly mixed with the crushed construction waste in the mixing box 201, and the other part will flow along the reflux chamber 208 on the buffer block 207 through the gaps between the crushed construction waste. Since the reflux chamber 208 is set obliquely downward, this part of the mixed fluid will flow back to the bottom of the mixing box 201 along the reflux chamber 208 under the action of the impact force, and the refluxed mixed fluid will contact the crushed construction waste again at the bottom of the mixing box 201. This process forms a material cycle, and new ejected materials are continuously buffered and partially refluxed, so that the material mixing is more sufficient and uniform.

[0040] Please refer to Figures 1 to 9 In one embodiment of the present application, the crushing assembly 300 includes a crushing box 301, and the first material preparation assembly 500 includes a first hopper 501. The first hopper 501 is fixedly installed at the upper end of the crushing box 301. The lower end of the crushing box 301 is connected to the mixing assembly 200. The inside of the crushing box 301 is rotatably connected to two symmetrically arranged driving shafts 302. The outer ends of the two driving shafts 302 penetrate the side walls of the crushing box 301 and are fixedly connected to synchronous gears 303. The two synchronous gears 303 are meshed with each other, and one of them is The outer end of the driving shaft 302 passes through the side wall of the crushing box 301 and is transmission-connected to the driving member 304; the outer side of the driving shaft 302 is rotationally connected to the eccentric cylinder 305, and the outer side of the eccentric cylinder 305 is sleeved with a roller cylinder 306 fixedly connected to the driving shaft 302, and the roller cylinder 306 is slidingly connected along its radial direction with a number of evenly distributed hammer bodies 307, and a spring 308 is abutted between the hammer body 307 and the roller cylinder 306, and the spring 308 drives the inner end of the hammer body 307 to elastically abut and connect to the eccentric cylinder 305.

[0041] During operation, construction waste with steel bars or wires is collected and poured into the first hopper 501 of the first material preparation component. The first hopper 501, with its large opening and inclined inner wall design, allows the construction waste to slide smoothly into the crushing box 301 under the action of gravity. After the driving member 304 is started, it will drive one of the driving shafts 302 to rotate. Since the synchronous gears 303 at the outer ends of the two driving shafts 302 are meshed with each other, when one driving shaft 302 rotates, the other driving shaft 302 will rotate synchronously in the opposite direction, and the roller cylinder 306 will rotate together with the rotation of the driving shaft 302.

[0042] The rolling cylinder 306 will drive the hammer body 307 to rotate synchronously during the rotation process. At the same time, under the elastic force of the spring 308, the hammer body 307 always keeps the inner end elastically abutting against the eccentric cylinder 305. The hammer body 307 will perform radial expansion and contraction movement while rotating. By adjusting the deflection direction of the eccentric cylinder 305 so that the deflection direction of the eccentric cylinder 305 is close to the position of the symmetric center of the two roller cylinders 306, the hammer body 307 will extend when it is close to the symmetric center of the two roller cylinders 306, and retract when it is far away from the symmetric center of the two roller cylinders 306. In this way, the hammer body 307 will knock the construction waste in the crushing box 301 along the circumference of the roller cylinder 306, and will also squeeze the construction waste in the crushing box 301 along the axial direction of the roller cylinder 306. In this way, by using the coordinated operation of the hammer body 307 and the roller cylinder 306, larger pieces of construction waste can be gradually crushed into smaller particles that meet the requirements of road construction. In this process, as the hammer body 307 retracts into the inside of the roller cylinder 306, the steel bars or iron wires in the waste concrete can be separated from the hammer body 307, thereby preventing the steel bars or iron wires from being entangled in the hammer body 307 or the roller cylinder 306.

[0043] Please refer to Figures 1 to 9 In one embodiment of the present application, one end of each of the two eccentric cylinders 305 is fixedly connected to a worm wheel 309, and a worm 310 is rotatably connected to the crushing box 301. The worm 310 is meshed with the worm wheel 309, and the worm 310 passes through the outer end of the crushing box 301 and is fixedly connected to a knob 311.

[0044] During operation, the worm 310 is driven to rotate by twisting the knob 311, and the rotation of the worm 310 drives the worm wheel 309 meshing therewith to rotate. Since the worm wheel 309 and the eccentric cylinder 305 are fixedly connected, the rotation of the worm wheel 309 drives the eccentric cylinder 305 to rotate synchronously. At the same time, the self-locking characteristics between the worm 310 and the worm wheel 309 can be used to stably, reliably and effectively adjust the deflected position of the eccentric cylinder 305. After the deflected position of the eccentric cylinder 305 is properly adjusted to a position away from the symmetric center of the two roller cylinders 306, the extended length of the hammer body 307 when it is close to the symmetric center of the two roller cylinders 306 will become shorter. In this way, the hammering force and crushing effect of the hammer body 307 on the construction waste can be flexibly adjusted according to the actual material, block size and other conditions of the construction waste, so that the crushing assembly 300 can better adapt to the crushing requirements under different working conditions.

[0045] Since the composition and characteristics of the construction waste processed in different construction waste recycling projects are often different, this application uses the knob 311, the worm 310 and the worm gear 309 to adjust the design of the eccentric cylinder 305, providing a convenient adjustment method for the crushing operation. When faced with construction waste of different hardness and different sizes, the movement state of the hammer body 307 can be accurately adjusted to achieve a more efficient and more appropriate crushing effect. This adjustment structure enables this construction device to be applicable to various types of construction waste treatment scenarios. Whether it is processing waste concrete containing a lot of steel bars, or simple bricks and other construction waste, the ideal crushing effect can be achieved through adjustment, which broadens the application range of the equipment, improves the versatility and utilization rate of the equipment, and reduces the equipment investment cost of construction waste recycling construction as a whole.

[0046] Please refer to Figures 1 to 9 In a specific embodiment of the present application, a dial 312 is fixedly installed on the outer surface of the crushing box 301 corresponding to the knob 311, and a scale mark 313 is engraved on the dial 312. An indication mark 314 is set on the knob 311 corresponding to the scale mark 313.

[0047] During operation, when the operator needs to adjust the crushing parameters of the crushing assembly, the knob 311 is turned, and the knob 311 drives the worm 310 to rotate, and then the eccentric cylinder 305 is rotated through the worm gear 309 to change the telescopic amplitude of the hammer body 307 at the position of the symmetrical center of the two roller cylinders 306. While the knob 311 is turned, since it is provided with an indicator mark 314, and the scale mark 313 is engraved on the dial 312 fixedly installed on the outer side of the crushing box 301, the indicator mark 314 will move synchronously on the dial 312 with the rotation of the knob 311, indicating the corresponding scale position. The scale mark 313 is in a corresponding relationship with the telescopic amplitude of the hammer body 307. During equipment debugging or early setting, by performing crushing tests on different construction waste samples, the optimal crushing parameter state corresponding to each scale is determined, and recorded to form a reference standard. In this way, in actual construction operations, the operator can intuitively know the current crushing force and other parameter settings of the crushing component by observing the scale pointed to by the indicator mark 314, so that the operator can accurately adjust it according to the actual situation of the construction waste.

[0048] Please refer to Figures 1 to 9 In a specific embodiment of the present application, the driving member 304 includes a motor 3041, a driving pulley 3042 is fixedly mounted on the output shaft of the motor 3041, a driven pulley 3043 is mounted on a driving shaft 302, and the driven pulley 3043 and the driving pulley 3042 are connected by a transmission belt 3044.

[0049] During operation, after the motor 3041 is started, its output shaft will drive the driving pulley 3042 to rotate. When the driving pulley 3042 rotates, the driving belt 3044 set between it and the driven pulley 3043 transmits power to drive the driven pulley 3043 to rotate, and the driven pulley 3043 drives a driving shaft 302 connected to it to start rotating. Because the two driving shafts 302 are meshed with each other through the synchronous gear 303, when this driving shaft 302 rotates, the other driving shaft 302 will also rotate synchronously in the opposite direction, and finally realize the coordinated operation of the two driving shafts 302, providing a power basis for the subsequent eccentric cylinder 305 and the hammer body 307 and other components to perform crushing operations. The belt drive method not only has high transmission stability, but also has an overload protection function. At the same time, the belt drive structure is relatively simple. Its installation process mainly involves setting the transmission belt 3044 on the driving pulley 3042 and the driven pulley 3043, which is relatively convenient to operate.

[0050] It is understandable that in other embodiments of the present application, the driving member 304 may also be configured as a driving device such as an engine that can produce a high-speed rotation effect.

[0051] Please refer to Figures 1 to 9 In one embodiment of the present application, the pumping assembly 400 includes three parallel delivery pumps 401, the input end of the delivery pump 401 is connected to the second material preparation assembly 600, and the output end of the delivery pump 401 is connected to the feed hole 206 on the mounting plate 205 at one end of the pressure bucket 203 away from the mixing box 201.

[0052] During the operation, after the delivery pump 401 is started, it can pump the mixed fluid prepared in the second preparation component 600 into the pressure bucket 203. The mixed fluid entering the pressure bucket 203 is injected into the mixing box 201 at high speed through the injection slit 204 on the side wall of the mixing box 201 based on the pressurized structure of the pressure bucket 203 with the large end entering and the small end exiting, and is fully mixed with the crushed aggregates of the construction waste from the crushing component 300, and finally forms concrete that meets the requirements of road construction.

[0053] Please refer to Figures 1 to 9 In one embodiment of the present application, the second material preparation component 600 includes a second hopper 601, the lower end of the second hopper 601 is fixedly connected to the first material preparation box 602 corresponding to the discharge component 700, the first material preparation box 602 is fixedly framed with a second material preparation box 603, the second material preparation box 603 is connected to the input end of the pumping component 400, the interior of the second hopper 601 is fixedly connected to a third hopper 604 fixedly and sealed, the discharge port of the third hopper 604 is aligned with the second material preparation box 603, and the upper end of the second material preparation box 603 is fixedly installed with a conical filter cover 605 corresponding to the discharge port of the third hopper 604.

[0054] During operation, the mixed fluid is first poured into the second hopper 601. The second hopper 601, with its larger opening and inclined inner wall design, allows the mixed fluid to smoothly slide into the third hopper 604 by gravity, and the mixed fluid in the third hopper 604 will flow into the second preparation box 603 through the conical filter cover 605. When the second preparation box 603 is full, it will overflow into the first preparation box 602, and then directly flow from the first preparation box 602 into the discharge assembly 700. The fluid inside the second preparation box 603 is pumped to the mixing box 201 through the pumping component 400, and finally fully mixed with the crushed aggregates of the construction waste from the crushing component 300 to form concrete, which enters the discharge component 700. The concrete entering the discharge component 700 will continue to mix with the mixed fluid that directly flows into the discharge component 700 from the first preparation box 602. The conical filter cover 605 can intercept large particles of impurities or lumps that may exist in the mixed fluid and other parts that do not meet the requirements, and only allow the mixed fluid that meets the particle size standard to pass through its filter screen into the second preparation box 603, thereby ensuring that the mixed fluid entering the input end of the pumping component 400 has good uniformity and quality, and avoiding problems such as large particles of impurities entering the delivery pipeline and causing blockages.

[0055] Please refer to Figures 1 to 9 In one embodiment of the present application, the discharge component 700 includes a discharge pool 701, one end of the discharge pool 701 is provided with an obliquely arranged discharge port 702, the end of the discharge pool 701 away from the discharge port 702 is rotatably connected to the bottom of the frame 100, and the end of the discharge pool 701 close to the discharge port 702 is hingedly connected to the frame 100 with a first telescopic member 703, and the paving component 800 is installed on the discharge pool 701 at a position corresponding to the discharge port 702.

[0056] During the working process, the concrete for road construction mixed in the mixing assembly 200 will flow into the discharge pool 701 of the discharge assembly 700 and further mix with the mixed fluid directly flowing into the discharge assembly 700 from the first preparation box 602. During the mixing, the first telescopic member 703 can be used to repeatedly telescope within a certain range to drive the discharge pool 701 to swing as a whole to further promote the mixing of the mixed fluid and the crushed aggregate. The discharge pool 701 plays the role of receiving, mixing and storing concrete. When the first telescopic member 703 is used to telescope, the first telescopic member 703 will push the discharge pool 701 to rotate around its rotation connection point, thereby changing the inclination angle of the discharge pool 701. As the inclination angle of the discharge pool 701 changes, the height and inclination degree of the discharge port 702 also change accordingly, so that the speed and flow rate of concrete flowing out of the discharge port 702 can be accurately adjusted according to the specific requirements of road construction. When the discharge flow rate needs to be increased, the discharge port 702 of the discharge pool 701 can be appropriately raised by extending the first telescopic member 703 to increase the speed and flow rate of concrete flowing out by gravity; conversely, shortening the first telescopic member 703 can reduce the discharge flow rate.

[0057] Please refer to Figures 1 to 9 In one embodiment of the present application, the paving assembly 800 includes a discharge port sealing plate 801, which is rotatably connected to a position on the discharge pool 701 corresponding to the discharge port 702, and a mounting frame 802 is fixedly installed on the position on the discharge pool 701 corresponding to the discharge port 702, a second telescopic member 803 is hingedly connected between the discharge port sealing plate 801 and the mounting frame 802, and a pressure plate 804 is rotatably connected to the end of the discharge port sealing plate 801 away from the discharge pool 701, a third telescopic member 805 is hingedly connected between the pressure plate 804 and the mounting frame 802, and a trimming plate 806 is detachably connected to the outer end of the pressure plate 804.

[0058] During operation, when the second telescopic member 803 performs a telescopic movement, the second telescopic member 803 drives the discharge port sealing plate 801 to rotate around the connection point between the discharge port 702 and the discharge tank 701. In this way, the opening and closing degree of the discharge port 702 can be flexibly controlled to achieve precise adjustment of the concrete discharge amount. For example, when the discharge amount needs to be reduced, the second telescopic member 803 contracts, so that the discharge port sealing plate 801 rotates in the direction close to the discharge port 702, reducing the opening size of the discharge port; conversely, the extension of the second telescopic member 803 can increase the opening area of ​​the discharge port, allowing more concrete to flow out. After the concrete flows out of the discharge port 702, the third telescopic member 805 telescopes and drives the pressing plate 804 to move, so that it presses down on the concrete that has just flowed out. The pressing plate 804 relies on its own gravity and the pressure applied by the third telescopic member 805 to perform preliminary compaction on the concrete, reduce the gap between the concrete particles, improve its density, and lay the foundation for the subsequent further compaction process. At the same time, it also helps to ensure the flatness of the road base or surface layer after paving. During the paving process, as the entire paving assembly 800 moves along the road construction direction, the trimming plate 806 can trim the edge of the paved concrete. It can scrape off excess concrete, make the road edge neat, meet the shape and size required by the design, ensure the appearance quality of the road, and prevent the scattering of edge concrete from affecting the surrounding environment. In addition, the detachable design of the trimming plate 806 is convenient for replacement or adjustment according to the width requirements, edge shape, etc. of different road construction, which improves the adaptability of the equipment.

[0059] Please refer to Figures 1 to 9 In one embodiment of the present application, the first telescopic member 703, the second telescopic member 803 and the third telescopic member 805 are all configured as hydraulic telescopic cylinders. The structure of the hydraulic telescopic cylinder is relatively simple. As long as the cleanliness of the hydraulic oil and the normal maintenance of the system are guaranteed, its working reliability is high. The pressure provided by the hydraulic system can make the hydraulic telescopic cylinder generate a large push-pull force. By controlling the flow and pressure of the hydraulic oil, the telescopic speed and position of the telescopic member can be accurately controlled. In equipment with a high degree of automation, this precise control can achieve high precision and stability of equipment action and meet complex work requirements.

[0060] Please refer to Figures 1 to 9 In one embodiment of the present application, the frame 100 is detachably connected to the rear of the concrete mixer truck 900 , and the discharge hopper of the concrete mixer truck 900 is aligned with the second material preparation assembly 600 .

[0061] During operation, the frame 100 is installed at the rear of the concrete mixer truck 900 through a detachable connection method. This connection method facilitates installation and disassembly operations and can be flexibly combined or separated according to actual construction requirements. When the two are connected, the discharge hopper of the concrete mixer truck 900 and the second material preparation assembly 600 are in an aligned state. During construction, the premixed mixed fluid in the concrete mixer truck 900 can be directly transported to the second material preparation assembly 600 through the discharge hopper, which not only makes full use of the transportation and storage functions of the mixer truck, but also can use the concrete mixer truck 900 to pull the frame 100 as a whole.

[0062] Example 2 A construction method for recycling construction waste to roads, comprising the following steps: S1. Set up multiple mobile pre-treatment stations at construction sites or demolition sites, and use lightweight sorting equipment and manual assistance to immediately classify newly generated construction waste. Preliminary classification of construction waste into concrete, masonry, metal, wood and other impurities. The establishment of mobile pre-treatment stations at construction sites or demolition sites takes into account the dispersed sources of construction waste. Through preliminary on-site classification, construction waste can be quickly separated according to its main components to avoid the complexity of subsequent mixed treatment. For example, separating concrete, masonry from wood and other impurities is conducive to taking targeted follow-up treatment measures and improving the efficiency of resource recycling.

[0063] S2. Ordinary transport vehicles are used to transport concrete and masonry construction waste from the pre-processing site to the road construction section and stack them at a set distance; ordinary transport vehicles are widely available, which reduces the cost of equipment investment. Stacking at a set distance is to facilitate the construction equipment to obtain materials nearby and reduce the material handling distance, which is conducive to improving construction efficiency and flexibly adjusting material supply according to the construction progress.

[0064] S3. Design and adjust the proportion of cement, water and admixtures to prepare recycled concrete with stable performance. Admixtures include water reducers, early strength agents and fiber reinforcements. Water reducers can improve the fluidity of concrete, early strength agents can accelerate the early strength development of concrete, and fiber reinforcements can improve the toughness of concrete. Through precise proportioning, ensure that the mixed fluid can meet the standards of road load-bearing and durability after being mixed with construction waste.

[0065] S4. Put concrete and masonry construction waste into the first material preparation component 500, and put the mixed fluid into the second material preparation component 600; put the construction waste and the mixed fluid into the corresponding first material preparation component 500 and second material preparation component 600 respectively, so as to realize the orderly preparation of materials.

[0066] S5, start the pumping component 400 to spray the mixed fluid in the second material preparation component 600 into the mixing component 200; the pumping component 400 sprays the mixed fluid into the mixing component 200, and uses the pressure of the pumping to make the mixed fluid enter the mixing area at high speed. This method can ensure that the mixed fluid is quickly and evenly distributed in the mixing component, and on the other hand, the impact force generated by the high-speed spraying helps to better mix with the aggregate made by crushing the construction waste in the subsequent mixing, thereby improving the mixing efficiency.

[0067] S6, start the crushing assembly 300 to crush the concrete and masonry construction waste in the first material preparation assembly 500; the crushing assembly 300 starts to crush the construction waste, and the hammer body 307, roller cylinder 306 and other structures inside it work together. The eccentric cylinder 305 drives the hammer body 307 to produce irregular hammering movements, and cooperates with the rolling of the roller cylinder 306 to crush the large pieces of construction waste into particles of appropriate particle size, so as to meet the requirements of road concrete for aggregate particle size and provide a uniform material basis for subsequent mixing.

[0068] S7, the crushed concrete and masonry construction waste and the mixed fluid collide with each other inside the mixing component 200 and are mixed into concrete and enter the discharging component 700; the crushed construction waste and the mixed fluid collide with each other inside the mixing component 200 due to the special structural design of the mixing component. For example, the injection slot 204 in the mixing box 201 allows the mixed fluid to rush in at high speed and collide with the falling construction waste aggregates, and achieve uniform mixing under the physical collision to form concrete that can be used for road construction.

[0069] S8. Use the discharge assembly 700 to pour the concrete onto the ground of the road construction section, and use the wheels 101 to control the overall movement of the construction device; adjust the inclination angle of the discharge pool 701 through the first telescopic member 703 to accurately control the discharge flow and direction of the concrete so that it falls to the specified position according to the construction requirements. At the same time, use the wheels on the frame to move the construction device to achieve linear construction along the road and ensure the continuity of the construction.

[0070] S9. When the construction device is moved as a whole, the concrete poured on the ground of the road construction section is leveled in sequence using the paving assembly 800.

[0071] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A construction device for recycling construction waste to roads, characterized in that: The invention comprises a frame (100), wheels (101) are installed on both sides of the frame (100), a mixing assembly (200) is fixedly installed on the frame (100) near the top thereof, a crushing assembly (300) and a pumping assembly (400) are connected to the mixing assembly (200), a first material preparation assembly (500) is connected to the crushing assembly (300), a plurality of evenly distributed and retractable hammer bodies (307) are arranged in the crushing assembly (300), a second material preparation assembly (600) is connected to the pumping assembly (400), a discharging assembly (700) is rotatably installed on the frame (100) near the bottom thereof corresponding to the mixing assembly (200) and the second material preparation assembly (600), and a spreading assembly (800) is installed on the discharging assembly (700).

2. A construction device for recycling construction waste to roads according to claim 1, characterized in that: The mixing assembly (200) comprises a mixing box (201), the upper end of the mixing box (201) is in communication with the discharge end of the crushing assembly (300), the lower end of the mixing box (201) is fixedly connected to a receiving bucket (202) corresponding to the discharge assembly (700), the outer side of the mixing box (201) is fixedly and sealedly connected to a pressurizing bucket (203), a spraying slit (204) is provided on the side wall of the mixing box (201) corresponding to the pressurizing bucket (203), and the end of the pressurizing bucket (203) away from the mixing box (201) is connected to the pumping assembly (400).

3. The construction device for recycling construction waste to roads according to claim 1, characterized in that: The crushing assembly (300) comprises a crushing box (301), the first material preparation assembly (500) comprises a first hopper (501), the first hopper (501) is fixedly mounted on the upper end of the crushing box (301), the lower end of the crushing box (301) is connected to the mixing assembly (200), the interior of the crushing box (301) is rotatably connected to two symmetrically arranged driving shafts (302), the outer ends of the two driving shafts (302) penetrate the side wall of the crushing box (301) and are fixedly connected to synchronous gears (303), the two synchronous gears (303) are 3) meshing with each other, wherein the outer end of one of the driving shafts (302) penetrates through the side wall of the crushing box (301) and is transmission-connected to a driving member (304); an eccentric cylinder (305) is rotationally connected to the outer side of the driving shaft (302); a roller cylinder (306) fixedly connected to the driving shaft (302) is sleeved on the outside of the eccentric cylinder (305); a plurality of hammer bodies (307) uniformly distributed are slidably connected to the roller cylinder (306) along its radial direction; a spring (308) is abutted and connected between the hammer bodies (307) and the roller cylinder (306).

4. A construction device for recycling construction waste to roads according to claim 3, characterized in that: One end of each of the two eccentric cylinders (305) is fixedly connected to a worm wheel (309); a worm (310) is rotatably connected to the crushing box (301); the worm (310) is meshed with the worm wheel (309); and the outer end of the worm (310) that passes through the crushing box (301) is fixedly connected to a knob (311).

5. The construction device for recycling construction waste to roads according to claim 2, characterized in that: The pumping assembly (400) comprises a plurality of delivery pumps (401) arranged in parallel, wherein an input end of the delivery pump (401) is connected to the second material preparation assembly (600), and an output end of the delivery pump (401) is connected to an end of the pressure bucket (203) away from the mixing box (201).

6. The construction device for recycling construction waste to roads according to claim 1, characterized in that: The second material preparation component (600) comprises a second hopper (601), the lower end of the second material preparation box (602) being fixedly connected to a first material preparation box (602) corresponding to the material discharge component (700), the first material preparation box (602) being internally fixedly provided with a second material preparation box (603), the second material preparation box (603) being connected to the pumping component (400), the interior of the second material preparation box (601) being internally fixedly connected to a third material hopper (604) being fixedly and sealedly connected, the material discharge port of the third material hopper (604) being aligned with the second material preparation box (603), and the upper end of the second material preparation box (603) being fixedly installed with a conical filter cover (605) corresponding to the material discharge port of the third hopper (604).

7. The construction device for recycling construction waste to roads according to claim 1, characterized in that: The discharge assembly (700) comprises a discharge pool (701), one end of the discharge pool (701) is provided with an obliquely arranged discharge port (702), the end of the discharge pool (701) away from the discharge port (702) is rotatably connected to the bottom of the frame (100), the end of the discharge pool (701) close to the discharge port (702) is hingedly connected to the frame (100) by a first telescopic member (703), and the spreading assembly (800) is installed on the discharge pool (701) at a position corresponding to the discharge port (702).

8. The construction device for recycling construction waste to roads according to claim 7, characterized in that: The paving assembly (800) includes a discharge port sealing plate (801), the discharge port sealing plate (801) is rotatably connected to a position on the discharge pool (701) corresponding to the discharge port (702), a mounting frame (802) is fixedly installed at a position on the discharge pool (701) corresponding to the discharge port (702), a second telescopic member (803) is hingedly connected between the discharge port sealing plate (801) and the mounting frame (802), a pressure plate (804) is rotatably connected to one end of the discharge port sealing plate (801) away from the discharge pool (701), a third telescopic member (805) is hingedly connected between the pressure plate (804) and the mounting frame (802), and a trimming plate (806) is detachably connected to the outer end of the pressure plate (804).

9. A construction device for recycling construction waste to roads according to any one of claims 1 to 8, characterized in that: The frame (100) is detachably connected to the rear of the concrete mixer truck (900), and the discharge hopper of the concrete mixer truck (900) is aligned with the second material preparation assembly (600).

10. A construction method for recycling construction waste to roads, characterized in that: The following steps are involved: S1. Set up a mobile pre-treatment station at the construction site or demolition site to preliminarily classify construction waste into concrete, masonry, wood and other impurities; S2. Transport concrete and masonry construction waste from the pre-processing site to the road construction section and stack them at a set distance; S3, mixing cement, water and admixture into a mixed fluid according to a set ratio; S4, putting concrete and masonry construction waste into the first material preparation component (500), and putting the mixed fluid into the second material preparation component (600); S5, starting the pumping component (400) to spray the mixed fluid in the second material preparation component (600) into the mixing component (200); S6, starting the crushing component (300) to crush the concrete and masonry construction waste in the first material preparation component (500); S7, the crushed concrete and masonry construction waste and the mixed fluid collide with each other inside the mixing component (200) and are mixed into concrete which enters the discharging component (700); S8, using the discharging assembly (700) to pour the concrete onto the ground of the road construction section, and using the wheels (101) to control the entire construction device to move; S9. When the construction device is moved as a whole, the concrete poured on the ground of the road construction section is paved in sequence using the paving assembly (800).

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