A construction waste disposal and recycling equipment

Abstract

This utility model relates to a construction waste disposal and recycling device, belonging to the field of construction waste treatment technology. The device includes a fixed frame, a jaw crusher, and a secondary crushing mechanism. The jaw crusher uses a guide plate to guide the initially crushed concrete to the upper part of two screen plates, and drives a moving frame to vibrate the two screen plates. This facilitates the vibration screening of the concrete falling onto the screen plates, separating the smaller concrete pieces after initial crushing. Simultaneously, a drive assembly drives a round rod to move multiple corresponding levers back and forth above the upper part of the screen plates during screening, which helps disperse the concrete accumulated above the upper part of the screen plates, preventing concrete from piling up on the screen plates. This ensures that the smaller concrete pieces after initial crushing are fully screened and separated from the larger concrete pieces, avoiding repeated crushing of the smaller concrete pieces, thereby improving crushing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of construction waste treatment technology, and in particular to a construction waste disposal and reuse equipment. Background Technology

[0002] Construction waste refers to waste generated from urban demolition, road maintenance, etc., such as cement blocks and concrete. In order to transform construction waste into recycled aggregates and building products, realize the recycling of resources, and meet the requirements of sustainable development, construction waste will be processed and reused. Construction waste needs to be crushed during processing.

[0003] Currently, the crushing process for concrete in construction waste typically employs a tiered crushing technique. This usually involves first using a jaw crusher to initially crush the concrete, breaking large pieces into smaller ones. Then, crushing rollers are used to further crush the initially crushed concrete blocks. After the jaw crusher completes the initial crushing, some of the concrete has already been broken into smaller pieces. When these smaller pieces are mixed with the remaining concrete that has not yet been fully crushed and then crushed again, it results in repeated crushing, which affects the crushing efficiency. Utility Model Content

[0004] Therefore, it is necessary to provide a construction waste disposal and reuse equipment to address the problem that repeated crushing occurs when smaller pieces of crushed concrete are mixed with concrete that has not yet been fully crushed and then crushed again, thus affecting the crushing efficiency.

[0005] It includes: a fixed frame, a jaw crusher, and a secondary crushing mechanism, wherein the jaw crusher is installed on the top of the fixed frame, and the secondary crushing mechanism is installed on the inner side of the fixed frame;

[0006] A screening mechanism includes a screening frame installed at the top of a secondary crushing mechanism. A drive assembly is provided on one side of the screening frame. A first opening and two second openings are provided at the bottom of the screening frame. The two second openings are located on both sides of the bottom of the screening frame. A guide plate is fixedly connected to the upper end of the inner wall of the screening frame. A movable frame is slidably connected to the inner wall of the screening frame. Screen plates are fixedly connected to both sides of the inner wall of the movable frame. The screen plates are inclined, and the lower end of the screen plates is located above the first opening.

[0007] In one embodiment, the screening mechanism further includes two round rods slidably connected to the inner wall of the screening frame. The two round rods are respectively located above the top of the movable frame on both sides. Four levers are fixedly connected to the surface of each round rod. The levers are located above the screen plate and are inclined, with the inclination angle of the levers matching the inclination angle of the corresponding screen plate. During the reciprocating movement of the levers above the higher end of the screen plate, it helps to disperse the concrete accumulated above the higher end of the screen plate.

[0008] In one embodiment, the drive assembly includes a first motor fixedly connected to one side of the screening frame. The output shaft of the first motor is fixedly connected to a reciprocating lead screw, and a slide bar is mounted on the surface of the reciprocating lead screw. One end of each of the two round rods is fixedly connected to one side of the slide bar. This facilitates the reciprocating movement of multiple levers corresponding to the drive rods above the higher end of the screen plate.

[0009] In one embodiment, the guide plate has a ridge-like shape, with its lower end positioned above the higher end of the sieve plate. This facilitates better placement of the crushed concrete onto the higher end of the sieve plate via the inclined surface of the guide plate.

[0010] In one embodiment, multiple evenly distributed partitions are fixedly connected to both sides of the top of the guide plate, with one side of the top of each partition being inclined. This facilitates dividing the top of the guide plate into multiple areas, allowing the pre-crushed concrete to be dispersed and fall onto the screen plate under the guidance of the guide plate.

[0011] In one embodiment, an inclined plate is fixedly connected to the lower end of the sieve plate, and the lower end of the inclined plate is located above the second opening. This facilitates the guidance of concrete passing through the sieve plate, ensuring that the concrete fully falls through the second opening.

[0012] In one embodiment, two limiting rods are fixedly connected to the inner wall of the screening frame, and the inner wall of the round rod is slidably connected to the surface of the limiting rod. This facilitates supporting and limiting the movement of the round rod.

[0013] In one embodiment, a feeding frame is fixedly connected to both sides of the bottom end of the screening frame, and the top end of the feeding frame communicates with the second opening. This facilitates the feeding of crushed concrete discharged from the second opening. Beneficial effects

[0014] 1. In the above screening mechanism, the guide plate guides the pre-crushed concrete to the upper part of the two screen plates, and the drive moving frame drives the two screen plates to vibrate. This facilitates the vibration screening of the concrete falling on the screen plates, separating the smaller concrete pieces after pre-crushing. The drive component drives the round rod to move multiple corresponding levers back and forth above the upper part of the screen plates during screening. This helps to disperse the concrete that accumulates above the upper part of the screen plates, preventing the concrete from piling up on the screen plates. This ensures that the smaller concrete pieces after pre-crushing are fully screened and separated from the larger concrete pieces, avoiding repeated crushing of the smaller concrete pieces, thereby improving the crushing efficiency.

[0015] 2. The setting of multiple partitions helps to divide the top of the guide plate into multiple areas, which helps to disperse the pre-crushed concrete onto the screen plate through the guidance of the guide plate. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the installation structure of the screening mechanism and the secondary crushing mechanism of this utility model;

[0019] Figure 3 This is a cross-sectional view of the screening frame of this utility model;

[0020] Figure 4 This is a schematic diagram of the installation structure of the sieve plate and inclined plate of this utility model;

[0021] Figure 5 This is a schematic diagram of the lever structure of this utility model.

[0022] Figure label:

[0023] 100. Fixed frame; 200. Jaw crusher; 300. Secondary crushing mechanism; 400. Screening mechanism; 410. Screening frame; 411. First opening; 412. Second opening; 413. Limiting rod; 420. Guide plate; 421. Partition plate; 430. Moving frame; 440. Screen plate; 441. Inclined plate; 450. Round rod; 451. Pulley; 460. Drive assembly; 461. First motor; 462. Reciprocating screw; 463. Slide rod; 470. Discharge frame. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0025] The following is combined with Figures 1-5 This utility model describes a construction waste disposal and recycling device.

[0026] In one embodiment, a construction waste disposal and recycling device includes: a fixed frame 100, a jaw crusher 200, and a secondary crushing mechanism 300. The jaw crusher 200 is installed on the top of the fixed frame 100, and the secondary crushing mechanism 300 is installed on the inner side of the fixed frame 100.

[0027] The screening mechanism 400 includes a screening frame 410 installed at the top of the secondary crushing mechanism 300. A drive assembly 460 is provided on one side of the screening frame 410. The bottom end of the screening frame 410 is provided with a first opening 411 and two second openings 412. The two second openings 412 are located on both sides of the bottom end of the screening frame 410. A guide plate 420 is fixedly connected to the upper end of the inner wall of the screening frame 410. A movable frame 430 is slidably connected to the inner wall of the screening frame 410. Screen plates 440 are fixedly connected to both sides of the inner wall of the movable frame 430. The screen plates 440 are inclined and the lower end of the screen plates 440 is located above the first opening 411.

[0028] In this embodiment, the top of the screening frame 410 is connected to the bottom of the jaw crusher 200, and the concrete crushed by the jaw crusher 200 will fall into the screening frame 410.

[0029] It should be noted that a vibrating motor is fixedly connected to the inner wall of the screening frame 410. The output shaft of the vibrating motor is fixedly connected to the bottom end of the moving frame 430. The vibrating motor is started by the controller, and the output shaft of the vibrating motor will drive the moving frame 430 to vibrate, thereby causing the moving frame 430 to drive the screen plate 440 to vibrate. A protective frame is fixedly connected to one side of the inner wall of the screening frame 410, and the vibrating motor is set inside the protective frame to protect the vibrating motor.

[0030] Both sides of the sieve plate 440 are fixedly connected to sliders. The surface of the sliders is slidably connected to the inner wall of the sieve frame 410. The inner wall of the sieve frame 410 is provided with a sliding groove that matches the slider. Both sides of the top and bottom of the moving frame 430 are fixedly connected to baffles. The baffles fit against the inner wall of the sieve frame 410 and protect the sliding groove.

[0031] The secondary crushing mechanism 300 includes a crushing box, two crushing rollers, two meshing gears, and a drive motor. The top of the crushing box is fixedly connected to the bottom of the screening frame 410, and the top opening of the crushing box is connected to the first through-hole 411. The two crushing rollers are rotatably connected to the inner wall of the crushing box, and one end of each crushing roller is fixedly connected to one end of each of the two gears. The output shaft of the drive motor is fixedly connected to the other end of one of the gears. When the drive motor is started by the controller, the output shaft of the drive motor will drive the gear to rotate, and under the interaction of the two gears, the two crushing rollers will rotate in opposite directions to carry out the crushing operation.

[0032] Jaw crusher 200 includes:

[0033] Front and rear walls: The front and rear walls, together with the side plates, form the outer shell of the crusher, protecting the internal components from the influence of the external environment, and also serving to support and fix components such as the moving jaw and the fixed jaw.

[0034] Electric motor: Provides power to the jaw crusher 200. Generally, a three-phase asynchronous motor is selected. The motor is connected to the drive shaft through a coupling and transmits power to other parts of the crusher.

[0035] V-belts and pulleys: The power of the electric motor is transmitted to the pulleys via the belt, and the pulleys then drive the drive shaft to rotate.

[0036] Drive shaft: This is a crucial component for transmitting power. It is mounted on the frame via bearings. One end of the drive shaft has a pulley, and the other end is connected to an eccentric shaft, transmitting the rotational motion of the motor to the eccentric shaft.

[0037] Fixed jaw: Fixed to the front wall of the frame, it is the fixed crushing surface of the crusher. The working surface of the fixed jaw is usually inlaid with wear-resistant jaw plates, which are generally made of wear-resistant materials such as high manganese steel to improve their service life.

[0038] The moving jaw is the active crushing surface of the crusher, connected to the drive shaft via an eccentric shaft. Driven by the eccentric shaft, the moving jaw performs periodic reciprocating motion, forming a crushing chamber with the fixed jaw to compress and crush the material.

[0039] Eccentric shaft: One end is mounted on the bearing housing of the frame, and the other end is connected to the moving jaw. The eccentric structure of the eccentric shaft causes the moving jaw to oscillate around the center line of the crusher while rotating, thereby achieving the crushing of materials. The eccentric shaft is usually made of high-quality alloy steel, which has been quenched and tempered to have high strength and toughness.

[0040] Toggle plate: It is a component that connects the moving jaw and the rear wall. It not only supports the moving jaw, but also acts as a safety device when the crusher is overloaded.

[0041] like Figure 3 , Figure 4 and Figure 5 As shown, the screening mechanism 400 also includes two round rods 450 that are slidably connected to the inner wall of the screening frame 410. The two round rods 450 are located above the top of the movable frame 430 on both sides. Four levers 451 are fixedly connected to the surface of the round rods 450. The levers 451 are located above the screen plate 440. The levers 451 are inclined, and the inclination angle of the levers 451 is the same as the inclination angle of the corresponding screen plate 440.

[0042] In this embodiment, the lever 451 is a steel component. The lever 451 does not contact the opposite surface of the screen plate 440. When the moving frame 430 drives the screen plate 440 to vibrate, the vibration of the screen plate 440 and the moving frame 430 does not affect the round rod 450 and the lever 451.

[0043] like Figure 2 and Figure 4 As shown, the drive assembly 460 includes a first motor 461 fixedly connected to one side of the screening frame 410. The output shaft of the first motor 461 is fixedly connected to a reciprocating screw 462. A slide bar 463 is mounted on the surface of the reciprocating screw 462. One end of each of the two round rods 450 is fixedly connected to one side of the slide bar 463.

[0044] In this embodiment, when the first motor 461 is started by the controller, the output shaft of the first motor 461 will drive the reciprocating screw 462 to rotate. Under the limiting action of the round rod 450, the rotation of the reciprocating screw 462 will drive the slide rod 463 to reciprocate in the horizontal direction.

[0045] A mounting plate is fixedly connected to one side of the screening frame 410. The surface of the reciprocating screw 462 is rotatably connected to the inner wall of the mounting plate. Corrugated sleeves are fixedly connected between the slide rod 463 and the opposite side of the mounting plate, and between the slide rod 463 and the opposite side of the screening frame 410. The corrugated sleeves are rubber components. The reciprocating screw 462 is located inside the corrugated sleeve. When the slide rod 463 moves, it will drive the corresponding corrugated sleeve to extend and retract. The corrugated sleeves protect the reciprocating screw 462.

[0046] like Figure 2 and Figure 3As shown, the overall shape of the guide plate 420 is ridge-shaped, and the lower end of the guide plate 420 is located above the higher end of the sieve plate 440.

[0047] In this embodiment, the lever 451 is located below the lower end of the guide plate 420. There is a certain distance between the lower end of the guide plate 420 and the higher end of the screen plate 440. During the vibration of the screen plate 440 driven by the moving frame 430, the screen plate 440 and the guide plate 420 do not affect each other and do not affect the guide plate 420 from guiding the crushed concrete onto the screen plate 440.

[0048] like Figure 3 As shown, multiple evenly distributed partitions 421 are fixedly connected to both sides of the top of the guide plate 420, and one side of the top of the partition 421 is inclined.

[0049] In this embodiment, multiple partitions 421 divide the top of the guide plate 420 into multiple areas. When the broken concrete falls onto the guide plate 420, the partitions 421 disperse the concrete falling onto the guide plate 420.

[0050] like Figure 4 As shown, an inclined plate 441 is fixedly connected to the lower end of the sieve plate 440, and the lower end of the inclined plate 441 is located above the second opening 412.

[0051] In this embodiment, during the operation of the device, when the sieve plate 440 drives the inclined plate 441 to vibrate, the lower end of the inclined plate 441 and the inner bottom wall of the screening frame 410 do not affect each other.

[0052] like Figure 5 As shown, two limiting rods 413 are fixedly connected to the inner wall of the screening frame 410, and the inner wall of the round rod 450 is slidably connected to the surface of the limiting rod 413.

[0053] In this embodiment, the inner wall of the round rod 450 is provided with a sliding groove that matches the limiting rod 413. During the horizontal movement of the round rod 450, the surface of the round rod 450 will slide along the surface of the limiting rod 413, and the limiting rod 413 will support and limit the round rod 450.

[0054] like Figure 3 As shown, a feeding frame 470 is fixedly connected to both sides of the bottom end of the screening frame 410, and the top of the feeding frame 470 is connected to the second opening 412. The feeding frame 470 guides the crushed concrete discharged from the second opening 412.

[0055] Working principle: The concrete to be crushed is poured into the jaw crusher 200 for initial crushing. The crushed concrete enters the screening frame 410, and under the action of the inclined surface of the guide plate 420 and multiple baffles 421, the crushed concrete will fall from multiple areas at the top of the guide plate 420 to the higher end of the screen plate 440. During this process, the driving frame 430 drives the screen plate 440 to vibrate. Under the vibration of the screen plate 440 and the action of the inclined surface, the concrete on the screen plate 440 will move and be screened during the movement. Concrete smaller than the mesh size of the screen plate 440 will fall from the screen plate 440 to the second opening 412, and some of the falling concrete will enter the second opening 412 under the guidance of the inclined plate 441. The concrete is discharged through the second port 412 and the discharge frame 470. Concrete larger than the mesh of the screen plate 440 will move along the inclined surface of the screen plate 440 and enter the secondary crushing mechanism 300 through the first port 411 for secondary crushing. During the screening process of the screen plate 440, the first motor 461 is started by the controller. Under the action of the reciprocating screw 462 and the slide bar 463, the two round rods 450 and the corresponding levers 451 will move back and forth above the higher end of the screen plate 440. During the reciprocating movement, the levers 451 will move the concrete that has accumulated above the higher end of the screen plate 440, so that the accumulated mixed soil is dispersed, so that the initially crushed concrete can be fully screened through the screen plate 440.

[0056] Note: The reciprocating screw 462 is represented by two threaded grooves with the same pitch and opposite directions, connected at both ends by a transition curve. The rotation of the reciprocating screw 462 causes the side of the helical groove to push the slider placed in the helical groove to make axial reciprocating motion. Therefore, when the reciprocating screw 462 rotates, it will drive the slide rod 463 to move reciprocally in the horizontal direction.

[0057] It should be noted that the motors and other components mentioned above are all devices with relatively mature existing technologies. The specific model can be selected according to actual needs. The motor can be powered by a built-in power supply or by AC power. The specific power supply method should be selected according to the situation, and will not be elaborated here.

[0058] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A construction waste disposal and recycling device, characterized in that, include: A fixed frame (100), a jaw crusher (200) and a secondary crushing mechanism (300) are provided, wherein the jaw crusher (200) is installed on the top of the fixed frame (100) and the secondary crushing mechanism (300) is installed on the inner side of the fixed frame (100); The screening mechanism (400) includes a screening frame (410) installed on the top of the secondary crushing mechanism (300). A drive assembly (460) is provided on one side of the screening frame (410). The bottom end of the screening frame (410) is provided with a first opening (411) and two second openings (412). The two second openings (412) are located on both sides of the bottom end of the screening frame (410). A guide plate (420) is fixedly connected to the upper end of the inner wall of the screening frame (410). A movable frame (430) is slidably connected to the inner wall of the screening frame (410). Screen plates (440) are fixedly connected to both sides of the inner wall of the movable frame (430). The screen plates (440) are inclined and the lower end of the screen plates (440) is located above the first opening (411).

2. The construction waste disposal and recycling equipment according to claim 1, characterized in that, The screening mechanism (400) also includes two round rods (450) slidably connected to the inner wall of the screening frame (410). The two round rods (450) are respectively located above the top two sides of the moving frame (430). Four levers (451) are fixedly connected to the surface of the round rods (450). The levers (451) are located above the screen plate (440). The levers (451) are inclined, and the inclination angle of the levers (451) is the same as the inclination angle of the corresponding screen plate (440).

3. The construction waste disposal and recycling equipment according to claim 2, characterized in that, The drive assembly (460) includes a first motor (461) fixedly connected to one side of the screening frame (410). The output shaft of the first motor (461) is fixedly connected to a reciprocating screw (462). A slide rod (463) is mounted on the surface of the reciprocating screw (462). One end of each of the two round rods (450) is fixedly connected to one side of the slide rod (463).

4. The construction waste disposal and recycling equipment according to claim 1, characterized in that, The guide plate (420) has a roof-like shape, with its lower end positioned above the higher end of the sieve plate (440).

5. The construction waste disposal and recycling equipment according to claim 1, characterized in that, The top two sides of the guide plate (420) are fixedly connected with a plurality of evenly distributed partitions (421), and one side of the top of the partitions (421) is inclined.

6. The construction waste disposal and recycling equipment according to claim 1, characterized in that, An inclined plate (441) is fixedly connected to the lower end of the sieve plate (440), and the lower end of the inclined plate (441) is located above the second opening (412).

7. The construction waste disposal and recycling equipment according to claim 2, characterized in that, The inner wall of the screening frame (410) is fixedly connected with two limiting rods (413), and the inner wall of the round rod (450) is slidably connected to the surface of the limiting rods (413).

8. The construction waste disposal and recycling equipment according to claim 1, characterized in that, Both sides of the bottom end of the screening frame (410) are fixedly connected to the feeding frame (470), and the top end of the feeding frame (470) is connected to the second opening (412).

Images