Crushing device for cleaning construction waste

Abstract

The utility model discloses a crushing device for cleaning construction waste, relates to the field of construction, and aims to solve the problem that metal materials in the waste have potential safety hazards to crushing equipment and surrounding operators when the construction waste is crushed, the crushing device comprises a fixing frame, a material box is fixedly connected to the fixing frame, a first discharging opening is formed in the side edge of the material box, and a second discharging opening is formed in the side edge of the material box. Leakage-proof plates are fixedly connected to the two sides of the first discharging opening, a conveying belt is arranged on the inner sides of the two leakage-proof plates, one end of the conveying belt is located below the first discharging opening, a magnetic attraction assembly is arranged above the first discharging opening and the conveying belt, and a stone crushing box is arranged at the other end of the conveying belt; two stone crushing rollers which rotate relatively are rotationally connected into the stone crushing box, and a second discharging opening is formed in the position, below the stone crushing rollers, of the stone crushing box, and the metal impurity screening device has the beneficial effects that metal impurities in construction waste are screened before waste crushing, and the safety of crushing equipment and operators is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of construction technology, and in particular to a crushing device for cleaning construction waste. Background Technology

[0002] With the acceleration of urbanization and the continuous advancement of infrastructure construction, the construction industry is booming, resulting in a surge in construction waste. Construction waste mainly includes discarded concrete blocks, bricks, stone chips, wood, plastics, and metal materials. If this construction waste is not treated in a timely and effective manner, it will not only occupy a large amount of land resources but may also pollute the soil, water sources, and air, affecting the ecological environment and the quality of life of residents.

[0003] Currently, crushing recyclable components such as stone chips from construction waste is a crucial step in resource utilization. Existing construction waste crushing technology mainly relies on traditional stone crushers. In the crushing process, the collected construction waste is typically fed directly into the crusher for grinding. However, this simple method has revealed numerous problems in practical applications, especially when dealing with the complex composition of construction waste.

[0004] In addition to stone chips and other major crushing materials, construction waste often contains nails, steel bars, and other iron blocks. The presence of these iron blocks has a serious negative impact on the normal operation of the crusher. Firstly, the high hardness of iron blocks means that when they enter the crusher and come into contact with the blades, they cause severe impact and wear. Because the hardness of iron blocks is much higher than that of ordinary stone chips, the blades need to withstand greater forces during crushing, which can easily lead to chipping, rolling, or even breakage of the blades. This significantly shortens the lifespan of the blades, increases equipment maintenance costs and downtime, and reduces the efficiency of the crushing operation.

[0005] On the other hand, during the high-speed collision and compression with the blades, the iron block may deform due to the enormous force, generating a powerful reaction force. This reaction force could cause the iron block to fly out of the crusher. Because the blades rotate at high speed during operation, the flying iron block travels at extremely high speeds and in unpredictable directions. If it hits nearby operators, it will cause serious personal injury and pose a significant threat to their lives. Furthermore, the flying iron block may also damage surrounding equipment and buildings, further increasing safety hazards and economic losses. Utility Model Content

[0006] In view of the above situation and to overcome the defects of the prior art, this utility model provides a crushing device for construction waste cleaning. This design effectively solves the problem that the metal materials in the construction waste pose a safety hazard to the crushing equipment and surrounding operators during the crushing process.

[0007] To achieve the above objectives, the present invention provides the following technical solution: The present invention includes a fixed frame, on which a material box is fixedly connected. A first discharge port is provided on the side of the material box. Leak-proof plates are fixedly connected to both sides of the first discharge port. A conveyor belt is provided inside the two sets of leak-proof plates. One end of the conveyor belt is located below the first discharge port. A magnetic suction assembly is provided above the first discharge port and the conveyor belt. A crushed stone box is provided at the other end of the conveyor belt. Two relatively rotating crushed stone rollers are rotatably connected inside the crushed stone box. A second discharge port is opened in the crushed stone box below the crushed stone rollers.

[0008] The magnetic attraction assembly includes a support rod, which is fixedly connected to the material box. Both ends of the support rod are hinged to connecting rods, which are located outside the material box. The other ends of the two connecting rods are fixedly connected to connecting rods, and strong magnetic rings are fixedly connected to the connecting rods.

[0009] Preferably, a buffer block is fixedly connected to the connecting rod, and the diameter of the buffer block is larger than the diameter of the strong magnetic ring.

[0010] Preferably, multiple sets of obliquely placed ribs are fixedly connected inside the material box, and the multiple sets of ribs are placed at equal intervals. A rotating shaft is rotatably connected inside the material box, and the rotating shaft is located below the ribs. A lever is fixedly connected to the rotating shaft, and the lever is located at the gap between the ribs.

[0011] Preferably, the conveyor belt is placed at an upward inclination, and a baffle is fixedly connected to the conveyor belt.

[0012] Preferably, a feeding hopper is fixedly connected to the lower part of the material box and the leak-proof plate, and a third feeding port is provided below the feeding hopper. The third feeding port and the second feeding port are located at the same horizontal height.

[0013] Preferably, a first pulley set is installed between the conveyor belt and the crushing roller, and a second pulley set is installed between the conveyor belt and the rotating shaft.

[0014] The outstanding advantages of this utility model compared with the prior art are:

[0015] This invention adds a material bin and conveyor belt before the construction waste enters the crushing box, which transports the construction waste into the crushing box in batches, avoiding excessive material feeding at one time and causing the crushing box to be overloaded. In addition, a magnetic suction component is added at the junction of the material bin and the conveyor belt to sort out iron blocks mixed in with the construction waste, preventing iron blocks from entering the crushing box and ensuring the safety of the crushing roller and surrounding personnel. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall axonometric structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the forward structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the bottom structure of the material feeding block of this utility model.

[0019] Figure 4 This is a schematic diagram of the material box connection structure of this utility model.

[0020] Figure 5 This is a schematic diagram of the rotating shaft connection structure of this utility model.

[0021] Figure 6 This is a schematic diagram of the magnetic suction component structure of this utility model.

[0022] Figure 7 This is a schematic diagram of the connection structure of the stone crushing roller of this utility model.

[0023] The following are the labels in the diagram: 1. Fixed frame; 2. Material box; 3. First discharge port; 4. Leak-proof plate; 5. Conveyor belt; 6. Magnetic suction assembly; 601. Support rod; 602. Connecting rod; 603. Connecting rod; 604. Strong magnetic ring; 605. Buffer block; 7. Crushed stone box; 8. Crushed stone roller; 9. Second discharge port; 10. Rib; 11. Rotating shaft; 12. Actuating rod; 13. Baffle; 14. Discharge hopper; 15. Third discharge port; 16. First pulley group; 17. Second pulley group. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see the appendix Figure 1-7This embodiment discloses a crushing device for construction waste cleaning: it includes a fixed frame 1, a material box 2 fixedly connected to the fixed frame 1, a first discharge port 3 on the side of the material box 2, anti-leakage plates 4 fixedly connected to both sides of the first discharge port 3, a conveyor belt 5 inside the two sets of anti-leakage plates 4, one end of the conveyor belt 5 located below the first discharge port 3, a magnetic suction assembly 6 above the first discharge port 3 and the conveyor belt 5, a crushed stone box 7 at the other end of the conveyor belt 5, two relatively rotating crushing rollers 8 rotatably connected inside the crushed stone box 7, and a second discharge port 9 opened in the crushed stone box 7 below the crushing rollers 8.

[0026] The fixed frame 1 is a frame welded from channel steel. The middle part of the fixed frame 1 is hollow. The material box 2 is welded to the left side of the fixed frame 1, and the crushed stone box 7 is welded to the right side of the fixed frame 1. The upper part of the material box 2 is lower than the height of the crushed stone box 7. The lower height of the material box 2 facilitates the feeding of construction waste into the material box 2. The right side of the material box 2 has a first discharge port 3. The two anti-leakage plates 4 are symmetrically installed on both sides of the first discharge port 3. The two anti-leakage plates 4 are located on the front and rear sides of the conveyor belt 5, and the upper top surface of the conveyor belt 5 is lower than the upper top surface of the anti-leakage plates 4. This can prevent the conveyor belt 5 from overflowing. The waste falls outward from both the front and rear sides. The other side of the conveyor belt 5 is located above the crushed stone box 7. Under the action of the conveyor belt 5, the construction waste enters the crushed stone box 7 from the material box 2. There are two relatively rotating crushing rollers 8 in the crushed stone box 7. The two crushing rollers 8 crush the construction waste. A magnetic suction component 6 is installed at the junction of the material box 2 and the conveyor belt 5. The magnetic suction component 6 is located above the conveyor belt 5. When metal impurities pass under the magnetic suction component 6, the magnetic force will attract the metal impurities out, which is used to separate the metal impurities in the construction waste.

[0027] The magnetic attraction component 6 includes a support rod 601, which is fixedly connected to the material box 2. Both ends of the support rod 601 are hinged to connecting rods 602, which are located outside the material box 2. The other ends of the two connecting rods 602 are fixedly connected to connecting rods 603, and strong magnetic rings 604 are fixedly connected to connecting rods 603.

[0028] The magnetic attraction component 6 includes a support rod 601, which is horizontally welded to the top of the material box 2. Both ends of the support rod 601 are connected by hinged connecting rods 602, which extend outwards to the outside of the material box 2. The two ends of a connecting rod 603 are connected to the two connecting rods 602. The length of the connecting rod 603 is greater than the width of the first discharge port and also greater than the distance between the two baffles. This prevents the strong magnetic ring 604 on the connecting rod 603 from being attracted to the conveyor belt 5 or the material box 2. The strong magnetic ring 604 is made of neodymium iron boron with a magnetic induction intensity ≥1.2T. A buffer block 605 is added at the position where the connecting rod 603 meets the side of the material box 2. The buffer block 605 has a larger diameter than the strong magnetic ring 604 and is made of polyurethane elastomer to absorb the impact of material collisions. Figure 1 and Figure 6 As shown, when the garbage block on the conveyor belt 5 is large, the garbage block will push the strong magnetic ring 604 and the connecting rod 602 to rotate upward, making enough space for the garbage block to move. After the garbage block moves past, the connecting rod 602 rotates downward under the action of gravity. In order to reduce the collision between the connecting rod 603 and the material box 2, the buffer block 605 contacts the material box 2 to avoid the rod body of the connecting rod 603 from being damaged by collision.

[0029] Multiple sets of inclined ribs 10 at 30° are welded inside the material box 2. The ribs 10 are spaced 250mm apart. The spaced ribs 10 are used to disperse the material and screen the garbage, separating out small-volume garbage or metal impurities. A rotating shaft 11 is installed below the ribs 10. A lever 12 is evenly distributed on the rotating shaft 11. The lever 12 extends into the gap between the ribs 10. The lever 12 pushes the material in the material box 2 to prevent garbage from accumulating in the material box 2. The rotating shaft 11 is driven by the second pulley group 17 and rotates synchronously with the conveyor belt 5.

[0030] The conveyor belt 5 is installed at an angle of 15°. The fixed height of the surface baffle 13 is 50mm, and the spacing between the baffles 13 is 300mm. The end of the conveyor belt 5 is connected to the first pulley group 16. The other end of the first pulley group 16 is connected to the drive shaft of the drive motor. The drive shaft is also connected to the crushing roller 8. The crushing roller 8, the conveyor belt 5 and the rotating shaft 11 are driven to rotate synchronously by a motor. The first pulley group 16 and the second pulley group 17 are both composed of two pulleys and a connecting belt. They have the same function as the existing pulley assembly, which is used for torque transmission.

[0031] The bottom of the material box 2 and the anti-leakage plate 4 are welded with the feeding hopper 14. The bottom of the feeding hopper 14 is opened with a third feeding port 15. The third feeding port 15 and the second feeding port 9 of the crushed stone box 7 are located on the same horizontal plane. The lower part is connected to a unified conveying channel so that non-metallic aggregates and crushed stone are output synchronously.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A crushing device for construction waste cleaning, characterized by: The utility model relates to a kind of fixed frame (1), the fixed frame (1) is fixedly connected with material box (2), the material box (2) side is equipped with first discharge port (3), the both sides of first discharge port (3) are fixedly connected with leakage-proof plate (4), two groups of leakage-proof plate (4) inside is equipped with conveying belt (5), conveying belt (5) one end is below first discharge port (3), the above of first discharge port (3) and conveying belt (5) is equipped with magnetic attraction component (6), the other end of conveying belt (5) is equipped with gravel box (7), two opposite rotating gravel rollers (8) are rotatably connected in gravel box (7) below gravel roller (8), second discharge port (9) is opened in gravel box (7) below gravel roller (8); The magnetic attraction component (6) includes a support rod (601), the support rod (601) is fixedly connected with the material box (2), the both ends of the support rod (601) are hingedly connected with connecting rods (602), the connecting rods (602) are located outside the material box (2), the other ends of the two connecting rods (602) are fixedly connected with a connecting rod (603), the connecting rod (603) is fixedly connected with a strong magnetic ring (604).

2. The crushing device for construction waste cleaning according to claim 1, characterized in that: The connecting rod (603) is fixedly connected with a buffer block (605), the diameter of the buffer block (605) is greater than the diameter of the strong magnetic ring (604).

3. The crushing device for construction waste cleaning according to claim 1, characterized in that: The material box (2) is fixedly connected with a plurality of inclined ribs (10) inside, a plurality of the ribs (10) are placed at equal intervals, the material box (2) is rotatably connected with a rotating shaft (11) inside, the rotating shaft (11) is located below the ribs (10), the rotating shaft (11) is fixedly connected with a lever (12), the lever (12) is located at the gap of the ribs (10).

4. The crushing device for construction waste cleaning according to claim 1, characterized in that: The conveying belt (5) is placed upwardly inclined, the conveying belt (5) is fixedly connected with a baffle (13).

5. The crushing device for construction waste cleaning according to claim 3, characterized in that: The material box (2) and the leakage-proof plate (4) are fixedly connected with a discharge hopper (14) below, the discharge hopper (14) is equipped with a third discharge port (15) below, the third discharge port (15) and the second discharge port (9) are located at the same horizontal height.

6. The crushing device for construction waste cleaning according to claim 3, characterized in that: The conveying belt (5) and the gravel roller (8) are installed with a first pulley set (16) between, the conveying belt (5) and the rotating shaft (11) are installed with a second pulley set (17) between.

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