Concrete crusher

By designing a combined structure of crushing rollers and electromagnetic suction plates, the problem of difficult removal of steel bars from concrete was solved, achieving efficient steel bar separation and concrete recycling, and reducing labor costs.

CN223517617UActive Publication Date: 2025-11-07GUANGDONG UNIV OF TECH
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Patent Information

Application Number
CN202422779405.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-14
Publication Date
2025-11-07
Estimated Expiration
2034-11-14

AI Technical Summary

Technical Problem

Existing technologies are insufficient for efficiently removing steel bars from concrete, resulting in a large workload for manual sorting in the later stages and increasing labor costs.

Method used

A concrete crusher was designed, which crushes concrete through a combination of crushing rollers and ring plates, and uses electromagnetic chucks to separate steel bars from the conveyor belt, reducing manual sorting.

Benefits of technology

This method effectively removes reinforcing steel bars from concrete, reducing the amount of manual sorting work, lowering labor costs, and enabling the recycling of concrete.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of construction waste treatment equipment, and particularly relates to a concrete crusher which comprises a rack, crushing equipment and a discharging sieve plate, the crushing equipment is arranged on the rack, the crushing equipment comprises a crushing shell, openings are formed in the top and the bottom of the crushing shell and used for feeding and discharging, and the discharging sieve plate is arranged on the rack. The discharging sieve plate and the rack are installed and correspond to the bottom of the crushing machine shell, the end, away from the crushing equipment, of the discharging sieve plate is downwards obliquely arranged, a first discharging opening is formed in the position, close to the crushing equipment, of the plate face of the discharging sieve plate, and a second discharging opening is formed in the position, away from the crushing equipment, of the plate face of the discharging sieve plate. A steel bar sorting assembly is correspondingly arranged below the first discharging opening, a circulating sieve plate is correspondingly arranged below the second discharging opening, and the opening diameter of the first discharging opening is smaller than that of the second discharging opening. According to the steel bar stripping device, steel bars in concrete can be stripped out, subsequent treatment procedures are facilitated, manual sorting can be effectively reduced, and the participation degree cost of manual labor is reduced.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of construction waste treatment equipment, and specifically relates to a concrete crusher. BACKGROUND

[0002] Construction waste refers to waste generated in the process of construction, demolition, decoration and the like, including concrete, mortar, bricks, tiles, steel and the like. For the treatment of concrete construction waste, a common way is to reuse it as a renewable resource. Specifically, construction waste concrete is uniformly collected and recycled, and then subjected to hammering and initial selection to obtain renewable concrete including renewable aggregate and renewable cement. In addition, a number of construction waste resource utilization plants are built in some areas, and potential of resource utilization plants with site space is tapped and expanded.

[0003] Problems in the prior art:

[0004] Generally speaking, there are mainly two methods for treating waste concrete, one of which is to reuse it as raw material after crushing, which requires classification and treatment according to the grade and characteristics of the concrete, and the other is to directly fill it into a construction waste landfill or use it for ditch filling and land creation. However, for concrete blocks with deep exposed reinforcement, the internal reinforcement needs to be removed by crushing the concrete. In the treatment of waste concrete, if the concrete surface has exposed reinforcement, it also needs to be processed after crushing. Based on the above, the present application provides a concrete treatment equipment capable of integrated processing, which can screen out part of the reinforcement after crushing the concrete, thereby reducing the degree of participation of manual screening in the later stage. Specifically, it is a concrete crusher. Utility model content

[0005] The utility model aims at providing a concrete crusher, which can strip the reinforcement in the concrete, facilitate subsequent processing procedures, and effectively reduce manual sorting and the degree of participation of manual labor.

[0006] The technical scheme adopted by the utility model is as follows:

[0007] A concrete crusher comprises a rack, a crushing device and a discharge screen plate, the crushing device is arranged on the rack, the crushing device comprises a crusher shell, and openings are formed in the top and bottom of the crusher shell for feeding and discharging;

[0008] The discharge screen plate is installed on the rack and corresponds to the bottom of the crusher shell, and the end of the discharge screen plate away from the crushing device is arranged downwardly inclined, a first discharge port is formed in the position of the plate surface of the discharge screen plate close to the crushing device, and a second discharge port is formed in the position of the plate surface of the discharge screen plate away from the crushing device;

[0009] A reinforcing steel sorting assembly is arranged below the first discharge port, and a circulating sieve plate is arranged below the second discharge port.

[0010] The first discharge port has a smaller opening diameter than the second discharge port.

[0011] The crusher shell is internally provided with two opposite crushing rollers, the opposite ends of the two crushing rollers are fixedly provided with transmission wheels, the transmission wheels are sleeved with a transmission belt, the other end of the transmission belt is provided with a transmission motor, the transmission motor is also provided with a corresponding transmission wheel, and the transmission belt is sleeved with the two transmission wheels, so that the transmission motor drives the crushing rollers to rotate through the transmission belt.

[0012] The crushing teeth are equidistantly arranged on the torus of the crushing roller, the interval between the two groups of crushing teeth forms a ring concave, and a ring plate is arranged at the position of the ring concave.

[0013] The ring plates on the two crushing rollers are arranged in a staggered manner.

[0014] The reinforcing steel sorting assembly comprises a sorting sieve plate, the sorting sieve plate is parallelly and obliquely arranged with the discharge sieve plate, the side panel close to the circulating sieve plate of the sorting sieve plate is extended to form a dust baffle, and a third discharge port is arranged at the position corresponding to the dust baffle of the sorting sieve plate.

[0015] Two rack plates are arranged on the two sides of the sorting sieve plate, two conveying rollers are arranged between the two rack plates, a placing platform is arranged between the two rack plates and in the two conveying rollers, a transmission belt is sleeved on the conveying roller, and the placing platform is arranged in the transmission belt.

[0016] An electromagnetic suction plate is arranged on the placing platform and used for adsorbing reinforcing steel in the material discharged from the first discharge port.

[0017] The length of the rack plate is longer than that of the sorting sieve plate.

[0018] The transmission belt is transmitted towards the crushing device.

[0019] The technical effects achieved by the utility model are as follows:

[0020] In the utility model, the crushing teeth equidistantly arranged on the torus of the crushing roller apply different pressures to different parts of the concrete block until the concrete block is broken and falls between the two crushing rollers, and the ring plate arranged on the crushing roller forms a small space between the two crushing rollers, so that the crushing pressure on the concrete is strengthened, the reinforcing steel in the concrete is stripped out, and the subsequent processing procedure is facilitated.

[0021] The present utility model discloses a concrete falls into the conveying belt, and the reinforcing steel bar that peels off is absorbed by the electromagnetic suction plate in the conveying belt, and transports along the conveying direction of the conveying belt, because the electromagnetic suction plate is only arranged on the upper portion of the placing platform, when the reinforcing steel bar is separated from the magnetic attraction range of the electromagnetic suction plate, the electromagnetic suction plate loses the attraction to the reinforcing steel bar, and the reinforcing steel bar is also discharged from the sorting sieve plate, realizing the function of sorting the reinforcing steel bar, further, the length of the frame plate is longer than the length of the sorting sieve plate, so that the end of the conveying belt also protrudes from the sorting sieve plate, and the broken concrete block falls from the conveying belt to the third discharge port under the gravity and is discharged, and the reinforcing steel bar is reversely conveyed from the conveying belt and is discharged from the sorting sieve plate, and the above structure effectively reduces manual sorting and reduces the participation degree cost of manual labor. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the whole front view structure schematic diagram of the present utility model;

[0023] Figure 2 It is the whole three-dimensional structure schematic diagram of the present utility model;

[0024] Figure 3 It is the transmission structure schematic diagram of the broken roller in the present utility model;

[0025] Figure 4 It is the overhead structure schematic diagram of the broken roller in the present utility model;

[0026] Figure 5 It is the structure schematic diagram of the reinforcing steel bar sorting assembly in the present utility model;

[0027] Figure 6 It is the split structure schematic diagram of the reinforcing steel bar sorting assembly in the present utility model.

[0028] In the drawings, the component list represented by each sign is as follows:

[0029] 1, rack;

[0030] 2, crushing equipment;201, crusher shell;202, broken roller;203, transmission wheel;204, transmission belt;205, transmission motor;206, broken convex tooth;207, ring concave;208, ring plate;

[0031] 3, discharge sieve plate;4, first discharge port;5, second discharge port;

[0032] 6, reinforcing steel bar sorting assembly;601, sorting sieve plate;602, dust baffle;603, third discharge port;604, frame plate;605, conveying roller;606, placing platform;607, conveying belt;608, electromagnetic suction plate;

[0033] 7, circulating sieve plate. DETAILED DESCRIPTION

[0034] In order to make the purpose and advantages of the utility model more clearly, the utility model is specifically described below in combination with examples.

[0035] As shown in Figures 1-6 A concrete crusher, comprising a rack 1, a crushing device 2 and a discharge screen plate 3, the crushing device 2 is arranged on the rack 1, and the crushing device 2 comprises a crusher shell 201, the top and the bottom of the crusher shell 201 are both provided with openings for feeding and discharging.

[0036] The discharge screen plate 3 is installed on the rack 1 and corresponds to the bottom of the crusher shell 201, and the end of the discharge screen plate 3 away from the crushing device 2 is arranged to be inclined downward, a first discharge port 4 is arranged on the plate surface of the discharge screen plate 3 close to the crushing device 2, and a second discharge port 5 is arranged away from the crushing device 2, the opening diameter of the first discharge port 4 is smaller than that of the second discharge port 5, wherein when the concrete to be crushed passes through the inside of the crusher shell 201 and is crushed, it rolls downward from the inclination of the discharge screen plate 3, and since the opening diameter of the first discharge port 4 is small, the small blocky concrete is discharged from the first discharge port 4, and the large blocky concrete is discharged from the second discharge port 5, the first discharge port 4 and the second discharge port 5 are arranged in cooperation to play a sorting role, reducing manual sorting and reducing the degree of labor participation cost.

[0037] A reinforcing sorting assembly 6 is arranged below the first discharge port 4, and a circulating screen plate 7 is arranged below the second discharge port 5, and the large blocky concrete blocks discharged from the second discharge port 5 are collected and gathered by the circulating screen plate 7 and then input into the inside of the crushing device 2 for new cycle crushing.

[0038] Referring to the accompanying Figure 3 and the accompanying Figure 4 , the inside of the crusher shell 201 is provided with two opposite crushing rollers 202, the opposite ends of the two crushing rollers 202 are fixedly provided with transmission wheels 203, the transmission wheels 203 are sleeved with a transmission belt 204, the other end of the transmission belt 204 is provided with a transmission motor 205, the transmission motor 205 is also provided with a corresponding transmission wheel 203, the transmission belt 204 is sleeved with the two transmission wheels 203, the ring surface of the crushing roller 202 is equidistantly provided with crushing convex teeth 206, the distance between the two groups of crushing convex teeth 206 forms a ring concave 207, the ring plate 208 is arranged at the position of the ring concave 207, and the ring plates 208 on the two crushing rollers 202 are arranged in a staggered manner.

[0039] According to the above structure, the concrete waste is put into the inside of the crusher shell 201, the transmission motor 205 drives the crushing roller 202 to rotate through the transmission belt 204, and the concrete is broken through the relative extrusion of the two crushing rollers 202, so as to achieve the crushing effect. At the same time, the crushing teeth 206 arranged equidistantly on the torus of the crushing roller 202 apply pressure to different parts of the concrete block, until the concrete block is broken and falls between the two crushing rollers 202, and the ring plate 208 arranged on the crushing roller 202 forms a small space between the two crushing rollers 202 through the ring plate 208, thereby strengthening the crushing pressure on the concrete and stripping the steel bars in the concrete.

[0040] Referring to the drawings Figure 1 and the drawings Figure 5 The steel bar sorting assembly 6 includes a sorting sieve plate 601, which is parallel and inclined to the discharge sieve plate 3. The sorting sieve plate 601 is extended to form a dust baffle 602 with the side panel close to the circulating sieve plate 7, and a third discharge port 603 is formed on the sorting sieve plate 601 corresponding to the position of the dust baffle 602.

[0041] Further, the top extension design of the dust baffle 602 can prevent the leakage in the second discharge port 5 from falling into the inside of the sorting sieve plate 601, and on the other hand, it can also block the flying dust of the discharged material in the first discharge port 4, preventing the stone from flying.

[0042] Further, the concrete discharged from the first discharge port 4 enters the sorting sieve plate 601, and because the sorting sieve plate 601 is parallel and inclined to the discharge sieve plate 3, the concrete is deposited at the bottom of the sorting sieve plate 601 and discharged from the third discharge port 603.

[0043] Referring to the drawings Figure 5 and the drawings Figure 6 Two frame plates 604 are installed on the two sides of the sorting sieve plate 601, two conveying rollers 605 are arranged between the two frame plates 604, a placement platform 606 is arranged between the two frame plates 604 and inside the two conveying rollers 605, a transmission belt 607 is sleeved on the conveying roller 605, the placement platform 606 is located inside the transmission belt 607, and an electromagnetic suction plate 608 is arranged on the placement platform 606 and used for absorbing the steel bars in the material discharged from the first discharge port 4.

[0044] Among them, it is worth noting that the first discharge port 4 is opposite to the transmission belt 607, and the electromagnetic suction plate 608 is a common structure using electromagnetic absorption in the prior art.

[0045] Referring to the drawings Figure 1 and the drawings Figure 6 The length of the frame plate 604 is longer than the length of the sorting sieve plate 601, and the transmission belt 607 is transmitted towards the crushing device 2.

[0046] In combination with the above structure, after the concrete falls on the conveying belt 607, the stripped steel bars are attracted by the electromagnetic attracting plate 608 inside the conveying belt 607 and are transported along the conveying direction of the conveying belt 607. Since the electromagnetic attracting plate 608 is only arranged at the upper part of the placing platform 606, when the steel bar is out of the magnetic attraction range of the electromagnetic attracting plate 608, the electromagnetic attracting plate 608 loses the attraction to the steel bar, and the steel bar is discharged from the sorting sieve plate 601, thereby achieving the function of sorting the steel bar. Further, the length of the frame plate 604 is longer than the length of the sorting sieve plate 601, so that the end part of the conveying belt 607 also protrudes from the sorting sieve plate 601. The broken concrete blocks fall from the conveying belt 607 to the third discharge port 603 under the action of gravity, and the steel bars are reversely conveyed from the conveying belt 607, discharged from the sorting sieve plate 601, and then collected and processed.

[0047] The working principle of the utility model is as follows: the concrete to be processed is discharged from the top of the crusher shell 201, the transmission motor 205 is started, and the crushing roller 202 is driven to rotate through the transmission belt 204. The concrete is broken by the relative extrusion of the two crushing rollers 202, the steel bars in the broken concrete are stripped, and the concrete falls between the two crushing rollers 202 and falls onto the discharge sieve plate 3. Since the first discharge port 4 and the second discharge port 5 have different diameters, different sizes of concrete are discharged into the corresponding steel bar sorting assembly 6 and the circulating sieve plate 7. The concrete inside the steel bar sorting assembly 6 is separated from the steel bars by the electromagnetic attracting plate 608, which is convenient for subsequent collection and processing, reduces manual sorting, reduces the labor cost, and the continuous processing of the above structure can reduce the discharge of solid waste and pollution to the environment. In addition, the solid waste generated after the concrete test can be fully utilized, and the recycling of concrete is realized.

[0048] The above description is only the preferred embodiment of the utility model, and it should be pointed out that, for ordinary skilled persons in the technical field, without departing from the principle of the utility model, some improvements and refinements can be made, which should also be regarded as the protection range of the utility model. The structures, devices and operation methods not specifically described and explained in the utility model are implemented according to the conventional means in the field without special description and limitation.

Claims

1. A concrete breaker, characterized in that, Include: Frame (1); Crushing device (2), the crushing device (2) is arranged on the frame (1), the crushing device (2) includes a crusher shell (201), the top and bottom of the crusher shell (201) are provided with openings for feeding and discharging; Discharge screen (3), the discharge screen (3) is installed with the frame (1) and corresponds to the bottom of the crusher shell (201), and the end of the discharge screen (3) away from the crushing device (2) is inclined downward, the first discharge port (4) is arranged on the plate surface of the discharge screen (3) close to the crushing device (2), and the second discharge port (5) is arranged away from the crushing device (2); The first discharge port (4) is correspondingly provided with a reinforcing bar sorting assembly (6) below, and the second discharge port (5) is correspondingly provided with a circulating screen (7) below.

2. A concrete breaker according to claim 1, characterized in that: The opening diameter of the first discharge port (4) is smaller than that of the second discharge port (5).

3. A concrete breaker as claimed in claim 1, wherein: The inside of the crusher shell (201) is provided with two opposite crushing rollers (202), the opposite ends of the two crushing rollers (202) are fixed with transmission wheels (203), the transmission wheels (203) are sleeved with transmission belts (204), the other end of the transmission belt (204) is provided with a transmission motor (205), the transmission motor (205) is also provided with a corresponding transmission wheel (203), and the transmission belt (204) is sleeved with the two transmission wheels (203), so that the transmission motor (205) drives the crushing roller (202) to rotate through the transmission belt (204).

4. A concrete breaker according to claim 3, characterized in that: The crushing teeth (206) are equidistantly arranged on the torus of the crushing roller (202), the distance between the two groups of crushing teeth (206) forms a ring recess (207), and the ring plate (208) is arranged at the position of the ring recess (207).

5. A concrete breaker according to claim 4, characterized in that: The ring plates (208) on the two crushing rollers (202) are arranged in a staggered manner.

6. A concrete breaker as claimed in claim 1, wherein: The reinforcing bar sorting assembly (6) includes a sorting screen (601), the sorting screen (601) is inclined parallel to the discharge screen (3), the sorting screen (601) is extended to form a dust baffle (602) on the side panel close to the circulating screen (7), and the third discharge port (603) is arranged on the position corresponding to the dust baffle (602) of the sorting screen (601).

7. A concrete breaker according to claim 6, characterized in that: Frame plates (604) are installed on both sides of the sorting screen (601), two conveying rollers (605) are arranged between the two frame plates (604), a placing platform (606) is arranged between the two frame plates (604) and in the two conveying rollers (605), a conveying belt (607) is sleeved on the conveying roller (605), and the placing platform (606) is located in the conveying belt (607).

8. A concrete breaker according to claim 7, characterized in that: The placing platform (606) is provided with an electromagnetic suction plate (608) for absorbing the reinforcing bars in the material discharged from the first discharge port (4).

9. A concrete breaker according to claim 7, characterized in that: The length of the frame plate (604) is longer than that of the sorting screen (601).

10. A concrete breaker according to claim 7, characterized in that: The conveying belt (607) is transmitted towards the crushing device (2).