Crushing device for construction waste recovery

Abstract

The utility model relates to the technical field of construction waste recovery, and particularly discloses a crushing device for construction waste recovery, which comprises a box body, and a crushing mechanism is arranged in the box body. The crushing mechanism comprises first crushing rollers, second crushing rollers and third crushing rollers, the first crushing rollers, the second crushing rollers and the third crushing rollers are rotationally connected between the left end and the right end in the box body from top to bottom in sequence, every two crushing rollers form a group, and the distances between the two first crushing rollers, the two second crushing rollers and the two third crushing rollers are sequentially decreased; two first baffles, four second baffles and two third baffles are fixedly connected between the left end and the right end in the box body, and the opposite sides of the two first baffles and the two third baffles abut against the outer walls of the two first crushing rollers and the outer walls of the two third baffles correspondingly. Through the arrangement of the multiple groups of crushing rollers, the crushing work can be dispersed to different stages and rollers, the situation that a single roller bears an overlarge load is avoided, step-by-step crushing is achieved, the crushing efficiency is improved, crushed stones and powder can be conveniently separated at the same time, and use is convenient.

Description

Technical Field

[0001] This utility model relates to the field of construction waste recycling technology, specifically a crushing device for construction waste recycling. Background Technology

[0002] Construction waste refers to the slag, waste soil, waste materials, excess mud, and other waste generated by construction units or individuals during the construction, laying, demolition, and repair of various buildings, structures, pipelines, etc. The vast majority of construction waste is transported to the suburbs or countryside by construction units without any treatment, and is dumped or buried in the open, consuming a large amount of construction funds such as land acquisition fees and garbage removal fees.

[0003] A crushing device for construction waste recycling, with Chinese patent number CN216322206U, includes a crushing box body. A feed hopper is fixedly installed in the middle of the upper outer surface of the crushing box body. Material return components are fixedly installed on both outer surfaces of the crushing box body. A vibration component is provided at the lower part of the material return component, and one end of the vibration component extends into the bottom of the inner cavity of the crushing box body. A support base is fixedly installed on the lower outer surface of the crushing box body. The vibration component includes a motor, a rotating shaft, an eccentric wheel, an impact base plate, a limiting block, a buffer spring, a fixed plate, a movable hole, a movable rod, and a rubber ball.

[0004] The aforementioned device has only two crushing gears with a constant spacing. This results in some larger pieces of stone causing excessive load on the two crushing gears during waste processing, leading to low overall crushing efficiency. Furthermore, it is inconvenient to separate the crushed stones from the powder at the same time. Separating the stones and powder separately requires additional costs, including manpower, equipment, and time, increasing the complexity of subsequent work. Therefore, it is necessary to propose a crushing device for construction waste recycling to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a crushing device for construction waste recycling. It features the ability to distribute the crushing work to different stages and rollers through the arrangement of multiple sets of crushing rollers, avoiding excessive load on a single roller, crushing in stages, improving crushing efficiency, and facilitating the separation of crushed stones and powder at the same time, making it convenient to use.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a crushing device for construction waste recycling, comprising a box body, wherein a crushing mechanism is provided inside the box body, the crushing mechanism comprising a first crushing roller, a second crushing roller, and a third crushing roller that are rotatably connected from top to bottom between the left and right ends of the box body and are arranged in pairs, and the distance between the two first crushing rollers, the two second crushing rollers, and the two third crushing rollers decreases sequentially; two first baffles, four second baffles, and two third baffles are fixedly connected between the left and right ends of the box body, the opposite sides of the two first baffles and the two third baffles respectively abut against the outer walls of the two first crushing rollers and the two third baffles; the four second baffles respectively abut against the space between the two first crushing rollers and the two second crushing rollers and between the two second crushing rollers and the two third crushing rollers.

[0007] A drive mechanism is provided at the right end of the housing;

[0008] The lower end of the box is provided with a material distribution mechanism, which includes two U-shaped supports that are symmetrically distributed front and back and fixedly connected to the lower end of the box. A conveyor belt is installed between the two U-shaped supports, and inclined guide plates are fixedly connected between the left and right ends inside the two U-shaped supports.

[0009] Preferably, the drive mechanism includes a plurality of symmetrically distributed rotating shafts that pass through and are rotatably connected to the right end face of the housing. The left ends of the plurality of rotating shafts are respectively fixedly connected to two first crushing rollers, two second crushing rollers, and two third crushing rollers. The outer walls of the plurality of rotating shafts are fixedly connected to sprockets. Chains mesh between the plurality of sprockets located on the same side. The right end of the housing is fixedly connected to two mounting brackets that are distributed front to back. Motors are mounted on the outer walls of the two mounting brackets. The output ends of the two motors pass through the mounting brackets and are fixedly connected to one of the sprockets.

[0010] Preferably, the lower end of the box is fixedly connected to a plurality of evenly distributed support rods whose lower ends abut against the upper end of the conveyor belt.

[0011] Preferably, the outer wall of the conveyor belt is provided with a plurality of evenly distributed mesh holes.

[0012] Preferably, the guide plate is located inside the conveyor belt.

[0013] Preferably, the upper and lower ends of the box are provided with inlet ports that abut against two first baffles and outlet ports that abut against two third baffles.

[0014] Preferably, a controller is installed at the front end of the housing.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention, through the rotation of a drive mechanism, two first crushing rollers, a second crushing roller, and a third crushing roller, and the cooperation of two first baffles, four second baffles, and two third baffles, causes larger pieces of stone to be trapped between the two first crushing rollers and crushed by them, while smaller pieces fall directly between the two second crushing rollers, and even smaller pieces fall into the interior of the second crushing rollers for further crushing. This step-by-step crushing process improves the overall crushing efficiency.

[0017] After crushing, the material falls directly from the discharge port to the top of the conveyor belt. The powder will fall through the mesh of the conveyor belt into the guide plate for discharge, while the crushed stone continues to be conveyed by the conveyor belt.

[0018] In summary, by setting up multiple sets of crushing rollers, the crushing work can be distributed to different stages and rollers, avoiding excessive load on a single roller, crushing in stages, improving crushing efficiency, and facilitating the separation of crushed stones and powder at the same time, making it convenient to use. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0020] Figure 1 This is an overall structural diagram of the present invention;

[0021] Figure 2 This is a left-side cross-sectional view of the present invention;

[0022] Figure 3 This is a rear view structural diagram of the present invention;

[0023] Figure 4 This is a left-side structural view of the present invention.

[0024] The markings in the diagram are: 1. Box body; 2. First crushing roller; 3. Second crushing roller; 4. Third crushing roller; 5. U-shaped bracket; 6. First baffle; 7. Second baffle; 8. Third baffle; 9. Conveyor belt; 10. Guide plate; 11. Mounting frame; 12. Motor; 13. Shaft; 14. Sprocket; 15. Chain; 16. Support rod. Detailed Implementation

[0025] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0026] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0027] Please see Figures 1 to 4 A crushing device for construction waste recycling includes a housing 1. A crushing mechanism is installed inside the housing 1. The crushing mechanism includes a first crushing roller 2, a second crushing roller 3, and a third crushing roller 4 that are rotatably connected from top to bottom between the left and right ends inside the housing 1 and are grouped in pairs. The distance between the two first crushing rollers 2, the two second crushing rollers 3, and the two third crushing rollers 4 decreases sequentially. Two first baffles 6, four second baffles 7, and two third baffles 8 are fixedly connected between the left and right ends inside the housing 1. The opposite sides of the two first baffles 6 and the two third baffles 8 respectively abut against the outer walls of the two first crushing rollers 2 and the two third baffles 8. The four second baffles 7 abut against the space between the two first crushing rollers 2 and the two second crushing rollers 3 and between the two second crushing rollers 3 and the two third crushing rollers 4, respectively.

[0028] A drive mechanism is provided at the right end of housing 1;

[0029] The lower end of the box 1 is provided with a material distribution mechanism, which includes two U-shaped supports 5 that are symmetrically distributed front and back and fixedly connected to the lower end of the box 1. A conveyor belt 9 is installed between the two U-shaped supports 5, and an inclined guide plate 10 is fixedly connected between the left and right ends inside the two U-shaped supports 5.

[0030] In this embodiment: During use, the two first crushing rollers 2, two second crushing rollers 3, and two third crushing rollers 4 are driven to rotate by the drive mechanism. The construction waste to be crushed is placed between the two first baffles 6. Larger pieces of stone will be stuck between the two first crushing rollers 2 and crushed by the two first crushing rollers 2, while smaller pieces will fall directly between the two second crushing rollers 3. Even smaller pieces will fall into the interior of the second crushing rollers 3 for crushing, thereby improving the overall crushing efficiency. The two first baffles 6 can easily introduce the crushed stone between the two first crushing rollers 2. The four second baffles 7 can easily introduce the crushed stone between the two second crushing rollers 3 and the two third crushing rollers 4. The two third baffles 8 can easily introduce the crushed stone into the discharge port.

[0031] After crushing, the material falls directly from the discharge port onto the upper end of the conveyor belt 9. The powder will fall through the mesh of the conveyor belt 9 into the guide plate 10 for discharge, while the crushed stone continues to be conveyed by the conveyor belt 9.

[0032] As a technical optimization of this utility model, the drive mechanism includes a plurality of symmetrically distributed rotating shafts 13 that pass through and are rotatably connected to the right end face of the housing 1. The left ends of the plurality of rotating shafts 13 are respectively fixedly connected to two first crushing rollers 2, two second crushing rollers 3 and two third crushing rollers 4. The outer walls of the plurality of rotating shafts 13 are all fixedly connected to sprockets 14. Chains 15 are meshed between the plurality of sprockets 14 located on the same side. The right end of the housing 1 is fixedly connected to two front-to-back distributed mounting brackets 11. Motors 12 are installed on the outer walls of the two mounting brackets 11. The output ends of the two motors 12 pass through the mounting brackets 11 and are fixedly connected to one of the sprockets 14.

[0033] In this embodiment: two motors 12 can drive the sprockets 14 connected to them to rotate. The rotation of the sprockets 14 can drive multiple sprockets 14 and shafts 13 that are meshed with the chain 15 to rotate simultaneously. When the shafts 13 rotate, they will drive the two first crushing rollers 2, the two second crushing rollers 3, and the two third crushing rollers 4 connected to them to rotate.

[0034] As a technical optimization of this utility model, the lower end of the box 1 is fixedly connected with a plurality of evenly distributed support rods 16, the lower end of which abuts against the upper end of the conveyor belt 9.

[0035] In this embodiment, the support rod 16 can be used to easily stir the crushed stone, making it easier for the powder to fall into the mesh of the conveyor belt 9.

[0036] As a technical optimization of this utility model, the outer wall of the conveyor belt 9 is provided with multiple evenly distributed mesh holes.

[0037] In this embodiment, the powder can easily fall onto the guide plate 10 through the mesh.

[0038] As a technical optimization of this utility model, the guide plate 10 is located inside the conveyor belt 9.

[0039] In this embodiment, the guide plate 10 can conveniently guide the powder.

[0040] As a technical optimization of this utility model, the upper and lower ends of the box 1 are provided with inlet ports that abut against two first baffles 6 and outlet ports that abut against two third baffles 8.

[0041] In this embodiment: the crushed stone can be easily introduced into the box 1 through the feed port, and the crushed stone can easily fall into the upper end of the conveyor belt 9 through the discharge port.

[0042] As a technical optimization of this utility model, a controller is installed at the front end of the housing 1.

[0043] In this embodiment: the controller is electrically connected to the two motors 12, and the controller can control the two motors 12 to rotate in opposite directions.

[0044] Working principle: When in use, the controller starts the two motors 12 to rotate in opposite directions, which can drive the sprockets 14 connected to them to rotate. The rotation of the sprockets 14 can drive multiple sprockets 14 and rotating shafts 13 that are meshed with the chain 15 to rotate simultaneously. When the rotating shaft 13 rotates, it will drive the two first crushing rollers 2, the two second crushing rollers 3, and the two third crushing rollers 4 connected to it to rotate relative to each other.

[0045] The construction waste to be crushed is placed between two first baffles 6. Larger pieces of stone will be stuck between the two first crushing rollers 2 and crushed by the two first crushing rollers 2, while smaller pieces will fall directly between the two second crushing rollers 3. Even smaller pieces will fall into the interior of the second crushing rollers 3 for crushing, thereby improving the overall crushing efficiency. The two first baffles 6 can easily guide the crushed stone between the two first crushing rollers 2. The four second baffles 7 can easily guide the crushed stone between the two second crushing rollers 3 and the two third crushing rollers 4. The two third baffles 8 can easily guide the crushed stone into the discharge port.

[0046] After crushing, the crushed material falls directly onto the upper end of the conveyor belt 9 through the discharge port. During the conveying process, the support rod 16 can easily agitate the crushed stone, making it easier for the powder to fall into the mesh of the conveyor belt 9. The powder will fall into the guide plate 10 through the mesh of the conveyor belt 9 and be discharged and collected in conjunction with the existing collection frame. Meanwhile, the crushed stone continues to be conveyed to the left by the conveyor belt 9 and is collected in conjunction with the existing collection frame.

[0047] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements 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 recycling, comprising a housing (1), characterized in that: The box (1) is equipped with a crushing mechanism. The crushing mechanism includes a first crushing roller (2), a second crushing roller (3), and a third crushing roller (4) that are rotatably connected from top to bottom between the left and right ends of the box (1) and are in pairs. The distance between the two first crushing rollers (2), the two second crushing rollers (3), and the two third crushing rollers (4) decreases in sequence. The left and right ends of the box (1) are fixedly connected with two first baffles (6), four second baffles (7), and two third baffles (8). The opposite sides of the two first baffles (6) and the two third baffles (8) respectively abut against the outer walls of the two first crushing rollers (2) and the two third baffles (8). The four second baffles (7) abut against the two first crushing rollers (2) and the two second crushing rollers (3) and the two second crushing rollers (3) and the two third crushing rollers (4) respectively. A drive mechanism is provided at the right end of the housing (1); The lower end of the box (1) is provided with a material distribution mechanism. The material distribution mechanism includes two U-shaped supports (5) that are symmetrically distributed front and back and fixedly connected to the lower end of the box (1). A conveyor belt (9) is installed between the two U-shaped supports (5). An inclined guide plate (10) is fixedly connected between the left and right ends inside the two U-shaped supports (5).

2. The crushing device for construction waste recycling according to claim 1, characterized in that: The drive mechanism includes multiple symmetrically distributed rotating shafts (13) that pass through and are rotatably connected to the right end face of the housing (1). The left ends of the multiple rotating shafts (13) are fixedly connected to two first crushing rollers (2), two second crushing rollers (3), and two third crushing rollers (4), respectively. The outer walls of the multiple rotating shafts (13) are all fixedly connected to sprockets (14). Chains (15) mesh between the multiple sprockets (14) located on the same side. The right end of the housing (1) is fixedly connected to two front-to-back distributed mounting brackets (11). Motors (12) are installed on the outer walls of the two mounting brackets (11). The output ends of the two motors (12) pass through the mounting brackets (11) and are fixedly connected to one of the sprockets (14).

3. The crushing device for construction waste recycling according to claim 1, characterized in that: The lower end of the box (1) is fixedly connected to a plurality of evenly distributed support rods (16) whose lower ends abut against the upper end of the conveyor belt (9).

4. The crushing device for construction waste recycling according to claim 1, characterized in that: The outer wall of the conveyor belt (9) is provided with multiple evenly distributed mesh holes.

5. The crushing device for construction waste recycling according to claim 1, characterized in that: The guide plate (10) is located inside the conveyor belt (9).

6. The crushing device for construction waste recycling according to claim 1, characterized in that: The upper and lower ends of the box (1) are provided with inlet ports that abut against two first baffles (6) and outlet ports that abut against two third baffles (8).

7. The crushing device for construction waste recycling according to claim 1, characterized in that: A controller is installed at the front end of the housing (1).

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