Concrete recycling and gravel separating device for constructional engineering
By installing a vibrating motor and a filter inclined plate in the sand and gravel separation device to filter the concrete after the initial crushing, and then introducing it into the second crushing box for secondary crushing, the problem of incomplete crushing in the existing device is solved, and the sand and gravel separation effect is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-04-03
AI Technical Summary
Existing sand and gravel separation devices are not ideal for crushing concrete, resulting in unsatisfactory sand and gravel separation effects.
By setting up a vibrating motor and a first filter inclined plate to filter the concrete fragments after the initial crushing, the incompletely crushed concrete is introduced into the second crushing box for secondary crushing. Two crushing rollers are used to thoroughly crush the concrete to ensure the crushing effect and thus improve the separation effect of sand and gravel.
It improves the crushing effect of concrete, ensures the subsequent separation effect of sand and gravel, and achieves more efficient sand and gravel separation.
Smart Images

Figure CN224072082U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building engineering technology, specifically to a concrete recycling and sand-gravel separation device for building engineering. Background Technology
[0002] Concrete is a commonly used composite material in construction engineering. It is made by mixing cement, sand, gravel, and water in a certain proportion. During the production process, some waste concrete is generated. Once this waste concrete hardens, it will damage the environment and cause significant economic losses. Therefore, concrete recycling is necessary. Because concrete hardens relatively quickly, it needs to be crushed during the sand and gravel separation process for effective separation.
[0003] Existing sand and gravel separation devices are not ideal for crushing concrete, resulting in unsatisfactory subsequent sand and gravel separation. Therefore, we propose a concrete recycling sand and gravel separation device for construction engineering. Utility Model Content
[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.
[0005] In view of the problems existing in the above and / or existing sand and gravel separation devices, this utility model is proposed.
[0006] Therefore, the purpose of this utility model is to provide a concrete recycling and sand-gravel separation device for construction engineering. The device uses a vibrating motor and a first filter inclined plate to filter the concrete fragments after the initial crushing, and guides the incompletely crushed concrete into a second crushing box for further crushing, thereby ensuring the crushing effect of the device on the concrete and thus guaranteeing the subsequent sand-gravel separation effect.
[0007] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:
[0008] A concrete recycling and sand-gravel separation device for construction engineering, comprising:
[0009] The first crushing assembly includes a first crushing box with a hollow interior and two first crushing rollers disposed inside the first crushing box. A first feed pipe is disposed at the middle of the upper end of the first crushing box, and a first discharge pipe is disposed at the middle of the lower end of the first crushing box. The first crushing rollers are driven by a motor.
[0010] The second crushing assembly includes a second crushing box disposed at the lower end of the first crushing box and hollow inside, and two second crushing rollers disposed inside the second crushing box and symmetrically arranged. The upper middle part of the second crushing box is provided with second feed pipes on both sides, the lower middle part of the second crushing box is provided with second discharge pipes on both sides, a fixing plate is fixed to the lower outer side of the second crushing box, and a T-shaped plate is provided at the lower end of the fixing plate. The first discharge pipe extends through to the lower end of the second crushing box, and the second feed pipe is connected to the first discharge pipe.
[0011] The separation assembly includes a first filter inclined plate disposed on the upper side inside the first feed pipe and a second filter inclined plate disposed on the lower side inside the first feed pipe and disposed inside the second feed pipe. Both the first filter inclined plate and the second filter inclined plate are vibrated by a vibration motor. Both the side walls of the first feed pipe and the second feed pipe are provided with feed ports.
[0012] As a preferred embodiment of the concrete recycling sand and gravel separation device for construction engineering described in this utility model, a cover plate is provided at the upper end of the first feed pipe, and the cover plate is hinged to the first feed pipe by a hinge.
[0013] In a preferred embodiment of the concrete recycling and sand-gravel separation device for construction engineering described in this utility model, an elastic element is provided inside the fixed plate, the elastic element is fixed to the upper end of the T-shaped plate, and a damper is provided inside the elastic element.
[0014] In a preferred embodiment of the concrete recycling and sand-gravel separation device for construction engineering described in this utility model, the elastic element is a spring or an elastic sleeve.
[0015] In a preferred embodiment of the concrete recycling and sand-gravel separation device for construction engineering described in this utility model, the side walls of the first and second feeding pipes are fixed with guide plates at the lower end of the feeding port.
[0016] As a preferred embodiment of the concrete recycling sand and gravel separation device for construction engineering described in this utility model, the front end of the first crushing box and the second crushing box is provided with a slot, and an inspection door is provided in the slot by means of a hinge.
[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: This concrete recycling and sand-gravel separation device for construction engineering filters the concrete fragments after the initial crushing through a vibrating motor and a first filter inclined plate, and guides the incompletely crushed concrete into a second crushing box for further crushing, thereby ensuring the crushing effect of the device on the concrete and thus ensuring the subsequent separation effect of sand and gravel. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0019] Figure 1 This is a three-dimensional structural diagram of a concrete recycling and sand-gravel separation device for construction engineering.
[0020] Figure 2 This is a front view of the internal structure of a concrete recycling and sand-gravel separation device for construction engineering.
[0021] Figure 3 This utility model relates to a concrete recycling and sand-gravel separation device for construction engineering. Figure 2 A magnified view of the structure at point A in the middle;
[0022] In the diagram: 100, First crushing assembly; 110, First crushing box; 111, First feed pipe; 112, First discharge pipe; 113, Cover plate; 120, First crushing roller; 200, Second crushing assembly; 210, Second crushing box; 211, Second feed pipe; 212, Second discharge pipe; 213, Fixed plate; 214, T-shaped plate; 215, Elastic element; 216, Guide plate; 220, Second crushing roller; 300, Separation assembly; 310, First filter inclined plate; 320, Second filter inclined plate; 400, Inspection door. Detailed Implementation
[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0024] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.
[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0026] This utility model provides a concrete recycling and sand-gravel separation device for construction engineering. The device filters the concrete fragments after the initial crushing through a vibrating motor and a first filter inclined plate, and guides the incompletely crushed concrete into a second crushing box for further crushing, thereby ensuring the crushing effect of the device on the concrete and thus ensuring the subsequent separation effect of sand and gravel.
[0027] Figures 1-3 The diagram shown is a structural schematic of one embodiment of a concrete recycling and sand-gravel separation device for construction engineering. Please refer to [link / reference]. Figures 1-3 The concrete recycling and sand-gravel separation device for construction engineering according to this embodiment includes a first crushing component 100, a second crushing component 200 and a separation component 300.
[0028] The first crushing assembly 100 includes a hollow first crushing box 110 and two first crushing rollers 120 disposed inside the first crushing box 110. A first feed pipe 111 is disposed at the upper center of the first crushing box 110, and a first discharge pipe 112 is disposed at the lower center of the first crushing box 110. The first crushing rollers 120 are driven by a motor. Preferably, in this embodiment, a cover plate 113 is disposed at the upper end of the first feed pipe 111. The cover plate 113 is hinged to the first feed pipe 111. The cover plate 113 can seal the first feed pipe 111 and prevent the stone fragments from splashing during crushing.
[0029] The second crushing assembly 200 includes a second crushing box 210 disposed at the lower end of the first crushing box 110 and hollow inside, and two second crushing rollers 220 disposed inside the second crushing box 210 and symmetrically arranged. The upper middle part of the second crushing box 210 is provided with a second feed pipe 211 on both sides, and the lower middle part of the second crushing box 210 is provided with a second discharge pipe 212 on both sides. A fixing plate 213 is fixed to the lower outer side of the second crushing box 210, and a T-shaped plate 214 is provided at the lower end of the fixing plate 213. The first discharge pipe 112 extends through to the lower end of the second crushing box 210, and the second feed pipe 211 is connected to the first discharge pipe 112. Preferably, in this embodiment, an elastic element 215 is provided inside the fixed plate 213. The elastic element 215 is fixed to the upper end of the T-shaped plate 214. A damper is provided inside the elastic element 215. The elastic element 215 provided inside the fixed plate 213 can play a certain buffering role for the entire device, thereby enhancing the buffering performance of the device. A guide plate 216 is fixed to the lower end of the first discharge pipe 112 and the second discharge pipe 212 at the discharge port. The guide plate 216 fixed to the side wall of the first discharge pipe 112 and the second discharge pipe 212 can guide the separated sand and gravel to facilitate their collection later. The front end of the first crushing box 110 and the second crushing box 210 is provided with a slot. An inspection door 400 is provided in the slot by hinge. The inspection door 400 is provided on the first crushing box 110 and the second crushing box 210 by hinge so that the operator can open the inspection door 400 to inspect the inside of the crushing box later.
[0030] The separation assembly 300 includes a first filter inclined plate 310 disposed on the upper side inside the first feed pipe 112 and a second filter inclined plate 320 disposed on the lower side inside the first feed pipe 112 and disposed inside the second feed pipe 212. Both the first filter inclined plate 310 and the second filter inclined plate 320 are vibrated by a vibration motor. Both the side walls of the first feed pipe 112 and the second feed pipe 212 are provided with feed ports.
[0031] Combination Figures 1-3This embodiment of a concrete recycling and sand-gravel separation device for construction engineering is used as follows: The concrete to be recycled is put into the first crushing box 110 through the first feed pipe 111. Two first crushing rollers 120 driven by motors in the first crushing box 110 crush the concrete. The concrete fragments after the initial crushing are filtered by a vibrating motor and a first filter inclined plate 310. The incompletely crushed concrete is led into the second crushing box 210. Two second crushing rollers 220 driven by motors in the second crushing box 210 perform secondary crushing on the incompletely crushed concrete, thereby ensuring the crushing effect of the device on the concrete and thus ensuring the subsequent separation effect of sand and gravel. After crushing, it is discharged from the second discharge pipe 212. The vibrating motor and the second filter inclined plate 320 in the second discharge pipe 212 separate the sand and gravel.
[0032] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A concrete recycling aggregate separation apparatus for use in construction engineering, characterized by, The utility model relates to a kind of crushing device, including: First crushing assembly (100), including internally hollowly arranged first crushing box (110) and two first crushing rollers (120) arranged inside the first crushing box (110), the upper end middle part of the first crushing box (110) is provided with first feeding pipe (111), the lower end middle part of first crushing box (110) is provided with first discharge pipe (112), the first crushing roller (120) is driven by motor; Second crushing assembly (200), including second crushing box (210) arranged in the lower end of the first crushing box (110) and internally hollowly arranged and two second crushing rollers (220) symmetrically arranged inside the second crushing box (210), the upper end middle part of the second crushing box (210) is provided with second feeding pipe (211) on both sides, the lower end middle part of second crushing box (210) is provided with second discharge pipe (212) on both sides, the lower end of the fixed plate (213) is fixed with the fixed plate (213) outside the lower end of the second crushing box (210), the lower end of the fixed plate (213) is provided with T-shaped plate (214), the first discharge pipe (112) is penetrated to the lower end of the second crushing box (210), the second feeding pipe (211) is communicated with first discharge pipe (112); Separation assembly (300), including first filter inclined plate (310) arranged inside the upper side of the first discharge pipe (112) and second filter inclined plate (320) arranged inside the lower side of the first discharge pipe (112) and arranged inside the second discharge pipe (212), the first filter inclined plate (310) and second filter inclined plate (320) are vibrated by vibration motor, the side wall of first discharge pipe (112) and second discharge pipe (212) is provided with discharge port.
2. A concrete recycling aggregate separation apparatus for use in construction engineering according to claim 1, characterized in that, The upper end of the first feeding pipe (111) is provided with cover plate (113), and the cover plate (113) is hingedly arranged on the first feeding pipe (111).
3. A concrete recycling aggregate separation apparatus for use in construction engineering according to claim 1, characterized in that, The inside of the fixed plate (213) is provided with elastic member (215), and the elastic member (215) is fixed on the upper end of the T-shaped plate (214), and the inside of the elastic member (215) is provided with damper.
4. A concrete recycling aggregate separation apparatus for use in construction engineering according to claim 3, characterized in that, The elastic member (215) is spring or elastic sleeve.
5. A concrete recycling aggregate separation apparatus for use in construction engineering according to claim 1, characterized in that, The side wall of the first discharge pipe (112) and second discharge pipe (212) is fixed with guide plate (216) at the lower end of the discharge port.
6. A concrete recycling aggregate separation apparatus for use in construction engineering according to claim 1, characterized in that, The front end of the first crushing box (110) and the second crushing box (210) is provided with slot, and the slot is hingedly provided with access door (400).