Waste concrete screening device

Abstract

The utility model relates to a waste concrete screening device which comprises a box body, a roller, a baffle plate and a knocking mechanism, the first end of the box body is a feeding port, the bottom of the box body is a discharging port, the baffle is spirally arranged on the inner wall of the roller, the knocking mechanism comprises a fixed hammer and a plurality of knocking assemblies, the fixed hammer is arranged on the box body, the knocking assemblies are arranged on the outer side wall of the roller, and each knocking assembly comprises a rotating shaft, a connecting rod, a torsional spring, a movable rod and a knocking hammer. The rotating shaft is arranged on the outer side wall of the roller, the first end of the connecting rod is hinged to the rotating shaft, the rotating shaft is sleeved with the torsional spring, one end of the torsional spring is connected with the rotating shaft, and the other end of the torsional spring is connected with the connecting rod. And the second end of the movable rod is correspondingly contacted with the fixed hammer. According to the waste concrete screening device, concrete particles clamped in the through holes can be conveniently vibrated off.

Description

Technical Field

[0001] The utility model relates to concrete screening, in particular to a waste concrete screening device. Background Art

[0002] When buildings are demolished, the resulting waste concrete typically contains concrete blocks of various sizes, as well as embedded steel bars, wood, and other impurities. To reuse this concrete, a series of processes are required, including crushing, screening, and magnetic separation. Therefore, screening waste concrete particles is a key step in concrete recycling. In the prior art, a drum screen is commonly used to screen concrete particles. The principle is to set through holes of different sizes so that concrete particles can pass through the holes for screening. However, during use, there is a problem of concrete particles getting stuck in the holes. Utility Model Content

[0003] The main purpose of the utility model is to provide a waste concrete screening device which is convenient for shaking off concrete particles stuck in through holes.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a waste concrete screening device, characterized by comprising: a box body, a roller, a baffle and a knocking mechanism;

[0005] The first end of the box is the feed port, and the bottom of the box is the discharge port.

[0006] The roller is rotatably arranged in the box, the first end of the roller is connected to the feed port, and multiple groups of through holes are arranged on the roller.

[0007] The baffle is spirally arranged on the inner wall of the drum.

[0008] The knocking mechanism includes a fixed hammer and a knocking assembly. The fixed hammer is arranged in the box. There are multiple knocking assemblies, and the multiple knocking assemblies are all arranged on the outer wall of the drum. The knocking assembly includes a rotating shaft, a connecting rod, a torsion spring, a movable rod and a knocking hammer. The rotating shaft is arranged on the outer wall of the drum. The first end of the connecting rod is hinged to the rotating shaft. The torsion spring is sleeved on the rotating shaft. One end of the torsion spring is connected to the rotating shaft, and the other end is connected to the connecting rod. The middle part of the movable rod is connected to the second end of the connecting rod. The first end of the movable rod is provided with a knocking hammer for knocking the drum, and the second end of the movable rod is arranged corresponding to the fixed hammer.

[0009] Furthermore, the drum is provided with multiple groups of through holes, which are arranged along the length of the drum, and the apertures of the multiple groups of through holes gradually increase along the moving direction of the concrete particles.

[0010] Furthermore, it also includes multiple discharge channels, which are all connected to the discharge port. The multiple discharge channels correspond one-to-one to the multiple groups of through holes, and the cross-section of the discharge channels is a gradually shrinking structure from top to bottom.

[0011] Furthermore, it also includes a plurality of partitions, which are all arranged on the box body.

[0012] Vertically, the partition is located between the drum and the discharge channel; horizontally, the partition is located between two adjacent discharge channels.

[0013] Furthermore, a plurality of observation windows are provided on the side wall of the box.

[0014] Furthermore, multiple knocking mechanisms are provided, and the multiple knocking mechanisms are arranged along the length of the drum.

[0015] The beneficial effects of the utility model are:

[0016] The utility model has a simple structure. The spiral arrangement of the baffle can increase the time that concrete particles stay in the drum, making the screening of concrete particles more thorough and avoiding omissions. The arrangement of the knocking mechanism can knock the drum during the screening process of concrete particles. When concrete particles are stuck in the through-holes, the knocking mechanism can shake the concrete particles off, thus avoiding blockage of the through-holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 It is a side view of the utility model;

[0020] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 A cross-sectional view of the drum.

[0022] Description of Reference Numerals

[0023] 1. Box body; 11. Observation window; 2. Drum; 3. Baffle; 4. Knocking mechanism; 41. Fixed hammer; 42. Knocking assembly; 421. Movable rod; 422. Connecting rod; 423. Knocking hammer; 424. Rotating shaft; 5. Discharging channel. DETAILED DESCRIPTION

[0024] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] like Figure 1-Figure 4 As shown, a waste concrete screening device includes a box body 1, a drum 2, a discharge channel 5, a partition, a baffle 3 and a knocking mechanism 4.

[0026] The first end of the box body 1 is a material feed port, the bottom of the box body 1 is a material discharge port, and a plurality of observation windows 11 are provided on the box body 1 .

[0027] The drum 2 is rotatably arranged in the box 1, and the first end of the drum 2 is connected to the feed port. The drum 2 is provided with multiple groups of through holes, which are arranged along the length of the drum 2, and the apertures of the multiple groups of through holes gradually increase along the direction of movement of the concrete particles, that is, Figure 4 The apertures of the multiple groups of through holes gradually increase from right to left. The apertures of each group of through holes are the same and are arranged in multiple rows and columns, which is convenient for screening out concrete particles of different particle sizes.

[0028] There are multiple discharge channels 5, each corresponding to a plurality of through-holes. Each discharge channel 5 is connected to a corresponding discharge port, and the cross-section of the discharge channels 5 is tapered from top to bottom. In other embodiments, the discharge channels 5 may be omitted and multiple receiving containers may be provided. The receiving containers are placed at the discharge port of the housing 1 to receive the screened concrete particles of different sizes.

[0029] There are multiple partitions, all of which are arranged on the box body 1. Vertically, the partitions are located between the drum 2 and the discharge channel 5. Laterally, the partitions are located between two adjacent discharge channels 5 to isolate the two adjacent discharge channels 5.

[0030] The baffle 3 is spirally arranged on the inner wall of the drum 2 .

[0031] The knocking mechanism 4 includes a fixed hammer 41 and a knocking assembly 42. The fixed hammer 41 is set on the box body 1 and is located above the drum 2. There are multiple knocking assemblies 42, and multiple knocking assemblies 42 are all set on the outer wall of the drum 2. The knocking assembly 42 includes a movable rod 421, a connecting rod 422, a knocking hammer 423, a rotating shaft 424 and a torsion spring. The rotating shaft 424 is set on the outer wall of the drum 2. The first end of the connecting rod 422 is hinged to the rotating shaft 424. The torsion spring is sleeved on the rotating shaft 424. One end of the torsion spring is connected to the rotating shaft 424, and the other end is connected to the connecting rod 422. The middle part of the movable rod 421 is connected to the second end of the connecting rod 422. The first end of the movable rod 421 is set with a knocking hammer 423 for knocking the drum 2, and the second end of the movable rod 421 is set corresponding to the fixed hammer 41. In actual use, multiple knocking mechanisms 4 can be set so that the multiple knocking mechanisms 4 are evenly arranged along the length of the drum 2.

[0032] When the utility model is used, concrete particles are conveyed to the feed port, the concrete particles advance along the baffle 3 in a spiral, and fall into the discharge channel 5 at the appropriate through hole and are discharged from the box body 1. At the same time, when the drum 2 rotates, as shown in FIG. Figure 2 As shown, the drum 2 rotates counterclockwise, the movable rod 421 gradually approaches the fixed hammer 41, and the fixed hammer 41 remains stationary, causing the movable rod 421 and the connecting rod 422 to rotate, and the knocking hammer 423 to move away from the drum 2 until the movable rod 421 is no longer in contact with the fixed hammer 41. The connecting rod 422 and the movable rod 421 are driven to rotate under the elastic force of the torsion spring, causing the knocking hammer 423 to knock on the drum 2, thereby knocking down the concrete particles stuck in the through hole to avoid clogging the through hole.

[0033] The above description is only a preferred embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

Claims

1. A waste concrete screening device, characterized in that: include: Box body (1), roller (2), baffle (3) and knocking mechanism (4); The first end of the box body (1) is the feed port, and the bottom of the box body (1) is the discharge port. The roller (2) is rotatably arranged in the box (1), the first end of the roller (2) is connected to the feed port, and a plurality of through holes are arranged on the roller (2). The baffle (3) is spirally arranged on the inner wall of the drum (2). The knocking mechanism (4) includes a fixed hammer (41) and a knocking assembly (42). The fixed hammer (41) is arranged in the box (1). There are multiple knocking assemblies (42), and the multiple knocking assemblies (42) are all arranged on the outer wall of the drum (2). The knocking assembly (42) includes a rotating shaft (424), a connecting rod (422), a torsion spring, a movable rod (421) and a knocking hammer (423). The rotating shaft (424) is arranged on the outer wall of the drum (2). The first end of the connecting rod (422) is hinged to the rotating shaft (424). The torsion spring is sleeved on the rotating shaft (424). One end of the torsion spring is connected to the rotating shaft (424), and the other end is connected to the connecting rod (422). The middle part of the movable rod (421) is connected to the second end of the connecting rod (422). The first end of the movable rod (421) is provided with a knocking hammer (423) for knocking the drum (2). The second end of the movable rod (421) is correspondingly arranged with the fixed hammer (41).

2. The waste concrete screening device according to claim 1, characterized in that: The drum (2) is provided with multiple groups of through holes, which are arranged along the length of the drum (2), and the apertures of the multiple groups of through holes gradually increase along the direction in which the concrete particles move.

3. The waste concrete screening device according to claim 1, characterized in that: It also includes a plurality of discharge channels (5), each of which is connected to the discharge port. The plurality of discharge channels (5) correspond one-to-one to the plurality of through holes, and the cross-section of the discharge channels (5) is a gradually shrinking structure from top to bottom.

4. The waste concrete screening device according to claim 3, characterized in that: It also includes a plurality of partitions, which are all arranged on the box body (1). Vertically, the partition is located between the roller (2) and the discharge channel (5); horizontally, the partition is located between two adjacent discharge channels (5).

5. The waste concrete screening device according to claim 1, characterized in that: A plurality of observation windows (11) are provided on the side wall of the box body (1).

6. The waste concrete screening device according to claim 1, characterized in that: A plurality of knocking mechanisms (4) are provided, and the plurality of knocking mechanisms (4) are arranged along the length of the drum (2).

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