A construction waste screening device

Abstract

The utility model discloses a construction waste screening device, including a bracket, a cylindrical screening drum and a first driving device for driving the screening drum to roll are arranged on the bracket, a material inlet is arranged at the left end of the screening drum, a plurality of layers of annular multiple screening cavities are arranged on the periphery of the screening drum, a plurality of screens are arranged circumferentially on the outer walls of the screening drum and the multiple screening cavity, a material outlet is arranged at the right end of the screening drum and the multiple screening cavity, and a plurality of material receiving boxes are arranged at the bottom of the bracket. The utility model can improve the screening rate by driving the screening drum to roll to continuously screen materials, and the screening drum is provided with multiple layers of multiple screening cavities on the periphery, which can perform multi-stage screening, thereby solving the problem of low screening rate of traditional step screens.

Description

Technical Field

[0001] The utility model relates to the technical field of construction waste recycling, in particular to a construction waste screening device. Background Art

[0002] The composition of decoration waste is complex, and it may be mixed with demolition waste and construction waste, making it difficult to sort, process and utilize. A few decoration waste are screened by step screens. The principle of the step screen is to arrange multiple screens in a stepped manner, with an overall slope. The decoration waste is poured into the top layer and slides down by gravity. During the sliding process, it is screened step by step through multiple layers of screens. In principle, the decoration waste can be screened out by size, but in actual use, when the decoration waste slides on the step screen, the small pieces of garbage on the upper layer are still difficult to screen out. Therefore, the current step screen has a low screening rate, and a screening device with a high screening rate is needed. Utility Model Content

[0003] The purpose of the utility model is to avoid the deficiencies of the prior art and provide a construction waste screening device, thereby effectively solving the deficiencies in the prior art.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a construction waste screening device, including a bracket, on which a cylindrical screening drum and a first driving device for driving the screening drum to roll are arranged, a material inlet is arranged at the left end of the screening drum, a plurality of layers of annular multiple screening cavities are arranged on the outer periphery of the screening drum, a plurality of screens are arranged circumferentially on the outer walls of the screening drum and the multiple screening cavity, a material outlet is arranged at the right end of the screening drum and the multiple screening cavity, and a plurality of material receiving boxes are arranged at the bottom of the bracket.

[0005] Furthermore, the bracket is provided with a first support ring and a second support ring to cooperate with the screening drum, and two rotating rings are provided on the screening drum to cooperate with the first support ring and the second support ring. The screening drum is rotatably arranged on the first support ring and the second support ring, and the first support ring is hingedly arranged on the bracket, and the bracket is provided with a second driving device to drive the second support ring to swing.

[0006] Furthermore, the first driving device is a servo motor arranged on the first supporting ring, a driving gear is arranged on the output shaft of the servo motor, an annular gear ring is arranged on the side wall of the screening drum, and the servo motor drives the screening drum to rotate through the cooperation of the driving gear and the gear ring.

[0007] Furthermore, a lower hopper is arranged on the outer side of the feed port, a support ring is arranged on the first support ring, and the lower hopper is fixed on the support ring.

[0008] Furthermore, the discharge ports of the screening cylinder and the multiple screening chamber extend outward in sequence from the outside to the inside, and the receiving box is arranged corresponding to the position of each discharge port.

[0009] Furthermore, a fine material box is arranged at the leftmost end of the material receiving box, and a guide plate for guiding into the fine material box is arranged on the second supporting ring.

[0010] Furthermore, the second driving device is an oil cylinder hingedly arranged on the bracket, and the front end of the oil cylinder is hingedly arranged on the second supporting ring.

[0011] Furthermore, a plurality of radial support rods are circumferentially arranged in the multiple screening chamber.

[0012] The above technical scheme of the utility model has the following beneficial effects: the utility model can improve the screening rate by driving the screening drum to roll to continuously screen materials, and a multi-layer complex screening cavity is arranged on the periphery of the screening drum to perform multi-stage screening, thus solving the problem of low screening rate of traditional step screens. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a side cross-sectional schematic diagram of an embodiment of the utility model;

[0014] Figure 2 It is a cross-sectional schematic diagram of the swing of the screening drum in the embodiment of the utility model;

[0015] Figure 3 It is a schematic diagram of a normal cross section of the screening drum according to an embodiment of the utility model. DETAILED DESCRIPTION

[0016] The following is a detailed description of the preferred implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0017] In the description of the present utility model, unless otherwise specified, "multiple" means two or more than two; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0018] like Figure 1-3 As shown, a construction waste screening device of the present embodiment comprises a support 1, on which a cylindrical screening drum 2 and a first driving device 3 for driving the screening drum 2 to roll are arranged, a material inlet 4 is arranged at the left end of the screening drum 2, and a plurality of layers of annular re-screening cavities 5 are arranged on the outer circumference of the screening drum 2, a plurality of screens 6 are arranged circumferentially on the outer walls of the screening drum 2 and the re-screening cavity 5, and the aperture of the screens 6 gradually decreases from the inside to the outside, a material outlet 7 is arranged at the right end of the screening drum 2 and the re-screening cavity 5, and a plurality of material receiving boxes 8 are arranged at the bottom of the support 1; after the construction waste is poured into the screening drum 2 from the material inlet 4, the first driving device 3 drives the screening drum 2 to roll, and the screening drum 2 screens the construction waste, and the waste with a small particle size will pass through the screen 6 and enter the re-screening cavity 5 for the next level of screening, and the waste with the smallest particle size will be screened out from the outermost screen 6, and the unscreened waste will be poured into the material receiving box 8 through the material outlet 7 of the screening drum 2 and the re-screening cavity 5;

[0019] Preferably, the bracket 1 is provided with a first support ring 9 and a second support ring 10 to cooperate with the screening drum 2, and two rotating rings 11 are provided on the screening drum 2 to cooperate with the first support ring 9 and the second support ring 10, the screening drum 2 is rotatably arranged on the first support ring 9 and the second support ring 10, the first support ring 9 is hingedly arranged on the bracket 1, and a second driving device 12 for driving the second support ring 10 to swing is arranged on the bracket 1, and the second driving device 12 drives the second support ring 10 to swing, which can drive the screening drum 2 to follow the swing, and the first support ring 9 supports the screening drum 2 to swing, and the inclination angle of the screening drum 2 and the complex screening chamber 5 can be adjusted, so as to facilitate the pouring out of the materials in the screening drum 2 and the complex screening chamber 5;

[0020] Preferably, the first driving device 3 is a servo motor arranged on the first supporting ring 9, a driving gear 13 is arranged on the output shaft of the servo motor, and an annular gear ring 14 is arranged on the side wall of the screening drum 2. The servo motor drives the screening drum 2 to rotate through the cooperation between the driving gear 13 and the gear ring 14;

[0021] Preferably, a lower hopper 15 is provided on the outside of the feed port 4, a support ring 16 is provided on the first support ring 9, and the lower hopper 15 is fixed on the support ring 16. When the screening drum 2 swings, the hopper can swing along with the first support ring 9, and the position of the lower hopper 15 and the screening drum 2 can be kept corresponding;

[0022] Preferably, the discharge ports 7 of the screening cylinder 2 and the multiple screening chamber 5 extend outward from the outside to the inside in sequence, and the receiving box 8 is arranged corresponding to the position of each discharge port 7, so that the material after each level of screening can be poured out at different positions, which is convenient for screening garbage of different particle sizes;

[0023] Preferably, a fine material box 17 is provided at the leftmost end of the receiving box 8, and a guide plate 18 is provided on the second support ring 10 to guide the fine material box 17. The garbage with the smallest particle size screened out by the outermost screen 6 will fall during the rolling process of the screening drum 2 and may fall directly into the fine material box 17. The guide plate 18 can guide the small particle size garbage falling from the right position of the screening drum 2 to fall into the fine material box 17, and avoid falling into the large particle size receiving box 8 on the right side.

[0024] Preferably, the second driving device 12 is a cylinder hingedly arranged on the bracket 1, and the front end of the cylinder is hingedly arranged on the second supporting ring 10;

[0025] Preferably, a plurality of radial support rods 19 are circumferentially arranged in the multiple screening chamber 5 , and the support rods 19 can support the outer wall of the multiple screening chamber 5 to avoid overall deformation.

[0026] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A construction waste screening device, characterized in that: It includes a bracket, on which a cylindrical screening drum and a first driving device for driving the screening drum to roll are arranged, a material inlet is arranged at the left end of the screening drum, a plurality of layers of annular multiple screening cavities are arranged at the outer periphery of the screening drum, a plurality of screens are arranged circumferentially on the outer walls of the screening drum and the multiple screening cavity, a material outlet is arranged at the right end of the screening drum and the multiple screening cavity, and a plurality of material receiving boxes are arranged at the bottom of the bracket.

2. A construction waste screening device according to claim 1, characterized in that: The bracket is provided with a first support ring and a second support ring to cooperate with the screening drum, and two rotating rings are provided on the screening drum to cooperate with the first support ring and the second support ring. The screening drum is rotatably arranged on the first support ring and the second support ring. The first support ring is hingedly arranged on the bracket, and the bracket is provided with a second driving device to drive the second support ring to swing.

3. A construction waste screening device according to claim 2, characterized in that: The first driving device is a servo motor arranged on the first supporting ring, a driving gear is arranged on the output shaft of the servo motor, an annular gear ring is arranged on the side wall of the screening drum, and the servo motor drives the screening drum to rotate through the cooperation of the driving gear and the gear ring.

4. A construction waste screening device according to claim 2, characterized in that: A lower hopper is arranged outside the feeding port, a support ring is arranged on the first support ring, and the lower hopper is fixed on the support ring.

5. A construction waste screening device according to claim 2, characterized in that: The discharge ports of the screening cylinder and the multiple screening chamber extend outward in sequence from the outside to the inside, and the receiving box is arranged corresponding to the position of each discharge port.

6. A construction waste screening device according to claim 5, characterized in that: A fine material box is arranged at the leftmost end of the material receiving box, and a guide plate for guiding into the fine material box is arranged on the second supporting ring.

7. A construction waste screening device according to claim 2, characterized in that: The second driving device is an oil cylinder hingedly arranged on the bracket, and the front end of the oil cylinder is hingedly arranged on the second supporting ring.

8. The construction waste screening device according to claim 1, characterized in that: A plurality of radial support rods are arranged in the multi-screen cavity along the circumferential direction.

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