Horizontal multi-stage screening machine for construction waste treatment

Abstract

The utility model discloses a horizontal multi-stage screening machine for construction waste treatment. The horizontal multi-stage screening machine comprises a base, a supporting column, a rotating gear, a first rotating shaft, a first motor, a screen, a supporting plate, a second rotating shaft, a second motor, a mounting plate, a stirring rake, a discharging hopper, a material collecting box and a material returning box. Multi-stage screening is achieved by arranging a fine screen, a medium screen and a coarse screen. The stirring rake is arranged, and when the construction waste is screened by the rotating screen, the construction waste at the bottom of the screen is stirred and dispersed, so that the construction waste is prevented from depositing or blocking the bottom of the screen; and vibration displacement of the horizontal multi-stage screening machine is reduced by arranging the foot pads and the non-slip mats, so that the horizontal multi-stage screening machine operates more stably. The problem that the screen is difficult to clean in time is solved, and the purpose of multi-stage screening is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of construction waste treatment, in particular to a horizontal multi-stage vibrating screen for construction waste treatment. Background Technique

[0002] Construction waste refers to the general term for muck, waste concrete, waste bricks and stones and other solid wastes generated in the production activities of the construction industry such as demolition, construction, decoration, and repair; if these wastes are not treated and utilized in time, they will surely have an adverse impact on society, the environment and resources; at the same time, because they have a certain recycling value, construction waste is usually recycled and reused, and a sorting device is a device for sorting construction waste during the process of recycling construction waste. A screening machine is a screening mechanical equipment that uses the relative movement of bulk materials and the screen surface to make some particles pass through the screen holes and divides the materials into different grades according to the particle size.

[0003] For example, the Chinese patent with the publication number CN220258704U discloses a vibrating screen for a construction waste treatment process, including a mounting frame, a feeding mechanism, a screening mechanism and a rotating mechanism; the feeding mechanism is arranged at the bottom end of the mounting frame; the screening mechanism is arranged at the top end of the mounting frame; the rotating mechanism is installed at the top end of the feeding mechanism. Through the setting of the first screening net, the second screening net, the third screening net and the feeding mechanism, when screening construction waste, different-sized classification screening operations can be carried out on the construction waste through the setting of the first screening net, the second screening net and the third screening net, thereby increasing the accuracy during screening, and when screening, through the setting of the dust reduction nozzle, a fog spraying operation can be carried out on the construction waste, so that effective dust reduction treatment can be carried out when spraying the fog, preventing dust dispersion when the waste is screened.

[0004] When the existing screening mechanism screens construction waste, since the construction waste is easy to deposit or block at the bottom of the screen, the screen is difficult to be cleaned in time; after screening, it is necessary to manually remove the larger construction waste above the screen or the sieve plate before starting the next screening work, reducing the screening effect and efficiency of the construction waste. Summary of the Invention

[0005] The purpose of the utility model is to solve the deficiencies of the prior art and provide a horizontal multi-stage screening machine for construction waste treatment.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A horizontal multi-stage screening machine for construction waste treatment includes a base, support columns, rotating gears, a first rotating shaft, a first motor, a screen, a support plate, a second rotating shaft, a second motor, a mounting plate, stirring spike rakes, a feeding hopper, a receiving box, and a return box.

[0008] The base is formed by welding 4 pipes horizontally into a rectangular matrix. Four support columns are erected upward at the four corner edges of the base. The lower ends of the support columns are fixedly connected to the base respectively. Rotating gears are inlaid on the upper parts of each support column; the rotating gears are engaged and connected with the first rotating shaft through large gears; the first rotating shaft extends from the left support column to the right support column until the first motor. The first motor is installed on the right mounting plate welded on the base. The first rotating shaft and the transmission shaft of the first motor are connected and driven by a belt;

[0009] The sieve is a hollow cylindrical body formed by splicing or joining rectangular mesh sheets, inclined at a certain angle downward from left to right with respect to the horizontal direction. The sieve is engaged and connected with the rotating gear; the support plate is a rectangular plate, vertically passing through the axis center of the sieve cylindrical body. The two ends of the support plate are connected to the sieve; the second rotating shaft horizontally and obliquely passes through the axis center of the sieve cylindrical body, extending downward from left to right until the second motor; the second motor is also installed on the right mounting plate welded on the base. The second rotating shaft and the drive shaft of the second motor are connected and driven by a belt; the mounting plate is a rectangular plate. The center of the mounting plate passes through the second rotating shaft. Stirring spike rakes are connected to both ends of the mounting plate. The stirring spike rakes are in the shape of spike rakes, extending from the top to the bottom of the sieve; the feeding hopper is arranged outside the left support plate, the receiving box is arranged below the sieve, and the return box is arranged obliquely below the tail end of the sieve.

[0010] Preferably, the sieves are arranged from high to low as fine sieve, medium sieve, and coarse sieve according to the aperture size of the sieve holes.

[0011] Preferably, the sieves are sequentially fixed by passing limit screws and nuts through the mesh holes and are limited on a ring on the outer circumference of the cylindrical body.

[0012] Preferably, a discharge hopper is arranged directly below the bottom of each sieve and points to the receiving box.

[0013] Preferably, a dust-proof cover is arranged from the upper part of the sieve to the base.

[0014] Preferably, a plurality of foot pads are arranged at the bottom of the base, and anti-slip pads are arranged at the lower ends of the plurality of foot pads.

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

[0016] 1. A multi-stage sieve including a fine sieve, a medium sieve, and a coarse sieve is set up to achieve multi-stage screening;

[0017] 2. A stirring rake is provided to stir and disperse the construction waste at the bottom of the sieve when the construction waste is sieved by the rotating sieve, so as to prevent the construction waste from depositing or blocking at the bottom of the sieve.

[0018] 3. By setting the foot pads and anti-slip pads, the vibration and displacement of the horizontal multi-stage screening machine are reduced, making the operation of the horizontal multi-stage screening machine more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings described below are only exemplary. For those of ordinary skill in the art, without creative efforts, other implementation drawings can also be obtained based on the provided drawings.

[0020] The structures, proportions, sizes, etc. illustrated in this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they do not have technical substantive significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present invention.

[0021] Figure 1 It is a schematic structural diagram of a horizontal multi-stage screening machine for treating construction waste proposed by the present invention.

[0022] Figure 2 It is a schematic structural diagram of the rotating gear of a horizontal multi-stage screening machine for treating construction waste proposed by the present invention.

[0023] Figure 1 As shown in the figure: 1. Base, 2. Support column, 3. Rotating gear, 4. First rotating shaft, 5. First motor, 6. Sieve, 7. Support plate, 8. Second rotating shaft, 9. Second motor, 10. Installation plate, 11. Stirring rake, 12. Feeding hopper, 13. Material collection box, 14. Return material box.

[0024] Figure 2 As shown in the figure: 1. Base, 2. Support column, 3. Rotating gear, 4. First rotating shaft, 6. Sieve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. The components of the embodiments of the present utility model usually described and illustrated in the drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the claimed present utility model, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0027] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0028] It should be noted that: similar reference numerals and letters are likely to represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0029] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this utility model is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "coupled" 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, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. 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 situations.

[0031] Refer to Figure 1, a horizontal multi-stage screening machine for construction waste treatment disclosed by the present utility model includes a base 1, support columns 2, rotating gears 3, a first rotating shaft 4, a first motor 5, a screen 6, a support plate 7, a second rotating shaft 8, a second motor 9, a mounting plate 10, stirring rakes 11, a feeding hopper 12, a material collecting box 13, and a return material box 14.

[0032] Referring to Figure 2 , the structure at the rotating gear of a horizontal multi-stage screening machine for construction waste treatment proposed by the present utility model. The base 1 is a rectangular pipe matrix for supporting the horizontal multi-stage screening machine; cushion feet and anti-slip pads are provided below the bottom of the base 1, and support columns 2 are vertically welded and installed upward from the bottom of the base 1. The rotating gear 3 is embedded in the upper part of the support column 2, and the rotating gear 3 is connected by meshing with the first rotating shaft 4 through a large gear; the first rotating shaft 4 passes through the centers of the left and right large gears until it reaches the first motor 5 on the right mounting plate welded to the base 1, and the transmission shaft of the first motor 5 is connected by a belt and drives the first rotating shaft 4; the cylindrical screen 6 that is inclined at a certain angle downward from left to right with respect to the horizontal direction is formed by splicing or joining rectangular mesh sheets. The screen 6 is sequentially provided with fine screens, medium screens, and coarse screens from high to low according to the aperture size of the screen holes. Below the bottom of each screen 6, a discharge hopper points to the fine screen, medium screen, and coarse screen material collecting boxes 13, and a return material box 14 is provided obliquely below the tail end of the coarse screen 6; both ends of the support plate 7 vertically passing through the center of the cylindrical screen 6 are connected to the screen 6; the second rotating shaft 8 extends downward from left to right to the second motor 9 on the right mounting plate welded to the base 1, and the transmission shaft of the second motor 9 is connected by a belt and drives the second rotating shaft 8; both ends of the mounting plate 10 are connected to the stirring rakes 11, and the stirring rakes 11 extend from the top to the bottom of the screen 6. When the construction waste is screened by the rotating screen, the stirring rakes 11 stir and disperse the construction waste at the bottom of the screen to prevent the construction waste from depositing or blocking at the bottom of the screen; the feeding hopper 12 is provided outside the left support plate 7, the material collecting box 13 is provided below the screen 6, and the return material box 14 is provided obliquely below the tail end of the screen 6.

[0033] In an optional embodiment, a dust-proof cover is provided from the upper part of the screen 6 to the base 1 to prevent the dust in the construction waste from splashing or volatilizing into the air when the screening machine is working.

[0034] In an optional embodiment, the screen 6 is sequentially fixed by passing limit screws and nuts through the mesh holes and is limited on a ring on the outer circumference of the cylinder to keep the screen stretched and tightly attached to the limit ring.

[0035] Embodiment 1

[0036] This embodiment takes the screening process of a horizontal multi-stage vibrating screen as an example to illustrate its working principle and process.

[0037] Start the first motor 5 and the second motor 9, drive the first rotating shaft 4 and the second rotating shaft 8 to rotate through the belt, thereby driving the rotating gear 3 and the mounting plate 10, and then driving the screen 6 and the stirring rake 11 to rotate in the same direction; after the construction waste is added from the feeding hopper 12, under the action of its own gravity and the rotation of the rotating screen 6, it sifts along the screen 6 in turn on the fine screen, medium screen, and coarse screen; the rotating stirring rake 11 also stirs and disperses the construction waste at the bottom of the screen 6; the construction waste with a particle size smaller than the aperture of the screen 6 falls into the discharge hopper through the mesh of the screen and then into the fine screen or medium screen or coarse screen collection box 13; finally, the construction waste that cannot pass through the coarse screen 6 falls into the return box 14 for re-grinding.

[0038] Embodiment 2

[0039] Except that the screen 6 and the stirring rake 11 rotate in the opposite direction, other conditions are the same as those in Embodiment 1.

[0040] Certainly, the embodiments of this specific implementation manner are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A horizontal multi-stage screening machine for construction waste treatment, characterized in that: It includes a base (1), support columns (2), rotating gears (3), a first rotating shaft (4), a first motor (5), a sieve (6), a support plate (7), a second rotating shaft (8), a second motor (9), a mounting plate (10), stirring rakes (11), a feeding hopper (12), a material receiving box (13), and a return material box (14); The base (1) is a rectangular matrix welded by 4 pipes in the horizontal direction. At the four corner edges of the base (1), 4 support columns (2) stand upright. The lower ends of the support columns (2) are respectively fixedly connected to the base (1). The upper part of each support column (2) is inlaid with a rotating gear (3); the rotating gear (3) is connected by a large gear to the first rotating shaft (4) in a meshing manner; the first rotating shaft (4) extends from the left support column (2) to the right support column (2) until it reaches the first motor (5). The first motor (5) is installed on the right mounting plate welded on the base (1). The first rotating shaft (4) and the transmission shaft of the first motor (5) are connected and driven by a belt; The sieve (6) is a hollow cylindrical body formed by splicing or joining rectangular mesh sheets, inclined at a certain angle downward from left to right with respect to the horizontal direction. The sieve (6) is connected to the rotating gear (3) in a meshing manner; the support plate (7) is a rectangular plate, vertically passing through the axis center of the cylindrical body of the sieve (6). The two ends of the support plate (7) are connected to the sieve (6); the second rotating shaft (8) horizontally and obliquely passes through the axis center of the cylindrical body of the sieve (6), extending from left to right downward to the second motor (9); the second motor (9) is also installed on the right mounting plate welded on the base (1). The second rotating shaft (8) and the drive shaft of the second motor (9) are connected and driven by a belt; the mounting plate (10) is a rectangular plate. The center of the mounting plate (10) passes through the second rotating shaft (8). The two ends of the mounting plate (10) are connected to the stirring rakes (11). The stirring rakes (11) are in the shape of rakes, extending from the top to the bottom of the sieve (6); the feeding hopper (12) is arranged outside the left support plate (7). The material receiving box (13) is arranged below the sieve (6). The return material box (14) is arranged obliquely below the tail end of the sieve (6).

2. The horizontal multi-stage screening machine for construction waste treatment according to claim 1, wherein: The sieve (6) is successively provided with fine, medium, and coarse sieves from high to low according to the aperture size of the sieve holes.

3. A horizontal multi-stage screening machine for construction waste treatment according to claim 1, characterized in that: The sieve (6) is successively fixed by passing limit screws and nuts through the mesh holes and is limited on a ring on the outer circumference of the cylindrical body.

4. A horizontal multi-stage screening machine for construction waste treatment according to claim 1, characterized in that: Below the bottom of each sieve (6), a discharge hopper is provided and points to the material receiving box (13).

5. A horizontal multi-stage screening machine for construction waste treatment according to claim 1, characterized in that: A dust cover is provided from the upper part of the sieve (6) to the base (1).

6. The horizontal multi-stage screening machine for construction waste treatment according to claim 1, characterized in that: Several foot pads are provided at the bottom of the base (1), and anti-slip pads are provided at the lower ends of the several foot pads.

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