Multi-stage screening device

Abstract

The utility model relates to the field of screening equipment, and discloses a multi-stage screening device which comprises a base and a screening tank arranged on the upper surface of the base through a supporting assembly, the supporting assembly comprises multiple sets of first supporting plates, multiple sets of second supporting plates and multiple sets of fixing plates, and the multiple sets of second supporting plates are arranged on the base; the second supporting plates and the multiple sets of first supporting plates are distributed on the outer surface of the screening tank in an annular array mode, the lower ends of the second supporting plates are rotationally connected with the fixing plates through rotating joints, the fixing plates are fixedly installed on the upper surface of the base, and the sum of the lengths of the second supporting plates and the fixing plates is equal to the lengths of the first supporting plates. The second supporting plate and the fixed plate are connected through the rotating joint, the second supporting plate and the screening tank can rotate around the rotating joint, after screening is finished, a user can lift the screening tank body to enable the screening tank body to rotate around the rotating joint, and therefore the whole screening tank is inclined, and raw materials stacked on the screening plate can be discharged from the first discharging channel.

Description

Technical Field

[0001] The present application relates to the field of screening equipment, and in particular to a multi-stage screening device. Background Art

[0002] The multi-stage screening device can classify particles of different particle sizes in granular raw materials to meet the classification of raw material quality. The existing multi-stage screening device usually has multiple screening layers, each screening layer has a different mesh size, and each screening layer is usually vertically distributed inside the screening barrel. After passing through a screening layer, the raw material can fall into the screening layer below for secondary screening. After the screening is completed, the graded raw materials are piled on each screening layer, which is not conducive to discharge. Therefore, a multi-stage screening device is proposed. Utility Model Content

[0003] In order to solve the problem that the existing screening layers are usually vertically distributed inside the screening barrel, and after screening, graded raw materials are piled up on each screening layer, which is not conducive to discharge, the present application provides a multi-stage screening device.

[0004] The multi-stage screening device provided in this application adopts the following technical solution:

[0005] A multi-stage screening device comprises a base, and a screening tank arranged on the upper surface of the base through a support assembly, the support assembly comprises a first support plate, a second support plate and a fixed plate, the first support plates are provided in multiple groups, the second support plates and the multiple groups of first support plates are distributed in a circular array on the outer surface of the screening tank, the lower end of the second support plate is rotatably connected to the fixed plate through a rotating joint, and the fixed plate is fixedly installed on the upper surface of the base, and the sum of the lengths of the second support plate and the fixed plate is equal to the length of the first support plate.

[0006] Preferably, a supporting mechanism is provided between the first supporting plate and the base on both sides, and the supporting mechanism includes an outer cylinder and a telescopic rod slidably inserted at one end of the outer cylinder, and the other ends of the outer cylinder and the telescopic rod are rotatably connected with a slider through a rotating shaft, and sliding seats adapted to the slider are fixedly connected on both sides of the base, and the slider fixedly connected to the outer cylinder is cooperatively installed inside the sliding seat, and a through groove adapted to the first supporting plate is provided on the surface of the slider fixedly connected to the telescopic rod, and the slider is sleeved on the surface of the first supporting plate, and a spring is sleeved on the surface of the telescopic rod.

[0007] Preferably, a plurality of groups of sieve plates are fixedly installed in sequence from top to bottom inside the screening tank, the screening apertures of the sieve plates decrease in sequence from top to bottom, and vibrators are installed on the surfaces of the sieve plates.

[0008] Preferably, the side wall of the screening tank is connected with a plurality of groups of first discharge channels along the upper surface of the screen plate.

[0009] Preferably, a feed channel is fixedly connected through the upper surface of the screening tank, and a second discharge channel is fixedly connected through the bottom of the screening tank.

[0010] In summary, this application includes the following beneficial technical effects:

[0011] The utility model connects the second support plate and the fixed plate by arranging a rotating joint, so that the second support plate and the screening tank can rotate around the rotating joint. After the screening is completed, the user can lift the screening tank body to rotate it around the rotating joint, so that the screening tank is tilted as a whole, and the raw materials accumulated on the screen plate can be discharged from the first discharge channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the application;

[0013] Figure 2 is a cross-sectional view of a screening tank according to an embodiment of the application;

[0014] Figure 3 is a schematic diagram of the structure of the support mechanism of the application embodiment;

[0015] Figure 4 Application Example Figure 1 Enlarged view of point A in the middle.

[0016] Explanation of the accompanying drawings: 1. Screening tank; 2. Feed channel; 3. First discharge channel; 4. Second discharge channel; 5. First support plate; 6. Base; 7. Outer cylinder; 8. Slide seat; 9. Slider; 10. Spring; 11. Telescopic rod; 12. Second support plate; 13. Fixed plate; 14. Rotating joint; 15. Screen plate; 16. Vibrator. DETAILED DESCRIPTION

[0017] The following is combined with Figure 1-4 This application is described in further detail.

[0018] An embodiment of the present application discloses a multi-stage screening device, including a base 6, and a screening tank 1 arranged on the upper surface of the base 6 through a support assembly, the support assembly including a first support plate 5, a second support plate 12 and a fixed plate 13, the first support plates 5 are provided in multiple groups, the second support plates 12 and the multiple groups of first support plates 5 are distributed in a circular array on the outer surface of the screening tank 1, the lower end of the second support plate 12 is rotatably connected to the fixed plate 13 through a rotating joint 14, and the fixed plate 13 is fixedly installed on the upper surface of the base 6, and the sum of the lengths of the second support plate 12 and the fixed plate 13 is equal to the length of the first support plate 5.

[0019] Furthermore, support mechanisms are provided between the first support plates 5 and the base 6 on both sides, and the support mechanisms include an outer cylinder 7 and a telescopic rod 11 slidably inserted at one end of the outer cylinder 7, and the other ends of the outer cylinder 7 and the telescopic rod 11 are rotatably connected with a slider 9 through a rotating shaft, and both sides of the base 6 are fixedly connected with a slide seat 8 adapted to the slider 9, and the slider 9 fixedly connected to the outer cylinder 7 is cooperatively installed inside the slide seat 8, and the surface of the slider 9 fixedly connected to the telescopic rod 11 is provided with a through groove adapted to the first support plate 5, the slider 9 is sleeved on the surface of the first support plate 5, and the surface of the telescopic rod 11 is sleeved with a spring 10.

[0020] Furthermore, a plurality of sieve plates 15 are fixedly installed in sequence from top to bottom inside the screening tank 1 , the screening apertures of the sieve plates 15 decrease in sequence from top to bottom, and vibrators 16 are installed on the surfaces of the sieve plates 15 .

[0021] Furthermore, a plurality of first discharge channels 3 are connected through the side wall of the screening tank 1 along the upper surface of the sieve plate 15 .

[0022] Furthermore, a feed channel 2 is fixedly connected to the upper surface of the screening tank 1, and a second discharge channel 4 is fixedly connected to the bottom of the screening tank 1. In actual use, a corresponding solenoid valve component can be provided for the second discharge channel 4 to control the on and off of the second discharge channel 4. A corresponding button is provided on the surface of the screening tank 1, and the button is pressed to control the switch of the solenoid valve component.

[0023] In this embodiment, a rotating joint 14 is provided to connect the second support plate 12 and the fixed plate 13, so that the second support plate 12 and the screening tank 1 can rotate around the rotating joint 14. Specifically, after the screening is completed, the user can lift the body of the screening tank 1 and rotate it around the rotating joint 14, so that the screening tank 1 is tilted as a whole, and the raw materials accumulated on the screen plate 15 can be discharged from the first discharge channel 3; in addition, by providing a supporting mechanism, the telescopic rod 11 can be telescoped inside the outer cylinder 7 to meet the change in the distance between the first support plate 5 and the base 6 when the screening tank 1 rotates, and the outer cylinder 7 and the telescopic rod 11 are both rotatably connected to the slider 9 through a rotating shaft, and can cooperate with the angle change of the outer cylinder 7 and the telescopic rod 11 when the screening tank 1 rotates. The outer cylinder 7, the telescopic rod 11, the slide seat 8 and the first support plate 5 form a triangular structure, which can support the screening tank 1.

[0024] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0025] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0026] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

[0027] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A multi-stage screening device, comprising a base (6), and a screening tank (1) arranged on the upper surface of the base (6) via a supporting assembly, characterized in that: The support assembly comprises a first support plate (5), a second support plate (12) and a fixed plate (13); the first support plate (5) is provided in a plurality of groups; the second support plate (12) and the plurality of first support plates (5) are distributed in a ring array on the outer surface of the screening tank (1); the lower end of the second support plate (12) is rotatably connected to the fixed plate (13) via a rotating joint (14); the fixed plate (13) is fixedly mounted on the upper surface of the base (6); and the sum of the lengths of the second support plate (12) and the fixed plate (13) is equal to the length of the first support plate (5).

2. A multi-stage screening device according to claim 1, characterized in that: A support mechanism is provided between the first support plate (5) and the base (6) on both sides, and the support mechanism comprises an outer cylinder (7) and a telescopic rod (11) slidably inserted at one end of the outer cylinder (7); the other ends of the outer cylinder (7) and the telescopic rod (11) are rotatably connected with a slider (9) via a rotating shaft; both sides of the base (6) are fixedly connected with a slide seat (8) adapted to the slider (9); the slide seat (9) fixedly connected to the outer cylinder (7) is cooperatively installed inside the slide seat (8); a through groove adapted to the first support plate (5) is provided on the surface of the slide seat (9) fixedly connected to the telescopic rod (11); the slide seat (9) is sleeved on the surface of the first support plate (5); and a spring (10) is sleeved on the surface of the telescopic rod (11).

3. A multi-stage screening device according to claim 1, characterized in that: A plurality of groups of sieve plates (15) are fixedly installed in sequence from top to bottom inside the sieve tank (1), the sieve apertures of the sieve plates (15) decrease in sequence from top to bottom, and vibrators (16) are installed on the surfaces of the sieve plates (15).

4. A multi-stage screening device according to claim 3, characterized in that: The side wall of the screening tank (1) is connected to a plurality of first discharge channels (3) along the upper surface of the screen plate (15).

5. A multi-stage screening device according to claim 3, characterized in that: The upper surface of the screening tank (1) is fixedly connected with a feed channel (2), and the bottom of the screening tank (1) is fixedly connected with a second discharge channel (4).

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