Solid-liquid mixture particle screening, grading and applying device

Abstract

The utility model relates to a solid-liquid mixture particle screening, grading and applying device, and belongs to the technical field of soil treatment. The device comprises a screening box body with an inlet and an outlet, multiple stages of screening mechanisms are sequentially arranged in the box body, and each stage comprises an inclined screening plate and a driving assembly; the sieve plate is linked with the swing connecting rod through the eccentric wheel to achieve digging, transporting and throwing actions, the sizes of meshes are gradually reduced to separate particles with different particle sizes, and oversize materials are conveyed to the independent applying and scattering openings through the corresponding screw rod bins. In the working process of the device, small particles preferentially improve the soil through bottom layer screening, and large particles enhance the wind and sand resistance through the surface application layer, so that the soil fertility improvement and sand stabilization effects are synchronously achieved. Through the optimal design of the swing path of the sieve plate and the precise material conveying of the screw bin, the problem that a solid-liquid mixture is difficult to layer and cover in desertification control is solved, the sorting efficiency and the spreading uniformity are improved, and the device has the characteristics of being compact in structure, reliable in driving and high in applicability, and is suitable for large-scale control of desertification and saline-alkali soil.

Description

Technical Field

[0001] This utility model relates to a screening and grading application device, and more particularly to a screening and grading application device for solid-liquid mixture particles. Background Technology

[0002] In the technology of using coal gangue to manage deserts and saline-alkali land, the coal gangue is crushed into a solid-liquid mixture, which is then transported to the area to be treated and spread on the desert and saline-alkali land. The coal gangue is used to improve the soil fertility and increase the soil aeration and permeability.

[0003] During the treatment process, small-particle mixtures can be applied first, followed by covering with larger-particle solid-liquid mixtures. The larger particles on the surface act as windbreaks and sand-fixing agents, effectively promoting the retention of the solid-liquid mixture in the desert.

[0004] Therefore, those skilled in the art are dedicated to developing a device for screening, grading, and spreading solid-liquid mixture particles. Utility Model Content

[0005] To achieve the above objectives, this utility model provides a solid-liquid mixture particle screening, grading, and application device, comprising:

[0006] The screening box has a material inlet and an outlet at each end;

[0007] A multi-stage, series-connected screening mechanism is sequentially arranged within the screening box along the material flow direction. Each stage of the screening mechanism includes:

[0008] An inclined screen plate with a predetermined mesh size is installed at an angle towards the outlet direction;

[0009] The drive assembly includes an eccentric wheel assembly connected to a drive motor and a swing linkage mechanism connecting the screen plate and the eccentric wheel. The swing linkage is provided with an extension groove and a sliding pin that can move along the groove. The swing axis of the screen plate can be changed by adjusting the fixed position of the sliding pin in the groove.

[0010] In the multi-stage screening mechanism, the mesh size of the sieve plate is set to decrease step by step along the material flow direction, and is driven by the corresponding drive component to generate periodic oscillation, so as to realize the step-by-step screening and directional conveying of materials.

[0011] A multi-stage screw hopper is provided, with each stage of the screening mechanism connected to a corresponding screw hopper. The inlet of each screw hopper is connected to the discharge end of the screen plate, and each stage of the screw hopper is provided with an independent spraying port.

[0012] The drive motor drives the eccentric wheel to swing the screen plate, so that the screen plate performs digging, transporting and scattering actions in sequence.

[0013] Furthermore, the sliding pin is located on the adjusting plate. The sliding pin of the adjusting plate can be moved up and down in the groove of the swing connecting rod by the lead screw motor, thereby adjusting the swing axis of the screen plate.

[0014] Furthermore, the swing trajectory of the screen plate includes three stages executed sequentially: the digging stage, in which the digging end of the screen plate descends to the bottom of the screening box to collect the material to be processed; the lifting stage, in which the screen plate tilts and lifts to push the material on the screen towards the screw hopper; and the unloading stage, in which the unloading end of the screen plate swings to above the feed inlet of the screw hopper to complete the transfer of the material on the screen.

[0015] Furthermore, the drive motor drives each eccentric pulley set via a synchronous belt.

[0016] Furthermore, the bottom of the screening box is provided with a recess corresponding to the digging position.

[0017] Furthermore, the screw chamber is equipped with a rotating screw, which uniformly transports the solid-liquid mixture to the corresponding application port through the rotation of the screw.

[0018] Furthermore, the sieve plate is inclined toward the outlet direction at an angle of 20-45°.

[0019] This invention achieves efficient grading and precise application of solid-liquid mixture particles through a multi-stage series screening mechanism and a dynamically oscillating screen plate design. During the continuous actions of the screen plate's digging, transporting, and spreading, particles of different sizes are separated step-by-step and guided to corresponding application ports by independent screw chambers. This ensures that smaller particles preferentially improve soil fertility, while larger particles are used for surface covering to enhance windbreak and sand-fixing effects. Precise control of the screen plate's oscillation trajectory and the adjustability of the drive components further improve screening efficiency and reliability. Simultaneously, the coordination between the screen plate's tilt angle and the recessed part of the housing reduces material residue. This device not only solves the problem of stratified covering of solid-liquid mixtures in sandy land management but also significantly improves material utilization through automated sorting and application, providing a compact and highly adaptable solution for desert and saline-alkali land management.

[0020] The following will further explain the concept, specific structure and technical effects of this utility model in conjunction with the accompanying drawings, so as to fully understand the purpose, features and effects of this utility model. Attached Figure Description

[0021] Figure 1 This is a first-view perspective perspective view of a solid-liquid mixture particle screening, grading and spreading device in a preferred embodiment of the present invention.

[0022] Figure 2 yes Figure 1 A second-view perspective stereoscopic view of a solid-liquid mixture particle screening, grading, and application device.

[0023] Figure 3 yes Figure 1 A 3D diagram of a screening facility in the image;

[0024] Figure 4 yes Figure 1 A side view of the solid-liquid mixture particle screening, grading and spreading device in the digging state;

[0025] Figure 5 yes Figure 1 A side view of a solid-liquid mixture particle screening, grading, and spreading device in transport condition;

[0026] Figure 6 yes Figure 1 A side view of the solid-liquid mixture particle screening, grading and spreading device in the spreading state. Detailed Implementation

[0027] The following description, with reference to the accompanying drawings, illustrates several preferred embodiments of the present invention to make its technical content clearer and easier to understand. The present invention can be embodied in many different forms, and the scope of protection of the present invention is not limited to the embodiments mentioned herein.

[0028] In the accompanying drawings, components with the same structure are indicated by the same numerical designation, and components with similar structures or functions are indicated by similar numerical designations. The dimensions and thicknesses of each component shown in the drawings are arbitrary, and this invention does not limit the dimensions and thicknesses of each component. To make the illustrations clearer, the thickness of some components has been appropriately exaggerated in the drawings.

[0029] As shown in Figure 1, a preferred embodiment of the solid-liquid mixture particle screening and grading application device of this utility model includes a screening box 1 with an inlet 2 and an outlet 3. A multi-stage screening mechanism and a corresponding screw chamber are sequentially arranged between the inlet 2 and the outlet 3 of the screening box 1. Figure 1 In one embodiment, there are a first-stage screening structure 10 and a first screw chamber 5, a second-stage screening mechanism 20 and a second screw chamber 6, and a third-stage screening mechanism 30 and a third screw chamber 7.

[0030] like Figure 2 As shown, the oversize material of the first-stage screening structure 10 is output through the first screw chamber 5 and the first spray port 51; the oversize material of the second-stage screening structure 20 is output through the second screw chamber 6 and the second spray port 61; and the oversize material of the third-stage screening structure 30 is output through the third screw chamber 7 and the third spray port 71.

[0031] Next Figure 3 Taking the first-level screening structure 10 as an example, the screening mechanism will be explained. Figure 3As shown, the first-stage screening structure 10 includes a screen plate 11 inclined towards the outlet direction within a screening box 1. The screen plate 11 has mesh holes 12. The screen plate 11 is mounted on an eccentric wheel 14 via swing linkages 13. One end of each swing linkage 13 is pivotally connected to the screen plate 11, and the other end is pivotally connected to a rotating pin 15 on the eccentric wheel 14. Each swing linkage 13 has a sliding groove 131. The sliding pin 181 on the adjusting plate 18 fits into the sliding groove 131 of the swing linkage 13. The drive motor 16 drives each eccentric wheel 15 to rotate via a synchronous belt 17, causing each swing linkage 13 to swing around the sliding pin 181 as its swing axis, thus driving the screen plate 11 to swing. The swing trajectory of the screen plate 11 is as follows: Figure 4-6 As shown, it includes three states: excavation, transportation, and disposal. In... Figure 4 In the digging state shown, the sieve plate 11 digs downwards to extract the solid-liquid mixture, while the lower end of the sieve plate enters the recess 4 set in the bottom plate of the screening box 1. Figure 5 In the transport configuration shown, the screen plate 11 is lifted upwards, transporting the material on the screen to the first screw compartment 5. In such a configuration... Figure 6 In the throwing state shown, the sieve plate 11 throws the screened material through the opening 51 of the first screw chamber 5 into the first screw chamber 5. The first screw chamber 5 outputs the solid-liquid mixture through the first spray port 51 via the screw. The drive motor 16, synchronous belt 17, and each eccentric wheel 15 are mounted on the same frame. At the same time, the adjusting plate 18 is also mounted on the same frame via the lead screw motor 19 and guide column 191. The lead screw motor 19 and guide column 191 allow the sliding pin 181 of the adjusting plate 18 to slide up and down in the sliding groove 131 of the swing connecting rod 13, thereby adjusting the swing axis of the sieve plate. The change in the swing axis will ultimately change the amplitude of the sieve plate, thereby changing the content of solid particles screened out by the sieve plate.

[0032] Except for the size of the sieve plate mesh, the screening mechanisms at each level are identical. In this embodiment, the mesh size of the first-stage sieve plate 11 is larger than that of the second-stage sieve plate 12, and the mesh size of the second-stage sieve plate 12 is larger than that of the third-stage sieve plate 13.

[0033] This device achieves efficient grading and precise application of solid-liquid mixture particles through a multi-stage cascaded screening mechanism and a dynamically oscillating screen plate design. During the continuous actions of screen plate digging, transporting, and spreading, particles of different sizes are separated step-by-step and guided to corresponding application ports by independent screw chambers. This ensures that smaller particles preferentially improve soil fertility, while larger particles are used for surface covering to enhance windbreak and sand-fixing effects. Precise control of the screen plate's oscillation trajectory and the adjustability of the drive components further improve screening efficiency and reliability. Simultaneously, the coordination between the screen plate's tilt angle and the recessed part of the housing reduces material residue. This device not only solves the problem of stratified coverage of solid-liquid mixtures in sandy land management but also significantly improves material utilization through automated sorting and application, providing a compact and highly adaptable solution for desert and saline-alkali land management.

[0034] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A device for screening, grading, and applying particles of a solid-liquid mixture, characterized in that, include: The screening box has a material inlet and an outlet at each end; A multi-stage, series-connected screening mechanism is sequentially arranged within the screening box along the material flow direction. Each stage of the screening mechanism includes: An inclined screen plate with a predetermined mesh size is installed at an angle towards the outlet direction; The drive assembly includes an eccentric wheel assembly connected to a drive motor and a swing linkage mechanism connecting the screen plate and the eccentric wheel. The swing linkage is provided with an extension groove and a sliding pin that can move along the groove. The swing axis of the screen plate can be changed by adjusting the fixed position of the sliding pin in the groove. In the multi-stage series screening mechanism, the mesh size of the sieve plate is set to decrease step by step along the material flow direction, and is driven by the corresponding drive component to generate periodic oscillation, so as to realize the step-by-step screening and directional conveying of materials. A multi-stage screw hopper is provided, with each stage of the screening mechanism connected to a corresponding screw hopper. The inlet of each screw hopper is connected to the discharge end of the screen plate, and each stage of the screw hopper is provided with an independent spraying port. The drive motor drives the eccentric wheel to swing the screen plate, so that the screen plate performs digging, transporting and scattering actions in sequence.

2. The solid-liquid mixture particle screening, grading, and application device as described in claim 1, wherein, The sliding pin is located on the adjusting plate. The sliding pin of the adjusting plate can be moved up and down in the groove of the swing connecting rod by the screw motor, thereby adjusting the swing axis of the screen plate.

3. The solid-liquid mixture particle screening, grading, and application device as described in claim 1, wherein, The oscillation trajectory of the sieve plate is set to include three stages executed sequentially: During the excavation stage, the excavation end of the screen plate extends down to the bottom of the screening box to collect the material to be processed; During the lifting phase, the screen plate tilts and rises, pushing the material on the screen towards the screw chamber; During the unloading stage, the unloading end of the screen plate swings to the top of the screw hopper feed inlet to complete the transfer of the material on the screen.

4. The solid-liquid mixture particle screening, grading, and application device as described in claim 1, wherein, The drive motor drives each eccentric pulley set via a synchronous belt.

5. The solid-liquid mixture particle screening, grading, and spreading device as described in claim 1, wherein, The bottom of the screening box has a recess corresponding to the digging position.

6. The solid-liquid mixture particle screening, grading, and application device as described in claim 1, wherein, The screw chamber is equipped with a rotating screw, which uniformly delivers the solid-liquid mixture to the corresponding application port through the rotation of the screw.

7. The solid-liquid mixture particle screening, grading, and application device as described in claim 1, wherein, The sieve plate is inclined toward the outlet direction at an angle of 20-45°.

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