Soil vibration screening instrument

Abstract

The utility model discloses a soil vibration screening instrument, which belongs to the technical field of soil screening, and a vibration screening box comprises a vibration adjusting frame and a multi-layered spiral screening assembly, the vibration adjusting frame comprises a vibration tray, a screw rod, a central column and a fixing ring; the multi-layer spiral screening assembly comprises a single-pipe spiral flow guide channel and a multi-layer spiral screening ring which are communicated from top to bottom, the single-pipe spiral flow guide channel is arranged in the annular space and fixedly connected to the top of the center column, and the multi-layer spiral screening ring is connected to the center column in a penetrating and sleeving mode and connected to the screw. According to the screening instrument, screening parameters can be adjusted in real time, so that the screening precision and the screening efficiency are improved, and the cost consumption is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of soil screening, and in particular relates to a soil vibration screening instrument. Background Art

[0002] Soil screening is an important prerequisite for soil testing and is crucial for ensuring the accuracy and reliability of soil testing. It breaks up aggregates in soil samples, making them more uniform and facilitating subsequent chemical, physical, and biological analyses. Soil is graded according to particle size to investigate physical properties such as particle size distribution, porosity, and water retention capacity. It also provides the ideal sample state for soil analyses such as organic matter content, nutrient levels, and heavy metal content.

[0003] Traditional sieving machines often incorporate multiple horizontal layers of soil sieves (screens) within their screening boxes. Controlled by a vibrating motor, soils of varying particle sizes are separated by the meshes within the spatial confines of the sieves through a process of up-and-down vibration and gravity. This process fails to account for the interactions and influences of spatial channel slope, mesh size density, and vibration parameters, limiting their adaptability to soil samples with varying characteristics. Therefore, a sieving machine is needed that can adjust screening parameters in real time based on soil sample characteristics to improve screening efficiency and accuracy. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a soil vibration screening instrument capable of adjusting screening parameters in real time to improve screening efficiency and accuracy.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] In a first aspect, the present invention provides a soil vibration screening instrument, comprising a control base, wherein the control base is equipped with a control unit having external physical control buttons and a touch screen, a vibration motor electrically connected to the control unit, and a vibration screening box connected to the vibration motor:

[0007] The vibration screening box includes a vibration adjustment frame and a multi-layered spiral screening assembly;

[0008] The vibration adjustment frame includes a vibration tray, a screw, a center column and a fixing ring. The bottom of the vibration tray is connected to the vibration motor. The center of the vibration tray is provided with an upwardly extending center column, and at least three upwardly extending screws are evenly arranged along the circumference with the center column as the center. The fixing ring is passed through and fixed to the top of the screw.

[0009] The multi-layer spiral screening assembly comprises single-pipe spiral flow guide channels and multi-layer spiral screening rings connected in sequence from top to bottom.

[0010] The multi-layer spiral screening rings are provided with at least three layers of screening channels with diameters of screen holes decreasing from top to bottom.

[0011] Further, the screening channels of the multi-layer spiral screening rings extend in a stepped decreasing manner, and each of the screening channels is connected with a recovery guide pipe.

[0012] Further, the vibrating screening box further comprises a box shell sleeved on the vibration adjusting frame, and the box shell and the vibrating tray jointly form a bottom receiving cavity.

[0013] Further, the center column is provided with a supporting block on the upper side wall, which is supported on the outside lower part of the discharge port of the single-pipe spiral flow guide channel and fixedly connected to the side end face of the feed port of the multi-layer spiral screening ring.

[0014] Further, the spiral inner side of the multi-layer spiral screening ring is connected to the side face of the center column through a plastic elastic strip.

[0015] Further, the cross section of the screening channel of the multi-layer spiral screening ring is semicircular or arc-shaped.

[0016] Further, the single-pipe spiral flow guide channel is connected with a mill and a material hopper connected with the mill.

[0017] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the soil vibration screening instrument provided by the present invention adopts a vibration adjustment frame and a multi-layered spiral screening component, a vibration tray, a screw, a center column and a fixing ring are arranged in the vibration adjustment frame to support, fix and accommodate the single-tube spiral guide channel and the multi-layered spiral screening ring of the multi-layered spiral screening component; at least three layers of screening channels with sieve hole diameters that gradually decrease from top to bottom are arranged in the multi-layered spiral screening ring, and an adjustable-length telescopic sleeve is arranged between adjacent multi-layered spiral screening rings on the same screw to An adjusting spring is provided between adjacent screening channels; soil samples of different particle sizes are continuously graded and screened through a multi-layer spiral screening channel layout; soil samples after screening are continuously graded and collected through a step-like decreasing and extending screening channel structure; the slope of the screening channel is adjusted by adjusting the telescopic sleeve on the sleeved screw; and based on the screening efficiency rule and real-time screening monitoring, the vibration parameters of the vibration motor are adjusted in real time through the control unit and physical control buttons to optimize the parameter relationship between the screening channel, vibration parameters and channel slope, thereby significantly improving the soil screening efficiency and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The present invention provides a three-dimensional schematic diagram of a soil vibration screening device according to an embodiment of the present invention.

[0019] Figure 2 A side view of a soil vibration screening instrument provided in an embodiment of the present utility model.

[0020] Figure 3 A cross-sectional view of a soil vibration screening device provided in an embodiment of the present utility model.

[0021] Figure 4 A three-dimensional schematic diagram of a vibrating screening box provided in an embodiment of the utility model.

[0022] Figure 5 This is a front view of a vibrating screening box provided in an embodiment of the present utility model.

[0023] In the picture:

[0024] 1. Control seat 1; 2. Physical button 2; 3. Touch screen 3; 4. Vibration motor 4; 5. Support rod 5; 6. Grinder 6; 7. Material hopper 7; 8. Vibration screening box 8; 9. Vibration tray 9; 10. Center column 10; 11. Screw 11; 12. Fixed ring 12; 13. Single-tube spiral guide channel 13; 14. Multi-layered spiral screening ring 14; 15. Adjustment spring 15; 16. Telescopic sleeve 16; 17. Support block 17; 18. Recovery duct 18; 19. Storage chamber 19. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are not intended to limit the scope of protection of the present invention. Example

[0026] like Figure 1 、 Figure 2 and Figure 3 As shown, a soil vibration screening instrument is provided in an embodiment of the present invention, including a control base 1, a control unit configured with external physical control buttons and a touch screen 3, a vibration motor 4 electrically connected to the control unit, and a vibration screening box 8 connected to the vibration motor 4.

[0027] Above the single-tube spiral flow channel 13, a mill 6 and a material hopper 7 are connected to the mill 6. A retractable flexible hose connects the lower outlet of the material hopper 7 to the feed inlet of the mill 6. The mill 6 is mounted on the control base 1 via a number of vertical support rods 5 and is electrically connected to the control unit.

[0028] The vibration screening box 8 comprises a vibration adjustment frame and a multi-layered spiral screening assembly.

[0029] like Figure 4 、 Figure 5 As shown, the vibration adjustment frame includes a vibration tray 9, a screw 11, a center column 10 and a fixing ring 12. The bottom of the vibration tray 9 is connected to the vibration motor 4. An upward extending center column 10 is provided at the center of the vibration tray 9, and at least three upward extending screws 11 are evenly arranged along the circumference with the center column 10 as the center. The fixing ring 12 is passed through and fixed to the top of the screw 11.

[0030] The multi-layered spiral screening assembly includes a single-tube spiral guide channel 13 and a multi-layered spiral screening ring 14 connected from top to bottom. The single-tube spiral guide channel 13 is spirally arranged in the annular space between the fixed ring 12 and the central column 10 and is fixedly connected to the top of the central column 10. The multi-layered spiral screening ring 14 is spirally connected to the central column 10 on the inner side and is connected to the screw 11 on the outer side which can be adjusted up and down.

[0031] The feed port of the single-tube spiral guide channel 13 is connected to the discharge port of the grinding mill 6 through a retractable soft rubber tube to facilitate buffering and adapting to deformation during vibration.

[0032] The multi-layered spiral screening ring 14 is provided with at least three layers of screening channels with the screen hole diameters decreasing from top to bottom. An adjustable length telescopic sleeve 16 is provided between adjacent multi-layered spiral screening rings 14 on the same screw 11, and an adjusting spring 15 is provided between adjacent screening channels.

[0033] In this embodiment, if Figure 1 、 Figure 2 、 Figure 4 and Figure 5 As shown, at the discharge port of the multi-layered spiral screening ring 14 , the screening channels extend in a step-like decreasing manner, and each screening channel is connected to a recovery conduit 18 .

[0034] like Figure 3 As shown, the vibration screening box 8 also includes a box shell mounted on the vibration adjustment frame, and the lower part of the box shell and the vibration tray together form a bottom storage cavity 19; the outer side of the screening channel and the inner side of the box shell are squeezed and sealed by a sealing strip, and the discharge port of the recovery conduit 18 is arranged through the side wall of the box shell.

[0035] like Figure 4 As shown, a support block 17 is provided on the upper side wall of the central column 10 , and the support block 17 is supported on the lower outer side of the discharge port of the single-tube spiral guide channel 13 and fixedly connected to the side end face of the feed port of the multi-layered spiral screening ring 14 .

[0036] In this embodiment, the inner side of the spiral of the multi-layered spiral screening ring 14 is connected to the side surface of the central column 10 through a plastic elastic strip.

[0037] The cross section of the screening channel of the multi-layered spiral screening ring 14 is semicircular or arc-shaped.

[0038] In conjunction with the specific embodiment, the embodiment of the present utility model provides a specific operation description of the screening of the soil vibration screening instrument as above:

[0039] According to the predetermined screening efficiency standard rules, the length of the telescopic sleeve 16 between the adjacent multi-layer spiral screening rings 14 on the same screw 11 is set in advance, thereby achieving the adjustment channel sliding slope value;

[0040] A number of soil samples to be screened are selected and placed into the grinding mill 6 through the material hopper 7. The control unit of the control base 1 controls the grinding mill 6 to grind and crush the soil.

[0041] Vibration parameters (frequency and amplitude) are input through the external physical control buttons and the touch screen 3, and the control unit controls the vibration motor 4 to start and drive the vibration tray 9 to perform vibration screening;

[0042] After being ground, the soil sample flows downward through the single-tube spiral guide channel 13 and falls into the uppermost screening channel with larger diameter sieve holes in the multi-layered spiral screening ring 14. The soil is screened step by step downward along the spiral channel according to the sliding slope, vibration parameters, and screening aperture constrained by the predetermined screening efficiency standard rules, as well as the real-time monitoring of the screening efficiency and the adjustment of the vibration parameters.

[0043] After screening through the channel, at the discharge port of the multi-layered spiral screening ring 14, the recovery duct 18 extending in a step-like decreasing manner through the screening channel is led out for classification and collection, and the soil screened through the bottom screening channel falls into the storage cavity 19 below which is surrounded by the lower part of the box shell and the vibration tray.

[0044] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do 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 limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0045] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0046] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A soil vibration screening instrument, comprising a control unit configured with a plurality of physical control buttons and a touch screen, a vibration motor electrically connected to the control unit, and a vibration screening box connected to the vibration motor, characterized in that: The vibration screening box includes a vibration adjustment frame and a multi-layered spiral screening assembly; The vibration adjustment frame includes a vibration tray, a screw, a center column and a fixing ring. The bottom of the vibration tray is connected to the vibration motor. The center of the vibration tray is provided with an upwardly extending center column and at least three upwardly extending screws are evenly arranged along the circumference with the center column as the center. The fixing ring is passed through and fixed to the top of the screw. The multi-layered spiral screening assembly includes a single-tube spiral guide channel and a multi-layered spiral screening ring connected from top to bottom. The single-tube spiral guide channel is spirally arranged in the annular space between the fixed ring and the center column and is fixedly connected to the top of the center column. The multi-layered spiral screening ring is spiral-shaped, the inner side of the channel is sleeved and connected to the center column, and the outer side of the channel can be adjusted up and down and connected to the screw.

2. The soil vibration screening instrument according to claim 1, characterized in that: The multi-layered spiral screening ring is provided with at least three layers of screening channels with screen hole diameters decreasing from top to bottom. An adjustable length telescopic sleeve is provided between adjacent multi-layered spiral screening rings on the same screw, and an adjusting spring is provided between adjacent screening channels.

3. The soil vibration screening instrument according to claim 2, characterized in that: At the discharge port of the multi-layered spiral screening ring, the screening channels extend in a step-like decreasing manner, and each of the screening channels is connected to a recovery conduit.

4. The soil vibration screening instrument according to claim 3, characterized in that: The vibration screening box also includes a box shell mounted on the vibration adjustment frame, and the lower part of the box shell and the vibration tray together form a bottom storage cavity; the outer side of the screening channel and the inner side of the box shell are squeezed and sealed by a sealing strip, and the discharge port of the recovery duct is passed through the side wall of the box shell.

5. The soil vibration screening instrument according to claim 4, characterized in that: A support block is provided on the upper side wall of the central column, and the support block is supported on the lower outer side of the discharge port of the single-tube spiral guide channel and is fixedly connected to the side end face of the feed port of the multi-layered spiral screening ring.

6. The soil vibration screening instrument according to claim 2, characterized in that: The inner side of the spiral of the multi-layered spiral screening ring is connected to the side surface of the central column through a plastic elastic strip.

7. The soil vibration screening instrument according to claim 1, characterized in that: The cross section of the screening channel of the multi-layered spiral screening ring is semicircular or arc-shaped.

8. The soil vibration screening instrument according to claim 1, characterized in that: A mill and a material hopper connected to the mill are connected above the single-tube spiral guide channel. The mill is arranged on the control seat through a plurality of vertical support rods and is electrically connected to the control unit.

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