Soil screening equipment for soil detection

Abstract

The utility model discloses soil screening equipment for soil detection, which comprises a box body, the top of the box body is provided with a feed port, the upper end in the box body is provided with a grinding cavity corresponding to the feed port, the lower side of the grinding cavity is provided with a discharge port, the discharge port is provided with a screening groove inclining rightwards from top to bottom, and the front side and the rear side of the screening groove are respectively provided with a striker plate. A material collecting groove is formed in the position, corresponding to the lower portion of the screen groove, of the bottom of the box body, an inclined face inclining downwards from right to left is arranged at the bottom of the material collecting groove, a screen is inserted into the position, corresponding to the tail end of the lower side of the screen groove, of the upper end of the right side of the material collecting groove, and vibration motors are arranged at the positions of the screen groove and the screen respectively. A discharging opening is formed in the position, corresponding to the material collecting groove, of the left side wall of the box body, the left side of the inclined face corresponds to the discharging opening, and a cover plate is hinged to the discharging opening; and due to secondary screening of the screen, the soil samples falling into the screen are screened into the material collecting groove again, so that the screening effect is greatly improved, and the screening efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of screening equipment, in particular to soil screening equipment for soil detection. Background Art

[0002] Soil is a natural body composed of layers of mineral components of varying thicknesses. It is a mixture of minerals and organic matter and exists in solid, gaseous and liquid states. Soil pollutant detection requires on-site soil collection. The collected soil may contain some impurities, so the collected soil needs to be pre-treated. The collected soil needs to be air-dried, impurities screened out, crushed and ground to obtain dry soil with smaller particle size.

[0003] Utility model patent CN213254699U discloses a soil screening device for soil testing, including a screening box and a grinding motor, a belt conveyor mechanism is provided at the upper end of the screening box, a first material baffle plate is obliquely provided at the feeding end of the belt conveyor mechanism, a drying fan is provided at the end of the belt conveyor mechanism away from the first material baffle plate, a first filter screen is obliquely provided below the belt conveyor mechanism, a grinding device is provided below the first filter screen, the grinding device includes two grinding rollers that cooperate with each other, a second material baffle plate is obliquely provided between the first filter screen and the grinding roller, a second filter screen is obliquely provided below the grinding roller, a material guide plate is obliquely provided below the second filter screen, a discharge port is provided on the side of the bottom end of the screening box, the material guide plate corresponds to the discharge port, and a vibration device is provided at the bottom of the screening box.

[0004] The ground soil is slid down through the inclined second filter screen to be screened. Although this method can screen out soil with a particle size that meets the requirements, the gravity sliding screening easily leads to incomplete soil screening, and some of the soil that meets the requirements is not screened out and flows into the second collection box, which greatly reduces the screening effect. Utility Model Content

[0005] In view of the technical problems in the above-mentioned prior art, the utility model provides a soil screening device for soil testing, aiming to solve the above-mentioned problems.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A soil screening device for soil testing comprises a box body, a feed inlet is provided on the top of the box body, a grinding chamber is provided at the upper end of the box body corresponding to the feed inlet, a feed discharge port is provided at the lower side of the grinding chamber, a screen slot inclined to the right from top to bottom is provided at the feed discharge port, an aggregate trough is provided at the bottom of the box body corresponding to the sieve slot just below, a screen is inserted at the upper right end of the aggregate trough corresponding to the lower end of the sieve slot, a vibration motor is provided at the sieve slot and the screen respectively, a taking port is provided at the right side wall of the box body corresponding to the screen, a discharge port is provided at the left side wall of the box body corresponding to the aggregate trough, and a cover plate is hinged at the discharge port.

[0008] Preferably, two grinding rollers are transversely arranged inside the grinding chamber, the two grinding rollers are arranged on the same horizontal plane, and the surfaces are abutted against each other, the two ends of the two grinding rollers are respectively inserted into the grinding chamber and rotatably connected thereto, a motor is fixedly arranged on the right side outside the grinding chamber corresponding to one of the grinding rollers, the driving end of the motor is drivingly connected to the grinding roller, and gears meshing with each other are respectively fixedly arranged on the left sides of the two grinding rollers.

[0009] Preferably, a conical collecting trough is provided at the lower side of the grinding chamber corresponding to the feed opening.

[0010] Preferably, a matching inverted U-shaped plug-in block is provided on the right side of the screen corresponding to the right side wall of the aggregate trough, and the inverted U-shaped plug-in block can be inserted on the right side wall of the aggregate trough.

[0011] Preferably, a handle is provided on the upper side of the inverted U-shaped insertion block.

[0012] Preferably, a slope sloping downward from right to left is provided at the bottom of the aggregate trough, and the left side of the slope corresponds to the discharge port.

[0013] Preferably, material baffles are provided on the front and rear sides of the sieve slot, respectively.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model provides a soil screening device for soil testing. The dried soil sample is put into the grinding chamber from the feed port, and is ground by two grinding rollers. The ground soil enters the screen slot through the feed port, and is vibrated and screened by a vibration motor. The qualified soil falls into the aggregate slot through the mesh of the screen slot, and the unqualified soil or impurities are vibrated and slide into the screen. Since the qualified soil sample will inevitably enter the screen during the sliding process, the vibration motor at the screen is used for secondary screening, and the qualified soil sample falling into the screen is screened into the aggregate slot again, which greatly increases the screening effect and improves the screening efficiency. The qualified soil sample after screening slides to the discharge port through the inclined surface for collection, and the unqualified impurities falling into the screen after screening are regularly cleaned through the taking port to avoid affecting the subsequent screening effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front cross-sectional schematic diagram of a soil screening device for soil testing according to the utility model;

[0017] Figure 2 It is a schematic top view and cross-sectional view of a grinding chamber of a soil screening device for soil testing described in the utility model.

[0018] In the figure: 1. Box body; 11. Feed inlet; 12. Removal port; 13. Discharge port; 14. Cover plate; 2. Grinding chamber; 21. Discharge port; 22. Grinding roller; 23. Motor; 24. Gear; 25. Conical aggregate trough; 3. Screen trough; 31. Baffle plate; 4. Aggregate trough; 41. Inclined surface; 5. Screen; 51. Inverted U-shaped plug-in block; 52. Handle; 6. Vibration motor. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-2In the embodiment proposed in the present application, a soil screening device for soil detection is provided, comprising a box body 1, a feed inlet 11 is provided on the top of the box body 1, a grinding chamber 2 is provided at the upper end of the box body 1 corresponding to the feed inlet 11, a feed outlet 21 is provided at the lower side of the grinding chamber 2, a screen slot 3 inclined from top to bottom to the right is provided at the feed outlet 21, a baffle plate 31 is provided at the front and rear sides of the screen slot 3, a collection slot 4 is provided at the bottom of the box body 1 corresponding to the bottom of the screen slot 3, and a bottom of the collection slot 4 is provided from right to left. The left inclined surface 41 is downwardly inclined, and blocks the soil in the process of sliding downward, preventing it from falling from the side wall. A screen 5 is inserted at the lower end of the sieve slot 3 corresponding to the upper right end of the aggregate trough 4. A vibration motor 6 is respectively provided at the sieve slot 3 and the sieve 5. A taking port 12 is provided at the right side wall of the box body 1 corresponding to the sieve 5. A discharge port 13 is provided at the left side wall of the box body 1 corresponding to the aggregate trough 4. The left side of the inclined surface 41 corresponds to the discharge port 13, and a cover plate 14 is hinged at the discharge port 13.

[0021] The dried soil sample is put into the grinding chamber 2 from the feed port 11 and ground. The ground soil enters the sieve slot 3 through the discharge port 21 and is vibrated and screened by the vibration motor 6. The qualified soil will fall into the aggregate trough 4 through the mesh of the sieve slot 3, and the unqualified soil or impurities will slide into the sieve 5 by vibration. Since the qualified soil sample will inevitably enter the sieve 5 during the sliding process, the vibration motor 6 at the sieve 5 is used for secondary screening, and the qualified soil sample falling into the sieve 5 is screened into the aggregate trough 4 again, which greatly increases the screening effect and improves the screening efficiency.

[0022] In another embodiment, see Figure 1-2 Two grinding rollers 22 are transversely arranged inside the grinding chamber 2. The two grinding rollers 22 are arranged on the same horizontal plane, and their surfaces are in contact with each other. The two ends of the two grinding rollers 22 are respectively inserted into the grinding chamber 2 and are rotatably connected thereto. A motor 23 is fixedly arranged on the right side outside the grinding chamber 2 corresponding to one of the grinding rollers. The driving end of the motor 23 is drivingly connected to the grinding roller 22. Gears 24 meshing with each other are fixedly arranged on the left sides of the two grinding rollers 22. A conical collecting trough 25 is arranged at the lower side of the grinding chamber 2 corresponding to the discharge port 21.

[0023] The soil sample entering the grinding chamber 2 is ground by two grinding rollers 22 driven by a motor 23, and the ground soil is collected to a discharge port 21 through a conical collecting trough 25 for easy discharge to the next process.

[0024] In another embodiment, see Figure 1-2A matching inverted U-shaped plug-in block 51 is provided on the right side of the screen 5 corresponding to the right side wall of the aggregate trough 4. The inverted U-shaped plug-in block 51 can be inserted into the right side wall of the aggregate trough 4, and a handle 52 is provided on the upper side of the inverted U-shaped plug-in block 51; when it is necessary to clean the impurities in the screen 5, only the handle 52 needs to be lifted by hand to remove the inverted U-shaped plug-in block 51 from the right side wall of the aggregate trough, thereby facilitating the cleaning of internal impurities. During installation, only the inverted U-shaped plug-in block 51 needs to be inserted into the right side wall of the inverted aggregate trough 4 to fix it, which is convenient and quick.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0026] In the description of the present invention, unless otherwise specified, "plurality" means two or more; the terms "upper", "lower", "left", "right", "inside", "outside", "front end", "rear end", "head", "tail", etc. indicate directions or positional relationships based on the directions 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 referred device or element must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A soil screening device for soil testing, comprising a housing (1), characterized in that: The box body (1) is provided with a feed inlet (11) at the top, a grinding chamber (2) is provided at the upper end of the box body (1) corresponding to the feed inlet (11), a discharge port (21) is provided at the lower side of the grinding chamber (2), a sieve slot (3) inclined from top to bottom to the right is provided at the discharge port (21), a collection slot (4) is provided at the bottom of the box body (1) corresponding to the sieve slot (3) directly below, a sieve (5) is inserted at the upper right end of the collection slot (4) corresponding to the lower end of the sieve slot (3), a vibration motor (6) is provided at the sieve slot (3) and the sieve slot (5), respectively, a taking port (12) is provided at the right side wall of the box body (1) corresponding to the sieve slot (5), a discharge port (13) is provided at the left side wall of the box body (1) corresponding to the collection slot (4), and a cover plate (14) is hinged at the discharge port (13).

2. A soil screening device for soil testing according to claim 1, characterized in that: Two grinding rollers (22) are transversely arranged inside the grinding chamber (2). The two grinding rollers (22) are arranged on the same horizontal plane, and their surfaces are in contact with each other. The two ends of the two grinding rollers (22) are respectively inserted into the grinding chamber (2) and are rotatably connected thereto. A motor (23) is fixedly arranged on the right side outside the grinding chamber (2) corresponding to one of the grinding rollers, and the driving end of the motor (23) is drivably connected to the grinding roller (22). Gears (24) meshing with each other are respectively fixedly arranged on the left sides of the two grinding rollers (22).

3. A soil screening device for soil testing according to claim 2, characterized in that: A conical material collecting trough (25) is provided at the lower inner side of the grinding chamber (2) corresponding to the material discharge opening (21).

4. The soil screening device for soil testing according to claim 1, characterized in that: An inverted U-shaped plug-in block (51) matching the right side of the screen (5) is provided at the right side wall of the material collecting trough (4), and the inverted U-shaped plug-in block (51) can be plugged into the right side wall of the material collecting trough (4).

5. A soil screening device for soil testing according to claim 4, characterized in that: A handle (52) is provided on the upper side of the inverted U-shaped insertion block (51).

6. The soil screening device for soil testing according to claim 1, characterized in that: The bottom of the collecting trough (4) is provided with an inclined surface (41) which slopes downward from right to left, and the left side of the inclined surface (41) corresponds to the discharge port (13).

7. The soil screening device for soil testing according to claim 1, characterized in that: The front and rear sides of the sieve slot (3) are respectively provided with material blocking plates (31).

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