Soil grinding, screening and washing system

Abstract

The present application relates to the field of soil grinding, in particular to a soil grinding, screening and cleaning system, which comprises a bottom plate, a cylinder, a grinding assembly, a blowing assembly, a grinding matching assembly, a vibrating screen and a control system; the cylinder is vertically and rotatably arranged on the bottom plate; the grinding assembly and the blowing assembly are respectively arranged on the outer walls of the two sides of the cylinder; the grinding matching assembly is slidably arranged on the bottom plate, and two sets of grinding matching assemblies are arranged; the grinding matching assembly is provided with a grinding cavity matched with the grinding assembly; the bottom and the top of the grinding channel are provided with discharge holes and feeding holes; the blowing assembly is used for air blowing and cleaning the grinding cavity; the two sets of vibrating screens are respectively located directly below the two sets of discharge holes; and the control system is arranged at the bottom of the bottom plate. The present application can simultaneously carry out soil grinding and cleaning of the grinding cavity, and does not need to wait until the grinding cavity is cleaned before starting grinding, so that the soil grinding efficiency is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of soil grinding, in particular to a soil grinding, screening and cleaning system. BACKGROUND

[0002] Soil grinding is a common soil sample pretreatment method, mainly used for grinding coarse particles in soil samples to obtain fine particle soil.

[0003] A self-cleaning soil grinder is disclosed in Chinese patent CN205462676U, in which a discharge outlet is connected to an air inlet of a dust removal device through a hose, and an air outlet is arranged on the other side of the dust removal device. A cage and a plurality of cloth bags are arranged in the body of the dust removal device, and a plurality of dust collection boxes are arranged below the cloth bags. The operation is simple, labor and material resources are saved, the processing efficiency is improved, the harm to the health of workers and the pollution of the environment caused by dust are reduced, and the practicality is high.

[0004] However, the above-mentioned disclosed scheme has the following disadvantages: different soil samples need to be cleaned after grinding before starting the grinding work of the next soil, which is low in efficiency. SUMMARY

[0005] The present application aims to solve the problem of low efficiency caused by the need to clean the machine after grinding different soil samples before starting the grinding work of the next soil in the background art, and proposes a soil grinding, screening and cleaning system.

[0006] In one aspect, the present application provides a soil grinding, screening and cleaning system, which comprises a bottom plate, a cylinder, a grinding assembly, a blowing assembly, a grinding matching assembly, a vibrating screen and a control system.

[0007] A plurality of support legs are arranged at the bottom of the bottom plate, the cylinder is vertically and rotatably arranged on the bottom plate, and a power assembly for driving the rotation of the cylinder is arranged on the bottom plate. The grinding assembly and the blowing assembly are arranged on the outer walls on both sides of the cylinder, respectively. The grinding matching assembly is slidably arranged on the bottom plate, and two sets of grinding matching assemblies are arranged. The sliding directions of the two sets of grinding matching assemblies are towards or away from the cylinder. The grinding matching assembly is provided with a grinding cavity matched with the grinding assembly. In the grinding state, the grinding body of the grinding assembly is inserted into the grinding cavity and forms a grinding channel between the inner wall of the grinding cavity. The bottom and top of the grinding channel are provided with discharge holes and feeding holes, respectively. The blowing assembly is used for air blowing and cleaning of the grinding cavity. Two sets of vibrating screens are arranged on the bottom plate, and the two sets of vibrating screens are located directly below the two sets of discharge holes, respectively. The control system is arranged at the bottom of the bottom plate, and the control system is connected with the grinding assembly, the blowing assembly, the vibrating screen and the grinding matching assembly.

[0008] Preferably, a feeding cone is arranged at the top of the feeding hole, and a discharging cone is arranged at the bottom of the discharge hole.

[0009] Preferably, the power assembly comprises gear a, gear b, support rod and rack; gear a is arranged on the outer circumferential wall of the barrel body; the support rod is vertically and rotatably arranged on the bottom plate, gear b is arranged on the support rod, and gear b is engaged with gear a; the rack is slidably arranged on the bottom plate, the bottom plate is provided with an extension device a for driving the rack to move, and the rack is engaged with gear b.

[0010] Preferably, the grinding assembly comprises mounting seat a, motor a, rotating shaft, support frame and grinding column; the mounting seat a is arranged on the outer circumferential wall of the barrel body; the motor a is arranged on the mounting seat a, the output shaft of the motor a is connected with the rotating shaft, the support frame is arranged on the mounting seat a, and the support frame is provided with a bearing seat through which the rotating shaft passes; the grinding column is arranged at the end of the rotating shaft, the grinding column is inserted into the grinding cavity in cooperation, the end of the grinding column is hemispherical, and the inner circumferential surface of the retaining ring arranged on the inner wall of the grinding cavity is in contact with the outer circumferential surface of the grinding column.

[0011] Preferably, the blowing assembly comprises mounting seat b, straight pipe, cavity column, rotary joint a, connecting pipe a, rotary joint b, connecting pipe b, air compressor and flat plate; the mounting seat b is arranged on the outer circumferential wall of the barrel body; the straight pipe is horizontally and rotatably arranged on and passes through the mounting seat b, and the mounting seat b is provided with a rotating assembly for driving the straight pipe to rotate; the cavity column is arranged at the end of the straight pipe, a plurality of air outlet holes are arranged on the cavity column, the cavity column has the same outer shape and size as the grinding column and is inserted into the grinding cavity in cooperation, a retaining ring is arranged in the grinding cavity, and the inner circumferential surface of the retaining ring is in contact with the outer circumferential surface of the cavity column; the rotary joint a is arranged on the inner circumferential wall of the barrel body, the rotating end of the rotary joint a is connected with the straight pipe, the fixed end of the rotary joint a is connected with the horizontal section of the connecting pipe a, the vertical section of the connecting pipe a is connected with the rotating end of the rotary joint b, the fixed end of the rotary joint b is connected with the connecting pipe b, the rotary joint b is arranged on the flat plate, the bottom of the flat plate is connected with the bottom plate through a plurality of support columns, and the flat plate is provided with two groups of through holes opposite to the grinding assembly; the air compressor is arranged on the flat plate, and the output end of the air compressor is connected with the connecting pipe b.

[0012] Preferably, the rotating assembly comprises gear c, motor b, gear d and mounting seat c; the mounting seat c is arranged on the mounting seat b, the motor b is arranged on the mounting seat c, the gear c is arranged on the output shaft of the motor b, and the gear d is arranged on the straight pipe and engaged with the gear c.

[0013] Preferably, the bottom plate is provided with a conductive slip ring, the conductive slip ring is located at the center position of the barrel body, the conductive slip ring is a multi-channel slip ring, the motor a and the motor b are connected with the conductive slip ring through photoelectric combined cables, and the fixed end of the conductive slip ring is connected with the control system through a lead wire.

[0014] Preferably, the grinding assembly comprises a sliding plate, an extension device b and a grinding body; the sliding plate is arranged on the base plate in transverse sliding mode; the extension device b is arranged on the base plate in transverse mode, and the extension end of the extension device b is connected with the sliding plate; the grinding body is arranged on the top of the sliding plate, the grinding cavity is arranged on the grinding body and forms an opening on the end face of the grinding body facing the grinding column, and the feeding hole and the discharging hole are respectively formed on the upper and lower surfaces of the grinding body; the two sets of grinding assemblies are symmetrically arranged about the cylinder.

[0015] In another aspect, the application provides a method for using the soil grinding, screening and cleaning system, comprising the following steps:

[0016] S1, the soil sample enters the grinding body through the feeding hole, is ground by the rotating grinding column, and then falls on the vibrating screen through the discharging hole, and the fine particle soil of the required size is obtained after screening by the vibrating screen;

[0017] S2, the two sets of extension devices b drive the two sets of sliding plates and grinding bodies to move away from the cylinder, so that the grinding column and the cavity column are separated from the grinding cavity;

[0018] S3, the power assembly drives the cylinder to rotate by one hundred and eighty degrees, and the two sets of extension devices b drive the two sets of sliding plates and grinding bodies to move close to the cylinder, so that the grinding column and the cavity column are exchanged and inserted into the two sets of grinding cavities;

[0019] S4, the air compressor is started, one of the extension devices b is extended back and forth in a small range, air is blown to the inner wall of the grinding cavity through the air outlet hole, so that the soil adhered to the grinding cavity is cleaned, and the other set of grinding bodies performs soil grinding work.

[0020] Compared with the prior art, the application has the following beneficial technical effects: by arranging two sets of grinding assemblies, soil grinding and air blowing cleaning of the grinding cavity are carried out at the same time, when the soil sample is replaced for grinding, only one hundred and eighty degrees of rotation of the cylinder is needed, so that the two sets of grinding assemblies are exchanged and matched with the grinding assembly and the blowing assembly, and the next soil grinding work can be quickly carried out, without waiting for the completion of the cleaning of the grinding cavity before starting the grinding, so that the soil grinding efficiency is high. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The structure schematic diagram of an embodiment of the application;

[0022] Figure 2 The rear view of Figure 1 ;

[0023] Figure 3 The front view of Figure 1 ;

[0024] Figure 4 The enlarged schematic view of A in Figure 2 ;

[0025] Figure 5 For Figure 3 enlarged view of B in FIG. 1.

[0026] Reference signs: 1, bottom plate; 2, support leg; 3, cylinder; 4, gear a; 5, gear b; 6, support rod; 7, rack; 8, telescopic device a; 9, mounting seat a; 10, motor a; 11, rotating shaft; 12, support frame; 13, bearing seat; 14, grinding column; 15, mounting seat b; 16, straight pipe; 17, cavity column; 18, air outlet hole; 19, blocking ring; 20, gear c; 21, motor b; 22, gear d; 23, mounting seat c; 24, rotary joint a; 25, connecting pipe a; 26, rotary joint b; 27, connecting pipe b; 28, air compressor; 29, conductive slip ring; 30, sliding plate; 31, telescopic device b; 32, grinding body; 33, discharge hole; 34, feeding hole; 35, feeding cone hopper; 36, discharge cone hopper; 37, vibrating screen; 38, flat plate; 39, support column; 40, through hole; 41, control system. DETAILED DESCRIPTION

[0027] Example one

[0028] As Figures 1-2 shown in FIG. 1, the soil grinding and screening cleaning system comprises a bottom plate 1, a cylinder 3, a grinding assembly, a blowing assembly, a grinding matching assembly, a vibrating screen 37 and a control system 41.

[0029] A plurality of groups of support legs 2 are arranged at the bottom of the bottom plate 1, the cylinder 3 is vertically and rotatably arranged on the bottom plate 1, a power assembly for driving the cylinder 3 to rotate is arranged on the bottom plate 1, and the power assembly comprises a gear a 4, a gear b 5, a support rod 6 and a rack 7; the gear a 4 is arranged on the outer circumferential wall at the bottom of the cylinder 3; the support rod 6 is vertically and rotatably arranged on the bottom plate 1, the gear b 5 is arranged on the support rod 6, and the gear b 5 is engaged with the gear a 4; the rack 7 is slidably arranged on the bottom plate 1, the bottom plate 1 is provided with a telescopic device a 8 for driving the rack 7 to move, and the rack 7 is engaged with the gear b 5; the grinding assembly and the blowing assembly are respectively arranged on the outer walls on both sides of the cylinder 3, the grinding matching assembly is slidably arranged on the bottom plate 1, and two groups of the grinding matching assembly are arranged, the sliding directions of the two groups of the grinding matching assembly are towards or away from the cylinder 3, the grinding matching assembly is provided with a grinding cavity matched with the grinding assembly, in the grinding state, the grinding body of the grinding assembly is matched and inserted into the grinding cavity to form a grinding channel between the grinding cavity and the inner wall of the grinding cavity, the bottom and the top of the grinding channel are provided with a discharge hole 33 and a feeding hole 34, the top of the feeding hole 34 is provided with a feeding cone hopper 35, the bottom of the discharge hole 33 is provided with a discharge cone hopper 36, and the blowing assembly is used for jetting and blowing the grinding cavity; two groups of the vibrating screen 37 are arranged on the bottom plate 1, and the two groups of the vibrating screen 37 are respectively located directly below the two groups of the discharge hole 33; the control system 41 is arranged at the bottom of the bottom plate 1, and the control system is in control connection with the grinding assembly, the blowing assembly, the vibrating screen 37 and the grinding matching assembly.

[0030] Working principle: the soil sample is put into the soil grinding body 32 through the feeding hole 34, and after being ground by the grinding assembly, it falls onto the vibrating screen 37 through the discharge hole 33, and the fine particle soil of the required size is obtained after being screened by the vibrating screen. After the grinding is completed, the two sets of grinding matching assemblies are away from the barrel 3 and are separated from the grinding assembly, and then the power assembly drives the barrel 3 to rotate by 180 degrees, and the two sets of grinding matching assemblies are close to the barrel 3 again, so that the two sets of grinding assemblies are exchanged and inserted into the two sets of grinding cavities. Then the blowing assembly works, and the blown grinding matching assembly moves back and forth in a small range, and the soil attached to the grinding cavity is cleaned by the blowing assembly, and at the same time, the other set of grinding assembly performs soil grinding work.

[0031] In this embodiment, by arranging two sets of grinding matching assemblies, the soil is ground while the grinding cavity is blown and cleaned, and when the soil sample is replaced for grinding, only the barrel 3 needs to be rotated by 180 degrees, and the two sets of grinding matching assemblies are exchanged and matched with the grinding assembly and the blowing assembly, so that the next soil grinding work can be quickly performed, and the soil grinding efficiency is high.

[0032] Embodiment two

[0033] As shown in the figure, the soil grinding and screening cleaning system provided by the application comprises a barrel 3, a bottom plate 1, a power assembly, a blowing assembly, a grinding assembly and a vibrating screen 37. Figure 1 As shown in the figure, the soil grinding and screening cleaning system provided by the application comprises a barrel 3, a bottom plate 1, a power assembly, a blowing assembly, a grinding assembly and a vibrating screen 37.

[0034] As shown in the figure, the soil grinding and screening cleaning system provided by the application comprises a barrel 3, a bottom plate 1, a power assembly, a blowing assembly, a grinding assembly and a vibrating screen 37. Figure 3 As shown in the figure, the soil grinding and screening cleaning system provided by the application comprises a barrel 3, a bottom plate 1, a power assembly, a blowing assembly, a grinding assembly and a vibrating screen 37.

[0035] In this embodiment, the motor a10 drives the rotating shaft 11 to rotate, and the rotating shaft 11 drives the grinding column 14 to rotate, and the grinding channel is formed by the cooperation of the grinding column 14 and the grinding cavity. The soil sample is ground by the rotating grinding column 14 in the grinding channel and then falls through the discharge hole 33. The arrangement of the conductive slip ring 29 can smoothly transmit electric energy and control signals to the motor a10 while the barrel 3 is rotating.

[0036] Embodiment three

[0037] As shown in Figure 1 and Figure 5 , the soil grinding and screening cleaning system proposed by the present application, compared with embodiment one, the blowing assembly includes mounting seat b15, straight pipe 16, cavity column 17, rotary joint a24, connecting pipe a25, rotary joint b26, connecting pipe b27, air compressor 28 and flat plate 38; the mounting seat b15 is arranged on the outer peripheral wall of the cylinder body 3; the straight pipe 16 is horizontally and rotationally arranged on and penetrates through the mounting seat b15, and the mounting seat b15 is provided with a rotating assembly for driving the straight pipe 16 to rotate; the cavity column 17 is arranged at the end of the straight pipe 16, a plurality of air outlet holes 18 are arranged on the cavity column 17, the cavity column 17 has the same outer shape and size as the grinding column 14 and is inserted into the grinding cavity in cooperation, and a blocking ring 19 is arranged in the grinding cavity, and the inner peripheral surface of the blocking ring 19 is in contact with the outer peripheral surface of the cavity column 17; the rotary joint a24 is arranged on the inner peripheral wall of the cylinder body 3, the rotating end of the rotary joint a24 is connected with the straight pipe 16, the fixed end of the rotary joint a24 is connected with the horizontal section of the connecting pipe a25, the vertical section of the connecting pipe a25 is connected with the rotating end of the rotary joint b26, the fixed end of the rotary joint b26 is connected with the connecting pipe b27, the rotary joint b26 is arranged on the flat plate 38, the bottom of the flat plate 38 is connected with the bottom plate 1 through a plurality of supporting columns 39, and two groups of through holes 40 opposite to the grinding and cooperating assembly are arranged on the flat plate 38; the air compressor 28 is arranged on the flat plate 38, and the output end of the air compressor 28 is connected with the connecting pipe b27.

[0038] As shown in Figure 4 , the rotating assembly includes gear c20, motor b21, gear d22 and mounting seat c23; the mounting seat c23 is arranged on the mounting seat b15, the motor b21 is arranged on the mounting seat c23, the gear c20 is arranged on the output shaft of the motor b21, and the gear d22 is arranged on the straight pipe 16, and the gear d22 is engaged with the gear c20.

[0039] As shown in Figure 3 , the bottom plate 1 is provided with a conductive slip ring 29, the conductive slip ring 29 is located at the center position of the cylinder body 3, the conductive slip ring 29 is a multi-channel slip ring, the motor b21 is connected with the conductive slip ring 29 through an optical and electrical combined cable, and the fixed end of the conductive slip ring 29 is connected with the control system 41 through a lead wire.

[0040] In this embodiment, air is supplied into the connecting pipe a25 through the air compressor 28 and the connecting pipe b27, the rotary joint b26 can ensure normal air supply when the cylinder body 3 rotates, the connecting pipe a25 supplies air into the straight pipe 16 through the rotary joint a24, and finally the air is sprayed out through the air outlet holes 18 on the cavity column 17 to blow and clean the inner wall of the grinding cavity, and the cleaning process and the grinding work of the other group of grinding columns 14 are carried out at the same time, which helps to improve the grinding and cleaning efficiency of different soils.

[0041] Embodiment Four

[0042] As shown in Figure 1 embodiment one or embodiment two or embodiment three, the grinding assembly comprises a sliding plate 30, a telescopic device b31 and a grinding body 32; the sliding plate 30 is arranged on the bottom plate 1 in transverse sliding manner; the telescopic device b31 is arranged on the bottom plate 1 in transverse manner, and the telescopic end of the telescopic device b31 is connected with the sliding plate 30; the grinding body 32 is arranged on the top of the sliding plate 30, a grinding cavity is arranged on the grinding body 32 and an opening is formed on the end surface of the grinding body 32 which faces the grinding column 14, and an inlet hole 34 and an outlet hole 33 are respectively formed on the upper and lower surfaces of the grinding body 32; the two sets of grinding assemblies are symmetrical about the cylinder 3.

[0043] In this embodiment, the telescopic device b31 is retracted to drive the grinding body 32 to disengage from the grinding column 14 or the cavity column 17, then the cylinder 3 can be rotated by one hundred and eighty degrees, and the telescopic device b31 is extended again to cooperate with the grinding body 32 and the grinding column 14, and the soil grinding and cleaning work of the grinding cavity can be performed at the same time.

[0044] Embodiment Five

[0045] Based on the use method of the above-mentioned soil grinding and screening cleaning system, the following steps are included:

[0046] S1, the soil sample is fed into the grinding body 32 through the inlet hole 34, and after being ground by the rotating grinding column 14, it falls onto the vibrating screen 37 through the outlet hole 33, and the fine particle soil of the required size is obtained after being screened by the vibrating screen;

[0047] S2, the two sets of telescopic devices b31 drive the two sets of sliding plates 30 and grinding bodies 32 to move away from the cylinder 3, so that the grinding column 14 and the cavity column 17 disengage from the grinding cavity;

[0048] S3, the power assembly drives the cylinder 3 to rotate by one hundred and eighty degrees, and the two sets of telescopic devices b31 drive the two sets of sliding plates 30 and grinding bodies 32 to move close to the cylinder 3, so that the grinding column 14 and the cavity column 17 are exchanged and inserted into the two sets of grinding cavities;

[0049] S4, the air compressor 28 is started, one of the telescopic devices b31 is telescopically extended and retracted in a small range, air is blown to the inner wall of the grinding cavity through the air outlet hole 18 to clean the soil attached to the grinding cavity, and the other grinding body 32 performs soil grinding work.

[0050] In the embodiment, two sets of grinding cooperation assemblies are arranged, soil grinding is carried out at the same time as air blowing cleaning of the grinding cavity is carried out, when soil samples are replaced for grinding, only 180 degrees rotation of the cylinder 3 is needed, the two sets of grinding cooperation assemblies are exchanged with the grinding assembly and the blowing assembly for cooperation, and the next soil grinding work can be quickly carried out, and soil grinding efficiency is high.

[0051] The embodiments of the application are described in detail above with reference to the drawings, but the application is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the application.

Claims

1. A soil grinding, screening, and washing system, characterized in that, It includes a base plate (1), a cylinder (3), a grinding assembly, a purging assembly, a grinding mating assembly, a vibrating screen (37), and a control system (41); The bottom of the base plate (1) is provided with multiple sets of support legs (2), and the cylinder (3) is vertically and rotatably mounted on the base plate (1). The base plate (1) is provided with a power assembly that drives the cylinder (3) to rotate. The grinding assembly and the blowing assembly are respectively mounted on the outer walls of both sides of the cylinder (3). The grinding mating assembly is slidably mounted on the base plate (1). There are two sets of grinding mating assemblies. The sliding direction of the two sets of grinding mating assemblies is closer to or further away from the cylinder (3). The grinding mating assembly is provided with a grinding chamber that mates with the grinding assembly. In the grinding state, the grinding body of the grinding assembly is inserted into the grinding chamber and forms a grinding channel between it and the inner wall of the grinding chamber. The bottom and top of the grinding channel are provided with discharge holes (33) and feed holes (34). The blowing assembly is used to blow air into the grinding chamber. Two sets of vibrating screens (37) are provided on the base plate (1). The two sets of vibrating screens (37) are located directly below the two sets of discharge holes (33). The control system The system (41) is set at the bottom of the base plate (1). The control system is connected to the grinding assembly, the blowing assembly, the vibrating screen (37) and the grinding mating assembly. The grinding assembly includes a mounting base a (9), a motor a (10), a rotating shaft (11), a support frame (12) and a grinding column (14). The mounting base a (9) is set on the outer peripheral wall of the cylinder (3). The motor a (10) is set on the mounting base a (9). The output shaft of the motor a (10) is connected to the rotating shaft (11). The support frame (12) is set on the mounting base a (9). The support frame (12) is provided with a bearing seat (13) for the rotating shaft (11) to pass through. The grinding column (14) is set at the end of the rotating shaft (11). The grinding column (14) is inserted into the grinding chamber. The end of the grinding column (14) is hemispherical. A retaining ring (19) is set on the inner wall of the grinding chamber. The inner peripheral surface of the retaining ring (19) is in contact with the outer peripheral surface of the grinding column (14). The purging assembly includes a mounting base b (15), a straight pipe (16), a cavity column (17), a rotary joint a (24), a connecting pipe a (25), a rotary joint b (26), a connecting pipe b (27), an air compressor (28), and a flat plate (38); the mounting base b (15) is set on the outer peripheral wall of the cylinder (3); the straight pipe (16) is horizontally and rotatably set on the mounting base b (15) and passes through the mounting base b (15), and the mounting base b (15) is provided with a rotating assembly that drives the straight pipe (16) to rotate; the cavity column (17) is set at the end of the straight pipe (16), and multiple sets of air outlets (18) are provided on the cavity column (17). The cavity column (17) and the grinding column (14) have the same external dimensions and are fitted into the grinding chamber. A retaining ring (19) is set in the grinding chamber, and the inner circumference of the retaining ring (19) is... The surface is in contact with the outer circumferential surface of the cavity column (17); the rotary joint a (24) is set on the inner circumferential wall of the cylinder (3), the rotating end of the rotary joint a (24) is connected to the straight pipe (16), the fixed end of the rotary joint a (24) is connected to the horizontal section of the connecting pipe a (25), the vertical section of the connecting pipe a (25) is connected to the rotating end of the rotary joint b (26), the fixed end of the rotary joint b (26) is connected to the connecting pipe b (27), the rotary joint b (26) is set on the plate (38), the bottom of the plate (38) is connected to the base plate (1) through multiple sets of support columns (39), and two sets of through holes (40) opposite to the grinding and mating components are set on the plate (38); the air compressor (28) is set on the plate (38), and the output end of the air compressor (28) is connected to the connecting pipe b (27).

2. The soil grinding, screening, and washing system according to claim 1, characterized in that, A feed cone (35) is provided at the top of the feed hole (34), and a discharge cone (36) is provided at the bottom of the discharge hole (33).

3. The soil grinding, screening, and washing system according to claim 1, characterized in that, The power assembly includes gear a (4), gear b (5), support rod (6) and rack (7); gear a (4) is set on the outer peripheral wall of the bottom of the cylinder (3); support rod (6) is vertically and rotatably set on the base plate (1), gear b (5) is set on the support rod (6), and gear b (5) meshes with gear a (4); rack (7) is slidably set on the base plate (1), and the base plate (1) is provided with a telescopic device a (8) that drives the rack (7) to move, and the rack (7) meshes with gear b (5).

4. The soil grinding, screening, and washing system according to claim 1, characterized in that, The rotating assembly includes gear c (20), motor b (21), gear d (22) and mounting base c (23); mounting base c (23) is mounted on mounting base b (15), motor b (21) is mounted on mounting base c (23), gear c (20) is mounted on the output shaft of motor b (21), gear d (22) is mounted on straight tube (16), and gear d (22) meshes with gear c (20).

5. The soil grinding, screening, and washing system according to claim 4, characterized in that, A conductive slip ring (29) is installed on the base plate (1). The conductive slip ring (29) is located at the center of the cylinder (3). The conductive slip ring (29) is a multi-channel slip ring. Motor a (10) and motor b (21) are connected to the conductive slip ring (29) through a photoelectric combination cable. The fixed end of the conductive slip ring (29) leads out a wire and is connected to the control system (41).

6. The soil grinding, screening, and washing system according to claim 5, characterized in that, The grinding assembly includes a slide plate (30), a telescopic device b (31), and a grinding body (32); the slide plate (30) is slidably mounted on the base plate (1); the telescopic device b (31) is mounted on the base plate (1) and the telescopic end of the telescopic device b (31) is connected to the slide plate (30); the grinding body (32) is mounted on the top of the slide plate (30), the grinding chamber is mounted on the grinding body (32) and an opening is formed on the end face of the grinding body (32) facing the grinding column (14), and the feed hole (34) and the discharge hole (33) are respectively formed on the upper and lower surfaces of the grinding body (32); the two sets of grinding assemblies are symmetrical about the cylinder (3).

7. A method of using the soil grinding, screening, and washing system according to claim 6, characterized in that, Includes the following steps: S1. Soil samples are fed into the soil grinding body (32) through the feed hole (34), and after being ground by the rotating grinding column (14), they fall onto the vibrating screen (37) through the discharge hole (33). After being vibrated and screened, fine soil particles of the required size are obtained. S2, the two sets of telescopic devices b (31) drive the two sets of sliding plates (30) and grinding body (32) away from the cylinder (3), so that the grinding column (14) and the cavity column (17) are separated from the grinding cavity; S3. The power component drives the cylinder (3) to rotate 180 degrees. The two sets of telescopic devices b (31) then drive the two sets of sliding plates (30) and grinding bodies (32) to approach the cylinder (3), so that the grinding column (14) and the cavity column (17) are inserted into the two sets of grinding cavities in an alternating manner. S4. The air compressor (28) is started. One set of telescopic devices b (31) extends and retracts within a small range, blowing air through the air outlet (18) to the inner wall of the grinding chamber to clean the soil attached to the grinding chamber. At the same time, another set of grinding bodies (32) performs soil grinding work.

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