A soil sample preparation and air-drying grinding device

Abstract

The application discloses a soil sample preparation air-drying and grinding device and relates to the technical field of soil sample preparation. The device comprises a box body and a residual removal assembly. A crushing roller is rotatably connected to the upper part of the inner wall of the box body. A rotating motor is connected to the end of the crushing roller. The residual removal assembly is arranged on the side of the crushing roller. A heating pipe is embedded in the crushing roller. A brush roller is connected to one side of a transmission gear. An air suction pump is connected to the side of a filter box. A return pipe is connected to the bottom of the filter box. The soil sample preparation air-drying and grinding device is characterized in that the rotating force of the crushing roller drives the brush roller to rotate with the crushing roller to clean the residual soil. The residual soil is dried by the heating pipe and is cleaned by the brush roller. The negative air pressure generated by the air suction pump can collect the residual soil and return the residual soil to the inside of the box body through the return pipe. Thus, the residual soil on the surface of the crushing roller can be cleaned, and the total amount of the treated soil sample can be ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of soil sample preparation, in particular to a soil sample preparation and drying and grinding device. BACKGROUND

[0002] Soil sample preparation is a process of preparing soil samples, soil provides necessary nutrients for plant growth, and studying soil fertility and soil enzyme activity is an indispensable part in the field of agricultural basic science. There are four steps in measuring soil sample nutrients: soil sampling, drying, grinding and analysis. Drying and grinding are usually concentrated in one device, which is called a drying and grinding device.

[0003] Currently, when the drying and grinding device dries and grinds the soil sample, the surface of the crushing shaft of the device often has residual soil when crushing and grinding the soil, resulting in a decrease in the total amount of the sample after drying and grinding.

[0004] Therefore, in view of the above, the existing structure and deficiencies are improved, and a soil sample preparation and drying and grinding device is provided. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides a soil sample preparation and drying and grinding device to solve the problems raised in the background art.

[0006] To achieve the above purpose, the following technical scheme is used: a soil sample preparation and drying and grinding device, comprising a box body and a residual removal assembly, a crushing roller is rotatably connected to the inner wall of the upper part of the box body, and a meshing gear is arranged on the outer wall of the end of the crushing roller, a rotating motor is connected to the end of the crushing roller, the residual removal assembly is arranged on the side of the crushing roller, a heating pipe is embedded in the crushing roller, the residual removal assembly comprises a transmission gear, a brush roller, a comb tooth box, a suction head, a filter box, a suction pump, a filter screen and a return pipe, the brush roller is connected to one side of the transmission gear, and the comb tooth box is arranged on the side of the brush roller, the suction head is arranged on the inner wall of the bottom of the comb tooth box, and the filter box is connected to the end of the suction head, the suction pump is connected to the side of the filter box, and the filter screen is arranged in the filter box, and the return pipe is connected to the bottom of the filter box.

[0007] Further, the crushing roller is provided with two meshing gears, and the meshing gears on the ends of the two crushing rollers are meshed with each other.

[0008] Further, the transmission gear is meshed with the meshing gear, and the brush roller is drivingly connected with the transmission gear and the meshing gear, and the surface of the brush roller is in close contact with the surface of the crushing roller.

[0009] Further, the suction pump is connected in communication with the filter box and the suction head, and the filter box is connected in communication with the box body through the return pipe.

[0010] Further, the inner wall of the box is rotatably connected with a sleeve on both sides of the lower part, and the top of the sleeve is connected with a screening assembly through a spring, the inside of the sleeve is provided with an output shaft, and the left side of the output shaft is connected with a vibration motor, and the right side of the output shaft is connected with an eccentric wheel.

[0011] Further, the screening assembly comprises a sieve plate, a counterweight, a pull rope, a winding disc and a winding motor, one side of the bottom of the sieve plate is fixed with the counterweight, the other side of the bottom of the sieve plate is fixed with the pull rope, the bottom end of the pull rope is connected with the winding disc, and one side of the winding disc is connected with the winding motor.

[0012] Further, the sieve plate is elastically connected with the sleeve through a spring, and the surface of the sieve plate is in a mesh structure.

[0013] Further, the screening assembly further comprises a surrounding baffle and a rolling mill roller, the upper surface of the sieve plate is provided with the surrounding baffle, and the inside of the surrounding baffle is provided with the rolling mill roller.

[0014] Further, the surrounding baffle is in a "mouth" shape structure, and the rolling mill roller is attached to the inner wall of the surrounding baffle and the surface of the sieve plate.

[0015] Further, the residual removal assembly further comprises a return air pipe and a bifurcated exhaust head, the bottom of the air pump is connected with the return air pipe, and the end of the return air pipe is connected with the bifurcated exhaust head.

[0016] The present application provides a soil sample preparation and air-drying grinding device, which has the following advantages:

[0017] 1. The soil sample preparation and air-drying grinding device, the rotation of the crushing roller drives the brush roller to rotate and clean the residual soil, and the residual soil is dried by the heating pipe, which facilitates the cleaning of the brush roller, and the negative pressure generated by the air pump can collect the residual soil and return it to the inside of the box through the return pipe, thereby facilitating the cleaning of the residual soil on the surface of the crushing roller and ensuring that the total amount of the treated soil sample will not decrease.

[0018] 2. The soil sample preparation and air-drying grinding device, the continuous rotation of the sieve plate at both ends can make the soil evenly distributed, so that the surface of the sieve plate is fully utilized for screening operation, and at the same time, the sieve plate will vibrate to make the soil on its surface evenly distributed on the surface of the sieve plate, which is also convenient for the soil to pass through the sieve plate for screening under the action of vibration.

[0019] 3. The soil sample preparation and air-drying grinding device, the rolling mill roller inside the surrounding baffle is affected by gravity and rolls on the surface of the sieve plate towards the lower end, thereby crushing the soil on the surface of the sieve plate, which is beneficial to crushing the large particle soil remaining on the surface of the sieve plate again, thereby avoiding the blockage of the sieve hole caused by the accumulation of large particle soil on the surface of the sieve plate.

[0020] 4. The soil sample preparation and drying device, hot air is sprayed from the bifurcated exhaust head in the form of air flow to the surface of the sieve plate and the surface of the crushing roller, thereby drying the crushed soil and the residual soil on the surface of the crushing roller, which is conducive to accelerating the drying speed of the soil to be treated. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 Figure 1 is a schematic diagram of the internal structure of the box of the soil sample preparation and drying device according to the present application in front view;

[0022] Figure 2 Figure 2 is a schematic diagram of the internal structure of the box of the soil sample preparation and drying device according to the present application in plan view;

[0023] Figure 3 Figure 3 is a schematic diagram of the soil sample preparation and drying device according to the present application; Figure 1 Figure 4 is an enlarged schematic diagram of position A in Figure 3;

[0024] Figure 4 Figure 5 is a schematic diagram of the sieve plate of the soil sample preparation and drying device according to the present application in side view;

[0025] Figure 5 Figure 6 is a schematic diagram of the sieve plate of the soil sample preparation and drying device according to the present application in plan view.

[0026] In the figure: 1, box; 2, crushing roller; 3, meshing gear; 4, rotating motor; 5, residual removal assembly; 501, transmission gear; 502, brush roller; 503, comb tooth box; 504, suction head; 505, filter box; 506, suction pump; 507, filter screen; 508, return pipe; 509, air return pipe; 510, bifurcated exhaust head; 6, heating pipe; 7, sleeve; 8, sieving assembly; 801, sieve plate; 802, counterweight; 803, pull rope; 804, winding disc; 805, winding motor; 806, enclosing baffle; 807, rolling mill roller; 9, output shaft; 10, vibration motor; 11, eccentric wheel. DETAILED DESCRIPTION

[0027] The embodiments of the present application will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0028] As Figures 1-3As shown, the present application provides technical solutions: a soil sample preparation air drying and sample grinding device, comprising a box 1 and a residual removal assembly 5, the inner wall of the box 1 is rotatably connected with a crushing roller 2, and the outer wall of the end of the crushing roller 2 is provided with a meshing gear 3, the end of the crushing roller 2 is connected with a rotating motor 4, the residual removal assembly 5 is arranged on the side of the crushing roller 2, and the inside of the crushing roller 2 is embedded with a heating pipe 6, the residual removal assembly 5 comprises a transmission gear 501, a brush roller 502, a comb tooth box 503, a suction head 504, a filter box 505, a suction pump 506, a filter screen 507 and a return pipe 508, one side of the transmission gear 501 is connected with the brush roller 502, and the side of the brush roller 502 is provided with the comb tooth box 503, the inner wall bottom of the comb tooth box 503 is provided with the suction head 504, and the end of the suction head 504 is connected with the filter box 505, the side of the filter box 505 is connected with the suction pump 506, the inside of the filter box 505 is provided with the filter screen 507, the bottom of the filter box 505 is connected with the return pipe 508, the crushing roller 2 is provided with two, the meshing gears 3 at the ends of the two crushing rollers 2 are engaged with each other, the transmission gear 501 is engaged with the meshing gear 3, and the brush roller 502 is drivingly connected with the meshing gear 3 through the transmission gear 501, and the surface of the brush roller 502 is in close contact with the surface of the crushing roller 2, the suction pump 506 is communicated with the suction head 504 through the filter box 505, and the filter box 505 is communicated with the box 1 through the return pipe 508;

[0029] The specific operation is as follows: the soil enters the inside of the box 1 from the feed hopper at the top of the box 1, any meshing gear 3 is driven to rotate by the rotating motor 4 to make the crushing roller 2 rotate, the other crushing roller 2 rotates through the structure that the two meshing gears 3 are engaged with each other, and the two crushing rollers 2 rotate towards each other to crush the soil, and the inside of the crushing roller 2 is embedded with the heating pipe 6, the heating pipe 6 heats the soil on the surface of the crushing roller 2;

[0030] When the two meshing gears 3 rotate, the transmission gear 501 is also driven to rotate to make the brush roller 502 rotate, the brush roller 502 is attached to the surface of the crushing roller 2 to clean the residual soil on the surface of the crushing roller 2, and the soil on the surface of the brush roller 502 is combed off by the combs in the comb tooth box 503 and falls into the inside of the comb tooth box 503 when the brush roller 502 rotates, then the suction pump 506 generates negative pressure at the suction head 504 to suck the soil and extract it into the inside of the filter box 505, and the air with heat around the crushing roller 2 is also extracted into the inside of the filter box 505, the hot air passes through the filter screen 507, the soil is blocked by the filter screen 507 and falls along the return pipe 508 to mix with the crushed soil in the inside of the box 1;

[0031] The rotation of the crushing roller 2 drives the brush roller 502 to rotate with the crushing roller 2 to clean the residual soil, and the residual soil is dried by the heating pipe 6, which facilitates the cleaning of the brush roller 502. The negative pressure generated by the air suction pump 506 can collect the residual soil and return it to the inside of the box 1 through the return pipe 508, thereby facilitating the cleaning of the residual soil on the surface of the crushing roller 2 and ensuring that the total amount of the processed soil sample does not decrease.

[0032] As shown in Figure 1 , Figures 4-5 , the lower part of the inner wall of the box 1 is rotatably connected with a sleeve 7 on both sides, and the top of the sleeve 7 is connected with a screening assembly 8 through a spring. The inside of the sleeve 7 is provided with an output shaft 9, and the left side of the output shaft 9 is connected with a vibration motor 10. The right side of the output shaft 9 is connected with an eccentric wheel 11. The screening assembly 8 includes a sieve plate 801, a counterweight 802, a pull rope 803, a winding disc 804, and a winding motor 805. The bottom side of the sieve plate 801 is fixed with the counterweight 802, and the other side of the bottom of the sieve plate 801 is fixed with the pull rope 803. The bottom end of the pull rope 803 is connected with the winding disc 804, and one side of the winding disc 804 is connected with the winding motor 805. The sieve plate 801 is elastically connected with the sleeve 7 through a spring, and the surface of the sieve plate 801 is in a mesh structure.

[0033] Specifically, the residual soil and the crushed soil are mixed and fall onto the surface of the sieve plate 801. The vibration motor 10 drives the output shaft 9 to rotate the eccentric wheel 11. At this time, the eccentric wheel 11 is in constant contact with the bottom of the sieve plate 801. The sieve plate 801 is elastically connected with the sleeve 7 through a spring, so that the sieve plate 801 vibrates under the action of the eccentric wheel 11.

[0034] At the same time, the winding motor 805 drives the winding disc 804 to rotate clockwise and counterclockwise, so that the pull rope 803 on the surface of the winding disc 804 can be wound and unwound. When the pull rope 803 is wound, the end of the sieve plate 801 sinks through the rotation of the sleeve 7, so that the end of the sieve plate 801 sinks and the other end rises. When the pull rope 803 is unwound, one end of the sieve plate 801 sinks due to the weight of the counterweight 802, and the other end of the sieve plate 801 rises. Thus, the two ends of the sieve plate 801 are constantly alternately raised, so that the soil is evenly distributed on the surface of the sieve plate 801.

[0035] The constant alternation of the two ends of the sieve plate 801 can make the soil evenly distributed, so that the surface of the sieve plate 801 is fully utilized for screening operation. At the same time, the sieve plate 801 also vibrates, so that the soil on the surface of the sieve plate 801 is evenly distributed on the surface of the sieve plate 801, which is convenient for the soil to pass through the sieve plate 801 for screening.

[0036] As shown in Figure 1 , Figures 4-5As shown, the screening assembly 8 further comprises a surrounding baffle 806 and a rolling grinding roller 807, the upper surface of the screen plate 801 is provided with the surrounding baffle 806, and the inside of the surrounding baffle 806 is provided with the rolling grinding roller 807, the surrounding baffle 806 is in the shape of a "mouth" and the rolling grinding roller 807 is attached to the inner wall of the surrounding baffle 806 and the surface of the screen plate 801;

[0037] The specific operation is as follows: the soil is limited inside the surrounding baffle 806, which is beneficial to prevent the soil from separating from the surface of the screen plate 801 due to the inclination or vibration of the screen plate 801. When the screen plate 801 is inclined, the rolling grinding roller 807 rolls to the lower end of the screen plate 801 due to the influence of gravity, and the soil on the surface of the screen plate 801 is crushed during the rolling process.

[0038] The rolling grinding roller 807 rolls to the lower end of the screen plate 801 due to the influence of gravity inside the surrounding baffle 806, thereby crushing the soil on the surface of the screen plate 801, which is beneficial to further crush the large-particle soil remaining on the surface of the screen plate 801, thereby avoiding the blockage of the screen holes due to the accumulation of large-particle soil on the surface of the screen plate 801.

[0039] As shown, Figures 1-3 In addition to the residual assembly 5, the device further comprises a return air pipe 509 and a bifurcated air outlet head 510, the bottom of the air pump 506 is connected with the return air pipe 509, and the end of the return air pipe 509 is connected with the bifurcated air outlet head 510;

[0040] The specific operation is as follows: the hot air passes through the filter screen 507 and enters the return air pipe 509 under the operation of the air pump 506, the return air pipe 509 sends the hot air to the bifurcated air outlet head 510, the bifurcated air outlet head 510 is inside the box 1, and the bifurcated air outlet head 510 respectively faces the surface of the screen plate 801 and the surface of the crushing roller 2, the hot air is sprayed from the bifurcated air outlet head 510 in the form of air flow to blow the surface of the screen plate 801 and the surface of the crushing roller 2, thereby drying the crushed soil and the soil remaining on the surface of the crushing roller 2, which is beneficial to speed up the drying speed of the soil for processing.

[0041] As shown, Figures 1-5 The specific operation is as follows: the soil from the top of the box 1 enters the inside of the box 1 through the feed hopper, the rotating motor 4 drives any meshing gear 3 to rotate the crushing roller 2, the other crushing roller 2 rotates through the structure of the two meshing gears 3, and the two crushing rollers 2 rotate towards each other to crush the soil, and the heating pipe 6 is embedded in the crushing roller 2 to heat the soil on the surface of the crushing roller 2.

[0042] When the two meshing gears 3 rotate and mesh with each other, the transmission gear 501 is also driven to rotate, and the brush roller 502 is attached to the surface of the crushing roller 2 to clean the soil remaining on the surface of the crushing roller 2. The soil on the surface of the brush roller 502 is combed by the combs inside the comb box 503 and falls into the comb box 503 during the rotation of the brush roller 502. Then, the negative pressure generated at the suction head 504 by the suction pump 506 is used to suck the soil into the filter box 505. At the same time, the air with heat around the crushing roller 2 is also sucked into the filter box 505. The hot air passes through the filter screen 507, and the soil is blocked by the filter screen 507 and falls into the filter box 505. The soil is mixed with the crushed soil and falls onto the surface of the sieve plate 801. The output shaft 9 is driven by the vibration motor 10 to rotate the eccentric wheel 11. At this time, the eccentric wheel 11 is in constant contact with the bottom of the sieve plate 801. The sieve plate 801 is elastically connected to the sleeve 7 by the spring, so that the sieve plate 801 vibrates under the action of the eccentric wheel 11.

[0043] The residual soil and the crushed soil are mixed and fall onto the surface of the sieve plate 801. The output shaft 9 is driven by the vibration motor 10 to rotate the eccentric wheel 11. At this time, the eccentric wheel 11 is in constant contact with the bottom of the sieve plate 801. The sieve plate 801 is elastically connected to the sleeve 7 by the spring, so that the sieve plate 801 vibrates under the action of the eccentric wheel 11.

[0044] At the same time, the winding motor 805 drives the winding disc 804 to rotate clockwise and counterclockwise. The pulling rope 803 on the surface of the winding disc 804 can be wound and unwound. When the pulling rope 803 is wound, the end of the sieve plate 801 sinks and rotates through the sleeve 7, so that one end of the sieve plate 801 sinks and the other end rises. When the pulling rope 803 is unwound, one end of the sieve plate 801 sinks due to the weight of the counterweight 802, and the other end of the sieve plate 801 rises. In this way, the two ends of the sieve plate 801 are constantly alternately raised, so that the soil is evenly distributed on the surface of the sieve plate 801.

[0045] The soil is located inside the enclosing plate 806 and is restricted by it, which helps to prevent the soil from falling off the surface of the sieve plate 801 due to the inclination or vibration of the sieve plate 801. When the sieve plate 801 is inclined, the rolling mill roller 807 rolls towards the lower end of the sieve plate 801 due to the influence of gravity. During the rolling process, the rolling mill roller 807 crushes the soil on the surface of the sieve plate 801.

[0046] The hot air passing through the filter screen 507 enters the return air pipe 509 under the operation of the suction pump 506. The return air pipe 509 sends the hot air to the bifurcated exhaust head 510. The bifurcated exhaust head 510 is inside the box 1 and faces the surface of the sieve plate 801 and the surface of the crushing roller 2. The hot air is blown out from the bifurcated exhaust head 510 in the form of air flow, which dries the crushed soil and the residual soil on the surface of the crushing roller 2.

[0047] The soil passing through the sieve plate 801 is in powder form and collects at the bottom of the box 1. The soil sample can be discharged by opening the valve at the bottom of the box 1. After obtaining the soil sample, it can be sent to the analysis process for analysis.

[0048] Embodiments of the present application are presented by way of example and description, and are not intended to be exhaustive or to limit the application to the form disclosed. Many modifications and variations will be apparent to those skilled in the art upon reading this disclosure. Embodiments are chosen and described in order to best explain the principles of the application and its practical application to thereby enable others skilled in the art to best utilize the application, various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A soil sample preparation, air-drying, and grinding device, comprising a housing (1), a residue removal component (5), and a sieving component (8), characterized in that: A crushing roller (2) is rotatably connected to the upper part of the inner wall of the housing (1), and a meshing gear (3) is provided on the outer wall of the end of the crushing roller (2). A rotating motor (4) is connected to the end of the crushing roller (2). The residue removal component (5) is located on the side of the crushing roller (2). A heating tube (6) is embedded inside the crushing roller (2). The residue removal component (5) includes a transmission gear (501), a brush roller (502), a comb box (503), an air extraction head (504), a filter box (505), an air pump (506), a filter screen (507), and a return pipe (508). The transmission gear (501) A brush roller (502) is connected to one side of the sieve assembly (8), and a comb box (503) is provided on the side of the brush roller (502). An air extraction head (504) is provided at the bottom of the inner wall of the comb box (503), and a filter box (505) is connected to the end of the air extraction head (504). An air pump (506) is connected to the side of the filter box (505), and a filter screen (507) is provided inside the filter box (505). A return pipe (508) is connected to the bottom of the filter box (505). The sieve assembly (8) includes a sieve plate (801), a counterweight (802), a pull rope (803), and a winding reel (804). The sieve plate (801) is equipped with a winding motor (805), a counterweight (802) is fixed on one side of the bottom of the sieve plate (801), and a pull rope (803) is fixed on the other side of the bottom of the sieve plate (801). The bottom end of the pull rope (803) is connected to a winding reel (804), and one side of the winding reel (804) is connected to a winding motor (805). The sieve plate (801) is elastically connected to the sleeve (7) by a spring, and the surface of the sieve plate (801) has a mesh structure. The sieve assembly (8) also includes a baffle plate (806) and a rolling grinding roller (807). The baffle plate (806) is provided on the upper surface of the sieve plate (801), and... The enclosure (806) is equipped with a rolling grinding roller (807). There are two crushing rollers (2). The meshing gears (3) at the ends of the two crushing rollers (2) mesh with each other. The transmission gear (501) meshes with the meshing gear (3). The brush roller (502) is connected to the meshing gear (3) through the transmission gear (501). The surface of the brush roller (502) is in contact with the surface of the crushing roller (2). The air pump (506) is connected to the air extraction head (504) through the filter box (505). The filter box (505) is connected to the box (1) through the return pipe (508).

2. The soil sample preparation, air-drying, and grinding device according to claim 1, characterized in that: The lower inner wall of the box (1) is rotatably connected to the sleeves (7), and the top of the sleeves (7) is connected to the screening assembly (8) by a spring. An output shaft (9) is installed inside the sleeves (7), and a vibration motor (10) is connected to the left side of the output shaft (9), and an eccentric wheel (11) is connected to the right side of the output shaft (9).

3. The soil sample preparation, air-drying, and grinding device according to claim 2, characterized in that: The baffle plate (806) has a "square" - shaped structure, and the rolling grinding roller (807) is in contact with the inner wall of the baffle plate (806) and the surface of the sieve plate (801).

4. The soil sample preparation, air-drying, and grinding device according to claim 3, characterized in that: The residual removal component (5) further includes a return air pipe (509) and a bifurcated exhaust head (510). The bottom of the air extraction pump (506) is connected to the return air pipe (509), and the end of the return air pipe (509) is connected to the bifurcated exhaust head (510).

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