CN113797998B - Disturbing soil sample de-milling and screening method and device - Google Patents
Disturbing soil sample de-milling and screening method and device Download PDFInfo
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- CN113797998B CN113797998B CN202111108672.0A CN202111108672A CN113797998B CN 113797998 B CN113797998 B CN 113797998B CN 202111108672 A CN202111108672 A CN 202111108672A CN 113797998 B CN113797998 B CN 113797998B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C1/00—Crushing or disintegrating by reciprocating members
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
- B07B1/4636—Regulation of screen apertures
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
- B02C2023/165—Screen denying egress of oversize material
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
- G01N2001/2866—Grinding or homogeneising
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- General Health & Medical Sciences (AREA)
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- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses a method and a device for dispersing and screening a disturbed soil sample, wherein the device comprises a feeding cylinder, a dispersing hammer, a screening device and a soil collecting cylinder, wherein the feeding cylinder, the screening device and the soil collecting cylinder are sequentially connected from top to bottom, and the dispersing hammer is vertically arranged in the feeding cylinder; the inner cylinder wall of the feeding cylinder is provided with a motor, and the output end of the motor penetrates through the cylinder wall to be connected with the special-shaped rotating block; the hammer of breaking up includes tup and hammer handle, and a feeding section of thick bamboo is stretched out on the top of hammer handle, and the fixed edge at hammer handle top is equipped with and stretches out the board, stretches out the lower terminal surface of board and the edge laminating of dysmorphism turning block, rotates through special-shaped turning block, drives the hammer of breaking up and vibrates the soil material on the interior sieve separator of hammering feeding section of thick bamboo from top to bottom. Can break up and sieve soil sample fast, can not destroy soil body structure, can not produce the dust in indoor yet.
Description
Technical Field
The invention relates to the technical field of soil sample crushing and screening in soil tests, in particular to a method and a device for disturbing soil sample crushing and screening.
Background
Soil samples need to be prepared in the soil engineering test, the remolded soil samples are generally hammered manually, namely, the blocky disturbed soil is placed on a rubber plate and is ground by wood, and then the blocky disturbed soil is sieved or screened. If a pulverizer is used to shred or grind the soil, the crushed particles will damage the soil structure, thereby affecting the particle composition of the soil. Therefore, the existing soil crushing device cannot be used in the soil test. However, the manual operation efficiency of the indoor test is extremely low, if a large amount of soil samples are needed, not only is the time consumed longer and the labor cost higher, but also a large amount of dust generated in the manual soil hammering process can pollute indoor and outdoor environments. Therefore, a mechanical device is needed for disturbing the soil sample to be spread in the soil test, so as to improve the operation efficiency of the indoor test.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a method and a device for dispersing and screening disturbed soil samples, which can rapidly disperse and screen the soil samples, cannot damage the soil body structure, and cannot generate dust indoors.
The technical scheme for realizing the purpose of the invention is as follows:
a disturbance soil sample de-registering and screening device comprises a feeding cylinder, a de-registering hammer, a screening device and a soil collecting cylinder, wherein the feeding cylinder, the screening device and the soil collecting cylinder are sequentially connected from top to bottom, and the de-registering hammer is vertically arranged in the feeding cylinder; the inner cylinder wall of the feeding cylinder is provided with a motor, and the output end of the motor penetrates through the cylinder wall and is connected with the special-shaped rotating block; the hammer that breaks up includes tup and hammer handle, and a feeding section of thick bamboo is stretched out on the top of hammer handle, and the fixed edge at hammer handle top is equipped with and stretches out the board, stretches out the lower terminal surface of board and the edge laminating of dysmorphism turning block, rotates through special-shaped turning block, drives and breaks up the hammer and vibrate the soil material on the interior sieve separator of hammering feeding section of thick bamboo from top to bottom.
The feeding cylinder, the screening device and the soil collecting cylinder are sequentially connected with each other in a detachable mode through screw openings from top to bottom.
The top of the feeding cylinder is provided with a cover plate, the cover plate is provided with a feeding hole and a hammer handle opening, and the size of the hammer handle opening is matched with that of the hammer handle.
The special-shaped rotating block is an elliptical rotating block, the difference between the long axis and the short axis is the falling height of the dispersion hammer, and the hammer head can collide with soil materials when the dispersion hammer falls.
The screening device is an arc screening device of a concave soil collecting cylinder.
The screening device comprises a cylinder, an upper screen and a lower screen, wherein the upper screen and the lower screen are arranged in the cylinder, the upper screen and the lower screen are rotatably connected at the center of the circle through a vertical shaft, the edge of the upper screen is provided with a rotary shifting sheet, and the upper screen rotates relative to the lower screen through the rotary shifting sheet, so that holes are staggered or superposed; when the dispersion hammer vibrates up and down to hammer soil materials, the rotary plectrum is rotated to enable holes on the upper-layer screen and the lower-layer screen to be staggered, so that the soil materials do not fall into the soil collecting cylinder; after hammering, the rotary shifting piece is rotated to enable the holes of the upper-layer screen and the lower-layer screen to be completely overlapped, and the feeding cylinder is shaken, so that the scattered soil can fall into the soil collecting cylinder.
The thickness of the upper layer screen and the lower layer screen is 5mm, holes are uniformly distributed on the screens, and the distance between the edges of the adjacent holes is larger than the aperture of the holes; according to actual requirements, the screen meshes with different apertures are replaced, and then the soil materials with different particle sizes can be obtained.
The holes are small in upper portion and large in lower portion, so that soil particles with particle sizes smaller than the diameter of the holes can freely fall into the soil collecting barrel, and the soil particles are prevented from being blocked in the holes.
The top end of the hammer handle is also provided with a detachable weight adjusting block, and the middle part of the hammer handle is provided with a limiting hole.
The hammer is a rubber hammer, the end surface of the rubber hammer is an arc-shaped surface, and the radian of the rubber hammer is the same as that of the arc-shaped screening device.
And a switch for controlling the starting and the closing of the motor is arranged on the outer wall of the feeding cylinder.
The soil collecting barrel is internally provided with an inclined plate, the soil collecting barrel wall at the lower end of the inclined plate is provided with a discharge hole, and the outer wall of the soil collecting barrel is also provided with a handle.
The method for dispersing and screening the soil sample by using the disturbed soil sample dispersing and screening device comprises the following steps:
1) Connecting a sieving device and a soil collecting barrel, aligning the lower end of a hammer handle of a breaking-up hammer to a hammer handle port on a cover plate of a feeding barrel, inserting the breaking-up hammer into the feeding barrel, connecting a hammer head with the lower end of the hammer handle, connecting the feeding barrel with the sieving device, and enabling an extending plate at the top of the hammer handle to be attached to the edge of the special-shaped rotating block;
2) Adjusting a rotary shifting sheet at the edge of the upper-layer screen to enable the upper-layer screen to rotate relative to the lower-layer screen, so that the positions of holes in the upper-layer screen and the lower-layer screen are staggered, and soil is prevented from falling into the soil collecting barrel;
3) Pouring the soil sample to be milled into the cylinder body from the feeding hole of the feeding cylinder, and sealing the feeding hole;
4) The motor is started through a switch of the motor, the motor drives the special-shaped rotating block to rotate, and the extending plate is always attached to the special-shaped rotating block, so that the rolling hammer is driven to vibrate up and down, and soil on the sieving device in the feeding cylinder is hammered;
5) After hammering for a period of time, turning off the motor through a switch of the motor, lifting the de-registering hammer, and inserting the bolt into a limiting hole in the hammer handle;
6) Rotating the rotary shifting sheet at the edge of the upper layer of screen mesh to completely coincide the holes of the upper and lower layers of screen mesh, and shaking the feeding cylinder to enable the scattered soil to fall into the soil collecting cylinder;
7) Discharging the soil in the soil collecting barrel from the discharge hole through the inclined plate, and repeating the steps 2) -6) until no soil is discharged from the discharge hole;
8) And splitting the feeding cylinder, the dispersing hammer, the sieving device and the soil collecting cylinder, and taking out the residual soil on the sieving device to finish dispersing and sieving of the disturbed soil sample.
Compared with the prior art, the disturbing soil sample de-rolling and screening method and the disturbing soil sample de-rolling and screening device provided by the invention have the following advantages:
1. the electric device is adopted to replace manual hammering of the soil, so that the working efficiency is improved, and the cost of human resources is reduced; when the device hammers soil materials, the soil materials are in a closed space, so that soil dust is prevented from scattering, and the indoor and outdoor environment is less polluted;
2. the hammer head of the dispersing hammer is made of rubber, so that the hardness is low, the weight is light, the structure of a soil body cannot be damaged when the soil material is hammered, and the standard requirement of a soil test is met;
3. the sieve is arc-shaped, so that soil materials can be gathered conveniently, the scattering efficiency is improved, the distance between the edges of adjacent holes on the screen is larger than the aperture of the holes, the holes on the lower screen are shielded when the upper screen rotates for a certain angle along the circle center, and soil particles are prevented from falling into the soil collecting cylinder in the hammering process; and the holes on the screen are small at the top and big at the bottom, so that the soil particles with the particle size smaller than the pore diameter at the upper end can smoothly pass through the holes and cannot be clamped in the holes.
Drawings
FIG. 1 is a schematic view of a breaking-up hammer in a falling state;
FIG. 2 is a schematic view of the de-registering hammer in a raised condition;
FIG. 3 is a front view of the de-registering hammer;
FIG. 4 is a top view of the de-registering hammers;
FIG. 5 is a top view of the feed cylinder;
FIG. 6 is a front view of the sifter;
FIG. 7 is a top view of a screen;
in the figure: 1. the device comprises a feeding barrel 2, a breaking-up hammer 3, a screening device 4, a soil collecting barrel 5, an inclined plate 6, a discharging port 7, a handle 8, a motor control switch 9, an output end 10 of a motor, a special-shaped rotating block 11, an extending plate 12, a motor 13, a cover plate 14, a feeding port 15, a hammer handle port 2-1, a hammer handle 2-2, a limiting hole 2-3, a hammer head 3-1, an upper layer screen 3-2, a lower layer screen 3-3, a hole 3-4 and a rotary shifting piece 3-5 cylinder.
Description of the preferred embodiment
The invention will be further described with reference to the following drawings and examples, which are not intended to limit the invention.
Examples
As shown in fig. 1, 2, 3, 4, 5, 6 and 7: wherein, fig. 1 and fig. 2 are schematic diagrams of two states of disturbance soil sample de-rolling and after the sieving device is lowered and when the sieving device is lifted respectively, the device comprises a feeding cylinder 1, a de-rolling hammer 2, a sieving device 3 and a soil collecting cylinder 4, the feeding cylinder 1, the sieving device 3 and the soil collecting cylinder 4 are connected in sequence from top to bottom, and the de-rolling hammer 2 is vertically arranged in the feeding cylinder 1; the inner cylinder wall of the feeding cylinder 1 is provided with a motor 12, and the output end of the motor 12 penetrates through the cylinder wall and is connected with the special-shaped rotating block 10; the dispersion hammer 2 comprises a hammer head 2-3 and a hammer handle 2-1, the top end of the hammer handle 2-1 extends out of the feeding cylinder 1, an extending plate 11 is fixedly arranged at the edge of the top of the hammer handle 2-1, the lower end face of the extending plate 11 is attached to the edge of the special-shaped rotating block 10, and the special-shaped rotating block 10 rotates to drive the dispersion hammer 2 to vibrate and hammer soil materials on the sieving device 3 in the feeding cylinder 1 up and down.
The feeding cylinder 1, the sieving device 3 and the soil collecting cylinder 4 are connected in a detachable mode sequentially through screw openings from top to bottom.
The top of the feeding cylinder 1 is provided with a cover plate 13, the cover plate 13 is provided with a feeding hole 14 and a hammer handle port 15, and the size of the hammer handle port 15 is matched with that of the hammer handle 2-1.
The special-shaped rotating block 10 is an elliptical rotating block, the difference between the long axis and the short axis is the falling height of the dispersion hammer 2, and the hammer heads 2-3 can collide with soil materials when the dispersion hammer 2 falls.
The screening device 3 is an arc screening device which is concave to the soil collecting cylinder 4.
The screening device 3 comprises a cylinder 3-5, an upper-layer screen 3-1 and a lower-layer screen 3-2, wherein the upper-layer screen 3-1 and the lower-layer screen 3-2 are arranged in the cylinder 3-5, the upper-layer screen 3-1 and the lower-layer screen 3-2 are rotatably connected at the circle center through a vertical shaft, a rotary shifting piece 3-4 is arranged at the edge of the upper-layer screen 3-1, and the upper-layer screen 3-1 is rotated relative to the lower-layer screen 3-2 through the rotary shifting piece 3-4 to enable holes to be staggered or overlapped; when the dispersion hammer 2 vibrates up and down to hammer soil materials, the rotary plectrum 3-4 is rotated to enable the holes 3-3 of the upper-layer screen 3-1 and the holes 3-2 of the lower-layer screen 3-2 to be staggered, so that the soil materials do not fall into the soil collecting cylinder 4; and after hammering, rotating the rotary plectrum 3-4 to ensure that the holes 3-3 of the upper-layer screen 3-1 and the holes 3-3 of the lower-layer screen 3-2 are completely superposed, and shaking the feeding cylinder 1 to ensure that the scattered soil material falls into the soil collecting cylinder 4.
The thickness of the upper layer screen 3-1 and the lower layer screen 3-2 is 5mm, the holes 3-3 are uniformly distributed on the screens, and the distance between the edges of the adjacent holes 3-3 is larger than the aperture of the holes 3-3; according to actual requirements, the screen meshes with different apertures are replaced, and then the soil materials with different particle sizes can be obtained.
The holes 3-3 are holes with small upper parts and large lower parts, so that soil particles with the particle diameters smaller than the diameters of the holes can freely fall into the soil collecting cylinder, and the soil particles are prevented from being blocked in the holes.
The top end of the hammer handle 3-1 is also provided with a detachable weight adjusting block, the weight of the whole vibrating hammer is adjusted by detaching and installing the weight adjusting blocks with different weights, and the middle part of the hammer handle is provided with a limiting hole 2-2.
The hammerhead 2-3 is a rubber hammerhead, the end surface of which is an arc-shaped surface, and the radian of the hammerhead is the same as that of the arc-shaped screening device.
And a switch for controlling the starting and the closing of the motor is arranged on the outer wall of the feeding cylinder 1.
A tilt plate 5 is arranged in the soil collecting cylinder 4, a discharge hole 6 is formed in the wall of the soil collecting cylinder 4 at the lower end of the tilt plate 5, and a handle is further arranged on the outer wall of the soil collecting cylinder 4, so that the soil collecting cylinder 4 can be moved conveniently.
The method for dispersing and screening the soil sample by using the disturbed soil sample dispersing and screening device comprises the following steps:
1) Connecting a sieving device and a soil collecting barrel, aligning the lower end of a hammer handle of a dispersing hammer to a hammer handle port on a cover plate of a feeding barrel, inserting the lower end of the hammer handle into the feeding barrel, connecting a hammer head with the lower end of the hammer handle, then connecting the feeding barrel with the sieving device, and enabling an extending plate at the top of the hammer handle to be attached to the edge of the special-shaped rotating block;
2) Adjusting a rotary shifting sheet at the edge of the upper-layer screen to enable the upper-layer screen to rotate relative to the lower-layer screen, so that the positions of holes in the upper-layer screen and the lower-layer screen are staggered, and soil is prevented from falling into the soil collecting barrel;
3) Pouring a soil sample to be dispersed into the cylinder body from a feeding hole of the feeding cylinder, and sealing the feeding hole;
4) The motor is started through a switch of the motor, the motor drives the special-shaped rotating block to rotate, and the extending plate is always attached to the special-shaped rotating block, so that the rolling hammer is driven to vibrate up and down, and soil on the sieving device in the feeding cylinder is hammered;
5) After hammering for a period of time, turning off the motor through a switch of the motor, lifting the de-registering hammer, and inserting the bolt into a limiting hole in the hammer handle;
6) Rotating the rotary shifting sheet at the edge of the upper layer of screen mesh to completely coincide the holes of the upper and lower layers of screen mesh, and shaking the feeding cylinder to enable the scattered soil to fall into the soil collecting cylinder;
7) Discharging the soil in the soil collecting barrel from the discharge hole through the inclined plate, and repeating the steps 2) -6) until no soil is discharged from the discharge hole;
8) And splitting the feeding cylinder, the dispersing hammer, the sieving device and the soil collecting cylinder, and taking out the residual soil on the sieving device to finish dispersing and sieving of the disturbed soil sample.
The principle of the device is as follows: the motor drives the special-shaped rotating block to rotate, the special-shaped rotating block supports the dispersing hammer to move up and down, the dispersing hammer freely falls at each time to drive the rubber head to continuously impact soil on the screen of the screening device, and soil particles are dispersed by continuously hammering the soil. The screen is divided into an upper layer and a lower layer, and the holes of the upper layer and the lower layer can be completely overlapped or completely staggered by rotating the upper layer screen; when the upper and lower screens are completely staggered, the soil can be hammered; when the holes of the upper and lower screens are completely coincident, soil can be screened; the particle size of the soil particles is smaller than that of the holes, the soil particles can freely fall through the holes and finally come out from the outlet along the sloping plate of the soil container, and the residual soil on the screen is the soil with the particle size larger than that of the holes.
During the use of the device, the following is noted:
1. the weight and the free falling height of the vibration hammer are not too large so as to prevent the structure of the soil from being damaged due to too large hammering force.
2. The holes of the screen are uniformly arranged in the circumferential direction according to different radiuses, the circumferential clear distance of the holes is slightly larger than the diameter of the holes, the holes are guaranteed to be covered when the upper screen rotates for a certain angle along the circle center, and soil particles are prevented from falling down the screen in the hammering process;
3. the screen mesh of the screen separator is made of steel, has a certain thickness, and can bear the hammering of the vibration hammer without deformation and damage. The diameter of each hole of the screen is small at the top and big at the bottom, and the soil can freely fall down as long as the particle size of the soil is smaller than the diameter of the surface of the hole.
Claims (1)
1. A disturbance soil sample de-mixing and screening device is characterized by comprising a feeding cylinder, a de-mixing hammer, a screening device and a soil collecting cylinder, wherein the feeding cylinder, the screening device and the soil collecting cylinder are sequentially connected from top to bottom, and the de-mixing hammer is vertically arranged in the feeding cylinder; the inner cylinder wall of the feeding cylinder is provided with a motor, and the output end of the motor penetrates through the cylinder wall and is connected with the special-shaped rotating block; the de-registering hammer comprises a hammer head and a hammer handle, the top end of the hammer handle extends out of the feeding cylinder, an extending plate is fixedly arranged on the edge of the top of the hammer handle, the lower end surface of the extension plate is attached to the edge of the special-shaped rotating block, and the special-shaped rotating block rotates to drive the de-rolling hammer to vibrate and hammer soil on the sieving device in the feeding cylinder up and down;
the screening device is an arc screening device of a concave soil collecting cylinder;
the screening device comprises a cylinder, an upper screen and a lower screen, wherein the upper screen and the lower screen are arranged in the cylinder, the upper screen and the lower screen are rotatably connected at the center of the circle through a vertical shaft, the edge of the upper screen is provided with a rotary shifting sheet, and the upper screen rotates relative to the lower screen through the rotary shifting sheet, so that holes are staggered or superposed; when the dispersion hammer vibrates up and down to hammer soil materials, the rotary plectrum is rotated to enable holes on the upper-layer screen and the lower-layer screen to be staggered, so that the soil materials do not fall into the soil collecting cylinder; after hammering, rotating the rotary plectrum to enable the holes of the upper-layer screen and the lower-layer screen to be completely overlapped, and shaking the feeding cylinder to enable the scattered soil to fall into the soil collecting cylinder;
the thickness of the upper layer screen and the lower layer screen is 5mm, holes are uniformly distributed on the screens, and the distance between the edges of the adjacent holes is larger than the aperture of the holes;
the holes are small at the top and big at the bottom, so that soil particles with the particle size smaller than the diameter of the holes can freely fall into the soil collecting cylinder, and the soil particles are prevented from being blocked in the holes;
the top end of the hammer handle is also provided with a detachable weight adjusting block, and the middle part of the hammer handle is provided with a limiting hole;
the hammer is a rubber hammer, the end surface of the hammer is an arc-shaped surface, and the radian of the hammer is the same as that of the arc-shaped sieving device;
the method for disturbing the soil sample to be dispersed and screened by the soil sample dispersing and screening device comprises the following steps:
1) Connecting a sieving device and a soil collecting barrel, aligning the lower end of a hammer handle of a dispersing hammer to a hammer handle port on a cover plate of a feeding barrel, inserting the lower end of the hammer handle into the feeding barrel, connecting a hammer head with the lower end of the hammer handle, then connecting the feeding barrel with the sieving device, and enabling an extending plate at the top of the hammer handle to be attached to the edge of the special-shaped rotating block;
2) Adjusting a rotary shifting sheet at the edge of the upper-layer screen to enable the upper-layer screen to rotate relative to the lower-layer screen, so that the positions of holes in the upper-layer screen and the lower-layer screen are staggered, and soil is prevented from falling into the soil collecting barrel;
3) Pouring the soil sample to be milled into the cylinder body from the feeding hole of the feeding cylinder, and sealing the feeding hole;
4) The motor is started through a switch of the motor, the motor drives the special-shaped rotating block to rotate, and the extending plate is always attached to the special-shaped rotating block, so that the rolling hammer is driven to vibrate up and down, and soil on the sieving device in the feeding cylinder is hammered;
5) After hammering for a period of time, turning off the motor through a switch of the motor, lifting the de-registering hammer, and inserting the bolt into a limiting hole in the hammer handle;
6) Rotating the rotary shifting sheet at the edge of the upper layer of screen mesh to completely coincide the holes of the upper and lower layers of screen mesh, and shaking the feeding cylinder to enable the scattered soil to fall into the soil collecting cylinder;
7) Discharging the soil in the soil collecting barrel from the discharge hole through the inclined plate, and repeating the steps 2) -6) until no soil is discharged from the discharge hole;
8) Splitting the feeding cylinder, the de-rolling hammer, the screening device and the soil collecting cylinder, and taking out the residual soil on the screening device to finish de-rolling and screening of the disturbed soil sample;
the feeding cylinder, the screening device and the soil collecting cylinder are detachably connected through screw ports sequentially from top to bottom;
the top of the feeding cylinder is provided with a cover plate, the cover plate is provided with a feeding hole and a hammer handle opening, and the size of the hammer handle opening is matched with that of the hammer handle;
the special-shaped rotating block is an elliptical rotating block, and the difference between the long axis and the short axis is the falling height of the de-registering hammer;
a switch for controlling the starting and the closing of the motor is arranged on the outer wall of the feeding cylinder;
the soil collecting barrel is internally provided with an inclined plate, the soil collecting barrel wall at the lower end of the inclined plate is provided with a discharge hole, and the outer wall of the soil collecting barrel is also provided with a handle.
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| CN202111108672.0A CN113797998B (en) | 2021-09-22 | 2021-09-22 | Disturbing soil sample de-milling and screening method and device |
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| CN202111108672.0A CN113797998B (en) | 2021-09-22 | 2021-09-22 | Disturbing soil sample de-milling and screening method and device |
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| CN113797998B true CN113797998B (en) | 2023-03-10 |
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| CN212632792U (en) * | 2020-06-17 | 2021-03-02 | 苏州大鲸三维科技有限公司 | Automatic grinding device for 3D printed products |
| CN212681111U (en) * | 2020-06-09 | 2021-03-12 | 广州兴佳生物科技有限公司 | Device is smashed to pieces to cosmetics raw materials |
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2021
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| CN207342758U (en) * | 2017-10-20 | 2018-05-11 | 中国人民解放军第三军医大学 | A kind of chemical experiment particulate abrasive device |
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| CN109107648A (en) * | 2018-08-13 | 2019-01-01 | 侯红星 | A kind of combination high-efficiency Chinese medicine dismembyator |
| CN210906303U (en) * | 2019-09-06 | 2020-07-03 | 嵩明忠诚新材料科技有限公司 | Sand blasting machine |
| CN211190312U (en) * | 2019-09-09 | 2020-08-07 | 江西京九药业有限公司 | Mint raw material grinding device |
| CN210995788U (en) * | 2019-10-25 | 2020-07-14 | 广西壮族自治区农业科学院 | Soil conditioner spreads fertilizer over fields device |
| CN111068822A (en) * | 2019-12-25 | 2020-04-28 | 安徽品罗科技有限公司 | Conveniently adjust preparation facilities for battery graphite particle of screening degree |
| CN212681111U (en) * | 2020-06-09 | 2021-03-12 | 广州兴佳生物科技有限公司 | Device is smashed to pieces to cosmetics raw materials |
| CN212632792U (en) * | 2020-06-17 | 2021-03-02 | 苏州大鲸三维科技有限公司 | Automatic grinding device for 3D printed products |
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