CN111855335A - A smash grinder for soil sample - Google Patents
A smash grinder for soil sample Download PDFInfo
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- CN111855335A CN111855335A CN201910333837.0A CN201910333837A CN111855335A CN 111855335 A CN111855335 A CN 111855335A CN 201910333837 A CN201910333837 A CN 201910333837A CN 111855335 A CN111855335 A CN 111855335A
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- grinding
- cylinder
- grinding cylinder
- soil sample
- driving mechanism
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- 239000002689 soil Substances 0.000 title claims abstract description 49
- 238000000227 grinding Methods 0.000 claims abstract description 125
- 230000007246 mechanism Effects 0.000 claims abstract description 35
- 238000005520 cutting process Methods 0.000 claims abstract description 18
- 238000004140 cleaning Methods 0.000 claims abstract description 12
- 230000007306 turnover Effects 0.000 claims abstract description 10
- 238000001179 sorption measurement Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 abstract description 10
- 238000002360 preparation method Methods 0.000 abstract description 7
- 238000012864 cross contamination Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
Images
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/08—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within vertical containers
- B02C18/12—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within vertical containers with drive arranged below container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/16—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/16—Details
- B02C18/18—Knives; Mountings thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/16—Details
- B02C18/24—Drives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/087—Cleaning containers, e.g. tanks by methods involving the use of tools, e.g. brushes, scrapers
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Crushing And Grinding (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to the technical field of soil sample preparation, in particular to a crushing grinder. A crushing mill for soil samples comprising: the grinding device comprises a grinding cylinder, a cutting grinding head, a grinding driving mechanism, a movable cover plate and a turnover mechanism; the grinding driving mechanism is fixedly arranged at the bottom of the grinding cylinder, and an output shaft of the grinding driving mechanism is connected with a cutting grinding head in the grinding cylinder; the movable cover plate is arranged at the opening of the grinding cylinder and used for opening/closing the grinding cylinder; the turnover mechanism is connected with the grinding cylinder and used for realizing the up-and-down rotation of the grinding cylinder. According to the invention, after the ground soil sample particles are crushed, the soil sample is turned downwards and poured, so that automatic soil sample grinding is realized, and the sample preparation efficiency is greatly improved; soil samples of different grinding types can be obtained by adjusting the grinding time and the grinding speed of the cutting grinding head and selecting different blades; the invention can also realize automatic cleaning and avoid cross contamination among soil samples.
Description
Technical Field
The invention relates to the technical field of soil sample preparation, in particular to a crushing grinder.
Background
The soil sample preparation refers to the process of uniformly mixing, drying, grinding and sieving the soil sample after the soil sample is collected from the field. As shown in fig. 1, the conventional soil sample preparation process includes: sampling, removing foreign matters such as bricks, lime concretions, rhizome animal and plant residues and the like mixed in soil, air-drying, coarse grinding, fine grinding, weighing, bottling and the like; in the traditional technology, need adopt pure artifical mode to grind soil sample at soil sample primary election, corase grind, the in-process of fine grinding, the instrument of use mainly has: a wood hammer, a wood roller, a wood rod, an organic glass plate, a hard wood plate and a colorless polyethylene film for rough grinding; grinding the sample by an agate grinder (ball mill) or an agate mortar, a white porcelain mortar and various auxiliary tools. The grinding process has the disadvantages of large workload, long period, large occupied area and low sample preparation efficiency.
Disclosure of Invention
The purpose of the invention is: to prior art's not enough, provide a crushing grinder for soil sample, realize automatic soil sample and grind.
The technical scheme of the invention is as follows: a crushing mill for soil samples comprising: the grinding device comprises a grinding cylinder, a cutting grinding head, a grinding driving mechanism, a movable cover plate and a turnover mechanism;
The grinding driving mechanism is fixedly arranged at the bottom of the grinding cylinder, and an output shaft of the grinding driving mechanism is connected with a cutting grinding head in the grinding cylinder; the movable cover plate is arranged at the opening of the grinding cylinder and used for opening/closing the grinding cylinder; the turnover mechanism is connected with the grinding cylinder and used for realizing the up-and-down rotation of the grinding cylinder.
When grinding is carried out, firstly, a soil sample is poured into the grinding cylinder through a manipulator, and the opening of the grinding cylinder is sealed by utilizing the movable cover plate; then starting a grinding driving mechanism to grind the soil sample through a cutting grinding head; after the grinding is finished, the grinding cylinder is driven to overturn downwards through the overturning mechanism, the movable cover plate is opened, the soil sample in the grinding cylinder is poured outwards, and finally the grinding device is crushed and recovered to the initial state.
Furthermore, in order to obtain soil samples with different meshes, the grinding driving mechanism adopts a variable frequency motor, has three modes of low speed, medium speed and high speed, can knock, crush and grind the bulk and block soil samples, and can prepare the soil samples with different particle sizes such as large particles, medium particles, small particles and the like within a specific time; in addition, the ultra-low speed rotation of the cutting grinding head can also realize the stirring of the prepared sample, so that the prepared sample is uniformly mixed and homogenized.
In the above scheme, the cutting grinding head is of an upturned folding type blade structure, and can crush and grind the soil sample in a mode of connecting a plurality of blades in series up and down.
Furthermore, in order to realize self-cleaning after the soil sample is poured, a cleaning brush is arranged near the grinding cylinder; the cleaning brush is provided with a negative pressure adsorption device. After the grinding cylinder is dumped and finishes recovering the initial state, the cleaning brush moves to the grinding cylinder through the horizontal and vertical slide rail, starts to rotate and clean, opens the negative pressure air exhaust device 5 when being clean, can adsorb the particulate matter that drops from the grinding cylinder surface, avoids forming cross contamination between the soil sample.
In the above scheme, specifically, the grinding cylinder is made of a superhard material, and the inner wall surface of the grinding cylinder is of an arc-shaped structure.
Has the advantages that: according to the invention, after the ground soil sample particles are crushed, the soil sample is turned downwards and poured, so that automatic soil sample grinding is realized, and the sample preparation efficiency is greatly improved; soil samples of different grinding types can be obtained by adjusting the grinding time and the grinding speed of the cutting grinding head and selecting different blades; the invention can also realize automatic cleaning and avoid cross contamination among soil samples.
Drawings
FIG. 1 is a schematic view of a conventional process for preparing a soil sample according to the background art;
FIG. 2 is a schematic structural view of the present invention in example 1;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is a left side view of FIG. 2;
FIG. 5 is a schematic structural view of the present invention in example 2;
wherein: 1-grinding cylinder, 2-cutting grinding head, 3-grinding driving mechanism, 4-movable cover plate, 5-turnover mechanism and 6-cleaning brush.
Detailed Description
The invention is described in detail below by way of example with reference to the accompanying drawings.
Example 1: referring to fig. 2, 3 and 4, a crushing and grinding device for soil samples comprises: a grinding cylinder 1, a cutting grinding head 2, a grinding driving mechanism 3, a movable cover plate 4 and a turnover mechanism 5;
the grinding driving mechanism 3 is fixedly arranged at the bottom of the grinding cylinder 1, and an output shaft of the grinding driving mechanism 3 is connected with the cutting grinding head 2 in the grinding cylinder 1; the movable cover plate 4 is arranged at the opening of the grinding cylinder 1 and is used for opening/closing the grinding cylinder 1; the turnover mechanism 5 is connected with the grinding cylinder 1 and used for realizing the vertical rotation of the grinding cylinder 1.
In the embodiment, in order to obtain soil samples with different meshes, the grinding driving mechanism 3 adopts a variable frequency motor, has three modes of low speed, medium speed and high speed, can knock, crush and grind the bulk and block soil samples, and can prepare the soil samples with different particle sizes such as large particles, medium particles, small particles and the like in a specific time; in addition, the ultra-low speed rotation of the cutting grinding head 2 can also realize the stirring of the prepared sample, so that the prepared sample is uniformly mixed and homogenized.
The grinding cylinder 1 is made of superhard material, such as ceramic material, and the inner wall surface of the grinding cylinder is of an arc-shaped structure; the cutting grinding head 2 is of an upturning blade structure, is made of non-metal materials, and can crush and grind soil samples in a mode that a plurality of blades are connected in series up and down.
In the initial state, the opening of the grinding cylinder 1 is upward, the movable cover plate 4 is in an uncapped state, when grinding is carried out, firstly, a soil sample is poured into the grinding cylinder 1 through a manipulator, and the opening of the grindable cylinder 1 is sealed by the movable cover plate 4; then, starting a grinding driving mechanism 3 to grind the soil sample through a cutting grinding head 2; after the grinding is finished, the grinding cylinder 1 is driven to overturn downwards through the overturning mechanism 5, the movable cover plate 4 is opened, the soil sample in the grinding cylinder 1 is poured outwards to the screening and weighing mechanism, and finally the grinding device is crushed to recover the initial state.
Example 2: referring to the attached figure 5, on the basis of the embodiment 1, in order to realize self-cleaning after soil samples are poured, a cleaning brush 6 is arranged near the grinding cylinder 1; the cleaning brush 6 is provided with a negative pressure adsorption device. Grinding cylinder 1 emptys and finishes recovering initial condition after, and clean brush 6 removes to grinding cylinder 1 through horizontal slide rail, and the rotatory cleanness that begins opens negative pressure air exhaust device 5 when clean can adsorb the particulate matter that drops from grinding cylinder 1 surface, avoids forming cross contamination between the soil sample.
Example 3: on the basis of embodiment 1 or 2, the implementation forms of the movable cover plate 4 and the turnover mechanism 5 are specifically defined:
the movable cover plate 4 can move back and forth or turn over to open/close the grinding cylinder 1; in this example, the upper end of the grinding cylinder 1 is provided with a turning bracket, the turning bracket is provided with two side plates, the movable cover plate 4 is arranged between the two upper side plates through an upper turning mechanism, and under the action of the opening and closing motor, the movable cover plate 4 can be turned downwards to realize sealing of the grinding cylinder 1 or turned upwards to realize opening of the grinding cylinder 1; the upper overturning mechanism specifically comprises: the device comprises a slideway, a rocker arm and two parallel connecting rods connected through the rocker arm; the end surface of the movable cover plate 4 is provided with two vertical plates; the slideway is obliquely arranged on the inner side of one side plate; the opening and closing motor is arranged on the overturning bracket; two ends of one of the two connecting rods penetrate between the two vertical plates, one end of the other connecting rod is connected with the side plate, and the other end of the other connecting rod is connected with an output shaft of the opening and closing motor through a coupler; a vertical plate of the movable cover plate 4 is fixedly provided with a plug screw, and one end of the plug screw is positioned in the slideway. After the opening and closing motor is started, an output shaft of the opening and closing motor drives a connecting rod connected with the opening and closing motor, the connecting rod drives another connecting rod through a rocker arm, the movable cover plate 4 is driven to overturn because the other connecting rod is connected with the movable cover plate 4, the bottom of the movable cover plate 4 moves along a slideway through a plug screw, and finally the grinding cylinder 1 is closed; when the grinding cylinder 1 needs to be opened, the opening and closing motor rotates reversely.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A crushing and grinding device for soil samples, characterized in that it comprises: a grinding cylinder (1), a cutting grinding head (2), a grinding driving mechanism (3), a movable cover plate (4) and a turnover mechanism (5);
the grinding driving mechanism (3) is fixedly arranged at the bottom of the grinding cylinder (1), and an output shaft of the grinding driving mechanism (3) is connected with the cutting grinding head (2) in the grinding cylinder (1); the movable cover plate (4) is arranged at an opening of the grinding cylinder (1) and is used for opening/closing the grinding cylinder (1); the turnover mechanism (5) is connected with the grinding cylinder (1) and is used for realizing the up-and-down rotation of the grinding cylinder (1).
2. The crushing and grinding device for the soil sample according to claim 1, characterized in that the grinding driving mechanism (3) is a variable frequency motor having three modes of low speed, medium speed and high speed.
3. A crushing and grinding device for soil samples according to claim 1 or 2, characterized in that the cutting and grinding head (2) is of an upturned blade structure.
4. A crushing and grinding device for soil samples according to claim 1 or 2, characterized in that the grinding cylinder (1) is provided with a cleaning brush (6); the cleaning brush (6) is provided with a negative pressure adsorption device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910333837.0A CN111855335A (en) | 2019-04-24 | 2019-04-24 | A smash grinder for soil sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910333837.0A CN111855335A (en) | 2019-04-24 | 2019-04-24 | A smash grinder for soil sample |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111855335A true CN111855335A (en) | 2020-10-30 |
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ID=72952113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910333837.0A Pending CN111855335A (en) | 2019-04-24 | 2019-04-24 | A smash grinder for soil sample |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111855335A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112697555A (en) * | 2020-12-16 | 2021-04-23 | 西北大学 | Soil aggregate layering stripping off device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101750240A (en) * | 2009-12-29 | 2010-06-23 | 聚光科技(杭州)股份有限公司 | Method and device for pre-treating samples in moveable-type soil detection |
| CN107497530A (en) * | 2017-09-08 | 2017-12-22 | 朱玥 | A kind of grinding machine for Chinese herb medicines for being easy to discharging |
| CN206778631U (en) * | 2017-05-30 | 2017-12-22 | 河南格皓特农业科技有限公司 | A kind of rotation type pedotheque grinder |
| CN108356688A (en) * | 2018-02-12 | 2018-08-03 | 湖北高磁新材料科技有限公司 | A kind of magnetic core burr grinding device |
| CN207887038U (en) * | 2017-12-18 | 2018-09-21 | 浙江易承环境建设有限公司 | A kind of pedotheque mixing arrangement |
| CN208018749U (en) * | 2017-12-19 | 2018-10-30 | 南安市凯旋狼服饰制造有限公司 | A kind of Food Inspection sample mill |
| CN108745535A (en) * | 2018-07-23 | 2018-11-06 | 陶奇 | Convenient for the medicinal material grinder of discharging |
| CN208115882U (en) * | 2018-02-27 | 2018-11-20 | 福建农林大学 | One kind exempting from soil sample crusher of uncapping |
| CN209802795U (en) * | 2019-04-24 | 2019-12-17 | 北京兰友科技有限公司 | A smash grinder for soil sample |
-
2019
- 2019-04-24 CN CN201910333837.0A patent/CN111855335A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101750240A (en) * | 2009-12-29 | 2010-06-23 | 聚光科技(杭州)股份有限公司 | Method and device for pre-treating samples in moveable-type soil detection |
| CN206778631U (en) * | 2017-05-30 | 2017-12-22 | 河南格皓特农业科技有限公司 | A kind of rotation type pedotheque grinder |
| CN107497530A (en) * | 2017-09-08 | 2017-12-22 | 朱玥 | A kind of grinding machine for Chinese herb medicines for being easy to discharging |
| CN207887038U (en) * | 2017-12-18 | 2018-09-21 | 浙江易承环境建设有限公司 | A kind of pedotheque mixing arrangement |
| CN208018749U (en) * | 2017-12-19 | 2018-10-30 | 南安市凯旋狼服饰制造有限公司 | A kind of Food Inspection sample mill |
| CN108356688A (en) * | 2018-02-12 | 2018-08-03 | 湖北高磁新材料科技有限公司 | A kind of magnetic core burr grinding device |
| CN208115882U (en) * | 2018-02-27 | 2018-11-20 | 福建农林大学 | One kind exempting from soil sample crusher of uncapping |
| CN108745535A (en) * | 2018-07-23 | 2018-11-06 | 陶奇 | Convenient for the medicinal material grinder of discharging |
| CN209802795U (en) * | 2019-04-24 | 2019-12-17 | 北京兰友科技有限公司 | A smash grinder for soil sample |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112697555A (en) * | 2020-12-16 | 2021-04-23 | 西北大学 | Soil aggregate layering stripping off device |
| CN112697555B (en) * | 2020-12-16 | 2022-03-01 | 西北大学 | Soil aggregate layering stripping off device |
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