CN211303727U

CN211303727U - Laboratory is with hierarchical drum-type soil screening ware

Info

Publication number: CN211303727U
Application number: CN201921681697.8U
Authority: CN
Inventors: 郭正刚; 杨鼎; 徐海鹏; 庞晓攀; 李捷
Original assignee: Lanzhou University
Current assignee: Lanzhou University
Priority date: 2019-10-09
Filing date: 2019-10-09
Publication date: 2020-08-21
Anticipated expiration: 2029-10-09

Abstract

The utility model relates to a laboratory soil sample screening technical field specifically is a laboratory is with hierarchical drum-type soil screening ware, has solved the complicated and unable problem of screening in grades of current soil screening equipment operation, including quick-witted case, be provided with two end frames on quick-witted case, be provided with the sampling hopper through upper end frame, be provided with the chuck on the sampling hopper, install the main shaft on two end frames, install the motor on upper end frame, install drum screening group on the main shaft, drum screening group comprises first filter cylinder, second filter cylinder and urceolus, is provided with the sieve mesh on first filter cylinder and the second filter cylinder, machine incasement portion installs one-level soil sample soil casket, second grade soil sample soil box and abandonment soil sample soil box in proper order. This device is through the drum screening group that adopts automatic formula, when realizing multistage screening, guarantees screening efficiency, save time.

Description

Laboratory is with hierarchical drum-type soil screening ware

Technical Field

The utility model relates to a laboratory soil sample sieves technical field, specifically is a laboratory is with hierarchical drum-type soil screening ware.

Background

The soil is a foundation bed for the growth of various plants on land, regulates and controls nutrients, water, energy and the like required by the growth of various plants, and is an important environmental factor influencing the growth and development of the plants. The pretreatment of the soil sample is an important link for analyzing various nutrients in soil. However, when the soil nutrient is researched, the soil sample treatment required for analyzing different soil nutrient elements is different, and especially the requirement on the size of the soil particle size is more strict. Therefore, the pretreatment of the experiment requires screening of different particle sizes on the same soil sample. At present, a mode of combining soil sieves with different mesh diameters is adopted in a laboratory, and the soil is shaken in a reciprocating mode by hands to enable the soil to leak through the sieves with different mesh diameters under the action of gravity to obtain soil samples with different mesh diameters. Secondly, the relevant utility model patent of disclosing, if application number is 201611016813.5 a laboratory is with hack soil screening machine, 201820122191.2 a hack soil screening trinity device that mixes soil, 201520693384.X a novel experimental soil screening device, above-mentioned device has overcome the problem that needs to use both hands shake among the soil screening process, nevertheless do not consider the clearance of abandonment soil in the screen cloth on the one hand, on the other hand does not consider the soil sample that needs to obtain different particle sizes among the actual work, can't separate to different soil particle sizes, and above-mentioned device is complicated, dismantle the screen cloth and clear up abandonment soil and often need a plurality of steps just can accomplish. Because the quantity of laboratory soil samples is often large, the device disclosed by the invention needs to be repeatedly disassembled in the actual operation process, waste soil samples in the screen mesh are cleaned, and the screen meshes with different mesh diameters are replaced, so that the time-saving and labor-saving effects cannot be achieved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a laboratory is with hierarchical drum-type soil screening ware, the effectual complicated and unable classified screening's of current soil screening equipment operation problem of having solved, this device is through the drum screening group who adopts automatic formula, when realizing multistage screening, guarantees screening efficiency, save time.

In order to achieve the purpose, the technical scheme adopted by the application is as follows:

the utility model provides a laboratory is with hierarchical drum-type soil screening ware, includes quick-witted case 1, is provided with two end frames 2 on quick-witted case 1, is provided with sampling hopper 3 through the upper end frame, be provided with chuck 4 on the sampling hopper 3, install main shaft 5 on two end frames 2, install motor 6 on upper end frame 2, install drum screening group 7 on the main shaft 5, drum screening group 7 comprises first filter cylinder 8, second filter cylinder 9 and urceolus 10, is provided with sieve mesh 11 on first filter cylinder 8 and the second filter cylinder 9, machine case 1 is inside to be installed one-level soil sample soil casket 15, second grade soil sample soil casket 16 and abandonment soil sample soil casket 17 in proper order.

The inclination angle of the drum screening group 7 is 15-45 degrees.

The first screening cylinder 8, the second screening cylinder 9 and the outer cylinder 10 are sequentially installed from inside to outside, and the lengths of the first screening cylinder, the second screening cylinder and the outer cylinder are sequentially reduced.

The sieve holes 11 arranged on the first sieve cylinder 8 are larger than the sieve holes 11 arranged on the second sieve cylinder 9.

A first guide plate 13 and a second guide plate 14 are arranged in the case 1, the first guide plate 13 corresponds to the outer cylinder 10, and the second guide plate 14 corresponds to the second screening cylinder 9.

The lower end of the first guide plate 13 corresponds to the position of a first soil sample box 15, and the lower end of the second guide plate 14 corresponds to the position of a second soil sample box 16.

The first screening cylinder 8 corresponds to the waste soil sample box 17 through the lower end frame 2 and the side wall of the case 1.

Spiral baffles 12 are arranged between the first screening cylinder 8 and the main shaft 5, between the first screening cylinder 8 and the second screening cylinder 9, and between the second screening cylinder 9 and the outer cylinder 10.

The utility model has the advantages that: this laboratory is with electronic drum-type soil screening ware has adopted simple mechanical construction to replace simple manual sieve, utilizes the centrifugation and the action of gravity that soil particles received at rotatory in-process, separates out the soil of required particle diameter from the screen cylinder, then through the action of gravity among the required soil sample separator of entering, and abandonment soil sample falls to in the abandonment soil sample separator. Meanwhile, the sieve holes are set according to the particle size of the soil sample required by the experiment. Compared with the prior art, the method has the advantages of convenience and practicability, and the complex step of cleaning the waste soil sample is omitted, so that the precious time is saved for the majority of scientific researchers. The grading screening mode can realize the more accuracy of soil sample, guarantees the quality of screening soil.

Drawings

FIG. 1 is a first schematic structural diagram of the present invention;

FIG. 2 is a second schematic structural view of the present invention;

FIG. 3 is a sectional view of the structure of the present invention;

FIG. 4 is a schematic view of a drum screening group configuration;

shown in the figure: the device comprises a case 1, an end frame 2, a sample feeding hopper 3, a chuck 4, a main shaft 5, a motor 6, a drum screening group 7, a first screening cylinder 8, a second screening cylinder 9, an outer cylinder 10, a sieve pore 11, a spiral baffle 12, a first guide plate 13, a second guide plate 14, a primary soil sample box 15, a secondary soil sample box 16 and a waste soil sample box 17.

Detailed Description

The technical solution of the present invention is further described by the following specific embodiments with reference to the accompanying drawings:

example 1

As shown in figures 1-4, the grading drum type soil screening device for the laboratory adopts a multi-stage screening automatic screening mode, and ensures the screening efficiency and saves time while realizing multi-stage screening. The specific structure is as follows.

Case 1 is upper end opening case, and the upper end is the slope dress, and lower extreme and highest end all are provided with end frame 2, installs main shaft 5 on the upper and lower end frame 2, and end frame 2 of upper end is used for installing sampling hopper 3 and motor 6, and motor 6 drives main shaft 5 rotation through belt transmission's mode. The sample feeding hopper 3 is provided with a chuck 4, and the feeding amount is controlled by the chuck 4.

The main shaft 5 is provided with a drum screening group 7, the structure of the drum screening group 7 is shown in figures 3 and 4, and the inclination angle of the drum screening group 7 is 15-45 degrees, so that the internal soil can automatically fall. The first screening cylinder 8, the second screening cylinder 9 and the outer cylinder 10 are shown, and when the screening device is installed, the first screening cylinder 8, the second screening cylinder 9 and the outer cylinder 10 are sequentially distributed from inside to outside. Meanwhile, spiral baffles 12 are arranged between the first screening cylinder 8 and the main shaft 5, between the first screening cylinder 8 and the second screening cylinder 9 and between the second screening cylinder 9 and the outer cylinder 10, and the slow screening and falling of the soil in the spiral baffles 12 are realized. Simultaneously be provided with sieve mesh 11 on first sieve tube 8 and the second sieve tube 9, sieve mesh 11 that the specification of sieve mesh 11 is set up for first sieve tube 8 is greater than the sieve mesh 11 that sets up on the second sieve tube 9, and concrete screening is: large-particle soil is placed in the first screening cylinder 8, medium-particle soil is placed in the second screening cylinder 9, and small-particle soil is placed in the outer cylinder 10.

The lengths of the first screening cylinder 8, the second screening cylinder 9 and the outer cylinder 10 are reduced in sequence, and the functions of the screening cylinders are convenient for collecting soil.

The soil is collected through a primary soil sample box 15, a secondary soil sample box 16 and a waste soil sample box 17. As shown in fig. 3, a first baffle 13 and a second baffle 14 are disposed inside the cabinet 1. The upper end of the first guide plate 13 corresponds to the position of the outer cylinder 10, and the lower end of the first guide plate 13 corresponds to the position of the first soil sample box 15. The upper end 4 of the second guide plate 1 corresponds to the position of the second screening cylinder 9, and the lower end of the second guide plate 14 corresponds to the position of the second-level soil sample box 16. Meanwhile, the first screening cylinder 8 corresponds to the waste soil sample box 17 through the lower end frame 2 and the side wall of the case 1. The structure is that: the small-particle soil falling from the outer cylinder 1 is placed in the first-level soil sample box 15, the medium-particle soil falling from the second screening cylinder 9 is placed in the second-level soil sample box 16, and the large-particle soil falling from the first screening cylinder 8 is placed in the waste soil sample box 17, so that the function of classified collection is realized.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a hierarchical drum-type soil screening ware is used in laboratory, includes quick-witted case, is provided with two end frames on quick-witted case, is provided with the sampling funnel through the upper end frame, be provided with chuck, its characterized in that on the sampling funnel: the machine box is characterized in that main shafts are installed on the two end frames, motors are installed on the upper end frames, drum screening groups are installed on the main shafts and comprise first screening drums, second screening drums and outer drums, screening holes are formed in the first screening drums and the second screening drums, and a first-level soil sample box, a second-level soil sample box and a waste soil sample box are sequentially installed inside the machine box.

2. The laboratory scale drum-type soil screen of claim 1, wherein: the inclination angle of the drum screening group is 15-45 degrees.

3. The laboratory scale drum-type soil screen of claim 1, wherein: first sieve cylinder, second sieve cylinder and urceolus are by interior and outer installation in proper order, and length reduces in proper order.

4. The laboratory scale drum-type soil screen of claim 1, wherein: the sieve holes arranged on the first screening cylinder are larger than the sieve holes arranged on the second screening cylinder.

5. The laboratory scale drum-type soil screen of claim 1, wherein: a first guide plate and a second guide plate are arranged in the case, the first guide plate corresponds to the outlet of the outer cylinder, and the second guide plate corresponds to the outlet of the second screening cylinder.

6. The laboratory graded drum-type soil screen of claim 5, wherein: the lower end of the first guide plate corresponds to the position of the first soil sample box, and the lower end of the second guide plate corresponds to the position of the second soil sample box.

7. The laboratory graded drum-type soil screen of claim 1, wherein: the first screening cylinder corresponds to the side wall of the case and the waste soil sample box through the lower end frame.

8. The laboratory graded drum-type soil screen of claim 1, wherein: spiral baffles are arranged between the first screening cylinder and the main shaft, between the first screening cylinder and the second screening cylinder, and between the second screening cylinder and the outer cylinder.