A sorting and filtering device

Abstract

The invention discloses a graded screening device, which relates to the technical field of screening devices, and comprises a casing, a vibrating assembly and several screening assemblies. The upper end of the casing is provided with several feeding ports, and one feeding port corresponds to Screening assembly, the screening assembly includes a multi-stage screening element and several containing elements, the containing element is located outside the casing, the multi-stage screening element is located inside the casing, the feed inlet is located above the multi-stage screening element, and multiple The inside of the multi-stage screening element communicates with the feed port. The lower end of the multi-stage screening element protrudes from the housing and is located above the containing element. The materials can be classified in the multi-stage screening element and fall into each containing element respectively. The vibrating component can drive the vibration of each multi-stage screening element, and make the multi-stage screening element screen the material. The grading and filtering device can improve screening efficiency and save labor.

Description

technical field [0001] The invention relates to the technical field of screening devices, in particular to a graded screening device. Background technique [0002] Soil analysis is the qualitative and quantitative determination of soil composition and / or physical and chemical properties. It is the basic work of soil formation and development, fertility evolution, soil resource evaluation, soil improvement and rational fertilization research. An important means of environmental quality assessment. To carry out physicochemical analysis of soil, it is necessary to carry out particle classification of soil. [0003] Soil samples are the material conditions for physical and chemical analysis of soil in environmental geography. Soil samples collected from the field environment need to be processed by multiple procedures before they can be applied to analysis operations. The main operation procedure is to filter through analytical sieves. The structure of the analysis sieve is si...

AI Technical Summary

Problems solved by technology

[0005] (1) There is no dust elimination technology and measures, and there is dust pollution in the operating environment;

[0006] (2) The screening process is complicated and increases labor intensity;

[0007] (3) It does not have the function of particle sorting, recycling and loading, which reduces the operating time;

[0008] (4) It is only suitable for the screening and sorting of a single sample, and cannot realize the simultaneous operation and operation of multiple samples;

[0009] ⑸Plane screening and sorting can easily cause particles to be mixed with each other, which reduces the efficiency of screening and sorting;

[0010] ⑹The operation mode standard is low, and it is impossible to establish a standardized operation environment;

[0011] ⑺The equipment positioning method is unscientific, which is not conducive to safety protection

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