Automatic screening device for sample particles

Abstract

The invention relates to an automatic screening device for sample particles. The automatic screening device comprises a sample inlet, an automatic screening mechanism, an automatic overturning mechanism, a screening mesh, a synchronous belt, bearings, a coupling, driving motors, a sample outlet and other parts. According to the automatic screening device, the whole system adopts an integrated design scheme, the sample feeding, screening, overturning and sample discharging stations are designed in a communicating manner from top to bottom, and the vibratory screening process is achieved by adopting a rotary reciprocating vibration method; the automatic screening device can be cleaned through high-pressure airflow and water flow, thereby ensuring that the cleaning process is convenient, no residue of the sample particles is left, and the cross contamination of samples is avoided; the driving motors can be adopted for linearly regulating the amplitude and the frequency of screening actions, thereby meeting the screening requirements of the samples of various types; the replacement of a screening mesh mechanism is convenient, different screening meshes can be replaced as required, andthen the screening, with different mesh numbers, of the sample particles can be completed; and meanwhile, the whole system adopts a modular design concept and can be conveniently combined with other devices for use, and the own superposition of a plurality of automatic screening devices can also be allowed, thereby meeting the technical requirements for the multi-layer and stage-by-stage screeningof the samples according to the mesh numbers.

Description

technical field [0001] The invention relates to the technical field of automatic screening of sample particles, in particular to an automatic screening device for sample particles. Background technique [0002] The pre-processing link of agricultural sample testing includes soil testing, chemical fertilizer testing, etc. Sample pre-processing is very important for analysis and testing, and it occupies more than 60% of the entire analysis process, and the main analysis error also comes from the sample pre-processing link. As an important link in the pretreatment of solid samples, sieving has a great influence on the results of analysis and detection. [0003] At present, the pretreatment of solid samples basically depends on manual completion, the degree of automation is low, the processing process is complex, time-consuming, and inefficient, especially the sieving process is basically done manually, which seriously pollutes the surrounding environment. Some automatic sievin...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a device for automatic sieving of sample particles in view of the shortcomings of manual sieving and traditional sieving devices, so as to solve the problem of low automation, complex processing, long time-consuming and low efficiency of the current sample particle sieving process. , the problem of not being easy to clean

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