Soil sample grinding and screening device

Abstract

The invention discloses a soil sample grinding and screening device which comprises a rack, a control center, a drying and crushing mechanism, a layered grinding mechanism and a precise screening anddischarging mechanism. The drying and crushing mechanism comprises a sealed containing trough, a sealed feeding opening, an electric discharging opening, a one-way exhaust opening, a guide pipe, a stirring motor, a stirring crushing paddle and an inner heating network pipe. The layered grinding mechanism comprises a grinding box, a grinding disc locating column, a layered gear grinding disc, a drive motor, a raw material scraping plate and a grinding ball. The precise screening and discharging mechanism comprises a vibration screen frame, a layered precise screen, a screen bottom and a discharging door. By means of the soil sample grinding and screening device, soil sample grinding and screening can be automatically carried out in the same closed device, the screening period is shortened,the screening efficiency is improved, pollution of dust to the environment is reduced, operation of manual participation is reduced, screening stability of soil samples is improved, and accuracy of soil sample detection results can be improved easily.

Description

【Technical field】 [0001] The invention relates to the technical field of environmental detection equipment, in particular to the technical field of a soil sample grinding and screening device. 【Background technique】 [0002] Soil environment monitoring refers to the determination of environmental quality and its changing trend through the determination of representative values ​​of factors affecting soil environmental quality. At present, soil environment monitoring needs to go to the site to collect soil samples in advance. The soil samples taken are generally air-dried before testing and analysis. The soil samples after natural air-drying are manually crushed and put into sieves for classification and screening. The cycle is long, the efficiency is low, and a large amount of dust will be generated during the air-drying and hammering process to pollute the environment, and it is easy to cause screening errors due to different manual operations during the screening process, ...

AI Technical Summary

Problems solved by technology

At present, soil environment monitoring needs to go to the site to collect soil samples in advance. The soil samples taken are generally air-dried before testing and analysis. The cycle is long, the efficiency is low, and a large amount of dust will be generated during the air-drying and hammering process to pollute the environment, and it is easy to cause screening errors due to different manual operations during the screening process, which directly affects the accuracy of subsequent soil sample test results.

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