Pretreatment device for soil detection

Abstract

The invention discloses a pretreatment device for soil detection in the technical field of pretreatment devices for soil detection, which comprises a device frame, the device frame is a U-shaped frame, a primary crushing device is arranged on the upper side of the device frame, and a secondary crushing device is arranged outside the primary crushing device; the second-stage crushing box comprises a fixed box and a movable box, the central angle corresponding to the cambered surface of the fixed box is 220-240 degrees, the two ends of the fixed box are fixedly connected with the device frame through a plurality of fixed plates, the movable box is connected with the device frame through a fixing device, and the second-stage screening holes are formed in the lower portion of the movable box. The pretreatment device has high crushing efficiency and soil is prevented from blocking screen holes.

Description

Technical field[0001]The present invention relates to the technical field of pretreatment device for soil detection, and is specifically a pretreatment device for soil detection.Background technique[0002]Soil testing refers to the determination of environmental quality (or pollution level) and its change trend by determination of representative values ​​affecting soil environmental quality factors. We usually say soil monitoring refers to soil environmental monitoring, which generally includes a dot sampling, sample preparation, analysis method, result, characterization, data statistics, and quality evaluation.[0003]The soil of the dot sampling needs to be sufficiently mixed to ensure the accuracy of the test results, but the existing soil pulverizer is only set to only one pulverket when working, and the soil is directly smashed to the minimum particles, which will result in a large amount. The soil is stacked in the pulverizer, and the soil has caused a substantial soil that is le...

AI Technical Summary

Problems solved by technology

[0003] The soil for spot sampling needs to be fully mixed and crushed to ensure the accuracy of the test results. However, the existing soil crushing device only has one crushing box when it is working, and directly crushes the soil to the smallest particles at one time, which will cause a lot of damage. Soil is accumulated in the crushing box, and a large amount of soil accumulation will make it difficult for the soil with qualified particle size to pass through the sieve hole, which will cause the soil with qualified particle size to be continuously crushed, reducing the effective collision rate of the crushing knife; , because the weight is too light, even if it is hit by a high-speed rotating pulverizer, it is not easy to split again

Furthermore, the existing pulverizing devices generally only have the pulverizing knife rotating at a high speed, while the pulverizing box is stationary, so that the suddenly sunken soil will escape the pulverizing range of the pulverizing knife, reducing the pulverizing efficiency, and the sunken soil will block the sieve hole

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