Airflow sampling method and device for grain in grain depot

A sampling device and grain depot technology, applied in the direction of sampling device, etc., can solve the problem of ineffective sampling and other problems, and achieve the effect of good promotion and use value, cost economy and effective method.

Pending Publication Date: 2019-08-09
山东省地质矿产勘查开发局第一地质大队
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Problems solved by technology

If the sampling depth exceeds 10 meters or even 40 meters

Method used

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  • Airflow sampling method and device for grain in grain depot
  • Airflow sampling method and device for grain in grain depot
  • Airflow sampling method and device for grain in grain depot

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[0106] In the following, the air sampling device for grain in the grain store of the present invention will be described in detail below with reference to the accompanying drawings.

[0107] As shown in the drawings, the airflow sampling device for grain in the grain store of the present invention has a structure including an air compressor 2 (or peripheral) above the grain store 1, a gyrator 6, a sampling tap 4, and a sampling tube 9.

[0108] An air compressor 2 is provided on the base 13 on the top surface of the grain store 1, and the output high-pressure air pipe 3 of the air compressor 2 is connected to the sampling tap 4,

[0109] The sampling faucet 4 outputs the grain sample collection pipeline 5,

[0110] A gyrator 6 is connected to the top of the sampling faucet 4. The sampling faucet is set as a sampling tube composed of an inner tube 7 and an outer tube 8. The gyrator 6 drives the sampling tube 9 to rotate; the high-pressure air pipe 3 connects the outer tube and the inner...

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PUM

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Abstract

The invention provides an airflow sampling method and device for grain in a grain depot, and belongs to the technical field of agricultural product inspection. As for the airflow sampling method and device, on the outside world of the grain depot, high-pressure airflow is used for being introduced into a grain heap through an airflow conveying pipeline, the high-pressure airflow and backflow of the high-pressure airflow are integrated on a sampling tube being composed by sleeving an inner tube and an outer tube, the shell side of a circular gap space between the outer wall of the inner tube and the inner wall of the outer tube of the sampling tube is used as a channel for inputting the high-pressure airflow, the tube side of an inner tube cavity is used as a channel for backflow of the high-pressure airflow, the high-pressure airflow flows back to the tube side of the inner tube at the tail end of the shell side, backflow air in the tube side of the inner tube carries grain particles to flow back to the outside world of the grain depot to obtain a sample. According to the airflow sampling method and device for the grain in the grain depot, high-pressure air is combined with the special device to solve the problem of grain sampling in the deep grain depot, meanwhile, the damage and pollution of the high-pressure air to the grain is minimal, the method is effective, the cost is economical, and the sampling effect is good.

Description

technical field [0001] The invention relates to the technical field of agricultural product inspection, in particular to a grain depot airflow sampling method and a device thereof. Background technique [0002] In the grain depot, the grain sampling inspection is generally collected through the sampling tube sampling or vacuum pump suction sampling, and effective sampling can be realized within a sampling depth of 8 meters. If the sampling depth exceeds 10 meters or even reaches 40 meters, conventional sampling methods cannot effectively sample. In particular, it is necessary to innovate a new sampling method, which can effectively solve the problem of grain sampling in large grain depots. At the same time, the sampling depth should be accurate and the damage to grain should be small. Contents of the invention [0003] The technical task of the present invention is to solve the deficiencies of the prior art, and provide an airflow sampling method and device for grain in a...

Claims

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Application Information

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IPC IPC(8): G01N1/14
CPCG01N1/14
Inventor 王玉吉刘珂侯庆国
Owner 山东省地质矿产勘查开发局第一地质大队
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