Drying cylinder for carrying out radiation heating on soil sample

A technology for radiant heating and soil samples, which is used in the preparation of test samples, non-progressive dryers, heating devices, etc., which can solve the problems of long sample preparation cycle, low sample preparation efficiency, and large floor space.

Pending Publication Date: 2020-10-30
北京兰友科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional air-drying method is highly dependent on the natural environment, and is greatly affected by natural factors such as climate, season, and weather, resulting in a longer sample preparation cycle, more sample accumulation, larger floor space, and low sample preparation efficiency.

Method used

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  • Drying cylinder for carrying out radiation heating on soil sample
  • Drying cylinder for carrying out radiation heating on soil sample
  • Drying cylinder for carrying out radiation heating on soil sample

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: see attached figure 1 , a drying cylinder for radiative heating of soil samples. The drying cylinder 1 is a closed cylinder made of light-transmitting material. When working, the drying cylinder 1 rotates by itself and the inside is in a negative pressure state, and the drying cylinder 1 is equipped with Radiation heating device 2 heats the sample in it;

[0021] The drying cylinder 1 in this example is made of quartz or borosilicate, and the radiation heating device 2 is a heating rod capable of generating infrared light waves.

[0022] See attached figure 2 , the specific structure of the drying cylinder 4 includes: a cylinder body 11 and at least one bung 12; 12 is provided with a suction hole for communicating with the suction device. The self-rotation of the drying drum 1 can be realized through the cooperation of idler rollers and transmission sprocket wheels or belt transmission, and can also be realized by arranging other methods such as rotati...

Embodiment 2

[0025] Embodiment 2: see attached image 3 , on the basis of Example 1, further, in order to ensure that the original components of the soil sample in the drying cylinder 1 are not lost during the sample preparation process, the connecting pipeline between the air extraction hole and the air extraction device is connected in series and filled with adsorption material The adsorption device 5; activated carbon or modified composite material is housed in the adsorption device 5, which is used to adsorb volatile organic compounds in the soil sample, or volatile inorganic elements such as mercury and arsenic, and then the adsorbed The material was backfilled into the soil sample.

Embodiment 3

[0026] Embodiment 3: see attached Figure 4 , in order to realize the rise and fall of the drying cylinder 1, on the basis of embodiment 1 or 2, the drying cylinder 1 and the radiation heating device 2 are installed on the lifting plate 3; in this example, the lifting plate 3 uses slideways and push rods way to achieve rise and fall;

[0027] Further, for the convenience of taking and placing soil samples in the drying cylinder 1, bearing seat assemblies 4 are provided on the left and right sides of the lifting plate 3, and the bearing seat assemblies 4 are connected with the peripheral rotating mechanism. , through the rotating mechanism, the drying cylinder 1 and the radiation heating device 2 are raised or lowered at a certain angle as a whole.

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Abstract

The invention relates to the technical field of soil sample preparation, in particular to a cylinder for drying a soil sample. A drying cylinder for carrying out radiation heating on a soil sample isa closed cylinder body made of a light-transmitting material, and during working, the drying cylinder rotates and is in a negative pressure state inside, so that water evaporation is accelerated, andthe drying speed is increased; and meanwhile, a radiation heating device is arranged outside the drying cylinder to heat a sample in the drying cylinder, so that rapid reduction of the temperature ofthe sample caused by heat absorption when the volume of gas in the cylinder is expanded due to negative pressure is eliminated, the sample in the cylinder is maintained in a reasonable interval of normal room temperature and temperature upper limit requirements related to soil sample preparation, and the sample drying efficiency is ensured. Automatic drying of the soil sample is achieved, the soilsample is evenly heated by adopting a rotary heating mode, and the soil sample can rapidly and efficiently achieve the drying degree meeting the requirement; and therefore, the sample preparation period is shortened, the occupied area for sample preparation is saved, and the sample preparation efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of soil sample preparation, in particular to a cylinder for drying soil samples. Background technique [0002] Soil sample preparation refers to the process of mixing, drying, grinding and sieving soil samples after they are collected from the field. After the soil samples collected from the field are transported to the laboratory, in order to avoid mildew and deterioration caused by the action of microorganisms, all soil samples should be placed in an air-dried wooden tray immediately, and spread into a thin layer of 2-3cm. Remove the bricks, tiles, stones, lime concretions, rhizomes, animal and plant residues mixed in the soil, crush them with wooden sticks in a timely manner, turn them frequently, and place them in a cool place to let them air dry slowly. Do not expose the samples to direct sunlight at high temperature. The air-dried place should prevent the pollution of acid, alkali and other gases and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F26B11/04F26B23/04F26B25/16G01N1/44
CPCF26B11/04F26B23/04F26B25/16G01N1/44
Inventor 史晓忠马放均
Owner 北京兰友科技有限公司
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