Sample drying device

Abstract

The invention discloses a sample drying device, which comprises a box body, a rotating shaft and a driving element, wherein the rotating shaft is vertically arranged in the box body; the bottom end ofthe rotating shaft extends into the box body to be connected with the driving element, and is driven to rotate by the driving element; more than one layer of sample discs in synchronous rotation withthe rotating shaft is fixedly arranged on the rotating shaft; a heating assembly used for heating air in the box body is arranged in the box body. The sample drying device provided by the invention has the advantages that the structure is simple; the drying efficiency is high, and the like.

Description

technical field [0001] The invention mainly relates to the technical field of sample drying, in particular to a sample drying device. Background technique [0002] In the field of sample drying, such as the field of coal quality analysis, there are slimy fluid coal samples, such as peat, etc. It is necessary to prepare samples of such coal samples, and then send them to the laboratory for coal characteristic analysis, because they are muddy Liquid coal samples cannot be directly sampled, and need to be dried at low temperature without damage to remove water before sample preparation. The prepared coal sample is a representative coal sample of a batch of coal, which is directly related to the pricing and quality of large batches of coal samples. Therefore, how to quickly, effectively and non-destructively dry the muddy fluid coal sample is very important. In addition, in the field of environmental protection, there are also many substances in a mixed state of solid-liquid an...

AI Technical Summary

Problems solved by technology

Since the dried sample needs to be analyzed for components, if other solid substances are volatilized during drying, it will affect the subsequent sample analysis

[0005] 2. The surface of some paste, colloid, jelly, slurry, floc, and sticky samples is dried by air blowing. There are requirements for the thickness of the sample, and the sample needs to be laid on the sample tray and the thickness of the laying needs to be very thin. , leading to a large area occupied by the sample plate, resulting in a large equipment volume

However, during the drying process, the surface of the sample dries first, and then solidifies after drying, which hinders the penetration of moisture from the inside and affects the drying efficiency.

At the same time, the moisture inside the sample diffuses from the inside to the surface by natural diffusion, and the diffusion efficiency is low, which affects the drying efficiency

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