Grain drying machine and online moisture detection method thereof

The technology of a grain dryer and a detection method is applied in the direction of storing seeds by drying, material capacitance, etc., which can solve the problem of inability to detect moisture changes on-line, and achieve the effect of improving accuracy.

Inactive Publication Date: 2013-09-04
WUHAN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of the above invention is that it cannot implement online detection of moisture changes in the grain drying process to ensure the quality of grain drying.

Method used

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  • Grain drying machine and online moisture detection method thereof
  • Grain drying machine and online moisture detection method thereof
  • Grain drying machine and online moisture detection method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0038] see figure 1 , figure 2 , image 3 , Figure 4 and Figure 5 ., Install an online moisture detector in the middle of the grain dryer; install a distribution tray (2) and a vibrating motor (16) in the upper part.

[0039] An online moisture detection method adapted to the dryer is set, which includes the following process:

[0040] Such as figure 1 As shown in the figure, the grain is lifted by the hoist and falls from the grain inlet of the dryer to the distribution tray. Under the action of the vibrating motor B, the leveling section of the distribution pan distributes the grain evenly, and the thickness of the grain layer on the leveling section of the distribution pan is controlled to be between 20 and 100mm. The relative error of material layer thickness is less than 10%. The number of distribution channels on the distribution tray is the same as the number of disturbance bars. The end of each distribution channel is provided with a distributing port, and a...

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PUM

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Abstract

The invention discloses a grain drying machine and an online moisture detection method thereof. The grain drying machine is technically characterized in that an online moisture detector is disposed in the middle of the drying machine, a distribution disk and a vibrating motor are disposed on the upper portion of the drying machine, and online moisture detection in grain drying is achieved by means of even grain distribution, alternate frequency interference, online moisture detection, servo control, online variable-frequency regulation and manual local regulation. The grain drying machine has the advantages that structure is simple, grains move in the machine uniformly, the grains are dried and dewatered evenly, grain moisture to be removed can be monitored and regulated in real time, and dryness of the grains can be fully kept.

Description

Technical field: [0001] The invention belongs to the technical field of material drying equipment, and in particular relates to a grain dryer capable of monitoring, adjusting and controlling grain moisture, in particular to a grain dryer and an online moisture detection method thereof. Background technique [0002] At present, there are two main types of grain drying technology equipment at home and abroad: continuous type and intermittent type. The drying method of grain is mainly convection drying. More than 95% of grain dryers use hot air as the drying medium. Regardless of whether it is a continuous or intermittent grain dryer, the movement of grain in the dryer depends on the gravity of the grain itself, moving from top to bottom. In the grain dryer with hot air as the drying medium, there are angular boxes or mesh boxes for the drying medium to enter the dryer and flow out of the dryer. These angular boxes or mesh boxes are fixed. There will be various resistances to ...

Claims

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Application Information

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IPC IPC(8): G01N27/22A23B9/08
Inventor 刘启觉王继焕
Owner WUHAN POLYTECHNIC UNIVERSITY
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