A method for controlling the drying process of materials in a drying room based on the calculation of accumulated temperature

Abstract

The invention discloses a method for controlling drying process of drying room materials based on accumulated temperature calculation. The method comprises the following steps that step 1, a pluralityof temperature acquisition elements are synchronously arranged in a material loading trolley in the material loading process so as to submerge the temperature acquisition elements in materials and push the trolley to a drying position; step 2, a theoretical accumulated temperature calculation model and a balanced temperature calculation model are selected, and a temperature collection period, accumulated temperature control precision and accumulated temperature correction coefficient are set; step 3, theoretical accumulated temperature and balanced temperature are calculated; step 4, the equivalent accumulated temperature is calculated; step 5, the effective temperature is calculated; step 6, the real-time equivalent accumulated temperature is calculated; and step 7, according to the equivalent accumulated temperature, the real-time equivalent accumulated temperature and the accumulated temperature control precision, whether the drying process is stopped or not is judged. The method for controlling drying process of the drying room materials based on the accumulated temperature calculation improves the accuracy and stability of measurement and control, reduces the complexity of operation, and reliably quantifies and guarantees the quality of the materials.

Description

technical field [0001] The invention belongs to the technical field of material drying process control methods, in particular to a material drying process control method in a drying room based on accumulated temperature calculation. Background technique [0002] Fruits and vegetables, Chinese medicinal materials and other materials need to be dried to prolong the storage period and quality. One of the drying methods is to use hot air in the drying room to dry. The degree of heating of the materials in the drying room is closely related to the drying quality of the materials. In practice, no simple and fast indicators have been proposed to reflect the degree of heating of materials and be applied to the control of the drying process and subsequent quality traceability. [0003] The current drying room generally adopts the method of sampling and measuring moisture on a regular basis as a method of process control. That is, during the drying process, the drying is suspended or...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a drying room material drying process control method based on accumulated temperature calculation. On the one hand, it can complete the real-time detection and recording of the heating degree of the material, and on the other hand, the process control is carried out by using accumulated temperature detection instead of moisture detection; In the prior art, the control method of the material drying process in the drying room is low in automation and poor in accuracy.

Images