Online corn seed drying, measurement and control system

Abstract

An online corn seed drying, measurement and control system is mainly formed by a multipoint connection temperature sensor, a temperature collecting unit, an analog collecting module, a monitoring industrial computer and software, a voltage stabilizing power supply and a UPS (uninterrupted power supply) for power-off delay; the temperature detection of the field temperature sensor adopts a thermalcouple compensation lead, and the compensation lead forms a closed loop by a high-temperature spot-welding processing and cold-end prolonging technology; a mode of obtaining an average value by multipoint connection is adopted, and measurement and control points are conveniently, reasonably and uniformly distributed in upper and lower bins. Corns in the bins adopt an oblique heaping mode in different bins. The computer software has the functions of dynamic display realizing, real-time and historical curve displaying, process operation prompting and event recording, pressure difference alarm, historical data inquiring, drying state displaying, drying result recording, report table printing, and real-time displaying of bin number of a drying bin, seed variety, bin filling weight, drying starting time, drying time, temperature difference, fan direction and the like in the whole production process, the drying result is subjected to database link, and is automatically added, recorded in real time and stored, and historical production data can be traced.

Description

technical field [0001] The invention belongs to the technical field of seed drying, in particular to online monitoring and control of a drying system. Background technique [0002] Since 2000, my country has already become the second largest seed market in the world after the United States. Corn, known as the gold in agricultural product investment, is the main component of the seed market. In the consumption structure of corn, it mainly consists of two chains. The first is agricultural feed, most of which are used to breed pigs; the other is industrial use, which is more widely used downstream and has a longer industrial chain, involving alcohol, pharmaceutical chemicals, food additives, biofuels and other fields. The proportion of uses has increased from 27% in the previous two years to the current 33%. It is worth noting that since 2011, China has transformed from a net exporter of corn to a net importer, and this trend will become the norm. [0003] Under such circums...

AI Technical Summary

Problems solved by technology

[0003] Under such circumstances, the development and structural adjustment of my country's corn seed industry has entered the fast lane. However, due to the late start, my country's seed companies still focus on "multiple, scattered and small" and pursue "short, flat and fast". The degree of industrial agglomeration is still low, the degree of specialization is not high, and the quality control of seeds is more difficult. The hidden dangers to the safety of seed production cannot be underestimated

Generally, seed companies adopt methods such as hot air drying under normal pressure or even natural drying. They only control the temperature and drying time, which cannot balance dehydration and dehumidification. Change and fragmentation, no storage and transportation, and lower germination rate

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