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Grain drying control system and drying control method thereof

A control system and drying control technology, applied in the sequence/logic controller program control, electrical program control and other directions, can solve the problems of low degree of automation, high cost, manual operation and control equipment operation error, etc. Low equipment consumption, complete functions, and the effect of reducing the phenomenon of dust and the content of toxic and harmful substances

Inactive Publication Date: 2016-11-16
黑龙江北谷创新科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of low automation degree of existing grain drying equipment, easy operation error and high cost in manual operation and control equipment operation, and propose a grain drying control system and its drying control method

Method used

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  • Grain drying control system and drying control method thereof

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specific Embodiment approach 1

[0022] The control system for grain drying in this embodiment comprises: a tower body, an early stage environmental protection treatment module for primary quality management of coal sources and grain sources, an energy delivery module for controlling valves to transport heat sources and wind sources, and a The heat exchange and air distribution module for controlling temperature and air volume exchange, the temperature control boiler module for controlling the boiler to generate a suitable temperature, the coal feeding system module for controlling the automatic coal feeding device for coal feeding, and the controlling gas-liquid purification device for tailing The purification treatment module for waste gas and waste purification treatment at the end, the monitoring module for controlling feedback signals and monitoring, the digital acquisition module for real-time online collection of production status, the metering module for grain output statistics, and the drying technical...

specific Embodiment approach 2

[0024] Different from Embodiment 1, in the grain drying control system of this embodiment, the digital acquisition module includes temperature and moisture sensors

specific Embodiment approach 3

[0025] The grain drying control method of this embodiment,

[0026] Step 1. Through the preliminary environmental protection treatment module, the primary screening of large sand and gravel in the coal source, the preliminary desulfurization, denitrification and dust treatment are automatically carried out, and the primary selection of sundries in the grain source is actively carried out;

[0027] Step 2. Perceive the state of the hot air obtained in the tower body through the heat exchange and air distribution module, monitor the value of the analog signal of wind speed, temperature and humidity outside the tower body through the monitoring module, and collect the moisture and temperature in the tower body online in real time through the digital acquisition module The value of the analog signal, and convert the value of the collected analog signal into a digital signal value through the digitization module;

[0028] Step 3. Compare the obtained moisture and temperature values...

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Abstract

The invention relates to a grain drying control system and a drying control method thereof, which belong to the field of grain drying control, and aim to solve the problems that the existing grain drying equipment is low in automation degree, manual operation and control equipment operation are prone to misoperation, and the cost is high. The grain drying control system comprises a tower body, wherein an early-stage environmental protection treatment module, an energy transferring module, a heat-exchange air-distribution module, a temperature control boiler module, a coal feeding system module, a purification treatment module, a monitoring module, a digital acquisition module, a metering module and a digitization module are installed on the tower body, are connected with a PLC module outside the tower body, and are powered by means of a power supply control module; and the power supply control module is connected with the PLC module and a communication module. The grain drying control method comprises the steps of: comparing values of moisture and temperature inside the tower body as well as wind speed, temperature and humidity outside the tower body with standard values; and controlling an automatic coal feeding device and a boiler through the PLC module to perform operations of continuance and suspension of heating. The grain drying control system and the drying control method thereof have the advantages of being capable of automated control, and being high in heat exchange rate and low in cost.

Description

technical field [0001] The invention relates to a grain drying control system and a drying control method thereof. Background technique [0002] Heilongjiang Province is a large grain province in the country. With the development of economy and technology, grain production has been increasing in many ways, but it is difficult to sell grain at a reasonable price, resulting in increased pressure on storage. There is obviously insufficient capacity in the important drying link of the existing grain storage process. For example, the degree of automatic control of drying equipment is low, and the reliability of operation is poor. When storing high-moisture grains, it is difficult to achieve online rapid measurement due to complex influencing factors. The phenomenon of time lag; the auxiliary hot blast stove of the drying tower is a heating stove, although the cost is low, but due to the unsatisfactory solution to the expansion coefficient, the reliability of the hot blast stove ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/05
CPCG05B19/05
Inventor 张宝祥张楠
Owner 黑龙江北谷创新科技发展有限公司
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