Pneumatic dust removing device based on PLC controlling

Abstract

The present invention is a pneumatic dust removal device based on PLC control. The pneumatic dust removal device based on PLC control selects S7-300PLC as the control core, selects detection equipment such as pressure difference sensors, temperature and humidity sensors, and spark sensors, and uses PLC to control frequency conversion speed regulators, Solenoid valves, cylinders and other actuators realize automatic regulation. The pressure sensor is installed on the main ventilation pipeline, detects the pressure in the main pipeline in real time, and automatically adjusts to a suitable fan speed through the frequency converter. The junction box of the temperature sensor is equipped with a transmission module, which uses a dedicated chip for amplification and linearization processing, which improves the measurement accuracy of the sensor, does not require compensation at the cold end, has a large load capacity, a long transmission distance, and strong anti-interference ability. The humidity sensor is a digital temperature and humidity sensor, with full range calibration and two-wire digital interface, which greatly shortens the research and development time, simplifies the peripheral circuit and reduces the cost.

Description

technical field [0001] The invention relates to a pneumatic dust removal device based on PLC control, which is suitable for the mechanical field. Background technique [0002] At present, large-scale wood processing and production workshops can use pneumatic dust removal devices, which can improve the environmental sanitation and fire protection conditions of the production workshop, prevent environmental pollution, increase labor productivity, improve production conditions and improve product quality. However, due to the differences in production equipment, processing technology and management level of various enterprises, there are also great differences in the power consumption of pneumatic dust removal devices. The energy consumption of some devices is seriously wasted, which increases production costs and reduces market competition for products. Labor productivity is low, and resource utilization is low, so that it has become a restrictive factor for enterprise efficien...

AI Technical Summary

Problems solved by technology

However, due to the differences in production equipment, processing technology and management level of various enterprises, there are also great differences in the power consumption of pneumatic dust removal devices. The energy consumption of some devices is seriously wasted, which increases production costs and reduces market competition for products. low labor productivity, low utilization rate of resources, so that it becomes a restrictive factor for enterprise efficiency and survival

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