A vertical composting reactor and its control method and control system

Abstract

The invention relates to a vertical compost reactor as well as a control method and a control system thereof. The vertical compost reactor comprises a compost reactor body, an aeration device, a stirring device, a feeding and discharging device, a deodorization device and the control system; the control system comprises a low-pressure control cabinet, a logic controller, a temperature monitor, anoxygen monitor, a moisture content monitor, a stink monitor and a human-computer interface; the temperature monitor, the oxygen monitor and the moisture content monitor are arranged in the compost reactor body; the temperature monitor, the oxygen monitor, the moisture content monitor and the stink monitor are connected with a signal wire concentrator through a signal converter; the signal wire concentrator is connected with the logic controller; the logic controller is respectively connected with the human-computer interface and a low-pressure controller arranged in the low-pressure control cabinet; the low-pressure control cabinet is respectively connected with the aeration device, the stirring device and the deodorization device. The invention also provides a control method of the control system.

Description

technical field [0001] The invention relates to an aerobic fermentation technology for treating organic solid waste, in particular to an aerobic composting vertical composting reactor with online monitoring and intelligent control, a control method and a control system thereof. Background technique [0002] Aerobic composting is a new biological treatment technology developed rapidly from the late 1960s. It uses microbial communities to decompose multi-phase organic matter in a specific environment, and improves organic solid waste into stable humus. It can be used in fertile fields or soil improvement to turn organic solid waste into reusable resources. my country is vigorously promoting the application of this technology for the harmless treatment and application of agricultural and agricultural solid waste, including livestock and poultry manure, domestic garbage and sludge. The research on aerobic composting technology, but there are still problems such as the lack of p...

AI Technical Summary

Problems solved by technology

This technology is to set the time and beat aeration; but the vertical material height is high, and in the top-to-bottom continuous composting reactor, the temperature, oxygen consumption and moisture content are different at different heights, and there are certain rules Yes, the material gradually decomposes during the slow moving process from top to bottom, the temperature will gradually increase and then decrease, the oxygen consumption will gradually increase and then decrease, and the water will gradually decrease. Simple rhythmic aeration will cause excessive or insufficient aeration. , The phenomenon of uneven aeration leads to poor fermentation effect, so the fermentation process cannot be accurately and reasonably controlled, and energy waste will also occur

[0005] In the existing technology, there is also a technology that uses temperature and oxygen content feedback to control ventilation. Although it can also realize the temperature control of the pile, it cannot guarantee the control of the moisture content of the pile, and does not consider the vertical fermentation process. The difference in temperature, moisture and oxygen in the vertical space in the continuous fermentation process from top to bottom will lead to uneven, insufficient and incomplete fermentation of materials

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