Chenguang Chemical Dangerous Goods Plasma Cracking Equipment Fills Domestic Blank

Zhongye Chenguang Chemical Research Institute is a leading enterprise of silicone rubber and fluororubber in China. It has always attached great importance to environmental protection and pollution control. It originally built waste gas and waste liquid incineration equipment, but there has been no suitable solid waste treatment technology before, resulting in solid waste. Stacking causes environmental pollution. The Energy Engineering Section of the Engineering Science Department of the Institute of Mechanics undertook the task of developing the "Plasma Cracking Equipment for Chemical Solid Hazardous Wastes" in Zhongyu Chenguang Environmental Protection Project. The research team adopted the most advanced plasma incineration technology in China and built the first industrial device using this technology in China. It filled the domestic gap in this field and successfully passed the acceptance of the expert group.
The device adopts DCS control and has a high degree of automation. The organic matter in the solid waste is basically decomposed and incinerated. The organic material removal rate can reach above 99.9%. The exhaust HCl and NOx can meet the discharge standards and can be recovered from the primary recovery tower tank batch. Recovery of acid, while gaining significant environmental benefits, also has significant economic benefits.
At present, there are a large number of hazardous solid wastes in the southwestern region that need to be disposed of. However, there is a lack of corresponding treatment technologies and devices. The commissioning of this device by Chenguangyuan has shown promising prospects for environmental protection in the southwest region.
Plasma technology for the treatment of hazardous waste is a new type of environmental protection technology. It is mainly used for the treatment of fly ash and slag generated from incinerators, military waste, and industrial hazardous waste. The Energy Engineering Section of the Engineering Department of the Institute of Mechanics has overcome the technical difficulties in the treatment of chemical solid hazardous wastes. The plasma arc technology was used in the environmental protection project of the Zhongyu Chenguang Research Institute and successfully developed the first domestic plasma cracking of chemical solid hazardous wastes. Equipment" was successfully tested in one-time operation recently and put into trial operation.
This equipment is the first domestic plasma equipment capable of resisting hydrogen chloride corrosion and industrial scale processing of chemical solid hazardous waste. The whole set of equipment includes raw material crushing, glass slag-making auxiliary ingredients, mixing and feeding pretreatment systems, plasma cracking furnaces and dedicated power systems, exhaust gas incineration systems, deacidification and scrubbing and waste acid recovery systems, and measurement and control systems. The main equipment plasma furnace has a plurality of components that are resistant to temperatures above 1500 degrees Celsius, the processing technology is complex, and the precision requirements are high, involving dozens of materials (of which nearly 10 are special materials), and the reactor liners and electrodes are made of graphite materials. .
The plasma core temperature can reach 7000°C, and the reactor operating temperature can be adjusted within 3000°C. Compared with traditional incineration, the use of plasma pyrolysis waste has the following advantages: It can be used to treat high-risk wastes such as polychlorinated biphenyls (PCBs) that require high temperature pyrolysis, and the materials to be processed can reach high temperatures in an instant; environmental standards High, do not produce Dioxin and other highly toxic substances, to avoid secondary pollution of the human body and the environment; tail gas handling is very small, only 5% to 10% of the traditional incineration method, and the tail gas treatment method is simple, Recyclable flammable gas; The resulting solid residue is vitreous, and its physical and chemical properties are extremely stable, it can be safely landfilled; The treatment process has no wastewater discharge; The cost is low, the cost per ton of waste is less than RMB 1,000; Small area, low investment in infrastructure; short process flow, easy operation, safety and reliability, all indicators meet the national environmental protection requirements.
The environmental protection project of Zhongyao Chenguang Research Institute of Chemical Industry is one of the Three Gorges reservoir area's wastewater treatment projects undertaken by the National Development and Reform Commission, and it is also a key environmental protection project in Sichuan Province and Zigong City. At present, China has a large number of hazardous solid wastes to be disposed of. The operation of the plasma device not only has significant environmental benefits, but also has significant social benefits, which shows a bright future for China's environmental protection.