Microwave solid waste pyrolysis technology and equipment create new technology in chemical industry
1、 Technological principle of microwave pyrolysis of hazardous wastes:
Microwave pyrolysis technology : In the absence of oxygen or oxygen, the organic matter with large molecular weight is cracked into relatively small and easy to treat compounds or organic matters such as combustion gas, oil and carbon black by using heat energy. Microwave pyrolysis Method and incineration method are two completely different processes. Incineration is an exothermic process. Pyrolysis first needs to absorb a large amount of microwave energy to heat up the material itself. After reaching a certain temperature, the material will produce fission, so as to achieve the purpose of harmless and reduced treatment. The main products of incineration are carbon dioxide and water, while the main products of microwave pyrolysis are combustible low molecular compounds. Incineration will produce secondary pollution of dioxin and soot, while microwave pyrolysis will not produce dioxin in an oxygen free environment, and there will be no exhaust gas and soot emissions. At the same time, when microwave pyrolysis is used to treat chemical solid waste, the selective heating and catalytic properties of microwave can be used to recover useful substances in chemical solid waste, so as to achieve waste reuse and reduce resource waste.
Microwave industrial equipment Application in solid hazardous waste
When it comes to microwave application scenarios, most of them are small household Microwave Oven In fact, the history of microwave technology is not short, and the quality of various supporting components has also been improved. Therefore, microwave has already been gradually applied in industrial production, for example, the application technology in solid hazardous waste, microwave thermal cracking technology is also known as microwave carbonization technology. Its principle is the thermal degradation of materials in oxygen free or anoxic atmosphere, It is a complex thermochemical reaction process with endothermic and exothermic reactions interlaced, and then generates gas, liquid and solid three-phase components. Microwave is used to deeply modify biomass at high temperature, and the material temperature can reach more than 1300 ℃. The modification reaction can be in the atmosphere of hydrogen, nitrogen, argon, etc. The main microwave equipment is mainly composed of microwave generator, PLC detection and control system, color touch screen display system, computer real-time data acquisition and analysis system, pyrolysis reactor, pyrolysis condensation collection system, and protective gas system.
In conventional hazardous wastes, such as chemical waste salt, oil sludge pyrolysis for gas production, chemical waste carbonization and ashing, tailing residue coal for gas production, graphite carbothermal reduction, diamond roasting, etc Microwave equipment Disposal is an advanced scheme.
2、 Application characteristics of microwave industrial equipment:
The microwave solid waste and hazardous waste pyrolysis technology equipment passes through its own dielectric materials (powder, granular, blocky, flaky, columnar and other small pieces of arbitrary shape), and under the action of microwave high-frequency electromagnetic field, polar molecules change from the original random distribution state to the polar arrangement orientation according to the electric field, The polar molecules in the medium change from the original thermal motion state to the alignment orientation following the alternation of microwave and electromagnetic fields, resulting in intense friction and heat generation. In this microscopic process, microwave energy is converted into heat energy in the medium, which makes the medium temperature rise in a macroscopic way, which is the basic principle of microwave internal heating. However, conventional coal, electricity, oil and gas kilns have high energy consumption or pollution and waste gas emission. Their heating method is an external heat conduction process. From the outside to the inside, the heating takes a long time, the heat efficiency is low, the heat energy consumption is large, and coking is easy to occur. Regular cleaning, shutdown and maintenance are required, and components are replaced frequently.
Microwave has the advantages of energy saving (high conversion efficiency into heat energy, more than 30% energy saving than traditional heating methods), environmental protection (no external emissions, effectively reducing the generation of harmful substances), cleaning (materials absorb microwave heating, no contact and no pollution, improving product quality and yield) High efficiency (fast heating speed, high energy utilization rate). The microwave industrial equipment manufactured by Zhongsheng has a service temperature of up to 1600 ℃, and the temperature stability of the kiln is ± 5 ℃, which can meet the requirements of high temperature treatment of most materials. The degree of automation is high, which effectively reduces the labor quantity of front-line production and improves the production environment.
3、 Zhongsheng's quality advantages in microwave industrial equipment:
Hunan Zhongsheng Thermal Energy The company was founded in 2011 with a registered capital of 12.8 million yuan. It is an integrated microwave industrial company that has long been engaged in the industrial research and development, application and equipment design, manufacturing and sales of microwave thermal energy technology. It mainly produces small microwave experimental ovens suitable for scientific research institutes and customized ones for relevant industries in industrial production Industrial microwave equipment 。 In the field of microwave application, there are more than 20 inventions and more than 40 practical ones, of which microwave heating The kiln technology has already been listed in the fifth batch of key energy-saving technology promotion catalogue of the National Development and Reform Commission. Compared with low-power household microwave ovens, the industrial microwave equipment developed by Zhongsheng Thermal Energy meets the requirements of continuous operation of equipment in industrial production, stable production operation, and durable equipment. It is equipped with 1.5KW industrial microwave source, and the power is continuously adjustable to ensure uniform, adjustable, and controllable furnace cavity temperature. Ensure uninterrupted use for 24 hours. At the same time, use a proprietary slot antenna power feed device to ensure that the microwave field is uniform and the microwave reflection is not correct Magnetron If damage occurs, the magnetron can be used 24 hours without shutdown, and the vulnerable parts can be replaced online without shutdown without affecting normal production and operation. The unique microwave leakage prevention device is adopted: the microwave leakage is not more than 1mW/cm2 (the national standard microwave leakage is not more than 5mW/cm2), which greatly improves the production safety, while other manufacturers can only meet the national standard requirements. Zhongsheng Microwave drying equipment , microwave experimental oven Microwave high temperature bell jar kiln 、 Microwave high-temperature pusher kiln 、 Microwave high temperature roller kiln , microwave waste pyrolysis kiln and other products have successful application cases in many industries. The technology is mature and reliable, and has been applied in large quantities in industry. The technology brand of Zhongsheng Thermal Energy in the application stage of microwave industrial equipment is worthy of your trust!
Microwave pyrolysis equipment
