Optimal Design And Simulation Of Tunnel Kiln Continuous Pyrolysis Equipment For Waste Rubber

Using pyrolysis technology toprocess waste rubber produced great economic benefits and environmental benefits.It has been attracted the scholarst of industry around the world.If the cracking process method is proper,can fully satisfy the large capacity,high efficiency and little environment polluting.It also can solve the black pollution problem produced by the current waste rubber products.It also can alleviate the current problem of fossil fuels reducing and hign energy prices.The pyrolysis technology has become one of the best recycling utilization of waste rubber.This article used the microwave pyrolysis technology to deal with waste rubber.Studied the impact from location of the powder in the cracking chamber on the rate and energy consumption of cracking,transparent materials surface adhering carbon black effect on the cracking rate and energy consumption,cracking cavity material effect on the energy loss.Simulated and analysis these problems are basised on electromagnetic theory and using electromagnetic simulation software HFSS.The research shows that waste rubber and metal base plate cracking chamber has a best hign position.The waste rubber in the position absorb microwave energy is most.The pyrolysis rate is highest.The the cracking rate is the fastest.Transparent materials surface adhering carbon black will seriously affect the microwave transmission rate and reflectivity.According improving the waveguide form to avoiding the adhesion of carbon black.Pyrolysis chamber using different metallic materials can produce different cavity wall loss.And when cracking chamber use aluminium,cavity wall loss is minimum.It also has the highest energy utilization.Optimization designed tunnel kiln continuous pyrolysis equipment for waste rubber based on the electromagnetic simulation results.The whole pyrolysis equipment is divided into three parts-respectively for incoming parts,cracking and discharging part.Incoming part adopts shaftless spiral feeding.The cracking part adopts tunnel kiln type horseshoe chain to promote decomposition scheme microwave source in the form of the combined group of magnetron.The discharge part adopts spiral discharging.Improved the cracking material locatin in the cracking chamber.And the best location make the cracking efficiency greatly increased.It has stable microwave transmission rate in the pyrolysis process by improving the rectangular waveguide.Improved the pyrolysis chamber materials.It can reduce the wall energy loss and improve the energy utilization rate.Optimized and Designed a new type sealing structure for the conditionthe pyrolysis chamber shaft.It can improved and solved the problem of cracking gas leakage.The safety and stability of equipment is increased.Studied the continuous experiments for the optimized cracking equipment.The research shows that the optimized tunnel kiln type powder for cracking equipment is heating up fast.The continuous experiment has non-clog pyrolysis process.And the equipment operation is fluent.Pyrolysis products hsve high quality.At the same time the equipment has lower energy consumption.It conform to the optimal design expected effect.