This production line is composed of ultra-pure water equipment, homogenize the system, beginning filtration systems, bleaching systems, fine filtration systems, purification systems, regeneration system, microfiltration system, etc., this operating mode is now a mature domestic advanced vehicle urea production technology, has entered the stage of mass production industries. A) stirring a homogeneous system: a stirring device, and play a role in homogeneous. B) the initial filtration and bleaching system: removal of urea and other suspended solids floating impurities guarantee after the procedure is not affected. Decolorization system using high-quality activated carbon adsorption bleaching, other organic impurities removal urea, urea solution more clear. C) The fine filter system: to prevent decolorization activated carbon particles into the system, after-treatment processes, the impact of after-product quality. D) Purification System: A multi-stage purification tower way to remove the urea solution in a variety of ions, biuret, phosphate and other impurities to ensure the product meets the China Society of Automotive Engineering Technical specification SAE-China J2901-2013 "car with urea solution Technical specifications "standards. Five) microfiltration systems: * Some visually production process piping, storage tanks, power equipment, etc. may produce an invisible residual impurities, to ensure stable and reliable product quality. Six) to restore the regenerative system: purification tower gradual failure in the process of the production process, to reach a certain period needed to restore the regenerative treatment process takes 2-3 hours. Purification tower regenerated by reduction of repeated use, can fully meet the requirements of the original production process. Each regeneration cycle process will produce two tons of wastewater, the wastewater does not contain other heavy metals, mainly PH value does not meet the requirements. After the adjustment can be achieved and environmental emissions standards. Automotive urea (urea car, car environmental urea) scientific name is diesel exhaust treatment fluid. Applied to a diesel engine. It is a kind of SCR technology must be used to consumables, diesel exhaust to reduce nitrogen oxide contaminated liquids. Its composition is 32.5% and 67.5% of high-purity urea deionized water. Engine technology from home and abroad, the heavy compression-ignition diesel buses, sanitation, postal and other departments moving vehicles to reach the country Ⅳ emissions, the engine has been difficult to transform the world's major automobile manufacturing companies are looking to have a great development potential for selective catalytic reduction technology (SCR, Selective Catalytic Reduction) flue gas after denitration treatment to meet the requirements of the first stage Ⅳ emissions, the reducing agent used mainly for the urea solution. SCR principle of selective catalytic reduction technology are: automotive urea solution is stored in a special storage capacity of 100L tank with compressed air spraying urea solution to a hot engine exhaust (about 300 ℃ -500 ℃, meet the reduction reaction conditions) , after the solution was vaporized to produce a high reduction efficiency of ammonia, ammonia gas and the exhaust gas of the NOx SCR catalyst in a reaction vessel, into harmless water vapor and N2, while absorbing the harmful smoke particles. ??? The benefits of urea on the use of vehicle car?? ?? Automotive urea solution most basic function is to automobile exhaust nitrogen oxides into harmless nitrogen and water, energy saving and environmental protection to make your car to reach emissions standards prescribed by the state. ???? Through the intelligent control of the SCR system, when the shortage of urea solution storage tank, the car will not start up, in order to ensure the normal running of the vehicle, shall be provided with adequate urea solution. ???? In addition the choice of different quality urea solution, for the maintenance of vehicles are different. Resulting purity urea solution elected by enough, particulate matter, heavy metals and other impurities present time, the vehicle will SCR system nozzles, filters and other parts of serious harm, unnecessary economic losses. Low quality urea solution is not high if the chemical composition, the presence of heavy metals and other chemicals when chemically react with the catalyst to reduce exhaust gas conversion effect, even useless. Therefore, when the urea solution in the selection should try to use high-quality products, in order to control the maintenance cost of the vehicle. Urea is a dedicated diesel engine exhaust gas purification reductant. It is an odorless, non-toxic solution, stored in a special storage container diesel vehicles. When the exhaust gases from the engine, it will arrive in conjunction with SCR exhaust gas catalytic converter, then the nitrogen oxides into harmless nitrogen and water, thereby greatly reducing emissions. Urea abroad generally called Adblue or DEF, with Adblue diesel cars have a separate container for storage. For now? SCR (Selective Catalytic Reduction Technology) technology into the country Ⅳ standard diesel engine technology of choice. Domestic engine manufacturers are beginning to use? SCR? Technology to meet environmental requirements. To reduce the pollution caused by automobile exhaust to the atmosphere, our country will be fully implemented IV emission standards. With the date of implementation of national standards gradually approaching four urea traditional chemical products is also expected to shine with new vitality. In fact, in Europe, 2006? Has already begun to implement this policy. European diesel exhaust treatment liquid called? Adblue. In the United States, 2010? In the beginning, with the EPA2010? Implementation of standards, but also increased the overall automotive urea solution application implementation efforts in the US, diesel exhaust treatment liquid called? DEF (Diesel? Exhaust? Fluid). The main representatives BlueDEF like. However, in China, for the production of diesel exhaust treatment fluid is still an emerging industry. Currently the largest amount of foreign European market, sales of urea during 2006 European network has been formed, the main retail outlets and two forms of urea pumping station. Currently gas stations in the whole of Europe can buy the car with urea. In 2010 its market demand has reached more than 3 million tons. Domestic demand: National Five-Year Plan requires nitrogen oxide emissions by 10%. 2011-2015, the state has promulgated the fourth and fifth stages of the national vehicle fuel standards, and heavy-duty diesel vehicles using SCR technology stock, Adblue is an essential accessory products.