An annual output of 1,800 tons covering 50 flat car with a full set of equipment for urea production

With the car market in the form of urea increasingly clear, automotive urea production equipment manufacturers are gradually increasing, manufacturers manufacture, uneven levels of facilities, there is the presence on the market the production process is also diversity, there are mainly three kinds, One is the raw material for the high-purity urea (natural gas and chemical products) was mixed directly with the high water, the advantages: low-cost equipment, disadvantages: high raw material costs of urea (high-purity urea price per ton 3500-4200), the price per ton of urea product more than doubled, there is no industry finished the urea price advantage; the other is industrial urea as raw materials by increasing and decreasing temperature to take pre-emptive high purity urea, and then mixed with the high water, the advantages: low-cost equipment, raw materials for the ordinary urea urea, Disadvantages: there pungent odor of ammonia produced, purified waste time produce more of certain waste materials urea; urea purification equipment there is to KLS technology as the basis, advantages: raw materials industrial urea production process does not produce any pollutants, easy to operate vehicle urea product costs low, there are advantages in market competition Disadvantages: equipment costs slightly higher than some. Get more recognition on the market today is the third process, as well as equipment for the technology, customers choose the time to consider, but also consider the company's overall strength, to buy their own equipment. Our car urea production equipment, production technology as KLS production process, the following details will be fully introduced our car urea production equipment. Vehicle urea solution is a colorless, transparent, clear liquid, a concentration between 31.8% -33.2%, for the reduction of nitrogen oxides. Currently used by car generally consists of 32.5% urea solution of urea and 67.5% of high-purity deionized water. Vehicle urea scientific name is diesel exhaust treatment liquid domestic commonly known as: automotive urea, urea car, car environmentally friendly urea, car denitration agent, but the most common is called vehicle urea. The earliest use of the car in Europe, with a urea solution called Adblue, North America called DEF (Diesel Exhaust Fluid, namely diesel exhaust treatment liquid). In domestic SCR (Selective Catalytic Reduction) diesel technology into the country Ⅳ standard technology of choice, when the exhaust gas from the engine exhaust, it will arrive together with the SCR exhaust gas catalytic converter, and nitrogen oxides into harmless nitrogen and water , thus greatly reducing emissions, the domestic engine manufacturers are beginning to use SCR technology to meet environmental requirements, therefore, SCR systems require vehicles with diesel urea solution becomes equivalent consumables. Currently vehicle urea demand is mainly concentrated in Beijing, Shenzhen, Shanghai and other cities of the bus company, the social market is not demand, therefore, present car directly supplying urea sales, use bottled mode, 10L / barrel, adding convenience. At present, the domestic industrial urea prices hovering around 1800 yuan / ton, while the price of urea solution vehicle is 3500 yuan / ton, contrast, vehicle urea profit more impressive. To reduce the pollution caused by automobile exhaust to the atmosphere, our early 2015 the full implementation of national IV emission standards, due to the upgrading of the four countries to take selective catalytic reduction technology standard, so the car will be sold with urea blowout, car market outlook is very optimistic about the sales of urea . I. Project dedicated automotive diesel engine exhaust gas purification urea reductant. It is an odorless, non-toxic solution, stored in a special storage container diesel vehicles. When the exhaust gas discharged from the engine, it will arrive together with the SCR exhaust gas catalytic converter, and the nitrogen oxides into harmless nitrogen and water, thereby significantly reduce emissions. Usually called Adblue urea abroad or DEF, with Adblue diesel cars have a separate container for storage. For now SCR (Selective Catalytic Reduction) diesel technology into the country Ⅳ standard technology of choice. Domestic engine manufacturers are beginning to use SCR technology to meet environmental requirements. Second, the production process of urea car (car urea, urea green car) scientific name is diesel exhaust treatment liquid, it is a technique that must be used in SCR consumables, diesel exhaust to reduce nitrogen oxide pollution liquid, consisting of 32.5% high purity urea and 67.5% deionized water. Water flow inhibitor dosing, RO cleaning system raw water booster pump → → → original tank sand filter activated carbon filter → → → 5μ precision filter inhibitor means a high-pressure pump → → a membrane treatment system → two high-pressure pump → 2 → 2 RO membrane treatment system tank → Security → EDI feed pump filter → EDI system → → ultra-pure ultrapure water tank pump → water points urea production process reverse osmosis water → pretreatment → → reverse osmosis → EDI system → ultra-pure water tank → → homogeneous material tank system → preliminary filter system → bleaching system → extraction → purification → finished Third, the system description: The production line consists of pre-mixing system, heat exchange system early filtration system, homogeneous systems, bleaching systems, purification systems, regeneration system, etc., this operating mode is now mature domestic advanced vehicle urea production technology, has entered the stage of mass production industries. A) Pre-mixed system: aeration and uniform system to remove part of the liquid raw material aldehydes, and play homogenization. B) heat exchange system (optional): Adjusting to process the required temperature. Bagged urea granules need to be raised in order to be more soluble urea particles (Party steam). C) the initial filtration and bleaching system: to remove suspended solids in urea and other floating impurities, ensure the following process is not affected. Bleaching systems using high-quality activated carbon adsorption bleaching, removal of urea, other organic impurities, so that the urea solution more clear. D) fine filter system: to prevent bleaching system activated carbon particles into the after-treatment processes, product quality, after the impact. E) purification system: A multi-stage purification column mode, removing the urea solution in a variety of ions, biuret, phosphate and other impurities to ensure the product meets the national standard vehicle GB29518-2013 << urea nitrogen oxide reductant diesel engines urea solution >> standard six) microfiltration system: Some invisible residual impurities interception production process piping, storage tanks, power equipment, which may produce, ensure stable and reliable product quality. Vii) to restore the regenerative system: purification column in the process of progressive failure of the production process, to reach a certain period needed to restore the regenerative process, process takes 6-8 hours. Purification column regeneration by reducing repetitive use, can fully meet 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 emission standards. Viii) wastewater treatment system: to restore the regenerative process of the waste generated in the process, to meet emissions standards. The other aspects of the design, not the scope of this program and offer. Wastewater Treatment: Wastewater wastewater collection tank → → PH adjustment tank for treating wastewater discharge tank IV, expected benefits Description: production time by 8 hours / day, 300 days / year basis, the annual output of 1,500 tons of production costs in different regions there are differences in manufacturing Cost: cost of raw materials urea: urea feed 1,800 yuan / ton, 1 ton of raw materials can be finished three tons, the consumption of raw materials cost: 1800 ÷ 3 = 600 yuan / ton. The remaining manufacturing costs such as packaging materials, filling systems, product transportation or storage, the cost is not included. Operating costs (single power by the hour accounting, other cost accounting by year): 1, power consumption per ton of product use: the system is expected to run power 6.6KW, 6.6 kW / h × 0.8 × 0.78 yuan / kW ÷ 0.5 tons / hour = 8.24 yuan / ton 2, water consumption per ton of product use: Press the 6 yuan / ton estimate. 3, staff time costs: set the operation and management of two people. Costs by 2 meter, 2,500 yuan / person. Month. 2 × 2500 yuan / person month × 12 months ÷ 1500 tons / year = 40 yuan / ton 4, supplies costs: 8.5 yuan / ton 5, depreciation urea production by eight calculated as 18,700 / year. 18,700 / year ÷ 0.15 million tons / year = 12.46 yuan / ton. These costs Total: 8.24 + 6 + 40 + 8.5 + 12.46 = 75.2 yuan / ton project is expected to benefit: the current market price of the vehicle urea 3000-4000 yuan / ton, according to 3500 yuan terms, the system output value: 3500 yuan / ton × 0.15 million tons / year = 525 million years profit: (3500-700) × 0.15 million tons / year = 420 in case, product quality product quality and design standards for water treatment systems resistivity: 15 MΩcm / 25 ℃ car urea production line in line with China Society of Automotive Engineering Technical specification SAE-China J2901-2013 "automotive urea solution specification" standards in line with national standards for vehicle GB29518-2013 << urea nitrogen oxide reducing diesel engine standards aqueous urea solution >> Item index requirements urea content, W /% 31.8-33.2 Density, 20 ℃, ρ / (g / ml) 1.0870-1.0920 refractive index, 20 ℃ 1.3817-1.3840 alkalinity (NH3 meter), W /% ≤0.2 dipropylene urea, W /% ≤0.3 formaldehyde, mg / kg ≤5 insolubles, mg / kg ≤20 phosphate, mg / kg ≤0.5 Ca, mg / kg ≤0.2 Fe, mg / kg ≤0.5 Cu, mg / kg ≤ 0.2 Zn, mg / kg ≤0.2 Cr, mg / kg ≤0.2 Ni, mg / kg ≤0.2 Al, mg / kg ≤0.5 Mg, mg / kg ≤0.5 Na, mg / kg ≤0.5 K, mg / kg ≤0.5 chemical urea solution, the physical properties of urea H2NCONH2 molecular weight 60.06g / mol CAS 57-13-6 Appearance colorless transparent liquid crystal point -11.5 ℃ Viscosity (25 ℃) Car 1.4mPa.s thermal conductivity (25 ℃) 0.57W / mK Specific heat capacity (25 ℃) 3.4KJ / Kg.k surface tension (20 ℃) ??Min 65Mm / m