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Hangzhou Wellcare Technology Co., Ltd.
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Product Description Project Introduction:Construction management project involved design and construction of a production capacity of 20000 Tons Food Grade 95% Alcohol Per Year + 99.95% of 10000 Tons Output Per Year of anhydrous alcohol production facility with Supporting DDGS facilities, the Project is annually produced from grain corn. The plant consisted of two coal, gas, and fuel oil-fired power generation boiler houses, evaporators, distillation columns, scarifiers, fermentators, tank farms, truck loading facilities, wastewater treatment, river water intake, and an administration office building. Pipe racks and pipe bridges carried miles of process and utility piping, conduit, and tubing. Instrumentation installation allowed operation of the plant from two central control rooms. The foundation system included over 2,000 step taper piles.Key Features:1.It is a turn-key whole set equipment, simple equipment, less worker, less area, less cost. 2. We can design, manufacture, install and adjust the production line which can produce 50L-1000000L alcohol (ethanol) per day.3.We can use corn/maize, wheat, cassava, molasses, rice, potato, Chinese date, bagasses,beetroot,sugar cane ect which contains starch or sugar material to produce alcohol/ethanol.4. We can do the turn key system or section part of the alcohol/ ethanol production line.5. We can improve and rebuild old alcohol(ethanol) production line . 6.We can provide energy saving advice and instruction of civil works.You can choose single distill tower to save money, also can choose 5 distill column or more to get superfine quality alcohol(ethanol) or even higher ones. The alcohol/ ethanol process mainly consists of Milling Section, Liquefaction section,Saccharification section, Fermentation section and Distillation section,DDGS animal food section,Multi-effect & MVR evaporation,dryer machinery and waste water treatment. Pls contact us for more details: We make many kinds alcohol equipments. We are the largest manufacturer of alcohol , fuel ethanol and DDGS high protein feed Complete equipment,ethyl acetate equipment,vinegar equipment in China , being regarded as national high-tech enterprise, Shandong profit star enterprise, standing commissioner of the National Alcohol Association, national demonstration unit of both quality and credibility assurance, national enterprise in designing and manufacturing class-I, class-II, class-III pressure vessel. We are capable to design , manufacture , install and adjust 3000t-500000t alcohol complete equipment on alcohol producing equipment and DDGS complete equipment , winning the National Science & Technology Progress Award many times .We are the first choice of clients at home and abroad .Material of alcohol equipment is corn, tapioca, potato, and other amyloid plants; sirup, sugarcane, sugary jowar .We can also design for you according to your requirements.We have a lot of commercial partners in Europe, America and Southeast Asia because of our advanced technology and reliability and reasonable prices. services: 1:Before Service: All the processes of alcohol/fuel ethanol production line are specially designed by Technical deportment according to each customer's requirements and we have Strict Quality Control System of all the alcohol/ fuel ethanol equipment. 2:Middle Service: Supply engineers and workers training during the installation and debugging of the alcohol/fuel ethanol plant. If any question, pls feel free to contact us for solution. 3:After Service:Supply lifetime technology consultation and advice of the alcohol/fuel ethanol production plant. If you have any problem or question about the alcohol distillery/bio ethanol plant, pls call us and E- mail us at any time, we will reply to you at the shortest time. Engineers are available to go to plant site to help customers to improve processes or technology if required.Payment Terms: Type of Payment: t/t and LCRemark: Details to be discussed.Alcohol equipment, Differential pressure,Fuel ethanol equipment, Dehydration alcohol ethanol equipment, Distillation columns The Project Production Section listed:1: Crushing or Milling Section:The feedstock corn is discharged from the bottom of the silo through an electric valve, conveyed to the crushing workshop by conveyor, and conveyed to the bucket scale by bucket elevator, then to remove impurities in the corn by sieve and stone removal machine. After cleaning, the corn goes into the buffer bin, and then through the iron removal variable frequency feeder to feed into the crusher uniformly. The corn is hit by hammer at a high speed, and qualified powder material enters into the negative pressure bin. The dust in the system is inhaled to the bag filter through a fan. The recovered dust returns to the negative pressure bin, and the clean air is discharged to the outdoor. In addition, the negative pressure bin is equipped with a material level detection alarm, the fan is equipped with a silencer. The whole system operates under the micro negative pressure, with low power consumption and no dust spillover in the working environment. The crushed powder is conveyed to the mixing system by the screw conveyor at the bottom of the negative pressure bin. The mixing system is controlled by computer and the ratio of powder material and water is controlled automatically.2: Liquefaction & Saccharification process:Slurry in the mixing tank is conveyed to the hydrocyclone desanding machine by the slurry pump, the slurry after desanding is stored in the temporary storage tank and amylase is added into the tank, then the slurry in the temporary storage tank is conveyed to 1 # 2 # spiral plate heat exchanger by slurry pump, and exchange the heat with the liquefied mash from the later liquefaction tank. The slurry enters into the pre liquefaction tank, and is conveyed by liquefied mash pump to the spray liquefier for cooking and liquefying, cooking temperature is 105 oC, liquefying temperature is 95 oC, liquefaction time is about 120 minutes.The liquefied mash from the liquefaction tank exchanges the heat with the slurry mash through the spiral plate heat exchanger and its temperature is reduced to 60±2oC, then the liquefied mash enters into the saccharification tank and add saccharifying enzyme to the tank. The saccharification time is about 30 minutes, the inspection sugar degree of saccharifying mash is 20BX±2BX. Then it is conveyed by the mash pump to the spiral plate heat exchanger in the saccharification section to cool down its temperature to 30oC±2oC and then for fermentation in the fermentation tank.3: Fermentation process:Batch fermentation, semi-continuous fermentation and continuous fermentation can be employed. To guarantee the stability of fermentation temperature, the heat exchanger outside the fermentation tank is for circulating cooling. Regarding the batch fermentation, at the early stage of the fermentation, fermentation temperature is controlled at about 32 oC; at the middle stage, temperature shall not exceed 36 oC; at the late stage, gradually cool down, let natural fermentation go on until it ends. Fermentation time is controlled at about 58 + 2 hours. Cassava feedstock fermented alcohol content is controlled above 12% (V/V), corn feedstock fermented alcohol content is controlled above 14% (V/V). CO2 gas overflows with light wine volatilization during the fermentation, install a light wine collecting device to recover the light wine.4: Process description of Two-column Differential Pressure Distillation:The differential pressure of the process unit is: the differential pressure between rectifying column T502 and beer stripping column (mash column) T501.1,The fermentation mash from fermentation section is preheated to 70 oC through primary preheater E502 (Fermentation mash is preheated by crude alcohol vapor that is condensed at the top of the mash column), secondary preheater E507 (Fermentation mash is double preheated by waste distillers in mash column), and feed into the mash column at the 24th tray. Fermentation mash is heated by the bottom steam when downward in the mash column T501, alcohol vapor is upward and separated from the waste mash. Waste mash is discharged at the bottom of the column, and the alcohol content of waste mash is no more than 0.05% and transported to the environmental protection section. Upward crude alcohol is for defoaming (low concentration alcohol) by 25th, 26th defoaming plates and enters into 1 # preheater, part of the alcohol vapor is condensed, uncooled alcohol vapor continues to be condensed by a set of condenser. The condensate liquid is heated indirectly by steam condensate water and residual distilling water (waste water at the bottom of the column) of rectifying column and enters into the rectifying column. Part of the crude alcohol refluxes (the purpose is for defoaming the crude alcohol gas), while some non-condensing gas is discharged into the atmosphere through the vacuum pump.Heating mode of mash column: the alcohol vapor at the top of the rectifying column heats the mash column through the reboiler E501, The reboiler uses a circulating pump for circulation. The mash column works under the negative pressure, the negative pressure is produced by the connection of the vacuum pump through the condenser group. 2,Light alcohol from mash column T501 is indirectly heated by the steam condensate water, residual distilling water of rectifying column, enters into the rectifying column at the 18th tray. While the light alcohol is gradually concentrated, head impurities such as methanol and aldehyde are upward with alcohol vapor to the top of the column, part of impurities (such as oil) is retained on the upper layers of the feed plate whereby as fusel oil produced into the fusel oil separator for oil and alcohol separation. Fusel oil enters into fusel oil storage tank V509, and light alcohol enters into light alcohol tank and is pumped to the fermentation mash tank. The head impurities can be removed by extracted part of the reflux as industrial alcohol. The alcohol with a concentration of 95-96% (v/v) in the 6-8 trays below the reflux mouth of the column top is extracted as the finished product, and after cooling, the high concentration alcohol enters into the finished product alcohol tank. Heating mode of rectifying column is heated indirectly by fresh steam through the rectifying column reboiler, and the condensate water is flash steamed and sent to the crude alcohol preheater by the condensate pump for exchanging heat with the crude alcohol and then return to the boiler room for reuse. The flash steam is used as part of the heat source of the beer stripping column.5: Molecular sieve dehydration technology:1,Molecular sieve dehydration: 95% (v / v) of liquid alcohol is heated to the proper temperature and pressure by feed pump, preheater, evaporator, and superheater ( For gas alcohol dehydration: 95% (V/V) gas alcohol directly through the superheater, after heating to a certain temperature and pressure ) , and then is dehydrated from top to bottom through the molecular sieve in the adsorption state. The dehydrated anhydrous alcohol gas is discharged from the bottom of the adsorption column, and qualified finished product is obtained after condensation and cooling.2,Molecular sieve regeneration: After dehydration is completed by the adsorption column, the water absorbed in the molecular sieve is flash-evaporated by vacuum flash evaporation, and then condensed to be light alcohol, the molecular sieve reaches the adsorption state again.The regeneration of the molecular sieve of the adsorption column is achieved by using the equipment such as vacuum pump, light wine condenser, and regeneration superheater. The regeneration process is divided into: decompression, vacuum extraction, flushing, and pressurize, the running time of each step is automatically controlled by the computer program.The light alcohol obtained by condensation during the regeneration process is pumped to the light alcohol recovery device.6: DDGS feed cooling and conveying processDDGS feed is easy to agglomerate in the process of drying and spraying, and the temperature is as high as above 80 ° c. If only through simple cooling and conveying, caking, mildew, carbonization, spontaneous combustion and other phenomena of the feed will take place after packaging. Our company adopts the industry's advanced two-stage cooling process. First, the DDGS feed is cooled once through negative pressure conveying or mechanical conveying, and then enters into the cooler for secondary cooling (the feed temperature after cooling will not exceed more than 5 ° c compared with the ambient temperature). After cooling, the feed is for crushing and packaging to ensure the feed particle even and no color difference. The process is characterized by high efficiency, energy saving, environmental protection and safety.
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