High Performance Gypsum Powder Production Line with Rotary Kiln

Introduction of Gypsum Powder Production Line:  Controlling PartFull Automatic / Semi-AutomaticAnnual capacityCustomized (20, 000-300, 000 Tons Per Year)Calcining systemEbullition furnaceRotary kilnFuelNatural gas, diesel, coal, heavy oilRaw materialNatural Gypsum Rock (Content of CaSO4@2H2O >80%.)Desulfurization GypsumPhosphogypsum Finished powder usageGypsum boardPlaster powderSetting timeThe Initial Setting Time: Shall Not Be Less Than 3 Minutes,The Final Setting Time: Shall Not Be More Than 20 Minutes  1. Gypsum powder quality standard: in compliance with GB/T 9776-2008 2. Main Technology(here take Nature gypsum rock as example)Gypsum rock - first crushing -second crushing - grinding - calcining - aging -finished products (CaSO4.1/2H2O).After being heated and calcined with certain temperature,natural dihydrate gypsum is dehydrated and decompounded,to get the product whose major component is semi-hydrated gypsum(CaSO4.1/2H2O),that is,calained gypsum(generally slaked gypsum).According to different temperatures and pressure conditions during dehydration decomposition,the obtained product is  β-Type calcined gypsum.Basic process of mechanized prouduction includes five large systems:gypsum grinding,automatic measuring system,calcination system,heat supply system,and aging&packing system.According to client's requirement,gypsum crushing system can be added to crush large gypsum rock to be with size of 0-30mm,and then conveyed into grinding system.3.Payment conditions:A.  Payment terms: 30% T/T in advance; 70%L/C or T/TB. We can provide quality guarantee;C. Kunlun bank account available to make convenient for Iranian client.About DCI:Hengshui Decheng Machinery & Equipment Co., Ltd, founded in 2008, is a comprehensive enterprise of machinery manufacture, research&development. It has 218 staffs and 53 technical staffs including senior engineers, engineers and technicians. It covers 30, 000 sqm land, and has machining workshop, electrical workshop with complete sets of production and testing equipment. In 2008, it passed ISO9001: 2008 Quality Management System Certification. In early 2013, after on-site inspection and authentication by SGS, it became audited supplier of Made-in-China.  Our company specially designs and manufactures complete sets of building materials equipments, such as paper surface gypsum board production line, gypsum powder production line (natural gypsum and chemical gypsum), fiber cement board production line, calcium silicate board production line, cement production line, AAC block production line, stone production line, etc. Certainly we also supply single machines, spare parts and wearing parts for these production lines; At the same time, we produce some raw materials for the production lines, such as modified starch, foaming agent, glue, etc.  Our company has well-experienced professional engineers and technical teams to ensure our clients with high-quality equipments. The well-skilled installation and commissioning team and high-quality process technologists provide our clients both at home and abroad with full set of technical services to make our clients "buy with reassurance and use with gratification". In recent years, our company has completed building materials equipment projects in the Middle East, Central Asia and Eastern Europe, etc, and has got highly praises for both product quality and after-sale services.   Since established, we have been taking "human oriented, management strengthened, survival with quality, develop with technology" as company spirit, to provide customers with fittest products and win widely their praise. We, DCI, shall always insist on quality principle of "quality first, customer first, team work, continual improvement", and adhere to company philosophy of "honesty oriented, excellence pursue", to realize the aim of "united as one to make us successful and customer satisfied" and to provide better products and services for all old and new customers. "Let our brand remain in the customers' minds forever" is our quality commitment, and we wish to work together with all friends for common development.  Warmly welcome all friends all over the world to our company!National Standard of Calcined Gypsum                                                              Standard No.: GB/T 9776-2008Scope of application:Gelled material made by dehydrating natural gypsum(raw material). Its main component isβ-GaSO4·1/2H2O, without any admixture or additive.   The natural gypsum should be in conformity with requirements of "gypsum rock(JC/T700) for making cementing material" gypsum rock of Grade 3 or more higher grades. Classification:It is classified to be three grades: 3.0,2.0,and 1.6 according to its 2h strength(breaking strength). Composition:  β-GaSO4·1/2H2O content(mass fraction) in Calcined gypsum should be not less than 60.0%.Physical and chemical performance:  GradeFineness(Screen residue of 0.2mm square screen)/%Setting time2h strength/MPaFirst settingFinal setti