Quick Details
- Processing Time:3-6 months
- Port:Tianjin
- Supply Ability: 20000 Tons Per Year
- Place of Origin:China
- Model Number:10
- Brand Name:DCI
- Brand Name:DCI
Controlling Part
Full Automatic / Semi-Automatic
Annual capacity
Customized (20, 000-300, 000 Tons Per Year)
Calcining system
Ebullition furnace
Rotary kiln
Fuel
Natural gas, diesel, coal, heavy oil
Raw material
Natural Gypsum Rock (Content of CaSO4@2H2O
>80%.)Desulfurization GypsumDephosphorization Gypsum
Finished powder usage
Gypsum board
Plaster powder
Setting time
The Initial Setting Time: Shall Not Be Less Than 6
Minutes,The Final Setting Time: Shall Not Be More Than 30 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/T
B. We can provide quality guarantee;
C. Kunlun bank account available to make convenient for Iranian client
National Standard of Calcined
GypsumStandard 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:
Grade
Fineness(Screen residue of 0.2mm square screen)/%
Setting time
2h strength/MPa
First setting
Final setting
Breaking strength
Compression strength
3.0
≤10
≥3
≤30
≥3.0
≥6.0
2.0
≥2.0
≥4.0
1.6
≥1.6
≥3.0
Note: 1Mpa=10.2kgf/cm2
Responsibility of Buyer and SellerPrepared by Buyer1.1 Machinery and tools for installation, commission and
maintenance1.2 Transportation tool:2 sets of forklifts1.3 Power supply systema. High-voltage power supplyb. Substation and distribution station1.4. Water supply& storage and drainage system1.5 Civil engineering: Building construction, equipment foundation(including
pre-burying work), steel-concrete structure silos and pools.1.6 Material used for making machine's platform and supporting frame of
equipmentProvided by Buyer2.1 Providing round-trip ticket and other transportation cost for the Seller's
workers2.2 Providing accommodation and all kinds of necessary extra charges for the
Seller's workers during installation and commissioning and training period2.3 Providing all necessary large tools for installation, such as crane,
forklift, welder, acetylene& oxygen cutting machine, etc2.4 Providing assistant workers to cooperate with the Seller's workers during
installing according to the Seller's requirement2.5 Usage permission for special equipmentProvided by Seller2.1 Production equipment2.2 Gypsum Board Production Line,Providing installation guiding engineers and technical
workers2.3 Providing 1 team leaders and 1 interpreters2.4 Providing equipment foundation drawings, general arrangement drawing of
production line (layout plan, elevation drawing and side view drawing) within 40 days after receiving down payment2.5 Providing equipments' operation manual during training2.6 Providing main equipments' general assembly drawing, wiring diagram of
control cabinets, PLC computer programs within 7 days after acceptance2.7 The Seller is in charge of commissioning and traininga. Commissioning: the Seller shall send engineers and technical workers to
plant site to do full-scale testing, and the Buyer shall also send assistant staff to cooperate with the Seller's people.b. The Seller's workers in charge of commissioning will do performance
operation, make on-site speeches and answer questions to Buyer's technicians and operation workers under training. During the whole process of testing, both sides shall work together. After
Buyer's workers master operation technique, the Seller will hand over the whole running line to the Buyer's for operation and then the training work is finished.2.8 Within one year after signing the Acceptance Certificate, the Seller shall
provide technical consultation to the Buyer for free. If the Seller's people are asked to be on the site, the Buyer shall provide round-way tickets and accommodation abroad.
Environmental protection:Main pollution sources:Waste residue: Waste board and board edge cut down, etc.Waste water: The sediment water left after the fan circulation use in the
product process, from washing pool and toilet water.Noise: mainly is 95Db(A)or so noise from the fan.Dust: From mixing material and cutting board.Disposal methods:Waste residue and disposal: It does not pollute the environment and can be
re-used afterreprocessing in gypsum powder production line.Waste water and disposal: No industrial waste water. The living wastewater is
drained into the plant sewage network, and the production wastewater from cleaning floor in the workshops can be recycled after the secondary sedimentation. And the water used in such equipment
as fan can also be recycled.Noise and deposition: Noise, which mainly comes from fan. Besides setting soft
joints at the exhaust inlet and exhaust outlet. Set impedance complex mufflers at the exhaust outlet, which can low the noise as much as 30Db (A).Dust and disposal: Dust collection devices will be equipped in the production
process.
Labor sanitationSafety designSafety design for factory areaThe factory road traffic design and outdoor fire hydrant arrangement will be in
conformity with every requirement in "Achitectural Design Fire Prevention Norm"; The pavements and driveways are smooth, unblocked, and there are enough lighting facilities at night; Set covers
over the draniage ditches in the factory; Make it easy to go through, discharge, convenient and safe; at the same time do virescence in the whole factory to reduce the dust and
noises.Safety design for workshopIn the workshop, certain safe distance must be left for the main passages and
operating passages, between equipments and the building, between equipment and equipment, and between equipment and passages; Set guard rail on all workbench edges; Set covers over drainage
ditches; Lighting is enough in the workshop; All electrical equipments have ground protection, and there is overhauling power of 36V to ensure of overhaul safety.Harmful factor in producing:Variety of harmful substance: Noises from fan, air compressor,
etc.Measures to reduce harmful factors: Do best to select low noise equipments to
reduce the noise from sound source, and meanwhile add anti-vibration soft connectioner and muffler on the fan.Precautionary measures of safety and sanitationProtective appliances shall be allotted to each worker according to real
working conditions; All equipment is managed by certain person, the detailed operational procedure shall be made. Workers on duty must carry on safety education and corresponding skills training;
strictly operate according to operation procedure to ensure the person's security and equipment's good condition; Regularly carry on safety education to staff; Regularly organize safety inspecton
to dispel the accident potential in time.Explosionproof Explosive materials are not produced and discharged in the production workshop
of this project. There is no factor of explosion.Fire fighting system Our equipment is not easy to produce fireworks, so don't need any corresponding
fire detection device.
After Sale ServiceDCI is pleased to provide the parts,knowledge and expertise to assist with all
your plant's maintenance and upgrade needs.We can supply as below:Spare Parts:All Rollers and ShaftsMixer PartsForming Plate PartsSaw Blades Forming Belts/Conveyor BeltingCarbon BearingsDryer SprocketsChainChain GuidesHead/Tail PulleysPlat Belt Drive PulleysFilter BagsRaw MaterialModified StarchPaperFoaming AgentGlueEdge TapeFiberglassWhite TapeTechnical SupportDCI's guarantee is within 1 year free after delivery and long-term
serviceDCI can help u to modify equipment and increase production
capacityDCI can help u solve any problems related to the gypsum
equipmentDCI,the gypsum machinery expert,your best choice!