After gypsum rock is fed into crusher system to get size of 1- 4cm rocks, which is fed to grinding mill to get raw gypsum powder/stucco, and it is conveyed to bucket elevator to stable silo, after measured automatically and accurately, fed into calcination kiln. With large quantity of heat from hot air stove or boiler, raw gypsum powder becomes calcined gypsum powder. After cooling or aging, the finished product is packed into different bags by packing machine.

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 (gypsum stucco/powder)-packing

3. Scope of application:

Gelled material made by dehydrating natural gypsum(raw material). Its main component is β-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.

Responsibility of Buyer and Seller

Prepared by Buyer

1.1 Machinery and tools for installation, commission and maintenance

1.2 Transportation tool:2 sets of forklifts

1.3 Power supply system

a. High-voltage power supply

b. Substation and distribution station

1.4. Water supply& storage and drainage system

1.5 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 equipment

Provided by Buyer

2.1 Providing round-trip ticket and other transportation cost for the Seller’s workers

2.2 Providing accommodation and all kinds of necessary extra charges for the Seller’s workers during installation and commissioning and training period

2.3 Providing all necessary large tools for installation, such as crane, forklift, welder, acetylene& oxygen cutting machine, etc

2.4 Providing assistant workers to cooperate with the Seller’s workers during installing according to the Seller’s requirement

2.5 Usage permission for special equipment

Provided by Seller

2.1 Production equipment

2.2 Providing installation guiding engineers and technical workers

2.3 Providing 1 team leaders and 1 interpreters

2.4 Providing equipment foundation drawings, general arrangement drawing of production line (layout plan, elevation drawing and side view drawing) within 40 days after receiving down payment

2.5 Providing equipments’ operation manual during training

2.6 Providing main equipments’ general assembly drawing, wiring diagram of control cabinets, PLC computer programs within 7 days after acceptance

2.7 The Seller is in charge of commissioning and training

a. 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.