Zhengzhou Hengyang Industrial Co., Ltd
| Payment Terms | T/T |
| Supply Ability | 270 sets/month |
| Delivery Time | 20-40 days |
| Packaging Details | negociated |
| Name | Rotary tubular calciner with integrated cooler for gypsum plant |
| Application | gypsum |
| Capacity | 5-90t/h |
| OEM | Accept |
| Condition | New |
| Brand Name | Hengyang |
| Model Number | HC-581 |
| Certification | ISO9001 |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T | Supply Ability | 270 sets/month |
| Delivery Time | 20-40 days | Packaging Details | negociated |
| Name | Rotary tubular calciner with integrated cooler for gypsum plant | Application | gypsum |
| Capacity | 5-90t/h | OEM | Accept |
| Condition | New | Brand Name | Hengyang |
| Model Number | HC-581 | Certification | ISO9001 |
| Place of Origin | China | ||
| High Light | Rotary Tubular Calciner ，Rotary Tubular Calciner With Integrated Cooler ，Rotary Tubular Calciner For Gypsum Plant | ||
Gypsum is calcium sulfate dihydrate (CaSO4 2H2O), a white or gray naturally occurring mineral. Raw gypsum ore is processed into a variety of products such as a portland cement additive, soil conditioner, industrial and building plasters, and gypsum wallboard. To produce plasters or wallboard, gypsum must be partially dehydrated or calcined to produce calcium sulfate hemihydrate (CaSO4 ½H2O), commonly called stucco. A flow diagram for a typical gypsum process producing both crude and finished gypsum.
In this process gypsum is crushed, dried, ground, and calcined. Not all of the operations are performed at all gypsum plants. Some plants produce only wallboard, and many plants do not produce soil conditioner. Gypsum ore, from quarries and underground mines, is crushed and stockpiled near a plant. As needed, the stockpiled ore is further crushed and screened to about 50 millimeters (2 inches) in diameter.
If the moisture content of the mined ore is greater than about 0.5 weight percent, the ore must be dried in a rotary dryer or a heated roller mill. Ore dried in a rotary dryer is conveyed to a roller mill, where it is ground to the extent that 90 percent of it is less 149 micrometers (µm) (100 mesh). The ground gypsum exits the mill in a gas stream and is collected in a product cyclone. Ore is sometimes dried in the roller mill by heating the gas stream, so that drying and grinding are accomplished simultaneously and no rotary dryer is needed. The finely ground gypsum ore is known as landplaster, which may be used as a soil conditioner. In most plants, landplaster is fed to kettle calciners or flash calciners, where it is heated to remove three-quarters of the chemically bound water to form stucco.
Calcination occurs at approximately 120 to 150°C (250 to 300°F), and 0.908 megagrams (Mg) (1 ton) of gypsum calcines to about 0.77 Mg (0.85 ton) of stucco. In kettle calciners, the gypsum is indirectly heated by hot combustion gas passed through flues in the kettle, and the stucco product is discharged into a "hot pit" located below the kettle. Kettle calciners may be operated in either batch or continuous mode. In flash calciners, the gypsum is directly contacted with hot gases, and the stucco product is collected at the bottom of the calciner. At some gypsum plants, drying, grinding, and calcining are performed in heated impact mills. In these mills hot gas contacts gypsum as it is ground.
The gas dries and calcines the ore and then conveys the stucco to a product cyclone for collection. The use of heated impact mills eliminates the need for rotary dryers, calciners, and roller mills. Gypsum and stucco are usually transferred from one process to another by means of screw conveyors or bucket elevators. Storage bins or silos are normally located downstream of roller mills and calciners but may also be used elsewhere.
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
2015
Total Annual:
8500000-12000000
Employee Number:
>95
Ecer Certification：
Verified Supplier
Hengyang Industry is an Chinese Company based in Zhengzhou city that manufactures, on proprietary technology, plants and equipment for waste recycling and recovery with energy production, material recovery or production of finished goods. Innovation, R&D, passionate and skilled team along... Hengyang Industry is an Chinese Company based in Zhengzhou city that manufactures, on proprietary technology, plants and equipment for waste recycling and recovery with energy production, material recovery or production of finished goods. Innovation, R&D, passionate and skilled team along...
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