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Liaoning Dongda Powder Co., Ltd. has 30 years of industry experience and is committed to product development and application in chemical, metallurgy, mining, environmental protection, building materials, and power industries. Our company has excellent scientific research groups, perfect experimental equipment, large-scale production and processing manufacturing base, specializing in powder engineering technology research and contract engineering projects.
Type Ⅱ Anhydrite Calcination Process for Phosphogypsum Production

Phosphogypsum contains soluble phosphorus, eutectic phosphorus, fluorine, organic matter and other harmful impurities, which deteriorate the performance of phosphogypsum, which is the main factor that cannot be used directly. Soluble phosphorus, fluorine and organic matter are distributed on the surface of phosphogypsum crystals. Impurities such as soluble phosphorus, eutectic phosphorus, and fluorine affect the hardening of cementitious materials and the bonding between crystals.

Sludge dryer

Sludge dryer product introduction: The system fan directly introduces the high temperature flue gas into the dryer, and the sludge is transported into the dryer by the screw feeder. Under the combined action of the dryer's dispersing mechanism, material guide plate, copying plate and other structural components, the wet material is continuously scattered, picked up and scattered, and fully contacted with the high-temperature flue gas, and the physical process of mass transfer and heat transfer occurs. , for dehydration and drying of materials. The material dried by the primary dryer is sent to the secondary dryer through the screw feeder, and the hot air enters the secondary dryer from the air outlet of the primary dryer through the pipeline, and continues to carry out further mass and heat transfer with the material. Dry to the target moisture content in the secondary dryer, and the products that meet the standard are discharged from the discharge port. The dry tail gas and materials discharged from the secondary dryer are separated and recovered by the dust collector, and the tail gas from the cyclone dust collector is sent to the water film dust collector through the system induced draft fan for washing and then discharged into the atmosphere.

Magnesium Chloride Pyrolysis Process

The production of magnesium oxide by pyrolysis of magnesium chloride can be directly decomposed from magnesium chloride into magnesium oxide by one-step and two-step processes, and the formed hydrogen chloride mixed gas can be absorbed to produce acid. %, the detailed process can be communicated with our company offline.

Boron Powder Drying and Calcination Equipment

Our company cooperated with Liaoning Fengcheng Boron Powder Group to carry out a lot of tests and research on the active calcination of low-grade ferroboron ore, and developed the flash calcination new process through which the finished product activation rate after calcination is significantly higher than that of calcinated products by traditional rotary kiln. 

Vanadium Pentoxide (V2O5) Drying and Calcination Process

It applies drying, decomposition and fast melting technology to manufacture V-chips, which is the internationally advanced process equipment

Industrial waste salt Miscellaneous salt harmless disposal equipment

In the production process of organic and inorganic chemical products, a large amount of salt-containing waste water is produced, which is evaporated and concentrated to form solid crystals, and the crystalline salt contains a large amount of organic or inorganic impurities. Can not be used as industrial raw salt. Such as long-term stacking will occupy a lot of space, causing serious pollution and damage to the ecological environment.