Zinc oxide is a commonly used chemical additive,which is widely used in the production of plastics, silicate products, synthetic rubber, lubricating oils, paints, ointments, adhesives, foods, batteries, flame retardants,etc. After processing in rotary kiln, the application of zinc oxide is more extensive, because the various processing methods can fully satisfy the properties of zinc oxide and the needs of users. The following is process introduction for processing zinc oxide in rotary kiln
The zinc charge and the coking coal are pulverized into less than 40 mesh, and they are mixed at a ratio of 1:0.30 to 0.35, uniformly stirred to obtain a mixture, and the mixture is processed into particles with diameter 8-15 mm. Finally the granules are put into a rotary kiln for smelting. When producing zinc oxide from zinc ore or zinc-containing industrial slag, it has the characteristics of greatly saving coke or coal, good quality of finished product, high productivity, and small nodulation.
In addition, there are other calcination methods for processing zinc oxide in rotary kiln:
1. Direct reduction method: The direct reduction method is to pretreat the zinc oxide to be processed, and then carry out a series of operations of grinding, mixing, and grouping, and then enter the zinc oxide rotary kiln for oxide reduction and metal aggregation to produce After the clinker is re-selected, the zinc minerals are screened out. At the same time, other processes can be used, such as zinc oxide rotary kiln ore furnace technology, which needs to be first dried, heated, calcined by zinc oxide rotary furnace, and then refined by the ore furnace to finally reduce the zinc material.
2. Blast furnace calcination: After dehydration, calcination and agglomeration, the zinc oxide-containing ore is combined with coke and solvent to enter the blast furnace smelting to obtain coarse zinc, which can be obtained after refining; in the process, Operated by electric furnace. After dehydration and agglomeration, the zinc oxide ore is sent to an electric furnace to complete smelting with a certain amount of coke and solvent, and the obtained crude zinc oxide is re-refined to obtain zinc ore. In this process, the electric furnace operates to complete the smelting with carbon as a reducing agent.
China ZK Corp is a professional manufacturer of zinc oxide rotary kiln. Our zinc oxide rotary kiln has the characteristics of stable operation, high output and low fuel cost.Welcome to contact us to get quotation and technical data.
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