Calcium oxide is an inorganic compound with the chemical formula CaO, commonly known as quicklime. The physical properties are white powder on the surface, off-white when impure, light yellow or gray when containing impurities, and hygroscopic.
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Calcium oxide powder application:
1. Can be used as a filler, for example: used as a filler for epoxy adhesives;
2. Used as analytical reagent, used as carbon dioxide absorber in gas analysis, spectral analysis reagent, high-purity reagent used in epitaxy and diffusion processes in semiconductor production, laboratory ammonia drying and alcohol dehydration, etc.
3. As a raw material, it can be used to manufacture calcium carbide, soda ash, bleaching powder, etc., and also used in tanning, wastewater purification, calcium hydroxide and various calcium compounds;
4. It can be used as building material, metallurgical flux, cement accelerator, and fluorescent powder flux;
5. Used as vegetable oil decolorizer, drug carrier, soil conditioner and calcium fertilizer;
6. It can also be used for refractory materials and desiccants;
7. It can be used to prepare No. 1 and No. 2 glues for agricultural machinery and underwater epoxy adhesives, and can also be used as a reactant for pre-reaction with 2402 resin;
8. For acid wastewater treatment and sludge conditioning;
9. It can also be used as a protective agent for deactivation of boilers, using the hygroscopic ability of lime to keep the metal surface of the boiler water vapor system dry and prevent corrosion. It is suitable for long-term deactivation protection of low-pressure, medium-pressure and small-capacity drum boilers;
10. It can react with water to prepare calcium hydroxide. The reaction equation is: CaO+H₂O=Ca(OH)₂, which is a compound reaction.
Calcium oxide mill selection:
The calcium oxide mill production line includes lime calcining kiln (rotary kiln or calcium oxide shaft kiln), calcium oxide crusher, storage tank, hopper, elevator, feeder, calcium oxide grinding equipment, high-pressure fan, calcium oxide separator Powder machine, calcium oxide dust collector, packaging machine, etc. Lime calcining kiln is an important equipment related to the quality of calcium oxide powder, and calcium oxide grinding equipment is an important machine that determines the fineness of calcium oxide powder. For the production of 200-mesh and 325-mesh calcium oxide powder commonly used, one of the calcium oxide vertical mill and the quicklime Raymond mill is usually selected as the host configuration of the grinding process.
