The essence of calcium aluminate is the high alumina cement clinker in the cement industry, which is widely used in the production of water purification agent in recent years. The production process of calcium aluminate is similar to that of Portland cement clinker. In recent years, with the increasing market demand, its production scale has gradually expanded. At present, domestic calcium aluminate clinker production lines with annual output of 100000 tons, 200000 tons and 300000 tons have been completed and put into operation, with stable production and good product quality. HCMilling(Guilin Hongcheng) is the manufacturer of calcium aluminate vertical roller mill in calcium aluminate powder production equipment. The following describes the content of calcium aluminate powder production equipment.

1. Requirements for raw materials and fuels:

Its requirements for raw materials are mainly that the limestone grade should be high, generally CaO should be above 52%, and bauxite should meet the product grade requirements; When pulverized coal is used as fuel, the basic low calorific value of coal shall be 6500kcal/kg. The use of natural gas can better meet the operating requirements.

2. Calcination system:

Considering the economy of investment under the low production scale, the calcination system generally adopts the hollow kiln+single cooler system. The heat consumption per ton of clinker is generally above 320~350kg/t, mainly because the temperature of flue gas discharged from the kiln tail is too high, generally above 600~800 ℃. In case of large-scale production, there are two technical solutions to be considered. One is to adopt the hollow kiln+medium temperature and medium pressure waste heat power generation system+single cooler (or grate cooler) system; First, the preheating pre decomposition calcination system+single cooler (or grate cooler) system is adopted. With the former scheme, the remaining thermal power generation can well meet the power demand of the whole production line, including clinker grinding. It is a very suitable scheme under the current domestic electricity price, with the highest comprehensive energy utilization efficiency. The latter technical scheme is also a very good and advanced one. Its heat utilization rate is relatively high. The coal consumption per ton of clinker can be controlled at 110~120kg/t, and the temperature of waste gas is around 320℃. If the capital conditions permit, the construction of low-temperature waste heat power generation can be considered, and the benefits will be better. Under the condition that waste heat power generation is not considered temporarily, it can also be economically and stably operated.

1. Grinding system: It is recommended to use calcium aluminate vertical roller mill system, which can use waste heat of waste gas as drying heat source. More importantly, the grinding system of calcium aluminate vertical roller mill has good adaptability to the moisture of raw materials, and the moisture of raw materials can be as high as 15-20%. Generally, it is unnecessary to consider the drying of raw materials.

2. Pulverized coal preparation: calcium aluminate Raymond mill system is generally used for pulverized coal preparation, mainly considering the economy of investment.

3. Clinker grinding: calcium aluminate vertical roller mill system can also be used for clinker grinding. Considering the pulverization characteristics of calcium aluminate clinker, it is recommended to adopt an open circuit superfine mill system.

HCMilling(Guilin Hongcheng), as the manufacturer of calcium aluminate powder production equipment, our HLM series calcium aluminate vertical roller mill, HC series large calcium aluminate Raymond mill, and HLMX series calcium aluminate superfine vertical roller mill provide the calcium aluminate powder production line with the support of grinding equipment at various stages of raw materials, coal, raw materials, and clinker. The equipment operates stably and reliably, and the output can meet the needs of industrial large-scale production. If you need calcium aluminate powder production equipment, please contact mkt@hcmilling.com or call at +86-773-3568321, HCM will tailor for you the most suitable grinding mill program based on your needs, more details please check www.hcmilling.com.