What is cooler in cement plant?

Uses: The grate cooler is an important main equipment in the clinker burning system of the cement plant. Its main function is to cool and transport the cement clinker. At the same time, it provides hot air for the rotary kiln and the decomposition furnace, which is the heat recovery of the firing system.

Why they are important for finish grinding cement?

Grinding aids prevent ball coating and consequently mill efficiency is increased. Grinding aids reduce power costs thus paying their way. Savings of 2.5 US cents per ton of cement, depending upon the specific surface, are reported.

How does a cement cooler work?

Working principle of clinker cooler The grate cooler is a type of quench cooler. The cold air flows from the squat down and perpendicular to the direction of clinker movement through the layer, so the thermal efficiency is high.

What is a clinker cooler?

During the cement production, the raw material reaches a temperature of about 1450 ° C in the kiln. The clinker particles, which are first sent to the isokinetic inlet from the kiln, are cooled up to 65 ° C + ambient temperature in the cooling equipment operating with the sudden cooling principle.

What is a cooler grate?

The essential characteristic of a grate cooler is a layer of clinker spread on a more-or-less horizontal perforated grate, through which cold air is blown. The grate is made of steel, and the cold air keeps it sufficiently cool to avoid melting or burning.

How is clinker cooled?

The hot clinker produced in the rotary kiln is transferred to a cooler, where it is cooled by air blowers before being conveyed to the cement mill. In the clinker cooler, the hot clinker is rapidly cooled by air in order to obtain a high degree of efficiency.

Which mill is more effective for final grinding of cement?

Roller mills The grinding action employs much greater stress on the material than in a ball mill, and is therefore more efficient. Energy consumption is typically half that of a ball mill.

What is the degree of grinding of cement?

Answer: The degree of grinding of cement is called fineness.

How does a grate cooler work?

Why clinker is cooled rapidly?

Clinker cooling is necessary because: Hot clinker is difficult to convey. Hot clinker has a negative effect on the grinding Process. The reclaimed heat content of the hot clinker of about 200 kcal/kg, is an important factor lowering the production cost.

What is clinker production?

Cement clinker is a solid material produced in the manufacture of Portland cement as an intermediary product. It is produced by sintering (fusing together without melting to the point of liquefaction) limestone and aluminosilicate materials such as clay during the cement kiln stage.

What is the function of preheater in cement plant?

Preheaters are used industrial dry kiln cement production plants to heat the raw mix and drive off carbon dioxide and water before it is fed into the kiln.

Why cool cement before storage?

The cooling of cement is an important step prior to storage in mitigating gypsum dehydration and subsequent moisture liberation which can lead to lump formation. Recommendations vary but it is generally accepted that with mill outlet temperatures of around 110ºC – 120ºC, cooling to below 80ºC is necessary to avoid this reaction.

Can Solex cool cement effectively?

Extensive pilot testing carried out at the Lafarge cement plant in Exshaw, Alberta, Canada has proven that Solex can effectively and efficiently cool cement as part of the finish grinding process, and can provide designs for full production capacities of 50 to 200+ tons per hour.

Why choose Solex powder coolers?

With a heat transfer area of almost 10 times that of traditional vertical powder coolers combined with up to 75 per cent less water usage, the Solex cooler offers high efficiency, effectiveness and reliability.