Raw mill is made up of feeder part discharging part rotating part transmission partreducersamll transmission gear motorelectric control etc. Its a key equipment for grinding materials widely used in powder-making production line such as cement silicate sand new-type building material ore dressing of ferrous metal and non-ferrous metal etc. Do your know how does the raw mill work in the cement plant This paper mainly introduces the raw mill in cement plant.Get A Quote
Raw mill is made up of feeder part discharging part rotating part transmission partreducersamll transmission gear motorelectric control etc. Its a key equipment for grinding materials widely used in powder-making production line such as cement silicate sand new-type building material ore dressing of ferrous metal and non-ferrous metal etc. Do your know how does the raw mill work in the cement plant This paper mainly introduces the raw mill in cement plant.
The cement is conveyed by belt or powder pump to a silo for storage. Cement plants normally have sufficient silo space for 120 weeks production depending upon local demand cycles. The cement is delivered to end-users either in bags or as bulk powder blown from a pressure vehicle into the customers silo. In industrial countries 80 or more of cement is delivered in bulk.
Our raw mill has been widely used in the cement making plant. In a large number of customer feedback we received a lot of enthusiasm and positive reaction. They speak very highly of our machines. According to a lot of customers response this plant generally have the following four advantages.
The cement manufacturing plant can be divided into five steps
The raw materials grinding power consumption takes 30 cement grinding power consumption takes 40 other parts takes 30 it is important to choose cement grinding mill to keep cement quality and reduce energy consumption.
AGICO supplies cement crusher cement rotary kiln cement ball mill vertical cement mill preheater and other related cement plant equipment.
Cement crusher the raw materials is crushed into required sizes by different types f cement crushers.
Cement kiln cement kiln process the cement raw material into cement clinker our cement kiln has advantages of low cost energy-saving advanced pre-heating system good sealing and environmental protection.
Cement grinding mill our cement mill is widely applied to dry or wet cement grinding unit it can be used as raw material mill also apply for cement grinding plant.
Auxiliary equipment there are many auxiliary cement equipment in the cement plant they play own roles in every sections.
White cement is a type of special cement belongs to decoration cement. In general Portland cement is greyish-green as the name suggested white cement is white.
In the cement manufacturing process in order to avoid the mixing of colored impurities calcination of white cement plant mostly use natural gas or heavy oil as fuel. Reduction slag gypsum and white granulated slag produced by electric steelmaking can also be used to produce white cement without clinker.
Whiteness the whiteness is a typical standard for color on the market the whiteness of white cement is required at 80-84 on the international market and whiteness is about 84-88.
Fineness the finer the cement the more the surface area increases the faster the cement hydrates and the stronger the cement is. The fineness of cement ensures cement quality.
Strength strength is another typical standard there some factors to affect the cement strength such as constituent minerals of clinker sintering degree crystalline state cement fineness admixture activity cement particle gradation etc.
Setting time according to the national standard of China white Portland cement must have initial setting time more tan 45mins the final setting time is less than 10h.
The white cement manufacturing process is similar to the Portland cement manufacturing process so we introduce the factors that affect cement quality. Just like general cement manufacturing plant the white cement manufacturing process can be generally divided into six steps
In the white cement manufacturing process the kiln firing system is the key to the entire cement production line which affects the product quality and energy consumption of the entire white cement plant. Therefore it is important to rationally design the kiln firing system. AGICO CEMENT introduces the design of the rotary kiln firing system on the white cement plant.
The volume should meet the average residence time of the gas in the furnace is equal or more than 5.5s because the clinker from the kiln is cooled by the water spray which will cause the temperature of the tertiary air decrease resulting in a corresponding increase in the fuel combustion time. It is important to ensure that the material entering the kiln has a high carbonate decomposition rate and reduce the calcination pressure in the cement kiln.
The clinker adopts a combination of water spray quenching and grate cooler. The principle is to promote the reduction of ferric iron in the clinker to divalent iron to increase the whiteness of the clinker.
Feb 10 2016nbsp018332re VRM vs Ball Mill for Cement Grinding. Specific power consumption- high for ball mill and Low for VRM Maintenance costs- high for VRM and low for Ball mill Process controlprocess technology- ball is operation friendlt and simple in operation but VRM requires some PID or
Offering exceptionally strong focus on the cement industry were recognized as the global industrial Advanced Process Control leader in this vertical. Our deep experience and understanding of the cement industry and its processes have enabled us to successfully innovate production and increase cement mill efficiency for every cement mill we .
There are more than twenty types of cement used to make various specialty concrete however the most common is Portland cement.
Clinker quality depends on raw material composition which has to be closely monitored to ensure the quality of the cement. Excess free lime for example results in undesirable effects such as volume expansion increased setting time or reduced strength. Several laboratory and online systems can be employed to ensure process control in each step of the cement manufacturing process including clinker formation.
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