Understand how the cement is produced in mining

Cement is typically made from limestone and clay or shale. These raw materials are extracted from the quarry crushed to a very fine powder and then blended in the correct proportions. This blended raw material is called the ‘raw feed’ or ‘kiln feed’ and is heated in a rotary kiln where it reaches a temperature of about 1400 C to 1500 C. In its simplest form, the rotary kiln is a tube up to 200 metres long and perhaps 6 metres in diameter, with a long flame at one end. The raw feed enters the kiln at the cool end and gradually passes down to the hot end, then falls out of the kiln and cools down.

As a leading cement plant manufacturer, they plan all designing, construction & other outfits circumstances according to the location after proper inspection where the plant needs to be installed. Once all the designing & planning work approved the system will start with the limestone this is the basic raw material used for making cement. Limestone is combined with clay, ground in crusher & than fed in the additive silos. Iron, Sand & bottom ash combined with limestone & clay (specific ratio is important) than ground in to fine power in roller mill.

LetÂ’s show you the general cement production process plant which is as follows:

1. The cement manufacturing process begins when limestone, the basic raw material used to make cement, is transported by rail to the cement production process plant from the limestone quarry site.

2. The limestone is combined with clay, ground in a limestone crusher and fed into the additive silos. Sand, iron and bottom ash are then combined with the limestone and clay in a carefully controlled mixture which is ground into a fine powder in a 2000 hp roller mill.

3. Next, the fine powder is heated as it passes through the Pre-Heater Tower into a large kiln, which is over half the length of a football field and 4.2 metres in diameter. In the kiln, the powder is heated to 1500 degrees Celsius. This creates a new product, called clinker, which resembles pellets about the size of marbles.

4. The clinker is combined with small amounts of gypsum and limestone and finely ground in a finishing mill. The clinker grinding mill is a large revolving cylinder containing 250 tonnes of steel balls that is driven by a 4000 hp motor. The finished cement is ground so fine that it can pass through a sieve that will hold water.

5. The cement manufacturing process consists of many simultaneous and continuous operations using some of the largest moving machinery in manufacturing. Over 5000 sensors and 50 computers allow the entire operation to be controlled by a single operator from a central control room.

Henan Hongxing Mining Machinery Co., Ltd is a large-sized crusher machine, roll crusher manufacturer, and the mining equipment we researched and developed with great concentration plays an active role in the mining and ore beneficiation industry and is one of the indispensable mining crushing equipment in the mining industry.

Leave a Reply

You must be logged in to post a comment.