100 tpd cement plant project cost

Production line equipment configuration

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Work flow of cement production line

Limestone is more commonly used in the cement preparation process, but the mined limestone generally has a larger particle size and needs to be crushed. In general, the processing of limestone into cement requires four raw materials: homogenization of raw materials, preparation of coal powder, calcination of clinker, and cement grinding stage.

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Advantages of cement production line

Process parameters

During the cement production line, at least 3 tons of materials (including various raw materials, fuels, clinkers, mixtures, and gypsum) must be ground for each ton of portland cement. According to statistics, the grinding process of dry cement production lines requires The power consumed accounts for more than 60% of the plant’s power, of which raw material grinding accounts for more than 30%, coal grinding accounts for approximately 3%, and cement grinding accounts for approximately 40%. Therefore, reasonable selection of grinding equipment and process flow, optimization of process parameters, correct operation, and control of the operating system are of great significance for ensuring product quality and reducing energy consumption.

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Production method

Portland cement production process is representative in cement production equipment. It uses limestone and clay as the main raw materials, crushes, mixes, and grinds it into raw meal, and then feeds it into a cement kiln to calcinate the mature material and then mature it. It is made by grinding a suitable amount of gypsum (sometimes with mixed materials or admixtures).

Depending on the raw material preparation method, cement production equipment can be divided into two types: dry method cement production line (including semi-dry method) and wet method cement production line (including semi-wet method).

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The main advantages of dry production are low heat consumption (for example, the dry kiln clinker with a preheater has a heat consumption of 3140 ~ 3768 J / kg). The disadvantages are that the raw material composition is not easy to uniform, the workshop dust is large, and the power consumption is high. . Wet production has the advantages of simple operation, easy control of raw material ingredients, good product quality, convenient slurry transportation, and less dust in the workshop. The disadvantage is high heat consumption (the heat consumption of clinker is usually 5234-6490 J / kg).

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