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Home> Products >Calcination Plant > Cement Production Line
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Cement Production Line
cement kilncement factorycement preheater
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This new type dry process cement production line is a kind of process mainly used for small, medium and large-scale cement plants. Its preheater employs outside kiln precalciner. Capable of utilizing the waste heat from kiln inlet to decompose raw meal, this line is good at saving electricity and heat. Its closed production line makes it possible to reduce its ambient dust pollution to less than 50mg/Nm3. Besides, its capacity to make use waste heat makes it quite cost efficient for users. 
 
Here in Henan Dajia Mining Machinery Co., Ltd, we offer one-stop service for you, including designing, building, suitable equipment providing, installing and debugging, technical serving, and overall contracting. And we have successfully finished the construction of cement production lines of 6000t/d, 5000t/d, 3000t/d, 2500t/d, 1500t/d, and 600t/d, etc. And also we can help developing countries to design and install small capacity cement plant. 

1. (1)Crushing

In the cement production, most of the raw materials need crushing, such as limestone, clay, iron ore, coal, etc. The limestone is of large particle sizes and high hardness after being mined. Therefore, the limestone crushing is the most essential part in cement plants.

    (2)Pre-homogenization

Homogenization adopts the scientific method of material piling and fetching, making the raw material yard possess the functions of storage and pre-homogenization.

 

2. Raw Materials Preparation

At least 3 tons of materials need grinding for producing 1 ton of silicate cement (including all kinds of raw materials, such as fuel, clinker, mixture and plaster). According to the statistics, the Dry Process Cement Production Line consumes more than 60% of the power of the whole plant, with raw material grinding taking up 30%, coal grinding about 3%, cement grinding about 40%. Therefore, the reasonable choice of grinding equipment and process flow, optimized process parameters, correct operation and the manufacturing control system are highly significant to ensure product quality and reduce the energy consumption.

 

3. Homogenization

In the new type Dry Process Cement Production, stabilizing the ingredients of the raw materials is the precondition of clinker calcining pyrology system. The homogenization system is a final check for the process.

 

4 .Decomposition

The preheater can finish preheating and partial decomposition, replacing part of the functions of the Rotary Kiln and shortening its length and enabling the materials to sufficiently mix with the red-hot air. As a result, the contact area is increased, heat transfer rate quickened, the heat transfer efficiency strengthened, fulfilling the purpose of improving production efficiency and reducing heat consumption .

 

5. Calcination

The next procedure is clinker calcination. In the Rotary Kiln, the carbonate makes further quick decomposition and a series of solid-phase reactions. With the increase in the temperature, the minerals will become liquid and dissolved in the liquid phase reactions and then form a great amount of clinker. After being calcined, the temperature of the clinker will gradually become low. Finally, the hot clinker will be cooled by the Cooler to the appropriate temperature for conveying, storing and grinding. Meanwhile, the heat will be recycled, thus the heat efficiency improved and clinker quality enhanced.

 

6 .Grinding

As the last process, it is also the most power-consuming process. Its main function exists in grinding cement clinker (also gelling agent, performance adjustment materials, etc.) to the proper sizes, forming a certain grain gradation, increasing hydration area and speeding up hydration rate, meeting the requirements of condensation and hardening of the cement slurry.

 

7 .Packing

There are bagged cements and bulk cements for shipment.

Rotary Kiln:
Diameter: 1.6-6.7m
Length: 10-130m 
Cement Production line capacity:
100TPD-6000TPD
Henan Dajia mining machinery aims to provide the better products and the most economic and reasonable solution to you, our technical experts are preparing to provide the technical assistance to you at any time, and we hope to establish a long-term relation and pursuit a higher value cooperation with you.
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