Cement plants / mill / rotary kilns

 Production of Portland cement

Production of Portland cement may be divided into two sets of operations. The first can be attributed to the production of clinker, the second - the manufacture of Portland cement clinker with gypsum, and other active mineral additives.
Production of clinker - the most complex and energy-intensive process, which consists in the extraction of raw materials, their blending and roasting. Currently, there are two ways of preparing the raw material mixture of the starting components: "wet", in which grinding and mixing raw materials is carried out in an aqueous medium, and "dry" when the materials are crushed and mixed in the dry state [2].
Each of these methods has its advantages and disadvantages. The aqueous medium is facilitated regrind when co-grinding rapidly achieve high homogeneity of the mixture, but the fuel consumption by baking in a 1.5 - 2 times larger than the "dry". "Dry" method, in spite of its technical and economic advantages compared to "wet" for a long time to be of limited use because of the poor quality of the clinker. However, advances in the art of fine grinding and homogenization of dry mixes made it possible to obtain high-quality Portland cement and "dry" method. Figure 1 shows the flow diagram of the "dry" method of clinker production.

 

 Scheme of cement plant

 



Specification of a cement plant with a capacity of 15 tons per hour

 

 

Name

Quontity

1

Crushing

1  Jaw crusher  400*600                          30кВт

2  Belt conveyor  500mm*12m                3 кВт

3  Composite crusher  Ø 800                  22 кВт

4  Rotary Dust Collection  PD180*49    7,5 кВт

5  Belt conveyor  500mm*12m                 3 кВт

6  Bucket elevator  250mm*20m            5,5 кВт

7  De-iron separator  900*500 

1

2

Drying

1  Belt conveyor  500mm*12m                3 кВт 

2  Bucket elevator  250mm*20m            5.5 кВт

3  Dryer  2.2m*15m                                30  кВт

4  Belt conveyor  500mm*12m                 3  кВт

5  Bucket elevator  250mm*20m            5.5 кВт

6  Dust Collection  DT180*78               7.5  кВт

7  Feeder  GZ2                                     0.15  кВт

1

3

Raw material

1  Belt conveyor  500mm*12m               3  кВт

2  Ball mill  2.2*11m                            570  кВт

3  Bucket elevator  250mm*20m       5.5 кВт*2 

4  Concentrator  SLX900                      169 кВт 

5  Feeder  GZ2                                 0.15х5 кВт 

6  Bucket elevator  250mm*20m          5.5  кВт

7  Automatic batching system 

8  Screw Conveyor  219mmX9m      7.5хкВт

1

4

Клинкер

1  Feeder  GZ2                                  0.15 кВт х

2  Screw conveyor  219mmX9m        7.5 кВт 

3  Bucket elevator  250mm*20m        5.5 кВт 

4  Rotary kiln  Ø 3*48                        182 кВт 

5  Cooling machine  Ø 3000*30000     75 кВт

1

5

Coal grinding

1  Belt conveyor  500mm*12m             3  кВт

2  Composite crusher  Ø 800                22 кВт

3  Belt conveyor  500mm*12m               3 кВт 

4  Coal ball mill  Ø 1830*7000          245  кВт

5  Bucket elevator  250mm*20m        7.5  кВт

6  Feeder  GZ2                                   0.15 кВт

1

6

Grinding section

1  Belt conveyor  500mm*12m                 3  кВт

2  Composite crusher  Ø 800                   22  кВт

3  PM de-iron separator  400*700 

4  Bucket elevator  250mm*20m               7.кВт

5  Feeder  GZ2                                       0.15 кВт х

6  Automatic batching system   

7  Bucket elevator  250mm*20m             7.5  кВт

8  Belt conveyor  500mm*12m                   3  кВт

9  Belt conveyor  500mm*12m                   3  кВт

10  Dust Collection  DT-78                      7.5  кВт

11  Dust Collection  DT-98                       11  кВт

12  Ball mill  Ø 2.2*11m                         570  кВт

13  Bucket elevator  250mm*20m            7.5  кВт

14  Concentrator  SLX1000                      215 кВт 

15  Screw conveyor  GX500                      11  кВт

 

1

7

Finished product package

1  Bucket elevator  250mm*20m                  7.кВт

2  Screw conveyor  GX500                         11  кВт

 3  Feeder  GZ2                             0.15 кВт хкВт

4  Screw conveyor  GX400                          7.5  кВт

5  Bucket elevator  250mm*20m                 7.5  кВт

6  Rotary Screen  GT1025                              3  кВт

7  Concentrator  DT78                                 7.5  кВт

8  Packing machine  BGLJ-2                          3  кВт

1