Rohstoffmühlen (МС)

Figure. Tube mill.

Tube ball mills are designed for grinding of raw materials and cement clinker with additives in cement production, grinding of different ore minerals and nonmetallic minerals in open cycle or in closed cycle. The mills are used also in manufacturing of construction materials, in mining and mining-and-chemical industry, some other industries for grinding of refractory materials, fertilizers, and ore dressing of ferrous and nonferrous metals.

Material for grinding is charged to the grinding chamber of the barrel mill for degradation. The barrel rotates and material grinding is caused by impacts and friction of grinding media.

Tube ball mills have great reliability, simple design, high productivity and safety in work. They can’t be damaged by non-crushable parts in the mill charge.

The mills productivity depends on the grinding materials properties (resistance, availability for grinding), size of the charged material, wetness, grinding fineness, uniformity of electricity supply and filling the barrel with grinding media and grinding material.

Tube raw mills of МС type are designed for grinding of raw materials of cement production by wet process.

Table. Raw mills МС.

Size, DxL, m	Productivity,t/h	Main drive motor		Grinding media weight, t	Sizes, mm					Figure number
		Power,kW	Voltage,V		А	Б	В*	Г*	Д*
2,0х10,5	17,6	500	6000	32	2000	10520	12000	22435	2300	1 and 2
2,6х13,0	41	1000	6000	80	2600	13020	14985	310250	1015	4
3,2х8,5	145	1000	6000	85	3200	8520	10540	28000	1015	4
3,2х12,5	65	1600	6000	120	3200	12500	14990	25450	3950	2
3,2х14,0	65	2000	6000	140	3200	14020	16510	33770	2400	2
3,2х15,0	70	2000	6000	150	3200	15020	17510	34770	2400	1 and 2
4,0х13,5	135	3150	6000	226	3970	13910	16350	39513	1300	3 and 4

Notes:

• the given productivity is for grinding materials according to GOST 12367-85;

• the sizes are of informative character;

• when necessary, the mills can be made with other sizes of barrels.

Layout options of mills with different versions of the drive

Fig. 1. Mill with parallel-shaft reduction gear of the main drive

                                                                                                 

                                                            

                                                                      Fig.2. Mill with planetary reduction gear of main drive

                                                         

Fig. 3. Mill with “Symmetro” reduction gear of main drive

1 – charging output

2 – bearing

3 – rotating part

4 – inlet chamber

5 – drive

6 – main electromotor