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MOLOMAX PENDULAR MILL

The MOLOMAX Pendular Mills are used to crush raw materials of various kinds, specific weight and humidity right up to average levels of hardness (clay, calcium carbonate, bentonite, chalk, dolomite etc.) with extremely high levels of production and exceptional quantities of fine material.

Thanks to the dual feeding system and the presence of specific internal plough-share distributors, loading in the crushing chamber is optimised with a level of performance that is much higher than similar kinds of mills.

Crushing is performed by large pendulum that, under the action of the centrifuge power, apply huge pressure to the track fitted in the base of the mill.

Once the material has been crushed it is transferred to the top of the mill by the air that is circulated by the fan or suction by a filter located at the bottom.
The material is also classified by the separator configured at the bottom of the crushing process to be created.

Active handling of the feeding is combined with parameters identified in real time by different process sensors, therefore automatically guaranteeing the highest level of performance in time.

MOLOMAX PENDULAR MILL -CYCLONE INSTALLATION

In the MS-CYCLONE pendular type of mills, the solid-air separation process occurs in the cycle reduction collector. This is placed between the pendular mill and the fan, connected by a whole range of tubes: this system is also known as closed cycle.

This process is used in special conditions: for example in the presence of explosive materials or materials with an electrostatic charge. In the case of the presence of raw materials with a high percentage of humidity, this system may be integrated with a warm air generator.

MOLOMAX PENDULAR MILL - AIR INSTALLATION

In the MS-AIR type pendulars, the crushed material is extracted and collected by a process filter, that subsequently downloads it to the following stage of the engineering cycle.
This kind of plant is also known as open cycle.

This technique allows for further optimisation of performance of the machine by increasing the final values of production, especially in the presence of fine particles previously pre-treated. In MS-AIR pendular type mills it is also possible to insert hot gases into air veins with excellent results in terms of heat yield.

MOLOMAX PENDULAR MILL - GRAIN SIZE SELECTION

Adjustable bell shaped classifier Ranging from 200 to 500 microns Selection accuracy: 94% Regulated using micrometric screw	Centrifugal classifier with fins Ranging from 40 to 250 microns Selection accuracy: 100% Regulated using frequency adjusters	Classifier of the cell type Ranging from 45 to 74 microns Selection accuracy: 100% Regulated using frequency adjusters

MOLOMAX PENDULAR MILL - TYPICAL GRAIN SIZE CURVE

Ceramic body composition for roof tile manufacturing	Ceramic body composition for once fired tile manufacturing	Ceramic body composition for porcelain tile tile manufacturing

MOLOMAX PENDULAR MILL INSTALLATION - FLOW CHART

MOLOMAX PENDULAR MILL - TECHNICAL DATA

Model	A	B	C	D	N. Rollers	Ø Grinding Ring	Weight (Kg.)	Cons. (kCal/lt)	Rated Power (kW)
									Mill	Filter	Class.	Feed.
MS-3/120	1850	3490	2110	2030	3 - Ø385	1200	9000	400	45	55	9	3
MS-4/150	2430	4200	2190	2820	4 - Ø490	1500	13000		110	132	11	3+3
MS-6/190	2830	4300	2300	3700	6 - Ø490	1900	19000		132	160	11	3+3
MS-4/230	2950	5200	2800	4000	4 - Ø600	1900	25000		200	200	11	3+3

PRODUCTIONS
Type of incoming material	Max incoming piece size (mm)	Max moisture content at entrance	Max fineness at exit (microns)	MOLOMAX
				3/120	4/150	6/190	4/230
				ton/h
Clay + Feldspar	30	20%	< 300	5 - 9	12 - 31	18 - 40	23 - 50
Limestone Magnesite Coal			< 150	2,5 - 4	5 - 11	8 - 16	11 - 19
Gypsum Talc			< 45	0,6 - 1,2	2,5 - 5	3,5 - 7,5	4,2 - 10

MOLOMAX PENDULAR MILLS – ANALYSIS OF RUNNING COSTS

The following example is based on a Manfredini & Schianchi complete raw materials preparation plant with a MOLOMOX pendular mill and a non M&S process with a rotating track mill which has the same throughput of 30 T/h for the same single fired ceramic composition.

ELECTRICAL CONSUMPTION COMPARISON
	MOLOMAX	Rotating track mill
Pregrinding	132 kW (*)	55 kW
Main motor	200 kW	315 kW
Separator motor	11 kW	22 kW
Process filter motor	160 kW	250 kW
Wetting machine	2 x 18,5 kW	132 kW + 11 kW
Environmental filter fan	Not necessary (**)	55 kW
Total
Total power installed	540 kW	840 kW
Power consumed	345 kW (***)	672 kW
Production consumption	11,5 kW/ton	22,40 kW/ton

(*) Pregrinding with Hammer mills type P.I.G.
(**) The process filter also carries out this operation
(***) Technology with inverter

THERMAL CONSUMPTION COMPARISON
	MOLOMAX	Rotating track mill
Thermal consumption	400 kCal/lt	850 kCal/lt
Ceramic mixture with 7,5 % humidity
Maximum humidity permitted for optimal functioning	3,5%	1%
Burner installed	750.000 kCal	2.000.000 kCal
Maximum consumption	61 Nm3/h	205 Nm3/h
Temperature of material at filter exit	24°C Max	70°C
Ceramic mixture with 12 % humidity
Maximum humidity permitted for optimal functioning	3,5%	1%
Burner installed	1.500.000 kCal	3.500.000 kCal
Maximum consumption	136 Nm3/h	365 Nm3/h
Temperature of material at filter exit	30°C Max	80°C

TECHNICAL & MAINTENANCE COSTS COMPARISON
	MOLOMAX	Rotating track mill
Maximum feed size at entrance beyond which a further pregrinding is needed.	200mm	100mm
Insulation of downstream machinery after milling	Not necessary	Necessary
Average cost of spare part	0,8 - 1,2 €/ton	1,2 - 1,5 €/ton
Machine stoppage time for maintenance	8 h	48 h
Necessary hoisting equipment	Fork lift with 3,5 ton capacity	Crane with 10 ton capacity

END PRODUCT COMPARISON
MOLOMAX	Rotating track mill

 

The data shown is indicative and may vary without notice