Chrome Ore Crusher, Algeria Chrome Ore Crusher

The Ceramic Dry Milling Procedure, in order to assure the above pointed out points, undergoes 7 really critical stages:

1.Drying of raw materials with humidity content over 20%

2.Feeding & batching of mixture components

3.Primary milling

4.Final milling-drying-particle size grading

5.Check screening & iron removal

6.Homogenizing, agglomerator, humidity control

7.Storage and press feeding rotating screen mixer

8.Supervision and Intelligent electronic managment og the plant

PRIMARY MILLING

One of the most frequent conceptual errors in the traditional dry systems is entrusting the finishing mill to carry out all of the milling on its own, with the aim of getting the highest possible amount of material.

By doing so, the following problems are encountered:

•Low mechanical resistance and subconsequent difficulty in realizing larger sizes

•Loading difficulties

•Low number of press strokes per minute.

•Excessive wear and tear of the moulds

•Longer drying & firing time

This is the reason why we deem it necessary to integrate the grain shape obtained with the primary hammer mill type P.I.G. to the body.

This mill has a high production capacity and receives feed sizes up to 150-200mm (it is possible to use the ceramic fired and green rejects) and at the output obtain 50% of the product below 400 microns (of which 40% under 100 microns).

In get to mill raw supplies with a humidity content material up to 15%, it is necessary to insert the Heating System in the mill which will prevent any clogging phenomena.

Ceramic Dry Milling Method, Ceramic ball mill

FINAL MILLING – DRYING & PARTICLE SIZE GRADING

At this point, the materials is sent to the MOLOMAX Pendular finishing Mill.

These mills, thanks to a double feeding device and also the presence of internal ploughshare distributors that optimize the loading in the milling chamber, guarantee high production rates and very low grading levels by means of a classifier installed above the milling chamber.

The final milling is carried out by sturdy pendulums, that, under the action of the centrifugal force, exert, during the rolling action, a strong pressure on the sector track lodged at the base of the mill.

The material is then collected in the upper part of the mill by means of depressurization from the method filter connected downstream and classified through a separator.

The configuration of the separator depends on the type of material and particle size desired.

The rejected particles from the separator fall into the grinding chamber to be simultaneously milled with the “fresh” material which derive again from the double feeding system, guaranteeing a perfect mixture homogenization between the heavy and light particles.

This operative system (called “open cycle” milling) is entirely sealed and does not disperse fine dust into the environment.

The Approach Filter MS57000 may also be used as an environmental filtering unit as well, therefore the relevant investment can be avoided.

In the MS Pendular Mills, it is possible to insert hot air by means of a burner with excellent thermal results (not more than 400 Kcal/lt of evaporated water) and the guarantee of consistent humidity in exiting materials that brings about remarkable advantages in the downstream humidification and agglomeration stage.

The product that exits the primary hammer mill has a versatile form and a homogeneous granulometric curve (25% below 140 mesh), and as we previously mentioned, the milled particles are intimately mixed with the powder from the pendular finishing mill.

The final result is that such versatile particles build up the tile skeleton conferring a high mechanical resistance to the green and dried product (approx. 50% higher compared to the spray dried and 70 % higher with traditional dry milling), and subconsequently with the possibility of carrying out many more operations along the glazing stages.

Ceramic ball mill

Ball mills are used primary for single stage fine grinding, regrinding, and as the second stage in two stage grinding circuits.SBM has 30 years’ experience in construction and mining equipments, and is known for its rugged, dependable product and warmhearted meticulous service. Our construction and mining equipments have been warmly popular all more than the world.

kaolin grinding mill
ultrafine mill
graphite mill