8.53 Centrifugal impact mills

Main Sector of relevance\IRC classification 8. Industrial Manufacturing, Material and Transport Technologies

Developers’ contact information

Scientific and Production Republican Unitary Enterprise “SPA “CENTER”
19 Sharangovich Street, Minsk BY-220018
Tel/Fax: +375 (17) 252-20-13; e-mail: crushtech@telecom.by; Web-site: http://www.npo-center.com

Vladimir Vasilyevich Vorobyev

Summary

The centrifugal impact mills are meant for dry crushing of mine and none-mine products of any firmness and hardness.

Description

The unique design solutions are embodied in the machinery developed by “SPA “Center” allowing rotating actuating elements of large weight at high speed and with considerable existing imbalances. Being a part of the mills, classifiers are used for excluding materials of the required size from the crushing zone and returning the underground material for recrushing. The equipment is characterized by:
- low materials ratio;
- low vibration level enabling to allocate it at any grade of an industrial site without any understructure;
- low capitalized and operational expenses;
- ease of maintenance.

Technical characteristics:

Parameters	Value
Identification	KI-0,4	KI-0,63	KI-1,0	KI-1,25	KI-1,6
Performance, t/h	0,05-1,0	0,5-5,0	1,5-10,0	3,0-20,0	5,0-25,0
Coarseness of supply, mm	10	20	25	25	25
Coarseness of the crushed product (adjusted), mm, max	0-0,02...3,0
Installed capacity, kW, max	40	160	290	430	520
Overall dimensions, max m: length × width × height	5,0×4,0×8,7	11,0×4,0×8,7	14,0×7,0×9,0	15,0×8,0×10,0	15,0×8,5×11,0
Weight, ton	3,5	14,5	21	40	50

Technology type

Design

Technical advantages and economic benefits

Centrifugal impact mills developed by “SPA “Center” allow:

to obtain products of the set granulometric composition;
to obtain particles of the crushed material with the shape close to cube-like;
to combine crushing and classifying processes all in one unit.

Technology differentiation and uniqueness

Obtaining products with “narrow” granulometric composition.
Enhancing minerals disclosure selectivity as compared to ball mills.

Context in which technology was identified

The centrifugal impact mills are successfully used by industrial enterprises in Russia, Belarus, Kazakhstan and Ukraine.

Technological keywords

Centrifugal impact mills, crushing.

Development Stage

Currently in use/production

Intellectual property rights

Patent pending
Specific Patent Information:
RB: Patent No. 5395, priority date 18.05.1999, patent 3246, priority date 15.06.2006.
RF: Patent No. 58054, priority date 27.06.2006.

Range of applications

The mills are used for crush grinding of mine and non-mine materials in diverse areas of construction, mineral resource and chemical industries.

Classifier Used at the EU Innovation Relay Centres

Industrial Manufacturing, Material and Transport Technologies

Preferable Regions

Europe
Asia

Practical experience

Operation of centrifugal impact mills developed by “SPA “Center” proved their high efficiency, reliability, ease of maintenance.

Environmental impact

None.

Type of collaboration sought

For sale

Terms and restrictions

The technology cannot be transferred.

Available technical assistance

Other:
The technology cannot be transferred.