CHAINLESS LEAD OXIDE MILL

OXIDE PRODUCTION

The Evolution of Sovema’s Traditional Lead Oxide Mill, Featuring an Innovative Direct Driving System

CHAINLESS LEAD OXIDE MILL

Based on Sovema’s long-term experience in the supply of lead oxide production systems, this innovative piece of equipment features compact design with high performance. The ball mill is available in three versions with different capacities: up to 30 t/day, 24 t/day, and 14 t/day.

MILLMASTER CONTROL SYSTEMBased on a PLC unit, the mill’s control system has been developed to control the equipment operating conditions within a minimum variation range, thus ensuring constant oxide quality and operation safety conditions.

BAGHOUSE FILTERFor collection of the lead oxide powder and for cleaning the exhaust air. The filtering surface is composed of filtering bags made of special high temperature-resistant fabric, arranged vertically with access from the top for replacement. The fil-tering bags are automatically cleaned by a counter-flow PULSE-JET CLEANING SYSTEM.

CHAINLESS LEAD OXIDE MILL

INNOVATIVE DRIVING SYSTEMThe main drive motor with gearbox is directly coupled with the drum (chainless system). Thanks to this direct coupling and the related frequency control system, smooth starts and RPM management are ensured.

LUBRICATION AND COOLING SYSTEMA completely automatic lubrication and cooling system is provided: - External water cooling system with electro-valves,

whose operation is checked by an independent system.- Additional emergency cooling system.- Lubrication and cooling system for the main bearings

of the drum.- Cooling system for the gearbox oil.

VIBRATING SILO BOTTOM PARTThe bottom part of the lead cylinders silo is specifical-ly designed to feed the lead cylinders automatically at scheduled intervals to the ball mill through a vibration.

ROTATING DRUMThis is the main component of the ball mill, performing oxide production.Thanks to accurate speed control, a fast warm-up and the elimination of black oxide output are ensured.

SOVEMA GROUP S.p.A.Via Spagna 13, 37069 Villafranca di Verona VR - ITALYTel. +39 045 6335711 - Fax +39 045 6303911info@sovemagroup.com

www.sovemagroup.com

The information contained in this leaflet is for illustration purposes only and may be subject to changes.

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Compact footprint: EASE OF INSTALLATION

High automation:THE SYSTEM RUNS ON A 24H BASIS WITHOUT ANY PERSONNEL NEEDED

Direct drive:REDUCED NEED FOR LUBRICATION AND MAINTENANCE

Compliant with EU environmental standards:LEAD EMISSIONS BELOW 0.05 MG/M3 WITH SECONDARY HEPA FILTER

Turnkey customized solutions for oxide production:SOVEMA CAN SUPPLY THE COMPLETE OXIDE PRODUCTION PLANT, FROM LEAD CYLINDERS/CUBES PREPARATION TO OXIDE TRANSPORTATION TO THE MIXING PLANT, ACCORDING TO EACH CUSTOMER’S SPECIFIC NEEDS

Innovation from small-scale to large-scale production:AVAILABLE CAPACITY: 30T/DAY, 24T/DAY, 14T/DAY

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TECHNICAL DATA

OXIDE FEATURESRate of oxidation: 60 to 80% (metallic lead content 40 to 20%)Oxidation stability: +/- 1% around the average value (mill in dedicated enclosed room)Apparent density: 1.4 to 1.6 g/cm3

Acid absorption: 240 to 280 mg H2SO

4/g oxide

Particle size (typical distribution by 70% oxide content): - 50% of the sample < 2.0 micron- 70% of the sample < 5.0 micron- 90% of the sample < 7.0 micron average below 2.2 micron

*Ball Mill installed power (main motor)

Model 30 T/DAY 24 T/DAY 14 T/DAY

STANDARD ELECTRICAL REQUIREMENTS* 160 kw 132 Kw 80 Kw

WATER REQUIREMENTSAverage consumption 80 l/h 80 l/h 80 l/h

COMPRESSED AIRMin. 4 barMax. 6 Bar

Min. 4 barMax. 6 Bar

Min. 4 barMax. 6 Bar

OVERALL DIMENSIONS (LxWxH) 13.8x35x6.8 m 11.8x35x6.8 m 9.5x35x6.8 m