Storage

Circular Blending System

With some of the largest stackers and reclaimers of the CBS type commissioned – matching kiln throughputs of up to 12-13,000 tpd. – the CBS store type is based on well proven technology with a high continuous homogenising effect and a fully automatic continuous operation

  • The basics
  • Stacking and reclaiming method

Key benefits

  • Proven technology
  • High continuous homogenising effect
  • No end cone problems
  • Optimum utilisation of space
  • Fully automatic continuous operation (no change of pile)
  • Designed for heavy duty operation and accept products from all types of crushing installation
  • Controlled by state-of-the-art PLC-based technology designed for fully automatic operation
  • Used for both prehomogenisation and buffer storage of raw materials

How it works


The CBS type is designed for continuous Chevron stacking in one ring-shaped pile.

Stacking is achieved by a fan-shaped sprinkling action in an arc, determined by the type of material being processed in order to ensure appropriate homogenisation.

Reclaiming at the end of the pile is carried out by a bridge reclaimer working parallel to a radius line.

For cement production the pile between the bridge scraper and the stacking zone is a buffer, normally representing 3½ to 7 days' consumption.

The CBS store is based on a modular concept, which makes it possible to supply a large range of standard equipment using well proven concepts and technology.

Selection criteria

FLSmidth Circular blending system 

 

When planning which stacker and reclaimer system to use, these questions should be considered before selecting type and size:

  • Homogenising effect required
  • Future upgrading of the store
  • Open or roofed store
  • Mill feed system
  • The chemical characteristics of the materials to be handled

Learn more
More in-depth information is available here
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Stacking method

Continuous Chevron 

FLSmidth blend4 

The circular store has a round base with a ring-shaped pile, continuously being stacked at one end and reclaimed at the other.

Stacking takes place in a fan-shaped arc – typically 120°. With each sweeping movement, corresponding to two layers of material, the whole sector advances approximately 1/2° ahead.

Reclaiming methods

On/Off mode
Reclaiming capacity is higher than the mill requirement and the reclaimer therefore operates in an On/Off mode, controlled by maximum/minimum level indicators in the feed bin. On leaving the bin the material is proportioned and fed to the mill by weigh feeders.

Direct mode
If the material is difficult to handle it may be an advantage to avoid the intermediate bin between the reclaimer and the mill. This is possible in cases where material from one (or more) store(s) is to be fed to a single mill.

Reclaiming capacity will always match the mill requirement and the reclaimer will operate continuously.

The reclaimer in combination with the transporting belt conveyors acts as a weigh feeder for the reclaimed material.

Special designs
In case of special requirements due to specific material properties FLSmidth can offer a vide range of special designs.

Live harrow
The Circular Bridge Scraper can also be used for applications with “moderately” sticky materials if the harrow is equipped with a live harrow system.

  • Main Office

    FLSmidth A/S
    Cement Technologies & Corporate Matters
    Vigerslev Allé 77
    2500 Valby
    DENMARK
    Tel: +45 36 18 10 00
    Fax: +45 36 44 11 46
    info@flsmidth.com
  • Main Office

    FLSmidth Inc.
    Cement Projects Americas
    2040 Avenue C
    Bethlehem, PA 18017
    USA
    Tel: +1 610 264 6011
    Fax: +1 610 264 6170
    info-us@flsmidth.com
  • Main Office

    FLSmidth Pvt. Ltd
    Cement and Minerals Projects India
    FLSmidth House, 34, Egatoor, Kelambakkam
    (Rajiv Gandhi Salai – Chennai)
    Tamil Nadu – 603 103
    INDIA
    Tel: +91 44 4748 1000 / 2741 1000
    Fax: + 91-44-2747 0301/0302
    indiainfo@flsmidth.com
  • Main Office

    FLSmidth Salt Lake City, Inc.
    Minerals Processing
    7158 S. FLSmidth Drive
    Midvale, UT 84047-5559
    USA
    Tel: +1 801 871 7000
    Fax: +1 801 871 7001
    info.slc@flsmidth.com
  • Main Office

    FLSmidth Wadgassen
    Material Handling Technologies
    Karl Koch Str. 1
    D-66787 Wadgassen
    GERMANY
    Tel: +49 6834 4700
    Fax: +49 6834 470-339
    wadgassen@flsmidth.com

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