For elevating to storage Sandwich-Belt High-Angle Conveyors offer all of the positive features of conventional open trough conveyors but without the incline limitation. DSI Snake-Sandwich conveyors offer unlimited capacities while displacing minimal space.

Please check out our web site.

Joseph A. Dos Santos, PE ■

Dear Pawel,

If you are interested in the potential for large power reduction on all classes of conveyor belts, increase in life and strength which all lead to lower capital and operating costs, drop me a note.

I am delivering two papers of significance on the above at the Beltcon 12 conference in Johannesburg in July and later in India in Decmeber.

I hope to also issue a Bulk Solids set of articles regarding coal lump degradation control and dust generation and emission control using advanced chute design techniques.

Lawrence Nordell

Conveyor Dynamics, Inc. ■

Hello Pawel Kawalec,

Coal is one of the basic materials for energy source, across the world. There are innumerable users of coal all over the world.

The coal storage and reclaiming facility may be mainly at three places (1) At mines, (2) At the plants using the coal, (3) At the transfer facility such as at ports or in-land facility between railways and road transport etc.

The storage facility at each of this place will be of specific design to suit the specific requirement. Please note that storage facility will be always accompanied by reclaim facility. The nature of the system will be depending upon the conveying rate. In view of this, there are various methods and models to handle the coal. It is better if you narrow down your area of interest and accordingly look for the type of coal handling system used for the storage etc.

Please note that there cannot be storage system in isolation. There will always be in-flow system and outflow system that could be of elaborate nature incorporating very sophisticated and specialized machines etc. Often, the coal handling facility will include crushing, screening, sampling, weighing, fire protection, etc. So the subject is vast.

Hope the information will be of use to you.

Regards,

Ishwar G Mulani.

Author of Book : Engineering Science and Application Design for Belt Conveyors.

Advisor / Consultant for Bulk Material Handling System & Issues.

Email : parimul@pn2.vsnl.net.in

Tel.: 0091 (0)20 25882916 ■

The basics for coal storage are well established. However, different conditions apply to large granular material and damp fines. A good starting point is to understand gravity flow regimes in storage, (Educational Resources for Particulate Technology Vol 1, No. 1,Art 3 (1999 Jan) @ 1999 Univ. of Florida), bin design geometry, (www.ajax.co.uk/hopperselectionchart), flow criteria, (Jenike Bull 123, Univ. of Utah), ‘Industrial characterisation of solids’(Ajax tech doc.), discharge aids and flow inserts, (Ajax tech doc.), Flow problems and solutions (Ajax tech doc).

It is not realistic to pick up the experience and expertise of a specialist by reading a few articles but a sound introduction enables a user to recognise the qualities needed to achieve a good design. ■

Dear Mr. Pawal,

Please specify the problem you are facing.For coal storage, the problem often we face is the recomended stacking height to avoid ignition.Do you have? Or else.

Regards.

A.Banerjee ■

Dear Pawel,

To start you off, perhaps you can begin by considering the two most basic methods of storage namely open yard and covered storage. The management and stacking/reclaiming principles of the open yard system are fairly well established and published in many standards texts and articles. Whereas for covered storage, you might be able to find more information about slot bunkers and plow feeder arrangements more than others. Good luck.

Barry Chung ■

Independent Consulting Engineer for

Carbonisation and Coal and Coke Handling

January 12, 2005 – Kdz.-Eregli (Turkey) - After more than two decades, the Chief Executive Engineer of the Coal and Coke Handling Department of Eregli Iron and Steel Works, Inc., Privatdozent, Dr.-Ing. Hayri Ergun, has settled down for business with his own engineering office in Kdz.-Eregli. He is certified and sworn Engineer and Member of Verein Deutscher Eisenhüttenleute (Germany) and the Chamber of Mining Engineers (Turkey) and is an expert of coal carbonisation and coal and coke handling . Metallurgical and Formed Coke Production with and without conventional coke ovens, also with coals with lower coking properties, and high-capacity coal and coke handling plants and coke ovens are the basis of his know-how in this field. For further information please consult https://who.bulk-online.com/profile/...yri-ergun.html

The following services are offered in particular:

• Consulting, advice, examination and recommendation with regard to dimensioning and designing of Industrial Plant Engineering, Coke Making Technology, Bulk Materials Handling and Processing

• Risk Survey Reports and Judgement and Evaluation of Damage,

• Special Investigation and Concluding Facts,

• Representation, and Presentation of know-how,

• Process optimization and drawing conclusions from available results and facts,

• Concepts and expert opinions with regard to newconstruction and reconstructions,

• Arbitrator by order of the contract parties.

• Individual plant and personal optimization for every customer and/or project monitoring,

• Technical evaluation on patents regarding this kind of machinery, equipment and procedure.

• Evaluations and judgements of Process, Plant, Equipment and Technology

Certification and swearing-in guarantees impartiality and independence as well as compliance with the duties of a publicly certified and sworn Engineer.

For more details please contact:

Dr. H. Ergun

Privatdozent

Independent Consulting Engineer

Erdemir Cad., 62/2

Kdz.-Eregli/Türkei

Tel.: ++90 372 323 15 67

++90 372 322 76 22

GSM: ++90 532 507 95 93

E-Mail: h.ergun@mail.koc.net ■

Independent Consulting Engineer for Bulk Handling & Processing

Independent Consulting Engineer for

Carbonisation and Coal and Coke Handling

June 9, 2004 – Kdz.-Eregli (Turkey) - After more than two decades, the Chief Executive Engineer of the Coal and Coke Handling Department of Eregli Iron and Steel Works, Inc., Privatdozent, Dr.-Ing. Hayri Ergun, has settled down for business with his own engineering office in Kdz.-Eregli. He is certified and sworn Engineer and Member of Verein Deutscher Eisenhüttenleute (Germany) and the Chamber of Mining Engineers (Turkey) and is an expert of coal carbonisation and coal and coke handling . Metallurgical and Formed Coke Production with and without conventional coke ovens, also with coals with lower coking properties, and high-capacity coal and coke handling plants and coke ovens are the basis of his know-how in this field. For further information please consult https://who.bulk-online.com/profile/...yri-ergun.html

The following services are offered in particular:

• Consulting, advice, examination and recommendation with regard to dimensioning and designing of Industrial Plant Engineering, Coke Making Technology, Bulk Materials Handling and Processing

• Risk Survey Reports and Judgement and Evaluation of Damage,

• Special Investigation and Concluding Facts,

• Representation, and Presentation of know-how,

• Process optimization and drawing conclusions from available results and facts,

• Concepts and expert opinions with regard to newconstruction and reconstructions,

• Arbitrator by order of the contract parties.

• Individual plant and personal optimization for every customer and/or project monitoring,

• Technical evaluation on patents regarding this kind of machinery, equipment and procedure.

• Evaluations and judgements of Process, Plant, Equipment and Technology

Certification and swearing-in guarantees impartiality and independence as well as compliance with the duties of a publicly certified and sworn Engineer.

For more details please contact:

Dr. H. Ergun

Privatdozent

Independent Consulting Engineer

Erdemir Cad., 62/2

Kdz.-Eregli/Türkei

Tel.: ++90 372 323 15 67

++90 372 322 76 22

GSM: ++90 532 507 95 93

E-Mail: hergun@mail.koc.net ■

Dear sir

For designing coal handling system following information is required

1.0 How the coal is received in power plant by trucks or rail wagons

This is required for selection of unloading facility

2.0 what is total coal requirement per day

This is required to decide coal plant capacity

3.0 what size of coal you are receiving

4.0 what size of coal is required by boiler

These are required to size your crusheing and screening plant

5.0 How much coal storage you need

storage capacity depends upon how regularly you are receiving coal

in addition to above your plant layout and space availablity plamajor role for designing coal handling system

Undersigned have designed more than 35 coal hanling system for power plants using stackers, reclimers, combined stacker/reclimers, movmovable wing trippers, shulle conveyor and plow feeder system, belt conveyor with telescopic chute etc system can be designed as per plant requirement

A R SINGH ■