Are you looking for sampling at a cement plant or are you a user, i.e. ready mix operation?

In either case we can probably help.

Ebe Neumann

USA xx314 878 0123 ■

Gentlemen

The ususal way to make complete sampling in a cement plant is to place several sampling devices along the production line:

1. Before the raw material storage. (scoop sampler+ crusher+ 2 stage dividing)

2. In the raw meal line after the crusher (screw sampler+ mixer)

3. After the clinker cooler (special scoop sampler for hot material+crusher+divider)

Especially no 1 is important to ensure the quality of the raw material, before going into the production. ■

We offer a range of proven sampling devices for powders of all types.

These can be automatic or manually operated.

Types of sampler avaialbe are:

'Plug' type, fixed volume,

'Screw' type using a small auger, which runs for a selected time.

'Vacuum' type, which is essentailly a small vacuum chamber which 'sucks' the sample into it. Suction is for a preselected time to give the required volume or Level sensors can also be fitted and the vacuum chamber filled to a known volume.

'In line' samplers are also available.

We have a range of 'diverters' which can deposit the sample into several different collection containers if requirted.

We have systems collecting both composite and individual 'grab' samples through out batches or production runs.

Simple through to sophistictaedd sampling control systems are available. Generallly the more sophisticated controls use a PLC with MMI interface. ■

In a cement plant, the process control samples are usually

raw materials prepation - cross belt analyser.

raw meal prep and kiln feed - screw type sampler - watch location plus ensure that internal vacuum of transport system does not effect sample

clinker - cross sampler at transfer points

finished cement - screw sampler after cooler.

Cheers

James ■

Dear Sirs,

one of our swiss customers asked us for assistance regarding representative sampling of cement from departing silo tanks on trucks and trains. The samples of chromate-reduced cement (according to the new european regulatory) often showed divergencies because of the improper distribution of the reducing agent and inhomogeinity of the cement. Aparently the method of sampling was not perfect.

Therefor we have developped a system, that enables the user to take a 8 Liter representative cross-sectional sample from a silo. With the new device the sampling is done quick and accurate.



Please don't hesitate to contact me at any time.

With kindest regards,

Felix Obermeyer

GMP Sampling ■

Sir,

we are manufacturing sampling system for cement, coal. We can provide the complete solution.

Rajesh Kumar

Merit Technologies India Ltd.

No. 152, Defence Colony, Ekkattuthangal,

Chennai -97, Tamilnadu

India

Phone: +91- 44 -22334099,22318697/98/99

Fax.: 044 - 42647382

E –Mail: rajesh@merittech.co.in

Web Site:www.meritbulkhandling.com ■

Dear Sir,

Iteca Company is a leading manufacturer of on line process control instruments specifically designed for the cement industry (raw material, ignition loss, free lime, gypsum/limestone addition, particle size), as well as completely automatic laboratories (sampling systems, cartridge sample transport, sample preparation and automation), with more than 30 years of experience in this field.

Most of these systems have already been installed and are being used by all the large cement producers all over the world.

Please take a look at our solutions : www.iteca.fr, you will see our technical solutions.

Feel free to contact us : info@iteca.fr ■

Are your sampling systems for cement designed to take a pair of interleaved primary samples during each production period? Or are all primary increments combined into a single primary sample? A pair of interleaved primary samples (A- and B-samples in ISO parlance) does give a single degree of freedom. Putting all primary increments in a single basket doesn't give a single degree of freedom. Statistical quality control and statistical grade control demand degrees of freedom. JanWMerks ■

Originally Posted by Jan W Merks

Are your sampling systems for cement designed to take a pair of interleaved primary samples during each production period? Or are all primary increments combined into a single primary sample? A pair of interleaved primary samples (A- and B-samples in ISO parlance) does give a single degree of freedom. Putting all primary increments in a single basket doesn't give a single degree of freedom. Statistical quality control and statistical grade control demand degrees of freedom. JanWMerks

Dear Jan,

This question is very important and shows that sampling is not a simple handling operation. International standards and sampling theories have to be taken into consideration.

Pierre GY (the world renowned sampling specialist) writes, “On primary sampling, bias can be up to 1,000% and up to 50% on the secondary sampling whereas they never exceed 0.1 to 1% in analysis.” The result of analysis depends on the quality of the sample. The more representative the sample is the more accurate and correct the analysis will be.

Iteca can offer both sampling solutions depending on the application.

Feel free to take a look at our article: “How to collect a representative sample”:

http://iteca.online.fr/Joomla/index....id=133&lang=en

Best Regards ■

Mr. Garcia,

WipWare photoanalysis technologies provide software and systems that can analyze virtually any size of material running on a conveyor belt. With systems currently operating in both the mining and aggregate industries, I am confident that WipWare will be able to help you find a solution to your particle sizing needs.

WipWare also provides a system that can analyze material being dumped into a primary crusher from dump trucks/scoop trams.

For further information on WipWare products and services, visit www.wipware.com.

Be sure to contact me if you have any questions.

Best regards,

Mark Wagner

Sales Representative

WipWare Inc.

Tel: 1-705-472-2664

Fax: 1-705-472-2645

Email: sales@wipware.com ■

Sir,

we are manufacturing sampling system for cement, coal under technical assistance from Eriez - Prisecter UK. We have manufacturing setup in Bangalore - India. We belong

Eriez group and for more details long on to www.eriez.com

pl. give us ur contact details.

with regds

Janakiram

Manager - Sales

e-mial: mktg@emil.co.in

Mobile: 09900206378

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