Dear Friend,If you have limited space then better to go for vertical calciner/kettle. there are good kettles avilable in the market.

Anil Seth

Libran Engineering & Services, India

www.libranengineering.com ■

Dear Sirs,

Are you looking for space utilisation or are you producing access raw meal so that you are present kiln does not have capacity.

regards,

hemant ■

ofcourse vertical kiln is the best option, however it will be limiting factor for capacity. Taking into consideration the volumetric loading per meter of kiln to have desired diameter, the kiln length can be shortened by increasing the pre-heater capacity, twin calciner string, as well as utilizing the space between first floor level and the ground floor of pre-heater to accommodate kiln.

The kiln inclination will decide the retention time required to achieve the quality of clinker.

best regards,

hemant roge ■

What is the end product from the kiln? Is it calcined lime for further use as a raw material for making Calcium Carbide?

In that case both rotary kiln or vertical kiln options are open.

Also inform what fuel is to be used? ■

Dear Sir

We are supplier spare parts for Vietnam’s Factory (Cement Factory,) and market in Viet Nam. We have a project in cement factory about Kiln elip.

Would you advise.

Thanks,

Hoang Hiep

TanDuc Jsc

Ad.:6C Phan Ke Binh St., District 1, HoChiMinh City, Viet Nam

Tel.: (84).8.9103814 Fax: (84).8.9103815

Web. www.tanducco.com.vn

Email: hiep.industry@gmail.com ■

Hi,

We use reducing kilns for processing mineral sands. The length of the kiln is not an engineering issue. It has to do with the requirements of the chemical reaction, or "reduction process" within the firebox.

To improve the chemical processing capacity of our kilns, which are some 50 m long, we would have to extend the barrel of the kiln by another 20 m or so. An alternative is to use "new generation" chemical processing equipment. No one knows quite what that is, or how it will work when transferred from the R & D Labs and pilot plants. So we don't yet have the confidence to invest in new-gen kilns just yet.

Far too many engineering decisions, with serious CAPEX implications, are made by people who are managers. When I was working in the industry I was told that my job was to manage - don't get bogged down with the technical stuff. We can always buy that out.

But I have been on both sides of the fence. I have also worked for the Vendors. And I have a fair feel for how much huff and puff there is in this business. The equipment suppliers, in a competitive environment, are not averse to a little bluffing, and crossing of the fingers to win a contract. And that's where your commissioning and debugging problems arise. Often we have to take a gamble - make a decision knowing full well that, at the time, we only have half the facts.

A wise civil engineer once told me that predictions after the event are always more accurate than those made before the event.

Regards - Sgt John.Rz

www.latviantourists.com.au ■

Thanks for the insight into engineering as she is practised in Perth. ■