CemNet.com: Environmental Cement Industry News

how much air is required for a M 200 F K pump handling ESP dust of Raw Mix to convey it to preheater top (transport height horizontal 40m & vertical 75 m)?

How can I calculate the current TPH being conveyed by F K Pump by the load of pump screw & compressor load?

what is the normal air requirement for such kind of pumps

raj

Dear all:

pls relay i want know about cyclones seperation efficency? and cyclones eeficiency how we can calculate it?

Theory of the clinker nodulization (according to FLS training), indicate that the reasons for fine clinker and subsequent dusty conditions center around the  length of the liquid zone of the  kiln.

A small liquid zone results in fine clinker and is typically characterized by very fast C3S reactions.;

1. Hight Burning Zone temperatures

2. Very High Liquid phase

3 Low SR

4. Low AR

5, High LSF

This I understand, however, from time to time kilns produce very large clinker. I also overhear from local technocrats  that this is as a result of a very hot kiln. Now, a hot kiln should produce fine clinker, not coarse clinker?

What are your thoughts? 

I am operating a wet kiln that is experiencing frequent refractory failures. Burner alignment is very important to an extensive refractory campaingn.

I position the burner pipe centrally, not leaned into any quadrant, and the insertion depth is just in line with the nose ring (approx 200mm)

 Is this the industry standard for geometric alignment of the main burner for kiln operation? 

dear all

pls i want know what the relation between kiln main drive torque and power?

to all

we have one kiln with preheater 6 stage ,2000 TPD ,56m length,3.8m diam, grate cooler.kiln suffering from the flow of  materials in the preheater that will happen suddenly any 20 mints and is noticeable when the cyclones out let draft changed. that a phenomenon lead to kiln cool after 5 mints only.my question how to solve this problem?notice that the kiln feed analyeses are:

LSF=92-95

SM=2.2-2.4

AM=1.5-1.6

AND NO ALKALIES

Dear Dr Michale Clark

we have grate cooler with 8 fans for kiln capacity 2000TPD .we fucing the temp of clinker more than design value(200 degree)and we run the fans with full capacities ,what the solution?

Dear All,

Pl.let me know if any one has carried out plant scale study on clinker litreweight vs free lime for different clinker size fraction to arrive at appropriate clinker sieve for litreweight determination.If yes,then study report may pl. be forwarded on my e-mail ID bhaskar.agate@gmail.com

Awaiting quick responce.

Regards

Bhaskar Agate

Dear Experts,

The chemical analysis of clinker by XRF is showning 5.0 % C3A, where as the same sample analysed by XRD shows C3A cub: 1.5 % & C3A orho: 2.10%. why is the difference so. Also our initial setting time of cement is very higy (350 mts). To control initial setting time Alumina content increased by 0.50 % in clinker, even then there is no chnage in initial setting time and C3A phase in the XRD.

Your suggesions are invited for increasing the C3A phase in XRD and also controlling the initial setting time or any other suggesions to control initial setting time are highly appreciated.

I need to know why bypass ratio decrease when the oxygen in the kiln inlet increases and vise verse.

Dear all,

Can any body tell me the details regarding Kiln firing with Natural gas and Properties.

with best regards

Komar

Dear Dr Michale Clark

Please let me know the formula for calculating raw meal to clinker ratio . Because it varies from plant to plant.

Dear Experts

did any body have know how the virtual silo raw mix control system work 

Dear all,

I have seen one web Site regarding Cement Placements  and may be it was use full for all.

                     www.cementplacements.com

 With regards

Dear All

What percentage of the expected recovery of energy and draft back if I replacement  The air lift by bucket elevator ??

Regards

ILA

Kiln shell cooling is used to promote a thicker more stable coating in the burning zone.

Though we have some installed, I have seen very little guidelines in the selection of an appropriate shell cooling system. I am currently using axial van fans.

Also, there is some discussion with respect to which side of the kiln to place the shell cooling fans. I have shell cooling fans directed to the side of the kiln charge, however one consultant is telling me that there are better benefits by putting the shell cooing fan on the other side.

What is the industry standard?

Dear Sir,

 i would like to know possible changes  would take place in kiln and calciner system when fuel is changed from coal to gas firing.

why specific heat consumption is increased for gas firing.

kindly elaborate in details.

thanks

sp

hello every one 

what is basic difference in Mortar and castable

can we use castable with sodium silicate for good results (for good strenght as a binder  or as supportive element).

Why the driving unit of the ball mill is located at the discharge side and not at the feed end. what happens if it is located at the feed end

Heloo every one

What is the suitable strenght of castable to be used for burner gun and Nose ring..

which type of anchor is best for above   

Dear All ,

 Just I want to know , what is the typical steps of making raw mix study in a certain cement plant because the way of making the raw mix study vary from company to anther based on the philosophy