Presentation on theme: "5 critical areas in Cement plants"— Presentation transcript:
1 5 critical areas in Cement plants Small, but vital for the process:Burner pipeNose ringBull NoseT.A. Duct damperCoating in smoke chamber5 critical areas in Cement plants
2 5 critical areas in Cement plants The burner pipe is consuming very little refractory, but a failure can stop the entire process for many hours.The use of alternative fuels and high sulphur coal, have challenged the quality of refractories, but also the installation and quality of anchors.Clinker and sometimes big pieces of coating can fall on top of the burner.Heavy stream of clinker dust from the secondary air is coursing heavy wear on the bottom of the burner.Too often we see the burner pipe in this mood.
11 5 critical areas in Cement plants The nose ring casting is protecting the tip of the kiln. SS castings are protectingthe kiln shell. On top of these and sometimes on front, LCC is installed.Clinker is sliding on the nose ring castable, which challenge the wear resistance.Ovality of the kiln end course stress at the castable, if prober expansion is not taken care of.Cooling air for the SS castings is coursing temperature difference in the LCC. Thermal shock resistance of the LCC is required.
12 5 critical areas in Cement plants Castable failure at the Nose Ring
18 5 critical areas in Cement plants T.A. duct damperThe damper control the tertiary air to the calciner. Normally it consists of a steel plate covered by refractory material to withstand the wear from high velocity dust.Very often the castable is worn out in a few months and the steel plateWill start to burn and buckle. By this, the tertiary air cannot be adjusted.A choice of highly wear resistant LCC combined with allowance for the thermal expansion of the steel plate can extend the life.
20 T.A. duct damper5 critical areas in Cement plants
21 T.A. duct damper5 critical areas in Cement plants
22 5 critical areas in Cement plants T.A, duct damper
23 5 critical areas in Cement plants T.A. duct damper
24 5 critical areas in Cement plants T.A. duct damper
25 5 critical areas in Cement plants Coating formation in smoke chamber and riser duct.Coating forms by the process, we cannot avoid that.Today's use of all kind of alternative fuels have increased the aggressive chemicalattack on most refractory materials in the market.But by use of low porosity refractory, with a raw material composition whichdo not allow the coating to stick to the lining, we can reduce or eliminate theproduction loss.Coating will form but slide off by its own gravity or by help from external force,air blasters or poking.
26 5 critical areas in Cement plants Coating formation in smoke chamber and riser ductHASLE LCCOther supplier
29 5 critical areas in cement plant The mentioned areas are some of those we normally focus on.A combination of superior qualities and close teamwork with agent and the end-user, we are able to further increase the refractory life.
30 5 critical areas in cement plant agentagentagentagent