This invention relates to clinker cooling and more particularly to the rapid air quenching of Portland cement clinker. It has especially to do with the cooling of cement clinker containing a proportion of magnesium oxide at a rate sufficiently rapid to cause at least a substantial proportion of the liquid phase to solidify without crystallization, as an under-cooled liquid or "glass" in …
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A clinker cooling equipment comprising a grate type clinker cooler connected to a rotary kiln where clinker is calcined, said clinker cooler being sectioned into a high temperature section on the inlet side and a low temperature section on the outlet side, said high temperature section being cooled by high pressure cooling air and said low temperature section being cooled by …
Cooling Process. In the clinker production of dry process, the calcined clinker is quenched in a grated cooler or a rotary cooler after being discharged from the kiln. Because there are two processes of liquid phase condensation and mineral intersection in the clinker cooling process, the cooling process will have a certain degree of impact on ...
Clinker cooling is necessary because. 1. Hot clinker is difficult to convey. 2. Hot clinker has a negative effect on the grinding process. 3. Reclaimed heat content of the hot clinker is an important factor in lowering the production cost. …
• During clinker cooling no thermal equilibrium is reached, which is the prerequisite of such a normative phase calculation • Neither the absolute values of Bogue can be right, nor relative changes can be monitored correctly, in particular if secondary fuels
The grate cooler is a type of quench cooler. After the cement clinker enters the cooling machine from the rotary kiln, a layer of a certain thickness is laid on the grate plate, and the blasted cold air is passed through the layer moving in the direction …
The cooling zone in the kiln is actually quite short but it is in this zone that nodulisation of the melt occurs. The red hot clinker is then discharged into the cooler, where it is quenched cooled to around 100 degrees centigrade. The heat dissipated by the clinker is used as secondary air for the combustion in the calciner.
(22) 29.11.2019 (43) 02.06.2021 (57) Clinker cooling with a cooling grate having a receiving section followed by a second section, heat recuperation from the clinker can be enhanced, if at least one...
re Clinker cooling rate vs Cement Performance. Hello Norew, Faster cooling of clinker has the following effects;-1. Smaller C3A crystals resulting in a more reactive and easier to grind clinker, producing faster cement setting times, improved …
Efficency Clinker Cooling Stephan Oehme – Claudius Peters Director Sales and Technology . Why a New Clinker Cooler? "Fuel for my kiln is getting more and more expensive, I need more efficiency" "I do not want to stop one or two times a year, because my cooler fails"
Following capacity increases, cooling with air alone is often no longer sufficient to achieve the proper operating conditions of the downstream filter. Injecting water into the clinker cooler provides a remedy here. The cooling of the gas also causes the gas volume to reduce and protects downstream plant components from excessive gas temperatures.
The Clinker Cooling Process. Grate coolers are commonly used to cool clinker. To hurry up the process, cool air blows against the clinker flow into the material layer. The cool air is from the lower portion of the bed to bring the temperature of the …
Clinker cooling. A very important process during cement production is the cooling of the clinker, since to a large extent the quality and characteristics of the cement depend on this phase. The hot clinker produced in the rotary kiln is transferred to a cooler, where it is cooled by air blowers before being conveyed to the cement mill.
ZKG International, October 2011 Cooling takes place in the clinker bed. The grate cooler has to provide for a favourable air flow and clinker handling.This perception alone is not sufficient for the conquest of the market. It is essential to offer something new. The development of clinker cooling technology is descibed in this article.
Clinker cooling // PRODUCTS ZKG 10 2011 quadruple the velocity of the air jets leaving the grate and entering the clinker bed. For a uniformly aerated bed and not taking into account the thermal expansion of the air an air velocity within the voids of the bulk clinker of 1.5 to 2 m/s could be expected. Entering air
Clinker cooling is the final step in clinker production. This process aims to recycle heat, preheat the secondary air, and improve the quality and grindability of the …
Results showed that with clinker and cooling air flow rates of 0.2 kg/s and 0.54 kg/s respectively and with a clinker bed height of 0.6 m. An optimum cooler performance was achieved with clinker ...
Optimal thicknesses of the clinker layer are selected from the Pareto front based on minimum energy consumption of cooling fans. Optimal thicknesses of the three plates measure 0.75m, 0.5m, and 0 ...
Cooling takes place in the clinker bed. The grate cooler has to provide just for a favourable air flow and clinker handling (Fig. 1). This perception alone is not sufficient to obtain orders resulting in a good reference and for the conquest …
Clinker cooling. Descriptions of the formation of cement clinker generally concentrate on those reactions that take place as the kiln feed heats up and passes through the process to the burning zone. The part of the operation after the burning zone and up until the clinker's eventual delivery to the cement mill can also have a significant ...
Excellence. KHD is a customer-focused engineering, equipment supplier, and service company, providing a full-line of competitive and environmentally friendly technologies to the cement industry.KHD, founded …
In the calcination process of cement clinker, preheating, calcining, and cooling are three inseparable process links. As the supporting equipment of cement rotary kiln, clinker cooler (also called cement cooler) is a kind of heat exchange device that transfers heat from high-temperature clinker to low-temperature gas.It plays an important role in the cement clinker production …
KHD Humboldt Wedag is your partner in cooling technology. Since the commissioning of the first KHD clinker cooler in 1936, we have dedicated ourselves to developing products and servi-ces that exceed the needs of our customers. For conveying and cooling hot clinker, the PYROFLOOR2® utilizes proven and reliable technologies.
Clinker cooling is the final step in clinker production. This process aims to recycle heat, preheat the secondary air, and improve the quality and grindability of the clinker. Besides, the rapid cooling of the clinker in this process is convenient for …
Clinker Cooling. Is the process where the hot clinnker coming out of the oven is cooled. The process needs to be optimized for cooling efficiency and heat recovery. Share Clinker CoolingTechnologies & Measures . Technology or Measure Energy Savings Potential
Controlled clinker cooling is very important for clinker quality and for the energy efficiency of the overall production process, since it allows heat recovery. It is essential, that the hot clinker is cooled down quickly to below 1200-1250 oC, as fast cooling causes the re-crystallisation of the finely grained aluminate phase, which results in ...