effect of cooling air on clinker temperature

CLINKER COOLING TECHNOLOGY - Mechanical engineering ...

The hot clinker discharged from the kiln at a temperature of about 1300 C is further treated in clinker cooler. The cooling of clinker influences its structure, main composition, grindability and consequently, the quality of the resulting cement.

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(PDF) The effects of grate clinker cooler on specific ...

Figure 8 The effect of temperature of the cooling air to ... showed that about 38% and 30% of energy cost can be saved by changing mass flow rate of clinker and mass flow rate of cooling air ...

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Clinker cooling - International Cement Review

Clinker cooling. By Arthur Harrisson. Published 16 March 2015. ... after the burning zone and up until the clinker’s eventual delivery to the cement mill can also have a significant effect on the quality of cement produced. ... including the secondary air temperature and the closeness of the burning zone to the outlet. As the temperature ...

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(PDF) Energy and Exergy Analysis of Clinker Cooler in the ...

air temperature, 4% in the heat exchange between th e par ticles of clinker and coolin g air, 4.2% in the clinker exergy and 4.1% in the cooling ai r exergy. With every 5% decrease of grate speed ...

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Experimental research on cement grate cooler system and ...

Nov 25, 2020  The actual cooling air in the clinker layer is lower than the measuring data, which leads to the decline of cooling effects and then the increment of outlet temperature of cement clinker. Download : Download high-res image (225KB)

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US2375487A - Clinker cooling - Google Patents

The air entering the final cooling compartment l 24, which is also heated in passing through the ,clinker on the rear or discharge end portion of the grate 2, but to a lesser ldegree than the air entering the precooling chamber 23 since the temperature of the clinker has been reduced in passing through the precooling compartment 23, passes into ...

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Clinker cooling rate vs Cement Performance - Page 1 of 2

Jan 10, 2012  re Clinker cooling rate vs Cement Performance. Ted has given the actual details, Effect of different things on slow and fast cooling is given below, slow cooling means 4 to 5 degree per minute and fast cooling is 18 to 20 degree per minute.

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(PDF) The effects of grate clinker cooler on specific ...

Figure 8 The effect of temperature of the cooling air to ... showed that about 38% and 30% of energy cost can be saved by changing mass flow rate of clinker and mass flow rate of cooling air ...

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Clinker cooling - International Cement Review

Clinker cooling. By Arthur Harrisson. Published 16 March 2015. ... after the burning zone and up until the clinker’s eventual delivery to the cement mill can also have a significant effect on the quality of cement produced. ... including the secondary air temperature and the closeness of the burning zone to the outlet. As the temperature ...

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Experimental research on cement grate cooler system and ...

Nov 25, 2020  The actual cooling air in the clinker layer is lower than the measuring data, which leads to the decline of cooling effects and then the increment of outlet temperature of cement clinker. Download : Download high-res image (225KB)

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The Potential of Cooling Effect Using Palm Oil Clinker as ...

The cooling effect in green roofs using palm oil clinker as drainage layer was also investigated. The analysis of heat gains were conducted in order to evaluate the cooling effect of the green roof using CLTD/CLF/SCL method. The use of palm oil clinker as drainage layer in green roofs system could possibly reduce the waste material produced by

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US2375487A - Clinker cooling - Google Patents

The air entering the final cooling compartment l 24, which is also heated in passing through the ,clinker on the rear or discharge end portion of the grate 2, but to a lesser ldegree than the air entering the precooling chamber 23 since the temperature of the clinker has been reduced in passing through the precooling compartment 23, passes into ...

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HEAT EXCHANGE MODELING OF A GRATE CLINKER COOLER

The clinker going out of the rotary kiln at a temperature of 1380°C is cooled by the air at a temperature of 65°C (Fig.1) by a cross-flow heat exchange with the top of the highly refractory steel grate. Thanks to an oscillatory movement, the grates cause the advancement and the spreading out of the

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Article: The effects of grate clinker cooler on specific ...

The effects of mass flow rate and temperature of cooling air on the performance of the GCC and RK are investigated. It is found that the first- and second-law efficiencies of the RK can be increased by 2.62 and 2.13%, respectively, by increasing the mass flow rate of cooling air by 13% in GCC.

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Cement Kilns: Clinker Thermochemistry

The rawmix enters a kiln system at a temperature close to ambient, and the temperature rises as it passes through the kiln system until it reaches a peak temperature in the sintering zone, after which the chemical state of the clinker is frozen by rapid cooling. During the process of temperature rise, chemical reactions take place in sequence.

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PERFORMANCE EVALUATION OF A GRATE COOLER IN A

subsequent calculation was based on the principle of input (clinker, cooling air, fuel, water injection) and output (clinker temperature, secondary and tertiary Air, excess air and cooler radiation) of clinker from the grate cooler. 3.1.1 Cooler Input The cooler clinker input is considered as 1 kg which is taken as the basis for the mass.

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TEMPERATURE AND EFFECTS IN QUENCHING

Bash6reportedheatingandair-coolingcurvestakenatdifferent points in a24-inch ingot, while Knightand Hansen 7 studiedthe cooling at apoint2inches from theedge of an 8-inchround,14-foot

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How Does Clinker Cooler Reduce Cement Production Energy ...

The main power consumption of a clinker cooler is its cooling fans. It usually takes 1.9-2.3 m 3 under standard conditions to cool 1 kg clinker from 1400 ℃ to 65 ℃, and the power consumption of the whole system is about 7 kWh. If the air consumption per kilogram of clinker cooling is reduced from 2 m 3 to 1.7 m 3, the air consumption efficiency will be 15% lower than that of other cement ...

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Process - Ball Mill Heating and Cooling - Clinker Cement ...

If air contains a specified mass of water, expressed in lbs. of water per pound of dry air (or kg/kg air), and the temperature of the gas/water mixture drops below the dew point or saturation temperature for that water concentration in air, then the water vapor will begin to condense from the air.

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Clinker Cooler

A cooling curve is an exponential graph that represents the cooling progress in a clinker cooler with respect to distance and cooling air volume. The independent variable (X-axis) is cooling air (or distance) and the dependent variable (Y-axis) is temperature. Below is an example of a cooling curve for temperature vs distance from feed end.

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Assessment of energy and exergy efficiencies of a grate ...

cooling system through the optimization of its operational parameters such as masses of cooling air and clinker, cooling air temperature, and grate speed. It has been found that the energy and recovery energy efficiencies of a cooling system can be increased by 1.1% and 1.9%, respectively, with every 5% mass increases of cooling air.

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Clinker Cooler

A cooling curve is an exponential graph that represents the cooling progress in a clinker cooler with respect to distance and cooling air volume. The independent variable (X-axis) is cooling air (or distance) and the dependent variable (Y-axis) is temperature. Below is an example of a cooling curve for temperature vs distance from feed end.

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Process - Ball Mill Heating and Cooling - Clinker Cement ...

If air contains a specified mass of water, expressed in lbs. of water per pound of dry air (or kg/kg air), and the temperature of the gas/water mixture drops below the dew point or saturation temperature for that water concentration in air, then the water vapor will begin to condense from the air.

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Assessment of energy and exergy efficiencies of a grate ...

cooling system through the optimization of its operational parameters such as masses of cooling air and clinker, cooling air temperature, and grate speed. It has been found that the energy and recovery energy efficiencies of a cooling system can be increased by 1.1% and 1.9%, respectively, with every 5% mass increases of cooling air.

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PERFORMANCE EVALUATION OF A GRATE COOLER IN A

subsequent calculation was based on the principle of input (clinker, cooling air, fuel, water injection) and output (clinker temperature, secondary and tertiary Air, excess air and cooler radiation) of clinker from the grate cooler. 3.1.1 Cooler Input The cooler clinker input is considered as 1 kg which is taken as the basis for the mass.

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Article: The effects of grate clinker cooler on specific ...

The effects of mass flow rate and temperature of cooling air on the performance of the GCC and RK are investigated. It is found that the first- and second-law efficiencies of the RK can be increased by 2.62 and 2.13%, respectively, by increasing the mass flow rate of cooling air by 13% in GCC.

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Cement Kilns: Clinker Thermochemistry

The rawmix enters a kiln system at a temperature close to ambient, and the temperature rises as it passes through the kiln system until it reaches a peak temperature in the sintering zone, after which the chemical state of the clinker is frozen by rapid cooling. During the process of temperature rise, chemical reactions take place in sequence.

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Cement Clinker Quality Control During Clinker Production ...

6. Cooling Process. In the clinker production of dry process, the calcined clinker is quenched in the grated 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 the clinker ...

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(PDF) Assessment of energy and exergy efficiencies of a ...

A grate clinker system is used in cement production and clinker burning system consists of a clinker cooler, the rotary kiln, and the suspension pre-heater [6]. A clinker cooler reduce the temperature of the clinker, and grind and recover energy from the sensible heat of the hot clinker by heating the cooled air.

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Some measures to improve the grindability of clinker in a ...

Feb 05, 2021  In this way, the secondary air temperature is ensured, the normal calcination of the kiln is promoted and the grindability of the clinker is improved while the quenching effect of the clinker is improved. (3) The air pressure outside the coal injection pipe of the two production lines of the branch company is normally controlled at about 78kPa.

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TEMPERATURE AND EFFECTS IN QUENCHING

Bash6reportedheatingandair-coolingcurvestakenatdifferent points in a24-inch ingot, while Knightand Hansen 7 studiedthe cooling at apoint2inches from theedge of an 8-inchround,14-foot

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Cement Kilns: Rotary Coolers

Clinker cascades through the stream of cold air being drawn in by the kiln overhead. Because the cooler "lifters" are fairly worn, the hot clinker can be seen falling into the cooler at the far end. Water is being squirted in, to aid the cooling action, at the expense of cooling and diluting the secondary air.

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CUSTOMISED CLINKER COOLING - Claudius Peters

temperature is achieved. The intensive cooling of the clinker is realised by a long retention time inside the cooler. At maximum stroke numbers of 4 min-1 the ETA cooler can be operated with clinker bed heights of up to 1300 mm. This effects the degree of recuperation, which is incomparably high with 75.5% at low recuperation air quantities.

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Effects of Heat and Airflow Inside an Enclosure

2. Auxiliary designs for cooling and air flow a. Use of side and top vents to move cool air in and hot air out b. Use of instrument air and vortex coolers (a filter system may be needed on the input line to ensure clean and dry air) i. Allows positive pressure inside the enclosure ii. Allows small amounts of air to improve airflow beyond ...

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Effects of Air Flow and Heating on Temperature: Experiment

Firstly, the temperature should be adjusted from low temperature reading to high temperature reading so that the remained heat won’t affect the next coming set. Next, this experiment should be conducted in a closed room and located far away from heating or cooling system so that the temperature

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