ETA Cooler Grate Cooler Cooler Efficiency @ 0,85 Nm³/kg recuperation air 77,8 % 73,9 % Wear Grate plates 100 % in clinkerProtection Autogenous protection Due to pebble layer Heat Protection Safe due to higher clinker bed and pebble lane filling Direct contact between hot clinker and grate plate Stroke Length
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the grate cooler was a serious limitation of the simulation research that has been conducted on the process. The cooler . 6 is known ( by the operating personnel) to have a definite effect on the operation of the rotary kiln, but until now, no analysis of this effect has been presented. The analysis of this problem was begun by derivation of a set of mathematical equations to
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Abstract and Figures The concept of the exergy analysis is applied to a grate cooler of a cement production facility. The cooling of the clinker is modelled by a gas-solid series of cross-current
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The COOLAX high efficiency grate cooler the grate plates through a system of ducts After the CFG zone comes the after-cooling has greatly improved heat
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coming out of rotary kilns. Heat transfer in coolers indirectly controls the performance of the rotary kiln and is therefore crucial in a cement industry. In this report, we present a computational model to capture heat transfer in grate coolers. The schematic of grate cooler considered in the present study is shown in Figure 2.
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Replacing worn grates or carrying out gap management on grate type coolers are time-consuming exercises and an on-going expense. In the Cross-Bar® cooler, clinker is moved through the cooler using horizontal bars that operate in a shuttle motion across a number of lanes. This effectively conveys, mixes and shears the
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be the number one choice for clinker cooling technology. The initial development of the IKN Pendulum Cooler® started more than 30 years.
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The essential characteristic of a grate cooler is a layer of clinker spread on a more-or-less horizontal perforated grate, through which cold air is blown. The grate is made of steel, and the cold air keeps it sufficiently cool to avoid melting or burning.
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constraint relationships in the grate cooler are given. Finally, the power flow model and multi-objective genetic algorithm (MOGA) are applied to optimize the operating parameters of the grate cooler. 2. Power Flow Models for Heat Exchangers and Grate Cooler 2.1 The thermal resistance model based on inlet temperature difference for heat exchanger
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cooler grates MAGOTTEAUXhas developed new alloys and designs that offer great benefits to conventional coolers, by enhancing both product performance and lifetime. Wear and thus performance of the cooler grate plates depend to a large extent on their location in the cooler.
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The grate cooler belongs to the family of air quench cooler (AQC). The clinker fed into the grate cooler can be quenched from 1300-1400 ℃ to below 100 ℃ in just a few minutes. The grate cooler can be further divided into three types: the rotary grate cooler, the traveling grate cooler, and the reciprocating grate cooler.
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heat recovery rate in conventional grate coolers are approximately 50 to 60 %, When high temperature clinker is dropped on the grate of cooler from the
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The grate of this grate cooler comprises a plurality of stationary and movable grate plate carrier beams on which a plurality of grate plates provided with cooling air bores are secured. The
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The Grate, the Kiln and the Cooler. The object of the process is to transform the pelletized concentrate into hardened pellets that can be used as blast furnace feed or direct reduction furnace feed. The Travelling Grate is where pellets are dried and then heated up to a temperature of about 800-900 deg C. The heat used to dry and preheat the pellets is typically hot air pulled
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Grate cooler of CHAENG is new energysaving clinker cooling equipment, which adopts international advanced flowcontrol technology, makes continuous optimization and development relying on advanced thermal technology. Its output can be improved by 20% compared with traditional grate cooler. Heat consumption can be saved more than 10%.
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A grate cooler can be regarded as a simple heat exchanger through which the clinker passes across or counter to the cooling air flow and a direct heat transfer takes place between the hot clinker and the cold cooling air. The desired maximum recuperation of the heat from the clinker cooler for use in the
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The invention relates to a reciprocating grate cooler in which the drive arrangement is enclosed by a drive housing, the interior of which is closed off so as to be airtight against the atmosphere, but by contrast has a pressure equalization connection to the interior of the cooler housing. Such a reciprocating grate cooler is distinguished by a substantially reduced expenditure for the
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Keywords: self-tuning fuzzy PID, Kalman filter, grate cooler. 1. Introduction. Clinker cooling process is the key process in cement production which cool
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The grate cooler is the main equipment for clinker cooling and heat recovery in the sintering process of cement clinker, and maintaining the grate cooler.
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The grate is driven by cylinders placed on either side of the cooler. The hydraulic drives consist of axial piston pumps with electro hydraulic servo adjustment of the oil flow to the cylinders which have built in linear transducers. The system is controlled by a PLC .The pump units have built flow and its direction.
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3.1 Grate Cooler. 23. 3.2. Cooler recuperation efficiency. 23. 4. RAW MEAL & FUELS. 4.1 Solid fuel heat value. 24. 4.2 GCV & NCV of various fuels.
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