Annular cooler sintering material cooling method and cooling device
A technology of a cooling device and a cooling method, applied in the field of iron and steel metallurgy, can solve the problems of weakening cooling effect of cooling air and high energy consumption of ring coolers.
Active Publication Date: 2021-01-05
QINGHUANGDAO NORTH METAL HOSE
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Problems solved by technology
The problem with this traditional method is that the temperature of the sintered ore after it comes out of the sintering machine is very high, and the heat radiation to the surrounding temperature is serious, causing the cooling air of the ring cooler to be affected by the thermal radiation of the sintered ore before it comes into contact with the sintered ore. , reaching a very high temperature, after the real contact with sinter, the cooling effect of the cooling air is greatly weakened; in order to achieve the cooling effect, the cooling air volume must be increased, resulting in high energy consumption of the ring cooler
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[0016] The invention introduces the dry fog cooling technology into the ring cooler, combines the dry fog cooling with the original ring cooler blower, and realizes energy saving and consumption reduction on the basis of ensuring the quality of the sintered ore. The dry mist cooling technology of the ring cooler is to set an atomizing nozzle in the bellows of the ring cooler. Carry the micron dry mist through the sinter layer on the ring cooler to achieve the purpose of cooling. The water and gas entering the dry mist nozzle are first heated to about 100°C by the high temperature flue gas of the ring cooler, so that the micron-level dry mist sprayed by the atomizing nozzle is saturated water, and the micron-level dry mist in the saturated water state is affected by the sinter. The heat radiation of the sinter quickly turns into saturated steam. Since the temperature of the sinter is much higher than the temperature of the saturated steam, the saturated steam will continue to a...
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The invention discloses an annular cooler sintering material cooling method. The method adopts the combination of air blower cooling and dry fog cooling, that is, heated gas and saturated water are sprayed out of micron-sized dry fog by utilizing an atomizing spray head mounted at an air bellow at the lower part of an annular cooler trolley, the micron-sized dry fog absorbs heat under the thermalradiation effect of sinter and quickly becomes saturated steam, and then the saturated steam continuously absorbs the heat of the sinter to change into superheated steam; and on one hand, cooling airblown out by the air blower cools sinter on the trolley, and on the other hand, the cooling air serves as a carrier of dry fog and carries micron-sized dry fog to pass through a sinter layer on the annular cooler to cool the sinter. According to the method, after a dry fog cooling device is introduced, the energy consumption of a fan can be reduced by more than 25% on the basis of ensuring the cooling effect and quality of the sinter, and the purposes of saving energy, reducing emission and improving the quality of the sinter are achieved.
Description
technical field [0001] The invention relates to a cooling method and a cooling device for sintered material of an annular cooler, and belongs to the technical field of iron and steel metallurgy. Background technique [0002] The cooling of sintered ore in sintering production is an important part of the sintering process, and the ring cooler is a kind of equipment used to cool the sintered hot ore in the sintering machine. The ring cooler is circular as a whole, and the high-temperature sinter runs through the trolley for one week. During the operation, the cold air blown by the blower passes through the grate plate of the trolley from bottom to top to cool the sinter, and the trolley runs. Discharge of sinter to the end point cooling. Conventionally, the cooling of sinter ore has been carried out by the use of cold air blown by a blower. The problem with this traditional method is that the temperature of the sintered ore after it comes out of the sintering machine is very...
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IPC IPC(8): F27D15/02
CPCF27D15/02
Inventor 吴树春刘国明李秀玲田赛王绘田志强陆斌赵晋婷李博文高健徐艳婷李旭平赵铁志王庆文
Owner QINGHUANGDAO NORTH METAL HOSE