High-temperature dedusting ash cooling and conveying system
A technology of high temperature dust removal and conveying system, applied in the field of smelting, can solve the problems of high energy consumption and unenvironmental protection
Pending Publication Date: 2018-06-05
BEIJING SHOUGANG INT ENG TECH
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Problems solved by technology
[0005] The present invention solves the technical problems of high energy consumption and environmental protection in the prior art by providing a high-temperature dedusting ash cooling conveying system
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[0020] The embodiment of the present invention solves the technical problems of high energy consumption and non-environmental protection in the prior art by providing a cooling conveying system for high-temperature dedusting ash.
[0021] The technical solution in the embodiment of the present invention is to solve the above-mentioned problems, and the general idea is as follows:
[0022] The high-temperature dedusting ash is fluidized and cooled in the intermediate tank, the gas brought in by the conveying gas and dedusting ash is released through the dedusting equipment, and the dedusting ash after cooling enters the injection tank through the discharge valve. After the dedusting ash enters the blowing tank, the pressure line of the blowing tank will pressurize the blowing tank. Recycle in the pulverized coal bin. After the blowing is completed, the gas in the blowing tank is released by the dust removal equipment, thereby avoiding the operation of directly pumping water to...
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The invention discloses a high-temperature dedusting ash cooling and conveying system. A high-temperature dedusting ash is fluidized and cooled in a middle tank, a coal gas carried by conveying gas and the dedusting ash is diffused through a dedusting device, and the cooled dedusting ash enters an injection tank through a discharge valve. After the dedusting ash enters the injection tank, a pressurizing pipeline of the injection tank is used for pressurizing the injection tank, a fluidifying pipeline of the injection tank is used for fluidifying the bottom part of the injection tank, and an injection pipeline is used for injecting the dedusting ash and conveying the dedusting ash into a pulverized coal bunker for recycling. After the injection is finished, the gas in the injection tank isdiffused through the dedusting device, and the operation of directly fetching water for cooling the high-temperature dedusting ash is avoided, so that the technical problems of large energy consumption and environmental harm in the prior art are solved, and the effective and environment-friendly utilization of the dedusting ash is realized.
Description
technical field [0001] The invention relates to the technical field of smelting, in particular to a high-temperature dedusting ash cooling conveying system. Background technique [0002] High-temperature dedusting ash is more common in the smelting industry, but its high-temperature transportation is more complicated, and high-temperature valves need to be installed, or it can be cooled and transported by directly pumping water. [0003] At present, in the HIsmelt smelting reduction ironmaking process, the temperature of the high-temperature gas coming out of the gas outlet of the smelting reduction furnace is between 1480 and 1650 ° C, and the gas volume per ton of iron is about 2200 to 2400 Nm 3 / tHM, the dust content of high temperature gas is 20~80g / Nm 3 After the high-temperature gas recovers heat through the water-cooled fume hood, the temperature drops to about 800°C, and then enters the high-temperature cyclone dust collector to remove a large amount of dust, and th...
Claims
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Login to View More IPC IPC(8): C21B13/00C10K1/02
CPCC10K1/002C10K1/024C21B13/0006
Inventor 孟玉杰梅丛华毛庆武陈玉敏曹朝真耿云梅王维乔银光宇胡祖瑞杨森王智政
Owner BEIJING SHOUGANG INT ENG TECH