Device for baking alloy furnace charge by aid of flue gas
A technology of alloy furnace and flue gas, which is applied in the direction of heating device, drying, drying machine, etc., can solve the problems of uneven composition of molten steel, blockage, bonding of alloy furnace materials, etc. quality effect
Inactive Publication Date: 2013-09-25
SHOUGANG CHANGZHI IRON & STEEL
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Problems solved by technology
However, the flame burns in direct contact with the alloy charge, and long-term baking will cause the alloy charge to stick, which is easy to cause blockage during the blanking process, and the large block alloy charge is not easy to melt after being added to molten steel, resulting in uneven composition of molten steel. lead to molten steel waste
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[0009] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments, but does not constitute any limitation to the present invention. figure 1 , figure 2 and image 3 As shown, the present invention includes a feed bin 1 and a gas pipe 2 communicating with the feed bin 1, and at least one combustion head is installed between the feed bin 1 and the gas pipe 2. The combustion head is composed of a combustion chamber 4, a burner 5 and an air distribution nozzle 6. The combustion chamber 4 penetrates into the silo 1 and communicates with the interior of the silo 1. The combustion chamber 4 is welded or screwed together with the silo 1. The upper part of the combustion chamber 4 is provided with an air distribution nozzle 6 that communicates with the combustion chamber 4. , The air distribution nozzle 6 is welded or screwed together with the combustion chamber 4, and the combustion chamber 4 rear end is provided wi...
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The invention discloses a device for baking alloy furnace charge. The quality of molten steel can be guaranteed by the device. The device comprises a bin and a gas pipe. The gas pipe is communicated with the bin, at least one combustion head is arranged between the bin and the gas pipe and comprises a combustion chamber, a combustion nozzle and an air distribution nozzle, each combustion chamber is fixed onto the bin and is communicated with the bin, each combustion nozzle which is communicated with the corresponding combustion chamber is arranged on the upper portion of the combustion chamber, and each combustion nozzle is arranged at the rear end of the corresponding combustion chamber. A hollow-out disc is arranged at the front end of each combustion nozzle, the rear end of each combustion nozzle is connected with the gas pipe, and the rear end of each air distribution nozzle is connected with an air pipe. The device has the advantages that a structure with the combustion heads and the bin which are matched with one another is adopted, the hollow-out discs are arranged at the front ends of the combustion nozzles, gas can be directly ignited at the hollow-out discs, and as flame is only combusted in the combustion chambers, the alloy furnace charge is not easy to adhere; the alloy furnace charge can be effectively uniformly heated, and accordingly the quality of the molten steel can be improved.
Description
technical field [0001] The invention relates to a roasting device, in particular to a roasting device utilizing flue gas. Background technique [0002] Various alloy charges are used in the steelmaking process, among which silicon-manganese alloy charge is the most commonly used. All kinds of alloy charges are placed in the air for a long time, and they are easy to absorb water. Some water also forms crystal water in the alloy charge, which will cause a large number of bubbles to form after the alloy charge is added to molten steel, forming inclusions, and affecting the quality of steelmaking. In addition, the low-temperature alloy charge needs to absorb a large amount of heat after being put into molten steel, which reduces the temperature of molten steel, resulting in increased energy consumption and an increase in the overall cost of steelmaking. In order to solve the above-mentioned problems, the way of burning and heating the alloy charge is usually adopted by directly...
Claims
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IPC IPC(8): F26B23/02
Inventor 谭惠奇尚明华
Owner SHOUGANG CHANGZHI IRON & STEEL