Smelting tail gas combustion device and combustion method
A combustion device and combustion method technology, applied in the field of metallurgy, can solve the problems of power consumption and high cost, and achieve the effects of easy automatic control, low cost and convenient operation
Pending Publication Date: 2021-03-26
PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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Problems solved by technology
[0004] The present invention firstly provides a smelting tail gas combustion device to solve the problem that the secondary combustion of smelting tail gas according to the existing method needs to consume electric energy and oil, resulting in high cost
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[0027] A titanium slag production enterprise produces 120,000 tons of titanium slag annually and invests 180,000 tons of titanium concentrate. The smelting tail gas from the titanium slag furnace is burned by the traditional fuel injection blast method, which consumes 120 tons of diesel oil annually and consumes a large amount of electric energy for blasting. By adopting the smelting tail gas combustion method of the present invention, the annual economic benefit is obvious, the oil is reduced by 0.8 kg per ton of titanium concentrate, and the power consumption is reduced by 21 kWh.
[0028] Benefits created by stopping fuel injection: W1=n×m×t=18×0.8×7200÷1000=1.0368 million yuan, of which: n-titanium concentrate consumption, 10,000 tons / year; m-ton titanium concentrate reduction Diesel consumption, kg / ton; t-diesel unit price, yuan / ton. Benefits from stopping blowing and reducing wind resistance: W2=n×k×p=18×21×0.5=1.89 million yuan, where: k-reduced power consumption, kWh / ...
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The invention discloses a smelting tail gas combustion device and a combustion method, relates to the field of metallurgy, and solves the problems of electric energy and oil consumption and high costin secondary combustion of smelting tail gas according to a traditional method. The smelting tail gas combustion device is characterized in that a smoke outlet of an electric furnace is connected witha flue; a secondary combustion chamber is arranged on the flue; an air supply port is formed in the position between the smoke outlet and the secondary combustion chamber, and is provided with a valve; and a smoke component detector is arranged on the front side of the secondary combustion chamber of the flue. The smelting tail gas is combusted in the secondary combustion chamber; and the smoke component detector detects the concentration of CO according to a detecting period, and timely adjusts the valve according to the concentration of CO. The air supply port can automatically intake air to achieve a combustion supporting effect; and through adjustment of the opening degree of the air supply port, the smelting tail gas is fully combusted without intake of excessive air, so that the smelting tail gas is economical, environment-friendly and controllable in combustion, and the cost is reduced. The smelting tail gas combustion device and the combustion method are suitable for optimal control of secondary combustion of the smelting tail gas.
Description
technical field [0001] The invention relates to the field of metallurgy, in particular to a device and method for controlling the secondary combustion process of smelting tail gas to fully burn the smelting tail gas. Background technique [0002] Titanium slag electric furnace smelting is a high-energy-consuming industry. Reducing energy consumption in the smelting process and efficiently recycling waste heat and energy are the directions that the industry has been working hard for many years. Under the situation of economic downturn in recent years, energy saving and consumption reduction, quality improvement and gain are more important to the business development of enterprises. [0003] Titanium slag electric furnace smelting is a reduction reaction between titanium concentrate and carbon. During the reaction process, a large amount of high-concentration CO (commonly known as coal gas) will be discharged along with the flue gas. The traditional method is to build a flue ...
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Patent Timeline
Login to View More IPC IPC(8): F27D17/00F27D21/00F23G7/06F23G5/14F23G5/46F23G5/50F23L1/00F23N3/00
CPCF23G5/14F23G5/46F23G5/50F23G7/06F23L1/00F23N3/00F27D17/00F27D21/00
Inventor 肖利任艳丽
Owner PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP