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Method for treating and recycling vanadium product reduction tail gas

A technology for exhaust gas treatment and products, which is used in waste heat treatment, lighting and heating equipment, furnace components, etc., and can solve problems such as exhaust gas reuse

Inactive Publication Date: 2009-07-08
PANZHIHUA GANGCHENG GROUP RUITONG REFRIGERATION EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem that the current vanadium product production enterprises do not reuse the tail gas produced by the reduction kiln and directly ignite and discharge it, the present invention provides a method for treating and reusing the tail gas

Method used

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  • Method for treating and recycling vanadium product reduction tail gas

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Embodiment Construction

[0010] The temperature of the reduction tail gas produced by the vanadium product reduction system is about 400°C, which mainly contains combustible gases such as carbon monoxide and methane. The tail gas is sprayed and washed to remove impurities, and the temperature is lowered to about 80°C; The cooling system with the thermal device as the core cools down to the dew point temperature, condenses the water in the tail gas, and generates pure combustible gas, which can be returned to the vanadium product reduction system for heating and burning outside the reduction kiln, heating the raw materials in the kiln and coke oven Gas to about 850°C.

[0011] The function of spray washing is to remove impurities and reduce the temperature of the tail gas; the function of the cooling system is to further reduce the temperature of the tail gas to the dew point so as to condense the moisture in it; the function of the cooling system is to produce cooling water for cooling the tail gas and...

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Abstract

The invention discloses a vanadium product reduction exhaust processing and recycling method. The method comprises a vanadium product reducing system, a spray rinse system, a cooling system and a cooling water recycle system, exhaust generated by the vanadium product reducing system is sent into the spray rinse system for rinsing and then sent to the cooling system for being cooled for further removing moisture, then the exhaust is returned to the vanadium product reducing system for burning and reducing. The method realizes cycle use of reduced exhaust and zero discharge thereof, and consumption of coke-oven gas in the production process of the vanadium products can be reduced by about 10%.

Description

technical field [0001] The invention relates to the treatment of tail gas from the reduction of vanadium products, in particular to a treatment and reuse method of the tail gas from the reduction of vanadium products. Background technique [0002] When vanadium product enterprises produce vanadium products, they generally use coke oven gas to reduce raw materials by externally heating the reduction kiln (that is, heating outside the kiln and reducing reaction inside the kiln). In this process, coke oven gas has two main uses. On the one hand, it is used as a reducing gas to reduce the raw materials in the kiln when the hydrogen in the gas (content is about 55-60%) is around 850°C. The consumption accounts for about one-seventh; the second use is as a fuel, which is burned outside the reduction kiln, and the raw materials in the kiln and itself are heated to about 850 °C. [0003] Coke oven gas is used as a reducing agent through the above process and the tail gas formed aft...

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Application Information

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IPC IPC(8): C22B34/22C22B5/12F27D17/00
CPCY02P10/25
Inventor 周道选王春树
Owner PANZHIHUA GANGCHENG GROUP RUITONG REFRIGERATION EQUIP