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Method for combined production of fuel and steam and vanadium pentoxide raw material based on vanadium-bearing stone coal

A vanadium pentoxide, production method technology, applied in the direction of vanadium oxide, fuel, solid fuel, etc., can solve the problem of low volatile content, and achieve the effect of achieving feasibility

Active Publication Date: 2019-02-26
湖北谷城新和有限公司 +1
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Problems solved by technology

[0005] However, the fixed carbon content of vanadium-containing stone coal is generally only 10%-20%, the volatile matter is also very low, and the calorific value is only 2000-3200 kcal / kg. It cannot be directly used as fuel for fluidized bed boilers, and a reasonable fuel ratio design is required. , in order to become the fuel of the fluidized bed boiler

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  • Method for combined production of fuel and steam and vanadium pentoxide raw material based on vanadium-bearing stone coal
  • Method for combined production of fuel and steam and vanadium pentoxide raw material based on vanadium-bearing stone coal

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[0022] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0023] The invention provides a fuel production method based on co-producing steam and vanadium pentoxide raw materials from vanadium-containing stone coal, which includes the following steps:

[0024] S1. Use vanadium-containing stone coal as the basic fuel according to the following weight components, add 15-40 parts of bituminous coal and 3 parts of modified filler to every 100 parts of vanadium-containing stone coal;

[0025] S2. After the above-mentioned mixed fuel is uniformly mixed, crushing and screening are performed in sequence to obtain fuel particles with a particle size of 3-5 mm;

[0026] S3. Use the above-ment...

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Abstract

The invention discloses a method for combined production of a fuel and steam and a vanadium pentoxide raw material based on vanadium-bearing stone coal, and the method comprises the following steps: S1, proportioning the vanadium-bearing stone coal as a basic fuel, bituminous coal and a modified filler to obtain a mixed fuel, wherein 15-40 by weight parts of the bituminous coal and 3 by weight parts of the modified filler are added into every 100 parts of the vanadium-containing stone coal; S2, uniformly mixing the mixed fuel, and sequentially crushing and screening to obtain fuel particles with the particle size of 3-5 mm; S3, feeding the processed mixed fuel as a fuel of a circulating fluidized bed boiler into the circulating fluidized bed boiler for combustion; and S4, and taking combusted ash discharged from all the parts of the circulating fluidized bed boiler for mixing to obtain a mixture for extracting the vanadium pentoxide raw material; according to the method, the fuel ratiois reasonably designed, the mixed stone coal is combusted in the fluidized bed boiler, the vanadium content of the obtained slag residual ash is generally about 0.95-1.7%, and the obtained slag residual ash is suitable for extracting the vanadium pentoxide, so that the coal gangue fuel ratio and the feasibility of extracting vanadium from boiler furnace slag are realized.

Description

Technical field [0001] The invention relates to the technical field of production of vanadium pentoxide, in particular to a fuel production method based on co-producing steam and vanadium pentoxide raw materials from vanadium-containing stone coal. Background technique [0002] Vanadium is an important strategic material, mainly used in the steel industry, cutting-edge defense technology, chemical industry, light textile industry, and emerging vanadium batteries. There are two main types of raw materials for the production of vanadium pentoxide: vanadium-titanium magnetite and vanadium-containing stone coal. Among them, vanadium-bearing stone coal accounts for 87% of my country's vanadium resources. [0003] Industrial steam is the basic power condition for chemical and light industry production. Fluidized bed boilers are currently widely used in chemical production enterprises. The fluidized bed boiler is a new type of high-efficiency combustion boiler that has emerged in the pa...

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Application Information

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IPC IPC(8): C10L5/04C10L9/10C01G31/02
CPCC01G31/02C10L5/04C10L9/10
Inventor 赵卓成李盛龙付荣华赵国旗彭斌
Owner 湖北谷城新和有限公司
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