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Method and device for roasting sodium oxide by using shaft furnace

A roasting device and sodium oxide technology, applied in furnaces, vertical furnaces, furnace types, etc., can solve the problems of poor control of roasting temperature and atmosphere, large initial investment, low conversion rate, etc., to overcome the problems of kiln body The effect of ringing or rake teeth bonding accumulation, high vanadium conversion rate, and strong adaptability

Inactive Publication Date: 2013-05-29
CHAOYANG HEAVY MACHINERY DEV
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Problems solved by technology

[0009] The present invention aims to solve the problem of large initial investment, low output, low conversion rate, poor control of roasting temperature and atmosphere, and kiln body ring formation or rake tooth sticking due to material sticking in the prior art sodium oxide roasting equipment. The technical problem of the defect provides a shaft furnace type sodium oxide roasting method and device

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  • Method and device for roasting sodium oxide by using shaft furnace

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Embodiment Construction

[0030] See figure 1 . The shaft furnace type sodium oxidation roasting device of the present invention comprises: a furnace wall brickwork body 1, a furnace chamber 2, a rotary feeder 3, a drying bed 4, a combustion chamber 5, a blower 6, a grating plate 7, a discharge device 8 and Smoke collection hood 9. in:

[0031] Furnace wall brick body 1 is arranged vertically. In this specific embodiment, the cross-section of the furnace-strength brickwork is rectangular. Furnace cavity 2 is surrounded by furnace wall brickwork and is vertically arranged. In this specific embodiment, the cross-section of the furnace cavity is also rectangular, and the size of the cross-section of the furnace cavity changes gradually from top to bottom along the height direction, such as tapering, constant, gradually expanding and tapering. The center of the furnace wall brick body 1 is provided with a diversion partition wall 11 that divides the furnace wall brick body into two. The furnace chamb...

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Abstract

The invention discloses a method for roasting sodium oxide by using a shaft furnace. The method comprises the following steps of: feeding pelletized materials by using a rotary feeder positioned above a furnace wall brickmasonary to a drying bed which is inclined downwards; feeding into a vertical furnace cavity enclosed by the furnace wall brickmasonary after the pelletized materials are dried by the drying bed; and in the process of moving the materials downwards in the furnace cavity, reacting the materials with combustion gas which is generated by combustion in a combustion chamber and isfed into the furnace cavity from a fire spraying port positioned in the middle of the furnace wall brickmasonary and mixed gas formed by secondary air from the lower part of the furnace cavity to finish roasting the sodium oxide, cooling the roasted materials by using cooling air generated by an air blower positioned below the furnace wall brickmasonary, and discharging by using a discharging device positioned below the furnace wall brickmasonary, wherein the secondary air is heat exchanged hot air formed by the roasted materials after the cooling of the cooling air. The invention also discloses a device for roasting the sodium oxide by using the shaft furnace. The method and the device can be applied in the field of roasting of the sodium oxide.

Description

technical field [0001] The present invention relates to the technical field of sodium oxide roasting in the metallurgical vanadium extraction process using vanadium-titanium magnetite and vanadium-containing stone coal as raw materials, in particular to an economical, high-efficiency and energy-saving shaft furnace type sodium oxide roasting method and device. Background technique [0002] Vanadium has excellent physical properties, stable chemical properties, and good catalytic properties, and it is widely used in many fields such as industry, military affairs, and aviation. Titanium is also widely used in chemical industry, metallurgy, aviation and other fields because of its excellent physical and chemical properties. Developed countries attach great importance to the development of vanadium and titanium industry, and have always regarded vanadium and titanium as a strategic material reserve. my country has listed vanadium as one of the rare elements restricted for expor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B1/02F27B1/00C22B34/22
Inventor 张井凡董辉蔡九菊王连勇赵勇苏伟朱大为
Owner CHAOYANG HEAVY MACHINERY DEV
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