A method for igniting and starting a boiling chlorination furnace with a plasma gun

Abstract

The invention discloses a plasma gun ignition blow-on method of a boiling chlorination furnace. High energy plasma generated by a plasma gun is taken as start energy for ignition and heating; compressed air is taken as the combustion improver; a boiling chlorination reaction raw material bed is gradually heated and ignited in a sectional type; after ignition and heating, the control system of a chlorination reactor is started, and the ignition-heating and device starting-running are seamlessly jointed. The technology is characterized in that (1) high energy plasma generated by a plasma gun istaken as the start energy for the ignition and heating of a boiling chlorination furnace, and the plasma is simple and is easy to control; (2) the raw materials are used to build a bed; other fuels such as coal, oil, gas, and the like, are not needed; the burning does not generated any smoke, and the technology is clean and environmentally friendly; (3) petroleum coke of the raw materials for building the bed is burned by the plasma flame, fine petroleum coke is burned at first, then coarse petroleum coke is burned, the burning is fast, the temperature is easy to control, energy is saved, andthe efficiency is high; and (4) ignition-heating and device starting-running are seamlessly jointed, and the production efficiency is high.

Description

technical field [0001] The invention relates to a method for igniting and starting a fluidized chlorination furnace, in particular to a method for igniting and starting a fluidized chlorination furnace with a plasma gun. Background technique [0002] In recent years, the technology of producing titanium tetrachloride by boiling chlorination of titanium slag and rutile has made continuous progress in China, but generally speaking, the industrialization of titanium tetrachloride develops slowly, including the large-scale boiling chlorination furnace and its control technology . At present, when the fluidized fluidized furnace is started to heat up, carbon blocks (coke, charcoal, etc.) are often used as fuel, and the method of artificial ignition and oil-gas ignition are used to start the furnace to heat up, which not only wastes fuel, but also takes time and effort. During the smoke treatment, it is inevitable to pollute the external environment, especially for large fluidize...

AI Technical Summary

Problems solved by technology

At present, when the fluidized fluidized furnace is started to heat up, carbon blocks (coke, charcoal, etc.) are often used as fuel, and the method of artificial ignition and oil-gas ignition are used to start the furnace to heat up, which not only wastes fuel, but also takes time and effort. During the smoke treatment, it is inevitable to pollute the external environment, especially for large fluidized fluidized furnaces, the manual labor is more arduous, more fuel is consumed during the ignition process, and the smoke emission generated during the fuel combustion process is treated more intensively, and it is more difficult to avoid exhaust gas pollution problem

[0003] Furthermore, because the water content in the generally used fuel carbon block is not controlled, more water vapor will be generated during the combustion process, which will accumulate in some cracks and corners of the system, so that after the chlorination reaction, titanium tetrachloride will absorb water and transform, which will not only easily aggravate the equipment Corrosion can also easily cause equipment blockage, which seriously affects the production efficiency of titanium tetrachloride in large-scale boiling chlorination production

[0004] Furthermore, in the process of using carbon block fuel or adding other auxiliary fuels to directly carry out manual ignition or oil-gas ignition, it is difficult to control the degree of fuel combustion, which may easily lead to excessive heating of local raw materials and sintering of raw materials

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