Closed automatic slag discharge device for boiling chlorination furnace

Abstract

The invention provides a closed automatic slag discharge device for a boiling chlorination furnace. The slag discharge device comprises a slag discharge tube, a slag tank and a slag storage funnel, wherein the slag discharge tube is slantways arranged on a boiling section of a furnace body downward; the input port of the slag discharge tube is communicated with an inner cavity of the furnace bodyand the output port of the slag discharge tube is communicated with the input port of the slag tank; the output port of the slag tank is formed in a cavity body of the slag storage funnel; and in theslag discharge device, a first material seal is formed through furnace slag retained in the slag tank and a second material seal is formed through furnace slag discharged to the slag storage funnel. The closed automatic slag discharge device can realize closed automatic overflow and continuous slag discharge based on an automatic overflow theory under the condition that the height of a bed layer in the boiling chlorination furnace is in direct proportion to the material quantity and the differential pressure of the bed layer; during slag discharge, the chlorine supply and the material supply are not required to be stopped; in the whole production process, the height of the bed layer of the boiling chlorination furnace is kept stable automatically, so stable and high fluidization quality can be obtained and the chlorine utilization rate can be increased remarkably; moreover, two material seals are formed through the furnace slag in the slag tank and the furnace slag in the slag storagefunnel and the chlorine cannot be leaked, so the working environment and the working condition are improved basically.

Description

technical field [0001] The invention relates to a fluidized chlorination furnace, in particular to a closed automatic slagging device for the fluidized chlorination furnace. Background technique [0002] In the mid-1970s, Guangzhou Institute of Nonferrous Metals researched and developed a new technology of boiling chlorination without sieve plate, which was industrialized in 1979. It replaced the traditional boiling chlorination furnace with sieve plate, and it can not only chlorinate ordinary high-titanium It can also chlorinate the high-titanium slag of Panzhihua Mine containing ∑MgO+CaO as high as 7% to 9%, and has passed the acceptance of Panzhihua Mine Titanium Resources National Key Scientific and Technological Project. Since the fluidized chlorination furnace without sieve plate can operate stably for a long time, it has been used in many titanium factories in my country. However, at present, various manufacturers generally adopt intermittent manual slag removal meth...

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Problems solved by technology

[0004] The purpose of the present invention is to address the above-mentioned problems and deficiencies, to provide a method that can solve the serious environmental pollution caused by the leakage of chlorine gas caused by the existing intermittent artificial slagging method and the large change in the bed height of the boiling chlorination furnace before and after slagging. Closed automatic slagging device for fluidized chlorination furnace that leads to problems such as low utilization rate of chlorine gas and low reaction efficiency

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