Multi-laminar flow cribriform-plate-free boiling chloridization furnace

Abstract

The invention discloses a furnace with four segments, which is characterized by the following: the flannel (11) on the bottom of first furnace segment connects base flannel (14) with furnace base (13) through bolt, the second furnace segment (2) is conical, the third furnace segment is conical, the forth furnace segment (4) is column, the furnace base (13) is integral three-layer chlorine reserving structure, whose bottom board steel board (28) possesses cone chlorine reserving chamber of fireproof concrete, the chlorine inlet and outlet are opened on the chlorine reserving chamber, which is distributed at ring shape, the chlorine inlet connects chlorine pipe with each chlorine pipe allocating chlorine flow self-adjusting tool (24), the discharge hole (15) is set on the center of furnace base (13).

Description

technical field [0001] The invention relates to the preparation of titanium tetrachloride, in particular to a boiling chlorination furnace. Background technique [0002] At present, domestic and foreign chlorination methods mostly use boiling chlorination furnaces with sieve plates. The advantages are that the fluidized bed in the furnace is stable, easy to control, simple in equipment, and easy to make. Channeling will deteriorate the production index and even force the furnace to be shut down. Therefore, the requirements for titanium-containing materials (natural rutile, artificial rutile, high-titanium slag, etc.), especially the requirements for calcium and magnesium impurities are relatively high. my country is a country with rich titanium resources. 95% of titanium ore is rock ore, which contains high impurities such as magnesium and calcium. The high-titanium slag produced by electric arc furnace smelting generally contains 7-10% Mgo+Cao, and is produced in the chlori...

AI Technical Summary

Problems solved by technology

[0002] At present, domestic and foreign chlorination methods mostly use boiling chlorination furnaces with sieve plates. The advantages are that the fluidized bed in the furnace is stable, easy to control, simple in equipment, and easy to make. Ditching makes the production index worse, and even forced to shut down the furnace, so the requirements for titanium-containing materials (natural rutile, artificial rutile, high-titanium slag, etc.), especially the requirements for calcium and magnesium impurities are relatively high

my country is a country with rich titanium resources. 95% of titanium ore is rock ore, which contains high impurities such as magnesium and calcium. The high-titanium slag produced by electric arc furnace smelting generally contains 7-10% Mgo+Cao, and is produced in the chlorination process. Magnesium and calcium chlorides are in a molten state at normal operating temperature, which is easy to block the holes of the sieve plate, so that the production cannot be carried out normally. The furnace must be shut down to replace the sieve plate. The replacement cycle is frequent, usually once every 20 to 30 days, and the labor intensity is high. The operation is dangerous, which seriously restricts the production of boiling chlorination

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