Method and device for magnesium method titanium sponge production reactor inner heat exchange

Abstract

An internal heat exchange method of the production reaction vessel made of magnesium spongy titanium and the equipment of it. The method is as following, the heat exchanger will be inserted into the inner of the reactor, and air-blown medium will be input into the heat exchanger to cool the magnesium spongy titanium in the reactor. The above heat exchanger is tube-in -tube heat exchanger, and the air-blown medium is compressed air and compressed argon. The equipment is tube-in -tube heat exchanger, the inside tube is installed in outer tube by the ring flange, intake tube will be installed on the upside profile of the inside tube, the sihghtglass will be installed on the top of the inside tube, the return tube will be installed on the topside profile of the outer tube. The assemblage ring flange used to connect with the reactor will be installed under the joint between the outer tube and the return tube. The ring shaped charging box will be welded to the outside of the tube-in -tube heat exchanger and the upside of the assemblage ring flange, several feed openings connected with the ring charging box locate uniformly on the ring flange along the circle. The locally high temperature can be banished by this method and this equipment, and the densification of the product can be prevented. And it can also shorten the production cycle, and improve the production energy.

Description

technical field [0001] The invention belongs to the magnesium method sponge production technology, and particularly relates to a heat exchange method and device inside a reactor during the reduction distillation process of an I-type or inverted U-type reduction distillation combined method sponge titanium production furnace. Background technique [0002] The production of titanium sponge by the magnesium method has two types of furnaces: I type and inverted U type, which are used for the combined reduction distillation method to produce sponge titanium, and the reactors used are all completed in the same heating furnace. In order to output the excess heat generated by the reduction reaction, a perforated refractory brick is arranged at the position of the heating furnace relative to the reaction zone, so that ventilation can output the excess heat of the reaction zone in the reactor. This heat dissipation method can only output the heat near the reactor wall, but it is not e...

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Problems solved by technology

This heat dissipation method can only output the heat near the reactor wall, but it is not easy to output the heat in the central area of ​​the reactor

Especially along with the enlargement of reactor capacity, above-mentioned method of ventilating heat radiation can not be effectively exported in time a large amount of heat that reduction reaction area produces, causes the spongy titanium lump that forms in the reduction process to make central part product compact (commonly said Hard core) and it is difficult to finish and break; therefore, the feeding speed has to be artificially slowed down during the reduction production process, which prolongs the production cycle and reduces the furnace capacity accordingly

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