Feed preheating device of reduced ferrotitanium powder calcining rotary furnace

Abstract

The invention discloses a feed preheating device of a reduced ferrotitanium powder calcining rotary furnace, and belongs to the technical field of reduced ferrotitanium powder production equipment. The device comprises a preheating box and a clamping plate; an external bracket is welded on the outer surface of the preheating box; a limiting column penetrates in a limiting groove; a feed pipe is arranged on the left side surface of the preheating box; a rotary furnace main body is connected with the lower end of a gas pipe; an exhaust port is formed in the surface of the gas pipe; a connectingpipe is screwed on the left side of a movable joint; an activated carbon filter screen is clamped in a clamping groove; and the clamping plate is positioned above the preheating box. Smoke in the rotary furnace main body can be filtered by the activated carbon filter screen when entering the connecting pipe, so that particle impurities carried in the smoke are intercepted; through the arrangement,the smoke impurities can be prevented from combining with ferrotitanium powder to maintain purity of the ferrotitanium powder; and the ferrotitanium powder accumulated in the preheating box is stirred by a stirring rod to achieve uniform heating of the ferrotitanium powder.

Description

technical field [0001] The invention relates to the technical field of production equipment for reduced ferrotitanium powder, in particular to a feed preheating device for a rotary kiln for calcining reduced ferrotitanium powder. Background technique [0002] Rotary furnace is a kind of thermal equipment for calcining, roasting or drying granular and powdery materials. Rotary furnace is mainly used for primary rough processing of powder or mineral materials, such as firing and calcining of cement clinker; preparation of titanium dioxide from kaolin , processing in the rare earth industry, etc., the rotary furnace is usually used in combination with preheating equipment to preheat the ferro-titanium powder in advance to reduce the energy consumption required for subsequent reduction of the ferro-titanium powder. [0003] The prior art has the following problems: 1. The flue gas and heat in the rotary kiln directly enter the preheating box, so the solid impurities carried in t...

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Problems solved by technology

[0003] The prior art has the following problems: 1. The flue gas and heat in the rotary kiln directly enter the preheating box, so the solid impurities carried in the flue gas directly contact the ferrotitanium powder, resulting in a decrease in the purity of the ferrotitanium powder. 2. The discharge port in the hot box is easily blocked by ferrotitanium powder, resulting in blocked feeding

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