CN2458280Y - Device for pumping titanium tetrachloride back into furnace - Google Patents

Abstract

The utility model relates to a device of slurry returning to a chlorination furnace through a fused salt chlorination procedure in chlorination process rutile type titanium dioxide production. The inner side of a slurry tank is provided with a stirrer and a slurry pump, wherein, the slurry pump is connected with a material feeding pipe passage; the other end of the material feeding pipe passage is connected with a material feeding valve and a return valve; the material feeding valve is connected with an ejector; the return valve is connected with a slurry tank through a return pipe passage; the slurry tank is arranged on the lower side of a leaching tower; the ejector is arranged on the top part of the chlorination furnace. The utility model can prevent a leaching system from clogging and ensure a furnace temperature within a control range.

Description

Titanium tetrachloride mud returns furnace apparatus

The utility model belongs to the halogenide oxidation style and produces titanium dioxide, and particularly fused salt chlorimation system crude titanic chloride mud returns furnace apparatus in the chlorination process Rutile type Titanium Dioxide production process.

The mechanism of fused salt chlorimation reaction is that (main component is TiO with titanium slag or rutile ₂) issue biochemical reaction generation titanium tetrachloride and other product with chlorine in the activated carbon effect at a certain temperature.This process belongs to thermopositive reaction.Because the plasticity-of fused salt chlorimation stove throughput is very big, surpass design load easily, be that 65t/ days fused salt chlorimation stove can be produced 130t/ days now as the our factory designed capacity.Intrinsic like this heat balance system is broken, and causes furnace temperature to raise, and the muriatic vapour pressure of various high boiling points in the stove is raise, and enter elution circuit, causes that solid content increases in the washing lotion, is easy to cause elution circuit to stop up and leads to a disaster.

The purpose of this utility model provides a kind of device that can as required mud be led back chlorination furnace, with control reaction in furnace temperature, draws unnecessary heat, prevents that elution circuit from stopping up, and avoids accident to take place.

To achieve these goals, following technical scheme is proposed.

A kind of titanium tetrachloride mud returns furnace apparatus, it is characterized in that agitator and slush pump are installed in the mud tank, slush pump links to each other with the material loading pipeline, and the other end of material loading pipeline connects material loading valve and return valve, the material loading valve connects injector, and return valve links to each other with mud tank by return line.Mud tank places below the eluting column, has a drip washing pump that washing lotion is drawn, and carries out heat exchange by double pipe cooler, sprays in the eluting column after the reduction temperature again.Injector is installed in the top of chlorination furnace.

Because agitator and slush pump are installed in mud tank, mud is back and forth flowed in pipeline, avoid elution circuit to stop up, and the open degree that can regulate material loading valve and return valve as required, control mud returns, sprays into chlorination furnace.Because the furnace high-temperature effect make liquid phase titanium tetrachloride heat absorption back gasification enter smoke processing system again, and mud falls into fused salt in the stove, together discharges with abraum salt.Absorb a large amount of heat energy more than needed when becoming gas phase by liquid phase, make the interior temperature of stove be in normal range of operation owing to titanium tetrachloride.When in the stove during temperature subnormal temperature, the aperture of material loading valve need be turned down, simultaneously the aperture of return valve be transferred big respective degrees, to reduce to spray into the mud amount of chlorination furnace, increase the mud amount that flows in the mud tank, guarantee that temperature is in normal range of operation in the chlorination furnace.

Description of drawings

Accompanying drawing is the structural representation of embodiment.

Narrate embodiment with reference to the accompanying drawings

Slush pump 2 and agitator 3 are installed in mud tank 1, and slush pump 2 links to each other with material loading pipeline 6, and the other end of material loading pipeline 6 connects material loading valve 8 and return valve 7, and material loading valve 8 connects injector 9, and return valve 7 links to each other with mud tank 1 by return line 5.Mud tank 1 places below the eluting column, and injector 9 is installed in the top of chlorination furnace 10.

Temperature is enough low in stove, when not needing to return mud in chlorination furnace, can open valve 7, makes mud directly return mud tank.

Eliminated the eluting column latch up phenomenon after using this device, guaranteed that furnace temperature fluctuates in span of control, system is normally moved.

Claims (1)

1. A kind of titanium tetrachloride mud returns furnace apparatus, it is characterized in that agitator and slush pump are installed in the mud tank, slush pump links to each other with the material loading pipeline, and the other end of material loading pipeline connects material loading valve and return valve, the material loading valve connects injector, and return valve links to each other with mud tank by return line.

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