CN104828860A - Titanium tetrachloride gas condensate collection system and collection process - Google Patents
Titanium tetrachloride gas condensate collection system and collection process Download PDFInfo
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- CN104828860A CN104828860A CN201510140674.6A CN201510140674A CN104828860A CN 104828860 A CN104828860 A CN 104828860A CN 201510140674 A CN201510140674 A CN 201510140674A CN 104828860 A CN104828860 A CN 104828860A
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Abstract
The invention discloses a titanium tetrachloride gas condensate collection system and collection process, by jet cleaning of a chloridized gas from a chlorination system, target product titanium tetrachloride in the chloridized gas is condensed, by rational utilization of cooling capacity, titanium tetrachloride entrainment quantity in exhaust is reduced, resistance drop of the whole condensation process system can be effectively controlled, coarse titanium tetrachloride collected by eddying method is preliminarily purified to reduce the solid content in order to reduce the equipment and pipe wear and prolong the life and cleaning cycle of related equipment, heat exchange efficiency of equipment of downstream purification refining process is improved, and the fouling degree of related equipment is reduced. In addition, eddied high-solid-content slurry is directly returned to the chlorination system for recycling of the titanium tetrachloride in the slurry, and the technical process is shortened.
Description
Technical field
The present invention relates to titanium tetrachloride gases condensation collection technique field, specifically a kind of titanium tetrachloride gases condensation gathering system and collection process.
Background technology
In titanium tetrachloride industrial production process, from chlorination furnace chloridating gas out mainly containing TiCl
4, CO
2, CO, N
2, the gaseous constituent such as HCl, be also entrained with unreacted coke and FeCl in gas in addition
2in other metal chloride dust, temperature is 147-200 DEG C, pressure at pressure-fired to 100kPa(gauge pressure) between.
At present, collecting the titanium tetrachloride in this kind of chloridating gas both at home and abroad, processing method is a lot, but the number of devices had in these techniques is many and bulky, and floor space is large, and control complicated, equipment internals easily block, and wearing and tearing are severe, must stop and could overhaul; Some technological process resistances are large, and dynamic equipment cannot adapt to technique and frequent parking maintenance preferably, produce load and are difficult to improve and cannot continuous seepage; Easily there is misoperation and there is a large amount of mud and be deposited in device bottom and occluding device in some technique, not only cleaning is frequent, and cause serious scale to the heat-exchange equipment that purification process is refined in downstream; The technique of the overwhelming majority does not consider the Appropriate application of energy in addition.
summary of the inventionthe object of this invention is to provide a kind of titanium tetrachloride gases condensation gathering system and collection process, to solve prior art Problems existing.
In order to achieve the above object, the technical solution adopted in the present invention is:
A kind of titanium tetrachloride gases condensation gathering system, it is characterized in that: comprise elementary Venturi scrubber, secondary Venturi scrubber, three grades of Venturi scrubbers, two crude titanic chloride storage tanks, a cold titanium tetrachloride storage tank, the gas phase import of described elementary Venturi scrubber is connected with outside chlorination system, the fluid inlet of elementary Venturi scrubber is connected with the outlet of a water recirculator, the outlet of elementary Venturi scrubber is connected with the import of first crude titanic chloride storage tank, first crude titanic chloride storage tank top has outlet to be connected with the gas phase import of secondary Venturi scrubber, first crude titanic chloride reservoir bottom has outlet to be connected with a cyclone inlets by swirler fresh feed pump, described cyclone outlet is connected with outside chlorination system, swirler also has outlet to be connected with second crude titanic chloride reservoir inlet, the fluid inlet of described secondary Venturi scrubber is connected by the outlet of automatic control adjustable valve with a line mixer, line mixer import is connected with the outlet of water recirculator, the outlet of secondary Venturi scrubber is connected with second crude titanic chloride reservoir inlet, second crude titanic chloride storage tank top has outlet to be connected with the gas phase import of three grades of Venturi scrubbers, second crude titanic chloride reservoir bottom has outlet to be connected with the import of water recirculator by crude titanic chloride recycle pump, and crude titanic chloride circulating-pump outlet also has bypass to outside, the fluid inlet of described three grades of Venturi scrubbers is connected with the outlet of a refrigerating fulid water cooler, three grades of Venturi scrubber outlets are connected with the import of cold titanium tetrachloride storage tank, cold titanium tetrachloride storage tank top has outlet to be connected with a gas-liquid separator import, cold titanium tetrachloride reservoir bottom has outlet to be connected with the import of refrigerating fulid water cooler by cold titanium tetrachloride recycle pump, and cold titanium tetrachloride circulating-pump outlet also has bypass to the import of line mixer, described gas-liquid separator top has outlet to be connected with external exhaust gas washing system, the bottom of gas-liquid separator has outlet to be connected with cold titanium tetrachloride storage tank.
Described titanium tetrachloride gases condensation collection process, it is characterized in that: the chloridating gas from chlorination system is introduced into the gas phase import of elementary Venturi scrubber, in elementary Venturi scrubber, fully mix with the crude titanic chloride from water recirculator and carry out mass-and heat-transfer, dust most in chloridating gas soaks by the crude titanic chloride of liquid phase simultaneously, the gas-liquid-solid mixed phase temperature going out elementary Venturi scrubber is controlled after 80 ~ 100 DEG C, enter first crude titanic chloride storage tank, in first crude titanic chloride storage tank, the titanium tetrachloride gases that part is not condensed and other non-condensable gases are extracted out from its top by secondary Venturi scrubber, the larger crude titanic chloride of solid content from first crude titanic chloride reservoir bottom out after be transported to swirler by swirler fresh feed pump, directly deliver to chlorination furnace after most of unreacted coke and other metal chloride solids impurity are condensed to titanium tetrachloride mud in swirler and reclaim titanium tetrachloride, from swirler crude titanic chloride clear liquid out still containing a small amount of solid impurity, enter crude titanic chloride circulation groove,
The uncooled titanium tetrachloride gases of part and other non-condensable gases out enter the gas phase import of secondary Venturi scrubber afterwards from first crude titanic chloride storage tank top, in secondary Venturi scrubber, fully mass-and heat-transfer is carried out with two strands of crude titanic chlorides from water recirculator and cold titanium tetrachloride recycle pump, control secondary Venturi scrubber liquid-solid mixed phase temperature of working off one's feeling vent one's spleen after 50 ~ 70 DEG C, enter second crude titanic chloride circulation groove, in second crude titanic chloride circulation groove, the titanium tetrachloride gases be not condensed on a small quantity is still had to extract out from its top by three grades of Venturi scrubbers with other non-condensable gases, crude titanic chloride recycle pump by the crude titanic chloride collected in second crude titanic chloride circulation groove after water recirculator is cooled to 30-50 DEG C, enter elementary Venturi scrubber and secondary Venturi scrubber respectively with condensation chloridating gas, when the liquid level in second crude titanic chloride circulation groove reaches higher, shunt a part of crude titanic chloride from crude titanic chloride circulating-pump outlet go refining or go out-of-bounds crude titanic chloride storage tank to deposit,
The titanium tetrachloride gases be not condensed on a small quantity is still had out to enter three grades of Venturi scrubbers with other non-condensable gases afterwards from second crude titanic chloride circulation groove top, in three grades of Venturi scrubbers, fully contact with the cold titanium tetrachloride from refrigerating fulid water cooler, titanium tetrachloride gases in non-condensable gas is absorbed cleanly by-20 ~-35 DEG C of cold titanium tetrachlorides substantially, controls three grades of Venturi scrubber outlet crude titanic chloride temperature after-10 ~-20 DEG C, enters cold titanium tetrachloride storage tank; Other non-condensable gases out enter gas-liquid separator afterwards from cold titanium tetrachloride storage tank top, follow-up vent gas washing system is removed after being caught by the titanium tetrachloride droplet carried secretly in non-condensable gas, the titanium tetrachloride droplet got off that is captured enters the recovery of cold titanium tetrachloride storage tank bottom gas-liquid separator, and the crude titanic chloride that cold titanium tetrachloride storage tank condensation is collected by cold titanium tetrachloride recycle pump is sent in three grades of Venturi scrubbers after refrigerating fulid water cooler is as cold as-20 ~-35 DEG C; When the liquid level in cold titanium tetrachloride storage tank is higher, line mixer is removed from cold four chlorinations of a cold titanium tetrachloride circulating-pump outlet shunting part, in line mixer, the crude titanic chloride of crude titanic chloride and-10 ~-25 of 30 ~ 50 DEG C DEG C fully mixes rear holding temperature and enter secondary Venturi scrubber after 20 ~ 40 DEG C;
In whole titanium tetrachloride gases condensation collection process, automatic control adjustable valve is adopted to regulate the crude titanic chloride flow entering Venturi scrubber at different levels, to control washing resistance drop at different levels and temperature drop, thus reach the whole pressure drop of condensation collection process of control and the yield of titanium tetrachloride.
The invention provides a kind of titanium tetrachloride gases condensation gathering system and collection process, adopt three grades of injection condensings and eddy flow deslagging method, can on-line maintenance, optimize technical process, reduce energy consumption and equipment attrition, number of devices and volume greatly reduce.This kind of technique generally can be applicable to the concerned process steps of chloride process titanium dioxide industry and titanium tetrachloride industry.
The simple compact efficient of whole system of the present invention, there is not existing technique and often occur equipment blocking and cleaning frequently, overcome existing process system resistance excessive, produce the situation that load is difficult to improve, control simple, installation and maintenance convenient (can on-line maintenance), take up an area less, have saved and invested and reduce operating maintenance expense.
Accompanying drawing explanation
Fig. 1 is present system principle schematic.
Embodiment
As shown in Figure 1, a kind of titanium tetrachloride gases condensation gathering system, comprise elementary Venturi scrubber 1, secondary Venturi scrubber 2, three grades of Venturi scrubbers 3, two crude titanic chloride storage tanks 6 and 7, a cold titanium tetrachloride storage tank 8, the gas phase import of elementary Venturi scrubber 1 is connected with outside chlorination system, the fluid inlet of elementary Venturi scrubber 1 is connected with the outlet of a water recirculator 4, the outlet of elementary Venturi scrubber 1 is connected with the import of first crude titanic chloride storage tank 6, first crude titanic chloride storage tank 6 top has outlet to be connected with the gas phase import of secondary Venturi scrubber 2, outlet is had to be connected with the import of a swirler 10 by swirler fresh feed pump 11 bottom first crude titanic chloride storage tank 6, swirler 10 outlet is connected with outside chlorination system, swirler 10 also has outlet to be connected with the import of second crude titanic chloride storage tank 7, the fluid inlet of secondary Venturi scrubber 2 is connected with the outlet of a line mixer 14 by automatic control adjustable valve 15, line mixer 14 import is connected with the outlet of water recirculator 4, the outlet of secondary Venturi scrubber 2 is connected with the import of second crude titanic chloride storage tank 7, second crude titanic chloride storage tank 7 top has outlet to be connected with the gas phase import of three grades of Venturi scrubbers 3, outlet is had to be connected by the import of crude titanic chloride recycle pump 12 with water recirculator 4 bottom second crude titanic chloride storage tank 7, and crude titanic chloride recycle pump 12 exports upper bypass in addition to outside, the fluid inlet of three grades of Venturi scrubbers 3 is connected with the outlet of a refrigerating fulid water cooler 5, three grades of Venturi scrubber 3 outlets are connected with the import of cold titanium tetrachloride storage tank 8, cold titanium tetrachloride storage tank 8 top has outlet to be connected with the import of a gas-liquid separator 9, outlet is had to be connected with the import of refrigerating fulid water cooler 5 by cold titanium tetrachloride recycle pump 13 bottom cold titanium tetrachloride storage tank 8, and cold titanium tetrachloride recycle pump 13 exports upper bypass in addition to the import of line mixer 14, gas-liquid separator 9 top has outlet to be connected with external exhaust gas washing system, the bottom of gas-liquid separator 9 has outlet to be connected with cold titanium tetrachloride storage tank 8.
A kind of titanium tetrachloride gases condensation collection process, chloridating gas from chlorination system is introduced into the gas phase import of elementary Venturi scrubber 1, in elementary Venturi scrubber 1, fully mix with the crude titanic chloride from water recirculator 4 and carry out mass-and heat-transfer, dust most in chloridating gas soaks by the crude titanic chloride of liquid phase simultaneously, the gas-liquid-solid mixed phase temperature going out elementary Venturi scrubber 1 is controlled to enter crude titanic chloride storage tank 6 after 80 ~ 100 DEG C, in crude titanic chloride storage tank 6, the titanium tetrachloride gases that part is not condensed and CO
2, CO, N
2extracted out by secondary Venturi scrubber 2 from its top Deng non-condensable gas.The larger crude titanic chloride of solid content bottom crude titanic chloride storage tank 6 out after be transported to swirler 10 by swirler fresh feed pump 11, in swirler 10, most of coke and FeCl
2deng other metal chloride solids impurity be condensed to titanium tetrachloride mud after directly deliver to chlorination system reclaim titanium tetrachloride.Crude titanic chloride circulation groove 7 is entered from swirler 10 crude titanic chloride clear liquid out (still containing a small amount of solid impurity).
The uncooled titanium tetrachloride gases of part and CO
2, CO, N
2out enter the gas phase import of secondary Venturi scrubber 2 afterwards from crude titanic chloride storage tank 6 top Deng non-condensable gas, in secondary Venturi scrubber 2, fully mass-and heat-transfer is carried out with two strands of crude titanic chlorides from water recirculator 4 and cold titanium tetrachloride recycle pump 13, control secondary Venturi scrubber 2 liquid-solid mixed phase temperature of working off one's feeling vent one's spleen and enter crude titanic chloride circulation groove 7 after 50 ~ 70 DEG C, in crude titanic chloride circulation groove 7, still have the titanium tetrachloride gases and CO that are not condensed on a small quantity
2, CO, N
2extract out from its top by three grades of Venturi scrubbers 3 Deng non-condensable gas.The crude titanic chloride collected in crude titanic chloride circulation groove 7 after water recirculator 4 is cooled to 30-50 DEG C, is entered elementary Venturi scrubber 1 and secondary Venturi scrubber 2 with condensation chloridating gas by crude titanic chloride recycle pump 12 respectively.When the liquid level in crude titanic chloride circulation groove 7 reaches higher, shunt a part of crude titanic chloride from crude titanic chloride circulating-pump outlet and go refining or go out-of-bounds crude titanic chloride storage tank to deposit.
Still have the titanium tetrachloride gases and CO that are not condensed on a small quantity
2, CO, N
2three grades of Venturi scrubbers 3 are out entered afterwards from crude titanic chloride circulation groove 7 top Deng non-condensable gas, in three grades of Venturi scrubbers 3, fully contact with the cold titanium tetrachloride from refrigerating fulid water cooler 5, titanium tetrachloride gases in non-condensable gas is absorbed cleanly by-20 ~-25 DEG C of cold titanium tetrachlorides substantially, controls three grades of Venturi scrubbers 3 and exports crude titanic chloride temperature after-10 ~-20 DEG C, enter cold titanium tetrachloride storage tank 8.CO
2, CO, N
2out enter gas-liquid separator 9 Deng non-condensable gas afterwards from cold titanium tetrachloride storage tank 8 top, after being caught by the titanium tetrachloride droplet carried secretly in non-condensable gas, remove follow-up vent gas washing system.The titanium tetrachloride droplet that gets off of being captured enters cold titanium tetrachloride storage tank 8 and reclaims bottom gas-liquid separator 9.The crude titanic chloride that cold titanium tetrachloride storage tank 8 condensation is collected is sent in three grades of Venturi scrubbers 3 by cold titanium tetrachloride recycle pump 13 after refrigerating fulid water cooler 5 is as cold as-20 ~-25 DEG C.When the liquid level in cold titanium tetrachloride storage tank 8 is higher, line mixer 14 is removed from cold four chlorinations of a cold titanium tetrachloride recycle pump 13 outlet manifold part, in line mixer 14, the crude titanic chloride of crude titanic chloride and-10 ~-20 of 30 ~ 50 DEG C DEG C fully mixes rear holding temperature and enter secondary Venturi scrubber 2 after 20 ~ 40 DEG C.
In whole titanium tetrachloride gases condensation collection process, automatic control adjustable valve 15 is adopted to regulate the crude titanic chloride flow entering Venturi scrubber at different levels, to control washing resistance drop at different levels and temperature drop, thus reach the whole pressure drop of condensation collection process of control and the yield of titanium tetrachloride.
In the present invention, first dust-laden chloridating gas carries out elementary scrubbing dust collection cooling in elementary Venturi scrubber 1, then enter in secondary Venturi scrubber 2 and carry out secondary washing cooling, after three grades of freezing washings of Venturi scrubber 3, pass through gas-liquid separator 9 separating titanium tetrachloride drop again, be finally sent to vent gas washing system.Every grade of Venturi scrubber is all furnished with pressure-controlling and titanium tetrachloride collection storage tank.Be sent to chlorination system after solid content in condensation gathering system is concentrated by swirler 10 and reclaim titanium tetrachloride.The heat of whole system is removed by water recirculator 4 and refrigerating fulid water cooler 5.
In the present invention, adopt elementary Venturi scrubber 1, secondary Venturi scrubber 2 and three grades of Venturi scrubbers 3 to wash condensation chloridating gas.Wherein every grade of Venturi scrubber inventory is identical with the quantity of on-line operation.
In the present invention, adopt swirler 10 be separated and concentrate the solid content in crude titanic chloride, and the mud after concentrated is directly sent to chlorination system recovery titanium tetrachloride wherein.Simultaneously enter crude titanic chloride circulation groove 7 from swirler 10 titanium tetrachloride clear liquid out, delivered to after water recirculator 4 cools by crude titanic chloride recycle pump 12 again and enter elementary Venturi scrubber 1 and secondary Venturi scrubber 2 respectively, participate in the cooling of chloridating gas, dedusting and condensation wherein.
In the present invention, elementary Venturi scrubber 1, secondary Venturi scrubber 2 are different with the crude titanic chloride temperature that three grades of Venturi scrubbers 3 wash, and from downtrending.Wherein elementary Venturi scrubber 1 adopts merely through the crude titanic chloride of circulating water, and temperature maintains 30 ~ 50 DEG C; Secondary Venturi scrubber 2 adopts the crude titanic chloride of circulating water and through the cooled titanium tetrachloride mixed solution of refrigerating fulid, temperature maintains 20 ~ 40 DEG C; Three grades of Venturi scrubbers 3 adopt merely through the titanium tetrachloride of refrigerating fulid cooling, and temperature maintains-20 ~-25 DEG C.
In the present invention, after cold titanium tetrachloride storage tank 8 reaches higher liquid level, distribute cold titanium tetrachloride by cold titanium tetrachloride recycle pump 13 and go secondary Venturi scrubber 2 and direct outer row.And cold titanium tetrachloride and enter secondary Venturi scrubber 2 from the titanium tetrachloride that secondary Venturi scrubber 2 is gone in water recirculator 4 outlet after line mixer 14 fully mixing.
In the present invention, chlorinated exhaust eventually passes gas-liquid separator 9 and isolates the titanium tetrachloride drop carried secretly in non-condensable gas, and then enters vent gas washing system.And gas-liquid separator 9 adopts centrifugal separator, from gas-liquid separator 9 top, pipeline out must slope aspect vent gas washing system, the gradient >=0.005.
In the present invention, automatic control adjustable valve 15 is adopted to regulate the crude titanic chloride flow entering Venturi scrubber at different levels, to control washing resistance drop at different levels and temperature drop, thus reach the yield of active princlple titanium tetrachloride in the pressure drop and chloridating gas controlling whole condensation collection process.
Claims (2)
1. a titanium tetrachloride gases condensation gathering system, it is characterized in that: comprise elementary Venturi scrubber, secondary Venturi scrubber, three grades of Venturi scrubbers, two crude titanic chloride storage tanks, a cold titanium tetrachloride storage tank, the gas phase import of described elementary Venturi scrubber is connected with outside chlorination system, the fluid inlet of elementary Venturi scrubber is connected with the outlet of a water recirculator, the outlet of elementary Venturi scrubber is connected with the import of first crude titanic chloride storage tank, first crude titanic chloride storage tank top has outlet to be connected with the gas phase import of secondary Venturi scrubber, first crude titanic chloride reservoir bottom has outlet to be connected with a cyclone inlets by swirler fresh feed pump, described cyclone outlet is connected with outside chlorination system, swirler also has outlet to be connected with second crude titanic chloride reservoir inlet, the fluid inlet of described secondary Venturi scrubber is connected by the outlet of automatic control adjustable valve with a line mixer, line mixer import is connected with the outlet of water recirculator, the outlet of secondary Venturi scrubber is connected with second crude titanic chloride reservoir inlet, second crude titanic chloride storage tank top has outlet to be connected with the gas phase import of three grades of Venturi scrubbers, second crude titanic chloride reservoir bottom has outlet to be connected with the import of water recirculator by crude titanic chloride recycle pump, and crude titanic chloride circulating-pump outlet also has bypass to outside, the fluid inlet of described three grades of Venturi scrubbers is connected with the outlet of a refrigerating fulid water cooler, three grades of Venturi scrubber outlets are connected with the import of cold titanium tetrachloride storage tank, cold titanium tetrachloride storage tank top has outlet to be connected with a gas-liquid separator import, cold titanium tetrachloride reservoir bottom has outlet to be connected with the import of refrigerating fulid water cooler by cold titanium tetrachloride recycle pump, and cold titanium tetrachloride circulating-pump outlet also has bypass to the import of line mixer, described gas-liquid separator top has outlet to be connected with external exhaust gas washing system, the bottom of gas-liquid separator has outlet to be connected with cold titanium tetrachloride storage tank.
2. the collection process based on titanium tetrachloride gases condensation gathering system described in claim 1, it is characterized in that: the chloridating gas from chlorination system is introduced into the gas phase import of elementary Venturi scrubber, in elementary Venturi scrubber, fully mix with the crude titanic chloride from water recirculator and carry out mass-and heat-transfer, dust most in chloridating gas soaks by the crude titanic chloride of liquid phase simultaneously, the gas-liquid-solid mixed phase temperature going out elementary Venturi scrubber is controlled after 80 ~ 100 DEG C, enter first crude titanic chloride storage tank, in first crude titanic chloride storage tank, the titanium tetrachloride gases that part is not condensed and other non-condensable gases are extracted out from its top by secondary Venturi scrubber, the larger crude titanic chloride of solid content from first crude titanic chloride reservoir bottom out after be transported to swirler by swirler fresh feed pump, directly deliver to chlorination furnace after most of unreacted coke and other metal chloride solids impurity are condensed to titanium tetrachloride mud in swirler and reclaim titanium tetrachloride, from swirler crude titanic chloride clear liquid out still containing a small amount of solid impurity, enter crude titanic chloride circulation groove,
The uncooled titanium tetrachloride gases of part and other non-condensable gases out enter the gas phase import of secondary Venturi scrubber afterwards from first crude titanic chloride storage tank top, in secondary Venturi scrubber, fully mass-and heat-transfer is carried out with two strands of crude titanic chlorides from water recirculator and cold titanium tetrachloride recycle pump, control secondary Venturi scrubber liquid-solid mixed phase temperature of working off one's feeling vent one's spleen after 50 ~ 70 DEG C, enter second crude titanic chloride circulation groove, in second crude titanic chloride circulation groove, the titanium tetrachloride gases be not condensed on a small quantity is still had to extract out from its top by three grades of Venturi scrubbers with other non-condensable gases, crude titanic chloride recycle pump by the crude titanic chloride collected in second crude titanic chloride circulation groove after water recirculator is cooled to 30-50 DEG C, enter elementary Venturi scrubber and secondary Venturi scrubber respectively with condensation chloridating gas, when the liquid level in second crude titanic chloride circulation groove reaches higher, shunt a part of crude titanic chloride from crude titanic chloride circulating-pump outlet go refining or go out-of-bounds crude titanic chloride storage tank to deposit,
The titanium tetrachloride gases be not condensed on a small quantity is still had out to enter three grades of Venturi scrubbers with other non-condensable gases afterwards from second crude titanic chloride circulation groove top, in three grades of Venturi scrubbers, fully contact with the cold titanium tetrachloride from refrigerating fulid water cooler, titanium tetrachloride gases in non-condensable gas is absorbed cleanly by-20 ~-25 DEG C of cold titanium tetrachlorides substantially, controls three grades of Venturi scrubber outlet crude titanic chloride temperature after-10 ~-20 DEG C, enters cold titanium tetrachloride storage tank; Other non-condensable gases out enter gas-liquid separator afterwards from cold titanium tetrachloride storage tank top, follow-up vent gas washing system is removed after being caught by the titanium tetrachloride droplet carried secretly in non-condensable gas, the titanium tetrachloride droplet got off that is captured enters the recovery of cold titanium tetrachloride storage tank bottom gas-liquid separator, and the crude titanic chloride that cold titanium tetrachloride storage tank condensation is collected by cold titanium tetrachloride recycle pump is sent in three grades of Venturi scrubbers after refrigerating fulid water cooler is as cold as-20 ~-25 DEG C; When the liquid level in cold titanium tetrachloride storage tank is higher, line mixer is removed from cold four chlorinations of a cold titanium tetrachloride circulating-pump outlet shunting part, in line mixer, the crude titanic chloride of crude titanic chloride and-10 ~-20 of 30 ~ 50 DEG C DEG C fully mixes rear holding temperature and enter secondary Venturi scrubber after 20 ~ 40 DEG C;
In whole titanium tetrachloride gases condensation collection process, automatic control adjustable valve is adopted to regulate the crude titanic chloride flow entering Venturi scrubber at different levels, to control washing resistance drop at different levels and temperature drop, thus reach the whole pressure drop of condensation collection process of control and the yield of titanium tetrachloride.
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