CN101423246A - Liquid phase dust collection method of titanic chloride solid dust collection - Google Patents
Liquid phase dust collection method of titanic chloride solid dust collection Download PDFInfo
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- CN101423246A CN101423246A CNA2008102289222A CN200810228922A CN101423246A CN 101423246 A CN101423246 A CN 101423246A CN A2008102289222 A CNA2008102289222 A CN A2008102289222A CN 200810228922 A CN200810228922 A CN 200810228922A CN 101423246 A CN101423246 A CN 101423246A
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Abstract
The invention provides a liquid phase dust collection method of solid dust collection slag of titanium tetrachloride. Titanium tetrachloride gas which contains ferric trichloride, ferrous chloride, aluminium trichloride and carbon particulates from furnace gas temperature control and dust collection processes enters a liquid phase dust collector from a lateral surface on the upper side of a dust collection tower, is mixed with liquid titanium tetrachloride sprayed down and then cooled and washed; ferric trichloride, ferrous chloride, aluminium trichloride and carbon particulates enter a titanium tetrachloride mud circulation tank together with liquid titanium tetrachloride, titanium tetrachloride gas without particulates after purification enters a leaching process from the upper side of another dust collection tower, and titanium tetrachloride containing particulates in the titanium tetrachloride mud circulation tank is transported to a heat interchanger through an submerged sludge pump and cooled, afterward, a part of the titanium tetrachloride enters a liquid phase dust collector for leaching and cooling, while the other part of the titanium tetrachloride returns to the temperature control and dust collection processes, where the temperature of furnace gas produced by chlorination is controlled, solid dust collector is controlled for collecting dust, and particulates back into the titanium tetrachloride is removed. The method has the advantages of saving energy and improving yield coefficient of titanium tetrachloride.
Description
Technical field
The invention belongs to the titanium tetrachloride production technology, particularly the solid that produces in the titanic chloride production process treatment process of slag of gathering dust.
Background technology:
The chloridized dust collection slag that titanium tetrachloride production produces, after process solid dust-precipitator gathers dust and handles, impurity grits such as the iron trichloride of greater particle size, ferrous chloride, aluminum chloride, carbon are collected, are discharged by the solid dust-precipitator, and the impurity grit that particle diameter is tiny then can not be collected fully by the solid dust-precipitator.Be not collected process gass such as the contaminant particles of getting off and gas titanium tetrachloride and enter subsequent processing together, if to this dust-laden titanium tetrachloride drip washing, condensation, liquefaction, impurity grits such as iron trichloride, ferrous chloride, aluminum chloride, carbon will enter titanium tetrachloride liquid, form the muddy titanium tetrachloride.The dust-laden titanium tetrachloride is in carrying out condensation, liquefaction processing process, and grit will precipitate, deposit at pipeline, and therefore last blocking pipe must deviate from the solid grit in the titanium tetrachloride.These grits are collected, removed to domestic general method for dust removal by crude titanic chloride is filtered.The result of Chu Liing is like this, and (1) filters still residual a large amount of titanium tetrachloride in the waste residue, reclaims through pervaporation, and still some titanium tetrachloride together discards with filtering waste residue, the titanium tetrachloride yield is reduced, simultaneously wasteful energy; (2) cleaning, during the washing and filtering slag, volatilization and hydrolysis take place in titanium tetrachloride, produce harmfully to be difficult to the smog of handling again and to consume a large amount of water.(3) filter residue blocking filter in the filtration procedure, strainer need open wide cleaning, the obstruction of the titanyl throw out of titanium tetrachloride and dilute hydrochloric acid, corroded pipeline when producing smog.
Summary of the invention:
For the titanium tetrachloride yield that solves existing method existence reduces, wasteful energy of while and water, the problem of obstruction, corrosion pipeline proposes following technical scheme.
The present invention is achieved in that
The gather dust liquid phase collecting method of slag of titanium tetrachloride solid, its special character is that the titanium tetrachloride gases that contains iron trichloride, ferrous chloride, aluminum chloride, carbon micronic dust from furnace gas temperature control, dedusting operation enters the liquid phase dust-precipitator from the tower upper side of gathering dust, with spray liquid titanium tetrachloride and mix, cool off, enter connectivity slot together; Another tower that gathers dust sprays the liquid titanium tetrachloride of getting off, and further the dust-laden titanium tetrachloride cools off, washs in the connectivity slot to entering; Iron trichloride, ferrous chloride, aluminum chloride, carbon micronic dust enter titanium tetrachloride mud circulation jar with liquid titanium tetrachloride, the titanium tetrachloride gases that does not contain micronic dust after the purification enters the drip washing operation from another tower top of gathering dust, dust-laden titanium tetrachloride in the titanium tetrachloride mud circulation jar, afterwards a part enters the cooling of liquid phase dust-precipitator spray, another part returns temperature control, dedusting operation to be delivered to the interchanger cooling by slush pump under the liquid, carry out furnace gas temperature control to the chlorination generation, the grit that returns in the titanium tetrachloride is removed in the dedusting of control solid dust-precipitator simultaneously.
In the aforesaid method, dust-laden titanium tetrachloride in the titanium tetrachloride mud circulation jar, being delivered to interchanger cooling back 70%～98% by slush pump under the liquid enters liquid phase dust-precipitator spray cooling, 2%～30% and returns temperature control, dedusting operation, carry out furnace gas temperature control to the chlorination generation, the grit that returns in the titanium tetrachloride is removed in the dedusting of control solid dust-precipitator simultaneously.
In the aforesaid method, the dust-laden titanium tetrachloride gases temperature that enters the liquid phase dust-precipitator is 136 ℃～280 ℃, and the titanium tetrachloride temperature after the interchanger heat exchange is 50 ℃～100 ℃, and dust-laden liquid titanium tetrachloride temperature is 60 ℃～120 ℃ in the titanium tetrachloride mud circulation jar.The gaseous titanium tetrachloride amount that cools down is not more than the titanium tetrachloride amount of returning temperature control, dedusting operation.
Iron trichloride, ferrous chloride, aluminum chloride, carbon micronic dust enter the liquid phase dust-precipitator, through titanium tetrachloride spray, condensation, cleaning function, enter liquid titanium tetrachloride, and are collected in the titanium tetrachloride mud circulation jar.Titanium tetrachloride mud is through the interchanger cooling, and 70%～98% is used for spray, cooling, the temperature control of liquid phase dust-precipitator; 2%～30% is used to return furnace gas temperature control, dedusting operation, carries out furnace gas temperature control, the dedusting of solid dust-precipitator, and the grit that returns in the titanium tetrachloride is removed in the solid dust-precipitator.In the liquid phase dust-precipitator through after the drip washing, clean titanium tetrachloride enters the drip washing operation, realizes the solid liquid phase of the slag processing intent of gathering dust of gathering dust.
The equipment of realizing aforesaid method comprises slush pump under titanium tetrachloride mud circulation jar, liquid phase dust-precipitator, spray equipment, interchanger, the liquid.The liquid phase dust-precipitator is made up of gather dust tower and the connectivity slot of two parallel connections, and the bottom of two towers that gather dust links to each other with connectivity slot, and the top of tower that gathers dust is equipped with spray equipment.
The present invention has following advantage and effect
(1) realized that chlorination is with the autonomous temperature control dedusting of the liquid phase of titanium tetrachloride effusion micronic dust, separation and removal; Cancelled filtration, evaporation, cleaning technology and the equipment of conventional processes, shortened technology, conserve energy 10%～20% improves titanium tetrachloride yield 2%～5%.
(2) equipment that changed traditional filtering, evaporation, cleaning frequently dismantle, the intermittent operation mode, realized the continuous operation of equipment closed operation, front and back technology organic connection.
(3) equipment closed operation has been avoided at the scene dismounting, cleaning equipment, has been eliminated the possibility that produces titanium tetrachloride smog, has improved production environment.
Description of drawings
Accompanying drawing is the device systems figure that realizes present method.
Embodiment
Narrate embodiment with reference to the accompanying drawings.
Realize that the gather dust equipment of liquid phase collecting method of slag of titanium tetrachloride solid is made of slush pump 5 under titanium tetrachloride mud circulation jar 1, liquid phase dust-precipitator 2, spray equipment 3, interchanger 4, the liquid.Liquid phase dust-precipitator 2 by two parallel connections gather dust tower 2.1 and 2.2 and connectivity slot 2.3 form, the bottom of two towers that gather dust links to each other with connectivity slot 2.3, the top of tower inboard of gathering dust is equipped with spray equipment 3.Slush pump 5 under the liquid is installed in the titanium tetrachloride mud circulation jar 1, and through interchanger 4, some is sprayed in the tower that gathers dust by spray equipment 3 to liquid phase dust-precipitator 2 the suction of the titanium tetrachloride in the titanium tetrachloride mud circulation jar 1 for it; Another partly returns a temperature control, dedusting operation.Interchanger 4 adopts double-pipe exchangers, is used for the titanium tetrachloride liquid that slush pump 5 is carried under the cooling fluid.
The gather dust liquid phase collecting method of slag of titanium tetrachloride solid, its special character is that the titanium tetrachloride gases that contains iron trichloride, ferrous chloride, aluminum chloride, carbon micronic dust from furnace gas temperature control, dedusting operation enters liquid phase dust-precipitator 2 from tower 2.1 upper side of gathering dust, with spray liquid titanium tetrachloride and mix, cool off, enter connectivity slot 2.3 together; Another liquid titanium tetrachloride that tower 2.2 sprays of gathering dust, further the dust-laden titanium tetrachloride cools off, washs in the connectivity slot 2.3 to entering; Iron trichloride, ferrous chloride, aluminum chloride, carbon micronic dust enter titanium tetrachloride mud circulation jar 1 with liquid titanium tetrachloride, the titanium tetrachloride gases that does not contain micronic dust after the purification enters the drip washing operation from tower 2.2 tops of gathering dust, dust-laden titanium tetrachloride in the titanium tetrachloride mud circulation jar 1, being delivered to interchanger 4 cooling back 70%～98% by slush pump under the liquid 5 enters liquid phase dust-precipitator 2 spray coolings, 2%～30% and returns temperature control, dedusting operation, carry out furnace gas temperature control to the chlorination generation, the grit that returns in the titanium tetrachloride is removed in the dedusting of control solid dust-precipitator simultaneously.
In the aforesaid method, enter 136 ℃～280 ℃ of the dust-laden titanium tetrachloride gases temperature of liquid phase dust-precipitator, 50 ℃～100 ℃ of titanium tetrachloride temperature after the interchanger heat exchange, dust-laden liquid titanium tetrachloride temperature is 60 ℃～120 ℃ in the titanium tetrachloride mud circulation jar, and the gaseous titanium tetrachloride amount that cools down is not more than the titanium tetrachloride amount of returning temperature control, dedusting operation.
Claims (3)
1, the titanium tetrachloride solid liquid phase collecting method of slag that gathers dust, it is characterized in that entering the liquid phase dust-precipitator from the tower upper side of gathering dust from the titanium tetrachloride gases that contains iron trichloride, ferrous chloride, aluminum chloride, carbon micronic dust of furnace gas temperature control, dedusting operation, with spray liquid titanium tetrachloride and mix, cool off, enter connectivity slot together; Another tower that gathers dust sprays the liquid titanium tetrachloride of getting off, and further the dust-laden titanium tetrachloride cools off, washs in the connectivity slot to entering; Iron trichloride, ferrous chloride, aluminum chloride, carbon micronic dust enter titanium tetrachloride mud circulation jar with liquid titanium tetrachloride, the titanium tetrachloride gases that does not contain micronic dust after the purification enters the drip washing operation from another tower top of gathering dust, dust-laden titanium tetrachloride in the titanium tetrachloride mud circulation jar, afterwards a part enters the cooling of liquid phase dust-precipitator spray, another part returns temperature control, dedusting operation to be delivered to the interchanger cooling by slush pump under the liquid, carry out furnace gas temperature control to the chlorination generation, the grit that returns in the titanium tetrachloride is removed in the dedusting of control solid dust-precipitator simultaneously.
2, according to the gather dust liquid phase collecting method of slag of the said titanium tetrachloride solid of claim 1, it is characterized in that the dust-laden titanium tetrachloride in the titanium tetrachloride mud circulation jar, being delivered to interchanger cooling back 70%～98% by slush pump under the liquid enters liquid phase dust-precipitator spray cooling, 2%～30% and returns temperature control, dedusting operation, carry out furnace gas temperature control to the chlorination generation, the grit that returns in the titanium tetrachloride is removed in the dedusting of control solid dust-precipitator simultaneously.
3, according to the gather dust liquid phase collecting method of slag of claim 1 or 2 said titanium tetrachloride solids, the dust-laden titanium tetrachloride gases temperature that it is characterized in that entering the liquid phase dust-precipitator is 136 ℃～280 ℃, titanium tetrachloride temperature after the interchanger heat exchange is 50 ℃～100 ℃, and dust-laden liquid titanium tetrachloride temperature is 60 ℃～120 ℃ in the titanium tetrachloride mud circulation jar.
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| CN2008102289222A CN101423246B (en) | 2008-11-20 | 2008-11-20 | Liquid phase dust collection method of titanic chloride solid dust collection |
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| CN2008102289222A CN101423246B (en) | 2008-11-20 | 2008-11-20 | Liquid phase dust collection method of titanic chloride solid dust collection |
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| CN101423246B CN101423246B (en) | 2010-08-25 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103143220A (en) * | 2013-03-15 | 2013-06-12 | 金川集团股份有限公司 | Wet dust removal device and technique for titanium tetrachloride smoke |
| CN103449513A (en) * | 2012-06-05 | 2013-12-18 | 沈阳铝镁设计研究院有限公司 | Titanium tetrachloride spray washer and washing method |
| CN103508488A (en) * | 2012-06-28 | 2014-01-15 | 沈阳铝镁设计研究院有限公司 | TiCl4 (titanium tetrachloride) drop catcher |
| CN106586962A (en) * | 2016-11-23 | 2017-04-26 | 昆明理工大学 | Method for recycling hydrochloric acid through vapor neutral hydrolysis of titanium tetrachloride dust collection residues |
| CN111517365A (en) * | 2020-06-10 | 2020-08-11 | 攀钢集团攀枝花钢铁研究院有限公司 | Titanium tetrachloride production method and system |
-
2008
- 2008-11-20 CN CN2008102289222A patent/CN101423246B/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103449513A (en) * | 2012-06-05 | 2013-12-18 | 沈阳铝镁设计研究院有限公司 | Titanium tetrachloride spray washer and washing method |
| CN103449513B (en) * | 2012-06-05 | 2015-02-18 | 沈阳铝镁设计研究院有限公司 | Titanium tetrachloride spray washer and washing method |
| CN103508488A (en) * | 2012-06-28 | 2014-01-15 | 沈阳铝镁设计研究院有限公司 | TiCl4 (titanium tetrachloride) drop catcher |
| CN103143220A (en) * | 2013-03-15 | 2013-06-12 | 金川集团股份有限公司 | Wet dust removal device and technique for titanium tetrachloride smoke |
| CN103143220B (en) * | 2013-03-15 | 2015-04-15 | 金川集团股份有限公司 | Wet dust removal device and technique for titanium tetrachloride smoke |
| CN106586962A (en) * | 2016-11-23 | 2017-04-26 | 昆明理工大学 | Method for recycling hydrochloric acid through vapor neutral hydrolysis of titanium tetrachloride dust collection residues |
| CN111517365A (en) * | 2020-06-10 | 2020-08-11 | 攀钢集团攀枝花钢铁研究院有限公司 | Titanium tetrachloride production method and system |
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| CN101423246B (en) | 2010-08-25 |
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Owner name: JINZHOU JINYE CHEMICAL METALLURGICAL TECHNOLOGY CO Free format text: FORMER NAME: JINZHOU JINYE CHEMICAL METALLURGICAL TECHNOLOGY CONSULTING CO., LTD. |
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Address after: 401 room 27, No. 121013, Yu Jie street, hi tech Development Zone, Liaoning, Jinzhou Patentee after: Jinzhou Jinye Metallurgical Technology Co. Ltd. Address before: 302 room 29, No. 121013, Yu Jie street, hi tech Development Zone, Liaoning, Jinzhou Patentee before: Jinzhou Jinye Chemical Metallurgical Technology Consulting Co., Ltd. |