CN105858718A - Novel bottom structure of fluidized bed chlorinator without perforated plate - Google Patents
Novel bottom structure of fluidized bed chlorinator without perforated plate Download PDFInfo
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- CN105858718A CN105858718A CN201610381129.0A CN201610381129A CN105858718A CN 105858718 A CN105858718 A CN 105858718A CN 201610381129 A CN201610381129 A CN 201610381129A CN 105858718 A CN105858718 A CN 105858718A
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- fluidized bed
- perforated
- polycrystalline substance
- bed chlorinator
- shell
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G23/00—Compounds of titanium
- C01G23/02—Halides of titanium
- C01G23/022—Titanium tetrachloride
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- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
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- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
The invention discloses a novel bottom surface of a fluidized bed chlorinator without a perforated plate. The novel bottom structure comprises a shell of a funnel shape, wherein a slag outlet is formed at the bottom of the shell; a lining layer is arranged on the inner side surface of the shell and made from a high-temperature resistant and anti-corrosion material; a circular spray pipe is fixed on the shell in a sealed penetration manner. The novel bottom structure is characterized in that the end surface of an air nozzle of the circular spray pipe is of a vertical circular shape; the air nozzle is provided with an exposure part exposed outside the lining layer; and the lower end of the exposure part is level with the surface of the lining layer. The bottom surface of the fluidized bed chlorinator without the perforated plate disclosed by the invention has the advantages of simple structure and skillful design, and can effectively relieve and even eliminate influence of a viscous material on the blockage of a gas distributor to improve gas distribution in the chlorinator; and moreover, the shutdown frequency and time are reduced, the single working time of the fluidized bed chlorinator is prolonged, and continuous efficient production of fluidizing chlorination is promoted.
Description
Technical field
The invention belongs to titanium tetrachloride preparing technical field, be specifically related to a kind of Novel fluidized bed chlorinator without perforated-plate polycrystalline substance.
Background technology
Titanium, as preferable structural material corrosion resistant material, is widely used in the industries such as Aero-Space, naval vessel, weapons, chemical industry, metallurgy, electric power, ocean engineering, medicine, automobile sports goods, building[1,2].Titanium dioxide is as having the Chinese white of premium properties, for fields such as coating, ink, plastics, papermaking, chemical fibre and rubber[3,4].Titanium sponge and titanium dioxide are by TiCl4Produce, therefore TiCl4It it is the important intermediate raw material of Ti industry production.
Fluidizing chlorination method is to produce TiCl both at home and abroad4Prevailing technology, fluidizing chlorination method is divided into has sieve plate fluidizing chlorination method (ω (CaO+MgO) ＜ 1.5%) and without sieve plate fluidizing chlorination method (ω (CaO+MgO) ＜ 2.5%～3.0%)[5,6].Wherein, without the application of sieve plate fluidizing chlorination technique, the scope of titanium material application is expanded.At present, domestic main application contains the titanium material of higher calcium and magnesium impurity (CaO and content of MgO 2.0%～3.0%), the fluidized bed chlorinator without perforated-plate of the most commonly used lower dreg discharging[7].Again from chlorination thermodynamics, in titanium slag, each component chlorination order under chlorination temperature (is converted into FeCl for CaO > MnO > FeO2)>MgO>Fe2O3> FeO (is converted into FeCl3)>TiO2>Al2O3>SiO2, CaO and MgO has precedence over TiO2Chlorination[8].The chlorizate CaCl of CaO and MgO2With MgCl2In molten condition under chlorination temperature, it is difficult to volatilize away, along with the carrying out of chlorination, they are cumulative in chlorination bed, make feed particles bond, and deteriorate fluidization situation, the most even block gas distributor, affect chloridating gas distribution, it is impossible to be normally carried out chlorination operation[9,10]。
The polycrystalline substance of existing fluidized bed chlorinator without perforated-plate is mainly provided with circular seam type chlorine gas distributor or air-tube type chlorine gas distributor.Wherein, circular seam type chlorine gas distributor[11]The application of fluidized bed chlorinator without perforated-plate, to some extent solve furnace gas to be evenly distributed sex chromosome mosaicism, but in chlorination process, in binding material dropping process bottom fluidized bed chlorinator without perforated-plate, some meetings hang over the lower limb of gas distributor or fall in distributor, cause blocking time serious, thus affect being normally carried out without sieve plate fluidizing chlorination technique.Liu Yuming etc.[12]Proposing a kind of fluidized bed chlorinator without perforated-plate gas distributor and be air-tube type chlorine gas distributor, this chlorine gas distributor ensure that the uniformity of the chlorine distribution being passed through, but is difficult to the technical problem overcoming air pipe outlet to block equally.
Based on this, applicant consider to design a kind of can the Novel fluidized bed chlorinator without perforated-plate polycrystalline substance of effective pre-function of preventing material from being bound blocking gas distributor.
Bibliography:
[1] Hu Qingxiong. the application of titanium and prospect forecast [J]. Ti industry is in progress, 2003, (Z1): 11-15.
[2] Guo Jianjun, He Yu. the new opplication of titanium and prospect [J]. World Nonferrous Metals, 2010, (01): 66-69.
[3] Chen Chaohua. the performance of titanium dioxide and the application [J] in coating thereof. modern coatings and application, 2004, (03): 24-26.
[4] Song Aijun. the application of domestic titanium dioxide, production technology and market [J]. China's chlor-alkali, 2005, (08): 18-20.
[5] Lu Hedong, practices vast stretch of wooded country. without sieve plate fluidizing chlorination method titanium tetrachloride production technology [J]. and chlorine industry, 2009, (09): 26-29+34.
[6] Wen Wangguang. without sieve plate fluid bed Study on Mathematic Model and commercial Application [J] thereof. Ti industry is in progress, 2001, (05): 25-29.
[7] Deng Guozhu. China's titanium sponge production technical progress and problems faced [J]. steel vanadium titanium, 2011, (04): 1-5.
[8] occupy the hall spring, sternly determine fine gold, Li Xiangyang etc. the application [J] in fused salt chlorimation of the high titanium slag carburizing chlorination thermodynamics of reactions. steel vanadium titanium, 2010, (02): 32-36.
[9] Wang Yafeng, Li Junfeng, Zhang Bingbing. high titanium slag fluidizing chlorination prepares titanium tetrachloride technical study [J]. Henan science and technology, 2014, (02): 36-37.
[10] Ling Huchanghong. Yunnan high titanium slag fluidizing chlorination produces thick TiCl_4 possibility research [J]. and Ti industry is in progress, 2002, (02): 40-42.
[11] Wang Jun, Li Liang, model Xinping etc. high calcium magnesium titanium slag studies [J] without sieve plate fluidizing chlorination commerical test. steel vanadium titanium, 2013, (04): 1-6.
[12] Liu Yuming, Wang Wei, Qian Xin. the research and development of the large-scale technology of fluidizing chlorination without sieve plate and equipment and application [J]. Ti industry is in progress, 2014, (01): 35-37..
Summary of the invention
For above-mentioned the deficiencies in the prior art, the technical problem to be solved is: how to provide a kind of can effective pre-function of preventing material from being bound blocking gas distributor Novel fluidized bed chlorinator without perforated-plate polycrystalline substance.
In order to solve above-mentioned technical problem, present invention employs following technical scheme:
A kind of Novel fluidized bed chlorinator without perforated-plate polycrystalline substance, is funnelform shell including profile, and the bottom of described shell has slag-drip opening, and the medial surface of described shell has inner liner, and this inner liner is prepared by the material of fire resistant anticorrosive；Seal to run through on described shell and be fixedly installed circular nozzle, it is characterized in that: the end surface shape of the puff prot of described circular nozzle is vertical circle, this puff prot have be exposed at outside described inner liner expose portion, described in expose portion the surface of lower end and described inner liner flush.
After using above-mentioned Novel fluidized bed chlorinator without perforated-plate polycrystalline substance, in chlorination process, the slag (or goo of chlorination reaction generation) fallen falls in the tapered slope of polycrystalline substance, and wherein overwhelming majority slags face down along this tapered slope and tumble to slag-drip opening discharge；Few part slag tumbles to the puff prot upper end of circular nozzle along above-mentioned tapered slope, curve slope along puff prot both sides falls again, therefore puff prot just to sentence and surrounding be difficult to pile up slag, gas distributor (i.e. circular nozzle) can be blocked by effective pre-function of preventing material from being bound, so advantageously reduce blowing out number of times and time, extend the single working time of boiling chloridizing furnace, the beneficially continuous prodution of fluidizing chlorination.
Meanwhile, the space that puff prot takies within this polycrystalline substance is minimum, so, not only will not stop the gas flowing within polycrystalline substance, also make within polycrystalline substance can the space of supplied gas flowing maximum, therefore enable to the gas within polycrystalline substance and can more uniformly be distributed fully so that chlorination reaction can be carried out the most more completely.
Further, between the described liner surface that the upper end of described puff prot is adjacent with above it, be fixedly installed a landslide, the projection of described landslide in the vertical direction can cover described in expose the horizontal component on top, portion.
Though because the horizontal component area of puff prot upper end is less, but still being easier to pile up the slag of whereabouts；Therefore after being provided with above-mentioned landslide, this landslide can make to fall to its quick landing of domatic slag, therefore can prevent the slag at because of puff prot from piling up and the situation of the gas distributor that results in blockage further.
Further, described landslide is domatic for inner concave shape arcwall face.
So, the landslide of said structure enables to the acceleration moved to the direction away from puff prot by the slag of this landslide landing with maximum, therefore can make the slag via this landslide landing can be further from the gas outlet of puff prot, while playing more preferable anti-clogging effect；Also the ejection process that can make puff prot chlorine is more smoothly, thus the distribution of chlorine in optimizing boiling chloridizing furnace, promote chlorination reaction preferably to carry out.
Further, described circular nozzle be along the circumferencial direction of described shell be uniformly arranged multiple.
The setting of multiple circular nozzles, it is possible to increase chlorine intake in boiling chloridizing furnace in the unit interval, and then improve chlorination reaction velocity, improve TiCl4Production efficiency.
Further, the inlet end of described circular nozzle is sealedly connected with flow control valve.
The setting of above-mentioned flow control valve, it is possible to control to enter the amount of chlorine of boiling chloridizing furnace more conveniently, thus chlorination reaction process is regulated and controled.Additionally, after flow control valve is set so that this polycrystalline substance can regulate according to the throughput needed for the boiling chloridizing furnace of various body of heater sizes, therefore can preferably adapt to the boiling chloridizing furnace of various body of heater size, has more preferably versatility.
As preferably, the internal diameter of described circular nozzle is 20mm to 30mm.
In the case of the circular nozzle of above-mentioned size ensure that applicable chlorine throughput so that the surface area being exposed at puff prot outside inner liner is less, it is better protected from the accumulation on the surface of puff prot of the slag that falls, therefore there is more preferable anti-clogging effect.
Further, the upper surface of described inner liner is formed with a circle annular boss along the circumferencial direction epirelief of described shell.
The setting of above-mentioned annular boss so that it is can extend into inside fluidized bed furnace shaft, plays connection shaft, protection flange and the effect of following furnace wall brick.
As preferably, described circular nozzle is spaced at least two groups in the short transverse of described shell.
So, it is possible to preferably meet the demand of chlorine in boiling chloridizing furnace.
As preferably, the most spaced at least two group circular nozzle being projected as in same level are interspersed.
The setting of said structure, can make more uniformly spreading of chlorine in boiling chloridizing furnace, thus help chlorination reaction preferably to carry out.
Fluidized bed chlorinator without perforated-plate polycrystalline substance of the present invention has simple in construction, designs advantage cleverly, it is possible to effectively alleviate until eliminating the impact that gas distributor is blocked by viscous material, improves furnace gas distribution；It is beneficial to reduce blowing out number of times and time, extends the continuous high-efficient of the single working time of boiling chloridizing furnace, beneficially fluidizing chlorination and produce.
Accompanying drawing explanation
Fig. 1 is the structural representation of fluidized bed chlorinator without perforated-plate polycrystalline substance of the present invention.
Fig. 2 is enlarged drawing at A in Fig. 1.
Fig. 3 is the enlarged drawing of another embodiment at A in Fig. 1.
Figure is labeled as:
1 slag-drip opening；
2 inner liners；
3 shells；
4 annular boss；
5 circular nozzles；
6 flow control valves；
7 landslides；
Passage is blown on 8 sides；
9 strip grooves.
Detailed description of the invention
The present invention is described in further detail below in conjunction with the accompanying drawings.Wherein, the exemplary term such as such as upper and lower, left and right are used for description, it is therefore intended that help reader understanding, and be not intended to limit.
When being embodied as: as shown in Figure 1 to Figure 2, a kind of Novel fluidized bed chlorinator without perforated-plate polycrystalline substance, is funnelform shell 3 including profile, and the bottom of described shell 3 has slag-drip opening 1, the medial surface of described shell 3 has inner liner 2, and this inner liner 2 is prepared by the material of fire resistant anticorrosive；Seal to run through on described shell 3 and be fixedly installed circular nozzle 5, the end surface shape of the puff prot of described circular nozzle 5 is vertical circle, this puff prot have be exposed at outside described inner liner 2 expose portion, described in expose portion the surface of lower end and described inner liner 2 flush.
During enforcement, preferably this puff prot just axial line to described shell 3.So, puff prot the chlorine gas flow sprayed will not be internally formed eddy flow in bottom construction, the more conducively chlorine abundant distribution in polycrystalline substance.
Wherein, between described inner liner 2 surface that the upper end of described puff prot is adjacent with above it, be fixedly installed a landslide 7, the projection of described landslide 7 in the vertical direction can cover described in expose the horizontal component on top, portion.
Wherein, described landslide 7 is domatic for inner concave shape arcwall face.
Wherein, described circular nozzle 5 is 6 be uniformly arranged along the circumferencial direction of described shell 3.
Wherein, the inlet end of described circular nozzle 5 is sealedly connected with flow control valve 6.
Wherein, the internal diameter of described circular nozzle 5 is 20mm to 30mm.
Wherein, the upper surface of described inner liner 2 is formed with a circle annular boss 4 along the circumferencial direction epirelief of described shell 3.
Wherein, described circular nozzle 5 is in the short transverse of described shell 3 spaced two groups.
Wherein, the most spaced at least two group circular nozzle 5 being projected as in same level are interspersed, and offset one from another 30 degree.Thus can effectively improve the gas distribution in boiling chloridizing furnace, obtain the chloridating gas distribution more uniformly spread.
After using above-mentioned Novel fluidized bed chlorinator without perforated-plate polycrystalline substance, in chlorination process, the slag (or chlorination reaction produce goo) fallen falls in the tapered slope of polycrystalline substance, and wherein overwhelming majority slags face down along this tapered slope to tumble to slag-drip opening 1 and discharge；Few part slag tumbles to the puff prot upper end of circular nozzle 5 along above-mentioned tapered slope, curve slope along puff prot both sides falls again, therefore puff prot just to sentence and surrounding be difficult to pile up slag, gas distributor (i.e. circular nozzle 5) can be blocked by effective pre-function of preventing material from being bound, so advantageously reduce blowing out number of times and time, extend the single working time of boiling chloridizing furnace, the beneficially continuous prodution of fluidizing chlorination.
Meanwhile, the space that puff prot takies within this polycrystalline substance is minimum, so, not only will not stop the gas flowing within polycrystalline substance, also make within polycrystalline substance can the space of supplied gas flowing maximum, therefore enable to the gas within polycrystalline substance and can more uniformly be distributed fully so that chlorination reaction can be carried out the most more completely.
Separately when implementing, on described circular nozzle 5 at neighbouring puff prot and described landslide domatic between the most through be provided with a side and blow passage 8.So, side is blown the setting of passage 8 and the chlorine in circular nozzle 5 can be made thus to spray, and then can be used in accelerating to blow down the slag falling to landslide；Additionally, the distribution of chlorine in boiling chloridizing furnace can also be optimized by blowing the chlorine that passage 8 blows out by this so that more uniformly spreading fully of chlorine, thus chlorination reaction is promoted preferably to carry out.
Further, described side is blown passage 8 and is gradually increased from top to bottom.So, by this, blow the opening minimum being positioned at domatic place on passage 8, define reducing not only by above-mentioned minimal openings, and then improve the flow velocity through this reducing blowout chlorine, increase the chlorine blowing force blowing down slag；Additionally, even if the minimal openings having slag to blow passage 8 from side falls into, also it is consistently less than, because of the size of this slag, the size that the passway of passage 8 is blown on side, therefore do not easily cause the blocking blowing passage 8 by this, and the slag fallen into can drop down onto circular nozzle 5 inside, finally blown out from puff prot by the chlorine within circular nozzle 5.
Further, on described circular nozzle 5, neighbouring side is blown and is provided with strip groove 9 at passage 8, this strip groove 9 the most gradually deepens (one end at puff prot place is " afterwards " on circular nozzle 5), and the lower end that passage 8 is blown with described side in the rear end of this strip groove 9 connects.The setting of above-mentioned strip groove 9 can guide the chlorine of circular nozzle 5 preferably to flow into side to blow passage 8, prevents because in puff prot, chlorine flow velocity is excessive and then forms the situation of negative pressure in passage 8 is blown on side, thus promotes side to blow passage 8 and preferably realize its function.
Below it is only the preferred embodiment of the present invention; need to point out be; for those skilled in the art on the premise of without departing from the technical program, it is also possible to make some deformation and improvement, the technical scheme of above-mentioned deformation and improvement should be contemplated as falling within the scope that this application claims equally.
Claims (9)
1. a Novel fluidized bed chlorinator without perforated-plate polycrystalline substance, is funnelform shell including profile, and the bottom of described shell has slag-drip opening, and the medial surface of described shell has inner liner, and this inner liner is prepared by the material of fire resistant anticorrosive；Seal to run through on described shell and be fixedly installed circular nozzle, it is characterized in that: the end surface shape of the puff prot of described circular nozzle is vertical circle, this puff prot have be exposed at outside described inner liner expose portion, described in expose portion the surface of lower end and described inner liner flush.
Novel fluidized bed chlorinator without perforated-plate polycrystalline substance the most according to claim 1, it is characterized in that: between the described liner surface that the upper end of described puff prot is adjacent with above it, be fixedly installed a landslide, the projection of described landslide in the vertical direction can cover described in expose the horizontal component on top, portion.
Novel fluidized bed chlorinator without perforated-plate polycrystalline substance the most according to claim 2, it is characterised in that: described landslide domatic for inner concave shape arcwall face.
Novel fluidized bed chlorinator without perforated-plate polycrystalline substance the most according to claim 1, it is characterised in that: described circular nozzle be along the circumferencial direction of described shell be uniformly arranged multiple.
Novel fluidized bed chlorinator without perforated-plate polycrystalline substance the most according to claim 1, it is characterised in that: the inlet end of described circular nozzle is sealedly connected with flow control valve.
Novel fluidized bed chlorinator without perforated-plate polycrystalline substance the most according to claim 1, it is characterised in that: the internal diameter of described circular nozzle is 20mm to 30mm.
Novel fluidized bed chlorinator without perforated-plate polycrystalline substance the most according to claim 1, it is characterised in that: the upper surface of described inner liner is formed with a circle annular boss along the circumferencial direction epirelief of described shell.
Novel fluidized bed chlorinator without perforated-plate polycrystalline substance the most according to claim 1, it is characterised in that: described circular nozzle is spaced at least two groups in the short transverse of described shell.
Novel fluidized bed chlorinator without perforated-plate polycrystalline substance the most according to claim 8, it is characterised in that: the most spaced at least two group circular nozzle being projected as in same level are interspersed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610381129.0A CN105858718B (en) | 2016-06-01 | 2016-06-01 | A kind of Novel fluidized bed chlorinator without perforated-plate polycrystalline substance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610381129.0A CN105858718B (en) | 2016-06-01 | 2016-06-01 | A kind of Novel fluidized bed chlorinator without perforated-plate polycrystalline substance |
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| CN105858718A true CN105858718A (en) | 2016-08-17 |
| CN105858718B CN105858718B (en) | 2017-08-29 |
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| CN201610381129.0A Expired - Fee Related CN105858718B (en) | 2016-06-01 | 2016-06-01 | A kind of Novel fluidized bed chlorinator without perforated-plate polycrystalline substance |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105460925A (en) * | 2015-12-28 | 2016-04-06 | 神华集团有限责任公司 | Graphitizing furnace liner structure |
| CN110526287A (en) * | 2019-08-30 | 2019-12-03 | 河南佰利联新材料有限公司 | A kind of fluidized bed chlorinator without perforated-plate |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1919442A (en) * | 2006-08-01 | 2007-02-28 | 遵义钛业股份有限公司 | Multi-laminar flow cribriform-plate-free boiling chloridization furnace |
| CN2923669Y (en) * | 2006-07-17 | 2007-07-18 | 贵阳铝镁设计研究院 | Sieve-board-free boiling chloring furnace |
| CN101746815A (en) * | 2008-12-05 | 2010-06-23 | 贵阳铝镁设计研究院 | Boiling chlorination furnace for preparing titanium tetrachloride by using natural rutile |
| CN202379758U (en) * | 2011-12-22 | 2012-08-15 | 唐山天赫钛业有限公司 | Furnace hearth device for fluidized bed chlorinator without perforated-plate |
-
2016
- 2016-06-01 CN CN201610381129.0A patent/CN105858718B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2923669Y (en) * | 2006-07-17 | 2007-07-18 | 贵阳铝镁设计研究院 | Sieve-board-free boiling chloring furnace |
| CN1919442A (en) * | 2006-08-01 | 2007-02-28 | 遵义钛业股份有限公司 | Multi-laminar flow cribriform-plate-free boiling chloridization furnace |
| CN101746815A (en) * | 2008-12-05 | 2010-06-23 | 贵阳铝镁设计研究院 | Boiling chlorination furnace for preparing titanium tetrachloride by using natural rutile |
| CN202379758U (en) * | 2011-12-22 | 2012-08-15 | 唐山天赫钛业有限公司 | Furnace hearth device for fluidized bed chlorinator without perforated-plate |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105460925A (en) * | 2015-12-28 | 2016-04-06 | 神华集团有限责任公司 | Graphitizing furnace liner structure |
| CN110526287A (en) * | 2019-08-30 | 2019-12-03 | 河南佰利联新材料有限公司 | A kind of fluidized bed chlorinator without perforated-plate |
| CN110526287B (en) * | 2019-08-30 | 2022-07-29 | 河南佰利联新材料有限公司 | Sieve plate-free fluidized bed chlorination furnace |
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