CN113786780A - Device for producing titanium dioxide by chlorination process - Google Patents
Device for producing titanium dioxide by chlorination process Download PDFInfo
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- CN113786780A CN113786780A CN202111290792.7A CN202111290792A CN113786780A CN 113786780 A CN113786780 A CN 113786780A CN 202111290792 A CN202111290792 A CN 202111290792A CN 113786780 A CN113786780 A CN 113786780A
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- cover body
- tank body
- fixedly arranged
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- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 238000005660 chlorination reaction Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 28
- 239000004408 titanium dioxide Substances 0.000 title claims abstract description 19
- 230000008569 process Effects 0.000 title claims description 15
- 238000010438 heat treatment Methods 0.000 claims abstract description 27
- 238000006243 chemical reaction Methods 0.000 claims abstract description 23
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000000460 chlorine Substances 0.000 claims abstract description 16
- 229910052801 chlorine Inorganic materials 0.000 claims abstract description 15
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 238000006073 displacement reaction Methods 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910044991 metal oxide Inorganic materials 0.000 abstract description 9
- 150000004706 metal oxides Chemical class 0.000 abstract description 9
- 229910052751 metal Inorganic materials 0.000 abstract description 7
- 239000002184 metal Substances 0.000 abstract description 7
- 239000007787 solid Substances 0.000 abstract description 7
- 238000007599 discharging Methods 0.000 abstract description 6
- 239000000376 reactant Substances 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 19
- 239000007789 gas Substances 0.000 description 10
- 238000009835 boiling Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 239000000843 powder Substances 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 150000001805 chlorine compounds Chemical class 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- VXEGSRKPIUDPQT-UHFFFAOYSA-N 4-[4-(4-methoxyphenyl)piperazin-1-yl]aniline Chemical compound C1=CC(OC)=CC=C1N1CCN(C=2C=CC(N)=CC=2)CC1 VXEGSRKPIUDPQT-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- -1 alum Chemical compound 0.000 description 1
- 229940037003 alum Drugs 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910001902 chlorine oxide Inorganic materials 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002006 petroleum coke Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000005049 silicon tetrachloride Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
- B01J8/1872—Details of the fluidised bed reactor
-
- 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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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
The invention relates to the technical field of chemical equipment, in particular to a device for producing titanium dioxide by a chlorination method, which comprises a tank body, wherein an annular heating mechanism for heating the tank body is arranged on the outer wall of the middle part of the tank body, a cover body is fixedly arranged at the upper end of the tank body, an oxide feeding pipe is fixedly arranged on the top surface of the cover body, a plurality of discharging pipes are fixedly connected onto the outer wall of the cover body, a cover body is fixedly arranged inside the cover body, a movable cavity is formed inside the tank body, a fixing ring is also fixedly arranged in the middle of the movable cavity, a reaction plate assembly is movably connected to the upper side of the fixing ring, and an air inlet assembly is fixedly arranged on the bottom surface of the movable cavity. Through the solid fixed ring that sets up at the internal portion of jar to and the reaction plate subassembly, can cause the turbulent flow of the reaction zone in the jar body, and this turbulent flow can make chlorine fully react with the powdered oxide of metal, and the effectual reaction efficiency who improves metal oxide and chlorine improves reactant output.
Description
Technical Field
The invention relates to the technical field of chemical equipment, in particular to a device for producing titanium dioxide by a chlorination method.
Background
Titanium dioxide is an important inorganic chemical pigment, and the main component is titanium dioxide. The production process of titanium dioxide comprises two process routes of a sulfuric acid method and a chlorination method, and the production flow of the chlorination method titanium dioxide mainly comprises three parts: chlorination, oxidation and post-treatment sections, wherein in the chlorination stage, fixed bed chlorination, molten salt chlorination and fluidized bed chlorination technologies are mainly adopted, the fixed bed chlorination process is eliminated, the fluidized bed chlorination process is widely adopted abroad, the fast fluidized bed chlorination technology is still in the development stage at home, the main equipment of the fluidized bed chlorination is a boiling chlorination furnace, titanium-rich materials such as rutile ore or Ganzhi slag and the like are added into the chlorination furnace, the ground materials and petroleum coke with a certain proportion are added into the boiling furnace from the upper part of a boiling layer, chlorine is added from the bottom surface of the boiling furnace, the chlorination reaction is continuously carried out in the boiling furnace, oxides of iron, silicon, alum, calcium, magnesium and other metals are converted into corresponding chlorides, the chlorides leave the chlorination furnace along with gas, and the unreacted solid dust and the non-volatile chlorides are separated from the reaction gas by a cyclone separator, separating out chloride ferric trichloride, condensing and collecting titanium tetrachloride (containing silicon tetrachloride, trichloroxyalum and the like) with low boiling point by using methods of cold titanium tetrachloride spraying and the like, and filtering slurry to obtain crude titanium tetrachloride, which is a chlorination process in the production process of titanium dioxide by adopting a chlorination method.
Disclosure of Invention
Solves the technical problem
Aiming at the defects in the prior art, the invention provides a device for producing titanium dioxide by a chlorination method, which can effectively solve the problems that in the prior art, in the process of producing titanium dioxide by the chlorination method, gas and solid in a fluidized bed furnace cannot be fully contacted with oxides of iron, silicon, vanadium, calcium, magnesium and other metals in the actual chlorination process due to different adding directions of the gas and the solid, so that the products are fewer and the reaction efficiency is lower.
Technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme:
the invention provides a device for producing titanium dioxide by a chlorination method, which comprises a tank body, wherein an annular heating mechanism for heating the tank body is arranged on the outer wall of the middle part of the tank body, a cover body is fixedly arranged at the upper end of the tank body, an oxide feeding pipe is fixedly arranged on the top surface of the cover body, a plurality of discharging pipes are fixedly connected to the outer wall of the cover body, a cover body is fixedly arranged in the cover body, a movable cavity is formed in the tank body, a fixing ring is fixedly arranged in the middle of the movable cavity, a reaction plate assembly is movably connected to the upper side of the fixing ring, an air inlet assembly is fixedly arranged on the bottom surface of the movable cavity, and chlorine is injected into the movable cavity by means of an external pump body and through the air inlet assembly and reacts with oxide.
Further, cyclic annular heating mechanism includes the collar and sets up the heating plate at its inside position, collar fixed mounting is on the outer wall of the jar body, annular groove has been seted up to the inside of collar, fixed mounting has the baffle on the inner wall of annular groove, the heating plate symmetry is provided with two to use the baffle to distribute in annular groove inside as the symmetry axis, fixed mounting has the fixed block on the outer wall that the collar is located the baffle position, fixed mounting has intake pipe and the outlet duct with annular groove intercommunication on the fixed block inner wall, the inner of intake pipe and outlet duct sets up the both sides position at the baffle respectively.
Furthermore, the cover body is of an inverted copper bell-shaped structure, a through hole is formed in the bottom surface of the cover body in a penetrating mode, inclined discharge holes are formed in the inner wall of the cover body in a penetrating mode at equal intervals in an annular mode, the inner end of the discharge pipe is communicated with the movable cavity, and the inner end of the discharge pipe is located on the lower side of the cover body.
Further, gu fixed ring's inside is seted up flutedly, logical groove has been seted up on the bottom surface of recess, gu seted up the ring groove on fixed ring's the upside outer wall, evenly seted up circular type hole on the inner wall in ring groove, the top surface in ring groove is the equidistant spout of having seted up of loop type.
Further, the reaction plate assembly comprises a ventilation plate, the bottom surface of the ventilation plate is in annular equidistant elastic connection with a movable plate, the top surface of the movable plate is fixedly connected with the bottom surface of the ventilation plate through a spring, the bottom surface of the movable plate is fixedly connected with a displacement plate through a connecting rod, the outer wall of the displacement plate is in sliding fit with the inner wall of the circular groove, and the movable plate is located at the upper side position of the fixing ring.
Further, the air inlet assembly comprises a mounting plate fixedly mounted on the inner wall of the movable cavity, a connecting pipe is fixedly mounted on the bottom surface of the mounting plate, a fixing plate is fixedly mounted on the top surface of the mounting plate, a cavity is formed between the fixing plate and the middle of the mounting plate, air outlet holes are uniformly formed in the top surface of the fixing plate and are of an inclined structure, the air outlet holes are communicated with the cavity, and the connecting pipe is communicated with the cavity.
Advantageous effects
Compared with the known public technology, the technical scheme provided by the invention has the following beneficial effects:
according to the invention, the turbulent flow of the reaction area in the tank body can be caused by the fixing ring arranged in the tank body and the reaction plate assembly, and the chlorine can be fully reacted with the metal powder oxide by the turbulent flow, so that the reaction efficiency of the metal oxide and the chlorine is effectively improved, and the yield of reactants is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a schematic view of the overall external structure of a fluidized bed furnace according to the present invention;
FIG. 2 is a schematic diagram of a separating structure of the tank body and the annular heating mechanism according to the present invention;
FIG. 3 is a schematic cross-sectional view of a mounting ring of the present invention;
FIG. 4 is a schematic sectional view of a part of the tank according to the present invention;
FIG. 5 is a schematic view of the overall cross-sectional structure of the can body of the present invention;
FIG. 6 is a schematic view of the overall explosion structure inside the movable chamber of the present invention;
FIG. 7 is a schematic cross-sectional view of an air intake assembly of the present invention;
FIG. 8 is an enlarged view of the structure of FIG. 5A.
The reference numerals in the drawings denote: 1. a tank body; 101. a movable cavity; 2. a mounting ring; 201. an annular groove; 202. a baffle plate; 3. a fixed block; 301. an air inlet pipe; 302. an air outlet pipe; 4. a heating plate; 5. a cover body; 6. an oxide feed pipe; 7. a discharge pipe; 8. a cover body; 801. a through hole; 802. a discharge hole; 9. a fixing ring; 901. a circular hole; 902. a chute; 903. a through groove; 904. a groove; 905. a circular groove; 10. a reaction plate assembly; 1001. a gas permeable plate; 1002. a spring; 11. moving the plate; 1101. a displacement plate; 12. an air intake assembly; 1201. mounting a plate; 1202. a connecting pipe; 13. a fixing plate; 1301. a cavity; 1302. and an air outlet.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The present invention will be further described with reference to the following examples.
Example (b): a device for producing titanium dioxide by a chlorination method comprises a tank body 1, wherein the tank body 1 is arranged in a higher temperature environment to ensure that chlorine and metal oxide can normally react, an annular heating mechanism for heating the tank body 1 is arranged on the outer wall of the middle part of the tank body 1, the annular heating mechanism can heat the tank body 1 or ensure the constant temperature environment of the tank body 1, specifically, the annular heating mechanism comprises a mounting ring 2 and a heating sheet 4 arranged at the inner position of the mounting ring, the heating sheet 4 is connected with an external power supply through a lead, the heating sheet is composed of 4-bit multi-group bending arranged heating wires, after the heating wires are electrified, the heating wires can heat to heat the inside of the tank body 1 or carry out heat preservation treatment on the inside of the tank body 1, the mounting ring 2 is fixedly arranged on the outer wall of the tank body 1, an annular groove 201 is formed in the mounting ring 2, the inner wall of the annular groove 201 is fixedly provided with two baffles 202, the two heating sheets 4 are symmetrically arranged and distributed in the annular groove 201 by taking the baffles 202 as symmetrical axes, the outer wall of the installation ring 2 at the position of the baffles 202 is fixedly provided with a fixed block 3, the inner wall of the fixed block 3 is fixedly provided with an air inlet pipe 301 and an air outlet pipe 302 which are communicated with the annular groove 201, the inner ends of the air inlet pipe 301 and the air outlet pipe 302 are respectively arranged at two sides of the baffles 202, it is worth to say that the air inlet pipe 301 is arranged to be communicated with the outlet end of an external air blower, the air inlet of the air blower is communicated with an external chlorine source, when the arranged chlorine passes through the heating sheets 4, the chlorine can be heated to a certain temperature, is arranged in the middle part of the annular groove 201 in the installation ring 2 and is divided into a non-communicated space by the baffles 202, and because the inner ends of the air inlet pipe 301 and the air outlet pipe 302 are respectively arranged at two sides of the baffles 202, in the using process, when the chlorine gas is input into the tank body 1 through the blower, the chlorine gas enters the annular groove 201 from the air inlet pipe 301, and after the chlorine gas surrounds the tank body 1 for a circle, the chlorine gas can be discharged through the air outlet pipe 302, in the process, the chlorine gas can be heated, in the process, a heat insulation layer with higher temperature can be formed on the outer wall of the tank body 1, the temperature inside the movable cavity 101 in the tank body 1 is ensured, and it is worth explaining that the chlorine gas discharged from the air outlet pipe 302 is input into the movable cavity 101 from the connecting pipe 1202 of the air inlet component 12 arranged on the bottom surface of the tank body 1, and the annular heating mechanism arranged on the outer wall of the tank body 1 vertically reacts with the chlorine gas in the movable cavity 101.
Referring to fig. 4-5, a cover 5 is fixedly installed at the upper end of the tank 1, an oxide feeding pipe 6 is fixedly installed at the top surface of the cover 5, a plurality of discharging pipes 7 are fixedly connected to the outer wall of the cover 5, a cover 8 is fixedly installed inside the cover 5, the cover 8 is an inverted copper bell-shaped structure, a through hole 801 is formed in the bottom surface of the cover 8, inclined discharging holes 802 are formed in the inner wall of the cover 8 at equal intervals in a ring shape, the inner ends of the discharging pipes 7 are communicated with the movable cavity 101, the inner ends of the discharging pipes 7 are located at the lower side position of the cover 8, the cover 5 arranged at the upper side position of the tank 1 can ensure the sealing performance inside the tank 1, the oxide feeding pipe 6 arranged at the upper side position of the cover 5 is used for adding solid powdery metal oxide into the movable cavity 101 inside the tank 1, and the cover 8 arranged at the lower side position of the cover 5 is used for guiding the added solid powder, after the metal oxide is added from above, the metal oxide can fall down by the action of self gravity, and after the powder falls from the through hole 801 at the lower end of the cover body 8, the metal oxide can react with the chlorine gas blown from the lower side.
Referring to the attached drawings 4-6, a movable cavity 101 is formed inside a tank body 1, a fixed ring 9 is fixedly mounted in the middle of the movable cavity 101, a groove 904 is formed inside the fixed ring 9, a through groove 903 is formed on the bottom surface of the groove 904, a circular groove 905 is formed on the outer wall of the upper side of the fixed ring 9, circular holes 901 are uniformly formed in the inner wall of the circular groove 905, sliding grooves 902 are formed in the top surface of the circular groove 905 in a ring shape at equal intervals, and the through groove 903 in the bottom surface of the fixed ring 9 is arranged to guide chlorine gas blown in from the lower side of the tank body 1, during the guiding process, part of chlorine gas can be conveyed from the through groove 903 to the upper side of the movable cavity 101, and can directly react with metal oxide solid powder falling from the upper side of the rear tank body 1, and because the circular groove 905 is formed in the outer side of the upper end of the fixed ring 9 and the circular hole 901 is formed in the inner wall of the circular groove 905 to convey the upper side of the fixed ring 9, the advantage of providing the fixed ring 9 with such a structure is that the portion of chlorine gas can move the reaction plate assembly 10 movably connected to the fixed ring 9 back and forth, so that the gas permeable plate 1001 inside the movable chamber 101 inside the tank 1 can move back and forth in the reaction position.
Referring to fig. 4-6, the upper side of the fixed ring 9 is movably connected with a reaction plate assembly 10, the reaction plate assembly 10 includes a gas permeable plate 1001, the bottom surface of the gas permeable plate 1001 is elastically connected with a movable plate 11 at equal intervals in a ring shape, the top surface of the movable plate 11 is connected and fixed with the bottom surface of the gas permeable plate 1001 through a spring 1002, the bottom surface of the movable plate 11 is fixedly connected with a displacement plate 1101 through a connecting rod, the outer wall of the displacement plate 1101 is in sliding fit with the inner wall of the circular groove 905, the movable plate 11 is located at the upper side of the fixed ring 9, the reaction plate assembly 10 is arranged to drive the movable plate 11 movably connected to the fixed ring 9 and the displacement plate 1101 to adjust the position in the vertical direction under the action of chlorine, and it is worth mentioning that when the arranged chlorine drives the displacement plate 1101 to move upwards from the circular groove 905, when one end of the chlorine is moved, the circular hole 901 arranged on the inner wall of the circular groove 905 is communicated with the lower side of the fixed ring 9, the pressure of the chlorine gas at the lower side of the fixing ring 9 can reset the moving plate 11 and the displacement plate 1101, and the gas permeable plate 1001 can move back and forth during the reciprocating movement, so that the gas turbulence at the reaction position in the movable cavity 101 can be caused by the reciprocating movement, and the chlorine gas can fully react with the metal powder oxide.
Referring to fig. 7, an air inlet assembly 12 is fixedly installed on the bottom surface of the movable cavity 101, the air inlet assembly 12 includes an installation plate 1201 fixedly installed on the inner wall of the movable cavity 101, a connection pipe 1202 is fixedly installed on the bottom surface of the installation plate 1201, a fixed plate 13 is fixedly installed on the top surface of the installation plate 1201, a cavity 1301 is opened between the fixed plate 13 and the middle part of the installation plate 1201, air outlet holes 1302 are uniformly opened on the top surface of the fixed plate 13, the air outlet holes 1302 are in an inclined structure, the air outlet holes 1302 are communicated with the cavity 1301, the connection pipe 1202 is communicated with the cavity 1301, chlorine gas is injected into the movable cavity 101 through the air inlet assembly 12 by an external pump body and reacts with oxides, the connection pipe 1202 in the air inlet assembly 12 is provided, which in the above-mentioned embodiment can be communicated with the air outlet pipe 302 or directly communicated with the output end of the external pump body for supplying chlorine gas, in particular, the air inlet assembly 12 is provided, in the use process, after chlorine is input from the connecting pipe 1202, the chlorine can be filled into the tank 1 from the cavity 1301 and the air outlet 1302, and due to the inclined structure of the air outlet 1302, further, the chlorine gas entering the movable cavity 101 is spiral, so that the chlorine gas can well react with the metal reactant, the reaction efficiency is improved, and it is worth mentioning that, by controlling the flow rate of the chlorine gas entering the interior of the movable chamber 101, the metal powder falling from the upper side can always be in a relatively fixed area, i.e. a reaction area, after the reaction is finished, the chlorine gas is controlled to flow, so that the chloride after the reaction can be discharged from a discharge pipe 7 arranged on the outer side of the cover body 8 and positioned on the outer wall of the tank body 1 for collection, and in the process, the addition of the metal oxide is stopped, and the oxide feed pipe 6 is sealed.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not cause the essence of the corresponding technical solutions to depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. The device for producing titanium dioxide by a chlorination method is characterized by comprising a tank body (1), the outer wall of the middle part of the tank body (1) is provided with an annular heating mechanism for heating the tank body (1), a cover body (5) is fixedly arranged at the upper end of the tank body (1), an oxide feeding pipe (6) is fixedly arranged on the top surface of the cover body (5), a plurality of discharge pipes (7) are fixedly connected to the outer wall of the cover body (5), a cover body (8) is fixedly arranged in the cover body (5), a movable cavity (101) is arranged in the tank body (1), a fixed ring (9) is fixedly arranged in the middle of the movable cavity (101), the upper side of the fixed ring (9) is movably connected with a reaction plate assembly (10), the bottom surface of the movable cavity (101) is fixedly provided with an air inlet assembly (12), and chlorine is injected into the movable cavity (101) through the air inlet assembly (12) by means of an external pump body and reacts with the oxide.
2. The device for producing titanium dioxide by the chlorination process according to claim 1, the annular heating mechanism comprises a mounting ring (2) and a heating sheet (4) arranged at the inner position of the mounting ring, the mounting ring (2) is fixedly arranged on the outer wall of the tank body (1), an annular groove (201) is arranged inside the mounting ring (2), the inner wall of the annular groove (201) is fixedly provided with a baffle plate (202), the number of the heating sheets (4) is two, and the baffle (202) is taken as a symmetry axis to be distributed in the annular groove (201), the mounting ring (2) is fixedly provided with a fixed block (3) on the outer wall of the baffle (202), an air inlet pipe (301) and an air outlet pipe (302) which are communicated with the annular groove (201) are fixedly arranged on the inner wall of the fixed block (3), the inner ends of the air inlet pipe (301) and the air outlet pipe (302) are respectively arranged at the two sides of the baffle plate (202).
3. The device for producing titanium dioxide by using the chlorination method according to claim 2, wherein the cover body (8) is of an inverted copper bell-shaped structure, a through hole (801) is formed in the bottom surface of the cover body (8) in a penetrating manner, inclined discharge holes (802) are formed in the inner wall of the cover body (8) in a penetrating manner at equal intervals in an annular manner, the inner end of the discharge pipe (7) is communicated with the movable cavity (101), and the inner end of the discharge pipe (7) is located at the lower side position of the cover body (8).
4. The device for producing titanium dioxide according to claim 3, wherein a groove (904) is formed in the fixing ring (9), a through groove (903) is formed in the bottom surface of the groove (904), a circular groove (905) is formed in the outer wall of the upper side of the fixing ring (9), circular holes (901) are uniformly formed in the inner wall of the circular groove (905), and sliding grooves (902) are formed in the top surface of the circular groove (905) in a ring shape at equal intervals.
5. The device for producing titanium dioxide according to claim 4, wherein the reaction plate assembly (10) comprises a gas permeable plate (1001), the bottom surface of the gas permeable plate (1001) is elastically connected with a movable plate (11) in an annular shape at equal intervals, the top surface of the movable plate (11) is fixedly connected with the bottom surface of the gas permeable plate (1001) through a spring (1002), the bottom surface of the movable plate (11) is fixedly connected with a displacement plate (1101) through a connecting rod, the outer wall of the displacement plate (1101) is in sliding fit with the inner wall of a circular groove (905), and the movable plate (11) is located at the upper side position of a fixed ring (9).
6. The device for producing titanium dioxide according to claim 5, wherein the air inlet assembly (12) comprises a mounting plate (1201) fixedly mounted on the inner wall of the movable cavity (101), a connecting pipe (1202) is fixedly mounted on the bottom surface of the mounting plate (1201), a fixing plate (13) is fixedly mounted on the top surface of the mounting plate (1201), a cavity (1301) is formed between the fixing plate (13) and the middle of the mounting plate (1201), air outlet holes (1302) are uniformly formed in the top surface of the fixing plate (13), the air outlet holes (1302) are of an inclined structure, the air outlet holes (1302) are communicated with the cavity (1301), and the connecting pipe (1202) is communicated with the cavity (1301).
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