CN217341397U - Titanium dioxide production equipment by chlorination process - Google Patents
Titanium dioxide production equipment by chlorination process Download PDFInfo
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- CN217341397U CN217341397U CN202220293172.2U CN202220293172U CN217341397U CN 217341397 U CN217341397 U CN 217341397U CN 202220293172 U CN202220293172 U CN 202220293172U CN 217341397 U CN217341397 U CN 217341397U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
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Abstract
The utility model discloses a chlorination process titanium dioxide production facility belongs to the chemical machinery field, including the material mixing section, oxidation furnace body, intermediate cooling subassembly and the ejection of compact subassembly that connect gradually, the oxidation furnace body includes the reaction section and moves the material section, and the reaction section is connected with the material mixing section, moves material section and intermediate cooling subassembly, and the material mixing section equals with the reaction section internal diameter, moves the material section and is the toper, and the export of moving the material section equals with intermediate cooling subassembly internal diameter, ejection of compact subassembly internal diameter, and moves and still be equipped with the isolating construction who is used for separating chlorine in the material section. The utility model discloses not only can reach best gas mixing state and best temperature field, and product quality is good, production intensity is big, product quality is stable, and the temperature resistance is corrosion-resistant, does not scar, and the continuous operation cycle is long.
Description
Technical Field
The utility model belongs to the chemical machinery field particularly, relates to a chlorination process titanium dioxide production facility.
Background
In the presence of TiCl in the gas phase 4 Oxidation reaction with air or oxygen to produce pure solid-phase TiO 2 In the chloride-process titanium dioxide production process of chlorine, an oxidation furnace is the most critical equipment, and is required to have high temperature resistance, corrosion resistance, oxidation resistance and complex structure; meanwhile, in the titanium dioxide production process by the chlorination method, preheated gas-phase TiCl is used 4 Oxygen and the required crystal form conversion promoter are fed into a mixing zone to be rapidly mixed, the process is required to be completed within 0.01 second, and the mixture is fed into an oxidation zone, the oxidation zone is as far as possible tubular plug flow, so that the retention time in the oxidation zone and the generation of solid-phase TiO are realized 2 The reaction zone has a substantially equal residence time, whereby solid phase TiO is ensured 2 The particles are uniform and basically equal in size, the gas phase oxidation reaction can begin to react at about 900 ℃ to generate aerosol, white fog appears at 1000 ℃, the reaction can be completed at 1150-1250 ℃ to obtain better products, the whole reaction time is about 0.15-0.15 s, the oxidation reaction temperature is increased to 1300-1800 ℃ along with the increase of the technology, the reaction time is shorter, the retention time of a reaction area can be shortened to 0.03-0.1 s, and the generated solid phase TiO 2 Thinner and more uniform, and better quality.
At present, because the traditional oxidation furnace has the defects of non-optimized material selection and unreasonable structural design, the feed section, the reaction section, the cooling section and the discharge section are unreasonable in segmentation, so that the mixing is not uniform, the reaction is insufficient, the product quality is influenced, and the problems of furnace scabbing, equipment welding crack sensitivity and intergranular corrosion tendency exist.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a chlorination process titanium dioxide production facility not only can reach best gas mixing state and best temperature field, and product quality is good, production intensity is big, product quality is stable, temperature resistant corrosion-resistant, does not scar, and the continuous operation cycle is long.
For realizing the purpose of the utility model, the technical proposal adopted is that: the utility model provides a chlorination process titanium dioxide production facility, is including the mixing section, oxidation furnace body, intercooling subassembly and the ejection of compact subassembly that connect gradually, and the oxidation furnace body includes the reaction section and moves the material section, and the reaction section is connected with the compounding section, moves material section and intercooling subassembly, and the mixing section equals with the reaction section internal diameter, moves the material section and is the toper, and the export of moving the material section equals with intercooling subassembly internal diameter, ejection of compact subassembly internal diameter, and still is equipped with the isolating construction who is used for separating chlorine on the material section that just moves.
Furthermore, the inner walls of the reaction section and the material moving section are also provided with refractory cement layers.
Furthermore, be equipped with air inlet and feed inlet on the compounding section, the air inlet is located the terminal surface of compounding section, and the axis direction of feed inlet is perpendicular with the axis direction of air inlet.
Furthermore, the separation structure comprises an annular cavity arranged in the wall of the intermediate cooling assembly and a separation channel communicated with the annular cavity and the interior of the intermediate cooling assembly, and the intermediate cooling assembly is also provided with a first separation port communicated with the annular cavity.
Furthermore, the separation structure is a plurality of, and a plurality of separation structures are arranged along the axis direction of intercooling subassembly interval.
Furthermore, an annular cooling cavity is further arranged in the wall of the intermediate cooling assembly, and a first water inlet pipe and a first water outlet pipe which are communicated with the annular cooling cavity are further arranged on the intermediate cooling assembly.
Furthermore, the discharging assembly comprises a discharging barrel and a cooling jacket arranged on the outer wall of the discharging barrel, and a second water inlet pipe and a second water outlet pipe which are communicated with the inside of the cooling jacket are further arranged on the cooling jacket.
Furthermore, a spiral guide plate is further arranged in the cooling jacket, and the second water inlet pipe and the second water outlet pipe are respectively positioned at two ends of the cooling jacket.
Further, the second water outlet pipe is located at one end close to the intermediate cooling assembly.
Furthermore, a second separation port communicated with the interior of the discharging assembly is further arranged on the discharging assembly.
Furthermore, the volume of the oxidation furnace body is 0.5-5 m 3 The length-diameter ratio is 3-6, and the nominal diameter is 0.5-2 m.
Further, the volume of the oxidation furnace body is 1.0m 3 The length-diameter ratio is 4.62, and the nominal diameter is 0.835 m.
Furthermore, the oxidation furnace body is made of a nickel-based alloy NO6600 material.
The utility model has the advantages that,
the utility model can not only reach the best gas mixing state and the best temperature field, so that the produced solid phase TiO 2 The form control is good, the product quality is good, and the product quality is stable; meanwhile, the utility model has stable and reliable operation, effectively improves the production capacity of the reactor, and has the advantages of high production strength, temperature resistance, corrosion resistance, no scab and long continuous operation period; meanwhile, the oxidation reaction temperature of the utility model can be increased to 1300-1800 ℃ in the production process, the reaction time is short, the stay time in the reaction zone is shortened to 0.03-0.1 s, and the generated solid phase TiO 2 The thickness is thinner and more uniform, and the product quality is improved.
The utility model makes the solid phase TiO generated just by arranging the middle cooling component 2 The particles touch the inner wall of the material moving section and the inner wall of the intermediate cooling assembly, not hard scars but soft attachments are formed on the inner wall of the material moving section and the inner wall of the intermediate cooling assembly, and when the linear speed of chlorine generated by reaction reaches more than 80m/s, the attachments are blown away, so that the scar forming problem is solved, the labor intensity is greatly reduced, and the production efficiency is improved.
The utility model discloses a special nickel base alloy NO6600 makes, has effectively solved welding crack sensitivity and intergranular corrosion tendency problem, prevents stress corrosion crack, guarantees that equipment is high temperature resistant, corrosion-resistant, has prolonged the life of equipment.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the principles of the invention.
FIG. 1 is a block diagram of a titanium dioxide production facility for a chloride process according to the present invention;
FIG. 2 is a block diagram of the mixing section of FIG. 1;
FIG. 3 is a structural view of the oxidation furnace body in FIG. 1;
FIG. 4 is a block diagram of the intercooler assembly of FIG. 1;
FIG. 5 is a block diagram of the take-off assembly of FIG. 1.
Reference numbers and corresponding part names in the drawings:
1. mixing section, 2, oxidation furnace body, 3, intermediate cooling subassembly, 4, ejection of compact subassembly, 5, air inlet, 6, feed inlet, 7, the flange, 8, the reaction section, 9, refractory cement layer, 10, the annular chamber, 11, annular cooling chamber, 12, move the material section, 13, separation channel, 14, first separation mouth, 15, first inlet tube, 16, first outlet pipe, 17, spiral cooling channel, 18, discharge gate, 19, the second outlet pipe, 20, cooling jacket, 21, the guide plate, 22, second separation mouth, 23, the second inlet tube, 24, the saddle, 25, ejection of compact barrel.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant disclosure and are not to be considered as limiting the invention. It should be noted that, for convenience of description, only the parts related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in figure 1, the utility model provides a pair of titanium dioxide production equipment by chlorination process, including the mixing section 1, the oxidation furnace body 2, the intermediate cooling subassembly 3 and the ejection of compact subassembly 4 that connect gradually, mixing section 1 is used for to gaseous TiCl 4 Mixed with air or oxygen, the oxidation furnace body 2 is used for making gas-phase TiCl 4 Reacting with air or oxygen and pushing, and the intermediate cooling component 3 is used for reacting the generated solid-phase TiO 2 And chlorine gas, and a discharging component 4 for separating and cooling the generated solid-phase TiO 2 And (7) sending out. The two ends of the mixing section 1, the oxidation furnace body 2, the intermediate cooling assembly 3 and the discharging assembly 4 are respectively provided with a flange 7, so that the mixing section 1, the oxidation furnace body 2, the intermediate cooling assembly 3 and the discharging assembly 4 can be directly and fixedly connected through bolts, the oxidation furnace body comprises a reaction section 8 and a material moving section 12, the reaction section 8 is connected with the mixing section 1, the material moving section 12 is connected with the intermediate cooling assembly 3, and the flanges 7 are respectively arranged on the opposite surfaces of the reaction section 8 and the material moving section 12, so that the reaction section 8 and the material moving section 12 are also fixedly connected through bolts; meanwhile, the inner diameters of the mixing section 1 and the reaction section 8 are equal, so that the gas-phase TiCl is ensured to be 4 Mixing with air or oxygen in the mixing section 1, horizontally pushing into the reaction section 8, forming a conical material moving section 12, wherein the outlet of the material moving section 12 is equal to the inner diameter of the intermediate cooling component 3 and the inner diameter of the discharging component 4, so that the gas-phase TiCl is enabled to be uniform 4 Solid phase TiO generated after reaction with air or oxygen 2 Move towards the center with the chlorine and move in the intermediate cooling component 3 and the discharging component 4 to push forwards in parallel, and the intermediate cooling component 3 and the discharging component 4 are reduced, so that the solid-phase TiO is not only enabled 2 The flow speed of the chlorine gas in the intermediate cooling component 3 and the discharging component 4 is increased, and the gas-phase TiCl is enabled to be 4 The flow speed in the reaction section 8 and the material transferring section 12 is increased, and the generated solid-phase TiO is effectively avoided 2 Scabs are formed on the inner wall of the material moving section 12 and the inner wall of the intermediate cooling component 3 when the scabs meet the inner wall of the material moving section 12 and the inner wall of the intermediate cooling component 3, so that the inner wall of the material moving section 12 and the inner wall of the intermediate cooling component 3 do not need to be cleaned manually in the later period. The material moving section 12 is also provided with a separation structure for separating chlorine, and the separation structure is mainly used for separating generated solid-phase TiO 2 Pre-separating with chlorineSo that the chlorine content entering the discharging component 4 is smaller, and solid-phase TiO is ensured 2 The secondary separation effect with chlorine gas through the discharging component 4 is better, and solid-phase TiO is effectively prevented 2 A large amount of chlorine is entrained when it is discharged through the discharge assembly 4.
When it is required to treat solid-phase TiO 2 During the production, the gas phase TiCl 4 Adding a small amount of crystal transformation agent AlCl 3 Mixing and feeding into mixing section 1, and feeding oxygen preheated to 1300 deg.C or above into mixing section 1 to make gas-phase TiCl 4 Mixing with oxygen, introducing into the reaction section 8, gas-phase TiCl 4 Oxidizing with oxygen at 1300-1800 deg.c for less than 0.1s to produce solid TiO 2 And chlorine, after formation the solid phase TiO is passed rapidly through a transfer section 12 2 The powder is moved to an intermediate cooling component 3 for cooling, so that the reaction heat is rapidly removed, and chlorine gas is pre-separated through a separation structure while being cooled, and then enters a discharging component 4 for separating the chlorine gas and solid-phase TiO 2 And (4) separating and discharging.
In some embodiments, TiCl is present in the gas phase from reaction section 8 4 The reaction temperature with air or oxygen is higher, and reaction section 8 and material moving section 12 structure as an organic whole, consequently, in order to not only need keep warm still to satisfy the high temperature operation demand to reaction section 8, as shown in fig. 3, all still be equipped with refractory cement layer 9 at reaction section 8 inner wall and material moving section 12 inner wall, the thickness on refractory cement layer 9 can be adjusted according to actual use condition.
In some embodiments, as shown in fig. 2, the mixing section 1 is provided with a gas inlet 5 and a feed inlet 6, the gas inlet 5 is located on the end face of the mixing section 1, and the axial direction of the feed inlet 6 is perpendicular to the axial direction of the gas inlet 5, so that the gas-phase TiCl is in a gas phase 4 After being fed into the mixing section 1 through the feed inlet 6, the high-temperature oxygen or the high-temperature air fed through the air inlet 5 can not only fully act on the gas-phase TiCl 4 And the gas phase TiCl can be reacted 4 Blowing the mixture into a reaction furnace body; at the same time, since the gas phase is TiCl 4 Entering from the side of the mixing section 1 to enable gas-phase TiCl 4 The gas-phase TiCl which enters the mixing section 1 and diffuses towards the two sides and the gas-phase TiCl diffuses towards the gas inlet 5 4 Will be communicated with the feed inlet6, high-temperature air or oxygen is fed into the mixing section 1 to collide, so that a vortex is formed in the mixing section 1, and the gas-phase TiCl is enabled to be 4 Mixing with high-temperature oxygen and high-temperature air more fully, thereby leading the high-temperature oxygen or the high-temperature air and the gas-phase TiCl to be more fully mixed 4 The mixing effect is greatly improved. The plurality of feeding holes 6 can be arranged at intervals along the circumferential direction of the mixing section 1, so that the gas-phase TiCl can be uniformly distributed 4 Can evenly enter and mix around the mixing section 1, so that the mixing effect is greatly improved.
In some embodiments, as shown in fig. 4, the separating structure includes an annular cavity 10 disposed in the wall of the intermediate cooling module 3, in order to facilitate processing of the annular cavity 10, the annular cavity 10 near the two ends of the intermediate cooling module 3 may have a retaining ring mounted on the outer wall of the intermediate cooling module 3, and a gap flush with the outer edge of the retaining ring is formed inside the flange 7 at the two ends of the intermediate cooling module 3, and a sealing ring is sealed and disposed on the gap and the retaining ring together, so that the flange 7 at the end of the intermediate cooling module 3, the outer wall of the intermediate cooling module 3, the retaining ring and the sealing ring together enclose an annular cavity 10; when the annular cavity 10 is located in the middle of the intermediate cooling assembly 3, an annular groove can be directly formed in the outer wall of the intermediate cooling assembly 3, a sealing ring is arranged on the annular groove in a sealing mode, and the annular groove is covered by the sealing ring to form a closed annular cavity 10; when the annular cavity 10 is located in the middle of the intermediate cooling assembly 3, two retainer rings can be directly installed on the outer wall of the intermediate cooling assembly 3 at intervals, and the two retainer rings are jointly sealed and provided with sealing rings, so that the two retainer rings, the outer wall of the intermediate cooling assembly 3 and the sealing rings can jointly enclose the annular cavity 10. The arrangement of the annular chamber 10 is not limited to the above-mentioned ones, and the specific arrangement of the annular chamber 10 can be adjusted according to the actual situation. The separation structure further comprises a plurality of separation channels 13 communicating the annular cavity 10 with the interior of the intermediate cooling assembly 3, the separation channels 13 can be arranged uniformly relative to the annular cavity 10, so that the interior of the intermediate cooling assembly 3 is communicated with the annular cavity 10 uniformly, chlorine entering the interior of the intermediate cooling assembly 3 can enter the annular cavity 10 uniformly through the separation channels 13, and the chlorine and solid-phase TiO are enabled to enter the annular cavity 10 uniformly 2 The pre-separation effect is better. In the (A)The intercooling assembly 3 is also provided with a first separation port 14 communicated with the annular cavity 10, so that the pre-separated chlorine gas enters the annular cavity 10 through the separation channel 13 and is then intensively sent out through the first separation port 14.
In some embodiments, the separation structure is a plurality of separation structures, and the separation structures are arranged at intervals along the axial direction of the intermediate cooling module 3, so that the generated chlorine gas and the solid-phase TiO are enabled to be separated 2 The whole process of passing through the intermediate cooling assembly 3 can realize pre-separation, so that the separation effect is greatly improved; meanwhile, when the separation structures are multiple, the first separation ports 14 in the multiple separation structures can be connected in parallel together through a pipeline, so that a pipeline system for conveying chlorine in the later period is simpler.
In some embodiments, an annular cooling cavity 11 is further provided in the wall of the intermediate cooling module 3, the arrangement manner of the annular cooling cavity 11 may be the same as that of the annular cavity 10 in the separation structure, and a first water inlet pipe 15 and a first water outlet pipe 16 which are communicated with the annular cooling cavity 11 are further provided on the intermediate cooling module 3, and in order to ensure that the cooling water entering through the first water inlet pipe 15 can pass through the entire annular cooling cavity 11, the first water inlet pipe 15 and the first water outlet pipe 16 may be symmetrically arranged; meanwhile, the number of the annular cooling cavities 11 on the intermediate cooling component 3 can be multiple, and the annular cooling cavities 11 can be uniformly distributed at intervals along the axial direction of the intermediate cooling component 3, so that chlorine and solid-phase TiO are not only treated 2 The pre-cooling effect is higher, and the temperature on the intermediate cooling component 3 is more uniform, thereby effectively preventing the inner wall of the intermediate cooling component 3 from scabbing.
In some embodiments, as shown in fig. 5, the discharging assembly 4 includes a discharging cylinder 25 and a cooling jacket 20 disposed on the outer wall of the discharging cylinder 25, two ends of the cooling jacket 20 are welded and fixed to the inner side surfaces of the flanges 7 at two ends of the discharging assembly 4, respectively, so that the cooling jacket 20 covers the entire discharging assembly 4; meanwhile, a second water inlet pipe 23 and a second water outlet pipe 19 which are communicated with the interior of the cooling jacket 20 are also arranged on the cooling jacket 20, and the second water inlet pipe 23 sends cooling water into the cooling jacket 20 and the chlorine and solid-phase TiO in the discharging component 4 2 Heat exchange is carried out to realize the chlorine and the solid-phase TiO 2 Performing secondary cooling toEnsure the chlorine and solid-phase TiO delivered by the discharging component 4 2 The temperature can be reduced to below 600 ℃, thereby meeting the requirements of chlorine and solid-phase TiO 2 The delivery request of (1).
In some embodiments, a spiral guide plate 21 is further disposed in the cooling jacket 20, an inner edge of the spiral guide plate 21 is welded and fixed to the discharge cylinder 25, an outer edge of the spiral guide plate 21 is welded and fixed to an inner wall of the cooling jacket 20, so that a spiral cooling channel 17 is formed between the cooling jacket 20 and the discharge cylinder 25, the second water inlet pipe 23 and the second water outlet pipe 19 are respectively located at two ends of the cooling jacket 20, that is, the second water inlet pipe 23 and the second water outlet pipe 19 are respectively located at two ends of the spiral cooling channel 17, so that cooling water fed through the second water inlet pipe 23 can flow through the entire discharge assembly 4 through the spiral cooling channel 17, and the cooling water can sufficiently react with chlorine gas and TiCl, TiCl 4 Heat exchange is carried out to lead chlorine gas and solid-phase TiO 2 The cooling effect of (2) is better.
In some embodiments, the second water outlet pipe 19 is located at one end close to the intermediate cooling module 3, so that the second water outlet pipe 19 is located at the inlet end of the discharging module 4, the second water inlet pipe 23 is located at the outlet end of the discharging module 4, so that the temperature of the cooling water reaching the inlet end of the discharging module 4 is higher than the temperature of the cooling water entering the outlet end of the discharging module 4, the heat exchange efficiency on the discharging module 4 is gradually increased along the discharging direction, and chlorine and solid-phase TiO are effectively avoided 2 Quenching to mix chlorine gas with solid TiO 2 Cooling is carried out step by step to ensure that the cooled solid-phase TiO 2 The quality is better.
In some embodiments, the discharging assembly 4 is further provided with a second separation port 22 communicated with the inside of the discharging assembly 4, an axial direction of the second separation port 22 is perpendicular to the discharging direction, the second separation port 22 is in a pipeline structure, the second separation port 22 is located on a side wall of the discharging assembly 4, and the second separation port 22 is used for pre-separating chlorine gas and solid-phase TiO 2 Separating again to separate out chlorine completely; meanwhile, the number of the second separation openings 22 may be plural, and the plural second separation openings 22 may be arranged at intervals along the circumferential direction of the discharging assembly 4.
In some embodiments, the volume of the oxidation oven body 2 is 0.5 to5m 3 The length-diameter ratio is 3-6, the nominal diameter is 0.5-2 m, and specifically, the volume of the oxidation furnace body 2 is 1.0m 3 The length-diameter ratio is 4.62, the nominal diameter is 0.835m, and the volume, the length-diameter ratio and the nominal diameter of the oxidation furnace body can be adjusted according to the actual situation.
In some embodiments, the oxidation furnace body 2 is made of a nickel-based alloy NO6600 material, so that the problems of welding crack sensitivity and intergranular corrosion tendency are effectively solved, stress corrosion cracks are prevented, high temperature resistance and corrosion resistance of equipment are ensured, and the service life of the equipment is prolonged.
In some embodiments, still be equipped with saddle 24 on the oxidation furnace body 2, and saddle 24 can be a plurality of, makes the utility model discloses an accessible saddle 24 fixed mounting makes when the installation the utility model discloses an installation is more convenient.
When it is required to treat solid-phase TiO 2 During the production, the gas phase TiCl 4 Adding a small amount of crystal transformation agent AlCl 3 Mixing and feeding into the mixing section 1 through the feed inlet 6, feeding oxygen preheated to 1300 ℃ or higher into the mixing section 1 through the gas inlet 5 to make the gas-phase TiCl 4 Mixed with oxygen and fed into the reaction section 8. Gas-phase TiCl entering the reaction section 8 4 Oxidizing with oxygen at 1300-1800 deg.c for less than 0.1s to produce solid TiO phase 2 And chlorine, after formation the solid phase TiO is passed rapidly through a transfer section 12 2 The solid powder and the chlorine gas move into the intermediate cooling component 3, and the chlorine gas and the solid-phase TiO in the intermediate cooling component 3 2 Exchanges heat with cooling water fed into the annular cooling cavity 11 through the first water inlet to ensure that chlorine and solid-phase TiO are subjected to heat exchange 2 Is primarily cooled, and cooling water in the annular cooling cavity 11 is sent out through the first water outlet after heat exchange; at the same time, solid-phase TiO 2 When the powder and the chlorine gas move into the intermediate cooling assembly 3, the chlorine gas enters the annular cavity 10 through the separation channel 13 and is intensively discharged through the first separation port 14, and the chlorine gas and the solid-phase TiO are completed 2 Pre-separation of (2). Chlorine and solid-phase TiO after the completion of pre-separation 2 Continuously advances into the discharging component 4, and chlorine gas and solid phase TiO in the discharging component 4 2 Exchanging heat with cooling water fed into the cooling jacket 20 through the second water inlet to make chlorine gas and solid phase TiO 2 Is cooled again, and the cooling water in the annular cooling cavity 11 is sent out through a second water outlet after heat exchange; at the same time, solid-phase TiO 2 When the powder and the chlorine gas move into the discharging component 4, the chlorine gas is discharged through the second separation port 22, and the chlorine gas and the solid-phase TiO are separated 2 Second separation of the solid TiO from the second separation 2 It is fed directly through the discharge opening 18 of the discharge assembly 4.
In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
It will be understood by those skilled in the art that the foregoing embodiments are provided for clarity of description only, and are not intended to limit the scope of the invention. Other variations or modifications will occur to those skilled in the art based on the foregoing disclosure and are still within the scope of the invention.
Claims (13)
1. The utility model provides a chlorination process titanium dioxide production facility, a serial communication port, including the mixing section (1) that connects gradually, oxidation furnace body (2), intercooling subassembly (3) and ejection of compact subassembly (4), the oxidation furnace body includes reaction section (8) and material shifting section (12), reaction section (8) are connected with mixing section (1), material shifting section (12) and intercooling subassembly (3), mixing section (1) equals with reaction section (8) internal diameter, material shifting section (12) is the toper, the export of material shifting section (12) and intercooling subassembly (3) internal diameter, ejection of compact subassembly (4) internal diameter equals, and still be equipped with the isolating construction who is used for separating chlorine on material shifting section (12).
2. The chloride process titanium dioxide production equipment according to claim 1, characterized in that the inner walls of the reaction section (8) and the material-removing section (12) are further provided with a refractory cement layer (9).
3. The titanium dioxide production equipment by the chlorination process according to claim 1, wherein the mixing section (1) is provided with an air inlet (5) and a feed inlet (6), the air inlet (5) is positioned on the end surface of the mixing section (1), and the axial direction of the feed inlet (6) is vertical to the axial direction of the air inlet (5).
4. The titanium dioxide production plant according to claim 1, characterized in that the separation structure comprises an annular chamber (10) arranged in the wall of the intermediate cooling module (3), a separation channel (13) communicating the annular chamber (10) with the interior of the intermediate cooling module (3), and a first separation opening (14) communicating with the annular chamber (10) is arranged on the intermediate cooling module (3).
5. The chloride process titanium dioxide production plant according to claim 1 or 4, characterized in that the separation structure is plural, and plural separation structures are arranged at intervals along the axial direction of the intermediate cooling module (3).
6. The chloride process titanium dioxide production equipment according to claim 1, wherein an annular cooling cavity (11) is further arranged in the wall of the intermediate cooling assembly (3), and a first water inlet pipe (15) and a first water outlet pipe (16) which are communicated with the annular cooling cavity (11) are further arranged on the intermediate cooling assembly (3).
7. The titanium dioxide production equipment by the chlorination process according to claim 1, wherein the discharging assembly (4) comprises a discharging cylinder (25) and a cooling jacket (20) arranged on the outer wall of the discharging cylinder (25), and the cooling jacket (20) is further provided with a second water inlet pipe (23) and a second water outlet pipe (19) communicated with the inside of the cooling jacket (20).
8. The chloride process titanium dioxide production equipment according to claim 7, wherein a spiral guide plate (21) is further arranged in the cooling jacket (20), and the second water inlet pipe (23) and the second water outlet pipe (19) are respectively positioned at two ends of the cooling jacket (20).
9. Chloride process titanium dioxide production plant according to claim 8, characterized in that said second outlet pipe (19) is located close to one end of the intermediate cooling module (3).
10. The chloride process titanium dioxide production facility of claim 1, wherein the discharge assembly (4) is further provided with a second separation port (22) communicating with the interior thereof.
11. The titanium dioxide production equipment by the chlorination process according to claim 1, wherein the volume of the oxidation furnace body (2) is 0.5-5 m3, the length-diameter ratio is 3-6, and the nominal diameter is 0.5-2 m.
12. The chloride process titanium dioxide production facility according to claim 11, wherein the oxidation furnace body (2) has a volume of 1.0m3, an aspect ratio of 4.62 and a nominal diameter of 0.835 m.
13. The titanium dioxide production equipment by the chloride process according to claim 1, wherein the oxidation furnace body (2) is made of a nickel-based alloy NO6600 material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220293172.2U CN217341397U (en) | 2022-02-14 | 2022-02-14 | Titanium dioxide production equipment by chlorination process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220293172.2U CN217341397U (en) | 2022-02-14 | 2022-02-14 | Titanium dioxide production equipment by chlorination process |
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| CN217341397U true CN217341397U (en) | 2022-09-02 |
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| CN202220293172.2U Active CN217341397U (en) | 2022-02-14 | 2022-02-14 | Titanium dioxide production equipment by chlorination process |
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- 2022-02-14 CN CN202220293172.2U patent/CN217341397U/en active Active
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