Titanium dioxide spray drying tower

By introducing disc and rotary disc structures into the titanium dioxide spray drying tower, combined with an inclined design, the problem of titanium dioxide agglomeration was solved, achieving more efficient drying and reduced costs.

CN121243791APending Publication Date: 2026-01-02HUAIAN HONGYANG TITANIUM IND CO LTD
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Patent Information

Application Number
CN202511384216.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-26
Publication Date
2026-01-02

AI Technical Summary

Technical Problem

Existing titanium dioxide spray drying methods are incomplete, leading to agglomeration, which requires crushing and increases costs.

Method used

A titanium dioxide spray drying tower was designed, comprising a disc and a rotary disc structure. By crushing the undried titanium dioxide, combined with the design of inclined fixed blocks and filters, the drying efficiency is improved, and the inclined air outlet pipe avoids clogging.

Benefits of technology

This achieves more thorough drying of titanium dioxide, avoids pulverization, improves processing efficiency, and reduces costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of drying towers, in particular to a titanium dioxide spray drying tower which comprises a drying tower shell, a filter part is arranged in the drying tower shell and is designed to be funnel-shaped, a collecting tank is arranged below the filter part and is fixedly connected with the drying tower shell, and the collecting tank is fixedly connected with the drying tower shell. A disc is arranged in the collecting tank and connected with a fixing frame through a conveying mechanism, the upper surface of the disc is inclined, a gap is formed between the disc and the collecting tank, a plurality of sets of grooves are formed in the upper portion of the interior of the disc and are in a radial shape, a rotary disc is rotationally installed above the disc, and the rotary disc is connected with the conveying mechanism. The center of the rotating disc is hollowed out, and the upper end face of the rotating disc is inclined. According to the titanium dioxide spray drying tower, through the arrangement of the disc and the rotary disc, caked and undried titanium dioxide can be rolled, and under the cooperation of the conveying mechanism, the titanium dioxide can be dried again.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of drying tower, in particular to a titanium dioxide spray drying tower. BACKGROUND

[0002] The drying tower is a kind of equipment for rapid drying of materials by spraying, hot air and other ways, commonly used in chemical industry, food, pharmaceutical and other fields. Its core function is to rapidly evaporate water or solvent in liquid or slurry material, so as to obtain dry powder product. The titanium dioxide spray drying tower pumps liquid titanium dioxide slurry into the drying tower, and uses pressure nozzle or high-speed centrifugal atomizer to atomize it into fine droplets. After the droplets contact with high-temperature hot air, the water is rapidly evaporated, and the solid powder is dried in a very short time, and finally discharged from the bottom of the tower.

[0003] The existing titanium dioxide is not completely dried during drying, resulting in titanium dioxide agglomeration, so that the agglomerated titanium dioxide needs to be crushed after drying, affecting the drying effect of titanium dioxide, and increasing the processing cost of titanium dioxide. SUMMARY

[0004] The purpose of the present application is to provide a titanium dioxide spray drying tower to solve the problems in the background.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a titanium dioxide spray drying tower, comprising a drying tower shell, a fixed frame is fixedly installed on the inside upper part of the drying tower shell, an air inlet mechanism is arranged in the inside of the fixed frame, a material spraying part is fixedly installed in the inside of the drying tower shell, the material spraying part is located outside the fixed frame, a filter part is arranged in the inside of the drying tower shell, the filter part is designed in a funnel shape, a collecting groove is arranged below the filter part, the collecting groove is fixedly connected with the drying tower shell, a disc is arranged in the inside of the collecting groove, the disc is connected with the fixed frame through a conveying mechanism, the upper surface of the disc is inclined, there is a gap between the disc and the collecting groove, a plurality of groups of grooves are formed in the inside upper part of the disc, the grooves are radially arranged, a rotating disc is rotatably installed above the disc, the center of the rotating disc is hollow, the upper end surface of the rotating disc is inclined, an air outlet pipe is fixedly installed below the outer surface of the drying tower shell, the air outlet pipe is inclined, a filter plate is fixedly installed at one end of the air outlet pipe inside the drying tower shell, and a discharge port is formed below the drying tower shell.

[0006] Preferably, the air inlet mechanism comprises an air inlet pipe and an air outlet, the air inlet pipe penetrates the inside upper part of the drying tower shell, one end of the air inlet pipe is located in the inside of the fixed frame, and the air outlet is formed below the outer surface of the air inlet pipe.

[0007] Preferably, the air inlet mechanism further comprises a motor fixedly installed above the drying tower shell, an output end of the motor extends to the inside of the fixed frame through the drying tower shell, and a rotating shaft is fixedly installed at the output end of the motor.

[0008] Preferably, the outer surface of the fixed frame is rotationally sleeved with a protective piece located at the outer surface of the air outlet, a fixed block is fixedly installed at the inside of the protective piece, the fixed block is inclined, a cleaning piece is arranged at the side of the protective piece away from the fixed frame, the cleaning piece is rotationally connected with the fixed frame through an elastic piece, and the cleaning piece is in contact with the fixed block.

[0009] Preferably, the conveying mechanism comprises a pipeline fixedly installed below the fixed frame, a gap is arranged between the lower portion of the pipeline and the bottom of the collecting groove, the pipeline is fixedly connected with the disc, a discharging opening is arranged at the upper portion of the pipeline, a rotating rod is arranged in the pipeline, the rotating rod is fixedly connected with the rotating shaft, and helical blades are fixedly sleeved at the outer surface of the rotating rod.

[0010] Preferably, a scraper is fixedly installed at the lower portion of the outer surface of the rotating rod, the scraper is inclined, the scraper is rotationally connected with the bottom of the collecting groove, and the scraper is connected with the filter element through an adjusting assembly.

[0011] Preferably, the adjusting assembly comprises an installation plate rotationally installed at the inside of the collecting groove, the installation plate is fixedly connected with the scraper and the rotating disc, a sleeve is fixedly installed at the upper portion of the installation plate, a rod is slidingly installed at the upper portion of the sleeve, and the rod is fixedly connected with the filter element.

[0012] Preferably, the adjusting assembly further comprises an adjusting piece and a convex block, the adjusting piece is fixedly installed below the filter element, the convex block is fixedly installed above the collecting groove, the convex block is in contact with the adjusting piece, and the filter element is rotationally connected with the drying tower shell through an elastic structure.

[0013] Preferably, the elastic structure comprises a groove arranged at the outer surface of the filter element, a rotating seat is rotationally installed at the inside of the groove, a guide groove is arranged at the inner wall of the drying tower shell, a stand is fixedly installed at the inside of the guide groove, the stand is slidingly connected with the rotating seat, a spring is movably sleeved at the outer surface of the stand, and the spring is fixedly connected with the rotating seat.

[0014] Preferably, a support plate is arranged below the filter element, the support plate is inclined, the support plate is fixedly connected with the drying tower shell, a thorn is fixedly installed at the side of the support plate close to the filter element, and the thorn is in contact with the filter element.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. By setting up discs and turntables, agglomerated and undried titanium dioxide can be crushed. With the cooperation of the conveying mechanism, the titanium dioxide can be dried again, resulting in a better drying effect. Moreover, after drying, there is no need to crush the titanium dioxide again, which helps to improve the efficiency of titanium dioxide processing and effectively reduce costs.

[0016] 2. By setting inclined fixing blocks, the hot air can be guided to a certain extent, so that the hot air and titanium dioxide slurry can be in more sufficient contact, which is conducive to improving the drying efficiency of titanium dioxide. At the same time, with the cooperation of cleaning and protective parts, the titanium dioxide slurry can be prevented from entering the interior of the fixing frame.

[0017] 3. By setting up a filter element, the filter element can be raised and lowered while rotating, which makes it easy to shake off the titanium dioxide on top of the filter element. With the help of the needle, the filter element can be cleaned to avoid clogging. It does not require regular manual cleaning, which helps to reduce the workload of the staff. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the internal structure of the drying tower shell of the present invention; Figure 3 This is a cross-sectional view of the overall structure of the present invention; Figure 4 This is a partial structural cross-sectional view of the present invention; Figure 5 For the present invention Figure 4 Enlarged view of point A; Figure 6 This is a partial structural cross-sectional view of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of point B; Figure 8 This is a schematic diagram of the connection structure between the disc and the turntable of the present invention.

[0019] The components represented by the reference numbers in the drawings are listed as follows: 1, drying tower shell; 2, fixing frame; 3, air inlet pipe; 4, motor; 5, rotating shaft; 6, fan blade; 7, air outlet; 8, protection piece; 9, fixing block; 10, guide groove; 11, rotating seat; 12, cleaning piece; 13, spraying piece; 14, filtering piece; 15, groove body; 16, stand; 17, spring; 18, collecting groove; 19, mounting plate; 20, rod piece; 21, sleeve; 22, scraper; 23, rotating rod; 24, pipeline; 25, spiral blade; 26, adjusting piece; 27, protruding block; 28, support plate; 29, thorn; 30, disc; 31, groove; 32, rotating disc; 33, air outlet pipe; 34, filter plate; 35, discharge port. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0021] Please refer to Figures 1-8 , a titanium dioxide spray drying tower is shown in the drawing, which comprises a drying tower shell 1, a fixing frame 2 is fixedly installed on the top of the inside of the drying tower shell 1, an air inlet mechanism is arranged in the inside of the fixing frame 2, a spraying piece 13 is fixedly installed in the inside of the drying tower shell 1, the spraying piece 13 is located outside the fixing frame 2, a filtering piece 14 is arranged in the inside of the drying tower shell 1, the filtering piece 14 is designed in a funnel shape, a collecting groove 18 is arranged below the filtering piece 14, the collecting groove 18 is fixedly connected with the drying tower shell 1, a disc 30 is arranged in the inside of the collecting groove 18, the disc 30 is connected with the fixing frame 2 through a conveying mechanism, the upper surface of the disc 30 is inclined, there is a gap between the disc 30 and the collecting groove 18, a plurality of groups of grooves 31 are formed in the inside of the disc 30, the grooves 31 are radially arranged, a rotating disc 32 is rotatably installed above the disc 30, the center of the rotating disc 32 is hollow, the upper end surface of the rotating disc 32 is inclined, an air outlet pipe 33 is fixedly installed below the outer surface of the drying tower shell 1, the air outlet pipe 33 is inclined, a filter plate 34 is fixedly installed at one end of the inside of the drying tower shell 1, a discharge port 35 is formed below the drying tower shell 1.

[0022] Specifically, the hot air is delivered to the inside of the drying tower shell 1 through the air inlet mechanism, the titanium dioxide slurry is sprayed into the inside of the drying tower shell 1 through the material spraying part 13, the titanium dioxide slurry contacts with the hot air, the hot air can dry the titanium dioxide slurry, under the action of gravity, the dried titanium dioxide falls to the surface of the filter part 14, the fine titanium dioxide can pass through the filter part 14 and fall to the bottom of the drying tower shell 1, the agglomerates and the not-dried titanium dioxide stay on the surface of the filter part 14, since the filter part 14 is funnel-shaped, the agglomerates and the not-dried titanium dioxide fall to the inside of the collecting groove 18 along the surface of the filter part 14, in the process, the agglomerates and the not-dried titanium dioxide fall to the surface of the rotating disc 32, since the surface of the rotating disc 32 is inclined, the agglomerates and the not-dried titanium dioxide move to the center of the rotating disc 32 and fall above the disc 30, since the upper surface of the disc 30 is inclined, the agglomerates and the not-dried titanium dioxide can move to the edge of the disc 30 on the surface of the disc 30, at this time, the rotating disc 32 rotates above the disc 30, which can roll the titanium dioxide between the rotating disc 32 and the disc 30, the rolled titanium dioxide can fall to the bottom of the collecting groove 18 through the groove 31, the conveying mechanism can deliver the titanium dioxide at the bottom of the collecting groove 18 to the inside of the drying tower shell 1 above, so that the titanium dioxide can be dried again, which makes the titanium dioxide dry more fully, and the agglomerated titanium dioxide does not need to be crushed after drying, which is beneficial to improve the titanium dioxide drying effect and reduce the cost, the hot air in the inside of the drying tower shell 1 can be discharged through the air outlet pipe 33, the filter plate 34 can filter the air to avoid the titanium dioxide moving with the air, since the air outlet pipe 33 is inclined, the titanium dioxide will not block the filter plate 34, which is beneficial to improve the drying efficiency, and the dried titanium dioxide is discharged through the discharge port 35.

[0023] The air inlet mechanism comprises an air inlet pipe 3 and an air outlet 7, the air inlet pipe 3 penetrates the inside of the drying tower shell 1 above, one end of the air inlet pipe 3 is located in the inside of the fixed frame 2, and the air outlet 7 is arranged on the lower surface of the outer surface of the air inlet pipe 3.

[0024] The air inlet mechanism further comprises a motor 4, the motor 4 is fixedly installed above the drying tower shell 1, the output end of the motor 4 penetrates the drying tower shell 1 and extends into the inside of the fixed frame 2, the output end of the motor 4 is fixedly installed with a rotating shaft 5, and the outer surface of the rotating shaft 5 is fixedly installed with a fan blade 6.

[0025] Specifically, the motor 4 is connected with an external power supply, the motor 4 drives the rotating shaft 5 to rotate in the inside of the fixed frame 2, the rotating shaft 5 drives the fan blade 6 to rotate, at the same time, the air outlet 7 can deliver the hot air to the inside of the fixed frame 2, and the fan blade 6 can make the air in the inside of the fixed frame 2 more uniform when being discharged through the air outlet 7.

[0026] The outer surface of the fixing frame 2 is rotationally sleeved with a protective piece 8, the protective piece 8 is located on the outer surface of the air outlet 7, the inside of the protective piece 8 is fixedly installed with a fixing block 9, the fixing block 9 is inclined, the side of the protective piece 8 away from the fixing frame 2 is provided with a cleaning piece 12, the cleaning piece 12 is rotationally connected with the fixing frame 2 through an elastic piece, and the cleaning piece 12 is in contact with the fixing block 9.

[0027] Specifically, since the fixing block 9 is inclined, when the hot air is discharged through the air outlet 7, the fixing block 9 can guide the hot air, the hot air can rotate around the fixing frame 2, the contact area of the hot air and the titanium dioxide slurry is increased, the drying effect of the titanium dioxide slurry is improved, and the protective piece 8 can be driven to rotate by the hot air, so that the titanium dioxide slurry cannot splash into the inside of the fixing frame 2. In this process, the cleaning piece 12 and the fixing block 9 are in contact, and the titanium dioxide attached to the surface of the fixing block 9 can be cleaned.

[0028] The conveying mechanism includes a pipeline 24, the pipeline 24 is fixedly installed below the fixing frame 2, there is a gap between the lower side of the pipeline 24 and the bottom of the collecting groove 18, the pipeline 24 is fixedly connected with the disc 30, the upper side of the pipeline 24 is provided with a discharging opening, the inside of the pipeline 24 is provided with a rotating rod 23, the rotating rod 23 is fixedly connected with the rotating shaft 5, and the outer surface of the rotating rod 23 is fixedly sleeved with a spiral blade 25.

[0029] Specifically, under the action of the pipeline 24, the rotating shaft 5 can drive the rotating rod 23 to rotate synchronously when the rotating shaft 5 rotates, the rotating rod 23 drives the spiral blade 25 to rotate, so that the titanium dioxide at the bottom of the collecting groove 18 can be conveyed into the upper side of the drying tower shell 1 through the pipeline 24, the titanium dioxide can be dried again, and the drying effect of the titanium dioxide is improved.

[0030] The outer surface of the rotating rod 23 is fixedly installed below a scraper 22, the scraper 22 is inclined, the scraper 22 is rotationally connected with the bottom of the collecting groove 18, and the scraper 22 is connected with the filter piece 14 through an adjusting assembly.

[0031] Specifically, the rotating rod 23 drives the scraper 22 to rotate synchronously when the rotating rod 23 rotates, the scraper 22 can drive the titanium dioxide at the edge of the bottom of the collecting groove 18 to move to the lower side of the pipeline 24, the titanium dioxide in the collecting groove 18 is aggregated, and the conveying effect of the titanium dioxide in the collecting groove 18 is improved.

[0032] The adjusting assembly includes a mounting plate 19, the mounting plate 19 is rotationally installed in the inside of the collecting groove 18, the mounting plate 19 is fixedly connected with the scraper 22, the mounting plate 19 is fixedly connected with the rotating disc 32, the upper side of the mounting plate 19 is fixedly installed with a sleeve 21, the upper side of the sleeve 21 is slidably installed with a rod piece 20, and the rod piece 20 is fixedly connected with the filter piece 14.

[0033] The adjusting assembly further comprises an adjusting piece 26 fixedly installed below the filtering piece 14 and a protrusion 27 fixedly installed above the collecting groove 18, the protrusion 27 and the adjusting piece 26 are in contact and cooperation, and the filtering piece 14 is rotationally connected with the drying tower shell 1 through the elastic structure.

[0034] The elastic structure comprises a groove 15 formed in the outer surface of the filtering piece 14, a rotating seat 11 rotationally installed in the groove 15, a guide groove 10 formed in the inner wall of the drying tower shell 1, and a stand 16 fixedly installed in the guide groove 10 and in sliding connection with the rotating seat 11, and a spring 17 movably sleeved on the outer surface of the stand 16 and fixedly connected with the rotating seat 11.

[0035] Specifically, the scraper 22 can drive the mounting plate 19 to rotate when rotating, and the mounting plate 19 drives the filtering piece 14 to synchronously rotate under the cooperation of the rod piece 20 and the sleeve 21, at this time, the filtering piece 14 drives the adjusting piece 26 to rotate, the adjusting piece 26 is in contact with the protrusion 27 when rotating, the protrusion 27 can push the adjusting piece 26 and the filtering piece 14 to move upward, the filtering piece 14 drives the rod piece 20 to move upward in the sleeve 21, at the same time, the filtering piece 14 drives the rotating seat 11 to move upward on the outer surface of the stand 16, at this time, the spring 17 is deformed under stress, and since the rotating seat 11 rotates through the groove 15 and the filtering piece 14, the filtering piece 14 can rotate while lifting, when the adjusting piece 26 is not in contact with the protrusion 27, the spring 17 can drive the rotating seat 11 to move downward in the guide groove 10, at this time, the filtering piece 14 can move downward.

[0036] A supporting plate 28 is arranged below the filtering piece 14, the supporting plate 28 is inclined, the supporting plate 28 is fixedly connected with the drying tower shell 1, a thorn 29 is fixedly installed on the side of the supporting plate 28 close to the filtering piece 14, and the thorn 29 is in contact and cooperation with the filtering piece 14.

[0037] Specifically, under the action of the supporting plate 28, when the filtering piece 14 moves downward, the filtering piece 14 is in contact with the thorn 29, the thorn 29 can prevent the filtering piece 14 from being blocked, and the filtering piece 14 can rotate, so that the thorn 29 can sequentially process each part of the filtering piece 14.

[0038] Working principle: connect the motor 4 with the external power supply, the motor 4 drives the rotating shaft 5 to rotate inside the fixed frame 2, the rotating shaft 5 drives the fan blade 6 to rotate, at the same time, the air outlet 7 can deliver hot air to the inside of the fixed frame 2, the fan blade 6 can make the air inside the fixed frame 2 more uniform when it is discharged through the air outlet 7, because the fixed block 9 is inclined, so the fixed block 9 can guide the hot air when it is discharged through the air outlet 7, the hot air can rotate around the fixed frame 2, the spraying part 13 sprays titanium dioxide slurry into the inside of the drying tower shell 1, increases the contact area of hot air and titanium dioxide slurry, improves the drying effect of titanium dioxide slurry, at the same time, the hot air can drive the protection part 8 to rotate, so that the titanium dioxide slurry will not splash into the inside of the fixed frame 2, in this process, the cleaning part 12 contacts the fixed block 9, which can clean the titanium dioxide attached to the surface of the fixed block 9.

[0039] The dried titanium dioxide will fall on the surface of the filter part 14, the fine titanium dioxide will pass through the filter part 14 and fall to the bottom of the drying tower shell 1, the agglomerates and the titanium dioxide that is not dried well will stay on the surface of the filter part 14, because the filter part 14 is funnel-shaped, so the agglomerates and the titanium dioxide that is not dried well will fall to the inside of the collection groove 18 along the surface of the filter part 14, in this process, the agglomerates and the titanium dioxide that is not dried well will fall on the surface of the rotating disc 32, because the surface of the rotating disc 32 is inclined, so the agglomerates and the titanium dioxide that is not dried well will move towards the center of the rotating disc 32 and fall above the disc 30, because the upper surface of the disc 30 is inclined, so the agglomerates and the titanium dioxide that is not dried well can move towards the edge of the disc 30 on the surface of the disc 30, at this time, the rotating disc 32 rotates above the disc 30, which can crush the titanium dioxide between the rotating disc 32 and the disc 30, the crushed titanium dioxide can fall to the bottom of the collection groove 18 through the groove 31.

[0040] Under the action of the pipeline 24, the rotating shaft 5 can drive the rotating rod 23 to rotate synchronously when it rotates, the rotating rod 23 drives the spiral blade 25 to rotate, so that the titanium dioxide at the bottom of the collection groove 18 can be delivered to the inside of the drying tower shell 1 above through the pipeline 24, which is convenient for drying the titanium dioxide again, the rotating rod 23 drives the scraper 22 to rotate synchronously when it rotates, the scraper 22 can move the titanium dioxide at the edge of the bottom of the collection groove 18 to the lower part of the pipeline 24, which is convenient for gathering the titanium dioxide inside the collection groove 18 and is conducive to improving the delivery effect of the titanium dioxide inside the collection groove 18.

[0041] The scraper 22 can drive the mounting plate 19 to rotate when rotating, and the mounting plate 19 drives the filter element 14 to rotate synchronously under the cooperation of the rod 20 and the sleeve 21, at this time the filter element 14 drives the adjusting element 26 to rotate, the adjusting element 26 contacts the convex block 27 when rotating, the convex block 27 can push the adjusting element 26 and the filter element 14 to move upwards, the filter element 14 drives the rod 20 to move upwards in the sleeve 21, at the same time, the filter element 14 drives the rotating seat 11 to move upwards on the outer surface of the stand 16, at this time the spring 17 is deformed under stress, since the rotating seat 11 rotates through the slot 15 and the filter element 14, therefore the filter element 14 can rotate while lifting, when the adjusting element 26 does not contact the convex block 27, the spring 17 can drive the rotating seat 11 to move downwards in the guide groove 10, at this time the filter element 14 can move downwards, under the action of the supporting plate 28, when the filter element 14 moves downwards, the filter element 14 contacts the spike 29, the spike 29 can avoid the filter element 14 from being blocked, at the same time, the filter element 14 can rotate, so that the spike 29 can process each part of the filter element 14 in turn.

[0042] The hot gas can be discharged through the air outlet pipe 33 when inside the drying tower shell 1, the filter plate 34 can filter the air to avoid titanium dioxide moving with the air, since the air outlet pipe 33 is inclined, therefore the titanium dioxide cannot block the filter plate 34, which is beneficial to improve the drying efficiency, the dried titanium dioxide is discharged through the discharge port 35.

[0043] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0044] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, the scope of the present application being defined by the appended claims and their equivalents.

Claims

1. A titanium dioxide spray drying tower comprising a drying tower housing (1), characterized in that: The inside of the drying tower shell (1) is fixedly installed with a fixed frame (2), the inside of the fixed frame (2) is provided with an air inlet mechanism, the inside of the drying tower shell (1) is fixedly installed with a material spraying part (13), the material spraying part (13) is located outside the fixed frame (2), the inside of the drying tower shell (1) is provided with a filter part (14), the filter part (14) is designed in a funnel shape, the lower part of the filter part (14) is provided with a collecting groove (18), the collecting groove (18) is fixedly connected with the drying tower shell (1), the inside of the collecting groove (18) is provided with a disc (30), the disc (30) is connected with the fixed frame (2) through a conveying mechanism, the upper surface of the disc (30) is inclined, there is a gap between the disc (30) and the collecting groove (18), a plurality of groups of grooves (31) are formed in the upper part of the disc (30), the plurality of groups of grooves (31) are radially distributed, a rotating disc (32) is rotatably installed on the upper part of the disc (30), the center of the rotating disc (32) is hollow, the upper end surface of the rotating disc (32) is inclined, an air outlet pipe (33) is fixedly installed on the lower part of the outer surface of the drying tower shell (1), the air outlet pipe (33) is inclined, a filter plate (34) is fixedly installed on the inside end of the drying tower shell (1), a discharge port (35) is formed in the lower part of the drying tower shell (1).

2. A titanium dioxide spray drying tower according to claim 1, characterized in that: The air inlet mechanism comprises an air inlet pipe (3) and an air outlet (7), the air inlet pipe (3) penetrates through the inside upper part of the drying tower shell (1), one end of the air inlet pipe (3) is located in the inside of the fixed frame (2), and the air outlet (7) is formed in the lower part of the outer surface of the air inlet pipe (3).

3. A titanium dioxide spray drying tower according to claim 2, characterized in that: The air inlet mechanism further comprises a motor (4), the motor (4) is fixedly installed on the upper part of the drying tower shell (1), the output end of the motor (4) penetrates through the drying tower shell (1) and extends to the inside of the fixed frame (2), the output end of the motor (4) is fixedly installed with a rotating shaft (5), and the outer surface of the rotating shaft (5) is fixedly installed with a fan blade (6).

4. A titanium dioxide spray drying tower according to claim 2, characterized in that: The outer surface of the fixed frame (2) is rotatably sleeved with a protection part (8), the protection part (8) is located on the outer surface of the air outlet (7), the inside of the protection part (8) is fixedly installed with a fixed block (9), the fixed block (9) is inclined, the side, away from the fixed frame (2), of the protection part (8) is provided with a cleaning part (12), the cleaning part (12) is rotatably connected with the fixed frame (2) through an elastic part, and the cleaning part (12) is in contact with the fixed block (9).

5. A spray drying tower for titanium dioxide according to claim 3, characterized in that: The conveying mechanism comprises a pipeline (24) fixedly installed below the fixed frame (2), a gap between the lower portion of the pipeline (24) and the bottom of the collecting groove (18), the pipeline (24) and the disc (30) are fixedly connected, a discharging opening is formed in the upper portion of the pipeline (24), a rotating rod (23) is arranged in the pipeline (24), the rotating rod (23) and the rotating shaft (5) are fixedly connected, and the outer surface of the rotating rod (23) is fixedly sleeved with a spiral blade (25).

6. A titanium dioxide spray drying tower according to claim 5, characterized in that: A scraper (22) is fixedly installed below the outer surface of the rotating rod (23), the scraper (22) is inclined, the scraper (22) and the bottom of the collecting groove (18) are rotationally connected, and the scraper (22) is connected with the filter element (14) through the adjusting assembly.

7. A titanium dioxide spray drying tower according to claim 6, characterized in that: The adjusting assembly comprises a mounting plate (19) rotationally installed in the collecting groove (18), the mounting plate (19) and the scraper (22) are fixedly connected, the mounting plate (19) and the rotating disc (32) are fixedly connected, a sleeve (21) is fixedly installed on the upper portion of the mounting plate (19), a rod (20) is slidingly installed on the upper portion of the sleeve (21), and the rod (20) and the filter element (14) are fixedly connected.

8. A titanium dioxide spray drying tower according to claim 7, characterized in that: The adjusting assembly further comprises an adjusting element (26) and a protruding block (27), the adjusting element (26) is fixedly installed below the filter element (14), the protruding block (27) is fixedly installed above the collecting groove (18), the protruding block (27) and the adjusting element (26) are in contact, and the filter element (14) is rotationally connected with the drying tower shell (1) through the elastic structure.

9. A titanium dioxide spray drying tower according to claim 8, characterized in that: The elastic structure comprises a groove (15) formed in the outer surface of the filter element (14), a rotating seat (11) is rotationally installed in the inner portion of the groove (15), a guide groove (10) is formed in the inner wall of the drying tower shell (1), a stand column (16) is fixedly installed in the inner portion of the guide groove (10), the stand column (16) and the rotating seat (11) are slidingly connected, a spring (17) is movably sleeved on the outer surface of the stand column (16), and the spring (17) and the rotating seat (11) are fixedly connected.

10. A titanium dioxide spray drying tower according to claim 9, characterized in that: A supporting plate (28) is arranged below the filter element (14), the supporting plate (28) is inclined, the supporting plate (28) and the drying tower shell (1) are fixedly connected, a thorn needle (29) is fixedly installed on the side of the supporting plate (28) close to the filter element (14), and the thorn needle (29) and the filter element (14) are in contact.