A nano-titanium dioxide production equipment

Abstract

The utility model discloses a kind of nano titanium dioxide production equipment, belong to titanium dioxide production technical field, solve the existing device by material guide fan blows the titanium dioxide powder in the inside of sieve box, it is easy to cause sieve box inside to be filled with floating dust cloud, then cause the condition of dust explosion to occur, with security hidden trouble problem, including screening bucket, the right side of the screening bucket is provided with crushing grinding assembly and material return component;The inside of the screening bucket is provided with screening assembly. Can be driven with second motor agitator plate along the top surface of screening plate rotation, can make agitator plate agitate the titanium dioxide on the top surface of screening plate, make the titanium dioxide of size qualified pass through screening plate, then the titanium dioxide of size unqualified rotates with agitator plate, when agitator plate passes through feed inlet, the titanium dioxide of size unqualified passes through feed inlet and enters material return component under the action of centrifugal force, can avoid the condition of sieve bucket inside to be filled with floating dust cloud, higher safety.

Description

Technical Field

[0001] This utility model relates to the field of titanium dioxide production technology, specifically to a nano titanium dioxide production equipment. Background Technology

[0002] Nano titanium dioxide, also known as titanium dioxide with a particle size of less than 100 nanometers, appears as a white, loose powder. The production process of nano titanium dioxide requires grinding the crystallized particles to achieve a suitable particle size.

[0003] A search revealed that patent application number 202021928748.5 discloses a nano-titanium dioxide production equipment, including a support platform, a support frame on one side of the top of the support platform, a crushing and grinding chamber inside the support frame, a feed inlet at the top of the crushing and grinding chamber, a return pipe on one side of the crushing and grinding chamber, a feeding paddle inside the return pipe, a sieve box at the middle of the top of the support platform, several guiding fans at the top of the sieve box, a scraper belt at the bottom of the sieve box, a bottom side of the sieve box connected to the return pipe via a discharge inclined pipe, and a collection box on the other side of the top of the support platform, connected to the sieve box via a guide cylinder.

[0004] This nano-titanium dioxide production equipment can perform air classification and sieving of the pulverized and ground nano-titanium dioxide powder for feeding, and can re-grind large-particle-size powder. However, the guide fan of the equipment blows and conveys the material in the sieve box. Titanium dioxide powder is a combustible dust, and under the action of the high-speed airflow of the fan, it is very easy to form a high-concentration suspended dust cloud in the sieve box. Once it encounters an ignition source such as electrostatic discharge or sparks generated by equipment friction, it may cause a dust explosion. At the same time, the high-speed airflow will also increase the friction between the powder and the inner wall of the equipment, further increasing the risk of static electricity accumulation, seriously threatening production safety and the life and health of personnel.

[0005] Therefore, we propose a nano-titanium dioxide production equipment. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a nano titanium dioxide production equipment, which solves the safety hazard problem that existing devices, by blowing titanium dioxide powder inside the sieve box with a guide fan, can easily cause the sieve box to be filled with floating dust clouds, which can then lead to dust explosions.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a nano titanium dioxide production equipment, including a screening barrel, wherein a crushing and grinding component and a material return component are arranged on the right side of the screening barrel, and the material return component is located in front of the crushing and grinding component;

[0008] The screening barrel is equipped with a screening component inside. The top side wall of the screening barrel has a discharge port that communicates with the crushing and grinding component, and the middle side wall of the screening barrel has a feed port that communicates with the return component.

[0009] The screening assembly includes a second motor, a rotating rod, a collar, a stirring plate, and a screening plate. The second motor is fixedly installed inside the screening plate in the screening barrel. The screening plate is truncated conical in shape, and its surface has uniformly distributed screening holes with a diameter of 0.1 micrometers. The second motor is fixedly installed in the middle of the top surface of the screening barrel. The output end of the second motor passes through the top surface of the screening barrel and is fixedly connected to a rotating rod. The bottom end of the rotating rod is rotatably mounted on the top surface of the screening plate through a bearing ring. A collar is fixedly installed on the outer surface of the bottom end of the rotating rod, and a stirring plate matching the contour of the top surface of the screening plate is fixedly installed on the arc surface of the collar.

[0010] Preferably, the bottom of the screening barrel is bucket-shaped, and a discharge pipe is fixedly connected to the middle of the bottom surface of the screening barrel. A gate valve is installed on the discharge pipe. The titanium dioxide entering the screening barrel is screened by the screening components, and the qualified titanium dioxide enters the bottom of the screening barrel and is discharged through the discharge pipe.

[0011] Preferably, the grinding assembly includes a grinding chamber, a feed hopper, and a guide pipe. The feed hopper is fixedly installed on the top surface of the grinding chamber, and a grinding unit is installed inside the grinding chamber. After the peptide liquid is crystallized, it is placed into the feed hopper and then enters the grinding chamber and is ground by the grinding unit inside.

[0012] Preferably, a guide pipe is fixedly installed at the bottom of the crushing and grinding chamber. The bottom of the guide pipe is fixedly installed on the side wall of the screening barrel and connected to the discharge port. The crushed titanium dioxide enters the interior of the screening barrel through the guide pipe.

[0013] Preferably, the return assembly includes a conveying pipe, a discharge pipe, a feeding pipe, a return pipe, and a first motor. A feeding pipe connected to the inlet and inclined downwards is fixedly installed on the side wall of the screening barrel. A discharge pipe inclined downwards is fixedly connected to the right side of the feeding pipe. The titanium dioxide filtered by the screening plate will pass through the inlet and enter the feeding pipe and discharge pipe in sequence under the stirring action of the stirring plate.

[0014] Preferably, the bottom end of the discharge pipe is fixedly connected to the side wall of the bottom end of the conveying pipe. A spiral auger is installed inside the conveying pipe. A first motor is fixedly installed in the middle of the top surface of the conveying pipe. The output end of the first motor passes through the top surface of the conveying pipe and is fixedly connected to the top end of the spiral auger. A return pipe is fixedly installed on the side wall of the top end of the conveying pipe. The end of the return pipe away from the conveying pipe is set downward and communicates with the inner cavity of the feed hopper. The titanium dioxide entering the discharge pipe will enter the bottom end of the conveying pipe and be driven by the first motor to rotate the spiral auger, thus conveying the titanium dioxide upward. Finally, the titanium dioxide enters the interior of the feed hopper through the return pipe, and then enters the interior of the grinding chamber for further grinding.

[0015] This invention provides a nano-titanium dioxide production equipment. It has the following beneficial effects:

[0016] This nano-titanium dioxide production equipment, through the setup of a crushing and grinding component, a return component, and a screening component, pulverizes the titanium dioxide through the crushing and grinding component, screens the titanium dioxide through the screening component, and conveys the unqualified titanium dioxide to the return component, which then transports the unqualified titanium dioxide back to the crushing and grinding component for further pulverization. A second motor drives an agitator plate to rotate along the top surface of the screening plate, causing the agitator plate to stir the titanium dioxide on the top surface of the screening plate. Titanium dioxide of the correct size passes through the screening plate, while unqualified titanium dioxide rotates with the agitator plate. When the agitator plate passes the feed inlet, the unqualified titanium dioxide passes through the feed inlet under the action of centrifugal force and enters the return component. This avoids the situation where the screening bin is filled with floating dust clouds, thus improving safety. It solves the safety hazard problem of existing devices that use a guide fan to blow titanium dioxide powder inside the screening bin, which can easily lead to floating dust clouds inside the screening bin and subsequently dust explosions. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a side view of the structure of this utility model;

[0019] Figure 3 This is a cross-sectional view of the screening assembly behind the screening barrel of this utility model.

[0020] Figure 4 This is a schematic diagram of the screening component structure of this utility model.

[0021] In the diagram: 1. Screening barrel; 11. Discharge pipe; 12. Gate valve; 13. Feed inlet; 14. Discharge outlet; 2. Crushing and grinding assembly; 21. Crushing and grinding chamber; 22. Feed hopper; 23. Guide pipe; 3. Return assembly; 31. Conveying pipe; 32. Discharge pipe; 33. Feeding pipe; 34. Return pipe; 35. First motor; 4. Screening assembly; 41. Second motor; 42. Rotating rod; 43. Collar; 44. Agitator plate; 45. Screening plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1:

[0024] like Figure 1-4 As shown: The screen includes a screening barrel 1. A crushing and grinding assembly 2 and a return assembly 3 are located on the right side of the screening barrel 1, with the return assembly 3 positioned in front of the crushing and grinding assembly 2. A screening assembly 4 is installed inside the screening barrel 1. A discharge port 14, connected to the crushing and grinding assembly 2, is opened on the side wall at the top of the screening barrel 1, and a feed port 13, connected to the return assembly 3, is opened on the side wall in the middle of the screening barrel 1. The screening assembly 4 includes a second motor 41, a rotating rod 42, a collar 43, a stirring plate 44, and a screening plate 45. The second motor 41 is fixedly fitted inside the screening plate 45 inside the screening barrel 1. The screening plate 45 is truncated conical in shape. The surface of the screen plate 45 is provided with uniformly distributed screening holes with a diameter of 0.1 micrometers. A second motor 41 is fixedly installed in the middle of the top surface of the screening barrel 1. The output end of the second motor 41 passes through the top surface of the screening barrel 1 and is fixedly connected to a rotating rod 42. The bottom end of the rotating rod 42 is rotatably installed on the top surface of the screening plate 45 through a bearing ring. A collar 43 is fixedly fitted on the outer surface of the bottom end of the rotating rod 42. An agitator 44 matching the contour of the top surface of the screening plate 45 is fixedly installed on the arc surface of the collar 43. The bottom end of the screening barrel 1 is bucket-shaped. A discharge pipe 11 is fixedly connected in the middle of the bottom surface of the screening barrel 1. A gate valve 12 is installed on the discharge pipe 11.

[0025] The system comprises a grinding and crushing assembly 2, a return assembly 3, and a screening assembly 4. The grinding and crushing assembly 2 grinds the titanium dioxide, the screening assembly 4 screens the titanium dioxide, and the unqualified titanium dioxide is conveyed to the return assembly 3. The return assembly 3 then returns the unqualified titanium dioxide to the grinding and crushing assembly 2 for further grinding. A second motor 41 drives a stirring plate 44 to rotate along the top surface of the screening plate 45, agitating the titanium dioxide on the top surface of the screening plate 45 to ensure that the titanium dioxide is of the correct size. The titanium dioxide powder of the correct size passes through the screening plate 45, while the titanium dioxide powder that does not meet the size requirements rotates together with the stirring plate 44. When the stirring plate 44 passes through the feed inlet 13, the titanium dioxide powder that does not meet the size requirements passes through the feed inlet 13 under the action of centrifugal force and enters the return material component 3. This can avoid the situation where the inside of the screening barrel 1 is filled with floating dust clouds, which is safer. It solves the problem that the existing device blows the titanium dioxide powder inside the screening box by the guide fan, which can easily lead to the inside of the screening box being filled with floating dust clouds, which can then lead to dust explosions and pose a safety hazard.

[0026] Example 2:

[0027] like Figure 1-2 As shown: The crushing and grinding assembly 2 includes a crushing and grinding chamber 21, a feed hopper 22 and a guide pipe 23. The feed hopper 22 is fixedly installed on the top surface of the crushing and grinding chamber 21, and a crushing and grinding unit is installed inside the crushing and grinding chamber 21.

[0028] After the peptide liquid is crystallized, it is placed in the feed hopper 22 and then enters the crushing and grinding chamber 21, where it is crushed by the crushing and grinding unit inside.

[0029] A guide pipe 23 is fixedly installed at the bottom of the crushing and grinding chamber 21. The bottom of the guide pipe 23 is fixedly installed on the side wall of the screening barrel 1 and is connected to the discharge port 14.

[0030] The crushed titanium dioxide enters the screening barrel 1 through the feed pipe 23;

[0031] Example 3:

[0032] like Figure 1-2 As shown: The return assembly 3 includes a conveying pipe 31, a discharge pipe 32, a feeding pipe 33, a return pipe 34 and a first motor 35. A feeding pipe 33 connected to the inlet 13 and inclined downward is fixedly installed on the side wall of the screening barrel 1. A discharge pipe 32 inclined downward is fixedly connected to the right side of the feeding pipe 33.

[0033] The titanium dioxide filtered by the screening plate 45 will pass through the feed inlet 13 and enter the feed pipe 33 and the discharge pipe 32 in sequence under the stirring action of the stirring plate 44.

[0034] The bottom end of the discharge pipe 32 is fixedly connected to the side wall of the bottom end of the conveying pipe 31. A spiral auger is installed inside the conveying pipe 31. A first motor 35 is fixedly installed in the middle of the top surface of the conveying pipe 31. The output end of the first motor 35 passes through the top surface of the conveying pipe 31 and is fixedly connected to the top end of the spiral auger. A return pipe 34 is fixedly installed on the side wall of the top end of the conveying pipe 31. The end of the return pipe 34 away from the conveying pipe 31 is set downward and communicates with the inner cavity of the feed hopper 22.

[0035] The titanium dioxide entering the discharge pipe 32 will enter the bottom of the conveying pipe 31, and the first motor 35 will drive the spiral auger to rotate, thus conveying the titanium dioxide upward. Finally, the titanium dioxide will enter the inside of the feed hopper 22 through the return pipe 34, and then enter the inside of the crushing and grinding chamber 21 for crushing again.

[0036] The working principle and usage process of this utility model: In use, after the peptide liquid crystallization treatment, it is placed into the feed hopper 22, and then pulverized by the pulverizing and grinding unit inside the pulverizing and grinding chamber 21. The pulverized titanium dioxide enters the top of the screening barrel 1 through the guide pipe 23 and falls onto the top surface of the screening plate 45. Simultaneously, the second motor 41 is started to drive the rotating rod 42 to rotate, which in turn causes the collar 43 and the stirring plate 44 to rotate together. The stirring plate 44 agitates the titanium dioxide on the top surface of the screening plate 45, allowing titanium dioxide of the correct size to pass through the screen. Plate 45, and then the titanium dioxide that is not up to size rotates together with the stirring plate 44. Then, when the stirring plate 44 passes through the feed port 13, the titanium dioxide that is not up to size passes through the feed port 13 under the action of centrifugal force and enters the feeding pipe 33 and the discharge pipe 32 in sequence. The titanium dioxide that enters the discharge pipe 32 will enter the bottom end of the conveying pipe 31, and the first motor 35 drives the spiral auger to rotate, which can transport the titanium dioxide upward. Finally, the titanium dioxide enters the interior of the feed hopper 22 through the return pipe 34, and then enters the interior of the crushing and grinding chamber 21 for crushing again.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A nano titanium dioxide production equipment, comprising a screening barrel (1), wherein a crushing and grinding component (2) and a return component (3) are provided on the right side of the screening barrel (1), and the return component (3) is located in front of the crushing and grinding component (2); Its features are: The screening barrel (1) is equipped with a screening component (4) inside. The top side wall of the screening barrel (1) is provided with a discharge port (14) that communicates with the crushing and grinding component (2), and the middle side wall of the screening barrel (1) is provided with a feed port (13) that communicates with the return component (3). The screening assembly (4) includes a second motor (41), a rotating rod (42), a collar (43), an agitator (44), and a screening plate (45). The second motor (41) is fixedly mounted on the screening plate (45) inside the screening barrel (1). The screening plate (45) is truncated conical in shape. The surface of the screening plate (45) is provided with uniformly distributed screening holes with a diameter of 0.1 micrometers. The second motor (41) is fixedly installed in the middle of the top surface of the screening barrel (1). The output end of the second motor (41) passes through the top surface of the screening barrel (1) and is fixedly connected to the rotating rod (42). The bottom end of the rotating rod (42) is rotatably mounted on the top surface of the screening plate (45) through a bearing ring. The outer surface of the bottom end of the rotating rod (42) is fixedly fitted with a collar (43). An agitator (44) matching the contour of the top surface of the screening plate (45) is fixedly installed on the arc surface of the collar (43).

2. The nano-titanium dioxide production equipment according to claim 1, characterized in that: The bottom of the screening barrel (1) is shaped like a bucket, and a discharge pipe (11) is fixedly connected to the middle of the bottom surface of the screening barrel (1). A gate valve (12) is installed on the discharge pipe (11).

3. The nano-titanium dioxide production equipment according to claim 1, characterized in that: The crushing and grinding assembly (2) includes a crushing and grinding chamber (21), a feeding hopper (22) and a guide pipe (23). The feeding hopper (22) is fixedly installed on the top surface of the crushing and grinding chamber (21), and a crushing and grinding unit is provided inside the crushing and grinding chamber (21).

4. The nano-titanium dioxide production equipment according to claim 3, characterized in that: The bottom end of the crushing and grinding chamber (21) is fixedly installed with a guide pipe (23), and the bottom end of the guide pipe (23) is fixedly installed on the side wall of the screening barrel (1) and connected to the discharge port (14).

5. The nano-titanium dioxide production equipment according to claim 3, characterized in that: The return assembly (3) includes a conveying pipe (31), a discharge pipe (32), a feeding pipe (33), a return pipe (34), and a first motor (35). A feeding pipe (33) connected to the inlet (13) and inclined downward is fixedly installed on the side wall of the screening barrel (1). A discharge pipe (32) inclined downward is fixedly connected to the right side of the feeding pipe (33).

6. The nano-titanium dioxide production equipment according to claim 5, characterized in that: The bottom end of the discharge pipe (32) is fixedly connected to the side wall of the bottom end of the conveying pipe (31). The conveying pipe (31) is equipped with a spiral auger. A first motor (35) is fixedly installed in the middle of the top surface of the conveying pipe (31). The output end of the first motor (35) passes through the top surface of the conveying pipe (31) and is fixedly connected to the top end of the spiral auger. A return pipe (34) is fixedly installed on the side wall of the top end of the conveying pipe (31). The end of the return pipe (34) away from the conveying pipe (31) is set downward and communicates with the inner cavity of the feed hopper (22).

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