Stirring device of continuous acidolysis primary dissolving tank

Abstract

The utility model belongs to the technical field of titanium dioxide chemical industry, and relates to a continuous acidolysis one-time dissolving tank stirring device which comprises a motor and a stirring fan, the motor is located on the top face of a dissolving tank, the stirring fan is located in the dissolving tank and connected with the driving end of the motor, and the driving end of the motor is connected with the stirring fan through a transmission roller. A stirring enhancing paddle is further installed on the transmission roller, a filter screen is installed at the position, close to the discharging port, of the transmission roller, and a vertical paddle is installed on the stirring fan. According to the stirring device, the stirring effect of the stirring device is enhanced by adding the stirring enhancing paddle and the vertical paddle, and particularly aiming at a stirring dead angle area, the dissolving efficiency is remarkably improved, and deposition and accumulation of material powder in the stirring dead angle area are reduced, so that the abrasion degree of the stirring paddle is reduced, and the service life of the stirring device is prolonged. And the filter screen effectively filters out solid particles which are not completely dissolved, so that the problem of blockage of the discharge hole is avoided.

Description

Technical Field

[0001] This utility model relates to the field of titanium dioxide chemical technology, and in particular to a stirring device for a continuous acid hydrolysis primary dissolution tank. Background Technology

[0002] In the continuous acid hydrolysis process of titanium dioxide powder, the stirring device of the primary dissolution tank plays a crucial role. Its core design objective is to ensure the complete dissolution of the reaction solids within the reactor to achieve the preset solubility requirements. The efficiency of the stirring device directly affects the dissolution rate and uniformity of the reaction products within the dissolution tank, and has a significant and decisive impact on maintaining the continuity and efficiency of the entire acid hydrolysis process.

[0003] However, in actual industrial production applications, this stirring device frequently exhibits the problem of dead zones during operation. Especially during continuous acid hydrolysis, when continuous feeding is required, manual feeding is unstable. If the feeding amount is too large, some powder is prone to deposit and accumulate in these dead zones. Long-term titanium dioxide powder deposition not only significantly reduces dissolution efficiency but also exacerbates the wear of the stirring blades. In severe cases, it can even cause blockage of the discharge port, thus posing a significant threat to the stable operation of the entire production line. Utility Model Content

[0004] To solve the above-mentioned existing technical problems, this utility model provides a continuous acid hydrolysis primary dissolution tank stirring device.

[0005] The technical solution of this utility model is achieved through the following scheme: a continuous acid hydrolysis primary dissolution tank stirring device, including a dissolution tank, a stirring device, stirring enhancement blades and a quantitative feeding component, wherein the top of the dissolution tank is equipped with a quantitative feeding component and a liquid inlet pipe, the bottom surface of the dissolution tank is provided with a discharge port, the dissolution tank is provided with a stirring device, and stirring enhancement blades are installed on the stirring device;

[0006] The stirring device includes a motor and a stirring fan. The motor is located on the top surface of the dissolving tank, and the stirring fan is located inside the dissolving tank. The stirring fan is connected to the motor drive end, and the motor drive end is connected to the stirring fan through a transmission roller. The transmission roller is also equipped with stirring-enhancing blades. A filter screen is installed near the discharge port of the transmission roller, and vertical blades are installed on the stirring fan.

[0007] The above technical solutions enhance the mixing effect of the mixing device by adding stirring blades and vertical blades. In particular, it significantly improves the dissolution efficiency in the dead mixing area, reduces the deposition and accumulation of powder in the dead mixing area, thereby reducing the wear of the stirring blades. The filter screen effectively filters out undissolved solid particles and avoids the problem of clogging at the discharge port.

[0008] Preferably, the stirring-enhancing impeller includes a gate-shaped stirring fan, a bottom stirring plate, and a propeller blade. The gate-shaped stirring fan, the bottom stirring plate, and the propeller blade are all connected to the drive roller. The filter screen is located between the bottom stirring plate and the propeller blade. The propeller blade is located inside the discharge port. The bottom stirring plate is located below the gate-shaped stirring fan.

[0009] Preferably, the sidewall of the gantry-shaped stirring fan is closely attached to the inner wall of the dissolving tank, and the gantry-shaped stirring fan, the bottom stirring plate, and the vertical blades are all provided with material breaking blades.

[0010] Through the above technical solution, the gate-type stirring fan, the bottom stirring plate, and the propeller blades are all connected to the drive roller, forming a multi-layer stirring system. The filter screen ensures that undissolved solid particles are lifted by the bottom stirring plate during the stirring process, filtered by the filter screen, and then guided to the discharge port by the propeller blades, effectively preventing the discharge port from clogging. The propeller blades are located inside the discharge port to ensure that the solution in the discharge port does not settle. The gate-type stirring fan and the bottom stirring plate ensure the maximum stirring range, effectively reducing the stirring dead zone area and avoiding the deposition and accumulation of solid particles in these areas.

[0011] Preferably, the quantitative feeding assembly includes a feeding cylinder, a feeding motor, a discharge blade, and a receiving and adjusting assembly. The discharge blade is mounted inside the feeding cylinder via a rotating roller. The driving end of the feeding motor is connected to one end of the rotating roller, and the other end of the rotating roller is mounted on the receiving and adjusting assembly.

[0012] Preferably, the discharge cylinder is detachably fitted with a cover, the discharge blade is cross-shaped and adapted to the discharge cylinder, and the feeding motor and the receiving adjustment assembly are both fixedly installed on the melting tank via overlapping plates.

[0013] Preferably, the bottom of the filter screen abuts against the dissolving tank.

[0014] Preferably, both the liquid inlet pipe and the discharge port are equipped with electric valves.

[0015] Through the above technical solutions, the cross-shaped design of the unloading blade and the drive of the feeding motor achieve uniform and stable feeding of raw materials, avoiding the problems of material powder deposition and accumulation caused by unstable manual feeding. The feeding speed can be adapted to the receiving and adjusting components to achieve stable feeding.

[0016] In summary, this utility model has the following beneficial effects:

[0017] 1. This utility model enhances the stirring effect of the stirring device by adding stirring and vertical blades, especially for the stirring dead zone area, significantly improving the dissolution efficiency and reducing the deposition and accumulation of powder in the stirring dead zone area, thereby reducing the wear of the stirring blades. The filter screen effectively filters out undissolved solid particles and avoids the problem of clogging at the discharge port.

[0018] 2. The gate-type stirring fan, bottom stirring plate, and propeller blades are all connected to the drive roller, forming a multi-layered stirring system. The filter screen ensures that undissolved solid particles are lifted by the bottom stirring plate during the stirring process, filtered by the filter screen, and then guided to the discharge port by the propeller blades, effectively preventing clogging of the discharge port. The propeller blades are located inside the discharge port to ensure that the solution in the discharge port does not settle. The gate-type stirring fan and the bottom stirring plate ensure the maximum stirring range, effectively reducing the stirring dead zone area and avoiding the deposition and accumulation of solid particles in these areas.

[0019] 3. Through the cross-shaped design of the unloading blade and the drive of the feeding motor, the uniform and stable feeding of raw materials is achieved, avoiding the problems of material powder deposition and accumulation caused by the instability of manual feeding. The feeding speed can be adapted to the receiving adjustment component to achieve stable feeding. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0021] Figure 2 This is a half-sectional structural diagram of the dissolving tank of this utility model;

[0022] Figure 3 This is a schematic diagram of the assembly structure of the stirring device and the stirring-enhancing blade of this utility model.

[0023] Figure 4 yes Figure 3 Enlarged schematic diagram of the structure at point A;

[0024] Figure 5 This is a three-dimensional structural diagram of the quantitative feeding component of this utility model;

[0025] Figure 6 This is a schematic diagram of the internal structure of the quantitative feeding component of this utility model.

[0026] Explanation of reference numerals in the attached drawings: 1. Dissolving tank; 2. Stirring device; 21. Motor; 22. Stirring fan; 3. Stirring enhancement blade; 31. Gate-shaped stirring fan; 32. Bottom stirring plate; 33. Propeller blade; 4. Filter screen; 5. Vertical blade; 6. Quantitative feeding assembly; 61. Discharge cylinder; 62. Feeding motor; 63. Rotating roller; 64. Discharge blade; 65. Receiving and adjusting assembly; 7. Liquid inlet pipe; 8. Discharge port; 9. Electric valve; 10. Overlap plate. Detailed Implementation

[0027] To better understand the above-mentioned objectives, features and advantages of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification. The present invention will be further described in detail below with reference to the accompanying drawings.

[0029] A continuous acid hydrolysis primary dissolution tank stirring device, such as Figures 1-6 As shown, the system includes a dissolving tank 1, a stirring device 2, stirring-enhancing blades 3, and a quantitative feeding assembly 6. The quantitative feeding assembly 6 and a liquid inlet pipe 7 are installed on the top of the dissolving tank 1. A discharge port 8 is provided on the bottom surface of the dissolving tank 1. The stirring device 2 is located inside the dissolving tank 1, and stirring-enhancing blades 3 are installed on it. The stirring device 2 includes a motor 21 and a stirring fan 22. The motor 21 is located on the top surface of the dissolving tank 1, and the stirring fan 22 is located inside the dissolving tank 1. The stirring fan 22 is connected to the drive end of the motor 21, which is connected to the stirring fan 22 via a transmission roller. Stirring-enhancing blades 3 are also installed on the transmission roller. A filter screen 4 is installed near the discharge port 8 on the transmission roller. Vertical blades 5 are installed on the stirring fan 22.

[0030] Adding stirring blades 3 and vertical blades 5 avoids the problem of dead zones at the bottom of the tank, ensuring uniform stirring and complete dissolution of the titanium dioxide powder. This prevents insufficient dissolution at the bottom of the dissolution tank 1 from causing scaling and affecting normal stirring operation. The number of vertical blades 5 is preferably six, arranged in an array on the lower surface of the stirring fan 22, with three blades below each of the two fan blades of the stirring fan 22. The drive end of the motor 21 is connected to the transmission roller inside the dissolution tank 1. The bottom of the filter screen 4 abuts against the dissolution tank 1. The filter screen 4 prevents incompletely dissolved titanium dioxide powder from entering the discharge port 8. The filter screen 4 is shaped like a frustum, with the small round top connected to the transmission roller and the large round bottom covering the discharge port 8. When the transmission roller rotates, it drives the filter screen 4 to rotate, and the centrifugal force throws the titanium dioxide powder on the filter screen 4 away, preventing clogging of the filter screen 4 and thus avoiding increasing the service life of the filter screen 4.

[0031] Both the upper liquid pipe 7 and the discharge port 8 are equipped with electric valves 9. The stirring-enhancing impeller 3 includes a gantry-shaped stirring fan 31, a bottom stirring plate 32, and a propeller blade 33. The gantry-shaped stirring fan 31, the bottom stirring plate 32, and the propeller blade 33 are all connected to the drive roller. The filter screen 4 is located between the bottom stirring plate 32 and the propeller blade 33. The propeller blade 33 is located inside the discharge port 8, and the bottom stirring plate 32 is located below the gantry-shaped stirring fan 31. The propeller blade 33 is located entirely above the electric valve 9 inside the discharge port 8, providing real-time stirring of the liquid in the discharge port 8 and further preventing sedimentation. The filter screen 4 and the propeller blade 33 provide double protection, effectively preventing material sedimentation in the discharge port 8. To prevent clogging and ensure smooth material discharge, the mixing fan 22 and vertical blade 5 are located within the portal space of the portal mixing fan 31. The side wall of the portal mixing fan 31 is in close contact with the inner wall of the dissolving tank 1 to clean the side wall of the dissolving tank 1. The side wall of the portal mixing fan 31 is arc-shaped to reduce friction with the side wall and extend the service life of the mixing fan 22 and the dissolving tank 1. The portal mixing fan 31, the bottom mixing plate 32, and the vertical blade 5 are all equipped with breaking blades to ensure that the material is stirred in all directions and at multiple angles within the dissolving tank 1, thereby improving the dissolving efficiency. The breaking blades further enhance the stirring effect and also play a role in liquid diversion, crushing and dispersing of material powder precipitates, thus improving the dissolving efficiency.

[0032] The quantitative feeding component 6 includes a feeding cylinder 61, a feeding motor 62, a discharge blade 64, and a receiving and adjusting component 65. The discharge blade 64 is mounted inside the feeding cylinder 61 via a rotating roller 63. The drive end of the feeding motor 62 is connected to one end of the rotating roller 63, and the other end of the rotating roller 63 is mounted on the receiving and adjusting component 65. The feeding motor 62 drives the rotating blade to rotate, thereby quantitatively feeding titanium dioxide powder. A cover is detachably installed on the feeding cylinder 61. The discharge blade 64 is cross-shaped, with a cross-shaped cross section, consisting of two circular blocks that fit the feeding cylinder 61 and are welded together at a 90-degree angle. The rotating roller 63 is keyed to the center of the cross section, driving the discharge blade 64 to rotate. Each rotation carries away a certain amount of titanium dioxide powder. The discharge blade 64 is adapted to the feeding cylinder 61, thus... This design ensures uniform unloading and makes the entire component structure compact and space-saving. The feeding motor 62 and the receiving adjustment component 65 are both fixedly installed on the melting tank 1 via the overlapping plate 10. The receiving adjustment component is L-shaped and contains receiving wheels arranged in an L-shaped array. The corners have circular grooves that match the rotating roller 63 to ensure that it will not detach during rotation, thus improving the reliability of the device. It can also adapt to different unloading speeds, perfectly adapting to changes in unloading speed, improving the safety of the unloading process and the service life of the device. It can maintain stable operation regardless of whether the unloading speed is fast or slow, avoiding malfunctions or safety issues caused by speed changes. The rotating roller 63 can be easily removed for replacement and maintenance simply by disconnecting the unloading roller from the feeding motor 62.

[0033] Working principle: The staff puts titanium dioxide powder into the feeding cylinder 61 and begins to inject liquid. During the liquid injection process, the feeding motor 62 is started to drive the unloading blade 64 to rotate and discharge the material.

[0034] Furthermore, the motor 21 drives the stirring fan 22, the stirring enhancement blade 3, and the vertical blade 5 to carry out all-round stirring and dissolution, ensuring that the powder will not settle. The transmission roller drives the filter screen 4 to throw out the powder filtered by the filter screen 4, ensuring that the outlet 8 contains a fully dissolved solution.

[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A stirring device for a continuous acid hydrolysis primary dissolution tank, characterized in that: It includes a dissolving tank (1), a stirring device (2), a stirring-enhancing blade (3), and a quantitative feeding component (6). The top of the dissolving tank (1) is equipped with a quantitative feeding component (6) and a liquid inlet pipe (7). The bottom surface of the dissolving tank (1) is provided with a discharge port (8). The dissolving tank (1) is equipped with a stirring device (2), and the stirring device (2) is equipped with a stirring-enhancing blade (3). The stirring device (2) includes a motor (21) and a stirring fan (22). The motor (21) is located on the top surface of the dissolving tank (1), and the stirring fan (22) is located inside the dissolving tank (1). The stirring fan (22) is connected to the driving end of the motor (21). The driving end of the motor (21) is connected to the stirring fan (22) through a transmission roller. The transmission roller is also equipped with stirring-enhancing blades (3). A filter screen (4) is installed near the discharge port (8) on the transmission roller. Vertical blades (5) are installed on the stirring fan (22).

2. The continuous acid hydrolysis primary dissolution tank stirring device according to claim 1, characterized in that: The stirring-enhancing blade (3) includes a gate-shaped stirring fan (31), a bottom stirring plate (32), and a propeller blade (33). The gate-shaped stirring fan (31), the bottom stirring plate (32), and the propeller blade (33) are all connected to the drive roller. The filter screen (4) is located between the bottom stirring plate (32) and the propeller blade (33). The propeller blade (33) is located inside the discharge port (8). The bottom stirring plate (32) is located below the gate-shaped stirring fan (31).

3. The continuous acid hydrolysis primary dissolution tank stirring device according to claim 2, characterized in that: The side wall of the gate-shaped stirring fan (31) is closely attached to the inner wall of the dissolving tank (1), and the gate-shaped stirring fan (31), the bottom stirring plate (32) and the vertical blade (5) are all provided with material breaking blades.

4. The continuous acid hydrolysis primary dissolution tank stirring device according to claim 1, characterized in that: The quantitative feeding component (6) includes a feeding cylinder (61), a feeding motor (62), a discharge blade (64), and a receiving adjustment component (65). The discharge blade (64) is mounted inside the feeding cylinder (61) via a rotating roller (63). The driving end of the feeding motor (62) is connected to one end of the rotating roller (63), and the other end of the rotating roller (63) is mounted on the receiving adjustment component (65).

5. The continuous acid hydrolysis primary dissolution tank stirring device according to claim 4, characterized in that: The discharge cylinder (61) is detachably fitted with a cover. The discharge blade (64) is cross-shaped and is adapted to the discharge cylinder (61). The feeding motor (62) and the receiving adjustment assembly (65) are both fixedly installed on the melting tank (1) through the overlapping plate (10).

6. The continuous acid hydrolysis primary dissolution tank stirring device according to claim 1, characterized in that: The bottom of the filter screen (4) abuts against the dissolving tank (1).

7. The continuous acid hydrolysis primary dissolution tank stirring device according to claim 1, characterized in that: Both the upper liquid pipe (7) and the discharge port (8) are equipped with electric valves (9).

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