Anti-precipitation stirring device based on tricresyl phosphite raw material and use method

Abstract

The invention relates to the technical field of tricresyl phosphite raw material mixing, in particular to a tricresyl phosphite raw material-based anti-precipitation stirring device and a using method thereof, the tricresyl phosphite raw material-based anti-precipitation stirring device comprises a rack, a stirring barrel and a speed reducing motor, the upper end of the rack is fixedly connected with the speed reducing motor through a flange and a bolt, and a main shaft of the speed reducing motor penetrates through the upper end of the rack and is fixedly connected with a linkage assembly; the outer side of the lower end of the linkage assembly is provided with a bottom bearing, the bottom bearing is installed in the middle of the bottom end of the stirring barrel, the middle of the stirring barrel is fixedly connected with a cylindrical net through a connecting plate, and the outer side of the linkage assembly is provided with multiple sets of stirring blades which are annularly distributed; the linkage assembly comprises a hollow high-strength stirring rod, a negative pressure hole is formed in the upper end of the high-strength stirring rod, and a limiting mechanism is fixedly connected to the inner side of the upper end of the high-strength stirring rod. According to the method, the problems that TCP micro-hydrolysis is promoted by high temperature and shearing, acidic phosphate and free cresol are generated, the acid value is increased, the chromaticity turns yellow, and the shaft seal is corroded are effectively prevented.

Description

Technical Field

[0001] This invention relates to an anti-precipitation stirring device and its usage method based on tricresol phosphite raw material, belonging to the field of tricresol phosphite raw material mixing technology. Background Technology

[0002] The anti-sedimentation stirring device is a "cylinder-in-cylinder" turning mechanism set up in the tank: the rotating rod drives the spiral blades to continuously draw the bottom tricresol phosphite raw material into the cylinder, and then spray it back to the top or middle of the tank through the first and second stirring pipes at different heights, forming a forced circulation from bottom to top; at the same time, the tank wall baffle rings fold back the sprayed liquid, realizing real-time turning, breaking the stratification, and ensuring that the high viscosity TCP and solid additives are always homogeneous, thereby preventing soft sedimentation and improving batch consistency and production quality.

[0003] In existing stirring devices, the shear heat at the blade tip cannot be dissipated in time during the stirring process, and the local temperature rise can reach 15–20 ℃. High temperature and shear will promote micro-hydrolysis of TCP, generating acidic phosphate esters and free cresol, which will increase the acid value, turn yellow, and corrode the shaft seal. Therefore, it is urgent to improve the anti-precipitation stirring device and its usage method based on tricresol phosphite raw material to solve the above-mentioned problems. Summary of the Invention

[0004] The purpose of this invention is to provide an anti-precipitation stirring device and its usage method based on tricresol phosphite raw material, in order to solve the problem that in the existing stirring device, the shear heat at the blade tip cannot be diffused in time during the stirring process, and the local temperature rise can reach 15-20 ℃. High temperature + shear will promote micro-hydrolysis of TCP, generating acidic phosphate esters and free cresol, which will increase the acid value, turn yellow, and corrode the shaft seal.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A sedimentation-preventing stirring device and its usage method based on tricresol phosphite raw material includes a frame, a stirring drum, and a geared motor. The geared motor is fixedly connected to the upper end of the frame via flanges and bolts. The main shaft of the geared motor passes through the upper end of the frame and is fixedly connected to a linkage assembly. The linkage assembly has a bottom bearing installed on the outer side of its lower end. The bottom bearing is installed in the middle of the bottom of the stirring drum. A columnar mesh is fixedly connected to the middle of the stirring drum via a connecting plate. Multiple sets of annularly distributed stirring blades are installed on the outer side of the linkage assembly. The linkage assembly includes a hollow high-strength stirring rod with a negative pressure hole at its upper end. A limit mechanism is fixedly connected to the inner side of the upper end of the high-strength stirring rod. An anti-sway assembly is installed at the lower end of the high-strength stirring rod, and a coating mechanism is provided at the upper end of the anti-sway assembly. Coolant is placed at the bottom of the high-strength stirring rod, and the overall cross-section of the high-strength stirring rod is T-shaped.

[0007] Preferably, the inner edge of the negative pressure hole is arc-shaped, and the top and bottom of the high-strength stirring rod are sealed.

[0008] Preferably, the limiting mechanism includes a limiting plate, a limiting rod is fixedly connected in the middle of the limiting plate, the included angle between the limiting plate and the limiting rod is 90°, the two ends of the limiting plate are welded and fixed to the inner wall of the high-strength stirring rod, and the bottom end of the limiting rod is hemispherical.

[0009] Preferably, the coating mechanism includes a piston plate, a movable column slidably connected to the center of the piston plate via a sealing ring, six through holes annularly formed in the center of the movable column, a horizontal plate fixedly connected to the upper end of the movable column, a circular plate fixedly connected to the bottom end of the movable column, a telescopic spring installed at the upper end of the circular plate, elastic plates installed on both sides of the lower end of the circular plate, one end of the elastic plate being welded and fixed to a vertical rod, a support ring plate fixedly connected to the lower end of the movable column, and a coating layer of sponge material fixedly connected to the outer side of the support ring plate.

[0010] Preferably, the upper end of the movable column is hollow, the through hole is connected to the hollow position of the movable column, and the center point of the movable column, the limiting rod, and the horizontal plate are set on the same vertical line.

[0011] Preferably, there are two sealing rings, the through hole is disposed between the sealing rings, the telescopic spring is disposed on the outside of the movable column, and the upper and lower ends of the telescopic spring are fixedly connected to the piston plate and the circular plate, respectively.

[0012] Preferably, the upper and lower edges of the circular plate are both arc-shaped, and there are two vertical rods and two elastic plates. The two vertical rods are parallel to each other, and the upper end of the vertical rod is fixedly connected to the piston plate. The included angle between the vertical rod and the elastic plate is 90°, and the upper and lower sides of the elastic plate away from the vertical rod are both arc-shaped.

[0013] Preferably, the anti-sway component includes a buoyancy plate, and the buoyancy plate has multiple circular holes inside.

[0014] Preferably, the buoyancy plate and the high-strength stirring rod are adapted to each other, and the vertical cross-section of the buoyancy plate has a U-shaped transverse projection.

[0015] Preferably, it includes the following steps:

[0016] Step 1: Place coolant inside the bottom of the high-strength stirring rod. After placing the coolant, place the tricrete phosphite raw material to be stirred into the stirring drum. After the tricrete phosphite raw material is placed, the geared motor is powered by external industrial three-phase electricity and controlled by the controller.

[0017] Step 2: During the operation of the geared motor, the linkage component is driven to rotate at high speed. During the high-speed rotation of the linkage component, multiple stirring blades are driven to rotate simultaneously to stir the tricrete phosphite raw material. During the stirring process, the tricrete phosphite raw material circulates around the cylindrical mesh to prevent the tricrete phosphite raw material from stratifying and settling.

[0018] Step 3: During the high-speed rotation of the high-strength stirring rod, the air inside it is discharged through the negative pressure hole, making the inside of the high-strength stirring rod a negative pressure state. This causes the piston plate to move upward as a whole. The coolant is coated onto the inner wall of the high-strength stirring rod through the coating layer. During the operation of the high-strength stirring rod, the temperature rise causes the coolant coated onto the inner wall of the high-strength stirring rod to evaporate. The evaporation of the coolant increases the pressure inside the high-strength stirring rod at the lower end of the piston plate. Combined with the negative pressure at the upper end of the piston plate, this causes the piston plate to move upward.

[0019] Step 4: When the piston plate moves to the limit rod and contacts the horizontal plate, it pushes the movable column downward and moves the circular plate to the lower end of the elastic plate.

[0020] Step 5: At this point, the through hole moves to the lower end of the piston plate, releasing the pressure inside the piston plate. Under the action of gravity, the piston plate moves downward and comes into contact with the coolant at the upper end of the buoyancy plate, pushing the circular plate to the upper end of the elastic plate. This cycle is repeated to cool the high-strength stirring rod.

[0021] This invention has at least the following beneficial effects:

[0022] 1. In this invention, through the set linkage components, during the stirring and mixing process, the interior of the high-strength stirring rod is continuously coated with coolant to continuously dissipate heat from the high-strength stirring rod, further cooling the stirring blades, so that the shear heat at the blade tip can be diffused in time, effectively preventing the problems of high temperature + shear-induced TCP micro-hydrolysis, generating acidic phosphate esters and free cresol, increasing acid value, yellowing color, and corroding shaft seals.

[0023] 2. In this invention, through the coating mechanism, during the operation of the device, the negative pressure hole generates negative pressure at the upper end of the high-strength stirring rod, and combined with the evaporation at the lower end of the piston plate, high pressure is formed, which pushes the piston plate to move upward without the need for a power source, and the movable column is automatically opened and reset when the piston plate moves to a specific position.

[0024] 3. In this invention, the anti-sway component can effectively prevent the coolant placed at the bottom of the high-strength stirring rod from shaking too much during the stirring process, thus affecting the stable operation of the high-strength stirring rod. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the linkage component structure of the present invention;

[0027] Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A in the middle;

[0028] Figure 4 This is a schematic diagram of the limiting mechanism structure of the present invention;

[0029] Figure 5 This is a schematic diagram of the coating mechanism structure of the present invention;

[0030] Figure 6 For the present invention Figure 5 Enlarged structural diagram at point B;

[0031] Figure 7 This is a schematic diagram of the anti-sway component structure of the present invention;

[0032] Figure 8 This is a cross-sectional view of the buoyancy plate of the present invention.

[0033] In the diagram, 1. Frame; 2. Mixing drum; 3. Bottom bearing;

[0034] 4. Linkage components; 41. High-strength stirring rod; 42. Negative pressure hole;

[0035] 43. Limiting mechanism; 431. Limiting plate; 432. Limiting rod;

[0036] 44. Coating mechanism; 441. Piston plate; 442. Coating layer; 443. Support ring plate; 444. Movable column; 445. Horizontal plate; 446. Through hole; 447. Sealing ring; 448. Telescopic spring; 449. Circular plate; 4410. Vertical rod; 4411. Elastic plate;

[0037] 45. Anti-sway components; 451. Buoyancy plate; 452. Round holes;

[0038] 5. Agitator blades; 6. Columnar mesh; 7. Gear motor; 8. Connecting plate. Detailed Implementation

[0039] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0040] like Figures 1-8As shown, the anti-precipitation stirring device and its usage method based on tricresol phosphite raw material provided in this embodiment include a frame 1, a stirring drum 2 and a geared motor 7. The geared motor 7 is fixedly connected to the upper end of the frame 1 by a flange and bolts. The main shaft of the geared motor 7 passes through the upper end of the frame 1 and is fixedly connected to the linkage assembly 4. The linkage assembly 4 has a bottom bearing 3 installed on the outer side of its lower end. The bottom bearing 3 is installed in the middle of the bottom end of the stirring drum 2. A columnar mesh 6 is fixedly connected to the middle of the stirring drum 2 by a connecting plate 8. Multiple sets of ring-shaped stirring blades 5 are installed on the outer side of the linkage assembly 4.

[0041] The linkage component 4 includes a hollow high-strength stirring rod 41, a negative pressure hole 42 is opened at the upper end of the high-strength stirring rod 41, a limit mechanism 43 is fixedly connected to the inner side of the upper end of the high-strength stirring rod 41, an anti-sway component 45 is installed at the lower end of the high-strength stirring rod 41, and a coating mechanism 44 is provided at the upper end of the anti-sway component 45.

[0042] The bottom of the high-strength stirring rod 41 is filled with coolant, and the overall cross-section of the high-strength stirring rod 41 is T-shaped.

[0043] The inner edge of the negative pressure hole 42 is arc-shaped, and the top and bottom of the high-strength stirring rod 41 are sealed.

[0044] The limiting mechanism 43 includes a limiting plate 431, a limiting rod 432 is fixedly connected in the middle of the limiting plate 431, the included angle between the limiting plate 431 and the limiting rod 432 is 90°, the two ends of the limiting plate 431 are welded and fixed to the inner wall of the high-strength stirring rod 41, and the bottom end of the limiting rod 432 is hemispherical.

[0045] The coating mechanism 44 includes a piston plate 441, a movable column 444 slidably connected to the piston plate 441 through a sealing ring 447, six through holes 446 in a ring shape in the middle of the movable column 444, a horizontal plate 445 fixedly connected to the upper end of the movable column 444, a circular plate 449 fixedly connected to the bottom end of the movable column 444, a telescopic spring 448 installed on the upper end of the circular plate 449, elastic plates 4411 installed on both sides of the lower end of the circular plate 449, one end of the elastic plate 4411 is welded and fixed to the vertical rod 4410, a support ring plate 443 fixedly connected to the lower end of the movable column 444, and a coating layer 442 of sponge material fixedly connected to the outside of the support ring plate 443.

[0046] The upper end of the movable column 444 is hollow, and the through hole 446 is connected to the hollow position of the movable column 444. The center points of the movable column 444, the limiting rod 432, and the horizontal plate 445 are set on the same vertical line.

[0047] Two sealing rings 447 are provided, and through holes 446 are provided between the sealing rings 447. The telescopic spring 448 is provided on the outside of the movable column 444, and the upper and lower ends of the telescopic spring 448 are fixedly connected to the piston plate 441 and the circular plate 449, respectively.

[0048] The upper and lower edges of the circular plate 449 are both arc-shaped. There are two vertical rods 4410 and two elastic plates 4411. The two vertical rods 4410 are parallel to each other, and the upper end of the vertical rod 4410 is fixedly connected to the piston plate 441. The angle between the vertical rod 4410 and the elastic plate 4411 is 90°. The upper and lower sides of the end of the elastic plate 4411 away from the vertical rod 4410 are both arc-shaped.

[0049] The anti-sway component 45 includes a buoyancy plate 451, and the buoyancy plate 451 has multiple round holes 452 inside.

[0050] The buoyancy plate 451 is compatible with the high-strength stirring rod 41, and the vertical cross-section of the buoyancy plate 451 has a U-shaped transverse projection.

[0051] like Figures 1-8 As shown in this embodiment, the principle of the anti-precipitation stirring device and its usage method based on tricresyl phosphite raw material is as follows:

[0052] Includes the following steps:

[0053] Step 1: Place coolant inside the bottom of the high-strength stirring rod 41. After placement, place the tricresol phosphite raw material to be stirred into the stirring drum 2. After the tricresol phosphite raw material is placed, the geared motor 7 is powered by external industrial three-phase electricity and controlled by the controller.

[0054] Step 2: During the operation of the geared motor 7, the linkage component 4 is driven to rotate at high speed. During the high-speed rotation of the linkage component 4, multiple stirring blades 5 are driven to rotate simultaneously to stir the tricrete phosphite raw material. During the stirring process, the tricrete phosphite raw material circulates around the cylindrical mesh 6 to prevent the tricrete phosphite raw material from stratifying and settling.

[0055] Step 3: During the high-speed rotation of the high-strength stirring rod 41, the air inside it is discharged through the negative pressure hole 42, making the inside of the high-strength stirring rod 41 a negative pressure state, which in turn causes the piston plate 441 to move upward as a whole. The coolant is coated onto the inner wall of the high-strength stirring rod 41 through the coating layer 442. During the operation of the high-strength stirring rod 41, the resulting temperature rise causes the coolant coated onto the inner wall of the high-strength stirring rod 41 to evaporate. The evaporation of the coolant increases the pressure inside the high-strength stirring rod 41 at the lower end of the piston plate 441. Combined with the negative pressure at the upper end of the piston plate 441, this causes the piston plate 441 to move upward.

[0056] Step 4: When the piston plate 441 moves to the limit rod 432 and contacts the horizontal plate 445, it pushes the movable column 444 downward and moves the circular plate 449 to the lower end of the elastic plate 4411.

[0057] Step 5: At this time, the through hole 446 moves to the lower end of the piston plate 441, releasing the pressure inside the piston plate 441. Under the action of gravity, the piston plate 441 moves downward and comes into contact with the coolant at the upper end of the buoyancy plate 451, pushing the circular plate 449 to the upper end of the elastic plate 4411. This cycle is used to cool the high-strength stirring rod 41.

[0058] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0059] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes that element.

[0060] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A sedimentation-preventing stirring device based on tricresyl phosphite raw material, comprising a frame (1), a stirring drum (2), and a geared motor (7), characterized in that: The upper end of the frame (1) is fixedly connected to a geared motor (7) by flange and bolts. The main shaft of the geared motor (7) passes through the upper end of the frame (1) and is fixedly connected to the linkage assembly (4). The linkage assembly (4) has a bottom bearing (3) installed on the outer side of its lower end. The bottom bearing (3) is installed in the middle of the bottom end of the mixing drum (2). The middle of the mixing drum (2) is fixedly connected to a columnar mesh (6) by a connecting plate (8). Multiple sets of ring-shaped stirring blades (5) are installed on the outer side of the linkage assembly (4). The linkage component (4) includes a hollow high-strength stirring rod (41), a negative pressure hole (42) is provided at the upper end of the high-strength stirring rod (41), a limit mechanism (43) is fixedly connected to the inner side of the upper end of the high-strength stirring rod (41), an anti-sway component (45) is installed at the lower end of the high-strength stirring rod (41), and a coating mechanism (44) is provided at the upper end of the anti-sway component (45). The high-strength stirring rod (41) has a coolant placed at its bottom end, and the cross-section of the high-strength stirring rod (41) is T-shaped.

2. The anti-precipitation stirring device based on tricresyl phosphite raw material according to claim 1, characterized in that: The inner edge of the negative pressure hole (42) is arc-shaped, and the top and bottom of the high-strength stirring rod (41) are sealed.

3. The anti-precipitation stirring device based on tricresyl phosphite raw material according to claim 1, characterized in that: The limiting mechanism (43) includes a limiting plate (431), a limiting rod (432) is fixedly connected in the middle of the limiting plate (431), the included angle between the limiting plate (431) and the limiting rod (432) is 90°, the two ends of the limiting plate (431) are welded and fixed to the inner wall of the high-strength stirring rod (41), and the bottom end of the limiting rod (432) is hemispherical.

4. The anti-precipitation stirring device based on tricresyl phosphite raw material according to claim 1, characterized in that: The coating mechanism (44) includes a piston plate (441), a movable column (444) is slidably connected to the piston plate (441) through a sealing ring (447), six through holes (446) are opened in a ring shape in the middle of the movable column (444), a horizontal plate (445) is fixedly connected to the upper end of the movable column (444), a circular plate (449) is fixedly connected to the bottom end of the movable column (444), a telescopic spring (448) is installed on the upper end of the circular plate (449), and elastic plates (4411) are installed on both sides of the lower end of the circular plate (449). One end of the elastic plate (4411) is welded and fixed to the vertical rod (4410), a support ring plate (443) is fixedly connected to the lower end of the movable column (444), and a coating layer (442) of sponge material is fixedly connected to the outside of the support ring plate (443).

5. The anti-precipitation stirring device based on tricresyl phosphite raw material according to claim 4, characterized in that: The upper end of the movable column (444) is hollow, and the through hole (446) is connected to the hollow position of the movable column (444). The center points of the movable column (444), the limiting rod (432), and the horizontal plate (445) are set on the same vertical line.

6. The anti-precipitation stirring device based on tricresyl phosphite raw material according to claim 4, characterized in that: Two sealing rings (447) are provided, and the through hole (446) is provided between the sealing rings (447). The telescopic spring (448) is provided on the outside of the movable column (444), and the upper and lower ends of the telescopic spring (448) are fixedly connected to the piston plate (441) and the circular plate (449) respectively.

7. The anti-precipitation stirring device based on tricresyl phosphite raw material according to claim 4, characterized in that: The upper and lower edges of the circular plate (449) are both arc-shaped. There are two vertical rods (4410) and two elastic plates (4411). The two vertical rods (4410) are parallel to each other, and the upper end of the vertical rod (4410) is fixedly connected to the piston plate (441). The included angle between the vertical rod (4410) and the elastic plate (4411) is 90°. The upper and lower sides of the end of the elastic plate (4411) away from the vertical rod (4410) are both arc-shaped.

8. The anti-precipitation stirring device based on tricresyl phosphite raw material according to claim 1, characterized in that: The anti-sway component (45) includes a buoyancy plate (451), and the buoyancy plate (451) has multiple round holes (452) inside.

9. The anti-precipitation stirring device based on tricresyl phosphite raw material according to claim 8, characterized in that: The buoyancy plate (451) is adapted to the high-strength stirring rod (41), and the vertical cross-section of the buoyancy plate (451) is U-shaped in the transverse projection.

10. A method of using the anti-precipitation stirring device based on tricresyl phosphite raw material according to any one of claims 1-9, characterized in that: Includes the following steps: Step 1: Place coolant inside the bottom of the high-strength stirring rod (41). After placement, place the tricrete phosphite raw material to be stirred into the stirring drum (2). After the tricrete phosphite raw material is placed, the geared motor (7) is powered by external industrial three-phase electricity and controlled by the controller. Step 2: During the operation of the geared motor (7), the linkage component (4) is driven to rotate at high speed. During the high-speed rotation of the linkage component (4), multiple stirring blades (5) are driven to rotate simultaneously to stir the tricrete phosphite raw material. During the stirring process, the tricrete phosphite raw material circulates around the cylindrical mesh (6) to prevent the tricrete phosphite raw material from stratifying and settling. Step 3: During the high-speed rotation of the high-strength stirring rod (41), the air inside it is discharged through the negative pressure hole (42), so that the inside of the high-strength stirring rod (41) is in a negative pressure state, which causes the piston plate (441) to move upward as a whole. The coolant is coated onto the inner wall of the high-strength stirring rod (41) through the coating layer (442). During the operation of the high-strength stirring rod (41), the resulting temperature rise causes the coolant coated onto the inner wall of the high-strength stirring rod (41) to evaporate. The evaporation of the coolant increases the pressure inside the high-strength stirring rod (41) at the lower end of the piston plate (441). Combined with the negative pressure at the upper end of the piston plate (441), the piston plate (441) moves upward. Step 4: When the piston plate (441) moves to the limit rod (432) and contacts the horizontal plate (445), push the movable column (444) downward and move the circular plate (449) to the lower end of the elastic plate (4411); Step 5: At this time, the through hole (446) moves to the lower end of the piston plate (441), releasing the pressure inside the piston plate (441). Under the action of gravity, the piston plate (441) moves downward and comes into contact with the coolant at the upper end of the buoyancy plate (451), pushing the circular plate (449) to the upper end of the elastic plate (4411). This cycle is used to cool the high-strength stirring rod (41).

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