Reaction kettle stirring device for alkali swelling thickening agent

Abstract

The utility model provides a reaction kettle stirring device for an alkali swelling thickener, which comprises a fixed pipe, a stirring mechanism is arranged on the fixed pipe, the stirring mechanism comprises a stirring shaft with a regular hexagonal cross section, the lower part of the stirring shaft is provided with a paddle and angle steel, the upper end of the fixed pipe is fixedly connected with a transmission pipe, and the transmission pipe is fixedly connected with a motor. A second rotating piece is arranged in the transmission pipe, a second belt wheel used for transmission is connected to the side wall of the middle of the second rotating piece in a sleeving mode, a regular hexagonal through hole is formed in the middle of the second rotating piece, the stirring shaft is in transition fit with the through hole, and a polished rod and a lead screw are vertically arranged above the transmission pipe side by side; the polish rod is fixedly arranged, the lead screw is rotatably arranged, a push block is arranged on the polish rod in a penetrating manner, one end of the push block is in threaded connection with the lead screw, and the other end of the push block is buckled at the upper end of the stirring shaft. According to the invention, the stirring effect is improved through cooperation of the lifting paddle and the angle steel.

Description

Technical Field

[0001] This invention relates to the field of stirring technology, and more particularly to a stirring device for a reaction vessel of an alkali-swellable thickener. Background Technology

[0002] Stirring mechanisms are commonly installed in chemical production processes. Stirring can accelerate the reaction rate, allowing reactants to better contact and mix, thereby improving reaction efficiency. Stirring helps eliminate temperature and concentration gradients within the reactor, enhances mixing between materials, and promotes heat exchange, ensuring the reaction proceeds under optimal conditions. Stirring ensures that miscible liquids are mixed uniformly, preventing precipitation and stratification, and ensuring sufficient contact between reactants. Stirring can suspend solids in liquids or disperse gases or liquids in another fluid, contributing to improved reaction uniformity and efficiency.

[0003] There are various types of stirring mechanisms, the most common being a stirring rod or impeller mounted on a stirring shaft. However, this type of stirring structure is not suitable for some situations. For example, in the production of alkali-swellable thickeners, the viscosity of the reaction system continuously increases as the reaction proceeds, making it impossible to meet the aforementioned stirring requirements. Summary of the Invention

[0004] To address the aforementioned problems, this invention discloses a stirring device for a reactor containing an alkali-swellable thickener. The device includes a fixed pipe with a stirring mechanism mounted on it. The stirring mechanism comprises a stirring shaft with a regular hexagonal cross-section. A paddle and an angle steel are mounted at the lower part of the stirring shaft. The angle steel is positioned above the paddle and is angled upwards at an equal angle. During stirring, the paddle rotates and pushes the material upwards, while the material is dispersed by the rotating angle steel as it passes over it, thereby improving the stirring effect.

[0005] A transmission pipe is fixedly connected to the upper end of the fixed pipe. A second rotating component is installed inside the transmission pipe. Bearings are fitted onto both the upper and lower parts of the second rotating component, with the outer ring of the bearing fitting into the inner wall of the transmission pipe. A second pulley for transmission is fitted onto the middle side wall of the second rotating component. A regular hexagonal through hole is provided in the middle of the second rotating component, and the stirring shaft is fitted into the through hole. This arrangement allows the stirring mechanism to rotate via the second pulley, while the second rotating component ensures that the axial movement of the stirring shaft is not affected during rotation.

[0006] Above the transmission tube, a guide rod and a lead screw are vertically arranged side by side. The guide rod is fixed, while the lead screw is rotatable. A push block is inserted through the guide rod, with one end of the push block threaded to the lead screw and the other end rotatably fastened to the upper end of the stirring shaft. The rotation of the lead screw, with the aid of the push block, pushes and pulls the stirring shaft, changing the height of the impeller and angle steel, thereby achieving reciprocating stirring and improving stirring efficiency.

[0007] Preferably, the upper end of the fixed tube extends to a plate, and a stirring motor is fixedly connected to the lower end of the plate. A first pulley is fixedly connected to the output end of the stirring motor, and belts are fitted onto both the first and second pulleys. When the stirring motor is started, the second rotating component is driven to rotate via the first pulley, belts, and second pulley, thereby driving the stirring mechanism to rotate.

[0008] Preferably, a housing is fitted around the outside of the first pulley and the transmission tube. The housing serves a protective function.

[0009] Preferably, the upper end of the transmission tube is fixedly connected to an outer sleeve, and the stirring shaft, the guide rod, and the lead screw are all housed inside the outer sleeve. Similarly, the outer sleeve also serves a protective function, ensuring the safe operation of the device.

[0010] Preferably, a lifting motor is fixedly connected to one side of the lower end of the outer casing, and the output end of the lifting motor is fixedly connected to the lower end of the lead screw. When the lifting motor is started, the lead screw rotates, thereby realizing the lifting and lowering of the stirring mechanism.

[0011] Preferably, the lower end of the fixed tube is internally threaded with a fixed sleeve, and a first rotating component is rotatably mounted inside the fixed sleeve. A limit ring is provided below the first rotating component, and the limit ring and the internal rotation of the first rotating component are in rotatable engagement. A regular hexagonal through hole is provided in the middle of the first rotating component, and the stirring shaft passes through the through hole in a transition fit. The fixed sleeve and other structures, together with the second rotating component and the push block, improve the stability of the stirring mechanism.

[0012] Preferably, sealing rings are provided between the fixed sleeve and the fixed tube, between the fixed sleeve and the first rotating component, and between the first rotating component and the stirring shaft. This prevents material from entering the interior of the fixed tube or even the transmission tube, thus avoiding contamination.

[0013] The beneficial effects of this invention are as follows:

[0014] 1. An angle steel is installed above the blades. As the material is pushed upward by the blades, it is dispersed as it flows through the angle steel, which greatly improves the mixing effect.

[0015] 2. Equipped with a lifting motor, lead screw, and other structures, the stirring mechanism can be raised and lowered during the stirring process. The first rotating part and the second rotating part are also set to ensure the rotation of the stirring mechanism and the sealing during the lifting process. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0017] Figure 2 This is an exploded view of the structure of the stirring motor in this invention;

[0018] Figure 3 This is a schematic diagram of the transmission structure of the lifting motor of the present invention;

[0019] Figure 4 This is a schematic diagram of the stirring mechanism of the present invention.

[0020] List of reference numerals in the attached diagram:

[0021] 1. Stirring mechanism; 2. Stirring motor; 3. Fixed pipe; 4. Outer shell; 5. Lifting motor; 6. Outer sleeve; 7. Limiting ring; 8. First rotating component; 9. Fixed sleeve; 10. Transmission pipe; 11. Bearing; 12. First pulley; 13. Belt; 14. Second pulley; 15. Second rotating component; 16. Polished rod; 17. Lead screw; 18. Push block; 101. Blade; 102. Angle steel; 103. Stirring shaft. Detailed Implementation

[0022] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, and the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0023] like Figures 1 to 4 As shown, a stirring device for a reactor containing an alkali-swellable thickener includes a fixed pipe 3, which is a pipe fitting with flanges at both ends. A stirring mechanism 1 is mounted on the fixed pipe 3 for stirring materials within the reactor. The stirring mechanism 1 includes a stirring shaft 103 with a regular hexagonal cross-section. A paddle 101 and an angle steel 102 are mounted on the lower part of the stirring shaft 103. The angle steel 102 is positioned above the paddle 101 and is angled upwards at the same angle. During rotation, the paddle 101 pushes the material upwards, and the material is dispersed by the angle steel 102. Therefore, the paddle 101, in conjunction with the angle steel 102, improves the stirring effect of the material.

[0024] A transmission pipe 10 is fixedly connected to the upper end of the fixed pipe 3. The structure of the transmission pipe 10 is the same as that of the fixed pipe 3, both of which have flanges at both ends. The dimensions are different. A second rotating component 15 is set inside the transmission pipe 10. Bearings 11 are sleeved on the upper and lower parts of the second rotating component 15. The outer ring of the bearing 11 fits on the inner wall of the transmission pipe 10, that is, the second rotating component 15 rotates inside the transmission pipe 10. A second pulley 14 for transmission is sleeved on the middle side wall of the second rotating component 15. The external drive is driven by the second pulley 14 to drive the second rotating component 15 to rotate. A regular hexagonal through hole is set in the middle of the second rotating component 15, and the stirring shaft 103 is transitionally fitted with the through hole. The regular hexagonal shape ensures that the stirring shaft 103 rotates with the second rotating component 15, but the stirring shaft 103 can also move in its own axial direction.

[0025] Above the transmission tube 10, there are vertically arranged a guide rod 16 and a lead screw 17. The guide rod 16 is fixedly installed, while the lead screw 17 is rotatably installed. A push block 18 is inserted through the guide rod 16. One end of the push block 18 is threadedly connected to the lead screw 17, and the other end of the push block 18 is rotatably fastened to the upper end of the stirring shaft 103. Specifically, a cylindrical section is provided at the upper end of the stirring shaft 103. This cylindrical section is inserted and rotatably fitted onto the push block 18, thus not affecting the rotation of the stirring shaft 103. If necessary, an angular contact thrust bearing or an end face bearing can be installed between the push block 18 and the stirring shaft 103. When the lead screw 17 rotates, the push block 18 moves axially and pushes and pulls the stirring shaft 103, thereby realizing the movement of the stirring mechanism 1.

[0026] A plate extends from the upper end of the fixed pipe 3, and a stirring motor 2 is fixedly connected to the lower end of the plate. A first pulley 12 is fixedly connected to the output end of the stirring motor 2. Belts 13 are fitted onto both the first pulley 12 and the second pulley 14. Furthermore, a window is provided on the side wall of the transmission pipe 10 to allow the belts 13 to be simultaneously fitted onto the first pulley 12 and the second pulley 14. When the stirring motor 2 is started, the stirring shaft 103 is driven to rotate via the transmission of the first pulley 12, the belts 13, and the second pulley 14, thereby aided by the second rotating component 15.

[0027] A housing 4 is fitted around the outer side of the first pulley 12 and the transmission tube 10. The housing 4 serves a protective function.

[0028] The upper end of the transmission tube 10 is fixedly connected to an outer sleeve 6, which houses the stirring shaft 103, the polished rod 16, and the lead screw 17. The outer sleeve 6 also serves a protective function, ensuring the safe use of the device.

[0029] A lifting motor 5 is fixedly connected to one side of the lower end of the outer casing 6. The output end of the lifting motor 5 is fixedly connected to the lower end of the lead screw 17. When the lifting motor 5 is started, the lead screw 17 rotates, driving the lifting of the stirring mechanism 1.

[0030] The lower end of the fixed tube 3 is internally threaded with a fixed sleeve 9. The side wall of the fixed sleeve 9 is threaded, and the lower end of the fixed sleeve 9 is provided with a regular hexagonal notch to facilitate the rotation of the fixed sleeve 9. The fixed sleeve 9 is internally rotatably provided with a first rotating member 8. A limit retaining ring 7 is provided below the first rotating member 8. The limit retaining ring 7 and the first rotating member 8 are internally rotatably engaged. The limit retaining ring 7 is internally provided with several openings at equal angles to facilitate the rotation of the limit retaining ring 7. The middle part of the first rotating member 8 is provided with a regular hexagonal through hole, and the stirring shaft 103 is transitionally engaged through the through hole.

[0031] Sealing rings are provided between the fixed sleeve 9 and the fixed tube 3, between the fixed sleeve 9 and the first rotating component 8, and between the first rotating component 8 and the stirring shaft 103. The setting of the limiting ring 7, the first rotating component 8, the fixed sleeve 9, and the sealing rings not only provides a support point for the stirring shaft 103, but also ensures the sealing between the fixed tube 3 and the reactor, preventing materials from entering the interior of the fixed tube 3.

[0032] The technical means disclosed in this invention are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features.

Claims

1. A stirring device for a reaction vessel of an alkali-swellable thickener, characterized in that, Includes a fixed pipe (3), on which a stirring mechanism (1) is provided. The stirring mechanism (1) includes a stirring shaft (103) with a regular hexagonal cross section. The lower part of the stirring shaft (103) is provided with a blade (101) and an angle steel (102). The angle steel (102) is located above the blade (101) and is set at an angle and obliquely upward. The upper end of the fixed tube (3) is fixedly connected to the transmission tube (10). The transmission tube (10) is provided with a second rotating component (15). The upper and lower parts of the second rotating component (15) are both sleeved with bearings (11). The outer ring of the bearing (11) is fitted to the inner wall of the transmission tube (10). The middle side wall of the second rotating component (15) is sleeved with a second pulley (14) for transmission. The middle part of the second rotating component (15) is provided with a regular hexagonal through hole, and the stirring shaft (103) and the through hole are transitionally fitted. Above the transmission tube (10), there are vertically arranged a light rod (16) and a lead screw (17). The light rod (16) is fixedly set, and the lead screw (17) is rotatably set. A push block (18) is inserted through the light rod (16). One end of the push block (18) is threadedly connected to the lead screw (17), and the other end of the push block (18) is rotatably fastened to the upper end of the stirring shaft (103).

2. The stirring device for a reaction vessel of an alkali-swellable thickener according to claim 1, characterized in that: The upper end of the fixed tube (3) extends with a plate, and the lower end of the plate is fixedly connected to a stirring motor (2). The output end of the stirring motor (2) is fixedly connected to a first pulley (12), and belts (13) are sleeved on both the first pulley (12) and the second pulley (14).

3. The stirring device for a reaction vessel of an alkali-swellable thickener according to claim 2, characterized in that: The outer side of the first pulley (12) and the transmission tube (10) is fitted with a housing (4).

4. The stirring device for a reaction vessel of an alkali-swellable thickener according to claim 1, characterized in that: The upper end of the transmission tube (10) is fixedly connected to the outer sleeve (6), and the stirring shaft (103), the light rod (16) and the lead screw (17) are all housed inside the outer sleeve (6).

5. The stirring device for a reaction vessel of an alkali-swellable thickener according to claim 4, characterized in that: A lifting motor (5) is fixedly connected to one side of the lower end of the outer jacket (6), and the output end of the lifting motor (5) is fixedly connected to the lower end of the lead screw (17).

6. The stirring device for a reaction vessel of an alkali-swellable thickener according to claim 1, characterized in that: The lower end of the fixed tube (3) is internally threaded with a fixed sleeve (9). The fixed sleeve (9) is internally rotatably provided with a first rotating member (8). A limit ring (7) is provided below the first rotating member (8). The limit ring (7) and the first rotating member (8) are internally rotatably engaged. The middle part of the first rotating member (8) is provided with a regular hexagonal through hole, and the stirring shaft (103) is transitionally engaged through the through hole.

7. The stirring device for a reaction vessel of an alkali-swellable thickener according to claim 6, characterized in that: A sealing ring is provided between the fixed sleeve (9) and the fixed tube (3), between the fixed sleeve (9) and the first rotating component (8), and between the first rotating component (8) and the stirring shaft (103).

Images