Stirring device with dispersion force
The dispersing mixer addresses uneven mixing in polyurethane production by using alternating blades to create a vortex, ensuring thorough dispersion and dissolution of powdered additives, thereby improving product quality and reducing resource consumption.
Patent Information
- Application Number
- CN202422346399.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-09-26
AI Technical Summary
In the prior art, the powder substance is prone to deposit the bottom of the kettle during the stirring process of the polyurethane material reactor, resulting in uneven stirring, affecting performance and increasing the difficulty of cleaning.
A dispersed stirring device is designed, including a liquid feed port, a powder feed port, a stirring mechanism and a temperature sensor. By combining the horizontal and vertical stirring leaves on the agitating shaft, a vortex fluid environment is formed, so that the powder substance collides and rubs with the liquid under the action of centrifugal force to achieve dispersion and dissolution.
It effectively solves the problem of powder material deposition bottom of the kettle, realizes uniform dispersion and dissolution of the powder in the liquid, and avoids production difficulties and resource waste.
Smart Images
Figure CN223096793U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a stirring device with a dispersing force. Background Art
[0002] With the progress and development of technology, polyurethane materials are widely used, and their products cover many synthetic material fields such as foamed plastics, synthetic rubbers, plastics, synthetic fibers, coatings, adhesives, etc. They are applied to various industries such as cold chain, transportation, construction, household, clothing and footwear, mechanical parts, food, packaging and printing, sports equipment, national defense and military, etc. in the form of products such as rigid foam thermal insulation materials, flexible foam cushion materials, elastomer parts, microcellular elastomer shoe materials, high-elastic fibers, fabric and leather coatings, paint coatings, adhesives, sealants and potting compounds, waterproof and protective coatings, wood-like materials, treatment agents, etc.
[0003] The industrial chain of polyurethane materials is relatively long. The upstream raw materials are isocyanates and polyols. Most of the isocyanates are modified black materials, and additives are added during the modification process to improve performance. Most of the selected additives are liquid additives. In the prior art, during the stirring process of the reaction kettle, it is necessary to mix evenly. However, if powder substances are added for stirring, the stirring will be uneven and the powder substances will sink to the bottom of the kettle, which not only affects the performance of the modified black material itself, but also increases the difficulty for production personnel during the cleaning process of the reaction kettle, greatly increasing resource consumption.
[0004] Therefore, there is an urgent need to propose a stirring device with a dispersing force. Summary of the Utility Model
[0005] In order to solve the defects existing in the prior art, the utility model provides a stirring device with a dispersing force.
[0006] In order to solve the above technical problems, the utility model provides the following technical solutions:
[0007] The utility model provides a stirring device with a dispersion force, which comprises a reaction kettle, a liquid material inlet, a powder material inlet, a nitrogen device, a stirring mechanism, a temperature sensor, an outlet and a vacuum pump. The liquid material inlet, the powder material inlet, the nitrogen device and the vacuum pump are arranged on the top of the reaction kettle and communicated with the reaction kettle. The temperature sensor is arranged on the inner wall of the reaction kettle. The outlet is arranged at the bottom of the reaction kettle and communicated with the reaction kettle. The stirring mechanism comprises a motor, a stirring shaft and at least one stirring blade assembly arranged at intervals along the length direction of the stirring shaft. The output end of the motor is in transmission connection with the stirring shaft. The stirring shaft is rotatably arranged on the reaction kettle. Each stirring blade assembly comprises two horizontally arranged stirring blade groups arranged oppositely and two vertically arranged stirring blade groups arranged oppositely. Each horizontally arranged stirring blade group comprises a horizontally arranged stirring blade holder and two horizontally arranged stirring blades. The horizontally arranged stirring blade holder is arranged on the stirring shaft. A horizontal included angle is formed between the two horizontally arranged stirring blades, and the inner sides of the two are arranged on the horizontally arranged stirring blade holder. Each vertically arranged stirring blade group comprises a vertically arranged stirring blade holder and two vertically arranged stirring blades. The vertically arranged stirring blade holder is arranged on the stirring shaft. A vertical included angle is formed between the two vertically arranged stirring blades, and the inner sides of the two are arranged on the vertically arranged stirring blade holder.
[0008] Preferably, the horizontal included angle and the vertical included angle are 23-45°.
[0009] Preferably, the outer side lengths of the horizontally arranged stirring blades and the vertically arranged stirring blades are greater than the inner side lengths.
[0010] Preferably, the two horizontally arranged stirring blades in each horizontally arranged stirring blade group comprise an upper horizontally arranged stirring blade and a lower horizontally arranged stirring blade. The outer side of the upper horizontally arranged stirring blade forms an upper outer side horizontal included angle with the horizontal. The outer side of the lower horizontally arranged stirring blade forms a lower outer side horizontal included angle with the horizontal. The upper outer side horizontal included angle is greater than the lower outer side horizontal included angle. The inner sides of the upper horizontally arranged stirring blade and the lower horizontally arranged stirring blade in each horizontally arranged stirring blade group form an inner side horizontal included angle with the horizontal.
[0011] Preferably, the upper outer side horizontal included angle is 15-35°, the lower outer side horizontal included angle is 8-18°, and the inner side horizontal included angle is 10-12°.
[0012] Preferably, the two vertically arranged stirring blades in each vertically arranged stirring blade group comprise a first vertically arranged stirring blade and a second vertically arranged stirring blade. The first vertically arranged stirring blade and the second vertically arranged stirring blade are arranged counterclockwise along the circumferential direction of the stirring shaft. The outer side of the first vertically arranged stirring blade forms a first outer side vertical included angle with the vertical. The outer side of the second vertically arranged stirring blade forms a second outer side vertical included angle with the vertical. The first outer side vertical included angle is greater than the second outer side vertical included angle.
[0013] Preferably, the vertical angle of the first outer side is 15-20°, and the vertical angle of the second outer side is 8-10°.
[0014] Preferably, a filter is also connected to the discharge port.
[0015] Preferably, an interlock switch is also provided between the liquid material inlet and the powder material inlet.
[0016] Compared with the prior art, the present utility model has the following beneficial effects:
[0017] In the present utility model, liquid is first put into the liquid material inlet, and then powdery substances are put into the powder material inlet. The motor is started to drive the stirring shaft to rotate and stir. Under the action of the stirring blades, the liquid is quickly thrown to the outside, forming a vortex-shaped fluid environment, so that the powder substances are concentrated in the middle position of the reaction kettle. The powder substances are forced to form a vortex and collide and rub with the liquid under the action of centrifugal force, thereby realizing the dispersion and dissolution of the powder substances in the liquid, preferably solving the problems of powder deposition at the bottom of the kettle and incomplete dissolution, and avoiding production problems. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 is a schematic diagram of the overall structure of a stirring device with dispersion force of the present utility model;
[0019] Figure 2 is in the present utility model Figure 1 is an enlarged schematic view of part A in. DETAILED DESCRIPTION OF THE INVENTION
[0020] The following is a description of the preferred embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present utility model, and are not used to limit the present utility model.
[0021] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings of the specification Figure 1 The orientation or positional relationship shown, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.
[0022] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0023] As shown Figures 1 to 2 in the figure, this embodiment provides a stirring device with a dispersive force, which includes a reaction kettle 1, a liquid material inlet 2, a powder material inlet 3, a nitrogen device 4, a stirring mechanism, a temperature sensor 6, an outlet 7 and a vacuum pump 8. The liquid material inlet 2, the powder material inlet 3, the nitrogen device 4 and the vacuum pump 8 are arranged on the top of the reaction kettle 1 and communicate with the reaction kettle 1. The temperature sensor 6 is arranged on the inner wall of the reaction kettle 1. The outlet 7 is arranged at the bottom of the reaction kettle 1 and communicates with the reaction kettle 1.
[0024] In this embodiment, the stirring mechanism includes a motor 5, a stirring shaft, and two stirring blade assemblies arranged at intervals along the length direction of the stirring shaft. The output end of the motor is in transmission connection with the stirring shaft. The stirring shaft is rotatably arranged on the reaction kettle, and the stirring speed is controlled at 50±5HZ. Each stirring blade assembly includes two horizontally arranged stirring blade groups arranged oppositely and two vertically arranged stirring blade groups arranged oppositely. Each horizontally arranged stirring blade group includes a horizontally arranged stirring blade holder and two horizontally arranged stirring blades. The horizontally arranged stirring blade holder is arranged on the stirring shaft. A horizontal included angle is formed between the two horizontally arranged stirring blades, and the inner sides of the two are arranged on the horizontally arranged stirring blade holder. According to the actual situation, the horizontal included angle can be selected as 23°, 32° or 45°. Each vertically arranged stirring blade group includes a vertically arranged stirring blade holder 9 and two vertically arranged stirring blades 10. The vertically arranged stirring blade holder 9 is arranged on the stirring shaft. A vertical included angle is formed between the two vertically arranged stirring blades 10, and the inner sides of the two are arranged on the vertically arranged stirring blade holder 9. The vertical included angle is 23°, 32° or 45°.
[0025] Specifically, the outer side length of the horizontally arranged stirring blade and the vertically arranged stirring blade 10 is greater than the inner side length, which is more conducive to the formation of vortices and thus conducive to the dispersion of powders.
[0026] As shown Figure 2 in the figure, the two horizontally arranged stirring blades in each horizontally arranged stirring blade group include an upper horizontally arranged stirring blade and a lower horizontally arranged stirring blade. The outer side i of the upper horizontally arranged stirring blade forms an upper outer side horizontal included angle with the horizontal. According to the actual situation, the upper outer side horizontal included angle can be selected as 15°, 22° or 35°. The outer side j of the lower horizontally arranged stirring blade forms a lower outer side horizontal included angle with the horizontal. According to the actual situation, the lower outer side horizontal included angle is 8°, 13° or 18°, and it is ensured that the upper outer side horizontal included angle is greater than the lower outer side horizontal included angle. The inner side h of the upper horizontally arranged stirring blade and the lower horizontally arranged stirring blade in each horizontally arranged stirring blade group forms an inner side horizontal included angle with the horizontal. According to the actual situation, the inner side horizontal included angle is 10°, 11° or 12°.
[0027] As shown Figure 2As shown, each vertical stirring blade group includes two vertical stirring blades, namely the first vertical stirring blade and the second vertical stirring blade. The first vertical stirring blade and the second vertical stirring blade are arranged counterclockwise along the circumferential direction of the stirring shaft. The outer side of the first vertical stirring blade forms a first outer side vertical angle with the vertical direction, and the outer side of the second vertical stirring blade forms a second outer side vertical angle with the vertical direction. The first outer side vertical angle is greater than the second outer side vertical angle. Among them, the angle of the first outer side vertical angle formed by the outer side of the first vertical stirring blade in the left and right vertical stirring blade groups with the vertical direction, and the angle of the second outer side vertical angle formed by the outer side of the second vertical stirring blade in the left and right vertical stirring blade groups with the vertical direction can be the same or different. In this embodiment, the angle of the first outer side vertical angle formed by the outer side e of the first vertical stirring blade in the left vertical stirring blade group with the vertical direction is 20°, the angle of the second outer side vertical angle formed by the outer side g of the second vertical stirring blade in the left vertical stirring blade group with the vertical direction is 10°, the angle of the first outer side vertical angle formed by the outer side c of the first vertical stirring blade in the right vertical stirring blade group with the vertical direction is 15°, and the angle of the second outer side vertical angle formed by the outer side b of the second vertical stirring blade in the left vertical stirring blade group with the vertical direction is 8°. Among them, the inner side d of the first vertical stirring blade in the left vertical stirring blade group and the inner side a of the second vertical stirring blade in the right vertical stirring blade group are parallel to the vertical direction.
[0028] Specifically, a filter 11 is also connected to the discharge port 7 to filter the output material. An interlock switch is also provided between the liquid feed port 2 and the powder feed port 3 to ensure that the liquid and powder substances are put in sequence.
[0029] The working principle of this embodiment is further described below: First, put the liquid into the liquid feed port, then put the powdery substance into the powder feed port, start the motor to drive the stirring shaft to rotate and stir. The liquid is quickly thrown to the outside under the action of the stirring blades, forming a vortex-shaped fluid environment, so that the powder substance is concentrated in the middle position of the reaction kettle. The powder substance is forced to form a vortex and collides and rubs with the liquid under the action of centrifugal force, thereby realizing the dispersion and dissolution of the powder substance in the liquid, preferably solving the problems of powder deposition at the bottom of the kettle and incomplete dissolution, and avoiding production problems.
[0030] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A stirring device with dispersive force, characterized in that, It includes a reaction kettle (1), a liquid material inlet (2), a powder material inlet (3), a nitrogen device (4), a stirring mechanism, a temperature sensor (6), an outlet (7) and a vacuum pump (8). The liquid material inlet (2), the powder material inlet (3), the nitrogen device (4) and the vacuum pump (8) are arranged on the top of the reaction kettle (1) and communicate with the reaction kettle (1). The temperature sensor (6) is arranged on the inner wall of the reaction kettle (1). The outlet (7) is arranged at the bottom of the reaction kettle (1) and communicates with the reaction kettle (1). The stirring mechanism includes a motor (5), a stirring shaft, and at least one stirring blade assembly arranged at intervals along the length direction of the stirring shaft. The output end of the motor (5) is in transmission connection with the stirring shaft. The stirring shaft is rotatably arranged on the reaction kettle (1). Each stirring blade assembly includes two horizontally arranged stirring blade groups arranged oppositely and two vertically arranged stirring blade groups arranged oppositely. Each horizontally arranged stirring blade group includes a horizontal stirring blade holder and two horizontal stirring blades. The horizontal stirring blade holder is arranged on the stirring shaft. A horizontal included angle is formed between the two horizontal stirring blades, and the inner sides of the two are arranged on the horizontal stirring blade holder. Each vertically arranged stirring blade group includes a vertical stirring blade holder (9) and two vertical stirring blades (10). The vertical stirring blade holder (9) is arranged on the stirring shaft. A vertical included angle is formed between the two vertical stirring blades (10), and the inner sides of the two are arranged on the vertical stirring blade holder (9).
2. The stirring device with a dispersing force according to claim 1, wherein, The horizontal included angle and the vertical included angle are 23 - 45°.
3. The stirring device with a dispersing force according to claim 1, wherein, The length of the outer side of the horizontal stirring blade and the vertical stirring blade (10) is greater than the length of the inner side.
4. A stirring device with a dispersing force according to claim 1, characterized in that, In each horizontally arranged stirring blade group, the two horizontal stirring blades include an upper horizontal stirring blade and a lower horizontal stirring blade. The outer side of the upper horizontal stirring blade forms an upper outer side horizontal included angle with the horizontal. The outer side of the lower horizontal stirring blade forms a lower outer side horizontal included angle with the horizontal. The upper outer side horizontal included angle is greater than the lower outer side horizontal included angle. In each horizontally arranged stirring blade group, the inner sides of the upper horizontal stirring blade and the lower horizontal stirring blade form an inner side horizontal included angle with the horizontal.
5. The stirring device with a dispersing force according to claim 4, characterized in that, The upper outer side horizontal included angle is 15 - 35°, the lower outer side horizontal included angle is 8 - 18°, and the inner side horizontal included angle is 10 - 12°.
6. The stirring device with a dispersing force according to claim 1, characterized in that, In each vertically arranged stirring blade group, the two vertical stirring blades include a first vertical stirring blade and a second vertical stirring blade. The first vertical stirring blade and the second vertical stirring blade are arranged counterclockwise along the circumferential direction of the stirring shaft. The outer side of the first vertical stirring blade forms a first outer side vertical included angle with the vertical. The outer side of the second vertical stirring blade forms a second outer side vertical included angle with the vertical. The first outer side vertical included angle is greater than the second outer side vertical included angle.
7. The stirring device with a dispersing force according to claim 6, characterized in that, The first outer side vertical included angle is 15 - 20°, and the second outer side vertical included angle is 8 - 10°.
8. A stirring device with a dispersing force according to claim 1, characterized in that, A filter (11) is also connected to the outlet (7).
9. A stirring device with a dispersing force according to claim 1, characterized in that, An interlock switch is also arranged between the liquid material inlet (2) and the powder material inlet (3).