Stirring structure of reaction kettle
By designing the stirring structure of the inclined connecting rod and sliding shear rod in the reactor, the problem of poor stirring effect of gel and powder mixtures with insufficient fluidity in the prior art is solved, and a more uniform material mixing is achieved and dispersive effect.
Patent Information
- Application Number
- CN202420335943.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-23
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-02-23
AI Technical Summary
The existing stirring and dispersion device has poor agitation effect on gels and powder mixtures that are not fluid enough, making it difficult to evenly disperse the powder into the fluid.
A reactor stirring structure is designed, including an inclined connecting rod and a sliding shear rod on the rotating shaft, and a stirring blade and a rotating blade are provided on the shear rod. Through the movement of the shear rod and the spiral movement of the rotating blade, the Multi-directional force applied and mixed to the material.
It realizes uniform stirring and dispersion of materials with poor fluidity, and improves product uniformity and fluidity, especially the uniform mixing effect of powder.
Smart Images
Figure CN222152010U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of stirring equipment, in particular to a stirring structure of a reaction kettle. Background Art
[0002] In the production process of paint and sealant, resin raw materials, pigments, solvents, additives, etc. are usually placed in a reactor and stirred evenly to form a high-mixed material. The high-mixed material is then transferred to a condensation chamber for cooling treatment, and then extruded and transported to a static mixer by a twin-screw main machine for standing, and a curing agent and color paste are added, and then the dispensing machine continuously dispenses the materials into products. In the above process, the stirring and dispersing link is the first step in the production and preparation process, and its dispersion effect directly affects the quality of the finished sealing material.
[0003] The purpose of stirring and mixing is to use mechanical force to evenly disperse the solid matter in the carrier to form a stable dispersion system, so as to reduce agglomeration, phase separation and precipitation, and at the same time make the paint or sealant have good flow and rheology, making it smoother and more uniform during use.
[0004] The current stirring and dispersing device is usually a stirrer structure driven by a motor, in which the stirrer is located inside the reactor, so as to stir and disperse the materials injected into the reactor at high speed to form a uniform mixture. However, the common stirrer is usually a fixed stirring rod / stirring paddle structure, which has a poor stirring effect on gel and powder mixtures with insufficient fluidity. It is difficult to apply force evenly to various parts of the material, so that some powders are relatively concentrated and cannot be evenly dispersed into the fluid. Therefore, a better stirring structure is needed. Utility Model Content
[0005] In view of the deficiencies existing in the prior art, the utility model provides a stirring structure for a reaction kettle, which solves the problem in the prior art that the stirring effect for gel and powder mixtures with insufficient fluidity is not good enough.
[0006] According to an embodiment of the utility model, a reactor stirring structure includes a reactor body, wherein the reactor body is a closed hollow cylindrical structure, a rotating shaft is coaxially arranged inside the reactor body, the top end of the rotating shaft extends out of the reactor body and is connected to a motor, and a plurality of groups of symmetrical stirring blades are arranged on the rotating shaft along the vertical direction, the stirring blades include a connecting rod and a shear rod movably arranged on the connecting rod, one end of the connecting rod is fixedly connected to the rotating shaft, and the other end is inclined upward, the shear rod is slidably connected to the connecting rod, so that the shear rod can only move in the direction of the connecting rod, and the shear rod is coplanar with the connecting rod and the rotating shaft.
[0007] Furthermore, the connecting rod is a square rod, the shear rod is vertically arranged, and a square hole matching the shape of the connecting rod is arranged in the middle of the shear rod, so that the shear rod is slidably sleeved on the outside of the connecting rod.
[0008] Furthermore, a plurality of protruding blocking blocks are arranged at equal intervals on the connecting rod, wherein a blocking block is provided at the outer end of the connecting rod, and a shear rod is provided between adjacent blocking blocks.
[0009] Furthermore, stirring blades are symmetrically arranged on both sides of the shear rod, and the length of the stirring blades matches the shear rod.
[0010] Furthermore, one side edge of the stirring blade is rotatably connected to the side surface of the shear rod, and the rotation angle of the stirring blade is -30° to 30°.
[0011] Furthermore, rotating blades are symmetrically arranged at the upper and lower ends of the shear rod, and the rotating blades are propeller blades. A rotating shaft is arranged in the middle of the rotating blades, and the rotating shaft is coaxial with the shear rod and rotatably mounted on the end of the shear rod.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] The stirring blade in the utility model includes a connecting rod and a shearing rod, wherein the shearing rod is movably mounted on the connecting rod and can slide freely along the connecting rod, and the connecting rod is tilted upward with its outer end facing upward. Therefore, the shearing rod slides to the lowest point of the connecting rod due to gravity when static, and when the rotating shaft rotates, the shearing rod moves outward due to centrifugal force during the rotation process, and thus slides outward along the connecting rod to move to different positions. According to the fluidity of the material and the speed adjustment of the rotating shaft, the shearing rod can be reciprocated on the connecting rod to stir at various positions. For materials with poor fluidity, force can be applied from different positions to stir and shear, so that the materials are mixed more evenly, especially the powder is mixed more evenly into the fluid, and finally a product with stronger uniformity is obtained. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.
[0015] Figure 2 It is a schematic diagram of the specific structure of the connecting rod and the shear rod in the embodiment of the utility model.
[0016] Figure 3 It is a side view schematic diagram of the connecting rod and the shear rod in the embodiment of the utility model.
[0017] In the above drawings: 1, reactor body; 2, rotating shaft; 3, motor; 4, connecting rod; 5, shear rod; 41, blocking block; 51, stirring blade; 52, rotating blade. DETAILED DESCRIPTION
[0018] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0019] like Figure 1 As shown, the embodiment of the utility model proposes a reactor stirring structure, including a reactor body 1. The reactor body 1 in this embodiment is a closed hollow cylindrical structure, wherein the bottom of the reactor body 1 is an arc structure, a feed inlet is provided at the top of the reactor body 1, and a discharge port with a valve is provided at the center of the bottom.
[0020] like Figure 2 As shown, in this embodiment, a rotating shaft 2 is coaxially arranged inside the reactor body 1, and the top end of the rotating shaft 2 extends out of the reactor body 1 and is connected to a motor 3, and the rotating shaft 2 is driven by the motor 3 to rotate inside the reactor body 1. Several groups of symmetrical stirring blades are arranged on the rotating shaft 2 in the vertical direction. In this embodiment, there are two groups of stirring blades, each group including two mutually symmetrical stirring blades. The stirring blades include a connecting rod 4 and a shear rod 5 movably arranged on the connecting rod 4, one end of the connecting rod 4 is fixedly connected to the rotating shaft 2, and the other end is inclined upward and extends to a position close to the inner wall of the reactor body 1. The shear rod 5 is slidably connected to the connecting rod 4, so that the shear rod 5 can only move in the direction of the connecting rod 4. The shear rod 5 is coplanar with the connecting rod 4 and the rotating shaft 2, so that the connecting rod 4 and the shear rod 5 are always perpendicular to the rotation direction when rotating, so as to obtain the best stirring effect.
[0021] Further in this embodiment, the connecting rod 4 is a square rod, the shear rod 5 is vertically arranged, and a square hole matching the shape of the connecting rod 4 is arranged in the middle of the shear rod 5, so that the shear rod 5 is slidably sleeved outside the connecting rod 4. The shear rod 5 is deliberately limited by the cooperation of the square hole and the square rod to prevent it from axial rotation or shaking in other directions, and can only slide along the connecting rod 4 while rotating with the rotating shaft 2 and the connecting rod 4.
[0022] Correspondingly, a plurality of protruding blocking blocks 41 are arranged at equal intervals on the connecting rod 4, wherein a blocking block 41 is arranged at the outer end of the connecting rod 4, and a shearing rod 5 is arranged between adjacent blocking blocks 41. In this embodiment, a total of three blocking blocks 41 are arranged on the connecting rod 4, and thus two shearing rods 5 are arranged. When the shearing rod 5 is stationary, it is limited by the blocking block 41 so as not to completely slide down to the bottom end of the connecting rod 4. At the same time, when the shearing rod 5 rotates and moves toward the outside, it is also limited by another blocking block 41, so that it is evenly distributed on the connecting rod 4, has a larger coverage area, and shears the material more evenly.
[0023] Furthermore, stirring blades 51 are symmetrically arranged on both sides of the shear rod 5, and the length of the stirring blades 51 matches the shear rod 5. The stirring area of the shear rod 5 is further enlarged by the stirring blades 51, so that it can not only do shearing work when rotating, but also drive the material to move and mix as a whole. In a further solution, the edge of one side of the stirring blade 51 is rotatably connected to the side of the shear rod 5, and the rotation angle of the stirring blade 51 is -30° to 30°. By rotating, the stirring blade 51 is not completely in surface contact with the material, ensuring that its side end stirs the material in the form of line contact, while driving the material to mix, maintaining its shearing ability.
[0024] like Figure 3 As shown, in this embodiment, the upper and lower ends of the shear rod 5 are symmetrically provided with rotating blades 52, the rotating blades 52 are propeller blades, and the middle of the rotating blades 52 is provided with a rotating shaft 2, the rotating shaft 2 is coaxial with the shear rod 5 and is rotatably mounted on the end of the shear rod 5. The rotating blades 52 rotate with the overall movement of the shear rod 5, thereby driving the local materials in the reactor body 1 to mix and stir in a small range, thereby improving the mixing degree of materials with poor fluidity.
[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.
Claims
1. A reactor stirring structure, comprising a reactor body, characterized in that: The reactor body is a closed hollow cylindrical structure, a rotating shaft is coaxially arranged inside the reactor body, the top end of the rotating shaft extends out of the reactor body and is connected to a motor, a plurality of groups of symmetrical stirring blades are arranged on the rotating shaft in a vertical direction, the stirring blades include a connecting rod and a shear rod movably arranged on the connecting rod, one end of the connecting rod is fixedly connected to the rotating shaft, and the other end is inclined upward, the shear rod is slidably connected to the connecting rod, so that the shear rod can only move in the direction of the connecting rod, and the shear rod is coplanar with the connecting rod and the rotating shaft.
2. A stirring structure for a reactor as claimed in claim 1, characterized in that: The connecting rod is a square rod, the shear rod is vertically arranged, and a square hole matching the shape of the connecting rod is arranged in the middle of the shear rod, so that the shear rod is slidably sleeved outside the connecting rod.
3. A stirring structure for a reactor as claimed in claim 1, characterized in that: A plurality of protruding blocking blocks are arranged at equal intervals on the connecting rod, wherein a blocking block is arranged at the outer end of the connecting rod, and a shear rod is arranged between adjacent blocking blocks.
4. A stirring structure for a reactor as claimed in claim 1, characterized in that: Stirring blades are symmetrically arranged on both sides of the shear rod, and the length of the stirring blades matches the shear rod.
5. A stirring structure for a reaction kettle as claimed in claim 4, characterized in that: One side edge of the stirring blade is rotatably connected to the side surface of the shear rod, and the rotation angle of the stirring blade is -30° to 30°.
6. A stirring structure for a reactor as claimed in claim 1, characterized in that: Rotating blades are symmetrically arranged at the upper and lower ends of the shearing rod. The rotating blades are propeller blades. A rotating shaft is arranged in the middle of the rotating blades. The rotating shaft is coaxial with the shearing rod and is rotatably mounted on the end of the shearing rod.