Dispersion disc for silicone sealant production
By designing the dispersion disc's dispersion plates, flow-guiding arc strips, and flow divider structure, the problem of poor dispersion effect in silicone sealant production was solved, achieving more efficient dispersion and production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LINQU JINDI RUBBER IND CO LTD
- Filing Date
- 2025-05-24
- Publication Date
- 2026-05-05
AI Technical Summary
Poor dispersion in existing silicone sealant production processes leads to low production efficiency.
Design a dispersion disk comprising a circular substrate, a stirring shaft, a dispersion plate, a flow guide arc strip, and a flow divider plate. The flow divider plate and the flow guide arc strip divide and guide the slurry, and the dispersion plate shears the rotating slurry to improve the dispersion effect.
It improves the dispersion effect and production efficiency of silicone sealant, reduces the chance of the slurry forming a central vortex, and shortens the dispersion time.
Smart Images
Figure CN224194483U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of chemical production equipment technology, specifically relating to a dispersion disc for silicone sealant production. Background Technology
[0002] Silicone sealant is produced by mixing polydimethylsiloxane as the main raw material with crosslinking agents, fillers, plasticizers, coupling agents, and catalysts under vacuum to form a paste. It then cures at room temperature by reacting with water in the air to form an elastic silicone rubber. During the production of silicone sealant, the raw materials need to be uniformly stirred due to their varying properties. However, existing dispersers are not very effective at dispersing viscous materials. This is mainly because the dispersion disc is simply designed; the slurry rushes towards the wall under centrifugal force, causing the liquid level in the center to drop, forming a large vortex. The higher the rotation speed, the deeper the vortex, resulting in a reduced effective volume and almost no axial mixing. This leads to decreased stirring effect, poor dispersion, long dispersion time, and low production efficiency. Summary of the Invention
[0003] The technical problem to be solved by this utility model is to provide a dispersion disc for the production of silicone sealant, which can overcome the defect of poor dispersion effect in the existing silicone sealant production and improve production efficiency.
[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:
[0005] A dispersion disc for producing silicone sealant includes a circular substrate with a stirring shaft fixedly connected to the center of the substrate; several upwardly protruding dispersion plates are evenly arranged on the edge of the substrate circumference; six guide arc strips are evenly arranged between the stirring shaft and the edge of the substrate circumference; a pair of flow dividers are also symmetrically arranged between the stirring shaft and the edge of the substrate circumference, and several flow dividers are evenly arranged on the flow dividers.
[0006] Preferably, the dispersion sheet is provided in 6-10 pieces, the length of the dispersion sheet is one-tenth to one-twentieth of the circumference of the matrix, and the width is one-fifth to one-tenth of the length.
[0007] Preferably, the length of the guide arc strip is half the radius of the dispersion disk, and the distances from both ends of the guide arc strip to the outer edge of the stirring shaft and the outer edge of the dispersion disk are the same; the width is one-sixth to one-twelfth of the length; and the curvature of the guide arc strip is the same as the curvature of the circumference of the dispersion disk.
[0008] Preferably, the length of the flow divider plate is two-thirds of the radius of the dispersion disk, and the distances from both ends of the flow divider plate to the outer edge of the stirring shaft and the outer edge of the dispersion disk are the same; the width is one-eighth to one-fifteenth of the length.
[0009] Preferably, the diversion holes are circular holes and are evenly distributed on the diversion plate.
[0010] Preferably, the flow divider and the dispersion plate have the same height, with the height of the flow divider being one-eighth to one-tenth of its length; the height of the flow guide arc strip is two-thirds of the height of the flow divider.
[0011] Due to the adoption of the above technical solution, the beneficial effects of this utility model are:
[0012] This invention utilizes a flow divider and a guide arc strip to divide and guide the slurry on the dispersion disk substrate, and also has a certain cutting and dispersing effect on the slurry, reducing the chance of the slurry forming a central vortex during movement; at the same time, the dispersion plate is used to shear the turbulence formed by the rotating slurry at the circumferential edge of the dispersion disk, thereby improving the dispersion effect of the slurry.
[0013] Therefore, this invention can overcome the defect of poor dispersion effect in the production of existing silicone sealants and improve production efficiency. Attached Figure Description
[0014] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model;
[0015] Figure 2 This is a side view structural diagram of the AA section of an embodiment of this utility model;
[0016] Among them, 1. Matrix; 2. Dispersion sheet; 3. Guide arc strip; 4. Diverter plate; 5. Diverter hole. Detailed Implementation
[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0018] like Figure 1 As shown, a dispersion disc for silicone sealant production includes a circular substrate 1, with a stirring shaft (not shown) fixedly connected to the center of the substrate 1; six upwardly protruding dispersion plates 2 are evenly arranged on the circumference edge of the substrate 1; six flow guiding arc strips 3 are evenly arranged between the stirring shaft and the circumference edge of the substrate 1; a pair of flow dividers 4 are also symmetrically arranged between the stirring shaft and the circumference edge of the substrate 1, and six flow divider holes 5 are evenly arranged on the flow dividers 4.
[0019] In actual production, firstly, a high-viscosity silicone rubber base material with a viscosity range of approximately 50,000 cP is selected for production, and a dispersion disc with a diameter one-third of the inner diameter of the reactor is chosen. Then, the base material and filler are added from the feed port of the reactor, and the stirring system is turned on. Initially, low-speed stirring at 300 rpm is used to initially wet the filler, and then the speed is gradually increased to 2000-3000 rpm, and the position of the dispersion disc is raised to the middle of the liquid. The vacuum system is turned on and the vacuum degree is maintained at -0.09 MPa for dispersion and degassing of the liquid. At the same time, the liquid is heated and maintained at 60℃ to reduce viscosity. The dispersion time is set to 25 minutes. After dispersion, the liquid is discharged through the valve at the bottom of the reactor. The results show that the D90 particle size is ≤10μm and the bubble content is ≤0.5%; the dispersion time is short and the dispersion effect is good.
[0020] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.
Claims
1. A dispersion disc for producing silicone sealant, characterized in that: The device includes a circular substrate with a stirring shaft fixedly connected to its center. Several upwardly protruding dispersion plates are evenly arranged on the edge of the substrate's circumference. Six flow-guiding arc strips are evenly arranged between the stirring shaft and the edge of the substrate's circumference. A pair of flow-dividing plates are also symmetrically arranged between the stirring shaft and the edge of the substrate's circumference, and several flow-dividing holes are evenly arranged on the flow-dividing plates.
2. The dispersion disc for silicone sealant production as described in claim 1, characterized in that: The dispersion sheet is provided in 6-10 pieces, the length of the dispersion sheet is one-tenth to one-twentieth of the circumference of the matrix, and the width is one-fifth to one-tenth of the length.
3. The dispersion disc for silicone sealant production as described in claim 1, characterized in that: The length of the flow guide arc strip is half the radius of the dispersion disk, and the distances from both ends of the arc strip to the outer edge of the stirring shaft and the outer edge of the dispersion disk are the same; the width is one-sixth to one-twelfth of the length; the curvature of the flow guide arc strip is the same as the curvature of the circumference of the dispersion disk.
4. The dispersion disc for silicone sealant production as described in claim 1, characterized in that: The length of the flow divider plate is two-thirds of the radius of the dispersion disk, and its two ends are at the same distance from the outer edge of the stirring shaft and the outer edge of the dispersion disk; the width is one-eighth to one-fifteenth of the length.
5. The dispersion disc for silicone sealant production as described in claim 1, characterized in that: The diversion holes are circular holes and are evenly distributed on the diversion plate.
6. The dispersion disc for silicone sealant production as described in claim 1, characterized in that: The flow divider and the dispersion plate have the same height, with the height of the flow divider being one-eighth to one-tenth of its length; the height of the flow guide arc strip is two-thirds of the height of the flow divider.