A melting tank for film production
By employing a sandwich structure between a heating tank and an inner melting tank, along with a coordinated design of a stirring shaft and a flow guide frame, a three-dimensional mixing flow field is formed in the gelatin melting tank. This solves the problems of uneven gelatin melting and high energy consumption, thereby improving the efficiency and quality of film production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI HAODONG BIOLOGICAL TECH CO LTD
- Filing Date
- 2025-07-08
- Publication Date
- 2026-07-17
AI Technical Summary
Existing gelatin melting tanks suffer from uneven melting, high energy consumption, and reduced gelatin quality when handling various material states. In particular, they are prone to forming blind spots, localized overheating, and air bubble entrapment during the stirring process, which affects the quality of the gelatin sheets.
The heating tank and the inner melting tank are sandwiched together to achieve uniform heating in an annular shape. Combined with the coordinated design of the stirring shaft, the guide frame and the scraper, a three-dimensional mixing flow field is formed through radial shear flow and axial convection. The flow field is optimized to achieve efficient mixing and avoid molecular structure damage and bubble entrainment caused by high-speed stirring.
This method achieves efficient melting of gelatin, shortens melting time, reduces energy consumption, and ensures the viscoelasticity of the adhesive and the forming quality of the film, while reducing mixing dead zones and localized overheating degradation problems.
Smart Images
Figure CN224510136U_ABST
Abstract
Claims
1. A melting tank for film production, characterized in that, include: An inner melting tank (1) is provided with an inner melting cavity (101) for containing adhesive liquid. The outer wall of the inner melting tank (1) is provided with a heating tank (2) for heating the inner melting tank (1). The inner wall of the heating tank (2) and the outer wall of the inner melting tank (1) are used for pouring heating medium. The melting cavity (101) is provided with a stirring spindle (3) rotating inside. The stirring spindle (3) is provided with a plurality of horizontally extending stirring rods (4). The extended stirring rods (4) are configured to stir the adhesive liquid after being driven to rotate by the stirring spindle (3). A flow guide (5) is provided in the melting cavity (101). The flow guide (5) is provided with an inclined lifting flow guide slope (501). The lifting flow guide slope (501) is configured such that after the extended stirring rod (4) drives the glue to rotate, the lifting flow guide slope (501) provides an upward force for the rotating glue.
2. The melting tank for film production according to claim 1, wherein The bottom of the stirring spindle (3) is provided with a bottom scraper (6). The bottom scraper (6) and the bottom surface of the melting cavity are set at an angle. The bottom end of the bottom scraper (6) slides against the bottom wall of the melting cavity (101) to scrape the bottom wall of the melting cavity (101). The bottom scraper (6) is configured such that after being driven to rotate in one direction by the stirring spindle (3), the inclined bottom scraper (6) provides a downward force for the bottom adhesive flow.
3. The melting tank for film production according to claim 1, wherein The guide frame (5) is also provided with a downward guiding slope (502). The downward guiding slope (502) is located below the lifting guiding slope (501). The extended stirring rod (4) is configured to rotate in the opposite direction after being driven by the stirring main shaft (3), thereby driving the adhesive to rotate in the opposite direction. The downward guiding slope (502) provides downward force to the rotating adhesive.
4. The melting tank for film production according to claim 1, wherein It also includes a side wall scraper (7), which is disposed on the stirring spindle (3) and is vertical. The side wall scraper (7) is configured to slide against the side wall of the melting cavity (101) after being driven to rotate by the stirring spindle (3), and is used to scrape the side wall of the melting cavity (101).
5. The melting tank for film production according to claim 3, wherein The inlet (102) of the melting cavity (101) is located on the top wall, the flow guide (5) is located below the inlet (102), and the downward flow guide slope (502) is provided with several protrusions (503) to generate local turbulence for the rotating adhesive flow.
6. The melting tank for film production according to claim 1, wherein A set of extended stirring rods (4) are symmetrically arranged at the same height on the stirring main shaft (3), and several sets of extended stirring rods (4) are arranged along the axial direction of the stirring main shaft (3).
7. The melting tank for film production according to claim 1, wherein A heating element (8) is inserted between the inner wall of the heating tank (2) and the outer wall of the inner melting tank (1) for heating the heating medium.
8. The melting tank for film production according to claim 1, wherein The heating tank (2) is provided with an insulation cover (9) on the outside, and an insulation cavity (10) is formed between the insulation cover (9) and the outer wall of the heating tank (2).
9. The melting tank for film production according to claim 1, wherein A rotating driving member is arranged on the top wall of the inner melting tank (1) to drive the rotating of the stirring main shaft (3).
10. A melting tank for film production according to claim 1, characterized in that, A temperature detecting member is arranged in the inner melting tank (1) to detect the temperature of the glue liquid.