一种用于柳氮磺吡啶生产用的干燥装置
By designing a rotating rod, disc, and semi-circular box structure, the problem of air circulation inside the feeding pipe was solved, the residence time of the heating gas was extended, and efficient drying of sulfasalazine was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU HUANGHE PHARMA CO LTD
- Filing Date
- 2025-09-01
- Publication Date
- 2026-07-17
AI Technical Summary
In existing drying equipment used for sulfasalazine production, air cannot circulate inside the feed pipe, leading to increased air saturation and reduced evaporation and drying efficiency.
A drying device comprising a rotating rod, a disc, and a semi-circular box was designed. The rotating rod drives the disc and semi-circular box to achieve up-and-down movement of particles and gas flow, thereby extending the residence time of the heated gas and quickly removing moisture through a one-way valve and a suction channel.
It improves drying efficiency, ensures effective contact between heating gas and materials, quickly removes moisture, and enhances the drying effect.
Smart Images
Figure CN224517231U_ABST
Abstract
Claims
1. A drying apparatus for use in the production of sulfasalazine, comprising a drying cylinder (1), characterized in that: A rotating rod (2) is rotatably connected to the drying cylinder (1), and the rotating rod (2) passes through the upper and lower ends of the drying cylinder (1). A disc (3) is fixedly connected to the rotating rod (2). The disc (3) is attached to the upper surface of the bottom of the drying cylinder (1). An air supply chamber (4) is opened inside the disc (3). The air supply chamber (4) is semi-circular. A lower air hole (5) communicating with the air supply chamber (4) is opened at the top of the disc (3). A semi-circular box (8) is fixedly connected to the rotating rod (2). The semi-circular box (8) is attached to the lower surface of the top of the drying cylinder (1), and the semi-circular box (8) and the air supply chamber (4) are staggered. An upper air hole (9) is opened at the bottom of the semi-circular box (8), and the upper air hole (9) is connected to the interior of the semi-circular box (8).
2. The drying apparatus for sulfasalazine production according to claim 1, characterized by: The downwind vent (5) is provided in multiple locations.
3. The drying apparatus for sulfasalazine production according to claim 1, characterized in that: A one-way valve (6) is installed inside the downdraft opening (5).
4. The drying apparatus for sulfasalazine production according to claim 1, characterized in that: The upper air vent (9) is provided in multiple ways.
5. The drying apparatus for sulfasalazine production according to claim 1, characterized in that: The bottom end of the rotating rod (2) is provided with an air supply channel (7), and the air supply chamber (4) is connected to the air supply channel (7).
6. The drying apparatus for sulfasalazine production according to claim 1, characterized in that: The top of the rotating rod (2) is provided with a suction channel (10), which is connected to the interior of the semi-circular box (8).
7. The drying apparatus for sulfasalazine production according to claim 1, characterized in that: The top of the drying cylinder (1) is provided with a drive assembly for driving the rotating rod (2) to rotate. The drive assembly includes a motor (11), a first gear (12) and a second gear (13). The motor (11) is fixedly connected to the top of the drying cylinder (1). The first gear (12) is fixedly connected to the drive shaft of the motor (11). The second gear (13) is fixedly connected to the rotating rod (2). The first gear (12) and the second gear (13) are meshed together.
8. The drying apparatus for sulfasalazine production according to claim 1, characterized in that: A stirring blade (14) is fixedly connected to the rotating rod (2).
9. The drying apparatus for sulfasalazine production according to claim 1, characterized in that: The bottom end of the drying cylinder (1) is fixedly connected to multiple support columns (15).