Single Cone Spiral Vacuum Dryer for Raw Materials
Single cone spiral vacuum dryer
It is the vacuum drying equipment that has been widely used in the production of pharmaceuticals in European and American countries. Manufacturers with many years of experience in the production of raw materials know the technical advantages of the single-cone spiral vacuum dryer, such as optimized mixing system, heating efficiency of dried materials, high Quality and precisely manufactured components, precision of the minimum distance between the helical agitator and the drum wall, reliable and robust design, minimal maintenance. This kind of equipment is still blank in China, and the successful development of this drying equipment has also greatly improved the level of equipment produced in the domestic medical and chemical industry.
5. The main structure of the single-cone spiral vacuum dryer for raw materials
1. Agitator: Double motors, double reducers, and double-shaft transmission execute the revolution of the cantilever shaft and the rotation of the stirring shaft. The stirring shaft is equipped with a specially designed sanitary double-end mechanical seal.
2. Cylinder: The cylinder consists of a head and a conical cylinder. The head and the cylinder are jacketed for heating and heat preservation. There are necessary manholes, process nozzles, sight glasses, stable pressure, and long service life. Stirrer, bottom discharge valve, upper feed valve, dust filter.
3. Dust filter: The dust filter is composed of a heat-insulated and heated outer cylinder, a filter element, a blowback and a cleaning device.
4. Stirring screw: the screw itself is conical, the diameter of the screw thread rises from the bottom to the top, the mixing screw is fully cantilevered to avoid the need for a bottom support bearing, a solid central gearbox assembly and a top bearing arrangement, the mixing screw has a The hollow solid central shaft and the spiral scraper continuously welded on the central shaft, the double-sided hollow spiral scraper and the hollow central shaft form a heating circuit.
5. Mechanical seal system: The mechanical seal liquid is used as an external liquid barrier and a safe mechanical seal indication system, which is designed to have a thermosiphon cycle or a pump cycle and an electric control switch. All mechanical seals of the dryer pass through a common Circulation, the two internal loop systems between the double-end mechanical seals are connected to an external liquid storage lubricating seal liquid storage tank, so that the safety and preventive control of the seal integrity by monitoring the liquid level, mechanical seal products The connection parts meet the standard, the tank is filled with sterile water liquid, it can be circulated and can be completely emptied, the liquid system operation conforms to the GMP standard.
6. Inflatable and sealed hemispherical valve (feeding and discharging valve of vacuum dryer): This hemispherical valve is designed to meet the special needs of feeding and discharging of single cone vacuum dryer. The valve is manufactured according to precise tolerance standards. Combined with the special structure, a good vacuum and pressure sealing environment is formed. The standard airtight airtight design has no dead ends and is easy to clean. It meets the standards and can be cleaned online.
6. Design Features
1. Modular drive system, interchangeable with various specifications, standardized and systematic design.
2. Modular dust filtration system, interchangeable with various filter specifications, standardized and systematic design.
3. Hemispherical valve, universal in all specifications, standardized design.
4. Modular rotary joint, interchangeable with various specifications, standardized and systematic design.
5. Vacuum sampling valve, universal in all specifications, standardized design.