Pulse vacuum dryer is a latest type of vacuum drying equipment designed and manufactured for ordinary vacuum drying boxes, which have large temperature differences inside the box, slow drying speed, inconsistent drying of upper and lower materials, and easy foaming and overflow of materials during the drying process, extending the drying time.
Pulse vacuum dryer is widely used in industries such as medicine, food, light industry, chemical industry, etc. for low-temperature drying. It adopts an internal and external heating type (heating the radiator and inner plate inside the box) and uses pulse displacement to quickly remove bubbles after heating the material. The temperature inside the box is uniform and consistent, and the drying speed is fast, the pollution is small, the energy consumption is saved, and the production efficiency is improved. It will not damage the internal quality of the dried goods; accord withThe latest regulatory requirements of GMP.

1. According to the temperature value during material drying, set the advance amount in the PLC control program to keep the control temperature within the limit temperature range.

2. Using pulsating air exchange to suppress material foaming.

3. The vacuum system adopts a Roots water ring vacuum unit, which performs phased variable frequency speed regulation vacuum extraction to accelerate the extraction rate.

In order to solve the problem of slow heating rate and improve the temperature uniformity inside the box, the pulsating vacuum dryer adopts an internal and external heating type, which includes flat plate heating and jacket (five sides in total, including top and bottom, left and right, and back)）Heating, both flat and jacket heating can be separately controlled for temperature.

1. Flat heating adopts hot water heating, which ensures uniform heating of materials, increases the heat exchange area, and improves the heat absorption rate;

2. The jacket heating adopts hot water or steam heating to increase the heat exchange surface of the inner wall of the box, so that the steel plate and heat exchange plate on the inner wall of the box are heated simultaneously, increasing the heating rate in cold state, preventing water vapor from liquefying and dripping into the medicine when encountering the cold plate, and avoiding unnecessary secondary evaporation of condensed water, greatly increasing the drying efficiency.

3. Using PLC+touch screen+Temperature controller+transmitterControl, achieve automatic control of various programs and real-time online display, recording, printing, and storage of various parameters. All valves adopt electric or pneumatic valves to achieve fully automatic process control.

4. The drying efficiency of the pulsating vacuum dryer is 200% higher than that of a regular vacuum dryer.

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