Nitrogen closed circulating pressure spray dryer 20kg

The dryer is a device that can complete drying and granulation at the same time. According to the process requirements, the pressure, flow and orifice size of the feed pump can be adjusted to obtain the required spherical particles in a certain proportion. The spray dryer is a continuous atmospheric pressure dryer. Use special equipment to spray liquid materials into mist, so that they can be dried by contacting with hot air. The working principle of closed spray dryer is to work in a closed environment, and the drying medium is inert gas, which is suitable for drying toxic materials or dried
Materials that are prone to oxidation during the process.
Anaerobic nitrogen dryer, comprising a dryer body and nitrogen oxygen separation equipment, wherein a drying chamber is provided inside the dryer body, and an inlet is provided at the upper end of the dryer body
Material inlet, the upper end of the feed inlet is connected to a storage tank, one end of the drying chamber is connected to an air inlet, and the air inlet is connected to the nitrogen oxygen separation equipment through a pipeline. One end of the nitrogen oxygen separation equipment is connected to an air filter, and the outside of the air filter is connected to a suction pump
An air pump, wherein the nitrogen oxygen separation equipment comprises an air compressor, an air buffer tank, and a nitrogen oxygen separation tank. The air filter is connected to the air compressor, and a high-pressure air valve is provided on one side of the air compressor, which is connected to the air buffer
The output pipe of the air buffer tank is connected to the * * * of the nitrogen oxygen separation tank.
The above-mentioned existing technical solutions have the following defects: they cannot detect the air pressure inside the dryer in a timely manner and cannot adjust the internal pressure of the dryer based on real-time air pressure.
A nitrogen closed circulating pressure spray dryer, including a frame, a drying tower, a nitrogen conveying device, a feeding device, a material receiving device, a condensation recovery device and a pressure regulating device, the drying tower is fixedly installed on the * * * of the frame, one side of the drying tower is provided with a nitrogen conveying device, the output end of the nitrogen conveying device is connected with the interior of the drying tower, the top of the drying tower is provided with a feeding device, the other side of the drying tower is provided with a material receiving device, and the output of the drying tower
The internal connection between the end and the receiving device, the condensation recovery device is fixedly installed on the rack, and the condensation recovery device
The input end is connected to the interior of the material receiving device, and the output end of the condensation recovery device is connected to the interior of the nitrogen conveying device,
The pressure regulating device is fixedly installed on one side of the drying tower, and is used to adjust the internal pressure of the drying tower
The rack is also equipped with a control box.
In further embodiments, the condensation recovery device comprises a condenser, a liquid collector, and a return pipe. The interior of the condenser is connected to the output end of the collection device. One end of the condenser is equipped with a liquid collector, one end of the return pipe is connected to the interior of the condenser, and the other end of the return pipe is connected to the interior of the nitrogen delivery device.
In further embodiments, the pressure regulating device comprises a pressure sensor and an electromagnetic valve, wherein the pressure sensor is disposed inside the drying tower, the electromagnetic valve is disposed on the return pipe, and both the pressure sensor and the electromagnetic valve are