Qiao Feng brand spray drying how to achieve spray drying operation through steam nozzle

Product description of small spray dryer:

QFN-6000Y small spray dryer (small spray dryer / small spray dryer) and it is mainly suitable for the production of trace particles in universities, research institutes and food, pharmaceutical and chemical enterprise laboratories, for all solutions such as emulsions and suspensions It has broad-spectrum applicability and is suitable for drying heat-sensitive substances such as biological products, biological pesticides, enzyme preparations, etc. Because the sprayed material is only subjected to high temperature when sprayed into mist-sized particles, it is only heated momentarily. It can keep these active materials from being damaged after drying.

Small spray drying tower realizes spray drying operation through atomizing steam nozzle

The small spray drying tower is a type of continuous atmospheric pressure dryer. Special equipment is used to spray the liquid material into a mist, so that it is dried in contact with hot air. Used for drying some heat-sensitive liquids, suspensions and viscous liquids, such as milk, eggs, tannins and medicines. It is also used to dry fuel, intermediates, soap powder and inorganic salts.

Atomizing steam nozzle of small spray drying tower

If you want to reduce the pressure of the steam while the superheated steam is cooling, you often choose the atomizing steam nozzle (sometimes often called a two-material nozzle) to deal with the superheated steam. Similar to the cooling nozzle of the fixed nozzle, the cooling water splashed into the superheated steam is also sprayed through the fixed nozzle. Generally speaking, people use high-pressure steam before decompression and distribute the total flow into two parts. This total flow distribution can be achieved by another additional nozzle to achieve automatic cooling water splashing. With this method, the steam cooling adjustment range of the fixed nozzle can be increased. The advantages and disadvantages of this device are similar to the cooling water sprayer, but the size of the output part is smaller.

Steam converter for small spray dryer tower

If you need to reduce the pressure of steam in the pressure reducing valve by more than half (empirical estimate), you will encounter the bottleneck problem of speed of sound. It is also often called the limit flow problem in process enterprises. Just like the rapid flow of water in the valve, ideally it should flow out without leaving a drop. In order to solve the bottleneck problem, the nozzle is sprayed with cooling water in the valve cone. When the pressure difference is large, the method of multi-stage decompression is often used, but at this time, the problem of increased steam volume must be considered. When the load range is small, a single-stage decompression method with subsequent capacity expansion can be used, which is a cheap equipment solution with good results. Another method is the combined decompression method that combines steam converter atomizing nozzles, which can achieve a wide range of steam decompression adjustment.

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