Introduction to laver：

  The shape of seaweed varies from species to species. Porphyra is a marine red algae, and its frond is composed of a layer of cells embedded in a thin layer of gum, dark brown, red or purple. Laver grows on the rocks in the shallow sea intertidal zone. It is rich in protein, iodine, phosphorus, calcium, etc., and is used for food and medicine. Laver is often mistaken as a plant because of its photosynthesis, but biologists generally believe that it is not a real plant because it has no real pipe tissue (xylem and phloem), which is different from aquatic plants.

Laver drying process：

  The drying process is determined by three elements: drying temperature, humidity in the machine and room, and drying time (processing speed). After dehydration, the weight of the cakes must be kept in the range of 25-50 grams. The water content of the vegetables at the beginning is more, and then gradually decreases. During the drying process, the setting temperature should be based on the 65-75% drying of the laver to the rear (reversing part of the curtain frame, NS type) as the standard, and the drying time of the combined water is relatively long.
  After entering the upper part of the dryer, the combined water starts to evaporate from the surface and edge parts. If the front temperature is set too high, the laver will begin to shrink in the lower part of the dryer, so that white spots appear and other qualitative changes (such as redness, etc.) are prone to occur. As mentioned earlier, the three elements of drying are temperature, humidity and time. The adjustment method is mainly carried out by air intake and exhaust. In application, the indoor humidity and air exchange rate should be adjusted according to the drying condition of dried laver, and attention should be paid to guiding people. The secondary air is mixed and used.
  Laver can be dried directly after washing and draining. Therefore, various adjustable parameters need to be controlled during drying. The drying degree of laver is generally at room temperature to 75°C, and the drying time is about 10 hours. The humidity is 20%, and the temperature and humidity are adjusted according to the change of time during drying.

Recommendation of laver dryer/drying machine

Commercial 100-3000kg/h large amount of dehydration wide application and easy operation

  Heat pump drying machine use the principle of inverse Carnot cycle. It absorbs low-temperature heat energy in the air, which becomes high-temperature heat energy after efficient heat collection and integration by the heat pump system, and is transported to the drying room for cyclic heating and drying of materials.It refers to exhausting the hot and humid air in the drying room directly to the outside of the drying room through dehumidification device, and then replenishing natural fresh air.

  Hot air circle drying machine belongs to high temperature heat pump unit. Its working principle is: the working fluid of the heat pump is compressed by the compressor, becomes high temperature and high pressure gas, enters the condenser, condenses and liquefies the heat, and is used for air heating in the drying room. The moisture in the material is vaporized and evaporated by the form of hot air, and the evaporated water vapor is discharged by the moisture discharge system, thereby achieving the purpose of drying the drying material.


Laver drying video：