Fish Drying Technology

There are many types of dried fish, which are made by fully drying fresh fish. Dried defatted fish is made of high-quality fresh fish as raw material, and is refined through high-temperature cooking, drying and other procedures, and all indicators meet the standards stipulated by the state. In addition to the traditional process, drying in the sun means that there are many types of drying equipment on the market. If you use coal or oil boilers and wood-burning equipment to dry, it is very unsanitary for food, so it has not been used. In order to solve various problems in drying dried fish, our company solemnly launched a new type of energy-saving dried fish drying oven.

Dry fish drying generally has the following tips:
1. The temperature in the early stage should not be too high, so as not to affect the quality after drying due to high temperature;
2. Fish generally has a relatively large water content. In addition, there are fats and oils in fish, and dehydration is difficult, so it is very important to control the dehydration speed.
3. The color of dried fish is very important after drying;
4. Maintain a certain air volume during the drying process to avoid water vapor staying on the surface of the material.
The solution of heat pump fish drying oven:
1. A heat pump drying oven is used to fully dry the dried fish. The drying process has low energy consumption and effectively reduces operating costs.
2. The drying process is well ventilated, the surface of the dried fish is heated evenly, and there is no need to manually enter and turn it. The gloss of dried fish is maintained, and the quality of the finished product can be unified without manual separation.
3. Control the corresponding parameters of dried fish drying, intelligently control the problems in the drying process, and intelligently handle abnormal situations.
Generally, fish drying ovens are divided into two categories, fish drying rooms and fish drying all-in-one machines. The output of the all-in-one machine is smaller than that of the fish drying room. Next, I will introduce you to the detailed information of these two fish drying ovens.

1. Fish drying room

The first type of drying is the fish drying room. The fish drying room is equipped with a trolley with trays and tray racks. When we dry the fishs, we put the fishs in the tray, on the tray rack of the cart, and push it into the fish drying chamber to dry. Fishs are putted on the shelf car and enter the closed cycle drying room for drying without any pollution in the process. The heat source of the fish drying room is air. The heat in the air is absorbed by the heat pump compressor. After being compressed and released, a large amount of high-temperature hot air can be obtained, so as to achieve uniform drying and processing of fishs.

Components of heat pump fish drying room

One set heat pump fish drying room contains: heat pump drying host, drying chamber, fan frame with fan, trolley with tray. The drying chamber is used 100mm polyurethane insulation board, supporting 304 stainless steel trolleys and trays. The main structure of the beef drying room is divided into: heat pump drying dehumidifier, drying room, hot air circulation system, dehumidification system, automatic intelligent control system, and high-efficiency waste heat recovery dehumidification device.

The working principle of heat pump fish drying room

The heat pump fish drying room uses the reverse Carnot principle to let the hot air circulating blower dry the vegatable. Compressor and other equipment make up the refrigerant circulation system. The fan impeller rotates, the outside air enters the oven, passes through the heater, forms hot air, and then enters the studio through the gap of the air distribution plate, and a large amount of hot air in the circulating flow continues to enter the new air inlet for supplementation. The moisture discharged after recovery is discharged from the exhaust port. The whole cycle makes the vegatable heated evenly and achieves the purpose of drying.

Technical parameters of heat pump fish drying room

heat pump dehydration room list
type	machine size(MM)	Capacity (KG)	power	Qty of fan	fan power	total power（kw）	Qty of cart	Qty of tray	cart size(MM)	tray size(MM)
3P A	3500×2200×2200	200-400	2.25	6	0.25/pc	3.75	6	78	670×810	600×800
8P A	5300×2200×2800	450-750	6	12	0.37/pc	10.44	6	156	1210×870	600×800
15P	7500×3000×2800	900-1500	11.25	12	0.55/pc	17.85	12	312	1210×870	600×800
1P D	1180×680×1800	50-80	1	—	—	1	—	15	—	600×800
3P D	2100×930×2100	120-300	3.5	—	—	3.5	—	40/60	—	600×800
8P D	4000×1960×2050	650-1000	8	—	—	8	8	232	600×800	600×800
The drying machine can be equipped according to the user's requirement and the production demands.

Advantages of heat pump fish drying room

1 Wide application. Suitable for vegetable, fruit, seafood, spice etc different kinds of material.
2 High drying capacity. Each hour can drying 3-4kg water.
3 Better drying effect. Can better keep material shape , color , nutrition etc.
4 Simple operating. PLC touch screen control panel , can set up temperature, humidity in advance  
5 Low energy consumption. Heat pump system, can save 70% energy.

Other application areas of heat pump fish drying room

Heat pumps fish drying machine can be used in many applications, in addition to drying beef can also be used in agriculture, industry, seafood, grain, herbal medicine, construction, paper products, condiments, mineral industry, etc.
1. Dried fishs such as radish, lettuce, pumpkin, carrot, spinach, cassava, etc.
2. Fruits such as apples, lemons, mango slices, dried longan, dried longan, etc.
3. Dried fish such as sausage, beef, duck, ham, etc.
4. Others it can dry noodles/wooden/incense/herbs/floss etc.

2. All-in-one fish drying machine

The another one is the all-in-one fish drying machine. The drying principle is the same as that of the fish drying room. The all-in-one fish drying machine is equipped with a cart with trays and tray racks. When drying fishs, we put them in trays, put them on the tray racks of the cart, and then push them into the fish drying chamber for drying.
The heat source of the fish integrated drying is air energy. The heat in the air is absorbed by the heat pump compressor. After compression and release, a large amount of high-temperature hot air can be obtained, so as to achieve continuous and uniform drying and processing of fishs. The operation of this all-in-one drying unit is relatively simple, simply plug in and dry.

Components of all-in-one fish drying machine

One set all-in-one fish drying machine contains: power jack, water outlet,exhaust air outlet, supporting wheels, PLC controller pancl, door lock, observation window,circulating air inlet, outlet for hot and dry air, PP tray, stainless steel tray, supporting racks for trys. The fish all-in-one machine has compact structure, good energy-saving effect, wide application range, high drying quality, convenient operation, simple installation and disassembly. It is the best drying equipment for small businesses, drying experiments and scientific research. The user only needs to connect the power to use, it is the easiest to operate fish drying.

Technical parameters of all-in-one fish drying machine

All-in-one food dryer list
type	machine size(MM)	Capacity (KG)	power	total power（kw）	Qty of cart	Qty of tray	cart size(MM)	tray size(MM)
1P	1180×680×1800	50-80	1	1	—	15	—	600×800
3P	2100×930×2100	120-300	3.5	3.5	—	40/60	—	600×800
8P	4000×1960×2050	650-1000	8	8	8	232	600×800	600×800
The drying machine can be equipped according to the user's requirement and the production demands.

Advantages of all-in-one fish drying machine

1. Stainless steel 304 material. The whole machine uses stainless steel material, can work a long time, and keep better heat preservation, bottom have wheeler, can move easily.
2. Great energy saving. Heat pump system design, low energy consumption, can save 75% energy than traditional electricity element heating.
3. Wide application easy operation. Fit for wide application, seafood, fruit,meat, spice, herbs, etc all can use it to dry.
4. Gentle drying. Temperature range 40-80°C, low temperature dehydrate processing can better keep material nutrition, during drying, no need to move the machine.

The above are the two fish drying ovens we commonly use. At the same time, our company also produces and microwave drying machines. If you are interested in fish drying ovens or want to know more about fish drying ovens, please feel free to contact us.

Fish drying oven video：