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The meat product can be dried alternately between cold air (10°C) and hot air (40-60°C). The internal fatty meat tastes better after drying. However, the cold-air drying time should not be too long because the surface of the sausage is prone to generate water.
1.Stage 1: constant rate of drying
It lasts for 5-6 hours, and the temperature quickly rose to 60-65 degrees within 2 hours after the sausage was loaded into the roasting room. The purpose is to make the inside and outside of the fresh sausage reach the same temperature within two hours. The heating process is also the fermentation process of the seasoning and meat. It can prevent the meat from changing its color and taste. After the warm-up time, adjusting the temperature to 45-50 degrees. At this stage, the surface water has been evaporated, and the color has changed from off-white to light red. This stage is the color changing period
2.Stage 2: deceleration drying phase
It last for 15-18 hours, which is not only the color fixing period, but also the shrinking and setting period.
3.Stage 3: colorfixingperiod
The temperature is controlled at 52-54 degrees for 4-6 hours, the sausage gradually turns from light red to bright red, and the casing begins to shrink.
4.Stage 4: shrinkage & setting period
The shrinking and setting period lasts for 11-12 hours. During this period, the water content inside the sausage continues to decrease, the sausage shrinks significantly, and the appearance appears uneven. The final drying humidity of the sausage is controlled at about 17%.
5.Stage 5: configuration and energy consumption:
7p drying room size is 4.2×2.2×2.6m
Each batch can dry 500-600 kg of sausages
Hourly power consumption is less than 6 degrees
If the drying time is 50 hours, the drying cost per catty of sausage is: 6×50/1000=0.3 kilowatt of electricity
Schematic diagram of the working principle of air-energy drying equipment for bacon
Integral side air supply
Integral upper air supply
Integral rear air supply
1.Integrated machine with lateral air supply : it controls the start and stop bottom of the drying room, and controls the temperature, humidity and dehumidification time of the drying room. It also provides heat energy for drying materials.
2.Warehouse with polyurethane sandwich board: it provides heat preservation for materials in the drying room.
3.Fan wall: it provides wind energy for the materials to bring out the moisture in the materials, and it can bring out the heat energy in the mainframe to make the drying room heat up or cool down.
4.Air guiding wall: it guides the wind of the fan wall to the front end, so that the air volume before and after the drying room is consistent, which achieves the purpose of uniform drying.
Material racks / carts
Polyurethane foam insulation drying room
Use 100mm thick polyurethane, color steel plate or stainless steel plate inside and outside, and use 100mm thick polyurethane foam insulation at the bottom of the drying room
Machine Technical Parameters
|Air supply||Low temperature type with circulating side air supply||Integral low temperature type with circulating rear air supply||Integral low temperature type with circulating upper air supply|
|Operating temperature range||-10~43℃||-10~43℃||-10~43℃|
|Operating temperature range||30~75℃||30~75℃||30~75℃|
|Outdoor machine||Unit Type||AHRZ||070S-ZD||140S-ZD||070S-B-ZD||140S-B-ZD||070S-U-ZD||140S-U-ZD|
|Rated heating capacity||kW||22.0||43.0||22.0||43.0||22.0||43.0|
|Operating electricity current||A||11.2||22.4||12.2||23.7||11.2||22.4|
|Compressor type||/||High temperature, enthalpy-increased and fully-enclosed scroll type|
|Temperature control accuracy of drying room||℃||±1|
|Total fan power||kW||/||/||0.25||0.55||0.25||0.55|
|Fresh air volume||m³/h||/||/||2000||4000||2000||4000|
|Electric heating power||kW||6||12||6||12||6||12|
1.It can simulate winter weather conditions, and the equipment can automatically achieve cold air drying (10°C) and hot air drying(75°C) ;
2.High degree of automation, touch screen control. It can accurately control the temperature and humidity of the drying room;
3.The production environment is sanitary, and there is no discharge of exhaust gas, waste water or waste residues during the operation process;
4.Save labor cost, no need to arrange full-time personnel to guard the equipment；
5.Designed with large air volume, drying time is much more shortened；
6.Special circulating air design,drying in different areas is much more uniform；
7.Scientific dehumidification design, better dehumidification effect；
8.Dehumidification heat recovery, reduce heat loss from dehumidification, and reduce air humidity in the drying room.
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