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Main Principle:
Adopts the two stage belting structure---fristly, quick-cooling step. Secondly, deep-freezing step. Independently speed control system, and the speed of the two meshbelts can be changed infinitely.
1. Quick-cooling stage---the food particles are to be quick cooled after entering into the blast room. The surface of the particles would frozen and reach the temperature of 0 C. Meanwhile, with the help of the striking chain, the particles would neither stick together nor sticke on the stainless steel meshbelt.
2. Deep-freezing stage---the food is to be moved on a stainless steel meshbelt, the foodstuff layer loosens with the increasing of the airflow. Some of the foodstuff particles become floating(this is the reason why this equipment is not applicable to big bulk foodstuff) when the air pressure reaches a certain scale, which brings interspace among the foodstuff particles, that is the way the fluidized bed come into being.

Main Features:
1. It makes quick freezing by two ends and form crystal temperature on surface and guarantees frozen products non-agglomerating into deep freezing stage in ideal fluidized status under high-pressure cold wind and high-frequency chain pulse.
2. With most advanced high pressure special for fluidized freezing, large blast centrifugal technology can make frozen products in suspension status and shortened freezing time by 30%.
3. Most advanced conversion infinite speed variation technology makes conveying speed to the standard of precision control procession to meet needs of advanced freezing.
4. Optimum design of aluminum evaporator combining with high-pressure centrifugal technology guarantees 12-hour efficient running of equipment under non-frost condition.
5. The frame of freezing machine is made by stainless steel and each air blower is separated to ensure its normal running.
6. Insulating storehouse is made by double-surface stainless steel plate with polyamine core, which is quick in installation, good in insulating effect and nice and clean.
7. Conveying belt and all contact parts with the belt are made by stainless steel and guarantees healthy standard of food.
8. It is equipped with most advanced belt auto frost-reducing, cleaning and drying devices, which is convenient and clean in use.

Main Parameter:

Model	LSZ-500	LSZ-1000	LSZ-1500	LSZ-2000	LSZ-3000	LSZ-4000	LSZ-5000
Output (kg/h)	500	1000	1500	2000	3000	4000	5000
Overall dimensions (m)	7.1×3.9×3.7	9.1×4.1×3.7	11.6×4.1×3.7	13.6×4.1×3.7	15.6×4.2×3.7	16.6×4.5×3.7	17.6×4.7×3.7
Freezer length (m)	5.5	7.5	10	12	14	15	16
Width of screen belt (m)	1	1.2	1.2	1.2	1.3	1.3	1.3
Material feeding T (°C)	+15
Material discharging T (°C)	-18
Freezing T (°C)	-36 ±2
Freezing Time (min)	5~50(Continually adjustable)
Coolant	R717 / R22
Cold load (kw)	92	165	248	300	450	540	630
Installed power (kw)	24.6	33.7	39.2	44.7	57.4	81	92.1