QUICK FREEZER FAQ

The First cold chain quick freezer Introduction:Quick freezer is a fast freeze equipment, the product in a relatively short period of time by -35℃ even more lower temperature make the product center temperature reaches -18℃, (3cm thick below the frozen product (excluding packaging), within 30min product center temperature from +15 down to -18 ℃ As the standard), in order to achieve the product lattice does not change, the water does not precipitate, to achieve product reversibility of fresh. Easy to transport products, products to achieve the complementary season, the maximum extent to ensure that the product of fresh.The working principle:The quick freezer unit is mainly composed of a quick-freezer machine, a refrigeration system and an electrical control system. The worker will put a frozen plate of frozen food or directly through the quick-frozen inlet into the quick-freezing machine ,so that the product is heated by the central temperature Or other temperatures, to -18 degrees.Quick Freezer machine classificationTunnel freezer is simple structure, easy operation, wide range of applications. Affordable. Suitable for a variety of products quickly frozen.Such as :meat seafood.Spiral freezer is the use of spiral transmission products, small footprint, the amount of freezing, so this mechanism can produce a larger production of quick-frozen equipment, the current application is also more, mainly used in the food industry frozen industry.such as:meat seafood.Fluidized bed IQF freezer is the use of the end of the way to make the product in the fluid process to achieve rapid freezing, suitable for  individually product quick freezing.such as : fruit and vegetable etcLiquid nitrogen tunnel freezer is a new type of efficient quick-freezing machine temperature up to -196 degrees, this equipment is suitable for product more thickness, product value-added products,Compared with other quick-freezing machines, this equipment does not compress the unit, the equivalent of the same production rate of freezer, the purchase cost is low, but the use of relatively high cost, the user can be based on local conditions and product value selection of this equipment.Impingement Tunnel Freezer is suitable for freezing granular,small or flat products,such as : shrimps ,meat patties for burgers etc. it had special air flow design.both sides or products are blown with high pressure air while they are conveyed by the belt through the freezer.it minimizes retention time for the food products to be frozen and reducing weight loss to higher yield.    

How to choose IQF freezerFeature of   IQF freezer .Polyurethane insulation board design for IQF freezer , the main stainless steel structure to facilitate construction. (1) Temperature range: -40ºC±3ºC .(2) Capacity : Customize. From 100kg/h to 3000kg/h.(3) Functions:  quick frozen (4) Fully or automatic control system.(5) Easy to install and dismantle(6) Temperature adjust (7)PLC electric control ( LG,SIMENS, OMRON..famous parts)(8) Refrigerant:R507/R404A/R717Components:(1) Insulation Panel: PU+doors (2) Evaporator: FST air-cooler.(3) Conveyor device: Gear +belt (4) Condensing unit: Germany Bitzer, America Copeland, Italy  Frascold ,China brand Etc(5)Other accessories: world-famous brands, like Danfoss, Castle, Every Control, Siemens, LG,SchneiderApplication of IQF Freezer :Food (seafood ,meat,pork, beaf,chicken , vegetable, fruit, dairy...Doors:1).Swing door .2).Swing door:manual opened,automatic,e3).Door board made with special pressing technology PU material.4).Door frame: stainless steel.5).Surface material: stainless steel with protecting film.Panels:Cold room insulation panel:use 100%polyurethane insulation panel,density about 36~42kg/m3,with gasket,with flame retardant, fire-resistant panel thickness:150mm~200mm, standard width of panel is 960mm Evaporator type Evaporator Cooled TypeEvaporator Condenser+axial fanIQF freezer typeType Tunnel Fluidized  Spiral            Capacity   100-2000kg/h500-4000kg/h300-3000kg/h  Apply product table for referenceFrozen products Instant  freezer choose typeMeat, seafood Tunnel freezer or spiral freezer fruit, vegetable, small seafood ,small blockNo packing productFluidized bed freezer Big capacity or high auto product line Spiral freezercompressor type and condensercompressor typebitzer(Germany)Frascold (Italy)Copeland (US)China brand condenserair cooledwater cooledEvaporative  Panels information-35~-42℃150mm/200mm PUpanel steel coverSS, Color steel etc

spiral freezer is a kind of compact structure, widely applicable, cover an area of an area small, rapid freezing, freezing capacity of equipment, It suitable for food processing enterprise at home and abroad is used in frozen goods.Scope of application: prepared food, seafood , ice cream, noodle, split meat and poultry, aquatic products, Fried food, small package food, etc.we have more than 20 years experience in spiral freezer filed. First cold chain company’s Spiral freezer is a typical energy-efficient , quick freezer equipment with characteristics such as compact structure,multiadaptive,small occupation area,large freezing capacity.and it is the preference for food processing enterprises that focus on huge thicken meats and other food with pretty high material temperature  all over the worldApplication:frozen prepared food, ice cream, pastry, split meat&poultry, seafood, fried food, small package frozen food China spiral freezer Structural componentsThe Spiral freezer is mainly by transmission part, evaporator, PU and electrical apparatusThe transmission part is consists of transmission motor, net belt, drum and independent frequency converter.The evaporator is composed of stainless steel and aluminum fins, with variable sheet spacing to ensure smooth wind circulation. The evaporator pipe can be aluminum tube, copper tube and stainless steel tube;The PU is made of stainless steel +  Polyurethane insulation    The electrical system is composed of stainless steel box well-know electrical components  and PLCChina spiral freezer Feature:1. High freezing capacity and more automation;2. Compact structure and Saving floor occupying;3. Transmission network belt, with strong resistance to elongation and high abrasion resistance, thus improving the service life and stability of the equipment;4. The equipment is equipped with a network belt to run the self-inspection device, which can monitor the network operation status at any time and eliminate unnecessary losses caused by the operation of the network belt.5. With Outside transmission system , the equipment, reliable operation, energy saving, easy maintenance, in line with HACCP requirements.

First cold chain spiral freezer overall advantage1. Quick-frozen indoor clean and safe and reliable and energy saving2. Restrictions on tape device, automatic fault alarm device, automatic stop device manually; Reliable operation running smoothly3. Polyurethane insulation board; Duplex stainless steel anti-collision plate4. Inside spiral freezer internal maintenance channel; the evaporator water defrosting device Facilitate cleaning maintenance5. Inside spiral freezer within the whole welding stainless steel 304, and plate, side a sink, and avoid dust sleeper, ensure food safety and health.6. Frozen zone frame structure, support, support, platform, air duct plate, mesh belt, skeleton, parts and components adopt food-grade SUS304 stainless steel (reducer, motor and other standard parts and special parts except).7. In the reasonable air distribution ventilation, wind speed field and temperature field uniform stability, uniform freezing temperature;8.With Outside transmission system , the equipment, reliable operation, energy saving, easy maintenance, in line with HACCP requirements.9. Import and export parts designed to return by parts, stainless steel wind shield, shipment into bar insulation device, adjustable import and export of stainless steel wind heat preservation device, prevent different lead to two different temperature regions of the air pressure inside and outside air cold heat exchange cooling capacity loss.10.The access door use SUS304 stainless steel double-sided self-extinguishing flame retardant rigid polyurethane insulation board, set safety electric heating devices, resistance to low temperature aging oil sealing strip, can open internally, accord with requirement of GB2894 safety warning signs, safe in operation.11. Large effective special evaporator, the evaporation temperature and frozen indoor temperature difference is reduced, defrosting lag, defrosting independent drainage, separated from the cleaning water drainage, to facilitate defrosting water reuse.12. Electric control1. All motors and power distribution cabinet external electrical components is not lower than IP55 protection grade, motor uses Y2 type waterproof.2. Equipment, safety protection device is installed inside, can timely show abnormal of equipment operation, so that timely troubleshooting, import and export are equipped with an emergency stop device.3. Electrical materials: the main control electrical components mainly adopts Schneider brand. 4.According to the customers requirement offer PLCCompressor unitCompressor unit use well-know brand + company independent design and assembly, improve efficiency and prolong service life. 

Tunnel freezer IntroductionTunnel freezer is a simple structure of the freezer, It can be divided into different forms of belt and steel sheet . The tunnel quick freezing is divided into two kinds of stainless steel mesh belt and Module mesh belt . It is used for quick-freezing of aquatic products (shrimp, fish fillet, squid, scallop) meat and various frozen foods (dough, egg tarts, etc.) Processing.Composition: tunnel type freezer mainly by the transmission part, evaporator, PU and electrical equipmentChina tunnel freezer FeaturesThe net belt with a large stick chain transmission, reduce mechanical friction, running the use of rectangular square tube + ultra-high wear resistance. The structure of the freezer inside is made of stainless steel, water defrosting series device, the transmission shaft is usually stainless steel shaft, clean and sanitary, the equipment is reliable, long service life, the belt can be ventilated up and down, the freezing speed is fast.Evaporator: the evaporator is made of stainless steel or copper or aluminum tube and aluminum fins, with variable sheet spacing to ensure smooth wind circulation.high heat transfer efficiency, quick freeze (cooling )fast, evaporator along the belt with the direction of running ,Wind area is large, therefore not easy to frost, can be a long time continuous production. PU: Insulation with double-sided stainless steel polyurethane 150mm insulation board body board, insulation effect is good, PU door for the double-sealed and with electric heating, effectively prevent freezing.Electrical system: The use of stainless steel control cabinet, electrical components are used well-know brands, beautiful appearance, easy to operate. According to customer requirements using PLC control.

Tunnel freezer advantage A. The overall structureThe use of stainless steel overhead tripod, flat to install the ground foundation without special requirements, the bottom of the library design a certain degree of tilt, easy to clean, to minimize the breeding of bacteria.B. 1. tunnel Freezer body based on the indoor assembled cold storage (ZBX99003-86), "combination refrigerator with heat insulation sandwich board" JB/T6527-2006 standard production, production, installation and acceptance. Library board adopts double stainless steel self-extinguishing flame retardant polyurethane sandwich insulation board, panel thickness 0.8mm+0.5mm SUS304 stainless steel plate, the plate thickness 150mm.2. Thermal insulation material, the plate adopts self-extinguishing flame retardant rigid polyurethane meet the following indicators: 40 kg/m3 density requirements or greater (less than a full board average density, then cutting sampling density); Coefficient of thermal conductivity is 0.024 w/m.k or less; Requirement: the compressive strength of the wall panel, roof is 150 ~ 200 Kpa, ground 300 Kpa or higherBibulous rate is 4% or less; Dimensional stability 3. The door : Library door for the double seal and with electric heating, effectively prevent freezing.C .Mechanical transmission1. Conveyor belt, chain network USES the food grade bright spring SUS304 stainless steel, with smooth surface, plate, wear shaft connected with flexible operation, large roller transmission chain net rolling;2. Mesh belt and guide slide friction in contact area using high molecular wear-resisting PVC materials. Make  guide slide friction is more reliable when in contact with the mesh belt and separation, not to drop crumbs, ensure the security of the frozen goods.3. Inlet platform fortification material ultra-high transfinite device, adjustable stainless steel wind insulation device; discharging mouth platform set up automatic blanking.4. The transmit driver using frequency conversion speed reducer, mesh belt running frequency control of motor speed, frozen time adjusted.D. Evaporator, and Defrosting1. Evaporator according to feed liquid evaporation temperature -45℃ design selection.2. Evaporator using efficient is treated by surface oxidation rust from aluminum finned tube, to ensure uniform frost, air flow, bracket plate shell adopts stainless steel wind.3. With high efficiency and energy saving, low noise axial flow fan, ram is stainless steel, it is anti-rust aluminum alloy blades, motor is fully enclosed moisture proof waterproof at low temperature, stable running.4. Adopts manual gas defrosting method, gas defrosting water spray device in evaporator, strong frost uniform, rapid, complete, gas defrosting drain avoid ice blocking drainage and wind circulation, fortification gas defrosting water splash.E. Electric control1. All motors and power distribution cabinet external electrical components is not lower than IP55 protection grade, motor uses Y2 type waterproof.2. Equipment, safety protection device is installed inside, can timely show abnormal of equipment operation, so that timely troubleshooting, import and export are equipped with an emergency stop device.3. Electrical materials: the main control electrical components mainly adopts Schneider brand.4.According to the customers requirement offer PLCF. Compressor unit Compressor unit use well-know brand + company independent design and assembly, improve efficiency and prolong service life.

Main structure and configuration of the Liquid Nitrogen quick freezerThe equipment is a continuous production line，Safe and durable，Easy operation. Quick freezing machine mainly by the body, insulation system, transmission system, refrigeration system, control system Body and thermal insulation systemBody design:The thickness of the inner cavity and the outer cavity is 2MMsus304 food grade stainless steel plate shearing and bending.The position of the force with the reinforcement and reinforcement of Teflon，To ensure long-term bearing does not deform，Make the craft beautiful.   Integrated electric cabinet，Save space.Thermal insulation layer：Germany imported BASF polyester raw materials.Multi layer thermal insulation foam insulation layer, insulation layer thickness: 150mmEquipment maintenance：Adopt integral lifting system，Easy to clean and maintain the conveyor beltThe bottom of the body with drain out，In order to discharge equipment to clean waste residue and water；Design of equipment with long life and low consumption，Simple and rapid replacement of vulnerable parts，Excellent maintainability.Lifting screw material is SUS304.Transfer systemFood transportation： SUS304 food special conveyor belt，With variable frequency adjustable speed motor，Conveying speed can be adjusted according to different products；The device is also provided with a mesh belt tightness adjusting device，To ensure the stable and long life of the food conveyor beltVariable frequency motor and speed reducer，Adjustable speed。Conveyor belt is stainless steel 304 chain plate mesh belt，Corrosion resistance and low temperature resistance，Can be used for a long time.Refrigeration systemLiquid nitrogen flow control solenoid valve：KEIHIN solenoid valve with manual liquid nitrogen stop valve joint control, equipped with redundant systems, in which a group of faults, but also normal production, to ensure adequate safety A series of stainless steel nozzles formed in liquid nitrogen quick freezing zone formed a uniform and stable liquid nitrogen cold flow, and the nozzle has a long life without damage.The conveyor belt is equipped with a spray device，Automatic manual operation，Can open all the work can also open the work independently.The upper and lower spray angle can be adjusted, so that the speed of product production more uniform effectLow temperature long axis motor and aluminum alloy axial fan，In the air cooling mode, it can guarantee the fast convection cooling, at the same time, it can ensure the uniform temperature field and the fan speed can be adjusted.Fan blade angle can be adjusted manually according to different productsLiquid nitrogen transfer tube：Low temperature high pressure liquid nitrogen conveying pipe，The outer layer is treated by heat preservation，Not easily damaged，Can effectively reduce the loss of liquid nitrogenThe feed end and the discharge end are provided with a tail gas outlet, which is connected with a large flow frequency conversion fan, and the tail gas of the quick freezing line can be drawn out to the designated position for discharging or pre cooling materialControl systemThe control system has two kinds of automatic and manual refrigeration mode, the user can choose according to the different production needsWith the running speed of the network, the fan speed can be adjusted by frequency conversion, matching the different temperature to adapt to different frozen categoriesThe use of man-machine interface (touch screen) input, PLC intelligent control, with PID automatic adjustment function, can be divided into ten steps to cool and heat preservation, automatic alarm after the end of all proceduresPT100 platinum resistance temperature measurement，Measuring range：200℃～-200℃。 SIEMENS 10 inch color screen，Manual and automatic operation，Input is intuitive and simple.Can store a variety of refrigeration technology, one button operation.Contactor, button: all imported Schneider components, reliable and durableBelt drive system is equipped with independent frequency conversion motorAt the discharge end of the equipment, the receiving end of the electric cabinet is equipped with emergency stop safety switch to ensure the safety of different stations at any time 

The fluidized quick freezing principle Fluidized quick-freezing  is simply the role of solid particles by the air flow, the movement of its shape into a similar fluid state, and in the course of the movement was quickly frozen,As a result of strong cold air flow and food particles full of each other, the heat transfer in food quickly, greatly improving the heat transfer efficiency. At the same time the air flow will also be fully blown food, and get a  individually quick freeze effect.Main application The fluidized bed quick freezing is the best choice for grain,slice,nubby fruit,vegetable’s quick individually freeze ,It can also be applied to seafood, such as scallops, shrimp, fillets and other continuous rapid freezing.Main form One-section fluidized quick freezing is especially suitable for vegetable and  fruit quick frozen .Two-section fluidized quick freezing In the best conditions to freeze a variety of food, food without damage, food is not sticky.Main composed The FSLD series individually quick freezing (IQF) is composed by product inlet/outlet ,PU , the belt ,the transmission system,the unique ventilation system ,the evaporator ,the centrifugal fans ,the electrical control system.Main feature 1.The fluidized bed quick-freezing  uses two conveyor belts to transport food. This structure is characterized by the food is divided into two sections of the freeze, the first section for the surface frozen area, the second section of the deep frozen area; granular food into the freezing room, the first rapid cooling, the surface cooling to freezing point temperature , then into the second section,  in the ideal fluid bed under the deep freeze. 2. Two sections of the belt with speed, to adapt to a variety of food freeze needs. 3. Two speed belt: in the best conditions to freeze a variety of food, food without damage, food is not sticky. 4. Centrifugal fan: The system uses high-pressure centrifugal fan, a large static pressure within the scope of the corresponding wind, to ensure the formation of fluid bed, while extending the frost interval. 5. The device frame using  stainless steel, each fan pressure box separate to ensure that low load, even if there are individual fans to stop running, it will not affect the normal operation of other fans. 6. The PU use 150mm, double-sided stainless steel plate, insulation effect is remarkable, beautiful appearance. 7. Conveyor mesh belt with stainless steel conveyor belt, all with food contact parts are stainless steel, to ensure food hygiene requirements.8.Electronic control system: a separate control panel can be independent of the electrical start and control network transmission speed operation.

 Impact tunnel Freezer Body: 1. Freezer body based on the indoor assembled cold storage (ZBX99003-86), "combination refrigerator with heat insulation sandwich board" JB/T6527-2006 standard production, production, installation and acceptance. Library board adopts double stainless steel self-extinguishing flame retardant polyurethane sandwich insulation board, panel thickness 0.8mm+0.5 mmSUS304 stainless steel plate, the plate thickness 150mm2. Thermal insulation material, the plate adopts self-extinguishing flame retardant rigid polyurethane meet the following indicators: 40 kg/m3 density requirements or greater (less than a full board average density, then cutting sampling density); Coefficient of thermal conductivity is 0.024 w/m.k or less; Requirement: the compressive strength of the wall panel, roof is 150 ~ 200 Kpa, ground 300 Kpa or higher;Bibulous rate is 4% or less; Dimensional stability 3. Stainless steel plate with binding and firm, between the cohesive force between the two should be greater than 98.1 N/cm2, without cracking phenomenon. Use overall foam type, no per foliate pinhole, more than 30mm plane direction depth direction more than 10mm porosity, raw material, slag inclusion, burning core, influence the properties of heat insulation defects such as mixed waste phenomenon.4. Library board adopts eccentric hook connection method, flat-fell seam to play four glue, process the hole or Angle of foam tank seam. Smooth, strong stability, tidy and beautiful, no warping, scratches and knock against, pollution, cold, and run the wind leakage phenomenon.B ) Mechanical transmission:1. Conveyor belt, chain network USES the food grade bright spring SUS304 stainless steel, with smooth surface, plate, wear shaft connected with flexible operation, large roller transmission chain net rolling;2. Mesh belt and guide slide friction in contact area using high molecular wear-resisting PVC materials. Make  guide slide friction is more reliable when in contact with the mesh belt and separation, not to drop crumbs, ensure the security of the frozen goods.3. Inlet platform fortification material ultra-high transfinite device, adjustable stainless steel wind insulation device; discharging mouth platform set up automatic blanking.4. 4. The transmit driver using frequency conversion speed reducer, mesh belt running frequency control of motor speed, frozen time adjusted.C ) Evaporator, and Defrosting:1. Evaporator according to feed liquid evaporation temperature -42 ℃ design selection.2. Evaporator using efficient is treated by surface oxidation rust from aluminum finned tube, to ensure uniform frost, air flow, bracket plate shell adopts stainless steel wind.3. With high efficiency and energy saving, low noise axial flow fan, ram is stainless steel, it is anti-rust aluminum alloy blades, motor is fully enclosed moisture proof waterproof at low temperature, stable running.4. adopts manual water defrosting method, water defrosting water spray device in evaporator, strong frost uniform, rapid, complete, water defrosting drain avoid ice blocking drainage and wind circulation, fortification water defrosting water splash.D ) .Electric control:1. All motors and power distribution cabinet external electrical components is not lower than IP55 protection grade, motor uses Y2 type waterproof.2. Equipment, safety protection device is installed inside, can timely show abnormal of equipment operation, so that timely troubleshooting, import and export are equipped with an emergency stop device.3. Electrical materials: the main control electrical components mainly adopts Schneider brand. 

Quick freezing Rapid freezing of food by exposure to a blast of air at a very low temperature. Unlike slow freezing, very small crystals of ice are formed which do not rupture the cells of the food and so the structure is relatively undamaged.A quick‐frozen food is commonly defined as one that has been cooled from a temperature of 0 °C to −5 °C or lower, in a period of not more than 2 hours, and then cooled to −18 °C.The basic principle Mechanical cold storage This method of storing fruits in a good adiabatic building, equipped with mechanical cold storage unit, and according to the variety of fruits on the storage temperature, humidity and ventilation requirements of the cold storage system for human regulation and control , So the storage time longer, the effect is better. A, mechanical cold storage principle. Mechanical cold storage is the use of liquid gas (refrigerant) is very low temperature, it evaporated under low pressure into gas, which absorb heat, to achieve the purpose of cooling. In addition to the low boiling point refrigerants, but also requires no harm to human organs, the metal does not play a corrosive effect, no risk of combustion and explosion, does not react with the lubricant, but also should have good heat absorption, evaporation More heat absorption, low pressure in the high pressure condensing system, lower viscosity and cheaper prices.Related Products：Feature of instant freezer , Tunnel  freezer ,Spiral freezer ,IQF freezer