Plate and flow coolers for pre-cooling and instant cooling of milk. Plate cooler for milk. Characteristics Assembly drawing plate cooler for milk
Plate milk cooler SAK gently and quickly cools milk to the temperature of the water in the water lines, thereby saving the total energy spent on cooling. The solenoid valve opens the water supply to the cooler only when the milk supply pump and the milk receiver are running. The SAK plate cooler is looped into the system when flushing the milk line.
The plate cooler is intended for preliminary cooling of milk. The use of a plate cooler prevents the rapid growth of bacteria by quickly cooling freshly milked milk from 35°C to approximately 12-20°C, and also reduces the load on milk cooling tanks that are used to further cool milk to a temperature of +4°C.
Milk pre-cooling is a very important process, especially for large and medium-sized farms. Large milk yields and fast filling of cooling tanks means slower cooling and faster bacterial growth, and vigorous agitation of the incoming milk increases the risk of milk churning into butter. In practice, it has been proven that the rapid cooling of milk using a plate heat exchanger allows you to cool warm milk in a few seconds to a safe temperature. In addition, the pre-cooling of milk makes it possible to reduce energy costs by almost half, as a result of which the plate heat exchanger in most cases pays for itself after 1-2 years of operation.
The principle of operation of a plate heat exchanger.
During the milking process, the milk is pumped at a constant speed through the filter into the plate cooler. Milk and cold water, separated by plates, flow opposite to each other. The milk flows on one side of the cooler plates, while on the other side water flows from the tap in the opposite direction. In this case, heat exchange occurs through the metal plates. When the milk passes completely through the plate cooler, the temperature of the milk is reduced to a certain value (depending on the water temperature and the type of cooler) and transported further into the milk tanks for further cooling or storage.
Plate coolers are available in sizes suitable for the milk pump on the milking machine. Well water plate cooler or optional well water/ice water combination. With the frequency-controlled milk pump SAC, low-cost and effective cooling is obtained.
It is also possible to use the water used for drinking cows, which allows you to reduce the temperature of the milk by up to 80%.
The plate cooler (Fig. 75) consists of a set of stamped stainless steel plates, which are isolated from each other by rubber gaskets. The plates are fastened with two sidewalls tightened with bolts. Channels for milk and coolant are separated. When cooling with cold water, a counterflow scheme of milk and water is used.
The number of plates in the working package determines the heat exchange surface and the performance of the cooler, which is calculated taking into account the initial temperature of the coolant and milk in heat exchange, and the required final temperature of the milk.
The coolers are designed for operation at a ratio of milk and cooling water supply equal to 1:3, and when cooled with brine - 1:2. Plate coolers are used as part of OM-1 and OM-1A milk cleaning units, OOT-M and OOU-M automated units, which provide two-stage cooling. In the first section, milk is cooled with tap water, and in the second section, it is additionally cooled with brine or water cooled in the refrigeration system.
Fig.75. Scheme of operation of the plate cooler:
1 - sidewalls; 2 - plate; 3 - gaskets; 4 - hot water outlet hose; 5 - milk supply hose; 6 - cold water supply hose; 7 - chilled milk outlet hose.
Cleaner-cooler OM-1 (Fig. 76) consists of a frame on which a separator-cleaner, an electric motor and a plate cooler are installed, connected in a single production line.
Fig.76. Cleaner-cooler OM-1:
1 - milk cooler; 2 - centrifuge; 3 - bed
In the cleaner, the drum speed is 100 s -1 . It is equipped with a pressure disc that provides the necessary pressure to move the milk. The performance of the cleaner is 1000 dm 3 /h, weight 200 kg, electric motor power 1.1 kW.
During the operation of plate coolers, they should not only be washed with water and disinfectant solutions after the end of milk processing, but also disassemble, clean and wash at least once a week.
7.6 Milk transport and storage equipment
Milk is transported in flasks and tanks. The tanks are equipped with an insulating layer that protects the milk from heating. Tank capacity 2000 ... 10 000 kg. They are self-propelled based on the chassis of the car and removable.
In our country, ATsPT-5.6 milk tanks with a capacity of 5600 liters (on the chassis of a MAZ-type car) are widely used; ATsPT-53 and ATsPT-2.8-130 - 2800 l (on the chassis of cars of the GAZ and ZIL types), ATsPT-2.1A- 2100 l (on the chassis of a GAZ car).
The tanks are covered with a layer of insulation, due to which in 10 hours in summer the temperature of milk rises by 1.5 ... 2 "C.
A trailer with a capacity of 2800 liters is attached to the tank based on the chassis of a MAZ-type car.
Inside the farm, milk is transported using milk pumps (centrifugal, plunger and diaphragm), through pipelines and in technological equipment that does not have its own pressure devices.
For cream and other viscous liquids, gear pumps are used below the level of the container.
Milk is stored in tanks, and dairy products are stored in refrigerators.
LIST OF USED SOURCES
1. Mechanization and automation in the creation and production of plants / O.S. Marchenko, O.V. Datsishin, Yu.M. Lavrinenko and others; for red.
O.S. Marchenko.- K: "Harvest" -1995 - 416 p.
3. Heat power installations and systems in the agricultural state /B.Kh.Draganov, O.F.Bulyanda, A.V.Mishchenko. - K .: Harvest, 1995 - 224 p.
V.G.Koba, N.V.Braginets, D.N., Murusidze. Mechanization and technology of livestock production.-, M: "Agropromizdat".-2000-293 p.
4. Revenko I.I., Braginets M.V., Rebenko V.I. Machines that possession for creatures.-K: "Condor" -2009-730 p.
TESTS FOR CONTROL OF KNOWLEDGE ON MACHINES AND EQUIPMENT IN ANIMAL HUSBANDRY
Task 1. How is the degree of feed grinding on the Volgar-5 feed grinder regulated?
Task 2. How is the degree of feed grinding on the Volgar-5 feed grinder regulated?
Task 3. How to regulate the degree of grinding on the grinder IGK-F-4?
Task 4. How to regulate the degree of grinding in the universal hammer crusher KDU-2?
Task 5. How to regulate the degree of grinding in the universal hammer crusher KDU-2?
Task 6. How is raw material crushed in hammer mills?
Task 7. How is the distribution rate regulated on the KTU-10A feeder?
Task 8. How to regulate the rate of issue on the RSP-10 feeder?
Task 9. How is the feed rate regulated at the feeder KS-1.5?
Task 10. How is the rate of issue on the KUT-3.0A feeder regulated?
Task 11. Which of the feeders provides mixing of feed?
Task 12. What is the individual drinker?
Task 13. With the help of what working body is water supplied to centrifugal pumps?
Task 14. What water supply mechanism is used on individual cup drinkers?
Task 15. What water supply mechanism is used on group drinkers?
Task 16. What device is used to regulate the supply and pressure of water?
Task 17. What is the sequence of operations when removing solid bedding manure?
Task 18. What operation does the scraper manure conveyor TSN-3.0B (KSG-1) perform in a livestock building?
Task 19. What is the principle of movement of the scraper manure conveyor TSN-3.0B (KSG-1)?
Task 20. What is the working body of the manure transport TS-1?
Task 21. Which of the indicated milking units is used for milking in the milking parlour?
Task 22. Which of the indicated milking units is used in an individual farm?
Task 23. Which of the phenomena leads to a violation of the vacuum in the milking unit?
Task 24. How is the accuracy of the readings of the ADM-52 group milk meter regulated?
Task 25. Where is the KI-4840 device placed when determining the tightness of a vacuum system?
Task 26. Which of the following operations does not apply to the primary processing of milk?
Task 27. What operation is not provided by the pasteurization and cooling unit OPU-3M?
Task 28. Which of the operations does not belong to the list of preparatory operations for machine milking cows?
Task 29. Which of the following installations provides simultaneous cooling of milk and heating of process water?
Task 30. What is the structural difference between a water ring vacuum pump and a rotary one?
EXAM QUESTIONS
FOR MACHINERY AND EQUIPMENT IN ANIMAL HUSBANDRY
Classification of farms by animal species and method of keeping.
Promising equipment for the preparation and distribution of feed in animal husbandry.
Classification of preparation methods for feeding coarse, succulent and concentrated feed.
Equipment for grinding stalked feed.
Crushers - feed grinders.
Equipment for cleaning and grinding root crops.
Feed mixing equipment.
Equipment for dosing bulk, concentrated and liquid feed.
Feed shops.
Stationary and mobile small-sized feed units.
Classification of equipment for the distribution of feed.
Trailed and self-propelled feeders for cattle. Farm harvesters.
Stationary feeders for cattle.
Trailed and stationary feeders for pigs.
Classification and characteristics of water sources and water supply schemes.
Pumps for lifting and supplying water to consumers.
Water towers and automatic water-lifting installations.
Individual and group drinkers for cattle and pigs.
Microclimate requirements, classification of air exchange methods in livestock and poultry buildings.
Equipment for air exchange and air heating in rooms.
Devices for heat recovery of exhaust air in rooms.
Classification and characteristics of methods and means of manure removal.
Scraper conveyors for removal of manure.
Manure disposal equipment.
Classification of milking units.
Individual and stationary milking units.
Classification and characteristics of equipment for the primary processing of milk.
Refrigeration and heat-refrigeration installations.
Equipment for the use of solar energy for heating water on livestock farms.
The device, workflow and operating rules of the universal feed crusher KDU-2.
The device, workflow and operating rules of a small-sized crusher
The device, workflow and operating rules of the crusher DB-5.
The device, workflow and operating rules of the universal grinder IKV-5A "Volgar".
The device, workflow and operating rules of the pin grinder IGK-F-4.
The device, workflow and operating rules of the IKM-5 washer-stone separator and the KPI-4 root cutter.
The device, workflow and operating rules of the S-2 feed mixer.
The device, workflow and operating rules of the small-sized feed mill UMK-F-2.
Device, workflow and operating rules for feeders KTU-10A and RMM-F-6.
Device, workflow and operating rules for feeders RSP-10 and ARS-10.
Device, workflow and operating rules for stationary feeders TVK-80B and KLO-75.
The device, workflow and operating rules of the feeder for pigs KUT-3A.
Device, workflow and operating rules for submersible pumps.
The device, workflow and operating rules of the water tower of the Rozhnovsky BR.
The device, workflow and operating rules of the automatic water-lifting installation VU-5-30.
The device, workflow and rules for the operation of cup automatic drinking bowls PA-1, AP-1A, PBS-1.
Device, workflow and operating rules for TSN-3.0B and TS-1 scraper manure conveyors.
The device, workflow and operating rules of the set of equipment for the fermentation of manure "KOBOS".
Device, workflow and operating rules for individual milking installations UID-10.
The device, workflow and rules for the operation of installations for milking in cans UDB-100.
Device, workflow and operating rules for milking installations in the milk pipeline UDM-50, UDM-100, UDM-200.
The device, workflow and operating rules of the heat-refrigeration unit THU-14.
The device, workflow and operating rules of the feeder for pigs KS-1.5.
Device, workflow, operating rules and testing of vacuum pumping units.
The Protemol company produces plate coolers with a capacity of 1,000 to 50,000 liters per hour for cooling milk, kefir, milk formulas, wine, beer, juices, water and other low-viscosity, and in some cases viscous, food liquids.
You can purchase standard plate coolers with standard layouts.
You can specify such conditions as: cooled product, temperature conditions, available refrigerants and their multiplicity, and other parameters. After processing your application by the design department, you will receive a technical and commercial offer for a cooler that meets exactly your requirements. To do this, you need to fill out a questionnaire sent upon request when contacting the company's sales department.
You can purchase all the necessary spare parts for coolers: plates, including those for brine, rubber seals, beds, and other components.
Design features
1. Coolers are manufactured as one-section and two-section.
2. AISI304 or AISI316 material plates are used, clip type seals.
3. Complete set of instrumentation
4. Complete with temperature control system
5. Completion with anti-freeze system of the product.
Produced by KR-Tech LLC (an analogue of OOL-10, OOL-15, OOL-25, 001-U10 milk coolers) is designed specifically for the rapid cooling of milk, as well as juices, beer, kvass, water and other products in a closed flow with taking into account modern technological and sanitary requirements. They are used at the enterprises of the dairy industry in the areas of acceptance and in auxiliary operations where the process of cooling milk is necessary, for example, in the production of baked milk.
It consists of a frame and a set of plates attached to it. In accordance with the terms of reference, the cooler can consist of 1, 2 or more sections, for example, 1 section - cooling with cold (artesian water), 2 section - cooling with ice water or brine. Plate coolers for milk are easy to maintain and allow for disassembly for visual inspection and replacement of seals. 
In accordance with one of our principles, we use components only from trusted world manufacturers - for the production of plate coolers for milk, we use plates from the company API Schmidt-Bretten (Germany), providing highly efficient heat transfer and the best sanitary performance. The design of the heat exchangers ensures reliable sealing and eliminates the ingress of coolant into the product through the seals. The parts and assemblies of the cooler in contact with the product use metals, rubber and other materials approved by the Ministry of Health of the Russian Federation for contact with food products.
As a rule, plate milk coolers are made entirely of stainless steel, but in many cases it is possible to use pressure plates made of painted steel. In this case, stainless pipes are provided in the plates, through which the product passes. The price of such heat exchangers is much lower than heat exchangers made entirely of stainless steel.
Plate cooler for milk. Characteristics
No. p / p |
Parameter |
Meaning |
| 1. | Product | Milk |
| 2. | Productivity, t/h | 0,25…100 |
| 3. | Initial temperature of the product at the inlet, 0 C | +25…+30 |
| 4. | Final temperature of the product at the outlet, 0 С | +4..+6 |
| 5. | coolant | ice water, propylene glycol, NaCl brine up to 25% |
| 6. | Coolant temperature, 0 С | -17…+2 |
| 7. | Insert material | AISI 316L, titanium |
| 8. | Seal material grade | EPDM, NBR |
| 9. | Mounting type seals | clip |
Plate coolers for milk produced by KR-Tech LLC are lightweight and small, which significantly reduces the occupied production area. Plate coolers for milk are installed on the floor on adjustable feet or rigidly bolted to other bases.
In the case of using highly concentrated brine as a coolant, we will produce for you plate cooler for milk made of titanium plates.
KR-Tech LLC has extensive experience in the production of various . Turning to us, you can be sure that you are dealing with an expert in heat exchange processes in food production.
