Milk coolers

Chemical scientists have proven that in milk cooled within 3 hours after milking to a temperature of + 10 ° C, the development of lactic acid bacteria slows down, and when cooled to + 4 ° C, the development of bacteria stops. This allows you to keep the resulting product fresh for 48 hours for further processing at dairies. Thus, to obtain good income from the sale of the product, you must be able to quickly and efficiently cool it.

Ways to cool milk

Cooling methods for several millennia of cattle breeding have not undergone special changes. In ancient times, a container with milk was lowered into a river, a well, or a deep basement, the temperature in which was kept low, regardless of the outside air temperature.

Now for cooling you can use:

• natural ways - immersion in cold water or snow;
• artificial ways.

Did you know? Milk is the only product, each element of which is absorbed and used by the human body.

Natural way

To reduce the temperature, you will need a container that is larger in size than a container with a product. In her recruit cold water or snow. A container of milk is immersed in the prepared medium. The disadvantage of this method is that only a small amount of liquid can be cooled.

Special coolers

A more effective way would be to place the milk in a special refrigerator or container (tank). The temperature decrease of such a capacity occurs due to the external cooling circuit, in which the refrigerant circulates. The product is placed in an installation like a regular refrigerator.

Learn more about processing methods and types of cow's milk.

Chiller classification:

• open and closed milk tanks;
• Plate and tube heat exchangers.

The equipment varies according to the degree of automation of its maintenance processes, the type of cooling, etc. Plate heat exchangers are usually connected to a water mains. A decrease in temperature occurs as a result of heat exchange between two non-touching media, milk and water, moving along their contours (plates). Such equipment is often used for pre-cooling milk, which is immediately sent to the dairy. Irrigation coolers are used on milking production lines. In them, the milk is fed to the working surface and cooled, and then moves to the milk collection container. The performance of such equipment for 1 hour of operation is 400-450 liters.

Cooling tanks by device type

Tanks-coolers are designed to reduce the temperature and storage of the product. All types reduce the temperature of the product from +35 ° C to +4 ° C in a few hours and then maintain it automatically. Mixing layers to eliminate the temperature gradient also occurs in automatic mode. Devices can be open and closed types.

The composition of the tank cooler:

• refrigeration compressor unit - the main device that provides cooling;
• electronic control panel;
• mixing device;
• automated washing system;
• thermally insulated container is cylindrical or elliptical in shape.

The reliability of the system is determined by the reliability of the refrigeration compressor unit. The best are the devices in which when the compressor fails, the emergency system is activated, which continues cooling until the compressor is repaired.

Closed type

The device may be oval or cylindrical. The material for the manufacture of the inner tank is food grade steel AISI-304. The body is sealed and has a reliable insulating layer. A closed tank is used for large batches of the product - from 2 to 15 tons. The operation of the chiller and subsequent maintenance are fully automated.

Important! The tank cooler should not only reduce the temperature of the milk, but also clean it from bacteria that enter it from the cow’s body and during the milking process, so when purchasing a cooler, be sure to choose a model with a special anti-bacterial filter.

Open type

Open tanks are used to cool small batches - from 430 to 2000 liters. The basis of the design is a thermally insulated cylinder with an automatic milk mixing function. Washing equipment is carried out manually. A feature of the open type design is the folding upper part of the tank.

Specifications of some milk coolers

The main technical characteristics of tank coolers are:

• equipment dimensions;
• volume of working capacity;
• temperatures - initial and final for milk, as well as the environment;
• type of cooler.

Modern installations also take into account the reliability of the compressor, the presence of emergency operation, the quality of work on automated cleaning.

Familiarize yourself with the best breeds of dairy cows, and learn how to milk a cow to get high milk yields.

Fresh Milk 4000

Installation is made of high-grade food steel AISI-304. The cooler is equipped with a compressor Maneurop (France). The milk is cooled by a sandwich type evaporator, which guarantees reliable construction of the structure for 7 years. Service systems - mixing and washing are fully automated.

Important! A decrease in temperature in 3 hours is a standard indicator for coolers. But the model range also contains settings that reduce the temperature in 1.5-2 hours.

Mueller Milchkuhltank q 1250

Coolers of the German brand Mueller - a combination of rapid temperature reduction with low power consumption. The cooler has a high level of reliability and workmanship.

Nerehta UOMZT-5000

Nerehta UOMZT-5000 is a modern closed type cooler designed for cooling 5,000 liters of liquid. It is completed with high-quality French compressors Maneurop or L'Unite Hermetigue (France).

Important! When designing a ventilation system in the room where the cooler is installed, it is necessary to take into account that the outdoor temperature affects the operation of the cooler. This is especially important for open-type devices, since the sunroof is not heat-resistant.

OM-1

The plate-type OM-1 cleaner-cooler is used to clean and quickly reduce the milk temperature.

Did you know? Milk can be used as a cleaning agent. They can wipe mirrors, gilded frames and remove ink stains.

TOM-2A

The tank cooler can serve a herd of 400 cows. The unit is equipped with manual and automatic control devices.

It will be useful for you to read about why there is blood in the milk of a cow.

OOL-10

Plate-type closed-type chiller is designed for cooling liquids in a closed stream. Consists of a steel plate fence and gasket. Used for pre-cooling. Reduces the temperature of the product that enters the tank, up to + 2-10 ° C.

Modern models of coolers are made of high quality materials and can be used on farms, with any amount of milk produced.

Cooling in most of them takes 3 hours and is maintained at a predetermined level for several days. When choosing a tank cooler, also pay attention to the availability of service after installation and the speed of repair work.

Watch the video: Bulk milk cooler (November 2024).