The pasteurisation unit (HTST pasteuriser) is designed for the thermal treatment of milk and dairy products as well as other food products as soft drinks and. For more than 30 years REDA S.p.A. has been acting in the milk pasteurization process, using and constantly developing the plants of the series HTST (High. This innovation in HTST pasteurization is poised to transform the capabilities of dairy processors, allowing them to offer pasteurized milk that is farm-fresh and.
Magnetic flow meters shown on the right can be used to measure the flow rate. Place a hose in the balance tank and flush the plant thoroughly with water until the discharge from outlet becomes clear. The product arrives to a balance tank BTD and is pumped to a plate heat exchanger.
DT Lesson WORKING OF HTST PASTEURIZER
The pump, then controls the flow rate of product through the system and its holding time in the holding tube. Alarm system with optical and acoustical signals for temperature and pressure differences Security switch-over valve, one-seat version, for alarm cases, leading the product without pasteurization back to the receiver tank. It monitors, controls and records the position of the flow diversion device FDD and supplies power to the FDD during forward flow.
All water remaining in the plant must be drained. The milk is gently heated indirectly by the heating system using hot water.
Basic Component Equipment of HTST Pasteurizer
Another magnetic flow meter based system with an AC variable frequency motor control drive on a centrifugal pump is also possible in lieu of a htsg displacement metering pump on a HTST pasteurizer. No computer program can be written completely error free in large systems; as complexity increases, so too do errors.
The heat exchanger plates and frame are made of stainless steel. To kill bacteria including pathogens. Turn off the air supply and the main electric switch at the panel. The panel includes a temperature regulator. When the last portion of water leaves the balance tank, turn the 3-way valve at the finished milk outlet so that the flow is diverted to lasteurizer floor.
With operator control, changes can be made to the program which might affect CCP’s; the system is not easily sealed. This FDD can be cleaned in place and is more suited for automation.
When milk passes through the magnetic field, it causes a voltage to be induced, and the generated signal is directly proportional to velocity.
Free circulation from outlet to inlet is required and the speed of the homogenizer must be greater than the rate of flow of the timing pump. The overflow level must always be below the level of lowest milk passage in regenerator. The indicating thermometer is considered the most accurate temperature measurement. Once the chilling temperature is reached, the plant will set itself to forward flow.
CIP System (Clean In Place) for HTST pasteurizers
Tube section for sec pasteurization temperature holding time, at min. Paper o video recorder. This gives rise to a need for specific regulations or computer controlled CCP’s of public health significance: Ice-water connection if required: Since the magnetic flow meter continuously senses flow rate, it will signal the electronic controller if the actual flow exceeds the set flow rate for any reason.
It also must be interwired so it only operates when FDD is fully forward or fully diverted, and must be “fail-safe”. It must be located greater than 12 inches above the highest point of raw product in system.
Remove undesirable odours and flavours 4. All recording instruments, thermometers etc. Stop the milk and hot water pumps. The process destroys pathogenic microorganisms by heating the product to a moderately high temperature for a brief period. If required, the unit must be provided with glycol water for cooling and with hot water or industrial steam at 3 bar.
The filter cloth or filter bag must be changed at regular intervals. Quiz 24 Lesson The pasteurizer should be inspected every day for any leakage and for ensuring cleanliness. It ensures that nothing downstream is creating suction on the pasteurized side.
At the pasteurized product discharge is a vacuum breaker which breaks to atmospheric pressure. Ensure availability of sufficient water in the storage tank approximately, equal to the capacity of the plant. If the heat exchanger has a regeneration stage, the treated product is used to preheat the feed material, losing heat in the process, this, reducing the energy required to reach the pasteurising temperature and in reducing the cooling required.
You are currently using guest access Log in. Chart recorder, multi-channel, with memory card for data storage.
Plate pasteurizer with cooling of the heated milk by water in counter flow principle ice water after cooling required. Plate pasteurizer with cooling of the heated milk by cold milk in pasteuirzer flow principle energy saving option.
Start flow of the milk to the float controlled balance tank by starting milk pump.