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Side spray retort

  • Side spray retort

Features:

Heat up and cool down by the heat exchanger, so the steam and cooling water will not contaminate the product, and no water treatment chemicals are needed. The process water is sprayed onto the product through the water pump and the nozzles distributed at the four corners of each retort tray to achieve the purpose of sterilization. It guarantees the uniformity of the temperature during the heating and cooling stages, and is especially suitable for products packed in soft bags, especially suitable to the heat-sensitive products.

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Working principle

Put the product into the sterilization retort and close the door. The retort door is secured by triple safety interlocking. Throughout the whole process, the door is mechanically locked.

The sterilization process is automatically carried out according to the recipe input to the micro-processing controller PLC.

Keep an appropriate amount of water at the bottom of the retort. If necessary, this part of water can be injected automatically at the beginning of the heating up. For hot-filled products, this part of water can be preheated first in the hot water tank and then injected. During the entire sterilization process, this part of the water is sprayed onto the product by a large flow pump and a four-direction spray nozzles arranged on each product tray in order to achieve the same effect at any tray position on the upper and lower layers, front, back, left and right. So the ideal heating and sterilization quality is achieved. Because the direction of the nozzle is clear, accurate, uniform and thorough hot water diffusion can be obtained in the center of each tray. An ideal system for minimizing the temperature unevenness in the processing tank of a large-scale retort is achieved.

Equip the spiral-tube heat exchanger for the sterilization retort and at the heating and cooling stages, the process water passes through one side, and the steam and cooling water pass through the other side, so that the sterilized product will not directly contact the steam and cooling water to realize aseptic heating and cooling.

Throughout the whole process, the pressure inside the retort is controlled by the program by feeding or discharging compressed air through the automatic valve to the retort. Due to water spray sterilization, the pressure in the retort is not affected by temperature, and the pressure can be set freely according to the packaging of different products, making the equipment more widely applicable (three-piece cans, two-piece cans, flexible packaging bags, glass bottles, plastic packaging etc.).

When the sterilization process is finished, an alarm signal will be issued. At this time, the door can be opened and unloaded. Then prepare to sterilize the next batch of products.

The uniformity of temperature distribution in the retort is +/-0.5℃, and the pressure is controlled at 0.05Bar.

Advantage

●Accurate temperature control, excellent heat distribution 

The four-direction spray nozzles arranged on each tray can reach the same effect at any tray position on the upper and lower layers, front, back, left, right, and achieve the ideal heating and sterilization quality. The temperature control module (D-TOP system) developed by DTS has up to 12 stages of temperature control, and the step or linearity can be selected according to different product and process recipe heating modes, so that the repeatability and stability between batches of products are maximized well, the temperature can be controlled within ±0.5℃.

●Perfect pressure control, suitable for a variety of packaging forms

The pressure control module (D-TOP system) developed by DTS continuously adjusts the pressure throughout the whole process to adapt the internal pressure changes of the product packaging, so that the degree of deformation of the product packaging is minimized, regardless of the rigid container of tin cans, aluminum cans or plastic bottles, plastic boxes or flexible containers can be easily satisfied, and the pressure can be controlled within ±0.05Bar.

●Highly clean product packaging

The heat exchanger is used for indirect heating and cooling, so that the steam and cooling water are not in contact with the process water. The impurities in the steam and cooling water will not be brought to the sterilization retort, which avoids the secondary pollution of the product and does not require water treatment chemicals (No need to add chlorine), and the service life of the heat exchanger is also greatly extended.

●Compliant with FDA/USDA certificate

DTS has experienced thermal verification experts and is a member of IFTPS in the United States. It fully cooperates with FDA-approved third-party thermal verification agencies. The experience of many North American customers has made DTS familiar with FDA/USDA regulatory requirements and cutting-edge sterilization technology.

●Energy saving and environmental protection

A small amount of process water is quickly circulated to quickly reach the predetermined sterilization temperature.

Low noise, create a quiet and comfortable working environment.

Unlike pure steam sterilization, there is no need to vent before heating, which greatly saves steam loss and saves about 30% of steam.

Parameters

C-10-2/3

C-12-3/4/5

C-14-3/4/5




Packing type

    Plastic tray

    Flexible packaging pouch


Applicable fields

    Dairy products packed at flexible packing

    Vegetables and fruits (mushrooms, vegetables, beans) packed at flexible bags

    Meat, poultry in flexible packaging bags

    Fish and seafood in flexible packaging bags

    Baby food in flexible packaging bags

    Ready-to-eat meals in flexible packaging pouches

    Pet food packed in flexible pouches

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