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preconditioner for snacks food extruder in producing pet foods

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preconditioner for snacks food extruder in producing pet foods



Brief introduction of preconditioners

Some processes require preliminary treatment of raw materials before going through the twin-screw extruder. The preconditioner is used mainly for food products : flakes or pellets for cereals and snacks. It is also used for ingredients used in pet food and fish feed.

The preconditioner heats, hydrates and mixes the dry raw materials before extrusion and automatically doses the pre-treated product into the extruder. It optimizes the capacities and the performance of the extruder and enhances final product features by introduction of various liquid or dry ingredients in a homogenous mix.

Differential Diameter Conditioner is designed to provide proper steam conditioning and hydration of materials by having adjustable retention time. Retention Time is adjusted by changing the rotation speed of the shaft in the bigger cylinder with an inverter.·Independent drive on each shaft, which improves power consumption, noise, and also allows the machine to be completely emptied by slowing and reversing the paddles.The misting steam and water injectors further improve the conditioner performance by creating a homogenous mix without lumps.·Beaters are adjustable to ensure best mixing conditions.

Preconditioners are custom-designed by experts to optimize efficiency and enhance the quality of finished extruded products. Variable output speeds from 50 to 20 000kg/h for volumes of 25L to 3000L

There are complete range of preconditioners adapted to the specifications of the lines or the products being processed.



Structural features of preconditioner:

Large inspection windows for ease of maintenance.

Driven by geared motor.Large hinged lids for easy cleaning and maintenance.Constructed of type SUS304 steel (inner surface area that touch with raw materials).Injections ports for water, liquid, oil and steam.Adjustment of various injection points, making it possible to add different liquids: water, steam, oils, etc.There are water and oil inlets with ball valves assembled on the top of conditioner and steam inlets with ball valves assembled on the bottom. The steam injecting systems include a flow meter to show the volume of injection.Liquid and slurry addition ports can be created to customer requirements.Equipped with a steam flow meter for steam injecting rate checking and data record.

The DDC pre-conditioner has reverse rotation and design paddles. Housing, paddles and shaft are all made by stainless steel for long life work. The design of DDC to keep material with longer retention time can up to 120 seconds. It can properly increase condition ability to reduce energy consumption and increase feed quality.



Functions of preconditioner in twin-screw extrusion process

Depending on the features required for the final product, the pre-conditioner carries out the following functions:

1. Heating of raw materials at a controlled temperature.

2. Pre-humidification of flours before their introduction into the extruder.

3. Start of starch pre-gelatinization. Ensuring optimal conversion of starches.


Technical features of a preconditioner

Advanced design with Individually driven shafts.

Optimized control for better retention time and mixing.

Hygienic design to prevent microbial growth.

Advantages of preconditioners

The preconditioner carries out a continuous mix upstream, thus optimizing the processing of the product in the extruder.

The mix is done with a counter-rotating screws with adjustable rotor blades, thus producing a more homogenous blend.

Variable blade profiles and speed to adjust for optimal residence time.

Easy to use, ergonomic and safe for operators, with secured equipment upstream and downstream.

Destroying certain enzymes and micro-organisms to ensure food safety and taste features.

Minimizing wear and production breakdowns since preconditioned products are perfectly homogenous and ensure consistent recipes.

Advanced design with Individually driven shafts.

Optimized control for better retention time and mixing.



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With all the Sunrising people's efforts, our good quality and after-sale service have gained well-known customers' approval at home and abroad. We have taken hold of 85% users of Chinese snacks market. Our products have also been exported to
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