Bread extrusion

Extrusion bread production line equipment

Equipment of the production line for extrusion bread

https://r-t-group.com/ovens-extruders/extrusion-bread

The line consist of:

mixer;
sifter;
loading auger;
single-screw extrusion plant complete with magnetic traps of foreign metal objects in raw materials;
matrix for bread forming;
cutting device.

Process description:

The raw material for the production is flour.

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DESCRIPTION OF THE PRODUCTION PROCESS

method is based on thermomechanical treatment of moistened raw materials at high pressure (up to 200 kg/cm2) and temperature (up to 200 C);
raw materials from the storage hopper with screw feeder is fed into the extrusion zone;
piston pump carries out the dosed water supply to the extrusion zone;
during the passage of raw materials and water through the zone of extrusion mixing of the components is carried out, as well as their kneading and cooking;
rotating screw moves the extrudate through the working area of the extruder, pumping up the pressure inside the chamber;
extrusion process is carried out at a high temperature, which rises due to the friction of the extrudate on the surface of the screw chamber;
at the exit from the extrusion zone, a matrix with holes for your specific product is installed;
extrudate passes through the holes of the matrix, taking a certain shape;
when the extrudate passes through the matrix, the product “explodes” – a sharp expansion of the product due to the pressure drop in the extruder housing and in the environment. In this case, the moisture contained instantly evaporates, resulting in a porous structure of the product;
cutting device cuts a continuous ribbon of extrudate to the product of the required length.

DESCRIPTION OF THE EQUIPMENT FOR EXTRUSION BREAD PRODUCTION

Mixer

Belt type mixer produces batch mixing of bulk food ingredients in order to prepare dry multicomponent mixtures of uniform polydisperse composition, suitable for further use in the food process.

 

Technical parameters:
performance is from 250 kg / hour;
working volume 250 liters;
installed power 2.5 kW;
supply voltage 380 V;
overall dimensions from1500×1600×1020 mm;
unloading height is up to 2.5 m;
weight 350 kg.

Sifter

Centrifugal sifter sifts bulk food products, removing impurities from them. The principle of operation of the sifter is based on the continuous centrifugal squeezing of bulk materials through cylindrical sieves of a predetermined flow section.

 

Technical parameters:
performance is up to 3.5 t / hour;
total power 1.5 kW;
supply voltage 380 V;
overall dimensions 540×980×430 mm;
weight 45 kg.

Feeding screw

Feeding screw loads the raw material into the extruder. From the hopper, located at a height of 0.5 – 0.7 m, screw transports raw materials to the height of filling products into the extruder.

performance of screw feeding is up to 500 kg / hour;
installed power is up to 1.5 kW.

 

Extrusion unit

The extruder performs thermomechanical processing of the raw material, coming after the preparation stage. Design of the working bodies will allow you to get any form of the final product.

This is achieved by:

big length of the working area, which determines the quality of the welding of the extrudate and, as a result, high taste properties of the product. After passing the working area, the products do not require additional drying / roasting in thermal installations.
automatic control of parameters of the equipment, ensuring a stable output of the product when the quality of raw materials fluctuates.

 

Adjustable parameters include:
working area pressures;
extrusion temperature;
raw material humidity;
quantity of raw material.

Technical parameters:

performance is up to 250 kg / hour;
frequency of the auger rotation 10 – 300 rpm;
operating temperature control range 40 … 300 °C;
screw diameter 60 mm;
installed power, up to 50 kW;
supply voltage 380 V, 50 Hz;
overall dimensions 2500×850×2000 mm.

Cutting device

Сutting device is designed for rolling and cutting of continuous extrudate tape. During passage of the tape on the device fans are cool and dry tape extrudate.

 

Technical parameters:
width of the working area up to 250 mm;
overall dimensions 3000×900×1050 mm;
installed power, up to 1.5 kW;
supply voltage 380 V;
weight, not more 400 kg.

Process control unit

The proposed control system provides fully automatic control of the extruder. It is designed for extruders, used in the production of food products, including breakfast cereals, pet food, food additives.

 

Advantages

In automatic mode, all process parameters are controlled and regulated – rotation of the screws and cutting unit, temperature of the working bodies and matrix, number of dry and liquid components, supplied in their stable proportion for each of the selected recipes. This ensures the reproducibility and quality of the product at one touch of a button. The specified optimal parameters from the recipe database for the start-up and shutdown phases allow the extruder to enter the production mode faster and more reliably. At the same time, energy costs and waste are minimized.

Recipes

The recipe in this case has a broader meaning than the recipe of the product. In addition to the composition (proportions and number of initial components) and the method (temperature and cooking time), in this case, additional technological parameters of the extruder units are used, which affect the quality of the product. Recipe database – is stored in non-volatile memory data on these parameters for each of the products. All data in the recipe database is available for change, you can also add new recipes.

Capacity of the extrusion line up to 220 kg / hour* in the production of extrusion bread.

* depending on the raw material, used technology, quality of the product.

EXTRUDER FOR EXTRUSION BREAD PRODUCTION LINE - VIDEO

 

 

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