Roller-gear extruder

 

(57) Abstract:

Roller-gear extruder, including the boot device, the working chamber located therein two toothed rollers and the forming device. The boot device contains a conductive working body and the body of electroconductive material on the inner surface of which is conductive shell. Conductive working body and shell connected with a source of electric current of industrial frequency. Forming device is equipped with an electric heating element. The application of the electric contact of the electric current of industrial frequency on the boot device and the heating matrix allows to process not only legkonastraivaemy material, but also other raw materials. 1 Il.

The invention relates to equipment for extruding and is intended for use in confectionery, pasta and food concentrates and other food industries.

Known roller-gear extruder [Meshalkin, A. Technological equipment confectioneries. - M: Light and food industry, 1984, S. 186-188] , including the boot mouth/P> The disadvantage of this roller-gear extruder is the possibility of processing only legkorastvorimyh materials.

The technical result to be obtained from use of the invention is the increased functionality of the roller-gear extruder.

This objective is achieved in that in the roller-gear extruder containing the boot device, a working chamber located therein two toothed rollers, and forming device, the loading device comprises a conductive working body and the body of electroconductive material on the inner surface of which is conductive shell, and a conductive working body and shell connected with a source of electric current of industrial frequency, and the forming device is equipped with an electric heating element.

The drawing shows a roller-gear extruder of the proposed design. The extruder contains a working chamber 1, two toothed roll 2, located in the working chamber 1, the forming device 3 by 4 matrix, provided with a heating element 5 and the loading device 6, comprising a housing 7 of electropo is ASI working body 9.

Roller-gear extruder operates as follows.

Recyclable material is fed into the loading device 6, where it is intensively mixed and subjected to the electric field created in the inner space of the housing 7 with the conductive shell 8 and the conductive working body 9. In the dielectric properties of the processed material can be heated and its viscosity decreases. Next, the processed material is fed into the working chamber 1 and is transported toothed rollers 2 to the forming device 3. Due to back pressure from the forming device 3 recyclable material hardens and turns into a viscous-plastic mass. The forming device 3 is heated with an electrical heating element 5 to a temperature of 80-120^oC. Visco-plastic mass is forced through a heated matrix 4, in the area of contact with the walls forming the channels of the matrix 4 visco-plastic mass is heated and turns into legkonastraivaemy material.

Thus, the application of the electric contact of the electric current of industrial frequency on the boot device, and heating the matrix AA-gear extruder, including the boot device, the working chamber located therein two toothed rollers and the forming device, wherein the boot device contains a conductive working body and the body of electroconductive material on the inner surface of which is conductive shell, and a conductive working body and shell connected with a source of electric current of industrial frequency, and the forming device is equipped with an electric heating element.