Puffing device for feed processing

Abstract

The invention belongs to the technical field of feed processing, and particularly relates to a puffing device for feed processing. In order to solve the problems that a traditional puffing device forfeed processing is generally simple in structural design, most of feed is not preheated and is directly conducted puffing, and consequently the puffing effect is not good, the puffing device is provided. The puffing device comprises a puffing main box, a puffing cylinder is fixedly installed on one side of the bottom end of the puffing main box, and the inner wall of the puffing cylinder is connected with a spiral extrusion rod through a bearing. Spiral sheets are arranged on the outer wall of the spiral extrusion rod. By arranging the spiral extrusion rod with the screw pitches between the spiral sheets reduced in sequence, raw materials can be conveniently conveyed and rubbed, and the internal temperature and pressure of the extrusion compression end are sharply increased by matching with the effects of the heating wire and the heat exchange roller, so that the feed is quickly puffed. Through the strip rods and the friction plates arranged on the spiral sheets, the extrusion, friction and shearing effects of the spiral sheets on feed raw materials can be improved.

Description

technical field [0001] The invention relates to the technical field of feed processing, in particular to an extruding device for feed processing. Background technique [0002] Feed is the general term for the food of animals raised by all people. In a narrower sense, general feed mainly refers to the food of animals raised in agriculture or pasture. The feed includes soybean, soybean meal, corn, fish meal, amino acid, miscellaneous meal, whey powder, oil, meat and bone meal, grains, feed additives and more than ten varieties of feed materials. The research and development of premixed feed involves animal nutrition, which is a real high-tech industry; the development of the feed industry provides almost most of the indispensable sources of animal protein for human survival, and its social contribution and industry value are quite prominent. [0003] In the process of feed processing, it is often necessary to puff the feed. The puffing processing technology has incomparable a...

AI Technical Summary

Problems solved by technology

Extruded aquatic feed is a high-quality, environmentally friendly feed with low pollution, low waste, high efficiency, and high conversion rate, which will effectively promote the sustainable and rapid development of the aquaculture industry; the general structure design of traditional feed processing extruders is relatively simple, and most of them have a The auxiliary screw and screw sleeve, after the raw material enters the puffing chamber, the material is squeezed, rubbed, sheared, etc. between the screw and the screw sleeve, and its internal pressure and temperature continue to rise, thereby realizing the puffing treatment, but the feed Without preheating, the temperature of extrusion and friction is often not sufficient, which affects the puffing effect and has certain limitations.

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