Compositionem et technology de pisces feed extruder .
Et applicationem de feed extrusionem machina technology in feed industria coepit in 1950s in Civitatibus Foederatis Americae, maxime usus est processus pet cibum, preterailment et productionem de Urea pascere ad supplementum ruminant et productionem ad 1980s,Pasce Extrusionem MachinaEt facti sunt pelagus machina pro feed Development . In processus speciali animalis feed, aquatilium pascuntur, feed resources progressionem et alias facies {I}}
Pasce Extruder est machina composito ex tradenda fabrica, pascens fabrica, extrusionem partes, secans et alia auxilia cogitationes . extra et geminus in unum ex {}} et electus et minus est in simplici operationem et minus in unum exigere et minus}} Investment, quae late in domesticis feed industria ad praesens {{III}}Geminae stupra extruderhabet fortis adaptability ad materiae, sed apparatu obsideri est magna . ad praesens, id est late in productione pet feed et specialis aquatilium pascuntur {I}}
In terms of processing methods, fish feed production line technology can be divided into dry extrusion and wet extrusion. Dry extrusion refers to the extrusion method which only relies on the friction between the material and the outer cylinder wall of the extruder and the screw to generate heat without external heating or adding water. This method originated from the extrusion of full fat soybeans, relatively simple operation, low equipment cost, but the extrusion temperature is not easy to control, nutrient damage, with the development of extrusion technology, power consumption, is a kind of extruder in the feed industry application more and more widely: after processing a wide variety of materials, performance difference is very big. Because most materials (such as various materials, aquatic feed and pet feed) do not contain as much oil as full-fat soybeans, which lubricate the extrusion process, they have low oil content and poor fluidity. In order to keep the extrusion process smooth, water (water or steam) is often added during the extrusion process, along with external heat, which is called wet extrusion. Due to the high water content of wet extrusion, the temperature is lower than dry extrusion, which is easier to control and maintain the nutrient content of the material.
