A screw extruder capable of automatic reclaiming

Abstract

The invention relates to a screw extruder capable of automatically taking, and particularly relates to a screw extruder capable of automatically taking in the condition that normal operation of the extruder is not influenced. The screw extruder comprises a sampling mechanism and a power accumulator, wherein the sampling mechanism and the power accumulator are arranged in a sampling room, and the power accumulator is used for heating and pressurizing the sampling mechanism. Compared with the prior art, the screw extruder capable of automatically taking has the following advantages that the function of direct sampling without shutdown can be realized, normal operation of the extruder cannot be influenced during sampling, a screw cannot be damaged, a buffer solution is added to a guide tube in an air chamber, so that the smoothness and stability of a sampling process can be guaranteed, and the screw extruder capable of automatically taking is favorable for improving the research and development of polymer in the extruder.

Description

technical field [0001] The invention relates to a screw extruder capable of automatically taking materials. Background technique [0002] As the main equipment for polymer processing, the screw extruder has been more and more widely used in the polymer processing industry, and it will also be used more in other industries. Whether in theoretical research or in the actual production process, the state and form of existence of materials in different stages of the extruder play a key role. During the processing of polymer in the screw extruder, it is mainly divided into conveying section, melting section and homogenizing extrusion section. In the melting section and homogenizing extrusion section, it not only involves how the solid material is converted into a viscous fluid state, but also with The mixing in the extrusion process is closely related, and to study the melting stage of the screw extrusion process, the first and most basic thing is to find out the real situation o...

AI Technical Summary

Problems solved by technology

During the processing of polymer in the screw extruder, it is mainly divided into conveying section, melting section and homogenizing extrusion section. In the melting section and homogenizing extrusion section, it not only involves how the solid material is converted into a viscous fluid state, but also with The mixing in the extrusion process is closely related, and to study the melting stage of the screw extrusion process, the first and most basic thing is to figure out the real situation of material melting in the extrusion process, but it is difficult to research or produce at present. Realize real-time extraction of materials during extrusion

At present, there are three kinds of devices used to detect the material state in the screw extrusion process: the method of stopping the machine and cooling the barrel suddenly, and then pulling out the screw to take a sample; using the device that can be divided into barrels, and starting the machine directly after stopping barrel for sampling research; use a visual screw extruder with a glass window, but only for observation of the material, not for sampling research

In general, none of these three devices and methods can perform direct sampling without affecting the extrusion process.

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