Airflow buffer

Abstract

An airflow buffer used in conjunction with a simple airflow classifier for powder in the airflow classification process of dry processing of quartz sand to classify products of 120 mesh or above. The airflow buffer is a cylindrical shell, the upper end is connected with a conical head, the top is the upper outlet, the lower end is connected with a conical collecting hopper, and the bottom of the cone is the lower outlet. Inside the cylinder, a conical ring is set at the joint between the top of the cylinder and the cone, and an annular cone bucket is arranged at the middle and upper part. Chamber. The mixture of 120 mesh and above enters the upper impeller with the airflow, and is evenly sprinkled around. Under the action of the airflow, most of the fine particles above 120 mesh are discharged from the upper outlet with the upward airflow, and the particles of 120 mesh and a small amount of above 120 mesh are discharged. Sprinkle, fall and collect on the grading collar after hitting the wall of the container, and be classified again by the secondary air, and the 120-mesh particles are discharged from the lower outlet.

Description

technical field [0001] The invention relates to a device for classifying fine particles of quartz sand, which is matched with a simple airflow classifier for powder in the dry production of quartz sand, specifically an airflow buffer. Background technique [0002] In the large-scale continuous production of dry processing of quartz sand, it is necessary to separate the products above 120 mesh from the crushed mixed material from the system, and to classify the products of 120 mesh and above again. Due to the small particle size of products above 120 mesh, airflow classification is usually used in the production process. The principle of airflow classification is to separate products with different particle sizes through the pumping action of a certain intensity of airflow. At present, the airflow classification equipment commonly used in the dry processing of quartz sand is a simple airflow classifier for powder materials. To undertake the grading treatment of the mixed mat...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the technical conflict in the airflow classification process of dry processing of quartz sand, which must be able to handle a large amount of mixed materials and achieve high classification accuracy (especially fine particle classification accuracy), the invention provides a simple airflow classification method for powder materials. The machine is equipped with an airflow buffer

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