1results about How to "Increase discharge gap" patented technology

This invention relates to the field of wheat screening and feeding devices, specifically a multi-stage wheat screening and feeding device. It includes a temporary storage bin slidably disposed at the bottom of a feeding chamber, a fine screening cylinder fixedly installed at the top of the feeding chamber, and an air-separation impurity removal pipe assembly installed between the lower part of the fine screening cylinder and the top of the feeding chamber. It also includes a coarse screen fixedly installed at the top of the fine screening cylinder. A support is installed inside the fine screening cylinder, and a fine screening mechanism is movably installed between the upper part of the support and the lower end of the coarse screen. A multi-screening position switching mechanism is movably installed at the lower part of the support and cooperates with the fine screening mechanism. This multi-stage wheat screening and feeding device forms an annular material curtain through the guiding cone sleeve, and, in conjunction with the air-separation impurity removal pipe assembly and dust suction hood, achieves air-separation fine screening and impurity removal. This fundamentally avoids problems such as screen clogging, screen sticking, wear and deformation, and holes, eliminating the need for frequent shutdowns for manual screen cleaning and replacement, effectively improving the continuous operation capability of the equipment and reducing equipment maintenance costs.