Screening device and blast furnace granulated slag powder production line

By designing a multi-stage screening zone and a rotating module-driven screening and feeding device, the problem of low efficiency in slag particle classification and screening in existing technologies has been solved, achieving efficient multi-stage screening and stable screening results.

CN119771751BActive Publication Date: 2026-06-19TONGLING STONE GOLD CIRCULATION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TONGLING STONE GOLD CIRCULATION TECH CO LTD
Filing Date
2025-02-20
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

In existing technologies, a single drum screen or rotary screen cannot achieve the classification and screening of slag particles, requiring repeated screening, which results in low efficiency.

Method used

A screening and feeding device is designed, including a screening cylinder with multiple screening sections on the cylinder wall. The screen aperture of each screening section gradually increases, and the screening cylinder is driven to rotate by a rotating module to achieve multi-stage screening. The transport basket slides and fits against the inner wall of the screening cylinder to restrict slag particles. The translation module realizes alternating feeding and screening, and the quantitative conveying module ensures uniform conveying.

Benefits of technology

It achieves four-stage screening of slag particles, improves screening efficiency, reduces repetitive operations, has high stability, requires no additional drive equipment, and is easy to adjust.

✦ Generated by Eureka AI based on patent content.

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    Figure CN119771751B_ABST
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Abstract

This invention discloses a screening and feeding device and a blast furnace granulated slag powder production line, relating to the field of slag powder production technology. The screening and feeding device includes a screening cylinder, the cylinder wall of which is circumferentially divided into a first screening section, a second screening section, a third screening section, and a fourth screening section. Screen holes are uniformly opened on the cylinder wall corresponding to the first, second, and third screening sections, and a discharge chute is opened on the cylinder wall corresponding to the fourth screening section. The aperture of the screen holes in the first, second, and third screening sections gradually increases. It also includes a first transport basket for conveying slag powder into the screening cylinder. The first transport basket is connected to a translation module that drives it to move towards or away from the screening cylinder. The bottom of the first transport basket is designed with an arc-shaped structure for sliding contact with the inner wall of the screening cylinder. This invention only requires one screening cylinder to achieve four-stage screening, and only requires one feeding process.
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