Rail type sector ash scrapper used for cylindrical horizontal electro-precipitator

Abstract

The invention discloses a rail type sector ash scrapper used for cylindrical horizontal electro-precipitator, which includes an arc steel rail fixed on a ring beam; the two ends of a sector bracket are respectively provided with a guide roller and a movable roller; the guide roller and the movable roller are connected with a steel rail in a rolling way; the fixed steel plates stretched from the two ends of the sector bracket are fixedly provided with an electric field ash scraper; the gear ring of the sector bracket is also provided with a ring beam ash scraper; the sector bracket moves on the steel rail through the rollers to drive the ash scraper to movably scrap ash on the arc steel rail. The rail type sector ash scrapper used for cylindrical horizontal electro-precipitator changes the top end hung support of A-shape bracket on the traditional internal sidewalk into the arc rail support on the ring beam of a shell, which guarantees the accurate, stable and reliable engagement of the sector bracket, omits the top end hung support bearing and grease lubricating system of the A-shape bracket, and saves investment and maintenance cost.

Description

technical field [0001] The invention relates to a dust-scraping device, in particular to a track-type fan-shaped dust-scraping device for a cylindrical horizontal electrostatic precipitator. Background technique [0002] Cylindrical electrostatic precipitators with different diameters and specifications are commonly used in various flue gas purification and recovery systems such as converters, blast furnaces, electric furnaces and submerged arc furnaces. The traditional A-shaped fan-shaped dust scraping device is around the apex of the A-shaped cylinder The center point of the circular section of the electrostatic precipitator swings back and forth, and the A-shaped apex is fixed on the platform inside the ring beam through the shaft and bearings, so that the inner platform must pass through the central axis of the precipitator, so when the cylindrical shape When the diameter of the electrostatic precipitator becomes smaller, there will be insufficient space and the discharg...

AI Technical Summary

Problems solved by technology

[0002] Cylindrical electrostatic precipitators with different diameters and specifications are commonly used in various flue gas purification and recovery systems such as converters, blast furnaces, electric furnaces and submerged arc furnaces. The traditional A-shaped fan-shaped dust scraping device is around the apex of the A-shaped cylinder The center point of the circular section of the electrostatic precipitator swings back and forth, and the A-shaped apex is fixed on the platform inside the ring beam through the shaft and bearings, so that the inner platform must pass through the central axis of the precipitator, so when the cylindrical shape When the diameter of the electrostatic precipitator becomes smaller, there will be insufficient space and the discharge phenomenon will occur, causing the electrostatic precipitator to fail to work, so it cannot meet the use of cylindrical electrostatic precipitators with a diameter of less than 6 meters; due to the traditional A-shaped fan-shaped scraper The fulcrum of the ash device, that is, the A-shaped apex is fixed on the platform inside the ring beam, and the temperature change in the cylindrical electrostatic precipitator often causes the deformation of the platform, and the platform is easily deformed by force, so this apex suspension type The structure is not firm and unstable, so tooth gnawing and wear often occur; the fulcrum of the traditional A-shaped fan-shaped dust-scraping device, that is, the A-shaped apex, is supported by a pair of sliding bearings installed on the internal platform, which requires special drying. The oil lubrication system supplies oil regularly, so the system maintenance is difficult

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