Mineral slag micro-powder screening device for blast furnace water slag grinding and using method of mineral slag micro-powder screening device

Abstract

The invention discloses a superfine slag powder screening device for blast furnace granulated slag grinding and a use method, relates to the technical field of granulated slag grinding, and aims to solve the problem of granulated slag filtering and screening. According to the slag micro-powder screening device for blast furnace water slag grinding and the using method, scraping plates can scrape the inner wall of the inner cavity of the furnace body during rotation, materials in the inner cavity of the furnace body can be fully stirred, the water slag cannot be easily adsorbed into the inner wall of the inner cavity of the furnace body, after a second rotating shaft rotates, rotating blades can preliminarily smash the water slag, and the slag micro-powder screening effect is improved. The screening effect in the later period can be better, screened powder can be better refined, the grain slag can be subjected to double filtration through the first filter and the second filter, the screening effect is better, a microwave rod effectively separates some organic matter components of treating fluid from the grain slag under the action of an electromagnetic field, the original compound state of the grain slag can be kept, and the screening effect is better. And the shielding plate can effectively prevent the microwave energy from interfering with other devices.

Description

technical field [0001] The invention relates to the technical field of water slag grinding, in particular to a slag fine powder screening device for blast furnace water slag grinding and a use method thereof. Background technique [0002] Water slag is used as a building material for the production of cement and concrete. Due to its potential hydraulic gelling properties, water slag can be used as a high-quality cement raw material under the action of cement clinker, lime, gypsum and other activators, and can be made into: slag silicon Salt cement, gypsum slag cement, lime slag cement, slag brick, slag concrete, etc., can also be used as a raw material for the production of environmentally friendly cement bricks. The following problems often occur when filtering the existing blast furnace slag: [0003] 1. In the process of water slag transportation, there is no special device to solve the problem of water slag accumulation in the container. Long-term accumulation will caus...

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Problems solved by technology

[0003] 1. In the process of water slag transportation, there is no special device to solve the problem of water slag accumulation in the container. Long-term accumulation will cause water slag to fail to enter the screening device smoothly

[0004] 2. The existing screening device only has a single sieve plate to screen out, which cannot make the slag screened more finely. At the same time, the special organic components in the slag cannot be separated frequently after screening, and the slag cannot be refined more finely. Inaccurate extraction will also separate harmful substances in water slag, which is not conducive to energy saving and environmental protection

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