Abstract: Disclosed is a method for evaluating thicknesses of cobalt-rich crusts on seamounts, which comprises following steps: dividing a study area of cobalt-rich crusts into geological grid units, assigning crust thickness values to geological grid units; obtaining the crust thicknesses of the geological sampling stations in a preset influence range in the adjacent areas based on geological sampling station information; estimating the crust thicknesses in a certain distance range of the stations by a “distance-slope” spatial interpolation method, and through a spatial similarity of a crusts spatial distribution caused by a relationship between the distance and the slope, assigning values to grid units outside adjacent areas and within an influence range of the spatial similarity relationship; assigning values to the geological grid units that failed to obtain crust thickness value through an expected assignment method, and obtaining the crust thicknesses of the study areas.

Abstract: An automatic cleaning device for a ring hammer crusher, and a ring hammer crusher having the automatic cleaning device are provided. The automatic cleaning device includes an automatic cleaning assembly at a back side of a feeding opening of a crushing chamber of the ring hammer crusher; the automatic cleaning assembly includes a material meeting disk and a cleaning blocking rod; the material meeting disk is connected to a drive member and is driven by the drive member to rotate, and the cleaning blocking rod is fixed to the crushing chamber and is cooperated with a material meeting surface of the material meeting disk for cleaning. The ring hammer crusher having the automatic cleaning device has a simple structure and convenient operation, thus improving cleaning effect.

Abstract: A wind permeation-type dryer capable of scraping material has a cavity and includes a heating assembly. The experiment cavity and a dropping cavity; the experiment cavity is located above the dropping cavity. The heating assembly communicates with the experiment cavity or the dropping cavity. The cavity is provided with a sieve tray assembly therein for placing materials. The assembly is provided with a rotating scraping assembly provided thereabove for scraping and flattening the materials on the sieve tray assembly. The rotating scraping assembly includes a rotating drive piece, a scraping sheet, and a rotating rod, wherein one end of the rotating rod is connected to the rotating drive piece and the other end of the rotating rod is connected to the scraping sheet adjacent to the sieve tray assembly. The rotating drive piece drives the rotating rod to rotate so as to drive the scraping sheet to rotate together therewith, such that the materials contacting the scraping sheet is scraped and flattened.

Abstract: An automatic cleaning device for a ring hammer crusher, and a ring hammer crusher having the automatic cleaning device are provided. The automatic cleaning device includes an automatic cleaning assembly at a back side of a feeding opening of a crushing chamber of the ring hammer crusher; the automatic cleaning assembly includes a material meeting disk and a cleaning blocking rod; the material meeting disk is connected to a drive member and is driven by the drive member to rotate, and the cleaning blocking rod is fixed to the crushing chamber and is cooperated with a material meeting surface of the material meeting disk for cleaning. The ring hammer crusher having the automatic cleaning device has a simple structure and convenient operation, thus improving cleaning effect.

Abstract: A wind permeation-type dryer capable of scraping material has a cavity and includes a heating assembly. The experiment cavity and a dropping cavity; the experiment cavity is located above the dropping cavity. The heating assembly communicates with the experiment cavity or the dropping cavity. The cavity is provided with a sieve tray assembly therein for placing materials. The assembly is provided with a rotating scraping assembly provided thereabove for scraping and flattening the materials on the sieve tray assembly. The rotating scraping assembly includes a rotating drive piece, a scraping sheet, and a rotating rod, wherein one end of the rotating rod is connected to the rotating drive piece and the other end of the rotating rod is connected to the scraping sheet adjacent to the sieve tray assembly. The rotating drive piece drives the rotating rod to rotate so as to drive the scraping sheet to rotate together therewith, such that the materials contacting the scraping sheet is scraped and flattened.