59results about How to "Improve mineralization efficiency" patented technology

The invention relates to the field of building materials, and particularly discloses a concrete self-repairing material, and a preparation method thereof and concrete with the concrete self-repairing material. The concrete self-repairing material comprises a porous matrix inner core, the porous matrix inner core forms a porous structure inorganic particle, the porous structure inorganic particle is provided with a plurality of mutually communicated loading pore channels, and microorganisms are loaded in the loading pore channels; and the anti-loss coating shell is arranged on the surface of the porous matrix inner core so as to isolate the microorganisms from the external environment. According to the concrete material, inorganic particles of a porous structure serve as an inner core, the surface of the inner core is coated with a shell, mineral ions in seawater form minerals under the action of microorganisms, self-repairing of the concrete material is completed, meanwhile, the core-shell structure is adopted for preventing corrosion substances from invading, and the engineering durability and the service life of concrete preparation are improved.

Disclosed is a flotation device and method for coal slime. The flotation device comprises a flotation column body (1) performing a main separation procedure, a cyclone separation body (3) and a pipe flow mineralizing body (2) for performing a primary separation procedure, wherein the cyclone separation body (3), the pipe flow mineralizing body (2) and the flotation column body (1) are sequentially connected. The cyclone separation body (3) and the pipe flow mineralizing body (2) are used for primarily separating the coal slime, and the flotation column body (1) performs the secondary separation, so that the problem that only the cyclone flotation body (3) is used for separation of the coal slime is solved, components of the coal slime can be subjected to classified flotation and flotation accuracy of the coal slime is improved.

The invention relates to a double-tailing discharging gravity-floating combined separation method and a device thereof, and belongs to a double-tailing discharging gravity-floating combined separation method aiming at slime and a device thereof. The aim of the invention is to solve the technical problems existing in the prior flotation machine that the separation effect of ultrafine grains is lowand the upper limit of the column flotation is difficult to be effectively related with the lower limit of the heavy medium separation. The method comprises three steps of crude ore flotation and rough separation and graded tailing discharging, gravity scavenging tailing discharging and gravity separation finished ore reflotation. The double-tailing discharging gravity-floating combined separation machine comprises a jet flow flotation column, a first tailing discharging graded device and a secondary tailing discharging graded device; the first tailing discharging graded device is arranged below the jet flow flotation column, a cyclical middling underflow opening of the first tailing discharging graded device is connected with the secondary tailing discharging graded device, and a centralore feeding pipe of the secondary tailing discharging graded device is connected with the jet flow flotation column. The method and the device have multiple effects of coarse slime separation and highly selective floatation of fine coal and ultrafine coal, thereby improving the efficiency of the gravity-floating combined separation.