40results about How to "Easy to calcine" patented technology

The invention discloses an Mg-doped Li-rich anode material and a preparation method for the same, wherein the molecular formula of the Mg-doped Li-rich anode material is Li(Li0.2Ni0.13Co0.13Mn0.54)0.98Mg0.02O2. The preparation method comprises the following steps of: dissolving lithium acetate, cobaltous acetate, nickel acetate, manganese acetate and magnesium nitrate in deionized water in a molar ratio of Li to Co to Ni to Mn to Mg being 1.196: 0.1274: 0.1274: 0.5292: 0.02 to obtain solution 1; adding citric acid in deionized water to obtain solution 2 in a ratio of the molar weight of the citric acid to the total molar weight of Ni, Co, Mn and Mg being 1: 1; and adding the solution 2 in the solution 1, adjusting the pH value to be 9, stirring at 80 DEG C until a purple gel is formed, sequentially performing drying, ball-milling, segmented calcination and grinding, and thus obtaining the Mg-doped Li-rich anode material which is high in specific discharge capacity, good in circulation performance, and excellent in rate performance.

The invention discloses a limestone powder calcining furnace which comprises a furnace body, wherein the left side and the middle of the upper surface of the furnace body are connected with a feedinghopper and a motor B respectively; a motor A is arranged below the furnace body; output shafts of the motor A and the motor B are respectively connected with a stirring shaft A and a stirring shaft B;stirring blades are connected to the stirring shaft A and the stirring shaft B; high-temperature belts are connected to the middle of the inner side wall of the furnace body; the upper and lower parts of the inner side wall of the furnace body are connected with guide plates; the lower surfaces of the guide plates and the high-temperature belts are connected with material blowing devices; the lower surfaces of the stirring blades are connected with poking devices; the outer side of the stirring shaft A is connected with a discharge tower through a bearing; the outer side of the lower part ofthe furnace body is sleeved by a cooling sleeve; the lower part of the right side of the cooling sleeve is connected with a liquid inlet pipe; the upper part of the left side of the cooling sleeve isconnected with the inlet end of a steam drum through a liquid outlet pipe; the outlet end of the steam drum is connected with the stirring shaft A through a steam pipe; and the left side and the rightside of the lower surface of the furnace body are connected with discharge tubes. The limestone powder calcining furnace has the advantages of thorough calcination, wall adhesion prevention, high discharge efficiency, energy conservation and environment protection.

The invention discloses a tumbler periodic self-driven petroleum coke screening device which comprises a screening bin, supporting legs, a feeding opening and a bin cover. The screening bin comprises a material preparation layer, a crushing layer, a screening layer, a ventilation layer, a quantitative feeding device, a self-service type gravitational potential energy crushing mechanism, a self-service type equipotential dust removal swing screening mechanism and an intermediate belt type driving secondary screening preheating device. The invention belongs to the technical field of petroleum coke calcination screening devices, and particularly relates to a tumbler periodical self-driven petroleum coke screening device. The self-service principle, the equipotential principle, the tumbler principle and the Venturi principle are combined and applied to the technical field of petroleum coke calcination screening devices, and the problems that in the petroleum coke screening process, petroleum coke needs to fall through a screen to be screened, and the screening efficiency is low are thoroughly solved. And meanwhile, the contradictory technical problem that the residence time of the petroleum coke on the screen needs to be prolonged in order to improve the screening effect is solved, and the problem that the screening effect of the petroleum coke is not ideal in the screening process is solved.