6results about How to "Improve ball milling effect" patented technology

The invention discloses a ball mill with a dustproof structure for producing amino acid from poultry feathers, and relates to the technical field of ball mills. The device comprises a shell, the outer side face of the shell is rotationally connected with the inner side face of a groove plate, end covers are connected to the two ends of the shell through bolts, a transmission assembly is fixedly connected with the top of a bottom plate, the outer side face of a discharging pipe is fixedly connected with the inner side face of the shell, and the side, away from the shell, of the discharging pipe is bent towards the side, close to the bottom plate, of the discharging pipe; the end, away from the shell, of the discharging pipe is in a flat opening shape, the outer side face of the discharging pipe is fixedly connected with a fixing frame, the side, away from the discharging pipe, of the fixing frame is fixedly connected with the top of the bottom plate, the discharging pipe is in the flat opening shape bent downwards, ground feathers can be sprayed out downwards, flying dust is not prone to being generated, gaps of the flat opening shape are small, and the area is not changed. And the material spraying flow speed can be increased, the material spraying volume cannot be affected, smooth discharging can be conducted, and blockage is avoided.

The invention provides cement raw material grinding equipment, which belongs to the technical field of grinding, and comprises a support plate, a first ball-milling cylinder, a second ball-milling cylinder, a third ball-milling cylinder, steel balls, a screening mechanism and a rotating mechanism, the supporting plate is rotationally arranged at one end of the containing cylinder, the first ball milling cylinder, the second ball milling cylinder and the third ball milling cylinder are distributed in the containing cylinder in a triangular shape and rotationally connected with the supporting plate, and through holes are formed in the first ball milling cylinder, the second ball milling cylinder and the third ball milling cylinder. The plurality of steel balls are divided into three specifications of minimum, medium and maximum according to the diameters and are sequentially arranged in the first ball-milling barrel, the second ball-milling barrel and the third ball-milling barrel; the screening mechanism is used for screening the raw materials and correspondingly inputting the raw materials with small, medium and large diameters into the first ball-milling cylinder, the second ball-milling cylinder and the third ball-milling cylinder; and the rotating mechanism is used for driving the first ball-milling cylinder, the second ball-milling cylinder and the third ball-milling cylinder to revolve around the center of the supporting plate and rotate around the axes of the ball-milling cylinders. The cement raw material ball-milling device can improve the ball-milling efficiency and effect of cement raw materials.

The invention relates to an integrated preparation device for a ball-milling ash-based passivation material. The integrated preparation device comprises a feeding system, a ball-milling system, a washing and centrifuging system and a drying system, wherein the feeding system comprises a storage unit and a feeding pipeline; the ball milling system is connected with the feeding system; the ball milling system is positioned below the feeding system for a certain distance, and feeding is realized by utilizing gravity; the washing centrifugal system is connected with the ball milling system and comprises a centrifugal machine, a cleaning liquid storage tank, a waste liquid storage tank, a liquid conveying pipeline, a discharging pipeline and an automatic pH meter; and the drying system is connected with the washing and centrifuging system and comprises a feeding pipeline and a dryer. According to the invention, the ball milling system and the washing centrifugal system which are automatically controlled are designed, so that the purposes of efficiently preparing the ash-based passivation material and automatically washing pH are achieved.

The invention relates to the technical field of hydrogen storage materials, in particular to a pyrochlore structure Bi2Ti2O7 doped magnesium hydride hydrogen storage material and a preparation method thereof. Comprising the following steps: firstly, adding bismuth nitrate pentahydrate into an acetone solution, and uniformly stirring; dropwise adding tetrabutyl titanate into the mixture, and continuously stirring until the tetrabutyl titanate is completely dissolved; performing ultrasonic treatment on the solution, performing hydrothermal reaction, washing, performing suction filtration to obtain sediment, and drying; then calcining for a period of time in an air atmosphere to obtain Bi2Ti2O7; and finally, grinding the MgH2 and 8 to 12 weight percent of Bi2Ti2O7 catalyst together in an inert atmosphere, so as to obtain the hydrogen storage material with the Bi2Ti2O7 doped with the magnesium hydride. The preparation process is simple, the Bi2Ti2O7 microspheres are synthesized by adopting a surfactant-free and template-free liquid phase method, the energy consumption is low, and the pollution is small; the hollow spherical catalyst can greatly enhance the ball milling effect, is beneficial to uniform distribution on an MgH2 matrix, and reduces hydrogen storage capacity recession; the Bi2Ti2O7 doped magnesium hydride hydrogen storage material synthesized by the method disclosed by the invention has the hydrogen desorption initial temperature of 187 DEG C and the hydrogen desorption amount of 6.8 wt%.

The present application relates to the field of calcium carbonate production, and discloses a ball milling system for calcium carbonate production, which solves the problem that the calcium carbonate needs to be combined with an appropriate amount of water for ball milling movement when the ball mill is used for ball milling treatment during the production process, and the operation needs to be repeatedly added by the operator, and the calcium carbonate on the steel ball needs to be flushed with water after ball milling, resulting in low efficiency of calcium carbonate ball milling. When the ball milling of the calcium carbonate is completed, the sleeve is vertically set downward, and the calcium carbonate and water can flow out from the filter holes of the two groups of half-pallet plates, realizing the discharge, so that the ball milling operation of the calcium carbonate with water is effectively solved, and the working efficiency of the calcium carbonate ball milling is improved.

The invention discloses a preparation method of a hydrogen storage material, and relates to the technical field of hydrogen storage materials, the preparation method of the hydrogen storage material comprises the following steps: 1, preparing raw materials; secondly, an alloy casting is prepared; 3, hydrogen storage particles are prepared; 4, preparing a mixed solution; and 5, hydrogen storage material mixing treatment. According to the method, a smelting method and a mechanical alloying method are combined, the raw materials can be preliminarily fused in a melting mode before ball-milling machining is conducted on the raw materials, so that the fusion effect of the hydrogen storage alloy can be better during ball-milling, meanwhile, during ball-milling, the interior of a ball-milling tank is repeatedly inflated and deflated, and the fusion effect of the hydrogen storage alloy is improved. According to the method, the ball-milling effect can be guaranteed, the ball-milling time can be shortened, the ball-milling cost is reduced, and the activation condition is effectively reduced and the activation period is shortened through the effect of improving the activation performance of the alloy by the excessive titanium metal.