5results about How to "Increase shear rate" patented technology

The present invention discloses a corrugated flow field plate, which is used for an anode flow field plate of an active direct methanol fuel cell. The corrugated flow field plate is provided with a flow channel, and a regularly distributed flow disturbance structure is provided in the flow channel. The flow disturbance structure is a regularly distributed corrugated structure, forming a corrugated flow channel. The characteristics of the corrugated structure are sinusoidal functions. A sin( Wx ),in A is the amplitude, W is the angular frequency, and the crests and troughs of the corrugated structure form a disturbance structure. The disturbance structure in the corrugated flow field plate of the present invention increases the wall velocity gradient of the flow channel, so the shear rate of the wall increases, which accelerates the emission of the product on the anode side, carbon dioxide gas, and alleviates the situation of insufficient fuel supply and reduced battery performance caused by carbon dioxide gas blockage on the anode side. At the same time, the disturbance structure in the corrugated flow field plate is more conducive to the mass transfer process, thereby improving the output performance of the battery.

The utility model relates to the technical field of stirring equipment, concretely to a kind of anti-condensation stirring equipment for glass cement production, including bottom plate and the moving plate being set on the top of bottom plate, the outside of bottom plate is provided with the moving assembly of making moving plate go up and down linearly moves. The utility model can make the reciprocating of stirring shaft up and down, to realize the stirring of vertical direction, while stirring shaft is in the process of rotating and up and down linear reciprocating motion, stirring blade is constantly in the process of expansion and contraction motion, this reciprocating expansion and contraction motion is superimposed on the rotation of stirring shaft, can increase the shear rate and turbulence intensity of fluid;Periodic expansion and contraction changes flow field structure, possibly breaks laminar boundary layer, promotes microcosmic mixing, expansion and contraction motion generates unsteady flow, triggers secondary flow or vortex, expands stirring action range, reduces mixing dead zone, to improve stirring efficiency, also improve anti-condensation effect.

This invention relates to the field of lithium battery cathode material production technology, and discloses a washing system and washing method. The washing system includes a washing device, which comprises a washing drum and a stirring assembly. The washing drum has a stirring chamber inside, and is equipped with a material inlet and a material outlet communicating with the stirring chamber. The material inlet continuously introduces the material to be washed and the washing solution, while the material outlet continuously discharges the mixture of washed material and washing solution. The stirring assembly includes two spiral shafts rotatably disposed within the washing drum, with their spiral edges staggered and rotating in the same direction. Based on the washing system provided by this invention, the washing process of the material to be washed can be ensured to be continuous, reducing interruptions and improving production efficiency; at the same time, it ensures the uniformity of the material to be washed, avoiding over-washing or under-washing, and guaranteeing product consistency.

The utility model provides material processing equipment, and belongs to the field of material processing equipment. The material processing equipment comprises a shell, a driving mechanism and a crushing disc, the crushing disc comprises a disc body and a plurality of grinding block sets, each grinding block set comprises a plurality of grinding blocks arranged at intervals, the multiple grinding blocks of each grinding block set are arranged around a driving shaft, and the distances between the grinding blocks of different grinding block sets and the driving shaft are different. By arranging the structure of the multiple sets of grinding blocks, the shearing rate and the eccentricity of the materials are increased, the purpose of shaping is achieved on the premise that the smashing effect is guaranteed, and therefore the problem of low tap density is solved, and the technical effect that the materials are smashed and shaped at the same time is achieved.

The invention provides a combined paddle stirring device and application thereof, the combined paddle stirring device comprises a stirring tank, a stirring shaft is arranged in the stirring tank, at least one stirring paddle unit is arranged on the stirring shaft, and the stirring paddle unit comprises a first nested stirring paddle and a second nested stirring paddle; the first nested stirring blade comprises two spiral blades and two fixed shafts, the two fixed shafts are arranged in a staggered manner and are fixedly connected with the stirring shaft respectively, and the two ends of each spiral blade are connected with the two fixed shafts respectively, so that the two spiral blades are rotationally and symmetrically arranged; the second nested stirring blade is positioned between the two fixed shafts and is fixedly connected with the stirring shaft. According to the invention, through the cooperation of the first nested stirring blade and the second nested stirring blade, the power consumption of slurry mixing is effectively reduced, the stirring efficiency is improved, and the device is especially suitable for the acidification gelling process of high-solid-content FCC catalyst slurry.