2results about How to "Granularity controllable" patented technology

The application discloses an alumina ceramic membrane sintering aid and a preparation method and application thereof, relates to the technical field of ceramic membranes, and the alumina ceramic membrane sintering aid is composed of nano silicon oxide and foamed powder, wherein the foamed powder comprises 20 parts of alumina powder, 50-80 parts of potassium feldspar, 5-20 parts of sodium feldspar, 0.1-1 part of sodium carboxymethyl cellulose, 0.1-1 part of sodium tripolyphosphate, 0.5-3 parts of sodium hexametaphosphate, 0.3-1 part of 1000-mesh manganese dioxide, 0.1-0.6 part of 1000-mesh silicon carbide and 100 parts of water. The alumina ceramic membrane sintering aid is controllable in particle size, and the temperature can be controlled when the alumina ceramic membrane sintering aid is applied to the preparation process of an alumina ceramic membrane support. In the preparation process of the alumina ceramic membrane support, the nano silicon dioxide in the sintering aid can adjust the viscosity of high-temperature liquid, accelerate the reaction between the sintering aid and the alumina powder, has a larger bridging effect, and the porous liquid at high temperature can guarantee the strength of the alumina ceramic membrane support and increase the porosity.

This invention discloses a nickel-iron powder grinding and preparation apparatus, comprising a base on which a conveying system, a grinding system, and a dust collection system are mounted. The conveying system includes a hopper and a belt conveyor. The grinding system includes a weighing bin, a feed pipe assembly, a grinding assembly, a transmission device, and a cooling pipe assembly. The dust collection system includes a fan assembly, a centrifugal dust collector, and a bag filter dust collector. This invention enables highly efficient grinding of nickel-iron alloys.