6results about How to "Dispersed" patented technology

This invention relates to the field of water pollution control technology and discloses the preparation and application of modified chitosan adsorption balls. The invention involves grafting modified nano-micron high-purity composite active iron onto chitosan, then mixing it with dried and crushed sludge. The modified nano-micron high-purity composite active iron is then reacted with the chitosan to modify it. First, the surface of the nano-micron high-purity composite active iron is made to have active functional groups, and then it reacts with chitosan. At this point, the chitosan also has a dispersing effect, resulting in better performance and achieving a synergistic effect of dual phosphorus removal. This invention has low cost, simple operation, and good economic benefits.

The invention relates to the technical field of textile chemical assistants, in particular to a polyacrylate fluoride-free waterproof agent as well as a preparation method and application thereof. The invention provides a polyacrylate fluoride-free waterproof agent which comprises the following components in parts by weight: 7-11 parts of a hard monomer, 81-85 parts of a hydrophobic acrylate monomer, 3-7 parts of a crosslinking monomer, 1-5 parts of a functional monomer, 4-8 parts of a compound emulsifier, 26-30 parts of a cosolvent, 0.4-0.8 part of an initiator and 400-430 parts of water, the compound emulsifier comprises hexadecyl trimethyl ammonium chloride and allyloxy polyoxyethylene ether with the molecular weight of 800 to 1000 Da. According to the invention, allyloxy polyoxyethylene ether and polyacrylate are polymerized and then grafted with a polyoxyethylene ether chain segment, so that the bonding strength of the polyacrylate fluoride-free waterproof agent and fibers can be enhanced, and excellent durability is achieved; by controlling the length of a polyoxyethylene ether chain segment, the arrangement direction and position of a hydrophobic chain are relatively controlled, so that excellent waterproofness is achieved.

The invention provides a method for producing a flow-state backfill material by using undisturbed phosphogypsum building solid waste, and belongs to the technical field of building backfill engineering. After undisturbed phosphogypsum is scattered, the undisturbed phosphogypsum is mixed with the water reducing agent, the water, the ground phosphate rock, the alkaline activator, the filler and other raw materials in the first stirring equipment according to a specific proportion and in a specific adding mode, and the large-flow-state backfill material is formed. Wherein the carbide slag and the red mud in the phosphogypsum and the alkaline exciting agent can adopt original-state water-containing slurry slag, and drying and grinding treatment is not needed. The utilization rate of solid waste in the backfill material prepared by the method reaches 95% or above, a large amount of phosphogypsum and building solid waste can be consumed, and the backfill material has good social and economic benefits, and is simple in production process flow and wide in application range.

A shell-imitated rubber bushing design method based on a microcosmic contact mechanical model belongs to the technical field of rubber bushings, and comprises the following steps: designing a shell-imitated rubber knuckle bearing with a steel-rubber-steel interface synergistic structure; the method comprises the following steps: performing a uniaxial tensile test on a rubber bushing material to obtain stress-strain data, processing the test data by using a fitting tool, and selecting a rubber constitutive model according to a deviation value between a fitting curve and a test curve; performing contact stress analysis and static stiffness calculation on the bionic rubber bushing; the radial contact area of the rubber bushing is calculated, and the steel-rubber interface contact area is optimized by controlling the geometric angle and radius of a steel layer; and importing a single stress-strain result obtained by finite element analysis into fatigue analysis software, and predicting the fatigue life of the rubber bushing. The shell bionic structure is applied to the heavy-duty truck chassis rubber bushing, and the technical problems that an existing heavy-duty truck rubber bushing is insufficient in rigidity and prone to failure due to fatigue under high-strength dynamic loads are solved.

The application belongs to the technical field of stirring equipment, and particularly relates to a numerical control chemical raw material mixture stirrer. In view of the problem that the existing chemical raw material stirrer cannot gradually release auxiliary materials in the stirring process, the following scheme is proposed. The scheme comprises a mixing barrel, a vertical main shaft is sleeved between the bottom inner wall shaft center position of the barrel cover and the shaft center position of the main shaft fixing frame, a stirring middle box is fixed on the circumferential outer wall middle position of the main shaft through bolts, a stirring mechanism is arranged on the circumferential outer wall of the stirring middle box, and an auxiliary material adding mechanism is arranged on the circumferential inner wall of the barrel cover. In the auxiliary material adding process of different mixtures, the auxiliary material adding mechanism of the stirrer is independent, the auxiliary material can enter the inside of the mixing rotating box through the auxiliary material conduit and the mixing feeding pipe, the mixing rotating box can gradually release the auxiliary material in the stirring and mixing process, and the mixing effect of the auxiliary material is improved.

The application discloses a microporous ceramic catalyst carrier and a preparation method thereof, and relates to the technical field.The application comprises the following raw materials: a base material, the base material comprising the following components in parts by weight: bauxite 30-50 parts, fused quartz 47-60 parts, and porcelain clay 10-36 parts; and a binder, the binder comprising the following components in parts by weight: heat-resistant phenolic resin 10-14 parts, fumed silica 23-26 parts, and mica powder 10-16 parts.The application uses bauxite as the main base material to replace alumina, and since the bauxite also contains silica inside and the content of the silica is not high, the bauxite can be better fused with the fused quartz when sintering, so that the sintering temperature is reduced, the forming rate is improved, and the wear resistance is enhanced, and then when the microporous ceramic catalyst carrier is formed, the microporous ceramic catalyst carrier has the advantages of small density, high strength, pressure resistance, stable chemical properties, strong universality, no pollution, multiple shape assembly, and adaptation to complex reaction design.