30results about How to "Reduce solid particle content" patented technology

The invention discloses a graphene organic silver conductive printing ink and a preparation method thereof. The conductive printing ink comprises a conductive function unit precursor, an organic silver complexing agent, an adhesive, a solvent and auxiliaries. The preparation method comprises the following steps: (A) stirring and ultrasonically dispersing the organic silver, the solvent and the organic silver complexing agent under a lucifugal condition to obtain an organic silver complexing solution; and (B) putting the graphene, the resin adhesive, the auxiliaries and the organic silver complexing solution in the lucifugal condition and stirring and ultrasonically dispersing in an environment lower than 10 DEG C, wherein the obtained uniform mixture is the graphene organic silver conductive printing ink. The graphene organic silver conductive printing ink prepared by the method disclosed by the invention is low in solid content, good in stability, good in printing performance and wide in application.

A process and apparatus is presented for the removal of solid particles from a gas stream. The process and apparatus includes adding a second stream of liquid that is sprayed over the openings in trays in a quench tower. The second spray stream provides for a veil of liquid to wash out solid particles from the vapor stream.

The invention relates to a standard brick preparation process and a standard brick, and relates to the field of building bricks and their preparation. The process comprises steps: 1. Making a brick; 2. Spraying a surface treatment liquid accounting for 1-5 wt% of the brick mass on the surface of the brick I; surface treatment liquid I is composed of: A, 5-8% of inorganic mineral powder with particle size ≤ 1.5mm, B, 3-5% of water-soluble polymer, C, 1.5-3.0% of fumed silica , D, water balance, composition; Inorganic mineral powder is the mixture of nano-alumina, cryolite powder and mica powder; Water-soluble polymer is the mixture of polyvinyl alcohol and water-soluble chitosan; 3, under the condition of 70-90 ℃ Drying the adobe sprayed with the treatment solution I; 4. Roasting. The standard brick preparation process of the present invention can effectively reduce the content of solid particles in brick-making waste gas, and has the advantage of reducing the emission of solid particles from the source, and the prepared standard brick has the advantages of good physical and mechanical properties and good permeability resistance.

The invention relates to a dual-working-condition gas generating agent powder column. The gas generating agent is installed in a heat-insulating sleeve. The center of the gas generating agent is provided with a high-burning-velocity drug strip, and the surface of the gas generating agent is provided with an inner ring. The combustion-supporting groove and the outer ring combustion-supporting groove, a liner is provided at the side where the side of the gas generating agent is in contact with the heat insulating sleeve. The gas generating agent grain under dual working conditions starts to burn simultaneously from the surface of the gas generating agent, the surface of the combustion-supporting groove and the surface of the high-burning rate grain, and the burning surface shows a slow decreasing trend, and this trend lasts for a long time. The invention is used in a missile servo power device, and has the advantages of low combustion temperature, long duration of slowing down tendency of the combustion surface, multi-stage charge and multi-working-condition pressure through a single combustion rate charge, and the like.

The invention relates to a treatment system for a concentration tank of iron ore concentrates. The treatment system comprises the concentration tank, a concentration tank overflow tank, a central distribution barrel and ore concentrate pipelines, wherein output ports of the ore concentrate pipelines are connected with the central distribution barrel; the concentration tank is arranged at the outer side of the central distribution barrel; the concentration tank overflow tank is arranged at the outer side of the concentration tank; the ore concentrate pipelines are composed of a plurality of thin ore concentrate pipelines and a plurality of thick ore concentrate pipelines; the plurality of thin ore concentrate pipelines are communicated with the plurality of thick ore concentrate pipelines through a fed ore distribution box; the number of the thin ore concentrate pipelines is larger than that of the thick ore concentrate pipelines; and one ends of the thick ore concentrate pipelines are connected with the central distribution barrel, and the other ends of the thick ore concentrate pipelines are connected with the fed ore distribution box. The ore concentrate pipelines are composed of the thin ore concentrate pipelines and the thick ore concentrate pipelines, so that the ore feeding flow rate is reduced to ensure that the content of solid particles in overflow water cannot exceed the standard under the condition that the concentration tank operates over a design, and furthermore, the treatment capacity of the concentration tank is enhanced, and the content of the solid particles in the overflow water is reduced.