70results about How to "Improve particle distribution" patented technology

The invention discloses a lithium-based concrete sealing solidifying agent. The lithium-based concrete sealing solidifying agent comprises the following components in percentage by weight: 50.0-90.0 percent of lithium silicate sol, 0.01-1.0 percent of wetting and dispersing agent, 0.01-1.0 percent of defoaming agent, 0.01-1.0 percent of permeability-resistant agent, 0.0-10.0 percent of stabilizing agent, 0.0-1.0 percent of accelerating agent and the balance of water. The lithium-based concrete sealing solidifying agent can produce C-S-H gel through the effective permeability and the hydration reaction with dissociative calcium ions in concrete to seal capillary pores in the concrete, so that the permeability resistance, the wear resistance, the hardness and other performance of the concrete can be improved.

The invention relates to a drinking straw which is sealed and/or re-sealable at the ends and which can serve as a supply container for a dry food product or which can comprise multiple parts, and to its use.

A full cone liquid spray nozzle is provided. The spray nozzle includes a nozzle body having a discharge orifice at a downstream end and an inlet at an upstream end for connection to a liquid supply. A liquid flow passageway extends through the nozzle body communicating between the inlet and the discharge orifice. A vane is disposed in the liquid flow passageway upstream of the discharge orifice. The vane has a plurality of V-shaped passageways therein. Each V-shaped passageway extends inward at an angle with respect to a longitudinal axis of the vane between an upstream face and downstream face of the vane. A whirl and mixing chamber defined by the liquid flow passageway is arranged between the vane and the discharge orifice.

A handheld spreader having a fillable container for dispensing particulate from an electrically powered blower assembly in a detachable base. The spreader includes a feed slide leading from the container to the air stream channel of the base that has a vibrating eccentric plate for guiding and improving the flow of particulate from container into the air stream. The container and base are frictionally engaged together, thereby allowing for easy assembly of spreader, including assembly after container has been filled with particulate, as well as easy reassembly if container is removed and refilled. The spreader includes a rotating slide that may be operated by a user to open and partially close the feed slide of the container to control the feed rate.

A solid particle distribution controller includes a plurality of division plates proximate a division between an upstream solid particle conveyance pipe and a plurality of downstream pipes. The solid particle distribution controller also includes a plurality of extension plates. Each of the extension plates is movably mounted proximate to a respective division plate for movement in an upstream and downstream direction with respect to the division plate. The plurality of extension plates are configured and adapted for motion in the upstream and downstream direction independent of one another to extend upstream of the division plates as needed to improve solid particle distribution among the downstream pipes.

An interposer comprising a non-conductive carrier sheet with a pre-arranged pattern of conductive interconnect members positioned therethrough and formed from an elastomeric thermoplastic with suspended spherical and non-spherical conductive particles. The non-spherical conductive particles of the present invention are positioned substantially perpendicularly to and partially through the contact faces of the interconnect member, thereby resulting in higher conductivity and efficiency. The interposer is formed by a mold comprising two sections with first and second sets of vias formed in the first and second mold sections, respectively, which permit the injected elastomer mixture to flow completely through the mold cavity and thereby aligns the non-spherical conductive particles. The exit side of the mold is further contacted by support posts of a separable mold interface creating a network of vent passages for venting of air and the elastomer mixture, resulting in less pressure within the mold and less mold flash.

The invention discloses an acidic iron-containing wastewater recycling system comprising a pickling wastewater storage pool, wherein the pickling wastewater storage pool is connected with a neutral oxidation reaction tank through a raw water acid proof pump, and a stirrer, a 1# online pH meter and a 1# online ORP (oxidation reduction potential) meter are fixed in the neutral oxidation reaction tank; an alkali liquor storage tank is connected with the neutral oxidation reaction tank through a 1# metering pump; a flocculant storage tank is connected with the neutral oxidation reaction tank through a 2# metering pump; the neutral oxidation reaction tank is connected with a settling tank through a slurry pump, the settling tank is connected with a sludge concentration tank, and a supernatant drain pipe is further connected to the settling tank; the sludge concentration tank is connected with a high pressure plate frame filter press through a high pressure slurry pump; and the neutral oxidation reaction tank is further connected with a blower. The invention further discloses an in situ modification method for treating wastewater by the acidic iron-containing wastewater recycling system. By adopting the acidic iron-containing wastewater recycling system disclosed by the invention, more than 55% of Fe3O4 can be stably prepared and recycled through in-situ reaction in an acidic wastewater neutralization tank under normal temperature and normal pressure conditions.

The invention provides a high-efficiency powder-selecting machine with wide particle diameter distribution. The powder-selecting machine comprises a shell body, a cage-type rotor, a feed spreading tray, a central wind pipe and a coarse powder cone; the central wind pipe is arranged on the upper part of the shell body; the lower part of the shell body is provided with the feed spreading tray and the rotor; a wind inlet and a feed inlet are arranged on the shell body; the lower part of the rotor is provided with the coarse powder cone; a semiannular collecting hopper of a secondary sorting device is arranged on the upper part of the coarse powder cone; a lower mouth of the collecting hopper is communicated with an upper mouth of a four-way joint through a wind locking valve; two side mouths of the four-way joint are connected with a separator and secondary wind respectively; a lower mouth of the four-way joint is connected with the wind locking valve; an upper mouth of the separator is connected with a wind outlet pipe; and a lower mouth of the separator is communicated with an overflow valve through the wind locking valve. The high-efficiency powder-selecting machine can once sort out fine powder, finer powder and coarser powder needed by cement with wide particle diameter distribution, and improve the particle distribution of a sorted powder body so that water amount needed by the cement is reduced, improve the compatibility between the cement and an additive and the working performance of the cement and reduce energy consumption and production cost.

Methods of forming dispersible dielectric particles, as well as articles and compositions that include the dispersible dielectric particles, are provided. The methods involve forming an aqueous mixture of dielectric (e.g., barium titanate-based) particles and replacing at least a portion of water in the mixture with a non-aqueous solvent (e.g., ethanol). According to one set of methods, the particles are then dried. The limited, or lack, of water present in the mixture during drying reduces capillary forces that otherwise may draw the particles together to cause formation of strong agglomerates. Thus, particle agglomeration during drying may be reduced which increases particle dispersibility. According to another set of methods of the invention, the particles are not dried after non-aqueous solvent replacement, thus, avoiding formation of agglomerates during drying and increasing dispersibility. In both sets of methods, particles (or mixtures thereof) may be further processed, for example, to form composite layers. As a result of the increased particle dispersibility, the particles are relatively uniformly distributed throughout the polymeric material. This uniform distribution improves properties of the composite layers which may be used as an embedded capacitor in electronic applications including printed circuit boards.

A solid particle flow distribution controller includes an extension skirt configured to be mounted to a discharge skirt at a division between an upstream solid particle conveyance pipe and a plurality of downstream pipes. The extension skirt includes a plurality of circumferential segments. Each segment is movably mounted to the discharge skirt for movement in an upstream and downstream direction with respect to the discharge skirt. The segments of the extension skirt are configured and adapted for motion in the upstream and downstream direction independent of one another to extend upstream of the discharge skirt as needed to improve solid particle distribution among the downstream pipes.

The invention relates to a mineral waste residue liquid composite grinding aid and a preparation method thereof. The mineral waste residue liquid composite grinding aid is prepared from the following raw materials: 15-20 parts by weight of mixed alcohol, 5-10 parts by weight of ethyl acetate, 5-10 parts by weight of molasses, 1-10 parts by weight of lauryl sodium sulfate, 1-10 parts by weight of sodium hexametaphosphate and 800-100 parts by weight of water. The mineral waste residue liquid composite grinding aid has low toxicity, does not volatile and is stable in sources, sufficient in supplies, simple to process and prepare and low in cost; after granulated blast-furnace slag is doped in the mineral waste residue liquid composite grinding aid, the distribution and the morphology of separate particles can be improved, and the quality of mineral waste residue micro powder is not affected; the mineral waste residue liquid composite grinding aid has the advantages of increasing the yield and improving the quality of the mineral waste residue micro powder and meanwhile greatly reduces the energy consumption. The mineral waste residue liquid composite grinding aid has stable property, high cost performance and wide adaptability, is low in cost and mixing amount and can be used for improving the grinding effect and increasing the yield of a grinder by above 15%, the specific surface area of the mineral waste residue micro powder by 4.7%-6.2% under the condition of the same grinding time and the activity index of the mineral waste residue micro powder.

The invention provides a wear-resistant steel-bonded hard alloy composite hammer head and a manufacturing method thereof. The manufacturing method comprises the following steps of: step (1). blendingtitanium powder, graphite powder, additional hard particles and additives, adding a water-based binder, mixing uniformly, and making the mixture into alloy powder paste or stamping the mixture to forma preform; step (2). pasting the alloy powder paste or fixing the dried preform to the lost foam model of the hammer face of the hammer head, then coating anti-sticking sand fireproof paint, drying,burying in a box, and performing dry sand vibration modeling; and step (3). pouring high-toughness austenitic manganese steel or low-carbon alloy steel melt, using high-temperature molten steel to induce the combustion reaction between titanium and carbon in the alloy powder paste or preform, wherein TiC particles are generated in situ, and the high-temperature molten steel penetrates into an alloy particle layer, and interacts with additional TiC, WC, Al2O3 and other alloy powder particles; and performing cooling and cleaning, then performing heat treatment, and thus, the high-toughness and high-hardness wear-resistant steel-bonded hard alloy composite hammer head is manufactured.

The invention discloses a liquid grinding aid for improving the later strength of cement and a preparation method of the liquid grinding aid. The grinding aid is prepared from glycerol, modified diethanol amine, polycarboxylate alcohol amine ester, anhydrous sodium sulfate, ammonium acetate, paraffin oil, sodium lignin sulfonate, calcium lignosulphonate, sodium tripolyphosphate and deionized water. The grinding aid is simple in preparation process, low in cost, good in adaptability, capable of remarkably reducing the grinding energy consumption and improving the grinding efficiency and the later strength of cement, environmentally friendly, free of adverse effects on human health and good in application prospect.

A filling device, enabling simultaneous filling with at least two granular materials, without mixing them, includes an inner hopper supplying a first type of material and an outer hopper supplying a second type of material, and a dispenser arranged downstream from the hoppers. The dispenser includes a central passageway arranged directly opposite the inner hopper, and a deflecting mechanism towards the exterior of the dispenser arranged directly opposite the outer hopper. The deflecting mechanism at least partially borders the central passageway. The dispenser is capable of rotating about a longitudinal axis, the direction of which is the mean direction of flow, in which the dispenser includes a central shaft including an upper end opposite the inner hopper forming a deflecting surface for the first type of material coming from the inner hopper.