121results about How to "Suppression of floating" patented technology

The invention relates to lightweight aggregate concrete for heat preservation of structures, and belongs to the technical field of building materials for civilian use. The lightweight aggregate concrete for heat preservation of structures comprises the following raw materials in parts by mass: 360-460 parts of cement-based cementing material, 410-460 parts of ceramsite, 110-120 parts of modified vitrified micro balls, 15-20 parts of concrete modifier, 260-290 parts of water and 3.6-4.6 parts of water reducing agent. The lightweight aggregate concrete for heat preservation of structures with the heat conductivity coefficient of 0.25-0.4W/(m.K) and the dry apparent density of 900-1200kg/m<3> is obtained by using the modified vitrified micro balls and the ceramsite as aggregates under the synergistic effect of the components according to a reasonable component proportion, and after the lightweight aggregate concrete is cured for 28 days, the compressive strength of the lightweight aggregate concrete is 8-15MPa. The lightweight aggregate concrete for heat preservation of structures has good heat preservation performance and relatively high strength. Compared with the strength of a full lightweight concrete material prepared from ceramsite perlite, the strength of the lightweight aggregate concrete is obviously improved; compared with the heat conductivity coefficient of a full lightweight concrete material prepared from ceramsite pottery sand, the heat conductivity coefficient of the lightweight aggregate concrete is obviously reduced; and the lightweight aggregate concrete can be used as a lightweight aggregate concrete material for heat preservation of structures.

The invention discloses a tackifying and foaming stirring device for preparing foamed aluminum, relates to a stirring device, and solves the problem that the high-quality foamed aluminum cannot be prepared by adopting the existing forming device. The tackifying and foaming stirring device for preparing the foamed aluminum comprises a cylindrical stirring furnace body, wherein a heating device is fixed outside the furnace body, a stirring paddle is arranged inside the furnace body, and the stirring paddle is installed on a furnace cover; the stirring paddle is in a four-layer folded-blade paddle form, four layers of paddle blades are arranged on a central shaft of the stirring paddle, each layer is provided with three paddle blades, the paddle blades at each layer are arranged to stagger each other for 120 degrees, a dip angle of the paddle blades at the lowermost layer is smaller than that of the paddle blades at the upper three layers, and the upper part of the central shaft is fixed on the furnace cover through a fixing disc and the central shaft driven by a motor to rotate. The tackifying and foaming stirring device is simple in structure, ingenious in design, capable of uniformly and rapidly stirring metal liquid by virtue of the four-layer paddle blades and good in foaming effect.

The invention provides a hypoxia-aerobic comprehensive treatment method for tannery waste water. The hypoxia-aerobic comprehensive treatment method for the tannery waste water comprises the following steps: (1), performing classification pretreatment on waste water in a tannery production process, and fully mixing the pretreated water; (2), performing coagulating precipitation treatment on mixed waste water; (3), importing precipitated supernate into a hypoxia-aerobic pool to generate nitrification and denitrification reactions; (4), imputing the waste water treated in the hypoxia-aerobic pool into a secondary precipitation tank to perform a precipitation treatment, directly discharging precipitated supernate or performing an advanced treatment according to standard requests, enabling the precipitated sludge to backflow to the hypoxia-aerobic pool; and (5), conveying the sludge in a coagulating precipitation pool and the residual sludge in the secondary precipitation tank to a sludge concentration pool, dewatering by utilizing a sludge dewatering machine to form filter cakes, and conveying the filter cakes outside. According to the hypoxia-aerobic comprehensive treatment method for the tannery waste water, the quality and the quantity of water entering a subsequent treatment unit can be fully balanced, the treatment load of a biochemical system is effectively reduced, the settling property of the sludge is improved, the nitrification and denitrification efficiencies of the system are quickly improved, the sludge loss is prevented, the treatment effect is stabilized, and the quality of supernate effluent is ensured.

The invention discloses a comprehensive recovery method for tungsten accompanying fluorite resources. The method comprises the steps that tungsten accompanying fluorite ore is broken and ground and then is subjected to magnetic separation deferrization and flotation desulfuration; the desulfured tailings are subjected to flotation separation I through a combined inhibitor composed of sodium silicate, bake glue and gallotannic acid and a collecting agent fatty acid to obtain tungsten and fluorite bulk concentrate; the bulk concentrate is subjected to flotation separation II through an inhibitor amino phosphonate after being subjected to acid decalcification treatment, the foam product is fluorite concentrate, and the tailings product is tungsten concentrate. By means of the method, the comprehensive recovery rate of tungsten and fluorite resources is greatly improved, the flow is short, the medicament is simple, operation is convenient, the labor intensity is low, energy consumption is low, environmental protection and high efficiency are achieved, and the ore dressing cost is greatly reduced.

The invention discloses a chocolate sauce stabilizer which contains carrageenan, sodium carboxymethylcellulose, sodium citrate, potassium chloride and glucose. A formula of chocolate sauce contains fructose corn syrup, cocoa powder, sugar, the stabilizer and deionized water. A preparation method for the chocolate sauce comprises the following step of: mixing glycine liquor and cocoa syrup uniformly to obtain the chocolate sauce. A formula of double-layer chocolate fermented milk contains fermented milk and the chocolate sauce. A preparation method for the double-layer chocolate fermented milkcomprises the following steps of: (1) covering the chocolate sauce of more than or equal to 65 DEG C on the lower layer of a container, and cooling the temperature to be below 45 DEG C; and (2) adding the fermented milk into the container in the step (1) to cover the chocolate sauce. According to the chocolate sauce and the double-layer chocolate fermented milk obtained by the preparation methods, the double-layer chocolate fermented milk is clear in layering of the chocolate sauce and the fermented milk and has the advantages of stable structure, smooth mouthfeel and thick flavor.

The invention discloses a novel mica inhibitor and a preparation method and a use method thereof. The mica inhibitor is N-methyl-9-heptadecenoic amidoethyl sodium sulfonate. The use method is as follows: (1) mica inhibitor N-methyl fatty amido acetate is prepared into aqueous solution with 5 to 10 percent of weight concentration; (2) mica ore is crushed or ground into 0.1mm to 2mm; (3) each ton of ore is added with 100g to 500g of mica inhibitor and 100g to 800g of carboxylic acid collector and uniformly mixed for 5 to 10 minutes, and deferrization operation is carried out before mica floatation. In the deferrization operation before mica floatation, the mica inhibitor is added to inhibit mica from floating up, so that the loss rate of mica is reduced. The mica recovery efficiency is increased. The mica inhibitor solves the problem that the loss rate of mica is high in the deferrization operation of floatation before mica floatation operation, the ferric mineral adsorbed on the surface of mica can be separated from the surface of mica, and during the floatation of ferric mineral, less mica is mechanically entrapped to float up.

The invention provides a lead zinc ore flotation depressing agent composition and a lead zinc ore flotation method. The problem that the grade of zinc in lead concentrate is high is solved, the zinc recovery rate is improved, meanwhile, the consumption of flotation reagents needed in the method is low, and cost is greatly saved. In addition, the depressing agent composition restraining zinc floating is good in zinc retraining effect, nontoxic, free of time limiting performance and wide in raw material source.

The invention provides an elevating control apparatus for an agricultural working machine which include an elevating drive mechanism. The elevating drive mechanism can be connected with a working apparatus of a drive machine body by elevating freely, control action based on detected high information to ground, maintain high of the working apparatus to ground with a given high, and process elevating action suitably even if high of the working apparatus changing rapidly. A detection value (thet) of a high detection apparatus come from the detection working apparatus to ground and a variable speed (omege) obtained by processing differential coefficient to the detection value, are used as a high information to ground for controlling action of the elevating drive mechanism (5).

The invention relates to a hematite anti-floatation depressor. The hematite anti-floatation depressor is prepared by waste residues produced during bear making, potassium permanganate, sodium hydroxide and water according to the weight proportion of 1:5-20%:4-20%:80-120%. The hematite anti-floatation depressor is easy to prepare, good in floatation effect and low in usage, the defects of maize starch as the depressor are overcome, selectivity of the depressor is improved, iron recovery rate is increased, usage of the depressor is reduced, the requirements of the dressing process are met, sufficiency of iron ore resources for the iron and steel industry in China is ensured, and immoderate reliance and consumption on grains are reduced.

The invention provides a macadamia nut drink, which belongs to the technical field of drink preparation. The macadamia nut drink comprises the following materials: macadamia nut, xylitol, sorbitan, sucrose, citric acid, lactic acid, an emulsifier, a stabilizer, fungal protease, papain, aminopeptidase, and lactic acid bacteria; and the weight ratio of papain, aminopeptidase and lactic acid bacteriais: (0.1-0.2): (0.008-0.02): (0.2-0.3). The macadamia nut drink is obtained by the steps of pressing, pulping, enzymatic hydrolysis, debittering, blending, homogenization, fermentation, sterilizationand the like. The macadamia nut drink improves the nutrient content and stability of macadamia nut drink by using a reinforcing system composed of papain, aminopeptidase and lactic acid bacteria.

The present invention provides a color resist composition and a color filter using the same. The color resist composition contains (A) coloring matter, (B) alkali developable resin composition, (C) photopolymerization initiator and (D) organic solvent, the (D) organic solvent contains PGMAC and dialkylacylamide selected from DMAC or DEAC as necessary components, thereby restraining deflection caused by upwards float or removal of the color resist at time of color resist development with alkali developing liquid. Furthermore, surface roughness concentration of a light shading layer or the coloring layer may be reduced by using the color resist composition, and developing unevenness of the color filter may be prevented.

The invention discloses a production technology for lead and zinc floatation mineral powder. The technology sequentially comprises the steps of a, ore crushing, b, ore grinding, c, ore dissolving pulp preparing, d, dosing and stirring, e, lead floatation, f, zinc floatation, g, water removing and h, milltailing treatment. Added drugs comprise inhibitors, collecting agents, activating agents and foaming agents. The inhibitors are made of one or several of zinc sulfate, lime, sodium sulphide and sodium sulfite, so that the hydrophilic property of the zinc ore is enhanced, and upward floating of the zinc ore is inhibited; the problem that the grade of zinc in the lead concentrates is high is solved, and the zinc recycling rate is improved; meanwhile, used flotation reagents are small in consumption, and the cost is saved; the whole production technology is environment-friendly; and the production technology is good in floatation effect, non-poisonous, free of time bound, wide in raw material resource and capable of being widely applied and popularized.

The invention relates to a method for rapidly starting a denitrification-nitrification biochemical treatment system, the denitrification-nitrification biochemical treatment system comprises the following components: a homogenizing unit, an anoxic unit, an aerobic unit and a deposition unit; the anoxic unit and the aerobic unit are collectively referred to as a biochemistry unit. The method is characterized in that an oxidizability substance required by denitrification is added in the homogenizing unit or the anoxic unit for domestication of denitrifying bacteria in advance, an iron compound is added at the homogenizing unit or the anoxic unit or the aerobic unit or an outlet of the aerobic unit for improving the sludge settlement performance of the deposition unit, and inhibition of iron ion in the iron compound (except iron hydroxide) on the denitrification and nitrification reactions can be eliminated by adding alkalescence substance. The method guarantees rapid starting of the denitrification-nitrification biochemical treatment system, when the denitrification-nitrification biochemical treatment system is started by using same seed sludge and a water inlet program. The method provided by the invention can complete starting by at least three weeks in advance, and the effluent standard-reaching rate at a starting period is increased.

The invention provides an EPS (Expandable Polystyrene) light aggregate concrete thermal insulation hollow block and a construction method thereof, belonging to the technical of a concrete building material. The hollow block is prepared by using waste EPS (Expandable Polystyrene) particles as aggregates in concrete, the cement as a cementing material and adding pulverized fuel ash, silica fume, polymer emulsion and water. The EPS light aggregate concrete thermal insulation hollow block solves the problems of weight and thermal insulation property when a brick-concrete structure is used as a wall; and due to the recycling of lots of pulverized fuel ash and EPS, the environmental stress is eased, and the EPS light aggregate concrete thermal insulation hollow block has very effect on the elimination of environmental pollution. The hollow block provided by the invention has the characteristics of light weight, excellent thermal insulation property, simple construction method and green environmental protection.

The invention provides lightweight high-strength waterproof concrete and a preparation method thereof, and belongs to the field of concrete. The lightweight high-strength waterproof concrete comprisesthe following components in parts by mass: 450 to 500 parts of Portland cement, 130 to 160 parts of mineral powder, 130 to 160 parts of fly ash, 70 to 80 parts of silica fume, 60 to 85 parts of glassmicro-beads, 16 to 18 parts of steel fibers, 180 to 210 parts of iron tailing sand, 350 to 400 parts of pore-sealing fly ash ceramsite, 180 to 200 parts of water, 15 to 25 parts of a water reducing agent and 4 to 5 parts of a permanent solidification liquid RMO. The pore-sealing fly ash ceramsite is prepared by a method comprising the following steps: immersing fly ash ceramsite into a mixed solution of RMO and water, pre-wetting, draining off water after 1 hour, and then carrying out coating treatment by using a mixture of Portland cement and iron tailing sand powder, so as to obtain the pore-sealing fly ash ceramsite. The concrete disclosed by the invention has the properties of light weight, high strength and water resistance.

The invention discloses a combined agent for pyrite flotation. The combined agent comprises No.2 oil serving as a foaming agent, and a collecting agent formed by mixing ethyl xanthate and butyl xanthate; and under the conditions that the mass content of iron is 36.7 to 37.4 percent and the mass content of kaolin impurity is 55.6 to 57.3 percent in pyrite, based on 30 to 40 mass percent pyrite pulp, the combined agent contains 1,000 g/t of No.2 oil, 200 to 400 g/t of ethyl xanthate and butyl xanthate mixed in a ratio of 1:1, 100 to 200 g/t of tannic acid, and 200 to 350 g/t of copper sulfate. According to the combined agent for flotation of the pyrite using kaolin as a main impurity, the ore concentrate grade of the pyrite is greatly improved, and the yield of the pyrite is also greatly improved; and meanwhile, the combined agent has the advantages of low equipment corrosion, low adverse effect on the human body and the environment and relatively low cost, and further improves the comprehensive benefit.

A milk drink excellent in emulsion stability is obtained by incorporating a vegetable protein (preferably a vegetable protein and a sucrose/fatty acid ester and/or polyglycerol/fatty acid ester) into a milk drink. The vegetable protein preferably is soybean protein. The sucrose/fatty acid ester preferably is one having an HLB of 10 or higher. The polyglycerol/fatty acid ester preferably is one having a cloud point as measured under given conditions of 80 DEG C or higher. An animal protein may be used in combination therewith. In this case, the animal protein preferably is a protein derived from cow's milk.

The invention relates to synchronous grouting slurry for shield construction of a water-rich stratum and a preparation method thereof. The synchronous grouting slurry comprises a component A, a component B and a component C, wherein the raw materials of the component A comprise silicate 42.5-grade cement, II-grade fly ash, river sand and sodium bentonite, the raw materials of the component B comprise hydroxyethyl methyl cellulose and tap water, the raw material of the component C comprises nano silicon dioxide, the tap water, the ratio of the blending amount of the component B to the blending amount of the component A is 3: 5, and the ratio of the blending amount of the component C to the blending amount of the component A is 1: 2; the synchronous grouting slurry is high in early-stage shear strength, good in groutability, stable, high in stone rate, low in bleeding rate and good in dilution resistance, certain shear resistance is provided after the synchronous grouting slurry is injected, then duct pieces are inhibited from floating upwards, the effect of stabilizing the duct pieces can be achieved, and the problems of cracking and water seepage of the duct pieces are solved.

A coffee beverage that even when the amount of roasted coffee beans is large or when use is made of deeply roasted coffee beans, inhibits the floating of milk components and is free from any aggregation despite long-term storage. Use is made of an emulsion stabilizer composed of a sorbitan fatty acid ester and a diglycerol fatty acid ester wherein the content of monoesters is >= 50 wt.%. As the sorbitan fatty acid ester, preferred use is made of one of >= 4 HLB. In particular, this emulsion stabilizer is effective in a milk coffee wherein the content of coffee extract is in the range of 5 to 10 wt.% in terms of raw beans.