121results about How to "Solve the precipitation problem" patented technology

The invention relates to a base pit dewatering and water saving device and a construction method thereof. The middle part of the base pit of a baseboard structure is provided with a well pit; the well pit is internally and vertically provided with a no-sand tube; pebbly sand is filled between the bottom and periphery of the no-sand tube; the top of the no-sand tube is higher than the top surface of the well pit; a water pump is arranged in the no-sand tube; blinding layer concrete is poured at the top surface of the well pit which is at the periphery of the no-sand tube and the side wall of the base pit of the baseboard structure; and the top elevation of the no-sand tube is flush with the elevation of a blinding layer; a dewatering conduit is pre-buried in a base pit baseboard right above the no-sand tube, a waterproof layer is paved on the blinding layer concrete, a layer of waterproof and protective concrete is poured on the waterproof layer, and the base pit baseboards are poured above the waterproof and protective concrete and at the periphery of the dewatering conduit. The method of the invention has lower investment, saved cost and less amount of dewatering amount, thereby reducing the loss of underground water and protecting water resource; and the method can be adopted for a project in which the well point dewatering method is not ideal for dewatering or a project in which the underground water is near the base pit elevation.

A method for producing orientated silicon strip by continuously casting and rolling sheet blank is disclosed. The processing step as follows: continuously cast the sheet blank, equally heat it by a equal-heating furnace, hot continuous roll, normalizing anneal, cold roll, decarburizing anneal, high temperature anneal. In the equal-heating furnace the temperature is controlled at 1050-1150 deg.C, time is 10-120 min. Advantages: the sheet blank cooling procedure is saved to solve the problem of inhibitor precipitation; it uses low temperature heating to replace high temperature heating so as to avoid the damage of heating furnace; reduced energy consumption and raised production efficiency and product quality.

The method comprises: its standard solution uses the healthy human blood serum as base substance; the fructosamine measuring reagent box uses a combination of dual reagents R1 and R2; said R1 comprises NBT reaction component, pH is neutrality; said R2 is alkalinity potassium carbonate buffer solution; the ratio of R1,P2 to the sample under test is 40-50: 8-12: 3.

The invention discloses phase-change thermal-insulating powder for energy-saving thermoregulation of buildings and a preparing method thereof and relates to the field of building energy-saving thermal insulation materials. The phase-change thermal-insulating powder is characterized in that the phase-change thermal-insulating powder is obtained by coating the surfaces of phase-change material fine particles with nanometer hydraulic gel. By means of a shell formed by the nanometer hydraulic gel, solid-liquid phase-change circulation of a phase-change material is achieved in a relatively independent space, and precipitation and leakage are avoided; particularly, massive adding can be conducted to improve energy-saving thermoregulation property without influencing the strength of a building material. Due to the fact that the shell of the phase-change material is made of the hydraulic gel, the adaptability of the powder in the building material is high, and the powder is well compatible with and can be well mixed with concrete, mortar, putty and paint. Furthermore, a heat conduction agent is added to the hydraulic gel, thermoregulation sensitivity is improved, the phase-change material can absorb or release heat in time, energy is saved, and the temperature in a building can be adjusted to be at a proper level all the time. The production process is easy to control, cost is low, and technical support is provided for the application of the phase-change material to energy-saving thermoregulation of buildings.

The invention discloses a construction method for a large-area pit support structure in a deep-sludge type soft soil area and relates to the technical field of geotechnical engineering. The construction method solves the problems that for a soil layer with distribution of deep sludge and a construction site large in area and small in dredging depth, an existing pit support structure construction method is large in influence to surrounding environments, high in engineering cost and long in construction period. The construction method includes: 1, separating an area within a foundation pit excavation sideline into at least four subareas; 2, constructing piles along the excavation sideline by a construction method and fixing concrete ring beams on the piles; 3, constructing within one subarea and laying light well point pipes before earth excavation; 4, excavating earth in the current subarea, pouring a baseplate and brackets and erecting steel tube diagonal bracings on the brackets; 5, removing the steel tube diagonal bracings in the construction subarea after construction meets requirements, pulling out H-shaped steels, and circularly applying the steel tube diagonal bracings and the H-shaped steels to construction for the next subarea; 6, repeating the steps from step 3 to step 5 until constructions for all the subareas are completely sequentially, and thereby finishing the construction for the integral foundation pit support structure.

The invention discloses a macromolecular intumescent flame retardant with phosphorus and nitrogen and a synthesis method thereof. The synthesis method comprises the following steps: using acetonitrile as solvent and 3,9-dichloro-2,4,8,10-tetraoxa-3,9-diphosphaspiro-3,9-dioxa[5.5]undecane and 2,6-diaminopyridine as raw materials to react under the action of catalyst, and purifying the product to obtain poly(3,9-dichloro-2,4,8,10-tetraoxa-3,9-diphosphaspiro-3,9-dioxa[5.5]undecane)-2,6-diaminopyridine. The method of the invention is simple and is easy to control; the synthetized macromolecular intumescent flame retardant with phosphorus and nitrogen has better compatibility with the matrix and higher char forming characteristic; by adopting the method, the problem of migration, precipitationor volatilization in the machinings of the flame retardant and the polymer matrix can be solved basically; and the flame retardant does not contain halogen, thus the flame retardant is environmentally friendly and has good application prospect.

The invention provides a lead-carbon super battery anode material which is a graphene/Pb nano composite material. The lead-carbon super battery anode material is prepared by mixing a lead salt solution with a graphite oxide solution, carrying out hydrothermal reaction, and then carrying out macro body freeze drying and burning. The lead-carbon super battery anode material is prepared from 91 to 99.5 percent of lead and 0.5 to 9 percent of graphene. The lead salt solution is prepared by dissolving soluble lead salt into deionized water; the soluble lead salt is one or several of lead-containing nitrate, acetate, carbonate, hydrochloride, sulfate and complex salt. The invention further provides a preparation method of the lead-carbon super battery anode material. The preparation method provided by the invention has the advantages of high efficiency, environmental friendliness, high uniformity and the like; the prepared lead-carbon super battery anode material is high in uniformity, high in stability and wide in application prospect.

The invention belongs to the technical field of beverages, and in particular relates to a slurrying method for fructus cannabis protein slurry. The slurrying method comprises specific slurrying technical steps of poaching, pulping or grinding to produce slurry, filtering and separating slurry residues and the like, particularly, adding the filtered residues into low-temperature alpha-amylase for enzymolysis, carrying out enzymolysis on a large quantity of starch in filtered residues to produce enzymatic hydrolysate containing maltose, glucose and fructus cannabis flavor substances, and mixing the enzymatic hydrolysate with fructus cannabis protein liquor so as to prepare the fructus cannabis albumen slurry. Resources are effectively and fully used; the problem of precipitates in the beverage caused by the starch is solved. According to the slurrying method provided by the invention, the defect of precipitation in a production technology for the fructus cannabis protein beverage can be solved, and various types of protein beverages can prepared by the fructus cannabis albumen slurry obtained by the slurrying method. The fructus cannabis protein slurry is milky-white, smooth, sweet, soft and rich in nutrition.

The invention discloses a kitchen wet tissue complex formulation liquid and a preparation method thereof. The wet tissue complex formulation liquid comprises the following substances by weight percentage: 30-60% of environmental protection solvent, 2-4% of nonionic surfactant, 3-8% of anionic surfactant, 0.5-2% of organosilicon antifoaming agent, 0.5-2% of protection film, 0.05-0.1% of iodine propiolic n-butyl carbamate, 0.05-1% of diazolidinyl urea, 0.05-1% of 1,3 dihydroxytoluene-5,5-dimethyl hydantoin and the balance of RO water. The invention also provides a preparation method of the kitchen wet tissue complex formulation liquid. The kitchen wet tissue complex formulation liquid has the advantages of environmental protection, easy biodegradation, strong cleaning capability, no peculiar smell, little foam, no stimulation and no sticky hand feeling, a protection layer is formed on a hard surface, the kitchen wet tissue complex formulation liquid has antifouling characteristic and is convenient for cleaning at next time.

The invention discloses an environment-friendly TPE material for a new energy electric vehicle charging pile cable and a preparation method thereof. The TPE material is prepared from the following components in parts by mass: 25-40 parts of SEBS, 20-30 parts of polypropylene, 35-45 parts of inorganic matter fire retardant, 5-15 parts of fire retardant synergist, 0.6-1.5 parts of organosilicon micro powder, 0.5-1.5 parts of antioxidant, 6-10 parts of naphthenic oil, 0.6-1.6 parts of anti-ultraviolet agent, 1-3 parts of color master batch and 0.1-0.5 part of processing aid, wherein the inorganic fire retardant needs to be firstly treated by a surface treating agent accounting for 1-2% in part by mass. The preparation method of the cable material comprises the process steps of surface treatment on the inorganic matter fire retardant, cold oil charge on the SEBS, automatic burdening, mixing, fusion, extrusion, pelleting and the like. Compared with the prior art, the TPE material disclosed by the invention has the following characteristics: excellent flame retardation, fatigue durability, artificial weather ageing resistance, ultraviolet resistance and processing property; the extrusion speed can achieve 150-200m/min, the precipitation is avoided, the density is low, the TPE material can be repeatedly processed and used, is environment-friendly and excellent in economy.

The embodiment of the invention provides a charging method for a lithium ion battery, and a charger, and relates to a battery charging technology. The problem that lithium dendritic crystal is precipitated can be solved, so that the safety of the battery is improved, and the service life of the battery is prolonged. The charging method comprises the following steps of: charging, namely charging the lithium ion battery within a preset charging time period at a certain charging rate; discharging, namely discharging the lithium ion battery within a preset discharging time period at a certain charging rate; and circulating the charging step and the discharging step. The embodiment of the invention is applied to charging of the lithium ion battery.

The invention discloses a flame-retardant ageing-resistant sealing ring rubber material which comprises the following raw materials in parts by weight: 80-100 parts of natural rubber, 20-40 parts of butadiene styrene rubber, 10-30 parts of ethylene propylene diene monomer, 10-30 parts of a phosphate modified polyurethane elastomer, 2-4 parts of dicumyl peroxide, 0.5-1 part of sulfur, 1-3 parts of an accelerant DM, 2-4 parts of an accelerant TAIC, 3-8 parts of zinc oxide, 1-3 parts of stearic acid, 6-10 parts of carbon black N660, 5-10 parts of titanium dioxide, 2-5 parts of quartz powder, 10-18 parts of calcite in powder, 6-15 parts of opal powder, 1-4 parts of a silane coupling agent, 2-8 parts of zinc borate, 1-4 parts of melamine, 1-2 parts of an anti-aging agent 4010NA, 2-4 parts of an anti-aging agent MB and 1-3 parts of an anti-aging agent AW. The rubber material disclosed by the invention has good flame-retardant property, ageing resistance and excellent weather resistance.

The invention discloses a flame-retardant thermoplastic rubber material for wires and cables. The flame-retardant thermoplastic rubber material is prepared from the following raw materials in parts by weight: 10-300 parts of EPDM (Ethylene Propylene Diene Methylene), 40-160 parts of polypropylene, 30-100 parts of thermoplastic polyurethane elastomer, 5-15 parts of compatibilizer, 15-40 parts of organophosphorus ester, 5-10 parts of trimethyl phosphate, 5-20 parts of polyphenyl ether, 10-60 parts of inorganic filler, 3-6 parts of silane coupling agent, 0.2-10 parts of crosslinking agent, 1-5 parts of active zinc-oxide powder, 1-3 parts of antioxidant, 1-3 parts of ultraviolet absorbent, 20-100 parts of processing oil and 2-6 parts of lubricant. The preparation method of the organophosphorus ester comprises the following steps of: obtaining propenyl dimethyl phosphate after reaction of phosphorus oxychloride, allyl alcohol and methyl alcohol, carrying out olefin polymerization on the propenyl dimethyl phosphate, and obtaining the organophosphorus ester. The flame-retardant thermoplastic rubber material disclosed by the invention has the advantages of excellent flame retardance, high-temperature resistance and flexibility.

The invention discloses cis-12 hydroxy octadecenoic acid-3-methyl-imidazole hexafluorophosphate ionic liquid and a four-stroke engine lubricating oil composition containing the same, and belongs to the field of lubricating oil production. The lubricating oil composition is mainly mixed by the following raw materials according to the weight ratio: lubricating oil base oil, cis-12 hydroxy octadecenoic acid-3-methyl-imidazole hexafluorophosphate, a viscosity index improver, a dispersing agent, a clearing agent, an oxidation and corrosion inhibitor, a base number reserving agent and an antifoaming agent. Compared with the prior art, the cis-12 hydroxy octadecenoic acid-3-methyl-imidazole hexafluorophosphate ionic liquid solves the problem that various annexing agents are easy to separate out when lubricating oil is placed for a long time, has the characteristics of good usability, environmental protection, energy saving and the like, and has a good application and dissemination valve, and abrasion of an engine can be obviously reduced.

The invention discloses a cymene water-based formula which is prepared from the following raw materials in parts by weight: 0.01-0.1 part of cymene, 1.5-20 parts of a wetting agent, 0-7.0 parts of ethanol and 0.01-1.0 part of a solubilizer. According to the formula, the problem that the cymene tends to be separated out in the formula system is solved. The formula can further serve as a component in a transparent external drug preparation or an external skin preparation and is high in stability.

The invention provides a polyolefin film for the backboard of a photovoltaic cell and a preparation method thereof. The polyolefin film comprises an EVA coating lateral connection layer, which comprises following components in parts by weight: 20 to 40 parts of polypropylene, 50 to 60 parts of polyethylene, 1 to 10 parts of grafting modified polyolefin, 10 to 20 parts of titanium dioxide, 0.5 to 1.5 parts of a light stabilizer, and 0.1 to 1 part of an antioxidant. The preparation method is simple, and a prepared photovoltaic cell backboard has the advantages that the binding force between polyolefin film and EVA is good, the compatibility between a base material and an aid is improved, and the aid will not be precipitated out under hot and wet conditions.

The invention discloses a novel mold structure for preventing materials from stacking at a mold opening. The novel mold structure comprises a mold core and a mold sleeve, wherein the mold sleeve is fixed on a machine head by virtue of a mold sleeve cover, and the extrusion concentricity is adjusted by virtue of a mold sleeve alignment screw; the mold core is fixed on a mold core seat, and the relative position between the mold core and the mold sleeve is adjusted by virtue of a mold core seat bolt; the mold sleeve comprises a mold forming area, a mold sleeve opening chamfer, a mold sleeve tapered area, a mold sleeve step area and a mold deformation area; the mold sleeve tapered area and the mold sleeve step area are arranged on the outer side of the mold sleeve respectively; the tapered mold deformation area is arranged on the inner side of the mold sleeve; the mold sleeve tapered area is connected with the mold forming area in a circular arc transition manner by virtue of the mold sleeve opening chamfer. By virtue of the design of layering and tapering the front section of the mold sleeve, the problem of separation of the materials at the mold opening in the extrusion process in the current cable industry is well solved, the problems that the surface of a cable is poor and unqualified products and waste products are produced due to material separation are solved, the quality of products is guaranteed, the production efficiency is improved, and the cost is reduced.

A process for preparing the stabilizer of PVC includes such steps as esterifying reaction between castor oil and maleic anhydride, dissolving lanthanum oxide in diluted hydrochloric acid, and dripping said esterified substance into said solution. It can improve the machinability and strength of PVC product.

The invention discloses a wear-resistant flame-retardant damping gasket material which is prepared from epoxidized natural rubber, chloroprene rubber, polyisoprene rubber, a phosphate-modified polyurethane elastomer, stearic acid, zinc oxide, an accelerator TT, an accelerator CZ, sulfur, N,N'-m-phenylenedimaleimide, dicumyl peroxide, opal, nano titanium dioxide, nano silicon aluminum tubes, a silane coupling agent, zinc borate, diphenyl phosphate, melamine, an anti-aging agent, an anti-aging aid, glycidyl methacrylate and diglycol dibenzoate. The wear-resistant flame-retardant damping gasket material has the advantages of favorable wear resistance, favorable flame-retardant effect, excellent weather resistance, high radial tensile strength, moderate hardness, favorable elasticity, long service life and low cost.

The invention relates to a reinforced and scratch-resistant polypropylene material and a preparation method thereof, wherein the material is prepared from 70-95 parts of polypropylene, 30-5 parts of SiAlON, 0.1-0.5 part of a coupling agent, 0.1-1 part of a thermal stabilizer, 0-1 part of a lubricant, and 0-0.5 part of white oil, and the weight sum of the polypropylene and the SiAlON is 100 parts. According to the present invention, the one-dimensional beta-SiAlON adopted as the scratch-resistant agent is added to the polypropylene material so as to concurrently provide advantages of material scratch resistance enhancing and material strength increasing and overcome the disadvantage of the material scratch resistance reducing of the traditional reinforcing filling material; and the obtained reinforced and scratch-resistant polypropylene material is used in vehicle interior decoration materials, and does not have disadvantages of scratch-resistant agent precipitation, odor, appearance and the like compared to the traditional scratch-resistant agent adding material.