36results about How to "Shorten hydration time" patented technology

This invention provides an aqueous / t-butanol solvent-system, facile reconstitute, submicron-reconsitiute preliposome-lyophilaye and method of its preparation and use.In one embodiment this entails a modified method for the preparation of a submicron and stable liposome formulation of the non-cross-resistant anthracycline Annamycin is described. The optimal lipid composition was DMPC:DMPG at a 7:3 molar ratio and the optimal lipid:drug weight ratio 50:1. The selected formulation is a preliposome lyophilized powder that contains the phospholipids, Annamycin, and 1.7 mg Tween 20 per mg of Annamycin. The liposome suspension is obtained on the day of use by adding normal saline at 37° C. (1 ml per mg Annamycin) and hand-shaking for one minute. The presence of Tween 20 is essential in shortening the reconstitution step (from >2 hours to 1 minute), avoiding the early formation of free drug crystals, and reducing the median particle size (from 1.5 μm to 0.15-0.20 μm) without destruction of the liposome vesicles. The chemical stability of the preliposome powder at room temperature was >3 months and the chemical and physical stability of the liposome suspension at room temperature >24 hours. The in vitro cytotoxicity of the formulation was equivalent to that prepared by the standard evaporation method. The results of the study indicate that small amounts of surfactant may be used to enhance the reconstitution step and reduce the liposome size of lyophilized liposome formulations of lipophilic drugs.

The invention discloses an air heating furnace cooling water supply system and a control method, and belongs to the field of ferrous metallurgy. The air heating furnace cooling water supply system comprises multiple air heating furnace valves, an intermediate pressure water supply pump set and a secondary booster pump chamber. A switching valve I and a connecting pipe are arranged on a soft waterpipeline output from the secondary booster pump chamber. Communicated soft water pipeline branches enter the air heating furnace valves and a blast-furnace tuyere medium sleeve. A three-way pipe is arranged on soft water pipelines output from the air heating furnace valves, soft water sequentially flows through a water inlet pipe and a water outlet pipe of the three-way pipe, a branch pipe is connected with a drainage pipe of the three-way pipe, and a switching valve III is arranged on the drainage pipe. A switching valve II is arranged on the soft water pipeline connected with the water outlet pipe. According to the air heating furnace cooling water supply system and the control method, the air heating furnace valves and cooling water of blast furnace equipment can be connected together and can operate independently, it is guaranteed that a blast furnace can carry out cooling wall piping when the air heating furnace valves are cooled, washing water can be fast provided during blast furnace cooling wall washing, and even cooling of the air heating furnace valves is not influenced during blast furnace staying maintenance.

The invention discloses a rapeseed oil hydration degumming method. The method comprises the following steps: heating raw oil of rapeseed oil, which is obtained by performing filtration to remove the residual cake meal, to 80-90 DEG C, storing the heated raw oil in an oil storage tank, and keeping the oil temperature at 80-90 DEG C; preparing a saline solution of 10-15 wt%, heating the saline solution to 80-90 DEG C, storing the heated saline solution in a saline solution tank, and keeping the saline solution temperature at 80-90 DEG C; delivering the raw oil in the oil storage tank to a hydration storage tank at the speed of 0.01-0.03m / s through an oil delivery pipe, adding the saline solution in the saline solution tank to the center of the oil delivery pipe which is 4.0-5.0m away from the hydration storage tank, allowing the raw oil and saline solution to be mixed, and enabling the mixture of the raw oil and saline solution to continuously flow into the hydration storage tank, wherein the speed of addition of the saline solution into the oil delivery pipe is 0.01-0.03m / s; and performing centrifugal separation on the mixture of the raw oil and saline solution in the hydration storage tank to remove gum deposits, thereby obtaining hydration-degummed oil. According to the rapeseed oil hydration degumming method, the saline solution is added to the center of the oil delivery pipe, so the saline solution and oil are uniformly mixed in the pipe, thereby greatly enhancing the hydration efficiency, shortening the hydration time, and greatly reducing the content of phospholipid in the hydration-degummed rapeseed oil.

The present application relates to the technical field of building fire protection, in particular, to an intelligent building system. The intelligent building system includes a water storage component, a pipeline component, a spray component, a detection component, a valve component, a pressure component and a controller; wherein, the water storage component includes a main water tank and a plurality of sub-water tanks, and the main water tank is located on the top of the building, Sub-water tanks are distributed on each floor of the building; the main water tank is communicated with the building water supply system; the pipeline assembly includes a first main water pipe and a plurality of sub-water pipes; the first main water pipe is communicated with the main water tank; the first main water pipe includes a plurality of sub-sections , a plurality of sub-sections are connected in turn, and each sub-section corresponds to a floor; a plurality of sub-water pipes are in one-to-one correspondence with a plurality of sub-water tanks, and one end of each sub-water pipe is connected with the sub-section of the same floor, and the other sub-water pipe One end is respectively connected with the corresponding sub-tank; the intelligent building system can not only prevent fires, but also play a role in supply guarantee for fire-fighting water supply.

Disclosed is a biocompatible, hemostatic, cross-linked gelatin composition comprising a biocompatible material comprising cross-linked gelatin and a sufficient amount of wetting agent to permit uniform wetting of the sponge in the presence of an aqueous solution.

The invention relates to a cooling water supply system and a buffer water supply method thereof. The system comprises a fast cooling water tank, fast cooling collecting pipes, a fast cooling water supply pump, a speed regulating device and a fast cooling overflow pipe, wherein the fast cooling water tank is communicated with a laminar flow water tank through a laminar flow overflow pipe; the fast cooling collecting pipes are communicated with the fast cooling water tank through a fast cooling water supply pipe; the fast cooling water supply pump is arranged on the fast cooling water supply pipe; the speed regulating device is arranged between the fast cooling water supply pump and a motor and communicated with a hot rolling production line through a logic circuit; one end of the fast cooling overflow pipe is arranged in the fast cooling water tank, and the other end extends into a water return groove. The method comprises steps as follows: the laminar flow water tank and the fast cooling water tank are filled with cooling water; when the hot rolling production line transmits a flying shear loading signal, the speed regulating device performs speed increase regulation; when the head part of band steel on the hot rolling production line is close to the first fast cooling collecting pipe, a spray nozzle of the fast cooling collecting pipe is opened; when the tail part of the band steel leaves the last fast cooling collecting pipe, the speed reducing regulation is performed. The system and the method can meet requirements of the hot rolling production line for water supply amount and water pressure under the ultra-fast cooling process condition.

The invention belongs to the technical field of building mortar. The invention discloses an anti-crack mortar for repairing pipeline wall grooves, which is prepared from the following raw materials: 0.9-1.5 parts by weight of Portland cement, 0.2-0.6 parts by weight of gypsum powder, 4.2-6.4 parts by weight of medium sand, water 0.8-1.2 parts by weight, 0.16-0.24 parts by weight of fiber, and the following additives by weight percentage are added, water-retaining agent 0.14-0.20wt%, rubber powder 0.14-0.20wt%. The invention solves the problem in the prior art that after repairing the pipeline wall groove, the subsequent fine decoration surface layer is hollowed and cracked to form a dilapidated phase. The anti-cracking mortar used for repairing the pipeline wall groove in the present invention has certain repair adhesion Strength, hydration, and condensation process shrinkage ratio is shorter than the hydration time, so that the wall and wall groove can be repaired without cracking.

The process of the invention relates to the technical field of production of quenching plates in heat treatment furnaces, and is a new process for rapid quenching of quenching plates, which can ensure that the flatness of the plate meets the process requirements, and realizes high-efficiency and continuous quenching. All employees participate in the production rhythm control, and the water pump workers are included in the production rhythm control. The water pump workers determine the number and time of opening the pumps in advance according to the production plan, and increase the adjustment speed by changing the step opening of the valve motor to meet the production needs. Key equipment adjustments In order to best adapt to the production rhythm mode and give full play to the potential of the equipment. It fully complies with the heat treatment and quenching process, can realize high-efficiency quenching production, meets the process requirements, shortens the quenching time and quenching water consumption, and improves the production rhythm and heat treatment furnace output.

The invention provides an energy-saving sheet material for a park road and a preparation method of the energy-saving sheet material, and relates to the field of road sheet materials. The energy-saving sheet material for the park road is prepared from the following raw materials in parts by weight: 14 to 20 parts of quartz sand, 30 to 35 parts of crushed stone, 20 to 30 parts of cement, 20 to 25 parts of waste gypsum boards, 1.2 to 1.5 parts of glass fiber, 10 to 15 parts of building waste plastic, 25 to 30 parts of waste phenolic aldehyde foam, 15 to 21 parts of heat-insulation cotton, 15 to 20 parts of fly ash, 10 to 15 parts of ceramic waste residue, 0.6 to 0.8 part of a retarder, 0.8 to 1.6 parts of a water reducing agent and 3 to 7 parts of water; the preparation method of the energy-saving sheet material for the park road comprises the following steps: weighing the raw materials, stirring, pouring, de-molding, stacking and curing. By adopting the energy-saving sheet material for the park road and the preparation method thereof, provided by the invention, the problem that road sheet materials, which have the advantages of energy saving and environment protection, high compression strength, good durability, good fireproof and anti-freezing properties and good sound insulation and heat insulation effects, are lacked in a current market of sheet materials for the park road is solved.

The invention discloses an improved continuous linseed oil degumming process, which comprises the following steps of firstly adding water and raising the temperature for hydration; then, adding a flocculating agent for flocculation treatment; finally, performing low-temperature flocculation and high-temperature dissolution through a spiral flow passage; finally, performing fine filtering through afilter. The process provided by the invention has the advantages that the defects in the prior art can be overcome; the degumming efficiency of the continuous degumming process is improved.

The invention provides a polycarboxylic acid concrete plasticizer which is formed by copolymerization of three monomers A, B and C and is a polymer with the weight-average molecular weight of 15000-40000, wherein the three monomers are as follows by weight percent: monomer A is 60-70%, monomer B is 20-30% and monomer C is 5-10%; the structure of the monomer A is shown by the following formula, wherein R1 is alkyl group with less than or equal to five carbon atoms or hydrogen atom; m and n are integers within the range of 0-5; A, B, C, D , E, G, H, J and K are respectively integers within the range of 0-30, but not simultaneously 0; the monomer B is the mixture of more than two of acrylic acid, methacrylic acid, maleic acid, maleic anhydride or maleic anhydride salt; and the monomer C is the mixture of more than two of sodium methyl acryl sulfonate, sodium vinylsulphonate, styrene sodium sulfonate or 2-acrylic amide-2-methyl acrylic acid. The concrete plasticizer has the characteristics of good compatibility with various cements, and high water reducing rate and anti-collapse performance. The invention also provides a preparation method of the plasticizer.

The invention relates to a controlled-release hydrated aluminate cement-based early-strength and durable sealing material and an application method thereof. The sealing material of the invention has controllable condensation, is easy to construct, and has sufficient gas generation and expansion. A certain ratio of aluminate-silicate composite cement system is adopted, and an appropriate amount of aluminum powder and resin polymer materials are added. Using the separate grinding technology, the aluminate cement clinker and the resin are firstly ground together, so that the fine resin particles are adsorbed on the surface of the mineral particles of the aluminate cement clinker. After the material is in contact with water during construction, the resin wrapped on the surface of the clinker particles will interact with water to form an interwoven coating film, which can slow release and control the hydration of aluminate minerals, and regulate the formation of products such as ettringite and hydrated aluminate The speed and amount of formation can effectively delay the setting time of the sealing material, facilitate construction, and endow the sealing material with continuous micro-expansion in the sealing hole, provide the material with high early strength and compensate for the hydration shrinkage of the silicate phase, making the sealing material The porous material is designed to last and last.

The invention belongs to the field of electronic processing and in particular relates to a forming agent with the capabilities of shortening hydration time and improving water resistance of a formed foil, a water-resistance formed foil and a forming method of the water-resistance formed foil. The invention provides a novel application of the forming agent prepared by utilizing maleic acid for improving the water resistance of the formed foil and shortening the hydration time and also purposes of increasing the electrostatic conversion rate and the flex conversion rate of the formed foil. The forming agent is prepared from the following raw material in percentage by weight: 0.001-0.004 percent of the maleic acid. According to the forming agent disclosed by the invention, by adding the maleic acid, the purposes of inhibiting generation of gamma'-Al2O3, increasing the production amount of gamma-Al2O3 and improving the water resistance of the formed foil are achieved; compared with the prior art, the forming agent is stable and controllable in production and low in consumption of phosphoric acid.

The invention provides a water supply system for a washing machine, a water supply method and a washing machine. The water supply system includes a water supply pipeline and a pressure water storage tank arranged on the water supply pipeline, a frequency conversion pump, a valve assembly and a control system, wherein: the water supply pipeline is connected to the washing bucket and is used to supply water to the washing bucket; the frequency conversion pump , which is arranged on the water outlet pipe of the water supply pipeline, and is used to provide the water supply lift; the pressure water storage tank is arranged between the frequency conversion pump and the washing tub; the valve assembly includes a first solenoid valve and a second solenoid valve, wherein The first solenoid valve is arranged on the water inlet pipe of the water supply pipeline on the inlet side of the frequency conversion pump, and the second solenoid valve is between the pressure water storage tank and the washing tub; Pressure, the water pressure of the water supply pipeline and the actual water level of the washing bucket control the disconnection of the valve assembly and the speed of the variable frequency pump. The invention replenishes water quickly, and ensures that the washing machine can not stop running water when there is a temporary water shortage or insufficient water supply pressure.

Disclosed is a biocompatible, hemostatic, cross-linked gelatin composition comprising a biocompatible material comprising cross-linked gelatin and a sufficient amount of wetting agent to permit uniform wetting of the sponge in the presence of an aqueous solution.

The invention relates to the field of dental medical treatment and in particular discloses fluorine-strengthened bioactivity mineral powder and a preparation method and an application thereof. The component system of constitution of the mineral powder is as follows: SiO-CaO-Na2O-P2O5-F. The powder comprises the following components in percentages by weight: 40-55% of SiO2, 15-30% of CaO, 15-30% of Na2O, 2-12% of P2O5 and 0.01-6% of F. According to the invention, by taking sodium monofluorophosphate as an importing components of fluorine element and controlling the mass ratio of sodium monofluorophosphate and phosphorus pentoxide added at 0.8-1.2, in a processing course, the loss of a volatile matter phosphorus pentoxide can be effectively reduced at a melting temperature of a material, so that calcium, phosphorus and fluorine in the material better meets a pre-designed proportion. By means of a shock chilling function of water, the amorphous state with more intermediate states is more easily formed, so that more crystal hydroxyapatite is formed during a reaction with water and is of higher activity. In the reaction process of the mineral powder and water, a phosphate component is further generated, thereby forming a better environment for generation of hydroxyapatite.

The invention belongs to the technical field of building mortars, and discloses an anti-cracking mortar for repairing decoration pipeline wall slots. The anti-cracking mortar is prepared from, by weight, 0.9-1.5 parts of Portland cement, 0.2-0.6 part of gypsum powder, 4.2-6.4 parts of medium sands, 0.8-1.2 parts of water and 0.16-0.24 part of fibers, and additives which are 0.14-0.20 wt% of a water retaining agent and 0.14-0.20 wt% of rubber powder are further added. The problem of scars formed by hollowing and cracking of a subsequent fine decoration surface after repairing of pipeline wall slots with mortars in the prior art is solved in the invention. The anti-cracking mortar for repairing decoration pipeline wall slots has a certain repairing bonding strength, has a small shrinkage ratio and a short hydration time in the hydration and condensation process, and realizes the non-cracking of repaired walls and wall slots.

The invention discloses a rain box capable of accurately controlling rainfall and a test method for accurately controlling rainfall of the rain box, the rain box comprises a test box body, the test box body comprises a rain disc, a sample turntable and a water tank, the water tank comprises various functional holes, and circulating water is adopted in a rain test. The waterway principle of the method for accurately controlling the rainfall comprises a ball valve, a water pump, a bypass proportional valve, a flow meter, a precision filter, a pressure sensor, a water inlet electromagnetic valve,a rain tray, a needle head, a liquid level floating ball, an emptying electromagnetic valve, a ventilation electromagnetic valve and an air pressure regulator. The beneficial effects of the inventionare that the rainfall control method achieves the PID automatic and precise regulation and control of the rainfall; the first water supplementing time problem is solved; after water is replenished, the water in the water disc can be locked, and when a sample is replaced or other rainfall tests are set, the test can be directly started without replenishing water again.