13results about How to "Prevent overproduction" patented technology

The utility model provides a butyraldehyde-butanol mixture preparation system, which comprises a high-pressure reactor, a high-pressure reactor, a high-pressure reactor and a high-pressure reactor, wherein a partition plate is arranged in the middle of the high-pressure reactor; a first reaction zone is arranged above the partition plate, a second reaction zone is arranged below the partition plate, and catalyst inlets are formed in the side walls of the first reaction zone and the second reaction zone; a propylene inlet and a carbon monoxide inlet are formed in the side wall of the first reaction zone; a first bubble crushing unit is arranged in the first reaction area; a mixed gas inlet is formed in the side wall of the second reaction area; and a second bubble crushing unit is arranged in the second reaction area. The system disclosed by the utility model is simple in overall structure, and butyraldehyde-butanol is prepared by arranging the two reaction areas, so that the reaction efficiency is improved; meanwhile, the bubble crushing unit is arranged in the high-pressure reactor, so that the phase boundary mass transfer area of gas and liquid phases can be increased, the gas utilization rate and the reaction efficiency are improved, the energy consumption and the raw material loss are reduced, and the operation process is simplified.

The invention relates to a method for realizing rapid nitrous accumulation through short-cut nitrification and endogenous short-cut denitrification coupled flora, and belongs to the technical field of nitrogen-containing sewage treatment in environmental protection. According to the method disclosed by the invention, short-cut nitrification and endogenous short-cut denitrification coupling is realized, rapid nitrous accumulation can be realized, an organic carbon source does not need to be consumed, and the consumption of substances and energy is reduced. Meanwhile, the method provided by the invention not only can be used for treating the wastewater containing ammonia nitrogen, but also can be used for treating the wastewater containing nitrate nitrogen, solves the problem that nitrate nitrogen is generated due to partial whole-process nitrification in short-cut nitrification, and can ensure high-efficiency and long-term stable accumulation of nitrous; and a quick starting method is provided for a sewage plant adopting a short-cut denitrification related process.

The invention relates to the field of hyaluronic acid products, and particularly discloses a skin non-chronic wound repair dressing, sodium hyaluronates with two molecular weights are selected and matched to obtain composite sodium hyaluronate, and the sodium hyaluronate with the large molecular weight forms a protective layer on a skin wound to provide a relatively closed environment for the skin wound, so that the skin non-chronic wound repair dressing has a good application prospect. The risk that the wound surface is infected by external microorganisms is blocked, sodium hyaluronate with medium molecular weight is dissociated on the surface of the protective layer, a wet environment is provided for the skin wound surface by absorbing moisture of the environment and the skin, the skin cell activity is improved, and the wound surface skin repairing and healing speed is increased.

The invention discloses a WS2 / W composite material, a preparation method thereof and application of the WS2 / W composite material in a sodium-sulfur battery. The preparation method comprises the following steps: uniformly stirring isopropanol and acetone to obtain a mixed solution A; weighing tungsten hexachloride, adding the tungsten hexachloride into the mixed solution A, and uniformly stirring to obtain a mixed solution B; transferring into a reaction kettle, sealing and putting into a drying oven for reaction; after the reaction is finished, carrying out suction filtration and washing on a product by using industrial alcohol, and drying in a vacuum oven to obtain W18O49 powder; the method comprises the following steps: weighing W18O49 powder and sublimed sulfur, respectively and correspondingly placing the W18O49 powder and sublimed sulfur in a first porcelain boat and a second porcelain boat, then placing the second porcelain boat in the first porcelain boat, placing the second porcelain boat in a tubular furnace, introducing argon into a furnace chamber of the tubular furnace, after the pressure of the furnace chamber is increased to 0.2-0.3 MPa, keeping the airtightness of the system, heating to 1100-1300 DEG C at the rate of 20 DEG C / min, keeping the pressure at 0.2-0.3 MPa in the heating process, and keeping the temperature for 2-3 hours; and after the temperature reaches 1100-1300 DEG C, continuously preserving heat for 2 hours, introducing argon, cooling to room temperature, and collecting to obtain WS2 / W powder. The problems of poor conductivity of the sulfur positive electrode, polysulfide shuttle effect and slow reaction kinetics are solved.

This invention discloses a smelting method for large-size Fe-based superalloys for gas turbines, comprising two steps: casting metal raw materials into 710mm electrode rods in a vacuum induction furnace, and then remelting the electrode rods in a vacuum arc remelting furnace to produce 810mm steel ingots. This invention employs a combined vacuum induction melting and vacuum arc remelting (VIM+VAR) process, which effectively controls Ti element burn-off to ensure its content meets standards, and avoids excessive formation of Ti-based carbonitrides, fundamentally mitigating the negative impact on the purity of the molten steel.

A method for microwave-assisted extraction of blue indigo mud from Strobilanthes cusia belongs to the field of natural dye preparation. The method comprises the following steps: 1) mixing fresh Strobilanthes cusia leaves with water according to a specific solid-liquid ratio, and performing microwave-assisted treatment to make the indigo precursor quickly dissolve out; 2) after the extraction liquid is cooled by standing, an alkali agent is added for oxidation precipitation, and after solid-liquid separation and drying, the blue indigo mud with high indigo content is obtained. The indigo yield of the present application can reach 0.32%~0.42%, and the purity of indigo in the product is stable at more than 80%, and the highest can reach 87.49%. The method realizes efficient and rapid extraction of indigo from Strobilanthes cusia, significantly shortens the time of traditional indigo preparation process, and is simple, environment-friendly, stable in product quality, and suitable for industrial production.

The utility model discloses a hair straightening comb steam generator, and aims to provide a hair straightening comb steam generator which is simple in structure, low in noise, capable of directionally spraying steam and preventing excessive steam spraying, and has an anti-scald isolation design. The device comprises an evaporation assembly and a heating plate assembly, the evaporation assembly comprises an evaporation water tank and a water injection pipe, the evaporation water tank comprises a water tank base and a water tank cover, the water tank base is provided with an evaporation groove and an air injection groove, and the evaporation groove and the air injection groove are connected and communicated through a steam port. A first water storage sound insulation cotton block and a second water storage sound insulation cotton block are arranged at the two ends of the evaporation groove respectively, the water injection pipe is arranged at one end of the water tank base and matched with the first water storage sound insulation cotton block, and a plurality of steam columns are arranged at the upper end of the water tank cover and matched with the air injection groove. The heating plate assembly is connected with the lower end face of the water tank base. The steam generator is applied to the technical field of steam generators.

The present invention discloses a multi-system fusion running gear monitoring system, including a running gear monitoring host, a preprocessor, a vehicle body vibration sensor, a frame vibration sensor, a gearbox vibration sensor, an axle box composite sensor, a gearbox composite sensor and a motor composite sensor, wherein the frame vibration sensor, the gearbox vibration sensor, the axle box composite sensor, the gearbox composite sensor and the motor composite sensor are installed on a bogie, the vehicle body vibration sensor is connected to the running gear monitoring host via CAN communication, the preprocessor is connected to other sensors via CAN communication, the preprocessor is connected to the running gear monitoring host via Ethernet, the axle box composite sensor, the gearbox composite sensor and the motor composite sensor include a connector, a nylon hose and a probe, and a vibration reinforcement member is provided on the probe. Compared with the prior art, the present invention has the advantages of complete functions, strong anti-interference ability and high monitoring sensitivity.

The invention discloses a multifunctional hair cosmetic active raw material as well as a preparation method and application thereof. The active raw material is cystine dimaleate amide. The disulfide bond-containing molecule with a symmetric maleic acid structure is used as a sulfydryl reconnection reagent, so that a traditional oxidized sulfydryl reconnection reagent represented by hydrogen peroxide, bromate, iodate and the like is avoided, the content of the disulfide bond in hair is maintained while the hair is shaped, and particularly, after multiple times of perming, the hair is more comfortable to use. Compared with the prior art that a large amount of disulfide bonds are consumed after perming, the supplement and the shaping method are used for perming, so that the hair can be effectively and repeatedly permed according to the willingness of consumers, and the hair styles can be changed for multiple times.

The invention discloses a steel dust sludge filtrate purifying agent and a preparation method and application thereof, and relates to the technical field of steel dust sludge filtrate treatment. The steel dust sludge filtrate purifying agent comprises an agent A and an agent B, the agent A comprises the following chemical raw materials in parts by mass: 10 parts of sodium bicarbonate and 5-30 parts of sodium carbonate; the agent B is prepared from the following chemical raw materials in parts by mass: 10 parts of a slow-release oxidizing agent, 100 to 300 parts of a flocculating agent and 1.5 to 2.5 parts of a scale inhibition dispersing agent; the slow-release oxidizing agent is prepared from the following raw materials in parts by mass: 10 parts of potassium ferrate and 0.5-3 parts of polyvinyl acetate; the flocculating agent is a ternary polymer of dimethyl diallyl ammonium chloride, acrylamide and methacryloyloxyethyl trimethyl ammonium chloride. The iron and steel dust sludge filtrate purifying agent is high in metal ion settling efficiency and high in speed.

The utility model relates to the scrap steel processing field relates to an oil-containing scrap steel cutting pretreatment device, the utility model discloses a feeding conveyor belt, processing box, discharge conveyor belt and drying assembly, the processing box inside left and right alternation is equipped with the inclined guide plate, every group inclined guide plate front and back end is equipped with the baffle, the inclined guide plate bottom is equipped with the mesh, the fixed baffle in processing box, the baffle corresponds fixed in every group inclined guide plate's lower extreme, and the baffle, inclined guide plate and processing box constitute the drainage cavity between, be equipped with the drainage pipe of intercommunication drainage cavity on the processing box, every group baffle lower extreme is equipped with the support, the support lower extreme interval is equipped with the shower nozzle, every group shower nozzle is connected with a group high pressure water pump through the pipeline, high pressure water pump one side is connected with high temperature washing water liquid inlet pipe, the feeding conveyor belt sets up in the feeding end of processing box, the discharge conveyor belt sets up in the discharge end of processing box, drying assembly sets up on the discharge conveyor belt.

The invention discloses a steel dust filtrate purifier and a preparation method and application thereof, and relates to the technical field of steel dust filtrate treatment. The steel dust filtrate purifier of the invention comprises an agent A and an agent B; the agent A comprises the following chemical raw materials by mass: 10 parts of sodium bicarbonate and 5 to 30 parts of sodium carbonate; the agent B comprises the following chemical raw materials by mass: 10 parts of slow-release oxidant, 100 to 300 parts of flocculant, and 1.5 to 2.5 parts of anti-scaling dispersant; the slow-release oxidant comprises the following preparation raw materials by mass: 10 parts of potassium ferrate and 0.5 to 3 parts of polyvinyl acetate; the flocculant is a ternary polymer of dimethyldiallylammonium chloride-acrylamide-methacryloyloxyethyltrimethylammonium chloride. The steel dust filtrate purifier has high metal ion precipitation efficiency and fast speed.

The invention provides a composition containing ergothioneine as well as a preparation method and application of the composition. A first aspect of the present application provides a composition comprising ergothioneine, anthocyanin, and bergamotin. Anthocyanin can effectively prevent excessive generation of melanin and improve existing melanin pigmentation to a certain extent, and meanwhile bergamottin can inhibit melanin generation and improve melanin pigmentation through multiple signal channels. On the basis, the two components are compounded and matched with ergothioneine with certain anti-inflammatory and anti-oxidation effects, and the melanin pigmentation improving effect better than that of single use or reuse of the two components can be achieved.