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101results about How to "Increase Yield %" patented technology

Inclusion control method for pipeline welding wire steel

The invention provides an inclusion control method for pipeline welding wire steel, which comprises the following steps of: (1) converter back deoxidization: performing strong deoxidization on molten steel by adopting aluminum melt on the rear converter after the welding wire steel converter finishes smelting; (2) low-frequency (LF) converter refining: after the oxygen activity of the molten steel of the rear converter is not more than 20*10<-6>, performing LF converter refining treatment on the molten steel; forming slag in 10 to 20 minutes when the LF refining begins, and adding fluorite, wherein the alkalinity of top slag is 1.5 to 4.0, and the content of Al2O3 is 15 to 25 percent; adding titanium and iron at the medium term of refining for further deoxidization, wherein the LF argon blowing time is 25 to 35 minutes, the argon flow is 300 to 400N1/min, and the temperature of the molten steel in the refining process is between 1,550 and 1,630 DEG C; and (3) molten steel argon blowing and stirring: after the oxygen activity of the molten steel is not more than 15*10<-6>, performing weak argon blowing and stirring on the molten steel, wherein the argon flow is 50 to 150N1/min, andthe argon blowing time is 3 to 8 minutes. The method can reduce the size of inclusions, properly control the number of the inclusions and improve the yield of elements such as Ti, B and the like in the steel.
Owner:ANGANG STEEL CO LTD

Making method of yellow rice wine distiller's yeast

The invention relates to fermentation distiller's yeast, in particular to a making method of yellow rice wine distiller's yeast. The making method includes the following steps that (1) raw materials are prepared; (2) a mixture A obtained in the step (1) is kept at the temperature of 75-85 DEG C for 15-20 min, and added with pure rhizopus and yeast after being cooled to 30 DEG C, and a distiller's yeast blank is obtained; (3) the distiller's yeast blank obtained in the step (2) is cultured in a distiller's yeast chamber at the temperature of 26 DEG C for 30 h, the mould grows vigorously, the whole surface of the distiller's yeast blank is full of the mould, and at the time, the distiller's yeast blank is moved out of the distiller's yeast chamber to be baked or aired dry, so that the yellow rice wine distiller's yeast is obtained. The making method of the yellow rice wine distiller's yeast has the advantages that a traditional distiller's yeast making method is combined with the modern technology, the produced yellow rice wine distiller's yeast can be directly used for liquid fermentation wine making and wine making with uncooked materials, the wine yield is improved by 15 percent compared with traditional distiller's yeast, labor is saved by 30 percent, and the economic benefits of a winery are improved.
Owner:FUJIAN SHAOWU NIES BIOLOGICAL TECH

Deposit preform injection moulding device with additional magnetic filed

The invention belongs to the field of metal blank processing, and particularly relates to a deposit preform injection moulding device. The deposit preform injection moulding device with an additional magnetic filed comprises a crucible (1), an atomizer (2), a charging electrode and a depositor (4); the crucible (1) and the atomizer (2) are communicated by a guide pipe; the depositor (4) is arranged below the outlet of the nozzle of the atomizer (2); an atomized grain flying region (5) is arranged between the nozzle of the atomizer (2) and the depositor (4); the charging electrode (3) is arranged at crushing sites where molten metal (6) is separated into the atomized grains (8); and a magnetic field generation device (9) is arranged around the atomized grain flying region (5) and under thecharging electrode. In the invention, the flying paths of the atomized grains can be changed to reduce the taper divergence angle of the atomized grain flying region by using an additional magnetic filed, thereby greatly improving the yield of the molten metal; and in addition, by changing the direction and magnitude of the magnetic filed, the moulding quality of deposit preform can be improved and the production cost of the deposit preform can be reduced, therefore, the economic benefits can be improved.
Owner:BAOSHAN IRON & STEEL CO LTD

Method used for realizing dispersion uniform distribution of bismuth element in alloy steel containing bismuth

The invention discloses a method used for realizing dispersion uniform distribution of bismuth element in alloy steel containing bismuth. The method comprises following steps: 1) molten iron is subjected to desulfuration; 2) converter smelting is performed, aluminum iron alloy and ferro-silicon alloy are added successively after steel tapping, and then a ladle slag modifier is added for ladle slag modification; 3) ladle slag is refined; 4) an alloy feed pipe made of a fire resistant material is inserted into steel liquid level so as to be 100 to 300mm below of the steel liquid level, and metal bismuth element, which possesses a low melting point, and granularity of 3 to 30nm, and is easy to gasify, is added into the molten iron using the alloy feed pipe, wherein adding amount of bismuth element is 0.5kg/t.s or less; 5) argon is taken as a bottom blowing gas of steel ladle, wherein intensity of argon is controlled at 30 to 100l/min.ts; and 6) a continuous casting platform is used for casting, protective atmosphere pouring is adopted for the whole course, and weak electromagnetic stirring is adopted in a secondary cooling section. The method is high in yielding rate; is capable of diffusing bismuth element in steel, so that uniform distribution is realized, excellent steel comprehensive properties are obtained, and properties of every parts of steel are uniform; and can be widely used in the field of molten steel smelting technology.
Owner:武汉钢铁有限公司

Brewing process of sweet yellow wine

The invention discloses a brewing process of sweet yellow wine and particularly relates to a sweet yellow wine brewing process. The process comprises the following steps: sorting, washing rice, soaking, cooking, saccharifying, alcoholizing, compressing wine and the like. In the invention, three types of starters and a segmented starter application brewing process are adopted, the problems that the traditional sweet yellow wine is not thoroughly saccharified and alcoholized so as to cause the characteristics of low wine yield, low alcohol content, pure taste and the like are thoroughly solved. The sweet yellow wine is prepared from the following raw material components in parts by weight: 5000 parts of rough sticky rice, 30 parts of traditional starter, 15 parts of self-made traditional Chinese medicine starter and 9 parts of yellow wine active dry yeast. The production process comprises raw material treatment, cooking, saccharification fermentation, alcoholization fermentation, squeezing ageing and sterilization package. The sweet yellow wine prepared by using the process disclosed by the invention has the characteristics of elegant, light-yellow and transparent color, pure flavor and sweet, tasty, soft and moist taste, and leads a person to endless after tastes. The wine contains various amino acids and various trace elements.
Owner:李忠盘

Method for determining head and tail positions and length of mixed cast blank based on continuous molten steel temperature measurement

The invention relates to a method for determining the head and tail positions and the length of a mixed cast blank based on continuous molten steel temperature measurement. The method includes the following steps that when the residual amount of molten steel in a tundish reaches the allowed lowest slag entrapment liquid level, a nozzle is closed, and a continuous casting machine is shut down; a molten steel dividing agent is added into a crystallizer, another kind of steel is added into the tundish, and the adding position of the molten steel dividing agent is the tail end of the mixed cast blank, namely the position B; the continuous casting machine is started and then is shut down when the liquid level in the crystallizer falls below the normal liquid level by 450-500 mm; when the liquid level in the tundish falls to a cast-on position, the nozzle of the tundish is opened, the continuous casting machine operates at the pull speed of v, and timekeeping is started; the temperature of the molten steel in the tundish is detected through a continuous temperature measurement device, after timekeeping is completed, the record time is t, the position is the head end of the mixed cast blank, namely the position A, the distance between the tail end and the head end of the mixed cast blank is the length (L=v*t) of the mixed cast blank, and the head end A of the mixed cast blank meets the formula A=B+L.
Owner:SHANGHAI MEISHAN IRON & STEEL CO LTD

Traditional Chinese medicine decocting, filtering and cooling integrated equipment

ActiveCN108815876AImprove the extraction rate of traditional Chinese medicineIncrease yieldSolid solvent extractionFiltration circuitsEngineeringLiquid level sensor
The invention discloses traditional Chinese medicine decocting, filtering and cooling integrated equipment and belongs to the technical field of pharmaceutical equipment. The traditional Chinese medicine decocting, filtering and cooling integrated equipment comprises a frame plate. An upper tank body and a water pump are fixed to the frame plate, an annular heating plate is arranged on the side wall of the upper tank body, a sealing plate covers the upper tank body, a filter screen is embedded on the bottom side in the upper tank body, a motor is mounted in the middle of the top of the sealingplate, the output shaft of the motor penetrates the sealing plate and is connected to a rotary shaft, a plurality of traditional Chinese medicine storage tanks are fixed to the rotary shaft, two electric cylinders are also mounted on the top of the frame plate, telescopic rods at the front ends of the electric cylinders penetrate the frame plate and are connected to the sealing plate, a controller is fixed to the side wall of the frame plate, a liquid level sensor is mounted in the upper tank body, and the liquid level sensor, the annular heating plate, the water pump, the electric cylindersand the motor are electrically connected to the controller, separately. Various different traditional Chinese medicines can be separately put in the traditional Chinese medicine storage tanks to be extracted, so that the traditional Chinese medicine and dregs are prevented from being mixed together.
Owner:安徽英泰科技有限公司

Steel ladle wire feeding auxiliary device and steel ladle wire feeding method

The invention provides a steel ladle wire feeding auxiliary device and a steel ladle wire feeding method. The steel ladle wire feeding auxiliary device comprises a steel ladle and a wire-feeder arranged on a working platform. A metal wire lead-out tube of the wire-feeder is connected with the steel ladle wire feeding auxiliary device which is arranged in an ascending and descending manner, metal wires are delivered into the steel ladle wire feeding auxiliary device by the metal wire lead-out tube, and then the metal wires are directly injected into the liquid steel in the steel ladle by the steel ladle wire feeding auxiliary device. The working platform is provided with a ventilating and dedusting device with a vacuumizing unit, and the ventilating and dedusting device is connected with the inner portion of the steel ladle wire feeding auxiliary device and is in pipeline communication with the steel ladle wire feeding auxiliary device. By means of the steel ladle wire feeding auxiliary device and the steel ladle wire feeding method, the metal wires are directly fed into the liquid steel, the phenomena that the wires are melt before entering into the liquid steel, and the wires cannot enter the liquid steel due to the fact that steel slag is too thick are avoided, and the wire yield rate is increased; gases and smoke dust are discharged into the ventilating and dedusting device, and the environmental pollution is reduced; and the metallurgical reaction conditions of the liquid steel in the steel ladle are changed by the vacuumizing unit, part of the metallurgical reaction velocity is increased, the oxidation loss of useful elements is prevented, and the alloy yield rate is increased.
Owner:BAOSHAN IRON & STEEL CO LTD +1
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