33results about How to "Reduce stirring intensity" patented technology

The invention provides a foam concrete mixing method, belonging to the technical field of foam concrete. The method comprises the following steps: generating bubbles: filling foaming liquid with stabilized gas to make bubbles; mixing concrete grout; mixing the bubbles with the concrete grout: continuously pumping the bubbles from the lower part of the concrete grout, and stirring while pumping so as to enable the bubbles to be distributed in the concrete grout. According to the method, the bubbles are pumped from the lower part of the concrete grout, so that the bubbles have the trend of ascending under the action of buoyancy and can be evenly distributed in concrete in the processes of continuous replenishment and stirring; the method can be used for reducing the stirring strength while preventing the bubbles from being mixed with air, thus reducing the air incorporation into the concrete and bubble breakup, enabling the purity of the stabilized gas in the bubbles to be at a higher level, and guaranteeing the quality of the foam concrete.

The invention discloses a low-carbon deep-desulfurization refining method of an LF (ladle refining) furnace, which comprises the following steps of: 1) heating and slagging; 2) power-off forced stirring and deep desulfurization; 3) slag regulation and component adjustment; 4) secondary power-off forced stirring and deep desulfurization; and 5) power transmission temperature regulation. According to the method disclosed by the invention, by optimizing a whole-course argon blowing gas supply model of the LF furnace and dynamically controlling the argon flow in stages, enough argon blowing stirring work is provided to guarantee the desulfurization effect, and violent rolling of steel and slag caused by excessive argon flow in a heating process and consequent contact reaction between steel, slag and graphite electrodes leading to recarburization are avoided; by adopting an intermittent heating mode of alternate power supply and power cut and reallocating the tasks in the power supply period and power-cut period, the stirring intensity is reduced by reducing the argon flow in the power supply period, and recarburization is reduced during desulfurization; and meanwhile, the stirring is enhanced by increasing the argon flow in the power-cut period to finish deep desulfurization. Thus, the deep desulfurization is finished while effectively controlling the recarburization in the whole refining process.

The invention relates to a micro-electrolytic reactor comprising a waste water reservoir with a water inlet and a water outlet, wherein an acid and corrosion resistant coating layer is coated on the inner wall of the reservoir; a grille is arranged at the lower part of the reservoir and used for supporting a microelectrode; an aeration pipe network is arranged at the bottom of the reservoir; the microelectrode is contained in a corrosion resistant mesh bag which is made of filter cloth; 50-200 meshes of holes are uniformly distributed on the corrosion resistant mesh bag to guarantee air and water permeability; and the microelectrode is composed of haydite, silica, titanium dioxide, carbon powder and iron powder and has the total specific gravity of about 1. In the micro-electrolytic reactor, the structure of a conventional waste water reservoir is adopted for solving a microelectrode deposition problem which troubles the waste water treatment industry for a long time, greatly enhancing the efficiency of a micro-electrolytic reaction and prolonging the service life of a microelectrode material in the waste water treatment, and benefiting the replacement of the microelectrode material; in the mean time, the reforming of a traditional waste water reservoir is easy with little input and quick response; and moreover, the stirring intensity during the treatment process can be greatly reduced, and the operation and maintenance costs of equipment are reduced.

The invention relates to the field of konjac planting, in particular to a konjac planting method in a low-altitude high-accumulated-temperature region. The method comprises the following steps of seed selecting, ridging, planting, grass covering, shading, pesticide spraying, seed digging, second-generation seed konjac taking, second-generation seed konjac planting, third-generation seed konjac taking, third-generation seed konjac planting and final konjac finished product obtaining. According to the konjac planting method in the low-altitude high-accumulated-temperature region, konjac can be planted in the low-altitude high-accumulated-temperature region, and the yield of the konjac in the low-altitude high-accumulated-temperature region is greatly improved compared with that of konjac in a high-altitude low-accumulated-temperature region.

The invention relates to a treatment method of konjak inverse growth expansion. The method comprises the steps that 1, flower bud konjak which is healthy and without pests is selected; 2, flower buds on konjak flower bud corms are cut off neatly through a blade, and disinfection and disease-resistant treatment is conducted; 3, the konjak corms of which the flower buds are cut off are planted on well arranged soil ridge surfaces, fertilizer is applied sufficiently, bud mouths are made to incline upwards for planting, and covering is conducted through fine soil; 4, the konjak corms in the third step grow 4-10 lateral buds, the lateral buds grow to 1.8-2.4 cm, a strongest lateral bud is selected, the rest lateral buds are cut off through the blade, disinfection and disease-resistant treatment is conducted on cuts, and covering is conducted through the fine soil; 5, when the reserved bud in the fourth step grow to 5-10 cm, liquid medicine capable of preventing soft rot diseases and southern blight is sprayed on the bud, and the konjak is dug out when the bud withers. The treatment method of the konjak inverse growth expansion aims at converting sexual reproduction into asexual reproduction, the corms can be expanded continuously, and meanwhile seed taros with small corms can be split out.