Coupling and dispersing device for spraying nanometer powder at the rh downcomer and its application method
A nano-powder and nano-particle technology is applied in the field of spraying nano-powder particle coupling dispersing device at the RH downcomer, which can solve the problems of easy agglomeration of particles, poor uniform dispersion effect of powder particles, and unfavorable mechanical properties of steel, so as to achieve difficult agglomeration. , Guarantee the effect of refined product requirements and simple structure
Active Publication Date: 2016-05-04
BENGANG STEEL PLATES
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Problems solved by technology
However, this kind of device has poor powder dispersion effect, and the particles are easy to agglomerate, which is not conducive to the mechanical properties of steel.
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[0015] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0016] see figure 1 combine figure 2 , a nano-powder particle coupling dispersion device at the RH downcomer, including RH nozzle downcomer 1, RH nozzle downcomer 1 interlayer tube wall is RH nozzle refractory material 3, multiple RH multiphase flows into the hard tube 4 Evenly built and penetrated in the interlayer pipe wall of the RH suction nozzle descending pipe 1, the RH multiphase flow into the hard pipe 1 is connected to the feeding tank 8 through the metal hose 6, and the other end of the RH multiphase flow into the hard pipe 4 is nanoparticles Nozzle 2, the nanoparticles are sprayed int...
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The invention relates to external refining RH of the metallurgical engineering and particularly relates to a coupled dispersing device for spraying nano particles at the position of an RH downcomer and an application method. The coupled dispersing device comprises an RH suctioning nozzle downcomer, wherein the inner part of the pipe wall of an interlayer of the RH suctioning nozzle downcomer is made of RH suctioning nozzle refractory materials; a plurality of RH multi-phase flow guiding-in hard pipes are uniformly arranged inside and are communicated in the pipe wall of the interlayer of the RH suctioning nozzle downcomer; the RH multi-phase flow guiding-in hard pipes are connected to a feeding tank by a metal hose; the other ends of the RH multi-phase flow guiding-in hard pipes are provided with nano-particle spraying holes; the hose is provided with a pressure and flow adjusting valve; the feeding tank is internally provided with a rotary stirrer and a nano-powder spraying tank; and a gas source is introduced into the bottom part of the feeding tank, the nano particles with solids are blown into the RH multi-phase flow guiding-in hard pipes by the hose and then are blown into a steel ladle by the nano-particle spraying holes. The coupled dispersing device and the application method have the advantages that the nano particles are not easily agglomerated, the dispersion is uniform, and the effect is good; and the coupled dispersing device is simple in structure, convenient to operate and low in manufacturing cost, and simultaneously can guarantee the requirements for refining products.
Description
technical field [0001] The invention relates to refining RH outside a metallurgical engineering furnace, in particular to a coupling dispersion device and an application method for spraying nanometer powder particles at the RH downcomer. Background technique [0002] Refining equipment outside the furnace RH is one of the important metallurgical refining equipment. RH has outstanding advantages in refining low carbon steel and ultra-low carbon steel technology, and RH has obvious advantages in circulating vacuum dehydrogenation and denitrogenation technology. RH also has production capacity in the production of desulfurized and dephosphorized steel. The continuous progress of the metallurgical industry has also transformed nano-steel from theory into actual industrial production. [0003] In the RH vacuum refining device, the molten steel flows from the downcomer of the RH suction nozzle to the ladle, and the molten steel from the ladle passes through the RH riser to the v...
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IPC IPC(8): C21C7/10C21C7/00
Inventor 陈立峰高建伟吕焕友王勇李刚周扬曹晓光
Owner BENGANG STEEL PLATES