Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B22—CASTING; POWDER METALLURGY
  • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
  • B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
  • B22D1/002—Treatment with gases
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B22—CASTING; POWDER METALLURGY
  • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
  • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
  • B22D11/10—Supplying or treating molten metal
  • B22D11/11—Treating the molten metal

Definitions

• the high cost of casting is a blast furnace - a converter - a continuous casting machine or a shaft furnace - electric furnace - a continuous casting machine.
• the closest in technical essence to the invention is a device - a ladle with sleeves for pouring liquid metal, without stopper and gate, based on the gas pressure in the sleeves.
• the bucket in the bottom has bottom upholes, around which a hermetically gas-tight sleeve is attached, coaxially to the hole.
• US Patent JVs 4,498,661, CL B22D 39/00 02/12/1985 The disadvantages of this device are the lack of refining, evacuation of liquid metal and pouring it, depending on the height of the column of liquid metal in the form (mold).
• the objective of this application is to create a method for the production of steel in ladles without a converter, without an electric furnace and without dependence on scrap metal, as well as continuous casting of steel from ladles, but without stoppers, without gates and without the use of mechanisms.
• the working body will be gas.
• This will be a revolution in metallurgy!
• the steel-combine method and device will allow ; ensure the implementation of the principle of the three “E” (Energy + Economy + Ecology).
• the technical problem in the production of steel in the ladle without the use of a stopper, gate and without electric furnaces, converters formed the basis of the Kobzar-Dernovsky method, or the KomKob process and the steelcomine ComKob created for this device.
• the main working body is gas.
• the SteelKombine ComKob unit consists of a casting ladle for cast iron, or a cast iron ladle, an intermediate ladle for steel or a steel ladle, and a caster mold (mold).
• the method uses the supply of molten iron, (for example.
• the gas cap device also performs the functions of constipation, dispenser and tuyere.
• a gas cap is fixed over the pouring glass in the bottom of the cast iron ladle and through it, together with other tuyeres installed in the casing of the cast iron ladle, liquid cast iron is refined by blowing it with oxygen until steel is obtained from it. Then, the gas pressure in the gas cap cavity is reduced and, releasing the pouring glass from the shut-off refractory ball, and steel is poured into the intermediate steel ladle through the gas hose device.
• liquid steel is additionally refined by blowing it with gas through the lower gas-permeable part of the gas hose device and through its bottom pouring glasses, which enter hermetically into the gas hose devices.
• Gas hoses the upper part of which is mounted on molds (molds), and the lower part is immersed in molten steel and continue to refine it in molds (molds).
• they turn on the refrigerators and turn on the work of the continuous casting machine rollers, changing the gas environment in the “gas hose” from positive to negative values of the gas pressure and begin multi-jet vacuum of the steel during its casting into molds (crystallizers) on the continuous casting machine. (Figure 2.3).
• the process control starting from the supply of molten iron to the exit of high-quality steel casting from the continuous casting machine rolls, is carried out using the remote control at the command post (Fig. 1).
• the technical result from the use of the “ComCob” process allows to produce “ComCob steel-combine” in ladles, from liquid cast iron to steel casting at continuous casting machines, without a converter, without] an electric furnace, without a stopper, without a gate and without mechanisms.
• the working body will be gas.
• the “KomKob” method and the “steel-combine-ComKob” device make it possible to implement the principle of three “E” (Energy + Economy + Ecology)! This is a revolution in metallurgy!
• the device “steel combine KomKob” consists of containers: casting iron ladle, intermediate steel ladle and molds (molds), and they are installed together with a continuous casting machine (Fig. 1).
• the working body of the device is gas and its pressure is regulated by valves.
• Tanks for liquid metal in the ComKob steel combine are interconnected by gas cap and gas hose devices, which make up the gas unit (see FIPS application dated January 18, 2010, Fig. 2,3).
• the cast iron casting ladle has a bottom casting glass, and above it there is a fixed gas cap device with several openings at its base.
• a pipe In the upper part of the “gas hood” there is a pipe through which its cavity is connected by means of a valve with a source of compressed gas (oxygen, argon, etc.) or with the atmosphere.
• a source of compressed gas oxygen, argon, etc.
• the lower part of the pouring cup is included in the “gas hose” device installed on the intermediate steel ladle and is connected to a source of compressed gas and a vacuum pump.
• the lower part of the "gas hose” may be gas permeable.
• the intermediate steel ladle has bottom bottoms. At the inlet and outlet of the pouring glasses, inserts with many holes are installed, which are connected to gas hoses, which are mounted on molds (molds), and communicated through valves with a compressed gas system and vacuum pump (Fig. 2).
• the casting sleeves are buried in liquid steel in the upper part of the molds (molds), while the upper part has heaters, and the lower part has refrigerators associated with casting and caster rolls.
• the complex "steel mill ComKob" and the production of cast iron (for example, the Roelt process) together with the continuous casting machine are controlled at the command post using the remote control (Fig. 1).
• the ComKob steelmineer device consists of a cast iron casting ladle 1 with a fastener having two openings, one for liquid cast iron 2 and the other for flue gases 3.
• cast iron casting ladle 1 there are lances for gases 4 and a bottom casting cup 5, over which a bottom is fixed device "gas hood" 6 with holes 6 'in its base.
• a shut-off refractory ball 7 In the cavity of the "gas hood” is a shut-off refractory ball 7, and in the upper part is the entrance to the pipe 8 with valve 8 '.
• liquid iron flows (for example, using the Roment process) flowing into the cavity of the gas cap device 6 when the bottom casting nozzle 5 is closed with a fireproof ball 7.
• gas hood is the air.
• the gas hood device is immersed outside in molten iron.
• An increase in gas temperature for every 273 degrees increases the increase in gas pressure in the cavity of the cap 6 by about 1 atm.
• the temperature of the located air in the cap 6 is approximately 1500-1600 degrees and is affected by a pressure of more than 5 atm on the shut-off refractory element - the ball. Together with the metallostatic pressure, the gas pressure presses the shut-off ball 7, reliably closing the pouring cup 5.
• Open the valve with compressed oxygen and refine the molten iron by sparging through the openings 6 'of the gas cap 6 and, at the same time, refine it with gas using tuyeres 4 by blowing it through a column of molten iron with a height of N.
• the gas pressure P in the cavity of the gas cap 6 and tuyeres 4 should be greater than the combined metal-static and atmospheric pressure, and is determined by the formula P Ratm. + qH, where q is the density of the liquid meta alla, N - the height of the liquid metal in the cast iron 1.
• the locking ball 7 pops up, opening the pouring cup 5, and then steel is cast from the cast iron ladle 1 into the intermediate steel ladle 9.
• the compressed oxygen valve 12 is opened and used as a stopper, dispenser, lance for refining and improving the quality of steel by blowing it through the lower gas-tight part of the "gas hose" (Fig. 2).
• the gas pressure in the “gas hose” cavity 15 is changed using valve 16.
• the gas pressure is reduced, and to reduce the casting of steel, the gas pressure is increased.
• the lower part of the "gas hose” 15 is immersed in liquid steel in the mold cavity (molds) 14 and the metal temperature is maintained by the heaters 17 of the mold 14.
• the coolers 18 After receiving the desired chemical composition of the steel, the coolers 18 are turned on and the work of the caster rolls 19 is connected, at the same time, the gas medium is changed to " gas hoses ”from positive to negative values the gas pressure and begin multi-jet evacuation of steel during its casting into molds (crystallizers) 14 on the continuous casting machine.
• gas hoses from positive to negative values the gas pressure and begin multi-jet evacuation of steel during its casting into molds (crystallizers) 14 on the continuous casting machine.
• the KomKob method and the ComKob steelmine device allow for the implementation of the principle of three “E” (Energy + Economy + Ecology). This is a revolution in metallurgy!

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Treatment Of Steel In Its Molten State (AREA)

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Citations (7)

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• 2010
  • 2010-02-19 CN CN201080041581.3A patent/CN102686335B/zh not_active Expired - Fee Related
  • 2010-02-19 WO PCT/RU2010/000076 patent/WO2011102748A1/ru active Application Filing

Patent Citations (7)

Non-Patent Citations (1)

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