Blast furnace installation
A blast furnace and equipment technology, applied in blast furnaces, blast furnace details, blast furnace parts, etc., can solve the problems of rising pig iron manufacturing costs, hindering the flow of combustion gas, etc., and achieve the effect of reducing pig iron manufacturing costs.
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no. 1 approach
[0027] according to figure 1 , 2 A first embodiment of the blast furnace plant according to the present invention will be described.
[0028] Such as figure 1 As shown, a raw material quantitative supply device 111 for quantitatively supplying raw materials 1 such as iron ore, limestone, and coal is connected to the upstream side in the conveying direction of a loading conveyor 112 that conveys the raw materials 1 . The downstream side of the loading conveyor 112 in the conveying direction is connected to the top of the furnace top hopper 113 at the top of the blast furnace main body 110 . A hot air conveying device 114 for conveying hot air 101 (1000-1300° C.) is connected to a blowing pipe 115 provided at the tuyere of the blast furnace main body 110 .
[0029] In the middle of the blowing pipe 115, the tip side of the spray gun 116 is inserted and connected. An air blower port of a blower 117 for blowing air 106 is connected to the base end side of the spray gun 116 . ...
no. 2 approach
[0046] according to image 3 , 4. A second embodiment of the blast furnace facility according to the present invention will be described. In addition, for the same parts as those in the above-mentioned embodiment, the same symbols as those used in the description of the above-mentioned embodiment are used, and the descriptions that are the same as those in the above-mentioned embodiment are omitted.
[0047] Such as image 3 As shown, near the base end of the spray gun 116 between the spray gun 116 and the supply tank 120 is connected to the base end side of the dispensing line 223 . The tip side of the dispensing line 223 is connected to one port of the three-way valve 224 . The remaining two ports of the three-way valve 224 are respectively connected to the inlet ports of the filter devices 225A and 225B.
[0048] The outlets of the filter devices 225A and 225B are connected to the suction port of the suction pump 226 . The delivery port of the suction pump 226 is connec...
Embodiment approach
[0065] In addition, in the above-mentioned second embodiment, the carbon monoxide sensor 221 detects the carbon monoxide in the transfer gas 107 to obtain the temperature of the transfer gas 107, but as another embodiment, for example, by detecting the transfer gas 107 Carbon dioxide concentration in gas 107 CO 2 sensor or O 2 The temperature of the transfer gas 107 may also be obtained by replacing the carbon monoxide sensor 221 with a sensor or the like.
[0066]In addition, in the above-mentioned first and second embodiments, the case where the inert gas 102 such as nitrogen gas is supplied from the inert gas supply source 119 has been described, but as another embodiment, for example, it may be discharged from the blast furnace main body 110 blast furnace exhaust gas (about 200°C), or blast furnace exhaust gas (about 100°C) after burning the blast furnace exhaust gas with air as a heat source for the hot blast 101 and using it as the inert gas 102, that is, the The blast...
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Abstract
Description
Claims
Application Information
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