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Exhausting system for exhausting gaseous substances in blast furnace wall

A discharge system and gaseous substance technology, applied to blast furnaces, blast furnace details, blast furnace parts, etc., can solve problems such as temperature rise of hearth carbon bricks, economic losses of enterprises, threats to blast furnace safety production, etc., to reduce erosion rate and improve The effect of cooling efficiency

Active Publication Date: 2018-06-01
CISDI ENG CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cost of building or overhauling a blast furnace is huge and will significantly affect the profitability of the enterprise
In recent years, hearth burn-through accidents have frequently occurred in domestic and foreign blast furnaces and the temperature of hearth carbon bricks has risen abnormally. Seriously threaten the safe production of the blast furnace and cause huge economic losses to the enterprise

Method used

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  • Exhausting system for exhausting gaseous substances in blast furnace wall
  • Exhausting system for exhausting gaseous substances in blast furnace wall
  • Exhausting system for exhausting gaseous substances in blast furnace wall

Examples

Experimental program
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Effect test

Embodiment 1

[0057] like Figure 4 As shown, the front end of the collection pipeline 1 is shared with other openings on the furnace wall, and extends into the blast furnace wall through other openings to collect gas and accumulated water in the blast furnace wall. Other orifices can be temperature measuring holes for installing refractory material thermocouple 8, or grouting holes, etc., making full use of existing orifices to reduce workload. When the collection pipeline 1 and the thermocouple 8 share the orifice, the cooling equipment 72 provided on the cold surface of the ramming material 73 is a stave, and the outer side of the stave is a furnace shell 71 made of steel plates. The blast furnace hearth is equipped with multiple thermoelectric The couple 8 and the thermocouple 8 pass through the furnace shell 71, the cooling equipment 72, and the ramming material 73 and extend into the refractory brick 74 in sequence. 8, and sequentially pass through the furnace shell 71, cooling equip...

Embodiment 2

[0059] like Figure 5 As shown, the front end of the collection pipeline 1 extends into the blast furnace wall through the reserved hole on the blast furnace wall to collect gas and accumulated water in the blast furnace wall. During installation, if there is no available hole on the furnace wall of the blast furnace, the gas in the furnace wall of the blast furnace is directly drilled and inserted into the collection pipeline 1 to collect the gas in the furnace wall of the blast furnace. The collection pipeline 1 passes through the furnace shell 71 and the cooling equipment 72 to reach the ramming material 73 in sequence, and the collection pipeline 1 is fixed on the blast furnace shell. The rear end of the collection pipeline 1 away from the blast furnace wall is sealed by a sealing flange, and the exhaust mechanism is fixedly connected with the collection pipeline 1 and communicated with the inside of the collection pipeline 1 to realize gas transportation. In this embodim...

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Abstract

The invention relates to the technical field of blast furnace equipment, and particularly relates to an exhausting system for exhausting gaseous substances in a blast furnace wall. The system is connected to the furnace wall and used for exhausting gas or water vapor accumulated in the furnace wall. The exhausting system comprises at least one collecting and exhausting unit, wherein each collecting and exhausting unit is provided with a collecting pipeline; a first end end of each collecting pipeline extends into the blast furnace wall and used for collecting the gas or water vapor accumulatedin the blast furnace wall; a second end of each collecting pipeline communicates with or is connected to an exhausting mechanism. The system has the beneficial effects that the gas or water vapor accumulated in the blast furnace wall in the production process can be timely exhausted, so that the erosion rate of the gas or the water vapor to refractory materials in the furnace wall can be decreased, and as a result, the blast furnace wall cooling efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of blast furnace equipment, in particular to a discharge system for discharging gaseous substances in a blast furnace wall. Background technique [0002] Blast furnace ironmaking is the main process of ironmaking technology. At present, the age of the first generation of domestic large and medium-sized blast furnaces is mostly about 10-15 years, while the age of the first generation of blast furnaces in developed countries such as Germany and Japan is generally about 15-20 years. The cost of building or overhauling a blast furnace is huge and will significantly affect the profitability of the enterprise. In recent years, hearth burn-through accidents have frequently occurred in domestic and foreign blast furnaces and the temperature of hearth carbon bricks has risen abnormally. Seriously threaten the safe production of the blast furnace and cause huge economic losses to the enterprise. [0003] The furnace...

Claims

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Application Information

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IPC IPC(8): C21B7/00
CPCC21B7/002Y02P10/25
Inventor 邹忠平肖学文印民熊拾根王刚董会国张玉栋胡显波余东龙李杰贾娟鱼李少强郭隆
Owner CISDI ENG CO LTD
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