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Zero-emission comprehensive utilizing technology for continuous-casting secondary-cooling vapor and converter vaporizing vapor

A technology of evaporating steam and secondary cooling water, which is applied in the field of steelmaking, and can solve problems such as affecting the environment, not complying with energy saving, emission reduction and environmental protection, and heat energy not being utilized.

Active Publication Date: 2012-07-04
抚顺新钢铁有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The direct release of the above-mentioned continuous casting secondary cooling water steam and converter vaporization steam not only affects the environment, but also the heat energy carried by it is not utilized, which does not meet the requirements of energy saving, emission reduction and environmental protection

Method used

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  • Zero-emission comprehensive utilizing technology for continuous-casting secondary-cooling vapor and converter vaporizing vapor
  • Zero-emission comprehensive utilizing technology for continuous-casting secondary-cooling vapor and converter vaporizing vapor

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Embodiment Construction

[0008] As shown in the figure, ① Heating period: the steam in the secondary cold steam room 1 of the continuous casting machine is transported to the heat preservation water tank 13 by the fan 3 through the valve 14 through the pipeline. The steam in the gas bag 2 used to store the converter vaporization steam is also delivered to the heat preservation water tank 13 through the pipeline, the overpressure relief valve 18 and the valve 17. The steam delivered to the thermal water tank 13 becomes 85-95°C hot water through the cooling and dehydration of the condensation plate 4 and the dehydration net 6 therein. The hot water is transported to the heating network 8 by the heating water pump 19 through the pipeline to provide heat medium for the heating network 8 . Most of the return water of the heat network 8 returns to the heat preservation water tank 13 through the pipeline for recycling, and the remaining part is sent into the fresh water filter pool 9 through the pipeline, an...

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Abstract

The invention discloses a zero-emission comprehensive utilizing technology for continuous-casting secondary-cooling vapor and converter vaporizing vapor. The zero-emission comprehensive utilizing technology for the continuous-casting secondary-cooling vapor and the converter vaporizing vapor comprises the following steps; 1, heating period: cooling the continuous-casting secondary-cooling vapor and the vaporized converter vapor, dewatering the continuous-casting secondary-cooling vapor and the vaporized converter vapor into hot water at 85-95 DEG C, collecting the hot water into a heat-preserving water tank for supplying a circulating heating medium to a heat supply network, and supplementing surplus water in the circulating heating medium into a fresh water system; and 2, non-heating period: cooling the continuous-casting secondary-cooling vapor and the vaporized converter vapor into liquid water, collecting the liquid water into a water storage pool, and supplementing the liquid water into the fresh water system. After adoption of the technology, the continuous-casting secondary-cooling vapor and the vaporized converter vapor are completely recycled, so that the zero emission isrealized; the influence of the emission of the continuous-casting secondary-cooling vapor and the vaporized converter vapor on the environment is avoided, and the energy brought by the emission is comprehensively utilized, so that aims of saving energy, reducing emission and lowering consumption are fulfilled; the economic, environmental and social benefits are outstanding; and the zero-emission comprehensive utilizing technology for the continuous-casting secondary-cooling vapor and the converter vaporizing vapor is worth of wide popularization.

Description

1. Technical field [0001] The invention belongs to the technical field of steelmaking, and in particular relates to a zero-emission comprehensive utilization process of continuous casting secondary cooling steam and converter vaporization steam. 2. Background technology [0002] Converter vaporization flue is one of the main supporting equipment for converter steelmaking. When the equipment is working, it must collect high-temperature flue gas to the maximum extent. The temperature of the flue gas can reach 1500 ° C. After cooling the flue gas, it will generate vaporized steam. The vaporized steam is an important secondary energy source for the converter workshop. Due to the intermittent nature of converter production, the smelting cycle of each furnace is 30 minutes, and the pure oxygen blowing time is 15 minutes. The generation of steam also has the characteristics of intermittent and instantaneous large steam production. During actual operation, there is often the phenome...

Claims

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Application Information

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IPC IPC(8): F27D17/00B22D11/124C21C5/40
CPCY02P10/20Y02P10/25
Inventor 李勇鞠秋奎朱启柱魏志强
Owner 抚顺新钢铁有限责任公司
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