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Hot slag stone materialization system and process

A technology for hot slag and melting subsystem, which is applied in the field of hot slag recycling, can solve the problem of no blast furnace slag stone formation, and achieve the effects of reducing brittleness, reducing supplementary heat, and using less consumption

Active Publication Date: 2017-07-04
SHANGHAI BAOSTEEL ENERGY TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention provides a thermal slag lithification system and process to solve the defects in the prior art that there is no relevant research on blast furnace slag lithification, and to expand the comprehensive utilization field of thermal slag

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  • Hot slag stone materialization system and process

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Embodiment 1

[0046] This embodiment provides a hot slag lithification system, which includes a melting subsystem, a calendering device, a heat preservation and annealing device, a cutting device, and a packaging device according to the process, and a grinding device can be installed between the cutting device and the packaging device. device, or may not be provided with a grinding device.

[0047] The melting subsystem of this embodiment is connected with the calendering device to introduce the melt into the calendering device, a heat preservation and annealing device is arranged after the calendering device, a cutting device is arranged after the heat preservation and annealing device, and a packaging device is arranged after the cutting device; in addition, A grinding device is arranged between the cutting device and the packing device.

[0048]The above-mentioned melting subsystem is used to make the composition, physical properties and chemical properties of the hot slag meet the requi...

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Abstract

The invention discloses a hot slag stone transformation system which mainly comprises a melting sub-system, a calendering device and a heat preservation and annealing device according to production processes, wherein the melting sub-system is used for heating and preserving heat or adding a hardening and tempering material at the same time so that the hot slag meets the requirements of stone production; the calendering device is used for pressing the melt discharged by the melting sub-system into a board; the heat preservation and annealing device comprises a heat preservation device and an annealing device arranged separately or is a heat preservation and annealing integrated device; the heat preservation device is used for realizing thorough crystallization of the board conveyed from the calendering device; and the annealing device is used for controlling the cooling speed, annealing time and cooling temperature interval so as to reduce the brittleness, eliminate internal stress and prevent cracking and deformation of the board. The invention provides a hot slag stone transformation system and technology, thereby providing a new means of hot slag recycling.

Description

technical field [0001] The invention relates to the technical field of recycling hot slag, in particular to a system and process for turning hot slag into stone. Background technique [0002] Ironmaking, steelmaking and ferroalloy production are important process units of steel production. During the production process, a large amount of iron and steel metallurgical slag, such as blast furnace slag, steel slag, and ferroalloy slag, will be produced. The total amount has exceeded 300 million tons. The National Development and Reform Commission and the Ministry of Industry and Information Technology have set target values ​​of 70% and 75% for the utilization rate of metallurgical slag in the relevant plans of the "Twelfth Five-Year Plan". An important task, the development and utilization of steel slag has been placed in an important position in the organization and information platform services for many years. Realizing "zero discharge" of metallurgical slag is a major and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B5/00
Inventor 李军吴伟
Owner SHANGHAI BAOSTEEL ENERGY TECH
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