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Liquid slag wind chilling treating method for improving high titanium type blast furnace slag particle property

A treatment method, a high-titanium type technology, applied in the field of improving the performance of high-titanium type blast furnace slag, can solve the problems of large-scale use of granulated high-titanium type blast furnace slag, and can not be used on a large scale, and achieve important environmental Ecological benefits, savings in construction and use costs, and the effects of eliminating environmental pollution

Inactive Publication Date: 2007-01-24
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Concrete below C20 (including C20) can only be used as wall materials for buildings, and cannot be used as road surfaces and other materials that can withstand a certain weight and pressure. Therefore, the large-scale use of granulated high-titanium blast furnace slag obtained by water quenching It has been greatly restricted and cannot achieve the purpose of large-scale utilization

Method used

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  • Liquid slag wind chilling treating method for improving high titanium type blast furnace slag particle property
  • Liquid slag wind chilling treating method for improving high titanium type blast furnace slag particle property
  • Liquid slag wind chilling treating method for improving high titanium type blast furnace slag particle property

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Experimental program
Comparison scheme
Effect test

specific Embodiment

[0038] Specific embodiment: The technological parameters of partial air quenching experiment of high titanium type blast furnace slag are shown in Table 1.

[0039] Stoves

serial number

before the nozzle

pressure

(MPa)

compressed air

Density

(kg / m3)

average flow

speed(m / s)

average motion

Energy (MPa)

wind nibs

Slag amount

(kg)

When the wind breaks

room(s)

Air-to-slag ratio

(m3 / kg

)

1

0.2

311.23

0.063

4

25

0.0457

2

0.2

311.23

0.063

4

26

0.0475

3

0.2

311.23

0.063

4

24

0.0439

4

0.2

311.23

0.063

4

23

0.0421

5

0.14

2.80

295.5

0.122

3.2

17

0.0369

6

0.12

2.57

281.3

0.102

2.0

...

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Abstract

The liquid slag wind quenching method for improving the performance of high titanium blast furnace slag is to blow liquid slag with compressed air for cooling and crushing so as to obtain granular slag with high strength and proper granularity. The granular slag meets the requirement of artificial sand for concrete and may be used in producing high grade concrete. Utilizing high titanium blast furnace slag as building material in large scale can raise economic benefit and eliminate environmental pollution caused by high titanium blast furnace slag.

Description

technical field [0001] The invention relates to a method for improving the performance of high-titanium blast furnace slag, in particular to a liquid slag air quenching treatment method for improving the performance of high-titanium blast furnace slag. The invention belongs to the technical field of comprehensive utilization of high-titanium slag after blast furnace ironmaking with vanadium-titanium-magnetite. Background technique [0002] In the prior art, for general (titanium dioxide-free) liquid high-temperature blast furnace slag, due to its different uses, there are three main treatment processes as follows: [0003] (1) Rapid cooling process. Generally, it is realized by water quenching. Methods include: furnace water washing slag method, pool method, large sedimentation tank method, RaSa method, etc. The water flushing slag method in front of the furnace is that the hot slag is quenched by high-pressure water and is directly scattered in the slag flow ditch, and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21B3/06C21B3/08
CPCC21B2400/026C21B2400/062C21B2400/072Y02W30/50
Inventor 陈登福温良英白晨光孙善长董凌燕邱贵宝刘清才
Owner CHONGQING UNIV
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