High-titanium blast furnace slag high-strength lightweight aggregate and preparation method thereof

A high-titanium blast furnace slag and lightweight aggregate technology, which is applied in the field of concrete materials, can solve problems such as secondary pollution, low resource utilization, and complex processes, so as to improve the compressive bearing capacity, improve the composition and structure, and simplify the production process Effect

Pending Publication Date: 2021-07-09
成渝钒钛科技有限公司
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The extraction, recovery, and development of titanium in high-titanium blast furnace slag have always been the focus of research. The titanium element is enriched in a certain mineral phase (mainly perovskite) through physical-chemical methods, and then extracted through a combination of separation and smelting. Titanium is a theoretically feasible tech

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High-titanium blast furnace slag high-strength lightweight aggregate and preparation method thereof
  • High-titanium blast furnace slag high-strength lightweight aggregate and preparation method thereof
  • High-titanium blast furnace slag high-strength lightweight aggregate and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0025] A preparation method of high-titanium blast furnace slag high-strength lightweight aggregate, comprising the following steps:

[0026] S1. Prepare blast furnace slag that has been pulverized, as well as silicon-alumina modified components, air-entraining agent and flux;

[0027] S2, drying the material in S1, and then mixing blast furnace slag, silicon-alumina modified component, air-entraining agent and fluxing agent in proportion, and forming into balls to form raw meal balls of 6-10 mm;

[0028] S3. The raw pellets obtained in S2 enter the firing system through the kiln tail of the rotary kiln ceramsite production line for firing treatment to obtain high-titanium blast furnace slag, high-strength light-weight aggregates;

[0029] S4, discharging the high-titanium blast furnace slag, high-strength light-weight aggregate obtained in S3, and cooling treatment.

[0030] Wherein, the firing treatment is to send the dried raw pellets into the rotary kiln, the rotary kiln ...

Example Embodiment

[0033] Example 1. A high-titanium blast-furnace slag, high-strength and light-weight aggregate, each component is calculated by mass percentage, high-titanium blast furnace slag 55%, fly ash 35%, coal powder 5%, feldspar 2% and water glass 3% % Mixed composition.

[0034]

[0035] A preparation method of high-titanium blast furnace slag high-strength lightweight aggregate, comprising the following steps:

[0036] S1. Prepare the blast furnace slag that has been crushed, the specific surface area of ​​the high titanium blast furnace slag is 350m2 / kg, as well as fly ash, coal powder, feldspar and water glass;

[0037] S2, drying the materials in S1, and then mixing blast furnace slag, fly ash, coal powder, feldspar and water glass in proportion to form pellets to form raw meal pellets of 6-10 mm;

[0038] S3. The raw pellets obtained in S2 are passed through the kiln end of the ceramsite production line of the rotary kiln and entered into the firing system for firing treatme...

Example Embodiment

[0040] Example 2. A high-titanium blast furnace slag, high-strength light-weight aggregate, each component is calculated by mass percentage, high-titanium blast furnace slag is 63%, fly ash 27%, coal powder 5%, feldspar 2% and water glass 3% mixed composition.

[0041]

[0042] A preparation method of high-titanium blast furnace slag high-strength lightweight aggregate, comprising the following steps:

[0043] S1. Prepare the blast furnace slag that has been crushed, the specific surface area of ​​the high titanium blast furnace slag is 350m2 / kg, as well as fly ash, coal powder, feldspar and water glass;

[0044]S2, drying the material in S1, and then mixing blast furnace slag, fly ash, pulverized coal, feldspar and water glass in proportion to form a 6-10mm raw meal ball;

[0045] S3. Pass the raw pellets obtained in S2 into the firing system through the kiln tail of the ceramsite production line of the rotary kiln for firing treatment. ~1300℃) with a rotating speed of 2...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a high-titanium blast furnace slag high-strength lightweight aggregate and a preparation method thereof. The high-titanium blast furnace slag high-strength lightweight aggregate is prepared by mixing, by mass, 40%-75% of high-titanium blast furnace slag, 25%-40% of a silicon-aluminum modified component, 3%-8% of an air entraining agent and 2%-12% of a cosolvent. The preparation method comprises the following step of S1, preparing crushed blast furnace slag, a silicon-aluminum modified component, an air entraining agent and a cosolvent. The lightweight aggregate has the beneficial effects that by combining the element composition and structural characteristics of the high-titanium blast furnace slag and optimally designing the mineral composition and structure in the lightweight aggregate finished product, the compressive bearing capacity of the overall structure of the lightweight aggregate is improved, meanwhile, the consumption of the high-titanium blast furnace slag is large, the production process is simple and practical, the comprehensive performance of the obtained lightweight aggregate is remarkably superior to that of ceramsite, the performance requirement of high-strength lightweight aggregate concrete is basically met, and the lightweight aggregate can be used for various large key projects.

Description

technical field [0001] The invention relates to the technical field of concrete materials, in particular to a high-strength light aggregate of high-titanium blast furnace slag and a preparation method thereof. Background technique [0002] The light weight and high strength of high-strength lightweight aggregate concrete are not only conducive to reducing the weight of the structure, reducing the structural section, and reducing the cost of the project, but also conducive to the improvement of the anti-seismic and disaster prevention capabilities of structural engineering and the extension of service life. Large-scale engineering constructions such as high-rise buildings and super-long-span bridges provide new materials with significant technical, economic and social values. In our country, the high-strength and high-performance lightweight aggregate, which is the core material of high-strength lightweight aggregate concrete, still faces the dilemma of uneven quality and sho...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C04B38/06C04B18/02C04B33/13C04B33/132
CPCC04B38/068C04B33/1328C04B33/13C04B18/027C04B2235/3472C04B2235/3481C04B2235/3418C04B2235/422C04B2235/656C04B2235/6567C04B2235/77C04B2235/96Y02P40/60
Inventor 宋进田通强陈仁宏牟小海王占熬杨雪峰
Owner 成渝钒钛科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap