Waterless stemming and preparation method thereof

A technology of waterless gunpowder and specifications, which is applied in the field of refractory materials, and can solve problems such as yellow chimney iron mouth coming out, serious pollution, burns, etc.

Inactive Publication Date: 2014-06-04
阜康市三工河乡樟兴新型耐火材料厂
View PDF2 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional ironmaking blast furnace taphole mud has the following technical defects: 1. It is not environmentally friendly and pollutes seriously
During use, under the action of the high temperature in front of the furnace, a large number of yellow chimney iron holes emerged, polluting the working environment
2. The content of benzopyrene se

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0090] The raw materials of the anhydrous taphole clay include granular material A, powder material B, and binder C;

[0091] The raw materials, specifications and weight components of pellet A are respectively:

[0092] Metallurgical coke powder, size 0-3mm, 35-45 parts by weight;

[0093] High alumina bauxite, specification 0.01-0.425mm, 1-2 parts by weight; high alumina bauxite, specification 0.426-0.663mm, 3-5 parts by weight;

[0094] Corundum, size 0.634-0.85mm, 4-6 parts by weight; corundum, size 0.86-1mm, 8-10 parts by weight; corundum, size 1.01-1.25mm, 6-8 parts by weight; corundum, size 1.26-2.5 mm, 4-6 parts by weight; corundum, 2.5-3mm in size, 5-8 parts by weight; corundum, 2-3mm in size, 6-8 parts by weight;

[0095] Burnt gemstones, 0.425-0.85mm in size, 10 parts by weight; burnt gemstones, 2-3mm in size, 7-10 parts by weight;

[0096] Silicon carbide, specifications 0.25-3mm, 5-15 parts by weight;

[0097] The raw materials, specifications and weight compo...

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 relates to waterless stemming and a preparation method thereof. The waterless stemming is a fireproof, corrosion-resistant, washing-resistant and wear-resistant material for blocking an iron notch and filling iron notch gaps and cracks having various shapes. The waterless stemming has the advantages that 1, the waterless stemming does not yellow, does not produce black smoke, reduces benzpyrene content to a value less than 0.01% and has good filling performances, contractibility and sintering properties, 2, strength is high and stable blast furnace conditions are kept, 3, iron is produced stably, the iron notch can be opened easily, the pore is not broadened, melt iron flow and flow velocity can be effectively controlled, and strong slag resistance, erosion resistance and washing resistance are obtained, 4, the hearth is protected, crack is not produced in fast heating and high bonding strength of novel and old stemming is high, 5, opening performances are good and a boring process can be carried out easily by a tapping machine drill bit, 6, plasticity is good and clay gun operation and iron notch mud drum formation are convenient, and 7, a certain micro-expansion performance is obtained at a high temperature, gas permeability is good, strength is high and molten iron seepage caused by stemming contraction is avoided.

Description

technical field [0001] The invention relates to the field of anhydrous taphole mud for ironmaking blast furnace tapholes in the metallurgical industry, and is a fire-resistant, erosion-resistant, erosion-resistant and wear-resistant refractory material for sealing tapholes and filling gaps and cracks of various shapes in the tapholes. Background technique [0002] Anhydrous taphole mud is a fire-resistant, erosion-resistant, erosion-resistant, and wear-resistant refractory material used in the metallurgical industry to block the tapholes of ironmaking blast furnaces and fill gaps and cracks of various shapes in the tapholes. With the development of the iron and steel industry, the smelting intensity and smelting coefficient of each ironmaking plant are constantly increasing, and the requirements for the technical standards of ironmaking blast furnace taphole mud are getting higher and higher. The traditional ironmaking blast furnace taphole mud has the following technical de...

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): C04B35/66
Inventor 刘伟张次刚张振风李军民
Owner 阜康市三工河乡樟兴新型耐火材料厂
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