Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A method for processing dust removal dust from silicomanganese smelting by adopting condensation molding process

A molding process, silicomanganese technology, applied in the field of silicomanganese submerged arc furnace smelting process, can solve the problems of low utilization rate of silicomanganese dust removal, accumulation waste, etc., and achieve the effect of improving utilization rate, reducing coke consumption and reducing production cost

Active Publication Date: 2020-11-06
嘉峪关宏电铁合金有限责任公司
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for processing dust removal ash from silicomanganese smelting by using condensation forming process to solve the problems of low utilization rate and accumulation waste of silicon manganese dust removal ash in the prior art

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 1

[0033] Step 1. Material mixing:

[0034] Mix 10t of silico-manganese dedusting ash and 1.1t of blue charcoal powder;

[0035] Step two, soaking treatment:

[0036] Soak the mixed material obtained in step 1 with submerged arc furnace circulating wastewater for 24 hours, and the detected compressive strength is 996N;

[0037] Step 3, drying in the sun:

[0038] Flatten the mixed material soaked in step 2 to a thickness of 100mm and dry in the air, and collect condensation after the moisture content is less than 10%;

[0039] Step 4, sieving into the furnace:

[0040] After the condensed block obtained in step 3 is sieved by a vibrating sieve with a sieve hole of 15mm, the proportion of the particle size smaller than 5mm is 26%, which basically meets the furnace quality requirements;

[0041] Step 5. Matching manganese materials:

[0042] Adjust the mineral type and control the proportion of the condensed block into the furnace to ensure that the condensed block accounts fo...

Embodiment 2

[0044] Step 1. Material mixing:

[0045] Mix 10t of silico-manganese dedusting ash and 1.36t of blue charcoal powder;

[0046] Step two, soaking treatment:

[0047] Soak the mixed material obtained in step 1 with submerged arc furnace circulating wastewater for 28 hours, and the detected compressive strength is 1190N;

[0048] Step 3, drying in the sun:

[0049] Spread the mixed material soaked in step 2 to a thickness of 150mm and dry in the air, and collect condensation after the moisture content is less than 10%;

[0050] Step 4, sieving into the furnace:

[0051] After the condensed block obtained in step 3 is sieved by a 18mm high-efficiency vibrating sieve with a sieve hole, the proportion of the particle size smaller than 5mm is 22%, which meets the furnace particle size requirement;

[0052] Step 5. Matching manganese materials:

[0053] Adjust the mineral type and control the proportion of condensed lumps into the furnace to ensure that condensed lumps account fo...

Embodiment 3

[0055] Step 1. Material mixing:

[0056] Mix 10t of silico-manganese dedusting ash and 1.76t of blue charcoal powder;

[0057] Step two, soaking treatment:

[0058] Soak the mixed material obtained in step 1 with submerged arc furnace circulating wastewater for 30 hours, and the detected compressive strength is 1158N;

[0059] Step 3, drying in the sun:

[0060] Spread the mixed material soaked in step 2 to a thickness of 120mm and dry in the air, and collect condensation after the moisture content is less than 10%;

[0061] Step 4, sieving into the furnace:

[0062] The condensed block obtained in step 3 is sieved with a vibrating sieve with a sieve hole of 20mm, and the proportion of the particle size smaller than 5mm is 18%, which meets the requirements for the particle size of manganese series materials entering the furnace;

[0063] Step 5. Matching manganese materials:

[0064] Adjust the mineral type and control the proportion of condensed lumps into the furnace to...

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

PropertyMeasurementUnit
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for treating silicon-manganese smelting fly ash by adopting a condensing forming process, and belongs to silicon-manganese submerged-arc furnace smelting processes. The method comprises the following steps of: mixing materials, soaking, drying in air, drying, screening and putting the materials into a furnace. According to the method disclosed by the invention, silicon-manganese fly ash is mixed with semi-coke powder to obtain a mixture, the mixture is soaked by submerged-arc furnace circulating wastewater, is dried in air, and is condensed into condensed blocks, and the condensed blocks are soaked, dried in air, agglomerated, screened and put into the furnace, wherein compressive strength is 700 N or higher, burst is avoided at a temperature of 1100 DEG C,powder content is lower than 20% after screening, and put-in-furnace requirements of the submerged-arc furnace are met, and therefore, the condensed blocks can be put into the furnace to replace partof coke, and therefore, coke consumption is reduced; a manganese-iron ratio of the silicon-manganese fly ash is about 12 times, proportion of low-valence iron ores is increased after re-proportioning, and production cost further can be realized, so that silicon-manganese fly ash can be put into the furnace for being circulated after being simply agglomerated, and a utilization rate of the silicon-manganese fly ash can be increased under a process condition that sintered pellets are absent.

Description

technical field [0001] The invention belongs to the smelting process of silicomanganese submerged arc furnace, and in particular relates to a method for processing the dust removal ash of silicomanganese smelting by adopting condensation forming process. Background technique [0002] The manganese content of silico-manganese dedusting ash is about 18%. In the prior art, sintering and pelletizing processes are usually used to treat dedusting ash. In the absence of sintering and pelletizing production lines, ferroalloy enterprises directly mix raw materials into the furnace, and most of them are removed by dust removal, resulting in a substantial increase in the amount of dust removal. Contents of the invention [0003] The purpose of the present invention is to provide a method for processing the dust removal ash of silicomanganese smelting by adopting the condensation molding process, so as to solve the problems of low utilization rate and accumulation waste of the dust re...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C21B3/04C21B5/00
CPCC21B3/04C21B5/008Y02P10/20Y02W30/50
Inventor 王先武妥建德尧云利白建光蔡丽勇王光胜孙伟
Owner 嘉峪关宏电铁合金有限责任公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com