CN112725618A - Special binder for converter dedusting cold-pressed pellets - Google Patents
Special binder for converter dedusting cold-pressed pellets Download PDFInfo
- Publication number
- CN112725618A CN112725618A CN202011562297.2A CN202011562297A CN112725618A CN 112725618 A CN112725618 A CN 112725618A CN 202011562297 A CN202011562297 A CN 202011562297A CN 112725618 A CN112725618 A CN 112725618A
- Authority
- CN
- China
- Prior art keywords
- fly ash
- equal
- percent
- binder
- converter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/248—Binding; Briquetting ; Granulating of metal scrap or alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/242—Binding; Briquetting ; Granulating with binders
- C22B1/243—Binding; Briquetting ; Granulating with binders inorganic
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/242—Binding; Briquetting ; Granulating with binders
- C22B1/244—Binding; Briquetting ; Granulating with binders organic
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a special binder for cold-pressed pellets of converter fly ash, and relates to the technical field of resource recycling of converter dry fly ash. The paint comprises the following components in parts by weight: 4 to 6 portions of inorganic binder and 4 to 6 portions of organic binder. The invention does not need to carry out digestion pretreatment on converter fly ash, does not introduce harmful substances such as S, P and the like, ensures that the pellets have certain green pellet strength, can be maintained at normal temperature, can obtain the pellets with the strength meeting the steelmaking requirement without baking, can reasonably utilize basic oxides such as active CaO, MgO and the like in the converter dry fly ash, has low water content, can meet the requirement of a steelworks on water control, changes the converter fly ash into valuable, greatly saves energy consumed by high-temperature baking, and does not cause new energy and pollution problems.
Description
Technical Field
The invention relates to the technical field of recycling of converter dry-method fly ash resources, in particular to a special binder for converter fly ash cold-pressed pellets.
Background
In the converter blowing process, a large amount of high-temperature waste gas can be generated, and the main components are CO and O2、CO2、N2And SO2Wherein the CO content is up to more than 80 percent. Simultaneously contains a great amount of industrial dust, and the dust concentration can reach 150g/Nm3-300g/Nm310 kg-30 kg industrial dust can be generated per ton steel. The converter dust contains more than 50 percent of TFe, the content of calcium oxide is not low, and the converter dust has high utilization value, so the converter dust is reasonably utilizedDust has important significance.
According to the characteristics of high total iron content and many alkaline oxides of converter dry dedusting ash, researchers have the following utilization modes at present: manufacturing hot-pressed blocks, synthesizing oxides of non-normal iron, preparing iron pigments, returning to sintering, producing cold-bonded pellets and the like. The disadvantage of the manufacture of hot briquettes is that the production of hot briquettes must be carried out at high temperature and under sealed conditions, thus requiring high equipment, and the method is expensive, complicated and gradually eliminated. At present, the synthesis of oxides of non-normal iron and the preparation of iron pigments are basically in the research stage, and the actual production is not yet realized.
While the production of the cold-bonded pellets needs the use of a binder, the Chinese patent application No. CN200610031958 provides a binder for the rapid consolidation of the cold-bonded pellets, but the binder contains chloride ions, seriously corrodes equipment and a converter dust removal device, and hinders the popularization and the application of the technology. Patent application No. CN201410712266 provides a pellet binder and a method for producing pellets by using the same, which requires more iron scale to be doped, and gas ash to be added, thereby causing certain difficulties in actual production. Patent application No. CN2017112628871 provides a quick-drying type binder suitable for iron oxide skin cold-pressed pellets and a using method thereof, but the use amount of bentonite is high, so that the taste of the pellets is reduced. Patent application No. CN201911040336 provides a binder for normal-temperature consolidation pellets of converter solid dust waste, and phosphorus which is a negative factor in converter steelmaking is introduced, so that the popularization and application of the technology are hindered. Patent application No. 2018107641993 provides a powdery material environmental protection binder and a preparation method thereof, and the binder has the disadvantages of complicated preparation process, secondary drying and crushing, easy dust emission, high energy consumption and the like, and high cost.
In summary, the problems that the converter fly ash needs to be cleared up, the green pellet strength is low, and drying equipment needs to be equipped are common at present.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the special binder for the cold-pressed pellets of the converter fly ash, which does not need to perform digestion pretreatment on the converter fly ash, does not introduce S, P and other harmful substances, simultaneously ensures that the pellets have certain green pellet strength, can be maintained at normal temperature, can obtain the pellets with the strength meeting the steelmaking requirement without a baking mode, can reasonably utilize the active oxides such as CaO, MgO and the like in the converter dry fly ash, has low water content, can meet the requirement of a steel mill on water control, really changes the converter fly ash into valuables, greatly saves the energy consumed by high-temperature baking, and does not cause new energy and pollution problems.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the paint comprises the following components in parts by weight:
4-6 parts of inorganic binder and 4-6 parts of organic binder;
wherein the inorganic binder is one or a combination of more of cement, lime, sodium carbonate, sodium bicarbonate, slag micropowder, sodium bentonite, steel slag micropowder and water glass;
the organic binder is one or more of xanthan gum, anionic polyacrylamide, sodium carboxymethylcellulose, starch, sodium hydroxypropyl methylcellulose, syrup and waste molasses.
In the above technical solution, a more specific technical solution is: the technical index requirement of the cement is common Portland cement with the mark of above 42.5; the technical index of the lime requires that the CaO content is more than or equal to 95 percent, and the fineness (passing through a 200-mesh sieve) is more than or equal to 95 percent; the technical index requirement of the sodium carbonate is Na2CO3The content is more than or equal to 95 percent, the fineness (passing through a 100-mesh sieve) is more than or equal to 90 percent, and the water content is less than or equal to 5 percent; the technical index requirement of the sodium bicarbonate is NaHCO3The content is more than or equal to 95 percent, the fineness (passing through a 100-mesh sieve) is more than or equal to 90 percent, and the water content is less than or equal to 5 percent; the technical index requirement of the slag micro powder is above S95 level; the technical index requirements of the sodium bentonite are that the content of montmorillonite is 60-85%, the moisture content is less than or equal to 10%, the wet compression strength is more than or equal to 0.2MPa, and Na2The content of O is more than or equal to 1.2 percent; the steel slag micro powder has the technical index requirement that the specific surface area reaches 450m2More than the/kg grade; the technical index requirements of the water glass are as follows: modulus below 2.0, liquid.
Furthermore, the viscosity of the xanthan gum is required to reach more than 2000 cp; the technical index requirement of the anionic polyacrylamide is that the molecular weight is more than 800 ten thousand; the technical index of the sodium carboxymethylcellulose requires that the viscosity (2% aqueous solution) reaches more than 0.5 Pa.s; the technical indexes of the starch are that the PH value (1 percent of aqueous solution) is 6.5-7.5, the fineness (passing through a 100-mesh sieve) is more than or equal to 95 percent, and the water content is less than or equal to 12 percent; the technical index of the sodium hydroxypropyl methylcellulose requires that the viscosity (2% aqueous solution) reaches more than 1.0 Pa.s; the technical indexes of the syrup require that the sugar content is more than or equal to 85 percent and the water content is less than or equal to 15 percent; the technical indexes of the waste molasses include 15-20% of sugar and 50-55% of solid matter.
Further, the method for preparing the converter fly ash into the cold-pressed pellets by adopting the converter fly ash comprises the following steps:
firstly, mixing the inorganic binder in the components with converter fly ash, and uniformly stirring to obtain a mixture; and then adding the organic binder in the components into the mixture, adding water, uniformly stirring, and preparing into pellets.
Furthermore, the total amount of the inorganic binder and the organic binder is 1wt% -10 wt% of the amount of the converter fly ash, and the amount of the water is 4wt% -15 wt% of the amount of the converter fly ash.
Further, when in use, the organic binder in the components is prepared into an aqueous solution; wherein, the concentration of xanthan gum aqueous solution is 0.5% -8%, the concentration of anionic polyacrylamide aqueous solution is 0.1-5%, the concentration of sodium carboxymethylcellulose aqueous solution is 1% -10%, the concentration of starch aqueous solution is 0.5% -15%, the concentration of sodium hydroxypropylmethylcellulose aqueous solution is 1% -8%, the syrup is diluted by 1-10 times, and the waste molasses is diluted by 1-10 times.
Due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. the binder for the cold-pressed pellets of the converter fly ash provided by the invention can be used for effectively improving the green pellet strength of the cold-pressed pellets of the converter fly ash, reducing the damage of the pellets, reducing the pulverization rate of the pellets, improving the pelletizing rate and improving the production efficiency when used for preparing the cold-pressed pellets of the converter fly ash.
2. The invention is a composite binder of organic binder and inorganic binder, and has the advantages of low mixing amount, wide raw material source, friendly production equipment and environment and low cost.
3. The cold-pressed pellets prepared by the method have the strength of more than or equal to 800N in 48 hours, the falling strength of more than or equal to 10 times in 2m, the moisture content of less than or equal to 4 percent, the pellet strength is increased quickly, and drying is not needed.
Detailed Description
The invention is further described in detail below with reference to specific examples:
example 1
100kg of converter fly ash is adopted, and the inorganic binder utilizes sodium bentonite and slag micropowder, wherein the mixing amount of the sodium bentonite is 2 percent, the slag micropowder is S95 grade, and the mixing amount is 3 percent; the organic binder adopts starch, sodium carboxymethylcellulose and syrup, wherein the mass fraction of the starch aqueous solution is 5%, the weight of the starch aqueous solution is 3kg, the mass fraction of the sodium carboxymethylcellulose aqueous solution is 3%, the weight of the sodium carboxymethylcellulose aqueous solution is 2kg, and the syrup (1 kg) is diluted by 5 times and the weight of the syrup is 3 kg. The three organic binders were mixed together and stirred uniformly. Adding an inorganic binder and converter fly ash into an edge runner mill together, stirring for 5 minutes, then adding an organic binder, adding 2kg of water, stirring for 15-20 minutes, and pressing green balls by using a double-roller ball press machine, wherein the internal strength of the green balls is 260N within 1 hour, the strength of the green balls is 500N within 24 hours, the strength of the green balls is 840N within 48 hours, the dropping strength of the green balls at 2m after 48 hours is 12 times, and the water content is 3.8%.
Example 2-Special binder for cold-pressed pellets of converter fly ash
100kg of converter fly ash is adopted, and the inorganic binder utilizes water glass and slag micropowder, wherein the modulus of the water glass is 1.0, the mixing amount is 4 percent, the slag micropowder is S95 grade, and the mixing amount is 6 percent; the organic binder adopts xanthan gum and starch, wherein the mass fraction of a xanthan gum solution is 1%, and the weight of the xanthan gum solution is 2 kg; the weight percentage of the starch water solution is 4 percent, and the weight is 5 kg. The three organic binders are prepared respectively, mixed together and stirred uniformly. Adding the slag micro powder and converter fly ash into an edge runner mill together, stirring for 5 minutes, then adding water glass and an organic binder, adding a proper amount of water according to the dry and wet condition of the ash, stirring for 15-20 minutes, and pressing the green pellets by using a roller ball press, wherein the green pellets have the strength of 280N within 1 hour, the strength of 500N within 24 hours and the strength of 815N within 48 hours, the falling strength of 14 times at 2m after 48 hours and the water content of 3.9 percent.
Example 3
100kg of converter fly ash is adopted, cement and lime are used as inorganic binders, the cement is 42.5 ordinary portland cement, the mixing amount is 3%, and the mixing amount of the lime is 2%; the organic binder adopts hydroxypropyl methyl cellulose sodium and waste molasses, wherein the mass fraction of the hydroxypropyl methyl cellulose sodium solution is 1 percent, and the weight is 4 kg; the waste molasses (2 kg) had a sugar content of 18% and a solid content of 52%, and was diluted to 4kg with water. The two organic binders are prepared respectively, mixed together and stirred uniformly. Adding cement and lime in a dry powder form and converter fly ash into an edge runner mill together, stirring for 5 minutes, then adding an organic binder, adding a proper amount of water according to the dry and wet conditions of the ash, stirring for 15-20 minutes, and pressing balls by using a roller ball press, wherein the internal strength of the green balls within 1 hour is 247N, the internal strength of the green balls within 24 hours reaches 510N, the internal strength of the green balls within 48 hours reaches 840N, the dropping strength of the green balls within 2m after 48 hours is 15 times, and the water content is 3.5%.
Example 4
100kg of converter fly ash is adopted, the inorganic binder utilizes sodium carbonate, lime and steel slag micro powder, the mixing amount of the sodium carbonate is 1 percent, the mixing amount of the lime is 2 percent, and the specific surface area of the steel slag micro powder is 500m2Per kg, the mixing amount is 3 percent; the organic binder adopts starch, wherein the mass fraction of the starch aqueous solution is 10 percent, and the weight of the starch aqueous solution is 10 kg. Sodium bicarbonate was first dissolved in 8kg of water and stirred well, then starch was dissolved in sodium carbonate solution. The lime and steel slag micro powder and converter fly ash are added into an edge runner mill together in a dry powder form and stirred for 5 minutes, then a starch-sodium carbonate mixed solution is added, a proper amount of water is added according to the dry and wet condition of the ash, stirring is carried out for 15-20 minutes, a double-roller ball press machine is utilized for ball pressing, the strength of the green ball is 196N within 1 hour, the strength of the green ball reaches 524N within 24 hours, the strength of the green ball is 857N within 48 hours, the dropping strength of 2m after 48 hours is 14 times, and the water content is 3.3%.
Example 5
100kg of converter fly ash is adopted, and the inorganic binder utilizes sodium bicarbonate, lime and slag micro powder, wherein the mixing amount of the sodium bicarbonate is 0.5 percent, the mixing amount of the lime is 1 percent, the slag micro powder is S95 grade, and the mixing amount is 4 percent; the organic binder adopts anionic polyacrylamide and starch, wherein the mass fraction of the anionic polyacrylamide aqueous solution is 0.5 per mill, and the weight is 4 kg; the weight percentage of the starch aqueous solution is 8 percent, and the weight is 10 kg. The sodium bicarbonate was first dissolved thoroughly in 9kg of water, then the starch was added and stirred well. Adding lime and slag micro powder and converter fly ash into an edge runner mill in a dry powder form, stirring for 5 minutes, then adding a starch-sodium bicarbonate mixed solution and an anionic polyacrylamide solution, adding appropriate amount of water according to the dry and wet condition of the lime, stirring for 15-20 minutes, and pressing balls by using a roller ball press, wherein the strength of the green balls in 1 hour is 189N, the strength of the green balls in 24 hours reaches 505N, the strength of the green balls in 48 hours is 808N, the dropping strength of the green balls in 2m after 48 hours is 13 times, and the water content is 3.9%.
Claims (6)
1. The special binder for cold-pressed pellets of converter fly ash is characterized by comprising the following components in parts by weight:
4-6 parts of inorganic binder and 4-6 parts of organic binder;
wherein the inorganic binder is one or a combination of more of cement, lime, sodium carbonate, sodium bicarbonate, slag micropowder, sodium bentonite, steel slag micropowder and water glass;
the organic binder is one or more of xanthan gum, anionic polyacrylamide, sodium carboxymethylcellulose, starch, sodium hydroxypropyl methylcellulose, syrup and waste molasses.
2. The special binder for cold-pressed pellets of converter fly ash according to claim 1, which is characterized in that:
the cement is ordinary Portland cement with the mark number of above 42.5;
the CaO content of the lime is more than or equal to 95 percent, and the fineness (passing through a 200-mesh sieve) of the lime is more than or equal to 95 percent;
na of the sodium carbonate2CO3The content is more than or equal to 95 percent, the fineness (passing through a 100-mesh sieve) is more than or equal to 90 percent, and the water content is less than or equal to 5 percent;
NaHCO of said sodium bicarbonate3The content is more than or equal to 95 percent, the fineness (passing through a 100-mesh sieve) is more than or equal to 90 percent, and the water content is less than or equal to 5 percent;
the slag micro powder is above S95 level;
the sodium bentonite has 60-85% of montmorillonite content and waterLess than or equal to 10 percent, wet pressure strength more than or equal to 0.2MPa and Na2The content of O is more than or equal to 1.2 percent;
the specific surface area of the steel slag micro powder reaches 450m2More than the/kg grade;
the modulus of the water glass is below 2.0, and the water glass is liquid.
3. The special binder for cold-pressed pellets of converter fly ash according to claim 1 or 2, which is characterized in that:
the viscosity of the xanthan gum reaches more than 2000 cp;
the molecular weight of the anionic polyacrylamide is more than 800 ten thousand;
the viscosity (2% water solution) of the sodium carboxymethyl cellulose reaches more than 0.5 Pa.s;
the pH value (1% aqueous solution) of the starch is 6.5-7.5, the fineness (passing through a 100-mesh sieve) is more than or equal to 95%, and the water content is less than or equal to 12%;
the viscosity (2% water solution) of the hydroxypropyl methyl cellulose sodium reaches more than 1.0 Pa.s;
the sugar content of the syrup is more than or equal to 85 percent, and the water content is less than or equal to 15 percent;
the sugar content of the waste molasses is 15% -20%, and the solid content is 50% -55%.
4. The special binder for cold-pressed pellets of converter fly ash according to claim 3, which is characterized in that: the method for preparing the converter fly ash into the cold-pressed pellets by adopting the method comprises the following steps:
the inorganic binder in the components is mixed with the converter fly ash and stirred uniformly, then the organic binder in the components is added into the mixture, water is added, the mixture is stirred uniformly, and then the mixture is prepared into pellets.
5. The special binder for cold-pressed pellets of converter fly ash according to claim 4, which is characterized in that: the total amount of the inorganic binder and the organic binder is 1-10 wt% of the amount of the converter fly ash, and the amount of the water is 4-15 wt% of the amount of the converter fly ash.
6. The special binder for cold-pressed pellets of converter fly ash according to claim 5, which is characterized in that: when in use, the organic binder in the components is prepared into an aqueous solution; wherein, the concentration of xanthan gum aqueous solution is 0.5% -8%, the concentration of anionic polyacrylamide aqueous solution is 0.1-5%, the concentration of sodium carboxymethylcellulose aqueous solution is 1% -10%, the concentration of starch aqueous solution is 0.5% -15%, the concentration of sodium hydroxypropylmethylcellulose aqueous solution is 1% -8%, the syrup is diluted by 1-10 times, and the waste molasses is diluted by 1-10 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011562297.2A CN112725618A (en) | 2020-12-25 | 2020-12-25 | Special binder for converter dedusting cold-pressed pellets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011562297.2A CN112725618A (en) | 2020-12-25 | 2020-12-25 | Special binder for converter dedusting cold-pressed pellets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112725618A true CN112725618A (en) | 2021-04-30 |
Family
ID=75616525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011562297.2A Pending CN112725618A (en) | 2020-12-25 | 2020-12-25 | Special binder for converter dedusting cold-pressed pellets |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112725618A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114214513A (en) * | 2021-11-26 | 2022-03-22 | 武汉钢铁有限公司 | Preparation method of high-pressure-resistance press ball with metal rate of more than 95% |
| CN114477859A (en) * | 2021-12-10 | 2022-05-13 | 河南北斗众创高新技术研究院有限公司 | Drying-free curing material for recycling industrial flue gas solid waste and application |
| CN114774683A (en) * | 2022-04-21 | 2022-07-22 | 宝武集团环境资源科技有限公司 | System and method for resource utilization of iron-zinc-containing dust mud |
| CN115011794A (en) * | 2022-06-27 | 2022-09-06 | 中南大学 | Binder for forming silica fume, and preparation method and application thereof |
| CN115595404A (en) * | 2022-10-25 | 2023-01-13 | 攀枝花钢城集团有限公司（Cn） | Slagging agent for AOD furnace and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121065A (en) * | 2010-12-14 | 2011-07-13 | 张瑞瑜 | Mineral powder moulding binder |
| CN104046772A (en) * | 2013-03-15 | 2014-09-17 | 上海梅山钢铁股份有限公司 | Method for making cooled agglomerated pellets by use of converter gas dry-method electrostatic precipitator |
| CN104232888A (en) * | 2013-06-21 | 2014-12-24 | 上海梅山钢铁股份有限公司 | Method for preparing cooled agglomerated pellets by using dry method electric fly ash of converter gas |
| CN107460312A (en) * | 2017-09-12 | 2017-12-12 | 重庆大学 | Binding agent and cooled agglomerated pellet for converter dry dedusting ash cooled agglomerated pellet |
| CN108103309A (en) * | 2017-12-19 | 2018-06-01 | 东北大学 | A kind of converter dust-removing ash coal-pressing ball adhesive special |
| CN109957431A (en) * | 2017-12-14 | 2019-07-02 | 宝山钢铁股份有限公司 | A method of iron coke Composite burden is produced using steel rolling sludge |
-
2020
- 2020-12-25 CN CN202011562297.2A patent/CN112725618A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121065A (en) * | 2010-12-14 | 2011-07-13 | 张瑞瑜 | Mineral powder moulding binder |
| CN104046772A (en) * | 2013-03-15 | 2014-09-17 | 上海梅山钢铁股份有限公司 | Method for making cooled agglomerated pellets by use of converter gas dry-method electrostatic precipitator |
| CN104232888A (en) * | 2013-06-21 | 2014-12-24 | 上海梅山钢铁股份有限公司 | Method for preparing cooled agglomerated pellets by using dry method electric fly ash of converter gas |
| CN107460312A (en) * | 2017-09-12 | 2017-12-12 | 重庆大学 | Binding agent and cooled agglomerated pellet for converter dry dedusting ash cooled agglomerated pellet |
| CN109957431A (en) * | 2017-12-14 | 2019-07-02 | 宝山钢铁股份有限公司 | A method of iron coke Composite burden is produced using steel rolling sludge |
| CN108103309A (en) * | 2017-12-19 | 2018-06-01 | 东北大学 | A kind of converter dust-removing ash coal-pressing ball adhesive special |
Non-Patent Citations (1)
| Title |
|---|
| 曹龙等: "高炉瓦斯灰含碳球团粘结剂研究", 《过程工程学报》, vol. 13, no. 01, 15 February 2013 (2013-02-15), pages 164 - 169 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114214513A (en) * | 2021-11-26 | 2022-03-22 | 武汉钢铁有限公司 | Preparation method of high-pressure-resistance press ball with metal rate of more than 95% |
| CN114214513B (en) * | 2021-11-26 | 2023-12-01 | 武汉钢铁有限公司 | Preparation method of high-pressure-resistance pressed ball with metal rate reaching above 95% |
| CN114477859A (en) * | 2021-12-10 | 2022-05-13 | 河南北斗众创高新技术研究院有限公司 | Drying-free curing material for recycling industrial flue gas solid waste and application |
| CN114477859B (en) * | 2021-12-10 | 2022-08-12 | 河南北斗众创高新技术研究院有限公司 | Drying-free curing material for recycling industrial flue gas solid waste and application thereof |
| CN114774683A (en) * | 2022-04-21 | 2022-07-22 | 宝武集团环境资源科技有限公司 | System and method for resource utilization of iron-zinc-containing dust mud |
| CN115011794A (en) * | 2022-06-27 | 2022-09-06 | 中南大学 | Binder for forming silica fume, and preparation method and application thereof |
| CN115595404A (en) * | 2022-10-25 | 2023-01-13 | 攀枝花钢城集团有限公司（Cn） | Slagging agent for AOD furnace and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112725618A (en) | Special binder for converter dedusting cold-pressed pellets | |
| CN102126849B (en) | Dry mixed mortar | |
| CN103408277A (en) | Nickel slag brick and preparation method thereof | |
| CN112266193A (en) | Artificial steel slag aggregate and preparation method and application thereof | |
| CN110015853A (en) | Superhigh tenacity geopolymer and preparation method thereof | |
| CN108218269B (en) | Nickel iron slag cementing material and preparation process thereof | |
| CN101575217B (en) | Method for preparing high sulfur coal gangue sintered perforated brick | |
| CN103073204A (en) | Energy-saving preparation method for calcium oxide | |
| CN111020183A (en) | Binder for metallurgical cold-pressed pellets, cold-pressed pellets containing same and preparation method thereof | |
| CN112694272B (en) | Low-carbon high-strength cementing material prepared from coal gangue power plant solid waste and preparation method thereof | |
| CN113716931A (en) | Non-autoclaved silicomanganese slag aerated concrete thermal insulation building block and preparation method thereof | |
| CN102070322B (en) | Method for preparing high-strength ceramic wall material from papermaking causticized white mud residues | |
| CN113005260A (en) | Converter composite heat generating agent and preparation method thereof | |
| CN107056202A (en) | Carbonization slag cement prepares accelerator and its application process of low-carbon binder materials | |
| CN101624855B (en) | Environmental-friendly cement tile mixed with slag and preparation method thereof | |
| CN106755984A (en) | A kind of method that utilization percolate prepares compound iron ore pellet binder | |
| CN114737055B (en) | High-purity composite binder for metallurgical pellets and application method thereof | |
| CN110563439A (en) | Novel bonding agent for alkaline brick and preparation method of alkaline brick | |
| CN102134165A (en) | Furnace lining of ferrovanadium smelting furnace and preparation method thereof | |
| CN110607438B (en) | Antioxidant calcium adhesive for steel mill fly ash and method for preparing fly ash pellets | |
| CN113816711A (en) | Foamed concrete block and preparation method and application thereof | |
| CN102276175A (en) | Fly ash aluminum extraction residue cement | |
| CN109336433B (en) | Method for producing cementing material by using industrial waste slag | |
| CN112591723A (en) | Method for producing powdered rock phosphate pellets by using low-grade powdered rock phosphate | |
| CN1252393A (en) | High-strength self-ignited sintered flyash brick and its making process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210430 |