CN110616323A - Method for producing alloy blocks and mineral wool from blast furnace cloth bag dust removal ash and fly ash - Google Patents
Method for producing alloy blocks and mineral wool from blast furnace cloth bag dust removal ash and fly ash Download PDFInfo
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- CN110616323A CN110616323A CN201910701900.1A CN201910701900A CN110616323A CN 110616323 A CN110616323 A CN 110616323A CN 201910701900 A CN201910701900 A CN 201910701900A CN 110616323 A CN110616323 A CN 110616323A
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- fly ash
- alloy
- slag
- blast furnace
- cloth bag
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- 239000010881 fly ash Substances 0.000 title claims abstract description 50
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 48
- 239000000956 alloy Substances 0.000 title claims abstract description 48
- 239000004744 fabric Substances 0.000 title claims abstract description 25
- 239000011490 mineral wool Substances 0.000 title claims abstract description 20
- 239000002956 ash Substances 0.000 title claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 7
- 239000000428 dust Substances 0.000 title description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 33
- 238000003723 Smelting Methods 0.000 claims abstract description 23
- 239000002893 slag Substances 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 19
- 239000002994 raw material Substances 0.000 claims abstract description 19
- 229910052742 iron Inorganic materials 0.000 claims abstract description 16
- 239000011230 binding agent Substances 0.000 claims abstract description 15
- 238000007599 discharging Methods 0.000 claims abstract description 12
- 239000000203 mixture Substances 0.000 claims abstract description 12
- 239000008188 pellet Substances 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000005266 casting Methods 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 238000005453 pelletization Methods 0.000 claims abstract description 3
- 239000002245 particle Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims 4
- 239000002910 solid waste Substances 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 238000004064 recycling Methods 0.000 abstract description 5
- 238000012360 testing method Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 229910000863 Ferronickel Inorganic materials 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 229910052593 corundum Inorganic materials 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 description 2
- 229920002261 Corn starch Polymers 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 241001062472 Stokellia anisodon Species 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- UCXOJWUKTTTYFB-UHFFFAOYSA-N antimony;heptahydrate Chemical compound O.O.O.O.O.O.O.[Sb].[Sb] UCXOJWUKTTTYFB-UHFFFAOYSA-N 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000008120 corn starch Substances 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- UGKDIUIOSMUOAW-UHFFFAOYSA-N iron nickel Chemical compound [Fe].[Ni] UGKDIUIOSMUOAW-UHFFFAOYSA-N 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004328 sodium tetraborate Substances 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- 238000003900 soil pollution Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/04—Manufacture of glass fibres or filaments by using centrifugal force, e.g. spinning through radial orifices; Construction of the spinner cups therefor
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C13/00—Fibre or filament compositions
- C03C13/06—Mineral fibres, e.g. slag wool, mineral wool, rock wool
-
- 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
- C22B1/2406—Binding; Briquetting ; Granulating pelletizing
-
- 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
-
- 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
- C22B4/00—Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
- C22B4/06—Alloys
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a method for producing alloy blocks and slag wool by using blast furnace cloth bag fly ash and fly ash, which comprises the following steps: s1, levigating to prepare a warm-mix material with a required proportion for smelting, wherein in the mixed material, 30-85 parts by mass of blast furnace cloth bag dedusting ash; 15-30 parts of fly ash: 1-50 parts of alloy raw material and 0.3-1 part of binder; s2, granulating and pelletizing the mixture; s3, adding the pellet material into an ore-smelting furnace, and heating and reducing the pellet material by using the ore-smelting furnace to generate alloy molten iron and slag; s4, discharging the alloy molten iron and the slag from an iron outlet and a slag outlet of the submerged arc furnace respectively; and S5, discharging the alloy water, casting the alloy water into an alloy block, and throwing the slag into mineral wool after discharging the slag. The method makes full use of heat energy, can realize the utilization of two industrial solid wastes through one-time smelting, and finally obtains two products of alloy blocks and slag wool, so that the recycling has the advantages of low cost and high added value, and has strong practicability in industrial application.
Description
Technical Field
The invention relates to the recycling of industrial solid waste, in particular to a method for producing alloy blocks and mineral wool by using blast furnace cloth bag fly ash and fly ash.
Background
The blast furnace cloth bag dedusting ash and the fly ash belong to industrial solid wastes, and the harm is serious, and the method mainly comprises the following steps: water pollution, atmosphere pollution, soil pollution, land occupation, harm to human health and the like. In addition, the industrial solid waste has the characteristics of high capacity and small using amount. According to statistics, the annual output of domestic fly ash is about 5 hundred million tons, the annual output of blast furnace cloth bag dedusting ash is more than 500 ten thousand tons, and the fly ash has more harmful elements and small recycling value for the blast furnace cloth bag dedusting ash, so that iron and steel enterprises are difficult to process. The fly ash has been developed and comprehensively utilized at home and abroad, and comprises fly ash aerated concrete, concrete hollow blocks, fly ash expanded perlite concrete heat-insulating blocks, fly ash concrete pavement bricks, fly ash ceramsite, concrete products, fly ash concrete light partition boards and the like, but the fly ash is still insufficient for digesting the capacity of the fly ash concrete heat-insulating blocks.
Disclosure of Invention
The invention aims to solve the technical problem of providing a method for producing alloy blocks and slag wool by using blast furnace cloth bag fly ash and fly ash, which fully utilizes heat energy, can realize the utilization of two industrial solid wastes through one-time smelting, and finally obtains two products of the alloy blocks and the slag wool, so that the recycling has the advantages of low cost and high added value, and has strong practicability in industrial application.
In order to solve the technical problems, the invention adopts the following technical means:
a method for producing alloy blocks and slag wool by using blast furnace cloth bag fly ash and fly ash comprises the following steps:
s1, levigating to prepare a warm-mix material with a required proportion for smelting, wherein in the mixed material, 30-85 parts by mass of blast furnace cloth bag dedusting ash; 15-30 parts of fly ash: 1-50 parts of alloy raw material and 0.3-1 part of binder;
s2, granulating and pelletizing the mixture;
s3, adding the pellet material into an ore furnace, and heating and reducing the pellet material by using the ore furnace to generate alloy water and slag;
s4, discharging alloy water and slag from an iron outlet and a slag outlet of the submerged arc furnace respectively;
and S5, discharging the alloy water, casting the alloy water into an alloy block, and throwing the slag into mineral wool after discharging the slag.
Compared with the prior art, the invention adopting the technical scheme has the outstanding characteristics that:
the ore smelting in ore furnace is to smelt ore by utilizing the heat generated by electric arc, and the temperature of the arc zone is more than 3000 ℃. The submerged arc furnace has flexible process, can effectively remove impurities such as sulfur, phosphorus and the like, is easy to control the furnace temperature, has small occupied area of equipment, and is suitable for smelting in the project.
The slag enters the adjustable movable chute through the slag outlet and flows to the four-roller centrifuge to be made into fibers, the fibers are sent into the settling chamber after slag balls are removed through the slag removing roller under the action of negative pressure, a mesh belt conveyor is arranged at the lower part of the settling chamber, an air suction drum is arranged below the mesh belt and is connected with a negative pressure fan through an air pipe and a filter chamber, and the fibers uniformly fall on the mesh belt under the action of the negative pressure, so that the slag wool felt with uniform thickness can be made.
The technical scheme of the invention fully utilizes heat energy, can realize the utilization of two industrial solid wastes by one-time smelting, and finally obtains two products of alloy blocks and slag wool, wherein the value of the alloy blocks is higher than that of the iron blocks, so that the recycling has the advantages of low cost and high added value, and the method has strong practicability in industrial application.
The further preferred technical scheme is as follows:
in the step S1, after the materials are ground, the particle sizes of the blast furnace cloth bag fly ash, the alloy raw material and the binder are 80-130 meshes.
The treated particles have small granularity, are uniformly mixed and are convenient for heat treatment.
In the step S3, the heating and reducing temperature of the ore furnace is controlled at 1400 ℃ to 1600 ℃. The current intensity of the submerged arc furnace is well controlled, so that melting reduction is met, and energy is not wasted.
The alloy raw materials determine the proportion of alloy components to be added according to the proportion of the raw materials of the blast furnace cloth bag fly ash, the fly ash and the binder.
Different alloy blocks are produced, and the component proportion of the alloy raw materials to be added is determined according to the condition of the component proportion of the raw materials of the blast furnace cloth bag fly ash, the fly ash and the binder.
The blast furnace cloth bag dedusting ash, the fly ash, the binder and the alloy raw material are respectively tested.
The metal components of the components are determined by respectively testing the dust removed from the blast furnace cloth bag, the fly ash and the binder, and the component proportion of the alloy to be added is determined according to the requirement of the alloy.
Detailed Description
The present invention will be further described with reference to the following examples.
Through tests, the main mass components of the blast furnace cloth bag dedusting ash in the embodiment of the invention are as follows: TFe: 25-35%; c: 15-25%; zn: 2-25%; SiO 22：10～30%；Al2O3：5～15%；CaO：10～30%；MgO：3～8%；
The main mass components of the fly ash are as follows: TFe: 4-8%; SiO 22：30～70%；Al2O3：20～50%，CaO:2～18%， MgO25 percent, and the balance of trace other components: NaO, K2O, etc.;
independently research and develop the starch binder, its main quality match is, corn starch: 50-70%, 0-2% of potassium pyroantimonate, 4-10% of borax, and solid sodium hydroxide: 20-40%.
The alloy raw materials are laterite-nickel ore powder which is required to be added for smelting nickel iron, wherein the content of Ni in the laterite-nickel ore powder is 1.4-2.6%, and the content of Fe in the laterite-nickel ore powder is 15-30%.
Example 1:
grinding the steel enterprise blast furnace cloth bag fly ash, certain power plant fly ash, alloy raw materials and a binder to the granularity of less than 100 meshes, proportioning according to the mass ratio of 39.5:20:40:0.5, uniformly mixing to obtain a mixture, then putting the mixture into a ball press to press into a pellet material with the granularity of 10mm, adding the pellet into a submerged arc furnace through a feeding system, discharging molten iron produced after smelting in the submerged arc furnace through an iron outlet, casting into an iron block, making slag wool from slag produced after smelting in the submerged arc furnace through wire throwing, wherein the component of the ferronickel alloy block obtained through testing contains FeNi6.9%, and the acidity coefficient of the slag wool reaches 1.65, thereby meeting and being superior to the national standard.
Example 2:
grinding the dust removed by a cloth bag of a certain steel rabbet blast furnace, the fly ash of a certain power plant, an alloy raw material and a binder to the granularity of less than 100 meshes, wherein the raw material components are different from those in case 1 and are uniformly mixed according to a formula; the method comprises the steps of proportioning according to the mass ratio of 49.5:20:30:0.5, uniformly mixing to obtain a mixture, putting the mixture into a ball press machine, pressing into a pellet material with the granularity phi of 10mm, adding the pellet material into an ore-smelting furnace through a feeding system, discharging molten iron generated after smelting in the ore-smelting furnace through an iron outlet, casting into an iron block, throwing slag generated after smelting in the ore-smelting furnace into slag wool, testing to obtain the ferronickel alloy block with the component FeNi5.2%, and enabling the acidity coefficient of the slag wool to reach 1.67.
Example 3:
grinding the dust removed by a cloth bag of a certain steel rabbet blast furnace, the fly ash of a certain power plant, an alloy raw material and a binder to the granularity of less than 100 meshes, wherein the raw material components are different from those in cases 1 and 2 and are uniformly mixed according to a formula; the method comprises the steps of proportioning according to the mass ratio of 44.5:20:35:0.5, uniformly mixing to obtain a mixture, putting the mixture into a ball press machine, pressing into a pellet material with the particle size phi of 10mm, adding the pellet material into an ore-smelting furnace through a feeding system, discharging molten iron generated after smelting in the ore-smelting furnace through an iron outlet, casting into an iron block, throwing slag generated after smelting in the ore-smelting furnace into slag wool, testing to obtain the ferronickel alloy block with the FeNi5.9% content, and enabling the acidity coefficient of the slag wool to reach 1.68.
The above description is only for the purpose of illustrating preferred embodiments of the present invention and is not intended to limit the scope of the present invention, which is defined by the appended claims.
Claims (5)
1. A method for producing alloy blocks and slag wool by using blast furnace cloth bag fly ash and fly ash is characterized by comprising the following steps:
s1, levigating to prepare a warm-mix material with a required proportion for smelting, wherein in the mixed material, 30-85 parts by mass of blast furnace cloth bag dedusting ash; 15-30 parts of fly ash: 1-50 parts of alloy raw material and 0.3-1 part of binder;
s2, granulating and pelletizing the mixture;
s3, adding the pellet material into an ore furnace, and heating and reducing the pellet material by using the ore furnace to generate liquid alloy and slag;
s4, discharging the liquid alloy and the slag from an iron outlet and a slag outlet of the submerged arc furnace respectively;
and S5, discharging the liquid alloy, casting the liquid alloy into an alloy block, and throwing the slag into mineral wool after discharging the slag.
2. The comprehensive utilization method of blast furnace bag fly ash and fly ash according to claim 1, characterized in that: in the step S1, after the materials are ground, the particle sizes of the blast furnace cloth bag fly ash, the alloy raw material and the binder are 80-130 meshes.
3. The comprehensive utilization method of blast furnace bag fly ash and fly ash according to claim 1, characterized in that: in the step S3, the heating and reducing temperature of the ore furnace is controlled at 1400 ℃ to 1600 ℃.
4. The comprehensive utilization method of blast furnace bag fly ash and fly ash according to claim 1, characterized in that: the alloy raw materials determine the proportion of alloy components to be added according to the proportion of the raw materials of the blast furnace cloth bag fly ash, the fly ash and the binder.
5. The comprehensive utilization method of blast furnace bag fly ash and fly ash according to claim 4, characterized in that: the blast furnace cloth bag dedusting ash, the fly ash, the alloy raw material and the binder are respectively tested.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910701900.1A CN110616323A (en) | 2019-07-31 | 2019-07-31 | Method for producing alloy blocks and mineral wool from blast furnace cloth bag dust removal ash and fly ash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910701900.1A CN110616323A (en) | 2019-07-31 | 2019-07-31 | Method for producing alloy blocks and mineral wool from blast furnace cloth bag dust removal ash and fly ash |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110616323A true CN110616323A (en) | 2019-12-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910701900.1A Pending CN110616323A (en) | 2019-07-31 | 2019-07-31 | Method for producing alloy blocks and mineral wool from blast furnace cloth bag dust removal ash and fly ash |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110616323A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115404297A (en) * | 2022-09-22 | 2022-11-29 | 华北理工大学 | Method for co-processing fly ash and blast furnace cloth bag fly ash |
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|---|---|---|---|---|
| CN115404297A (en) * | 2022-09-22 | 2022-11-29 | 华北理工大学 | Method for co-processing fly ash and blast furnace cloth bag fly ash |
| CN115404297B (en) * | 2022-09-22 | 2023-09-19 | 华北理工大学 | Method for cooperatively disposing fly ash and blast furnace cloth bag dust removal ash |
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