CN107163874A - It is a kind of for adhesive of blast furnace dedusting ash cold compaction ball and preparation method thereof - Google Patents
It is a kind of for adhesive of blast furnace dedusting ash cold compaction ball and preparation method thereof Download PDFInfo
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- 239000000853 adhesive Substances 0.000 title claims abstract description 17
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 17
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 238000005056 compaction Methods 0.000 title claims 5
- 229920002472 Starch Polymers 0.000 claims abstract description 35
- 235000019698 starch Nutrition 0.000 claims abstract description 35
- 239000008107 starch Substances 0.000 claims abstract description 35
- 239000004382 Amylase Substances 0.000 claims abstract description 28
- 102000013142 Amylases Human genes 0.000 claims abstract description 28
- 108010065511 Amylases Proteins 0.000 claims abstract description 28
- 235000019418 amylase Nutrition 0.000 claims abstract description 28
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000005011 phenolic resin Substances 0.000 claims abstract description 17
- 229920001568 phenolic resin Polymers 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- VTIIJXUACCWYHX-UHFFFAOYSA-L disodium;carboxylatooxy carbonate Chemical compound [Na+].[Na+].[O-]C(=O)OOC([O-])=O VTIIJXUACCWYHX-UHFFFAOYSA-L 0.000 claims abstract description 16
- 229940045872 sodium percarbonate Drugs 0.000 claims abstract description 16
- 229920002261 Corn starch Polymers 0.000 claims abstract description 15
- 239000008120 corn starch Substances 0.000 claims abstract description 15
- 229940099112 cornstarch Drugs 0.000 claims abstract description 15
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims description 4
- 238000013019 agitation Methods 0.000 claims 1
- 238000009413 insulation Methods 0.000 claims 1
- 229940100486 rice starch Drugs 0.000 claims 1
- 239000002002 slurry Substances 0.000 abstract description 28
- 239000000428 dust Substances 0.000 abstract description 17
- 238000003756 stirring Methods 0.000 abstract description 17
- 239000011230 binding agent Substances 0.000 abstract description 15
- 238000003825 pressing Methods 0.000 abstract description 5
- 102000004190 Enzymes Human genes 0.000 abstract 1
- 108090000790 Enzymes Proteins 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 239000008188 pellet Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 3
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- 238000007792 addition Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 229920000620 organic polymer Polymers 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- PQUXFUBNSYCQAL-UHFFFAOYSA-N 1-(2,3-difluorophenyl)ethanone Chemical compound CC(=O)C1=CC=CC(F)=C1F PQUXFUBNSYCQAL-UHFFFAOYSA-N 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229940047670 sodium acrylate Drugs 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J103/00—Adhesives based on starch, amylose or amylopectin or on their derivatives or degradation products
- C09J103/02—Starch; Degradation products thereof, e.g. dextrin
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
Abstract
本发明涉及一种用于高炉除尘灰冷压制球的粘合剂及其制备方法，本发明的目的是解决现有的有机高分子粘合材料成本高、固含量低以及无机粘合材料粘结强度低、加入量大的技术问题；本发明的技术方案是：一种用于高炉除尘灰冷压制球的粘合剂，由以下重量份的原料组成，玉米淀粉300份，水700份，淀粉酶1～5份，过碳酸钠1～6份，酚醛树脂10～20份。一种用于高炉除尘灰冷压制球的粘合剂的制备方法，取玉米淀粉加水中制成淀粉浆料；向淀粉浆料中加浓度为5％的淀粉酶溶液，搅拌然后加热到85‑95℃，保温反应40分钟；向淀粉浆料中加入1～6重量份的过碳酸钠继续反应10分钟，再加入10～20重量份的酚醛树脂搅拌20分钟，即制得用于高炉除尘灰冷压制球的粘合剂。The invention relates to an adhesive used for cold-pressing balls of blast furnace dedusting ash and a preparation method thereof. The technical problem of low strength and large amount of addition; the technical solution of the present invention is: a kind of binder for blast furnace dust cold-pressed balls, which consists of the following raw materials in parts by weight: 300 parts of cornstarch, 700 parts of water, starch 1-5 parts of enzyme, 1-6 parts of sodium percarbonate, 10-20 parts of phenolic resin. A preparation method for an adhesive used for cold-pressing balls of blast furnace dedusting dust, taking cornstarch and adding water to make starch slurry; adding amylase solution with a concentration of 5% to the starch slurry, stirring and then heating to 85- 95°C, keep warm for 40 minutes; add 1 to 6 parts by weight of sodium percarbonate to the starch slurry and continue to react for 10 minutes, then add 10 to 20 parts by weight of phenolic resin and stir for 20 minutes to obtain ash for blast furnace dust removal Binder for cold pressed balls.
Description
技术领域technical field
本发明涉及一种用于高炉除尘灰冷压制球的粘合剂及其制备方法。The invention relates to a binder for cold-pressing balls of blast furnace dedusting ash and a preparation method thereof.
背景技术Background technique
目前，随着我国钢铁工业的迅速发展，钢铁产量已居世界第一，但是随着钢铁生产过程中产生的“三废”问题也比较严重，其中高炉废渣除尘灰就占用很大比例。一般每生产一吨钢就会产生约20-60kg的高炉除尘灰。炼钢高炉除尘灰产量大，不回收处理就会污染环境，或占用大量稀缺土地面积，因此，必须对高炉除尘灰回收利用。目前国内一般采用各种粘合材料对除尘灰进行冷压制球，然后混入烧结矿或球团矿配料中进行二次回收利用。在冷压制球生产中现在还存在许多问题，主要是现有粘合材料的性能和成本还不能满足钢铁企业的回收除尘灰的综合要求，目前主要使用的粘合材料主要有聚乙烯醇、聚丙烯酸钠和有机树脂等有机高分子合成材料，存在成本高，固含量低；有的采用膨润土、硅酸钠、水泥、氯化镁等无机材料，存在粘结强度低，加入量大，降低了制成除尘灰球中的含铁量，带来了炼钢生产中的除渣问题。At present, with the rapid development of my country's iron and steel industry, iron and steel production ranks first in the world, but with the "three wastes" problem in the iron and steel production process is also more serious, of which blast furnace waste slag dust removal occupies a large proportion. Generally, about 20-60kg of blast furnace dust will be produced for every ton of steel produced. Steelmaking blast furnace ash has a large output, and if it is not recycled, it will pollute the environment or occupy a large amount of scarce land area. Therefore, it is necessary to recycle the blast furnace ash. At present, various bonding materials are generally used in China to cold-press the dedusting ash into pellets, and then mix them into sinter or pellet ingredients for secondary recycling. There are still many problems in the production of cold-pressed balls. The main reason is that the performance and cost of the existing adhesive materials cannot meet the comprehensive requirements of iron and steel enterprises for recycling dust and dust. Currently, the main adhesive materials used are polyvinyl alcohol, poly Organic polymer synthetic materials such as sodium acrylate and organic resin have high cost and low solid content; some use inorganic materials such as bentonite, sodium silicate, cement, and magnesium chloride, which have low bonding strength and large additions, which reduces the production cost. The iron content in dust removal ash balls has brought about the problem of slag removal in steelmaking production.
发明内容Contents of the invention
本发明的目的是解决现有的有机高分子粘合材料成本高、固含量低以及无机粘合材料粘结强度低、加入量大的技术问题，提供一种用于高炉除尘灰冷压制球的粘合剂及其制备方法。The purpose of the present invention is to solve the technical problems of high cost, low solid content, low bonding strength and large addition amount of existing organic polymer binding materials, and to provide a cold-pressed pellet for blast furnace dust removal Adhesives and methods for their preparation.
为解决上述技术问题，本发明采用的技术方案是：一种用于高炉除尘灰冷压制球的粘合剂，由以下重量份的原料组成，玉米淀粉300份，水700份，淀粉酶1～5份，过碳酸钠1～6份，酚醛树脂10～20份。In order to solve the above-mentioned technical problems, the technical scheme adopted in the present invention is: a kind of binder for blast furnace dedusting cold-pressed ball, is made up of the raw material of following parts by weight, cornstarch 300 parts, water 700 parts, amylase 1～ 5 parts, 1-6 parts of sodium percarbonate, 10-20 parts of phenolic resin.
进一步地，一种用于高炉除尘灰冷压制球的粘合剂，由以下重量份的原料组成，玉米淀粉300份，水700份，淀粉酶3份，过碳酸钠3份，酚醛树脂15份。Further, a binder for cold-pressed balls of blast furnace dedusting ash is composed of the following raw materials in parts by weight: 300 parts of cornstarch, 700 parts of water, 3 parts of amylase, 3 parts of sodium percarbonate, and 15 parts of phenolic resin .
一种用于高炉除尘灰冷压制球的粘合剂的制备方法，包括如下步骤：A kind of preparation method of the binder that is used for blast furnace dedusting ash cold-pressed ball, comprises the steps:
1)淀粉浆料的配制：取重量份为300份的玉米淀粉，在搅拌条件下加入重量份为700份的水中制成淀粉浆料；1) Preparation of starch slurry: take 300 parts by weight of corn starch, and add 700 parts by weight of water under stirring conditions to make starch slurry;
2)取重量份为1-5份的淀粉酶配制成浓度为5％的淀粉酶溶液，向淀粉浆料中加入配制好的浓度为5％的淀粉酶溶液，搅拌20分钟；然后将淀粉浆料加热到85-95℃，保温反应40分钟；2) Take 1-5 parts by weight of amylase to prepare a 5% amylase solution, add the prepared 5% amylase solution to the starch slurry, and stir for 20 minutes; then mix the starch slurry Heat the material to 85-95°C and keep it warm for 40 minutes;
3)向淀粉浆料中加入重量份为1～6份的过碳酸钠继续反应10分钟，再加入重量份为10～20份酚醛树脂搅拌20分钟，即制得用于高炉除尘灰冷压制球的粘合剂。3) Add 1-6 parts by weight of sodium percarbonate to the starch slurry and continue to react for 10 minutes, then add 10-20 parts by weight of phenolic resin and stir for 20 minutes to obtain cold-pressed balls for blast furnace dust removal of adhesives.
本发明的有益效果是：The beneficial effects of the present invention are:
1)本发明制备的用于高炉除尘灰冷压制球的粘合剂，生产成本低，工艺简单，粘合强度高，不再对除尘灰增加有害杂质。1) The adhesive for cold-pressing pellets of blast furnace dedusting ash prepared by the present invention has low production cost, simple process, high bonding strength, and does not add harmful impurities to dedusting ash.
2)本发明采用淀粉酶水解淀粉，然后加热糊化，制得的粘合剂固含量高、粘合强度高、流动性好，也不会引入其他化学杂质；除此之外本发明在制备过程中加入了酚醛树脂，提高了粘合剂的抗水性。2) The present invention uses amylase to hydrolyze starch, and then heats and gelatinizes, so that the prepared adhesive has high solid content, high bonding strength, good fluidity, and will not introduce other chemical impurities; A phenolic resin is added to the process to improve the water resistance of the adhesive.
具体实施方式detailed description
下面结合实施例对本发明作进一步说明。The present invention will be further described below in conjunction with embodiment.
本实施例中的一种用于高炉除尘灰冷压制球的粘合剂，由以下重量份的原料组成，玉米淀粉300份，水700份，淀粉酶1～5份，过碳酸钠1～6份，酚醛树脂10～20份。A binder for cold-pressed balls of blast furnace dedusting ash in this embodiment consists of the following raw materials in parts by weight: 300 parts of cornstarch, 700 parts of water, 1 to 5 parts of amylase, and 1 to 6 parts of sodium percarbonate 10-20 parts of phenolic resin.
一种用于高炉除尘灰冷压制球的粘合剂的制备方法，包括如下步骤：A kind of preparation method of the binder that is used for blast furnace dedusting ash cold-pressed ball, comprises the steps:
1)淀粉浆料的配制：取重量份为300份的玉米淀粉，在搅拌条件下加入重量份为700份的水中制成淀粉浆料；1) Preparation of starch slurry: take 300 parts by weight of corn starch, and add 700 parts by weight of water under stirring conditions to make starch slurry;
2)取重量份为1-5份的淀粉酶配制成浓度为5％的淀粉酶溶液，向淀粉浆料中加入配制好的浓度为5％的淀粉酶溶液，搅拌20分钟；然后将淀粉浆料加热到85-95℃，保温反应40分钟；2) Take 1-5 parts by weight of amylase to prepare a 5% amylase solution, add the prepared 5% amylase solution to the starch slurry, and stir for 20 minutes; then mix the starch slurry Heat the material to 85-95°C and keep it warm for 40 minutes;
3)向淀粉浆料中加入重量份为1～6份的过碳酸钠继续反应10分钟，再加入重量份为10～20份酚醛树脂搅拌20分钟，即制得用于高炉除尘灰冷压制球的粘合剂。3) Add 1-6 parts by weight of sodium percarbonate to the starch slurry and continue to react for 10 minutes, then add 10-20 parts by weight of phenolic resin and stir for 20 minutes to obtain cold-pressed balls for blast furnace dust removal of adhesives.
实施例1Example 1
本实施例中的一种用于高炉除尘灰冷压制球的粘合剂，由以下重量份的原料组成，玉米淀粉300克，水700克，淀粉酶1克，过碳酸钠1克，酚醛树脂10克。A kind of binder used for blast furnace dedusting cold-pressed balls in the present embodiment is made up of the following raw materials in parts by weight: 300 grams of cornstarch, 700 grams of water, 1 gram of amylase, 1 gram of sodium percarbonate, and phenolic resin 10 grams.
一种上述实施例中用于高炉除尘灰冷压制球的粘合剂的制备方法，包括如下步骤：A preparation method for the binder used in the blast furnace dust cold-pressed pellets in the above-mentioned embodiment, comprises the following steps:
1)淀粉浆料的配制：取300克的玉米淀粉，在搅拌条件下加入700克的水中制成淀粉浆料；1) Preparation of starch slurry: get 300 grams of cornstarch, add 700 grams of water under stirring conditions to make starch slurry;
2)取1克的淀粉酶配制成浓度为5％的淀粉酶溶液，向淀粉浆料中加入配制好的浓度为5％的淀粉酶溶液，搅拌20分钟；然后将淀粉浆料加热到85-95℃，保温反应40分钟；2) Take 1 gram of amylase and prepare a concentration of 5% amylase solution, add the prepared concentration of 5% amylase solution into the starch slurry, stir for 20 minutes; then heat the starch slurry to 85- 95°C, keep warm for 40 minutes;
3)向淀粉浆料中加入1克的过碳酸钠继续反应10分钟，再加入10克的酚醛树脂搅拌20分钟，即制得用于高炉除尘灰冷压制球的粘合剂。3) Add 1 gram of sodium percarbonate to the starch slurry and continue to react for 10 minutes, then add 10 grams of phenolic resin and stir for 20 minutes to obtain a binder for cold-pressed balls of blast furnace dust.
实施例2Example 2
本实施例中的一种用于高炉除尘灰冷压制球的粘合剂，由以下重量份的原料组成，玉米淀粉300克，水700克，淀粉酶3克，过碳酸钠3克，酚醛树脂15克。A kind of binder used for blast furnace dedusting ash cold-pressed balls in the present embodiment is made up of the following raw materials in parts by weight: 300 grams of cornstarch, 700 grams of water, 3 grams of amylase, 3 grams of sodium percarbonate, and phenolic resin 15 grams.
一种上述实施例中用于高炉除尘灰冷压制球的粘合剂的制备方法，包括如下步骤：A preparation method for the binder used in the blast furnace dust cold-pressed pellets in the above-mentioned embodiment, comprises the following steps:
1)淀粉浆料的配制：取300克的玉米淀粉在搅拌条件下加入700克的水中制成淀粉浆料；1) Preparation of starch slurry: get 300 grams of cornstarch and add 700 grams of water under stirring to make starch slurry;
2)取3克的淀粉酶配制成浓度为5％的淀粉酶溶液，向淀粉浆料中加入配制好的浓度为5％的淀粉酶溶液，搅拌20分钟；然后将淀粉浆料加热到85-95℃，保温反应40分钟；2) get 3 grams of amylase and be mixed with a concentration of 5% amylase solution, add the prepared concentration of 5% amylase solution into the starch slurry, stir for 20 minutes; then heat the starch slurry to 85- 95°C, keep warm for 40 minutes;
3)向淀粉浆料中加入3克的过碳酸钠继续反应10分钟，再加入15克的酚醛树脂搅拌20分钟，即制得用于高炉除尘灰冷压制球的粘合剂。3) Add 3 grams of sodium percarbonate to the starch slurry and continue to react for 10 minutes, then add 15 grams of phenolic resin and stir for 20 minutes to obtain an adhesive for blast furnace dust cold-pressed balls.
实施例3Example 3
本实施例中的一种用于高炉除尘灰冷压制球的粘合剂，由以下重量份的原料组成，玉米淀粉300克，水700克，淀粉酶5克，过碳酸钠6克，酚醛树脂20克。A kind of binder used for cold pressing balls of blast furnace dedusting ash in the present embodiment is made up of the following raw materials in parts by weight: 300 grams of cornstarch, 700 grams of water, 5 grams of amylase, 6 grams of sodium percarbonate, and phenolic resin 20 grams.
一种上述实施例中用于高炉除尘灰冷压制球的粘合剂的制备方法，包括如下步骤：A preparation method for the binder used in the blast furnace dust cold-pressed pellets in the above-mentioned embodiment, comprises the following steps:
1)淀粉浆料的配制：取300克的玉米淀粉在搅拌条件下加入700克的水中制成淀粉浆料；1) Preparation of starch slurry: get 300 grams of cornstarch and add 700 grams of water under stirring to make starch slurry;
2)取5克的淀粉酶配制成浓度为5％的淀粉酶溶液，向淀粉浆料中加入配制好的浓度为5％的淀粉酶溶液，搅拌20分钟；然后将淀粉浆料加热到85-95℃，保温反应40分钟；2) Get 5 grams of amylase and be mixed with a concentration of 5% amylase solution, add the prepared concentration of 5% amylase solution into the starch slurry, stir for 20 minutes; then heat the starch slurry to 85- 95°C, keep warm for 40 minutes;
3)向淀粉浆料中加入6克的过碳酸钠继续反应10分钟，再加入20克的酚醛树脂搅拌20分钟，即制得用于高炉除尘灰冷压制球的粘合剂。3) Add 6 grams of sodium percarbonate to the starch slurry and continue to react for 10 minutes, then add 20 grams of phenolic resin and stir for 20 minutes to obtain an adhesive for blast furnace dust cold-pressed balls.
Claims (3)
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| CN113372845A (en) * | 2021-07-05 | 2021-09-10 | 上海宝叶冶金技术有限公司 | Special water-based binder for rotary hearth furnace and production method thereof |
| CN113461399A (en) * | 2021-06-21 | 2021-10-01 | 邯郸钢铁集团有限责任公司 | Method for innocent treatment of refining furnace dedusting ash and utilization of dedusting ash in slag pot grating |
| CN116065019A (en) * | 2023-03-08 | 2023-05-05 | 酒泉钢铁(集团)有限责任公司 | Ferrous metallurgy dust-removing pellet binder and preparation and use methods thereof |
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| CN113461399A (en) * | 2021-06-21 | 2021-10-01 | 邯郸钢铁集团有限责任公司 | Method for innocent treatment of refining furnace dedusting ash and utilization of dedusting ash in slag pot grating |
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| CN113372845A (en) * | 2021-07-05 | 2021-09-10 | 上海宝叶冶金技术有限公司 | Special water-based binder for rotary hearth furnace and production method thereof |
| CN116065019A (en) * | 2023-03-08 | 2023-05-05 | 酒泉钢铁(集团)有限责任公司 | Ferrous metallurgy dust-removing pellet binder and preparation and use methods thereof |
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