CN102312088A - Cold bonding briquette production method using powder material - Google Patents
Cold bonding briquette production method using powder material Download PDFInfo
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- CN102312088A CN102312088A CN201110184675A CN201110184675A CN102312088A CN 102312088 A CN102312088 A CN 102312088A CN 201110184675 A CN201110184675 A CN 201110184675A CN 201110184675 A CN201110184675 A CN 201110184675A CN 102312088 A CN102312088 A CN 102312088A
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- briquetting
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Abstract
The invention relates to a cold bonding briquette production method using a powder material. The method comprises steps of: step1: pretreatment: (I) furnishing: weighing raw materials of, by weight, 5-10 parts of aqueous solution with a cellulose content of 5-10%, 82-88 parts of iron contained precipitator dust, 5-10 parts of binder soluble glass, wherein the cellulose has a chemical formula of ((C6H10O5))n; (II) prewetting: spraying the aqueous solution with a cellulose content of 5-10% on the bulk and mixing well; (III) drying: drying the bulk in a rotary drum dryer to a suitable water content of 5.2+/-1%; step 2: briquetting: (I) mixing the binder: adding the binder soluble glass and mixing well; (II) briquetting: the furnished bulk is put into a steel die with an internal diameter of 50+/-10 mm and a height of 50+/-10 mm, compacting and moulding by a press, and drying. The cold bonding briquette produced by the cold bonding briquette production method using a powder material has high strength and high effective component content.
Description
Technical field
The present invention relates to a kind of method of producing cold fixed briquetting with pulverulent material.
Background technology
In modern times in the production run of Steel Complex; Can produce a large amount of bulk materials; The for example dedusting ash of various metallurgical reactions, various powdered alloys etc.; These materials that need recycle adopt cold fixed mode to manufacture block material usually, get into and participate in various physical-chemical reactions in the metallurgical reaction.These cold fixed briquettings need higher intensity; Existing method of producing cold fixed briquetting with pulverulent material, what the home and abroad utilization was comparatively successful is to make cold fixed briquetting with cement as sticker, this method needs the cement of adapted more than 20%; Intensity can reach about the 5000N/ piece; But because of sticker is bigger with addition of amount, the metal content of block material has decline significantly, about about 20%.Therefore develop a kind of method that can reduce sticker with addition of the cold fixed briquetting of amount; Reducing sticker in amount; Can improve the intensity of the cold fixed briquetting of cold fixed briquetting; Can also improve the iron grade of cold fixed briquetting, significant for the use that improves the circulation powder-material in the iron and steel enterprise.
Summary of the invention
In order to overcome existing above-mentioned deficiency of producing the method for cold fixed briquetting with pulverulent material; The present invention provides a kind of cold fixed briquetting binder content low, the method for producing cold fixed briquetting with pulverulent material that the intensity of cold fixed briquetting and the content of effective ingredient are higher.
A kind of method that improves the intensity of cold fixed briquetting provided by the invention, divide two key steps, the first step: pre-treatment comprises batching, wetting, oven dry in advance; Second step: briquetting comprises and joins sticker, briquetting that it is characterized in that, increased the technology of carrying out the pre-treatment bulk material with the aqueous solution of cellulose, wherein content of cellulose 5～10%.
This method of producing cold fixed briquetting with pulverulent material comprises following sequential steps:
The first step: pre-treatment
The I batching
With required bulk cargo is that iron content dedusting ash and auxiliary material weigh up by following weight part:
Aqueous solution 5-10 part of content of cellulose 5～10%
Iron content dedusting ash 82-88 part; Sticker is selected water glass 5-10 part for use;
Wherein cellulosic chemical formula is ((C6H10O5)) n
Chemical Composition is: C 44.44%, H6.17%, and O 49.39%.
II is wetting in advance
With the aqueous solution of content of cellulose 5～10%, spray is on bulk cargo, and overturning makes bulk cargo fully wetting, mixes;
The III oven dry:
After bulk cargo is dried, reach suitable moisture 5.2 ± 1% in rotary drum dryer.
Second step: briquetting
I joins sticker:
Add water glass of binder, through cylindrical mixer or artificial fully mixing.
The II briquetting
The above-mentioned bulk cargo for preparing is put into internal diameter 50 ± 10mm, the steel of high 50 ± 10mm
Mould through being not less than the pressing machine compression moulding of 500kg, dries.
The method that this produces cold fixed briquetting with pulverulent material is in the first step: in the pre-treatment I batching step, when adopting two or more iron content dedusting ash, in Step II is wetting in advance, will bulk cargo be mixed earlier.
Through above-mentioned step, intensity can reach 5000 ± 50N/ piece.The present invention is specially adapted to without high-temperature roasting and the manufacturing enterprise that the shape material that will loose is processed into the HS piece, and is applicable to similar laboratory.
Present method is produced cold fixed briquetting with pulverulent material the advantage of method is following:
(1) through the shape material that looses is carried out the pre-treatment of the aqueous solution of cellulose, the crystalline Mierocrystalline cellulose again that made its surface attachment has improved the affinity ability of diffusing shape material to sticker.
(2) pass through with addition of a small amount of common sticker, and the lower pressing machine compression moulding of applying pressure, high-intensity cold fixed briquetting just can be obtained.When reducing the sticker dosage, improve the iron grade of intensity and cold fixed briquetting.
Embodiment
The embodiment of producing cold fixed briquetting with pulverulent material below in conjunction with the embodiment process in detail, but this embodiment of producing the method for cold fixed briquetting with pulverulent material is not limited to following embodiment.
Embodiment 1: use the solid piece of cement production iron content dedusting ash cooling (being used for reference to contrast)
Use the concrete steps of the fixed briquetting of cement production iron content dedusting ash cooling following:
1. prepare burden:
Cement and iron content dedusting ash are prepared burden by weight:
20 parts of cement;
1 40 parts of iron content dedusting ash;
2 40 parts of iron content dedusting ash;
Wherein cement is No. 325 cement commonly used on the market, and iron content dedusting ash composition and size composition are following:
The indexs such as chemical ingredients of table 1 iron content dedusting ash
2. mix
Said components is through manual work or cylindrical mixer mixing, and mixture moisture is 6.5%;
3. briquetting:
The above-mentioned bulk cargo for preparing is put into internal diameter 50mm, and the steel die of high 50mm through the pressing machine compression moulding of 500kg, dries, and can reach the 4897N/ piece through measuring ultimate compression strength.The iron grade of cold fixed briquetting is 39.79%.
Embodiment 2: use water glass to prepare the solid piece of iron content dedusting ash cooling (being used for reference to contrast)
The concrete steps that use water glass prepares the fixed briquetting of iron content dedusting ash cooling are following:
1. prepare burden:
Water glass and iron content dedusting ash are prepared burden by weight:
20 parts of water glass; 1 40 parts of iron content dedusting ash; 2 40 parts of iron content dedusting ash;
Iron content dedusting ash composition and size composition are following:
The indexs such as chemical ingredients of table 1 iron content dedusting ash
2. mix
Said components is through the machine,massing mixing, and mixture moisture is 6.7%;
3. briquetting:
The above-mentioned bulk cargo for preparing is put into internal diameter 50mm, and the steel die of high 50mm through the pressing machine compression moulding of 500kg, dries, and can reach the 1800N/ piece through measuring ultimate compression strength.The iron grade of cold fixed briquetting is 39.79%.
Embodiment 3: embodiments of the invention
The first step: pre-treatment
1. prepare burden:
Required bulk cargo and auxiliary material are weighed up by following weight part:
6 parts of the aqueous solution of content of cellulose 6%
1 43 parts of iron content dedusting ash; 2 43 parts of iron content dedusting ash;
Sticker is selected 8 parts of water glass for use;
TFe, FeO, SiO in the iron content dedusting ash 1
2, CaO, MgO and Ig content be:
TFe?50.86％；FeO?4.96％；SiO
2?5.61％；CaO?9.46％；
MgO 1.65%; Ig 9.2%; Granularity-0.074mm, 67.3%.
TFe, FeO, SiO in the iron content dedusting ash 2
2, CaO, MgO and Ig content be:
TFe?48.62％；FeO?3.84％；SiO
2?6.38％；CaO?6.54％；
MgO 1.2%; Ig 8.7%; Granularity-0.074mm, 57.8%.
2. wetting in advance
Earlier iron content dedusting ash 1 is mixed with iron content dedusting ash 2, the bulk cargo that becomes to mix with the aqueous solution of content of cellulose 6%, sprays on the bulk cargo that mixes, and overturning also mixes,
Make bulk cargo fully wetting, make the moisture of compound reach 9.7%.
3. oven dry
After compound is dried, reach suitable moisture 5.3% in rotary drum dryer.
Second step: briquetting
1. join sticker:
Add water glass of binder, through the abundant mixing of stirrer.
2. briquetting
The above-mentioned bulk cargo for preparing is put into internal diameter 50mm, and the steel die of high 50mm is through 500kg
Pressing machine compression moulding, dry.
Through above-mentioned process step, intensity can reach the 4763N/ piece.The iron grade of cold fixed briquetting is 42.77%.
Can find out by instance 3; Adopt first wetting in advance with addition of cellulose aqueous solution, back behind the two-step process of water glass powerful mixing; The intensity of cold fixed briquetting is stabilized in about the 4800N/ piece basically, but the iron grade of cold fixed briquetting brings up to 42.77% by 39.79%.Its intensity is equal to the directly logical single stage method (instance 1) that adds cement basically, and far above the single stage method that only adds water glass (instance 2).
Embodiment 4: embodiments of the invention
The first step: pre-treatment
1. prepare burden:
Required bulk cargo and auxiliary material are weighed up by following weight part:
8 parts of the aqueous solution of content of cellulose 7%;
1 42 parts of iron content dedusting ash; 2 42 parts of iron content dedusting ash;
Sticker is selected 8 parts of water glass for use;
TFe, FeO, SiO in the iron content dedusting ash 1
2, CaO, MgO and Ig content be:
TFe?50.86％；FeO?4.96％；SiO
2?5.61％；CaO?9.46％；
MgO 1.65%; Ig 9.2%; Granularity-0.074mm, 67.3%.
TFe, FeO, SiO in the iron content dedusting ash 2
2, CaO, MgO and Ig content be:
TFe?48.62％；FeO?3.84％；SiO
2?6.38％；CaO?6.54％；
MgO 1.2%; Ig 8.7%; Granularity-0.074mm, 57.8%.
2. wetting in advance
Earlier iron content dedusting ash 1 is mixed with iron content dedusting ash 2, the bulk cargo that becomes to mix with the aqueous solution of content of cellulose 7%, sprays on the good bulk cargo of mixing, and overturning makes bulk cargo fully wetting, makes the moisture of compound reach 9.5%.
3. oven dry
After compound is dried, reach suitable moisture 5.2% in rotary drum dryer.
Second step: briquetting
1. join sticker:
Add water glass of binder, through the abundant mixing of stirrer.
2. briquetting
The above-mentioned bulk cargo for preparing is put into internal diameter 50mm, and the steel die of high 50mm through the pressing machine compression moulding of 500kg, dries.
Through above-mentioned process step, intensity can reach the 5012N/ piece.The iron grade of cold fixed briquetting is 41.78%.
Can find out by instance 4, suitably improve the ratio of cellulose aqueous solution after, the intensity of cold fixed briquetting is further brought up to about the 5012N/ piece again, but the iron grade of cold fixed briquetting has decline slightly.Its intensity is equal to the directly logical single stage method (instance 1) that adds cement basically, and far above the single stage method that only adds water glass (instance 2).
Embodiment 5: embodiments of the invention
The first step: pre-treatment
1. prepare burden:
Required bulk cargo and auxiliary material are weighed up by following weight part:
8 parts of the aqueous solution of content of cellulose 7%
1 84 parts of iron content dedusting ash; Sticker is selected 8 parts of water glass for use;
TFe, FeO, SiO in the iron content dedusting ash 1
2, CaO, MgO and Ig content be:
TFe?50.86％；FeO?4.96％；SiO
2?5.61％；CaO?9.46％；
MgO 1.65%; Ig 9.2%; Granularity-0.074mm, 67.3%.
2. wetting in advance
With the aqueous solution of content of cellulose 7%, on the good bulk cargo of mixing, spray, overturning makes bulk cargo fully wetting, makes the moisture of compound reach 9.5%.
3. oven dry
After compound is dried, reach suitable moisture 5.2% in rotary drum dryer.
Second step: briquetting
1. join sticker:
Sticker is selected water glass for use, with addition of ratio 8%, through the abundant mixing of stirrer.
2. briquetting
The above-mentioned bulk cargo for preparing is put into internal diameter 50mm, and the steel die of high 50mm through the pressing machine compression moulding of 500kg, dries.
Through above-mentioned process step, intensity can reach the 5012N/ piece.The iron grade of cold fixed briquetting is 41.78%.
Each part weight among above-mentioned five embodiment is 10kg, and embodiment three, embodiment four are ((C6H10O5)) n with the cellulosic chemical formula described in the embodiment five
Chemical Composition is: C 44.44%, H6.17%, and O 49.39%.
The described per-cent of present specification all is mass percent.
The described auxiliary material of present specification is the aqueous solution and the water glass of binder of content of cellulose 5～10%.
Claims (2)
1. method of producing cold fixed briquetting with pulverulent material, it comprises following sequential steps: the first step: pre-treatment
The I batching
Iron content dedusting ash and auxiliary material are weighed up by following weight part:
Aqueous solution 5-10 part of content of cellulose 5～10%
Iron content dedusting ash 82-88 part; Sticker is selected water glass 5-10 part for use;
Wherein cellulosic chemical formula is ((C6H10O5)) n;
II is wetting in advance
With the aqueous solution of content of cellulose 5～10%, spray is on bulk cargo, and overturning makes bulk cargo fully wetting, mixes;
The III oven dry
After bulk cargo is dried, reach suitable moisture 5.2 ± 1% in rotary drum dryer;
Second step: briquetting
I joins sticker:
Add water glass of binder, through cylindrical mixer or artificial fully mixing;
The II briquetting
The above-mentioned bulk cargo for preparing is put into internal diameter 50 ± 10mm, and the steel die of high 50 ± 10mm through being not less than the pressing machine compression moulding of 500kg, dries.
2. method of producing cold fixed briquetting with pulverulent material according to claim 1 is characterized in that: in the first step pre-treatment I batching step, when adopting two or more iron content dedusting ash, in Step II is wetting in advance, will bulk cargo be mixed earlier.
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| CN201110184675A CN102312088A (en) | 2011-07-01 | 2011-07-01 | Cold bonding briquette production method using powder material |
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| CN201110184675A CN102312088A (en) | 2011-07-01 | 2011-07-01 | Cold bonding briquette production method using powder material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117381951A (en) * | 2023-12-07 | 2024-01-12 | 河北蓝海智投环保科技有限公司 | Ash powder briquetting die and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1120074A (en) * | 1995-07-21 | 1996-04-10 | 宝山钢铁(集团)公司 | Method of production for direct reduction furnace charge by cold-consolidation briquetting method |
| CN101270410A (en) * | 2007-03-20 | 2008-09-24 | 尚国洪 | Cold bonded pellet and method of producing the same |
| CN101705333A (en) * | 2009-11-28 | 2010-05-12 | 山西太钢不锈钢股份有限公司 | Reduction and utilization method of dedusting ash of stainless steel |
-
2011
- 2011-07-01 CN CN201110184675A patent/CN102312088A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1120074A (en) * | 1995-07-21 | 1996-04-10 | 宝山钢铁(集团)公司 | Method of production for direct reduction furnace charge by cold-consolidation briquetting method |
| CN101270410A (en) * | 2007-03-20 | 2008-09-24 | 尚国洪 | Cold bonded pellet and method of producing the same |
| CN101705333A (en) * | 2009-11-28 | 2010-05-12 | 山西太钢不锈钢股份有限公司 | Reduction and utilization method of dedusting ash of stainless steel |
Non-Patent Citations (2)
| Title |
|---|
| 向峰: "锰粉精矿冷压球团强度影响因素的研究", 《中国优秀硕士学位论文全文数据库 工程科技I辑》, no. 09, 15 September 2008 (2008-09-15), pages 11 - 14 * |
| 沈宗斌等: "钢铁粉尘冷固结球团工艺研究", 《钢铁》, vol. 38, no. 12, 31 December 2003 (2003-12-31), pages 1 - 5 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117381951A (en) * | 2023-12-07 | 2024-01-12 | 河北蓝海智投环保科技有限公司 | Ash powder briquetting die and method |
| CN117381951B (en) * | 2023-12-07 | 2024-02-20 | 河北蓝海智投环保科技有限公司 | Ash powder briquetting die and method |
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Application publication date: 20120111 |