CN108570554A - A kind of novel binders and its preparation method and application - Google Patents
A kind of novel binders and its preparation method and application Download PDFInfo
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- CN108570554A CN108570554A CN201810618119.3A CN201810618119A CN108570554A CN 108570554 A CN108570554 A CN 108570554A CN 201810618119 A CN201810618119 A CN 201810618119A CN 108570554 A CN108570554 A CN 108570554A
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- 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
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Abstract
The present invention provides a kind of novel binders, are prepared by the raw material including following components：Titanium slag electric furnace dedusting ash 20wt%~70wt%；Vegetable adhesive 20wt%~70wt%；Polyacrylamide 1wt%~10wt%.The present invention also provides a kind of agglomeration methods of powder resource, include the following steps：A) powder resource and binder progress is dry-mixed, it adds water and carries out wet mixing, obtain mixture；The binder is the novel binders described in above-mentioned technical proposal or the novel binders that the preparation method described in above-mentioned technical proposal is prepared；B) mixture for obtaining step a) carries out pelletizing forming, obtains molding agglomeration.Compared with prior art, novel binders provided by the invention coordinate other certain content components using titanium slag electric furnace dedusting ash as primary raw material, have higher resource utilization and lower cost；Meanwhile the novel binders are suitable for the pelletizing forming of powder resource, have preferable ratio of briquetting and intensity, to realize making full use of for powder resource.
Description
Technical field
The present invention relates to pelletizing forming technical fields, are to be related to a kind of novel binders and its preparation side more specifically
Method and application.
Background technology
Smelting Ilmenite Concentrate in Electric Furnace production high titanium slag is the main method of titanium material processing, and titanium smeltery of Pan Gang joint-stock companies is existing
There are titanium slag electric furnace 3, year to handle 250,000 tons of ilmenite concentrate, produces 140000 tons of high titanium slag per year.
In actual production, since ilmenite concentrate granularity is meticulous (the following particle fraction of 200 mesh reaches 75% or more), enter stove smelting
Fine grained is easy to be pumped into flue by exhausting system and enters dust pelletizing system and then form dedusting ash in the process, and titanium smeltery is annual
1.5 ten thousand tons of dedusting ash are generated, significant loss amount is larger, and also needs to certain funds and handle it, causes economic loss,
Improve production cost.
On the other hand, ilmenite concentrate powder, which directly enters electric furnace smelting, causes fine powder material to enter flue with furnace gas, frequently causes cigarette
Road and furnace gas processing system block, it is necessary to which stop production cleaning, to influence to produce direct motion, reduces production efficiency；In addition, fine powder material exists
Easily airborne dust in transport process, causes production environment to deteriorate.
To reduce, row enters stove again after ilmenite concentrate powder loses and promotes electric furnace smelting direct motion, consideration that ilmenite concentrate is pelletized,
Cleaning shaft can be alleviated to a certain extent and block and reduce dedusting ash yield.
Similarly, the byproducts such as a large amount of dust, such as enrichment sludge, converter dust-removing ash are will produce inside steel plant
Deng.Iron is rich in these dusts, therefore, and valuable secondary resource, it is to improve the level of resources utilization to make good use of such resource,
The important channel of cost efficiency.Currently, the secondary resources such as rich iron-containing enrichment sludge, converter dust-removing ash mostly use conduct after agglomeration
Vanadium-raising cooling agent and converter slagging agent use,
In conclusion since above-mentioned secondary resource is mostly powder, directly uses dust yield big, influence gas permeability, because
This, the prior art is required for row utilizes again after its agglomeration；But agglomeration is higher with binder cost, restricts to a certain extent
The scale of secondary resource utilizes.
Invention content
In view of this, the purpose of the present invention is to provide a kind of novel binders and its preparation method and application, the present invention
The novel binders of offer have higher resource utilization and lower cost using titanium slag electric furnace dedusting ash as primary raw material,
Pelletizing forming suitable for powder resource.
The present invention provides a kind of novel binders, are prepared by the raw material including following components：
Titanium slag electric furnace dedusting ash 20wt%~70wt%；
Vegetable adhesive 20wt%~70wt%；
Polyacrylamide 1wt%~10wt%.
Preferably, the chemical composition of the titanium slag electric furnace dedusting ash includes：Fe2O3Content >=20%, TiO2Content >=
20%, SiO2Content >=10%.
Preferably, the vegetable adhesive includes amylan, bean gum, gum rosin, carboxymethyl cellulose gum and lignin glue
In it is one or more.
The present invention also provides a kind of preparation methods of the novel binders described in above-mentioned technical proposal, including following step
Suddenly：
Titanium slag electric furnace dedusting ash, vegetable adhesive and polyacrylamide are mixed, novel binders are obtained.
The present invention also provides a kind of agglomeration methods of powder resource, include the following steps：
A) powder resource and binder progress is dry-mixed, it adds water and carries out wet mixing, obtain mixture；The binder is
The novel binders that the preparation method described in novel binders or above-mentioned technical proposal described in above-mentioned technical proposal is prepared；
B) mixture for obtaining step a) carries out pelletizing forming, obtains molding agglomeration.
Preferably, powder resource described in step a) is selected from ilmenite concentrate, enrichment sludge or converter dust-removing ash.
Preferably, the mass ratio of powder resource and binder described in step a) is 100：(2~6).
Preferably, the addition of water described in step a) is the 6%~12% of powder resource and binder gross mass.
Preferably, the mode of pelletizing forming described in step b) is to roll molding or compression moulding.
Preferably, the pressure of the compression moulding is 10MPa~20MPa.
The present invention provides a kind of novel binders, are prepared by the raw material including following components：Titanium slag electric furnace dedusting
Grey 20wt%~70wt%；Vegetable adhesive 20wt%~70wt%；Polyacrylamide 1wt%~10wt%.The present invention also carries
A kind of agglomeration method of powder resource has been supplied, has been included the following steps：A) powder resource and binder progress is dry-mixed, add water
Wet mixing is carried out, mixture is obtained；The binder for described in above-mentioned technical proposal novel binders or above-mentioned technical proposal institute
The novel binders that the preparation method stated is prepared；B) mixture for obtaining step a) carries out pelletizing forming, is molded
Agglomeration.Compared with prior art, novel binders provided by the invention coordinate other using titanium slag electric furnace dedusting ash as primary raw material
Certain content component has higher resource utilization and lower cost；Meanwhile the novel binders are suitable for powder resource
Pelletizing forming, have preferable ratio of briquetting and intensity, to realize making full use of for powder resource.
It is promoted in addition, the novel binders solve the production cost that the stockpiling of powder resource generates and environment is generated not
The problem of profit influences, comprehensive benefit is notable, has broad application prospects.
Specific implementation mode
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
The every other embodiment that technical staff is obtained without making creative work belongs to the model that the present invention protects
It encloses.
The present invention provides a kind of novel binders, are prepared by the raw material including following components：
Titanium slag electric furnace dedusting ash 20wt%~70wt%；
Vegetable adhesive 20wt%~70wt%；
Polyacrylamide 1wt%~10wt%.
In the present invention, the titanium slag electric furnace dedusting ash is in titanium slag electric furnace smelting process, and ilmenite concentrate fine grained is by exhausting
System is pumped into flue and enters dust pelletizing system and form dedusting ash；The present invention is not particularly limited its source.In the present invention,
The chemical composition of the titanium slag electric furnace dedusting ash preferably includes：Fe2O3Content >=20%, TiO2Content >=20%, SiO2Content >=
10%；More preferably：Fe2O3Content >=20%, TiO2Content >=20%, SiO2Content >=20%.
In the present invention, the novel binders include the titanium slag electric furnace dedusting ash of 20wt%~70wt%, preferably
30wt%~70wt%.In the preferred embodiment of the invention, the novel binders include the titanium slag electric furnace dedusting of 70wt%
Ash；In presently preferred embodiment, the novel binders include the titanium slag electric furnace dedusting ash of 30wt%；At this
It invents in another preferred embodiment, the novel binders include the titanium slag electric furnace dedusting ash of 45wt%.
In the present invention, the vegetable adhesive preferably include amylan, bean gum, gum rosin, carboxymethyl cellulose gum and
It is one or more in lignin glue, more preferably amylan and/or carboxymethyl cellulose gum.The present invention is to the plant gluing
The source of agent is not particularly limited, fine using above-mentioned amylan well known to those skilled in the art, bean gum, gum rosin, carboxymethyl
The commercial goods of dimension plain glue and lignin glue.
In the present invention, the novel binders include the vegetable adhesive of 20wt%~70wt%, preferably 29wt%
~65wt%.In the preferred embodiment of the invention, the novel binders include the vegetable adhesive of 29wt%；In the present invention
In another preferred embodiment, the novel binders include the vegetable adhesive of 65wt%；Presently preferred
Embodiment in, the novel binders include the vegetable adhesive of 50wt%.
The present invention is not particularly limited the source of the polyacrylamide, using well known to those skilled in the art commercially available
Commodity.In the present invention, the novel binders include the polyacrylamide of 1wt%~10wt%, and preferably 1wt%~
5wt%.In the preferred embodiment of the invention, the novel binders include the polyacrylamide of 1wt%；It is another in the present invention
In a preferred embodiment, the novel binders include the polyacrylamide of 5wt%.
The present invention also provides a kind of preparation methods of the novel binders described in above-mentioned technical proposal, including following step
Suddenly：
Titanium slag electric furnace dedusting ash, vegetable adhesive and polyacrylamide are mixed, novel binders are obtained.The present invention
The mode of the mixing is not particularly limited, using mechanical agitation well known to those skilled in the art or the technology manually stirred
Scheme；Purpose is that titanium slag electric furnace dedusting ash, vegetable adhesive and polyacrylamide is made to be uniformly mixed.
Novel binders provided by the invention coordinate other certain content groups using titanium slag electric furnace dedusting ash as primary raw material
Point, titanium slag electric furnace dedusting ash is on the one hand recycled, there is higher resource utilization, on the other hand can reduce molding bonding
The cost of agent, the scale utilization rate of lifting powder resource, remarkable in economical benefits have a extensive future.
The present invention also provides a kind of agglomeration methods of powder resource, include the following steps：
A) powder resource and binder progress is dry-mixed, it adds water and carries out wet mixing, obtain mixture；The binder is
The novel binders that the preparation method described in novel binders or above-mentioned technical proposal described in above-mentioned technical proposal is prepared；
B) mixture for obtaining step a) carries out pelletizing forming, obtains molding agglomeration.
The present invention is dry-mixed by powder resource and binder progress first, adds water and carries out wet mixing, obtains mixture.At this
In invention, the powder resource is preferably selected from ilmenite concentrate, enrichment sludge or converter dust-removing ash.
In the preferred embodiment of the invention, the powder resource is ilmenite concentrate；The ilmenite concentrate is micro-size fraction titanium essence
Mine, granularity is thinner, and the following particle fraction of 200 mesh reaches 75% or more.
In presently preferred embodiment, the powder resource is enrichment sludge；The enrichment sludge is steel
Ironworks is enriched with sludge, is the secondary resource of steel plant comprising virgin material area is enriched with sludge and the areas Lao Liao are enriched with sludge, the virgin material
It is preferably 1 that area, which is enriched with sludge and the mass ratio of the areas Lao Liao enrichment sludge,：1.
In presently preferred embodiment, the powder resource is converter dust-removing ash；The converter dust-removing ash
For the secondary resource of steel plant.
In the present invention, the mass ratio of the powder resource and binder is preferably 100：(2~6), more preferably 100：
(3~5).
The present invention is not particularly limited the dry-mixed mode, using the technology of stirring well known to those skilled in the art
Scheme.In the present invention, the dry-mixed time is preferably 1min~5min, more preferably 2min~3min.
In the present invention, the addition of the water is preferably the 6%~12% of powder resource and binder gross mass, more excellent
It is selected as 7%~11%.
The present invention is not particularly limited the mode of the wet mixing, using the technology of stirring well known to those skilled in the art
Scheme.In the present invention, the rotating speed of the wet mixing is 30r/min~120r/min；The time of the wet mixing is preferably
2min~5min, more preferably 3min.
After obtaining the mixture, obtained mixture is carried out pelletizing forming by the present invention, obtains molding agglomeration.In this hair
In bright, the mode of the pelletizing forming preferably rolls molding or compression moulding.
In the preferred embodiment of the invention, the powder resource is ilmenite concentrate, and the mode of the pelletizing forming is to roll
Molding, obtains ilmenite concentrate agglomeration.The present invention is not particularly limited the molding equipment of rolling, using those skilled in the art
Well known revolving drum.After the present invention dries obtained ilmenite concentrate agglomeration, enters titanium slag electric furnace smelting, realize the further of the agglomeration
Using.
In another preferred embodiment of the present invention, the powder resource is enrichment sludge, the mode of the pelletizing forming
For compression moulding, enrichment sludge agglomeration is obtained, realizes further applying for steel plant's secondary resource.The present invention is pressed into described
The equipment of type is not particularly limited, using ball press well known to those skilled in the art.In the present invention, the compression moulding
Pressure is preferably 10MPa~20MPa, more preferably 10MPa~15MPa.
In another preferred embodiment of the present invention, the powder resource is converter dust-removing ash, the side of the pelletizing forming
Formula is compression moulding, obtains converter dust-removing ash agglomeration, realizes further applying for steel plant's secondary resource.The present invention is to the pressure
It makes molding equipment to be not particularly limited, using ball press well known to those skilled in the art.In the present invention, described to be pressed into
The pressure of type is preferably 10MPa~20MPa, more preferably 10MPa~15MPa.
Binder used in the agglomeration method of powder resource provided by the invention is the novel sticky described in above-mentioned technical proposal
The novel binders that preparation method described in knot agent or above-mentioned technical proposal is prepared, the novel binders are provided suitable for powder
The pelletizing forming in source has preferable ratio of briquetting and intensity, to realize making full use of for powder resource.
The present invention provides a kind of novel binders, are prepared by the raw material including following components：Titanium slag electric furnace dedusting
Grey 20wt%~70wt%；Vegetable adhesive 20wt%~70wt%；Polyacrylamide 1wt%~10wt%.The present invention also carries
A kind of agglomeration method of powder resource has been supplied, has been included the following steps：A) powder resource and binder progress is dry-mixed, add water
Wet mixing is carried out, mixture is obtained；The binder for described in above-mentioned technical proposal novel binders or above-mentioned technical proposal institute
The novel binders that the preparation method stated is prepared；B) mixture for obtaining step a) carries out pelletizing forming, is molded
Agglomeration.Compared with prior art, novel binders provided by the invention coordinate other using titanium slag electric furnace dedusting ash as primary raw material
Certain content component has higher resource utilization and lower cost；Meanwhile the novel binders are suitable for powder resource
Pelletizing forming, have preferable ratio of briquetting and intensity, to realize making full use of for powder resource.
It is promoted in addition, the novel binders solve the production cost that the stockpiling of powder resource generates and environment is generated not
The problem of profit influences, comprehensive benefit is notable, has broad application prospects.
In order to further illustrate the present invention, technical solution provided by the invention is retouched in detail with reference to embodiment
It states.Main component and the content ginseng of titanium slag electric furnace dedusting ash used in following embodiment of the present invention are shown in Table 1；Other raw materials are equal
For commercial goods.
The main component and content (quality percentage of titanium slag electric furnace dedusting ash used in 1 embodiment of the present invention of table
Content/%)
| Fe2O3 | FeO | TiO2 | SiO2 | CaO | MgO | Al2O3 |
| 28.85 | 3.41 | 24.75 | 22.90 | 1.12 | 12.57 | 2.09 |
Embodiment 1
(1) novel binders are prepared：
According to following mass percent dispensing：Titanium slag electric furnace dedusting ash：Amylan：Polyacrylamide=70%：29%：
1%；Above-mentioned titanium slag electric furnace dedusting ash, amylan and polyacrylamide are uniformly mixed under stirring conditions, obtain novel sticky
Tie agent.
(2) micro-size fraction ilmenite concentrate agglomeration：
The main particle size distribution ginseng of micro-size fraction ilmenite concentrate used in embodiment 1 is shown in Table 2；
The main particle size of micro-size fraction ilmenite concentrate used in 2 embodiment 1 of table is distributed
| Grade | - 200 mesh | - 325 mesh |
| Ratio/% | 79.24 | 46.32 |
The novel binders that above-mentioned micro-size fraction ilmenite concentrate and step (1) are obtained are according to mass ratio 100：5 ratio into
Row dispensing, dry-mixed 3min, obtains mixed material；Then the gross mass of the mixed material is added in obtained mixed material
11% water mixes 3min under the strong stirring of 90r/min rotating speeds, obtains mixture；Finally use internal diameter for 2.0m, length
The revolution cylinder device for being 0.04 for 6m, gradient carries out pelletizing forming to obtained mixture (mixture is added from end, with cylinder
The rotary motion of body, and rolled on cylinder inner wall, and gradually long great achievement particle), obtain molding agglomeration；Of the molding agglomeration
Grain diameter about 5mm.
After obtained molding agglomeration is dried, enter titanium slag electric furnace smelting.
After testing, the novel binders that the embodiment of the present invention 1 provides are 90% to the ratio of briquetting of micro-size fraction ilmenite concentrate, are obtained
The molding agglomeration drop strength arrived is 2 times/meter.
Embodiment 2
(1) novel binders are prepared：
According to following mass percent dispensing：Titanium slag electric furnace dedusting ash：Carboxymethyl cellulose gum：Polyacrylamide=
30%：65%：5%；Above-mentioned titanium slag electric furnace dedusting ash, carboxymethyl cellulose gum and polyacrylamide are mixed under stirring conditions
It closes uniformly, obtains novel binders.
(2) steel plant are enriched with sludge agglomeration：
Used in embodiment 2 steel plant enrichment sludge main component and content ginseng is shown in Table 3, granularmetric composition referring to
Shown in table 4；
The main component and content (mass percentage of steel plant's enrichment sludge used in 3 embodiment 2 of table
/ %)
| Raw material sources | MFe | FeO | CaO | SiO2 |
| Virgin material area | 39.44 | 24.04 | 8.30 | 10.49 |
| The areas Lao Liao | 54.56 | 25.97 | 4.21 | 4.57 |
The granularmetric composition of steel plant's enrichment sludge used in 4 embodiment 2 of table
The novel binders that above-mentioned virgin material area enrichment sludge, the areas Lao Liao enrichment sludge are obtained with step (1) are according to quality
Than 50：50：3 ratio carries out dispensing, and dry-mixed 2min obtains mixed material；Then described in being added in obtained mixed material
The water of the gross mass 7% of mixed material, wet mixing 3min, obtains mixture under the strong stirring of 90r/min rotating speeds；Finally use
Ball press carries out pelletizing forming to obtained mixture, and pressure 10MPa obtains molding agglomeration.
After testing, the novel binders that the embodiment of the present invention 2 provides are enriched with steel plant ratio of briquetting >=85% of sludge, obtain
The molding agglomeration drop strength arrived is 4 times/meter.
Embodiment 3
(1) novel binders are prepared：
According to following mass percent dispensing：Titanium slag electric furnace dedusting ash：Carboxymethyl cellulose gum：Polyacrylamide=
45%：50%：5%；Above-mentioned titanium slag electric furnace dedusting ash, carboxymethyl cellulose gum and polyacrylamide are mixed under stirring conditions
It closes uniformly, obtains novel binders.
(2) converter dust-removing ash agglomeration：
Main component and the content ginseng of converter dust-removing ash used in embodiment 3 are shown in Table 5；
The main component and content (mass percentage/%) of converter dust-removing ash used in 5 embodiment 3 of table
| Fe2O3 | FeO | SiO2 | CaO | MnO |
| 46.35 | 10.55 | 5.37 | 14.13 | 1.95 |
The novel binders that above-mentioned converter dust-removing ash and step (1) are obtained are according to mass ratio 100：5 ratio is matched
Material, dry-mixed 2min obtain mixed material；Then the gross mass 8% of the mixed material is added in obtained mixed material
Water, wet mixing 3min, obtains mixture under the strong stirring of 90r/min rotating speeds；Finally use ball press to obtained mixture
Pelletizing forming is carried out, pressure 15MPa obtains molding agglomeration.
After testing, the novel binders that the embodiment of the present invention 3 provides obtain ratio of briquetting >=85% of converter dust-removing ash
Molding agglomeration drop strength is 4 times/meter.
The above description of the disclosed embodiments, enables those skilled in the art to implement or use the present invention.It is right
A variety of modifications of these embodiments will be apparent to those skilled in the art, and as defined herein one
As principle can realize in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention will
It will not be intended to be limited to the embodiments shown herein, and be to fit to consistent with the principles and novel features disclosed herein
Widest range.
Claims (10)
1. a kind of novel binders are prepared by the raw material including following components：
Titanium slag electric furnace dedusting ash 20wt%~70wt%；
Vegetable adhesive 20wt%~70wt%；
Polyacrylamide 1wt%~10wt%.
2. novel binders according to claim 1, which is characterized in that the chemical composition packet of the titanium slag electric furnace dedusting ash
It includes：Fe2O3Content >=20%, TiO2Content >=20%, SiO2Content >=10%.
3. novel binders according to claim 1, which is characterized in that the vegetable adhesive include amylan, bean gum,
It is one or more in gum rosin, carboxymethyl cellulose gum and lignin glue.
4. a kind of preparation method of claims 1 to 3 any one of them novel binders, includes the following steps：
Titanium slag electric furnace dedusting ash, vegetable adhesive and polyacrylamide are mixed, novel binders are obtained.
5. a kind of agglomeration method of powder resource, includes the following steps：
A) powder resource and binder progress is dry-mixed, it adds water and carries out wet mixing, obtain mixture；The binder is right
It is required that the novel binders that the preparation method described in 1~3 any one of them novel binders or claim 4 is prepared；
B) mixture for obtaining step a) carries out pelletizing forming, obtains molding agglomeration.
6. agglomeration method according to claim 5, which is characterized in that powder resource described in step a) be selected from ilmenite concentrate,
It is enriched with sludge or converter dust-removing ash.
7. agglomeration method according to claim 5, which is characterized in that the matter of powder resource and binder described in step a)
Amount is than being 100：(2~6).
8. agglomeration method according to claim 5, which is characterized in that the addition of water described in step a) is powder resource
With the 6%~12% of binder gross mass.
9. agglomeration method according to claim 5, which is characterized in that the mode of pelletizing forming described in step b) is to roll
Molding or compression moulding.
10. agglomeration method according to claim 9, which is characterized in that the pressure of the compression moulding be 10MPa~
20MPa。
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109112297A (en) * | 2018-10-19 | 2019-01-01 | 攀钢集团攀枝花钢铁研究院有限公司 | Converter is enriched with sludge molding binder and converter is enriched with sludge forming method |
| CN109680144A (en) * | 2018-12-18 | 2019-04-26 | 攀钢集团攀枝花钢铁研究院有限公司 | A kind of ferriferous oxide pelletizing and its preparation method and application |
| CN110156019A (en) * | 2019-06-21 | 2019-08-23 | 攀钢集团攀枝花钢铁研究院有限公司 | It is used to prepare the electric arc furnaces and titanium carbide slag preparation method of titanium carbide slag |
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| CN109680144A (en) * | 2018-12-18 | 2019-04-26 | 攀钢集团攀枝花钢铁研究院有限公司 | A kind of ferriferous oxide pelletizing and its preparation method and application |
| CN110156019A (en) * | 2019-06-21 | 2019-08-23 | 攀钢集团攀枝花钢铁研究院有限公司 | It is used to prepare the electric arc furnaces and titanium carbide slag preparation method of titanium carbide slag |
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