CN102121065B - Mineral powder moulding binder - Google Patents
Mineral powder moulding binder Download PDFInfo
- Publication number
- CN102121065B CN102121065B CN2010105867946A CN201010586794A CN102121065B CN 102121065 B CN102121065 B CN 102121065B CN 2010105867946 A CN2010105867946 A CN 2010105867946A CN 201010586794 A CN201010586794 A CN 201010586794A CN 102121065 B CN102121065 B CN 102121065B
- Authority
- CN
- China
- Prior art keywords
- parts
- binder
- mineral powder
- sticker
- pelletizing
- 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.)
- Expired - Fee Related
Links
Abstract
The invention discloses a mineral powder moulding binder. The binder is characterized by comprising the following the components in parts by weight: 3-5 parts of polyacrylamide, 7-10 parts of calcium sulfate and 0-10 parts of sodium carbonate. The use method of the binder comprises the following steps: adding the binder in mineral powder, which accounts for 0.1-0.5wt% of mineral powder; then adding the mixture in a damp mill or high-pressure roller mill to grind and mix evenly; transferring the evenly mixed material to a pelletizer to pelletize; and transferring the moulded pellets in a shaft furnace or chain grate-rotary kiln to perform high-temperature roasting. The mineral powder moulding binder disclosed by the invention has low dosage and cost, is used to obviously increase the low temperature performance and high temperature performance of the pellets, does not bring ingredients harmful for iron-making and steel-making, successfully overcomes the defects of the inorganic binder that by using the inorganic binder, the grade of the pellet ore can be reduced and the metallurgical properties become poor, also solve the problem that the organic binder has the advantages of high cost and wide application prospect.
Description
Technical field
The present invention relates to a kind of the breeze post-treatment that bonds become the sticker of pelletizing, is to be used for the high temperature of breeze and the Mineral powder shaping sticker of low temperature moulding by it.
Background technology
Mineral powder shaping can be divided into high-temperature molding and cold fixed moulding two big classes by technological temperature.The former after material is carried out high-temperature roasting, carries out fixed through solid phase or liquid phase.The effect of sticker in high-temperature molding mainly is procedural strength and the thermal property that improves agglomerate (pelletizing), and final strength is realized by high temperature.The procedural strength of agglomerate (pelletizing) and final strength all rely on sticker and keep during cold fixed moulding, so it is very high to the requirement of sticker.But cold fixed moulding process is simple, flow process weak point, less investment, energy consumption are low, so be widely used in industries such as metallurgy, chemical industry, coal, refractory materials, building materials.
The high-temperature molding sticker mainly contains wilkinite, lime, KLP etc., and the sticker that is used for cold fixed moulding mainly contains cement, pitch, humate etc.Mineral binder bond all certainly exists and makes the spinoff that harmful element increases in the iron ore concentrate, and might make pelletizing metallurgical performance variation, even causes environmental pollution.Inherent advantage of organic binder bond be exactly their in the pellet roasting process by volatilization or burnt, and major part can make the physical strength of pellet have clear improvement, some can also make the pelletizing metallurgical performance improve, but that the problem of its existence is exactly a cost is too high.
Summary of the invention
To the above-mentioned deficiency that prior art exists, the object of the present invention is to provide a kind of will be inorganic and organic materials combine a kind of compound binding agent of exploitation, be used for the breeze post-treatment that bonds is become the Mineral powder shaping sticker of pelletizing; Its cost is low, and performance is good, can be widely used in the moulding of breeze.
Technical scheme of the present invention: the Mineral powder shaping sticker is characterized in that comprising the component of following parts by weight:
SEPIGEL 305: 3-5 part;
Calcium sulfate: 7-10 part;
Yellow soda ash: greater than 0 to 10 part;
A kind of method of use of above-mentioned Mineral powder shaping sticker is characterized in that:
1) each component of sticker is added in the breeze by aforementioned proportioning, wherein the weight of sticker accounts for the 0.1-0.5% of breeze weight;
2) compound of step 1) is carried, or joined damp mill or high-pressure roller mill, carry out abrasive material, when mixing, make the granularity of compound satisfy processing requirement with damp mill or high-pressure roller mill;
3) with the mass transport that mixes in pelletizer, make ball; The shape of pelletizing, size are confirmed according to arts demand;
4) the moulding pelletizing is transported to shaft furnace or grate kiln high-temperature roasting, obtains qualified pelletizing.
Be further characterized in that: the component that also comprises following two kinds of parts by weight:
Red iron oxide: greater than 0 to 20 part;
Wilkinite: greater than 0 to 40 part.
A kind of method of use of above-mentioned Mineral powder shaping sticker is characterized in that:
1) the aforementioned proportioning of each component of sticker is added in the breeze, wherein the sticker add-on is the 1-5% of powdered ore quality;
2) with intensive mixer or other suitable blending devices above-mentioned compound is mixed;
3) select suitable pressure ball equipment for use, with above-mentioned compound extrusion molding, the shape of pelletizing, size are confirmed according to arts demand on pressure ball equipment;
4) the moulding pelletizing is arrived finished product place or storehouse seasoning or oven dry through conveyor delivery, obtain qualified pelletizing.
Mineral powder shaping sticker of the present invention with respect to prior art, has the following advantages:
1, add-on is few, and cost is low;
2, can significantly improve the low-temperature performance and the high-temperature behavior of pelletizing;
3, do not bring into ironmaking, the deleterious composition of making steel;
4, successfully overcome mineral binder bond the grade of pellet is reduced, the shortcoming of metallurgical performance variation, and the high problem of organic binder bond cost have broad application prospects.
Embodiment
Through embodiment the present invention is described further below.
Mineral powder shaping sticker of the present invention is characterized in that comprising the component of following weight (quality):
SEPIGEL 305: 3-5 part;
Calcium sulfate: 7-10 part;
Yellow soda ash: greater than 0 to 10 part;
Red iron oxide is similar with the red stone chemical ingredients, red iron oxide is common pigment, does paint usefulness, so the red iron oxide of crying.
What component of the present invention constituted is a kind of high-temperature molding sticker, forms by making globule, hardening accelerator, lattice transforming agent, detonation suppressor etc., and its method of use is:
1) each component of sticker is added in the breeze (satisfying the concentrate of granularity requirements) by aforementioned proportioning, mix mutually, wherein the weight of sticker accounts for the 0.1-0.5% of breeze weight; The concrete add-on of selecting is: 0.15%, 0.2%, 0.25%, 0.3%, 0.35%, 0.4%, 0.45%, 0.5% etc.;
2) compound that has added molding adhesive of the present invention in the step 1) is carried, or joined damp mill or high-pressure roller mill, carry out abrasive material, make the granularity of compound satisfy processing requirement when material is mixed with damp mill or high-pressure roller mill;
3) with the mass transport that mixes in palletizing device, in existing pelletizer, make ball; The shape of pelletizing, size are confirmed according to arts demand;
4) the moulding pelletizing is passed through modes such as artificial or conveyor delivery, be transported to shaft furnace or grate kiln high-temperature roasting, obtain qualified pelletizing;
The index of correlation data of the pelletizing that 5) obtains are following: green-ball fall greater than 4 times/individual; Resistance to compression is greater than 8N/; Burst temperature is greater than 500 ℃; The finished ball resistance to compression is greater than 2500 N/.
High-temperature molding technology of the present invention: breeze (iron ore powder), each component of sticker mix through unit's dish proportioning machine by aforementioned ratio, are transported to pelletizer through belt again, after the balling-up with shaft furnace or grate kiln high-temperature roasting.Unit's dish proportioning machine, pelletizer, shaft furnace, grate kiln etc. all are one type of prior art syringe, are not further described at this.Adopt the technology of prior art to carry out high-temperature roasting, satisfy processing requirement at shaft furnace or grate kiln.
Another kind of Mineral powder shaping sticker of the present invention is characterized in that comprising the component of following weight (quality):
SEPIGEL 305: 3-5 part;
Calcium sulfate: 7-10 part;
Yellow soda ash: greater than 0 to 10 part;
Red iron oxide: greater than 0 to 20 part;
Wilkinite: greater than 0 to 40 part;
What second kind of component of the present invention constituted is a kind of cold solid molding adhesive, forms by making globule, hardening accelerator, lattice transforming agent, detonation suppressor etc., and its method of use is:
1) sticker is mixed with breeze (satisfying the powdered iron ore of granularity requirements) mutually; Iron charge is a powdered iron ore; Also can be iron content secondary resource (like sintering dust separation ash, blast-furnace dust, roll scale, iron filings, steel-making converter mud etc.), wherein the sticker add-on is the 1-5% of powdered ore quality; The concrete add-on of selecting is: 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5% etc.;
2) with intensive mixer or other suitable blending devices above-mentioned compound is mixed;
3) select suitable palletizing device for use, like the pressure ball equipment of prior art, with the material extrusion molding, the shape of pelletizing, size are confirmed according to arts demand on palletizing device;
4) the moulding pelletizing is passed through modes such as artificial or conveyor delivery, be transported to finished product place or storehouse seasoning or oven dry, obtain qualified pelletizing;
5) cold-consolidated ball (dry bulb) ultimate compression strength is greater than 2000 N/.
Cold solid moulding process of the present invention: the mixture that will stir, mixes arrives roller briquetting machine through conveyor delivery; Start roller briquetting machine; Then the moulding pelletizing is arrived finished product place or storehouse seasoning or oven dry through conveyor delivery; The time of seasoning or oven dry is confirmed according to processing requirement, or adopts the correlation time of prior art.This sticker is suitable for producing fluxed pellets, cold-bonded carbonic pellet, titaniferous furnace retaining pelletizing, direct pre-reduced pellet such as reduction and melting and reducing.
SEPIGEL 305 of the present invention, the ratio range that can select for use are 3 parts, 3.2 parts, 3.4 parts, 3.5 parts, 3.8 parts, 4.0 parts, 4.2 parts, 4.5 parts, 4.6 parts, 4.8 parts, 5 parts; Calcium sulfate of the present invention, the ratio range that can select for use are 7 parts, 7.2 parts, 7.4 parts, 7.5 parts, 7.8 parts, 8 parts, 8.2 parts, 8.4 parts, 8.5 parts, 8.8 parts, 9 parts, 9.2 parts, 9.5 parts, 9.8 parts, 10 parts; Yellow soda ash of the present invention, the ratio range that can select for use are 0.1 part, 0.2 part, 0.5 part, 0.8 part, 1 part, 1.5 parts, 2 parts, 2.5 parts, 3 parts, 3.5 parts, 4 parts, 4.5 parts, 5 parts, 5.5 parts, 6 parts, 6.5 parts, 7 parts, 7.5 parts, 8 parts, 8.5 parts, 9 parts, 9.5 parts, 10 parts etc.; Red iron oxide of the present invention, the ratio range that can select for use are 0.1 part, 0.2 part, 0.5 part, 0.8 part, 1 part, 1.5 parts, 2 parts, 2.5 parts, 3 parts, 3.5 parts, 4 parts, 4.5 parts, 5 parts, 5.5 parts, 6 parts, 6.5 parts, 7 parts, 7.5 parts, 8 parts, 8.5 parts, 9 parts, 9.5 parts, 10 parts, 11 parts, 12 parts, 13 parts, 14 parts, 15 parts, 16 parts, 17 parts, 18 parts, 19 parts, 20 parts etc.; Wilkinite of the present invention; The ratio range that can select for use is 0.1 part, 0.2 part, 0.5 part, 0.8 part, 1 part, 2 parts, 5 parts, 8 parts, 10 parts, 12 parts, 15 parts, 18 parts, 20 parts, 23 parts, 25 parts, 28 parts, 30 parts, 32 parts, 35 parts, 38 parts, 40 parts, can both satisfy needs of the present invention.
Because mineral binder bond and organic binder bond all have advantage and deficiency in the Mineral powder shaping process, so the present invention combines both, the method for maximizing favourable factors and minimizing unfavourable ones out goes out compound binding agent.The present invention is the basis with the pelletizing theory of consolidation, from pellet formation technology, can replace simple mineral binder bond and organic binder bond fully, is the ideal product that ironmaking system is carried Fe and reducing Si.Sticker of the present invention is formed by making globule, hardening accelerator, lattice transforming agent, detonation suppressor etc., does not bring into ironmaking, the deleterious composition of making steel.
Claims (2)
1. Mineral powder shaping sticker is characterized in that comprising the component of following parts by weight:
SEPIGEL 305: 3-5 part;
Calcium sulfate: 7-10 part;
Yellow soda ash: greater than 0 to 10 part;
Red iron oxide: greater than 0 to 20 part;
Wilkinite: greater than 0 to 40 part.
2. the method for use of the described Mineral powder shaping sticker of claim 1 is characterized in that:
1) each component of sticker is added in the breeze according to said proportioning, wherein the sticker add-on is the 1-5% of powdered ore quality;
2) with intensive mixer or other suitable blending devices above-mentioned compound is mixed;
3) select suitable pressure ball equipment for use, with above-mentioned compound extrusion molding, the shape of pelletizing, size are confirmed according to arts demand on pressure ball equipment;
4) the moulding pelletizing is arrived finished product place or storehouse seasoning or oven dry through conveyor delivery, obtain qualified pelletizing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105867946A CN102121065B (en) | 2010-12-14 | 2010-12-14 | Mineral powder moulding binder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105867946A CN102121065B (en) | 2010-12-14 | 2010-12-14 | Mineral powder moulding binder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102121065A CN102121065A (en) | 2011-07-13 |
| CN102121065B true CN102121065B (en) | 2012-11-14 |
Family
ID=44249731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105867946A Expired - Fee Related CN102121065B (en) | 2010-12-14 | 2010-12-14 | Mineral powder moulding binder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102121065B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103693929A (en) * | 2013-12-17 | 2014-04-02 | 苏州久德机电科技有限公司 | Preparation method of elevator counterweight |
| CN104152206B (en) * | 2014-08-26 | 2016-04-06 | 张瑞瑜 | Flying dust, chromium slag, electroplating sludge hazardous waste recycling processing method |
| CN105219956B (en) * | 2015-10-30 | 2017-07-18 | 兰州大学 | A kind of preparation method of iron powder coal-pressing ball compound binding agent |
| CN112251615A (en) * | 2020-10-22 | 2021-01-22 | 西安建筑科技大学 | Method and device for controlling raw material moisture and smelting dust in lead bottom blowing smelting |
| CN112725618A (en) * | 2020-12-25 | 2021-04-30 | 广西柳钢环保股份有限公司 | Special binder for converter dedusting cold-pressed pellets |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1099423A (en) * | 1994-06-30 | 1995-03-01 | 潘金海 | Organic binder for metallurgy |
| CN1814825A (en) * | 2006-01-25 | 2006-08-09 | 武汉科技大学 | Adhesive for iron-ore pelletizing and preparing method |
| CN101805827A (en) * | 2009-02-12 | 2010-08-18 | 宝山钢铁股份有限公司 | Purpose of heavy metal sludge, acid pellet and preparation method and purpose thereof |
-
2010
- 2010-12-14 CN CN2010105867946A patent/CN102121065B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1099423A (en) * | 1994-06-30 | 1995-03-01 | 潘金海 | Organic binder for metallurgy |
| CN1814825A (en) * | 2006-01-25 | 2006-08-09 | 武汉科技大学 | Adhesive for iron-ore pelletizing and preparing method |
| CN101805827A (en) * | 2009-02-12 | 2010-08-18 | 宝山钢铁股份有限公司 | Purpose of heavy metal sludge, acid pellet and preparation method and purpose thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102121065A (en) | 2011-07-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103602804B (en) | A kind of high performance pellet binder | |
| CN101270410A (en) | Cold bonded pellet and method of producing the same | |
| CN103114201B (en) | Agglomeration method for iron containing dust slime of iron and steel plants | |
| CN109266847B (en) | Preparation method of low-temperature consolidated metallurgical pellets | |
| CN102121065B (en) | Mineral powder moulding binder | |
| CN101701289A (en) | Method for intensifying limonite sintering | |
| CN102925675B (en) | Method for recovering sludge from smelting ironmaking | |
| CN105219956A (en) | A kind of preparation method of iron powder coal-pressing ball compound binding agent | |
| CN1804057A (en) | Method for making pellet by fine-grinded steel slag instead of bentonite | |
| CN111910072A (en) | Preparation and use methods of pre-reduced fluxed pellets with steel slag as partial raw material | |
| CN103614548B (en) | Method for producing sinter from hematite concentrate powder | |
| CN107488784B (en) | A kind of blast furnace ironmaking superfluxed pellets and its production method | |
| CN103710536A (en) | Preparation method of pellet binder with high performance | |
| CN103725875B (en) | High-performance pellet | |
| CN103160302B (en) | Processing method of metallurgical dust mud containing iron carbon zinc | |
| CN106811597A (en) | A kind of method that utilization limekiln exhaust gas produce blast furnace cold-bonded carbonaceous pelletizing | |
| CN112813258B (en) | Method for producing alkaline pellets by utilizing neutralized slag and sulfuric acid slag | |
| CN103937971A (en) | Preparation method of iron-ore hot-pressed carbon-containing pellet and iron-making raw material | |
| CN103468943A (en) | Cold-pressing pallet production process of chromium fine ore | |
| CN105331808A (en) | Method for iron ore powder agglomeration | |
| CN103627897B (en) | Rich iron cooled agglomerated pellet and manufacturing process thereof and purposes | |
| CN103146914B (en) | Cold-pressed high-strength fluorite pellet binder and use method thereof | |
| CN104073630A (en) | Iron base carbonaceous pellet using waste plastics as carbon source and preparation method of iron base carbonaceous pellet | |
| CN100529003C (en) | Binder adapted for production of cooled agglomerated pellet by using iron-bearing material | |
| CN104962685A (en) | Vanadium extraction cooling agent and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121114 Termination date: 20161214 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |