CN106191433A - A kind of ball press technique of small grain size molybdenum-iron - Google Patents
A kind of ball press technique of small grain size molybdenum-iron Download PDFInfo
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- CN106191433A CN106191433A CN201610664704.8A CN201610664704A CN106191433A CN 106191433 A CN106191433 A CN 106191433A CN 201610664704 A CN201610664704 A CN 201610664704A CN 106191433 A CN106191433 A CN 106191433A
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- iron
- molybdenum
- grain size
- small grain
- ball press
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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
- C22B1/244—Binding; Briquetting ; Granulating with binders organic
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- Geochemistry & Mineralogy (AREA)
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- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Fodder In General (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention provides the ball press technique of a kind of small grain size molybdenum-iron, this technique is: first add binding agent in small grain size molybdenum-iron, mixed dry material is obtained after mix homogeneously, then spray water to described mixed dry material, obtain after stirring mixing wet feed, use high-pressure ball press that described mixing wet feed is pressed into wet bulb group again, finally described wet bulb group is placed in the constant temperature oven that temperature is 120 DEG C~150 DEG C drying 60min~90min, obtains molybdenum-iron pressure ball;Described small grain size molybdenum-iron is the molybdenum-iron that granularity is less than 10mm.The ball press technique of the present invention is simple, and investment of production is less, and production cost is low, production efficiency is high, and pollution level is low, and molybdenum-iron pressure ball quality complies fully with the prescription in standard GB/T/T 3,649 2008 about molybdenum-iron, belong to leading technology in molybdenum-iron industry, there is promotional value widely.
Description
Technical field
The invention belongs to molybdenum-iron processing technique field, be specifically related to the ball press technique of a kind of small grain size molybdenum-iron.
Background technology
Granularity is the intermediate products produced in molybdenum-iron production process less than 10mm molybdenum-iron, and chemical index complies fully with molybdenum-iron state
Mark requirement, but due to reasons such as its undersized, at home and abroad market fails as molybdenum-iron production marketing.And produce as molybdenum-iron
Producer, is always less than 10mm molybdenum-iron quantum of output as a most important molybdenum-iron production target, the size of its quantum of output using granularity
It is related to the many indexs such as molybdenum-iron yield, cost of supplementary product, the response rate, stock's amount of metal.It is produced as with 20,000 tons of molybdenum-irons of annual production
Example, calculates less than 10mm molybdenum-iron average rate of output 18% according to granularity, will produce the granularity of 3600 tons every year less than 10mm molybdenum
Ferrum.These small grain size molybdenum-iron produced in a large number, generally simply melts down its secondary in molybdenum-iron manufacturer, again carries out melting.
Also need to during due to melting provide heat into it, cause again the secondary consumption of molybdenum-iron adjuvant.Meanwhile, can produce again new time broken
0 10 small grain size molybdenum-irons.It can be said that granularity has become the bottleneck difficult problem during Present Domestic molybdenum-iron produces less than 10mm molybdenum-iron.
Summary of the invention
The technical problem to be solved is for above-mentioned the deficiencies in the prior art, it is provided that a kind of small grain size molybdenum
The ball press technique of ferrum.This ball press technique is simple, invests less, and production cost is low, and production efficiency is high, and pollution level is low, product matter
Amount height, belongs to leading technology in molybdenum-iron industry, has promotional value widely.
For solving above-mentioned technical problem, the technical solution used in the present invention is: the ball press technique of a kind of small grain size molybdenum-iron, its
Being characterised by, this technique is: first adds binding agent in small grain size molybdenum-iron, obtains mixed dry material, then to institute after mix homogeneously
State mixed dry material water spray, obtain after stirring mixing wet feed, then use high-pressure ball press to be pressed into wet by described mixing wet feed
Pelletizing, is finally placed in described wet bulb group in the constant temperature oven that temperature is 120 DEG C~150 DEG C drying 60min~90min, obtains
Molybdenum-iron pressure ball;Described small grain size molybdenum-iron is the molybdenum-iron that granularity is less than 10mm.
The ball press technique of above-mentioned a kind of small grain size molybdenum-iron, it is characterised in that described binding agent is polyanion cellulose
Or sodium carboxymethyl cellulose.
The ball press technique of above-mentioned a kind of small grain size molybdenum-iron, it is characterised in that the addition of described binding agent is described little
The 0.1%~1% of granularity molybdenum-iron quality, the consumption of described water is the 0.8%~2% of described small grain size molybdenum-iron quality.
The ball press technique of above-mentioned a kind of small grain size molybdenum-iron, it is characterised in that the addition of described binding agent is described little
The 0.3%~0.8% of granularity molybdenum-iron quality, the consumption of described water is the 1%~1.8% of described small grain size molybdenum-iron quality.
The ball press technique of above-mentioned a kind of small grain size molybdenum-iron, it is characterised in that the time of described stirring be 5min~
30min。
The ball press technique of above-mentioned a kind of small grain size molybdenum-iron, it is characterised in that the operating pressure of described high-pressure ball press is
16MPa~18MPa.
The present invention compared with prior art has the advantage that
1, the technique of the present invention is simple, and equipment investment is less, and production cost is low, and production efficiency is high, and pollution level is low, product
Quality is high, belongs to leading technology in molybdenum-iron industry, has promotional value widely.
2, use the ball press technique of the present invention, the granularity molybdenum-iron less than 10mm is made molybdenum-iron pressure ball, simply changes molybdenum
The physical state of ferrum, does not change the element index of molybdenum-iron self, melts down without the molybdenum-iron secondary that granularity is less than 10mm,
Melting again, has saved the energy, and has solved bottleneck problem during the granularity molybdenum-iron molybdenum-iron at home less than 10mm produces.
Every quality index of the molybdenum-iron pressure ball that 3, prepared by the present invention complies fully with in standard GB/T/T3649-2008 and closes
Minimal amount of binding agent and water is added, the quality base to molybdenum-iron during the prescription of molybdenum-iron, the molybdenum-iron pressure ball of preparation
This does not produce impact, and the price of binding agent is cheap, makes whole production cost reduce.
Below by embodiment, technical scheme is described in further detail.
Detailed description of the invention
Embodiment 1
The ball press technique of the present embodiment small grain size molybdenum-iron is: first add poly-the moon of 5kg in the small grain size molybdenum-iron of 1000kg
Ion fiber element, obtains mixed dry material, then to the water of described mixed dry material spray 14kg, obtains after stirring after mix homogeneously
Mixing wet feed, then use high-pressure ball press that described mixing wet feed is pressed into wet bulb group, finally described wet bulb group is placed in temperature
It is drying 75min in the constant temperature oven of 135 DEG C, obtains molybdenum-iron pressure ball;Described small grain size molybdenum-iron is the molybdenum-iron that granularity is less than 10mm;
The time of described stirring is 25min;The operating pressure of described high-pressure ball press is 17MPa.
The manufacturer of the high-pressure ball press described in the present embodiment is Great Wall machinery plant of Henan Gongyi City, and model is
GQ430A。
The smooth appearance of molybdenum-iron pressure ball prepared by the present embodiment is uniform, and uniform particle sizes, the molybdenum-iron pressure ball of preparation meets country
Requirement to molybdenum-iron quality in standard GB/T 3649-2008, the intensity of each molybdenum-iron pressure ball of preparation is all higher than 83 kilograms, side
Just the transport of molybdenum-iron pressure ball and carrying, it is to avoid rupture in transportation.
Embodiment 2
The ball press technique of the present embodiment small grain size molybdenum-iron is: add in the small grain size molybdenum-iron of 1000kg poly-the moon of 3kg from
Subbundle element and water, then stir, and obtains mixing wet feed,
In the small grain size molybdenum-iron of 1000kg, first add the polyanion cellulose of 3kg, obtain mixing after mix homogeneously dry
Material, then to the water of described mixed dry material spray 10kg, obtains after stirring mixing wet feed, then uses high-pressure ball press by described
Mixing wet feed is pressed into wet bulb group, and described wet bulb group is finally placed in the constant temperature oven that temperature is 120 DEG C drying 90min,
To molybdenum-iron pressure ball;Described small grain size molybdenum-iron is the molybdenum-iron that granularity is less than 10mm;The time of described stirring is 5min;Described high pressure pressure
The operating pressure of ball machine is 16MPa.
The manufacturer of the high-pressure ball press described in the present embodiment is Great Wall machinery plant of Henan Gongyi City, and model is
GQ430A。
The smooth appearance of molybdenum-iron pressure ball prepared by the present embodiment is uniform, and uniform particle sizes, the molybdenum-iron pressure ball of preparation meets country
Requirement to molybdenum-iron quality in standard GB/T 3649-2008, the intensity of each molybdenum-iron pressure ball of preparation is all higher than 83 kilograms, side
Just the transport of molybdenum-iron pressure ball and carrying, it is to avoid rupture in transportation.
Embodiment 3
The ball press technique of the present embodiment small grain size molybdenum-iron is:: in the small grain size molybdenum-iron of 1000kg, first add poly-the moon of 8kg
Ion fiber element, obtains mixed dry material, then to the water of described mixed dry material spray 18kg, obtains after stirring after mix homogeneously
Mixing wet feed, then use high-pressure ball press that described mixing wet feed is pressed into wet bulb group, finally described wet bulb group is placed in temperature
It is drying 60min in the constant temperature oven of 150 DEG C, obtains molybdenum-iron pressure ball;Described small grain size molybdenum-iron is the molybdenum-iron that granularity is less than 10mm;
The time of described stirring is 30min;The operating pressure of described high-pressure ball press is 18MPa.
The manufacturer of the high-pressure ball press described in the present embodiment is Great Wall machinery plant of Henan Gongyi City, and model is
GQ430A。
The smooth appearance of molybdenum-iron pressure ball prepared by the present embodiment is uniform, and uniform particle sizes, the molybdenum-iron pressure ball of preparation meets country
Requirement to molybdenum-iron quality in standard GB/T 3649-2008, the intensity of each molybdenum-iron pressure ball of preparation is all higher than 83 kilograms, side
Just the transport of molybdenum-iron pressure ball and carrying, it is to avoid rupture in transportation.
Embodiment 4
The ball press technique of the present embodiment small grain size molybdenum-iron is:: in the small grain size molybdenum-iron of 1000kg, first add the carboxylic first of 1kg
Base sodium cellulosate, obtains mixed dry material, then to the water of described mixed dry material spray 8kg, obtains after stirring after mix homogeneously
Mixing wet feed, then use high-pressure ball press that described mixing wet feed is pressed into wet bulb group, finally described wet bulb group is placed in temperature
It is drying 80min in the constant temperature oven of 130 DEG C, obtains molybdenum-iron pressure ball;Described small grain size molybdenum-iron is the molybdenum-iron that granularity is less than 10mm;
The time of described stirring is 20min;The operating pressure of described high-pressure ball press is 18MPa.
The manufacturer of the high-pressure ball press described in the present embodiment is Great Wall machinery plant of Henan Gongyi City, and model is
GQ430A。
The smooth appearance of molybdenum-iron pressure ball prepared by the present embodiment is uniform, and uniform particle sizes, the molybdenum-iron pressure ball of preparation meets country
Requirement to molybdenum-iron quality in standard GB/T 3649-2008, the intensity of each molybdenum-iron pressure ball of preparation is all higher than 83 kilograms, side
Just the transport of molybdenum-iron pressure ball and carrying, it is to avoid rupture in transportation.
Embodiment 5
The ball press technique of the present embodiment small grain size molybdenum-iron is:: in the small grain size molybdenum-iron of 1000kg, first add the carboxylic of 10kg
Sodium carboxymethylcellulose pyce, obtains mixed dry material after mix homogeneously, then to the water of described mixed dry material spray 20kg, after stirring
To mixing wet feed, then use high-pressure ball press that described mixing wet feed is pressed into wet bulb group, finally described wet bulb group is placed in temperature
Degree is to dry 70min in the constant temperature oven of 140 DEG C, obtains molybdenum-iron pressure ball;Described small grain size molybdenum-iron is the molybdenum that granularity is less than 10mm
Ferrum;The time of described stirring is 10min;The operating pressure of described high-pressure ball press is 17MPa.
The manufacturer of the high-pressure ball press described in the present embodiment is Great Wall machinery plant of Henan Gongyi City, and model is
GQ430A。
The smooth appearance of molybdenum-iron pressure ball prepared by the present embodiment is uniform, and uniform particle sizes, the molybdenum-iron pressure ball of preparation meets country
Requirement to molybdenum-iron quality in standard GB/T 3649-2008, the intensity of each molybdenum-iron pressure ball of preparation is all higher than 83 kilograms, side
Just the transport of molybdenum-iron pressure ball and carrying, it is to avoid rupture in transportation.
Embodiment 6
The ball press technique of the present embodiment small grain size molybdenum-iron is:: in the small grain size molybdenum-iron of 1000kg, first add the carboxylic of 5.5kg
Sodium carboxymethylcellulose pyce, obtains mixed dry material after mix homogeneously, then to the water of described mixed dry material spray 16kg, after stirring
To mixing wet feed, then use high-pressure ball press that described mixing wet feed is pressed into wet bulb group, finally described wet bulb group is placed in temperature
Degree is to dry 65min in the constant temperature oven of 140 DEG C, obtains molybdenum-iron pressure ball;Described small grain size molybdenum-iron is the molybdenum that granularity is less than 10mm
Ferrum;The time of described stirring is 18min;The operating pressure of described high-pressure ball press is 18MPa.
The manufacturer of the high-pressure ball press described in the present embodiment is Great Wall machinery plant of Henan Gongyi City, and model is
GQ430A。
The smooth appearance of molybdenum-iron pressure ball prepared by the present embodiment is uniform, and uniform particle sizes, the molybdenum-iron pressure ball of preparation meets country
Requirement to molybdenum-iron quality in standard GB/T 3649-2008, the intensity of each molybdenum-iron pressure ball of preparation is all higher than 83 kilograms, side
Just the transport of molybdenum-iron pressure ball and carrying, it is to avoid rupture in transportation.
The above, be only presently preferred embodiments of the present invention, not impose any restrictions the present invention.Every according to invention skill
Any simple amendment, change and the equivalence change that above example is made by art essence, all still falls within the technology of the present invention side
In the protection domain of case.
Claims (6)
1. the ball press technique of a small grain size molybdenum-iron, it is characterised in that this technique is: first add bonding in small grain size molybdenum-iron
Agent, obtains mixed dry material, then sprays water to described mixed dry material after mix homogeneously, obtain mixing wet feed, then adopt after stirring
With high-pressure ball press, described mixing wet feed being pressed into wet bulb group, it is 120 DEG C~150 DEG C that described wet bulb group is finally placed in temperature
Constant temperature oven in dry 60min~90min, obtain molybdenum-iron pressure ball;Described small grain size molybdenum-iron is the molybdenum-iron that granularity is less than 10mm.
The ball press technique of a kind of small grain size molybdenum-iron the most according to claim 1, it is characterised in that described binding agent is poly-the moon
Ion fiber element or sodium carboxymethyl cellulose.
The ball press technique of a kind of small grain size molybdenum-iron the most according to claim 1, it is characterised in that the interpolation of described binding agent
Amount for described small grain size molybdenum-iron quality 0.1%~1%, the consumption of described water be described small grain size molybdenum-iron quality 0.8%~
2%.
The ball press technique of a kind of small grain size molybdenum-iron the most according to claim 3, it is characterised in that the interpolation of described binding agent
Amount for described small grain size molybdenum-iron quality 0.3%~0.8%, the consumption of described water be described small grain size molybdenum-iron quality 1%~
1.8%.
The ball press technique of a kind of small grain size molybdenum-iron the most according to claim 1, it is characterised in that the time of described stirring is
5min~30min.
The ball press technique of a kind of small grain size molybdenum-iron the most according to claim 1, it is characterised in that described high-pressure ball press
Operating pressure is 16MPa~18MPa.
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Citations (6)
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---|---|---|---|---|
JPS58224125A (en) * | 1982-06-22 | 1983-12-26 | Sumitomo Metal Ind Ltd | Production of non-calcined agglomerated ore having high strength |
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CN1847440A (en) * | 2006-04-25 | 2006-10-18 | 吴江市东大铸造有限公司 | Ni-Cr-Fe alloy and its production process |
CN102618308A (en) * | 2012-04-17 | 2012-08-01 | 于炳正 | 10mm-below granular oil shale cold-pressing sphere and method for oil refining by adopting same |
CN104630450A (en) * | 2015-02-06 | 2015-05-20 | 铜陵百荣新型材料铸件有限公司 | Production process of ferro-molybdenum metallurgical furnace burden |
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2016
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Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS58224125A (en) * | 1982-06-22 | 1983-12-26 | Sumitomo Metal Ind Ltd | Production of non-calcined agglomerated ore having high strength |
CN1704488A (en) * | 2004-05-28 | 2005-12-07 | 上海宝钢国际经济贸易有限公司 | Hot-pressing slab powder press-ball production method |
CN1847440A (en) * | 2006-04-25 | 2006-10-18 | 吴江市东大铸造有限公司 | Ni-Cr-Fe alloy and its production process |
CN102618308A (en) * | 2012-04-17 | 2012-08-01 | 于炳正 | 10mm-below granular oil shale cold-pressing sphere and method for oil refining by adopting same |
CN104630450A (en) * | 2015-02-06 | 2015-05-20 | 铜陵百荣新型材料铸件有限公司 | Production process of ferro-molybdenum metallurgical furnace burden |
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