CN107377212A - Semicoke, coke and activated carbon magnetic separation device for improving quality and method - Google Patents
Semicoke, coke and activated carbon magnetic separation device for improving quality and method Download PDFInfo
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- CN107377212A CN107377212A CN201710598571.3A CN201710598571A CN107377212A CN 107377212 A CN107377212 A CN 107377212A CN 201710598571 A CN201710598571 A CN 201710598571A CN 107377212 A CN107377212 A CN 107377212A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/16—Magnetic separation acting directly on the substance being separated with material carriers in the form of belts
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Abstract
A kind of semicoke, coke and activated carbon magnetic separation device for improving quality and method, methods described include：S1:By the ㎜ of granularity 1~120, dry distillation of coal product semicoke, coke and the activated carbon of fixed carbon 70~82% are deposited in sorting stock ground；S2:The magnetic separation device for improving quality is opened, material is placed on the conveyer belt of the magnetic separation device for improving quality, the roller that material sorting is used for the magnetic separation device for improving quality carries out tax magnetic；S3：Utilize FeO, Fe in semicoke, coke and ash of active carbon2O3Paramagnetic properties, the separation system through the strong magnet drum with particular magnetic field strength is low to fixed carbon, and high-sulfur, high phosphorus, high titanium products carry out roughing.
Description
Technical field
The present invention relates to mineral separation technical field, and in particular to a kind of semicoke, coke and activated carbon
High intensity magnetic separation method for upgrading.
Background technology
The composition of coal is extremely complex, is the mixture being made up of inorganic component and organic component.Inorganic component mainly includes
The mineral matters such as clay mineral, quartz, gypsum, pyrite and adsorb water organic component in coal mainly by carbon, hydrogen, oxygen, nitrogen,
The mixture for the complicated macromolecular organic compound that the elements such as sulphur are formed.In general, the inorganic component in coal adds to coal
Work is using being harmful, and organic component is the chief component of coal, and the main object of coal processing and utilization.
Semicoke, coke and activated carbon be coal in the case where completely cutting off air conditionses by the product of thermosetting.Coal meeting in thermal histories
Generation coal gas, tar, crude benzol and coke are decomposed, this is referred to as the dry distillation of coal.Coal carbonization product uses as the energy or industrial chemicals
When, mineral matter or ash content in coal carbonization product be it is unfavorable, it is even harmful, it is necessary to remove as far as possible.
Also：(1) coal is mass transport goods and materials in China, and the mineral matter or ash content in coal just necessarily cause transport power more
Waste；(2) during coking of coal, the mineral matter in coal transforms into ash content and entered in coal carbonization product.The increase of ash content
The mechanical strength for causing semicoke is declined.During for ferroalloy smelting, coal carbonization product ash content is high, will make under furnace processor
Drop, consumption of raw materials increase.Usual coal carbonization product ash content increase by 1%, ferroalloy smelting coke ratio improves 2%~2.5%, hydrotropy
Agent amount of lime increase by 2%, furnace processor declines 2.5%~3%；(3) when being used as gasified raw material or power fuel, ash content
Greatly, then the thermal efficiency is low.Ash content often increases by 1%, coal carbonization product dosage increase by 2%~2.5.In addition, after in order to handle burning
Lime-ash, can also increase cost；(4) it is some in semicoke if not spent hydroprocessing catalyst in the liquefaction of coal carbonization product
Mineral matter such as FeO, Fe2O3Have catalytic action to hydrogenation liquefaction, but further study show that, if hydrogenation liquefaction using catalysis plus
Hydrogen, then mineral matter have inhibitory action to the catalytic activity of catalyst.Generally, the hydrogenation liquefaction of coal carbonization product is using catalysis
Agent, therefore, the mineral matter in coal carbonization product is also harmful to liquefaction.
The content of the invention
In order to overcome shortcoming present in prior art, it is an object of the invention to provide a kind of efficient, low input, technique
Simply, quick, strong adaptability, coal carbonization product magnetic separation device for improving quality and the side of the various index demands in market be can adapt to
Method.
For the above-mentioned purpose, the present invention adopts the following technical scheme that：
A kind of semicoke, coke and activated carbon magnetic separation device for improving quality, including：Conveyer belt, roller, the conveyer belt are used to carry
The semicoke, coke or the activated carbon for needing to sort are sorted material, and roller is used to drive conveyer belt to move, while is being divided
The roller that one end that material selection leaves the conveyer belt is set has magnetic, and the roller is multiple, the multiple roller
In comprise at least a strong magnet drum that can produce high-intensity magnetic field, at least one roller is actively to roll in the multiple roller
Cylinder, the drive roll are connected with power source, drive the drive roll to rotate by external power supply, so as to drive conveyer belt
Moved with other driven rollers.
As the presently preferred embodiments, the magnetic field intensity of the strong magnet drum is 5000-20000 oersteds.
As the presently preferred embodiments, the electromagnet or permanent magnetism that the strong magnetic force of the strong magnet drum is set from its drums inside
Iron.
As the presently preferred embodiments, the conveyer belt is to arrange that the angle is not zero with the horizontal the mode of angle.
As the presently preferred embodiments, the conveyer belt and horizontal plane are parallel arrangements.
As the presently preferred embodiments, in order to which loaded material is convenient, the magnetic separation device for improving quality adds hopper, and the outlet of hopper is just
Side is carried to the material of conveyer belt.
A kind of magnetic separation method for upgrading of semicoke, coke and activated carbon, including：
S1:By the ㎜ of granularity 1~120, dry distillation of coal product semicoke, coke or the activated carbon of fixed carbon 70~82% are deposited in point
Sorting field；
S2:The magnetic separation device for improving quality is opened, material is placed on the conveyer belt of the magnetic separation device for improving quality, to described
The roller that magnetic separation device for improving quality is used for material sorting carries out tax magnetic；
S3：Utilize FeO, Fe in semicoke, coke and ash of active carbon2O3Paramagnetic properties, through with the strong of particular magnetic field strength
The separation system of magnet drum, low to fixed carbon, high-sulfur, high phosphorus, high titanium products carry out roughing.
As the presently preferred embodiments, the result of the roughing is：Obtain more than 75% high quality retorted product and less than 25%
Low-quality product；Described coal carbonization product fixed carbon index can bring up to 80~86%, and sulphur, phosphorus, titanium percentage composition can
Decline 0.002~0.012%, activated carbon iodine number can improve 200mg/g or so.
As the presently preferred embodiments, the particular magnetic field strength is 5000-10000 oersteds, for example, 5500 oersteds,
6000 oersteds, 6500 oersteds, 7100 oersteds, 7800 oersteds, 8500 oersteds, 9000 oersteds, 9500 oersteds
Deng.
As the presently preferred embodiments, methods described further comprises：
S4：Concentration step can be further set as needed, the material product after roughing are further sorted；In essence
Select step that the magnetic field intensity of the strong magnet drum is arranged into 10000-20000 oersteds, for example, 10500 oersteds, 11000
Oersted, 12000 oersteds, 14000 oersteds, 16000 oersteds, 18000 oersteds, 18700 oersteds, 19500 it is difficult to understand this
Top grade.
The advantage of the invention is that：Using strong magnetic as upgrading device, peace is designed according to the actual conditions of production technology
Dress.Utilize FeO, Fe in semicoke, coke and ash of active carbon2O3Paramagnetism, by the big charcoal spoil of ash content or burnt removal in product heap
Outside.
It is an advantage of the invention that after the dry distillation of coal produces finished product, made a return journey with simple, effective, less investment, quick method
Except most of ash content contained by semicoke, and fixed carbon is effectively improved, ash content is reduced, the purpose for improving product quality can be realized.Can generation
For washed coal technique, most of ash content contained by semicoke is removed with most simple, most effective, less investment, quick method, can be had
Effect improves fixed carbon, reduces ash content and can realize the purpose for improving product quality.
Brief description of the drawings
Fig. 1 is a kind of structural representation of embodiment of magnetic separation device for improving quality of the present invention；
Fig. 2 is the structural representation of another embodiment of magnetic separation device for improving quality of the present invention；
Fig. 3 is that paramagnetic semicoke sample and paramagnetic semicoke sample sample drawing, left side are not that paramagnetic semicoke sample, right side are not paramagnetic semicokes
Sample；
Wherein, 1- conveyer belts, roller -2, hopper -3.
Embodiment
This concept of magnet is a not strange concept for the mankind, and it can produce magnetic field, has attraction ferromagnetic
The characteristic of the property material such as metal such as iron, nickel, cobalt.Magnet can be divided into " permanent magnet " and " impermanent magnet ".Permanent magnet can be with
It is natural products, also known as loadstone can also be by manually manufacturing.Non-permanent magnet, such as electromagnet, only at some
Magnetic just occurs under part.Permanent magnet is to add strong magnetic, the spin of magnetisable material is arranged with electronic angular momentum into fixed-direction
Row, soft magnetism are then to produce magnetic force plus electricity, and electric current removes the material that soft iron can slowly lose magnetism.
People are with a long history using magnet, are mainly used in following technical field according to era development demand：Traditional work
Industry field：Such as, numerous instrument and meters such as generator, transformer, motor, telephone set, loudspeaker will use magnet steel coil knot
Structure.Living nature and medical field field：Such as, pigeon is taken one's bearings using magnetic field of the earth sensing, nmr imaging technique etc..My god
Text, geology, archaeology, mining and ore dressing field：Such as, the earth is one block of huge magnet, and it and geological state have very big contact,
With the magnetic field in universe also have it is close contact, according to earth self-characteristic and the earth and the relation in universe, people realize
The hope closely studied space object；According to the change of materials on the earth or strong or weak magnetic and earth magnetism, explore out
Various mineral deposits；Different geochronic rocks often have different magnetic, therefore, can aid in sentencing according to the magnetic of rock
Disconnected geochronic change and variation.Many mining depositses are all symbiosis, that is to say, that several mineral matters mix,
They have different magnetic.Using this feature, magnetic separator is developed, utilizes the different magnetic of heterogeneity mineral matter
And the difference of magnetic strength, with these materials of attraction, then as a result the attraction suffered by them may be used with regard to otherwise varied
So that the mineral matter of the different magnetic to mix to be separated, magnetic ore dressing is realized.Military field：Such as, magnetic sensor is installed
Submarine mine and land mine, apply the military aircraft, ELECTROMAGNETIC WEAPON etc. of special electromagnetic wave absorbing material.
In order to preferably embody the reliability of magnetic separation method for upgrading, following emphasis tells about the relevant letter of coal and semicoke
Breath：
The composition of coal is extremely complex, is the mixture for having inorganic component and organic component to form.Inorganic component mainly includes
The water organic component of the mineral matters such as clay mineral, quartz, gypsum, pyrite and absorption in coal, the organic component are mainly
The mixture for the complicated macromolecular organic compound being made up of elements such as carbon, hydrogen, oxygen, nitrogen, sulphur.In general, the nothing in coal
Machine component is harmful to the processing and utilization of coal, and organic component is the chief component of coal, and the master of coal processing and utilization
Want object.
The composition of coal is divided into four kinds of components such as moisture, ash content, volatile matter and fixed carbon.In addition to moisture, ash content, wave
Hair point and fixed carbon are the converted product of coal under given conditions, are not the intrinsic components in coal, its measurement result becomes according to condition
Change and change.
Under certain condition, the residue of gained is pit ash to coal after completely burned.Pit ash is not intrinsic in coal
Composition, but be transformed under the high temperature conditions by the mineral matter in coal.Pit ash and mineral matter make a big difference, first
The corresponding content of mineral substances of the productivity ratio of ash content was low before this, next to that great changes have taken place in constituent.Mineral matter is in height
Under temperature, ash content is converted into through decomposing, aoxidizing, after the chemical reaction such as chemical combination.The chemistry that coal occurs in podzolic process mineral
Reaction mainly has following several.
(1) decomposition of Sulfates mineral
(2) oxidation of troilite
(3) clay, gypsum take off the crystallization water
(4) CaO and SO2Reaction
It should be noted that coal, during Actual combustion, the more of complexity are wanted in the conversion of its mineral, it is frequently accompanied by big
Chemical reaction between the product of amount, forms new mineral, and these mineral can be persisted to the state of ash content semicoke, coke and
In activated carbon, impacted for follow-up use.
Semicoke, coke and activated carbon be coal in the case where completely cutting off air conditionses by the product of thermosetting.Coal meeting in thermal histories
Generation coal gas, tar, crude benzol and coke are decomposed, this is referred to as the dry distillation of coal.The dry distillation of coal can be divided into three kinds by the difference of heating final temperature：
500~600 DEG C are low temperature distillation；700~900 DEG C are medium temperature carbonization；900~1100 DEG C are high-temperature retorting.Dry distillation of coal product
Yield and composition depend on feed coal property, destructive distillation furnace structure and heating condition.The porosity of dry distillation of coal product be 30%~
50%, reactivity and ratio resistance are all high.Destructive distillation product application is wider, mainly the excellent charcoal material of ferroalloy smelting, it is desirable to which coal is done
It is as high as possible to evaporate the ratio resistance of product, to ensure that all-in resistance reaches maximum in iron alloy electric furnace pond, saves electric energy.A part is used as
High-quality civilian and fuel used to generate power, because coal carbonization product is smokeless when burning, do not form tar during heating, and most coals by
There is tar generation when hot, emit tobacco when showing general fuel.
Magnetic separation is the one kind for making different minerals realize separation using the magnetic contrast between mineral in non-uniform magnetic field
Beneficiation method.
Magnetic separation is to handle the main method of iron ore, but in semicoke, coke and activated carbon field, because contained by each Regional Coal
Chemical composition differs, moreover iron, titanium belong to micro- reason again in coal constituent, yet there are no application.
Many non-ferrous metals and the mineral of rare metals have different magnetic.When final essence can not be obtained with gravity treatment and flotation
Ore, it can be sorted with magnetic separation with reference to other methods.For example, in the black tungsten rough concentrate obtained with gravity treatment, containing a certain amount of
Cassiterite, there is weak magnetic and after this nonmagnetic feature of cassiterite handled using magnetic method using wolframite, it is qualified to can obtain
Tungsten concentrate.In heavy media coal separation or ore dressing, more using magnetite powder or ferrosilicon as medium solid, due to as dense media
Suspension will be recycled, it is necessary to which medium solid is reclaimed and purified with magnetic method.
It is general all containing harmful iron tramp in nonmetallic raw material, magnetic separation just turn into operation important in nonmetal ore-dressing it
One.For example, when iron content is high in kaolin, kaolinic whiteness, refractoriness and insulating properties all reduce, and have a strong impact on product matter
Amount.Non magnetic ore, it is the mineral that can not be reclaimed at present with magnetic method.This kind of mineral are a lot, such as part metals mineral：Brightness molybdenum
Ore deposit, zincblende, galena, stibnite, scheelite, cassiterite, niccolite, gold etc.；Most of nonmetallic mineral：Coal, sulphurite,
Diamond, kaolin, gypsum, fluorite etc.；Most of rock-forming mineral：Quartz, feldspar, calcite etc..These mineral some belong to
Paramagnet, also some belong to diamagnetic material, such as galena, gold, stibnite and sulphurite.
This method is when once carrying out iron removaling operation to the mixed iron material of semicoke, finds some semicoke product quilt
It is drawn onto after being drawn attention on magnet, has carried out what lot of experiments was drawn to it.Present inventor is based on to mineral
Magnetic selection method and each the foregoing of characteristic is concentrated on studies to semicoke, coke and activated carbon, inventor pays a large amount of creative works
Afterwards, the magnetic separation upgrading solution of following semicoke, coke and activated carbon is proposed：
The present invention provides the magnetic separation device for improving quality (as depicted in figs. 1 and 2) of following semicoke, coke and activated carbon, bag first
Include：Conveyer belt 1, roller 2, hopper 3, concrete structure is as illustrated in fig. 1 and 2.The conveyer belt 1 sorts described for carrying needs
Semicoke, coke or activated carbon, roller 2 is used to drive conveyer belt 1 to move, while leaves the conveyer belt 1 being sorted material
The roller 2 that one end is set has magnetic, and preferably strong magnet drum, the magnetic field intensity of the strong magnet drum is 5000-20000
Oersted.The diameter of the strong magnet drum can according to the material of required sorting number, speed etc. need to set, institute
State the permanent magnet that the strong magnetic force of strong magnet drum is set from its drums inside, or its internal electromagnet set, if
The energy that putting permanent magnet is advantageous in that it need not be outside has magnetic force, and relative energy-conservation, cost is relatively low, and its defect is body
The huge and magnetic field intensity of product immobilizes, and adjustment flexibility is poor.Electromagnet is set to be advantageous in that：Magnetic field intensity adjusts
Flexibly, magnetic field intensity can be adjusted as needed at any time according to the different of the parameters such as the species, quantity, specification for treating sorting material,
Magnetic field only can just produce when needing simultaneously, and the installation, transport for the magnetic separation device for improving quality provide greatly just
Profit.
The cylinder number of the magnetic separation device for improving quality is at least 2, preferably greater than 2 any number of, the multiple rolling
A strong magnet drum that can produce high-intensity magnetic field is comprised at least in cylinder, at least one roller is actively to roll in the multiple roller
Cylinder, the drive roll are connected with power source, drive the drive roll to rotate by external power supply, so as to drive conveyer belt
Moved with other driven rollers.
In certain embodiments, the conveyer belt is to arrange that the angle can be in 0- with the horizontal the mode of angle
45 ° have more excellent practical function；In some other embodiments, the conveyer belt is parallel arrangement with horizontal plane.
In order to which loaded material is convenient, the magnetic separation device for improving quality can add hopper 3.The material of the outlet face conveyer belt of hopper 3 is held
Carry side.
The magnetic separation method for upgrading of specific semicoke, coke and activated carbon is as follows：
S1:By the ㎜ of granularity 1~120, dry distillation of coal product semicoke, coke or the activated carbon of fixed carbon 70~82% are deposited in point
Sorting field；
S2:The magnetic separation device for improving quality is opened, material is placed on the conveyer belt of the magnetic separation device for improving quality, to described
The roller that magnetic separation device for improving quality is used for material sorting carries out tax magnetic；
S3：Utilize FeO, Fe in semicoke, coke and ash of active carbon2O3Paramagnetic properties, through with the strong of particular magnetic field strength
The separation system (e.g., lower Fig. 1,2) of magnet drum, low to fixed carbon, high-sulfur, high phosphorus, high titanium products carry out roughing；
The result of the roughing is：Obtain more than 75% high quality retorted product and less than 25% low-quality product；Institute
The coal carbonization product fixed carbon index stated can bring up to 80~86%, and sulphur, phosphorus, titanium percentage composition can decline 0.002~
0.012%, activated carbon iodine number can improve 200mg/g or so；
The particular magnetic field strength is 5000-10000 oersteds；
S4：Concentration step can be further set as needed, the material product after roughing are further sorted；In essence
Select step that the magnetic field intensity of the strong magnet drum is arranged into 10000-20000 oersteds；The selected result is：Sorting institute
More than 65% high-end product fixed carbon index is obtained up to more than 86%, ash content index is can be controlled within 8%, sulphur, phosphorus, titanium percentage
Content can also decline 0.002~0.012% on the basis of roughing, and activated carbon iodine number can improve 200mg/g or so.Material sulfur content
Substantially 0.08~0.3%, less than 0.15% can be reduced to by magnetic selection method, can reach requirement.
During coal mining, feed coal ash content index for monitoring generally between 5~12%, again can not by semicoke production technology
Solve this problem, so directly affects every quality index of semicoke, coke and activated carbon, cause under product fixed carbon
Drop, sulphur, phosphorus, titanium are exceeded, and certain difficulty is also brought for national requirements for environmental protection and special metallurgy industry index request.Adopted
Semicoke magnetic separation upgrading physical method can tentatively solve knotty problem described above, the trace element distribution feelings according to contained by coal
Condition, on the basis of original product index, fixed carbon can improve 2~5 grades, and sulphur, phosphorus, titanium percentage composition can decline 0.002%~
0.012%.Lot of documents shows that the mineral matter contained by coal is distributed in ash content of coal mostly, the present invention is main make use of through
After low temperature distillation, the high semicoke of the porosity, coke and activated carbon product ingredient FeO, Fe are obtained2O3Paramagnetic properties remove to reach
Most of ash content is removed, improves the purpose of quality and practicality.
It should be further stated that：The illustrative diagram of magnetic separation device for improving quality of the present invention and method can join
The application example that Fig. 1 and 2 is provided is examined, S1 represents paramagnetic material wherein in figure, and S2 represents not paramagnetic material.
To dry distillation of coal product semicoke using in method for upgrading of the present invention sorting experimental data and conclusion such as following table 1-3
It is shown：
The magnetic separation experiment of table 1, phosphorus
A represents ash content in table.
From table 1 can from after products of different specifications magnetic separation, it is main to see outside fixed carbon, the raising of ash content and decline situation
Examine the decline situation of phosphorus.
As it can be seen from table 1 as former state by magnetic separation after, not in paramagnetic material fixed carbon increase rate absolute value 2~
4%, range of decrease relative value is 2-5%, and phosphorus reduces amplitude absolute value 0.004~0.011%, and range of decrease relative value is 10-43%.Can
See, phosphorus content is significantly reduced, so as to meet the needs of client needs strict demand to phosphorus content by magnetic separation.
The magnetic separation experiment of table 2, titanium
Table 2, after reaffirming products of different specifications magnetic separation, fixed carbon, the raising of ash content and decline situation are true outer, mainly
Observe the decline situation of titanium.
It can be seen that titanium component content change from the chemical composition comparative analysis of table 2.Need that can be according to client to Ti content
Ask selection not paramagnetic material or paramagnetic material as target product.
Table 3, high titanium and low titanium 1:1 tests with participating in the experiment
Product specification is 3-120mm in table 3.Here, will be actual after being carried out with two kinds of high and low products of Ti content with joining
Contrasted with ginseng result and imagination result.
Table 3, consideration titanium is in coal under the conditions of complex distribution, and on the basis of the experimental data of table 2, and titanium low to Ti content contains
Amount high product is matched.Here, we are only viewed as the index result of titanium after meet demand is matched.
From the chemical composition analysis of table 3 with ginseng contrast as can be seen that the high product of Ti content and the low product of Ti content with
1:After 1 contrast is with ginseng, the target product needed for contemplating substantially has been obtained.As can be seen here, by by the not paramagnet after magnetic separation
Material and paramagnetic material are reasonably matched, and can obtain the product with expected Ti content met customer need.
Fig. 3 is that paramagnetic semicoke sample and paramagnetic semicoke sample sample drawing, left side are not that paramagnetic semicoke sample, right side are not paramagnetic semicokes
Sample.Roast carbon need to possess, the grey linen condition of color keep after deliming and burning when smokeless, nonhazardous, burning.To reach
Smokelessly, nontoxic effect, volatile matter can be used<The low temperature distillation product of 6% coal is equipped with the bonding of some non-volatile parts and nonhazardous
Agent realizes, deliming can realize that grey color keep canescence can after burning with the low raw material of some characteristic of char residue during burning
Realized with the method for magnetic separation.Because the main chemical compositions for showing color in ash are iron oxide, so being removed with the method for magnetic separation
Iron oxide just can reach color and show linen demand.
Obviously, above-described embodiment is only intended to clearly illustrate example, and is not the restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among changing still in the protection domain of the invention.
Claims (10)
1. a kind of semicoke, coke and activated carbon magnetic separation device for improving quality, including：Conveyer belt, roller, the conveyer belt, which is used to carry, to be needed
The semicoke, coke or the activated carbon to be sorted, roller are used to drive conveyer belt to move, at the same be sorted material leave it is described
The roller that one end of conveyer belt is set has magnetic, and the roller is multiple, and one is comprised at least in the multiple roller
The strong magnet drum of high-intensity magnetic field can be produced, at least one roller is drive roll in the multiple roller, the drive roll with
Power source is connected, and drives the drive roll to rotate by external power supply, so as to drive conveyer belt and other driven rollers
Motion.
2. device as claimed in claim 1, the magnetic field intensity of the strong magnet drum is 5000-20000 oersteds.
3. device as claimed in claim 1, electromagnet that the strong magnetic force of the strong magnet drum is set from its drums inside or
Permanent magnet.
4. device as claimed in claim 1, the conveyer belt is to arrange that the angle is not with the horizontal the mode of angle
It is zero.
5. device as claimed in claim 1, the conveyer belt is parallel arrangement with horizontal plane.
6. device as claimed in claim 1, in order to which loaded material is convenient, the magnetic separation device for improving quality adds hopper, hopper
Export the material carrying side of face conveyer belt.
7. the magnetic separation method for upgrading of a kind of semicoke, coke and activated carbon, including：
S1:By the ㎜ of granularity 1~120, dry distillation of coal product semicoke, coke or the activated carbon of fixed carbon 70~82% are deposited in sorting material
；
S2:The magnetic separation device for improving quality is opened, material is placed on the conveyer belt of the magnetic separation device for improving quality, to the magnetic separation
The roller that device for improving quality is used for material sorting carries out tax magnetic；
S3：Utilize FeO, Fe in semicoke, coke and ash of active carbon2O3Paramagnetic properties, rolled through the strong magnetic with particular magnetic field strength
The separation system of cylinder, low to fixed carbon, high-sulfur, high phosphorus, high titanium products carry out roughing.
8. method as claimed in claim 7, the result of the roughing are：Obtain more than 75% high quality retorted product and 25%
Following low-quality product；Described coal carbonization product fixed carbon index can bring up to 80~86%, and sulphur, phosphorus, titanium percentage contain
Amount can decline 0.002~0.012%, and activated carbon iodine number can improve 200mg/g or so.
9. method as claimed in claim 7, the particular magnetic field strength is 5000-10000 oersteds.
10. method as claimed in claim 7, methods described further comprise：
S4：Concentration step can be further set as needed, the material product after roughing are further sorted；In selected step
Suddenly the magnetic field intensity of the strong magnet drum is arranged to 10000-20000 oersteds.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109225623A (en) * | 2018-08-06 | 2019-01-18 | 广东韩研活性炭科技股份有限公司 | A kind of equipment for removing ferric ion of activated carbon raw material |
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