CN106833707A - For manufacturing the mixed coal of cupola coke and the cupola coke including it and its manufacture method - Google Patents
For manufacturing the mixed coal of cupola coke and the cupola coke including it and its manufacture method Download PDFInfo
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- CN106833707A CN106833707A CN201710048327.XA CN201710048327A CN106833707A CN 106833707 A CN106833707 A CN 106833707A CN 201710048327 A CN201710048327 A CN 201710048327A CN 106833707 A CN106833707 A CN 106833707A
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- coal
- coke
- cupola
- coking
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/04—Other carbonising or coking processes; Features of destructive distillation processes in general using charges of special composition
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/08—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form in the form of briquettes, lumps and the like
Abstract
The invention discloses a kind of mixed coal for manufacturing cupola coke and cupola coke and its manufacture method including it.Include 50% 65% rich coal, 25% 35% meager coal and 5% 10% petroleum coke by weight percentage for manufacturing the mixed coal of cupola coke, or include 50% 65% rich coal and coking coal, 25% 35% meager coal and 5% 10% petroleum coke by weight percentage, wherein, the content of coking coal is 30% the 50% of the gross weight of rich coal.It is more as mixed coal production cupola coke cost decline by the use of rich coal, meager coal, petroleum coke, and cooperation pit ash, sulphur content has been reached the requirement of production cupola coke according to the present invention.In addition, the cupola coke porosity of the invention is low, lumpiness big, the quality criteria requirements of national cupola coke are fully achieved.
Description
Technical field
The present invention relates to a kind of mixed coal for manufacturing cupola coke and cupola coke and its manufacture method including it, more
Say body, be related to a kind of using meager coal manufacture cupola coke and its method.
Background technology
Cupola coke is the primary raw material of furnace cupola molten iron, for melting batch, and overheats molten iron, also acts as supporting material
Post, it is ensured that good gas permeability and confession carbon effect.Cupola coke is generally used in iron casting production melting abroad, bonded hard ferrite magnet is high
In 1500 DEG C；And in domestic iron casting production, bulk metallurgical coke product as an alternative, cupola coke application percentage are commonly used during melting
Deficiency, bonded hard ferrite magnet of coming out of the stove is mostly 1400 DEG C or so, and this has had a strong impact on the quality of molten iron in melting, causes casting iron defect,
Casting quality level has very big gap compared with foreign countries.
Superior casting coke requirement ash content is low, sulphur content is low, reactivity is low, the porosity is low, cold strength is high and lumpiness big and equal
It is even.One of most important property of cupola coke is reactivity, and the specific surface area of the low namely coke of the porosity is small, the reactivity of coke
Also it is low.Temperature Distribution of the reactivity influence of coke in the speed and stove of cupola tuyere zonal combustion.In addition, cupola coke is another
One important properties is the lumpiness and cold strength of cupola coke, and the cupola coke of big lumpiness and high intensity can improve coke burning effect
Rate and molten iron temperature, are also beneficial to desulfurizing iron and carburizing.
When cupola coke is produced, cupola coke is generally produced by the use of anthracite as raw material, but anthracite hardness is big, needs
Separating twice is wanted, the electric power of consumption is more, big to disintegrating machine abrasion, price is relatively high.Accordingly, it would be desirable to a kind of new cupola coke.
The content of the invention
It is an object of the present invention to provide a kind of mixed coal for manufacturing cupola coke and the cupola coke including it and
Its manufacture method.
According to an aspect of the present invention, there is provided a kind of mixed coal for manufacturing cupola coke, the mixed coal by weight hundred
Divide includes the petroleum coke of the rich coal of 50%-65%, the meager coal of 25%-35% and 5%-10% than meter, or by weight percentage
Meter includes the petroleum coke of the rich coal of 50%-65% and coking coal, the meager coal of 25%-35% and 5%-10%, wherein, the content of coking coal
It is the 30%-50% of the gross weight of rich coal.
Exemplary embodiment of the invention, the technical indicator of the rich coal is as follows：Moisture 8%-14%, ash content
7.5%-9.5%, sulphur content 0.4%-0.62%, volatile matter 27%-32%, G value 90-100, Y value 23mm-31mm.The meager coal
Technical indicator it is as follows：Ash content<12%th, sulphur content<8%th, volatile matter 10%-20%, G value≤5.The technical indicator of the petroleum coke
It is as follows：Moisture 0.5%-30%, ash content 0.5%-8.5%, sulphur content 0.2%-0.8%, volatile matter 0.5%-11%.
Exemplary embodiment of the invention, in terms of butt, the technical indicator of the mixed coal is as follows：Ash content<12%th,
Sulphur content<0.6%th, volatile matter 17-22%, moisture 9%-11%, G value 50-70, Y value 12mm-17mm.
Exemplary embodiment of the invention, in terms of butt, particle diameter accounts for mixed coal total amount in the mixed coal of below 3mm
More than 90%.
According to another aspect of the present invention, there is provided a kind of cupola coke, the cupola coke is made up of mixed coal, wherein, it is described
The petroleum coke of mixed coal rich coal, the meager coal of 25%-35% and 5%-10% including 50%-65% by weight percentage, or
The petroleum coke of rich coal and coking coal, the meager coal of 25%-35% and 5%-10% of the person by weight percentage including 50%-65%,
Wherein, the content of coking coal is the 30%-50% of the gross weight of rich coal.
According to another aspect of the invention, there is provided a kind of method for manufacturing cupola coke, methods described includes：Percentage by weight
Than by the rich coal of 50%-65%, the petroleum coke of the meager coal of 25%-35% and 5%-10% or by weight percentage will
The petroleum coke mixing of the rich coal and coking coal, the meager coal of 25%-35% and 5%-10% of 50%-65%, to obtain mixed coal, its
In, the content of coking coal is the 30%-50% of the gross weight of rich coal；Mixed coal is made briquette；Coking treatment is carried out to briquette, with
Obtain cupola coke.
Exemplary embodiment of the invention, bulk density is made in 0.95t/m by mixed coal3Briquette above.
Exemplary embodiment of the invention, to briquette from 850 between including from 10h to 120h the step of coking is processed
DEG C stage be warming up to 1020 DEG C and at a temperature of 1020 DEG C coking treatment until coking is ripe.
Exemplary embodiment of the invention, methods described also includes：Before coking treatment is carried out to briquette, utilize
Briquette is divided into multiple layers by separate layer.
Exemplary embodiment of the invention, the thickness of each layer is 200mm-300mm.Separate layer is including thickness
The brown paper of 0.05mm-0.4mm.
It is as under mixed coal production cupola coke cost by the use of rich coal, meager coal, petroleum coke and/or coking coal according to the present invention
Drop is more, and cooperation pit ash, sulphur content has been reached the requirement of production cupola coke.In addition, cupola coke stomata of the invention
Rate is low, lumpiness is big, and the quality criteria requirements of national cupola coke are fully achieved.
Brief description of the drawings
By description below in conjunction with the accompanying drawings to exemplary embodiment, these and/or other side will be clear and more
It is readily appreciated that, in the accompanying drawings：
Fig. 1 is the flow chart of the method for the manufacture cupola coke of exemplary embodiment of the invention.
Fig. 2 is the process chart of the method for the manufacture cupola coke of exemplary embodiment of the invention.
Specific embodiment
Below in conjunction with exemplary embodiment, principle of the invention is described in further detail, so that technology of the invention is solved
Scheme becomes apparent from.
Mixed coal for manufacturing cupola coke of the invention by weight percentage including 50%-65% rich coal,
The meager coal of 25%-35% and the petroleum coke of 5%-10%, or the rich coal including 50%-65% and Jiao by weight percentage
The petroleum coke of coal, the meager coal of 25%-35% and 5%-10%, wherein, the content of coking coal is the 30%- of the gross weight of rich coal
50%.In a preferred embodiment, it is of the invention to include by weight percentage for manufacturing the mixed coal of cupola coke
60% rich coal, 33% meager coal and 7% petroleum coke, or including 30% rich coal, 30% coking coal, 33% meager coal and
7% petroleum coke, but the invention is not restricted to this.
Rich coal is the active ingredient for manufacturing cupola coke.In exemplary embodiments of the present invention, the technical indicator of rich coal is as follows：
Moisture 8%-14%, ash content 7.5%-9.5%, sulphur content 0.4%-0.62%, volatile matter 27%-32%, G value 90-100, Y
Value 23mm-31mm.However, the invention is not restricted to this, it is possible to use the rich coal of any suitable technical indicator.
Mixed coal of the invention, the mixed coal produced for manufacturing cupola coke using meager coal and/or coking coal can drop
Low production cost.It is, for example possible to use the following meager coal of technical indicator：Ash content<12%th, sulphur content<8%th, volatile matter 10%-
20%th, G value≤5, however, the invention is not restricted to this, it is possible to use the meager coal of any suitable technical indicator.
Additionally, the content control of meager coal can still be produced in the 25%-35% of mixed coal total amount satisfactory
Cupola coke.If the content of meager coal cannot be effectively reduced production cost less than the 25% of mixed coal total amount；If meager coal
Content then leads to not higher than the 35% of mixed coal total amount because excessive meager coal cannot form coke button in follow-up coking
Produce satisfactory cupola coke.In an exemplary embodiment of the present invention, the content of meager coal can 26%-34%,
In the range of 28%-34%, 29%-33%, or in any range of the above-mentioned numerical definiteness for being given, for example, 25%-30% or
33%.
Petroleum coke primarily serves the effect of leaning agent in mixed coal.In an exemplary embodiment of the present invention, can make
With the following petroleum coke of technical indicator：Moisture 0.5%-30%, ash content 0.5%-8.5%, sulphur content 0.2%-0.8%, wave
Hair point 0.5%-11%, however, the invention is not restricted to this, it is possible to use the petroleum coke of any suitable technical indicator.
The petroleum coke of such as particulate is added in the stronger rich coal of caking property can not only reduce cooperation pit ash, sulphur
Part, volatilization grade and comply with requirement, but also can reduce the crackle and porosity of cupola coke, reduce the reaction of cupola coke
Property, increase the mechanical strength and post reaction strength of cupola coke.Additionally, most obvious with coal characteristic and coking conditions after adding petroleum coke
Change be reduction of and the Ji Shi maximum fluidities of coal blending and reduce furnace pressure because petroleum coke is used as a kind of typical case
Coal blending leaning agent can make shove charge coal coking process Semicoke Contraction stage Volatile speed reduce, alleviate semicoke receipts
Contracting, reduces thermal stress, reduces charge of coke crackle.In the bonding stage of coking process, petroleum coke particles adsorption suitable
The liquid product of part pyrolysis of coal generation, reduces amount of liquid phase in plastic body, and fluidity and dilation are reduced, pyrogenous origin gas
Body is easily separated out from plastic body, and the particle and distortion particle of residual is easily mutually assembled, and the resolidification generation porosity is low, and stomata wall thickness
Semicoke reduces the reactivity of coke, increased the post reaction strength of coke, improves the lumpiness of coke, meets foundry coke low
Ash, low-sulfur, the reactive low, porosity are low, the big quality requirement of lumpiness.
In an exemplary embodiment of the present invention, the content of petroleum coke is the 5%-10% of mixed coal total amount, for example, oil
Burnt content can in the range of 5%-9%, 6%-9%, 7%-8%, or the above-mentioned numerical definiteness for being given any range
It is interior, for example, 6%-10%, 7%-10% or 7%.
In non-limiting example of the invention, the granularity of petroleum coke can be controlled in 0.1mm or so.
In non-limiting example of the invention, the granularity of rich coal, meager coal and petroleum coke reaches 100% less than 3mm, and
And granularity accounts for more than 95% less than 2mm.
Mixed coal including said components is in terms of butt, and its technical indicator is as follows：Ash content<12%th, sulphur content<0.6%th, volatilize
Divide 17-22%, moisture 9%-11%, G value 50-70, Y value 12mm-17mm.Additionally, exemplary implementation of the invention
Example, in terms of butt, particle diameter accounts for more than the 90% of mixed coal total amount in the mixed coal of below 3mm.
In non-limiting example of the invention, when one-level cupola coke is produced, mixed coal needs to meet following technology
Index：Ash content<9.5%th, sulphur content<0.6%；When two grades of cupola cokes are produced, mixed coal needs to meet following technical indicator：Ash content
<12%th, sulphur content<0.5%.Furthermore, it is possible to the respective technical indicator according to rich coal, meager coal and petroleum coke be weighted come
Meet the technical indicator of the mixed coal required by the rank of cupola coke, thus rich coal, meager coal and petroleum coke are according to the cooperation for calculating
Than being mixed to obtain mixed coal, so as to produce satisfactory cupola coke.
It is as under mixed coal production cupola coke cost by the use of rich coal, meager coal, petroleum coke and/or coking coal according to the present invention
Drop is more, and the technical indicators such as cooperation pit ash, sulphur content has been reached the requirement of production cupola coke.
The method for describing manufacture cupola coke of the invention in detail below with reference to accompanying drawings.
Fig. 1 is the flow chart of the method for the manufacture cupola coke of exemplary embodiment of the invention.Fig. 2 is according to this hair
The process chart of the method for the manufacture cupola coke of bright exemplary embodiment.
Reference picture 1, the method for manufacture cupola coke of the invention includes preparing mixed coal (S100), is made mixed coal
Briquette (S200) and coking treatment (S300) is carried out to briquette.
In mixed coal (S100) is prepared, the mixed coal can use mixed coal as described above, therefore, will not herein
Repeated.
In mixed coal to be made briquette (S200), mixed coal can be made bulk density in 0.95t/m3Coal above
Cake.In the present invention, mixed coal is made bulk density in 0.95t/m3Briquette above so that the distance between coal grain reduces,
The relative reduction of liquid product quantity needed for filling coal intergranular gap after being heated so as to coal charge.Additionally, the bulk density of increase briquette, also
The resistance of pyrolysis gas spilling is increased, the air impermeability and the bulbs of pressure of gel is increased, such that it is able to relatively abundant
Using the caking property of coal charge, final cupola coke shows the advantages of increase of air vent wall intensity, coke structure densification.Of the invention
In non-limiting example, the bulk density of briquette is in 0.95t/m3-1.05t/m3Between or in 1.05t/m3More than.
In coking treatment (S300) is carried out to briquette, briquette is carried out at coking at a temperature of 850 DEG C -1020 DEG C
Reason, to form cupola coke.Specifically, in the temperature control of carbonization chamber at 900 ± 100 DEG C, tetrad encircles temperature≤1220 to briquette
DEG C, gas-collecting branch pipe temperature≤1050 DEG C, main temperature≤1000 DEG C.
The coke of high intensity is obtained during the coking such as half inert substance in adapted petroleum coke it is necessary to make such as rich coal
Active material and half inert substance firm physical chemistry is formed in process of coking and is combined.Heat recovery coke oven coking time is long
Up to 120 hours or so, coking rate was more much lower than big machine Jiao, and low heating rate makes half inert substance of petroleum coke etc. and rich coal
Deng active material increase in the bioactive molecule that high-temperature region produces time that is bonded to each other, also make the interval overlap of generation bioactive molecule
Region increases.Therefore, low coking speed causes the activity that the rank coal high such as half inert substance is produced in the coking middle and later periods
Molecule has the long period to be reacted with the active material of rich coal pyrolysis generation.Therefore, in an exemplary embodiment of the present invention,
Can from 10h to 120h between 1020 DEG C and the coking treatment at a temperature of 1020 DEG C are warming up to from 850 DEG C of stages to briquette
Until coking is ripe.For example, coking treatment can be carried out according to the time in table 1 and temperature：
Table 1
| Temperature/DEG C | Time/h |
| 830-890 | 10-40 |
| 890-940 | 40-80 |
| 890-980 | 80-120 |
| 980-1020 | 120- is ripe |
In coking processing procedure, a part of gas can be flowed up through coke (such as cupola coke) along the wall of coke oven,
There is twice decomposition in this portion gas, the carbon with active bond is produced, fully on the air vent wall of coke when through coke layer
Deposition, and produce chemically combined bridge with the part after active component Semicoke Contraction as the part after inert component pyrolysis
Beam, so as to increase the cold strength of coke.
In an exemplary embodiment of the present invention, the method for manufacture cupola coke is additionally may included in and briquette is carried out at coking
Before reason (S300), the step of briquette is divided into multiple layers using separate layer (S400).In exemplary embodiment of the invention
In, the thickness of each layer can be 200mm-300mm.It is the brown paper of 0.05mm-0.4mm by briquette that such as thickness can be utilized
Such as 6 layers are stacked as, wherein, the thickness of ground floor to layer 5 can be 220mm, and the thickness of layer 6 can be 200mm.
In the present invention, briquette is stacked as multiple layers and causes that in coking each layer produces different convergent-divergent stress, and can be with
Discharged along separate layer, and the longitudinal crack of different layers is also divided the lumpiness and intensity that layer cutting increases cupola coke.
In non-limiting example of the invention, after coking treatment is carried out to briquette, STRENGTH ON COKE carries out quenching, cool
Burnt, sieve is burnt, so as to obtain cupola coke.
Additionally, in an exemplary embodiment of the present invention, manufacturing the method for cupola coke can also include treating coking
The heat produced in journey is recycled.Specifically, reference picture 2, feed coal (rich coal, meager coal, petroleum coke and/coking coal) is broken
Broken, coal blending, to obtain mixed coal；Briquette is made to mixed coal；Briquette is loaded into coke oven through coal-charging pusher machine and performs coking, with
To coke；STRENGTH ON COKE carries out quenching, cool burnt, sieve Jiao, to obtain cupola coke and metallurgical coke；High-temperature flue gas in coke oven are returned
Receive, in waste heat boiler；The steam obtained through waste heat boiler is used to generate electricity；It is used to remove through the low-temperature flue gas after waste heat boiler
Discharged after dirt desulfurization.
Mixed coal for manufacturing cupola coke of the invention, the cupola coke comprising it and its manufacture method can be obtained
At least one of following effect：
1st, it is more as mixed coal production cupola coke cost decline by the use of rich coal, meager coal, petroleum coke and/or coking coal, and
Cooperation pit ash, sulphur content is set to have reached the requirement of production cupola coke.
2nd, cupola coke of the invention has the spies such as low ash, low-sulfur, cold strength are high, reactivity is low, the porosity is low, lumpiness is big
Point, is fully achieved the quality criteria requirements of national cupola coke.
3rd, cupola coke of the invention can be widely applied for the industries such as machine-building, hot investment casting.
4th, the method according to the invention process of coking negative-pressure operation, reduces the uncontrollable discharge of exhaust gas dust.
5th, the high-temperature flue gas concentration extraction that the method according to the invention is produced carries out exhaust heat recovery power generation, so as to reduce to ring
The pollution in border.
6th, the method according to the invention avoids the generation and treatment of phenol, cyanogen sewage.
Cupola coke of the invention is described in more detail with reference to embodiment.
Embodiment 1：The preparation of cupola coke
60% rich coal, 33% meager coal and 7% petroleum coke are mixed, to obtain mixed coal；Mixed coal is made heap
Proportion is 1.05t/m3Briquette；Briquette is added in coke oven, and briquette is stacked as 6 layers and ground floor extremely using brown paper
The thickness of layer 5 is 200mm, and the thickness of layer 6 is 220mm；Time and temperature according to table 1 carry out coking to briquette, with
Obtain coke；STRENGTH ON COKE performs quenching, cool burnt, sieve Jiao, to obtain cupola coke (such as one-level is burnt).The quality of mixed coal shows
In table 2, the quality of cupola coke is shown in table 3.
Embodiment 2：The preparation of cupola coke
In addition to being mixed according to the raw material proportioning of table 2, casting is manufactured using the method identical method with embodiment 1
Make burnt (two grades of Jiao).The quality of mixed coal shows that in table 2 quality of cupola coke is shown in table 3.
Embodiment 3：The preparation of cupola coke
In addition to being mixed according to the raw material proportioning of table 2, casting is manufactured using the method identical method with embodiment 1
Make burnt (two grades of Jiao).The quality of mixed coal shows that in table 2 quality of cupola coke is shown in table 3.
Table 2
Table 3
From table 3 it can be seen that under by the use of rich coal, meager coal, petroleum coke and/or coking coal as mixed coal production cupola coke cost
Drop is more, and cooperation pit ash, sulphur content has been reached the requirement of production cupola coke.Additionally, cupola coke of the invention has
The features such as low ash, low-sulfur, cold strength are high, reactivity is low, the porosity is low, lumpiness is big, is fully achieved the quality of national cupola coke
Standard requirement.
The ash content of cupola coke is according to GB 2002-80《The assay method of smelter coke ash content》The measure that carries out of regulation.Casting
The volatile matter of Jiao is made according to GB 2003-80《The assay method of smelter coke volatile matter》The measure that carries out of regulation.Drum strength
According to GB 2006-80《The assay method of smelter coke mechanical strength》The measure that carries out of regulation, wherein, test into bulging lumpiness
It is more than 80mm.Drop strength is according to GB 4511.2-84《The assay method of coke drop strength》The measure that carries out of regulation.
The apparent porosity of cupola coke is according to GB 4511.84《The assay method of coke apparent porosity》The measure that carries out of regulation.Cupola coke
Lumpiness according to GB 2005-80《The assay method of the burnt screening composition of the breeze content and bulk of smelter coke》Regulation carry out
Measure.Note：Broken burnt rate, cupola coke sieves on 40mm × 40mm square hole screens, its screenings account for the weight ratio of original sample with
Percentage is represented.
Although being specifically illustrated in reference to exemplary embodiment of the invention and describing the present invention, this area is general
Logical technical staff will be understood that, not depart from the spirit and scope of the present invention that are limited such as claim and their equivalent
In the case of, can herein make the various changes in form and details.Should only in the sense that descriptive rather than for
The purpose of limitation considers embodiment.Therefore, the scope of the present invention is limited by specific embodiment of the invention, but
It is defined by the claims, all differences in the range of this are to be interpreted as being included in the invention.
Claims (10)
1. a kind of mixed coal for manufacturing cupola coke, it is characterised in that the mixed coal includes 50%- by weight percentage
The petroleum coke of 65% rich coal, the meager coal of 25%-35% and 5%-10%, or include 50%-65% by weight percentage
Rich coal and coking coal, the meager coal of 25%-35% and 5%-10% petroleum coke, wherein, the content of coking coal is the gross weight of rich coal
30%-50%.
2. mixed coal according to claim 1, it is characterised in that：
The technical indicator of the rich coal is as follows：Moisture 8%-14%, ash content 7.5%-9.5%, sulphur content 0.4%-0.62%,
Volatile matter 27%-32%, G value 90-100, Y value 23mm-31mm；
The technical indicator of the meager coal is as follows：Ash content<12%th, sulphur content<8%th, volatile matter 10%-20%, G value≤5；
The technical indicator of the petroleum coke is as follows：Moisture 0.5%-30%, ash content 0.5%-8.5%, sulphur content 0.2%-
0.8%th, volatile matter 0.5%-11%.
3. mixed coal according to claim 1, it is characterised in that in terms of butt, the technical indicator of the mixed coal is as follows：
Ash content<12%th, sulphur content<0.6%th, volatile matter 17-22%, moisture 9%-11%, G value 50-70, Y value 12mm-17mm.
4. mixed coal according to claim 1, it is characterised in that in terms of butt, particle diameter is accounted in the mixed coal of below 3mm matches somebody with somebody
Close more than the 90% of coal total amount.
5. a kind of cupola coke, the cupola coke is made up of mixed coal, wherein, the mixed coal includes by weight percentage
The petroleum coke of the rich coal of 50%-65%, the meager coal of 25%-35% and 5%-10%, or include 50%- by weight percentage
The petroleum coke of 65% rich coal and coking coal, the meager coal of 25%-35% and 5%-10%, wherein, the content of coking coal is the total of rich coal
The 30%-50% of weight.
6. it is a kind of manufacture cupola coke method, it is characterised in that methods described includes：
By weight percentage by the rich coal of 50%-65%, the petroleum coke of the meager coal of 25%-35% and 5%-10% or by weight
Percentages mix the petroleum coke of the rich coal and coking coal, the meager coal of 25%-35% and 5%-10% of 50%-65%, to obtain
Mixed coal, wherein, the content of coking coal is the 30%-50% of the gross weight of rich coal；
Mixed coal is made briquette；
Coking treatment is carried out to briquette, to obtain cupola coke.
7. method according to claim 6, it is characterised in that mixed coal is made bulk density in 0.95t/m3Coal above
Cake.
8. method according to claim 6, it is characterised in that the step of coking is processed is right between including from 10h to 120h
Briquette be warming up to 1020 DEG C from 850 DEG C of stages and at a temperature of 1020 DEG C coking treatment until coking maturation.
9. method according to claim 6, it is characterised in that methods described also includes：Coking treatment is being carried out to briquette
Before, briquette is divided into multiple layers using separate layer.
10. method according to claim 9, it is characterised in that the thickness of each layer is 200mm-300mm；
The separate layer includes that thickness is the brown paper of 0.05mm-0.4mm.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111575033A (en) * | 2020-05-11 | 2020-08-25 | 山西沁新能源集团股份有限公司 | Formed coke and preparation method and application thereof |
| RU2769188C1 (en) * | 2020-11-19 | 2022-03-29 | Публичное Акционерное Общество "Новолипецкий металлургический комбинат" | Composition of charge for producing metallurgical coke |
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| CN111575033A (en) * | 2020-05-11 | 2020-08-25 | 山西沁新能源集团股份有限公司 | Formed coke and preparation method and application thereof |
| RU2769188C1 (en) * | 2020-11-19 | 2022-03-29 | Публичное Акционерное Общество "Новолипецкий металлургический комбинат" | Composition of charge for producing metallurgical coke |
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