CN105400534B - A kind of raw material of coking process - Google Patents
A kind of raw material of coking process Download PDFInfo
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- CN105400534B CN105400534B CN201410471550.1A CN201410471550A CN105400534B CN 105400534 B CN105400534 B CN 105400534B CN 201410471550 A CN201410471550 A CN 201410471550A CN 105400534 B CN105400534 B CN 105400534B
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Abstract
The present invention provides a kind of raw material of coking process, including low-order coal and auxiliary agent, the auxiliary agent is the organic binder for completely cutting off air destructive distillation weightlessness at 850 DEG C and being less than 50%；Preferably, the organic binder is the asphalitine that softening point is more than 100 DEG C.By the raw material of the application, the problem of not only solving low existing tamping coke furnace availability, coking industry excess capacity, also solve the problem for keeping its application limited due to no large-scale industrialization equipment for low-order coal, after the auxiliary agent is mixed with low-order coal, active ingredient wherein in auxiliary agent contributes to high molecular fracture in the degradation at high temperature of the high molecular polymer in low-order coal and low-order coal, to improve the yield of oil gas in technical process, oil gas total amount is made to increase production 10% or more.
Description
Technical field
The present invention relates to a kind of coal raw materials being used in coking process, and in particular to a kind of to carry out coke using existing stove of making firm by ramming
The coal raw material of chemical industry skill.
Background technology
Coal is the main energy sources in China, and 70% is accounted for about in primary energy structure.During very long geological changes,
The formation of coal is acted on by many factors, causes categories of coal various.According to the difference of structure and composition, coal is divided into brown
3 major class of coal, bituminous coal and anthracite, metabituminous coal is divided into as lower-grade metamorphic bituminous and mesometamorphism bituminous coal, lower-grade metamorphic bituminous to be called time cigarette
Coal is referred to as " low-order coal " together with lignite.Low-order coal is the product at incoalation initial stage, with phosphorus content is low, moisture is high, easy
The characteristics of dusting, easy spontaneous combustion, fugitive constituent height, immersion intensity difference, anti-dropping intensity difference, these characteristics are limited to the direct of low-order coal
It develops and uses, but according to statistics, China's low order coal reserves accounts for the whole nation and has verified 55% of coal reserves or more, up to 561,200,000,000 tons, this nothing
It doubts and causes a kind of waste of resource.And with domestic energy demand increasingly increase and high-quality coal stock number falls sharply,
The conversion comprehensive utilization of low-order coal becomes people's increasingly focus of attention.
The process for upgrading of low-order coal is one of the means of low-order coal trans-utilization, is in isolation air or non-oxide gas
Low-order coal is heated to low temperature upgrading in 200-800 DEG C of progress under the conditions of atmosphere, finally obtains the processing side of tar, coal gas and semicoke
Method.But current low-order coal upgrading technology is in experimental study and engineering original application stage, and there is no keep it extensive
The equipment of industrial applications thus limits the utilization of low-order coal.
Tamping coke furnace be coal coking process in the enlarged equipment that uses, floor space is wide, and investment capital cost is big,
The coking process that coking is carried out using tamping coke furnace is primarily referred to as high-temperature coking to obtain coke and recycling chemical products, coke
Product is mainly that metallurgical coke or chemical industry are burnt, due to the coal original for industrially using to the quality requirements of metallurgical coke or chemical industry coke, it
Material includes mainly the coals such as coking coal, 1/3 coking coal, bottle coal, rich coal, lean coal, meager lean coal, belongs to mesometamorphism bituminous coal, due in recent years
The shortage of coal resources, especially be used for coking industry middle high-quality coal raw material reduction so that the raw material of coking industry at
This is growing day by day, in addition the decline of a large amount of industries for needing metallurgical coke or chemical industry coke such as steel, metallurgy in recent years, on the one hand, makes
The price of coke product drastically reduces, the rise of cost of material, the decline of product price so that China's major part coking industry passes through
Ji benefit seriously glides, and on the other hand, the reduction of coke demand forces coke-oven plant to reduce coke output, but due to stamp-charging coke
Stove is once out of service to be scrapped, therefore in order to protect the tamping coke furnace equipment for furnishing a huge amount of money for invest to build, is had in minimum journey
The operation that coke oven is maintained in degree, not only reduces the availability of tamping coke furnace, also causes the excess capacity of coking industry.To sum up institute
The coking industry how saved and be on the verge of negative growth is stated, the availability of tamping coke furnace is improved, solves asking for coking industry excess capacity
Topic has become coking industry letter major issue to be solved.
It is well known that its purpose of traditional coking process primarily to obtain coke, especially metallurgical coke, first to
It solves the problems, such as coking industry negative growth, feed coal price needed for coking industry is greatly reduced or improves coke price or two
It is selectable approach that person has both simultaneously, currently, coke price cannot achieve improvements in a short time, then feed coal can only be reduced
Price, but the requirement due to Coke Industry for coke quality have then been traced in the requirement to feed coal, are had to tight
Lattice limit the index of its volatile matter and ash content.Low-order coal is the coal that price is more cheap in feed coal, if it is possible to effectively profit
With low-order coal, extricate oneself from a plight then will be helpful to coking industry.But low-order coal has volatile matter height, easy dusting, ash content high
Feature, and the index of volatile matter and ash content that coking proposes feed coal is very stringent, this is just doomed can not by using low-order coal
Solve the problems, such as coking industry feed coal price.
Invention content
To solve the problems, such as that low-order coal cannot achieve large-scale application and coking process expensive starting materials, coking in the prior art
The low problem of industrial economy benefit, to provide a kind of raw material of coking process.
For this purpose, the technical solution that the present invention takes is,
In a kind of raw material of coking process, including low-order coal and auxiliary agent, the auxiliary agent are to completely cut off air destructive distillation at 850 DEG C to lose
It is less than 50% 850 DEG C of isolation air destructive distillation weightlessness of organic binder again.
In the raw material of above-mentioned coking process, the organic binder is the asphalitine that softening point is more than 100 DEG C.
In the raw material of above-mentioned coking process, the auxiliary agent is coal asphalt or petroleum asphalt, and softening point is not less than 120
℃。
In the raw material of above-mentioned coking process, the softening point of the pitch is not less than 140 DEG C.
In the raw material of above-mentioned coking process, the pitch is hard pitch, in mass, the fixation of the hard pitch
Carbon content is 25% or more, C/Hratio 8-11.
In the raw material of above-mentioned coking process, in mass, the addition of the auxiliary agent is the 5- of the low order coal quality
40wt%.
In the raw material of above-mentioned coking process, in mass, the addition of the auxiliary agent is the 10- of the low order coal quality
30wt%.
Further include one or more of scala media coal, high-order coal or middle high-order coal in the raw material of above-mentioned coking process, with
Quality meter, the addition of the low-order coal are the 50-80wt% of the material quality.
Further include one or more of scala media coal, high-order coal or middle high-order coal in the raw material of above-mentioned coking process, with
Quality meter, the addition of the low-order coal are the 50-60wt% of the material quality.
In the raw material of above-mentioned coking process, the G values of the low-order coal are less than 50, and volatile content is more than 40%.
Compared with prior art, the invention has the advantages that,
(1) in the present invention coking process raw material, not only solve that existing tamping coke furnace availability is low, coking industry production capacity
Superfluous problem also solves the problem for keeping its application limited due to no large-scale industrialization equipment for low-order coal.
It is added in feed coal in the application and completely cuts off asphalitine of the air destructive distillation weightlessness less than 50% at 850 DEG C as bonding
On the one hand agent is conducive to low-order coal and is molded in tamping machine, coking is carried out to be pushed into tamping coke furnace, another
Its solid product is not pulverized easily after the completion of aspect low order coking of coal, is easy to the coke pushing of tamping coke furnace, it is most important that the auxiliary agent
After being mixed with low-order coal, the active ingredient wherein in auxiliary agent contributes to the drop of the high molecular polymer in low-order coal at high temperature
High molecular fracture in solution and low-order coal makes oil gas total amount increase production 10% or more to improve the yield of oil gas in technical process.
And the main component in raw gas is hydrogen and methane, currently, the price of hydrogen, methane is far above the price of coke, yield
Increase improve the economic benefit of enterprise, meanwhile, compared with using middle and high rank coal as the coking process of raw material, adopting in the prior art
It uses low-order coal as the raw material of coking process, can largely reduce cost of material, while the exploitation to low-order coal and profit
With significant.
(2) in the present invention coking process raw material, the auxiliary agent is that coal or petroleum raw material react the pitch to be formed, and institute
The softening point for stating pitch is not less than 120 DEG C, improves the quality of its solid product-coke after the completion of low order coking of coal, in coke
The by-product coke that volatile matter makes no more than 3-4% can be used for generating electricity, gas making and other chemical industry purposes.
Specific implementation mode
The coal ingredient formed in the raw material of the coking process of the application is suitable for all low-order coals, scala media coal, high-order coal
Or middle high-order coal raw material, for purposes of illustration only, for low-order coal by taking ub-bituminous coal or lignite as an example, the coal of non-low-order coal is former in following embodiments
Material is by taking 1/3 coking coal or coking coal as an example.
Wherein, the quality of quality × 90%+ auxiliary agents of the non-low-order coals of quality × 75%+ of quality=low-order coal of dry coal,
What " kg/t dry coals " referred to dry coal per ton obtains how many kilograms of product.
Embodiment 1
(1) ub-bituminous coal is crushed and is mixed with auxiliary agent, feed coal is carried out using tamping machine to make molding, wherein auxiliary agent firm by ramming
Addition quality be ub-bituminous coal quality 40wt%, the G values of the ub-bituminous coal are 45, volatile content 65%, the auxiliary agent
For 105 DEG C of asphalitine of softening point, the asphalitine completely cuts off air destructive distillation weightlessness 45% at 850 DEG C；
(2) molding feed coal is pushed into coke oven and carries out coking, 850 DEG C of coking temperature of control, scorch time 16 hours,
The mixture of the raw gas, tar, crude benzol that overflow is collected, while obtaining byproduct coke；
Using common process separation raw gas, tar, and crude benzol is further detached from tar, the obtained raw gas
Amount be 650Nm3The amount of/t dry coals, the tar is 109kg/t dry coals, and the amount of the byproduct coke is 390kg/t dry coals,
The amount of the crude benzol is 31kg/t dry coals.In mass, solids carbon content is not less than 60% in coke, and volatile matter content is not more than
6%, grain size is the 20% of coke gross mass in the particle gross mass of 40mm or more after coke screening, of the grain size in 25mm or more
Grain gross mass is the 60% of coke gross mass.
Embodiment 2
(1) ub-bituminous coal is crushed and is mixed with auxiliary agent, feed coal is carried out using tamping machine to make molding, wherein auxiliary agent firm by ramming
Addition quality be ub-bituminous coal quality 35wt%, the G values of the ub-bituminous coal are 40, volatile content 70%, the auxiliary agent
For 115 DEG C of asphalitine of softening point, the asphalitine completely cuts off air destructive distillation weightlessness 40% at 850 DEG C；
(2) molding feed coal is pushed into coke oven and carries out coking, control 900 DEG C of coking temperature, scorch time 15.5 is small
When, the raw gas of spilling, the mixture of tar, crude benzol are collected, while obtaining byproduct coke；
Using common process separation raw gas, tar, and crude benzol is further detached from tar, the obtained raw gas
Amount be 680Nm3The amount of/ton dry coal, the tar is 117kg/t dry coals, and the amount of the byproduct coke is dry for 360kg/t
The amount of coal, the crude benzol is 33kg/t dry coals.In mass, solids carbon content is not less than 58% in coke, and volatile matter content is not
More than 5%, grain size is the 15% of coke gross mass in the particle gross mass of 40mm or more after coke screening, and grain size is in 25mm or more
Particle gross mass be coke gross mass 55%.
Embodiment 3
(1) ub-bituminous coal is crushed and is mixed with auxiliary agent, feed coal is carried out using tamping machine to make molding, wherein auxiliary agent firm by ramming
Addition quality be ub-bituminous coal quality 30wt%, the G values of the ub-bituminous coal are 35, volatile content 45%, the auxiliary agent
For 120 DEG C of asphalitine of softening point, the asphalitine completely cuts off air destructive distillation weightlessness 42% at 850 DEG C；
(2) molding feed coal is pushed into coke oven and carries out coking, 950 DEG C of coking temperature of control, scorch time 17 hours,
The mixture of the raw gas, tar, crude benzol that overflow is collected, while obtaining byproduct coke；
Using common process separation raw gas, tar, and crude benzol is further detached from tar, the obtained raw gas
Amount be 450Nm3The amount of/t dry coals, the tar is 45kg/t dry coals, and the amount of the byproduct coke is 586kg/t dry coals,
The amount of the crude benzol is 15kg/t dry coals.In mass, solids carbon content is not less than 72% in coke, and volatile matter content is not more than
4%, grain size is the 15% of coke gross mass in the particle gross mass of 40mm or more after coke screening, of the grain size in 25mm or more
Grain gross mass is the 55% of coke gross mass.
Embodiment 4
(1) ub-bituminous coal is crushed and is mixed with auxiliary agent, feed coal is carried out using tamping machine to make molding, wherein auxiliary agent firm by ramming
Addition quality be ub-bituminous coal quality 25wt%, the G values of the ub-bituminous coal are 30, volatile content 65%, the auxiliary agent
For 130 DEG C of asphalitine of softening point, the asphalitine completely cuts off air destructive distillation weightlessness 40% at 850 DEG C；
(2) molding feed coal is pushed into coke oven and carries out coking, control 1000 DEG C of coking temperature, scorch time 16.5 is small
When, the raw gas of spilling, the mixture of tar, crude benzol are collected, while obtaining byproduct coke；
Using common process separation raw gas, tar, and crude benzol is further detached from tar, the obtained raw gas
Amount be 720Nm3The amount of/t dry coals, the tar is 117kg/t dry coals, and the amount of the byproduct coke is 360kg/t dry coals,
The amount of the crude benzol is 33kg/t dry coals.In mass, solids carbon content is not less than 58% in coke, and volatile matter content is not more than
4%, grain size is the 15% of coke gross mass in the particle gross mass of 40mm or more after coke screening, of the grain size in 25mm or more
Grain gross mass is the 55% of coke gross mass.
Embodiment 5
(1) ub-bituminous coal is crushed and is mixed with auxiliary agent, feed coal is carried out using tamping machine to make molding, wherein auxiliary agent firm by ramming
Addition quality be ub-bituminous coal quality 20wt%, the G values of the ub-bituminous coal are 20, volatile content 60%, the auxiliary agent
For 140 DEG C of asphalitine of softening point, the asphalitine completely cuts off air destructive distillation weightlessness 35% at 850 DEG C；
(2) molding feed coal is pushed into coke oven and carries out coking, control 1100 DEG C of coking temperature, scorch time 18 is small
When, the raw gas of spilling, the mixture of tar, crude benzol are collected, while obtaining byproduct coke；
Using common process separation raw gas, tar, and crude benzol is further detached from tar, the obtained raw gas
Amount be 650Nm3The amount of/t dry coals, the tar is 101kg/t dry coals, and the amount of the byproduct coke is 402kg/t dry coals,
The amount of the crude benzol is 29kg/t dry coals.In mass, solids carbon content is not less than 64% in coke, and volatile matter content is not more than
4%, grain size is the 15% of coke gross mass in the particle gross mass of 40mm or more after coke screening, of the grain size in 25mm or more
Grain gross mass is the 55% of coke gross mass.
Embodiment 6
(1) ub-bituminous coal is crushed and is mixed with auxiliary agent, feed coal is carried out using tamping machine to make molding, wherein auxiliary agent firm by ramming
Addition quality be ub-bituminous coal quality 15wt%, the G values of the ub-bituminous coal are 15, volatile content 55%, the auxiliary agent
For 150 DEG C of hard pitch of softening point, the hard pitch completely cuts off air destructive distillation weightlessness at 850 DEG C and is less than 40%, and fixed carbon contains
Amount 28%, C/Hratio 8；
(2) molding feed coal is pushed into coke oven and carries out coking, 950 DEG C of coking temperature of control, scorch time 20 hours,
The mixture of the raw gas, tar, crude benzol that overflow is collected, while obtaining byproduct coke；
Using common process separation raw gas, tar, and crude benzol is further detached from tar, the obtained raw gas
Amount be 600Nm3The amount of/t dry coals, the tar is 93kg/t dry coals, and the amount of the byproduct coke is 448kg/t dry coals,
The amount of the crude benzol is 27kg/t dry coals.In mass, solids carbon content is not less than 64% in coke, and volatile matter content is not more than
5%, grain size is the 15% of coke gross mass in the particle gross mass of 40mm or more after coke screening, of the grain size in 25mm or more
Grain gross mass is the 55% of coke gross mass.
Embodiment 7
(1) ub-bituminous coal is crushed and is mixed with auxiliary agent, feed coal is carried out using tamping machine to make molding, wherein auxiliary agent firm by ramming
Addition quality be ub-bituminous coal quality 10wt%, the G values of the ub-bituminous coal are 20, volatile content 50%, the auxiliary agent
For 170 DEG C of hard pitch of softening point, the hard pitch completely cuts off air destructive distillation weightlessness 42%, fixed carbon content at 850 DEG C
30%, C/Hratio 11；
(2) molding feed coal is pushed into coke oven and carries out coking, control 1200 DEG C of coking temperature, scorch time 24 is small
When, the raw gas of spilling, the mixture of tar, crude benzol are collected, while obtaining byproduct coke；
Using common process separation raw gas, tar, and crude benzol is further detached from tar, the obtained raw gas
Amount be 600Nm3The amount of/t dry coals, the tar is 78kg/t dry coals, and the amount of the byproduct coke is 480kg/t dry coals,
The amount of the crude benzol is 22kg/t dry coals.In mass, solids carbon content is not less than 55% in coke, and volatile matter content is not more than
3%, grain size is the 5% of coke gross mass in the particle gross mass of 40mm or more after coke screening, of the grain size in 25mm or more
Grain gross mass is the 50% of coke gross mass.
Embodiment 8
(1) ub-bituminous coal is crushed and is mixed with auxiliary agent, feed coal is carried out using tamping machine to make molding, wherein auxiliary agent firm by ramming
Addition quality be ub-bituminous coal quality 5wt%, the G values of the ub-bituminous coal are 15, volatile content 45%, and the auxiliary agent is
The hard pitch that 190 DEG C of softening point, the hard pitch completely cut off air destructive distillation weightlessness 45% at 850 DEG C, fix carbon content 28%,
C/Hratio is 10；
(2) molding feed coal is pushed into coke oven and carries out coking, 950 DEG C of coking temperature of control, scorch time 20 hours,
The mixture of the raw gas, tar, crude benzol that overflow is collected, while obtaining byproduct coke；
Using common process separation raw gas, tar, and crude benzol is further detached from tar, the obtained raw gas
Amount be 435Nm3The amount of/t dry coals, the tar is 46kg/t dry coals, and the amount of the byproduct coke is 650kg/t dry coals,
The amount of the crude benzol is 16kg/t dry coals.In mass, solids carbon content is not less than 64% in coke, and volatile matter content is not more than
4%, grain size is the 5% of coke gross mass in the particle gross mass of 40mm or more after coke screening, of the grain size in 25mm or more
Grain gross mass is the 55% of coke gross mass.
Embodiment 9
(1) lignite is crushed and is mixed with auxiliary agent, molding make firm by ramming to feed coal using tamping machine, wherein auxiliary agent
The 10wt% that quality is lignite quality is added, the G values of the lignite are 20, and volatile content 55%, the auxiliary agent is softening
Asphalitine of the point more than 110 DEG C, the asphalitine completely cut off air destructive distillation weightlessness 45% at 850 DEG C；
(2) molding feed coal is pushed into coke oven and carries out coking, 850 DEG C of coking temperature of control, scorch time 16 hours,
The mixture of the raw gas, tar, crude benzol that overflow is collected, while obtaining byproduct coke；
Using common process separation raw gas, tar, and crude benzol is further detached from tar, the obtained raw gas
Amount be 420Nm3The amount of/t dry coals, the tar is 93kg/t dry coals, and the amount of the byproduct coke is 544kg/t dry coals,
The amount of the crude benzol is 27kg/t dry coals.In mass, solids carbon content is not less than 57% in coke, and volatile matter content is not more than
6%, grain size is the 15% of coke gross mass in the particle gross mass of 40mm or more after coke screening, of the grain size in 25mm or more
Grain gross mass is the 50% of coke gross mass.
Embodiment 10
(1) lignite is crushed and is mixed with auxiliary agent, molding make firm by ramming to feed coal using tamping machine, wherein auxiliary agent
The 30wt% that quality is lignite quality is added, the G values of the lignite are 20, and volatile content 55%, the auxiliary agent is softening
The hard pitch of 150 DEG C of point, the hard pitch completely cut off air destructive distillation weightlessness 30% at 850 DEG C, and fixed carbon content 30% is hydrocarbon
Than 8；
(2) molding feed coal is pushed into coke oven and carries out coking, 950 DEG C of coking temperature of control, scorch time 24 hours,
The mixture of the raw gas, tar, crude benzol that overflow is collected, while obtaining byproduct coke；
Using common process separation raw gas, tar, and crude benzol is further detached from tar, the obtained raw gas
Amount be 380Nm3The amount of/t dry coals, the tar is 53kg/t dry coals, and the amount of the byproduct coke is 667kg/t dry coals,
The amount of the crude benzol is 27kg/t dry coals.In mass, solids carbon content is not less than 72% in coke, and volatile matter content is not more than
4%, grain size is the 20% of coke gross mass in the particle gross mass of 40mm or more after coke screening, of the grain size in 25mm or more
Grain gross mass is the 55% of coke gross mass.
Embodiment 11
(1) ub-bituminous coal is crushed and is mixed to form low-order coal raw material with auxiliary agent, then mix shape with 1/3 coking coal of crushing again
At feed coal, feed coal is carried out using tamping machine to make molding firm by ramming, wherein in mass, the addition of auxiliary agent is ub-bituminous coal
The 40wt% of quality, the addition of the ub-bituminous coal are the 65wt% of the raw material coal quality, and the G values of the ub-bituminous coal are 45,
Volatile content is 65%, and the auxiliary agent is the asphalitine of 105 DEG C of softening point, and the asphalitine completely cuts off air destructive distillation at 850 DEG C
Weightlessness 45%；
(2) molding feed coal is pushed into coke oven and carries out coking, 850 DEG C of coking temperature of control, scorch time 16 hours,
The mixture of the raw gas, tar, crude benzol that overflow is collected, while obtaining byproduct coke；
Using common process separation raw gas, tar, and crude benzol is further detached from tar, the obtained raw gas
Amount be 450Nm3The amount of/t dry coals, the tar is 54kg/t dry coals, and the amount of the byproduct coke is 570kg/t dry coals,
The amount of the crude benzol is 16kg/t dry coals.In mass, solids carbon content is not less than 72% in coke, and volatile matter content is not more than
6%, grain size is the 30% of coke gross mass in the particle gross mass of 40mm or more after coke screening, of the grain size in 25mm or more
Grain gross mass is the 55% of coke gross mass.
Embodiment 12
(1) ub-bituminous coal is crushed and is mixed to form low-order coal raw material with auxiliary agent, then form original with 1/3 coking coal of crushing again
Expect coal, feed coal is carried out using tamping machine to make molding firm by ramming, wherein in mass, the addition quality of auxiliary agent is ub-bituminous coal matter
The 35wt% of amount, the addition of the ub-bituminous coal are the 50wt% of the raw material coal quality, and the G values of the ub-bituminous coal are 40, are waved
It is 70% to send out part content, and the auxiliary agent is the asphalitine of 115 DEG C of softening point, and the asphalitine completely cuts off air destructive distillation mistake at 850 DEG C
Weigh 40%；
(2) molding feed coal is pushed into coke oven and carries out coking, control 900 DEG C of coking temperature, scorch time 15.5 is small
When, the raw gas of spilling, the mixture of tar, crude benzol are collected, while obtaining byproduct coke；
Using common process separation raw gas, tar, and crude benzol is further detached from tar, the obtained raw gas
Amount be 500Nm3The amount of/t dry coals, the tar is 54kg/t dry coals, and the amount of the byproduct coke is 505kg/t dry coals,
The amount of the crude benzol is 16kg/t dry coals.In mass, solids carbon content is not less than 70% in coke, and volatile matter content is not more than
5%, grain size is the 20% of coke gross mass in the particle gross mass of 40mm or more after coke screening, of the grain size in 25mm or more
Grain gross mass is the 60% of coke gross mass.
Embodiment 13
(1) ub-bituminous coal is crushed and is mixed to form low-order coal raw material with auxiliary agent, then mix shape with 1/3 coking coal of crushing again
At feed coal, feed coal is carried out using tamping machine to make molding firm by ramming, wherein in mass, the addition quality of auxiliary agent is time cigarette
The 30wt% of coal quality, the addition of the ub-bituminous coal are the 70wt% of the raw material coal quality, and the G values of the ub-bituminous coal are
35, volatile content 45%, the auxiliary agent is the asphalitine of 120 DEG C of softening point, and it is dry that the asphalitine completely cuts off air at 850 DEG C
Evaporate weightlessness 42%；
(2) molding feed coal is pushed into coke oven and carries out coking, 950 DEG C of coking temperature of control, scorch time 17 hours,
The mixture of the raw gas, tar, crude benzol that overflow is collected, while obtaining byproduct coke；
Using common process separation raw gas, tar, and crude benzol is further detached from tar, the obtained raw gas
Amount be 500Nm3The amount of/t dry coals, the tar is 54kg/t dry coals, and the amount of the byproduct coke is 505kg/t dry coals,
The amount of the crude benzol is 16kg/t dry coals.In mass, solids carbon content is not less than 74% in coke, and volatile matter content is not more than
4%, grain size is the 20% of coke gross mass in the particle gross mass of 40mm or more after coke screening, of the grain size in 25mm or more
Grain gross mass is the 60% of coke gross mass.
Embodiment 14
(1) ub-bituminous coal is crushed and is mixed to form low-order coal raw material with auxiliary agent, then mix shape with 1/3 coking coal of crushing again
At feed coal, feed coal is carried out using tamping machine to make molding firm by ramming, wherein in mass, the addition quality of auxiliary agent is time cigarette
The 25wt% of coal quality, the addition of the ub-bituminous coal are that the G values of ub-bituminous coal described in the 75wt% of the raw material coal quality are 30,
Volatile content is 65%, and the auxiliary agent is the asphalitine of 130 DEG C of softening point, and the asphalitine completely cuts off air destructive distillation at 850 DEG C
Weightlessness 40%；
(2) molding feed coal is pushed into coke oven and carries out coking, control 1000 DEG C of coking temperature, scorch time 16.5 is small
When, the raw gas of spilling, the mixture of tar, crude benzol are collected, while obtaining byproduct coke；
Using common process separation raw gas, tar, and crude benzol is further detached from tar, the obtained raw gas
Amount be 680Nm3The amount of/t dry coals, the tar is 93kg/t dry coals, and the amount of the byproduct coke is 390kg/t dry coals,
The amount of the crude benzol is 27kg/t dry coals.In mass, solids carbon content is not less than 57% in coke, and volatile matter content is not more than
4%, grain size is the 20% of coke gross mass in the particle gross mass of 40mm or more after coke screening, of the grain size in 25mm or more
Grain gross mass is the 60% of coke gross mass.
Embodiment 15
(1) ub-bituminous coal is crushed and is mixed to form low-order coal raw material with auxiliary agent, then mix shape with 1/3 coking coal of crushing again
At feed coal, feed coal is carried out using tamping machine to make molding firm by ramming, wherein in mass, the addition quality of auxiliary agent is time cigarette
The 20wt% of coal quality, the addition of the ub-bituminous coal are the 80wt% of the raw material coal quality, and the G values of the ub-bituminous coal are
20, volatile content 60%, the auxiliary agent is the asphalitine of 140 DEG C of softening point, and it is dry that the asphalitine completely cuts off air at 850 DEG C
Evaporate weightlessness 35%；
(2) molding feed coal is pushed into coke oven and carries out coking, control 1100 DEG C of coking temperature, scorch time 18 is small
When, the raw gas of spilling, the mixture of tar, crude benzol are collected, while obtaining byproduct coke；
Using common process separation raw gas, tar, and crude benzol is further detached from tar, the obtained raw gas
Amount be 680Nm3The amount of/t dry coals, the tar is 90kg/t dry coals, and the amount of the byproduct coke is 407kg/t dry coals,
The amount of the crude benzol is 27kg/t dry coals.In mass, solids carbon content is not less than 56% in coke, and volatile matter content is not more than
4%, grain size is the 20% of coke gross mass in the particle gross mass of 40mm or more after coke screening, of the grain size in 25mm or more
Grain gross mass is the 60% of coke gross mass.
Embodiment 16
(1) ub-bituminous coal is crushed and is mixed to form low-order coal raw material with auxiliary agent, then mix shape with 1/3 coking coal of crushing again
At feed coal, feed coal is carried out using tamping machine to make molding firm by ramming, wherein in mass, the addition quality of auxiliary agent is time cigarette
The 15wt% of coal quality, the addition of the ub-bituminous coal are the 55wt% of the raw material coal quality, and the G values of the ub-bituminous coal are
15, volatile content 55%, the auxiliary agent is the hard pitch of 150 DEG C of softening point, and the hard pitch completely cuts off sky at 850 DEG C
Gas destructive distillation weightlessness is less than 40%, fixes carbon content 28%, C/Hratio 8；
(2) molding feed coal is pushed into coke oven and carries out coking, 950 DEG C of coking temperature of control, scorch time 20 hours,
The mixture of the raw gas, tar, crude benzol that overflow is collected, while obtaining byproduct coke；
Using common process separation raw gas, tar, and crude benzol is further detached from tar, the obtained raw gas
Amount be 570Nm3The amount of/t dry coals, the tar is 62kg/t dry coals, and the amount of the byproduct coke is 492kg/t dry coals,
The amount of the crude benzol is 18kg/t dry coals.In mass, solids carbon content is not less than 64% in coke, and volatile matter content is not more than
5%, grain size is the 20% of coke gross mass in the particle gross mass of 40mm or more after coke screening, of the grain size in 25mm or more
Grain gross mass is the 60% of coke gross mass.
Embodiment 17
(1) ub-bituminous coal is crushed and is mixed to form low-order coal raw material with auxiliary agent, then mix shape with 1/3 coking coal of crushing again
At feed coal, feed coal is carried out using tamping machine to make molding firm by ramming, wherein in mass, the addition quality of auxiliary agent is time cigarette
The 10wt% of coal quality, the addition of the ub-bituminous coal are the 60wt% of the raw material coal quality, and the G values of the ub-bituminous coal are
20, volatile content 50%, the auxiliary agent is the hard pitch of 170 DEG C of softening point, and the hard pitch completely cuts off sky at 850 DEG C
Gas destructive distillation weightlessness 42%, fixed carbon content 30%, C/Hratio 11；
(2) molding feed coal is pushed into coke oven and carries out coking, control 1200 DEG C of coking temperature, scorch time 24 is small
When, the raw gas of spilling, the mixture of tar, crude benzol are collected, while obtaining byproduct coke；
Using common process separation raw gas, tar, and crude benzol is further detached from tar, the obtained raw gas
Amount be 550Nm3The amount of/t dry coals, the tar is 54kg/t dry coals, the amount 600kg/t dry coals of the byproduct coke, institute
The amount for stating crude benzol is 16kg/t dry coals.In mass, solids carbon content is not less than 70% in coke, and volatile matter content is not more than
3%, grain size is the 10% of coke gross mass in the particle gross mass of 40mm or more after coke screening, of the grain size in 25mm or more
Grain gross mass is the 55% of coke gross mass.
Embodiment 18
(1) ub-bituminous coal is crushed and is mixed to form low-order coal raw material with auxiliary agent, then mix shape with 1/3 coking coal of crushing again
At feed coal, feed coal is carried out using tamping machine to make molding firm by ramming, wherein in mass, the addition quality of auxiliary agent is time cigarette
The 5wt% of coal quality, the addition of the ub-bituminous coal are the 50wt% of the raw material coal quality, and the G values of the ub-bituminous coal are 15,
Volatile content is 45%, and the auxiliary agent is the hard pitch of 190 DEG C of softening point, and the hard pitch completely cuts off air at 850 DEG C
Destructive distillation weightlessness 45%, fixed carbon content 28%, C/Hratio 10；
(2) molding feed coal is pushed into coke oven and carries out coking, 950 DEG C of coking temperature of control, scorch time 20 hours,
The mixture of the raw gas, tar, crude benzol that overflow is collected, while obtaining byproduct coke；
Using common process separation raw gas, tar, and crude benzol is further detached from tar, the obtained raw gas
Amount be 380Nm3The amount of/t dry coals, the tar is 46kg/t dry coals, and the amount of the byproduct coke is 653kg/t dry coals,
The amount of the crude benzol is 16kg/t dry coals.In mass, solids carbon content is not less than 72% in coke, and volatile matter content is not more than
4%, grain size is the 10% of coke gross mass in the particle gross mass of 40mm or more after coke screening, of the grain size in 25mm or more
Grain gross mass is the 55% of coke gross mass.
Embodiment 19
(1) lignite is crushed and is mixed to form low-order coal raw material with auxiliary agent, be then mixed to form again with 1/3 coking coal of crushing
Feed coal carries out feed coal using tamping machine to make molding firm by ramming, wherein in mass, the addition quality of auxiliary agent is lignite matter
The 10wt% of amount, the addition of the lignite are the 80wt% of the raw material coal quality, and the G values of the lignite are 20, fugitive constituent
Content is 55%, and the auxiliary agent is the asphalitine that softening point is more than 110 DEG C, and the asphalitine completely cuts off air destructive distillation mistake at 850 DEG C
Weigh 45%；
(2) molding feed coal is pushed into coke oven and carries out coking, 850 DEG C of coking temperature of control, scorch time 16 hours,
The mixture of the raw gas, tar, crude benzol that overflow is collected, while obtaining byproduct coke；
Using common process separation raw gas, tar, and crude benzol is further detached from tar, the obtained raw gas
Amount be 550Nm3The amount of/t dry coals, the tar is 62kg/t dry coals, and the amount of the byproduct coke is 458kg/t dry coals,
The amount of the crude benzol is 18kg/t dry coals.In mass, solids carbon content is not less than 55% in coke, and volatile matter content is not more than
6%, grain size is the 15% of coke gross mass in the particle gross mass of 40mm or more after coke screening, of the grain size in 25mm or more
Grain gross mass is the 60% of coke gross mass.
Embodiment 20
(1) lignite is crushed and is mixed to form low-order coal raw material with auxiliary agent, be then mixed to form again with 1/3 coking coal of crushing
Feed coal carries out feed coal using tamping machine to make molding firm by ramming, wherein in mass, the addition quality of auxiliary agent is lignite matter
The 30wt% of amount, the addition of the lignite are the 60wt% of the raw material coal quality, and the G values of the lignite are 20, fugitive constituent
Content is 55%, and the auxiliary agent is the hard pitch of 150 DEG C of softening point, and the hard pitch completely cuts off air destructive distillation mistake at 850 DEG C
30% is weighed, carbon content 30%, C/Hratio 8 are fixed；
(2) molding feed coal is pushed into coke oven and carries out coking, 950 DEG C of coking temperature of control, scorch time 24 hours,
The mixture of the raw gas, tar, crude benzol that overflow is collected, while obtaining byproduct coke；
Using common process separation raw gas, tar, and crude benzol is further detached from tar, the obtained raw gas
Amount be 400Nm3The amount of/t dry coals, the tar is 48kg/t dry coals, and the amount of the byproduct coke is 635kg/t dry coals,
The amount of the crude benzol is 17kg/t dry coals.In mass, solids carbon content is not less than 75% in coke, and volatile matter content is not more than
4%, grain size is the 20% of coke gross mass in the particle gross mass of 40mm or more after coke screening, of the grain size in 25mm or more
Grain gross mass is the 55% of coke gross mass.
Comparative example 1
It carries out making molding firm by ramming using 1/3 coking coal of tamping machine pair, molding feed coal is pushed into coke oven and carries out coking, control
950 DEG C of coking temperature processed, scorch time 24 hours collect the raw gas of spilling, the mixture of tar, crude benzol, while obtaining pair
Product coke；
Using common process separation raw gas, tar, and crude benzol is further detached from tar, the obtained raw gas
Amount be 365Nm3The amount of/t dry coals, the tar is 34.9kg/t dry coals, and the amount of the byproduct coke is ton dry coal
The amount of 677kg/t dry coals, the crude benzol is 10.6kg/t dry coals.In mass, solids carbon content is not less than 72% in coke, waves
Hair divides content to be not more than 5%, and grain size is the 60% of coke gross mass in the particle gross mass of 40mm or more after coke screening, grain size
It is the 60% of coke gross mass in the particle gross mass of 25mm or more.
Comparative example 2
(1) lignite is crushed and is mixed to form low-order coal raw material with auxiliary agent, be then mixed to form again with 1/3 coking coal of crushing
Feed coal carries out feed coal using tamping machine to make molding firm by ramming, wherein in mass, the addition of the lignite is described
The 60wt% of raw material coal quality, the addition quality of auxiliary agent are the 60wt% of lignite quality, and the G values of the lignite are 20, fugitive constituent
Content is 55%, and the auxiliary agent is the asphalitine of 80 DEG C of softening point, and it is weightless that the asphalitine completely cuts off air destructive distillation at 850 DEG C
60%；
(2) molding feed coal is pushed into coke oven and carries out coking, 950 DEG C of coking temperature of control, scorch time 24 hours,
The mixture of the raw gas, tar, crude benzol that overflow is collected, while obtaining byproduct coke；
Using common process separation raw gas, tar, and crude benzol is further detached from tar, the obtained raw gas
Amount be 320Nm3The amount of/ton dry coal, the tar is 44kg/t dry coals, and the amount of the byproduct coke is 870kg/t dry coals,
The amount of the crude benzol is 18kg/t dry coals.In mass, solids carbon content is not less than 58% in coke, and volatile matter content is not more than
4%, grain size is the 15% of coke gross mass in the particle gross mass of 40mm or more after coke screening, of the grain size in 25mm or more
Grain gross mass is the 55% of coke gross mass.
Comparative example 3
(1) lignite is crushed and is mixed with auxiliary agent, molding make firm by ramming to feed coal using tamping machine, wherein auxiliary agent
The 60wt% that quality is lignite quality is added, the G values of the lignite are 20, and volatile content 55%, the auxiliary agent is softening
The asphalitine of 80 DEG C of point, the asphalitine completely cut off air destructive distillation weightlessness 60% at 850 DEG C；
(2) molding feed coal is pushed into coke oven and carries out coking, 950 DEG C of coking temperature of control, scorch time 24 hours,
The mixture of the raw gas, tar, crude benzol that overflow is collected, while obtaining byproduct coke；
Using common process separation raw gas, tar, and crude benzol is further detached from tar, the obtained raw gas
Amount be 320Nm3The amount of/t dry coals, the tar is 50kg/t dry coals, and the amount of the byproduct coke is 873kg/t dry coals,
The amount of the crude benzol is 5kg/t dry coals.In mass, solids carbon content is not less than 55% in coke, and volatile matter content is not more than
4%, grain size is the 15% of coke gross mass in the particle gross mass of 40mm or more after coke screening, of the grain size in 25mm or more
Grain gross mass is the 55% of coke gross mass.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.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 variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (7)
1. a kind of raw material of coking process, which is characterized in that
Including low-order coal and auxiliary agent, the auxiliary agent is to completely cut off air destructive distillation weightlessness at 850 DEG C to be less than 50% organic binder, described
Organic binder is asphalitine, and the asphalitine is coal asphalt or petroleum asphalt, and softening point is not less than 120 DEG C, the auxiliary agent
Addition be the low order coal quality 5-40wt%.
2. the raw material of coking process according to claim 1, which is characterized in that the softening point of the pitch is not less than 140
℃。
3. the raw material of coking process according to claim 2, which is characterized in that the pitch is hard pitch, with quality
Meter, the fixation carbon content of the hard pitch is 25% or more, C/Hratio 8-11.
4. the raw material of coking process according to claim 3, which is characterized in that in mass, the addition of the auxiliary agent
For the 10-30wt% of the low order coal quality.
5. according to the raw material of any coking process of claim 1-4, which is characterized in that further include scala media coal, high-order coal
Or one or more of middle high-order coal, in mass, the addition of the low-order coal is the 50- of the material quality
80wt%.
6. the raw material of coking process according to claim 5, which is characterized in that further include scala media coal, high-order coal or middle height
One or more of rank coal, in mass, the addition of the low-order coal are the 50-60wt% of the material quality.
7. the raw material of coking process according to claim 6, which is characterized in that the G values of the low-order coal are less than 50, volatilization
Part content is more than 40%.
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| CN107236579A (en) * | 2016-03-29 | 2017-10-10 | 北京三聚环保新材料股份有限公司 | The moulding process and the molding mass as made from the technique of a kind of low-order coal and rubbish |
| CN107236555B (en) * | 2016-03-29 | 2020-02-28 | 北京三聚环保新材料股份有限公司 | Process for improving quality of molding material containing low-rank coal, garbage and biomass |
| CN107236563A (en) * | 2016-03-29 | 2017-10-10 | 北京三聚环保新材料股份有限公司 | A kind of technique that upgrading is carried out to the molding mass containing low-order coal and rubbish |
| CN107236564B (en) * | 2016-03-29 | 2020-02-28 | 北京三聚环保新材料股份有限公司 | Process for coking molding material containing low-rank coal and biomass |
| CN107236561B (en) * | 2016-03-29 | 2020-02-28 | 北京三聚环保新材料股份有限公司 | Low-rank coal, garbage and biomass molding process and molding material prepared by process |
| CN107236562A (en) * | 2016-03-29 | 2017-10-10 | 北京三聚环保新材料股份有限公司 | A kind of technique that coking is carried out to the molding mass containing low-order coal and rubbish |
| CN107236560B (en) * | 2016-03-29 | 2020-02-28 | 北京三聚环保新材料股份有限公司 | Process for coking molding material containing low-rank coal, garbage and biomass |
| CN107236566B (en) * | 2016-03-29 | 2020-11-06 | 北京三聚环保新材料股份有限公司 | Low-rank coal and biomass forming process and forming material prepared by process |
| CN107236556B (en) * | 2016-03-29 | 2020-05-01 | 北京三聚环保新材料股份有限公司 | Process for upgrading molding material containing low-rank coal and biomass |
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| JP4879706B2 (en) * | 2006-10-31 | 2012-02-22 | 新日本製鐵株式会社 | Method for producing blast furnace coke |
| JP4576463B2 (en) * | 2009-02-03 | 2010-11-10 | Ｊｘ日鉱日石エネルギー株式会社 | Method for producing caking material for coke production and method for producing coke |
| CN101787296A (en) * | 2010-03-15 | 2010-07-28 | 攀钢集团钢铁钒钛股份有限公司 | Coking method of lignite addition and coal charge |
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