CN105400531B - A kind of technique that upgrading is carried out to the coal raw material containing low-order coal using tamping coke furnace - Google Patents
A kind of technique that upgrading is carried out to the coal raw material containing low-order coal using tamping coke furnace Download PDFInfo
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Abstract
The invention discloses a kind of techniques carrying out upgrading to the coal raw material containing low-order coal using tamping coke furnace, (1) low-order coal is crushed and is mixed to form low-order coal raw material with auxiliary agent, again feed coal is mixed to form with the non-low-order coal raw material of crushing, feed coal is carried out using tamping machine to make molding firm by ramming, wherein non-low-order coal is one or more of scala media coal, high-order coal or middle high-order coal；(2) molding feed coal is pushed into coke oven and carries out upgrading, control upgrading temperature is more than 800 DEG C, and the time is not less than 15 hours, collects the raw gas of spilling, the mixture of tar, crude benzol, while obtaining byproduct coke；Auxiliary agent is the organic binder for completely cutting off air destructive distillation weightlessness at 850 DEG C and being less than 50%.The technique that upgrading is carried out to the coal raw material containing low-order coal using tamping coke furnace in the present invention, the problem of not only solving low existing tamping coke furnace availability, coking industry excess capacity also solves the problem for keeping its application limited due to no large-scale industrialization equipment for low-order coal.
Description
Technical field
The present invention relates to a kind of process for upgrading of low-order coal, and in particular to a kind of to use existing tamping coke furnace to containing low order
The coal raw material of coal carries out the technique of upgrading, belongs to low-order coal upgrading transformation technology field.
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 so that coke need
The amount of asking reduction, price fall, to force coke-oven plant to reduce coke output.
Contradictory to be, once coke output reduces, tamping coke furnace can be deactivated, and tamping coke furnace is once out of service
It can scrap, therefore in order to protect the tamping coke furnace equipment for furnishing a huge amount of money for invest to build, would have to maintain coke oven in minimum level
Operation brings the excess capacity of coking industry to cause coke output that cannot be reduced by market demand, two contradict under
How in the case where meeting coke normal volume, the operation of tamping coke furnace is kept to become key.
Low-order coal is the coal of China's rich reserves and there is no the enlarged equipment for low-order coal application at present, if
The tamping coke furnace that middle high-order coking of coal technique can be used is applied in the process for upgrading of low-order coal, then not only facilitating solution
Certainly the problem of coking industry excess capacity, moreover it is possible to be promoted the application of low-order coal.But low-order coal have volatile matter it is high,
The high feature of easy dusting, ash content, the middle high-order coal feedstock specifications used with existing tamping coke furnace are entirely different, it is not easy first
The characteristics of molding, determines that low-order coal can not be pushed into tamping coke furnace carries out coking, the solid production that secondly low-order coal obtains after upgrading
Product are the low-quality product of dusting, and the product of dusting causes tamping coke furnace to be difficult to coke pushing outward, still limits tamping coke furnace again
Use, most importantly the temperature of low-order coal upgrading need to be maintained between 200-800 DEG C, and tamping coke furnace need exist
800 DEG C used above, theoretically so that the low-order coal product obtained after high-temperature retorting loses use value.
Invention content
For solve the problems, such as in the prior art low-order coal cannot achieve large-scale application and existing coking industry excess capacity,
The low problem of tamping coke furnace availability, to provide it is a kind of using tamping coke furnace to containing low-order coal coal raw material carry out upgrading
Technique.
For this purpose, the technical solution that the present invention takes is,
A kind of technique carrying out upgrading to the coal raw material containing low-order coal using tamping coke furnace, including,
(1) by low-order coal crush and be mixed to form low-order coal raw material with auxiliary agent, then again with the non-low-order coal raw material of crushing
It is mixed to form feed coal, tamping machine is used make firm by ramming the wherein described non-low-order coal of molding to feed coal as scala media coal, high-order
One or more of coal or middle high-order coal；
(2) molding feed coal is pushed into coke oven and carries out upgrading, control upgrading temperature is more than 800 DEG C, and the upgrading time is not
Less than 15 hours, the raw gas of spilling, the mixture of tar, crude benzol are collected, while obtaining byproduct coke；
The wherein described auxiliary agent is the organic binder for completely cutting off air destructive distillation weightlessness at 850 DEG C and being less than 50%.
In the above-mentioned technique for carrying out upgrading to the coal raw material containing low-order coal using tamping coke furnace, the organic binder
It is more than 100 DEG C of asphalitine for softening point.
In the above-mentioned technique for carrying out upgrading to the coal raw material containing low-order coal using tamping coke furnace, the auxiliary agent be coal or
Petroleum raw material reacts the pitch to be formed, and the softening point of the pitch is not less than 120 DEG C.
In the above-mentioned technique for carrying out upgrading to the coal raw material containing low-order coal using tamping coke furnace, the softening of the pitch
Point is not less than 140 DEG C.
In the above-mentioned technique for carrying out upgrading to the coal raw material containing low-order coal using tamping coke furnace, the pitch is high temperature
Pitch, in mass, the fixation carbon content of the hard pitch is 25% or more, C/Hratio 8-11.
It is in mass, described in the above-mentioned technique for carrying out upgrading to the coal raw material containing low-order coal using tamping coke furnace
The addition of auxiliary agent is the 5-40wt% of the low order coal quality.
It is in mass, described in the above-mentioned technique for carrying out upgrading to the coal raw material containing low-order coal using tamping coke furnace
The addition of auxiliary agent is the 10-30wt% of the low order coal quality.
It is in mass, described in the above-mentioned technique for carrying out upgrading to the coal raw material containing low-order coal using tamping coke furnace
The addition of low-order coal is the 50-80wt% of raw material coal quality.
It is in mass, described in the above-mentioned technique for carrying out upgrading to the coal raw material containing low-order coal using tamping coke furnace
The addition of low-order coal is the 50-70wt% of raw material coal quality.
In the above-mentioned technique for carrying out upgrading to the coal raw material containing low-order coal using tamping coke furnace, the G of the low-order coal
Value is less than 50, and volatile content is more than 40%.
In the above-mentioned technique for carrying out upgrading to the coal raw material containing low-order coal using tamping coke furnace, in the step (2)
Upgrading temperature is 850-1000 DEG C.
Compared with prior art, the invention has the advantages that,
(1) technique for being carried out upgrading in the present invention to the coal raw material containing low-order coal using tamping coke furnace, is not only solved
The problem of existing tamping coke furnace availability is low, coking industry excess capacity also solves for low-order coal due to without large-scale
The problem that industrial equipment keeps its application limited.
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, upgrading 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 coal upgrading, 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.
(2) technique for carrying out upgrading in the present invention to the coal raw material containing low-order coal using tamping coke furnace, the auxiliary agent are
Coal or petroleum raw material react the pitch to be formed, and the softening point of the pitch is not less than 120 DEG C, and it is complete to improve low-order coal upgrading
The quality of Cheng Houqi solid products-coke, volatile matter can be used for sending out no more than the 3-4% by-product cokes made in coke
Electricity, gas making and other chemical industry purposes.
Specific implementation mode
The technique for carrying out upgrading to the coal raw material containing low-order coal using tamping coke furnace of the application is suitable for all low
Rank coal, scala media coal, high-order coal or middle high-order coal raw material, for purposes of illustration only, low-order coal is with ub-bituminous coal or lignite in following embodiments
For, the coal raw material of non-low-order coal is by taking 1/3 coking coal as an example.Wherein, the non-low orders of quality × 75%+ of quality=low-order coal of dry coal
The quality of the quality of coal × 90%+ auxiliary agents, 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 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 upgrading, 850 DEG C of control upgrading temperature, 16 hours upgrading time,
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.
Embodiment 2
(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 upgrading, 900 DEG C of control upgrading temperature, the upgrading 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.
Embodiment 3
(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 upgrading, 950 DEG C of control upgrading temperature, 17 hours upgrading time,
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 43.6kg/t dry coals, and the amount of the byproduct coke is dry for 667kg/t
The amount of coal, the crude benzol is 13.6kg/t dry coals.
Embodiment 4
(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 upgrading, 1000 DEG C of control upgrading temperature, the upgrading 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.
Embodiment 5
(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 upgrading, 1100 DEG C of control upgrading temperature, the upgrading 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.
Embodiment 6
(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 upgrading, 950 DEG C of control upgrading temperature, 20 hours upgrading time,
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.
Embodiment 7
(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 upgrading, 1200 DEG C of control upgrading temperature, the upgrading 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 550_Nm3The 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.
Embodiment 8
(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 upgrading, 950 DEG C of control upgrading temperature, 20 hours upgrading time,
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.
Embodiment 9
(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 upgrading, 850 DEG C of control upgrading temperature, 16 hours upgrading time,
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.
Embodiment 10
(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 upgrading, 950 DEG C of control upgrading temperature, 24 hours upgrading time,
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.
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 upgrading, control
950 DEG C of upgrading temperature processed, 24 hours upgrading time 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.
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 upgrading, 950 DEG C of control upgrading temperature, 24 hours upgrading time,
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.
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 technique carrying out upgrading to the coal raw material containing low-order coal using tamping coke furnace, which is characterized in that
(1) low-order coal is crushed and is mixed to form low-order coal raw material with auxiliary agent, then mixed again with the non-low-order coal raw material of crushing
Formed feed coal, feed coal is carried out using tamping machine to make molding firm by ramming, wherein the non-low-order coal be scala media coal, high-order coal or
One or more of middle high-order coal, the addition of the auxiliary agent are the 5-40wt% of the low order coal quality, the low-order coal
Addition be raw material coal quality 50-80wt%；
(2) molding feed coal is pushed into coke oven and carries out upgrading, control upgrading temperature is more than 800 DEG C, and the upgrading time is not less than
15 hours, the raw gas of spilling, the mixture of tar, crude benzol are collected, while obtaining byproduct coke；
The wherein described auxiliary agent is the organic binder for completely cutting off air destructive distillation weightlessness at 850 DEG C and being less than 50%, the organic binder
For asphalitine, the asphalitine is coal asphalt or petroleum asphalt, and the softening point of the pitch is not less than 120 DEG C.
2. the technique according to claim 1 for carrying out upgrading to the coal raw material containing low-order coal using tamping coke furnace, special
Sign is that the softening point of the pitch is not less than 140 DEG C.
3. the technique according to claim 2 for carrying out upgrading to the coal raw material containing low-order coal using tamping coke furnace, special
Sign is, the pitch is hard pitch, and in mass, the fixation carbon content of the hard pitch is 25% or more, C/Hratio
For 8-11.
4. the technique according to claim 3 for carrying out upgrading to the coal raw material containing low-order coal using tamping coke furnace, special
Sign is that in mass, the addition of the auxiliary agent is the 10-30wt% of the low order coal quality.
5. according to any works for carrying out upgrading to the coal raw material containing low-order coal using tamping coke furnace of claim 1-4
Skill, which is characterized in that in mass, the addition of the low-order coal is the 50-70wt% of raw material coal quality.
6. the technique according to claim 5 for carrying out upgrading to the coal raw material containing low-order coal using tamping coke furnace, special
Sign is that the G values of the low-order coal are less than 50, and volatile content is more than 40%.
7. the technique according to claim 6 for carrying out upgrading to the coal raw material containing low-order coal using tamping coke furnace, special
Sign is that upgrading temperature is 850-1000 DEG C in the step (2).
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