CN106929061A - A kind of coking process of the moulded coal raw material containing low-order coal and granulated garbage - Google Patents
A kind of coking process of the moulded coal raw material containing low-order coal and granulated garbage Download PDFInfo
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- CN106929061A CN106929061A CN201511020529.0A CN201511020529A CN106929061A CN 106929061 A CN106929061 A CN 106929061A CN 201511020529 A CN201511020529 A CN 201511020529A CN 106929061 A CN106929061 A CN 106929061A
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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
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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
- C10B55/00—Coking mineral oils, bitumen, tar, and the like or mixtures thereof with solid carbonaceous material
- C10B55/02—Coking mineral oils, bitumen, tar, and the like or mixtures thereof with solid carbonaceous material with solid materials
-
- 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
- C10B57/045—Other carbonising or coking processes; Features of destructive distillation processes in general using charges of special composition containing mineral oils, bitumen, tar or the like or mixtures thereof
-
- 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
- C10B57/06—Other carbonising or coking processes; Features of destructive distillation processes in general using charges of special composition containing additives
-
- 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
- C10B57/08—Non-mechanical pretreatment of the charge, e.g. desulfurization
- C10B57/10—Drying
Abstract
The invention provides a kind of coking process of the moulded coal raw material containing low-order coal and granulated garbage, including, low-order coal moulded coal layer raw material is mixed to form after rubbish is pelletized with low-order coal, organic binder bond；Scala media coal, high-order coal or middle high-order coal to crushing are press-formed, form non-low-order coal moulded coal layer, and add low order coal type coal seam raw material on the non-low-order coal moulded coal layer, continuation is press-formed to low order coal type coal seam raw material, the low-order coal moulded coal layer on the non-low-order coal moulded coal layer is formed, so as to form final moulded coal raw material；Coking is carried out to the moulded coal raw material, raw gas, tar, crude benzol and coke is obtained.Coking process of the invention not only solves prior art because making low-order coal and the limited problem of spam application in the absence of large-scale industrialization equipment, also effectively overcome that existing tamping coke furnace availability is low, coking industry production capacity surplus problem so that the existing considerable economic benefit of the present invention has certain social benefit again.
Description
Technical field
The present invention relates to a kind of moulded coal raw material containing low-order coal and granulated garbage suitable for tamping coke furnace
Coking process, belong to low-order coal upgrading transformation technology field.
Background technology
Since 18th century, coal has turned into one of widely used energy of human world, with regard to China
Energy consumption structure for, current coal occupies 70% or so, is the national main energy sources depended on for existence.
According to the difference of structure and composition, coal is divided into lignite, bituminous coal and anthracite three major types, its metabituminous coal
It is divided into lower-grade metamorphic bituminous and mesometamorphism bituminous coal again, lower-grade metamorphic bituminous also referred to as ub-bituminous coal, itself and lignite one
Rise and be referred to as " low-order coal ".According to statistics, the reserves of China's low-order coal account for national explored coal reserves
More than 55%, up to 561,200,000,000 tons, but because low-order coal is used as the product at incoalation initial stage,
With phosphorus content it is low, moisture is high, easy efflorescence, easy spontaneous combustion, fugitive constituent high, immersion intensity difference, anti-dropping
The features such as intensity difference, thus the serious direct exploitation for limiting low-order coal, this undoubtedly causes huge
The big wasting of resources.In addition, increasingly increase and high-quality coal stock number with domestic energy demand
Fall sharply, the upgrading conversion of low-order coal already turns into current China's energy research with comprehensive utilization with exploitation
Major fields.
So far, the Upgrading Processes both at home and abroad for low-order coal are broadly divided into pyrolysis upgrading skill
Art, non-evaporating dehydrolysis upgrading technology and shaping upgrading technology three major types, wherein, for shaping upgrading skill
For art, in forming process, the physical action such as high pressure or shearing is to its gel structure and hole for low-order coal
Slot sytem generates irreversible destruction, it is thus possible to inherently lifts the coal rank of low-order coal, makes it
Degree of coalification is also improved therewith, so as to the dust for solving drying low-order coal is big, easily water suction, easily again
In deficiencies such as spontaneous combustions.But current low-order coal upgrading technology is in experimental study and engineering initially should
With the stage, the equipment in the absence of its heavy industrialization application is made thus limit the exploitation of low-order coal
Utilize.
China has the garbage compost work of current implementation for the recycling mode of house refuse at this stage
Skill and the garbage derivatived fuel technology studied, wherein for garbage derivatived fuel technology, though
The right technology has obtained commercial application in day, moral, Mei Deng developed countries, but because China is current
Do not possess the separate waste collection system of specification still, so foreign countries are for the sorting rubbish of component stabilization
Fuel manufacturing technology cannot be applied to the high humidity composting of China, therefore, the rubbish of China should be directed to
Rubbish reclaims present situation, and design research and development are adapted to the process for treating garbage as resource of China's national situation.
Tamping coke furnace be coal coking process in the maximization equipment that uses, its floor space is wide, investment
Capital cost is big.Coking of coal is to produce coke through high-temperature retorting by raw material of coal, while acquisition coal gas,
Coal tar simultaneously reclaims a kind of coal conversion process of other chemical products, and its coke product is mainly metallurgical coke
Or chemical industry is burnt.Because the quality requirements industrially to this kind of coke are very high so that production metallurgy is burnt or changes
The coal raw material that work Jiao is used is mainly coking coal, 1/3 coking coal, bottle coal, rich coal, lean coal, meager lean coal
Etc. coal, belong to mesometamorphism bituminous coal, but the shortage of coal resources in recent years, particularly for coking
The reduction of the middle high-quality coal raw material of industry so that the cost of material of coking industry is growing day by day, in addition
Steel, metallurgy etc. largely needed the decline of metallurgical coke or the burnt industry of chemical industry in recent years, caused coke to produce
The demand of product is reduced, price declines, so as to force coke-oven plant drastically to reduce coke output, thus band
Come consequence be tamping coke furnace out of service, once and coke oven disable will scrap, then in order to protect
Furnish a huge amount of money for the tamping coke furnace equipment invested to build, would have to be maintained in minimum level the operation of coke oven, this
Sample not only reduces the availability of tamping coke furnace, can also cause the production capacity surplus of coking industry.Therefore,
The coking industry for being on the verge of negative growth how is saved, the availability of tamping coke furnace is improved, coking industry is solved
The problem of production capacity surplus has turned into the bottleneck of current containment coking industry development.
In sum, how tamping coke furnace is applied to low-order coal and rubbish under current situation
Recycling field so that above mentioned problem is all readily solved, be puzzlement those skilled in the art
A technical barrier.
The content of the invention
Present invention solves the technical problem that being the money for overcoming prior art to realize low-order coal and rubbish
Defect and the low problem of existing tamping coke furnace availability that source utilizes, so provide one kind be suitable to smash
Gu the coking process of the moulded coal raw material containing low-order coal and granulated garbage of coke oven.
Therefore, the present invention realizes that the technical scheme of above-mentioned purpose is：
A kind of coking process of the moulded coal raw material containing low-order coal and granulated garbage, including：
(1) combustiblerefuse and/or Compostable dried, crush and be pressed into particulate matter, it is standby；
(2) low-order coal and organic binder bond are mixed to form mixture, the mixture is after crushed again
Mix to form low-order coal moulded coal layer raw material with the particulate matter of step (1), it is standby；
Wherein, the organic binder bond is weightless less than 50% in 850 DEG C of destructive distillation completely cut off under air conditionses,
The addition of the particulate matter is the 20-50% of the low-order coal moulded coal layer material quality in mass；
(3) one or more in scala media coal, high-order coal or the middle high-order coal crushed are pressurizeed into
Type, forms non-low-order coal moulded coal layer, and add the low of step (2) on the non-low-order coal moulded coal layer
Rank coal type coal seam raw material, continues to be press-formed low-order coal moulded coal layer raw material, and formation is located at
Low-order coal moulded coal layer on the non-low-order coal moulded coal layer, so as to form final moulded coal raw material；
(4) coking treatment will be carried out in the moulded coal raw material push-in coke oven of step (3), controls coking temperature
It is 950-1050 DEG C to spend, scorch time be not less than 16 hours, collect overflow raw gas, tar,
The mixture of crude benzol, while obtaining byproduct coke.
The moisture content of the dried combustiblerefuse and/or Compostable is not more than 17wt%；It is described
The density of particulate matter is 1.0-1.2g/cm3。
In mass, the addition of the organic binder bond is the 5-40% of the low-order coal quality.
The organic binder bond is asphalitine of the softening point more than 100 DEG C.
The asphalitine is coal asphalt or petroleum asphalt of the softening point not less than 120 DEG C.
The asphalitine is hard pitch, and in mass, the fixed carbon content of the hard pitch is 25%
More than, C/Hratio is 8-11.
The G values of the low-order coal are more than 40% less than 50, volatile matter content；
In mass, the quality of the low-order coal moulded coal layer is the 10-70% of the moulded coal material quality.
The quality of the low-order coal moulded coal layer is the 40-60% of the moulded coal material quality.
The addition of the particulate matter is the 20-35% of the low-order coal moulded coal layer quality.
The coking treatment is carried out in tamping coke furnace, and the moulded coal raw material is smash in tamping machine
Gu shaping.
The particulate matter that coking process of the present invention is used can be arbitrary shape, and its volume is not with
More than 25cm3It is advisable.
Above-mentioned technical proposal of the invention has the following advantages that：
1st, the coking process of the moulded coal raw material containing low-order coal and granulated garbage that the present invention is provided, passes through
The weightless organic binder bond less than 50% of destructive distillation under 850 DEG C of isolation air conditionses is added in, using its bonding
On the one hand property will can enable low-order coal and granulated garbage push away by low-order coal and granulated garbage molding bonded
Enter and carry out in tamping coke furnace coking treatment, on the other hand also cause that low-order coal and granulated garbage coking are completed
Solid product afterwards is not pulverized easily, it is easy to the coke pushing of tamping coke furnace, it is often more important that above-mentioned organic adhesive
After agent mixes with low-order coal and granulated garbage, the active ingredient in organic binder bond can promote low-order coal and
The degraded at high temperature of high molecular polymer in rubbish, it is former so as to be favorably improved low-order coal and rubbish
The oil and gas production of material, makes oil gas total amount increase production more than 10%.
Also, coking process of the invention is arranged on non-low-order coal moulded coal layer by by low-order coal moulded coal layer
On so that oozed to non-low order coal type under the liquid that low-order coal moulded coal layer is produced in high temperature grading process
In coal seam, the quality of the coke that low-order coal moulded coal layer is produced is favorably improved.Thus, Jiao of the invention
Chemical industry skill not only solves prior art because making low-order coal and rubbish in the absence of large-scale industrialization equipment
The limited problem of rubbish application, also effectively overcomes that existing tamping coke furnace availability is low, coking industry is produced
The superfluous problem of energy.
Coking process of the invention is made full use of during high-temperature retorting can make combustiblerefuse, Compostable
Organic matter changes olefiant gas and residue can be used as the burnt characteristic of chemical industry, by embedded in low-order coal
Appropriate granulated garbage, not only contributes to be still ensured that under conditions of moulded coal raw material production cost is reduced
Oil gas higher and coke yield, can also effectively realize the recycling to rubbish so that the present invention
The existing considerable economic benefit of coking process have certain social benefit again.
2nd, the coking process of the moulded coal raw material containing low-order coal and granulated garbage that the present invention is provided, preferably
Organic binder bond is coal asphalt or petroleum asphalt of the softening point not less than 120 DEG C, can so improve low-order coal
With the quality of the solid product-coke after garbage raw material upgrading so that the volatile matter in coke is not more than
3-4%, so as to can be used to generating electricity, gas making and other chemical industry purposes.
Specific embodiment
Technical scheme will be clearly and completely described below, it is clear that described
Embodiment is a part of embodiment of the invention, rather than whole embodiments.Based in the present invention
Embodiment, it is all that those of ordinary skill in the art are obtained under the premise of creative work is not made
Other embodiment, belongs to the scope of protection of the invention.Additionally, invention described below is different
As long as involved technical characteristic does not constitute conflict and can just be combined with each other each other in implementation method.
Coal composition in coking process of the present invention is applied to all of low-order coal, scala media coal, height
Rank coal or middle high-order coal raw material.For purposes of illustration only, the low-order coal in following embodiments is with ub-bituminous coal or brown
As a example by coal, the coal raw material of non-low-order coal is by taking 1/3 coking coal or coking coal as an example.For purposes of illustration only, following realities
The low-order coal in example is applied by taking ub-bituminous coal or lignite as an example, the coal raw material of non-low-order coal is with 1/3 coking coal or Jiao
As a example by coal.For ease of comparing and illustrating, in following examples, wt% represents weight/mass percentage composition, dry coal
Quality=(quality of the non-low-order coals of quality × 85%+ of the quality of low-order coal × 75%+ granulated garbages
The quality of × 90%+ organic binder bonds), " kg/t dry coals " refers to kilogram number of the product that dry coal per ton is obtained,
“Nm3/ t dry coals " refer to that the volume of the raw gas that dry coal per ton is obtained is converted into 25 DEG C, 1 normal atmosphere
The cubic meter number of pressure.
Embodiment 1
(1) it is below 17wt% by combustiblerefuse drying to moisture content, crushing and be pressed into density is
1.0g/cm3Particulate matter, it is standby；
(2) particulate matter after crushing ub-bituminous coal and organic binder bond jointly again with step (1) is mixed,
Low-order coal moulded coal layer raw material is formed, it is standby；
Wherein, the G values of ub-bituminous coal are 45, and volatile content is more than 40%；Organic binder bond be
Destructive distillation weightlessness under 850 DEG C of isolation air conditionses is 45% coal tar pitch, and its softening point is 105 DEG C；
In the raw material of low order coal type coal seam, in mass, the addition of particulate matter is low-order coal moulded coal layer raw material
The 20wt% of quality, the addition of organic binder bond is the 40wt% of ub-bituminous coal quality；
(3) 1/3 coking coal crushed is carried out using tamping machine making shaping firm by ramming, forms non-low order coal type
Coal seam, and the low-order coal moulded coal layer raw material of step (2) is added on the non-low-order coal moulded coal layer, continue
Low-order coal moulded coal layer raw material is carried out making shaping firm by ramming using tamping machine, is formed and is located at non-low-order coal moulded coal
Low-order coal moulded coal layer on layer, so as to form final moulded coal raw material；
In mass, the addition of low-order coal moulded coal layer raw material is the 10wt% of moulded coal material quality；
(4) coking treatment will be carried out in the moulded coal raw material push-in coke oven of step (3), controls coking temperature
It is 1050 DEG C to spend, and scorch time is 18 hours, collects raw gas, tar, the mixing of crude benzol overflowed
Thing, while obtaining byproduct coke；Using the isolated raw gas of common process, tar, one is gone forward side by side
Step isolates crude benzol from coal gas, and the amount of the raw gas is 450Nm3/ t dry coals, the amount of the tar
It is 34kg/t dry coals, the amount of the crude benzol is 10kg/t dry coals, and the amount of the coke is 700kg/t
Dry coal, the solids carbon content in the coke is not more than 2%, Jiao not less than 80%, volatile matter content
Particle diameter is the 75% of coke gross mass in the particle gross mass of more than 40mm after charcoal screening, and particle diameter exists
The particle gross mass of more than 25mm is the 90% of coke gross mass.
Embodiment 2
(1) it is below 17wt% by Compostable drying to moisture content, crushing and be pressed into density is
1.2g/cm3Particulate matter, it is standby；
(2) particulate matter after crushing ub-bituminous coal and organic binder bond jointly with step (1) is mixed,
Low-order coal moulded coal layer raw material is formed, it is standby；
Wherein, the G values of ub-bituminous coal are 40, and volatile content is 50%；Organic binder bond is at 850 DEG C
Destructive distillation weightlessness under isolation air conditionses is 40% asphalt, and its softening point is 120 DEG C；At this
In low-order coal moulded coal layer raw material, in mass, the addition of particulate matter is low-order coal moulded coal layer raw material matter
The 35wt% of amount, the addition of organic binder bond is the 5wt% of ub-bituminous coal quality；
(3) 1/3 coking coal crushed is carried out using tamping machine making shaping firm by ramming, forms non-low order coal type
Coal seam, and the low-order coal moulded coal layer raw material of step (2) is added on the non-low-order coal moulded coal layer, continue
Low-order coal moulded coal layer raw material is carried out making shaping firm by ramming using tamping machine, is formed and is located at non-low-order coal moulded coal
Low-order coal moulded coal layer on layer, so as to form final moulded coal raw material；
In mass, the addition of low-order coal moulded coal layer raw material is the 60wt% of moulded coal material quality；
(4) coking treatment will be carried out in the moulded coal raw material push-in coke oven of step (3), controls coking temperature
It is 1025 DEG C to spend, and scorch time is 16 hours, collect overflow raw gas, tar, crude benzol it is mixed
Compound, while obtaining byproduct coke；Using the isolated raw gas of common process, tar, go forward side by side
One step isolates crude benzol from coal gas, and the amount of the raw gas is 480Nm3/ t dry coals, the tar
It is 32kg/t dry coals to measure, and the amount of the crude benzol is 10kg/t dry coals, and the amount of the coke is 690kg/t
Dry coal, the solids carbon content in the coke is not more than 2%, Jiao not less than 80%, volatile matter content
Particle diameter is the 35% of coke gross mass in the particle gross mass of more than 40mm after charcoal screening, and particle diameter exists
The particle gross mass of more than 25mm is the 55% of coke gross mass.
Embodiment 3
(1) it is below 17wt% by Compostable drying to moisture content, crushing and be pressed into density is
1.1g/cm3Particulate matter, it is standby；
(2) particulate matter after crushing lignite and organic binder bond jointly with step (1) is mixed, shape
It is standby into low-order coal moulded coal layer raw material；
Wherein, the G values of lignite are 0, and volatile content is 48%；Organic binder bond is at 850 DEG C
Destructive distillation weightlessness under isolation air conditionses is 42% high temperature asphalt, and its softening point is 125 DEG C,
The fixed carbon content in the high temperature asphalt is 30% in mass, and C/Hratio is 8；In low order
In the raw material of coal type coal seam, in mass, the addition of particulate matter is low-order coal moulded coal layer material quality
30wt%, the addition of organic binder bond is the 22.5wt% of lignite quality；
(3) 1/3 coking coal crushed is carried out using tamping machine making shaping firm by ramming, forms non-low order coal type
Coal seam, and the low-order coal moulded coal layer raw material of step (2) is added on the non-low-order coal moulded coal layer, continue
Low-order coal moulded coal layer raw material is carried out making shaping firm by ramming using tamping machine, is formed and is located at non-low-order coal moulded coal
Low-order coal moulded coal layer on layer, so as to form final moulded coal raw material；
In mass, the addition of low-order coal moulded coal layer raw material is the 40wt% of moulded coal material quality；
(4) coking treatment will be carried out in the moulded coal raw material push-in coke oven of step (3), controls coking temperature
It is 950 DEG C to spend, and scorch time is 20 hours, collects raw gas, tar, the mixing of crude benzol overflowed
Thing, while obtaining byproduct coke；Using the isolated raw gas of common process, tar, one is gone forward side by side
Step isolates crude benzol from coal gas, and the amount of the raw gas is 460Nm3/ t dry coals, the amount of the tar
It is 65kg/t dry coals, the amount of the crude benzol is 13kg/t dry coals, and the amount of the coke is 610kg/t
Dry coal, the solids carbon content in the coke is not more than 3%, Jiao not less than 80%, volatile matter content
Particle diameter is the 30% of coke gross mass in the particle gross mass of more than 40mm after charcoal screening, and particle diameter exists
The particle gross mass of more than 25mm is the 60% of coke gross mass.
Embodiment 4
(1) it is below 17wt% by combustiblerefuse drying to moisture content, crushing and be pressed into density is
1.1g/cm3Particulate matter, it is standby；
(2) particulate matter after crushing lignite and organic binder bond jointly with step (1) is mixed, shape
It is standby into low-order coal moulded coal layer raw material；
Wherein, the G values of lignite are 0, and volatile content is 55%；Organic binder bond is at 850 DEG C
Destructive distillation weightlessness under isolation air conditionses is 47% coal tar pitch, and its softening point is 130 DEG C, with
Fixed carbon content in the quality meter coal tar pitch is 35%, and C/Hratio is 11；In low order coal type
In the raw material of coal seam, in mass, the addition of particulate matter is the 25wt% of low-order coal moulded coal layer material quality,
The addition of organic binder bond is the 15wt% of lignite quality；
(3) 1/3 coking coal crushed is carried out using tamping machine making shaping firm by ramming, forms non-low order coal type
Coal seam, and the low-order coal moulded coal layer raw material of step (2) is added on the non-low-order coal moulded coal layer, continue
Low-order coal moulded coal layer raw material is carried out making shaping firm by ramming using tamping machine, is formed and is located at non-low-order coal moulded coal
Low-order coal moulded coal layer on layer, so as to form final moulded coal raw material；
In mass, the addition of low-order coal moulded coal layer raw material is the 70wt% of moulded coal material quality；
(4) coking treatment will be carried out in the moulded coal raw material push-in coke oven of step (3), controls coking temperature
It is 1000 DEG C to spend, and scorch time is 18 hours, collects raw gas, tar, the mixing of crude benzol overflowed
Thing, while obtaining byproduct coke；Using the isolated raw gas of common process, tar, one is gone forward side by side
Step isolates crude benzol from coal gas, and the amount of the raw gas is 570Nm3/ t dry coals, the amount of the tar
It is 25kg/t dry coals, the amount of the crude benzol is 9kg/t dry coals, the amount of the coke is dry for 630kg/t
Coal, the solids carbon content in the coke is not more than 2%, coke not less than 80%, volatile matter content
Particle diameter is the 30% of coke gross mass in the particle gross mass of more than 40mm after screening, and particle diameter exists
The particle gross mass of more than 25mm is the 50% of coke gross mass.
Obviously, above-described embodiment is only intended to clearly illustrate example, and not to embodiment party
The restriction of formula.For those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms.There is no need and unable to give all of implementation method
With exhaustion.And the obvious change thus extended out or change guarantor still in the invention
Among shield scope.
Claims (10)
1. a kind of coking process of the moulded coal raw material containing low-order coal and granulated garbage, including：
(1) combustiblerefuse and/or Compostable dried, crush and be pressed into particulate matter, it is standby；
(2) low-order coal and organic binder bond are mixed to form mixture, the mixture is after crushed again
Mix to form low-order coal moulded coal layer raw material with the particulate matter of step (1), it is standby；
Wherein, the organic binder bond is weightless less than 50% in 850 DEG C of destructive distillation completely cut off under air conditionses,
The addition of the particulate matter is the 20-50% of the low-order coal moulded coal layer material quality in mass；
(3) one or more in scala media coal, high-order coal or the middle high-order coal crushed are pressurizeed into
Type, forms non-low-order coal moulded coal layer, and add the low of step (2) on the non-low-order coal moulded coal layer
Rank coal type coal seam raw material, continues to be press-formed low-order coal moulded coal layer raw material, and formation is located at
Low-order coal moulded coal layer on the non-low-order coal moulded coal layer, so as to form final moulded coal raw material；
(4) coking treatment will be carried out in the moulded coal raw material push-in coke oven of step (3), controls coking temperature
It is 950-1050 DEG C to spend, scorch time be not less than 16 hours, collect overflow raw gas, tar,
The mixture of crude benzol, while obtaining byproduct coke.
2. coking process according to claim 1, it is characterised in that dried described flammable
The moisture content of rubbish and/or Compostable is not more than 17wt%；The density of the particulate matter is
1.0-1.2g/cm3。
3. coking process according to claim 1 and 2, it is characterised in that in mass, institute
The addition for stating organic binder bond is the 5-40% of the low-order coal quality.
4. the coking process according to claim any one of 1-3, it is characterised in that described organic
Binding agent is asphalitine of the softening point more than 100 DEG C.
5. coking process according to claim 4, the asphalitine is that softening point is not less than 120 DEG C
Coal asphalt or petroleum asphalt.
6. the coking process according to claim 4 or 5, it is characterised in that the asphalitine is
Hard pitch, in mass, more than 25%, C/Hratio is the fixed carbon content of the hard pitch
8-11。
7. the coking process according to claim any one of 1-6, it is characterised in that the low order
The G values of coal are more than 40% less than 50, volatile matter content；
In mass, the quality of the low-order coal moulded coal layer is the 10-70% of the moulded coal material quality.
8. coking process according to claim 7, it is characterised in that the low-order coal moulded coal layer
Quality be the moulded coal material quality 40-60%.
9. the coking process according to claim any one of 1-8, it is characterised in that the particle
The addition of thing is the 20-35% of the low-order coal moulded coal layer quality.
10. the coking process according to claim any one of 1-9, it is characterised in that the coking
Treatment is carried out in tamping coke furnace, and the moulded coal raw material carries out making shaping firm by ramming in tamping machine.
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| CN1465656A (en) * | 2002-07-04 | 2004-01-07 | 首钢总公司 | Waste plastics and coal cocoaking treatment method |
| CN101659891A (en) * | 2009-09-10 | 2010-03-03 | 李晓军 | Non-charring coke and preparation method thereof |
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Application publication date: 20170707 |