CN107236562A - A kind of technique that coking is carried out to the molding mass containing low-order coal and rubbish - Google Patents
A kind of technique that coking is carried out to the molding mass containing low-order coal and rubbish Download PDFInfo
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- CN107236562A CN107236562A CN201610186611.9A CN201610186611A CN107236562A CN 107236562 A CN107236562 A CN 107236562A CN 201610186611 A CN201610186611 A CN 201610186611A CN 107236562 A CN107236562 A CN 107236562A
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- order coal
- low
- coking
- rubbish
- coal
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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
- 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 technique for carrying out coking to the molding mass containing low-order coal and rubbish, the technique by categorized consumer waste by collecting organic components, mixed after the organic components are dried with low-order coal, the molding mass containing low-order coal and rubbish just can be made in repressed processing again, so on the one hand low-order coal and garbage raw material can be enable to be pushed into tamping coke furnace and carry out high-temperature retorting, on the other hand the solid product after low-order coal and rubbish destructive distillation is also caused to be easy to release from tamping coke furnace, so as to obtain the raw gas of appreciable amount, tar, carbon residue.It can be seen that, technique of the invention can not only reduce oil gas and the cost of material of coke product, can also effectively realize the recycling of rubbish so that the existing considerable economic benefit of the present invention has certain social benefit again.
Description
Technical field
The present invention relates to the burnt production technical field of gasification, more particularly to it is a kind of using tamping coke furnace to containing
The technique that the molding mass of low-order coal and rubbish carries out coking.
Background technology
Since 18th century, coal turns 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 due to product of the low-order coal as incoalation initial stage,
With phosphorus content is low, moisture is high, it is easy efflorescence, easy spontaneous combustion, high fugitive constituent, 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, upgrading conversion and the comprehensive utilization of low-order coal already turn into current China's energy research and 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, low-order coal is in forming process, and the physical action such as high pressure or shearing is to its gel structure and hole
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 that the dust for solving drying low-order coal is big, easily absorb water again, easily
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 is applied thus limit the exploitation of low-order coal
Utilize.
There is the garbage compost work carried out at present in China 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 the external sorting rubbish stable for component
Fuel manufacturing technology can not be applied to the high humidity composting of China, therefore, should be directed to the rubbish of China
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 is the maximization equipment used in the coking process of coal, and its floor space is wide, investment
Capital cost is big.Coking of coal be by raw material of coal through high-temperature retorting produce coke, while obtain coal gas,
Coal tar and a kind of coal conversion process for reclaiming other chemical products, its coke product are mainly metallurgical coke
Or chemical industry is burnt.Due to industrially very high to the quality requirements of this kind of coke 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. were a large amount of in recent years needs the decline of metallurgical coke or the burnt industry of chemical industry, causes coke to produce
The demands of product is reduced, price declines, so as to force coke-oven plant drastically to reduce coke output, thus band
Come consequence be that tamping coke furnace is 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 maintain the operation of coke oven in minimum level, 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 summary, how tamping coke furnace is applied to low-order coal and life under current situation
The recycling field of rubbish is puzzlement art technology so that above mentioned problem is all readily solved
The technical barrier of personnel.
The content of the invention
Present invention solves the technical problem that being to overcome prior art can not realize low-order coal and the money of rubbish
The problem of defect and low existing tamping coke furnace availability that source is utilized, and then provide a kind of using smashing
Gu the technique that coke oven carries out coking to the molding mass containing low-order coal and rubbish.
Therefore, the present invention realizes that the technical scheme of above-mentioned purpose is：
A kind of technique that coking is carried out to the molding mass containing low-order coal and rubbish, comprises the following steps：
(1) house refuse is classified, collects organic components, the organic components include wood
One or more in product, bamboo product, Cotton and Linen, paper products, rubbish from cooking；
(2) under 110-120 DEG C of oxygen free condition to the organic components be dried processing until
Water content is reduced to below 20wt%；
(3) the dried organic components and low-order coal are mixed to form mixture, used
5-40MPa pressure is compressing by the mixture, that is, the molding mass containing low-order coal and rubbish is made；
(4) to the molding mass carry out coking processing, control charge of coke center temperature be 950-1050 DEG C,
Scorch time is not less than 16 hours, the raw gas overflowed, tar is collected, while obtaining carbon residue.
The water content of the dried organic components is 16~20wt%.
The water content of the low-order coal is not more than 20wt%.
In the mixture, the mass ratio of the organic components and the low-order coal is (4-7)：
(3-6)。
Organic binder bond is also included in the mixture, the organic binder bond completely cuts off air at 850 DEG C
Under conditions of destructive distillation weightlessness be less than 50%.
The organic binder bond is the coal asphalt or petroleum asphalt that softening point is not less than 120 DEG C.
The organic binder bond and the mass ratio (1-3) of the low-order coal：(9-7).
Compressing condition is in step (3)：The pressurize 0.5-2min under 25-35MPa.
The coking process is carried out in tamping coke furnace.
The present invention carries out compression process using hydraulic test to mixture, according to the shape of used mould
The difference of shape and size, can be made the molding mass with arbitrary shape and size.Preferably, this hair
The shape and size of bright obtained garbage-molding material and the carbonization chamber of tamping coke furnace match.
The above-mentioned technical proposal of the present invention has the following advantages that：
1st, the technique that coking is carried out to the molding mass containing low-order coal and rubbish that the present invention is provided, passes through
By categorized consumer waste to collect organic components, the organic components are dried with rear and low-order coal
The molding mass containing low-order coal and rubbish just can be made in mixing, then repressed processing, so on the one hand can
Low-order coal and garbage raw material is pushed into tamping coke furnace and carry out high-temperature retorting, on the other hand also cause
Solid product after low-order coal and rubbish destructive distillation is not pulverized easily, it is easy to the coke pushing of tamping coke furnace, so that
To the raw gas, tar, carbon residue of appreciable amount.It can be seen that, technique of the invention can not only reduce oil gas
With the cost of material of coke product, the recycling of rubbish can be also effectively realized so that the present invention was both
There is considerable economic benefit to have certain social benefit again.Thus, technique of the invention is not only solved
Prior art in the absence of large-scale industrialization equipment because making low-order coal and spam application are limited to ask
Topic, the problem of also effectively overcoming low existing tamping coke furnace availability, coking industry production capacity surplus.
What the 2nd, the present invention was provided carries out coking process to the molding mass containing low-order coal and rubbish, preferably will
The re-compacted shaping after being mixed with low-order coal and binding agent of dried organic components, it is further preferably viscous
It is the organic binder bond that destructive distillation weightlessness is less than 50% under conditions of 850 DEG C of isolation air to tie agent so that viscous
Active ingredient in knot agent can promote the drop of high molecular polymer at high temperature in low-order coal and rubbish
Solution, so as to be favorably improved the oil and gas production of low-order coal and garbage raw material, makes oil gas total amount increase production 10%
More than.And in forming process, certain pressure effect promotes binding agent to glue rubbish with low-order coal
Close so that the liquid that low-order coal and garbage raw material are produced during high-temperature retorting can be penetrated into bonding
In agent, the quality for the coke that low-order coal and rubbish are produced so is favorably improved.
Embodiment
Technical scheme will be clearly and completely described below, it is clear that described
Embodiment is a part of embodiment of the present 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.In addition, 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 embodiment.
Low-order coal composition in molding mass produced by the present invention is applied to all low-order coal coal or it is mixed
Compound, for purposes of illustration only, the low-order coal in following embodiments is by taking ub-bituminous coal or lignite as an example.Following
In embodiment, wt% represents weight/mass percentage composition, quality=((quality+rubbish of low-order coal of molding mass
Quality) × 80%+ binding agents quality), " kg/t molding mass " refers to the product that molding mass per ton is obtained
Kilogram number, " Nm3/ t molding mass " refer to the raw gas that molding mass per ton is obtained volume be converted into 0 DEG C,
The cubic meter number of 1 normal atmosphere pressure.
Embodiment 1
The technique that coking is carried out to the molding mass containing low-order coal and rubbish described in the present embodiment, including
Following steps：
(1) house refuse is classified, collect woodwork, bamboo product, Cotton and Linen, paper products,
The organic components such as rubbish from cooking；
(2) processing is dried to the organic components until aqueous under 110 DEG C of oxygen free condition
Amount is reduced to 20wt%；
(3) by the dried organic components and water content for 20wt% ub-bituminous coal in mass ratio
4:6 are mixed to form mixture, carry out compression process to the mixture using 40MPa pressure, protect
The molding mass containing low-order coal and rubbish is shaped to after pressure 1min；
(4) molding mass is pushed into tamping coke furnace and carries out coking processing, control the coking temperature to be
1050 DEG C, scorch time is 16 hours, the raw gas overflowed, tar is collected, while obtaining coke.
The amount for the raw gas that the present embodiment is obtained is 765Nm3/ t molding mass, the amount of tar for 10kg/t into
Moulding mixture, the amount of coke is 380kg/t molding mass, and in mass, the solids carbon content wherein in coke is not
It is not more than 4% less than 60%, volatile matter content, of the particle diameter in more than 40mm after coke screening
Grain gross mass is the 25% of coke gross mass, and particle diameter is coke in more than 25mm particle gross mass
The 40% of gross mass.
Embodiment 2
The technique that coking is carried out to the molding mass containing low-order coal and rubbish described in the present embodiment, including
Following steps：
(1) house refuse is classified, collect woodwork, bamboo product, Cotton and Linen, paper products,
The organic components such as rubbish from cooking；
(2) processing is dried to the organic components until aqueous under 120 DEG C of oxygen free condition
Amount is reduced to 16wt%；
(3) after the temperature for the organic components that step (2) is obtained is reduced to 45 DEG C, after cooling
The organic components and water content be 15wt% lignite in mass ratio 5:5 are mixed to form mixture,
The mixture is carried out after compression process, pressurize 0.5min being to be shaped to contain using 25MPa pressure
There is the molding mass of low-order coal and rubbish；
(4) molding mass is pushed into tamping coke furnace and carries out coking processing, control the coking temperature to be
950 DEG C, scorch time is 18 hours, the raw gas overflowed, tar is collected, while obtaining coke.
The amount for the raw gas that the present embodiment is obtained is 680Nm3/ t molding mass, the amount of tar for 60kg/t into
Moulding mixture, the amount of coke is 380kg/t molding mass, and in mass, the solids carbon content wherein in coke is not
It is not more than 5% less than 60%, volatile matter content, of the particle diameter in more than 40mm after coke screening
Grain gross mass is the 20% of coke gross mass, and particle diameter is coke in more than 25mm particle gross mass
The 40% of gross mass.
Embodiment 3
The technique that coking is carried out to the molding mass containing low-order coal and rubbish described in the present embodiment, including
Following steps：
(1) house refuse is classified, collect woodwork, bamboo product, Cotton and Linen, paper products,
The organic components such as rubbish from cooking；
(2) processing is dried to the organic components until aqueous under 115 DEG C of oxygen free condition
Amount is reduced to 18wt%；
(3) after the temperature for the organic components that step (2) is obtained is reduced to 55 DEG C, after cooling
The organic components and ub-bituminous coal, binding agent be mixed to form mixture, using 30MPa pressure
The mixture is carried out to be shaped to garbage-molding material after compression process, pressurize 2min；
Wherein, the water content of the ub-bituminous coal is 18wt%, the organic components and the ub-bituminous coal
Mass ratio be 7:3, the mass ratio 1 of the binding agent and the ub-bituminous coal：9, the binding agent be
Destructive distillation weightlessness is less than 50% organic binder bond under conditions of 850 DEG C of isolation air, in the present embodiment institute
It is preferably the asphalt that softening point is 125 DEG C to state organic binder bond；
(4) molding mass is pushed into tamping coke furnace and carries out coking processing, control the coking temperature to be
1000 DEG C, scorch time is 20 hours, the raw gas overflowed, tar is collected, while obtaining coke.
The amount for the raw gas that the present embodiment is obtained is 770Nm3/ t molding mass, the amount of tar for 10kg/t into
Moulding mixture, the amount of coke is 375kg/t molding mass, and in mass, the solids carbon content wherein in coke is not
It is not more than 4% less than 50%, volatile matter content, of the particle diameter in more than 40mm after coke screening
Grain gross mass is the 30% of coke gross mass, and particle diameter is coke in more than 25mm particle gross mass
The 50% of gross mass.
Embodiment 4
The technique that coking is carried out to the molding mass containing low-order coal and rubbish described in the present embodiment, including
Following steps：
(1) house refuse is classified, collect woodwork, bamboo product, Cotton and Linen, paper products,
The organic components such as rubbish from cooking；
(2) processing is dried to the organic components until aqueous under 120 DEG C of oxygen free condition
Amount is reduced to 19wt%；
(3) after the temperature for the organic components that step (2) is obtained is reduced to 50 DEG C, after cooling
The organic components and lignite, binding agent be mixed to form mixture, using 35MPa pressure pair
The mixture carries out being shaped to garbage-molding material after compression process, pressurize 1.5min；
Wherein, the water content of the lignite is 17wt%, the organic components and the matter of the lignite
Amount is than being 6:4, the mass ratio 3 of the binding agent and the lignite:7, the binding agent is at 850 DEG C
Completely cut off organic binder bond of the destructive distillation weightlessness less than 50% under conditions of air, it is described in the present embodiment organic
Binding agent is preferably the coal tar pitch that softening point is 120 DEG C；
(4) molding mass is pushed into tamping coke furnace and carries out coking processing, control the coking temperature to be
950 DEG C, scorch time is 18 hours, the raw gas overflowed, tar is collected, while obtaining coke.
The amount for the raw gas that the present embodiment is obtained is 650Nm3/ t molding mass, the amount of tar for 72kg/t into
Moulding mixture, the amount of coke is 380kg/t molding mass, and in mass, the solids carbon content wherein in coke is not
It is not more than 5% less than 50%, volatile matter content, of the particle diameter in more than 40mm after coke screening
Grain gross mass is the 40% of coke gross mass, and particle diameter is coke in more than 25mm particle gross mass
The 60% of 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 embodiments
With exhaustion.And the obvious changes or variations thus extended out is still in the guarantor of the invention
Protect among scope.
Claims (9)
1. a kind of technique that coking is carried out to the molding mass containing low-order coal and rubbish, comprises the following steps：
(1) house refuse is classified, collects organic components, the organic components include wood
One or more in product, bamboo product, Cotton and Linen, paper products, rubbish from cooking；
(2) under 110-120 DEG C of oxygen free condition to the organic components be dried processing until
Water content is reduced to below 20wt%；
(3) the dried organic components and low-order coal are mixed to form mixture, used
5-40MPa pressure is compressing by the mixture, that is, the molding mass containing low-order coal and rubbish is made；
(4) to the molding mass carry out coking processing, control charge of coke center temperature be 950-1050 DEG C,
Scorch time is not less than 16 hours, the raw gas overflowed, tar is collected, while obtaining coke.
2. coking process according to claim 1, it is characterised in that the dried organic matter
The water content of composition is 16~20wt%.
3. coking process according to claim 1 or 2, it is characterised in that the low-order coal contains
Water is not more than 20wt%.
4. the coking process according to claim any one of 1-3, it is characterised in that in the mixing
In thing, the mass ratio of the organic components and the low-order coal is (4-7)：(3-6).
5. the coking process according to claim any one of 1-4, it is characterised in that in the mixing
Organic binder bond is also included in thing, destructive distillation is lost under conditions of the organic binder bond completely cuts off air at 850 DEG C
It is less than 50% again.
6. coking process according to claim 5, it is characterised in that the organic binder bond is
Softening point is not less than 120 DEG C of coal asphalt or petroleum asphalt.
7. the coking process according to claim 5 or 6, it is characterised in that the organic binder bond
With the mass ratio (1-3) of the low-order coal：(9-7).
8. the coking process according to claim any one of 1-7, it is characterised in that step (3)
It is middle compacting coking condition be：The pressurize 0.5-2min under 25-35MPa.
9. the coking process according to claim any one of 1-8, it is characterised in that the coking work
Skill is carried out in tamping coke furnace.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610186611.9A CN107236562A (en) | 2016-03-29 | 2016-03-29 | A kind of technique that coking is carried out to the molding mass containing low-order coal and rubbish |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610186611.9A CN107236562A (en) | 2016-03-29 | 2016-03-29 | A kind of technique that coking is carried out to the molding mass containing low-order coal and rubbish |
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ID=59983326
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|---|---|---|---|---|
| US4886000A (en) * | 1982-10-09 | 1989-12-12 | Heinz Holter | Method of treating waste |
| CN1309166A (en) * | 2001-01-11 | 2001-08-22 | 昆明理工大学 | Process for preparing composite biomass briquettes |
| CN1465655A (en) * | 2002-07-04 | 2004-01-07 | 首钢总公司 | High temp. dry distillation treatment method for urban domestic refuse |
| CN105219445A (en) * | 2015-09-21 | 2016-01-06 | 北京神雾环境能源科技集团股份有限公司 | The method of process domestic refuse |
| CN105400534A (en) * | 2014-09-16 | 2016-03-16 | 北京三聚环保新材料股份有限公司 | Coking process raw materials |
-
2016
- 2016-03-29 CN CN201610186611.9A patent/CN107236562A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4886000A (en) * | 1982-10-09 | 1989-12-12 | Heinz Holter | Method of treating waste |
| CN1309166A (en) * | 2001-01-11 | 2001-08-22 | 昆明理工大学 | Process for preparing composite biomass briquettes |
| CN1465655A (en) * | 2002-07-04 | 2004-01-07 | 首钢总公司 | High temp. dry distillation treatment method for urban domestic refuse |
| CN105400534A (en) * | 2014-09-16 | 2016-03-16 | 北京三聚环保新材料股份有限公司 | Coking process raw materials |
| CN105219445A (en) * | 2015-09-21 | 2016-01-06 | 北京神雾环境能源科技集团股份有限公司 | The method of process domestic refuse |
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