CN106635100A - Pulverized coal forming and dry distillation method employing waste as binder - Google Patents
Pulverized coal forming and dry distillation method employing waste as binder Download PDFInfo
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- CN106635100A CN106635100A CN201611153603.0A CN201611153603A CN106635100A CN 106635100 A CN106635100 A CN 106635100A CN 201611153603 A CN201611153603 A CN 201611153603A CN 106635100 A CN106635100 A CN 106635100A
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- coal
- tar
- coke
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- gas
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Classifications
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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
-
- 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
- C10B57/14—Features of low-temperature carbonising processes
Abstract
The invention discloses a pulverized coal forming and dry distillation method employing a waste as a binder. The method comprises the following steps: crushing and sieving coal to obtain pulverized coal; heating water to 80-100 DEG C, mixing and fully stirring heavy coal tar pitch, a tar residue and polyaluminum ferric chloride in sequence, fully stirring, pouring a mixture to dolomite powder when the mixture is softened, heating and stirring the dolomite powder into a sticky paste material to obtain the binder; carrying out cold press molding on the mixture obtained by compounding the prepared binder and the pulverized coal in a forming mould at a pressure of 8-20MPa to obtain briquette coal; carrying out low-temperature pyrolysis on the prepared briquette coal product in a dry distillation furnace at 500-750 DEG C for 2-4 hours to obtain semi-coke, coal tar and a coal gas. According to the method, a feasible way is provided for semi-coke production in short of raw lump coal, the problem that the tar residue of a factory cannot be effectively utilized is solved to the maximum extent; and the coal tar in the tar residue is completely squeezed, the oil yield rate of the briquette coal is improved and refuse reclamation is achieved, so that the utilization value of the pulverized coal is improved.
Description
Technical field
The present invention relates to Coal Chemical Industry produces the technical field of semi-coke, more particularly to a kind of fine coal with discarded object as adhesive
Shaping method for destructive distillation.
Background technology
Semi-coke (semicoke) be with the Jurassic Period of 30～80mm not glue, weak grume coal as raw material, in employing low temperature pyrogenation gained
A kind of high fixed carbon combustible soli-d substance, be clean environment firendly fuel of new generation the characteristics of it has " three high four is low ".However,
Used as the cradle and main producing region of national semi-coke industry, through years development, it is maximum that although semi-coke industry has become Yulin City
Chemical Industry and it is important where pillar of the economy, but with the continuous improvement of mechanization degree, mining way from big gun adopt to
The transformation of fully mechanized mining, semi-coke industry raw material lump coal wretched insufficiency (being reduced to less than 10% by original 30%).And in fine coal destructive distillation
Aspect, current Yulin city is just in the outer heat for having a Yu Shenjinhua Energy Science Co., Ltd and Chang An University's joint development of pilot scale
Several experiment and demonstration projects such as formula rotary furnace, the external heat type rotary furnace of Tianyuan chemical company of Shenmu County exploitation, but in pulverized coal pyrolysis
The gas solid separation of generally existing, coke powder bonding, apparatus for rotating not yet find suitable solution the problems such as sealing.Additionally, former
Coal produce semi-coke, coal gas and coal tar during middle low temperature distillation and coal tar as product, its yield is relatively low (7～8%),
Wherein semi-coke can obtain dolomite dust, coal tar as the raw material of the industries such as downstream metallurgy calcium carbide, coal gas for dolime
Light tar, heavy coal tar and tar slag are obtained after fractionation, heavy coal tar obtains light tar Jing after flash distillation
With tar heavy oil pitch.Fine coal is low due to value, is sent to produce flyash after power plants generating electricity.Produce in said process
The waste residue of tar slag, heavy coal tar asphalt and flyash etc. if it directly abandoned can serious environment pollution, tar slag
With in heavy coal tar contain a large amount of carcinogenic substances, polluted-water and soil, seriously threaten human health；Flyash is due to its particle
It is small, atmosphere pollution in air is exposed to, it is the arch-criminal of haze weather.
The content of the invention
In order to solve the above problems, the present invention provides a kind of coal powder formation method for destructive distillation with discarded object as adhesive, profit
The discarded object obtained after low temperature pyrogenation in coal makes adhesive and compounds with fine coal, designs one kind and has combustion cleaning, sends out
Heat is big, low ash, high oil recovery, type semi-coke production technology the features such as intensity is high.
To achieve these goals, the present invention adopts the following technical scheme that realization：
A kind of coal powder formation method for destructive distillation with discarded object as adhesive, comprises the following steps：
(1) coal is obtained into fine coal through broken, screening；
(2) water is raised to into 80～100 DEG C, in order mixes heavy coal tar asphalt, tar slag, PAFC simultaneously
It is sufficiently stirred for, pours dolomite dust heating stirring into again when mixture softens and make thick-pasty material, obtains adhesive；
(3) adhesive obtained by step (2) is compounded and is sufficiently mixed with the fine coal in step (1) and mixed
Thing；
(4) mixture of step (3) is obtained into moulded coal in mould with 8～20MPa pressure cold moudlings；
(5) 2～4h of low temperature pyrogenation during the briquette prod obtained by step (4) is carried out in 500～750 DEG C in gas retort
After obtain type semi-coke, coal tar, coal gas；
The mass percent of each raw material is as follows：The fine coal 5～20% of less than 1 millimeter of 50～65%, 1～3 millimeter of fine coal,
Water 5-10%, tar slag 5%～15%, heavy coal tar asphalt 5%～10%, dolomite dust 1%～3%, aluminium polychloride
Iron 0.5%～2.0%.
Preferably：Tar slag, heavy coal tar asphalt in the step (2) is produced for coal tar after fractionation.It is excellent
Point：So that discarded object is comprehensively utilized and improves the intensity of moulded coal.
Preferably：Dolomite dust in the step (2) is produced by coal gas dolime.Advantage：Main component is
CaMg[CO3]2, belong to the carbonate mineral of trigonal system, allocating into can improve the stability of moulded coal in fine coal, high-strength so as to obtain
The type semi-coke of degree.
Preferably：Pressure in the step (4) is 10-20MPa.
Preferably：Step (1) coal is dross coal or weakly caking coal.
Preferably：PAFC in the step (2) is obtained for flyash Jing acidleach alkali solubles.Advantage：Allocate powder into
Catalytic action is played in coal, so as to mention the oil yield of moulded coal.
Preferably：Gas retort in the step (5) is vertical type gas retort.
Preferably：1250～the 2568N/ball of intensity of moulded coal in the step (4).
Preferably：1000～the 1800N/ball of intensity of the medium-sized semi-coke product of the step (5).
The second object of the present invention is to provide a kind of moulded coal, type semi-coke, coal tar prepared by any of the above-described method
Or coal gas.
Beneficial effects of the present invention are：
From circulation industrial chain, coal gas, coal tar and the fine coal fire produced during middle low temperature distillation is given full play to
The downstream industry advantages such as power generating, the isolated heavy coal tar of the dolomite dust produced with coal gas dolime, coal tar
A large amount of solid waste such as oil asphalt, tar slag are main adhesive bond fine coal, then are equipped with what is produced during thermal power generation
Flyash is the PAFC of raw material production, is molded destructive distillation, to by being catalyzed pyrolysis, improving the fuel-displaced of retort process
Rate, enables fine coal to produce in the vertical type gas retort of original semi-coke industry, expands industrial chain, realizes that economic green is sustainable
Development.
Containing substantial amounts of coal tar (25～35%) and with good viscosity in tar slag and heavy coal tar；Flyash
In contain a large amount of sial ferro elements, pass it through that PAFC inorganic polymer is obtained after chemical treatment (acidleach alkali soluble) is poly-
Compound.Therefore, tar slag, heavy coal tar, flyash and a small amount of dolomite dust are filled in a certain amount of running water
Divide and obtain making adhesive by oneself after mixing, allocated into the block moulded coal that high intensity is obtained in fine coal Jing after cold moudling, from
And powder coal is realized to the conversion of lump coal, the production for semi-coke provides raw material and technical feasibility, realizes following for resource
Ring using and the waste residue such as tar slag, heavy coal tar asphalt and flyash recycling.Therefore huge Jing is brought for enterprise
Ji benefit, realizes economic Green Sustainable, and can expand industrial chain, and the development to coal in China industry has important
Meaning.
The present invention prepares moulded coal and moulded coal with dross coal or weakly caking coal through allocating the homemade adhesive of various discarded objects into
Generation type semi-coke, coal gas and coal tar during middle low temperature distillation, wherein semi-coke can be used as the originals of the industries such as downstream metallurgy calcium carbide
Material, coal gas obtains dolomite dust for dolime, coal tar obtain after fractionation light tar, heavy coal tar and
Tar slag, heavy coal tar obtains three kinds of light tars and tar heavy oil pitch Jing after flash distillation, and fine coal value is relatively low, by it
It is transported in after power plants generating electricity and obtains flyash, a large amount of sial ferro elements are contained in flyash, passes it through and obtained after acidleach alkali soluble
PAFC, by heavy tar pitch obtained above, tar slag, PAFC and dolomite dust and running water but
Altogether hot mixing obtains making by oneself adhesive and allocates in fine coal and make moulded coal Jing after cold moudling specific ratio, moulded coal pass through in low temperature
Again type semi-coke, coal tar oil and gas can be obtained after destructive distillation, so as to realize recycling and waste tar slag and flyash for resource
Recycling.The method lacks raw material lump coal and provides practical way for semi-coke production, factory is solved to the full extent burnt
The dregs of fat cannot be utilized effectively, and the coal tar in tar slag is eaten into the dry oil yield for squeezing and improving moulded coal only, realize that waste is sharp again
With so as to improve the value of fine coal.This process has process is simple, with low cost, and refuse reclamation meets green circulatory
Economic the characteristics of.
Description of the drawings
Fig. 1 is the process chart of embodiment 1.
Specific embodiment
In order to be better understood by technical scheme, with reference to embodiment, the invention will be further described.
The raw materials used fine coal produced by the coloured Yulin coal industry Co., Ltd Hangzhoupro Lai Wan collieries in Shaanxi and Shenmu County in embodiment
The tar slag that the semi-coke device production of four seas Coal Chemical Industry Co., Ltd is obtained.The Industrial Analysis of feed coal is as shown in table 1.
Table 1：
In table：Mt is total moisture, and Aad is air-dried basis ash content, and FCad is air-dried basis fixed carbon, and Vad is air
It is dried base volatile matter.
Embodiment 1：
As shown in figure 1, a kind of coal powder formation method for destructive distillation with discarded object as adhesive, comprises the following steps：
(1) coal is obtained into fine coal through broken, screening；
(2) temperature of water is raised to into 80 DEG C, at this temperature, in order by heavy coal tar asphalt, tar slag, polymerization chlorine
Change ferro-aluminum to mix and be sufficiently stirred for, pour dolomite dust heating stirring into again when mixture softens and make thick-pasty material, obtain
To adhesive；
(3) adhesive obtained by step (2) is compounded and is sufficiently mixed with the fine coal in step (1) and mixed
Thing；
(4) mixture of step (3) is obtained into moulded coal in mould with 10MPa pressure cold moudlings；
(5) type is obtained after low temperature pyrogenation 4h during the briquette prod obtained by step (4) is carried out in 500 DEG C in gas retort
Semi-coke, coal tar, coal gas.
According to percentage by weight, by 5% tar slag, 5% heavy coal tar asphalt, 1% dolomite dust, 0.5%
PAFC, less than 1 millimeter of fine coal 65%, 1～3 millimeter of fine coal 18.5%, 5% water.Moulded coal and moulded coal
The type semi-coke that obtains after destructive distillation, coal tar, coal gas performance evaluation are as shown in table 2.
Table 2：
In table：Qgr, d are Dry basis perch caloric value.
Embodiment 2：
A kind of coal powder formation method for destructive distillation with discarded object as adhesive, comprises the following steps：
(1) coal is obtained into fine coal through broken, screening；
(2) temperature of water is raised to into 100 DEG C, at this temperature, in order by heavy coal tar asphalt, tar slag, polymerization
Aluminium chloride ferrum mixes and is sufficiently stirred for, and pours dolomite dust heating stirring into again when mixture softens and makes thick-pasty material,
Obtain adhesive；
(3) adhesive obtained by step (2) is compounded and is sufficiently mixed with the fine coal in step (1) and mixed
Thing；
(4) mixture of step (3) is obtained into moulded coal in mould with 18MPa pressure cold moudlings；
(5) type is obtained after low temperature pyrogenation 3h during the briquette prod obtained by step (4) is carried out in 600 DEG C in gas retort
Semi-coke, coal tar, coal gas.
Chlorine adding ratio is as shown in table 3.
Table 3：
The type semi-coke that obtains after moulded coal and moulded coal destructive distillation, coal tar, coal gas performance evaluation are as shown in table 4.
Table 4：
Embodiment 3：
A kind of coal powder formation method for destructive distillation with discarded object as adhesive, comprises the following steps：
(1) coal is obtained into fine coal through broken, screening；
(2) temperature of water is raised to into 90 DEG C, at this temperature, in order by heavy coal tar asphalt, tar slag, polymerization chlorine
Change ferro-aluminum to mix and be sufficiently stirred for, pour dolomite dust heating stirring into again when mixture softens and make thick-pasty material, obtain
To adhesive；
(3) adhesive obtained by step (2) is compounded and is sufficiently mixed with the fine coal in step (1) and mixed
Thing；
(4) mixture of step (3) is obtained into moulded coal in mould with 20MPa pressure cold moudlings；
(5) obtain after low temperature pyrogenation 24h during the briquette prod obtained by step (4) is carried out in 750 DEG C in gas retort
Type semi-coke, coal tar, coal gas.
Chlorine adding ratio is as shown in table 5.
Table 5：
The type semi-coke that obtains after moulded coal and moulded coal destructive distillation, coal tar, coal gas performance evaluation are as shown in table 6.
Table 6
Embodiment 4：
A kind of coal powder formation method for destructive distillation with discarded object as adhesive, comprises the following steps：
(1) coal is obtained into fine coal through broken, screening；
(2) temperature of water is raised to into 80～100 DEG C, at this temperature, in order by heavy coal tar asphalt, tar slag,
PAFC mixes and is sufficiently stirred for, and pours dolomite dust heating stirring into again when mixture softens and makes viscous pastes
Matter, obtains adhesive；
(3) adhesive obtained by step (2) is compounded and is sufficiently mixed with the fine coal in step (1) and mixed
Thing；
(4) mixture of step (3) is obtained into moulded coal in mould with 15MPa pressure cold moudlings；
(5) type is obtained after low temperature pyrogenation 4h during the briquette prod obtained by step (4) is carried out in 650 DEG C in gas retort
Semi-coke, coal tar, coal gas.
Chlorine adding ratio is as shown in table 7.
Table 7：
The type semi-coke that obtains after moulded coal and moulded coal destructive distillation, coal tar, coal gas performance evaluation are as shown in table 8.
Table 8：
In embodiment 4, because the consumption of adhesive each component is excessive, cause type semi-coke compression strength not less than 600N/
Ball, ash content, volatile matter are larger, it is impossible to reach semi-coke standard.
Although be described to technical scheme formula, not to the scope of the present invention in conjunction with the embodiments
Limit, one of ordinary skill in the art should be understood that on the basis of technical scheme, those skilled in the art need not
The various modifications made by paying creative work or deformation are still within protection scope of the present invention.
Claims (10)
1. a kind of coal powder formation method for destructive distillation with discarded object as adhesive, is characterized in that：Comprise the following steps：
(1) coal is obtained into fine coal through broken, screening；
(2) temperature of water is raised to into 80～100 DEG C, at this temperature, in order by heavy coal tar asphalt, tar slag, polymerization
Aluminium chloride ferrum mixes and is sufficiently stirred for, and pours dolomite dust heating stirring into again when mixture softens and makes thick-pasty material,
Obtain adhesive；
(3) fine coal in the adhesive obtained by step (2) and step (1) is compounded and is sufficiently mixed and obtained mixture；
(4) mixture of step (3) is obtained into moulded coal in mould with 8～20MPa pressure cold moudlings；
(5) obtain after 2～4h of low temperature pyrogenation during the briquette prod obtained by step (4) is carried out in 500～750 DEG C in gas retort
To type semi-coke, coal tar, coal gas；
The mass percent of each raw material is as follows：The fine coal 5～20% of less than 1 millimeter of 50～65%, 1～3 millimeter of fine coal, water 5-
10%, tar slag 5%～15%, heavy coal tar asphalt 5%～10%, dolomite dust 1%～3%, PAFC
0.5%～2.0%.
2. the method for claim 1, is characterized in that：Step (1) coal is dross coal or weakly caking coal.
3. the method for claim 1, is characterized in that：Tar slag, heavy coal tar asphalt in the step (2) is coal
Tar is produced after fractionation.
4. the method for claim 1, is characterized in that：Dolomite dust in the step (2) is by coal gas dolime
Produce.
5. the method for claim 1, is characterized in that：PAFC in the step (2) is that flyash Jing is sour
Caustic dip is molten to be obtained.
6. the method for claim 1, is characterized in that：Pressure in the step (4) is 10-20MPa.
7. the method for claim 1, is characterized in that：1250～the 2568N/ball of intensity of moulded coal in the step (4).
8. the method for claim 1, is characterized in that：Gas retort in the step (5) is vertical type gas retort.
9. the method for claim 1, is characterized in that：The intensity 1000 of the medium-sized semi-coke product of the step (5)～
1800N/ball。
10. the arbitrary described method of claim 1-9 is prepared moulded coal, type semi-coke, coal tar or coal gas.
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| CN201611153603.0A CN106635100B (en) | 2016-12-15 | 2016-12-15 | It is a kind of using waste as the coal powder formation method for destructive distillation of adhesive |
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| CN201611153603.0A CN106635100B (en) | 2016-12-15 | 2016-12-15 | It is a kind of using waste as the coal powder formation method for destructive distillation of adhesive |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109607529A (en) * | 2018-11-29 | 2019-04-12 | 北京清新环境技术股份有限公司 | A kind of essence/distillation waste prepares molding carbon-based material and preparation method thereof |
| CN113150851A (en) * | 2020-12-11 | 2021-07-23 | 农业农村部规划设计研究院 | Application of biomass tar as binder in formed carbon, formed carbon and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1415057A (en) * | 1999-09-23 | 2003-04-30 | 克诺尔-布里姆斯轨道车辆系统有限公司 | Brake actuator |
| CN104650937A (en) * | 2015-01-28 | 2015-05-27 | 西安建筑科技大学 | Method for preparing formed coke from low-metamorphic pulverized coal, heavy oil and tar residues as raw materials |
| US20150344800A1 (en) * | 2012-12-26 | 2015-12-03 | Posco | Coal bruquette manufacturing method and coal bruquette manufacturing apparatus |
| CN105295973A (en) * | 2014-05-30 | 2016-02-03 | 宝山钢铁股份有限公司 | Method for producing coke by using coal fly ash to replace part of coal |
-
2016
- 2016-12-15 CN CN201611153603.0A patent/CN106635100B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1415057A (en) * | 1999-09-23 | 2003-04-30 | 克诺尔-布里姆斯轨道车辆系统有限公司 | Brake actuator |
| US20150344800A1 (en) * | 2012-12-26 | 2015-12-03 | Posco | Coal bruquette manufacturing method and coal bruquette manufacturing apparatus |
| CN105295973A (en) * | 2014-05-30 | 2016-02-03 | 宝山钢铁股份有限公司 | Method for producing coke by using coal fly ash to replace part of coal |
| CN104650937A (en) * | 2015-01-28 | 2015-05-27 | 西安建筑科技大学 | Method for preparing formed coke from low-metamorphic pulverized coal, heavy oil and tar residues as raw materials |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109607529A (en) * | 2018-11-29 | 2019-04-12 | 北京清新环境技术股份有限公司 | A kind of essence/distillation waste prepares molding carbon-based material and preparation method thereof |
| CN109607529B (en) * | 2018-11-29 | 2023-04-07 | 北京清新环境技术股份有限公司 | Molded carbon-based material prepared from refined/distilled waste and preparation method thereof |
| CN113150851A (en) * | 2020-12-11 | 2021-07-23 | 农业农村部规划设计研究院 | Application of biomass tar as binder in formed carbon, formed carbon and preparation method thereof |
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