CN104449778B - A kind of method that integrated use coal petrography index carries out the exploitation of coal source - Google Patents
A kind of method that integrated use coal petrography index carries out the exploitation of coal source Download PDFInfo
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- 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
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Abstract
The present invention relates to a kind of method that integrated use coal petrography index carries out the exploitation of coal source, it includes: I carries out coal petrography analysis to new coal, and during reflectivity standards deviation ＜ 0.10, coal is judged to single coal；The coal index analysis of II pair of this coal, ash content, volatile matter, sulphur content, adhesive index value, thickness of colloidal matter layer Y value, with coal comparison；III with Experiment Coke Oven to new coal coking performance evaluation, and compare with the coal intending substituting, Indexes on Coke Strength has M40, M10 and CRI, CSR.IV substitutes coal with new coal in 4% 18% ratios, and two Coal Blending Schemes Experiment Coke Ovens are tested, and Indexes on Coke Strength is M40, M10 and CRI, CSR.V pair of new coal is on probation on industrial 7.63m coke oven, investigates Indexes on Coke Strength M40, M10 and CRI, CSR.The present invention partly or entirely substitutes with coal resource, widens coal resource Application Range.
Description
Technical field
The present invention relates to a kind of method that integrated use coal petrography index carries out the exploitation of coal source.
Background technology
Constantly consuming and reducing along with high-quality caking coal resource, develops new coal resource, existing resource is carried out part
Or replacing whole is increasingly becoming an important process of coal chemical enterprise.Along with the diversification of coal resource purchase channel, ore deposit point is many, coal
Matter is miscellaneous, and it is more and more frequent that the situation fluctuating big occurs, traditional Industrial Analysis index has been difficult to meet the performance to coal resource
Carry out the requirement of thoroughly evaluating.Coal petrography analysis, as obtaining wideling popularize the technological means of application in the last few years, is identified in ature of coal
The most important effect is played with coal property evaluation aspect.Coal petrography index is preferably used to carry out coal property evaluation and to existing
Resource substitutes, and is conducive to widening coal resource Application Range, it is ensured that coal resource is stably supplied.Existing Industrial Analysis index is commented
The mixture of coal effectively can not be analyzed and identify by the method for valency coal, therefore deposits when carrying out coal resource and substituting exploitation
Clearly disadvantageous.
Summary of the invention
In order to overcome existing integrated use coal petrography index to carry out the above-mentioned deficiency of method of coal source exploitation, the present invention provides one
Kind partly or entirely substitute with coal resource, widen coal resource Application Range, thus Optimized Coal Blending scheme, it is ensured that coal resource is stable
The method that the integrated use coal petrography index low with coal blending cost carries out the exploitation of coal source.
This integrated use coal petrography index carries out the method for coal source exploitation and includes following step successively:
I pair of selected new coal carries out coal petrography analysis, and mainly vitrinite reflectance analysis, if analysis result shows
This coal is single grade coal, then enter next link；If analysis result shows that this coal is mixed coal, then stop this kind of coal resource
Further research；Coal is as follows with the relation of reflectivity；
During reflectivity average scope 0.55-0.7, coal is bottle coal；
During reflectivity average scope 0.70-0.85, coal is 1/3 coking coal；
During reflectivity average scope 0.85-1.20, coal is rich coal；
During reflectivity average scope 1.20-1.80, coal is coking coal；
During reflectivity average scope 1.80-2.00, coal is lean coal；
Average is to identify the leading indicator which kind of coal is this coal be, identifies that a certain coal is that the leading indicator of single coal is
Reflectivity standards deviation, its qualification mode is as follows:
During reflectivity standards deviation ＜ 0.10, this coal is judged to single coal；When reflectivity standards deviation is not less than
When 0.10, this coal is judged to mixed coal；
Mixed coal is divided further, when reflectivity standards deviation is between 0.10-0.20, this coal is judged to simple mixed coal,
This coal i.e. is that do as one likes matter is close but still be not two kinds of coal mixtures of same coal class.
During reflectivity standards deviation ＞ 0.20, this coal is judged to complicated mixed coal, i.e. this coal be by two kinds and or two kinds with
The coal mixture that upper character differs greatly
The coal index analysis of II pair of selected coal being judged to single grade coal, including ash content, volatile matter, sulphur content, bonding
Index G value, thickness of colloidal matter layer Y value, judge ature of coal further, and compares with the coal of known performance, selected
Coal in find may substitute coal；
III uses 40kg Experiment Coke Oven to carry out new coal single grade coal coking performance evaluation, and with intend substituting
The experimental result of coal compares, and main investigates Indexes on Coke Strength M40, M10 and CRI, CSR, and proximity judges, new coal with
The coal institute coking charcoal strength difference scope intending substituting is as follows:
Intensity index M40 strength difference scope ± 1.0%；
Intensity index M10 strength difference scope ± 0.5%；
Intensity index CRI strength difference scope ± 1.5%；
Intensity index CSR strength difference scope ± 2.0%；
IV mixed coal scheme experiment, substitutes coal, two Coal Blending Schemes with new coal in the ratio of 4% 18%
Use 40kg Experiment Coke Oven to test under same experimental conditions, and refined Indexes on Coke Strength is compared, feasibility
Judge as follows:
Intensity index M40 strength difference scope ± 1.0%；
Intensity index M10 strength difference scope ± 0.5%；
Intensity index CRI strength difference scope ± 1.5%；
Intensity index CSR strength difference scope ± 2.0%；
V pair of single grade coal early stage is evaluated the new coal that can use and is tried out on industrial 7.63m coke oven, follows the tracks of coke matter
Amount synthesis coke data, it is determined that new coal service condition on industry coke oven, the ratio that new coal substitutes is according to step
IV experimental result, selects satisfactory substitution ratio to determine, substitutes coal institute coking charcoal strength values scope concrete
Require as follows:
Intensity index M40 strength difference scope >=89.0%；
Intensity index M10 strength difference scope≤5.5%；
Intensity index CRI strength difference scope≤25.0%；
Intensity index CSR strength difference scope >=68.0%.
The method that above-mentioned integrated use coal petrography index carries out the exploitation of coal source, is characterized in that: in step IV, new coal is
Coal is substituted in the ratio of 5% 14%；The ratio that new coal substitutes in step V is 5%-10%.Operate the most square
Just.
The method that above-mentioned integrated use coal petrography index carries out the exploitation of coal source；Satisfactory through step I to step V
New coal can formally use as available Mei Yuanjin factory.
The method that above-mentioned integrated use coal petrography index carries out the exploitation of coal source, is characterized in that, when step V, specifically following the tracks of
The method of coke quality is as follows:
(1) coal bunker that soars in advance is dispatched, the mixed coal of dress new coal on probation, and guarantee that the whole adapted of test mixed coal is complete
The mixed coal of other proportionings is reinstalled after Biing；
(2) coal is arranged to shift to an earlier date, for coal damping operation, the coal damping coal tank that sequentially soars；
(3) scheduling spot check enters the coal of coal tower is the mixed coal testing new coal；
(4) coking process district record is arranged to load the beginning heat (batch) number testing new coal mix proportion scheme mixed coal and terminate stove
Number, and by data reporting scheduling room；
(5) arrange the burnt operation area of fortune to sample in time and do the drum strength of proportioning institute coking charcoal used by new coal on probation with the most burnt
Analyze；
(7) the burnt operation area of fortune is arranged sequentially to soar coke bin for temporary transient shelf test coke in advance；
(8) the refined coke sample of new coal blend ratio on probation is adopted in inspection chemical examination operation area, does Industrial Analysis and hot strength.
Beneficial effects of the present invention
This Industrial Analysis index carries out the method for coal source exploitation, is also to find the method that new coal replaces raw coal.This
Method with coal petrography index (vitrinite reflectance) as technical way, in conjunction with conventional index (ash content, sulphur content, G
Value, Y value etc.), 40kg Experiment Coke Oven coking index (M40, M10, CRI, CSR) etc. constructs new coal can to coal
Substituting integrated evaluating method, then carry out industrial experiment by being tightly organized on 7.63m coke oven, defining a whole set of can grasp
The coal resource development approach that the property made is extremely strong, it is possible to partly or entirely substitute coal, has widened coal resource choosing
By scope, optimize Blending so that coal resource is protected for more stable, and coke quality index is stable, and coal blending cost is controlled.
After applying the method in coke making and coal blending works, since 2013, every coke quality index is all at the finger of applicant
In the range of mark, the kind of available new coal increases, and Blending is the most reasonable, and coal blending cost reduces.Annual use altogether in 2013
59557.21 tons of Lvliang City's coking coal, by monthly Lvliang City's coking coal with coking coal A actual settlement price mathematic interpolation, saves coal blending cost
530.63 ten thousand yuan；4590 tons of Poly little kiln coking coal on probation, by Poly coking coal with coking coal B price mathematic interpolation, saves coal blending
Cost 9.18 ten thousand yuan；Use holy 6002.404 tons of Buddhist 1/3 coking coal, by holy Buddhist 1/3 coking coal and based on by 1/3 coking coal price difference
Calculate, save coal blending cost 18.0 ten thousand yuan, save coal blending cost 557.81 ten thousand yuan annual total.
Detailed description of the invention
Below in conjunction with the detailed description of the invention of the embodiment detailed description present invention, but the specific embodiment party of the present invention
Formula is not limited to following embodiment.
Embodiment
A kind of Luliang Prefecture new coal of coking coal, it substitutes coal is coking coal A, and feasibility decision process is as follows:
1, selected new coal is carried out coal petrography analysis, and compare with coal.Vitrinite reflectance and
Its distribution results is shown in Table 1.
Table 1
| Sample | Reflectance value | Standard deviation | Type | <0.9 | 0.9-1.2 | 1.2-1.8 | 1.8-2.0 |
| Lvliang City's coking coal | 1.424 | 0.083 | Single coal | 0.0 | 0.0 | 100.0 | 0.0 |
| Using coking coal A | 1.468 | 0.092 | Single coal | 0.0 | 0.0 | 100.0 | 0.0 |
Through coal petrography index analysis, Lvliang City's coking coal is single grade coal, and with close by coking coal A coal petrography index.
2, carry out coal index analysis, and with comparing by coking coal A index.Conventional index analysis result is shown in Table 2.
Table 2
| Sample | Ad/% | Vdaf/% | ST, d/% | G | Y/mm | X/mm |
| Lvliang City's coking coal | 9.60 | 21.14 | 0.94 | 86 | 15 | 31.3 |
| Using coking coal A | 9.74 | 19.81 | 1.23 | 80 | 15 | 30.8 |
As can be known from the above table, Lvliang City's coal belongs to the coking coal that a kind of typical caking index is higher, and compared with coking coal A, and Lu
Beam coking coal ash content sulphur content is low, and volatile matter is high, and adhesive index value is high, and coal index has replacement feasibility.
3, use 40kg Experiment Coke Oven to carry out new coal single grade coal coking performance evaluation, and with intend substituting
The experimental result of coal compares, and independent coking gained Indexes on Coke Strength is shown in Table 3.
Table 3
| Sample | M40% | M10% | CRI% | CSR% |
| Lvliang City's coking coal coke | 84.8 | 9.3 | 24.8 | 65.2 |
| With coking coal A coke | 85.2 | 8.8 | 25.4 | 66.3 |
With compared with coking coal A institute coking charcoal, Lvliang City's coking coal institute coking charcoal index M10 is higher, and hot reactivity is slightly lower, instead
Should afterwards intensity lower slightly, but all in the range of acceptable difference.
4, utilize 40kg Experiment Coke Oven, carry out Lvliang City's coking coal and partly or entirely substitute with the coal blending experiment of coking coal A, have
Body Coal Blending Schemes is shown in Table 4.Rich coal in table 4 is rich coal A and rich coal B two kinds.
Table 4
Coal blending experimental result is shown in Table 5.
Table 5
| Experimental program | M40% | M10% | CRI% | CSR% |
| Scheme 1 | 82.1 | 6.2 | 26 | 63.5 |
| Scheme 2 | 83.7 | 6.2 | 25.2 | 65.2 |
| Scheme 3 | 82.2 | 7.2 | 24.6 | 64.6 |
| Scheme 4 | 81.9 | 7.5 | 26.7 | 61.2 |
From the point of view of coal blending experimental result, Lvliang City's coking coal substitutes when with coking coal A5% (scheme 1) gained coke quality index
Good, cold strength M40 raises, reactive reduction, and post reaction strength increases；After Lvliang City's coking coal allocates 10% and 15% into, coke M10 refers to
Marking significantly raised, the indexs such as post reaction strength substantially reduces, M10 and CSR, substantially beyond acceptable differences scope, illustrate that Lvliang City is burnt
Coal can only partly substitute with coking coal A effect in whole Blending.
5, use 7.63m coke oven to carry out Lvliang City's coking coal part to substitute with coking coal A industrial experiment, test concrete organizational process
As described in technical scheme and design part, specific experiment gained coke quality result is as shown in table 6.
Table 6
| Experimental program | M40% | M10% | CRI% | CSR% |
| Using coking coal A5% | 90.0 | 5.1 | 22.9 | 70.5 |
| Lvliang City's coking coal 5% | 90.0 | 5.2 | 23.0 | 70.3 |
From test gained coke quality index from the point of view of, Lvliang City's coking coal 5% substitute by coking coal A Coke Quality index without bright
Development rings, and can formally enter factory and use.
6, Lvliang City's coking coal formally enters factory in March, 2013 as new coal and uses, and part substitutes and using coking coal A, annual altogether
Use 59557.21 tons, by monthly Lvliang City's coking coal with coking coal A actual settlement price mathematic interpolation, save coal blending cost
530.63 ten thousand yuan.
Claims (5)
1. the method that integrated use coal petrography index carries out the exploitation of coal source, it includes following step successively:
I pair of selected new coal carries out coal petrography analysis, mainly vitrinite reflectance analysis, if analysis result shows this coal
Planting is single grade coal, then enter next link；If analysis result shows that this coal is mixed coal, then stop this kind of coal resource is entered
One step research；Coal is as follows with the relation of reflectivity；
During reflectivity average scope 0.55-0.7, coal is bottle coal；
During reflectivity average scope 0.70-0.85, coal is 1/3 coking coal；
During reflectivity average scope 0.85-1.20, coal is rich coal；
During reflectivity average scope 1.20-1.80, coal is coking coal；
During reflectivity average scope 1.80-2.00, coal is lean coal；
Average is to identify the leading indicator which kind of coal is this coal be, identify a certain coal be the leading indicator of single coal be reflection
Rate standard deviation, its qualification mode is as follows:
During reflectivity standards deviation ＜ 0.10, this coal is judged to single coal；When reflectivity standards deviation is not less than 0.10,
This coal is judged to mixed coal；
The coal index analysis of II pair of selected coal being judged to single grade coal, including ash content, volatile matter, sulphur content, caking index
G value, thickness of colloidal matter layer Y value, judge ature of coal further, and compares with the coal of known performance, selected coal
Kind is found the coal that may substitute；
III uses 40kg Experiment Coke Oven to carry out new coal single grade coal coking performance evaluation, and the coal substituted with plan
Experimental result compare, main investigate Indexes on Coke Strength M40, M10 and CRI, CSR, proximity judges, new coal is replaced with plan
Generation coal institute coking charcoal strength difference scope is as follows:
Intensity index M40 strength difference scope ± 1.0%；
Intensity index M10 strength difference scope ± 0.5%；
Intensity index CRI strength difference scope ± 1.5%；
Intensity index CSR strength difference scope ± 2.0%；
IV mixed coal scheme experiment, substitutes coal with new coal in the ratio of 4% 18%, and two Coal Blending Schemes use
40kg Experiment Coke Oven is tested under same experimental conditions, and compares refined Indexes on Coke Strength, and feasibility judges
As follows:
Intensity index M40 strength difference scope ± 1.0%；
Intensity index M10 strength difference scope ± 0.5%；
Intensity index CRI strength difference scope ± 1.5%；
Intensity index CSR strength difference scope ± 2.0%；
V pair of single grade coal early stage is evaluated the new coal that can use and is tried out on industrial 7.63m coke oven, follows the tracks of coke quality and combines
Conjunction collects coke data, it is determined that new coal service condition on industry coke oven, the ratio that new coal substitutes is real according to step IV
Testing result, the ratio that new coal substitutes is 5%-10%, substitutes coal institute coking charcoal strength values scope specific requirement
As follows:
Intensity index M40 strength difference scope >=89.0%；
Intensity index M10 strength difference scope≤5.5%；
Intensity index CRI strength difference scope≤25.0%；
Intensity index CSR strength difference scope >=68.0%.
The method that integrated use coal petrography index the most according to claim 1 carries out the exploitation of coal source, is characterized in that: in step IV
In, new coal is to substitute coal in the ratio of 5% 14%.
The method that integrated use coal petrography index the most according to claim 1 and 2 carries out the exploitation of coal source；It is characterized in that: pass through
Step I can formally use as available Mei Yuanjin factory to the satisfactory new coal of step V.
The method that integrated use coal petrography index the most according to claim 1 and 2 carries out the exploitation of coal source, is characterized in that in step
When V, the method for concrete tracking coke quality is as follows:
(1) scheduling is soared coal bunker in advance, the mixed coal of dress new coal on probation, and after guaranteeing the whole adapted of test mixed coal
Reinstall the mixed coal of other proportionings；
(2) coal is arranged to shift to an earlier date, for coal damping operation, the coal damping coal tank that sequentially soars；
(3) scheduling spot check enters the coal of coal tower is the mixed coal testing new coal；
(4) coking process district record is arranged to load the beginning heat (batch) number testing new coal mix proportion scheme mixed coal and terminate heat (batch) number,
And by data reporting scheduling room；
(5) sample in time and be the drum strength of proportioning institute coking charcoal used by new coal on probation and full Jiao point in the burnt operation area of arrangement fortune
Analysis；
(7) the burnt operation area of fortune is arranged sequentially to soar coke bin for temporary transient shelf test coke in advance；
(8) the refined coke sample of new coal blend ratio on probation is adopted in inspection chemical examination operation area, does Industrial Analysis and hot strength.
The method that integrated use coal petrography index the most according to claim 3 carries out the exploitation of coal source, is characterized in that in step V
Time, the method for concrete tracking coke quality is as follows:
(1) scheduling is soared coal bunker in advance, the mixed coal of dress new coal on probation, and after guaranteeing the whole adapted of test mixed coal
Reinstall the mixed coal of other proportionings；
(2) coal is arranged to shift to an earlier date, for coal damping operation, the coal damping coal tank that sequentially soars；
(3) scheduling spot check enters the coal of coal tower is the mixed coal testing new coal；
(4) coking process district record is arranged to load the beginning heat (batch) number testing new coal mix proportion scheme mixed coal and terminate heat (batch) number,
And by data reporting scheduling room；
(5) sample in time and be the drum strength of proportioning institute coking charcoal used by new coal on probation and full Jiao point in the burnt operation area of arrangement fortune
Analysis；
(7) the burnt operation area of fortune is arranged sequentially to soar coke bin for temporary transient shelf test coke in advance；
(8) the refined coke sample of new coal blend ratio on probation is adopted in inspection chemical examination operation area, does Industrial Analysis and hot strength.
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| CN105062531B (en) * | 2015-08-12 | 2018-04-06 | 中钢集团鞍山热能研究院有限公司 | Coking raw material application is classified and Quality evaluation and its instructs blending method |
| CN109423317B (en) * | 2017-08-23 | 2020-10-27 | 宝山钢铁股份有限公司 | Method for controlling stable coking property of production coal blending |
| CN108254403B (en) * | 2017-12-22 | 2020-09-25 | 黑龙江建龙化工有限公司 | Evaluation method for coking efficiency of single coal blending |
| CN111117669B (en) * | 2020-01-07 | 2021-02-26 | 武钢集团昆明钢铁股份有限公司 | Method for distinguishing classification of coking coal types and application thereof |
| CN111855618A (en) * | 2020-07-30 | 2020-10-30 | 宁夏宝丰能源集团股份有限公司 | Identification method of single coal |
| CN112881645B (en) * | 2021-02-19 | 2023-08-18 | 汾渭数字信息技术有限公司 | Method for accurately predicting coke cold strength by introducing coal rock components |
| CN113736502B (en) * | 2021-09-16 | 2024-01-19 | 天津铁厂有限公司 | Method for carrying out coal blending coking experiment by utilizing industrial coke oven |
| CN114660261A (en) * | 2022-03-28 | 2022-06-24 | 本钢板材股份有限公司 | Method for determining low-cost coal blending proportion by adopting coke microstructure detection and analysis |
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