CN113933158A - Coking coal coking property identification method - Google Patents
Coking coal coking property identification method Download PDFInfo
- Publication number
- CN113933158A CN113933158A CN202111216521.7A CN202111216521A CN113933158A CN 113933158 A CN113933158 A CN 113933158A CN 202111216521 A CN202111216521 A CN 202111216521A CN 113933158 A CN113933158 A CN 113933158A
- Authority
- CN
- China
- Prior art keywords
- coking
- coal
- crucible
- cover
- heating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003245 coal Substances 0.000 title claims abstract description 77
- 238000004939 coking Methods 0.000 title claims abstract description 69
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000010438 heat treatment Methods 0.000 claims abstract description 30
- 239000000571 coke Substances 0.000 claims abstract description 25
- 238000001816 cooling Methods 0.000 claims abstract description 12
- 238000012360 testing method Methods 0.000 claims abstract description 11
- 238000002474 experimental method Methods 0.000 claims abstract description 4
- 238000005485 electric heating Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000002156 mixing Methods 0.000 abstract description 8
- 238000001514 detection method Methods 0.000 description 7
- 230000008901 benefit Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/44—Sample treatment involving radiation, e.g. heat
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/22—Fuels; Explosives
- G01N33/222—Solid fuels, e.g. coal
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The invention relates to the field of coking coal coking identification, in particular to a coking coal coking identification method for quickly identifying coking coal resources so as to guide coking production blending coal in emergency, which comprises the following steps: a. firstly, crushing coking coal to be less than 0.2mm, then loading 1-10g of crushed coal sample into a crucible with a cover, and covering the crucible cover; b. placing the crucible with the cover filled with the coal sample into a heating furnace, heating to 950-1050 ℃, and maintaining at the temperature for 2-3 min; c. stopping heating after the heating time is up, taking out the crucible, and placing the crucible on an experiment table for natural cooling, wherein the crucible cover cannot be opened during the natural cooling; d. and cooling to normal temperature, taking out the coke coal sample, and then placing the coke coal sample on a compressive strength tester to test the compressive strength of the coke coal sample, wherein the compressive strength is used for expressing the coking property of the coal. The method is particularly suitable for the coking identification process of the coking coal.
Description
Technical Field
The invention relates to the field of coking coal coking identification, in particular to a coking coal coking identification method.
Background
Coking property is the most important index of coking coal and is the key point of high and low coke quality. Before various coals are applied to coking production, a coking test needs to be carried out to know the coking performance of coking coal so as to guide the coking production to mix coal. The coal blending ratio during the existing coking production changes frequently, the coke quality fluctuation is large, and the cost is high. Taking a 200kg coke oven test as an example, the coking test result can better grasp the coking condition of coking coal, and the method is more instructive in simulating a large coke oven. However, the coke oven of 200kg requires high cost in labor, maintenance, fuel test and the like, and the test time is long, so that the production guidance is seriously delayed under the conditions of multiple coal source suppliers and complex coal sources, thereby losing the significance of guiding coking and coal blending.
Disclosure of Invention
The invention aims to solve the technical problem of providing a coking coal coking property identification method which can quickly identify coking property of coal resources so as to guide coking production blending coal in emergency.
The technical scheme adopted by the invention for solving the technical problems is as follows: the coking coal coking identification method comprises the following steps: a. firstly, crushing coking coal to be less than 0.2mm, then loading 1-10g of crushed coal sample into a crucible with a cover, and covering the crucible cover; b. placing the crucible with the cover filled with the coal sample into a heating furnace, heating to 950-1050 ℃, and maintaining at the temperature for 2-3 min; c. stopping heating after the heating time is up, taking out the crucible, and placing the crucible on an experiment table for natural cooling, wherein the crucible cover cannot be opened during the natural cooling; d. and cooling to normal temperature, taking out the coke coal sample, and then placing the coke coal sample on a compressive strength tester to test the compressive strength of the coke coal sample, wherein the compressive strength is used for expressing the coking property of the coal.
Further, in step b, the crucible with the cover containing the coal sample is placed in a heating furnace, and the heating furnace is heated to 800 ℃ before the crucible is placed.
Further, in step a, the pulverized coal sample was 4 g.
Further, in the step b, the crucible with the cover filled with the coal sample is put into a heating furnace and heated to 1000 ℃.
Further, in the step b, the heating mode is electric heating.
The invention has the beneficial effects that: the invention aims at the problems of frequent change of coal blending ratio, large fluctuation of coke quality and high cost in coking production caused by multiple manufacturers, complex sources, large fluctuation of quality and unsustainable supply of most of coal types when the existing coking coal resources are supplied, and creatively designs the device which can realize quick detection in short time, thereby better distinguishing the coking property of the coking coal resources, effectively guiding coking coal blending, stabilizing coke quality, greatly reducing the times of coking tests of the coke oven, having stronger timeliness, better guiding coking production coal blending, reducing the fluctuation of coke quality and having good direct economic benefit and indirect economic benefit. The method is particularly suitable for the coking identification process of the coking coal.
Detailed Description
The coking coal coking identification method comprises the following steps: a. firstly, crushing coking coal to be less than 0.2mm, then loading 1-10g of crushed coal sample into a crucible with a cover, and covering the crucible cover; b. placing the crucible with the cover filled with the coal sample into a heating furnace, heating to 950-1050 ℃, and maintaining at the temperature for 2-3 min; c. stopping heating after the heating time is up, taking out the crucible, and placing the crucible on an experiment table for natural cooling, wherein the crucible cover cannot be opened during the natural cooling; d. and cooling to normal temperature, taking out the coke coal sample, and then placing the coke coal sample on a compressive strength tester to test the compressive strength of the coke coal sample, wherein the compressive strength is used for expressing the coking property of the coal.
The invention solves the problem of difficult identification of coking coal coking property caused by complicated and various sources of the existing coking coal resources, and can realize quick detection in short time, thereby better distinguishing the coking property of the coking coal resources, greatly reducing the times of coking tests of the coke oven, having stronger timeliness, better guiding coking production coal blending and reducing the fluctuation of coke quality. In the step b, the heating mode is preferably electric heating, so that the efficiency of coke coal sample detection is improved.
In order to better realize rapid detection and reduce detection time, the following scheme is preferred: in step b, the crucible with the cover containing the coal sample is placed into a heating furnace, and the heating furnace is heated to 800 ℃ before being placed. The preheated heating furnace can provide a good temperature basis for subsequent heating to 950-.
In general, for example, in a 200kg coke oven, it is preferable that the pulverized coal sample in step a is 4g, and in the case of 4g, the crucible with a cover containing the coal sample in step b is placed in a heating furnace and heated to 1000 ℃.
The method can also be used for identifying the coking property of different types of coking coals, and the results are shown in the following table 1:
TABLE 1 coking identification of different coal types
Therefore, the detection method has the advantages of wide detection practical range, obvious technical advantages and wide market popularization prospect.
Claims (5)
1. The coking coal coking identification method is characterized by comprising the following steps:
a. firstly, crushing coking coal to be less than 0.2mm, then loading 1-10g of crushed coal sample into a crucible with a cover, and covering the crucible cover;
b. placing the crucible with the cover filled with the coal sample into a heating furnace, heating to 950-1050 ℃, and maintaining at the temperature for 2-3 min;
c. stopping heating after the heating time is up, taking out the crucible, and placing the crucible on an experiment table for natural cooling, wherein the crucible cover cannot be opened during the natural cooling;
d. and cooling to normal temperature, taking out the coke coal sample, and then placing the coke coal sample on a compressive strength tester to test the compressive strength of the coke coal sample, wherein the compressive strength is used for expressing the coking property of the coal.
2. The coking coal cokeability identification method of claim 1, wherein: in step b, the crucible with the cover containing the coal sample is placed into a heating furnace, and the heating furnace is heated to 800 ℃ before being placed.
3. The coking coal cokeability identification method of claim 1 or 2, wherein: in step a, the pulverized coal sample was 4 g.
4. The coking coal cokeability identification method of claim 1 or 2, wherein: in the step b, the crucible with the cover filled with the coal sample is placed into a heating furnace and heated to 1000 ℃.
5. The coking coal cokeability identification method of claim 1 or 2, wherein: in the step b, the heating mode is electric heating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111216521.7A CN113933158A (en) | 2021-10-19 | 2021-10-19 | Coking coal coking property identification method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111216521.7A CN113933158A (en) | 2021-10-19 | 2021-10-19 | Coking coal coking property identification method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113933158A true CN113933158A (en) | 2022-01-14 |
Family
ID=79280486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111216521.7A Pending CN113933158A (en) | 2021-10-19 | 2021-10-19 | Coking coal coking property identification method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113933158A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115508167A (en) * | 2022-11-01 | 2022-12-23 | 中钢集团鞍山热能研究院有限公司 | Method for identifying coking performance of coking coal by using colloidal microstructure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793643A (en) * | 2010-02-09 | 2010-08-04 | 武汉钢铁(集团)公司 | Method for refining coke used for measuring coke optical texture |
| CN106950142A (en) * | 2017-03-22 | 2017-07-14 | 沈阳铝镁设计研究院有限公司 | A kind of experimental evaluation method of petroleum coke coking ability in can-type calcine furnace |
| CN108531205A (en) * | 2018-03-02 | 2018-09-14 | 武汉科技大学 | A kind of coke production method |
| CN112694901A (en) * | 2020-12-04 | 2021-04-23 | 攀钢集团研究院有限公司 | Coking coal coking property rapid identification method and application |
-
2021
- 2021-10-19 CN CN202111216521.7A patent/CN113933158A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793643A (en) * | 2010-02-09 | 2010-08-04 | 武汉钢铁(集团)公司 | Method for refining coke used for measuring coke optical texture |
| CN106950142A (en) * | 2017-03-22 | 2017-07-14 | 沈阳铝镁设计研究院有限公司 | A kind of experimental evaluation method of petroleum coke coking ability in can-type calcine furnace |
| CN108531205A (en) * | 2018-03-02 | 2018-09-14 | 武汉科技大学 | A kind of coke production method |
| CN112694901A (en) * | 2020-12-04 | 2021-04-23 | 攀钢集团研究院有限公司 | Coking coal coking property rapid identification method and application |
Non-Patent Citations (1)
| Title |
|---|
| 何孝丰: "微热成型条件下塑料对含碳球团性能的影响", 中国优秀硕士学位论文全文数据库工程科技I辑, no. 2019, pages 6 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115508167A (en) * | 2022-11-01 | 2022-12-23 | 中钢集团鞍山热能研究院有限公司 | Method for identifying coking performance of coking coal by using colloidal microstructure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Chen et al. | Torrefaction operation and optimization of microalga residue for energy densification and utilization | |
| Liang et al. | Characteristics of coal re-oxidation based on microstructural and spectral observation | |
| CN104140834B (en) | Based on the coking coal divided method of coking property and the application in coal blending | |
| CN108399512B (en) | Method for evaluating metallurgical coke | |
| CN111117669B (en) | Method for distinguishing classification of coking coal types and application thereof | |
| CN101793643B (en) | Method for refining coke used for measuring coke optical texture | |
| CN113933158A (en) | Coking coal coking property identification method | |
| CN113736502A (en) | Method for carrying out coal blending and coking experiment by using industrial coke oven | |
| CN107541229B (en) | Coke prepared by blending ultrahigh-sulfur coking coal and coking method | |
| Qin et al. | Caking property and active components of coal based on group component separation | |
| CN110045082B (en) | Method for measuring and evaluating high-temperature performance of lump coal in smelting reduction iron making | |
| CN105784545B (en) | A kind of expansion of coal and shrinkage evaluation method | |
| CN105062532B (en) | Coal blending method for controlling coke quality | |
| CN105713632B (en) | Coal blending method mainly using fat coal | |
| WO2022011693A1 (en) | Optimization method for directional preparation technique and efficient use of semi-coke for blast furnace injection | |
| GB690791A (en) | Improvements in or relating to desulfurization of petroleum coke | |
| CN110797090A (en) | Method for predicting sulfur content of coke, method for predicting sulfur conversion rate of coal, method for preparing blended coal, and coking method | |
| CN115508167B (en) | Method for identifying coking performance of coking coal by using colloid microstructure | |
| CN202516591U (en) | Coking unit for refined bituminous in laboratory | |
| Qin et al. | Physiochemical structure of semicoke derived from co‐carbonization of coal and sawdust blends | |
| Khairil et al. | Fundamental study on the carbonization characteristics of low rank coal under low temperature and its application on traditional blacksmith | |
| Wang et al. | Partial Discharge Characteristic Analysis of Oil-paper Insulation System with Different Aging Degree | |
| CN103294870B (en) | Set up the method for coking coal ash content STRENGTH ON COKE Effect of Thermal Performance model | |
| CN104946284A (en) | Coke of blended pretreated low-order non-sticking bituminous coal and coking method | |
| CN219922991U (en) | Coal blending coking experiment box |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |