A New Coking Coal Charging Method for 6 m Top-Charged Coke Oven: System Design and Experiment
Source abstract
Abstract
Coking with low moisture coal is an important link of energy conservation and coke quality improvement in the coking industry. Aiming at the problems of dust emission and bad accumulation in the coking chamber during coal charging, a new system of coking coal charged into 6 m top-charge coke oven was studied and designed, in which a cylinder with telescopic and high temperature resistance was used to fill the coking chamber with a dense phase continuous flow. The coal transport characteristics, dust emission, and accumulation characteristics were studied through the actual operation of the equipment. The results found that the matching of spiral feeding speed and cylinder lifting speed had an important influence on the transport characteristics, when moisture was 5%, and the control dense phase transport conditions were—cylinder lifting speed of 0.02 m/s and spiral feeding speed control range of [0.31 m/s, 0.50 m/s]. The new device was found to reduce dust emission by 90% per square meter, compared to the traditional. The influence of controllable factors on the accumulation characteristics of coal was studied, and the essential conditions for optimal repose angle and bulk density were obtained through an orthogonal test, the prediction model of accumulation characteristics was established.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Thermochemical Biomass Conversion Processes · Coal Properties and Utilization · Granular flow and fluidized beds
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Environment Science and Engineering, Tianjin University, Tianjin 300350, China
References (40)
Show source-provided references
1. Effects of coal moisture control and coal briquette technology on structure and reactivity of cokes10.3103/S1068364X15050075 ↗
2. Application and effect analysis of CMC in coking plant
3. Development and application of coal moisture control technology in coking process
4. Coal for metallurgical coke production: Predictions of coke quality and future requirements for cokemaking10.1016/S0166-5162(02)00123-4 ↗
5. Development and application of coal moisture control technology in coking process
6. Coal Preheating and Moisture Control in Muroran Coking Plant, Japan
7. Development and Application of Coal Moisture Control Technology at Home and Abroad
8. Development of Coal Moisture Control Technology and Its Application in Coking Plant
9. Problems and improvement of charging emission control technologyfor top-charging coke oven
10. Suppression of airborne particulates in iron ore processing facilities10.1016/j.minpro.2009.09.003 ↗
11. Factors influencing dust suppressant effectiveness
12. Dong, K.J. (2017). Study on Fluidized Bed Particle Grading Characteristics of Coking Coal, Huazhong University of Science and Technology.
13. Fang, R. (2012). The Integration Study on Coking Coal Moisture Control and Classification in Vibration Fluidized Bed, Northeastern University.
14. Experiment and simulation of the pneumatic classification and drying of coking coal in a fluidized bed dryer10.1016/j.ces.2019.115364 ↗
15. Effect of drying conditions on moisture re-adsorption and particulate matter emissions during the classification drying of coking coal10.1016/j.fuproc.2019.04.019 ↗
16. Differences in dry and wet grinding with a high solid concentration of coking coal using a laboratory conical ball mill: Breakage rate, morphological characterization, and induction time10.1016/j.apt.2019.08.016 ↗
17. Granule transformation in a twin screw granulator: Effects of conveying, kneading, and distributive mixing elements10.1016/j.powtec.2018.11.099 ↗
18. Segregation phenomenon in a rotary drum: Experimental study and CFD simulation10.1016/j.powtec.2016.02.015 ↗
19. Size segregation of bidisperse granular mixtures in rotating drum10.1016/j.powtec.2020.07.030 ↗
20. Tribo-charging of binary mixtures composed of coarse and fine particles in gas–solid pipe flow10.1016/j.partic.2018.07.001 ↗
21. Behavior of Fugitive Dust in the Process of Filling Powder in the Bags
22. CFD modeling of black powder particles deposition in 3D 90-degree bend of natural gas pipelines10.1016/j.jngse.2020.103330 ↗
23. Measurement of the deposit formation during pneumatic transport of PMMA powder10.1016/j.apt.2020.07.005 ↗
24. Song, X.N. (2018). Construction of a New Type of Coal Moisture Control Technology Based on the Characteristics of Indirect Heat and Mass Transfer Process in Coking Coal, Tianjin University.
25. A One-D approach for modeling transport and deposition of Black Powder particles in gas network10.1016/j.jngse.2015.11.034 ↗
26. Numerical simulation and experimental study for aerodynamic characteristics and powder transport behavior of novel nozzle10.1016/j.optlaseng.2019.105873 ↗
27. Characteristics and formation mechanism of plug flow in the industrial vertical pipeline of dense-phase pneumatic conveying of pulverized coal10.1016/j.ces.2019.05.002 ↗
28. The impacts of coal dust on miners’ health: A review10.1016/j.envres.2020.109849 ↗
29. A review on the angle of repose of granular materials10.1016/j.powtec.2018.02.003 ↗
30. Theoretical and experimental investigation on angle of repose of biomass–coal blends10.1016/j.fuel.2013.07.098 ↗
31. Modeling granular material flows: The angle of repose, fluidization and the cliff collapse problem10.1016/j.pss.2013.03.001 ↗
32. The use of the photogrammetric method for measurement of the repose angle of granular materials10.1016/j.measurement.2017.10.005 ↗
33. DEM investigation of angle of repose for super-ellipsoidal particles10.1016/j.partic.2019.05.005 ↗
34. Coal agglomeration and its effect on bulk density10.1016/0032-5910(94)02912-8 ↗
35. Parameter study of the injection configuration in a zero boil-off hydrogen storage tank using orthogonal test design10.1016/j.applthermaleng.2016.08.051 ↗
36. Orthogonal test design for optimization of synthesis of super early strength anchoring material10.1016/j.conbuildmat.2018.06.029 ↗
37. Optimized microporous layer for improving polymer exchange membrane fuel cell performance using orthogonal test design10.1016/j.apenergy.2019.113714 ↗
38. On the OA(1536,13,2,7) and related orthogonal arrays10.1016/j.disc.2019.111659 ↗
39. Improving seed germination of the eggplant rootstock Solanum torvum by testing multiple factors using an orthogonal array design10.1016/j.scienta.2015.07.030 ↗
40. Analysis of factors influencing coking coal’s bulk density