Experimental Investigation on the Influence of Ultrahigh Pressure Cold Briquetting Characteristics with Binders for Pulverized Coal in Hami Area

IF 0.8 4区工程技术 Q4 CHEMISTRY, MULTIDISCIPLINARY

Solid Fuel Chemistry Pub Date : 2025-03-31 DOI:10.3103/S0361521924700526

Sen Zhang, Haonan Fang, Yiming Gao

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Abstract

Briquetting is a crucial component of clean coal technology. Pulverized coal from Naomao Lake coal mine in Hami area was selected as experimental sample to investigate the effects of binder and moisture content on briquette quality. The results show that binders can enhance relax density, compressive strength, hydrophobicity and durability. And, binder type has a significant impact on energy consumption during briquetting process. For cement and clay, as addition ratio increases, briquetting energy consumption also increases. For bentonite and sodium humate, addition ratio has a small impact on briquetting energy consumption. In addition, compressive strength, hydrophobicity and durability of briquettes gradually increase with the enhancement of moisture content. Moisture can provide effective lubrication during moulding process, reducing friction between raw materials and between raw materials and mold. Afterward, by using the PCA method, a new comprehensive evaluation index was established to investigate the influence of binder type and binder ratio on the quality characteristics of pulverized coal briquetting. The results show that comprehensive evaluation index of briquettes gradually increases with the enhancement of binder ratio, and the briquette containing 15% sodium humate has the highest comprehensive evaluation index, which confirms the reliability of the proposed evaluation method for briquette quality.

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来源期刊

Solid Fuel Chemistry CHEMISTRY, MULTIDISCIPLINARY-ENERGY & FUELS

CiteScore

1.10

自引率

28.60%

发文量

审稿时长

6-12 weeks

期刊介绍： The journal publishes theoretical and applied articles on the chemistry and physics of solid fuels and carbonaceous materials. It addresses the composition, structure, and properties of solid fuels. The aim of the published articles is to demonstrate how novel discoveries, developments, and theories may be used in improved analysis and design of new types of fuels, chemicals, and by-products. The journal is particularly concerned with technological aspects of various chemical conversion processes and includes papers related to geochemistry, petrology and systematization of fossil fuels, their beneficiation and preparation for processing, the processes themselves, and the ultimate recovery of the liquid or gaseous end products.