Yongxu Wang , Jing Zhang , Zhongkun Yang , Bin Li , Lifeng Xie , Yong Cao
{"title":"三种抑制剂对钛粉尘层火焰传播的抑制特性","authors":"Yongxu Wang , Jing Zhang , Zhongkun Yang , Bin Li , Lifeng Xie , Yong Cao","doi":"10.1016/j.powtec.2024.120368","DOIUrl":null,"url":null,"abstract":"<div><div>The suppression effect of three inhibitors (TiO<sub>2</sub>, NaHCO<sub>3</sub>, and NH<sub>4</sub>H<sub>2</sub>PO<sub>4</sub>) on the flame propagation of titanium dust layer is investigated in the self-made experimental system. Both camera and infrared images are used to record the effect of the inhibitor on the flame propagation process of titanium/inhibitors powder. The combustion products of three inhibitor/Ti dusts are analyzed to suppression mechanism of inhibitors. The effect of three inhibitors on the ignition induction time of the titanium powder is studied. The decomposition process of NaHCO<sub>3</sub> and NH<sub>4</sub>H<sub>2</sub>PO<sub>4</sub> and the production of gas under high temperature conditions may be the main reason for accelerating the flame propagation. The multiple high temperature regions in the dust layer can accelerate the flame propagation rate. Suppression mechanisms of three inhibitors are explained in detail. The inhibition mechanism of TiO<sub>2</sub> mainly lies in its strong thermal stability. The inhibition effects of NaHCO<sub>3</sub> and NH<sub>4</sub>H<sub>2</sub>PO<sub>4</sub> include the dilution process and the decomposition process.</div></div>","PeriodicalId":407,"journal":{"name":"Powder Technology","volume":"449 ","pages":"Article 120368"},"PeriodicalIF":4.5000,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Suppression characteristic of three inhibitors on the flame propagation of titanium dust layer\",\"authors\":\"Yongxu Wang , Jing Zhang , Zhongkun Yang , Bin Li , Lifeng Xie , Yong Cao\",\"doi\":\"10.1016/j.powtec.2024.120368\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>The suppression effect of three inhibitors (TiO<sub>2</sub>, NaHCO<sub>3</sub>, and NH<sub>4</sub>H<sub>2</sub>PO<sub>4</sub>) on the flame propagation of titanium dust layer is investigated in the self-made experimental system. Both camera and infrared images are used to record the effect of the inhibitor on the flame propagation process of titanium/inhibitors powder. The combustion products of three inhibitor/Ti dusts are analyzed to suppression mechanism of inhibitors. The effect of three inhibitors on the ignition induction time of the titanium powder is studied. The decomposition process of NaHCO<sub>3</sub> and NH<sub>4</sub>H<sub>2</sub>PO<sub>4</sub> and the production of gas under high temperature conditions may be the main reason for accelerating the flame propagation. The multiple high temperature regions in the dust layer can accelerate the flame propagation rate. Suppression mechanisms of three inhibitors are explained in detail. The inhibition mechanism of TiO<sub>2</sub> mainly lies in its strong thermal stability. The inhibition effects of NaHCO<sub>3</sub> and NH<sub>4</sub>H<sub>2</sub>PO<sub>4</sub> include the dilution process and the decomposition process.</div></div>\",\"PeriodicalId\":407,\"journal\":{\"name\":\"Powder Technology\",\"volume\":\"449 \",\"pages\":\"Article 120368\"},\"PeriodicalIF\":4.5000,\"publicationDate\":\"2024-10-16\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Powder Technology\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S003259102401012X\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENGINEERING, CHEMICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Powder Technology","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S003259102401012X","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
Suppression characteristic of three inhibitors on the flame propagation of titanium dust layer
The suppression effect of three inhibitors (TiO2, NaHCO3, and NH4H2PO4) on the flame propagation of titanium dust layer is investigated in the self-made experimental system. Both camera and infrared images are used to record the effect of the inhibitor on the flame propagation process of titanium/inhibitors powder. The combustion products of three inhibitor/Ti dusts are analyzed to suppression mechanism of inhibitors. The effect of three inhibitors on the ignition induction time of the titanium powder is studied. The decomposition process of NaHCO3 and NH4H2PO4 and the production of gas under high temperature conditions may be the main reason for accelerating the flame propagation. The multiple high temperature regions in the dust layer can accelerate the flame propagation rate. Suppression mechanisms of three inhibitors are explained in detail. The inhibition mechanism of TiO2 mainly lies in its strong thermal stability. The inhibition effects of NaHCO3 and NH4H2PO4 include the dilution process and the decomposition process.
期刊介绍：
Powder Technology is an International Journal on the Science and Technology of Wet and Dry Particulate Systems. Powder Technology publishes papers on all aspects of the formation of particles and their characterisation and on the study of systems containing particulate solids. No limitation is imposed on the size of the particles, which may range from nanometre scale, as in pigments or aerosols, to that of mined or quarried materials. The following list of topics is not intended to be comprehensive, but rather to indicate typical subjects which fall within the scope of the journal's interests:
Formation and synthesis of particles by precipitation and other methods.
Modification of particles by agglomeration, coating, comminution and attrition.
Characterisation of the size, shape, surface area, pore structure and strength of particles and agglomerates (including the origins and effects of inter particle forces).
Packing, failure, flow and permeability of assemblies of particles.
Particle-particle interactions and suspension rheology.
Handling and processing operations such as slurry flow, fluidization, pneumatic conveying.
Interactions between particles and their environment, including delivery of particulate products to the body.
Applications of particle technology in production of pharmaceuticals, chemicals, foods, pigments, structural, and functional materials and in environmental and energy related matters.
For materials-oriented contributions we are looking for articles revealing the effect of particle/powder characteristics (size, morphology and composition, in that order) on material performance or functionality and, ideally, comparison to any industrial standard.
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