共查询到19条相似文献,搜索用时 46 毫秒
1.
改良MPS型抑尘剂在料堆防尘中的试验研究 总被引:2,自引:0,他引:2
阐述了改良MPS型系列抑尘剂在料堆防尘中的试验研究。该类抑尘剂既防尘又具有抗水性能,防尘期长且成本低廉.适合各种露天料堆、料场。 相似文献
2.
3.
5.
6.
润湿型化学抑尘剂的试验研究 总被引:11,自引:1,他引:11
利用润湿型化学抑尘剂除尘作为粉尘治理的手段之一,有很好的应用前景和发展空间.在分析了抑尘剂抑尘机理的基础上,对润湿型化学抑尘剂进行了系统研究,对比研究了多种吸湿材料的吸湿保湿能力和几种表面活性剂的润湿能力,优选了氯化钙、氯化镁和曲拉通X-100作为抑尘剂的基料和辅料,进行抑尘剂配方研究并对抑尘剂配方进行了优化.在现场试验中,喷洒添加了抑尘剂配方溶液的粉尘含水率明显高于只喷洒清水的粉尘含水率且保湿时间长;在公路碾压试验中喷洒了抑尘剂溶液的公路的粉尘抑制期达到4d以上,取得了很好的抑尘效果. 相似文献
7.
8.
CH抑尘剂的性能与应用 总被引:2,自引:0,他引:2
介绍了CH(淀粉接枝丙烯酸盐类)抑尘剂的研制技术,并对其抑尘效果进行了实验室和现场应用试验。结果表明,该抑尘剂能有效抑制粉尘飞扬,净化大气环境,改善劳动条件,具有显著的经济、环境和社会效益。 相似文献
9.
10.
为厘清各类矿用抑尘剂的设计原理、配比、作用机理及其抑尘效果,总结井工矿用和露天矿用抑尘剂的研究现状,分析润湿型抑尘剂和环保粘结型抑尘剂的原料种类及抑尘效果。结果表明:井工矿用抑尘剂的重点是润湿型抑尘剂研究,包括煤尘润湿性的物理化学本质以及不同润湿剂作用下的抑尘效果及其微观作用机理;露天矿用抑尘剂的重点是粘结型抑尘剂的固结性能研究;新型环保型抑尘剂作用原理主要包括天然高分子凝聚、微生物固结以及生物质材料粘结作用下的抑尘效果;针对目前各类抑尘剂使用效果差异大、普适性差的现状,未来研究重点应集中在抑尘剂种类精细化、抑尘剂性能测试标准化、抑尘剂研发方法自上而下理论指导化。 相似文献
11.
12.
13.
低压文丘里除尘器在选厂碎矿粉尘治理中的应用 总被引:1,自引:0,他引:1
低压文丘里除尘器具有除尘效率高、阻力小、能耗低、安装使用方便等特点 ,在我公司篦子沟矿选厂使用表明 :岗位粉尘浓度小于 2mg m3,外排粉尘浓度小于 6 4.32mg m3,除尘效率达 98.9% 相似文献
14.
调查了水泥厂机立窑各类除尘设备的现状 ,结果表明 ,干法静电除尘器是目前机立窑烟尘治理的首选除尘器 相似文献
15.
介绍集装车与防尘统一于一体的无尘装车技术及具有设备本质安全化特点的无尘装车机在解决粉状物料装车作业时的扬尘问题,保护作业工人健康,维护厂区环境方面的重要优越性。 相似文献
16.
The rate of propagation of flame and the rate of propagation of smouldering in still air, have been investigated for several particle sizes, mixtures of coarse and fine dusts of the same material, and mixtures containing partially coarse dusts of limestone. Wood sawdust and grass dust were used as the industrial materials. Measurements were made by using a mold of acceptable dimensions. The results obtained indicated that the flaming and smouldering rates are dependent on the particle size and the depth of the layer and the values of the smouldering rates were found to be about 20% of the values obtained with flaming. Also, an admixture of fine dust of 50% of the same material to coarse dust for a 0.5 cm layer of both materials is sufficient to increase the values of the flaming rate by 61% for wood sawdust and the smouldering rate by 88% and 52% for wood sawdust and grass dust, respectively. The admixture of limestone as low as 10% was sufficient to produce zero propagation for both types of burning. 相似文献
17.
Flame propagation in hybrid mixture of coal dust and methane 总被引:1,自引:0,他引:1
Yi Liu Jinhua Sun Dongliang Chen 《Journal of Loss Prevention in the Process Industries》2007,20(4-6):691-697
To investigate the flame propagation through hybrid mixture of coal dust and methane in a combustion chamber, a high-speed video camera with a microscopic lens and a Schlieren optical system were used to record the flame propagation process and to obtain the direct light emission photographs. Flame temperature was detected by a fine thermocouple. The suspended coal dust in the mixture of methane and air was ignited by an electric spark. The flame propagation speeds and maximum flame temperatures of the mixture were analyzed. The results show that the co-presence of coal dust and methane improves the flame propagation speed and maximum flame temperature notably, which become much higher than that of the single-coal dust flame. The flame front temperature varies with the coal dust concentration. 相似文献
18.
亚麻原料初加工过程中亚麻粉尘危害严重,亚麻粉尘是亚麻原料厂的主要职业危害,防尘工程技术措施效果如何,对作业工人的身体健康有着直接的影响。本文通过对亚麻原料厂防尘工程的全面分析,运用模糊数学原理建立的模糊综合评判方法,在专家打分评估的基础上,应用定性与定量的综合决策方法,结合层次分析法分配权重,对亚麻原料厂防尘工程技术措施进行了综合评价,得出了比较符合实际的评价结果,为解决其他方面多因素、多层次的复杂系统问题提供了一个科学、可靠的参考,为其他行业或各类企业进行劳动卫生工程综合评价提供了可信、可行的先例。 相似文献