Showing papers by "Wen Nie published in 2014"
TL;DR: Wang et al. as mentioned in this paper developed an air curtain dust drawing and purification system to prevent high concentration dust on whole-rock comprehensive mechanization driving face efficiently, this system is consisted of two sections, air curtain drawing device and dust purification device.
Abstract: To prevent high concentration dust on whole-rock comprehensive mechanization driving face efficiently, air curtain dust drawing and purification system were developed. This system is consisted of two sections, air curtain dust drawing device and dust purification system device. It determines optimized parameters of air curtain drawing dust device by combining site actual conditions and has realized short distance 3d dust absorbing and random movement. After using the efficient dust control system for whole-rock comprehensive mechanization driving face on south main return way,the average dust-laying rate of total coal dust and respirable dust in manually operation department, respectively reach 91.6% and 90.5%.It shows that this system is a efficient means for dust control of whole-rock comprehensive mechanization driving face.
1 citations
TL;DR: In this paper, the authors studied the mechanism of foam dedusting and learned that the process of foam-dedusting is comprised of interception, adhesion, wetting, and sedimentation.
Abstract: This paper explains how to solve the problem that the foam dedusting agent is not able to dedust efficiently according to its low foaming rate and poor wettability and finally obtains an optimal formula of foam dedusting agent. We first studied the mechanism of foam dedusting and learned that the process of foam-dedusting is comprised of interception, adhesion, wetting, and sedimentation. Then the optimal formula named Foam Dedusting Agent CNSD-1 were obtained, which is comprised of Sodium Dodecyl sulfate being foaming agent, Soluble starch being foam stabilizer, Dioctyl sodium sulfosuccinate being wetting agent, by an advanced ROSS-Miles experiment and contact angle measurement. The mass concentration of the three kind of powders respectively are 0.5%, 0.06% and 0.3%. Through the field application the conclusion can be draw that the total coal dust dedusting percentage of it is 96.35% and the respiratory coal dust dedusting percentage of it is 86.08%, the Effect is remarkable.
1 citations