全自动漏斗吸嘴式粉尘发生装置样机研制

发布时间：2018-04-28 17:15

本文选题：安全工程 + 粉尘发生装置　；参考：《安全与环境学报》2015年04期

【摘要】：基于粉尘浓度测定和粉尘分布规律、运移规律和沉降规律研究的需要,在气溶胶粉尘发生器的基础上,设计了由计算机控制的全自动漏斗吸嘴式粉尘发生装置。提出了该装置的设计原理、设计结构及运行操作方法。基于C++设计了该装置的控制程序软件包,利用软件包中的驱动控制程序,实现了在计算机上对粉尘发生装置的远程遥控。监测传感器可及时发现吸嘴口是否出现粉尘堵塞,故障传感器同步监测步进电机和搅拌电机,通过微型计算机分析故障并发出相应控制指令。操作过程中,通过对圈数、时长、粉尘用量和密度的设置,可发生1种或多种粒径粉尘,控制发尘浓度、分散度,实现粉尘连续供给。通过发尘效果检验,得出在不同作业工序下,无论是连续产尘的喷浆、凿岩作业,还是瞬间产尘的爆破作业,该装置都具有较好的模拟产尘效果,产尘的分散度、浓度与现场实测值基本一致,表明该装置的粉尘粒度分布控制、产尘流量控制等技术达到了预期效果,可为研究粉尘相关特性试验提供稳定可靠、数量可控的粉尘源。
[Abstract]:Based on the requirements of dust concentration measurement and dust distribution, migration and sedimentation, a computer-controlled automatic dust generator with funnel nozzle was designed. The design principle, design structure and operation method of the device are put forward. The control program software package is designed based on C, and the remote control of dust generator is realized by using the driving control program in the software package. The monitoring sensor can detect the dust clogging at the mouth of the sucker in time. The fault sensor can monitor the stepping motor and the stirring motor synchronously. The fault is analyzed by microcomputer and the corresponding control instruction is issued. In the process of operation, one or more kinds of particle size dust can be produced by setting the number of cycles, time, dust dosage and density, controlling the dust emission concentration, dispersing degree, and realizing the continuous supply of dust. Through the test of dust-producing effect, it is concluded that under different working procedures, whether continuous dust-producing jetting, rock drilling or instantaneous dust-producing blasting, the device has better simulated dust-producing effect, and the dust-producing dispersion is better. The results show that the control of dust particle size distribution and the control of dust production flow have achieved the expected effect, which can provide a stable, reliable and controllable dust source for the research of dust related characteristics test.
【作者单位】：辽宁工程技术大学安全科学与工程学院;矿山热动力灾害与防治教育部重点实验室;
【基金】：国家自然科学基金项目(51204089) 辽宁省教育厅科研项目(L2014131)
【分类号】：TD714.4

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