皮带机的一种安全检测装置

介绍磁力式皮带速度检测器的作用、性能和使用效果。     

某厂皮带机扩建安全优化设计

采用本质安全优化技术对皮带机本体进行设计,提高设备寿命,强化设备安全,降低操作维护故障通过优化设计选用变频调速技术控制料量,使系统配置满足工艺要求,综合指标更为合理。     

一种矿山安全自救逃生 装置的研发

矿山开采过程中,由于地质条件、有毒有害气体超限、不按规程操作等都会引起各种危险发生,严重威胁到矿工的生命安全,针对国内现有矿山安全自救逃生装置的现状,设计出了一种结构简单、操作简便、功能多样化的矿山安全自救逃生装置,通过理论研究,可以达到较好的自救逃生的预期效果。     

浅谈防雷击装置安全技术检测

伴随现代高层建筑、电力、电讯装置的发展，以及油库、液化气站等爆炸危险场所的增多，因雷击所造成的事故也日益频繁。如何保证在用的以及新建、改建、扩建项目中的防雷击装置具备良好的性能，能够在防止雷击事故中起到应有的作用，已经成为当前一个至关重要的问题。而要做到这一点，其中十分关键的环节就是对防雷击装置进行安全技术检测．及时发现问题，及时整改。卞文仅就与检测工作相关的一些技术问题进行一般性的探讨。一、标准和规范毫无疑问，检测工作离不开标准和规范。还应当指出，雷电的历史远远超过人类的历史。就防雷击装置而言…     

胶带输送机的安全检测装置

针对胶带输送机存在的不安全隐患,研制出符合现场实际,切实可靠的安全检测装置.     

某厂皮带机扩建安全优化设计

采用本质安全优化技术对皮带机本体进行设计,提高设备寿命,强化设备安全,降低操作维护故障,通过优化设计选用变频调速技术控制料量,使系统配置满足工艺要求,综合指标更为合理。     

胶带输送机的安全检测装置

针对胶带输送机存在的不安全隐患,研制出符合现场实际。切实可靠的安全检测装置。     

一种安全管理模式的探讨

一些企业的安全工作者正在探索一种新的安全管理模式，即以事故为零的目标，“四全”管理为对策，五项标准为基础，七大保证体系为保证的安全管理模式。     

A research agenda for increasing safety belt use in the United States

On November 13-14, 2003, a symposium on high-visibility safety belt use enforcement in Raleigh, NC: (a) celebrated the 10th anniversary of North Carolina's Click It or Ticket program; (b) documented current knowledge regarding safety belt use; (c) proposed strategies to increase use further; and (d) discussed research to support these strategies.     

回流式皮带机静电除尘罩除尘效率的试验

为了有效控制皮带机转运点的粉尘污染,研发了一种回流式皮带机静电除尘罩。该除尘罩主要由Ω形极板罩、高压放电极和回流风机等构成,通过调节回流风机的流量,可以使微细粉尘在循环流动中被反复净化。因而研究回流率对除尘效率的影响规律是重要的。试验直接采用实物静电除尘罩,试验粉尘采用中位径为4.496μm的石灰粉,用滤膜称重法测粉尘质量浓度,通过回流风机控制回流量大小进行效率对比试验。结果表明:在给定的外加电压下,回流式皮带机静电除尘罩的除尘效率随回流率增加而提高,当电压大于50 kV,回流率ζ=30%时,除尘效率超过90%,但当回流率ζ30%,除尘效率增加趋缓。当初始粉尘质量浓度为102.34 mg/m~3时,在试验条件下改变回流率和电场强度,排放质量浓度最低可达到5.16 mg/m~3,可实现超净排放。     

室内皮带上煤机除尘系统改造设计

针对某公司热电厂皮带上煤机除尘系统所存在的问题,进行了全面的改造设计,取得了良好的除尘效果。     

Connecticut nighttime safety belt use

Problem

Safety belt use in the United States, as measured over daylight hours, has risen steadily over recent years reaching 80% in 2004. Yet, using the National Highway Traffic Safety Administration's (NHTSA) Fatality Analysis Reporting System (FARS), safety belt use among fatally injured front seat outboard occupants of passenger vehicles was only between 42% and 46% for the years 1999 to 2003. One possible contributing factor is that safety belt use at night, when crash rates are highest, is lower than during the day.

Method

A full statewide nighttime belt use observation survey was conducted in 2004. This survey was conducted simultaneously with Connecticut's annual full statewide daytime belt use survey. Night belt use observations of drivers and passengers are possible using newly available near military grade night vision goggles and handheld infrared spotlights. Both day and goggle-assisted night observations were conducted at 100 observation sites in Connecticut. Procedures for day and night observations were as nearly identical as possible.

Results

The night belt use rate was 6.4 percentage points lower than the day rate (83.0 vs. 76.6). Consistent with belt use among Connecticut fatalities, day versus night differences were greatest in urban areas. There was evidence that day versus night differences were greater before as compared to after a May 2004 belt use enforcement program.     

Automatic safety belt use in Michigan: A two-year follow-up

The use of automatic safety belts among motorists throughout the state of Michigan was examined as part of a broader direct observation survey to measure compliance with the state's mandatory belt use law. Use of the most common types of automatic belt systems were measured: the nonmotorized detachable three-point lap and shoulder belt system, and the two-belt system with either a motorized shoulder belt and manual lap belt or a nonmotorized shoulder belt and manual lap belt. Belt use rates in vehicles with and without air bags were also compared. A total of 1,367 drivers and front-right passengers were observed with automatic belt systems between June 1 and July 11, 1992. Use of nonmotorized detachable three-point lap and shoulder belt systems was 72.3%. Lap belt use of motorized shoulder and manual lap belt systems was 70.5%. Lap belt use of nonmotorized shoulder and manual lap belt systems was 60.2%. Of all motorized and nonmotorized shoulder belt and manual lap belt systems observed, 94.5% had the shoulder belts connected.     

A direct observation study of nighttime safety belt use in Indiana

INTRODUCTION: Nearly all direct observation studies of safety belt use are conducted exclusively during daylight hours. Recent work has suggested that safety belt use at night may differ from daytime belt use. METHODS: An observational study of nighttime safety belt use, utilizing specialized night vision equipment, was conducted in Indiana surrounding the Click It or Ticket 2006 safety belt mobilization activities. A pre- and a post-mobilization statewide direct observation survey was conducted at night coinciding with daytime safety belt use data collection conducted by the state of Indiana. Daytime and nighttime belt use rates were compared. RESULTS: The comparisons across the mobilization period revealed a significant increase during the day, but a significant decrease at night. Comparisons between daytime and nighttime belt use revealed no overall difference during the pre wave, but a significant difference during the post wave. Finally, many common daytime trends in belt use were also found at night, with the exception of the typical age and seating position effects. DISCUSSION: The mobilization activities had a positive effect on daytime belt use, but no effect on nighttime belt use, likely resulting in the differences between daytime and nighttime belt use observed during the post wave. IMPACT ON INDUSTRY: The findings of this study suggest that safety belt mobilizations implemented only during the day do not influence nighttime safety belt use. Changes to how these programs are implemented or additional programs specifically targeting belt use at night should be considered, along with continued monitoring of nighttime belt use.     

Employer-based programs to motivate safety belt use: A review of short-term and long-term effects

This article reviews the procedures and results of 28 different programs at nine work settings that increased employees' use of vehicle safety belts from a minimum gain of 12% over baseline to a maximum gain of 285% . A total of 244,543 vehicle observations were made to assess shoulder belt use before. during, and after the various programs. Several program evaluations included follow-up observations from 6 months to 18 months after the safety belt campaign ended. Four basic types of employee programs were compared with regard to both immediate and long-term impact: (a) direct and immediate rewards, (b) direct and delayed rewards, (c) indirect and delayed rewards, and (d) awareness/commitment strategies that involved no extrinsic rewards. Each program was practical for its particular location and substantially increased the use of safety belts by targeted employees. Safety belt use declined markedly when the programs were terminated, but postprogram levels rarely got as low as preprogram baseline. Consistent with theories of intrinsic motivation and minimal justification, the amount of residual impact was greater for those programs that did not involve extrinsic rewards. Five conclusions are particularly important and provocative: (a) Safety belt use at corporations and institutions can be prominently increased by practical cost-effective procedures; (b) significant residual effects of safety belt promotion remain long after program termination; (c) gains in safety belt use can be increased with intermittent programs; (d) further research is needed to determine optimal scheduling of various program strategies for response maintenance and generalization; and (e) the advantages and disadvantages of using extrinsic rewards compared to no rewards for safety belt promotion require additional study.     

Effectiveness of primary enforcement safety belt laws and enhanced enforcement of safety belt laws: a summary of the Guide to Community Preventive Services systematic reviews

BACKGROUND: The use of safety belts is the single most effective means of reducing fatal and nonfatal injuries in motor-vehicle crashes. This paper summarizes the systematic reviews of two interventions to increase safety belt use: primary enforcement safety belt laws and enhanced enforcement of safety belt laws. The reviews were previously published in the American Journal of Preventive Medicine. METHODS: We conducted the systematic reviews using the methodology developed for the Guide to Community Preventive Services. RESULTS: These reviews provide strong evidence that primary laws are more effective than secondary laws in increasing safety belt use and decreasing fatalities and that enhanced enforcement is effective in increasing safety belt use. Increases in belt use are generally highest in states with low baseline rates of belt use. DISCUSSION: Primary safety belt laws and enhanced enforcement programs tend to result in greater increases in usage rates for target groups with lower baseline rates. Concerns regarding public opposition to these interventions may impede their implementation in some jurisdictions. However, surveys indicate that a substantial majority of the public supports implementation of both primary laws and enhanced enforcement programs. CONCLUSION: Based on the strong evidence for effectiveness of primary safety belt laws and enhanced enforcement programs, the Task Force on Community Preventive Services recommended that all states enact primary safety belt laws and that communities implement enhanced enforcement programs.