1) cold blast sliding valve
冷风阀
2) blow down valve for cold air
冷风放风阀
1.
was affected due to blockage of blow down device of 1600/600 blow down valve for cold air,Based on analysis and investigation,technical transformation was made on the piston ring, piston and shaft sleeve.
马钢 2 5 0 0 m3 高炉 16 0 0 / 6 0 0冷风放风阀放风装置卡阻 ,影响高炉休复风操作。
3) valve cooling system
阀冷
1.
Basic analysis on the valve cooling system's switching control problem of Zhaoqing converter station,Gui-Guang HVDC project
贵广直流肇庆换流站阀冷切换控制系统浅析
4) air valve
风阀
1.
Application of SKT - 14 numerically - controlled air valve jig;
SKT-14型数控风阀跳汰机的应用
2.
The paper redesigns the control of numerical control air valve of jigging machine for coal cleaning equipment by using LG PLC controller and touching screen.
本文采用LG可编程序控制器及触摸屏对洗选设备中的跳汰机数控风阀控制进行重新设计。
3.
To counter the difficulty in lubricant addition into the jig's air valve system with triple air sources and the disadvantage of frequent stoppage and large volume of maintenance work required, and taking consideration of advantage and disadvantage of similar facility, both domestic and aboard, developed was a new automatic lubrication facility composed of home made elements.
针对跳汰机风阀系统气源三联体加油困难、故障率高和维护量大等缺点 ,结合国内外同类装置的优缺点 ,采用国产元件研制出新型跳汰机风阀自动加油润滑装置 ;该装置可完全达到进口同类装置的效果 ,实现跳汰机风阀全自动不间断加油润滑功能 ,进一步提高了跳汰机的单机自动化程
5) air-valve
风阀
1.
This paper mainly introduces how to control jigger air-valve fuzzily based on a way to monitor the loose condition of bed layer, so the air-valve parameters are self-modified, and the wind volume is controlled, as a result we can optimize the layer of jigging bed.
本文主要介绍了一种在洗煤厂用的床层松散度的检测方法,并以此为基础对跳汰机风阀进行模糊控制,以达到自动调节风阀参数,控制风量大小,从而实现对跳汰床层分选优化的效果。
2.
As the key device of jigger, the reliability of electromagnetic air-valve affects the function of the whole machine, and the automatic control of air-valve is the important part of the automatic control of the jigger.
电磁风阀作为跳汰机的关键设备,其工作可靠性直接影响到跳汰机的整机运行,其自动化控制是跳汰机整机自动化的重要组成部分。
3.
The auto -control of air-valve is a difficult problem in the jigger control project, the capability of the auto-control of air-valve affects the delamination of the coal bed directly.
风阀自动控制一直是跳汰机控制的难点,而风阀控制性能的好坏直接影响着床层的分层效果,因此,对风阀控制的研究尤为重要。
6) wind valve
风阀
1.
A wind valve adjustment mode of convector radiator that is suited to individual metered heating system is put forward.
提出了一种适用于分户计量采暖系统的对流型散热器的风阀调节方式。
补充资料:放风阀噪声控制
放风阀噪声控制
noise control of vent valve of gas emission
不同,可以是亚声速喷注噪声或是声速喷注噪声。图1为一座中型高炉的放风阀放风噪声频谱。 130「一一一----一~一-门 《1 In仁~/月产、、! 闷‘v川」rz口l 31.5 63 125 2505(X) 2000 8000 f/Hz 图l高炉放风风阀噪声频谱 1一放风金小于lo00m3/mln、距喷口lm处实测嗓声级; 2一放风量大于10。。m3/min、距喷口Iln处实测嗓声级 基本控制措施控制这种喷注噪声的方法是在放风阀出流口上安装放风阀消声器。中国冶金工业部建筑研究总院针对中国高炉的不同情况,研制了与之配套的各种放风阀消声器,并已在冶金系统广泛使用,效果显著,消声量达45dB(A)以上,并且放风阻力小,对高炉正常生产没有任何不良影响,寿命长,能达一代炉龄。这种放风阀消声器是一种复合式消声器,由小孔喷注消声段和阻性消声段组成(图2)。{-簇鉴华_: 一61-一-一一 图2高炉冷风放风阀消声器 小孔喷注筒上开有似一4mm的小孔群,它能起到将噪声能量向超高频方向移动的作用,使大部分声能移至超声范围而达到消声的目的。此外,喷注筒还能起到降压和扩散气流的作用,使气流能分散均匀地通过上面的阻性段截面,使阻性段的消声效果能充分发挥。而阻性段对中高频噪声又有较好的消声效果,两者结合使这种消声器有较高的消声量。 除上述消声器外,中国与其他国家尚有根据小孔喷注、节流降压等原理设计的其它类型的高炉放风消声器。 (陆永年)fongfengfO Zaosheng kongZhl放风阀噪声控制(noise eontrol of vent valveof gas emission)把高炉放风阀在排气放空时产生的喷注噪声保持在一定范围内的技术措施,是炼铁噪声控制的主要组成部分。 嗓声特点高炉放风阀主要指冷风放风阀和鼓风机放风阀,它们都处在高炉鼓风和供风系统,其放风噪声,是钢铁企业中强烈的噪声源之一。特点是声级高、频带宽、传播距离远。噪声级约达110一140dB(A),属于喷注噪声。按照鼓风机的工作特点和放风阻力的
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