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水泥粉磨系统异常处理

2024-06-11

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为了使系统安全、稳定地运行,必须经常检查系统各设备的运行情况,及时判断设备的运转状态、发现设备安全隐患,同时采取适当的处理措施,保证设备健康、安全运行,避免造成设备损坏或其他安全事故。

01 水泥粉磨系统故障处理

水泥粉磨系统常见故障处理如下表:

02 水泥粉磨系统故障与紧急停运

2.1 故障停运

在设备运行过程中,由于设备突然发生电气或机械故障、现场停运按钮误操作等原因,造成设备跳闸,系统中的全部或部分设备将会联锁停运,如连锁不动作,操作员应立即停运相关设备,确保不扩大故障范围和造成事故。故障停运操作步骤如下:

(1) 某台设备因故障而停运(辊压机除外) 时,为防止相关设备受影响,并为重新启动系统创造条件,必须立即停止所有上游设备并联系检修人员检查故障原因,进行紧急处理和调整,下游设备视情况可继续运转,若20min后不能恢复时,按停机要领全系统停运;

(2) 设备故障造成系统连锁跳停时,必须通知现场巡检员将水泥磨慢转,并现场启动风机运转;

(3) 水泥磨喂料机组故障造成断料20min之内不能恢复的应立即停磨,其余设备按正常操作要领停运或继续运转;

(4) 水泥制成系统突然停电时,应立即与电气值班人员联系,启用备用电源,尽快启动各设备的润滑油泵,并要求现场慢转水泥磨。

2.2 紧急停运

在紧急情况下,为了保证人身和设备的安全,应立即使用系统紧急停机开关,联锁停运系统所有设备。为了保证设备能顺利地再次启动,必须采取必要的措施,为系统下次启动创造条件。紧急停运条件如下:

(1) 系统发生故障,严重威胁人身及设备安全时;

(2) 设备轴承温度剧烈上升,已经达到极限,采取任何措施都无法控制时;

(3) 系统内发生严重情况(如水淹、火灾等危险),危及设备安全时;

(4) 某一设备电流超过额定值,通过处理不能恢复时;

(5) 因信号和自动控制失灵而导致润滑系统、水冷却系统发生故障使润滑油温升超过规定值或无法正常供油时;

(6) 设备剧烈振动,有可能造成“飞车” 的危险;

(7) 各处重要联结螺栓发生松动、折断或脱落,危及设备安全时;

(8) 电机内冒火花或明显闻到电机内部有焦臭味及设备轴承冒烟时;

(9) DCS系统停电或死机,短时间内无法恢复时;

(10) 系统内某一设备达到保护跳闸值而未跳闸时。

设备紧急停运后,应对喂料量设定值、选粉机转速、阀门开度等进行调整。如果润滑设备没有故障,应立即启动,慢转水泥磨,并尽快处理、恢复系统运行。处理完紧急情况 ,再次启动时需注意:由于系统在紧急情况下停运,各设备内积存有物料,因此再次启动时,不能象正常情况那样立即喂入物料,要在设备内物料粉磨和输送完后,再开始喂料。

来源:水泥资料公众号

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