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加强螺旋输送机年关检查工作

文章来源:郑州赛德斯机械 发布时间:2017-01-19 浏览次数:
为确保螺旋输送机安全运行而设计的电气控制装置.螺旋输送机以其结构简单,横截面积小,便于密封,可多点加料卸料等优点越来越广泛 地被应用于各种工业部门进行散料输送.目前,螺旋输送机制造厂通常不提供输送机控制用的屯气设备.而无沧是作为散料输送系统的一个环节,还是单独使用的’螺旋输送机,为确保其安全运行,必须有一套电气控制装置. ,电气控制装置的要求根据螺旋输送机运行的特点,对螺旋输送机的电气控制装置有下列要求;
The electrical control device designed to ensure the safe operation of the screw conveyor screw conveyor. With its simple structure, small cross-sectional area, which is convenient for sealing, multipoint feeding and discharging the advantages of more and more widely used in various industrial departments. The current conveyor, screw conveyor manufacturers generally do not provide conveyor control Tun gas equipment. Without is Cang as part of a bulk material conveying system, screw conveyor or "used alone, in order to ensure its safe operation, there must be a set of electrical control device, electrical control device according to the requirements of the characteristics of spiral conveyor, electric control device of screw conveyor has the following requirements;
1, 短路保护.是为了避免因驱动电机绕组或线路发生故障而造成短路对电气设备的损坏.
1, short circuit protection, in order to avoid damage to the electrical equipment due to the drive motor winding or line failure caused by short circuit
2,超载保护.当输送机因进料过多, 外来物品或过大的块料等造成超载时,应能切断动力输入,使输送机停机.
2, overload protection. When the conveyor due to too much feed, foreign goods or too large blocks of material caused by overloading, should be able to cut off the power input, so that the conveyor shutdown
3,无速保护.在可能发生电源电压消失,输送机停机的任何事故时,切断电源.
3, no speed protection. In the case of possible power supply voltage disappear, conveyor shutdown, cut off the power supply
4,紧急停止开关.在必要时容易接近 的位置切断电源,以阻止事故的发生.
4, emergency stop switch. Cut off the power supply when it is necessary to cut off the power supply
5,电气联锁.在输送机与给料装置之间启动和关闭的顺序应该是先启动输送机再启动给料装置,关闭了绐料装置才韫关闭输送机.这个顺序关系应由电气联锁来实现.
5, electrical interlock. The conveyor should be with the feeding device between the startup and shutdown of the order is the first start and then start the conveyor feeding device, feeding device can give off "closed conveyor. This order shall be borne by the relationship between electrical interlock to achieve.
6,信号装置.螺旋输送机输送长度可达70 米,因此在紧急启动之前,应先警告人们注意,以确保操作人员和场地工作人员安 b.作为超速保护和同步投入的速度继电器要求的精度和灵敏度较高.而这条胶带机 所采用的速度继电器还达不到我们的要求, 这样就要求我们寻找一种新型的速度继电器代换现有的速度继电器. .这条胶带机的动力制动电流基本是一个恒定值.而出现负转矩的值实际是一个变化的值,因此最好用一个可变的自动调节的动力制动电流来代替恒定的电流.这样可以根据负转矩的大小自动调节翩动力矩大小.
6. The spiral conveyor device, signal up to 70 meters in length, so the emergency start before, should first warn people, to ensure that the operating personnel and ground staff B. as overspeed protection and synchronous input speed relay requires precision and high sensitivity. The speed of the relay and this tape machine used is not up to our requirements, this requires us to look for a new type of speed relay replace the existing speed relay. The dynamic braking current conveyor is basically a constant value. While the negative torque value is actually a variation of the current value, so the best dynamic braking current automatic adjustment of a a variable instead of a constant. This can be adjusted automatically according to the size of the negative torque model of dynamic torque.
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