At present the belt conveyor speed faster, once happened tape tore his accident, only on belt conveyor driver and its patrol researchers found that processing is not enough. One is mine belt conveyor working environment is poor, such as coal dust big, dark, tape it has such as coal, the factors affecting the man's judgment and response. The other reason is sometimes not only occurred in the driver's tear attendant position,Limestone dryer and we also can't demanding belt conveyor belt from staff eyes moment. Therefore, only by belt conveyor patrol staff to avoid tape cuts or rent, is not realistic. And once the accident happened and, if not handled in time, can cause serious consequences. Perfect installation reliable tape tore his protection is basic.
According to the current mastery of conveyor belt dryer, the domestic tape tore his protection device basically has the following kinds.
1,china jaw crusher ZS1-G inductive longitudinal tear the detector
In the tape by a certain intervals to install closed-circuit coil to coil is in good condition judgment tape is occurring vertical tear, can choose the coil type embedded joint on the tape or tear will embed in the tape of coil.
From the influence of foreign body position placement, along the chute of falling foreign body no matter what position of the tape by not affect the tear function.
Article 1 the tape in set a few check points, so as to achieve the best of the rent effect.Vibrating screen
ZS1-G inductive longitudinal tear detector is currently the most effective tape to see the tear protection device, but should increase the density of the check points.
But the device to use special adhesive tape, invest more, should consider whether the existing tape by other means setting coil.
2, the tear detection tape machine
Its principle is also based on the idea of ZS1-G, is only a single added a testing tape, detection with principle of work again, with the tape to the test, when the tape again after testing with tear tear,Wet magnetic separator through the detection device, control the host stop.
The device should be another laid a detection belt, belt conveyor by installation space restrictions, check points can only limited one region.
3, the Ann model the tear sensor
This device installed in the near to coal on tape at the tape in the process of drift, happen when torn tape, coal fell to the device, when the pile of to a certain height, through the exterior of the device and electrode, the output signal warning and emergency stop.
This device can effectively detect and processing to coal near tape tear (tape was torn through fall coal) accident, to happening in other sites of accident or tape only be scratched or accident tearing through early although tape, but also not fall coal undetectable.Spiral classifier price I mine in five by four subcutaneous luck installed on the belt conveyor, but basically did not work. But to tear the belt conveyor serious accident has certain protective effect.
4, ZFA type automatic non-contact and tear device
ZFA type automatic non-contact, crack the device is applicable to DT type II, the DX type, etc. Various kinds of bandwidth of conveyor, the product in guide material slot withrotary dryer supplier and flashing alarm boxes, once a sundry be guide material slot gets stuck, namely the automatic alarm and downtime,Rotary kiln to prevent sundry direct wear out adhesive tape, roller group in the middle tear resistance ask board, effectively protect the machine tape safety.
But to be stuck to the good thing, funnel coal, causing the tape tore his helpless.
5, SL longitudinal tear switch
In the tape appeared because tear, and danced, junction damage or sharp objects bulge tape, tore his switch to monitor can provide alarm signal or turn off the conveyor.
Tear switch installed on both sides in pairs, the two paragraphs of wire rope ethylene coat aviation joined up. One end of the rope permanent solid in support brackets on the set, and the other end connection in the tear the lift ring on the switch. Two paragraphs in the strings to form a tape of the closed loop, as an object or torn tape hanging down,Rotary dryer sweeps the one or two strings that detect malfunction. For strings under the effect of stress, it's the axial outside but pulled out by oneself handle up bounces, this time of two micro switch alarm or turn off the conveyor. Faults remove will handle the sales to make machines camshafts reset to boot.
Tape longitudinal tear, few tape hanging down, tear of the tape is not the object was suspended, and to tape the scratch is powerless.
6, JZB belt conveyor series of comprehensive protection device
The tape longitudinal rent, occurs in fall coal in the mouth, when a foreign body jam falls coal mouth, foreign body to tape and export plugging plate stress, when pressure to a certain value, they can cause tape longitudinal tear.
This device that the biggest characteristic of: when is likely to cause damage on tape when coal stop, prevent tape longitudinal tear. The device for large objects into coal feeder, funnel, cause to coal mouth jam, cause has certain protective tape tear.
3 belt conveyor and improve the quality of personnel patrol driver and sense of responsibility, is to prevent the guarantee of longitudinal tear tape
In addition to strengthen the work of belt conveyor staff training, improve the quality and strengthen the responsibility education, according to the belt conveyor staff working conditions, need the energy of the high concentration of actual condition, should shorten their work time, especially the fuarding personnel working time.
4 perfect belt conveyor system monitoring system
Improve the monitoring of spray dryers, surveillance range should be able to cover the entire adhesive tape transportation system, should strengthen key sections are testing, such as to coal points, etc.