2013年11月22日星期五

Belt Conveyor procedures

Today, we are concerned about the operation of the belt conveyor processes. Give you a better to take advantage of the belt conveyor , while ensuring our safety.
I. Preparation and inspection before starting
1 , from start to finish before starting the belt conveyor respond to undertake a detailed examination , the main Weight Sorter check the contents :
( 1 ) Check the belt Roadway situation , whether out of the gate , spalling , roadway deformation and so on.
( 2 ) the tensioning device is good.
( 3 ) whether the belt is pulled , the belt connectors for good .
( 4 ) In addition to the coal unit is easy to use , the oiling points , oil fuel is qualified.
( 5 ) ministries screws are tightened.
( 6 ) whether the Flat belt conveyor belt idler fall, and rotation of the upper and lower rollers .
2, the test signal devices belts , receive clear.
Second, the start and operation of the belt
The operating system can be divided into programming, manual, automatic , three mode of operation, the choice of work and work by changing the operation mode switch to achieve.
1, the automatic mode
Recommended to use this device , in this way , PLC involved in monitoring and control, to achieve perfect control and protection functions .
First, the power switch on the console hit the "on" position in the work on the console mode switch is set to " Auto" position and the motor , manual switch lever spoon hit the

"on-line " position. In the console , press the "on" button, as the system is

Constant ( ie, no parking failure ) , enter the notice states ( Note : Active communication signal to a bell , so every time before driving electric bell RBI before driving. )
a, notice states: First, start issuing warning signal , RBI signal loud, notice 15 seconds delay , whether the simultaneous detection spoon stick to the low , if not then spoon

stick to the low load shedding . Coming 15 seconds after the time to stop the trailer and into the disengaged state.
If it fails, the system is not allowed to drive, and not the start advance notification .
Note: The current communication signal to the bell , so every time you drive, hit points , and then to drive.
b, brake release states: After entering the disengaged state , if the rod is still less than the low spoon , then spoon rods continue shedding , low level within 5 seconds if

the failure is reported spoon bars Lowered ; If the low or within 5 seconds low brake is issued to start, two seconds after detecting brake is turned on , if the test

Less than pine gate status is reported loose brake failure ; when brakes are open, go to the start state.
c, start state : the control of the main motor starts 3 seconds after the detection of the main motor is started successfully , if successful, according to the situation at the

main motor failure. If successful startup has begun spoon rod loaded. Control unit in accordance with the plus one second , 2 seconds of time control spoon rod loaded. Within 75

seconds if the spoon rod

To comfort you enter the running state, if the time is still not reach the high bar spoon is reported high failure.
d, normal operation : input speed sensor that detects slip by software to determine whether the slip.
2 , manually
In manual mode, the first stage of the operation hit the power switch "on" position , operating mode switch to play in the " manual" position , tape machine manual switch hit

the "stop" position, this time from the PLC only monitoring role, it is mentioned as an alternative way of working

Supply to the users .
The steps are as follows:
a, notice : According to the console of the " dot " button to RBI liaison across the board start notice . ( Note: The current communication signal to a bell , so every time

before driving electric bell RBI before driving. )
b, loose brake control : the motor manually switch to " brake release " position to start the brakes .
c, the main motor control : the motor manually switch from " loose brake" position to the "Motor " position , the main motor starts.
d, spoon rod load control : first spoon lever manual control switch hit "Load " position, start loading lever spoon , until the rod is loaded into the high back spoon ( spoon

rod high on the console lights ) , belt put into normal operation , the whole process is finished car .
Third, stop:
1 , belt conveyors normal stop
When the driver receives a stop signal down one by one according to the downstream direction , the steps are:
First spoon lever manual control switch hit " load shedding " position, spoon rod load shedding ; until spoon stick to the low load shedding after ( console spoon bars Lowered

lights ) , the motor manually switch from " motor " position switch to " brake release " position , stop the main motor running ; pending tape machine

Speed ??drops below a certain speed or less, the motor manually switch from " loose brake" position to the "stop " position, brake brake . The entire parking process is

completed.
2, the belt conveyor emergency stop
The steps are as follows:
First motor manual switch from the "motor " position to the " brake release " position , stop the main motor running ; spoon in the manual control lever switch hit " load

shedding " position, spoon rod load shedding ; been waiting spoon rod Less set to the low post ( console spoon rod low light ) ; until the glue

With a machine speed drops below a certain speed or less, the motor manually switch from " loose brake" position to the "stop " position, brake brake . After the entire parking

process .

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