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Failure Manual

 
SJ single screw extruder General Electric unit to deal with failure：
System Name Phenomenon Reason Approach
Temperature Control System Host of a section of the temperature is too high 1. Cooling system failure (water)
1.1 Electromagnetic valve did not work
1.2Cut-off valve to close
1.3 cooling water pipes to plug the road
2. Cooling system failure (air)
2.1 fan did not work
2.2 fans not to
2.3 small air switch action
3. PLC temperature control or regulation of failure
4. SSR or damage Triac
5. Screw combination of strong cut-off		 1.1 solenoid valve wiring inspections, inspection or replacement of the solenoid valve.
1.2 cut-off valve to open, the right to regulate the flow position.
1.3 cooling water pipes to clear the road.
2.1 check wiring fan, fan inspection or replacement of
2.2 to adjust fan wiring
2.3 small air reset switch
3.1 to amend or PLC-conditioning temperature control parameters, and then observed
3.2Check temperature of or PLC, the replacement of temperature control or PLC module
4. Replacement of solid-state relay or two-way thyristor
5. Portfolio adjustment screw
Host of a section of the low temperature 1. PLC temperature control or regulation of failure
2. Small heater power
3. Cooling system failure (water)
3.1 cooling water temperature on the low side
3.2 Electromagnetic valve spool stuck
3.3 valve open through the Great
4. Portfolio not screw shear
5. Host screw speed on the low side		 1.1 to amend or PLC-conditioning temperature control parameters, and then observed
2. Replacement of large power heater
3.1 cooling water temperature rise after observation
3.2 Cooling water temperature rise of after observation
3.3 check valve and opening-conditioning
1. Portfolio adjustment screw
5. Screw speed will be increased appropriately, and then observed
Host system Automatic parking 1. Cooling fan stopped
2. Lubricating oil pump stops
3. Lubricating oil pressure is too high or too low
4. Melt pressure gauge
5. Governor faults (lack of phase, under-voltage, over-current, overload, overheating, etc.)
6. Host system and other accessory equipment failure of the chain
1. Cease to identify reasons for dealing with the re-start
2. Clean or replace the oil filter
3.1 check melt pressure alarm settings is appropriate
3.2 head replacement filters
3.3 nose temperature is too low
3.4 nose module is to plug holes
4. Manual control governor resolve to deal with, overload, over-current phenomenon should check:
5.1 Host screw it hard to enter foreign body
5.2 host the temperature is set too low
5.3 feed volume is too large, granular feed is too large
5.4 screw components, transmission gear box bearing is damaged
6. To identify the reasons for failure, dealing with the re-start
Feeding System Automatic parking 1. Main Motor stop
2. Governor faults
3. Mechanical failure		 1. Check to deal with some of the host system
2. Manual control governor dealing with the
3. Please machinery, electrical inspection staff to deal with (Feeder whether foreign body, feed particles is too large, whether in the form of Feeder and materials do not match)
Lubrication system Pump not working 1. Did not start
2. Overload
3. Mechanical failure		 1. To identify the reasons for stopping pumps to deal with after the restart to solve
2. Please machinery, electrical inspection staff to deal with
Oil pressure warning 1. Oil off oil
2. Dirty oil filter plugging
3. Set too low oil pressure
4. Lubricating oil viscosity is too high		 1. Please mechanical inspection staff to deal with
2. Clean or replace the oil filter
3. Reset oil
4. Replacement of low-viscosity grade lubricants
Cooling water system Pump not working 1. Did not start
2. Overload
3. Mechanical failure		 1. To identify the reasons for stopping pumps, dealing with the re-start
Cooling water does not pass 1. Pump did not work
2. Solenoid valve is not open
3. Cut-off valve is not open
4. Lack of water tanks
5. Pump intake plug
6. Abnormal pump		 1. Reference to the section on
2.1 Check electrical lines
2.2 check electromagnetic valve replacement or
3. Check valve replacement or
4. Provides water to the water level
5. Clean-up outlet
6. Please machinery, electrical inspection staff
Vacuum system
Vacuum pumps did not work table without instructions		 1. Did not start
2. Overload
3. Mechanical failure
1. Vacuum pumps did not work
2. Road tube condensation can not open the valve
3. Vacuum system leakage
4. Vacuum pump inlet valve is not open or opened too small to spend large
5. I plug the vacuum pump emissions		 1. To identify the reasons for stopping pumps to deal with after the restart to solve
2. Please machinery, electrical inspection staff
1. Reference to the section on
2. Open the valve
3. Please mechanical inspection staff to deal with
4. Water conditioning vacuum pump and open the valve
5. I clean up emissions so smooth

 

SHJ twin-screw extruder General Electric unit to deal with failure：
System Name Phenomenon Reason Approach
Temperature Control System Host of a section of the temperature is too high 1. Cooling system failure (water)
1.1 solenoid valve did not work
1.2 cut-off valve to close the road
1.3 cooling water pipe plug
2. Cooling system failure (air)
2.1 fan did not work
2.2 fans not to switch
2.3 small air movements
3. PLC temperature control or regulation of failure
4. SSR or damage Triac
5. Screw combination of strong cut-off		 1.1 solenoid valve wiring inspections, inspection or replacement of the solenoid valve.
1.2 open valve to regulate the flow to the right location.
1.3 cooling water pipes to clear the way
2.1 fan wiring inspections, inspection or replacement of the fan
2.2 connection to adjust fan
2.3 small reset switch air temperature
3.1 to amend or adjust PLC parameters, and then Observation
3.2 temperature checks or PLC, the replacement of temperature control or PLC module
4. Replacement of solid-state relay or two-way thyristor
5. Portfolio adjustment screw
Host of a section of the low temperature 1. PLC temperature control or regulation of failure
2. Small heater power
3. Cooling system failure (water)
3.1 cooling water temperature on the low side
3.2 solenoid valve spool stuck
3.3 cut-off valve open through the big
4. Portfolio not screw shear
5. Host screw speed on the low side
1.1 to amend or PLC-conditioning temperature control parameters, and then observed
2. Replacement of large power
3.1 heater cooling water temperature increased, and then observed
3.2 cooling water temperature increased, and then observed
3.3 check valve, regulator and opening
4. Adjustment screw combination
5. Screw speed will be increased appropriately, and then observed
Host system Automatic parking 1. Cooling fan stopped
2. Lubricating oil pump stopped
3. Lubricating oil pressure is too high or too low
4. Melt pressure gauge
5. Governor faults (lack of phase, under-voltage, over-current, overload, overheating, and so on)
6. Host system and other accessory equipment failure of the chain		 1. To stop identifying the causes, management resolved to restart
2. To stop identifying the causes, management resolved to restart
3. Clean or replace the oil filter
4.1 check melt pressure alarm settings is appropriate
4.2 head replacement filters
4.3 nose temperature is too low
4.4 nose module to plug holes if
5. Manual control governor resolve to deal with, overload, over-current phenomenon should check:
5.1 Host screw it hard to enter foreign body
5.2 host the temperature is set too low
5.3 feed volume is too large, granular feed is too large
5.4 screw components, transmission gear box bearing damage is
6. To identify the reasons for failure, dealing with the re-start
Feeding System Automatic parking 1. Main Motor stop
2. Failure governor
3. Mechanical failure		 1. Check the host system to deal with some of the
2. Manual control governor dealing with the
3. Please machinery, electrical inspection staff to deal with (Feeder whether foreign body, feed particles is too large, whether in the form of Feeder and materials do not match)
Lubrication system Pump not working 1. Did not start
2. Overload
3. Mechanical failure		 1. To identify the reasons for stopping pumps to deal with after the restart to solve
2. Please machinery, electrical inspection staff to deal with
Oil pressure warning 1. Oil off oil
2. Dirty oil filter blocking
3. Set too low oil pressure
4. Lubricating oil viscosity is too high		 1. Please mechanical inspection staff to deal with
2. Clean or replace the oil filter
3. Reset oil
4. Replacement of low-viscosity grade lubricants
Cooling water system Pump not working 1. Did not start
2. Overload
3. Mechanical failure		 1. To identify the reasons for stopping pumps, dealing with the re-start
Cooling water does not pass 1. Pump did not work
2. Solenoid valve is not open
3. Cut-off valve is not open
4. Lack of water tanks
5. Pump intake plug
6. Abnormal pump		 1. Reference to the section on
2.1 Check electrical lines
2.2 check electromagnetic valve replacement or
3. Check valve replacement or
4. Provides water to the water level
5. Clean-up outlet
6. Please machinery, electrical inspection staff
Vacuum system Vacuum pump is not working 1. Did not start
2. Overload
3. Mechanical failure		 1. To identify the reasons for stopping pumps to deal with after the restart to solve
2. Please machinery, electrical inspection staff
Vacuum table without instructions 1. Vacuum pumps did not work
2. Road tube condensation can not open the valve
3. Vacuum system leakage
4. Vacuum pump inlet valve is not open or opened too small to spend large
5. I plug the vacuum pump emissions		 1. Reference to the section on
2. Open the valve
3. Please mechanical inspection staff to deal with
4. Water conditioning vacuum pump and open the valve
5. I clean up emissions so smooth

Granulation part of the general method of response anomalies：
System Name Phenomenon Causes and treatment
Article pull water granulation φ3 × 3 1. Too small and too rough
2. Particle uneven length
3. Does not end formation
4. Flat particles
5. And Latin America continue to be cut
6. Often be broken		 Granulator to raise or lower the speed limit
feed of the location of the preventing swing around.
adjustment with the knife blade gap will be uniform.
pressure roller pressure, or air pressure adjustment spring pressure.
High temperature materials, appropriate host and increased the distance between the granulator
or increase the fan speed up or cooling water tank.
Non-performing plastic materials or materials are too many impurities.
or screw combinations to consider the suitability of the materials.
Air-cooled eager Granulation φ3 × 3 1. Particle uneven length
2. Particle adhesion
3. Cyclone not expected to
4. Does not end formation		 1. Article hole to plug a local, down, removed the first clean-up mode.
Boot, and so die a uniform material from low-speed
Kai granulator advised to normal speed.
2. Check whether the tool close to mold surface, whether the Bar swing.
High temperature materials, appropriate district configured to lower the temperature. section I of
removed duct elbow, the clean-up in a timely manner and maintain the pipeline open.
cutter grinding or replaced. A few to check whether Cutter at the same time Tiejin face mode.
Central Water granulation 3 spherical approximation 1. Φ uneven length of the particle
2. Particle adhesion
3. Does not end formation		 1. Hole may be blocked.
2. Cutter did not die at the same time Tiejin surface. High temperature materials,
various settings appropriate to lower the temperature. Cutter grinding or replaced.
a few to check whether Cutter at the same time Tiejin face mode.
Underwater granulation
spherical approximation φ3		 1. Particle adhesion and plug the pipeline
2. Dies a non-uniform materials		 1. Die temperature is too high
2. Adjust the speed granulator and water production and host matches
3. Local heating pipe damage.
4. Impurities in the material to plug the hole mode.