Writer： admin Time：2020-07-09 16:34 Browse：℃
| Trouble | Main reason | Method |
| Material on one side |
1 The screen surface is not horizontal 2 The air intake difference between the two sides is too large 3 The boom is twisted and the tilt angle of the boom is inconsistent 4 The tooth angle of the wind deflector is skewed 5 The feeding is uneven laterally |
1 Put a mat under the box on the side with more materials to correct 2 Open the lower maintenance port of the bellows and adjust the position of the fan blades 3 Correct or replace the boom 4 Correct wind deflector 5Adjust the blanking hole |
| Stone on one side |
1 The screen surface is not horizontal 2 The wind deflector is deformed 3 The boom is skewed |
1Put the mat under the screen box on the long side of the stone to correct it 2 Correct wind deflector 3 Correct boom |
| The gravel accumulation area in front of the selection room is too long |
1 The total air volume is too small 2 The reverse wind is too large 3 The angle between the boom and the horizontal is too small 4 The inclination of the screen surface exceeds 10 ° |
1 Increase the air volume or fan speed 2 Remove the selection room and correct the wind deflector 3 reduce flow 4 Put the mat on the bottom of the rear side of the screen box |
| The net material contains too much sand |
1 material on one side 2 The air volume is too large or too small, and the effect of automatic material classification is not good 3 The reverse wind is too large 4 Environmental vibration 5 The inclination of the screen surface exceeds 10 ° 6 Excessive flow 7 The air deflector is clogged 8 The screen surface for stone removal is worn |
1 Make the material even 2 Correct air volume or increase fan speed 3 Let the wind out at stone outlet 4 Eliminate environmental vibration 5Put the mat on the bottom of the screen box 6 Control the flow 7 Clean wind deflector 8 replace in time |
|
Too much grain in the gravel |
1 Excessive wind in front of the equipment is too high, and the reverse wind of the selection room is too small 2 The total air volume is too small or the wind deflector is packed with impurities 3 The bearing of the boom is seriously worn, the foundation is not firm, and the screen box vibrates 4The installation of the machine body is uneven, so that the inclination angle of the screen surface is reduced |
1 Adjust the curved plate of the selection room or open the large board to increase the reverse wind force 2 Correct the fan speed to prevent the belt from slipping or opening the damper to remove impurities 3 Replace the boom bearing to reinforce the basic connection 4 Correct the machine body so that the screen surface has the proper inclination |
|
Body vibration |
1 Excessive vibration frequency 2 uneven ground 3 parts loose 4 Impeller unbalance |
1 Correct the frequency and check whether the screen body and the screen box collide 2 Reinforcement foundation 3 Check, replace or tighten the screws 4 Adjust the blade to maintain balance |
|
Poor stone discharge |
1 The total air volume is too large 2 The reverse wind is too large 3 Insufficient vibration frequency of the sieve 4 The mesh is blocked by impurities 5 The angle between the boom and the horizontal is too small |
1 Turn the damper down or reduce the fan speed 2Recycling the curved plate of the selection room 3 Test the rotation speed and tighten the transmission belt 4 Clean up impurities on the screen surface 5 Replace or lengthen the connecting rod screw |
|
Unable to start or small amplitude |
1 The motor is damaged 2 The electrical components in the control circuit are damaged 3 Insufficient voltage 4 Too much material accumulation on the screen surface |
1 Replace the motor 2 Replace electrical components 3 change the power supply 4 Clean the material on the screen surface |
|
Abnormal material flow |
1 The stiffness of the screen box is insufficient, and there is a critical frequency 2 The horizontal level of the screen box is not accurate 3 Broken screen surface 4 Feeding is extremely unbalanced 5 The hopper is blocked |
1 Tighten connection bolts and bearing bolts 2 pinpoint horizontal level 3 Replace the screen surface 4 Balanced operation, stable feeding 5 Clean up impurities in the hopper |
|
Poor stone removal effect |
1 Clogged mesh 2 Fine particles increase in the screened material 3 Increased moisture content of screened material 4 Uneven feeding of screen machine 5 The material layer on the screen surface is too thick |
1Reducing the load of the screen machine and cleaning the screen surface 2 Change the inclination of the screen box 3 Method ibid 4 Adjust the feed of the screen machine 5 Reduce the feeding of the screen machine |
|
The rotation of the screen machine slows down during normal operation, and the bearings become hot |
1 grease 2 Bearing clogged 3 Excessive oil filling of bearings or adding unsuitable oil 4 Bearing damaged or poorly installed 5 The eccentric block on the round wheel falls off |
1 Fill the bearing hole with grease 2 Clean the bearings and replace the seals 3 Check the lubricant of the bearing 4 Replace the bearing and reinstall 5 Install the eccentric block and adjust the normal gap |
|
Abnormal noise |
1 The tightening bolt is loose 2 Beam break |
1Tifhten bolt 2 Change beam |
|
Bearing temperature is too high |
1 Insufficient grease 2 Too much grease 3 Grease is dirty and deteriorated 4 Bearing damage |
1 Increase grease 2 Reduce grease 3 Replace with new grease after cleaning 4 Replace the bearing |
| Damaged components such as side plates and beams |
1 Serious damage to components 2 Working time is too long at the critical frequency |
1 Smoothing, drilling or welding 2 Method ibid |
| Abnormal sound of idling fan | 1. Check for foreign matters in the bellows | 1 Lay the stone remover sideways and open the inspection port under the fan to check。 |
| Good grain out of the small miscellaneous position |
1 The size of the sieve plate is not suitable 2 Damaged sieve frame |
1 Replace the appropriate screen 2 Maintenance sieve frame |
Phone/WhatApp: +86 18903893449
WeChat: +86 18903893449
Email: doudoumachinery2020@gmail.com
Add: Construction Technology Industrial Park, Jiefang District, Jiaozuo City, Henan Province, China