common fault analysis and processing -- Pulverizer
Monday, February 18, 2008 in Pulverizer
Pulverizer system is the feed mill feed from the main equipment of the mill operation of the efficiency and reliability of the direct production process behind the normal operation, and maintenance and operator Institute analysis and processing mill common fault system, and be ruled out in the short-term, to resume production as soon as possible, it becomes important of the other. Pulverizer system includes mill and electrical. Corresponding fault can be divided into mechanical failure and electrical fault. Following is the breakdown of machinery and vibration, heat and mill bearing failures, such as plug-in the analysis.
1, the general vibration mill motor directly connected to smash devices, such connections simple and easy maintenance. But if in the process of assembling the two can not be good connections, it will cause the overall vibration mill.
(1) mill motor rotor and the rotor different heart. Can be left and right movement of the motor position, or at the end of the motor at the foot of a padded to adjust two rotor concentricity.
(2) mill rotor different heart. The reason is that the rotor shaft with palm support of the two is not the same plane. In the bottom pad bearing housings Tongpi or bearings to increase the bottom of the adjustable wedge iron, guaranteed by the first two concentric axis.
(3) Vibration smash some larger room. The reason is that the coupling connection with the rotor or rotor different heart-Hammer internal quality uneven. According to different types of coupling methods corresponding to the whole down-coupling and the electrical connections: When the hammer of uneven quality, have to be re-matching each hammer, the hammer relative said, the relative said Hammer G-error is less than 5.
(4) the destruction of the original balance. Motor repairs to be done after the balancing test to ensure that the overall balance of the horse.
(5) Anchor Bolt System grinder or loosening a solid foundation, in accordance with or repair, it is necessary to evenly Retention Anchor Bolt, in the legs between the foundation and shredders, with cushioning devices, reducing vibration .
(6) hammer to smash or break indoor hard debris. All these will cause rotation of the rotor imbalance caused complete machine vibration. Therefore, in order to periodic inspection, wear the hammer. The replacement, it is necessary to replace the symmetry; mill operation in the abnormal voice immediately stands to check on the reasons for the timely processing.
(7)mill system and other equipment connected do not fit. For example, feed tubes, such as a cylinder connected properly, would be made sound and vibration shipped. Therefore, the Department of connectivity, not hardware connection, the best use of soft connectivity.
2, the mill bearing overheated bearing on the more important parts, the performance of a direct impact on the normal operation of the equipment and production efficiency. In the operation of equipment, users should pay special attention to the rising temperature bearings and bearing parts of noise, abnormal to be tackled early.
(1) two rugged housings, with the mill motor rotor or rotor different heart, will be bearing the impact of the additional load, which led to overheating bearings. Such a situation, we must immediately downtime troubleshooting, in order to avoid bearing the early damage.
(2) Bearing Lubricant too many or too few aging is caused damage to the overheated bearing the main reason, therefore, according to the requirements on time and the use of the use of quantitative endorsement lubricants, general lubrication of the bearings space of 70% -80% , not too much or too little to bearing lubrication and heat transfer. Bearing extending its life.
(3) bearing caps and with the hard shaft, bearings and shafts with too tight or too loose will Reply bearing overheating. One such problem occurred in the operation of equipment will be issued friction sound and significant swing. Bearing downtime should be removed. Dressing friction parts, and then re-assembled as required.
3, shredders plug plug grinder mill use is common fault of the equipment design may have existed on the issue, but more due to the use of improper operation.
(1) Feed excessively high speed, load increased, causing blockage. In the feed process, we should always pay attention to ammeter pointer Pianzhuaigudu, if more than the rated current that the motor overloading and long overload, motor will burn. This situation should be immediately shut down or reduced materials doors, can change the feed, increase the feed-through into the feed to control. Feedstock for a manual, automatic two, users should choose a suitable light of the actual situation of the feed. As high-speed grinder, load, load and the volatility of the strong. Therefore, the current mill work in the rated current general control of about 85 percent.
(2) the expected pipeline miscommunication or plug feed fast, and will mill outlet plug; and distribution equipment matching improper discharge pipe will cause wind or no wind weakened after blocked. Fault found, it should first send--mouth does not match changes in the delivery of equipment, adjusting feed Jin-Jin, the normal operation of equipment.
(3) hammer clips, the aging screen hole closed, broken, crushed materials will be too high to mill water plug. Should be updated regularly broken and serious aging hammer, and maintain good working condition mill, and regular inspections screen, and smash moisture content of the materials should be less than 14 percent, this move will improve production efficiency, and also allows the mill not plug and enhance the reliability of grinder. You want to you by the press responsible for the consequences, so please pay attention to language and civilization for discipline and the law.
1, the general vibration mill motor directly connected to smash devices, such connections simple and easy maintenance. But if in the process of assembling the two can not be good connections, it will cause the overall vibration mill.
(1) mill motor rotor and the rotor different heart. Can be left and right movement of the motor position, or at the end of the motor at the foot of a padded to adjust two rotor concentricity.
(2) mill rotor different heart. The reason is that the rotor shaft with palm support of the two is not the same plane. In the bottom pad bearing housings Tongpi or bearings to increase the bottom of the adjustable wedge iron, guaranteed by the first two concentric axis.
(3) Vibration smash some larger room. The reason is that the coupling connection with the rotor or rotor different heart-Hammer internal quality uneven. According to different types of coupling methods corresponding to the whole down-coupling and the electrical connections: When the hammer of uneven quality, have to be re-matching each hammer, the hammer relative said, the relative said Hammer G-error is less than 5.
(4) the destruction of the original balance. Motor repairs to be done after the balancing test to ensure that the overall balance of the horse.
(5) Anchor Bolt System grinder or loosening a solid foundation, in accordance with or repair, it is necessary to evenly Retention Anchor Bolt, in the legs between the foundation and shredders, with cushioning devices, reducing vibration .
(6) hammer to smash or break indoor hard debris. All these will cause rotation of the rotor imbalance caused complete machine vibration. Therefore, in order to periodic inspection, wear the hammer. The replacement, it is necessary to replace the symmetry; mill operation in the abnormal voice immediately stands to check on the reasons for the timely processing.
(7)mill system and other equipment connected do not fit. For example, feed tubes, such as a cylinder connected properly, would be made sound and vibration shipped. Therefore, the Department of connectivity, not hardware connection, the best use of soft connectivity.
2, the mill bearing overheated bearing on the more important parts, the performance of a direct impact on the normal operation of the equipment and production efficiency. In the operation of equipment, users should pay special attention to the rising temperature bearings and bearing parts of noise, abnormal to be tackled early.
(1) two rugged housings, with the mill motor rotor or rotor different heart, will be bearing the impact of the additional load, which led to overheating bearings. Such a situation, we must immediately downtime troubleshooting, in order to avoid bearing the early damage.
(2) Bearing Lubricant too many or too few aging is caused damage to the overheated bearing the main reason, therefore, according to the requirements on time and the use of the use of quantitative endorsement lubricants, general lubrication of the bearings space of 70% -80% , not too much or too little to bearing lubrication and heat transfer. Bearing extending its life.
(3) bearing caps and with the hard shaft, bearings and shafts with too tight or too loose will Reply bearing overheating. One such problem occurred in the operation of equipment will be issued friction sound and significant swing. Bearing downtime should be removed. Dressing friction parts, and then re-assembled as required.
3, shredders plug plug grinder mill use is common fault of the equipment design may have existed on the issue, but more due to the use of improper operation.
(1) Feed excessively high speed, load increased, causing blockage. In the feed process, we should always pay attention to ammeter pointer Pianzhuaigudu, if more than the rated current that the motor overloading and long overload, motor will burn. This situation should be immediately shut down or reduced materials doors, can change the feed, increase the feed-through into the feed to control. Feedstock for a manual, automatic two, users should choose a suitable light of the actual situation of the feed. As high-speed grinder, load, load and the volatility of the strong. Therefore, the current mill work in the rated current general control of about 85 percent.
(2) the expected pipeline miscommunication or plug feed fast, and will mill outlet plug; and distribution equipment matching improper discharge pipe will cause wind or no wind weakened after blocked. Fault found, it should first send--mouth does not match changes in the delivery of equipment, adjusting feed Jin-Jin, the normal operation of equipment.
(3) hammer clips, the aging screen hole closed, broken, crushed materials will be too high to mill water plug. Should be updated regularly broken and serious aging hammer, and maintain good working condition mill, and regular inspections screen, and smash moisture content of the materials should be less than 14 percent, this move will improve production efficiency, and also allows the mill not plug and enhance the reliability of grinder. You want to you by the press responsible for the consequences, so please pay attention to language and civilization for discipline and the law.
Related Article
