TJIT vibrating screen has the advantages of stable reliability, less consumption, low noise, long life, stable mode and high screening efficiency, and is simple in structure and easy to install. Therefore, it is widely used in mines, coal, smelting, building materials, refractories, light industry, chemical, pharmaceutical, cement and other industries.
The vibrating screen uses the two motor to synchronize the reverse rotation to make the exciting force of the vibration exciter, and drive the sieve to drive the sieve plate to do the longitudinal motion, so that the material is subjected to the exciting force and is thrown forward periodically, thus the screening operation of the material is classified, degashed, dehydrated and removed.
At present, there are many kinds of screening equipment used in China, and there will be many problems in the process of design, manufacture, installation and user use. In addition to some mechanical faults, abnormal operation parameters and improper maintenance have caused the reduction of the screening efficiency of sieves, and even the fatal problems such as the sieve body, the base of the vibrator, the beam fracture, the bearing damage and so on.
1, there are many reasons for the abnormal operation of vibrating screen. Generally speaking, there are several situations:
(1) abnormal sound at the vibrator and overheating surface;
(2) the sieve plate is damaged or loosened or the sieve bar breaks, resulting in repeated vibration or mixing.
(3) the shock spring is broken frequently;
(4) single motor operation or double motors are not parallel or parallel but not in reverse operation.
(5) the working frequency of the screening machine is the same as that of a fixed frequency.
(6) the installation of the sieve is incorrect and the foundation is uneven.
(7) the center distance between the exciter shaft and the drive shaft deviates too much;
(8) the excitation force deviates from the center of gravity of the sieve body;
(9) the assembly of the exciter or vibrating motor is incorrect, and the angle between the two sets of counterweights is inconsistent.
(10) uneven feeding resulted in partial load and poor discharge of raw materials.
Due to the complexity of the work site, before the analysis of the reasons for the analysis of the use of equipment, whether there are illegal operations or improper maintenance, maintenance is not timely. According to the principle of simplest and later difficult, first simple and later propagation, after the first clear and later dark principle, the reason is eliminated by item by item, so as to solve the problem thoroughly, and finally achieve the purpose of safe, economic and long-term effective operation.
