This step is also a very important link to effectively prevent the belt from deviation. In a vertical roller mill equipment, there are several rollers, and the installation position of each roller and the center position of the movement direction of the length of the vertical roller mill should be in a vertical state. If it is not in a vertical state and the deflection is very large, then there will be…

The installation sequence of vertical roller mill should be the first to install the head frame, then the middle frame of each section, and finally the tail frame. Before installing the frame, the center position of the conveyor should be determined first, and all the working operation centers of the conveyor should be in a straight line.

In the process of installing each frame, the longitudinal…

The output of vertical roller mill often throws out ungrinded crushed stones, and the amount is relatively large, which not only increases the power consumption of grinding materials, but also increases the labor intensity of personnel. So what is the reason for this phenomenon?

The particle size of imported material is too large, resulting in insufficient output of vertical roller mill and stone…

The scraping range of hollow shaft bearing shells of vertical roller mills in smelters should be controlled at contact angle less than 35 according to the actual production requirements Below, it also needs to scratch clearance on both sides.

The spot distribution of contact should be distributed evenly and evenly along the whole length of bus, and there should be no excessive imbalance. The distance…

Bearing bush is the key part of vertical roller mill. The problem often occurs is that the temperature is overheated, which leads to the performance disorder. Generally speaking, its complexity mainly involves the following conditions:

In view of the typical faults encountered in the production of vertical roller mill, this paper analyzes the causes in detail and gives the targeted technical…

The electric roller is divided into internal electric roller and external electric roller. The main difference is that the built-in electric roller motor is installed inside the roller, and the external electric roller motor is installed outside the roller and rigidly connected with the roller.

The built-in electric roller motor has poor heat dissipation, and is generally used in the ultrafine…

The quality of seal structure design is related to the effect of seal and the life of seal ring. The sealing effect of the O-ring depends on the correct size of the mounting groove. The installation groove of the sealing ring is too deep, the compression of the sealing ring is not enough, so the sealing structure should be designed and processed reasonably to ensure the good sealing performance of the sealing device.

Install the sealing ring correctly to ensure the good sealing of the…

Prevent the equipment temperature from rising too high. If the working temperature of vertical roller mill is high, it is easy to cause plastic deformation of the liner under the impact and grinding of the material. Therefore, the lubrication of the equipment should be done well to reduce the phenomenon of too high temperature rise of the equipment and the plastic deformation of the lining plate.

The…

Large amount of Cement standard consistency water demand, the more cement paste to achieve the standard consistency of water consumption, the more cement mortar to achieve the required flow of water, and cement concrete to achieve a certain amount of slump water consumption are also larger, so the greater the water-cement ratio of mortar and concrete, the more space between the particles, the smaller the density, the cement and its concrete construction performance, mechanical properties and…

Ultrafine vertical mill is widely used in mine production because of its advantages of simple structure, low price, good crushing particle shape, easy maintenance, etc. In the mine crushing production line, the ultrafine vertical mill is generally used for secondary crushing to crush the material to the required size. The capacity of ultrafine vertical mill will directly affect the economic benefits of the whole…

After the blade is worn, the amount of returned sand is reduced, resulting in coarser grinding fineness. In addition, if the blades are severely worn, it will affect the life of the classifier, so check the blade wear in time during work and replace the worn blades in time.

The level of the overflow weir of the classifier affects the size of the sedimentation zone of the ore. In production, the level of the overflow weir of the classifier can be adjusted appropriately according to the…

The causes are as follows: 1) excessive powder accumulation or unbalanced wear on vertical roller mill blades; 2) The ground bolt is loose.

Solutions: 1) clean the dust on the wind blade or replace the wind blade; 2) Tighten the anchor bolts.

The main engine vibrates too much and produces noise

Causes: 1) the grinding roller does not rotate or the grinding ring is loose; 2) Metal objects…

The vacuum degree of the oil return pipe of the ultrafine vertical mill determines the oil level in the ultrafine vertical mill cavity. In order to keep the oil level in the ultrafine vertical mill relatively stable, the adjustment of the vacuum degree and pressure must be cautious. It is directly related to the lubrication state of the ultrafine vertical mill bearings.

If the oil pressure is…

The flange of the wind pressure sealing pipeline and the joint bearing on the sealing pipeline in the mill have poor sealing and air leakage, which reduces the wind pressure entering the grinding roll cavity;

When the mill is running or stopped, the unreasonable drawing of the wind in the mill will produce a slight negative pressure in the grinding roll cavity.

The above reasons may cause the air volume and air pressure to enter the…

The sealing of the ultrafine vertical mill is to prevent high-concentration dust in the mill from entering the ultrafine vertical mill cavity and to protect the ultrafine vertical mill bearings from damage. High pressure air is blown into the ultrafine vertical mill cavity through the sealing machine to form a positive pressure in the ultrafine vertical mill cavity to prevent The purpose of dust…

In production, ultrafine vertical mill will inevitably encounter various problems. Some time ago, a user left a message to the editor to ask what to do if the host of ultrafine vertical mill keeps vibrating. This is one of the common faults of ultrafine vertical mill, and it is also a problem that many users worry about. Today, the editor will present you with 15 reasons for vibration. There is always one that can solve your…