Therefore, the reason of ling damage must be found in time, replaced and supplemented.

It is very important to judge the quality of ultrafine vertical mill quickly and accurately in the process of vertical grinding. The simplest diagnosis method is to analyze and diagnose by "touch", "measure" and "look" by the experience accumulated by operators and simple instruments to identify the…

The accumulator plays the role of energy storage, pressure maintaining, shock absorption and shock absorption in hydraulic system. However, if ultrafine vertical mill is in unstable operation, the stretching rod acts frequently or the action range is too large, the nitrogen air bag shrinks frequently, which will cause the nitrogen airbag to burst.

The nitrogen in the accumulator airbag works like…

Reasonable selection of steel balls and lining plates is an important way to reduce lining wear.Therefore, related staff need to start with the size and quantity of the ball and the hardness ratio between the lining plate and the steel ball of the vertical roller mill to fundamentally reduce the loss of the lining plate during the operation of the vertical roller mill.

Generally speaking, the hardness…

Once the vertical roller mill is in abnormal operation state, it will also bring adverse effects on the use of lining plates.Generally speaking, the steel balls in the vertical roller mill are mixed with the material, so when the steel balls impact the liner in a parabolic state, the material will play a buffer role and grind the material down gradually.

When the equipment is operated under low load,…

The working principle of the vertical roller mill is to use the cylinder to turn and lift the steel ball to a certain height and then drop it in a parabola to impact the material in the cylinder, so that the material and lining can be fully friction.Therefore, under continuous operation, severe wear of steel balls and liners occurs, which is directly related to the hardness of the material.

In addition,…

Vertical roller mill is one of the most widely used and widely used equipment in the grinding and processing industry. According to the statistics of the competent department of the industry, the share of Vertical roller mills in domestic grinding equipment is as high as 70%.

However, as the production progressed, some users reported that the output of their vertical mill was reduced and…

The production efficiency of the grinder directly affects the profit of the manufacturer. For the factors affecting the production efficiency of the ultrafine vertical mill, more attention must be paid to it in the production. Today, we will discuss with you what factors affect the efficiency of the ultrafine vertical mill.

Material hardness is an important factor affecting the production efficiency of the grinder. The…

The three-way valve plate of the vertical roller mill is not flexible. It is often open or because of the high moisture content of the material. After the valve plate is removed, the system leaks seriously, causing slag spit.

The hot air pipe at the inlet of vertical roller mill is due to material deposition, resulting in a small flow of gas entering vertical roller mill, and insufficient air flow,…

1. If the three pieces (iron, wood, stone) inside the vertical roller mill cause great vibration and cannot be eliminated during operation, stop the vibrating vertical roller mill and wait for the temperature in the vertical roller mill to drop below 50°C. Contact the maintenance personnel to open the manhole of the coal pulverizer to inspect and clean the three pieces of the coal pulverizer;

2. Under…

Controlling the running state of the vertical roller mill is also an important measure to deal with the wear of the liner. When the vertical roller mill is running at low load, it is necessary to adjust the ore intake of the vertical roller mill in time to improve the grindability coefficient of the ore.

In the installation process of the liner, it is necessary to cut and repair the parts that do not…

The material of the liner and the heat treatment process directly determine the mechanical properties of the liner, and will have an important impact on the wear of the liner. If the material of the liner is improperly selected and the heat treatment process is unreasonable, the fatigue strength and service life of the liner will be greatly reduced, and the requirements of the vertical roller mill grinding…

Pay attention to the heating and cooling operation of the vertical roller mill. Most manufacturers do not pay attention to the heating and cooling operations of vertical roller mills, and fail to realize that reasonable heating and cooling operations can prolong the service life of key large bearings and wear parts.

When welding construction in the vertical roller mill, attention must be paid to the…

Ensure the normal operation of the sealed fan. The wind pressure should not be lower than the specified value. Under normal circumstances, it should be kept above 20Bar. Regularly check whether the sealed air duct is damaged; the joint bearing at the joint between the sealed air duct and the vertical roller mill in the grinding cavity Whether the flange is disengaged, etc.

At the same time, in order…

The sealing air system is a key link to ensure that the oil seal of the grinding roller is not damaged. The sealed air system consists of a sealed fan and an air duct. The blown wind starts from the sealed fan and finally reaches the sealed air duct. The grinding roller installed on the grinding disc of ultrafine vertical mill seals the air to form a space.

In this way, an annular seal cleaning…

The roller bearing is the core component of ultrafine vertical mill. It runs in a complex environment of high temperature, impact, heavy load, and low speed. Therefore, various failures will occur if it is not properly maintained.

In particular, the abnormal temperature of the roller bearing will cause the electric switch of ultrafine vertical mill to be cut off frequently, which will…

In the interior of the vertical roller mill, the material after the sorter is ground and dried enters the part along with the air flow from the lower part for sorting operation. The purpose of sorting is to obtain a better quality of the finished product. There are moving and static blades, and the welding must be firm, otherwise it will cause accidents such as shutdown.

The maintenance of this part is…

LUM series ultrafine vertical mill is a professional new type of ultrafine vertical mill that Shanghai SBM relies on nearly 30 years of Mill Research And Development and manufacturing experience, based on LM vertical mills, and combines Taiwan's advanced roller technology and German new powder selection technology.

Low wear and long life. The grinding roller and the liner are made of…

LUM series ultrafine vertical mill is a professional new type of ultrafine vertical mill that Shanghai SBM relies on nearly 30 years of mill research and development and manufacturing experience, based on LM vertical mills, and combines Taiwan's advanced roller technology and German new powder selection technology.

The feed size is less than 10mm, the production capacity is 5-18/H, and the…

First of all, resource advantages. my country has a vast territory and is rich in cement raw material resources, especially limestone reserves, which have been proven to be 35.8 billion tons, while others such as marble reach 50 billion tons, and refractory clay and bauxite mines reach 30 billion tons.

In addition, coal reserves account for 12.6% of the world's reserves. They are all valuable raw materials for the…

For example, in hot weather, the ultra-fine grinding mill itself will generate a certain temperature when it is produced, and the outside temperature is also very high, which will prevent the temperature of the equipment itself from dissipating. Intensified molecular movement of internal parts, resulting in deformation of parts, etc. To solve this problem, we need to start with the following…