The cause of temperature rise of the vertical roller mill is confirmed, the fault can be handled immediately by strengthening the ventilation in the barrel of the vertical roller mill; Water spray device can be added to spray water from the grinding head or tail.

The water spray cooling in the cylinder not only uses the sensible heat of water, but also uses the latent heat of water during evaporation,…

The diagnosis is mainly to compare various symptoms and standards of the vertical roller mill in operation to judge whether the vertical roller mill is in normal operation, so as to find out the causes and eliminate the problems in time before the failure, or predict the operation state of the vertical roller mill according to some symptoms and find the corresponding relationship between performance change and structure…

First, when purchasing vertical roller mill, you must choose vertical roller mill manufacturers with qualified quality.

Second: when installing vertical roller mill gear, it must be carried out in strict accordance with the requirements of national regulations to ensure that the top clearance, runout and contact of large and small gears meet the specified requirements.

Third: during the…

Barite ore grinding mill is a very important equipment in the concentrator and accounts for a large proportion of the investment of the whole concentrator.

In order to ensure the service life of barite ore grinding mill, the service life of barite ore grinding mill gear must be guaranteed first, because barite ore grinding mill gear is a mechanical component to realize barite ore grinding mill…

Environmentally friendly permanent magnet synchronous variable frequency speed regulation motor can eliminate the deceleration links such as hydraulic coupler, reducer and belt pulley, so as to avoid the bad on-site environment and environmental pollution caused by oil leakage of reducer and other factors; At the same time, the noise generated by the wear of asynchronous motor cooling fan and reducer is avoided, which greatly improves the environmental friendliness of the site

Raymond…

As one of the important equipment in concentrator, barite grinding mill plays an important role.

Barite grinding mill not only determines the technical indicators of the whole beneficiation process, but also accounts for most of the investment cost and energy consumption.

Therefore, it is very important to realize the high efficiency and energy saving of barite grinding mill.

Zenith has focused on…

Raymond mill load test run stage Raymond mill load test run is carried out under the condition of adding an appropriate amount of mineral material and water to Raymond mill.

In the whole process, it is necessary to gradually add materials to Raymond mill from no-load to full load.

After running for a period of time, if there are no abnormalities, Raymond Mill's load commissioning can be ended.

In…

The grinding concentration determines the friction between grinding medium and material, pulp fluidity, effective density and effective weight of medium, and then affects the production efficiency of vertical roller mill.

The grinding concentration also has a suitable range, which is too large or too small. In actual production, we generally advocate "high concentration grinding and low concentration classification".

Generally, the grinding concentration is comprehensively…

It is found that within a certain range (such as 100% ~ 500%), the productivity of Raymond mill will increase with the increase of sand return ratio.

When a certain value is reached, the productivity increase will gradually decrease, and the total ore feeding capacity of Raymond mill is close to its upper limit. If the sand return ratio is forcibly increased at this time, it is easy to cause Raymond Mill…

As a very important equipment in the whole concentrator production line, Raymond Mill undertakes the important task of grinding operation.

However, we also know that Raymond mill is actually a lossy equipment, which requires users to not only maintain it regularly, but also pay attention to the daily operation of Raymond mill.

During the operation of Raymond mill, some users abuse Raymond mill for…

Unreasonable grinding aid dosage vertical roller mill operation grinding can add a small amount of grinding aid without damaging the product performance, which can not only accelerate the crack propagation in material crushing, reduce the mutual adhesion between fine powders, effectively improve the grinding efficiency, but also improve the energy-saving efficiency of vertical roller mill…

Generally, the grading range is 25% ~ 35%, but in practical application, the intermediate grading is mostly 28% ~ 32%.

Common steel ball grade ratio of silica sand mill under economic operation: steel ball diameter mm Φ one hundred Φ eighty Φ sixty Φ forty Φ 20 mass / total filling quantity 7.5% 6.9% 33.5% 30.1% 22 note: when the grindability of materials is poor or the grinding requirements are fine, the…

When the moisture content of the materials entering the mill is too large, the grinding body and the lining plate will adhere, resulting in paste grinding, blocking the grate plate and full grinding.

However, containing a small amount of moisture can effectively reduce the temperature and static electricity of silica sand mill.

Therefore, the average moisture of silica sand mill is generally…

Silica sand mill is mainly responsible for the grinding operation of the concentrator.

It is a key link of the beneficiation process and accounts for a large proportion in the infrastructure investment and production cost of the whole concentrator.

At the same time, silica sand mill is also the "bottleneck" operation link of the whole concentrator.

It is directly related to the overall…

Generally, the grading range is 25% ~ 35%, but the intermediate grading in practical application is mostly 28% ~ 32%. LM vertical roller mill steel ball grade ratio under common economic operation: steel ball diameter mm Φ one hundred Φ eighty Φ sixty Φ forty Φ 20 mass / total filling quantity 7.5% 6.9% 33.5% 30.1% 22 note: when the grindability of materials is poor or the grinding requirements are fine, the filling rate of…

LM vertical roller mill is mainly responsible for the grinding operation of the concentrator. It is a key link of the beneficiation process and accounts for a large proportion in the infrastructure investment and production cost of the whole concentrator.

At the same time, LM vertical roller mill is also the "bottleneck" operation link of the whole concentrator. It is directly related to the overall…

China's powder industry has become a large cross industry and interdisciplinary industry. The output value of the national powder industry has accounted for more than half of the total output value of the primary and secondary industries, and plays an important role in the national economy.

The development of powder industry must rely on grinding equipment. However, no matter what the development situation of ultrafine mill is now, it will not determine the…

Many production raw materials will use fly ash. However, with the continuous improvement of production requirements, the traditional Raymond mill can no longer meet the production needs, and the vertical roller mill came into being.

When the vertial roller mill is grinding, it is first affected by external forces, which gradually destroys the cohesion of materials. Compared with the traditional…

The ultrafine mill can be divided into two types according to the processing particle size of materials, one is crusher and the other is ultrafine mill. Generally, the fineness of materials crushed by crusher is large; The fineness of materials processed by the ultrafine mill is small, such as 300 mesh fine powder small ultrafine mill. Customers choose the appropriate machine according to the size of materials they…

The common production equipment of Hebei Chengde cement company is vertical grinding powder equipment. The vertical grinding machine has strong adaptability to materials.

The application of micro powder grinding technology has greatly improved the fineness of cement clinker. The biggest advantage of mineral powder vertical roller mill is ultra-fine powder separation technology, which can…