Turbine pulverizer quality appraisal

turbine pulverizer takes the synergy of high-speed turbine impact and shear as its core principle. By optimizing the rotor speed, wear-resistant parts life and classification accuracy, it achieves the synergy of ultra-fine crushing of materials and particle size uniformity. It is widely used in the field of ultra-fine powder preparation in the chemical, pharmaceutical, food and mineral industries. In the processing of heat-sensitive materials, it is used for low-temperature crushing to avoid component damage; in the processing of high-hardness materials, it meets the needs of nano-scale crushing. Compared with traditional grinding equipment, the turbine grinder has the characteristics of high efficiency, energy saving, controllable particle size and intelligent monitoring (real-time feedback of vibration and temperature). It is the core equipment of the fine grinding process.

Zhongke Testing is a product quality appraisal service organization registered with the court. It can provide turbine pulverizer quality appraisal services. It has a professional appraisal team and advanced instruments and equipment to provide fair and accurate appraisal results for turbine pulverizer quality appraisal.

As the complexity of the ultra-fine grinding process increases, related quality dispute cases have increased significantly. The judicial dispute focuses on:

1, performance index dispute: the crushing particle size does not meet the standard, and the unit energy consumption increases abnormally;

2, material defects: the wear-resistant coating of the turbine blade peels off, and the porosity of the bearing seat casting exceeds the standard ;

3, process problems: classifier speed control failure, abnormal system air volume fluctuation;

4, contract performance dispute: core modules (such as imported dynamic classifiers, intelligent lubrication systems) are inconsistent with the technical agreement.

Quality identification of turbine pulverizer requires systematic technical means:

1. Appearance inspection: observe turbine blade wear, classification wheel deformation and sealing structure leakage;

2. Performance test: laser particle size analyzer detects finished product distribution, and power analyzer calculates energy consumption efficiency; HTMLTAGTOKEN EN5

3. Material analysis: direct reading spectrometer detects blade alloy composition, scanning electron microscope observes coating interface bonding strength;

4. Dynamic verification: continuous operation at full load monitors vibration intensity and bearing temperature rise;

A pharmaceutical factory of the applicant signed a "Purchase Contract for Nanoscale Turbine Crusher" with an equipment manufacturer of the respondent, and it was agreed that the finished product D90 ≤ 10 μm. After being put into production, the actual measured D90 reached 25μm. The manufacturer argued that it was caused by the characteristics of the material.

Identification and analysis results:

The expert group found that: the hardness of the turbine blades was less than the agreed value, the classification wheel speed deviation exceeded ±10%, and the system air volume control failed, resulting in coarse powder return.

The appraisal conclusion determined that defects in equipment materials and process control were the main reasons for excessive particle size.

Turbo pulverizer quality appraisal report should include:

1, appraisal purpose and reference standards;

2, equipment model involved, technical agreement and operation log;

3, detection method and equipment list;

4, test data and failure correlation analysis;