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Jan 02, 2024
Effect of grinding roller speed and speed ratio on wheat flour quality
In the wheat milling project, the mill roller is a vital piece of equipment that directly affects the quality of the flour. Among them, the speed and speed ratio of the grinding roller are the key factors that determine the fineness and quality of the flour. In this paper, we will deeply discuss the influence of the speed and speed ratio of the grinding roller on the quality of wheat flour, and provide practical guidance for wheat milling engineering.
The influence of grinding roll speed
1.1 The relationship between speed and fineness
The rotational speed of the grinding roller directly determines the residence time of the wheat grain between the grinding rollers, which affects the fineness of the flour. In general, a higher roll speed results in the particles being ground more fully, resulting in finer flour particles.
1.2 The problem of excessive speed
Roll speed that is too high can also cause some problems.
First of all, high speeds can lead to more frictional heat, which can adversely affect the quality of the flour. Secondly, if the residence time of the wheat grains between the grinding rollers is too short, it may not be completely ground, which will affect the improvement of fineness.
1.3 Flexibility in regulating speed
In actual production, it is necessary to reasonably adjust the speed of the grinding roller according to factors such as wheat variety, moisture content and flour use. This requires the milling engineer to be flexible in the production process and be able to adapt to the actual situation.
The influence of the speed ratio
2.1 Definition of gear ratio
The speed ratio is the ratio of the circumferential velocity of the two rollers of the grinding roller. It directly determines the degree to which the pellets are squeezed between the two grinding rollers, which affects the quality of the flour.
2.2 speed ratio with particle crushing
The appropriate speed ratio can increase the force area of the particles, which can be crushed more fully. This helps to improve the fineness and uniformity of the flour.
2.3 The problem of excessive speed ratio
Ratios that are too high can also be problematic. Excessively high speed ratios may cause the particles to become too fine under excessive extrusion, affecting the quality of the flour. In addition, the increase in the speed ratio may also cause additional load on the equipment and increase energy consumption.
2.4 Find the right gear ratio
Choosing the right speed ratio also needs to be adjusted in practice. When determining the speed ratio, factors such as the target fineness of the flour, the nature of the raw material, and the load bearing capacity of the equipment need to be taken into account.
The synergistic effect of speed and gear ratio
3.1 Find a balance
The rotational speed and speed ratio of the grinding rollers do not exist in isolation, there is a synergy between them. The combination of reasonable speed and speed ratio can find a balance in different situations, so that the flour can maintain its fineness while ensuring the stability of other quality indicators.
3.2 Optimization of production process
In practice, production engineers need to experiment and observe to find the most suitable combination of roll speed and speed ratio for the current production process. This requires a deep understanding of the properties of the raw materials and the characteristics of the production equipment, as well as a timely understanding of market demand, as different products may have different requirements for flour quality.
The importance of quality control
4.1 Online monitoring and adjustment
In order to ensure the stability of the grinding roll speed and ratio, real-time monitoring on the production line is essential. By setting up appropriate sensors on the production line, the particle distribution, fineness and other indicators of the flour can be monitored online, so as to adjust the operating parameters of the grinding roll in time.
4.2 Regular maintenance and overhaul
Regular equipment maintenance and overhaul are equally important. The degree of wear of the grinding roll will affect its working effect, so regular maintenance work can ensure the normal operation of the grinding roller, so as to ensure the stability of the speed and speed ratio.
In wheat milling engineering, the speed and speed ratio of the grinding roller are the two key parameters that affect the quality of flour. The right combination of speed and speed ratio can make the wheat grains fully broken, resulting in a finer and better quality flour. However, this requires production engineers with deep theoretical knowledge and practical experience, who can flexibly adjust and optimize according to different wheat raw materials and production needs.
In the future, with the continuous development of intelligent technology, the speed and speed ratio of the grinding roll will be adjusted more accurately. The intelligent monitoring system can collect data in real time and use algorithms to analyze it and provide engineers with more accurate adjustment suggestions. This will make production more efficient and better able to adapt to the needs of the market.
In actual production, in order to better grasp the influence of the speed and speed ratio of the grinding roller on the quality of flour, it is recommended that the production engineer take the following measures:
Establish meticulous records
The speed and ratio of the grinding rolls are recorded during each production process, as well as the fineness of the flour and other quality indicators. Through the analysis of this data, it is possible to find best practices for different parameter combinations
Comprehensive consideration of multiple factors
Considering the variety, moisture content, hardness and other factors of wheat, the adjustment of grinding roller speed and speed ratio is comprehensively considered. Different wheat ingredients may require different treatments.
Regular training of staff
Ensure that the operating staff has a certain understanding and judgment ability to adjust the speed and speed ratio of the grinding roller. Regular training allows staff to better adapt to the adjustment needs of different situations.
Maintain the equipment in a timely manner
Regular maintenance and overhaul of the grinding rolls to ensure that the degree of wear on their surfaces is within a controllable range. This extends the life of the equipment and keeps it efficient.
Introduce an intelligent monitoring system
Consider introducing an intelligent monitoring system to achieve real-time monitoring of roll speed and speed ratio. This allows problems to be identified in a more timely manner and adjusted accordingly.
Keep pace with market demand
Understand the changes in the market's demand for flour quality, and adjust the production process in time to meet the needs of the market. Flexibility is key to adapting to market changes.
In the wheat milling project, the adjustment of the speed and speed ratio of the grinding roller is a comprehensive problem, which needs to be operated flexibly according to the actual situation. Through continuous optimization and adjustment, production engineers can improve the fineness of the flour while maintaining the quality of the flour, thereby increasing the market competitiveness of the product.
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