scispace - formally typeset
Search or ask a question

How does blade speed influence a blade mill in powders? 


Best insight from top research papers

Blade speed plays a crucial role in the performance of blade mills in powder processing. Studies have shown that varying blade speeds impact the motion and distribution of particles within the mill. Higher blade speeds can lead to the development of roping behavior, aiding in better liquid distribution and nucleation . Additionally, at critical speeds, the axial motion within the mill can form circulation cells, influencing particle exchange dynamics . Moreover, in high-speed milling machines, increasing roller speeds and optimizing transmission ratios can significantly enhance milling efficiency and reduce power consumption . Overall, blade speed adjustments in blade mills affect particle motion, distribution, and milling efficiency in powder processing applications.

Answers from top 5 papers

More filters
Papers (5)Insight
Blade speed influences the mill output rate, strip thickness, density, and rolling pressure in metal powder rolling, with higher speeds leading to decreased powder head and increased motor load.
Patent
20 Aug 2003
1 Citations
Blade speed in a high-speed powder mill affects milling efficiency by increasing roller speed, reducing transmission ratio, and enhancing material feeding speed, resulting in higher yield and lower power consumption.
Blade speed (300 vs. 450 rpm) affects powder motion in a high shear mixer, impacting roping behavior for optimal liquid distribution and nucleation with flat blades at different speeds.
Blade speed affects powder selection in a vertical mill by impacting efficiency and particle size distribution, but the paper focuses on rotor blade design for longevity, not speed effects.
Blade speed affects particulate motion in a powder mixer, scaling radial and axial velocity fields. Above a critical speed, two circulation cells form with particles exchanging periodically.

Related Questions

What is ball mill in powder metallurgy?5 answersA ball mill in powder metallurgy refers to a milling device used for reducing the particle size of metal powders. It is a crucial tool in the production of fine and homogeneous powders, especially in processes like mechanical alloying. The ball milling process involves parameters such as the type of ball milling, ball-to-powder ratio, rotation speed, grinding period, size and shape of the milling media, and the use of process control agents. These factors influence the quality and characteristics of the metal powders produced, impacting their efficiency and effectiveness in applications like rapid tooling for injection molding and additive manufacturing. Ball mills are designed to improve milling efficiency, quality, and energy consumption, making them essential for producing metal powders with enhanced properties for various industrial uses.
What is the relationship between powder feed rate and solidification cracks?5 answersThe relationship between powder feed rate and solidification cracks is influenced by various factors. In the study by Choi et al., cracks were observed at high powder feeding rates during laser surface-melting alloying process. Similarly, Alizadeh-Sh et al. found that solidification cracking occurred during laser cladding of Inconel 718 powder on A-286 iron based superalloy. On the other hand, Caton et al. investigated the effect of solidification rate on small-crack growth behavior in a 319-type aluminum alloy and found that faster solidification rates resulted in slower growth rates of small cracks. Additionally, Zhang et al. reviewed the issue of solidification cracks in LPBF manufactured aluminum alloys and discussed methodologies for crack inhibition, including optimization of process parameters. Therefore, the relationship between powder feed rate and solidification cracks is complex and depends on the specific alloy and processing conditions.
What is the significance of milling process in manufacturing industry?5 answersMilling is a significant process in the manufacturing industry due to its common use and impact on productivity. It is a widely used machining operation that involves cutting and shaping materials using a rotating cutter. The process has limitations such as high cutting forces and stability issues, which can lead to reduced productivity and quality issues. However, recent advances in machining technology have led to the development of models that can optimize the milling process by selecting the appropriate cutting conditions, such as feed, depth of cut, and spindle speed. Additionally, milling plays a crucial role in the cereal and feed industry, as it affects the performance of finished products by damaging starch granules and disrupting their crystalline structure. Overall, milling is essential for achieving efficient and high-quality manufacturing processes in various industries.
Why does the particle size analysis peak not appear after the milling process?5 answersThe particle size analysis peak may not appear after the milling process due to several factors. One possible reason is the change in crystallite size and lattice strain caused by the milling process, which leads to peak broadening and shifting. Another factor could be the variations in oxygen content on a micron scale, which can affect the superconducting properties of the material. Additionally, the use of different particle size distribution models or weight percentage calculations may result in variations in the reported particle size distribution, leading to the absence of a clear peak. Furthermore, the presence of agglomerates or modifications in morphology caused by the milling process can also affect the particle size analysis. Therefore, the absence of a particle size analysis peak after milling can be attributed to the changes and uncertainties introduced during the milling process.
Does the mechanical efficiency of the gas turbine increases with speed?4 answersThe mechanical efficiency of a gas turbine does not necessarily increase with speed. Increasing the speed of the gas turbine can lead to an increase in power output and reduced fuel consumption, but it does not directly affect the mechanical efficiency.However, the speed of the gas turbine can have an impact on its overall performance. Higher speeds can result in increased power output and reduced fuel consumption, leading to improved efficiency.It is important to consider other factors such as site elevation, ambient temperature, and relative humidity, as well as the speed of the driven equipment, the fuel, and the load conditions, when evaluating the performance of a gas turbine.Overall, the efficiency of a gas turbine is influenced by various factors, and speed alone is not the sole determinant of mechanical efficiency.
Does the Gas turbine mechanical efficiency increase with speed?5 answersGas turbine mechanical efficiency can be affected by speed. The study by Sufian found that increasing the gas turbine speed led to an increase in power output and reduced output thrust, while decreasing fuel consumption. However, the study by Ghaderi and Damircheli mentioned that increasing the inlet gas temperature had little effect on turbine efficiency. It is important to note that the effect of speed on mechanical efficiency may vary depending on other factors such as temperature and fuel consumption.

See what other people are reading

What is a grain dryer machine?
5 answers
A grain dryer machine is a device used for efficiently drying grains to reduce moisture content and prevent spoilage. Various types of grain dryer machines exist with different designs and functionalities. They typically consist of components such as drying chambers, agitators, heating mechanisms, and air circulation systems. These machines employ methods like hot-air suspension drying, steam heating, and controlled exposure to electromagnetic radiation to dry grains effectively. Some grain dryers utilize stirring plates, driving plates, and conveying devices to facilitate the drying process and improve efficiency. Overall, grain dryer machines play a crucial role in agricultural processes by ensuring grains are properly dried for storage and further use.
What is chicken dressing?
5 answers
Chicken dressing refers to various processes involved in preparing chickens for consumption or specific purposes. This includes techniques like injecting chickens with a mixture of water and edible oil to enhance their quality, as well as utilizing devices like bird dressing machines in poultry processing lines to streamline the dressing process and increase productivity. Additionally, tools such as pneumatic rotary motors with cutter blades are used to remove oil glands or sacs from fowl carcasses efficiently. Furthermore, machines are designed to pluck feathers from poultry effectively, improving the overall dressing process. Overall, chicken dressing encompasses a range of methods and technologies aimed at preparing chickens for various applications, from consumption to industrial processing.
What are the types of water power generator?
4 answers
Different types of water power generators include submersible turbine assemblies for converting water current into electric power, household devices utilizing water flow to rotate turbines and generate electricity, with mechanisms to distribute water flow and prevent turbine damage, combined wind and water generators for stable operation in stormy waves, equipped with measuring instruments for real-time monitoring and high precision testing, small water wheel generators with flow guiding and runner mechanisms for efficient power generation from small water sources like ponds, and water inlet wave power devices designed to utilize seawater circulation and vortex sheets to generate power efficiently and cost-effectively. Each type offers unique features for harnessing water energy for sustainable power generation.
How were the machines before engines?
5 answers
Before the advent of engines, machines were limited in precision and uniqueness due to the difficulty in cutting metal accurately, as seen in the 18th century when each piece was bespoke. However, significant advancements in machine tools revolutionized the manufacturing industry. British industrialists like John Wilkinson, Henry Maudslay, and Richard Roberts played crucial roles in developing tools for precise metalworking, enabling the creation of truly circular and parallel iron cylinders and facilitating accurate turning, cutting, and planing of metal components. These innovations led to a transformation in machinery production, with Britain emerging as a global leader in manufacturing by the early 19th century, showcasing the evolution from rudimentary and unique machines to standardized and efficient production processes.
What is the objectives of mini fans?
4 answers
The objectives of mini fans are multifaceted based on the designs and features they offer. Mini fans aim to provide portable cooling solutions while incorporating innovative functionalities. These objectives include energy efficiency and environmental friendliness through features like solar charging panels, air purification capabilities using filter layers like electrostatic cotton and activated carbon, hands-free operation and adjustable wind direction for user convenience, enhanced air power and noise reduction through dual fan blades, and versatile usability with multipurpose supporting bases for various elevation angles and air outlet functions. Overall, mini fans strive to offer compact, efficient, and user-friendly cooling solutions with added features for improved functionality and convenience.
What are the positive impact of Hyperloop in terms of Speed and Efficiency for Hyperloop technology companies?
5 answers
Hyperloop technology offers significant positive impacts on speed and efficiency for Hyperloop technology companies. The Hyperloop system aims for speeds exceeding 1,000 km/h, reducing travel times drastically. Simulation models for Hyperloop operations show that the system can transport passengers between cities at very high speeds, enhancing operational efficiency. Additionally, the development of Linear Induction Machines (LIM) for Hyperloop propulsion focuses on achieving maximum speeds of around 150 km/h while maintaining efficiency through design methodologies and temperature-dependent efficiency maps. These advancements in speed and efficiency not only enhance the passenger experience but also contribute to the overall success and competitiveness of Hyperloop technology companies in the transportation sector.
What significance of impeller centrifugal pump?
5 answers
The impeller in a centrifugal pump plays a crucial role in enhancing efficiency and performance. By utilizing various manufacturing techniques such as machining, applying turbulators to the impeller blade, and designing composite structures for impeller disks, the impeller aims to minimize friction losses, improve airtightness, and accelerate the transition from laminar to turbulent flow. Additionally, impeller designs with specific blade arrangements and surface features contribute to increased pump efficiency, reduced power consumption, and enhanced cavitation characteristics. These advancements lead to optimized pump operation, higher delivery lift, and improved functioning in handling various types of liquids, including hazardous media.
How can the efficiency of unit boiler feed pump be improved in PLTU?
5 answers
To enhance the efficiency of a unit boiler feed pump in a Power Plant (PLTU), several strategies can be implemented based on the research findings. Firstly, analyzing and interpreting the performance of the Boiler Feed Pump Turbine (BFPT) is crucial, considering parameters like flow rate, temperature, and pressure. Additionally, interventions such as impeller trim, speed regulation, or even the installation of new pumps can significantly boost efficiency, with potential improvements of up to 30% on average in industrial boilers. Moreover, optimizing the design of auxiliary impeller structures within the pump system can lead to increased efficiency by ensuring the impeller works optimally for cooling water circulation and bearing lubrication. By implementing these measures, the efficiency of the unit boiler feed pump in PLTU can be effectively enhanced.
What are the solutions to modelling challenges of tidal power scheme?
5 answers
To address the challenges in modeling tidal power schemes, several solutions have been proposed. One key solution involves integrating supercapacitor-based Energy Storage Systems (SC-ESS) with tidal turbines to mitigate power fluctuations. Additionally, fully coupled models incorporating Blade Element Momentum Theory (BEMT) and computational fluid dynamics (CFD) simulations have been developed to accurately predict turbine performance and blade loads. Furthermore, techniques such as automatic generation of tidal harmonic forcings, perpetual interannual tidal predictions, and modified tidal prediction codes have been introduced to enhance regional and coastal ocean modeling. Understanding the impact of hydraulic structures like coastal reservoirs has also been emphasized for reliable hydrodynamic analysis of tidal projects. These solutions collectively aim to improve the efficiency, reliability, and accuracy of tidal power modeling.
How to upload a paper here?
5 answers
To upload a paper here, you can utilize a method and apparatus for paper-based upload and tracking of documents. This involves scanning a document to obtain an image with machine-readable information, decoding this information to determine a destination specification, and then uploading the corresponding information to a specified destination host. By following this process, you can efficiently upload your paper to the desired location. This method ensures a seamless transfer of document data from a physical format to a digital platform, enabling easy sharing and tracking of important documents.
Control mechanisms for archimedes screw turbine?
5 answers
Control mechanisms for Archimedes screw turbines vary based on different inventions. One mechanism involves a controller, motor, polar angle moving mechanism, and polar radius moving mechanism to control angular and linear displacements for Archimedes spiral processing. Another design includes an oscillator with piezoelectric actuators to move an output shaft along the axis by rotating a rotor with threaded parts. Additionally, a pump system utilizes electromagnets to generate a magnetic field, causing a helical vane with a permanent magnet to rotate for fluid circulation. These mechanisms showcase diverse approaches to controlling Archimedes screw turbines, emphasizing precision, efficiency, and fluid movement in various applications.