Flour milling is an intricate process that requires precision, efficiency, and the right equipment. One essential component in this process is the sifter, which plays a critical role in separating particles based on size. There are various types of sifters used in flour milling, each with its own set of advantages and disadvantages. In this blog, we will delve into the merits and demerits of two common types of sifters: drawer-type sifters and square sifters. Understanding these differences can help millers make informed decisions that balance capacity, maintenance, and space constraints.

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Understanding sifters in flour milling

Sifters are crucial in the milling process as they ensure the separation of flour and other particles by size. This separation is vital for producing a high-quality product. The two main types of sifters we will focus on are drawer-type sifters and square sifters. Each has its unique features that cater to different milling needs.

Drawer-type sifters

Drawer-type sifters are commonly used in smaller milling operations. They are named for their drawer-like design, which allows for easy access and maintenance.

Merits of drawer-type sifters

• Ease of maintenance: One of the most significant advantages of drawer-type sifters is their ease of maintenance. The drawer design allows millers to quickly access the sifting screens for cleaning or replacement, reducing downtime and ensuring a smooth operation.
• Adaptability: Drawer-type sifters are highly adaptable and can be used in various milling setups. Their design allows for easy integration into existing systems, making them a versatile choice for many millers.
• Cost-effective: These sifters are generally more affordable than their square counterparts, making them an attractive option for smaller milling operations or those with limited budgets.

Demerits of drawer-type sifters

• Space efficiency: One of the main drawbacks of drawer-type sifters is their inefficiency in terms of space utilization. Their design often requires more floor space, which can be a constraint in smaller milling facilities.
• Limited capacity: Drawer-type sifters typically have a lower sifting capacity compared to square sifters. This limitation can be a disadvantage for larger milling operations that require higher throughput.
• Sanitation challenges: While drawer-type sifters are easy to maintain, their design can sometimes pose sanitation challenges. The drawers can accumulate dust and debris, requiring regular cleaning to maintain hygiene standards.

Square sifters

Square sifters are widely used in larger milling operations due to their extensive sifting capacity and efficient design. These sifters are known for their square-shaped frames and multiple screen layers, which allow for efficient particle separation.

Merits of square sifters

• Extensive sifting capacity: One of the most significant advantages of square sifters is their extensive sifting capacity. The multiple screen layers and efficient design allow for higher throughput, making them ideal for larger milling operations.
• Better sanitation: Square sifters are designed with sanitation in mind. Their enclosed structure helps minimize dust and debris accumulation, ensuring a cleaner milling environment.
• Space efficiency: Despite their larger size, square sifters are more space-efficient compared to drawer-type sifters. Their vertical design allows for better utilization of available space, making them suitable for facilities with limited floor space.

Demerits of square sifters

• Higher cost: Square sifters are generally more expensive than drawer-type sifters. The higher cost can be a significant consideration for smaller milling operations or those with limited budgets.
• Complex maintenance: While square sifters offer better sanitation, their maintenance can be more complex. The multiple screen layers and enclosed structure can make cleaning and screen replacement more challenging and time-consuming.
• Careful handling required: Square sifters require careful handling during installation and maintenance. Their larger size and complex design necessitate skilled personnel to ensure proper operation and avoid damage.

Choosing the right sifter for your milling needs

When selecting a sifter for your milling operation, it’s essential to consider various factors, including capacity, maintenance, and space constraints. Here are some key points to keep in mind when making your decision:

Capacity requirements

Assess your milling operation’s capacity requirements to determine which type of sifter is best suited for your needs. If you have a smaller operation with lower throughput requirements, a drawer-type sifter may be sufficient. However, if you require higher throughput, a square sifter may be a better choice.

Maintenance considerations

Consider the maintenance requirements of each type of sifter. Drawer-type sifters offer easy access for cleaning and screen replacement, making them a convenient option for operations with limited maintenance resources. On the other hand, square sifters may require more complex maintenance but offer better sanitation and higher capacity.

Space constraints

Evaluate the available space in your milling facility to determine which type of sifter will fit best. Drawer-type sifters may require more floor space, while square sifters offer better space efficiency with their vertical design. Choose a sifter that fits within your facility’s layout and maximizes space utilization.

Conclusion

Choosing the right sifter for your flour milling operation is crucial for ensuring efficiency, quality, and productivity. Both drawer-type sifters and square sifters offer unique advantages and disadvantages, making it essential to carefully consider your specific needs and constraints. By understanding the merits and demerits of each type of sifter, you can make an informed decision that balances capacity, maintenance, and space requirements.

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The development and advantages of roller flour mill

The roller flour mill fundamentally changes the original process of the core-skin mixing, and opens up a new process of “core separation” of the flour machine. M6FX, M6FC, M6FY type mills are all roller flour mills. These are small flour processing equipment used in rural mills.

Single small flour mill is one of the leading products of KEMC. In the production process, our company absorbs the essence of the advanced model of flour mills at home and abroad according to the needs of the market and users, and continuously develops and improves the flour processing series. The product is widely used for fine grinding of crops such as wheat and corn.

Features of roller flour mill

• The roller flour mill is based on the realization of full-air transportation and automatic circulation processing, and successfully realizes the separation of the core. It is a replacement product of the traditional roller-type flour machine, which changes the process of mixing the original skin core and improves the quality of flour.
• The roller flour mill adopts a new process of skin core separation technology, comprehensively optimizes the working structure of each part, ensures and also improves various economic indexes of the produced flour products. This type of product is a replacement for traditional single small milling equipment.
• The roller flour mill adopts two sifting structure design, unique powder lifting and grading screen design, which greatly improves product quality and production efficiency. The unique round screen wind lifting process is used, the sifting efficiency is high, and the screen sifting is convenient to replace.
• The roller flour mill adopts a reasonable and practical wind-powder lifting system, which completes the whole process of feeding, grinding, powder lifting and sieving processing at one time, and has high automation degree, which reduces the labor intensity of the operator.
• The roller flour mill has a compact structure, convenient operation, simple operation and easy to maintain.

In the flour processing equipment, the roller mill is inevitably used, but the development and design factors of the roller flour mill are not necessarily clear to everyone. Here is a brief introduction to some roller flour mills.

Advantages of roller flour mill

   The roller mill is the main engine of the milling industry. It has been designed and manufactured for hundreds of years. With the continuous development of science and technology and design improvement, it is continuously improved in the following aspects: comprehensive and meticulous performance; compact structure; the degree of automation of the combination of machine, electricity and gas. Therefore, it can meet the requirements of the milling industry to continuously improve product quality, develop new products, produce stable products and achieve uniform effects. Design materials are accumulated, screened and developed over a long period of time. Countries and design and manufacturing companies learn, improve and innovate.

The overall structural dimensions and requirements of today's roll mills are as follows:

 1. Ergonomic requirements

   At present, an emerging technical science, ergonomics, has been developed, combining human science, mechanical engineering, and electronic technology. It specializes in the cooperation between people and machines, considers the function and ability of human beings to design machines, and gives people the advantages of making comprehensive advantages and weighing various advantages and disadvantages to make correct judgments. It also allows machines to exert high power, high speed and precision. The benefits of exercise; to achieve the best match between the entire person and the machine; must eliminate the laborer's tension, reduce labor intensity and be able to engage in production safely, evenly and efficiently.

 2. Mill design considerations

   The design of the milling machine should be ergonomic. The mill is the main machine in the complete milling machine. It has a large number of uses. Compared with other machines, the operation requirements are higher and more frequent, so it should meet the ergonomic requirements.

   First of all, it must adapt to the requirements of human use, and secondly to meet the requirements of the development of production technology. Human use requirements: The operating scale is pleasant, the detection and adjustment are convenient, labor-saving, safe to operate, and the appearance and color are pleasing and quiet. The requirements of process development: adapt to the growth of unit flow and the trend of high-speed operation, adapt to the process layout compact, simplify, adapt to the trend of equipment shape and volume reduction and cooperate with the development of other equipment.

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