Screw Conveyor
Screw Conveyor: Versatile Transport Solution in Mill Processes
In the modern milling industry, efficient and reliable transport of grains and ground products is a critical component of the production process. Screw Conveyor systems developed by Tanış A.Ş. offer versatile transport solutions in mill processes with their flexible and durable structure that can work at different angles. These systems, which stand out with their precise engineering design, low energy consumption, and minimum maintenance requirements, are designed to meet the efficiency and flexibility expectations of modern mill operations.
The basic function of the screw conveyor system is to transport grain and granular materials continuously and controllably from one point to another. This system, which pushes material forward by rotating a spiral-shaped screw within a closed or open channel, is widely used at various stages of the mill process.
The working principle of spiral transport technology is simple but effective. While the spiral shaft driven by the motor rotates, it pushes the surrounding material forward along the spiral surface. The material advances at a constant speed depending on the shaft’s rotation direction and spiral angle. This mechanical principle provides maximum transport efficiency with minimum energy.
Its strategic importance and application areas in the mill process are quite broad. It can be used at every stage of the mill process from raw material acceptance to final product packaging. It is especially preferred in grain cleaning, storage, pre-grinding preparation, post-grinding transfer, and pre-packaging distribution stages. Thanks to its flexibility and reliability, it plays a critical role at many transfer points in the mill process.
Basic advantages compared to other transport systems include low energy consumption, simple mechanical structure, ability to work at different angles, easy installation, and low maintenance requirements. It consumes much less energy compared to pneumatic transport systems. It has a more compact structure compared to belt conveyors and offers vertical transport capability. Compared to elevators, it has the advantage of being able to transport on more flexible routes.
The detailed working principle of the screw transport system is a modern application of the Archimedes screw. The spiral shaft rotated by the motor pushes the material forward by compressing it between the spirals. The volume remaining between spiral pitches is the fundamental factor determining system capacity. The shaft’s rotation speed directly affects material advancement speed and consequently transport capacity.
The grain transport physics and motion dynamics of the screw design are optimized for an efficient transport process. Spiral geometry is designed considering grain rolling resistance, friction coefficient, and flow characteristics. In line with these physical principles, spiral pitch and diameter are calculated to provide maximum transport capacity and minimum energy consumption.
Motor and drive system characteristics provide reliable and efficient operation. In Tanış Screw Conveyor systems, high-efficiency IE3 class electric motors and durable reducers are used. Motor power is optimized according to screw diameter, length, and characteristics of the material to be transported. Direct or belt-pulley drive options are offered according to application needs.
The ability to work at different angles is one of the most important advantages of the system. Screw Conveyor, which offers inclined installation capability from horizontal position up to 45 degrees, provides great flexibility in facility layout. This feature allows material to be transported to desired points even in complex facility structures. Additionally, vertical installation options are also available.
Compact design and space-saving advantages are of great value in modern facilities. Screw Conveyor systems occupy less space compared to other transport systems of similar capacity. Thanks to its closed structure and flexible installation options, it can be easily adapted to existing facility structure. This compact structure also provides space efficiency in new facility designs.
Spiral structure and precise engineering design is the most important factor determining system performance. Tanış Screw Conveyors have spiral geometry optimized with computer-aided design and engineering calculations. Spiral diameter, pitch, thickness, and angle are precisely adjusted for maximum transport efficiency.
High-quality steel use and durability provide long-life operation. Spirals are manufactured from wear-resistant carbon steel or stainless steel. Material selection is made according to the characteristics of the product to be transported and working environment. All metal components undergo protective processes against corrosion.
Screw pitches optimized for different grain types maximize transport performance. Flow characteristics of different grains such as wheat, corn, and barley are considered in spiral design. Spiral pitch is selected according to product size, density, and flow behavior. This customization increases transport capacity while minimizing energy consumption.
Wear-resistant surface treatments and long life reduce operating costs. Spirals are reinforced with hardening, coating, or special wear plates as needed. Especially in transporting abrasive materials, special surface treatments that extend spiral life are applied. These treatments reduce maintenance needs while increasing working continuity.
Technical Specifications and Performance Parameters
Tanış Screw Conveyor systems are offered in various sizes to meet different capacity needs. Basic technical specifications are as follows:
| Model | Spiral Diameter (mm) | Capacity (tons/hour) | Motor Power (kW) | Maximum Length (m) | Maximum Incline (°) |
|---|---|---|---|---|---|
| TMVH-150 | 150 | 5-10 | 1.5-3 | 10 | 45 |
| TMVH-200 | 200 | 10-20 | 3-5.5 | 12 | 40 |
| TMVH-250 | 250 | 20-30 | 5.5-7.5 | 15 | 35 |
| TMVH-300 | 300 | 30-45 | 7.5-11 | 18 | 30 |
| TMVH-400 | 400 | 45-70 | 11-15 | 20 | 25 |
Features included as standard in all our models:
- High-quality steel spiral and housing
- Wear-resistant materials and coatings
- Access doors for easy maintenance
- High-efficiency motors and reducers
- Modular design for easy installation
- Durable bearing and support systems
- Dust-proof connection points
The relationship between spiral diameter and transport capacity is the fundamental factor in system selection. As diameter increases, the amount of material that can be transported per unit time increases. However, larger diameter also requires higher motor power and larger housing dimensions. Correct diameter selection should be made according to the amount of material to be transported and facility layout.
Motor power and energy consumption values are optimized for efficient operation. Minimum energy consumption per unit material is achieved with high-efficiency motors and correct sizing. Speed control is provided with optionally offered frequency converters, adapting to variable capacity needs.
Model Varieties and Capacity Alternatives
Different diameter options and capacity ranges offer suitable solutions for facilities of every scale. Spiral diameters ranging from 150 mm to 400 mm provide transport capacity from 5 tons to 70 tons per hour. Suitable models are available for every need from small-scale operations to large industrial facilities.
Length and power configurations according to facility needs provide optimized solutions. Standard lengths can be manufactured starting from 3 meters up to 20 meters depending on the model. For longer distances, special designs with intermediate bearings or series-connected systems can be used. Optimum motor power is calculated for each length, maximizing energy efficiency.
Specialized models for various grain types are available. Optimized spiral designs are offered for different grains such as wheat, corn, barley, rye, and oats. Additionally, special models have been developed for transporting ground products such as flour, semolina, and bran. Solutions providing ideal transport performance for each product type are available.
Structural Design and Engineering Features
Housing (tube) structure and durable manufacturing provide long-life operation. The housing is manufactured from high-quality steel and undergoes protective processes against corrosion and wear. Housing thickness is optimized according to the material to be transported and working conditions. Closed design both prevents material loss and controls dust emission.
Modular design approach for easy installation provides quick setup and service ease. Using standard flanges and connection elements, modules can be easily assembled. This modular structure simplifies transport and installation process while allowing future expansion or modifications.
Design features of inlet and outlet mouths provide efficient material flow. Inlet mouths are designed to ensure material feeds into the spiral smoothly and homogeneously. Outlet mouths guarantee complete and controlled discharge of material. Multiple inlet and outlet points can be added as needed.
Durability of bearing and shaft system provides long-life and reliable operation. High load capacity bearings and specially designed shaft supports provide trouble-free performance even under heavy working conditions. Easy-to-replace design minimizes maintenance time.
Dust-proofing and closed system advantages maintain workplace cleanliness. Special gaskets and sealing elements prevent dust leakage. Closed housing design cuts off material’s contact with external environment, both preserving product quality and ensuring workplace cleanliness.
Installation Alternatives and Flexibility
Horizontal, vertical, and angular installation capabilities adapt to facility structure. Screw Conveyor systems can be installed inclined from horizontal position up to 45 degrees. Specially designed vertical screws are also available. This flexibility offers effective transport solutions even in complex facility layouts.
The ability to work at different angles provides great advantage in facility design. Inclined installation option allows material transport between different levels. This feature enables efficient use of space, especially in multi-story facilities.
Ease of integration into existing systems gains value in modernization projects. Standard connection flanges and adaptable inlet-outlet mouths provide seamless connection to existing process equipment. This feature provides great convenience in partial system renewals.
Mobile and fixed installation options meet different application needs. In addition to fixed installations, mobile systems mounted on wheeled chassis are also available. Mobile solutions are ideal especially for seasonal operations or applications requiring use in different locations.
Transport Performance and Operational Advantages
The ability to transport grain precisely and controllably preserves product quality. Spiral design ensures grain kernels advance controllably and at constant speed, minimizing the impact effect of kernels hitting each other and the housing. This controlled transport is especially important for fragile grains.
Safe transport with minimum grain damage preserves product value. Screw Conveyor operating at low speed and optimum fill ratio prevents grain kernels from being crushed or broken. This feature is of critical importance especially in transporting high-value products such as seed grain or malting barley.
Suitability for different grain types and sizes increases system versatility. Optimized models are available for different grains such as wheat, corn, barley, rye, oats, and their ground forms. Spiral design can be adjusted according to different grain sizes and flow characteristics.
Providing continuous and efficient operation supports production continuity. Thanks to its solid mechanical structure and durable components, Screw Conveyor is suitable for long-term continuous operation. Its design requiring minimum maintenance reduces production downtime, providing efficiency increase.
Maintenance and Service Advantages
Design requiring low maintenance minimizes operating costs. Thanks to its simple mechanical structure and few moving parts, maintenance needs are quite low. High-quality materials and durable components extend maintenance intervals and reduce operating costs.
Easily accessible service points shorten maintenance time. Service doors placed at strategic points provide easy access to critical components such as spiral, bearings, and sealing elements. This feature simplifies maintenance operations while minimizing downtime.
Planned maintenance schedule and control procedures extend equipment life. Tanış provides a detailed maintenance guide with each Screw Conveyor. Periodic checks and preventive maintenance procedures enable early detection of potential problems, preventing unexpected failures.
Quick part replacement and service ease reduce production interruptions. Modular design and standard components facilitate part replacement. Easy-to-remove connections and access doors shorten service time, increasing production efficiency.
Spare parts supply and long-term support increase system reliability. Tanış A.Ş. provides quick supply capability by keeping all spare parts continuously in stock. With long-term product support, spare parts and service are guaranteed even for old models.
Frequently Asked Questions
What is the maximum incline that Screw Conveyor can work at?
Standard Screw Conveyor models can work inclined between 15-45 degrees depending on material type. While inclines up to 45 degrees are possible for free-flowing grains like wheat, maximum 20-25 degrees is recommended for products like flour or bran. Specially designed vertical screws should be preferred for steeper angles.
What are the factors affecting transport capacity?
The main factors affecting transport capacity are spiral diameter, spiral pitch, rotation speed, fill ratio, and physical properties of the transported material. Working at 30-40% fill ratio is recommended for optimum performance. Overloading increases energy consumption while shortening system life.
Is it suitable for transporting grains with high moisture content?
Yes, but special designs may be required for grains with very high moisture content (over 25%). Standard models work without problems up to 18-20% moisture. For high-moisture products, stainless steel housing and spiral, wider spiral pitch, and low fill ratio are recommended.
What should the maintenance frequency be?
Weekly visual checks, monthly bearing control and lubrication, comprehensive control every 6 months, and detailed annual maintenance are recommended. Maintenance intervals should be shortened for harsh working conditions or abrasive materials. Regular maintenance prevents unexpected failures while extending system life.
How can I integrate it into my existing system?
Screw Conveyor can be easily integrated into most existing systems thanks to standard flanges and adapters. Tanış engineering team provides technical support for existing system analysis and appropriate connection solutions. When necessary, special adapters or intermediate connection parts are designed to ensure seamless integration.
To get more detailed information about Tanış Screw Conveyor systems to optimize your mill and grain processing processes, please contact us. Our expert team is ready to offer customized solutions for your needs.