Screw Feeder Conveyor
Your Professional Screw Feeder Conveyor Supplier
Taizhou Rongya Machinery Equipment Co., Ltd. is a professional manufacturer of various types of fully automatic high-speed hollow blow molding equipment. Our machines are suitable for processing plastic hollow container parts made from a wide range of materials, including PE, PVC, PP, PC, PETG, PS, EVOH, PVDC, PAN, PA, PPE, PPO, ABS, POM, TPE, and TPU.
Why choose us
Sales Market
Our products are exported to Europe, Africa, South Africa, and Asia.
Quality & Performance
We provide products with better durability, efficiency, and functionality.
High-quality materials and advanced technology make our products more reliable.
Perfect Service
We offer excellent service throughout your production process. Our 24-hour professional support line is available to guide you through common process and equipment issues. If necessary, we will dispatch service engineers to provide on-site assistance—wherever you are.
Certifications
Our products have passed CE certification, ISO 9001 quality management system certification, design patents, and other international certifications.
Screw Feeder Conveyor
Screw Feeder Conveyor, also referred to as auger conveyors, are industrial machines meticulously engineered to efficiently move large quantities of granular materials like powders, grains, and granules. They can also transport semi-solids, liquids, and materials that do not flow easily. By eliminating the necessity of manual material handling, they significantly boost operational productivity. The fundamental parts of a screw conveyor include a rotating screw shaft placed inside a trough. When this screw shaft rotates, it propels the material forward in a straight path. Screw conveyors can be set up for transportation along horizontal, vertical, or inclined routes.
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Name |
Automatic Screw Conveyor |
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Machine structure |
Full 304 stainless steel |
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Conveying capacity |
3cbm/h ,5cbm/h 7cbm/h,12cbm/h |
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Diameter of pipe |
φ114mm;φ141mm;φ159mm;φ219mm |
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Pipe angle |
45 Degree,30degree,60degree |
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Discharge Height |
Customization |
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Hopper size |
60L-400L |
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Power |
0.81kw~ 2.5kW |
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Voltage |
3-Phase, 380V, 50-60Hz |
Benefits ofA Screw Feeder Conveyor
Versatility: Screw Feeder Conveyor are exceptionally versatile, capable of transporting materials in various orientations. They can move materials horizontally across long distances, vertically to higher elevations, or at an incline to fit specific plant configurations. This adaptability makes them suitable for diverse applications across multiple industries.
Efficiency: Screw Feeder Conveyor greatly improve bulk handling processes by automating material transportation. This automation reduces the need for manual labor and decreases the time needed to move large quantities of product, resulting in faster and more efficient production cycles. Their continuous movement ensures a steady flow of materials, enhancing overall operational efficiency.
Flexibility: Screw Feeder Conveyor provide versatility in both plant layout and design. They can be tailored with multiple inlets and outlet points, enabling them to serve diverse locations throughout a facility. This adaptability ensures efficient routing of materials to various processing or storage areas, thereby optimising workflow and effectively managing resource allocation.
Material Handling: Screw Feeder Conveyor excel in managing a diverse array of materials, including fine powders, sluggish substances, and those with intricate or irregular shapes. Their ability to handle challenging materials, which might otherwise clog or disrupt other conveyor types, can be enhanced by removing the central pipe. This adaptability makes screw conveyors particularly suited for industries working with a wide variety of unconventional materials.
Space Utilisation: Screw Feeder Conveyor can be customised to integrate seamlessly into your plant layout, effectively utilising available space. They offer flexibility in terms of length, diameter, and configuration options, allowing them to be tailored to specific operational requirements. By integrating screw conveyors into the plant design, you can maximise space utilisation and streamline production processes.
Maintenance: Screw Feeder Conveyor are engineered with maintenance considerations, often featuring drop bottoms and self-cleaning functionalities. Drop bottoms facilitate the effortless removal of residual materials, thereby simplifying the cleaning procedure. Self-cleaning mechanisms contribute to sustained operational efficiency by minimising downtime and preventing the accumulation of debris and obstructions within the conveyor system.
Type of Screw Feeder Conveyor
Inclined Screw Feeders
These screw feeders elevate bulk material from bins, silos, or hoppers just like a horizontal screw feeder. Two factors are considered in the design of an inclined screw feeder to determine the maximum angle of recline, which are flow-ability of bulk material, and angle of repose.
Live Bottom Screw Feeders
These are designed for large hoppers, bins, and silos or those with large discharge openings. Multiple feeder screws are used simultaneously, creating the aptly-named “live bottom” which prevents bridging of bulk material. It is, therefore, the best screw feeder to use for material that bridges or packs easily.
Multiple Diameter Screw Feeder
These have a screw feeder that has an extension conveyor. A screw feeder with a smaller diameter located under a hopper, bin, or silo is flood loaded and then feeds the extension conveyor with a larger diameter. The trough loading decreases when bulk material reaches the extension conveyor and is conveyed to the discharge.
Grain and Agricultural Products: Agriculture and grain processing industries usually need screw conveyor feeders to transport agricultural products such as grains, cereals, grains, feeds, seeds, etc.
Chemical and pharmaceutical industry: Screw Feeder Conveyor can transport chemical raw materials, powders, granules, pharmaceutical ingredients, and materials that require precise metering in chemical processes.
Construction and Material: In the construction and material handling industries, people usually use screw conveyor feeders to transport sand, cement, concrete, stone, gypsum, and other construction materials.
Food and Beverage Processing: In the food and beverage industry, it is convenient for manufacturers to transport food ingredients, powders, granules, sugar, flour, biscuits, and other food products.
Environmental Protection and Waste Disposal
Screw Feeder Conveyorcan handle waste and waste materials such as sludge, garbage, discarded materials, etc. for processing and recycling effectively.
Oil and Gas Industry
In oil and gas exploration and production, Screw Feeder Conveyor transport oilfield chemicals, powders, granules, and other raw materials.
Medical Device Manufacturing
In medical device manufacturing, medical personnel use Screw Feeder Conveyor to deliver medical raw materials, pharmaceuticals, and manufacturing materials.
How it works
The process of a Screw Feeder Conveyor is as described below:
A Screw Feeder Conveyor helps to move bulk material from one flight to the next in line with each revolution it makes. When the screw is loaded at 100% capacity and the amount is the same for each flight, it’s only possible to add new material to the first flight under the device used for the storage of bulk material.
A well-constructed screw feeder, therefore, is one in which each flight increases in available volume as the screw progresses to the discharge point.
When the Screw Feeder Conveyor is designed with a uniform outside diameter and constant pitch, the material will fill the screw from the end of the inlet. It will lead to stagnant material and rat-holing, even bridging material above the screw feeder.
The Safe Operation Of Screw Feeder Conveyor
The Screw Feeder Conveyor should start without load. This means the operator needs to start the machine when there is no material in the screw conveyor feeder hopper.
Check the direction of the screw’s rotation in the delivery pipe. The opposite may occur if your power supply is three-phase, but this is normal. Just turn the red knob in the opposite direction.
Do not mix hard bulk materials into the conveying material. This may cause the screw to become clogged or even cause damage to the screw conveyor.
The black knob is the vibration knob. The operator needs to turn the vibration knob to activate the vibration function. Therefore, it is normal for the powder on the hopper wall to slide under the action of vibration.
When conveying other materials, please first unload the remaining powder in the conveying pipe. There is a valve underneath the delivery pipe. Open the valve, adjust the working state to the opposite direction, and discharge the powder from the delivery pipe. This operation can effectively avoid cross-contamination.
Different designs of Screw Feeder Conveyor
Design of a Screw Feeder Conveyor mainly depends on:
●The maximum and minimum feed rates of the process
●The full length of the screw feeder
●The flow characteristics of the material being metered and stored
●Length and width of the screw feeder’s inlet opening
●The density of the bulk material
●Height of bulk material in the screw feeder hopper, silo, or bin
●The size of the bulk material
With these considerations in mind, the basic components of a typical screw feeder are the screw itself, a trough, trough ends, discharge, shroud, inlet, drive unit, and cover. And based on the composition of these components, there are three main screw feeder designs that are as outlined:
Tapered Outside Diameter Design
For this design of the screw feeder, the screw’s outside diameter is tapered from the rear end of the inlet’s opening to the shroud. It creates a large volume in the screw feeder for adding bulk material from the hopper.
Stepped Pitch or Variable Design
This design features a screw pitch that varies from a short length to a longer one as it progresses towards the screw feeder’s discharge. For the variable pitch design, the length of every pitch increases in the inlet, creating more volume to which bulk material can be added. For the stepped pitch design, flight pitch changes in increasing lengths. For instance, there may be two feet of one-third pitch each, then two feet of two-thirds pitch, and so on.
Mass Flow Design
This screw feeder design is a combination of tapered inside diameter and variable pitch. From the rear of the inlet opening of the screw’s center pipe to the center of the inlet’s opening is a tapered cone. Flights with short pitches are mounted on this tapered cone, availing more volume for the addition of bulk material. Variable pitch is then introduced to the screw where the cone ends and continues to the discharge.
Maintain
Maintenance Guidelines For Screw Feeder Conveyor Are As Follows:
Periodically inspect the Screw Feeder Conveyor screw shaft, bearings, transmission, seals, and support structure for any damage, wear, or looseness. Check whether the electrical system connections are normal.
Pay attention to whether the screws between the electromagnet and the coupling are loose. If this phenomenon is found, stop the machine immediately and tighten it.
Disabling or installing the Screw Feeder Conveyor, disconnect the power supply immediately to avoid accidents.
Clean the inside and outside of the Screw Feeder Conveyor regularly. Remove accumulated material, dust, and dirt. Ensure the surfaces of the screw shaft and screw blades are smooth to reduce material adhesion.
If the Screw Feeder Conveyor uses a belt drive, regularly check the tension and wear of the belt and replace it if necessary.
When abnormal phenomena occur during the operation of the screw conveyor, professional technicians should check or consult to troubleshoot the problem, and no forced operation is allowed.
Lubricate bearings, gears, and other moving parts regularly according to manufacturer’s recommendations. Use the appropriate type and amount of lubricant.
FAQ