Horizontal Screw Conveyor

Introduction of Horizontal Screw Conveyor

Horizontal screw conveyors are the most widely used type of screw conveyor. Used to convey bulk materials from one part of a process to another, horizontal screw conveyors are available in a wide range of sizes, lengths, configurations and materials of constr uction. Applicable to each A bulk material, including powders, granules, flakes, and other free-flowing materials. They can handle materials such as grain, cement, coal, chemicals, food, and more.

The screw diameter of Horizontal Screw Conveyor is from 100mm to 1250mm, there are five specifications, and the length is from 4m to 70m, every 0.5m. When working, Horizontal Screw Conveyor relies on the friction between the material, the pipe wall and the screw blade. Force forward the material.

Horizontal Screw Conveyor Type

1. Different materials:

Carbon steel screw conveyor: mainly used in cement, coal, stones and other industries with high wear and no special requirements for sanitation.

Stainless steel screw conveyor: suitable for grain, chemical, food, medicine and other industries that have requirements on the conveying environment. It has a high degree of cleanliness, will not pollute materials, has a long service life, and relatively high cost.

2. Different central axes:

Shafted horizontal screw conveyor: materials that are not easy to stick, and have certain friction. There are certain requirements for the wear resistance of the screw conveyor.

Shaftless horizontal screw conveyor: granular/powder materials, wet/paste materials, semi-fluid/viscous materials, easily entangled/easy to block materials, materials with special hygienic requirements.

How the Horizontal Screw Conveyor works

The working principle of the Horizontal Screw Conveyor is to use the gravity of the material and the friction generated with the tank wall, and the driving force of the screw to the material to realize material transportation.

The movement of the material in the intermediate bearing depends on the thrust of the material that continuously enters the pipe groove. Therefore, the transportation of materials in the conveyor is completely a sliding movement.

In order to make the screw shaft in a more favorable tension state, the driving device and the discharge port are generally placed on the same end of the conveyor, and the feed port is placed near the tail of the other end as much as possible.

The rotating helical blade pushes the material and conveys it. The force that prevents the material from rotating with the Horizontal Screw Conveyor blade is the material's own weight and the frictional resistance of the Horizontal Screw Conveyor casing to the material.

According to the different materials to be transported, the surface of the blade has solid surface, belt surface, blade surface and other types. The screw shaft of the Horizontal Screw Conveyor has a thrust bearing at the end of the material movement direction to give the screw axial reaction force with the material. When the length of the machine is long, an intermediate suspension bearing should be added.

Video

Multi-point feeding Horizontal Screw Conveyor to deliver grain on site

Single point feeding Horizontal Screw Conveyor conveying corn site

What are the advantages of a horizontal screw conveyor?

1.Versatility: Horizontal screw conveyors are versatile and can handle a wide variety of bulk materials, including powders, granules, flakes, and other free-flowing materials. They can be used in industries such as food processing, agriculture, mining, chemical processing, and more.

2.Efficient material transportation: provide efficient and reliable material transportation. The rotating helical blades create a continuous forward motion that ensures a steady flow of material from the feed end of the conveyor to the discharge end.

3.Compact footprint: relatively small footprint, suitable for installations with limited space. They can be easily integrated into existing production lines or configured to fit in restricted areas.

4.Gentle handling of materials: Allows for gentle handling of materials, minimizing product degradation or damage. This is especially important for fragile or sensitive materials that need to be transported without excessive agitation.

5.Cost-Effective Solution: Horizontal screw conveyors are often cost-effective when compared to other material handling systems. They are relatively simple in design, require minimal maintenance, and are inexpensive to install, especially for short conveying distances.

6.Easy Maintenance: Easy to maintain and clean. Access points such as inspection ports or removable covers are incorporated into the design to facilitate cleaning, inspection and maintenance of conveyor components.

What is the difference between vertical and horizontal screw conveyor?

The main difference between a vertical screw conveyor and a horizontal screw conveyor lies in the orientation and purpose of material transportation. Here are the key distinctions between the two:

Difference	Horizontal Screw Conveyor	Inclined Screw Conveyor
Image
Orientation	Used to convey product horizontally from Conveying material horizontally from one place to another. It moves material along the horizontal plane. one location to another	For conveying material vertically, from a lower level to a higher level.
Material Flow	28-800m Material flows in a linear fashion along the length of the conveyor. The spiral blade pushes the material forward, pushing it horizontally from the feed end to the discharge end. ³/h	Material flows in vertical or inclined direction. The helical blades lift material from a lower level to a higher level or lower material from a higher level to a lower level, depending on the application.
Design Considerations	Usually designed with U-shaped or rectangular slots to accommodate rotating helical blades. The design focuses on efficiently conveying material along the horizontal plane, taking into account capacity, speed and material characteristics.	There are additional design considerations to ensure efficient vertical transport. They may include features such as tubular housings, shaftless screws, or special flight designs to meet the challenges of vertically lifting or lowering materials.
Application	It is often used for short-distance horizontal material transportation. They are used in various industries such as food processing, agriculture, mining and construction where materials need to be moved horizontally between different processing stages or storage areas.	It is specially designed for vertical material conveying. They are used to lift material to a higher height, such as filling a silo or silo, or to lower material to a lower height, such as discharging from a storage container.

Structure of Horizontal Screw Conveyor

The horizontal screw conveyor is mainly composed of a driving device, a head assembly, a casing, a shaftless screw, a trough lining, a feeding port, a discharging port, a cover (when necessary), and a base.

1. Driving device: Cycloidal pinwheel reducer or shaft-mounted hard-tooth surface gear reducer is used. In the design, the driving device should be set at the end of the discharge port as much as possible, so that the screw body is in a tension state during operation.

2. The head is equipped with a thrust bearing, which can bear the axial force generated when conveying materials.

3. Chassis: The chassis is U-shaped or O-shaped, with a rain-proof cover on the upper part, and the material is stainless steel or carbon steel or glass fiber reinforced plastic.

4. Spiral body: It is divided into two types with shaft and without shaft, and the material is stainless steel or carbon steel.

5. Tank lining board: the material is wear-resistant plastic plate or rubber plate or cast stone plate, etc.

6. Inlet and outlet: There are two kinds of square and round. Generally, the form of inlet and outlet is determined by the user.

Technical Parameters

Model	Spiral diameter (mm)	Screw-pitch (mm)	Speed (r/min)	Capacity (m³/h)
LS-100	100	100	140	2.2
LS-160	160	160	112	7
LS-200	200	200	100	13
LS-250	250	250	90	22
LS-315	315	315	80	31
LS-100	100	355	71	56
LS-500	500	400	63	98
LS-630	630	450	50	140
LS-800	800	500	40	300
LS-1000	1000	560	32	280
LS-1250	1250	630	25	380

Application

Food Processing: Used to transport raw materials such as grains, flour, sugar, spices and other food products between processing equipment or from storage to production lines. They ensure smooth and controlled transfer of materials while maintaining food hygiene and preventing contamination.

Agriculture: In agriculture, horizontal screw conveyors are used to handle bulk materials such as grain, seeds, fertilizers and animal feed. They are commonly used to move these materials between storage facilities, processing equipment and transport vehicles.

Mining and Quarrying: Used to transport a variety of materials including ore, minerals, coal, gravel and sand. They are used to transport material from mining operations to processing plants, loading points or storage bins.

Chemical processing is used in chemical processing plants to convey powders, granules and other bulk materials. They facilitate the movement of chemicals, additives and raw materials between different processing units such as mixers, reactors, dryers and storage facilities.

 

Construction and building materials: Used in the construction industry to transport materials such as cement, sand, gravel and aggregates. They are commonly used in concrete batching plants, brick manufacturing plants and other construction sites to move these materials between production processes or storage areas.

Waste Management: Used to handle and transport solid waste such as municipal solid waste, recyclables and industrial waste. They facilitate the efficient transfer of waste from collection points to sorting, processing or disposal units.

product upgrade

1、water cooling system：

It is used to deal with materials with too high temperature, and it can cool the materials at 600 °C to 50 °C and below during the transportation process.

2、double helix shaft：：

Two spiral shafts are designed to convey in the same direction and rotate in the opposite direction in the pipe groove. They are mainly used to convey bulk materials that are difficult to flow. At the same time, they have the functions of crushing, mixing and loosening, and the conveying capacity is increased by 1.5-2 times.

Solutions by Industry

• Horizontal Screw Conveyor for waste disposal

  

  Conveying material: industrial waste

  Equipment used: Horizontal Screw Conveyor

  Application: The three feeding ports of the Horizontal Screw Conveyor are directly connected to the feeding equipment, and they are installed under the production platform without occupying any space. The upper groove cover can be removed to solve the problem of material blockage in time.

• Horizontal Screw Conveyor applied to sewage pretreatment

  

  Material to be conveyed: Coarse substances in the wastewater stream

  Equipment used: U-shaped Horizontal Screw Conveyor

  Application: The Horizontal Screw Conveyor collects and transports solid waste deposits from treatment separation storage facilities to the ideal storage or transport location, keeping the operating costs of the pretreatment system to a minimum.

• Horizontal Screw Conveyor for Feed Production

  

  Conveying materials: feed raw materials

  Equipment used: Horizontal Screw Conveyor

  Application: In feed production, in order to ensure that nutrition needs to be added to various feed materials in proportion, the application of Horizontal Screw Conveyor can be connected with the feed distributor to ensure continuous and uniform delivery of various materials to the mixing device, ensuring the convenience of feed production. and traceability.

Manufacturer communication

How to choose a suitable Horizontal Screw Conveyor?

Dahan Machinery is a Horizontal Screw Conveyor manufacturer from China with 15 years of business experience, we are happy to tell you some selection points:

1. What bulk materials do you need to convey? What is their material and state?

2. What conveying capacity do you need per hour and what is your material feed?

3. Design conditions such as material conveying distance, Horizontal Screw Conveyor material, feeding and discharging conditions, and working temperature?

We provide you with professional selection guidance, machine design and considerate after-sales service. Consult now for more information.