Doubrava’s discharging/batching conveyors are specially designed to discharge and batch material via a defined outlet from hoppers, silos, etc. Our batching conveyors achieve precise results by adjusting their speed as needed.

Our Conveyors are Used in:

• Plaster plants
• Cement plants
• Conveying plants
• Recycling plants

Our conveyors are available with belt widths of 400 to 2000 mm. Our belt conveyors employ either brackets with three rollers (angled between 10° and 45°), or flat roller beds.

Technical Data

Advantages:

• High flexibility thanks to modular system design
• High-quality components
• Special de-burdening of rubber seals
• In-house manufacture
• Range of different models possible
• Special model with rubber skirting

Extras:

• Electrical components such as speed monitors and material flow monitors
• Installation of conveyor belt scrapers
• Impact-softening material receiving platform in intake section
• Level monitoring in transfer section
• Enclosed skirting along entire length

Doubrava’s stockpile conveyors are designed for controlled stockpiling of all types of bulk materials. Our belts feature a large overhang, which makes it possible to build high-volume stockpiles. Slewing and luffing models are available; these are able to deposit materials accurately and carefully.

Stockpile Conveyors are Available:

• with a walkway
• enclosed (with rain or dust covers)
• stationary
• as slewing and rotating models

Technical Data

Advantages:

• Maximum slewing angle 340°
•  Slewing boom
• Use of high-quality parts
• The walkway makes it possible to reach all points along the conveyor belt

Extras:

• Enclosed skirting along entire length
• Stepped conduits
• Conveyor belt scrapers
• Return belt enclosures
• Speed monitoring, material flow monitoring, energy supplies, etc.
• Luffing and slewing

Doubrava’s double belt conveyors were specially developed for the vertical conveying of moist and adhesive bulk materials (FGD gypsum, lime, etc.), and ensure conveying homogeneity.

Using this technique, it is possible to overcome conveying challenges that even bucket elevators or conveyors with corrugated sidewall belts cannot meet. The material being conveyed is trapped between two belts, creating what is known as a lens, and transported directly upwards. Any residues on the belts are removed by scrapers or rotating brushes.

Technical Data

Advantages:

• Effective cleaning of belts
• Dust-tight thanks to the twin belts, which push towards one another
• Space-saving design
• The conveyor can be adapted to suit the operating environment

Extras:

• Electrical components such as speed monitors and material flow monitors
• Installation of conveyor belt scrapers
• Impact-softening material receiving platform in the intake section
• Level monitoring in the transfer section
• Enclosed is skirting along the entire length

Download:

Double Belt Conveyor Factsheet

Doubrava’s flat belt conveyors are in use across the globe, conveying all manner of bulk materials. They are available in four different designs: self-cleaning conveyors, shredder conveyors, throwing belt conveyors, and ball transfer conveyors.

Flat Belt Conveyors are Available in the Following Variants:

• with walkways (single or double)
• with rain or dust covers

Accessories such as weighers, metal detectors, overhead magnets and traveling trippers are available on request. For greater inclines, we employ conveyor belts with profiles, regardless of the material being transported.

Technical Data

Advantages:

• Low overall height
• High degree of flexibility thanks to modular design
• Customizable to meet customer requirements
• In-house manufacturing
• Great variety of models available

Extras:

• Drum motor
• Enclosed skirting along the entire length
• Rotating brushes to clean belts
• Reversible direction of travel
• Extraction system
• Return belt enclosures
• Speed monitoring, horns, warning lights, material flow monitoring, etc.

Doubrava’s hopper conveyors are in use across the globe, conveying all manner of bulk materials. The use of high-quality materials during manufacture and our extensive know-how of the development process ensure that our conveyors are characterized by both extremely wear-resistant transferring components and accurate belt trajectories.

Our Hopper Conveyors are Available in the Following Variants:

• with walkways (single or double)
• with rain or dust covers

Accessories such as weighers, metal detectors, overhead magnets and traveling trippers are available on request. For greater inclines, we employ conveyor belts with profiles, regardless of the material being transported.

Technical Data

Advantages:

• High degree of flexibility thanks to modular design
• Customizable to meet customer requirements
• Use of high-quality parts
• In-house manufacturing
• Ideal flow of materials thanks to functional transfer design
• Extremely wear-resistant transferring components
• Accurate belt trajectories
• Dust-tight model available

Extras:

• Drum motor
• Fluid coupling between gears and motor
• Enclosed skirting along the entire length
• Rust-free skirting
• Wear-resistant reinforcing in guttering and skirting
• Magnetic drum pulleys
• Impact-softening material receiving platform in the intake section
• Impact-softening skirting in transfer section
• Scraper systems
• Cleaning systems
• Reversible direction of travel
• Movable
• Transfer chute in throw section (steel or stainless steel)
• Trusses or bridge supports for larger spans
• Extraction system
• Return belt enclosures
• Weight tension station
• Speed monitoring, horns, warning lights, material flow monitoring, energy supplies, etc.

Doubrava’s package and bag conveyors are designed for package handling. They are available with or without covers and can be tailored to meet exact customer requirements – e.g. integration with weighers.

Technical Data

Advantages:

• High degree of flexibility thanks to modular design
• Customizable to meet customer requirements
• High-quality components
• In-house manufacturing
• Great variety of models available

Extras:

• Drum motor
• Reversible direction of travel
• Bag slide in the transfer section
• Speed monitoring, horns, warning lights, energy supplies, etc.

Doubrava’s powder conveyors were designed with plaster plants in mind. They were developed for the conveying of fine bulk materials with a particle size of 0.1 – 8 mm and are for the most part dust-tight.

Our powder conveyors feature double skirting along their entire length, enclosures, and extraction systems. They are available with or without walkways and have standard bandwidths of 650 and 800 mm.

Technical Data

Advantages:

• High degree of flexibility thanks to modular design
• High-quality components
• In-house manufacturing
• Great variety of models available

Extras:

• Electrical components such as speed monitors, material flow monitors, etc.
• Installation of conveyor belt scrapers
• Slip table in the intake section
• Reversible direction of travel
• Pneumatic gate in skirting

Doubrava’s pivoting conveyors can rotate approximately 300°, making precise depositing of bulk materials to a range of different points possible. Thanks to Doubrava’s flexible modular design, our pivoting conveyors can be easily combined with other components.

Band widths of 650-1200 mm are available; the maximum conveying capacity is 2500 t/h at speeds of up to 2 m/s. Our conveyors are available either with or without a walkway, and either with or without rain or dust covers.

Technical Data

Advantages:

• High degree of flexibility thanks to modular design
• Customizable to meet customer requirements
• High-quality components
• In-house manufacturing
• Great variety of models available
• Flexible transfer height

Extras:

• Enclosed skirting along the entire length
• Rust-free skirting
• Impact-softening material receiving platform in the intake section
• Belt scrapers
• Cleaning brushes
• Reversible direction of travel
• Movable
• Transfer chute in throw section
• Wear-resistant reinforcing in guttering and skirting
• Electrical components such as speed monitors, material flow monitors, energy supplies, etc.

Doubrava’s vertical conveyors are in use across the globe, conveying all manner of bulk materials vertically. They can be adapted to suit different operating environments, are characterized by high conveying capacities, and can overcome great differences in height, all the while suffering only very limited wear and tear.

Doubrava’s sidewall conveyors can be configured perfectly to suit their operating conditions (vertical and horizontal sections). They are made of four main components: a boot station, vertical cabinets, an ahead station with the drive motor, and a conveyor belt with corrugated sidewalls.

Technical Data

Advantages:

• Very limited wear and tear during vertical conveying
• Great vertical conveying height
• Conveyor requires less space than belt-based systems
• Long service life
• The conveyor can be adapted to suit the operating environment

Extras:

• Extraction system
• Return belt enclosures
• Speed monitoring, horns, warning lights
• Self-cleaning conveyor belt

Doubrava’s telescopic conveyors were developed primarily for package handling (25 or 40 kg bags from bagging machines, etc.) during the loading and unloading of ships. Thanks to the telescopic boom, the material transfer point can be chosen to suit the operating environment precisely.

Technical Data

Advantages:

• Exact loading of ships
• Optimal use of available storage capacity
• Quiet running
• Compact and low-maintenance design
• On-site controls

Extras:

• Drum motor
• Skirting along the entire length
• Bag slide in the transfer section
• A range of supports
• Luffing and slewing models
• Electrical components such as speed monitors, horns, warning lights, material flow monitors, energy supplies
• On-site controls

Doubrava’s trough conveyors and table-top conveyors are used primarily in the conveying of lightweight materials and recycling materials. As required, they can be equipped with slip tables or with belts with embedded rollers.

Doubrava’s conveyors are available with or without walkways, and with or without rain and dust covers. They can be customized to suit their operating conditions – e.g. integration with weighers or metal detectors.

For inclines greater than approximately 18°, we employ conveyor belts with profiles, regardless of the material being transported.

Technical Data

• Slip table surface
• Belt width 650–1200 mm
• Belt speed opt. 1.3 m/s
• Roller diameter up to 108 mm

Advantages:

• Customer-specific solutions
• High-quality components
• In-house manufacturing
• Great variety of models available

Extras:

• Drum motor
• Enclosed skirting along the entire length
• Rust-free skirting
• Magnetic drum pulleys
• Belt scrapers
• Brushes to clean belts
• Reversible direction of travel
• A range of supports
• Supports for extraction system
• Return belt enclosures
• Monitoring functions: speed monitoring, horns, warning lights, material flow monitors

Doubrava’s belt weighers were developed for the weighing of up to 10,000 kg of bulk materials. They are used primarily in concrete plants either after segment gates or for the purpose of batching and can be customized to suit their operating conditions.

Doubrava’s belt weighers are available in two variants – with fixed-point or variable-point weighing – and are designed for total weights from 2000 to 10,000 kg. Standard belt widths are 800, 1000 and 1200 mm. Conveyors with variable-point weighing can vary their speed, which ensures exact measurements.

Technical Data

Advantages:

• High degree of flexibility thanks to modular design
• High-quality components
• In-house manufacturing
• Great variety of models available

Extras:

• Electrical components such as speed monitors and material flow monitors
• Impact-softening skirting in the transfer section
• Reversible direction of travel
• Installation of conveyor belt scrapers
• Variable skirting height with wear-resistant reinforcing