Don Valley Engineering Co Ltd

Higher Feed Rate − Smaller Footprint − Higher Efficiency − Lower Power

Don Valley Engineering Banana Screens employ the latest technology in multi-angle machines which are capable of achieving exceptional throughputs for relatively small screening areas. The screens include a number of different screening angles with a wide variety of deck types and apertures to meet the particular process requirements.

Banana Screens are sometimes also known as Multi Angle Screens or Multi Slope Screens. The Don Valley designs will accept most types of deck system including polyurethane, punched steel plate and wedge wire.

Screens vary in size from 1600mm wide to 3400mm wide with masses up to 28 tonne.

- Heavy Duty Screens for Heavy Duty Applications
- Designed for all Screening Applications

The Banana Screen benefits from utilising linear motion combined with high vibration amplitude and high acceleration over the screen deck. This makes the Banana Screen suitable for a variety of applications. These combined features also reduce the possibility of blinding and pegging.

Our range VS type dewatering screens has been designed specifically for the drainage of wet, often fine minerals, from the carrying fluid. To do this they employ a number of features including a sloping back panel to dewater the feed as it arrives at the machine, a rising inclined dewatering deck to create a deep dewatering zone from which the solids are extracted by the action of the machine, and variable height barriers to aid dewatering of the extracted mineral prior to discharge.

VS type dewatering screens are produced in a number of standard sizes to meet typical production requirements and they can operate at high frequency when required by the process.

FAST EXCHANGE − MINIMUM DOWN TIME − COMPATIBILITY − QUALITY

Don Valley Engineering provides an excellent service exchange programme for most types of vibrating screen exciter units. Our commitment to holding a significant stock allows customers the facility to change-out screen exciters with the minimum fuss and disruption to production.

Our large customer base for service / exchange of screen exciters demonstrates the quality and effectiveness of the service we provide.

FLAT DECK SCREENS
- Manufactured in the UK
- Spare Parts always in Stock
- Exciter Units refurbishment / exchange service
- Immediate Service Response from our own Engineers

Flat Deck Screens designed for all Screening Applications:
- Single Deck Screens, Twin Deck Screens, Triple / Multi-Deck Screen
- Multi Angle Screens, Banana Screens, Quarry Screens,
- Coal Screens, Potash Screens, Wash Screens, Wet Screening

The World’s Best Linear Motion Vibrating Screens

Don Valley Engineering Ltd is a world leader in the design and manufacture of some the world’s largest and most robust Linear Motion Vibrating Screens. Known as Horizontal Screens or Flat Deck Screens, we manufacture all our screens in our UK factory. The design, heavy-duty construction, efficiency and reliability of our vibrating screens, provide unbeatable cost-of ownership, and over 20 years lifespan is common.

Bespoke Vibrating Screen Solutions

Don Valley Engineering always provides bespoke screens exactly to suit process requirements. This unequalled flexibility confirms our commitment to our customers, and our position as a leader in the world of screening.

ENERGY EFFICIENT − HIGH CAPACITY − LOW MAINTENANCE − ISOLATED

Industries:-
- Coal
- Steel
- Ore Preparation
- Stone
- Phospates
- Sand & Grav

Applications:-
- Pre-screening
- Coarse Screening
- Classifying
- Secondary Screening
- De-watering

Resonance screens are particularly useful in large and heavy screening installations of high capacity and output. They operate at high intensity and their fields of application range from large size screening to the screening of fines. Simple, rugged construction is a feature of Don Valley Resonance Screens which, combined with the large cross sectional area of the rubber parts, ensures long life. The working characteristics are capable of adjustment to provide the maximum screening efficiency for any given product. Two or more screen frames can be assembled in line to operate as one complete unit.

Coal, Coke, Iron ore, Stone, Limestone, Sand and Gravel, Scrap Metal… just some of the applications for Don Valley Engineering Heavy Duty Apron Feeders.

Heavy Duty Apron Feeders are used for volumetric feeding of material from bunkers, bins or stockpiles, and they can be configured to suit a specific application.

The machines are designed and built to operate continuously in extremely arduous conditions with high impact loads, and with coarse and abrasive materials.

As well as our standard Apron Feeder designs offering widths from 1000mm to 2500mm, we also produce a range of bespoke Apron Feeders to suit special applications. Additionally, our Feeders can be either positively or negatively inclined.

Let Don Valley Engineering design a bespoke Apron Feeder for your application.

Horizontal and Inclined Belt Feeders are predominantly used for extracting bulk materials from bunkers, hoppers and stock piles or for regulating feeds to screens, conveyors and crushers. They provide volumetric regulation of feed materials to prevent surges / choking.

Basic Design
Don Valley Belt Feeders incorporate a robust rolled steel chassis on which are mounted the drive and tail pulleys, along with the tail pulley tensioning device, belt idlers and skirt plates. Discharge chutework and fines-spillage chutework can also be mounted from this steel frame.

Control Philosophy
Belt Feeders regulate the flow of product based on material volume or weight:-
- The belt speed and the output restrictor gate can be adjusted to provide an even volumetric feed
- A belt weighing scale located on a conveyor downstream can provide feedback to the drive, controlling the tonnage
- Rod Gates can be used to isolate the feed for maintenance

Vibrating Feeders (or Vibratory Feeders) are used for transferring bulk materials from hoppers, bins, crushers, etc. in a variety of applications including in the Chemical, Coal Mining, Foundry, Quarrying, and Iron and Steel industries. Don Valley Engineering manufactures a range of Vibrating Feeders with capacities ranging from100 t.p.h. to 2500 t.p.h. They can either be floor mounted or suspended from cables with steel or rubber isolation springs, and designed to suit layout and access requirements.

BENEFITS
- Reduced Stresses on Machine and Supporting Structure
- Reliable Operation
- Low Maintenance
- Durable, Long Operational Life
- Minimal Downtime and Servicing Costs
- Impact Reduction on Environment & Safety
- Low Operational Costs
- Environmental Benefits
- Easy to adjust
- Easy Access for Adjustment and Maintenance
- Quick and Cost-effective to maintain
- Ingress Prevention

We design and manufacture the most efficient and robust vibrating coarse coal centrifuges and scroll centrifuges for the most demanding applications around the world.

Advantages of the Don Valley Engineering Coarse Coal Dewatering Centrifuge:-
- Capacities up to 300 t.p.h.
- Continuous separation of solids from liquids
- Proven high-efficiency dewatering ability
- Overload protected self-cleaning system
- Easy access and maintenance
- Lubrication failure cut-out (HSG Series)
- Full Service Support
- Spare Parts and Baskets always in Stock
- Full Design and Installation Service

Our commitment to product development has resulted in our most recent coarse coal dewatering centrifuges providing increased economic savings, through the improved reduction of moisture from coal, and a wide range of minerals.

Through excellence in design and engineering, these fully self-contained machines require only support structures and feed / discharge chutes, all of which can be included in a complete installation and commissioning package, provided by Don Valley Engineering or our regional representatives.

HORIZONTAL VIBRATING CUTTINGS CLEANING EQUIPMENT

MUD 10 and MUD 8 Applications

- Reduction and recovery of SOBM from drill cuttings prior to discharge offshore
- Reduction and recovery of OBM from drill cuttings prior to discharge offshore
- Recovery of OBM from drill cuttings prior to shipping for onshore disposal, reducing volume and disposal costs
- Recovery of OBM from drill cuttings produced on land based OBM operations, reducing transport and disposal costs
- Increasing capacity of thermal treatment systems

Reliable − Durable − Efficient − Compatible

Don Valley Engineering manufactures what many consider to be the best Wedge Wire Centrifuge Baskets available, and they can be made to fit almost all brands of centrifuges. They are designed for continuous operation in the most arduous of conditions, and they are the preferred choice of those who require quality, efficiency, durability, reliability, and the support of a partner who has the knowledge and experience to help customers get the best from their operations.

We always have a range of standard wedge wire centrifuge baskets in stock, and we also manufacture compatible baskets for the majority of of centrifuge ‘brands’ in operation around the world.

Centrifuge Baskets − Wedge Wire Baskets

Don Valley centrifuge wedge wire baskets are manufactured to suit horizontal and vertical centrifuges of both vibrating and scroll types.They utilise rotational and / or axial forces to achieve a high degree of moisture removal and throughput, whilst having minimal space requirements.

The unique construction features of the Don Valley wedge wire centrifuge baskets ensure that large open areas for maximum dewatering capacity are maintained while providing long life. Unrestricted passage of liquid, with the minimum of blinding or clogging, is maintained throughout the life of the basket by using screen panels of welded wedge wire. This enables any process fluids and undersize material particles to pass freely through.

We can provide a wide range of modular belt conveyor systems, each type having been developed to suit a particular range of duties and applications. The range covers the requirements of virtually every industrial sector.

This range of modular belt conveyors are noted for their robustness, reliability and high performance, and as a result of their proven performance they are installed in major quarries, mines and process plants around the world.

Some of the main benefits:-
- Excellent value and cost of ownership
- First class customer support
- A full range of duties to suit all applications
- Modular drive, intermediate and tension sections
- Wide choice of propriatory components, to suit customer specifications
- Wide range of belt widths and types
- Choice of protective finishes
- Suitable for a very wide variety of products

SUPERVEYOR

The SUPERVEYOR is a versatile belt conveyor which can be adapted to a multitude of applications.

The main features are:-
- Excellent value and cost of ownership
- Very heavy duty
- Modular drive and tension sections
- Modular intermediate sections to suit the installation
- Wide range of belt widths and types
- Choice of weather/protective covers
- Suitable for a variety of products

ADVANCED-TOUGH-RELIABLE-COST EFFECTIVE

Don Valley Engineering builds Scraper Conveyors for the toughest conditions and for handling the most difficult of materials. If you require machinery of solid, reliable, ultra-durable construction coupled with advanced, proven design and improved cost/stock-control on wear parts, you have just found it − right here.

ADVANTAGES OF DON VALLEY ENGINEERING SCRAPER CONVEYORS

- No spillage or dust problems
- Mixing and blending of material conveyed.
- Hot, sticky or abrasive material easily handled.
- Conveying angles up to 45°.
- Suitable even for submerged operation
- Facilitates bunker extraction and proportioning distribution.
- Low headroom requirements
- Conveyors built exactly to customer requirements

Our Mk1 Chain represents a significant development over traditional chain. It is the result of the extensive knowledge gained from design, build and the close operational monitoring of machines for transportation of bulk materials, particularly where difficult materials require handling, and/or arduous conditions exist.

When storage or material throughput requirements are low DVE is able to offer a range of FIBC unloaders or bulk bag discharge storage solutions. Offering two main types depending on level of automation, labour availability and budget amongst other criteria. The first type has an integrated lifting frame for forklift or internal crane lifting. The second type has a cantilevered I beam with electric hoist. However dependent on process requirements DVE will work with a range of suppliers to develop the right big bag unloading solution.

Key benefits of Don Valley Engineering

- Cost effective solutions − for plants looking to improve productivity or increase scalability
- Process understanding and abulity to reduce your operating costs
- Improved environmental controls − reducing dust and product loss
- Improved plant hygiene − improving plant working conditions

Material Feeder concept to satisfy the demands of clients requiring a mobile solution to receive general bulk materials such as Coal, Aggregates and Alternative Fuels direct from tipping trucks.

- No deep pits
- No underground hoppers
- No expensive civil works
- Flexibility of location
- One piece integrated machine
- Receives direct from trucks
- Receives direct from shovels
- Controlled rate feeding
- Handles dry and dusty materials
- Easy maintenance
- Handles wet and sticky materials
- Reduced dust generation
- No risk of bridging or blockage
- Reduced energy consumption
- Fast truck discharge
- Easy housekeeping access
- Reliable in service
- Proven reference worldwide

Don Valley Engineering provides a bespoke service for individually designed Bunkers and Bulk Storage solutions to suit all project requirements. Our engineers have extensive knowledge and experience to understand your requirements and can provide you with product-specific plant design for Rail, Lorry, Barge and Ship Loading & Unloading equipment, and for transfer of materials ranging from Grain to Sand to Aggregates and Coal. We know from experience that each product requires a different approach to obtain the optimum handling performance and return in value for money. Don Valley Engineering systems are of the highest build and design quality, thus providing reliable systems which represent excellent long-term cost of ownership.

DVE can supply a range of quality, highly reliable discharge and high-performance silos to suit all types and quantities of material and the specific requirements of your process. Most of our silos are designed bespoke to address the needs of specific projects or customer requirements. They will be tailored to the type, quantity and critically the characteristics of the material to be stored.

Choice of Silo Materials

Each silo can be designed specifically for your project, and you can choose from carbon steel, stainless steel or aluminium, depedning on the nature of the material you wish to store and your budget.

All DVE silos are designed in to comply with the latest BSI, ISO, DIN and VDI standards for example EN1090. Our silos are available in capacities to suit your needs, from as little as 10m3 up to >2,500m3. We can supply silos suitable for storing all types of bulk material.

DVE can offer a range of hopper sizes and geometries to fit your industrial process requirements and different material properties. A wealth of experience applying small vessels into a range of end-user sectors, from dosing hoppers, to loss/gain in weight bins, to gravimetric blending bins to volumetric hoppers DVE can design low volume permanent storage bins using different materials of construction, suitable for your sector and application.

Operating in a number of key heavy and light industries our Storage Hoppers and Bins have been applied successfully for a number of years. The majority of our bins are designed specially to meet the needs of individual projects, tailored to the type, quantity and characteristics of the material to be stored.

Key benefits of Don Valley Engineering

- Experience of handling range of materials and processes
- Designed and manufactured to the latest design codes, ensuring ongoing compliance
- Quality manufacture and sourcing, reducing ongoing operational costs