Dredge Yard and HyperWorks co-operate for the design and engineering of dredge and mining pumps

Dredge Yard, a company dedicated to engineering, consulting and production of dredgers, dredging and mining equipment and technology and Altair HyperWorks, market leader in engineering, simulation and software of fluid dynamics, have teamed up on the design, calculation and simulation of dredge and mining pumps and dredge installations.

HyperWorks has extensive knowledge and skills in engineering, simulation, and software packages and is capable of calculating and simulating different types of pumps and fluid installations to the finest details, while Dredge Yard has the knowledge and practical experience in dredge and mining pumps.

 

Dredge Yard will be using the technology of Altair HyperWorks for the design, simulation and calculation of dredge and mining pumps. Altair HyperWorks will train several engineers from Dredge Yard in its facilities in USA and India.

 

This will allow Dredge Yard’s engineers to make best-in-class modeling, analysis, visualization and data management solutions for linear, nonlinear, structural optimization, fluid-structure interaction, and multi-body dynamics applications.

Dredge Yard will use the simulation technologies to improve design efficiency, wear performance, to reduce physical testing costs and time that have always been the biggest engineers’ challenges in Dredging Industry.

For more info visit Dredge Yard

Iulia Berchiu

 

Dredge suction mouth, a new product developed by Dredge Yard

Dredge Yard, a specialized company in dredging technology and dredging equipment based in the Netherlands and United Arab Emirates has announced the launch of the dredge suction mouth. The dredge suction mouth is a dredge component positioned behind the cutter head of a Cutter Suction Dredger during extraction of non-cohesive material from the see bed.

Dredge Yard team of engineers designed the dredge suction mouth using the latest 3D CAD technologies, latest production methods and they entirely scrutinized the designs using Finite Element Analysis. External and internal forces are examined and all maximum possible scenarios are simulated.

In order to provide the most reliable dredge equipment with high accuracy and precise dimensions to fit in the cutter head and the suction pipe, Dredge Yard is using only one cast piece for the production of the dredge suction mouth that eliminates many operations, such as machining, forging and welding. Casting the suction mouth in one piece allows producing the most intricate shapes, both external and internal that can follow the shape of the flow. In this way competitive prices and shorter delivery times can be achieved.

The dredge suction mouths as well as the other components are designed, produced and tested under strict ISO and ASTM standards and double tested at third party for verification.

The following materials are being used according to the customer’s requirements: Carbon Steel that allows easy welding and hard facing if required; Carbon Manganese Steel that increases depth of hardening and improving the strength and toughness; and Alloy Steel in order to obtain higher performance in wear resistance.

Dredge Yard performs numerous testing that occur during and after production process of the dredge suction mouth. Before making the pattern, casting simulation software is run to verify that all thickness, curves and radii will be obtained and the material will cool down in a good way preventing internal and external shrinkages. For all casting the mechanical and chemical properties are verified at the third party. A final inspection is performed by the Dredge Yard team of quality control in order to assure that the product is according to customer’s and Dredge Yard’s specifications.

After inspection, the cast surfaces are painted while the machined surfaced are greased. Dredge Yard team supervises the packing and transport to ensure the release of products in the right way.

Sizes of dredge suction mouth vary according to the customer’s dredgers, dredge cutter heads and dredge pipe arrangements.

To find more detailed information, the Dredge Suction Mouth Brochure can be downloaded from Dredge Yard website www.dredgeyard.com

Dredge Ball Joint

Dredge Yard ball joints are designed by using the latest CAD technologies, production methods and testing facilities in Europe and the Republic of Turkey.
To provide customer with the best suitable solution and lowest cost , Dredge Yard ball joints are designed in six different types, giving variations of tilting angle from 15 to 18 degrees and duties from 10 bar to 30 bar.


All dredge ball joints are designed, produced, assembled, tested, painted, greased, packed and transported under close super vision of Dredge Yard team of engineers and quality control. Dredge Yard emphasizes on after sales and ensures total customer satisfaction.
Dredge Yard ball joints are designed, produced and tested under strict ISO and ASTM standards and double tested at third party for verification.

Dredge ball joint types

Tilting angle of 15 degrees

• Low Duty for operating pressure of 10 bar
• Medium Duty for operating pressure of 20 bar
• Heavy Duty for operating pressure of 30 bar

Dredge Ball Joint

Tilting angle of 18 degrees

• Low Duty for operating pressure of 10 bar
• Medium Duty for operating pressure of 20 bar
• Heavy Duty for operating pressure of 30 bar

Dredge ball joint features

• Grease grooves provided in the gland
• Stiffened dredge ball joint case lugs
• Quick fix and release locking using a pin and chain connection
• Pipe welded through ball
• Maximum thickness provided at the neck of the ball joint

Dredge ball joint benefits

• Easy assembly and disassembly
• Low maintenance required
• Low friction between ball and gland due to grease grooves and polished ball and gland face
• Replaceable liners made from wear resistant materials
• Quick fix and release of locking

Dredge ball joint materials

• Case: cast iron of a manganese alloy providing high elongation and impact value
• Ball: cast iron of a manganese alloy providing high elongation and impact value
• Gland : cast iron of a chromium, nickel and molybdenum alloy providing a high tensile, high yield and high hardness values.
• Liner: ductile manganese iron or hard chromium iron for wear resistant properties
• Seal: NBR 70

Dredge Ball Joint cross section

Dredge ball joint production

• Production of dredge ball joints is done at high quality and experienced foundry with the latest production facilities to ensurehigh quality casting and quick delivery time.
• Patterns are made from aluminum to ensure that all parts are identical and interchangeable.
• All castings of dredge ball joint are heat treated according ISO and ASTM
• All castings are measured and tested before machining
• All products are measured and tested after machining and before releasing for transport
• Cast areas are painted and machined surfaces are greased after machining
• All measurements and tests are recorded at Dredge Yard database

Dredge ball joint quality control

The following testing is done during and after production:

• Chemical composition test at third party
• Mechanical properties test at third party
• Measurement test of all dimensions after casting
• Ultra sonic testing for 20% of all surfaces
• Magnetic particle tests for critical parts
• Dye penetrant inspection for critical parts
• Measurement test of all dimensions after machining
• Surface roughness test for critical surfaces
• Hardness test for all parts
• Assembly test and interchangeability for all parts
• Locking fix and release test for all dredge ball joints
• Visual inspection for all parts during and after assembly

Customers are welcome to witness any test in our production facilities.

Dredge ball joint additional options

• Dredge ball joints can be provided with welded pipe and Flange execution
• Gland liner
• Ball liner
• Extra or special lifting lugs
• Different type of locking