Transfer point upgrades raise throughput reduce dust in Canada

first_imgThe largest independent terminal operator in North America has announced completion of a load-out hopper and four belt conveyors capable of carrying as much as 1,500 t/h of concentrate, complete with five transfer points that comply with the company’s ‘zero spill’ principle. The entire system of chutes and transfers at Kinder Morgan’s North Vancouver, BC facility was designed by Martin Engineering, custom-engineered and modelled in 3-D. The Martin transfer chutes confine the material stream and reduce air entrainment, while directing the moving material onto the receiving belt with minimal impact to reduce spillage, abrasion, dust and premature wear. This control also helps ensure that material is center-loaded on the belt, avoiding mistracking and fugitive dust.  The new transfer points provide the dual benefits of minimising aeration and preventing buildup within the chute, which is particularly important when dealing with combustible materials.Four of the new transfer points employ a ‘hood and spoon’ transfer, with the hood discharge chute at the top of the system and a spoon receiving chute to place material onto the belt being loaded. These engineered flow chutes employ special geometries that capture and concentrate the material stream as it travels through the chute. The fifth transfer point required a heavy-duty impact area at the bottom of a hopper to handle cargo from two front loaders.Environmental stewardship and safety are among Kinder Morgan’s core principles, and all the concentrate storage and handling facilities at the terminal are fully enclosed to ensure that no fugitive material escapes into the environment. From the outset, company officials knew that particular attention would be needed on the five conveyor transfers in order to prevent the escape of dust. “When we spent some time reviewing the existing transfer points, it became apparent that there was now better technology available, and we wanted equipment that could elevate the performance and containment to a new level,” said K-M Engineering & Project Development Manager Al Price-Stephens.   During initial meetings, the Martin Engineering team introduced a variety of new technologies to improve efficiency and dust containment. “They helped us reach a good understanding of what’s available, and we found additional details on the company’s web site,” Price-Stephens continued. “We also became very familiar with the Martin Engineering book, Foundations IV, which has become the bible of bulk materials handling.” To address the site’s specific requirements and design the optimum containment, Martin Engineering conducted a site survey, followed by a conveyor risk assessment. The strategy that emerged gave Martin Engineering responsibility for the design and fabrication of the five transfers, as well as supervising the installation by an outside contractor. “Load zones and discharge points are prime sources for the creation and release of airborne dust,” explained Martin Engineering Global Projects Manager Greg Bierie. “The amount of dust created in a transfer point depends on a number of factors, including the nature of the material and the height of the drop onto the belt, as well as the speed and angle of the loading and unloading belts,” he said. The project was kicked off with material testing at Martin Engineering’s Center for Innovation at the company’s headquarters in Neponset, Illinois. “By testing the customer’s specific bulk material and applying those properties as the initial step in chute design, we can develop a transfer that maximises capacity, while minimising the potential for build-up and fugitive material,” Bierie said.Weekly meetings were held from the beginning of the project through final design, which allowed all participants to see and discuss the status of each transfer point as it was being designed. “Every chute design is tailored to suit the specific material characteristics and conveyor systems of the individual customer, rather than using stock products and attempting to make them work,” observed Martin Engineering Projects Manager Tim Patrick O’Harran.“Martin engineering works with a 3D model, which not all designers do,” Price-Stephens said.  “It’s much easier to look at a 3D model and resolve some of the potential issues before fabrication.”The new conveyors range from about 32 m to 216 m in length, and are either 1,067 mm or 1,220 mm wide.  Average speeds range from 0.9 m/s on the shortest run to 2.87 m/s on the longest conveyor.  Liner materials were installed on all five transfer chutes to resist abrasion and extend service life. Asked to summarise the experience overall, Price-Stephens said, “We were pleased by the level of support that we received from Martin Engineering, without having to hound anyone. And we were impressed by the fact that when we did the initial start-up, it was the guys who helped design the equipment who were there to oversee the start-up.“To some extent, I think bulk terminals like ours have learned to live with a certain amount of spillage and dust, believing that it’s unavoidable,” he added. “We’ve proven here that isn’t the case. When you look at the components and see what’s been designed for this facility, you realize the concepts and technology are pretty straightforward. It’s really about simple things done well.”Kinder Morgan is the largest independent terminal operator in North America, with 180 locations. The Vancouver Wharves terminal in North Vancouver, BC delivers inbound and outbound services to shippers moving cargo between all regions of western Canada, handling mineral concentrates, liquids (diesel and jet fuel), sulphur and specialty agricultural products. The terminal handles more than 600,000 t/y of concentrate across five different storage buildings.last_img read more

Nikola Cvijetic leaving Swiss NT My dream is to play for Serbia

Nikola CvijeticSerbia handballSwiss handball ← Previous Story Denmark wins Golden League Next Story → Veszprem in trouble – Laszlo Nagy is out for a month Swiss national team player Nikola Cvijetić has decided to leave the squad of Rolf Brack and try to wear a new t-shirt in not such a closer future. A 25-years old right wing of the Swiss best team, HC Kadetten Schaffhausen, wants to play for Serbia, country of his parents. Perspective lefthander has announced that for– I decided to finish chapter of my career linked with Swiss national team. In my heart, I am Serb, and after talk with my family, I made decision to try to impose myself to the Serbian NT in the future. I am aware how tough will be to get a chance, but I am still young, only 24, there is a lot of team that my dreams come true even I will have to make a break until 2017. My biggest dream is to play with Serbia at some big event – World or European championship – said Cvijetic, who has 15 appearances for Switzerland. The last one was in June 2014 against Tunisia, which means that he will be able to play for Serbia since June 2017 according to IHF regulations. read more