Five soldiers and a civilian were injured Monday when a hydraulic hose blew on a dump truck hauling sandbags for flood fighting in Souris, Man.
The six, who were resting at the nearby Plum Creek site when they were sprayed with the oily fluid, were taken to hospital in Brandon for treatment, said Lori Truscott, spokeswoman for Canadian Forces Base Shilo. Their condition is unknown.
Despite the accident, Souris Mayor Darryl Jackson said Monday he's confident the barriers in the town of 2,000 are ready.
Chief floodfighter Steve Topping said the weather forecast is fairly good because there has been minimal rain in the Souris basin. He said they've been advising municipalities along the Souris they are expecting a crest about half a metre lower than had been predicted.
Residents in the town, about 50 kilometres southwest of Brandon, have spent weeks slinging sandbags since provincial flood officials urged them to build up their protection in light of the devastation in Minot, N.D.
Part of the American city, which is also situated along the Souris, was swallowed by the floodwaters last week. The water reached levels not seen in 130 years, washed over dikes and submerged more than 4,000 homes.
Farther upstream in Saskatchewan, where the Souris begins, much of the village of Roche Percee was also inundated.
Hundreds of soldiers arrived in Souris over the weekend to help build dikes. On Sunday, the town decided to sacrifice a historic 177-metre-long footbridge — Canada's longest — to prevent it from ripping apart a protective dike.
Jackson said the anchors holding the bridge cables ran beneath a dike, and if the Souris River rose up over the bridge, the cables could tear out the anchors, making the structural failure of the dike inevitable.
The river's crest is expected to arrive some time between Tuesday and Friday.
Jordan Greig, a 17-year-old sandbag volunteer, said he's looking forward to the end of the crisis when he won't be awakened by a morning siren. The town of about 1,600 people has been regularly issuing emergency calls for volunteers by four siren bursts.
Elsewhere, the town of Melita, located in the southwest corner of Manitoba — and the first community that was bracing for the Souris crest — seems to have made it through unscathed.
Mayor Bob Walker believes the peak may have passed through the town already. The crest was about 0.6 metres higher than their spring peak of 4.4 metres.
On Monday, that level in the town, which is on a higher elevation than Souris, had dropped a few centimetres.
Based on the information he is getting from North Dakota, Walker said he believes the water level will continue to drop very slowly. The information he has received from the U.S. officials has been fairly accurate, he said.
"It's only 27 miles away and there's not a whole bunch of calculation in between, whereas when the province tries to come up with numbers they're feeding in information right back to Rafferty and Alameda."
The Rafferty-Alameda reservoir and dam structure in Saskatchewan controls levels on the Souris River.
Walker said the level in Melita was lower than Manitoba officials had told him to expect.
But there is a dike in North Dakota that he believes is holding back another 0.3 metres of water that could still be on the way.
2011年7月4日星期一
2011年5月15日星期日
GSM Power Transmissions UK Ltd sorts re-cycling picking station
Several geared motor units have been installed into a recycling plant in southern England in order to reduce down-time and improve efficiency. The plant has been converted from a hydraulic drive system with a very large power pack and complicated hose and valve system into a clean and simple electrified version with energy savings.
The plant has been operating for many years using hydraulic motors and gearboxes to perform the various individual applications which make up the picking station. The main application is the large in-cline conveyor where 2 hydraulic motors have been replaced with a highly efficient bevel helical shaft mounted gearbox and 15kw electric motor. The operators took advantage of this change and requested an increase in the speed of the conveyor by about 6% in order to improve productivity. The operator realised that with the increase in speed –the waste material was positioned more towards the middle of the belt –reducing the chance to tangle on the idlers, side skirts and head drum.
The in-cline conveyor is fed material from the "Walking Floor" Fines conveyor which when hydraulic was variable speed by varying the flow to a fixed displacement motor and gearbox. The customer was anxious to retain the variable speed function and so a shaft mounted planetary gearbox with mechanical variator and electric motor was supplied. This means that by a simple handle on the variator –the operator is able to adjust the feed of material onto the main incline conveyor whilst the conveyor is operational.
Tomas Healey –General Manager Comments: "GSM Power Transmissions UK Ltd were awarded the contract because of their hands on approach, attention to detail and willingness to understand the requirements of the plant and how it operated. There were a number of challenges on this project including having to design gearboxes which would retro-fit with little or no additional engineering and yet provide us with new parameters of operation to improve the productivity and efficiency of the plant. The support experienced was excellent and commissioning was completed in phases which caused no down-time thanks to the new solutions mounting straight in to place of the original units, an essential requirement due to the continuous nature of this kind of industry."
Once the material has dropped from the incline conveyor onto the shaker plate –the material starts to be sorted. Lumps of rubble ,stones and buliding aggregate fall through onto a second Fines conveyor which was also converted from Hydraulic to electric drive. The use of shaft mounted planetary gearboxes and electric motors are ideally suited to this type of application because they are robust in design, highly efficient and compact so that they can be squeezed in to tight spaces with relative ease. The weight of the shaft mounted planetary gearbox together with the transmittable torque is also a big advantage especially when shaft mounting from an existing driven shaft.
The trommel which separates the aggregate by size was being driven by 2 hydraulic motors. These have been replaced by 2 electric motors and gearboxes. The Planetary gearbox option was chosen because on the Trommel they are suitable for high radial loads exerted onto the output's twin taper roller bearings which support the output shaft .The space available to fit the drives was also very limited and the plant runs 24/7 so reliability was also paramount in the decision of what type of drive to install. The planetary gearbox affords a highly efficient compact gear design which transmits torque from the sun-pinion to the planet gears all encased within a planet ring -this allows ratios on a single stage from 3:1 to 7:1 and as the planetary gearbox is a modular design –ratios up to 20,000:1 are not un-common.
Jon Snaith –Managing Director of GSM Power Transmissions UK Ltd comments " this was a particularly enjoyable and rewarding project to work on because there was so much variation in the requirements of the drives. The Industrial Planetary Gearbox range from GSM PT UK LTD has a large torque range available from 1,000Nm to 170,000Nm and incorporating innovative casing and output configurations like foot mounted, flange mounted , in-line or right-angle and the unique options for shaft mounted gearboxes like the shrink disc version and female keyed shaft version- where the cost of splining the driven shaft is illuminated from the decision making process.
High radial load capacity versions of each gearbox torque size are manufactured for applications like winches and slew drives - so that the OEM manufacturer gets a competitive and compact solution to work with.
Jon Snaith adds "We have 3 versions of right-angle planetary – the conventional planetary gears with spiral bevel, planetary gears with bevel helical and planetary gears with a worm/wheel input. All these options allow the best selection for the application to be carried out and give the OEM customer complete peace of mind".
GSM Power Transmissions UK LTD provides electric and hydraulic drive solutions for all kinds of applications like access platforms, off-shore spooler/winch systems, material handling, crushers and mixers etc.
The plant has been operating for many years using hydraulic motors and gearboxes to perform the various individual applications which make up the picking station. The main application is the large in-cline conveyor where 2 hydraulic motors have been replaced with a highly efficient bevel helical shaft mounted gearbox and 15kw electric motor. The operators took advantage of this change and requested an increase in the speed of the conveyor by about 6% in order to improve productivity. The operator realised that with the increase in speed –the waste material was positioned more towards the middle of the belt –reducing the chance to tangle on the idlers, side skirts and head drum.
The in-cline conveyor is fed material from the "Walking Floor" Fines conveyor which when hydraulic was variable speed by varying the flow to a fixed displacement motor and gearbox. The customer was anxious to retain the variable speed function and so a shaft mounted planetary gearbox with mechanical variator and electric motor was supplied. This means that by a simple handle on the variator –the operator is able to adjust the feed of material onto the main incline conveyor whilst the conveyor is operational.
Tomas Healey –General Manager Comments: "GSM Power Transmissions UK Ltd were awarded the contract because of their hands on approach, attention to detail and willingness to understand the requirements of the plant and how it operated. There were a number of challenges on this project including having to design gearboxes which would retro-fit with little or no additional engineering and yet provide us with new parameters of operation to improve the productivity and efficiency of the plant. The support experienced was excellent and commissioning was completed in phases which caused no down-time thanks to the new solutions mounting straight in to place of the original units, an essential requirement due to the continuous nature of this kind of industry."
Once the material has dropped from the incline conveyor onto the shaker plate –the material starts to be sorted. Lumps of rubble ,stones and buliding aggregate fall through onto a second Fines conveyor which was also converted from Hydraulic to electric drive. The use of shaft mounted planetary gearboxes and electric motors are ideally suited to this type of application because they are robust in design, highly efficient and compact so that they can be squeezed in to tight spaces with relative ease. The weight of the shaft mounted planetary gearbox together with the transmittable torque is also a big advantage especially when shaft mounting from an existing driven shaft.
The trommel which separates the aggregate by size was being driven by 2 hydraulic motors. These have been replaced by 2 electric motors and gearboxes. The Planetary gearbox option was chosen because on the Trommel they are suitable for high radial loads exerted onto the output's twin taper roller bearings which support the output shaft .The space available to fit the drives was also very limited and the plant runs 24/7 so reliability was also paramount in the decision of what type of drive to install. The planetary gearbox affords a highly efficient compact gear design which transmits torque from the sun-pinion to the planet gears all encased within a planet ring -this allows ratios on a single stage from 3:1 to 7:1 and as the planetary gearbox is a modular design –ratios up to 20,000:1 are not un-common.
Jon Snaith –Managing Director of GSM Power Transmissions UK Ltd comments " this was a particularly enjoyable and rewarding project to work on because there was so much variation in the requirements of the drives. The Industrial Planetary Gearbox range from GSM PT UK LTD has a large torque range available from 1,000Nm to 170,000Nm and incorporating innovative casing and output configurations like foot mounted, flange mounted , in-line or right-angle and the unique options for shaft mounted gearboxes like the shrink disc version and female keyed shaft version- where the cost of splining the driven shaft is illuminated from the decision making process.
High radial load capacity versions of each gearbox torque size are manufactured for applications like winches and slew drives - so that the OEM manufacturer gets a competitive and compact solution to work with.
Jon Snaith adds "We have 3 versions of right-angle planetary – the conventional planetary gears with spiral bevel, planetary gears with bevel helical and planetary gears with a worm/wheel input. All these options allow the best selection for the application to be carried out and give the OEM customer complete peace of mind".
GSM Power Transmissions UK LTD provides electric and hydraulic drive solutions for all kinds of applications like access platforms, off-shore spooler/winch systems, material handling, crushers and mixers etc.
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