Enbridge shuts oil sands pipelines after synthetic crude spill

(Reuters) - Enbridge Inc, Canada's largest pipeline company, said on Saturday that 750 barrels of synthetic oil had spilled from a pipeline serving CNOOC Ltd's Long Lake oil sands project.

Enbridge said it was still investigating the cause of the spill early on Saturday near its Cheecham terminal, about 70 km (43 miles) southeast of Fort McMurray, Alberta.

The company said that it had also shut down two major oil pipelines serving Canada's oil sands region as a precaution. Shipment on the 345,000 barrels per day Athabasca pipeline and the 350,000 bpd Waupisoo line have been suspended while the company investigates the cause of the Line 37 spill. It gave no estimate for when the lines would re-open.

Enbridge said recent heavy rains in the region may have resulted in ground movements that affected the pipeline. It is working with regulators to assess the cause.

Microbiologically Induced Corrosion

Living organisms can promote corrosion in many different environments.A variety of biological organisms thrive in both aerobic and anaerobic environments. Corrosion attributable to microbiological activity occurs most frequently
in stagnant water, which remains in a centrifugal pump when it is shut down for an extended length of time.


Living organisms can promote corrosion in many different environments.A variety of biological organisms thrive in both aerobic and anaerobic environments. Corrosion attributable to microbiological activity occurs most frequently
in stagnant water, which remains in a slurry pump when it is shut down for an extended
length of time.


Several more serious types of microbiologically induced corrosion afflict stainless steels.A certain class of metal ion concentrating/oxidizing microbes appears to concentrate ferric and manganic chlorides, both of which are potent pitting agents. These bacteria form colonies preferentially at welds in austenitic stainless steels and are capable of causing severe pitting corrosion in a relatively short time. This problem has been encountered in a variety of equipment in both salt and fresh water. It is often discovered only when the
welds begin leaking. slurry Pumps employing welded stainless steel fabrications can be afflicted by this problem if permitted to sit idle with stagnant water, either fresh or salt, for an extended period. Biocides can be used to mitigate this problem in some instances.


Finally, the decay of biological organisms can generate hydrogen sulfide, which
adversely affects the protective oxide film on copper base alloys. The enhanced biological activity in warmer tropical waters, especially under stagnant conditions, can impair the corrosion resistance of bronzes and reduce the threshold velocity at which accelerated corrosion will occur. Bronzes should be used with caution in applications where macrobiological activity is anticipated and the possibility of extended shutdowns is possible.

Mining centrifugal slurry pump for Copper concentration

In order to meet the requirements on the rapid development of mining, power plant, metallurgy and coal industries, Excellence Pump Industry Co., Ltd. has designed and developed Series EZG(S) slurry pumps with large capacity, high head, high efficiency and running in series with experience of slurry pump design and manufacture for many years, and absorbing the research results of advanced technology and comprehensive feedback from users at home and abroad.

            

Model Explanation




Application

Series EZG(S) is widely used for handling the mixture of abrasive and corrosive slurries for high head in power plant, metallurgy, coal mining, building materials and chemical industrial departments. 

A Pump’s Role in Safe Chemical Transfer

A Pump’s Role in Safe Chemical Transfer: “One important point is the compatibility of the material with the chemical,” “The second factor is, if we use solvents, for example, we must use the appropriate chemical process slurry pump that won’t cause an ignition. This means using Chemical slurry pumps with electric conductive material. The third factor is suction capability.”

 

In Europe, the most important legislation introduced in recent years has been Registration, Evaluation, Authorization and Restriction of Chemicals—better known as REACH. Implemented in June 2007 by the European Union, REACH replaced 40 existing directives. There are 73 substances on the Substance of Very High Concern (SVHC) candidate list. The regulation puts greater responsibility on the industry to manage the risks of chemicals and provide safety information on the substances. However, REACH remains a work in progress.

 

One other way that the chemical industry is creating a safer environment is through certifications. Equipment must meet certain standards to gain certification and must be considered safe to handle known dangerous chemicals—such as acids, solvents and caustics. In the past, the CE symbol was the recognized symbol for safety. The CE marking or formerly EC mark, is a mandatory conformity marking for products sold in the European Economic Area since 1993. The CE marking is the manufacturer's declaration that the product meets the requirements of the applicable EC directives. Therefore, Excellence centrifugal slurry Pumps can develop freely in EU market by obtaining the CE certification. On the other side, we can export our products to Europe even worldwide and ensure the normal promotion to any country in EU.
 

Chemical Project In Middle East

Ralated Article: Gravel pump for Mineral processing

Series ES(G) gravel pumps are horizontal and single-casing centrifugal pumps. The type ESG pumps are with high-head. The pumps work with various speeds and ensure a long life, which meet the different requirements on hard transporting conditions.

ES series  Gravel pump structure
Construction of this series of pumps is of single casing connected by means of clamp bands and they have wide passage. The wet parts are made of Ni-hard and high-Chrome wear-resistant alloys. The discharge direction of pump can be oriented in any direction of 360°. They have advantages of easy installation, good performance of NPSH and
wear-resistance.

Material advantage 
The main wear parts in slurry pump are wet parts. Excellence adopts many kinds of anti-abrasive materials to extend the lifetime of wet parts.

The wet parts material in standard ES series pump is high chrome alloy KmTBCr26, which is a wear resistant white iron that offers excellent performance under erosive conditions. But in order to meet different requirements, Excellence can also produce wet parts in other materials to replace high chrome alloy such as Hastelloy, CD4MCu, and other anti-abrasive materials.

Application
Gravel pumps are designed for continuously handling the higher abrasive slurry, which contain too big particles to be pumped by common pumps. Gravel pump are suitable for delivering slurry in mining, explosive-sludge in metallurgy, sand mining, dredging, and other fields.

Excellence provides professional slurry transporting all over the world

Excellence Pump Industry Co., Ltd is a professional slurry pump manufacturer in China. Excellence provides professional slurry transporting all over the world. 

 

Excellence high performance and superior minerals processing pump is designed and manufactured to meet the highest specifications – for robust and reliable use in the world’s most demanding environments.

 

Excellence supply the majority of mining slurry pumps for every application across the plant, requiring a wide range of types and sizes of units to handle the full spectrum of flow rates, pressure requirements and slurry consistencies.

 

“Whether new projects, plant upgrades, refurbishments or improvements, our sophisticated systems are supported by highly trained, well qualified Service Engineers and Technicians who meet our customers’ service requirements.” In addition to product support through audits, inspections, technical advice, maintenance, repair, spare parts and components, etc. the fully-fledged service department supplies all parts and components for reliability, quality- consistency. Quality delivery of spare parts is ensured by direct involvement of Excellence Quality Inspectors through approved quality control plans and inspections. 

 

With the booming needs of all kinds of the metals, lots of slurry pumps are used for delivering the fine ore and tailings for the mineral separation. In the ore dressing plant, slurry pumps are very important as fluid delivering equipment. After crushing and screening, the ore particles mixed with the chemical compositions would be delivered to another tank or action equipment.

Iron Project In  Briza

Cooper Concentraion Plant In Mexica

Slurry pump is one of the necessary equipment in mineral processing to transport/delivery、pressure and exhaust. Such as it’s used for some feeding equipment like ball mill, magnetic separator or flotation when transporting the slurry. Increase the kinetic energy of fluid to transport the slurry under the pressure of centrifugal slurry pump. Generally the slurry are concentrated ore and tailings..

Copper Flation Plant In Africa

This article come from: http://www.centrifugalslurrypump.com/Mining-News/Excellence-provides-professional-slurry-transporting-all-over-the-world.html

Automatik Announces a New Heat-Resistant Elastomer Feed Roller

This new roller, designated EL 24, features a high thermal load capacity of up to 170°C, well above that of conventional rollers in use. The EL 24 also offers better frictional resistance and compression behavior than conventional elastomer feed rollers. Worthy of notice is the fact that the new roller is white. In addition, and importantly for the semiconductor industry, it is also silicon-free.

Feed rollers are exposed to a wide range of loading based on the different materials processed in compounding and masterbatches. The products they process are soft, brittle, abrasive and/or very hot. The feed roller therefore has to be closely adapted to the material being processed. Demands on elastomer rollers are very high particularly in relation to abrasive materials incorporating reinforcers such as fiber-glass or high-temperature additives. Optimum service life is important, so as to maximize system availability and minimize production cost. The new EL 24 feed roller is designed specially to handle such high loads.

In addition to external influences, feed rollers are also subject to continuous deformation due to the rolling motion as well as to compression by the inflowing strands. The factors of hardness, abrasion, elasticity or compression are key in determining whether a coating bounces, damps, shrinks or sets quickly. Ever more specialized materials are leading to a steady rise in demand for feed rollers adapted to the materials being processed. Long-time tests by a variety of Automatik customers imposing very high demands and subject to very high loading on feed rollers have demonstrated that using the EL 24 results in four to five times longer life.

Automatik Plastics Machinery also offers its customers a backup package for the rollers enabling them to be exchanged for recoating within a few days. With the launch of this new roller Automatik Plastics Machinery has extended its product portfolio as well as its customer service package.

Automatik Plastics Machinery has a variety of feed rollers in its product range, from structured steel rollers to rubber rollers. Feed rollers are currently offered for all machine models commonly used on the market.

The Importance of Quality Repairs

Industrial equipment is an expensive preliminary expenditure that is followed by an inherent operational and maintenance support cost. Pumps can fail for many reasons, and when repairs are needed, end users should consider all aspects to determine cost versus value. When an organization makes a large expenditure—whether it is an asset purchase or a major overhaul or repair—considering the payback period or investment recovery time is important.

The intention of any long-term solution is to return the equipment to factory specifications so that it performs as designed. However, keeping life-cycle cost savings of the equipment in mind, additional engineered solutions can be applied to further extend equipment life, minimize maintenance costs and maximize energy efficiency.

Repairing or Modifying a Pump Within a System 
When making repairs, end users must understand that pumps are often purchased as individual components. However, they are only able to perform as well as they are able to work within a system. Pump design, installation and system operation are determined by the materials used and the energy consumed.

In many cases, an existing system’s pumps and controls have not been optimized to accommodate the system’s duty changes over time. Engineered solutions can be used in these situations to modify the elements so that they meet the production demands and are compatible with each other. This allows the operators to get the most out of equipment life, minimize maintenance costs and decrease the amount of energy consumed.

The pumps before (left) and after (right) the repairs

Decision-Making
To repair a failed system, three steps should be taken:

• Determine how the system is operating.
• Find the cause of the failure.
• Decide what action to take to correct the problem.

When decision makers are faced with alternative solutions, their selection is influenced by time, cost, cash flow, operations and budgets. Equipment seems to break down during challenging circumstances when cash inflow is low, production output is high and the budget is non-existent. Unexpected breakdowns could prove even more catastrophic because they cause an immediate need to react and often have more damage repair costs, leakage, clean-up and safety hazards.

When decisions are based on unexpected circumstances (such as a breakdown), the repair may be a quick fix instead of one that solves the root cause of the problem. A comprehensive repair that solves the cause of the problem may not appear to be the best option. This is because solving the main problem, with a higher cost and longer time out of service, does not seem as advantageous as quickly patching the problem to resume operations. Though it is often overlooked, solving and repairing the root cause of the problem makes the repair more reliable. It also helps remove any uncertainty of another failure—strengthening the operating budget.
   
What Are the Risks? 
Every decision has a degree of risk. Decision makers cannot account for every possible problem or issue. However, they should develop a risk analysis when weighing their options. Then the project that presents the least liability would make the most sense. Plant managers must understand their repair options and consider the possible unfavorable outcomes when making repairs.

For example, suppose a single pump needs a seal replacement every six months. Instead of continuing to pay for replacement parts and installation fees, determining the cause of the seal leak would be more profitable over time. Plant operators have many different responsibilities. Therefore, some redundant repairs may go unnoticed. This increases the possibility of inventory, efficiency, maintenance, personnel and production time being lost because the same “bad actor” equipment is repaired repeatedly.

Case Study 
Wastewater is a pump-reliant industry. A municipal wastewater treatment plant contained 26 pumps that had been running problem free for 10 years after they had been repaired and retrofitted. Even though the pumps were performing beyond expectations, their station was slated for a renovation. This renovation included replacing all the pumps.

Unfortunately, after only three years, the replacement equipment began to fail. The seals began to leak, and the pumps emitted loud noises. Because of loose tolerances, the motor constantly seized.

From prior experience and understanding of their systems’ demands, the plant requested more than a simple seal replacement. The operators included the same upgrades and retrofits that had kept the replaced pumps running for 10 years. After the upgrades, the pumps no longer needed constant repairs.

Cost Savings 
Timing and cost are critical to the decision-making process. They can drive the end result when an expensive piece of machinery fails. The pump repair and upgrade from the wastewater  treatment plant is an example of cost savings with targeted repair.

Before the new pumps were upgraded, the cost of annual repairs was $3,500. Frustrated, the treatment plant operators were not intimidated by the upfront cost of $16,000 for the upgrades and retrofits. With this upfront cost, the repeat failures would be resolved for the long term, which would be an immediate return on the investment.

The savings for a 10-year period (10 years is used because that is how long the repaired solutions lasted until replaced during the station renovation) were calculated using the information to the right:
Annual repair cost = $3,500
Time period = 10 years
One-time upgrade cost = $16,000

Cost of continued repairs = $3,500 x 10 years = $35,000
Single quality repair: $16,000
$35,000 – $16,000 = $19,000 (the cost savings)

The upgrade proves to be the better choice with a cost saving of about $19,000. Cost savings aside, confidence in pump performance is a value that is hard to measure. Assurance that pumps will function properly and consistently allows operators to focus on other responsibilities with less distraction caused by repeated repairs.

The Importance of Regular Maintenance 
When rotating equipment fails, 70 to 80 percent is a result of human error—whether from lack of training, operational error or improper routine maintenance. To optimize the life of the pump, all components within a pump system require regular and efficient service.