Excellence Slurry Pump Parts

Slurry Pump Parts

Excellence Slurry Pumps are produced strictly supervised by our quality control personnel, including foundry, machining, assembling and testing. Every single part is marked and recorded from foundry to finished products. Impeccable QC department and strict procurement are fundamental to our high quality products.

Slurry Pump Parts

1. Scientific design based on hydraulic theories;

2. Strict manufacture procedures and specialized QC personnel;

3. Various materials for different applications;

4. Long service life

  

Wet Parts

Wet parts, namely the pump parts have direct connection with slurry, are very crucial to the service life of slurry pumps. The wet parts, include impeller, liner, throatbush, frame plate liner insert, casing, etc., are very easily worn-out components because they work under longtime impact of abrassive and corrosive slurries in the high speed. For the long service life of pump parts, the material plays an important role here.

 Excellence pump offers the two solutions for this problem. We choose the white iron, high chrome for the strong abrasive slurries with the sharp particles.

 

         Slurry pump impeller                             slurry pump spare parts

 

      Slurry Pump Volute Liner                  Rubber Slurry pump Impeller

As for the corrsive slurries with blunt particles, we recommend the natural rubber. We have standard impeller materials which are suitable for most applications.

If the slurry is really special in property, customized impeller materials are available.

Standard Materials

Metal：

1. KmTBCr27 is named in China, which has 27% Chrome. Alloy KmTBCr27 is a wear resistant white iron that offers excellent performance under erosive conditions.

2. KmTBCr28 has the main elements of Chrome 28%, low Carbon with hardness of 430 in Brinell. KmTBCr28 is a corrosion resistant white iron suitable for low pH corrosion duties, where erosive wear is also a problem.

3. KmTBCr35 has the main elements of Chrome35-45%, low Carbon with hardness of 450 in Brinell. KmTBCr35 is a premium erosion/corrosion alloy to be used where excellent erosion and corrosion resistance is required.

Rubber：

1. ER01 is used for impellers where superior erosive resistance is required in fine particle slurries. The hardness of ER01 makes it more resistant to both chunking wear and dilation (ie, expansion caused by centrifugal forces) as compared to ER02. ER01 is generally only used for impellers. 

2. The antioxidants and antidegradents used in ER02 have been optimized to improve storage life and reduce degradation during use. The high erosion resistance of ER02 is provided by the combination of its high resilience, high tensile strength and low short hardness.

Customized Materials

Excellence is always making continuous optimization of materials like EPDM, Hapalon, Hastelloy, CD4MCu and other anti-abrasive materials for various applications.

Mercury from Gold Rush mining still washing downstream in floods

The destructive environmental legacy of Gold Rush mining in the Sierra Nevada could last for thousands of years in the form of ongoing erosion of mercury-laced sediments, according to new research.

Mercury, a toxic heavy metal, was used in copious amounts in California's hydraulic gold mining operations in the mid- and late 1800s.

Miners blasted gold-bearing sediment out of vast, ancient gravel beds with water cannons. They then added liquid mercury to the slurry, allowing the gold-mercury amalgam to sink to the bottom of troughs.

But finer gold-mercury particles washed out of the mixture with the bulk of the sand and gravel. It has been estimated that between 3 million and 8 million pounds of mercury entered the environment from the hundreds of hydraulic gold mines that were operated in the Sierra before a court order banned the downstream deposition of mining debris in the region.

Researchers have long known that mercury-tainted sediment has made its way downstream all the way to San Francisco Bay, contaminating fish and wildlife and entering the food chain.

In a paper published online Monday in the Proceedings of the National Academy of Sciences, researchers tried to get a more precise idea of the deposition process.

They examined historical streamflow and topographical data in the Yuba River corridor and ran models to gauge sediment distribution  downstream of old gold fields. 

They concluded that large stores of undiluted mining debris remain in the river's floodplain -- a reservoir of contaminants that major floods can unleash and carry downstream for the next 10,000 years.

Given predictions that climate change will increase extreme weather events, powerful floods capable of eroding the mercury deposits could become more frequent.

Potent floods can "effectively deliver toxic sediment slugs downstream into sensitive lowlands, thus augmenting a major potential source of food web contamination" in the tidal wetlands of the San Francisco Bay estuary, wrote the authors, led by Michael Bliss Singer of the Earth Research Institute at UC Santa Barbara.

Related Article: AAPA Commends Leaders for Passage of Bipartisan WRRDA Bill

The American Association of Port Authorities (AAPA) lauded leaders of the House Transportation and Infrastructure Committee, leaders of its Water Resources and Environment Subcommittee and Speaker of the House John Boehner (R-OH) for their efforts in advancing H.R. 3080, the Water Resources Reform and Development Act (WRRDA). The House passed the legislation today by a vote of 417 to 3.

“AAPA commends T & I Committee Chairman (Bill) Shuster (R-PA), Ranking Member (Nick) Rahall (D-WV), Water Resources and Environment Subcommittee Chairman (Bob) Gibbs (R-OH) and Ranking Member (Tim) Bishop (D-NY), as well as Speaker Boehner, for their leadership in moving this crucial, bi-partisan legislation through the House so it can be conferenced with the Senate’s version and signed into law by the president,” stated AAPA President and CEO Kurt Nagle. “Our nation desperately needs new water resources legislation this year to fortify our infrastructure, create good-paying U.S. jobs, grow our economy and enhance America’s international competitiveness.”

Mr. Nagle noted that it’s been more than six years since Congress passed the last water resources bill…legislation that was intended to be reauthorized every two years.

“More than a quarter of America’s annual GDP is based on the value of goods that transit in and out of our ports. In order to keep our economic recovery progressing, we must ensure these goods can move efficiently, without avoidable and costly delays caused by inadequate or poorly maintained infrastructure,” he added.

Both the WRRDA bill passed today by the House, and the Senate version (S.601) which passed in May, have provisions that address a number of the needs of America’s seaports. In particular, the House version would:

- Set targets for increased use of federal Harbor Maintenance Tax (HMT) collections to better maintain the nation’s deep-draft shipping channels, while providing more equity for ports whose shippers pay more in HMT taxes than are required for maintaining those ports’ channels. WRRDA provides an important step in addressing this complex challenge.

- Give the private sector, as well as state and local agencies, more flexibility to advance funding for channel improvement projects by eliminating key roadblocks that non-federal entities must overcome when they want to contribute to project costs.

- Authorize and advance those federal channel improvement projects that have a completed Corps of Engineers’ Chief’s Report and that would otherwise be delayed without WRRDA, while complying with the House earmark moratorium.

- Revise Army Corps of Engineers procedures to accelerate waterside infrastructure projects and studies.

“By bringing WRRDA to the floor for a vote, Speaker Boehner, Chairmen Shuster and Gibbs, and Ranking Members Rahall and Bishop, have demonstrated they recognize the significant benefits more modern, efficient seaport and waterway infrastructure will have on our nation’s economic vitality, job growth and international competitiveness, as well as the value in helping address federal fiscal realities through sizable tax revenues provided by the cargo and trade activity moving through these systems,” Mr. Nagle said.“Increased investments are needed to better maintain and improve the transportation infrastructure on our three coasts and the Great Lakes, linking America to the global marketplace.”

He added, “America’s public ports – which create jobs for more than 13 million U.S. residents and handle 99 percent of our nation’s overseas trade – together with their private-sector partners are investing over $9 billion annually in marine terminal infrastructure. We look forward to a final water resources bill that results in the federal government upholding its end of this partnership by authorizing badly needed improvements to waterside connections with seaports.”

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Gold Mining: Is Turkey a Model Country?

As Reuters¹ reported in January, gold production from Turkey is expected to rise to 36 tons in 2013 from 29.5 tons in 2012. The Turkish Gold Miners’ Association expects to produce 50 tons in 2015. This would put Turkey among the 15 top gold producers in the world. This is impressive -- gold mining was negligible in this country as recently as 2000.

Why is this important?

Two of the mines, including the largest Turkish mine in operation, called Kisladag, are owned by Canadian-based Eldorado Gold Corp. A third is owned by Australian company Alacer Gold. These foreign miners have successfully built mining operations in a country that is relatively new to modern-day mining.

Our in-house geologist, Andy Jackson, believes Turkey could hold many other economic gold deposits, and the country could continue to be a very positive contributor to the mining industry going forward.

The geology of the country makes it very appealing, because Turkey is located at an area of stress between tectonic plates – specifically, the African plate is being over-ridden by the Eurasian plate. Especially in the Biga Peninsula, in Western Turkey, prolific volcanism gave rise to a host of epithermal gold deposits, a number of which are in production.

Andy spent time in Turkey in the early 1990s, working as a regional exploration manager prior to joining Sprott Global Resource Investments Ltd.. He recently returned from Turkey – and told me about how it had gone from staunchly anti-mining to relatively mining-friendly as a country.

“The attitude to foreign miners has changed drastically. When we were exploring in Turkey twenty years ago, we frequently faced blockades being put in front of us. They didn’t consider it gold that we were looking for; they considered it ‘Turkish gold.’ And nobody was going to take ‘Turkish gold’ out of Turkey. There was a very nationalistic attitude to gold.

 “Environmental groups also attacked potential mining projects. They spread concern among local villages about cyanide use to extract gold. They told villagers in places around the potential mine site that 100 percent of the people in these villages would die as a result of cyanide poisoning.

“But, of course, mines have now been in operation for fifteen years, and people know that this doesn’t hold water anymore.”

The government has also embraced mining. As Umit Akdur, head of the Gold Miners’ Association of Turkey noted, gold exports reduced the current account deficit of Turkey by $1.9 billion in 2012, around 3% of the current account deficit for that year². As a result the political environment is positive for gold mining.

“The whole attitude of the Turkish government is pro-mining now – which is very encouraging. The mining legislation is sound, very structured, and clear. It doesn’t change regularly -- there are probably no tax increases in the cards at the moment. Currently there is a company tax and a 2 percent royalty at the pit.” Royalties at the pit, as Andy explained, are better for mining companies over an NSR (Net Smelter Royalty). The NSR entitles the authorities to take a share of the gold after it has been processed. In Turkey, the government royalty comes before the added expense to the mining company of processing the ore, and thus the amount of profit taken from the miner depends on the profitability of the mine.

Are there problems nonetheless?                                                                                                 

International relations are difficult, says Andy.

“The government doesn’t get along particularly well with the Armenians, the Shi’ite Syrian government, or the Iranians.” Tense relations with its neighbors could make trade more difficult.

“Unemployment, I’d say, is their biggest problem right now. They need to reduce it.

“But apart from that, it’s a great exploration venue. There is new mineralization being discovered in areas that had previously been looked at fairly well, because of improved ability of exploration geologists to find gold that is under cover.”

An area of particular interest is the Biga peninsula, which is an area near the Adriatic Sea coastline, in Western Turkey.

“I think Turkey is a very good place to go do exploration right now.”

You can take a look at the photos from Andy’s recent site visit to Turkey, here.

P.S.: View our new Natural Resource Investing Guide with 10 questions to ask before investing in any natural resource play here.

¹ Thomson Reuters: “Inside Metals” Community Newsletter. January 11, 2013

² Reuters online: Turkish economy minister sees 2013 c/a deficit below $60 bln. September 10, 2013

Andrew Jackson joined Sprott Global Resource Investments Ltd. in 2006, and has a background of 35 years in the exploration and mining industry. He holds an M.Sc. in economic geology, is a Fellow of the Society of Economic Geologists and is Series 7 licensed.

Andrew spent 12 years with Billiton / Gencor, becoming Exploration Manager for Southeast Asia, Turkey and North America from 1991-1996. He joined Placer Dome in 1996 and over a period of 10 years with Placer, held the positions of Exploration Manager for Canada, Exploration Manager for North and Central America, and Manager Global Near-Mine Exploration (covering 17 mines worldwide). He also headed a specialized target generation team that targeted very large gold deposits worldwide using advanced geological concepts.

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LME board makes decision on warehousing, gives no details

LONDON – The London Metal Exchange (LME) decided on Friday whether to overhaul its controversial warehousing network which is plagued by backlogs, but said it would only reveal details later.

The world's biggest and oldest metals marketplace has come under increasing regulatory and legal scrutiny over its metal storage practices, with complaints about long queues to withdraw physical metal from its warehouses.

"An in-principle decision has been made, and an announcement will be made in due course with the results and details of the consultation," a brief emailed statement said following an LME board meeting.

The statement did not say why the LME - acquired by Hong Kong Exchanges and Clearing last year for $2.2-billion - was delaying the announcement and spokesperson Miriam Heywood said no further comment was available.

In July, the LME proposed new rules to overhaul the delivery system from next April that would force warehouses to release more stocks once the wait-time breaches 100 days.

Clients of the warehouses say the system inflates prices for aluminium, mainly used in packaging and transport, even though the market is in global oversupply.

This has resulted in US-based lawsuits by consumers, distributors and others alleging aluminium price-fixing and anti-competitive behaviour by investment banks, large trading houses and the LME.

Earlier this month the LME's new CEO Garry Jones said he was ready to fight the lawsuits, and that critics should not expect a silver bullet to fix their concerns with it.

The LME has been caught in the middle of criticism of the proposed new rules from both major producers and end-users of the metal.

Consumers, including brewer MillerCoors and aluminium products maker Novelis, want drastic changes to warehousing rules to bring down what they pay to get metal, known as a premium.

Earlier this week, Alcoa Inc, the world's second-largest aluminium producer, complained to British and US market regulators about the warehousing proposals.

Russia's United Company Rusal, the world's largest aluminium producer, has also publicly lobbied for the LME to leave its warehousing rules unchanged or risk damaging the whole market.

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heavy duty slurry pump

EHM heavy duty slurry pump

Capacity:to 3060 m³/h

Head:to 68 m

Liner Materails:Metal

Pump Type:Horizontal

Designed for handling strong abrasive and high concentration slurries, EHM series centrifugal slurry pump are cantilevered heavy duty slurry pumps with metal liner. With thick wear parts and heavy duty support, EHM series could run in series in the allowable rang of pump working pressure. This series have become the first choice of various working conditions and clients from home and abroad think highly of EHM series’ excellent performance.
1. Cylindrical structure of bearing assembly: convenient to adjust the space between impeller and front liner and can be removed completely; 2. Interchangeable anti-abrasive wet parts made of high-chrome alloys; 3. The discharge branch can be oriented to any eight positions at the interval of 45 degrees; 4. Various drive types: DC(direct connection), V-belt drive, gear box reducer, hydraulic couplings, VFD, SCR control, etc; 5. The shaft seal uses the packing seal, expeller seal and mechanical seal;
Application and Reference
Series EHM wear resistant slurry pump are widely used in the mining, coal washing, power plant, metallurgy, petrochemical, building material, dredging, and other industrial departments, etc.