Archive for the ‘Mining’ Category

Submersible borehole pumps for very high heads

Tuesday, November 20th, 2018 von admin

These new submersible borehole pumps developed by KSB have a diameter of up to 50 inches, i.e. 1250 mm, and a drive rating of up to 5 MW. These pumps will be capable of handling

  • flow rates of up to 5000 m³/h
  • at heads of up to 1500 m.

Compared with dry-installed pump sets, the advantage of submersible borehole pumps is -acc. to an information of the manufacturer- “the notably longer service life and the fact that pumps with wet motors are not compromised by flooding.” KSB is one of the few manufacturers worldwide to offer double-entry designs for particularly high load conditions alongside “normal” single-entry designs.

This double-entry design was originally used for drainage applications in mines. The heads required in these applications would have created very high axial thrusts in single-entry pump designs, placing extremely high loads on the bearings. The back-to-back impeller arrangement employed in double-entry designs not only reduces the axial thrust but also the associated bearing loads.

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KSB extended portfolio with vertical turbine pumps

Tuesday, October 23rd, 2018 von admin

The KSB Group extended its portfolio by adding a comprehensive programme of vertical turbine pumps. The so-called B Pumps are multistage vertical turbine pumps with a submerged hydraulic system. The pump sets comprise a discharge casing assembly, a column pipe and a pump bowl assembly. In total, customers can choose from 17 sizes with three different impeller types.

  • The pump sets cover heads of up to 200 metres.
  • Flow rates of up to 720 l/sec.
  • Available with one to 25 stages,
  • with stage casing diameters ranging from six to 24 inches.

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New Line of Cast Stainless Steel Air Operated Diaphragm Pumps

Tuesday, September 4th, 2018 von admin

Crane ChemPharma & Energy developed a new generation of air operated double diaphragm (AODD) pumps. The line named Depa DH is manufactured in cast stainless steel (316L). This new range will include five sizes that are certified to Atex Zone 0 and five that are certified to Atex Zone 1.

The DH pumps are developed for operations within industrial and chemical applications. Acc. a company’s information “the Depa DH pump features an optimized pump design that can improve efficiency by up to 57% and increase flow rate by up to 10%.”

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Pumps help excavate world’s longest tunnel

Monday, September 3rd, 2018 von admin

Copyright © BBT SE

The Brenner Base Tunnel through the Alps, destined to become the longest underground railway connection in the world at a planned length of 64 kilometers, is being excavated using tunnel boring machines, or TBMs made by Herrenknecht. The TBMs contain nearly every type of pump manufactured by Allweiler, a Circor brand;

  • Filter oil and cooling system pumps
  • Grout pumps for ring-gap mortar injection
  • Proportioning pumps with quench`
  • Water pumps

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Pumps used in mining for transporting packing material

Monday, July 23rd, 2018 von admin

Salinen Austria AG is one of Europe’s leading salt suppliers. The company’s most important products include brine for the chemical industry, food, industrial and melting salt, and chemically pure salt for pharmaceuticals. Three sites (Bad Ischl, Hallstatt, Altaussee) produce more than 3 million cubic meter of brine. Because of this, Austria is one of the most important salt producers in Europe. Salinen Austria AG contracted with Altmayer Anlagentechnik to construct a system that would be used to transfer tailing piles from the brine purification process used in the production of evaporated salt into the caverns. The tailing piles from the brine purification process are to be used to pack the salt cavities that have been created.

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Slurry test rig for pump optimizing

Tuesday, June 26th, 2018 von admin

Pumping of extremely abrasive media, e.g. mixtures of iron ore and water, poses major challenges to mine operators all over the world. In order to improve lifetime and increase MTBF (Mean Time Between Failure) values, reliable and well-proven technological concepts are required, especially in terms of wearing part resistance. The Mulitsafe double hose-diaphragm pump offers a proven technology for these highly abrasive applications. The only real wearing parts of this pump are the suction and discharge valves. To guarantee continuous improvement of the already high valve lifetime, a special test rig has been installed at the Feluwa works in Mürlenbach/Germany. Daniel Nägel and Philipp Werhan are describing, how this test rig (Fig. 1 – with pump type TGK 250 3 DS 35, performance data: Q = 14 m³/h, p = 130 bar(g) ) allows testing of customer-specific media under real conditions.

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Tailor-made Slurry Pumping Solutions

Thursday, November 23rd, 2017 von admin

After the took over of almost complete solid matter pump programme for abrasive and abrasive/corrosive media from the insolvent company Arthur Habermann the Aurum Pumpen GmbH has set itself the objective of improving both the design and the materials engineering of its pump series. In initial orders for a major customer, newly designed pump solutions have already been developed, implemented and built.

Because the Aurum-Habermann heavy duty pumps are true solids handling pumps in terms of impeller geometry and design, these cannot conform to the lightweight construction of a standardised pump, and are thus individually adapted to requirements. In terms of materials, Aurum supplies the Habermann heat-treated steel qualities that have proven themselves over decades.

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Simplified servicing in beneficiation plant

Thursday, November 16th, 2017 von admin

Until January 2017, a copper beneficiation plant in Zambia was using pumps from six different manufacturers, including units from Netzsch. Attributable to the large number of different models, this resulted in a steadily growing inventory of similar spare parts and maintenance procedures. Thereby, the effort and costs for necessary maintenance of the pumps were constantly increasing as a result. Following a thorough review of the reliability and service life of its pumps, the plant operator decided to simplify its spare parts inventory and maintenance – and only use pumps from Netzsch as a single supplier.

The Zambian company replaced 36 pumps for polymer applications and saved 1 million dollars by reducing its spare parts inventory as well.

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Improvements and cost reduction of chamber filter press feed

Wednesday, November 15th, 2017 von admin

Coal continues to be an important raw material. Speci­fically in Poland, the majority of energy is generated by converting coal into electricity. Mining operations have to use the most modern technology in order for this process to run as efficiently as possible. The Pniówek Processing Plant operates 9 chamber filter presses with 570 m3 of filtration area each.

Before modernization, 2 centrifugal pumps were used for press feeding which were consuming 560,000 kWh/year of energy. Added to this were repair costs of approxi­mately 27,000 Euros annually. In 2012, the investor decided to change the existing sys­tem and reassess the requirements and objectives of the filter press feeding modernization project, most important of which was to reduce energy consumption and extend intervals between repairs.

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Feluwa: Frost & Sullivan Commends Double Hose-Diaphragm Pump

Wednesday, September 13th, 2017 von admin

Based on its recent analysis of diaphragm pumps in the mining industry, Frost & Sullivan recognizes Feluwa Pumpen GmbH with the 2017 Global Frost & Sullivan Award for Product Line Strategy Leadership.

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