Tuesday, August 31, 2010

What is a vertical roller mill

Vertical roller mill ( grinding ) is the dawn of Heavy Industry and Technology to address the industrial mill output is low, energy consumption and higher technical problems, absorb advanced technologies combined with our years of design and manufacture of advanced mill concept and market demand, after years of concentrated design improved Large grinding equipment . Vertical roller mill using reasonable and reliable structural design, with advanced technological process, set drying, grinding, powder selection, improve the integration, especially in the large grinding process, can meet customer demand, the major technical, economic indicators reached the international advanced Level .


Vertical roller mill Features:

  • operating costs low:
    1. mill efficiency, vertical roller mill with roller compacted ground and feed bed materials, low energy consumption, milling system power consumption 40-50% lower than the milling system, and with the increased humidity of raw materials, section Electric effect is more significant.
    2. metal loss, liner and roller with a special material, long life, reduced operating costs, high utilization ;
    3. into the grinding material particle size of up to roller diameter of about 5%, usually 40 ~ 100 mm, it can be saved two medium-sized vertical mill grinding.
  • construction costs low:
    1. The grinding process is simple, and milling system can be reduced compared to an area of about 50%, reduced by about 70% of construction costs, building size, occupy less space .
    2. set of broken grinding, drying, grinding, grading conveyor in one, the system is simple, compact . Can open layout, making low-cost construction .
  • easy and reliable operation :
    1. with a control device, can realize remote control, easy to operate .
    2. The roller cover and the disc has to prevent direct contact liner quality control device, to avoid fragmentation of severe vibration .
  • drying ability, vertical mill using air transportation of materials, the grinding of materials for large water inlet temperature can be controlled so that products reach the final water, drying in the grinding of water up to within 12 to 15 % of the material, even drying Dry milling, drying only water for 3 to 4 % of the material .
  • stable quality, uniform particle size distribution . Material in the mill residence time is short, easy-to- size and chemical composition of the product testing and control, product quality and stability .
  • easy maintenance, through the maintenance tank, turn rotating arm, roller, liner can be replaced in a very short time .
  • environmental protection, energy saving ; vibration, low noise, low dust, clean operating environment to meet the requirements of environmental protection .

Vertical roller mill applications

  • Special glass fiber industry 's largest high yield pyrophyllite powder fineness of grinding ;
  • Private coal gangue powder industry powder produced a large output ;
  • Special chemical industry raw materials, high production of various chemical powder production;
  • Non-metallic mineral industry, a variety of low, medium and high hardness of the hundreds of species of large-scale ore powder production preparation;
  • Hundreds of species of other big industry production of a variety of materials, powder preparation;

Combine crusher!

Coleen Stone of Deckerville guides a 1959 Allis Chalmers combine (right) into an opponent in last week's Combine Demoltion Derby at the Ogemaw County Fair in West Branch. Competing for the first time ever in the event, she won the first heat and feature heat. Stone, who competes in regular Demolition Derbies, was the first woman to win theCombine 'feature' at Ogemaw.




IMM(1683) completed of the acquistion of Qingdao Tianxun

IMM(1683) announced that the Acquisition was completed on 27 August 2010 with the Company acquiring an aggregate of 100% equity interest in Qingdao Tianxun. Following the Completion, Qingdao Tianxun has become a direct wholly-owned subsidiary of the Company.
 
Qingdao Tianxun's principal business is the manufacturing of electrical control systems and related components for coal mining machinery such as shearers, roadheaders, shuttle cars, armoured-face conveyors and hydraulic roof supports.

Sunday, August 29, 2010

Slag pots

Slag pots are available with capacities of 30 - 1050 cubic feet. Finished weights range from 2.5 - 75 tons. Our facilities have the capability to cast pots in nearly every shape and style for a variety of mounting systems and methods of transport.


Our slag pots are utilized in many applications including BOFs, AODs, Electric Arc and Blast Furnaces, and nonferrous refineries for the melting of magnesium and copper nickel smelting.


Every slag pot we produce is designed and engineered to meet specific and critical custom specifications.  Our expert engineering and casting technicians are committed to working with you to suggest modifications that reduce cost and extend pot life through improved efficiencies.
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BCaiWa

Slag Pot

Charges and grabs a random enemy target, tossing them into the caster's slag pot. The target is unable to attack the caster and takes 6000 Fire damage every second for 10 sec. If the target survives, they are imbued with the magical slag, increasing their haste by 100% for 10 sec.
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BCaiWa

Monday, August 23, 2010

Spur Gears

Spur gears are the most common and also the oldest type of gear available. They are used in many different machines for a wide variety of functions. Although they are very simple in design, several different, discrete types of spur gears exist. Anyone who is interested in mechanical engineering or who is about to undertake a project that involves the use of gears of any type ought to familiarize themselves with spur gears and the ways in which they are used.

Spur gears are extremely important mechanical components and come in many varieties.

Spur Gears in General

In general, spur gears are round metal disks with teeth cut around the circumference. In order for the gear to qualify as a spur gear, the teeth must be cut so that they run perpendicular to the gear's face. Spur gears are the simplest design of gear produced. They are usually used for the transmission of rotary force. For instance, if two shafts are parallel to one another, and one is spinning, a spur gear can help to transfer that force onto the other shaft. Spur gears usually have an operating efficiency of 98% to 99%.


Spur Gear Blanks

Spur gear blanks are spur gears with no teeth cut into them. These types of spur gears can be useful if you do not yet know the precise number of teeth you will require for your spur gear's application.

Spur Gear Materials

Spur gears can be built from a wide variety of different materials. Different materials are often used for different types of applications. For instance, cast iron spur gears are strong and are used in many commercial applications. Aluminum alloy spur gears, conversely, are lighter but can also be built into more precise shapes, so they are used for low-impact applications requiring high precision, such as measuring instruments. Other materials from which spur gears are built include cast steels, carbon steels, stainless steels, brass, magnesium and titanium alloys, and sometimes even nylon.

Anti-Backlash Spur Gears

Antibacklash spur gears, as their name suggests, have little to no backlash, and so are used in high-precision applications. Often, these spur gears are built with springs for proper tensoring. They are usually built from brass, aluminum or stainless steel. In order for antibacklash spur gears to work together, they must have the same diametral pitch and pressure angle.

Cluster Spur Gears

Cluster spur gears come "clustered" together, usually on the same shaft, and have varying diameters.

Clamp Hub Spur Gears

Clamp hub spur gears are named for the manner in which they connect to their shaft, that is, with a clamp at the spur gear's center.

Pinion Shafts

Pinion shafts are basically stretched-out spur gears, cylinders with teeth running for their entire length.

Ratchets and Pawls

Ratchets and pawls are two spur gears that work together. Ratchets are gear wheels with teeth, while pawls are spring-loaded and pivot. Pawls are usually slanted. Together, these gears allow for unidirectional movement.

Hubless Spur Gears

Hubless spur gears have no hub and instead connect to their shafts through friction or with adhesive.

Pin Hub Spur Gears

Pin hub spur gears connect to their shaft through the use of a removable pin as opposed to a clamp.

Helical Gear, Spur Gear, Worm Wheel, Worm Shaft

We are engaged in manufacturing and supplying of the industrial gears and gearboxes, heavy duty gearbox, industrial tools, engineered gears, allied products and CNC turned components like transmission gears, automotive gears, metal transmission gears, heavy duty automotive gears, helical gearbox, spur gear, helical gear, crane duty gearbox, steel sprocket, timing pulley, spline shaft, worm wheel, worm shaft, actuator pinion, rack pinion, which are extensively used in the automobile, food processing, gearboxes, spares and machine building industries.

These components consist of following features:

* Durable
* Resistant to corrosion
* Low maintenance cost
* High tensile strength

For details, please contact us:
Phone:+(86)-(379)64227789 or 15038531918
Fax: +(86)-(379)64227789 (manual)
E-mail: info@mhmhd.com
Online: http://www.mhmhd.com/

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BCaiWa