The Wärtsilä (ship hangar) 31 engine (purchasing supply), which is certified by the Guinness World Records as the world's most efficient 4-stroke diesel engine (purchased by the product library), has won another award – at 4 At the European Ship Engineering Symposium held in Rotterdam, the Netherlands on the 13th, the Wärtsilä 31 engine won the “Marine Engine†award.
    It is reported that the product that won the award must be “an innovative and original engine technology that demonstrates engineering innovation and change.â€
    Stefan Wiik, vice president of engine business for Wärtsilä Shipbuilding Solutions, said, “The Wärtsilä 31 engine truly represents a breakthrough in the efficiency of marine engines. When launched in 2015, it set a new benchmark for 4-stroke engines, using the latest technology. Optimizing the ship's entire life cycle opens the door to providing customers with the industry's most advanced, powerful, fuel efficient, flexible and environmentally friendly engines."
    The Wärtsilä 31 engine is available in three versions: diesel, dual fuel and spark ignition gas. It can service a wide range of ship types with propulsion power from 4.2 to 9.8 MW.
    The first Wärtsilä 31 engine was built in September 2015 and will be used in a new generation of icebreakers (ship type shipyards) for the latest technology. The new ship is currently being built at the Russian PJSC Vyborg shipyard. The shipowner is Russian state-owned atomic energy. The company ROSATOM is affiliated with FSUE Atomflot.
Mining Threaded Steel Rock Bolt
Left-hand full-thread bolt
Left-handed full-thread bolts are mainly used in mines where rock formations such as coal mines are not hard enough. bolts are generally used together with anchoring agents to achieve end anchoring or full anchoring in mines.
ANTO left-handed full-thread bolt is made of high-strength HRB500 or HRB600, which can provide high load-bearing capacity to protect mine safety.
Compared with other bolts, it can be installed using ordinary foreign drilling rigs, which saves installation costs.
Anto left-handed full-threaded anchor rod, the threads are distributed throughout the rod body, increasing the moving length of the nut, if the anchor rod support is loose in the later stage, tighten the nut, and the anchor rod restores the support force.
The one-way left-handed rebar bolt without longitudinal reinforcement can be used in all kinds of mines and underground projects, and is especially suitable for the support of coal tunnels with wire mesh. It has achieved good technical and economic effects.
The structural features of the anchor rod: the full length of the body has a rolled continuous thread, and the full length is of equal strength; the fastening end is provided with a prestressed gasket and a ball nut. It is superior to the bolt processed by round steel, and is a new type of bolt with material saving, labor saving and equal strength.
Mining Threaded Steel Rock Bolt,Rebar Rock Bolt,Mining Rebar Bolt,Coal Mine Supporting Anchor
anto mining equipment co.,Ltd , https://www.antobolts.com