Production requirements for the main body of the slime dryer drum

The main body of the slime dryer drum is the main operating part of the whole system. The selection of materials, the design of the process and the quality requirements must be scientific and reasonable. Today, the main body of the drum is the main moving part of the whole system. The design and quality requirements of the process must be scientific and reasonable. Today, Xiangtong Machinery and everyone talk about the basic requirements of the drum body during production.
1) The cylinder material should not be lower than the mechanical properties of Q235-B in GB/T 700; in the cold storage area (the lowest temperature is lower than -20 °C), the cold bending test should be added. The surface quality of the steel plate shall comply with the provisions of GB/T 3274. For steel plates with a thickness greater than or equal to 40 mm, ultrasonic inspection shall be carried out on the area where the edge width of the finished material is 60 mm before cutting, and there shall be no defects such as cracks and delamination.
2) When making the ring section of the cylinder section, the number of longitudinal welds along the entire circumference, the section of the diameter of 3m or more shall not exceed three, and the length of the shortest imposition arc shall be greater than one-fifth of the circumference. No more than two sections of 3m and 3m in diameter, and the shortest imposition arc length shall not be less than a quarter of a circumference. The shortest length of the segment shall not be less than 1 m, and no such section shall be more than one section in a span and shall be placed in the middle of the cross. The longitudinal welds of adjacent segments shall be staggered from each other and the staggered distance shall not be less than 800 mm.
Application scope of slime dryer: High-efficiency and energy-saving slime dryer is a new type of drying equipment developed on the basis of drum dryer. It can be widely used in: 1. Coal industry, coal slime, raw coal, flotation clean coal, Drying of mixed coal and other materials; 2. Drying of blast furnace slag, clay, limestone, sand, quartz stone, etc. in the construction industry; 3. Drying of various metal concentrates, waste slag, tailings and other materials in the mineral processing industry; 4. Chemical industry Drying of non-heat sensitive materials in the industry.
In recent years, under the fierce attack of financial crisis, many relatively small-scale slime dryer manufacturers are on the verge of closure, and some large and medium-sized dryer manufacturers have also suffered large losses. The dryer industry is facing severe conditions. Hone and self-regulation. How to effectively break away from this kind of adversity has also become a topic of careful consideration in the growth of dryer manufacturers. At the same time as the system reform of the dryer manufacturers, in addition to correcting the bias of the enterprise, we must also focus on the reform of the equipment and the innovation of the beneficiation process, so that the enterprise will advance and grow in the current situation.
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn

LG Sigma Elevator Spare Parts

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Sigma Elevator Company is a subsidiary of Otis Elevator Korea (OEK) in South Korea for all overseas/export markets. It was founded in 2000.

Starting in 1968, "Goldstar" elevators, and later on, "LG" elevators, were counted among the world's top elevator brands. With the beginning of this new millennium, that legacy lives on through the birth of "SIGMA" elevators.

SIGMA Elevator Company will continue on with its mission of supplying elevators and escalators to more than 50 nations worldwide through its global network of 11 sales companies, 2 offices, and 52 agents or distributors.

SIGMA Elevator Company is dedicated to providing its customers with the best quality products and services. SIGMA elevators feature unmatched safety, ride comfort, and modern design. SIGMA escalators and moving walkways are held to similar safety and comfort standards and are integral parts of our modern urban aesthetics.

Changwon factory, Korea, the main factory of SIGMA Elevator, has long been a well-established name in the global elevator industry. SIGMA`s Dalian factory in China produces elevators & escalators to meet the demands of the local and worldwide markets as well.

SIGMA Elevator Company is committed to increasing customer value through a sharp focus on product innovation and customer satisfaction. With technology developed over the past 30 years, an enduring innovative spirit, and enthusiastic attitude towards providing customer value, Sigma Elevator Company stands by its product and service lines with confidence.

Sigma currently has businesses in more than 75 countries worldwide, and subsidiaries in five countries; Hong Kong (China), Vietnam, Thailand, Malaysia and Singapore.

In the United States, Sigma elevators were distributed by CemcoLift, which was a historic elevator company bought by Otis and based in Hatfield, PA. However, in 2012 CemcoLift has gone bankrupt and replaced by a new company called Minnesota Elevator Solutions.

It's headquarter, factory and testing tower are located in Changwon, South Korea, which are also operated by Otis Elevator Korea. It also has a secondary factory in Dalian, China, opened in 1998 to meet demands on Chinese elevator market.

In 2014, Sigma had a partnership with EXPRESS Elevator Co., Ltd., an elevator company based in Suzhou, China as well as a subsidiary of Otis. In 2016, Express/Sigma opened their headquarters in Suzhou, China

LG Elevators was the elevator and escalator division of LG Electronics. It was acquired by Otis in 1999 and was later known as LG-OTIS Elevator Company.

LG changed its name from GoldStar in 1994 after GoldStar merged with Lucky Chemical. In 1999, it was acquired by Otis Elevator Company, later known as LG-OTIS Elevator Company from 2000 until 2003, when it was renamed to OTIS-LG Elevator Company. Later in 2006, OTIS-LG was again renamed to Otis Elevator Korea.

LG-OTIS Elevator Company (later OTIS-LG Elevator Company then Otis Elevator Korea) was a joint venture company between Otis and LG Electronics` elevator and escalator division, LG Elevators in South Korea. It was formed in 2000. The brand was renamed to OTIS-LG Elevator Company in 2003 and later Otis Elevator Korea in 2006, where it is currently known as that in South Korea

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