Electric heat tracing for fire-fighting pipelines in Heidaigou Open-pit Coal Mine
Heidaigou open-pit coal mine fire pipe electric heat tracing
Heidaigou open-pit coal mine, affiliated to China Shenhua Group Junger Energy Co., Ltd., is one of the three main projects of the first phase of the Junger Project, a key project during the national "Eighth Five-Year Plan", and is a large-scale open-pit coal mine designed and constructed by China itself. In 2006, after capacity expansion and transformation, the annual output of raw coal in Heidaigou open-pit coal mine reached 2500 million tons, becoming the largest open-pit coal mine in China.
As a super large coal mine, Heidaigou open-pit coal mine has a design mining range of 42.36 km2, recoverable raw coal reserves of 14.98 billion tons, a designed annual production capacity of 2 million tons, and a service life of 000 years. It is located in Junger, located in the southwest of Inner Mongolia and the east of Ordos City, with cold and long winters, and extreme low temperatures can be as low as -75 °C.
In such a cold climate, coal mine fire pipes are prone to freezing, affecting the use, and the importance of fire pipes for coal mines is self-evident, which has also become an urgent problem for Heidaigou open-pit coal mine. The staff of Heidaigou open-pit coal mine learned that the electric heating system has a good thermal insulation effect on the winter frost protection of pipelines, and further learned that our company is a long-term cooperative supplier of large industrial enterprises such as PetroChina and Sinopec, so they chose to cooperate with our company.
In view of the insulation needs of the fire pipeline of Heidaigou open-pit coal mine, the Anhui Huanrui project team went deep into the site to communicate with the owner, introduced the characteristics of different models of electric heating products to the owner, and combined with the characteristics of long pipeline and low ambient temperature of the fire pipeline in Hedaigou open-pit coal mine, it recommended the use of series constant power electric heat tracing.
Series constant power electric heat tracing advantages
1. Series constant power electric heat tracing is an electric heating product by the core wire heating element, that is, in the core wire with a certain resistance through the current, the core wire emits Joule heat, due to the resistance of the unit length of the core wire and the current passed, the entire length is equal, the heat everywhere is equal, will not be as parallel electric tropical with the increase of the length of use caused by low tail power.
2. The use length is long, which is 5-12 times that of ordinary electric heat tracing, and for long-distance pipelines that need heat tracing, tandem electric heat tracing is an ideal heat tracing product.
Anhui Huanrui technical team exquisite technology and high-quality product quality, won the trust of Heidaigou open-pit coal mine staff, its fire pipeline a total of 15000,<> meters of series constant power electric tracing, now the project has been completed, when the cold season comes, open Huanrui electric heating system can ensure the smooth flow of its fire pipeline.
As the largest open-pit coal mine in China, Heidaigou open-pit coal mine is of great significance to ensure energy supply, and Anhui Huanrui is very honored to participate in the construction of this project and contribute its own strength. The completion of the Heidaigou open-pit coal mine fire pipeline electric heating project also provides a very good project verification for Huanrui products, which can fully withstand the test of explosion-proof and anti-corrosion environment.
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