Phosphogypsum Conveying Lifeline
Guiyang Zhongjian Phosphorus Fertilizer Co., Ltd. since the establishment of the plant has been the use of slurry pipeline transport extraction Workshop discharge of phosphogypsum, the total length of the slurry pipeline 8.34 kilometers, but in the use of the process due to the pipeline joints, long distance, often the pipeline leakage incident, the annual construction of only the cost of about 30 million yuan. And once there is a leak in the dam body, it will cause incalculable damage to the attachment residents and the environment. If Phosphogypsum pulp is stacked in the reservoir area for a long time, it will pollute the groundwater source. And it is not possible to make efficient use of the reservoir area.
Guiyang Sinochem Phosphorus Fertilizer Co., Ltd. after the inspection of the national conveyor system, decided to use tubular belt conveyor to transport phosphogypsum, creating a pioneer in the same industry phosphogypsum transport. After receiving this news, the company in March 2011 began to mention two sets of conveyor solutions, at the same time the use of tubular belt conveyor and slurry pipeline transport for comparative analysis, the use of tubular belt conveyor can save users at least 35 million yuan per year, and can extend the service life of the reservoir area for 4-5 years, Avoid the pollution of phosphogypsum pulp to the environment.
The technical difficulties of the tubular belt conveyor are outstanding, mainly because the phosphogypsum characteristics are very special, the granularity is small, contains the 20~30% moisture, the material abrasion is strong, the corrosion is strong. Since this is the only conveyor line for Phosphogypsum, the operating time is not less than 8,300 hours per year, so the reliability requirements for continuous conveyor systems are very stringent. At the same time, in close to the head position there is a 63?horizontal turn, the turning section under the highway, subject to the terrain limit, the turning radius is very small, and then a climb finally reached 1030 elevation of the discharge plane, therefore, the layout of the technology is very difficult.
After the two companies have made effective communication and agreement on technical issues on a number of occasions. Our company set up a field project department, and timely dispatch of on-site technical team, responsible for site design and on-site technical issues for coordinated communication.
Since this conveyor line is the lifeline of Guiyang Sinochem Phosphorus Fertilizer Co., Ltd., the sooner it is built, the more it can reduce the pollution to the environment in advance, is a major livelihood project. Therefore, our company has adopted the site side design side construction way to improve efficiency, grab progress, grasp the duration.
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