January 17, the reporter learned from Lanzhou Petrochemical, 100,000 tons of slurry ash removal device through the equipment to improve acceptance, more output of 6000 tons of ash slurry FCC slurry last year to reduce maintenance costs 340,000 yuan.
Lanzhou Petrochemical 3 million tons heavy reloading device with an annual output of 150,000 tons of slurry, 140 tons re-annual output of 100,000 tons slurry. After the technical treatment, as a delayed coking unit of raw materials recycling and improve the value of FCC slurry and refinery Comprehensive economic benefits Since the oil refinery to carry out industrial amplification test, due to tank tank tension, resulting in limited production capacity can not be continuous additive production, slag and other difficult problem.To this end, Lanzhou Petrochemical will be added after the slurry transfer To clover processing company.According to the FCC oil slurry precipitator industrial amplification test results, clover oil refining plant oil refining industry, based on the test and Dalian Petrochemical oil slurry de-ash production experience, the gradual expansion of 100,000 tons / year Slurry ash removal plant put into operation smoothly during the operation of the device, the storage tank heating coil leakage, resulting in subsequent production impact.
The original coil using 'integrated' welding, arranged in groups of steam drum tiling, coil spacing of about 0.3 meters, the coil from the tank bottom height of 0.4 meters, check the maintenance of canning process neither the coil The following heat treatment, there is not enough space to accommodate the construction staff to carry out clean-up .Shitree company will be the original 'one piece' welding to 'splicing' assembly, so that each group independently connected to form a separate removal of external processing inspection maintenance mode, Avoid moving the cans in the tank, reducing the safety risk of operation and saving the cost of clearing the cans. The multi-group coils were changed from 'tiling' to 'vertical' to reduce the space between the coils and the tank bottom, The distance between the large coil pipe after the transformation of the coil heat transfer area does not change, does not affect the heating effect in the production process, the maintenance cleaning oil residue in the process, can continue to use the coil heating the bottom of the oil residue viscosity, available equipment 60% out of the amount of slag, the remaining part of the construction workers have enough space directly into the slag, shorten the maintenance inspection period more than half.
