The vacuum residue of petroleum is produced by cracking and coking at 500-550 °C in a coking unit. Petroleum coke (Petroleum coke) is a product that is converted from crude oil to light and heavy oil after distillation and the thermal cracking of heavy oil. From the appearance, coke is a black block with irregular shapes and different sizes. , with a metallic luster, the coke particles have a porous structure, it is generally considered to be an amorphous carbon body or a black solid with a needle-like or granular structure containing tiny graphite crystals in a highly aromatized polymer carbide. coke. The main element composition is carbon, accounting for more than 80%, hydrogen 1.5%-8%, and the rest are oxygen, nitrogen, sulfur, and metal elements. The carbon-hydrogen ratio is 18-24, the relative density is 0.9-1.1, the ash content is 0.1%-1.2%, and the volatile matter is 3%-16%. Calcined petroleum coke can be divided into green coke and cooked coke according to the processing method. Green coke is obtained from the coke drum of the delayed coking unit, also known as primary coke, which contains more volatile substances and has poor strength. Cooked coke is obtained by calcining green coke at 1300℃, also called calcined coke. Calcined petroleum coke is a partially graphitized form of carbon. Widely used in metallurgy, chemical industry, and other industries as electrodes or raw materials for the production of chemical products.
The moisture content of petroleum coke is 12-15% after pyrolysis and calcination at high temperature, wet coke quenching, and cooling process. Before grinding and pulverizing, the moisture must be dried to less than 3%. Zhengzhou Dingli New Energy Equipment Co., Ltd. has the honor to undertake a number of domestic petroleum coke drying projects. The project has won praise in the industry for its advanced technical concepts, perfect comprehensive support capabilities, high efficiency, energy-saving, and environmentally-friendly equipment and after-sales service, and is well-known in the petroleum coke drying industry. market.
The petroleum coke drying system consists of a crusher, pulverizer, gas (oil) hot blast stove, three-layer drum dryer, cyclone dust collector, pulse bag filter, conveying equipment, packaging machine, and power distribution operation control device.
Petroleum coke dryers mostly use multi-layer tumble dryers, which have a large processing capacity and a small footprint. The wet material is heated for a longer time and reduced heat consumption. Drying one ton of petroleum coke has high production efficiency and low cost. At present, petroleum coke dryers are mostly environmentally-friendly tumble dryers. The heat source is mainly natural gas, oil, coke oven gas and other fuels, and the drying process is environmentally friendly and clean.
Zhengzhou Dingli Industrial Tumble Dryer manufacturer customizes petroleum coke drying equipment of various specifications and models and heat source forms, supporting the corresponding dust collector system, with low operating cost, stable performance and mature technology.
| Model | Capacity(T/H) | Initial Moisture(%) | Final Moisture(%) | Drying Temperature (℃) | Total Power(KW) | Plant Area(㎡) |
|---|---|---|---|---|---|---|
| DLSG2006/3 | 4.3-2.6 | 12-15% | ≤3% | 180-300℃ | 40-60 | 8*15 |
| DLSG2008/3 | 6.4-3.5 | 70-90 | 8*18 | |||
| DLSG2010/3 | 7.6-4.6 | 80-100 | 8*20 | |||
| DLSG2211/3 | 9.6-5.7 | 110-130 | 10*23 | |||
| DLSG2512/3 | 11.6-7 | 140-160 | 10*25 | |||
| DLSG2912/3 | 14.4-8.5 | 170-190 | 10*28 | |||
| DLSG3212/3 | 15.5-9.3 | 210-240 | 12*30 |
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