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Petroleum Coke Rotary Dryer Product Description
Petroleum coke is the vacuum residue of petroleum, which is produced by cracking and coking at 500-550 °C in a coking unit. Petroleum coke is a product obtained by the process of separating light and heavy oil from crude oil by distillation, and then the heavy oil is thermally cracked. Glossy, the coke particles have a porous structure, and it is generally considered to be an amorphous carbon body, or a black solid coke with a needle-like or granular structure containing tiny graphite crystals in a highly aromatized polymer carbide. 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°C, 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 Jiutian Machinery is fortunate to undertake a number of domestic petroleum coke drying projects. The project has won high praise in the industry and is well-known in the petroleum coke drying market by virtue of its advanced technical concepts, perfect comprehensive support capabilities, high-efficiency, energy-saving and environmentally friendly equipment and after-sales service.
Petroleum Coke Rotary Dryer Working Principle
The petroleum coke drying system consists of 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.
The material flow of petroleum coke is: petroleum coke with a moisture content of 12-15% is crushed to less than 10mm by a crusher, conveyed into the drum to achieve downstream drying, and the petroleum coke is continuously picked up and scattered in a spiral under the inner layer Moving forward, through the inner, middle and outer three layers of drums, the heat exchange between petroleum coke and hot air is realized. The petroleum coke that has achieved the drying effect travels quickly and is discharged from the drum under the action of wind and its own gravity, and the petroleum coke is fully dried within the control stroke. , so as to achieve the drying effect, the moisture of the material is reduced to less than 3%, the drying process is completed, and it is discharged by the screw conveyor. The control system monitors and automatically adjusts the operating parameters to ensure the drying capacity, product quality and safe and stable operation of petroleum coke.
The drying gas process is: natural gas or diesel is burned by the burner to generate high flue gas, and the temperature of the clean air is adjusted to 180-300 ° C, and the induced draft fan after the dryer is sucked into the dryer to dry the petroleum coke, evaporate the water, and the temperature The temperature is lowered to 50-80 °C and discharged from the dryer, and the dusty moisture is collected by the cyclone dust collector and filtered and purified by the pulse bag filter and discharged up to the standard.
Calcined Petroleum Coke Dryer Features:
1. It can realize intelligent control, one-button operation, automatic adjustment of operating parameters, and the dryer always runs in the best state to ensure that the moisture of the dried materials is uniform and stable, which is more energy-saving than traditional dryers.
2. With four-wheel drive, the transmission is more stable and reliable.
3. Compared with the single-cylinder dryer, the area is reduced by about 50%, and the civil construction investment is reduced by about 50%.
4. The internal structure of the dryer adopts a variety of high-efficiency lifting plate combination modes, which can effectively control the drying process and heat distribution. The exhaust gas discharge temperature is low and the heat utilization rate is high.
5. The material flow is controlled by frequency conversion speed regulation, which can easily adjust the desired final moisture index according to user needs.
6. Modular dust collection, dust removal, purification, heat recovery and utilization configuration, safe and environmentally friendly.
7. Equipped with a variety of new energy-saving hot blast stoves, which are highly efficient and energy-saving, controllable heating, easy to operate, reduce energy consumption by about 30%, reduce power consumption by 20%, and lower operating costs.
| Model | Capacity(t/h) | Evaporative capacity(t/h) | Initial moisture (%) | Final moisture (%) | Inlet air temperature(ºC) | Total power(kw) |
|---|---|---|---|---|---|---|
| JTSG2006/3 | 4.3-2.6 | 0.6-0.78 | 12-15 | ≤3 | 180-300 | 40-60 |
| JTSG2008/3 | 6.4-3.5 | 0.85-1.05 | 70-90 | |||
| JTSG2010/3 | 7.6-4.6 | 1.08-1.35 | 80-100 | |||
| JTSG2211/3 | 9.6-5.7 | 1.36-1.7 | 110-130 | |||
| JTSG2512/3 | 11.6-7 | 1.65-2.07 | 140-160 | |||
| JTSG2912/3 | 14.1-8.5 | 2-2.5 | 170-190 | |||
| JTSG3212/3 | 15.5-9.3 | 2.2-2.75 | 210-240 |
Our company's products have been successfully exported to Vietnam, Zimbabwe, Uzbekistan, Uganda, Philippines, Thailand, South Africa, Russia, Poland, Nigeria, Mexico, India and other countries and regions, and have been highly recognized by customers.
Founded in 2003, Zhengzhou Jiutian is an enterprise with 200 employees committed to enhancing clients productively, profitability, and safety. Jiutian has developed more than 200 patented products for the drying machine. Jiutian Machinery products include biomass drying and pelletizing production line, feed dregs drying equipment, coal drying upgrading equipment, poultry manure drying equipment, coconut fiber, and coir drying machine, and related wood shaving machine, pellet machine, dehydration machine, carbonization furnace, etc.
At present, Jiutian not only has a huge customer resource system and considerable market share in the country but also in the UK, Russia, Greece, Italy, Israel, Morocco, Congo, Côte d'Ivoire, Madagascar, Australia, India, Vietnam, Laos, Indonesia, Malaysia, Sri Lanka. In Chile, the United States and other countries have established a case of dryers and successfully put them into production, to achieve the quality and technology of dryer products and international standards.
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