Focus on heavy equipment
The main uses of petroleum coke are prebaked anodes and anode pastes used in electrolytic aluminum, carbonizers produced in the carbon industry, graphite electrodes, silicon in the smelting industry, and fuels. According to the structure and appearance of petroleum coke, petroleum coke products can be divided into four types: needle coke, sponge coke, pellet coke and powder coke. Different types of petroleum coke have different uses and need to be dried using a petroleum coke dryer before use.
Petroleum coke dryer features:
1. Combined lifting plate
According to the changes in the physical properties of the material during the drying process in the petroleum coke dryer, a combination of lifting plates with multiple structures is used to form a uniform material curtain in the barrel, which can fully conduct heat and mass transfer with the hot flue gas. For high-humidity viscous materials, there will be a chain breaking device to prevent clogging, blocking materials and breaking accumulated balls. For materials with excellent fluidity, spoon-shaped arc plates are used. As a result, the evaporation intensity per unit volume reaches 40~80 kg/m3.h, and the evaporation intensity is 50~ higher than that of traditional coke dryers.
2. Aligning roller device
The petroleum coke dryer adopts a different bearing model and structural form from the supporting wheel of the traditional coke dryer. The supporting wheel and the wheel belt are self-constrained to maintain line contact, and the friction surface contact is wider and more balanced, ensuring the service life of the supporting wheel and the wheel belt. , which enhances the stability of cylinder operation. And appropriately reduce the angle between the supporting wheels, reduce running resistance and reduce power consumption.
3. Reasonably adjust the speed
According to the different physical and chemical properties of the dried materials, the drying residence time is different. The design adopts rotating speed operation to fully ensure the drying quality. It is generally equipped with electromagnetic speed regulation or variable frequency speed regulation motor.
4. Dust collection tail cover design
According to the requirements of different dry materials, the petroleum coke dryer is designed to expand the cavity of the tail hood and change the exhaust gas flow direction, so that the tail hood can take on the primary dust collection function, greatly reducing the dust collection pressure of subsequent dust collectors, and the exhaust emission indicators will be lower In the national standard.
5. New sealing device
The front and rear sealing rings of the petroleum coke dryer draw lessons from the sealing device of the rotary kiln, which is composed of a labyrinth device. It is temperature-resistant and wear-resistant, has good sealing effect, long service life, and is easy to install and maintain.
Zhengzhou Jiutian Machinery is a professional manufacturer of petroleum coke dryers. It has undertaken a number of petroleum coke drying projects. With its advanced technical concepts, complete comprehensive supporting capabilities, efficient energy-saving and environmentally friendly equipment and after-sales service, it has won praise from the industry. It enjoys a high reputation in the petroleum coke drying market.
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