Calcined petroleum coke rotary kiln

Abstract

The invention provides a calcined petroleum coke rotary kiln, including a drying device and a rotary kiln. The drying device comprises a cylinder body, and a feeding port and a discharge port, which are arranged respectively on the front end and the rear end of the cylinder body; and the front end of the cylinder body is also provided with a high temperature flue gas chamber. The rotary kiln comprises a kiln rotary kiln body, a feed chute and a rotary induced draught fan, which are arranged on the feed end of the rotary kiln body, and a fuel nozzle and a fuel air blower, which are arranged at the discharge end of the rotary kiln body; and the middle section of the rotary kiln body is provided with at least two kiln air blowers. The discharge port of the cylinder body is connected with the feed chute of the rotary kiln. The invention has the beneficial effects that the calcined petroleum coke rotary kiln has large output and small burning loss of the calcined petroleum coke, does not consume extra fuel for normal production, significantly reduces petroleum coke burning loss, enhances the true density of the calcined petroleum coke, reduces ash and improves the quality of the calcined petroleum coke.

Description

technical field [0001] The invention relates to the field of processing equipment in the carbon industry, in particular to a rotary kiln for calcining petroleum coke. Background technique [0002] The production process of heat-treating carbonaceous raw materials at high temperature to remove the contained volatile matter and correspondingly improve the physical and chemical properties of raw materials is called calcination. The purpose of calcination is to discharge the moisture and volatile matter in the raw material, increase the density and mechanical strength of the raw material, improve the electrical conductivity of the raw material, improve the chemical stability and oxidation resistance of the raw material, and calcination is the first process in the production of carbon products. The quality of calcined material directly affects the quality of carbon products. [0003] Calcined petroleum coke is mainly used for the prebaked anode and cathode used in electrolytic a...

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Problems solved by technology

[0004] Existing petroleum coke calcination equipment generally adopts rotary kiln and calcination kiln, but the distribution of preheating, calcination and cooling zones in the existing rotary kiln is unreasonable, resulting in serious carbon loss, and in order to strengthen calcination, a large amount of natural gas needs to be consumed As a fuel for calcining petroleum coke, energy consumption is serious. At the same time, the water content of petroleum coke is too high, and the petroleum coke is burned.

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