Combustion device of petroleum coke slurry

A combustion device and petroleum coke technology, applied in the direction of burners, combustion methods, combustion types, etc., can solve the problems of low combustion temperature of petroleum coke slurry, increased load of desulfurization equipment, high nitrogen content, etc., to improve flame stability, improve Effect of heating rate and specific surface area increase

Inactive Publication Date: 2010-03-10
XI AN JIAOTONG UNIV
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Problems solved by technology

However, due to the low volatile content of petroleum coke slurry, it is difficult to ignite and stabilize combustion at the initial stage of combustion; the content of sulfur oxides produced after combustion of petroleum coke slurry is high, and the load on the desulfurization device increases; the nitrogen

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  • Combustion device of petroleum coke slurry

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Embodiment Construction

[0014] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0015] see figure 1 , the present invention includes a regenerator cavity 9 with an adjustable insertion depth arranged in the furnace. A fuel / gas on duty nozzle 1 connected to the heat storage chamber 9 is provided, and a petroleum coke slurry atomizing nozzle connected to the heat storage chamber 9 is sequentially set on the outside of the fuel / gas duty nozzle 1 from the inside to the outside. Pipe 2, the inner combustion air nozzle 3 and the outer combustion air nozzle 5, the outlet of the inner combustion air nozzle 3 and the outer combustion air nozzle 5 is a flared structure, the inner combustion air nozzle 3 and the outer The entrance of the combustion-supporting air nozzle 5 is also provided with an air-conditioning baffle 4 for adjusting the air volume, and the inner combustion-supporting air nozzle 3 and the outer combustion-supporting air nozzle 5...

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Abstract

The invention relates to a combustion device of petroleum coke slurry, comprising a heat accumulation cavity, a fuel oil/gas duty nozzle, a petroleum coke slurry atomizing nozzle, an inner combustionair nozzle and an outer combustion air nozzle. The heat accumulation cavity is arranged in a hearth; the fuel oil/gas duty nozzle is arranged on a furnace wall and communicated with the heat accumulation cavity; the petroleum coke slurry atomizing nozzle, the inner combustion air nozzle and the outer combustion air nozzle which are communicated with the heat accumulation cavity are sequentially sleeved at the outer side of the fuel oil/gas duty nozzle from interior to exterior; and an inner combustion air swirl generator and an outer combustion air swirl generator are respectively arranged inthe inner combustion air nozzle and the outer combustion air nozzle. Aiming at the characteristics of combustion difficulty and high combusting NOx contents of the petroleum coke slurry, the inventionadopts an atomizing mode to improve the temperature increase rate of petroleum coke particles; an ignition heat lowering technology realizes the stable ignition and the low-pollution combustion of the petroleum coke slurry; and the invention has the advantages of strong pertinence, convenience, adjustment, mature technology, high combustion efficiency and convenient processing and manufacture.

Description

technical field [0001] The invention belongs to a combustion device in the technical field of thermal energy and power engineering, and in particular relates to a petroleum coke slurry combustion device. Background technique [0002] Petroleum coke is a product converted from heavy oil produced by crude oil distillation or petroleum asphalt, residual oil, and tar through coking treatment (thermal cracking process). It is a by-product of petroleum deep processing. In recent years, the delayed coking process has developed rapidly, and the deep processing of petroleum has become one of the main technical routes of the petrochemical industry. Therefore, the output of petroleum coke has increased rapidly. [0003] Petroleum coke is a high calorific value, high sulfur content, low ash, low volatile product. The content of fixed carbon in petroleum coke is as high as 80% to 90%, but the volatile content is only about 10%. The fuel properties are very close to anthracite. The fuel...

Claims

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Application Information

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IPC IPC(8): F23C5/08F23C7/00F23D11/00F23K5/02
Inventor 惠世恩范庆伟周屈兰徐通模赵钦新谭厚章
Owner XI AN JIAOTONG UNIV
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