阅读说明：本技术 一种石油焦煅烧回转窑燃烧室调节工艺 (Combustion chamber adjusting process of petroleum coke calcination rotary kiln ) 是由 肖述兵 何成 曾岩东 张雷 申义 潘敬青 李硅 兰生全 赵文志 陈翰林 于 2020-05-28 设计创作，主要内容包括：本发明的目的在于公开一种石油焦煅烧回转窑燃烧室调节工艺,燃烧室温度控制在1090-1400℃,烟气中的氧含量控制在8.0-9.0％；与现有技术相比,提高石油焦中粉尘、挥发分的烧烬率,减少余热除尘器排灰量；稳定窑况,提高回转窑填充率至11％以上,减少物料在窑内飞扬,提高实收率,提高煅后焦质量；确定脱硫塔入口、出口烟气中最佳氧含量,实现本发明的目的。(The invention aims to disclose a process for adjusting a combustion chamber of a petroleum coke calcination rotary kiln, wherein the temperature of the combustion chamber is controlled to 1090-1400 ℃, and the oxygen content in flue gas is controlled to 8.0-9.0%; compared with the prior art, the burning-out rate of dust and volatile components in the petroleum coke is improved, and the ash discharge amount of a waste heat dust remover is reduced; the kiln condition is stabilized, the filling rate of the rotary kiln is improved to more than 11 percent, the flying of materials in the kiln is reduced, the actual yield is improved, and the quality of calcined coke is improved; the optimal oxygen content in the flue gas at the inlet and the outlet of the desulfurizing tower is determined, and the aim of the invention is realized.)

1. A combustion chamber adjusting process of a petroleum coke calcination rotary kiln is characterized in that the temperature of the combustion chamber is controlled to 1090-1400 ℃, and the oxygen content in flue gas is controlled to 8.0-9.0%.

2. The process for adjusting the combustion chamber of the petroleum coke calcination rotary kiln as recited in claim 1, wherein the temperature of the combustion chamber is controlled to 1120-1360 ℃ and the oxygen content in the flue gas is controlled to 8.5-9.5%.

3. The process for adjusting the combustion chamber of the petroleum coke calcination rotary kiln as recited in claim 1, wherein the temperature of the combustion chamber is controlled to 1150-1320 ℃, and the oxygen content in the flue gas is controlled to 9.0-10.0%.

4. The process for adjusting the combustion chamber of the petroleum coke calcination rotary kiln as recited in claim 1, wherein the temperature of the combustion chamber is controlled at 1180-1280 ℃, and the oxygen content in the flue gas is controlled at 9.5-10.5%.

5. The process for adjusting the combustion chamber of the petroleum coke calcination rotary kiln as recited in claim 1, wherein the temperature of the combustion chamber is controlled to 1200-1250 ℃, and the oxygen content in the flue gas is controlled to 10.0-11.0%.

Technical Field

The invention relates to a rotary kiln combustion chamber adjusting process, in particular to a rotary kiln combustion chamber adjusting process for petroleum coke calcination.

Background

In the prior art, the tail gas treatment of the first domestic rotary kiln system imitating the METSO technology still adopts the domestic traditional technology. The following problems exist in operation: the temperature of the combustion chamber reaches 1300-1380 ℃, and the lining is maintained for 2 times per year on average; the combustion chamber can not fully combust the dust-containing smoke, most of dust is sucked into a boiler and a bag-type dust collector, dust is collected for 1.5-2t every day, and sparks are mixed in the carbon powder, so that potential safety hazards exist; the boiler economizer pipeline is influenced by the fact that the rotary kiln smoke cannot be fully combusted, a large amount of smoke is accumulated on the pipeline after the boiler economizer pipeline is operated for a period of time, the heat efficiency is influenced, the pipeline is easy to corrode, the service life is shortened, and the boiler economizer pipeline needs to be stopped to clean aggregate once every 50 days, which is time-consuming and labor-consuming; ash and sulfur in the flue gas of the rotary kiln scale on the inner pipe wall of the boiler, so that the heat exchange efficiency of the boiler is low and the pipe wall of the boiler is corroded; the calcined coke has low actual yield, measures such as raw material control and burning loss reduction are adopted, and the actual yield cannot be improved; the product quality is low.

Therefore, there is a particular need for a process for adjusting the combustion chamber of a rotary kiln for calcining petroleum coke to solve the above-mentioned problems.

Disclosure of Invention

The invention aims to provide a process for adjusting a combustion chamber of a petroleum coke calcination rotary kiln, which aims at the defects of the prior art, is easy to realize and convenient and feasible under the existing conditions, greatly improves the production efficiency and reduces the production cost.

The technical problem solved by the invention can be realized by adopting the following technical scheme:

a combustion chamber adjusting process of a petroleum coke calcination rotary kiln is characterized in that the temperature of the combustion chamber is controlled to 1090-1400 ℃, and the oxygen content in flue gas is controlled to 8.0-9.0%.

In one embodiment of the invention, the temperature of the combustion chamber is controlled at 1120-1360 ℃ and the oxygen content in the flue gas is controlled at 8.5-9.5%.

In one embodiment of the invention, the temperature of the combustion chamber is controlled at 1150-1320 ℃, and the oxygen content in the flue gas is controlled at 9.0-10.0%.

In one embodiment of the invention, the temperature of the combustion chamber is controlled at 1180-1280 ℃, and the oxygen content in the flue gas is controlled at 9.5-10.5%.

In one embodiment of the invention, the temperature of the combustion chamber is controlled at 1200-1250 ℃, and the oxygen content in the flue gas is controlled at 10.0-11.0%.

Compared with the prior art, the process for adjusting the combustion chamber of the petroleum coke calcination rotary kiln improves the burning rate of dust and volatile components in the petroleum coke, and reduces the ash discharge amount of a waste heat dust remover; the kiln condition is stabilized, the filling rate of the rotary kiln is improved to more than 11 percent, the flying of materials in the kiln is reduced, the actual yield is improved, and the quality of calcined coke is improved; the optimal oxygen content in the flue gas at the inlet and the outlet of the desulfurizing tower is determined, and the aim of the invention is realized.

The features of the present invention will be clearly understood by reference to the following detailed description of the preferred embodiments of the present invention.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained by combining the concrete.

According to the process for adjusting the combustion chamber of the petroleum coke calcination rotary kiln, the temperature of the combustion chamber is controlled to 1090-1400 ℃, and the oxygen content in flue gas is controlled to 8.0-9.0%.