Send out the five-point policy for coke ovens; everyone should study it*

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“The five-word operational principle: one is correctness, two is balance, three is cleanliness, four is smoothness, and five is integrity. One positive aspect: The coke oven should first be operated under positive pressure. Both the gas collection pipe and the pressure at the bottom of the carbonization chamber must reach the specified pressures. This is determined by the principles of coking; only by keeping the pressure in the carbonization chamber system always higher than that in the combustion system, allowing gas to flow steadily from the carbonization chambers to the heating system, can the gaps between the bricks in those chambers be sealed with free graphite. This also prevents the formation of molten pockets, melting, or erosion of the brick structure. On the other hand, operating under negative pressure can lead to pipe blockages and a deterioration in the quality of the gas, thereby affecting normal operation, temperature stability, and the service life of the furnace. Second point: The temperature in the coke oven must be uniform ； Focus release should be carried out evenly and strictly in accordance with the plan. To ensure consistent maturity of the coke throughout the furnace, thereby guaranteeing the quality of the coke. Three cleans: The furnace door, furnace frame, and small furnace door must be thoroughly cleaned. It is an important measure for preventing gas leaks, improving the operating conditions of coke ovens, reducing pollution, protecting the iron components used in these ovens, and extending their lifespan; otherwise, it will lead to damage to those iron components, environmental degradation, and a reduction in the oven’s service life. Four-way connection: The rising pipe, bridge pipe, gas collection pipe, and gas heating channel must remain unobstructed. The channels for guiding the waste gas from the coke oven and for introducing heated gas into the oven are critical components in coke oven operation. If these gas channels become blocked or experience increased resistance, it will disrupt the normal heating process of the coke oven, cause smoke and leaks from the oven doors, damage the iron components used to protect the oven, and reduce its lifespan. 5. Good condition: The four locomotives and switching devices in the coke oven plant are always kept in good condition. This is the foundation of coke oven production. Strengthening the maintenance and repair of coke oven machinery is key to ensuring the normal operation of coke ovens. Careful operation and maintenance are essential during production; any potential issues with the equipment must be identified and reported, so as to keep the coke oven equipment in good condition and create the necessary conditions for its proper functioning. The five-word operational principle constitutes an interconnected and complementary whole: positive pressure operation of the coke oven is the prerequisite and key to the entire coking production process ； Uniform furnace temperature and uniform coke pushing (on time) are necessary conditions ； Even coke pushing (on schedule) helps to achieve uniform furnace temperature, and uniform furnace temperature in turn ensures consistent coke maturation, creating conditions for smooth coke pushing ； Thoroughly cleaning the furnace door, furnace frame, and small furnace door is an important step in improving the environment of coke ovens and enhancing management levels ； The unobstructed gas flow (four-way connection) lays the foundation for uniform furnace temperature, facilitates the implementation of the \"three cleanliness\" requirements, and reduces labor intensity ； The good condition of coke oven machinery and equipment is the foundation and pillar of coke production. In short, all of them are essential; relaxing any aspect of the operations will put coke oven production in a vulnerable position, leading to a vicious cycle and reducing the lifespan of the coke ovens. The relationship between the five-word operating principle for coke ovens and chemical product recovery: From the perspective of the production process, coke ovens represent the preliminary stage in chemical product production, and their performance directly affects the yield and quality of the recovered chemical products. Positive pressure operation ensures the quality of coke oven gas, as well as the recovery rates of products such as tar and crude benzene. Uniform defocusing enables a uniform generation of gas, which is beneficial for gas purification. Sealing the furnace door can reduce losses of coke oven gas and increase production. In short, coke oven production is a prerequisite and foundation for chemical product recovery, and it creates the conditions necessary for chemical processing processes.