[Haichuan Coke Oven Production Operation Questions and Answers] 4. How to replace the switch steel rope and sector wheel?

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The 25th National "Safety Production Month" in 2026. Everyone pays attention to safety and everyone will investigate and rectify potential risks on an emergency basis -------------------------------------------------- 3. What are the reasons for the increase in resistance in the regenerator and how to deal with it? answer: After the coke oven was put into operation for many years, the checker bricks on the top of the regenerator were accumulated by dust and debris, or the checker bricks were deformed due to high temperature, or the checker bricks deformed over a period of time due to excessive alkali metal content, or the contact surface with the air was blocked by gas ash, etc., resulting in a gradual increase in the resistance of the regenerator. Methods such as purging the checker bricks of the regenerator, replacing blocked checker bricks, and purging the grate bricks of the small flue can be used to reduce the resistance of the regenerator. 4． How to replace the switch steel rope and sector wheel? answer: Replacing the switch steel cable: Measure the size of the new steel rope and install the clamps in advance, or leave one end. When replacing, stop the switch exchange and perform it when the chain is loose. The non-switch end steel rope is fixed with a 5~7t chain crane or elasticizer. If the four-corner wheel has a gland, remove it first, loosen the steel rope tensioner that needs to be replaced, remove the connecting shaft or remove the steel rope clamp, and remove the old steel rope. Clamp the new steel rope according to the pre-fixed marks, tighten the screws, install the four-corner wheels with glands first, adjust the tensioner, and remove the crane or temporary tensioner. After the replacement, the switch was switched to semi-automatic switching. After the test showed no problems, it was changed to automatic switching. Replace sector wheel: Mark the operating status, then use a crowbar to lift the thallium rod onto the support, remove the screws of the exhaust plate bracket, and remove the pin on the exchange lever. Remove the small chain, replace the sector wheel of the gas exhaust disk, remove the pin and thallium rod small chain screw connected to the air cover plate, and replace the sector wheel of the air exhaust disk. Remove the bracket and sector wheel, and install the sector wheel prepared in advance with the same direction. Place the bracket on the exhaust pan in its original position and tighten the screws. Replace the lever pin and thallium rod chain or air cover. The replacement cannot be completed within one exchange. When changing direction, the thallium rod or air cover of the exhaust plate can be manually placed in a normal state as required. After installation, check whether each axis is flexible. If it is not flexible, readjust it. Check the lifting height of the adjusting wheel thallium rod to make it comply with the pre-engraved mark.