How to deal with water accumulation on the roof of a coke oven during heavy rain

Clean it promptly. However, cleaning is prohibited in the fire viewing holes, carbon removal holes, and coal loading holes. If water accumulates on the top of the furnace, it indicates that the slope of the furnace top is insufficient or there are low-lying areas. In the currently designed furnaces, there is a 50mm slope on the top of the furnace when it is in operation, with the higher side in the middle and the lower sides on the edges; this helps water to flow away during rain and prevents water accumulation

My opinion: If rainwater enters the carbonization chamber, it will vaporize rapidly and expand, posing a risk of explosion, which is very dangerous. Suggestions: 1. Clear any water that accumulates on the top of the furnace promptly by assigning personnel to do so. 2. Seal any gaps in the furnace lid as soon as possible. 3. Seal the openings for monitoring the fire as well as the gaps between bricks using coal ash mortar

The roof of a new coke oven is relatively flat with a certain slope, but over time, its surface also becomes uneven and pitted. This requires regular leveling of areas with significant unevenness. Also, what was mentioned upstairs is even more crucial.

Sweep the water. Seal the coal loading holes and the fire viewing hole covers; if sealing them with mud is not effective, butter can be used for sealing. Stop the Out of the oven operation.

The surface temperature on the top of the furnace is also quite high; using butter won’t work – everyone in the class needs to go up there and sweep hard with brooms!

Emergency measures during heavy rain: When it rains heavily, water can flow back into the carbonization chamber or combustion chamber. Since coking ovens are built with silica bricks, they are not suitable for dealing with sudden changes in temperature, which can easily lead to damage to the oven walls and reduce its lifespan. Additionally, the temperatures in the carbonization chamber and combustion chamber are very high; if water enters these areas, it will expand rapidly and cause an explosion. Therefore, the following measures must be taken: ① Stop the operations of taking out the product and loading coal, to prevent water from accumulating on the top of the furnace and flowing into the carbonization chamber or combustion chamber in large quantities ； ②Quickly organize personnel to sweep away the water accumulated on the furnace top from both sides of the machine and coke ； ③Organize personnel to seal the furnace lid with coal slurry ； ④Do not take temperature readings when it is raining moderately to heavily. ⑤When it is raining heavily, check whether there is water accumulation in the main flue; if the water level rises, start the pump immediately to remove the water.

Thank you all for your valuable suggestions. Since we are in a rainy area, we need to take this issue into consideration as a precaution. I am very grateful for all of your advice.

During heavy rain, water can flow into the carbonization chamber or combustion chamber. Since coke ovens are typically built with silica bricks, these bricks cannot withstand sudden changes in temperature and are prone to damage, which affects the lifespan of the coke oven. Furthermore, the temperature in the carbonization chamber of the coke oven is very high; when water enters this chamber, it vaporizes and expands rapidly, which can lead to explosions. Therefore, necessary preventive measures must be taken. 　(1) If water accumulates on the top of the furnace, personnel should be dispatched promptly to clear it away. 　(2) The gaps in the furnace lid must be sealed promptly; if there is no time, coal from a coal cart can be used to seal those gaps. 　(3) Seal the fire viewing holes and brick joints tightly with coal slime mortar.

9# hjsmqgs Since water has accumulated, it indicates that the top of the furnace is not level. The complete solution is to renovate the upper layers of the furnace; as a temporary measure, one can simply cover the observation holes tightly, and then wait for the rain to evaporate

First of all, it is necessary to prevent large amounts of water from entering the observation holes and the carbonization chamber; drainage from the furnace roof should be improved. Generally, not too much water accumulates on the furnace roof. If too much water does accumulate, it indicates that there are low spots on the furnace roof, and personnel should be organized to clean those areas

In the past, water accumulation in the vertical flue has also occurred, especially when water entered the flue where thermocouples were installed, leading to failures of those thermocouples (with the ceramic casing cracking). Later on, raising the base of the vertical flue cover so that it was slightly above the top surface of the furnace proved to be very effective in preventing water from entering.

Before the rainy season, thorough grouting of the roof is necessary to address the root problem. Of course, if water has already accumulated there, the only thing to do is to sweep it away quickly; there’s no need to use a pump, right? Hehe