There are two coke ovens; one chimney is emitting steam while the other isn’t – why is that?
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The two coke ovens have the same structure and use the same type of coke oven gas. However, in winter, one chimney emits a large amount of steam while the other emits almost none. What’s the reason for this?
White smoke coming from coke ovens is a common phenomenon in winter. The white smoke coming out of the chimney is actually water vapor. When exhaust gas is released from a chimney, white smoke is formed when its diffusion rate is slower than the condensation rate of water vapor in the exhaust gas. The main reasons for white smoke coming from chimneys are as follows. 1. Water accumulates in the flue, and it is carried away by the hot exhaust gases, increasing the moisture content in those gases. II. Steam leaks into the gas preheater and enters the gas system. III. Poor drainage of the condensate pipes in the gas pipeline leads to gas containing water. IV. When the temperature drops suddenly, the water vapor in the exhaust gas is rapidly condensed. V. The temperature of the recycled furnace gas is too high. VI. Due to a switch failure, the chain failed as it had not been reversed for an extended period of time. For these reasons, it is necessary to ensure proper flood control and drainage for the flue ducts, carry out regular inspections of the water seals for gas condensate, inspect the preheaters, and conduct routine checks on the exchange equipment.
One has desulfurization and denitration functions enabled, while the other does not
;P definitely can’t be like that.
The side of the coke oven that is emitting steam must be a cool coke platform; sealing the flue corridor on that side will suffice.
1. Compare the flow rate of coke oven gas; higher usage levels tend to cause white smoke. 2. Compare the temperature of the flue gas; higher temperatures can lead to the appearance of white smoke. 3. Pay attention to the liquid level in the flue deep well pump; an excessively high level will definitely result in white smoke. These are the situations most likely to cause white smoke during daily production; check them first
With the current weather, it’s normal for nothing to smoke; those that do smoke are as described on the first floor. Check the operating conditions.