Leakage in multiple valve bodies of the 4.3-meter ramming coke riser
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Multiple valve bodies in the 4.3-meter ramming coke riser are leaking. Has your unit encountered such a problem? We started operations in 2003; apart from welding, what other methods can be used to address this issue?
Our company has replaced more than 30 of them; the replacement solutions are available on the forum.
It’s normal; either repair it or replace it.
There’s no good way to fix a leaking valve body; it either needs to be repaired or replaced. Leaks in the valve body usually occur at the shaft connection.
Apart from welding, of course, it’s to replace it with a new one. Additionally, you can also apply acid-treated mortar, or use high-temperature adhesive. Try these all
1. Steel plates can be used to create clamps, which are sealed to the valve body with clay mortar. 2. Epoxy resin can also be used for sealing
If replacement is not allowed, different methods can be employed depending on the location to extend its useful life. For example: using check valves, raising the height of the support forks, and sealing with phosphate slurry.
Learned 4# wzf1830
The most thorough solution is to replace it; of course, welding is also an option if it can ensure quality. As for using various types of fireclay or refractory materials, large clamps, packing, and similar methods, they are not the best solutions; they can only provide temporary fixes. If your coke oven is about to be dismantled, then such methods can be used ； Because patching, packaging, and large clamps cannot prevent further leaks of ammonia and tar, the leaking area will continue to corrode more and more, which is dangerous over time.
It’s necessary to find the root cause of the problem – why is it keeping failing? Is it a quality issue or improper operation? Once the reason is found, it can be overcome