For the water-coal slurry gasification unit in the waste boiler process, is it necessary to design a black water discharge pipeline for the gasifier quench chamber?
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For the water-coal slurry gasification unit in the waste boiler process, is it necessary to design a black water discharge pipeline for the gasifier quench chamber?
It is said that Jinhua furnaces are not available; those currently in use work fine. It would be better if the gasification furnaces also had anti-blackening features. The gasification section is not designed with blackening in mind; the main consideration is heat recovery.
It can operate without the black water discharge pipeline; although heat recovery is more effective in this case, the gas will contain more ash, which increases the load on the washing and dust removal systems, requiring more water for these processes. As a result, the gas exiting the system will have a higher dust content, which poses adverse effects on the operation of the converter. Looking at just the vaporization furnace alone, the advantages may outweigh the disadvantages, but when considering the entire process, those advantages may not be so evident; in fact, the disadvantages could even outweigh the advantages.
The design of Jinhua furnaces also ensures a low dust content in the exhaust gas tower! Was something done to the gas scrubber?
This post was last edited by pyp222 on 2017-6-21 at 21:48. In the process of the Jinhua furnace, does the gas coming out of the furnace first pass through a cyclone before entering the scrubber tower? Similar to the process with four nozzles? Additionally, while guarantees are one thing, determining the actual situation is quite difficult; generally, as long as it does not significantly affect the system’s operation, no one bothers to delve into such details
Still the process from the quench chamber -- Venturi -- gas scrubber
In that case, the dust content in the gas must be high; could it be that the scrubber is really different? From a process perspective, to meet the dust standards, the only option is to make adjustments to the scrubber tower
Failing to implement anti-clogging measures will inevitably increase the erosion and corrosion of the process gas pipelines due to the fine ash and slag carried along by the process gas
It is said that the syngas enters the carbon scrubber together with the slag water
What do you think if the syngas and slag water pipelines are in the same line?
Although I am not particularly familiar with evolution furnaces, in my opinion, if the gasification furnace does not emit black smoke, it will inevitably increase the dust content in the gas; otherwise, more investment will be required for the gas washing system. Although it is claimed that the dust content in the gas meets the requirements, ultimately it depends on the operation of the converter during use; one cannot rely solely on what the process supplier says.