Texaco sludge

That weird? Slag formation should have very obvious signs! Have your testing devices all failed simultaneously, or have they been contaminated and rendered inoperative? Find the reason and explain it.

Texaco has been in China for two or three decades, and it’s still producing sludge – it’s simply unbelievable! Those “experts” in operating gasification furnaces have actually done a lot of work to ensure continuous and stable operation. As for the operating principle, I’m not yet familiar with it; I rely on the “brute-force method”. To tell you the truth, the Northwest Campus remained blocked until the pilot test was completed. What you learned there, even if you don’t admit it, will stay with you for life. You will be troubled by slag blockages for the rest of your lives, because you will never understand the proper principles of operation.

What was said upstairs is too terrifying. . . Slag clogging in the furnace has inherent causes, design-related reasons, and operational factors; it’s not the case that it won’t get clogged just by proper operation. I think coal itself has a high ash content; if raw materials such as residue oil are used in the same furnace, it won’t get clogged to this extent. These days, it’s not just Texaco; which furnace doesn’t have the problem of slag? To solve this problem, it is necessary to start from the beginning, with the structure of the furnace. It is also possible that, at a reasonable cost, the issue of slag accumulation cannot be completely eliminated.

Our Texaco boilers form sludge every year, every month, even every day; things have been relatively stable in the past year. Many modifications were made to the boilers – such as installing water-cooled walls and drip edges – and adjustments were made to parameters like the ash content of the coal. It also took a long time to determine the optimal ratio between fine and coarse coal. Experts came one after another to make changes, but what remained unchanged was the team responsible for removing the sludge. As for the third floor, do you know how many sets of Texaco boilers are still in use in China for coal chemical applications? It’s the four-nozzle design developed by East China University of Science and Technology; there is a lot of slag formation, and the furnace temperature is also high. If you know the reason behind this, please share it with us. Thank you. It’s really confusing regarding this slagging issue; several times, there were lumps of slag during slag removal, so removing the slag twice resolved the problem, and no abnormalities occurred during that time. Eventually, the operating conditions deteriorated, and after shutting down the system for inspection, it was found that the blockage was gradually increasing – I’ll respond once those reasons are identified.

It seems like slag formation in the furnace is a rather mysterious issue. It arrived quietly. It just can’t be handled properly.

The main reason is the change in coal quality/

Hehe! To be honest, it’s indeed offensive; then go ahead and encourage the hiring of experts from home and abroad indefinitely – after all, you have plenty of money and will never run out of it.

This phenomenon is almost certainly due to a significant change in the quality of the coal fed into the furnace.

I have encountered this situation before; there were no signs at all before the slag buildup occurred. The last time slag was removed, everything was normal, but when slag was removed again, it was found that the amount of slag was less than usual. I experienced that issue because the furnace temperature rose too much, causing the slag attached to the furnace wall at the slag outlet to flow downward rapidly. A large mass of slag accumulated there, and eventually it fell into the quenching chamber, covering the bottom of the cone and creating an overhang above the slag breaker. Slight fluctuations in the liquid level of the quench chamber occurred when the slag fell into it.