What is the impact of the amount of sludge discharged from the bottom of the sedimentation tank on the system?
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In a water-coal slurry gasification unit, what effects does the amount of wastewater discharged from the bottom of the sedimentation tank have on the system? Answer: The amount of wastewater discharged affects the system’s water balance; specifically, it influences the level in the graywater tank. If too much wastewater is discharged, the level in the graywater tank drops, while if too little wastewater is discharged, the large particles that settle at the bottom of the sedimentation tank cannot be removed, leading to scaling in the equipment and pipelines of other systems.
The amount of wastewater discharged affects the system’s water balance and, as a result, the level in the graywater tank. If too much wastewater is discharged, the level in the graywater tank drops; if too little wastewater is discharged, the large particles that settle at the bottom of the sedimentation tank cannot be removed, leading to scaling in the equipment and pipelines of other systems.
The waste discharge is high; will the system stop working if it’s not used?
Replace water in the system to improve water quality
The discharge volume at the bottom of the sedimentation tank should be kept within an appropriate range. The control is too weak to remove the mortar from the bottom of the sedimentation tank; as it accumulates more and more, this not only affects the quality of the water in the sedimentation tank (the quality of the graywater deteriorates, leading to a range of problems in the water system) but also causes the scraper machine to become overloaded ； Excessive control, exceeding the filter’s processing capacity, will cause overflow of the filter cloth, as well as a thick filter cake that cannot be dried properly.
Increasing emissions will certainly help improve the quality of the water used in gasification, but if the increase is too great, it will lead to higher water consumption, a larger volume of wastewater that needs to be treated, and waste of chemicals. It is better to optimize the operations by using data from long-term operation to determine the optimal water quality, thereby minimizing emissions
It has a significant impact mainly on the thickness of the filter cake in the filter, as well as on the height at which the agitator’s blade moves
Both being too large and too small have an impact; it is sufficient to maintain a certain thickness of fine residue on the filter cloth of the filter press
This post was last edited by 10086 on 2015-7-31 18:29. Does your discharge belt include slag discharge? In other words, does the sediment from your sedimentation tank make its way into your waste discharge pipeline? The wastewater from our sedimentation tank is sent to the vacuum belt filter; the water after filtration goes into the filtrate tank, and then a pump is used to send the filtrate back to the sedimentation tank. I don’t think the amount of waste we discharge will affect the level of water in the graywater tank. But it will have an impact for a while after the balance is disrupted; after some time, it no longer has any effect!
The impact isn’t very significant; the amount of waste discharged is too small, so more and more fine sludge accumulates in the sedimentation tank, which in turn causes the current consumption of the material scraping machine to increase