Prize-winning call for proposals: Technical upgrades and energy-saving projects for water-coal slurry gasification units.
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This post was last edited by Comrade Lao Li on 2009-6-3 at 11:57. Please share what technical improvements your unit has made to its water-coal slurry gasification plants Or what measures can be taken in terms of energy conservation?
Let me start with the renovation of the flushing water system (which is currently in the testing phase). Coal-water slurry gasification units are equipped with separate flushing water pumps and flushing tanks, which generally use wastewater or raw water. The pump outlet pressure is around 15 kilograms, and it is used to flush the coal slurry pipelines as well as the slag water pipelines. After several start-up and shutdown tests, using a graywater pump in place of the flushing pump yielded satisfactory results. Further testing is underway; this approach would allow for the elimination of the two flushing pumps as well as the flushing tanks, thereby saving both electricity and water.
During on-site operations, it is sometimes necessary to wash the floor or wash hands. By using a flushing water connection, a separate water pipeline can be connected to the outlet of the flushing water pump; thus, when washing the floor, it is sufficient to open this separate water valve without having to start the pump.
The Wei River water-coal slurry gasification plant underwent burner technology upgrades, resulting in a 20% increase in production
This post was last edited by liwei909 on 2009-6-3 at 17:08; the sealing water DW used for WH’s high-pressure ash water pumps was replaced with RW, and the technical modification was a great success, becoming an example to be emulated!
Including repairs and renovations! The outer gap was adjusted and improved, and the allowable ranges for other related dimensions were determined. The size of the outer gap required by foreign experts was reduced, which successfully solved the problem of overheating at the dome of the gasification furnace. The melting issues at the outer part of the burners and at the bends of the cooling coils were also resolved, and the ablation problem of the furnace bricks was effectively addressed as well; the erosion resistance of the middle section of the furnace was significantly enhanced. The cumulative operating time of the burner has also **increased**. WH people are really awesome!
Hualu has done well in the localization of equipment, valves, etc.; it’s worth taking a look.
I once saw their energy-saving measures at Fengxi in Shanxi: lights were not allowed to be turned on during the day, even in the control room. The slag water frame does not have its lights turned on at night, while the gasification frame allows its lights to be turned on for a short time during inspections. Of course, strict regulations have also been established at the institutional level to prevent accidents from occurring.
Our plant’s natural gas furnaces produce a high amount of H2 and relatively little CO; therefore, we recover the CO2 that leaks from the vent valves in the shift conversion section
When lifting, there must be a system for cost assessment.