Dry desulfurizing process implementing automatic control based on environment friendly monitoring network and numeration table
A dry desulfurization and monitoring network technology, which is applied in measurement devices, separation methods, chemical instruments and methods, etc., can solve the problems of inability to automatically control the desulfurization system and monitor the amount of desulfurization agent in real time, and achieve the effect of improving desulfurization efficiency.
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[0035] Example 1
[0036] The tonnage of the circulating fluidized bed boiler of a power plant is designed to be 2×75t / h+1×90t / h, and the desulfurization method of the present invention is adopted, and the process flow is shown in Figure 3.
[0037] The specific design basis is as follows:
[0038] The sulfur content of burning coal is less than or equal to 1.7%
[0039] During normal production, the coal consumption of a single boiler is less than or equal to 14.5t / h
[0040]Boiler flue gas volume 150000m 3 / h
[0041] SO before desulfurization 2 Emission concentration 2660mg / Nm 3
[0042] Implement the method of applying the PLC control system to implement the calcium injection desulfurization in the circulating fluidized bed boiler furnace:
[0043] Outsourced desulfurizer---limestone powder pressure tank truck 1, which is pneumatically transported by on-board pump (0.2MPa) to 100m 3 In the storage bin 2, the particle size of the desulfurizer is required to be 0.01-...
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