Wet smoke self-temperature returning integrated smoke purification device and application thereof
A flue gas purification and self-heating technology, which is applied in combination devices, chemical instruments and methods, dispersed particle separation, etc., can solve the problems of forming large droplets, falling near chimneys, affecting local climate, chimney precipitation, etc. Achieving good design concept and promotion prospects, eliminating the problem of chimney rain, and compact equipment
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[0030] Example 1
[0031] A self-recovery integrated flue gas purification device for wet flue gas, the structure of which is as follows figure 1 As shown, it includes a washing tower outer cylinder 3, a flue gas outlet 13 arranged at the top of the washing tower outer cylinder 3, an absorption liquid storage cavity 9 arranged below the washing tower outer cylinder, connected to the side of the washing tower outer cylinder 3 and extending To the intake flue extension tube 2 in the scrubber outer tube 3, the front end of the intake flue extension tube 2 is provided with a flue gas inlet 1, a flue gas inlet 1, an intake flue extension tube 2 and a scrubber outer tube 3 It can be transformed from the original flue and scrubber device.
[0032] A co-directional downstream nozzle 4 and a reverse nozzle 5 are arranged in the intake flue extension tube 2, wherein the droplets sprayed by the co-directional downstream nozzle 4 flow in the same direction as the flue gas, and form an up-and-...
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[0042] Example 2
[0043] The present invention takes the actual coal-burning flue gas as the research object for experimental research. Lead out 1000m from the flue of coal-fired boiler 3 / h actual coal-fired flue gas, a set of wet flue gas self-recovery integrated flue gas purification device has been established. The inlet flue gas temperature is 150℃, SO 2 The concentration is 1200mg / m 3 , The dust concentration is 5g / m 3 . The test system uses limestone-gypsum wet desulfurization process to desulfurize the flue gas with a liquid-to-gas ratio of 10L / m 3 , The empty tower has a gas velocity of 3m / s, a calcium-sulfur ratio of 1.1, and a gas-liquid contact time of 10s. After 100 hours of operation, SO 2 The outlet concentration is controlled at 100mg / m 3 Within, the outlet dust concentration is controlled at 0.4g / m 3 Below, the outlet flue gas temperature is above 80°C.
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