Double-vortex smoke washing device

Abstract

A dual-vortex fume washing apparatus has a main pipe in which there is a vortex unit. The upper plate of said vortex unit is fixed to the main pipe by its boundary without any gap, and has a central force field barrel on it. A draught tube is arranged on the wall of main pipe above said uppe plate. The distance between the overflow outlet of water sealing unit and the lower plate is not greater than 0.3 m. The high-speed fume flows through two vortex action regions to elongate the contact time between gas, solid and liquid. Its advantages are high effect to remove S and dust, low liquid/gas ratio, and low water content in fume.

Description

technical field [0001] The invention relates to a double-vortex flue gas washing device for capturing sulfur dioxide and smoke particles, especially fine particles, from flue gas. Background technique [0002] At present, the main pollutants in my country's atmosphere are suspended particles of ≤ 10 μm, and the existing dust removal devices have little effect on fine dust with extremely small mass. For this reason, in 2002, the 863 Program of the Ministry of Science and Technology of the People's Republic of China specially compiled various projects in the field of resources and environment for public bidding, including "efficient control technology and equipment for fine particle flue gas in coal-fired power plant boilers" waiting to be tackled. [0003] Chinese patent document CN205759U discloses a "flue gas double-alkali desulfurization and dust removal device", which has a main cylinder, the main cylinder has a flue gas inlet and outlet and an alkaline liquid spout, and ...

AI Technical Summary

Problems solved by technology

However, judging from the current usage, this type of device has the following main disadvantages: First, there is a gap between the upper plate of the swirl plate device and the inner wall of the main cylinder, and part of the high-speed flue gas is short-circuited without being processed by the swirl plate device, and directly rises, which is extremely It is easy to form turbulence, and the flue gas coming out of the through hole of the upper plate of the swirl plate device suddenly expands due to the absence of the center force field device before forming a vortex, which reduces the speed of the flue gas and affects the desulfurization and dust removal effect; the second is the main cylinder The overflow in the lower part is low, and the water seal part only acts as a water seal, basically does not contact with the swirl plate device, does not produce the effect of a vortex fluidized bed, and the dust, sludge and slurry accumulated on the device is not easy to quickly remove, and it is relatively easy to block. Affect

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