Exhaust gas washing tower and asphalt smoke tail gas incineration system and process
A tail gas incineration and cleaning tower technology, applied in the direction of incinerators, combustion methods, combustion types, etc., can solve the problems of tail gas induced draft fan accident shutdown, affecting the normal operation of the process system, etc., to achieve the effect of ensuring normal operation
Pending Publication Date: 2022-07-08
ACRE COKING & REFRACTORY ENG CONSULTING CORP DALIAN MCC
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Problems solved by technology
[0007] The second exhaust gas treatment method is a process developed on the basis of the first method through technological transformation. In the actual operation process, it is found that under the action of the exhaust gas induced draft fan, the flow velocity of the exhaust gas is accelerated, and the exhaust gas is discharged from the cleaning tower. The scrubbed exhaust gas is sprayed through the oil washing cycle, carrying a large amount of oil washing mist droplets. When passing through the mist trap packing, the mist droplets deposited on the surface of the mist trap packing do not fall downward, but are discharged out of the exhaust cleaning tower together with the exhaust gas. After long-term operation, the exhaust pipe upstream of the exhaust fan will accumulate some washing oil, which will lead to frequent accidental shutdown of the exhaust fan and affect the normal operation of the entire process system
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[0023] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings:
[0024] like figure 1 As shown, an exhaust gas cleaning tower according to the present invention includes a tower body and a cleaning section, a mist capturing section and an exhaust gas discharge section which are sequentially arranged in the tower body from bottom to top; The oil spraying device 12 and the oil washing spraying device 12 are arranged in the tower body above the cleaning packing 11; The upper clapboard 14 is set in the tower body, and the lower clapboard 15 is set in the tower body below the mist trapping packing 13; The separation liquid outlet B3 is set, corresponding to the high end of the lower baffle 15, and the tail gas outlet B1 is set on the side wall of the tower body below the lower baffle 15; B1 is communicated with the tail gas inlet A1 through the air guide pipe 17 arranged outside the tower; the tail gas outle...
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The invention relates to an exhaust cleaning tower and an asphalt smoke tail gas incineration system and process. The exhaust cleaning tower comprises a tower body, a cleaning section, a mist catching section and a tail gas emission section, wherein the cleaning section, the mist catching section and the tail gas emission section are sequentially arranged in the tower body from bottom to top; the mist catching section is composed of mist catching filler, a gas production pipe, an upper partition plate and a lower partition plate. According to the exhaust gas cleaning tower, the partition plates are additionally arranged above and below the mist catching filler in the exhaust gas cleaning tower respectively to form independent mist catching sections, and besides the mist catching function, the exhaust gas cleaning tower also has the gas-liquid separation function, so that liquid drops in exhaust gas are separated out, and long-time normal operation of the exhaust gas induced draft fan is guaranteed.
Description
technical field [0001] The invention relates to the technical field of exhaust gas cleaning of tar distillation devices in the coking industry, in particular to an exhaust gas cleaning tower, an asphalt fume exhaust gas incineration system and a process. Background technique [0002] At present, there are the following three methods for the treatment of asphalt fume tail gas in the coking industry: [0003] The first is the absorption method, which is also commonly used in coking plants at present. The flue gas header for collecting asphalt fume is first connected to the jet mixer, and the asphalt fume is removed by the negative pressure generated by the circulating oil passing through the nozzle of the jet mixer at a high speed. The gas is sucked into the jet mixer and is strongly mixed with the washing oil, so that most harmful substances are absorbed to achieve the purpose of washing; the gas-liquid mixture from the jet mixer enters the washing tank for gas-liquid separat...
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Patent Timeline
Login to View More IPC IPC(8): B01D53/26B01D53/18F23G7/06
CPCB01D53/26B01D53/185F23G7/06
Inventor 杨雪松
Owner ACRE COKING & REFRACTORY ENG CONSULTING CORP DALIAN MCC