Exhaust gas recovering and cleaning system and cleaning technology method
A technology of tail gas recovery and purification system, applied in chemical instruments and methods, separation methods, gas treatment, etc., can solve problems such as environmental pollution, equipment corrosion, harm to human health, etc., to improve the operating environment and achieve the effect of recovery
Pending Publication Date: 2018-09-14
SHANXI HEIMAO JIAOHUA CO LTD
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Problems solved by technology
[0002] During the coke oven gas purification process, the gas evaporated from each tower and storage tank is discharged into the atmosphere through the set respirator. These tail gases contain toxic and harmful gas hydrogen sulfide (H 2 S), ammonia (NH 3 ), if it is not purified, it will not only cause equipment corrosion, but also cause environmental pollution and even endanger human health
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[0033] combine figure 1 and figure 2 As shown, a tail gas recovery and purification system of the present invention includes a gas purification process tower 1 , a condensate water seal tank 2 and a tail gas recovery and purification tower 4 .
[0034] The top of the tail gas recovery and purification tower is provided with a qualified tail gas outlet e, and the side wall of the main body is sequentially provided with the first spray liquid inlet g, the second spray liquid inlet h, the tail gas inlet i, the steam purge port j, and the steam outlet. Ammonia wastewater inlet b, spray liquid outlet l and spray liquid discharge outlet m. The tail gas recovery and purification tower is provided with an upper spray pipe 4-6 and a lower spray pipe 4-5 at positions corresponding to the first spray liquid inlet g and the second spray liquid inlet h respectively. The upper spray pipe 4-6 is connected with the first spray liquid inlet g, and the lower spray pipe 4-5 is connected with ...
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The invention discloses an exhaust gas recovering and cleaning system and a cleaning technology. The system is characterized in that an outlet for exhaust gas meeting the standard is formed in the topof an exhaust gas recovering and cleaning tower, wherein an upper spraying pipe and a lower spraying pipe are arranged on the exhaust gas recovering and cleaning tower; a plurality of sieving platesare arranged between the upper spraying pipe and the lower spraying pipe and between a lower spraying pipe and an exhaust gas inlet; a gas cleaning process tower device is communicated with the exhaust gas inlet through a first pipeline; a steam sweeping opening is communicated with a steam pipeline through a second pipeline; the first pipeline and the second pipeline are communicated with a condensing liquid water sealing groove; a first spraying liquid inlet and a second spraying liquid inlet are communicated with spraying liquid inlet pipelines; an ammonia distillation wastewater inlet is communicated with an ammonia distillation wastewater pipeline; a spraying liquid draining pipeline is communicated with a spraying liquid outlet; a complete draining pipeline is communicated with a complete spraying liquid draining opening. According to the systems, exhaust gas of grooves, tanks and other tower devices in a coke oven gas cleaning process can be recovered and cleaned, so that the exhaust gas can meet the standard while being exhausted.
Description
technical field [0001] The invention belongs to the technical field of coke oven gas purification, and in particular relates to a tail gas recovery and purification system and a purification process method. Background technique [0002] During the coke oven gas purification process, the gas evaporated from each tower and storage tank is discharged into the atmosphere through the set respirator. These tail gases contain toxic and harmful gas hydrogen sulfide (H 2 S), ammonia (NH 3 ), if it is not purified, it will not only cause equipment corrosion, but also cause environmental pollution and even endanger human health. Therefore, the gas must be purified before discharge. Contents of the invention [0003] The purpose of the present invention is to provide a tail gas recovery and purification system and purification process, which can recover and purify the tail gas discharged from various tanks, tanks and other towers in the coke oven gas purification process, so as to r...
Claims
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IPC IPC(8): B01D53/78B01D53/52
CPCB01D53/1493B01D53/52B01D53/78B01D2252/103B01D2258/02B01D2257/406
Inventor 张中帅吕小光高少鹏
Owner SHANXI HEIMAO JIAOHUA CO LTD