Tail gas buffer and absorption device
An absorption device and tail gas technology, applied in the direction of dispersed particle separation, chemical instruments and methods, separation methods, etc., can solve the problems of emission, tail gas too late to deal with, pollute the environment, etc., and achieve the effect of efficient absorption
Inactive Publication Date: 2014-05-07
RUGAO SIYOU SYNTHETIC CHEM
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Problems solved by technology
During the production process of nitromethane, the amount of tail gas generated is extremely unstable. When the device runs for about 15 minutes, the amount of tail gas generated reaches the peak value, but the processing capacity of the entire tail gas treatment tower is only the average amount of tail gas in the entire tail gas generation process. For this reason, the exhaust gas generated by the whole device that exceeds the average value in about 15 minutes will not be processed in time, and will be directly discharged into the atmosphere, polluting the environment
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[0011] figure 1 The exhaust gas buffering and absorbing device shown in the figure includes an induced draft fan 1, a buffer tank 2, a primary treatment tower 3 and a secondary processing tower 4 in sequence along the tail gas treatment direction, in order to ensure the uniform supply of the exhaust gas temporarily stored in the buffer tank 2 In the treatment tower, the diameter of the inlet 5 of the buffer tank is larger than the diameter of the outlet 6 to ensure that the tail gas is supplied to the treatment tower at a uniform speed for absorption.
[0012] Such as figure 2 As shown, the buffer tank 2 is composed of a topless fixed tank 7 and a bottomless movable tank 8. The outer diameter of the movable tank 8 is slightly smaller than the inner diameter of the fixed tank 7 and is placed on the fixed tank 7. The fixed tank 7 is filled with water. Thereby realize the water seal of fixed tank 7 and movable tank 8, its side is provided with air inlet 5, and movable tank 8 si...
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The invention discloses a tail gas buffer and absorption device, which comprises a first-stage treatment tower, a second-stage treatment tower and an induced draught fan, wherein the induced draught fan, the first-stage treatment tower and the second-stage treatment tower are connected through a connecting pipe in sequence. The tail gas buffer and absorption device is characterized in that: a buffer tank is connected in series between the induced draught fan and the first-stage treatment tower and consists of a topless fixed tank and a bottomless movable tank; the fixed tank is filled with water; a gas inlet is formed on a side face of the fixed tank; a gas outlet is formed on the side face of the movable tank; the caliber size of the gas inlet is greater than that of the gas outlet; a plurality of portal supporting frames are arranged on the circumference of the fixed tank and consist of horizontal suspension beams and supporting frames which are arranged at the two ends of the horizontal suspension beams and are fixedly connected with the fixed tank; a pulley is arranged below the end parts of the horizontal suspension beams; and the top of the movable tank is connected with a balance block through a rope which passes by the pulley. Tail gas enters the treatment tower through the buffer tank during treatment; and since the caliber size of the gas inlet of the buffer tank is greater than that of the gas outlet, the tail gas is slowly provided to the treatment tower to be absorbed at a uniform speed, and high-efficiency absorption of the tail gas is guaranteed.
Description
technical field [0001] The invention relates to a tail gas buffering and absorbing device, in particular to a tail gas buffering and absorbing device capable of treating tail gas at a uniform speed. Background technique [0002] In chemical production, the generation of tail gas is inevitable. The tail gas produced is not allowed to be directly discharged into the atmosphere because it will pollute the environment. The tail gas is often passed into the treatment tower, and the harmful gas in the tail gas is treated by using a comprehensive agent. The treated exhaust gas is then discharged into the atmosphere. During the production process of nitromethane, the amount of tail gas generated is extremely unstable. When the device runs for about 15 minutes, the amount of tail gas generated reaches the peak value, but the processing capacity of the entire tail gas treatment tower is only the average amount of tail gas in the entire tail gas generation process. For this reason, ...
Claims
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IPC IPC(8): B01D53/18
Inventor 刘富义纪建全许映国徐平平世驹
Owner RUGAO SIYOU SYNTHETIC CHEM