A treatment equipment for sludge drying tail gas

Abstract

The invention relates to the field of sludge drying, and discloses a treatment equipment for sludge drying tail gas, which solves the problem that the treatment efficiency of the drying tail gas is not high, the tail gas after treatment still contains harmful gases, and causes pollution after discharge. The main point of the technical solution is to include several exhaust gas absorption boxes, the top of the exhaust gas absorption box is provided with a liquid inlet pipe and an air outlet pipe, the bottom of the exhaust gas absorption box is provided with a liquid outlet pipe and an air inlet pipe, and two adjacent exhaust gas The absorption box is communicated through the corresponding connection of the intake pipe and the outlet pipe. The interior of the exhaust gas absorption box is provided with an air blocking mechanism directly above the air intake pipe. The air blocking mechanism includes a number of A gas baffle group, the gas baffle group includes correspondingly arranged dispersing baffles and concentrated baffles, which can improve the efficiency of tail gas treatment and absorption, and reduce the pollution of tail gas emissions.

Description

technical field [0001] The invention relates to the field of sludge drying, and more particularly, to a processing device for sludge drying tail gas. Background technique [0002] With the continuous acceleration of urbanization and the development of modern industry. Every year, a huge amount of various types of urban domestic sludge and industrial sludge are produced around the world. To this end, people began to seek a suitable process to effectively treat the above sludge. Sludge drying technology is a common technology that can effectively reduce the moisture content of sludge so that it can continue to be processed. Specifically, it is the process of heating sludge in specially designed equipment to evaporate the water in it. It can not only effectively achieve the removal effect of "free water" in the sludge, but also can quickly evaporate the "interstitial water", "surface bound water" and even "internal bound water". [0003] However, in the process of sludge dry...

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Problems solved by technology

[0003] However, in the process of sludge drying, dry tail gas will be produced. The dry tail gas also contains a variety of toxic gases or some economically valuable recyclable substances. In some dry tail gas treatment production, the tail gas is directly passed through Enter the absorption pool, react and absorb the toxic substances, and discharge the treated tail gas. However, in this process, the absorption efficiency of the tail gas is often ignored, and it is considered that the toxic substances have been absorbed and the job is done. Usually, the toxic substances and the absorption The reaction of the liquid needs a certain amount of time. If the absorption rate is slow, the treated tail gas will still contain toxic gases, which will be discharged into the atmosphere and cause pollution. Pollution, contrary to the original intention of environmental protection

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