New process for closed absorbing, cooling, desulfurizing and purifying high-temperature waste gas

Abstract

The invention relates to a new process for closed absorbing, cooling, desulfurizing and purifying high-temperature waste gas, which solves the management problem of environmental pollution caused by high-temperature gas discharged after the various furnace combustion operations. The invention is characterized by adopting tail part closed absorption; a corrosion-resisting and high temperature axial flow induced draft fan, a cooling, desulfurizing and purifying device and a recycling device are connected with the elbow bending part of an absorbing pipe, and the discharged high-temperature waste gas is forced to be sent to the cooling, desulfurizing and purifying device for closed purifying treatment. Thus, the whole production process is a closed cycle process with pollution-free production and self purification, ad the purpose for improving environment is achieved. The invention has the advantages of low implementation cost, lower operating cost, quite obvious effect and environment protection, prevents high-temperature heat sources and harmful gas from polluting the environment, and is applicable to the fundamental treatment of high-temperature heat sources and harmful gas discharged by various combustion operations.

Description

Technical field: [0001] The invention belongs to the technical field of environmental pollution prevention and control, and utilization of waste gas from combustion kilns. Specifically, it relates to a new technology for high-temperature waste gas closed absorption, cooling, desulfurization and purification. It is suitable for cooling, desulfurization and purification of high-temperature waste gas discharged after various combustion processes. Background technique: [0002] As far as the inventor knows, the high-temperature heat source and dustfall, total suspended particles, and sulfur dioxide SO discharged after various combustion work are also very large. It is particularly worth pointing out that secondary pollution and acid rain problems are more and more paid attention to by people. The Nairobi Declaration issued by the United Nations Environment Program (UNEP) pointed out that "air pollution such as acid rain is becoming a more serious threat to the human environment...

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Problems solved by technology

But it is undeniable that after burning and working, the high-temperature heat source and harmful gas emitted can be minimized by using modern purification technology. In the exhaust gas, there will still be a certain amount of harmful substances remaining, and they will be discharged by high chimneys and diluted by diffusion. Although the emission method and the concentration of air pollution can be changed, the emission of harmful substances cannot be reduced. What's more, the elimination of equipment The resurgence, the idleness of treatment equipment, the rebound of pollution, and the diffuse emission from the filling port of the leaky kiln shaft furnace have not involved treatment. These high-temperature heat sources and harmful gases that continue to be discharged have not been completely cured, causing global climate change and iceberg melting. Threatening the earth's organisms and human beings, there are still problems such as incomplete solutions, few methods, high equipment costs, and higher operating costs.

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