Biogas biological desulfurization device and desulfurization method

Abstract

A biogas biological desulfurization device comprises a desulfurization tower main body, a first reaction cavity and a second reaction cavity are formed in the desulfurization tower main body, the first reaction cavity and the second reaction cavity are separated through a partition plate, a gap is reserved between the bottom of the partition plate and the desulfurization tower main body, a first gas inlet pipe and a first gas flow uniform distribution plate are arranged at the lower part of the first reaction cavity, a one-way valve is arranged on the first gas inlet pipe, a first temperaturesensor, a first biological filler device and a first anti-sticking wall device are arranged at the upper part of the first gas flow uniform distribution plate, the first biological filler device is fixedly connected with a first motor at the top of the first reaction cavity, a spraying device is arranged at the upper part of the first reaction cavity, and the spraying device is connected with a water pump in the second reaction cavity through a heat exchange pipeline.According to the invention, the generated elemental sulfur can be effectively prevented from adhering to the wall of the desulfurization tower, and the elemental sulfur can be effectively prevented from being adhered to the filler device, so that the reaction efficiency of the filler is prevented from being influenced.

Description

technical field [0001] The invention relates to a desulfurization device, in particular to a biogas desulfurization device and a desulfurization method. Background technique [0002] There are several packing layers vertically arranged inside the existing biological desulfurization tower. The packing layer desulfurizes and purifies the biogas passing through the desulfurization tower. During the purification process, impurities such as elemental sulfur are formed in the packing layer. After long-term use, the packing layer is easy to be blocked. , thereby reducing the desulfurization effect of the packing layer on biogas. However, in the existing desulfurization tower, biogas can only pass through, and the packing layers cannot be cleaned one by one. If flushing is required, all packing layers need to be taken out one by one. The operation is cumbersome and time-consuming, which reduces the cleaning efficiency and further reduces the efficiency of biogas purification. Or w...

AI Technical Summary

Problems solved by technology

[0002] There are several packing layers vertically arranged inside the existing biological desulfurization tower. The packing layer desulfurizes and purifies the biogas passing through the desulfurization tower. During the purification process, impurities such as elemental sulfur are formed in the packing layer. After long-term use, the packing layer is easy to be blocked. , thereby reducing the desulfurization effect of the packing layer on biogas

However, the existing desulfurization tower can only pass through biogas, and cannot clean the packing layer one by one.

If flushing is required, all packing layers need to be taken out one by one. The operation is cumbersome and takes a long time, which reduces the cleaning efficiency and thus the efficiency of biogas purification.

Or wash with water at the top of the desulfurization tower, the water pressure gradually decreases from top to bottom, and the washing effect of the packing layer at the bottom is limited;

[0003] For example, the Chinese patent announcement number is: CN201310420956.2 Biological desulfurization tower packing flushing device and flushing method. In the biological desulfurization tower packing flushing device, there are several packing layers arranged longitudinally inside the desulfurization tower, including water inlet pipes, sewage pipes and perforated aeration pans. , the water inlet pipe is located under the desulfurization tower, the sewage pipe is located at the bottom of the desulfurization tower, and a perforated aeration pan is arranged under each packing layer, and the perforated aeration pan is connected to the gas source, and the perforated aeration pan is densely covered with Aeration holes, so as to clean the packing layer one by one, but cannot fundamentally reduce the adhesion of elemental sulfur to the packing layer and tower wall, or affect the desulfurization efficiency

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