Biogas biological desulfurization device and desulfurization method

Abstract

A biogas desulfurization device, comprising a main body of a desulfurization tower, a first reaction chamber and a second reaction chamber are arranged inside the main body of the desulfurization tower, and the first reaction chamber and the second reaction chamber are separated by a partition, so that There is a gap between the bottom of the clapboard and the main body of the desulfurization tower, the lower part of the first reaction chamber is provided with a first air inlet pipe and a first air distribution plate, and the first air inlet pipe is provided with a one-way valve. A first temperature sensor, a first biological filler device and a first anti-sticking wall device are arranged on the upper part of the first air distribution plate, and the first biological filler device is fixedly connected to the first motor on the top of the first reaction chamber, The upper part of the first reaction chamber is provided with a spraying device, and the spraying device is connected to the water pump in the second reaction chamber through a heat exchange pipe. The present invention can effectively prevent the produced elemental sulfur from adhering to the tower wall of the desulfurization tower. And it can effectively prevent the elemental sulfur from adhering to the packing device, thereby avoiding affecting the reaction efficiency of the packing.

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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