Anti corrosion of biogas desulfurizer is very important. What are the requirements for anti-corrosion of desulfurizer? The following Xiaobian will give you a specific introduction.

1、设备内壁喷涂表面应平齐，焊缝表面应平整，不得有焊渣，焊瘤和毛刺，法兰接管内缘等转角处修磨成圆角半径不小于5mm的圆滑过渡。内件修磨成圆角半径不小于2mm的圆滑过渡(碳钢部分)。

1. The spraying surface of the inner wall of the equipment shall be flush, and the weld surface shall be flat without welding slag, overlap and burr. The inner edge of flange nozzle and other corners shall be polished into a smooth transition with a fillet radius of not less than 5mm. The inner parts shall be polished into smooth transition (carbon steel part) with fillet radius not less than 2mm.

2、设备喷铝表面需按下列步骤和要求进行表面处理：

2. The aluminum sprayed surface of the equipment shall be subject to surface treatment according to the following steps and requirements:

(1)净化处理：喷铝表面需经严格地清除油脂和污垢。

(1) Purification treatment: the aluminum spraying surface needs to be strictly cleaned of grease and dirt.

(2)粗化处理：净化处理后的表面需进行喷砂处理，喷砂后表面清洁度应符合GB8923-88中Sa3级规定，不允许存在氧化皮，锈污垢和旧涂层等附着物。

(2) Roughening treatment: the cleaned surface shall be subject to sandblasting treatment. The surface cleanliness after sandblasting shall meet the requirements of grade SA3 in gb8923-88. No oxide scale, rust dirt, old coating and other attachments are allowed.

(3)表面处理合格后，等待喷铝的停留时间应尽量缩短，并严格保护喷砂表面，防止受潮，灰尘和油污等污染。

(3) After the surface treatment is qualified, the waiting time for aluminum spraying shall be shortened as far as possible, and the sandblasted surface shall be strictly protected from moisture, dust, oil and other pollution.

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The above is a detailed introduction about biogas desulfurization. I hope it can help you. If you have any questions, please contact us. We will provide you with services in a professional manner