Method and device for secondarily filtering doctor solution by side stream
A desulfurization liquid and sideline technology, applied in the field of synthetic ammonia desulfurization liquid purification, can solve problems such as affecting the normal production of enterprises, deteriorating the quality of poor liquid, affecting desulfurization efficiency, etc., to reduce the content of suspended sulfur and secondary salts, avoid environmental pollution, and improve desulfurization The effect of efficiency
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[0021] Example 1: (Method Example)
[0022] A method for fine filtration of desulfurization liquid by side line, the steps are as follows:
[0023] 1) Use a desulfurization pump to pump the desulfurization liquid from the lean liquid tank into the main desulfurization liquid pipeline;
[0024] 2) Open the valve on the desulfurization liquid side pipeline branch connected to the desulfurization liquid main pipeline, and the desulfurization liquid side pipeline diverts about 8% of the flow of the desulfurization liquid, which is sent to the filter for filtration;
[0025] 3) The filtered desulfurization liquid filtrate is sent back to the lean liquid tank through the filtrate pipeline;
[0026] 4) When the filtered desulfurization liquid filtrate sent back to the lean liquid tank is significantly reduced, the filter equipment needs to be regenerated. First, the desulfurization liquid in the filter is discharged back to the lean liquid tank through the liquid return pipe, and the air...
Example Embodiment
[0030] Example 2: (Method Example)
[0031] It is the same as Example 1, except that the desulfurization liquid with about 12% of the flow rate of the desulfurization liquid side pipeline in step 2 is sent to the filter for filtration.
Example Embodiment
[0032] Example 3: (Method Example)
[0033] It is the same as Example 1, except that in step 2, about 18% of the desulfurization liquid flow of the desulfurization liquid side line pipe is sent to the filter for filtration.
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