Device and method for extracting and separating lignin in papermaking black liquor
A technology for papermaking black liquor and lignin, which is applied in the regeneration of lye and other directions, can solve the problems of large amount of acid-extracted foam, less extraction amount, slow lignin extraction speed, etc. Extract the effect of the separation effect
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[0034] The present invention will be further described below in conjunction with drawings and embodiments.
[0035] Such as figure 1 As shown, the device for extracting and separating lignin from papermaking black liquor of the present invention mainly includes an acid analysis flocculation zone 8 , a blocking bucket 5 and a separation zone 10 .
[0036]The acid analysis flocculation zone 8 has a barrel-shaped main body and a conical bottom. Its upper part is open, and the bottom of the lower cone is provided with a separation liquid outlet. The separation liquid outlet is connected to the separation liquid conduit 9 leading the separation liquid out of the device.
[0037] The opening of the blocking bucket 5 is downward, and the upper opening end of the acid analysis flocculation zone 8 is tightly and flexibly connected with the lower opening end of the blocking bucket 5, so that water or black liquor will not flow out or seep out from the connection.
[0038] There are als...
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