Ultra microporous aeration deinking device

Abstract

The invention relates to a super-microporous aerating and deinking apparatus. The super-microporous aerating and deinking apparatus comprises a first deinking duct, a pulp inlet pipe arranged on the first deinking duct, a first overflow plate, a pulp drainage hole formed behind the first overflow plate, an ink groove formed at the upper part of the first deinking duct, at least one ink baffle plate arranged at one side or two sides of the ink groove, an aerating cavity arranged at the bottom of the first deinking duct, and a super-microporous one-way vent plate arranged on the upper end surface of the aerating cavity, wherein the aerating cavity is communicated with an air blower. According to the super-microporous aerating and deinking apparatus, the super-microporous one-way vent plate is matched with the air blower to generate a large quantity of micro-diameter bubbles for removing ink in paper pulp, and besides, the bubbles are distributed uniformly and the entire deinking effect of the paper pulp can be ensured; only part of pulp is required to be circulated twice in the whole deinking process, the energy consumption is reduced and the power consumption is only one seventh of that of the traditional process. The super-microporous aerating and deinking apparatus has a good deinking effect, pulp loss is low, the operation is convenient and the super-microporous aerating and deinking apparatus can be switched on and off freely.

Description

Technical field [0001] The invention relates to a deinking device in paper production, in particular to an ultra-microporous aeration deinking device. Background technique [0002] Existing deinking uses the Venturi principle to generate air bubbles, so that the slurry is deinked under the action of the air bubbles. Due to the high stirring speed and the difficult control of the bubble diameter, the tail slurry needs to be repeatedly circulated. It usually takes five to seven cycles to complete the deinking process, resulting in excessive power consumption, poor effect, large slurry loss, and poor control of operation. Summary of the invention [0003] The technical problem to be solved by the present invention is to provide an ultra-microporous aeration and deinking device, which can complete the deinking process with fewer cycles, and has uniform bubble distribution and good deinking effect. [0004] In order to solve the above technical problems, the technical solution adopted b...

AI Technical Summary

Problems solved by technology

[0002] Existing deinking uses mechanically generated air bubbles using the Venturi principle, so that the slurry can be deinked under the action of the air bubbles. Due to the high agitation speed and poor control of the diameter of the air bubbles, the tail end slurry needs to be circulated repeatedly. It usually takes five to seven cycles to complete the deinking process, resulting in disadvantages such as excessive power consumption, poor effect, large slurry loss, and poor operation control.

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