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Flotation deinking machine for removing ink in waste paper pulp by utilizing air flotation principle

A waste paper pulp and deinking machine technology, which is applied in fiber raw material treatment, recycling technology, papermaking, etc., can solve the problems of unable to meet the requirements of pulp quality, low efficiency of flotation deinking machine, low pulp whiteness, etc. Achieve the effect of high deinking efficiency, small footprint and high whiteness

Pending Publication Date: 2021-02-23
ZHENGZHOU LEIZHAN TECH PAPER MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The existing flotation deinking machines including the above technical solutions have low efficiency, high energy consumption, low whiteness and poor brightness of pulp after deinking, and cannot meet the requirements of the modern paper industry for pulp quality

Method used

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  • Flotation deinking machine for removing ink in waste paper pulp by utilizing air flotation principle
  • Flotation deinking machine for removing ink in waste paper pulp by utilizing air flotation principle
  • Flotation deinking machine for removing ink in waste paper pulp by utilizing air flotation principle

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Embodiment Construction

[0050] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0051] Such as Figure 1 to Figure 17 As shown, this embodiment discloses a flotation deinking machine that uses the principle of air flotation to remove ink from waste paper pulp, including a closed flotation cell body 5, and the flotation cell body 5 includes an outer cylinder body 51 and an outer cylinder body 51 is provided with an inner cylinder 52 at the center, and an upper cover 50 is provided on the top of the outer cylinder 51 for sealing. An ink discharge device 53 is arranged inside the inner cylindrical body 52 . A plurality of good pulp cone grooves 54 are arranged at intervals along the axial direction on the outside of the inner cylinder 52, and a guide ring 55 is arranged between the outer circumference of each good pulp cone groove 54 and the outer cylinder body 51, and the guide ring 55 will float The tank b...

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Abstract

The invention discloses a flotation deinking machine for removing ink in waste paper pulp by utilizing an air flotation principle, wherein the flotation deinking machine comprises a closed flotation tank body, the flotation tank body comprises an outer cylinder body and an inner cylinder body, an ink discharging device is arranged in the inner cylinder body, and a plurality of accepted pulp conical grooves are arranged outside the inner cylinder body in the axial direction at intervals; a flow guide ring is arranged between the periphery of each accepted pulp conical groove and the outer cylinder body, the flotation tank body is divided into multiple stages of flotation units which are arranged up and down by the flow guide rings, pulp inlet jet distributors are arranged at the positions,corresponding to the flotation units, of the outer wall of the outer cylinder body, and spiral ascending ladder type pulp inlet flow channels are formed in the flow guide rings; a cone-like reinforcing device is arranged in each accepted pulp conical groove; each pulp inlet jet flow distributor is of a three-body structure formed by sequentially connecting a pulp inlet conical pipe, a distributionpipe and a pulp outlet conical pipe. The flotation deinking machine has the remarkable advantages of high deinking efficiency, high whiteness of deinked pulp, good brightness, high concentration of discharged ink, little fiber loss, small occupied area and the like, and meets the requirements of the modern paper making industry on the quality of paper pulp.

Description

technical field [0001] The invention relates to the technical field of papermaking equipment, in particular to a flotation deinking machine for removing ink from waste paper pulp by using the principle of air flotation. Background technique [0002] The flotation deinking machine is designed based on the flotation process and is used for the deinking of pulp. The slurry enters the jet distributor under a certain slurry feeding pressure, and the air brought in in the jet distributor is dispersed into flotation bubbles of optimal diameter and fully mixed with the slurry, and enters the flotation deinking in the form of tangential flow. The flotation unit of the machine, the ink adsorbed on the bubbles floats to the liquid surface with the bubbles, and enters the ink storage tank under a certain pressure, these bubbles can also carry out pressure concentration on the ink particles stored in the ink storage tank, and in the Under the action of this pressure, it is discharged ou...

Claims

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Application Information

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IPC IPC(8): D21B1/32
CPCD21B1/327Y02W30/64
Inventor 刘建坡刘建涛
Owner ZHENGZHOU LEIZHAN TECH PAPER MACHINERY
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