CN221663270U

CN221663270U - Waste paper pulp deinking device for producing gray paperboard

Info

Publication number: CN221663270U
Application number: CN202420447494.7U
Authority: CN
Inventors: 平根法
Original assignee: Guizhou Jinxinxin New Material Technology Co ltd
Current assignee: Guizhou Jinxinxin New Material Technology Co ltd
Priority date: 2024-03-08
Filing date: 2024-03-08
Publication date: 2024-09-06
Anticipated expiration: 2034-03-08

Abstract

The utility model discloses a waste paper pulp deinking device for producing gray paper boards, which comprises a horizontal silo, wherein a rotating shaft is transversely arranged in the center of the silo, a plurality of turbulent flow pulps are arranged on the rotating shaft, a driving device which is in transmission with the rotating shaft is arranged on the outer wall of the silo, and a foaming device is arranged at the bottom of the silo; the top of the silo is connected to the notch of the foaming disc through a converging part with a gradually shrinking opening; a storage box is connected to one side of the frothing disc, and a skimming mechanism is arranged above the frothing disc so as to skim the foam in the frothing disc into the storage box. The utility model adopts the horizontal silo, thus the waste paper pulp can continuously rotate up and down in the silo by driving the turbulent flow pulp through the rotating shaft, and the fiber in the pulp is always in a suspension and dispersion state in water, so that the foam generated by the bubble device can fully contact the fiber and quickly take away the printing ink or the dyeing pigment in the fiber, thereby improving the production efficiency.

Description

Waste paper pulp deinking device for producing gray paperboard

Technical Field

The utility model relates to the technical field of papermaking equipment, in particular to a waste paper pulp deinking device for producing gray paper boards.

Background

The gray paperboard is also called tea paperboard, is a multipurpose paperboard, and has the ration of generally more than 120g/m < 2 >. The thickness is higher, and the tightness is less. The quality requirements on raw materials are low, and waste paper, semi-bleached pulp and semi-chemical pulp can be used. Therefore, the recycled waste paper is often used as a raw material for pulping, and the waste paper contains ink, dyeing raw materials and the like after pulping and can be removed by a deinking device.

When the processing amount of the pulp is large, the pulp layer is thicker, the pulp is not in a dissolved state, but in a dispersed state of the fibers of the paper, so that the dispersed state of the fibers is difficult to keep for a long time only by the disturbance of bubbles, the fibers can be gradually deposited or collected towards the bottom layer, the bubbles can be difficult to penetrate through the fiber layer, the sufficient contact between the bubbles and the fibers is affected, and the deinking efficiency is reduced.

Disclosure of utility model

The utility model aims to solve the technical problem of providing a waste paper pulp deinking device for producing gray paper boards, so as to solve the technical problem in the background technology.

In order to solve the technical problems, the technical scheme of the utility model is as follows:

The waste paper pulp deinking device for producing the gray paperboard comprises a horizontal silo, wherein a rotating shaft is transversely arranged in the center of the silo, a plurality of turbulent flow pulps are arranged on the rotating shaft, driving equipment which is in transmission with the rotating shaft is arranged on the outer wall of the silo, and a foaming device is arranged at the bottom of the silo; the top of the silo is connected to the notch of the foaming disc through a converging part with a gradually shrinking opening; a storage box is connected to one side of the frothing disc, and a skimming mechanism is arranged above the frothing disc so as to skim the foam in the frothing disc into the storage box.

Further, the turbulence slurry is comb-shaped, and 3-4 turbulence slurries are arranged at equal angles.

Further, the foaming device comprises a compression air supply device and a gas distribution cover fixed on the bottom wall of the silo, wherein the bottom wall of the silo is located in a region covered by the gas distribution cover and uniformly penetrates through the gas distribution cover to form a plurality of air holes, an air inlet pipe is connected to the gas distribution cover, and the air inlet pipe is connected to the compression air supply device through a pipeline.

Further, the lateral wall of the gathering part is connected with a liquid inlet pipe and a dosing pipe, the lateral wall of the bottom of the silo is connected with a liquid discharge pipe, and the bottom of the lateral wall or the bottom of the lateral wall of the storage box is connected with a waste discharge pipe.

Further, a steady flow interception net is arranged at the top of the convergence part.

Further, the two ends of the steady flow interception net are provided with lap joint parts, and the steady flow interception net is fixed at two sides of the notch by utilizing the lap joint parts.

The utility model has the advantages that:

The utility model is optimized and improved on the structure of the traditional waste paper pulp deinking device, and the main improvement point is that the vertical box-type bin is changed into the horizontal cylinder bin, so that waste paper pulp can continuously rotate up and down in the cylinder bin by driving the turbulent pulp through the rotating shaft, the circularly rotated pulp can avoid the fiber in the pulp to be deposited together, the fiber in the pulp is always in a suspension and dispersion state in water, and foam generated by the bubble device can fully contact the fiber and rapidly take away printing ink or dyeing pigment in the fiber, thereby improving the production efficiency.

Drawings

FIG. 1 is a schematic perspective view of the first embodiment of the present utility model;

FIG. 2 is a schematic diagram of a second embodiment of the present utility model;

FIG. 3 is a schematic diagram of the internal structure of the present utility model.

In the figure, 1-silo, 11-air holes, 12-liquid inlet pipe, 13-liquid discharge pipe, 14-dosing pipe, 2-driving device, 21-rotating shaft, 22-turbulent flow pulp, 3-gas distributing cover, 31-air inlet pipe, 4-converging part, 5-foaming plate, 6-steady flow interception net, 61-overlap joint part, 7-skimming mechanism, 71-synchronous belt mechanism, 72-scraping plate, 8-storage box and 81-waste discharge pipe.

Detailed Description

The following describes the embodiments of the present utility model further with reference to the drawings. The description of these embodiments is provided to assist understanding of the present utility model, but is not intended to limit the present utility model. In addition, the technical features of the embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

As shown in the figure:

The waste paper pulp deinking device for producing the gray paperboard comprises a horizontal silo 1, wherein a rotating shaft 21 is transversely arranged in the center of the silo 1, a plurality of turbulent flow pulps 22 are arranged on the rotating shaft 21, a driving device 2 which is in transmission with the rotating shaft 21 is arranged on the outer wall of the silo 1, and a foaming device is arranged at the bottom of the silo 1; connected to the notch of the frothing disc 5 at the top of the silo 1 through a converging portion 4 that tapers; a storage tank 8 is connected to one side of the frothing disc 5, and a skimming mechanism 7 is mounted above the frothing disc 5 to skim the froth in the frothing disc 5 into the storage tank 8.

The utility model is optimized and improved on the structure of the traditional waste paper pulp deinking device, and the main improvement point is that a vertical box type bin is changed into a horizontal type silo 1, so that waste paper pulp can continuously rotate up and down in the silo 1 by driving a turbulent flow pulp 22 through a rotating shaft 21, a converging part 4 with gradually shrinking openings can reduce turbulent flow formed in a foaming disc 5, disturbance can be carried out in the silo 1 as much as possible, bubbles can be kept stable in the foaming disc 5, and skimming by a skimming mechanism is facilitated (the synchronous belt mechanism 71 which is arranged in parallel is provided in the utility model drives a scraping plate 72 to skim bubbles, and other types of mechanisms in the prior art can be used).

The fiber in the paper pulp can be prevented from being deposited together by the circularly rotating paper pulp, so that the fiber in the paper pulp is always in a suspension and dispersion state in water, foam generated by the bubble device can be fully contacted with the fiber, and ink or dyeing pigment in the foam can be quickly taken away, thereby improving the production efficiency.

The turbulence slurry 22 does not need to have a too fast rotating speed, the recommended rotating speed is 10-20r/min, the turbulence slurry 22 is in a comb-tooth shape and is optimal, the running resistance is reduced, the fiber dispersion in the paper pulp is facilitated, and 3-4 turbulence slurries are arranged at equal angles.

The foaming device adopts a conventional structure and comprises a compressed air supply device (not shown in the prior art) and a gas distribution cover 3 fixed on the bottom wall of the silo 1, wherein a plurality of air holes 11 are uniformly formed in the region covered by the gas distribution cover 3 on the bottom wall of the silo 1, an air inlet pipe 31 is connected to the gas distribution cover 3, and the air inlet pipe 31 is connected to the compressed air supply device through a pipeline.

For the convenience of filling pulp, the side wall of the converging part 4 is connected with a liquid inlet pipe 12 and a dosing pipe 14 (for adding an activating agent to promote the separation of ink or dyeing pigment), the bottom side wall of the silo 1 is connected with a liquid discharge pipe 13, and the bottom of the bottom wall or the side wall of the storage box 8 is connected with a waste discharge pipe 81.

As an optimized scheme, the steady flow interception net 6 is installed at the top of the converging part 4, and the steady flow interception net 6 can prevent fibers in paper pulp from passing through, so that partial fibers are prevented from being taken away when bubbles go upwards, meanwhile, the effect of pressing bottom turbulence can be achieved, the liquid state in the foaming disc 5 is kept stable, the lap joint parts 61 can be arranged at the two ends of the steady flow interception net 6, the steady flow interception net 6 is fixed at the two sides of the notch by utilizing the lap joint parts 61, and therefore, the steady flow interception net 6 can be conveniently and rapidly disassembled.

The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the utility model, and yet fall within the scope of the utility model.

Claims

1. A waste paper pulp deinking device for grey board production, characterized in that it comprises a horizontal cylindrical silo, a rotating shaft is transversely installed at the center of the cylindrical silo, a plurality of turbulent pulps are installed on the rotating shaft, a driving device that is driven by the rotating shaft is installed on the outer wall of the cylindrical silo, a foaming device is installed at the bottom of the cylindrical silo; the top of the cylindrical silo is connected to the notch of the foaming disk through a gradually shrinking converging part; a storage box is connected to one side of the foaming disk, and a skimming mechanism is installed above the foaming disk to skim the foam in the foaming disk into the storage box.

2. The waste paper pulp deinking device for grey board production according to claim 1 is characterized in that the turbulent pulp is in the shape of comb teeth, and 3-4 of them are arranged at equal angles.

3. The waste paper pulp deinking device for grey board production according to claim 1 is characterized in that: the foaming device includes a compressed air supply device and an air separation hood fixed to the bottom wall of the cylindrical silo, the bottom wall of the cylindrical silo is located in the area covered by the air separation hood and a plurality of air holes are evenly penetrated, the air separation hood is connected to an air intake pipe, and the air intake pipe is connected to the compressed air supply device through a pipeline.

4. The waste paper pulp deinking device for grey board production according to claim 3 is characterized in that: the side wall of the converging part is connected to the liquid inlet pipe and the dosing pipe, the bottom side wall of the cylindrical silo is connected to the liquid discharge pipe, and the bottom wall or the bottom of the side wall of the storage box is connected to the waste discharge pipe.

5. The waste paper pulp deinking device for grey board production according to claim 1, characterized in that a flow stabilizing interception net is installed on the top of the converging part.

6. The waste paper pulp deinking device for grey board production according to claim 5 is characterized in that overlapping parts are arranged at both ends of the flow stabilizing interception net, and the flow stabilizing interception net is fixed by buckling the overlapping parts on both sides of the notch.