阅读说明：本技术 一种纸辊回抄设备及回抄方法 (Paper roll copy-back equipment and copy-back method ) 是由 刘大仓 宋佃凤 胡新 巩兆汝 樊雷雷 于 2020-04-07 设计创作，主要内容包括：本发明提供了一种纸辊回抄设备及回抄方法,该技术方案针对常规回抄工艺效率低下、存在安全隐患等问题,设计了全新的回抄方法及其配套设备。具体来看,本发明在机上在卷纸辊的侧方增设搁置架,当机上在卷纸辊需要进行回抄时,可直接转移至搁置架上,作为待回抄纸辊；而后,将纸页的末端手动延伸至干损池中,并开启白水管；流动的白水对纸页形成向下的输送力,使纸页下端陆续到达水力碎浆机中,而纸页的输送运动会持续牵拉待回抄纸辊转动,从而不断释放卷绕在其上的纸页；对于到达水力碎浆机中的纸页、白水混合物,经碎浆处理,从而完成回抄过程。与常规工艺相比,本发明工作量较小、效率较高,且无需劈开纸辊,具有突出的技术优势。(The invention provides paper roll copy-back equipment and a copy-back method, and the technical scheme designs a brand-new copy-back method and matched equipment thereof aiming at the problems of low efficiency, potential safety hazard and the like of the conventional copy-back process. Specifically, the placing frame is additionally arranged on the side of the paper winding roller on the machine, and when the paper winding roller needs to copy paper back when the machine is in use, the paper winding roller can be directly transferred to the placing frame to be used as the paper roller to be copied; then, manually extending the tail end of the paper sheet into a dry damage pool, and opening a white water pipe; the flowing white water forms downward conveying force on the paper sheets, so that the lower ends of the paper sheets sequentially reach the hydrapulper, and the conveying motion of the paper sheets can continuously pull the paper rolls to be rewound to rotate, thereby continuously releasing the paper sheets wound on the paper rolls; the mixture of paper and white water reaching the hydrapulper is pulped, so that the back-beating process is completed. Compared with the conventional process, the invention has the advantages of less workload, higher efficiency, no need of splitting rollers and outstanding technical advantages.)

1. The paper roll re-making equipment is characterized by comprising a placement frame (3), a white water pipe (5), a dry loss pool (6) and a hydraulic pulper (7), wherein the placement frame (3) is positioned above the dry loss pool (6), the white water pipe (5) is arranged in the dry loss pool (6), and the lower end of the dry loss pool (6) is connected with the hydraulic pulper (7).

2. The paper-roll copying apparatus according to claim 1, characterized by further comprising a paper roll (2) to be copied, the paper roll (2) to be copied being located on the rest stand (3).

3. A paper roll copying apparatus according to claim 2, characterized in that it further comprises a paper sheet (4), one end of the paper sheet (4) is connected to the paper roll (2) to be copied, the other end of the paper sheet (4) extends into the dry-damage tank (6), and the white water pipe (5) is located above the paper sheet (4).

4. The paper-roll copy-back apparatus according to claim 3, characterized in that it further comprises an on-board winding roll (1), said on-board winding roll (1) being located on the side of the rest (3).

5. The method of making a paper roll copy back using the paper roll copy back apparatus of claim 4, comprising the steps of:

1) moving the paper winding roller (1) on the machine to a rest rack (3) to be used as a paper roller (2) to be copied;

2) extending the tail end of a paper sheet (4) wound on the paper-making roller (2) to be rewound into a dry loss pool (6), and opening a white water pipe (5);

3) the flowing white water carries paper sheets (4) downwards to enter a hydrapulper (7); the paper sheet (4) moving downward rotates the paper roll (2) to be rewound, thereby releasing the paper sheet (4) wound thereon.

6. The method according to claim 5, further comprising the step 4 of: in the hydrapulper (7), the paper sheet (4) mixed with the white water is subjected to a pulping process.

Technical Field

The invention relates to the technical field of paper making by paper pulp, in particular to paper roller copy-back equipment and a copy-back method.

Background

Papermaking, which is a technological process for making paper from paper pulp. In the modern paper industry, paper pulp suitable for paper quality is continuously produced on a paper machine by diluting the pulp with water to a certain concentration, preliminarily dewatering the pulp in a wire section of the paper machine to form a wet paper sheet, and then pressing, dewatering and drying the wet paper sheet to produce paper. In the process of making paper sheets, paper making enterprises often need to re-pulp and make paper for products with quality which does not meet technical requirements (for example, quality defects such as holes exist) or test products in process tests, and the process is called back-making.

Disclosure of Invention

The invention aims to provide paper roll copy-back equipment and a copy-back method aiming at the technical defects of the prior art, and aims to solve the technical problems that the conventional copy-back process of paper rolls has potential safety hazards, wastes manpower and is low in efficiency in the prior art.

The invention aims to solve another technical problem that mechanical equipment capable of conveniently and quickly returning the paper-making roll is lacked in the prior art.

In order to achieve the technical purpose, the invention adopts the following technical scheme:

a paper roll re-copying device comprises a placement frame, a white water pipe, a dry loss pool and a hydraulic pulper, wherein the placement frame is positioned above the dry loss pool, the white water pipe is arranged in the dry loss pool, and the lower end of the dry loss pool is connected with the hydraulic pulper.

Preferably, the paper machine also comprises a paper roll to be rewound, and the paper roll to be rewound is positioned on the rest rack.

Preferably, the paper-making machine further comprises a paper sheet, one end of the paper sheet is connected to the paper-making roller to be rewound, the other end of the paper sheet extends into the dry loss pool, and the white water pipe is located above the paper sheet.

Preferably, the paper winding machine further comprises an on-machine paper winding roller which is located on the side of the rest rack.

On the basis of the technical scheme, the invention further provides a paper-roll copy-back method by using the paper-roll copy-back equipment, which comprises the following steps:

1) moving the paper winding roller on the machine to a rest stand to be used as a paper roller to be copied;

2) extending the tail end of the paper wound on the paper roll to be rewound into the dry loss pool, and opening the white water pipe;

3) the flowing white water carries paper sheets downwards to enter a hydrapulper; the paper sheet moving downward rotates the paper sheet to be rewound, thereby releasing the paper sheet wound thereon.

Preferably, the method further comprises the following step 4): in the hydropulper, the paper sheet mixed with white water is subjected to a pulping process.

The operation process of the invention is as follows: 1. if the paper is copied back on the paper winding roller on the machine, after the paper winding roller is changed, the paper winding roller is transferred to a rest stand to be used as a paper copying roller; 2. slowly conveying the paper sheets to a dry loss pool, and under the action of white water conveyed by a white water pipe, slowly driving the paper making roller to be rewound to rotate by the paper sheets and gradually increasing the speed to a certain speed; 3. and the paper mixed white water reaches a hydrapulper, is treated by the hydrapulper to complete the back-copying operation, and then enters the subsequent process.

The invention provides paper roll copy-back equipment and a copy-back method, and the technical scheme designs a brand-new copy-back method and matched equipment thereof aiming at the problems of low efficiency, potential safety hazard and the like of the conventional copy-back process. Specifically, the placing frame is additionally arranged on the side of the paper winding roller on the machine, and when the paper winding roller needs to copy paper back when the machine is in use, the paper winding roller can be directly transferred to the placing frame to be used as the paper roller to be copied; then, manually extending the tail end of the paper wound on the paper roll to be rewound into a dry loss pool, and opening a white water pipe; the flowing white water forms downward conveying force on the paper sheets, so that the lower ends of the paper sheets sequentially reach the hydrapulper, and the conveying motion of the paper sheets can continuously pull the paper rolls to be rewound to rotate, thereby continuously releasing the paper sheets wound on the paper rolls; the mixture of paper and white water reaching the hydrapulper is pulped, so that the back-beating process is completed.

The technical advantages of the invention are focused on the following aspects: 1. the used equipment only has a travelling crane, so that the requirement on the skill of workers is reduced. 2. The work of manual work participation only needs to slowly arrange the paper into the dry loss pool, the workload is obviously reduced, and in the process of copying, workers can engage in other work, so that the working efficiency is improved. 3. The paper copying roller does not need to be split, and the working efficiency of the paper copying roller is improved.

Drawings

FIG. 1 is a schematic diagram of a conventional paper-returning process and its associated equipment for a paper roll in the prior art;

FIG. 2 is a construction diagram of the apparatus of the present invention;

in the figure:

1. on the machine, a paper winding roller 2, a paper roller 3 to be copied, a rest rack 4 and paper sheets

5. A white water pipe 6, a dry loss tank 7 and a hydrapulper.

Detailed Description

Hereinafter, specific embodiments of the present invention will be described in detail. Well-known structures or functions may not be described in detail in the following embodiments in order to avoid unnecessarily obscuring the details. Approximating language, as used herein in the following examples, may be applied to identify quantitative representations that could permissibly vary in number without resulting in a change in the basic function. Unless defined otherwise, technical and scientific terms used in the following examples have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

A paper roll re-making device is shown in figure 2 and comprises a placement frame 3, a white water pipe 5, a dry damage pool 6 and a hydrapulper 7, wherein the placement frame 3 is positioned above the dry damage pool 6, the white water pipe 5 is arranged in the dry damage pool 6, and the lower end of the dry damage pool 6 is connected with the hydrapulper 7. Meanwhile, the paper-copying machine further comprises a paper-copying roller 2 to be copied, and the paper-copying roller 2 to be copied is positioned on the rest rack 3. Still include paper 4, the one end of paper 4 is connected on waiting to return to copy paper roll 2, and the other end of paper 4 extends to in the dry loss pond 6, and white water pipe 5 is located the top of paper 4. The paper winding machine further comprises an on-machine paper winding roller 1, and the on-machine paper winding roller 1 is located on the side of the rest rack 3.

The method for paper-roll copy-back by applying the paper-roll copy-back equipment comprises the following steps:

1) moving the paper winding roller 1 on the machine to a rest stand 3 to be used as a paper roller 2 to be copied;

2) extending the tail end of the paper 4 wound on the paper roller 2 to be rewound into a dry loss pool 6, and opening a white water pipe 5;

3) the flowing white water carries the paper sheets 4 down into the hydrapulper 7; the paper sheet 4 moving downward rotates the paper sheet 2 to be rewound, thereby releasing the paper sheet 4 wound thereon;

4) in the hydrapulper 7, the paper sheet 4 mixed with the white water is subjected to a pulping process.

The operation process of the invention is as follows:

1. on-board paper winding roller 1, if necessary, carrying out copy back, and transferring the paper to a rest stand 3 as a paper winding roller 2 after changing the paper winding roller;

2. slowly arranging the paper 4 into the dry loss pool 6, and under the action of the white water conveyed by the white water pipe 5, slowly driving the paper roller 2 to be rewound to rotate by the paper 4 and gradually increasing the speed to a certain speed;

3. the mixed white water of the paper 4 reaches a hydrapulper 7, is processed by the hydrapulper 7 to complete the back-copying operation, and then enters the subsequent processes.

The embodiments of the present invention have been described in detail, but the description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention. Any modification, equivalent replacement, and improvement made within the scope of the application of the present invention should be included in the protection scope of the present invention.