Paper pulp bleaching device

Abstract

The utility model discloses a paper pulp bleaching device which comprises a bleaching tank, a motor is arranged at the top of the bleaching tank, a rotating shaft extending into the bleaching tank is arranged on an output shaft of the motor, a plurality of fixing blocks are arranged on the rotating shaft at intervals, springs arranged outside the rotating shaft in a sleeved mode are arranged on the fixing blocks, a connecting sleeve is arranged at the upper end of each spring, and the rotating shaft is movably sleeved with the connecting sleeve. And stirring blades are arranged outside the connecting sleeve. The stirring device has the beneficial effects that the stirring blade is movably sleeved outside the rotating shaft through the connecting sleeve and is connected with the fixed block through the spring, so that the stirring blade can disturb paper pulp in the vertical direction in the mixing and stirring process, and the mixing effect of a bleaching agent and the paper pulp is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pulp processing, in particular to a pulp bleaching device. Background Art

[0002] Pulp is a fibrous material made from plant fiber, which is mostly used to make paper and paperboard. Pulp processing often requires bleaching to remove colored substances and other impurities in the pulp to improve whiteness and purity. The existing bleaching device has a relatively simple stirring structure, a relatively fixed stirring blade activity area, and poor vertical pulp mixing effect, resulting in poor mixing effect between pulp and bleach, long stirring time, and low bleaching efficiency. Utility Model Content

[0003] The utility model aims to provide a pulp bleaching device to solve the problems that the stirring structure of the bleaching device is relatively simple, the active area of ​​the stirring blades is relatively fixed, and the pulp mixing effect in the vertical direction is poor.

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] A pulp bleaching device comprises a bleaching tank, wherein a motor is arranged on the top of the bleaching tank, wherein the motor output shaft is provided with a rotating shaft extending into the bleaching tank, wherein a plurality of fixed blocks are arranged at intervals on the rotating shaft, wherein the fixed blocks are provided with a spring sleeved outside the rotating shaft, wherein a connecting sleeve is arranged at the upper end of the spring, wherein the connecting sleeve is movably sleeved outside the rotating shaft, and a stirring blade is arranged outside the connecting sleeve.

[0006] Furthermore, a discharge port is provided at the lower end of the bleaching tank, and a disturbance blade adapted to the discharge port is provided at the lower end of the rotating shaft.

[0007] Furthermore, the rotating shaft is provided with a positioning guide bar adapted to the connecting sleeve, and the inner side wall of the connecting sleeve is provided with a positioning groove adapted to the positioning guide bar.

[0008] Furthermore, a scraper is symmetrically provided outside the lowermost connecting sleeve, and the scraper comprises an L-shaped scraper plate, a horizontal portion of the L-shaped scraper plate is fixed to the connecting sleeve, and a vertical portion of the L-shaped scraper plate contacts the inner wall of the bleaching tank.

[0009] Furthermore, a pulp inlet and a bleaching agent inlet are provided at the upper end of the bleaching tank, and a supporting leg is provided at the lower end of the bleaching tank.

[0010] The utility model has the following advantages:

[0011] The stirring blade is movably mounted outside the rotating shaft through a connecting sleeve and is connected to a fixed block through a spring, so that the stirring blade can disturb the pulp in the vertical direction during the mixing and stirring process, thereby improving the mixing effect of the bleaching agent and the pulp. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] In the figure, 1-bleaching tank, 2-motor, 3-rotating shaft, 4-fixed block, 5-spring, 6-connecting sleeve, 7-stirring blade, 8-positioning guide bar, 9-discharge port, 10-disturbance blade, 11-L-shaped scraper plate, 12-pulp inlet, 13-bleaching agent inlet, 14-support leg. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0015] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0016] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.

[0017] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0018] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0019] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] refer to Figure 1 As shown, one embodiment of the utility model is:

[0021] A pulp bleaching device comprises a bleaching tank 1, wherein a motor 2 is arranged on the top of the bleaching tank 1, wherein the output shaft of the motor 2 is provided with a rotating shaft 3 extending into the bleaching tank 1, wherein a plurality of fixing blocks 4 are arranged at intervals on the rotating shaft 3, wherein the fixing blocks 4 are provided with a spring 5 sleeved outside the rotating shaft 3, wherein a connecting sleeve 6 is arranged at the upper end of the spring 5, wherein the connecting sleeve 6 is movably sleeved outside the rotating shaft 3, and a stirring blade 7 is arranged outside the connecting sleeve 6.

[0022] The stirring blade 7 is movably mounted outside the rotating shaft 3 through the connecting sleeve 6, and is connected to the fixing block 4 through the spring 5, so that the stirring blade 7 can disturb the pulp in the vertical direction during the mixing and stirring process, thereby improving the mixing effect of the bleaching agent and the pulp.

[0023] Specifically, in order to reduce the shaking amplitude of the connecting sleeve 6 in the horizontal plane, in this embodiment, a positioning guide bar 8 adapted to the connecting sleeve 6 is provided on the rotating shaft 3, and a positioning groove adapted to the positioning guide bar 8 is provided on the inner side wall of the connecting sleeve 6.

[0024] The lower end of the bleaching tank 1 is provided with a discharge port 9 , and the lower end of the rotating shaft 3 is provided with a disturbance blade 10 adapted to the discharge port 9 .

[0025] By arranging disturbance blades above the discharge port, smooth discharge of the bleached pulp is ensured.

[0026] In this embodiment, a scraper is symmetrically provided outside the lowermost connecting sleeve 6, and the scraper includes an L-shaped scraper plate 11, the horizontal portion of which is fixed to the connecting sleeve 6, and the vertical portion of which is in contact with the inner wall of the bleaching tank 1.

[0027] By providing an L-shaped scraper plate 11 connected to the fixed block via a spring 5, the pulp adhering to the inner wall of the bleaching tank can be effectively scraped off during the mixing process, ensuring that all pulp can be effectively bleached and the bleaching effect of the pulp is guaranteed.

[0028] The upper end of the bleaching tank 1 is provided with a pulp inlet 12 and a bleaching agent inlet 13 , and the lower end of the bleaching tank 1 is provided with a supporting leg 14 .

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pulp bleaching device, characterized in that: It comprises a bleaching tank, wherein a motor is arranged on the top of the bleaching tank, wherein the output shaft of the motor is provided with a rotating shaft extending into the bleaching tank, wherein a plurality of fixing blocks are arranged at intervals on the rotating shaft, wherein the fixing blocks are provided with a spring sleeved outside the rotating shaft, wherein the upper end of the spring is provided with a connecting sleeve, wherein the connecting sleeve is movably sleeved outside the rotating shaft, and a stirring blade is arranged outside the connecting sleeve.

2. A pulp bleaching device according to claim 1, characterized in that: The lower end of the bleaching tank is provided with a discharge port, and the lower end of the rotating shaft is provided with a disturbance blade adapted to the discharge port.

3. A pulp bleaching device according to claim 1, characterized in that: The rotating shaft is provided with a positioning guide bar adapted to the connecting sleeve, and the inner side wall of the connecting sleeve is provided with a positioning groove adapted to the positioning guide bar.

4. A pulp bleaching device according to claim 1, characterized in that: A scraper is symmetrically arranged outside the lowermost connecting sleeve, and the scraper comprises an L-shaped scraper plate, the horizontal portion of which is fixed to the connecting sleeve, and the vertical portion of which is in contact with the inner wall of the bleaching tank.

5. A pulp bleaching device according to claim 1, characterized in that: The upper end of the bleaching tank is provided with a pulp inlet and a bleaching agent inlet, and the lower end of the bleaching tank is provided with a supporting leg.

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