Paper pulp bleaching equipment

Abstract

The utility model relates to the technical field of bleaching equipment, and discloses paper pulp bleaching equipment which is characterized in that a stirring rod is arranged in a tank body, and a main rod of the stirring rod is designed to be a rectangular rod; a telescopic assembly is arranged at the top of the tank body and comprises a rod body, the bottom end of the rod body penetrates through the top of the tank body and is rotationally connected with the tank body, and a stirring rod penetrates through the rod body; the first bevel gear is fixedly arranged on the outer side wall of the rod body in a sleeving mode. The motor I is arranged at the top of the tank body; the bevel gear II is arranged on an output shaft of the motor I and is meshed with the bevel gear I; the top plate is arranged at the top of the stirring rod; according to the bleaching equipment, the telescopic assembly drives a first bevel gear and a second bevel gear to be engaged through a first motor to drive a stirring rod to rotate, meanwhile, a second motor drives an extrusion block to move the stirring rod up and down, and the mixing effect of the stirring rod is improved. According to the bleaching equipment, the protection assembly can shield and protect the exposed part of the assembly through the guardrail, and mistaken touch of workers is avoided.

Description

Technical Field

[0001] This utility model relates to the field of bleaching equipment technology, specifically to a pulp bleaching device. Background Technology

[0002] Pulp is an intermediate product in the papermaking industry. Pulp is mainly a fibrous material made from plant fibers through different processing methods. In the papermaking process, pulp needs to be bleached. Pulp bleaching uses bleaching agents to bleach the uncolored pulp, removing colored substances and other impurities to improve whiteness and purity.

[0003] Chinese utility model CN222251511U discloses a pulp bleaching device, which features a movable stirring rod. The principle is to install a spring connecting sleeve and stirring blades on the stirring rod. When the rod rotates, the spring extends and retracts, causing the connecting sleeve to move up and down on the rotating rod, thereby causing the stirring blades to rotate as well, mixing the pulp inside the tank and improving the mixing effect.

[0004] However, in existing devices, the springs are in direct contact with the pulp, and during rotation, a significant amount of paper may adhere to or become entangled on the springs, affecting their extension function. Therefore, a bleaching device less susceptible to these problems was designed. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a pulp bleaching device that has the advantage that direct contact with the pulp in existing devices can affect spring extension, thus solving the problem that existing devices are not easily affected.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a pulp bleaching device, comprising: a tank body with a stirring rod inside, wherein the main rod of the stirring rod is a rectangular rod design; a telescopic assembly is provided on the top of the tank body, the telescopic assembly comprising: a rod body with its bottom end penetrating through the top of the tank body and rotatably connected to the tank body, and the rod body being penetrated by the stirring rod; a bevel gear one fixedly sleeved on the outer wall of the rod body; a motor one disposed on the top of the tank body; a bevel gear two disposed on the output shaft of the motor one and meshing with the bevel gear one; a top plate disposed on the top of the stirring rod; a spring one with both ends in contact with the rod body and the top plate; a motor two disposed above the bevel gear one; a pressing block disposed on the output shaft of the motor two; and a protective assembly is provided on the top of the tank body for protecting the assembly.

[0009] Optionally, the spring is fitted onto the outside of the main rod of the stirring rod.

[0010] Optionally, the outer wall of the extrusion block is designed with an arc shape.

[0011] Optionally, the telescopic assembly further includes: a roller rotatably mounted within the top of the top plate.

[0012] Optionally, the telescopic assembly further includes: fan blades fixedly disposed at the bottom of the stirring rod.

[0013] Optionally, the protective component includes: a slide rail fixedly disposed on the top of the tank; and a guardrail disposed on the top of the tank and slidably connected to the slide rail.

[0014] Optionally, the protective assembly further includes: a positioning hole opened at the top of the tank; a protruding plate disposed on the front surface of the guardrail; the bottom end of the upright penetrating through the protruding plate and inserted into the positioning hole; a pull plate disposed at the top of the upright; and two springs sleeved on the outside of the upright, with both ends connected to the protruding plate and the pull plate.

[0015] Optionally, the protective component further includes a cone disposed at the bottom of the upright.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a pulp bleaching device with the following beneficial effects:

[0018] 1. In this bleaching equipment, the telescopic component drives the stirring rod to rotate through the meshing of bevel gear one and bevel gear two via motor one. At the same time, motor two drives the extrusion block to move the stirring rod up and down, thereby improving the mixing effect of the stirring rod.

[0019] 2. The protective components of this bleaching equipment can be shielded and protected by guardrails to prevent workers from accidentally touching them. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the tank body of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the telescopic component of this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the protective component of this utility model.

[0024] In the diagram: 11. Tank body; 12. Stirring rod;

[0025] 2. Telescopic assembly; 21. Rod body; 22. Bevel gear one; 23. Motor one; 24. Bevel gear two; 25. Top plate; 251. Roller; 26. Spring one; 27. Motor two; 28. Extrusion block; 29. ​​Fan blade;

[0026] 3. Protective components; 31. Slide rail; 32. Guardrail; 33. Positioning hole; 34. Protruding plate; 35. Upright post; 36. Pull plate; 37. Spring II; 38. Cone. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0028] It should be noted that all directional indications in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0029] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0030] In related technologies, the principle involves setting a spring connecting sleeve and a stirring blade on the stirring rod. When rotating, the spring extends and retracts, causing the connecting sleeve to move up and down on the rotating rod, thereby causing the stirring blade to rotate as well, mixing the pulp inside the tank and improving the mixing effect. However, in existing devices, the spring is in direct contact with the pulp, and during rotation, a lot of paper may adhere to or become entangled on the spring, affecting the spring's extension function.

[0031] To address some of the problems in related technologies, this application provides a pulp bleaching device. When pulp needs to be bleached, the pulp and bleaching agent are first added to the inside of the tank 11. Then, motor 1 23 and motor 27 are connected to an external power source. Motor 1 23 drives bevel gear 24 to rotate and meshes with bevel gear 22, causing rod 21 to rotate. During the rotation of rod 21, because the upright of stirring rod 12 is designed as a rectangular rod, the stirring rod 12 rotates along with rod 21 to mix the pulp inside the tank 11. At the same time, motor 27 drives the extrusion block 28 to rotate, which can squeeze the top plate 25 downward to compress the spring 26, and at the same time drive the stirring rod 12 to move downward. The extrusion block 28 is an eccentric wheel design that works with spring 26. When rotating, it drives the stirring rod 12 to move up and down, thereby improving the mixing effect.

[0032] This application is described below with reference to the accompanying drawings and specific embodiments:

[0033] This application provides a pulp bleaching device, including: a tank 11 with a stirring rod 12 inside, the main rod of the stirring rod 12 being a rectangular rod design; a telescopic assembly 2 is provided on the top of the tank 11, the telescopic assembly 2 including: a rod 21 with its bottom end penetrating through the top of the tank 11 and rotatably connected to the tank 11, and the rod 21 being penetrated by the stirring rod 12; a bevel gear 22 fixedly sleeved on the outer side wall of the rod 21; a motor 23 disposed on the top of the tank 11; a bevel gear 24 disposed on the output shaft of the motor 23 and meshing with the bevel gear 22; a top plate 25 disposed on the top of the stirring rod 12; a spring 26 with both ends in contact with the rod 21 and the top plate 25; a motor 27 disposed above the bevel gear 22; a pressing block 28 disposed on the output shaft of the motor 27; and a protective assembly 3 is provided on the top of the tank 11 for protecting the assembly.

[0034] When bleaching the pulp is required, first add the pulp and bleaching agent into the tank 11. Then connect motor 1 23 and motor 27 to an external power source. Motor 1 23 drives bevel gear 24 to rotate and meshes with bevel gear 22, causing rod 21 to rotate. During the rotation of rod 21, because the upright of stirring rod 12 is designed as a rectangular rod, the stirring rod 12 rotates along with rod 21 to mix the pulp inside tank 11. At the same time, motor 27 drives the extrusion block 28 to rotate, which can squeeze the top plate 25 downward to compress the spring 26, and at the same time drive the stirring rod 12 to move downward. The extrusion block 28 is an eccentric wheel design that works with spring 26. When rotating, it drives the stirring rod 12 to move up and down, thereby improving the mixing effect.

[0035] Furthermore, the spring 26 is sleeved on the outside of the main rod of the stirring rod 12.

[0036] The sleeve design prevents the spring 26 from bending when compressed, thus better protecting the spring 26.

[0037] Furthermore, the outer wall of the extrusion block 28 is designed with an arc shape.

[0038] The curved design makes the surface smoother during use and reduces scratches when it comes into contact with the top plate 25.

[0039] Furthermore, the telescopic assembly 2 also includes a roller 251 that is rotatably mounted on the top of the top plate 25.

[0040] The design of roller 251 during use reduces friction when it comes into contact with extrusion block 28.

[0041] Furthermore, the telescopic assembly 2 also includes a fan blade 29 fixedly disposed at the bottom of the stirring rod 12.

[0042] When in use, the fan blade 29 is designed to rotate with the stirring rod 12, stirring up the pulp settled at the bottom of the tank 11 and improving the mixing effect.

[0043] Furthermore, the protective component 3 includes: a slide rail 31 fixedly disposed on the top of the tank body 11; and a guardrail 32 disposed on the top of the tank body 11 and slidably connected to the slide rail 31.

[0044] When in use, the guide rail 31 can be used to slide the guardrail 32 to the top of the tank 11, which can protect the bevel gear 1 22, bevel gear 24 and the extrusion block 28 from accidental contact and injury.

[0045] Furthermore, the protective component 3 also includes: a positioning hole 33 opened on the top of the tank body 11; a protruding plate 34 disposed on the front surface of the guardrail 32; the bottom end of the upright 35 penetrating through the protruding plate 34 and inserted into the interior of the positioning hole 33; a pull plate 36 disposed on the top of the upright 35; and a second spring 37 sleeved on the outside of the upright 35, with both ends connected to the protruding plate 34 and the pull plate 36.

[0046] When in use, pull the pull plate 36 upward to move the upright 35 upward and disengage the bottom end from the positioning hole 33. At the same time, stretch the second spring 37. This releases the restriction on the guardrail 32. After dragging the guardrail 32 to slide on the slide rail 31 and adjusting it to a suitable position, release the pull plate 36. The second spring 37 retracts and moves the pull plate 36 downward, allowing the upright 35 to be inserted into the positioning hole 33 for fixation.

[0047] Furthermore, the protective component 3 also includes a cone 38 disposed at the bottom of the upright 35.

[0048] When in use, the pointed tip at the bottom of the cone 38 makes it easier to insert into the positioning hole 33.

[0049] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," and "some examples" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0050] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0051] Although embodiments of the present invention have been shown and described, it will be understood by 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pulp bleaching device, comprising: The tank body has an internal stirring rod, and the main rod of the stirring rod is designed as a rectangular rod. The feature is that: a telescopic assembly is provided at the top of the tank, the telescopic assembly comprising: The rod has its bottom end penetrating through the top of the tank and is rotatably connected to the tank, and the rod is penetrated by the stirring rod; A bevel gear one is fixedly sleeved on the outer wall of the rod body; Motor 1 is located at the top of the tank. A second bevel gear is mounted on the output shaft of the first motor and meshes with the first bevel gear. A top plate is disposed at the top of the stirring rod; Spring 1 has both ends in contact with the rod and the top plate; Motor 2 is positioned above the bevel gear 1; The extrusion block is disposed on the output shaft of the second motor; The top of the tank is equipped with a protective component for protecting the components.

2. A pulp bleaching apparatus according to claim 1, characterized in that: The spring is fitted onto the outside of the main rod of the stirring rod.

3. A pulp bleaching apparatus according to claim 1, characterized in that: The outer wall of the extrusion block (28) is arc-shaped.

4. A pulp bleaching apparatus according to claim 1, characterized in that: The telescopic component also includes: The rollers are embedded and rotatably mounted on the top of the top plate.

5. A pulp bleaching apparatus according to claim 1, characterized in that: The telescopic assembly also includes: fan blades, which are fixedly disposed at the bottom of the stirring rod.

6. A pulp bleaching apparatus according to claim 1, characterized in that: The protective components include: A slide rail is fixedly installed on the top of the tank body; A guardrail is installed on the top of the tank and is slidably connected to the slide rail.

7. A pulp bleaching apparatus according to claim 6, characterised in that: The protective components also include: A positioning hole is provided at the top of the tank body; A protruding plate is provided on the front surface of the guardrail; The bottom end of the upright pole passes through the protruding plate and is inserted into the positioning hole. A pull plate is installed at the top of the upright; Spring 2 is sleeved on the outside of the upright, and both ends are connected to the convex plate and the pull plate.

8. A pulp bleaching apparatus according to claim 7, characterised in that: The protective components also include: A cone is provided at the bottom of the upright.

Images