Bleaching reaction device in wood pulp production

By designing a mixing device for wood pulp bleaching equipment that can achieve simultaneous motion in axial and radial directions, the problem of insufficient mixing of traditional equipment is solved, and the mixing efficiency of wood pulp and bleaching agents is improved, and the uniformity and efficiency of bleaching effect are improved.

CN222908405UActive Publication Date: 2025-05-27SHANDONG HONGSHENG NEW MATERIALS CO LTD
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Patent Information

Application Number
CN202520619115.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-03
Publication Date
2025-05-27
Estimated Expiration
2035-04-03

AI Technical Summary

Technical Problem

The existing mixing device of wood pulp bleaching equipment is relatively traditional, and the mixing blade movement is single, and it is impossible to achieve simultaneous movement of axial and radial directions, resulting in insufficient mixing of wood pulp and bleaching agents, affecting the uniformity and efficiency of the bleaching effect.

Method used

A bleaching reaction device in wood pulp production is designed. The mixed blades realize axial and radial movement in the mixing box. Through the coordination of the installation shaft, guide portion, guide groove and clamp of the rectangular structure, the reciprocating movement of the slide rod and the semicircular side seat is driven to achieve axial and radial synchronous movement of the mixed blades.

Benefits of technology

By moving simultaneously in the axial and radial directions of the mixing blades, the contact area between the wood pulp and the bleaching agent is increased, the mixing efficiency is improved, and a more complete bleaching reaction is achieved.

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Abstract

The utility model relates to the technical field of papermaking equipment, and discloses a bleaching reaction device in wood pulp production, which comprises a mixing box, a bottom frame fixedly mounted at the lower end of the mixing box, a driving motor fixedly mounted on the bottom frame on one side of the mixing box, and a shaft seat fixedly mounted on the bottom frame on the other side of the mixing box, the driving motor is electrically connected with an external master controller through a cable, a cross beam is fixedly mounted in the mixing box, and a first guide rail is fixedly mounted at the lower end of the cross beam. A plurality of guide parts, a first guide groove and a second guide groove are formed in the outer side of the mounting shaft of a rectangular structure, reciprocating motion of a sliding rod can be achieved, a side rod is arranged on one side of the sliding rod, and a sliding groove in the side rod is slidably connected to two second guide rails, so that reciprocating motion of a clamping plate can be achieved; therefore, the clamping plates drive the mixing blades to axially move in the mixing box through the mounting rods and realize radial movement at the same time, the limitation of traditional single movement can be broken through, materials are disturbed in multiple angles and multiple directions, and the contact area of wood pulp and a bleaching agent is increased.
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Description

Technical Field

[0001] The utility model relates to the technical field of papermaking equipment, in particular to a bleaching reaction device in wood pulp production. Background Art

[0002] The bleaching operation of wood pulp is a process of removing the chromophores in the wood pulp by chemical methods to improve the whiteness of the wood pulp. According to the type and quality requirements of the wood pulp, a suitable bleaching agent, such as chlorine, chlorine dioxide, hydrogen peroxide, etc., is selected and added to the pulp in a certain proportion;

[0003] The mixing device design of most existing wood pulp bleaching equipment is relatively traditional, and the mixing blade movement form is single, and it is common to only achieve unidirectional axial or radial movement. When the blade only moves axially, the material is insufficiently disturbed in the horizontal direction, and the contact and mixing of the wood pulp and the bleaching agent in the horizontal plane is not sufficient. If the blade only moves radially, the mixing of materials in the vertical direction will be restricted, resulting in the inability of the wood pulp in some areas to effectively contact the agent. This makes it difficult to fully and comprehensively mix the wood pulp and the bleaching agent, seriously affecting the uniformity and efficiency of the bleaching effect. Utility Model Content

[0004] The purpose of the utility model is to provide a bleaching reaction device in wood pulp production, which can enable the mixing blades to achieve simultaneous axial and radial movement in the mixing box, and has a wood pulp bleaching equipment with a stable and efficient transmission structure to improve the mixing efficiency of wood pulp and bleaching agent, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A bleaching reaction device in wood pulp production comprises a mixing box, a base frame is fixedly installed at the lower end of the mixing box, a driving motor is fixedly installed on the base frame on one side of the mixing box, an axle seat is fixedly installed on the base frame on the other side of the mixing box, and the driving motor is electrically connected to an external main controller through a cable, a crossbeam is fixedly installed in the mixing box, a first guide rail is fixedly installed at the lower end of the crossbeam, a sliding rod is movably installed at the lower end of the first guide rail, a mounting shaft is rotatably connected in the mixing box, a plurality of guide parts are arranged on the outside of the mounting shaft, rotating shafts are fixedly installed at both ends of the mounting shaft, and one of the rotating shafts is fixedly connected to the output end of the driving motor through a coupling, and one end of the other rotating shaft is rotatably installed in the axle seat, a plurality of splints are also movably installed on the outside of the mounting shaft, and two of the splints form a group, two of the splints are fixedly connected to a mounting rod close to the mounting shaft, and a mixing blade is fixedly installed on the end of the mounting rod away from the splint.

[0007] As a further preferred embodiment of the present invention, an electric unloading door is movably installed at the lower end of the mixing box.

[0008] As a further preferred embodiment of the present invention, the longitudinal cross-section of the installation shaft is rectangular, and a plurality of first guide grooves are provided on the outer side of the installation shaft near the guide portion. After the plurality of first guide grooves are provided on the outer side of the installation shaft, the two clamps can be easily moved radially on the outer side of the installation shaft.

[0009] As a further preferred solution of the utility model, a second guide groove is provided on the outer side of the guide portion, and the guide portion and the second guide groove are arranged on the outer side of the mounting shaft to realize the reciprocating motion of the slide bar.

[0010] As a further preferred embodiment of the present invention, a guide ball block is fixedly mounted on the lower end of the slide rod, a slider is fixedly mounted on the upper end of the slide rod, the slider is slidably connected to the first guide rail, and the guide ball block is slidably connected to the second guide groove.

[0011] As a further preferred solution of the utility model, a side rod is fixedly installed on one side of the slide rod, and a slide groove is provided at the lower end of the side rod away from the slide rod.

[0012] As a further preferred scheme of the utility model, a plurality of balls are rotatably installed on opposite sides of the two splints, the two splints are connected to each other by bolts and inserted on the mounting shaft, and the balls are slidably connected in the corresponding first guide grooves, and the two splints are respectively fixedly installed with semicircular side seats relative to one side of the side rod, and a second guide rail is fixedly installed on the outer side of the semicircular side seat, and the slide groove is slidably connected to the second guide rail, and the mounting shaft rotates through the second guide groove to drive the slide rod to reciprocate, so that the slide rod drives the semicircular side seat to reciprocate through the side rod, so that the mixing blade can synchronously realize radial movement during axial movement, thereby improving the mixing efficiency of wood pulp, bleaching agent and oxygen.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] In the utility model, a plurality of guide parts, a first guide groove and a second guide groove are arranged on the outer side of the installation shaft of the rectangular structure, so as to realize the reciprocating motion of the sliding rod, and a side rod is arranged on one side of the sliding rod, and the sliding groove in the side rod is slidably connected to the two second guide rails, so as to realize the reciprocating motion of the splint, so that the splint drives the mixing blade to move axially in the mixing box through the installation rod and realizes radial motion at the same time, which can break the limitation of traditional single motion, disturb the material at multiple angles and directions, increase the contact area between wood pulp and bleaching agent, and thus improve the mixing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 It is a cross-sectional view of a mixing box of the utility model;

[0017] Figure 3 This is a schematic diagram of the installation shaft structure of the utility model;

[0018] Figure 4 for Figure 2 The enlarged view of point A in the middle;

[0019] Figure 5 for Figure 2 The enlarged view of point B in the middle;

[0020] Figure 6 It is a schematic diagram of the split structure of the clamping plate, the mounting rod and the mixing blade of the utility model.

[0021] In the figure: 1, mixing box; 2, base frame; 3, driving motor; 4, shaft seat; 5, electric unloading door; 6, crossbeam; 7, first guide rail; 8, slide bar; 9, mounting shaft; 10, guide part; 11, rotating shaft; 12, clamping plate; 13, mounting rod; 14, mixing blade; 15, semicircular side seat; 16, first guide groove; 17, second guide groove; 18, guide ball block; 19, slider; 20, side rod; 21, slide groove; 22, ball; 23, second guide rail. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figure 1-Figure 6 As shown, the utility model provides a bleaching reaction device in wood pulp production, including a mixing box 1, a bottom frame 2 is fixedly installed at the lower end of the mixing box 1, a driving motor 3 is fixedly installed on the bottom frame 2 on one side of the mixing box 1, an axle seat 4 is fixedly installed on the bottom frame 2 on the other side of the mixing box 1, and the driving motor 3 is electrically connected to an external main controller through a cable, a crossbeam 6 is fixedly installed in the mixing box 1, a first guide rail 7 is fixedly installed at the lower end of the crossbeam 6, a sliding rod 8 is movably installed at the lower end of the first guide rail 7, and a rotating connection 6 is fixedly installed in the mixing box 1. A mounting shaft 9 is connected, and a plurality of guide portions 10 are arranged on the outside of the mounting shaft 9. Rotating shafts 11 are fixedly installed at both ends of the mounting shaft 9, and one of the rotating shafts 11 is fixedly connected to the output end of the driving motor 3 through a coupling, and one end of the other rotating shaft 11 is rotatably installed in the shaft seat 4. A plurality of splints 12 are also movably installed on the outside of the mounting shaft 9, and two splints 12 form a group. A mounting rod 13 is fixedly connected to the side of the two splints 12 close to the mounting shaft 9, and a mixing blade 14 is fixedly installed on the end of the mounting rod 13 away from the splint 12.

[0024] like Figure 1-Figure 2As shown, an electric discharge door 5 is movably installed at the lower end of the mixing box 1.

[0025] like Figure 2-Figure 6 As shown, the longitudinal cross-section of the mounting shaft 9 is rectangular, and a plurality of first guide grooves 16 are provided on the outer side of the mounting shaft 9 near the guide portion 10. After the plurality of first guide grooves 16 are provided on the outer side of the mounting shaft 9, the two clamping plates 12 can move radially on the outer side of the mounting shaft 9. A second guide groove 17 is provided on the outer side of the guide portion 10. The guide portion 10 and the second guide groove 17 are provided on the outer side of the mounting shaft 9 to realize the reciprocating motion of the slide bar 8. A guide ball block 18 is fixedly installed on the lower end of the slide bar 8, and a slider 19 is fixedly installed on the upper end of the slide bar 8. The slider 19 is slidably connected to the first guide rail 7, and the guide ball block 18 is slidably connected in the second guide groove 17. A side rod 20 is fixedly installed on one side of the slide bar 8, and a slide groove 21 is provided on the lower end of the side rod 20 away from the slide bar 8. A plurality of balls 22 are rotatably installed on opposite sides of the two splints 12. The two splints 12 are connected to each other by bolts and inserted on the mounting shaft 9, and the balls 22 are slidably connected in the corresponding first guide grooves 16. Semicircular side seats 15 are fixedly installed on one side of the two splints 12 relative to the side rod 20, and a second guide rail 23 is fixedly installed on the outer side of the semicircular side seat 15. The slide groove 21 is slidably connected to the second guide rail 23. The mounting shaft 9 rotates through the second guide groove 17 to drive the slide bar 8 to reciprocate, so that the slide bar 8 drives the semicircular side seat 15 to reciprocate through the side rod 20, so that the mixing blade 14 can synchronously realize radial movement during axial movement, thereby improving the mixing efficiency of wood pulp, bleaching agent and oxygen.

[0026] It should be noted that the utility model is a bleaching reaction device in wood pulp production. When working, first, an external main controller sends a command to the drive motor 3, and the drive motor 3 is powered on and started. Then, the output shaft of the drive motor 3 drives the rotating shaft 11 connected to it through a coupling to rotate, and then the installation shaft 9 starts to rotate. Then, the second guide groove 17 located at the guide portion 10 on the outside of the installation shaft 9 is slidably connected to the guide ball block 18 at the lower end of the slide bar 8, and the slider 19 at the upper end of the slide bar 8 slides on the first guide rail 7, so that when the installation shaft 9 rotates, the guide ball block 18 slides in the second guide groove 17, driving the slide bar 8 to reciprocate along the first guide rail 7, and then the reciprocating motion of the slide bar 8 is transmitted through the side rod 20 is transmitted to the semicircular side seat 15, so that the semicircular side seat 15 also makes reciprocating motion, and the reciprocating motion of the semicircular side seat 15 drives the clamping plate 12 to move radially on the mounting shaft 9. At the same time, due to the rotation of the mounting shaft 9, the clamping plate 12 will also make axial motion with the mounting shaft 9. Therefore, the axial and radial motions of the clamping plate 12 are transmitted to the mixing blade 14 through the mounting rod 13, so that the mixing blade 14 can achieve radial motion while axially moving in the mixing box 1. Subsequently, after adding wood pulp, bleaching agent and oxygen into the mixing box 1, the special movement mode of the mixing blade 14 can disturb the material at multiple angles and directions, increase the contact area between the wood pulp and the bleaching agent and oxygen, improve the mixing efficiency, and make the bleaching reaction more complete.

[0027] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A bleaching reaction device in wood pulp production, characterized in that: The invention comprises a mixing box (1), wherein a base frame (2) is fixedly mounted at the lower end of the mixing box (1), a driving motor (3) is fixedly mounted on the base frame (2) located on one side of the mixing box (1), an axle seat (4) is fixedly mounted on the base frame (2) located on the other side of the mixing box (1), and the driving motor (3) is electrically connected to an external main controller via a cable, a crossbeam (6) is fixedly mounted inside the mixing box (1), a first guide rail (7) is fixedly mounted at the lower end of the crossbeam (6), a sliding rod (8) is movably mounted at the lower end of the first guide rail (7), a mounting shaft (9) is rotatably connected inside the mixing box (1), and the mounting shaft (9) 9) is provided with a plurality of guide parts (10) on the outside, and rotating shafts (11) are fixedly installed at both ends of the installation shaft (9), and one of the rotating shafts (11) is fixedly connected to the output end of the driving motor (3) through a coupling, and one end of the other rotating shaft (11) is rotatably installed in the shaft seat (4), and a plurality of clamping plates (12) are also movably installed on the outside of the installation shaft (9), and two of the clamping plates (12) form a group, and the two clamping plates (12) are fixedly connected to the side of the installation shaft (9) with a mounting rod (13), and the end of the installation rod (13) away from the clamping plate (12) is fixedly installed with a mixing blade (14).

2. The bleaching reaction device in wood pulp production according to claim 1, characterized in that: An electric discharge door (5) is also movably mounted at the lower end of the mixing box (1).

3. The bleaching reaction device in wood pulp production according to claim 1, characterized in that: The longitudinal cross-section of the installation shaft (9) is rectangular, and a plurality of first guide grooves (16) are provided on the outer side of the installation shaft (9) near the guide portion (10).

4. The bleaching reaction device in wood pulp production according to claim 3, characterized in that: A second guide groove (17) is formed on the outer side of the guide portion (10).

5. The bleaching reaction device in wood pulp production according to claim 4, characterized in that: A guide ball block (18) is fixedly mounted on the lower end of the slide bar (8), and a slider (19) is fixedly mounted on the upper end of the slide bar (8). The slider (19) is slidably connected to the first guide rail (7), and the guide ball block (18) is slidably connected to the second guide groove (17).

6. The bleaching reaction device in wood pulp production according to claim 5, characterized in that: A side rod (20) is fixedly mounted on one side of the slide rod (8), and a slide groove (21) is provided at the lower end of the side rod (20) away from the slide rod (8).

7. The bleaching reaction device in wood pulp production according to claim 6, characterized in that: A plurality of balls (22) are rotatably mounted on opposite sides of the two clamps (12); the two clamps (12) are connected to each other by bolts and inserted into the mounting shaft (9); and the balls (22) are slidably connected in the corresponding first guide grooves (16); a semicircular side seat (15) is fixedly mounted on one side of the two clamps (12) relative to the side rod (20); a second guide rail (23) is fixedly mounted on the outer side of the semicircular side seat (15); and the slide groove (21) is slidably connected to the second guide rail (23).