A method and equipment for preparing high-tensile and high-strength machine pulp

Abstract

The present invention discloses a method and equipment for preparing high-bulk and high-strength machine pulp, which includes the following steps: S1. Select the materials required for preparation, wash them and then dry them in the sun for standby; S2. Put the standby materials into a pulverizer for pulverization to form pulverized materials; S3. Put the pulverized materials into a soaking device, add a soaking solution, and add sodium hydroxide with a dosage of 5 grams per liter to 6 grams per liter, and carry out preheating soaking for 3 hours to 4 hours to obtain soaked materials; S4. Put the soaked materials into a cooking device for high-temperature cooking for 1 hour to 2 hours to obtain cooked materials; S5. Directly put the cooked materials into a fibrillation device in a closed state for high-temperature fibrillation for 5 hours to 6 hours to obtain fibrillated materials; S6. Put the fibrillated materials into a concentration device for refining and concentration, and then the preparation can be completed, which is beneficial to efficient transportation and operation, beneficial to production control, and convenient for preparation and production.

Description

Technical Field

[0001] The present invention relates to the field of chemical-mechanical pulp, and more particularly to a method and equipment for preparing high-bulk and high-strength chemical-mechanical pulp. Background Art

[0002] Chemical-mechanical pulping is a high-yield, low-cost, low-pollution pulping method developed in the 1990s, which has low production economic scale requirements.

[0003] However, the existing chemical-mechanical pulp preparation methods all use split equipment, which requires multiple transfers during operation. This is not only inefficient and labor-intensive, but also prone to additional pollution and low safety. It is impossible to continuously transport and prepare after adding materials. A new method and equipment needs to be proposed. Summary of the Invention

[0004] In response to the problems existing in the prior art, the purpose of the present invention is to provide a method and equipment for preparing high-looseness and high-strength mechanical pulp. Through the connected equipment structure combined with the internal immersion tube, materials can be directly added and then chemically treated to ensure stability and safety in a sealed environment and avoid pollution. At the same time, it is conducive to efficient transportation and operation, production control, and convenient preparation and production.

[0005] To solve the above problems, the present invention adopts the following technical solutions.

[0006] A method and apparatus for preparing high-loose and high-strength mechanical pulp, the preparation method comprising the following steps:

[0007] S1. Select the materials needed for preparation, rinse and air-dry them for later use;

[0008] S2, putting the spare material into the crusher for crushing to form crushed material;

[0009] S3, the crushed material is put into the soaking equipment, the soaking solution is added, sodium hydroxide is added in an amount of 5 grams per liter to 6 grams per liter, and preheating and soaking is carried out for 3 hours to 4 hours to obtain the soaked material;

[0010] S4, putting the soaked material into a cooking device and performing high-temperature cooking for 1 to 2 hours to obtain a cooked material;

[0011] S5, directly putting the cooked material into a silk-making device in a closed state for high-temperature silk-making for 5 to 6 hours to obtain a silk-made material;

[0012] S6. Put the silk-forming material into the concentration equipment for refining and concentration to complete the preparation;

[0013] The soaking equipment and steaming equipment in this preparation method respectively include a soaking box body and a steaming box body. One surface of the steaming box body is fixedly connected with a connecting pipe. One end surface of the connecting pipe is fixedly installed with the soaking box body. One surface of the soaking box body is fixedly connected with an operation pipe. One end surface of the steaming box body is provided with an exhaust pipe, and the exhaust pipe is fixedly connected to one end surface of the soaking box body. One end surface of the soaking box body is fixedly installed with a telescopic rod, and the rod head of the telescopic rod is fixedly installed with a soaking pipe. The soaking pipe is opposite to one end surface of the connecting pipe, and the soaking pipe is slidably connected to one side surface of the soaking box body. The bottoms of the steaming box body and the soaking box body are both fixedly connected with fixing plates.

[0014] Furthermore, limiting plates are provided on one end surfaces of the operation pipe and the connecting pipe, and the limiting plates are located at both ends of the soaking pipe. By connecting the limiting plates, limit connection can be achieved to ensure accurate alignment.

[0015] Furthermore, mesh plates are fixedly connected to both side surfaces of the soaking box body, and the mesh plates are located on both side surfaces of the soaking pipe. By connecting the mesh plates, combined connection can be achieved to prevent the material from spilling.

[0016] Furthermore, a cover plate is fixedly installed on one end surface of the steaming box body, and a connecting rod and a mesh tray are fixedly connected to one side surface of the cover plate. By installing the mesh tray, the material can be caught to facilitate transfer and transportation.

[0017] Furthermore, the mesh tray is slidably connected to one side surface of the steaming box body and is located on one side of the connecting pipe.

[0018] Furthermore, a sealing groove is provided on one end surface of the connecting pipe, and a sealing plate is slidably connected to the side surface of the sealing groove.

[0019] Furthermore, guide rods are provided on both end surfaces of the sealing plate, and a return spring is slidably sleeved on the surface of the guide rods. By installing the guide rods on the sealing plate, guiding and sealing can be achieved to avoid leakage, and at the same time, it is beneficial for feeding production.

[0020] Furthermore, the guide rods are slidably connected to one side surface of the steaming box body and are tightly connected to one end surface of the return spring.

[0021] Furthermore, the soaking pipe is of a straight-through pipe structure and both ends are of an open structure.

[0022] Compared with the prior art, the advantages of the present invention are as follows:

[0023] (1) With the combined equipment structure of this solution and the internal soaking pipe, materials can be directly added for chemical treatment, ensuring stability and safety in a sealed environment, avoiding pollution, being beneficial for efficient transportation and operation, facilitating production control, and being convenient for preparation and production.

[0024] (2) By connecting the limit plate, the connection can be limited to ensure accurate alignment.

[0025] (3) By connecting the mesh plates, they can be combined and connected to prevent materials from spilling.

[0026] (4) By installing a mesh tray, materials can be caught and transported more easily.

[0027] (5) Installing the guide rod through the sealing plate can guide the seal to avoid leakage and facilitate feeding production. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 It is a partial schematic diagram of the soaking tube connection of the present invention;

[0030] Figure 3 It is a partial schematic diagram of the sealing plate connection of the present invention.

[0031] Description of the numbers in the figure:

[0032] 1 cooking box body, 11 connecting pipe, 12 soaking box body, 13 operating pipe, 14 exhaust pipe, 15 telescopic rod, 16 soaking pipe, 17 limit plate, 18 mesh plate, 2 cover plate, 21 connecting rod, 22 mesh tray, 23 fixing plate, 24 sealing groove, 25 sealing plate, 26 guide rod, 27 return spring. DETAILED DESCRIPTION

[0033] The technical solutions 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; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0034] See also Figures 1-3 A method and apparatus for preparing high-loose and high-strength mechanical pulp, the preparation method comprising the following steps:

[0035] S1. Select the materials needed for preparation, rinse and air-dry them for later use;

[0036] S2, putting the spare material into the crusher for crushing to form crushed material;

[0037] S3, the crushed material is put into the soaking equipment, the soaking solution is added, sodium hydroxide is added in an amount of 5 grams per liter to 6 grams per liter, and preheating and soaking is carried out for 3 hours to 4 hours to obtain the soaked material;

[0038] S4. Put the soaked material into the cooking equipment and carry out high-temperature cooking for 1 to 2 hours to obtain the cooked material;

[0039] S5. Directly put the cooked material into the silk-making equipment in a closed state for high-temperature silk-making for 5 to 6 hours to obtain the silk-made material;

[0040] S6. Put the silk-made material into the concentration equipment for grinding and concentration to complete the preparation;

[0041] Please refer to Figure 1 and Figure 2 In this preparation method, the soaking equipment and the cooking equipment respectively include a soaking box body 12 and a cooking box body 1. One side surface of the cooking box body 1 is fixedly connected with a connecting pipe 11. One end surface of the connecting pipe 11 is fixedly installed with the soaking box body 12. One side surface of the soaking box body 12 is fixedly connected with an operation pipe 13. One end surface of the cooking box body 1 is provided with an exhaust pipe 14. The exhaust pipe 14 is fixedly connected to one end surface of the soaking box body 12. One end surface of the soaking box body 12 is fixedly installed with a telescopic rod 15. The rod head of the telescopic rod 15 is fixedly installed with a soaking pipe 16. The soaking pipe 16 is opposite to one end surface of the connecting pipe 11. The soaking pipe 16 is slidably connected to one side surface of the soaking box body 12. The bottoms of the cooking box body 1 and the soaking box body 12 are both fixedly connected with fixing plates 23.

[0042] Please refer to Figure 1 In, limit plates 17 are provided on one end surfaces of the operation pipe 13 and the connecting pipe 11. The limit plates 17 are located at both ends of the soaking pipe 16. By connecting the limit plates 17, limit connection can be achieved to ensure accurate alignment. Mesh plates 18 are fixedly connected to both side surfaces of the soaking box body 12. The mesh plates 18 are located at both side surfaces of the soaking pipe 16. By connecting the mesh plates 18, combined connection can be achieved to prevent material spillage. A cover plate 2 is fixedly installed on one end surface of the cooking box body 1. One side surface of the cover plate 2 is fixedly connected with a connecting rod 21 and a mesh tray 22. By installing the mesh tray 22, the material can be received to facilitate transfer and transportation.

[0043] Please refer to Figure 1 and Figure 3 In, a sealing groove 24 is provided on one end surface of the connecting pipe 11. A sealing plate 25 is slidably connected to the side surface of the sealing groove 24. Guide rods 26 are provided on both end surfaces of the sealing plate 25. A return spring 27 is slidably sleeved on the surface of the guide rods 26. By installing the guide rods 26 on the sealing plate 25, guiding and sealing can be achieved to avoid leakage and facilitate feeding and production.

[0044] During use, the soaking solution can be added from inside the operation tube 13, and the material can be put into the soaking tube 16. At the same time, the cooking solution is added to the cooking box body 1 for heating. The generated steam can enter the soaking box body 12 from the exhaust pipe 14, so as to preheat the material, which is beneficial to recycling. Then, the control telescopic rod 15 is extended to push the soaking tube 16 to slide downward, and the two open ends are aligned with the mesh plates 18 on both sides to prevent the material from spilling. At the same time, the soaking solution can be discharged, which is beneficial to pretreatment. After soaking, the control telescopic rod 15 can be retracted and reset upward. After the soaking tube 16 abuts against the limit plate 17, it is accurately aligned with the connecting tube 11. The material can be pushed into the connecting tube 11 from inside the operation tube 13, and then enter the cooking box body 1 after pushing open the sealing plate 25, which is beneficial to continuous operation. It is safe and environmentally friendly in a sealed environment. Then, new materials are continuously added for soaking treatment. The return spring 27 abuts against the guide rod 26 to drive the sealing plate 25 to reset and seal, without leakage. Soaking and cooking can be carried out simultaneously to ensure safety and high efficiency, which is beneficial to preparation and production.

[0045] The above is only the preferred specific implementation mode of the present invention; however, the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its improved concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A preparation method of high-brightness and high-strength machine pulp, characterized in that: The preparation method includes the following steps: S1. Select the materials required for preparation, rinse them, and then dry them in the sun for standby; S2. Put the standby materials into a crusher for crushing to form crushed materials; S3. Put the crushed materials into a soaking device, add a soaking solution, and add sodium hydroxide with a dosage of 5 g / L to 6 g / L. Then, carry out preheating and soaking for 3 hours to 4 hours to obtain soaked materials; S4. Put the soaked materials into a cooking device and carry out high-temperature cooking for 1 hour to 2 hours to obtain cooked materials; S5. Directly put the cooked materials into a silk-making device in a closed state for high-temperature silk-making for 5 hours to 6 hours to obtain silk-made materials; S6. Put the silk-made materials into a concentration device and carry out pulp grinding and concentration to complete the preparation; The soaking device and the cooking device in this preparation method respectively include a soaking box body (12) and a cooking box body (1). One side surface of the cooking box body (1) is fixedly connected with a connecting pipe (11). One end surface of the connecting pipe (11) is fixedly installed with a soaking box body (12). One side surface of the soaking box body (12) is fixedly connected with an operation pipe (13). One end surface of the cooking box body (1) is provided with an exhaust pipe (14). The exhaust pipe (14) is fixedly connected to one end surface of the soaking box body (12). One end surface of the soaking box body (12) is fixedly installed with a telescopic rod (15). The rod head of the telescopic rod (15) is fixedly installed with a soaking pipe (16). The soaking pipe (16) is opposite to one end surface of the connecting pipe (11). The soaking pipe (16) is slidably connected to one side surface of the end of the soaking box body (12). The bottoms of the cooking box body (1) and the soaking box body (12) are both fixedly connected with fixing plates (23).

2. The preparation method of a high-strength machine pulp with high bulk according to claim 1, characterized in that: Limit plates (17) are provided on one end surfaces of the operation pipe (13) and the connecting pipe (11). The limit plates (17) are located at both ends of the soaking pipe (16).

3. A method for preparing high-brightness and high-strength mechanical pulp according to claim 1, characterized in that: Mesh plates (18) are fixedly connected to both side surfaces of the soaking box body (12). The mesh plates (18) are located on both side surfaces of the ends of the soaking pipe (16).

4. A method for preparing high-yield and high-strength mechanical pulp according to claim 1, characterized in that: One end surface of the cooking box body (1) is fixedly installed with a cover plate (2). One side surface of the cover plate (2) is fixedly connected with a connecting rod (21) and a mesh tray (22).

5. A method for preparing high-brightness and high-strength mechanical pulp according to claim 4, characterized in that: The mesh tray (22) is slidably connected to one side surface of the end of the cooking box body (1) and is located on one side of the connecting pipe (11).

6. A method for preparing high-strength machine pulp with high hollocellulose content according to claim 1, characterized in that: A sealing groove (24) is provided on one end surface of the connecting pipe (11). A sealing plate (25) is slidably connected to the side surface of the sealing groove (24).

7. A method for preparing high-brightness and high-strength mechanical pulp according to claim 6, characterized in that: Guide rods (26) are provided on both end surfaces of the sealing plate (25). A return spring (27) is slidably sleeved on the surface of the guide rods (26).

8. A method for preparing high-yield high-strength mechanical pulp according to claim 7, characterized in that: The guide rods (26) are slidably connected to one side surface of the cooking box body (1) and are tightly connected to one end surface of the return spring (27).

9. A method for preparing high-shive high-strength machine pulp according to claim 1, characterized in that: The soaking pipe (13) is of a straight-through pipe structure and both ends are of an open structure.

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