Corrosion-resistant chemical fiber paper tube

Abstract

The utility model provides a corrosion-resistant chemical fiber paper tube, which relates to the technical field of chemical fiber paper tubes, and comprises an inner paper tube, a middle core paper tube is sleeved on the periphery of the inner paper tube, an outer paper tube is sleeved on the periphery of the middle core paper tube, a first coating is arranged on the outer side wall of the outer paper tube, a second coating is arranged on the outer side of the first coating, and the second coating is arranged on the outer side of the outer paper tube. Compared with an existing chemical fiber paper tube, the chemical fiber paper tube has the advantages that the corrosion resistance of the chemical fiber paper tube is greatly improved, the service life of the chemical fiber paper tube can be remarkably prolonged when the chemical fiber paper tube is used in the chemical industry, and the long-time use requirement can be met.

Description

Technical Field

[0001] This utility model relates to the field of chemical fiber paper tube technology, and in particular to a corrosion-resistant chemical fiber paper tube. Background Technology

[0002] Chemical fiber paper tubes refer to paper tubes used in the winding process of chemical fibers, spinning, texturing, etc. Its main raw materials are various base papers and glues. It is usually made of multiple layers of paper tubes. Its outer diameter, thickness and length can be customized according to different needs, so it is used in many industries.

[0003] When existing chemical fiber paper tubes are used in the chemical industry, they often come into contact with corrosive media such as acids and alkalis, which may cause damage to the chemical fiber paper tubes and make them difficult to meet the requirements of long-term use. Therefore, we propose a corrosion-resistant chemical fiber paper tube. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies. When used in the chemical industry, existing chemical fiber paper tubes often come into contact with corrosive media such as acids and alkalis, which may damage the chemical fiber paper tubes and make them difficult to meet the requirements for long-term use.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A corrosion-resistant chemical fiber paper tube includes an inner paper tube, a core paper tube is sleeved around the inner paper tube, an outer paper tube is sleeved around the core paper tube, a first coating is provided on the outer side wall of the outer paper tube, a second coating is provided on the outer side of the first coating, and an annular reinforcing frame is fixed on the inner side wall of the inner paper tube near both ends.

[0007] As a preferred embodiment of this utility model, the inner paper tube is made of high-strength kraft paper.

[0008] The technical effect of adopting the above-mentioned further solution is that the inner paper tube structure made of high-strength kraft paper is more stable, has higher mechanical strength and toughness, and can withstand greater tensile and compressive forces.

[0009] As a preferred embodiment of this utility model, the core paper tube includes an inner paper layer, an inner cotton layer is sleeved around the inner paper layer, and a mesh layer is sleeved around the inner cotton layer.

[0010] The technical effect of adopting the above-mentioned further solution is that the overall strength of the paper tube can be increased through the design of the inner paper layer, inner cotton layer and grid layer.

[0011] As a preferred embodiment of this utility model, an outer cotton layer is provided around the periphery of the grid layer, and an outer paper layer is provided outside the outer cotton layer.

[0012] The technical effect of adopting the above-mentioned further solution is that, through the design of the outer cotton layer and the outer paper layer, the core paper tube can provide good support for the outer paper tube, so as to prevent the outer paper tube from deforming due to pressure.

[0013] In a preferred embodiment of this utility model, the inner paper tube, the core paper tube, and the outer paper tube are all fixed by a hot-pressing composite process.

[0014] The technical effect of adopting the above-mentioned further solution is that the connection between the inner paper tube, the core paper tube and the outer paper tube, which are fixed by the hot-pressing composite process, can be more stable and will not separate or fall off.

[0015] As a preferred embodiment of this utility model, the first coating is made of polytetrafluoroethylene.

[0016] The technical effect of adopting the above-mentioned further solution is that the first coating made of polytetrafluoroethylene can not only remain stable at extreme temperatures, but also resist the erosion of corrosive substances such as strong acids, strong alkalis, and aqua regia. It can even remain unchanged after boiling in hydrofluoric acid, aqua regia, fuming sulfuric acid, or sodium hydroxide, thus exhibiting good corrosion resistance.

[0017] As a preferred embodiment of this utility model, the second coating is made of epoxy resin.

[0018] The technical effect of adopting the above-mentioned further solution is that the second coating made of epoxy resin contains stable benzene rings, which have good resistance to acids, alkalis and organic solvents. It not only has high hardness, which can effectively resist wear and scratches and ensure the durability of the coating, but also can effectively resist moisture or water erosion and ensure long-term stability.

[0019] As a preferred embodiment of this utility model, the annular reinforcing frame is integrally cast from aluminum alloy, the annular reinforcing frame is adapted to the inner paper tube, and the annular reinforcing frame and the inner paper tube are fixed together by adhesive.

[0020] The technical advantages of adopting the above-mentioned further solution are: the ring-shaped reinforcing frame, which is integrally cast from aluminum alloy, is not only lightweight but also has sufficient strength to provide good support, and the fixing method of adhesive bonding can also effectively prevent the ring-shaped reinforcing frame from falling off.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] In this invention, the design of the inner paper tube, the core paper tube, the outer paper tube, the first coating, the second coating, and the annular reinforcing frame greatly improves the corrosion resistance of the chemical fiber paper tube during use, thus significantly extending its service life in the chemical industry and meeting the needs of long-term use. Attached Figure Description

[0023] Figure 1 A schematic diagram of the overall structure of a corrosion-resistant chemical fiber paper tube provided by this utility model;

[0024] Figure 2 A side anatomical view of the core paper tube structure of a corrosion-resistant chemical fiber paper tube provided by this utility model;

[0025] Figure 3 A side anatomical view of the first coating structure of a corrosion-resistant chemical fiber paper tube provided by this utility model;

[0026] Figure 4 A side anatomical view of the annular reinforcing frame structure of a corrosion-resistant chemical fiber paper tube provided by this utility model.

[0027] Legend: 1. Inner paper tube; 2. Core paper tube; 201. Inner paper layer; 202. Inner cotton layer; 203. Grid layer; 204. Outer cotton layer; 205. Outer paper layer; 3. Outer paper tube; 301. First coating; 302. Second coating; 4. Circular reinforcing frame. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0029] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0030] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] Example 1

[0033] like Figure 1-4 As shown, this utility model provides a technical solution: a corrosion-resistant chemical fiber paper tube, including an inner paper tube 1, a core paper tube 2 sleeved around the inner paper tube 1, the core paper tube 2 can support the outer paper tube 3 to prevent the outer paper tube 3 from separating from the inner paper tube 1, an outer paper tube 3 sleeved around the core paper tube 2, the outer surface of the outer paper tube 3 is used for spraying a coating, a first coating 301 is provided on the outer side wall of the outer paper tube 3, and a second coating 302 is provided on the outer side of the first coating 301. The first coating 301 and the second coating 302 can effectively improve the corrosion resistance of the outer paper tube 3 and greatly increase the service life of the chemical fiber paper tube. Annular reinforcing frames 4 are fixed on the inner side wall of the inner paper tube 1 near both ends. The annular reinforcing frames 4 can support the inner paper tube 1, the core paper tube 2 and the outer paper tube 3 from the inside of the inner paper tube 1 to prevent the outer paper tube 3 from deforming.

[0034] Example 2

[0035] like Figure 1-4 As shown, the inner paper tube 1 is made of high-strength kraft paper. The inner paper tube 1 made of high-strength kraft paper has a relatively stable structure, high mechanical strength and toughness, and can withstand greater tensile and compressive forces.

[0036] The core paper tube 2 includes an inner paper layer 201, an inner cotton layer 202 is sleeved around the inner paper layer 201, and a mesh layer 203 is sleeved around the inner cotton layer 202. Through the design of the inner paper layer 201, the inner cotton layer 202 and the mesh layer 203, the overall strength of the paper tube can be higher.

[0037] The outer cotton layer 204 is sleeved around the mesh layer 203, and the outer paper layer 205 is sleeved on the outside of the outer cotton layer 204. Through the design of the outer cotton layer 204 and the outer paper layer 205, the core paper tube 2 can play a good supporting role for the outer paper tube 3 to prevent the outer paper tube 3 from deforming due to pressure.

[0038] The inner paper tube 1, the middle core paper tube 2, and the outer paper tube 3 are all fixed by a hot-pressing composite process. The connection between the inner paper tube 1, the middle core paper tube 2, and the outer paper tube 3 fixed by the hot-pressing composite process is more stable and will not separate or fall off.

[0039] The first coating 301 is made of polytetrafluoroethylene (PTFE). The first coating 301 made of PTFE can not only remain stable at extreme temperatures, but also resist the erosion of corrosive substances such as strong acids, strong alkalis, and aqua regia. It can even remain unchanged after boiling in hydrofluoric acid, aqua regia, fuming sulfuric acid, or sodium hydroxide, thus exhibiting good corrosion resistance.

[0040] The second coating 302 is made of epoxy resin. The second coating 302 made of epoxy resin contains stable benzene rings and has good resistance to acids, alkalis and organic solvents. It not only has high hardness, which can effectively resist wear and scratches and ensure the durability of the coating, but also can effectively resist moisture or water erosion and ensure long-term stability.

[0041] The annular reinforcing frame 4 is integrally cast from aluminum alloy. The annular reinforcing frame 4 is compatible with the inner paper tube 1. The annular reinforcing frame 4 and the inner paper tube 1 are fixed together by adhesive. The annular reinforcing frame 4, which is integrally cast from aluminum alloy, is not only lightweight but also has high strength, so it can play a good supporting role. The fixing method of adhesive can also effectively prevent the annular reinforcing frame 4 from falling off.

[0042] The working process of this utility model is as follows: When using a corrosion-resistant chemical fiber paper tube, the core paper tube 2 and the annular reinforcing frame 4 firstly support the outer paper tube 3 to prevent the outer paper tube 3 from being deformed by pressure, which would cause the inner paper tube 1, core paper tube 2, and outer paper tube 3 to separate. This effectively prevents corrosion between the layers. The first coating 301, made of polytetrafluoroethylene, can resist the erosion of corrosive substances and has good corrosion resistance. The second coating 302, made of epoxy resin, has high hardness and can effectively resist wear and scratches, ensuring the durability of the coating. It can also effectively resist moisture or water erosion, ensuring long-term stability. Compared with existing chemical fiber paper tubes, this greatly improves the corrosion resistance of the chemical fiber paper tube, significantly extending its service life in the chemical industry and meeting the needs of long-term use.

[0043] 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 corrosion resistant synthetic paper tube comprising an inner paper tube (1), characterized in that: The outer periphery of the inner paper tube (1) is sleeved with a middle core paper tube (2), the outer periphery of the middle core paper tube (2) is sleeved with an outer paper tube (3), a first coating layer (301) is arranged on the outer side wall of the outer paper tube (3), the outer side of the first coating layer (301) is provided with a second coating layer (302), and the inner side wall of the inner paper tube (1) is fixed with annular reinforcing frames (4) near both ends.

2. A corrosion resistant composite paper tube according to claim 1, characterized in that: The inner paper tube (1) is made of high-strength kraft paper.

3. A corrosion resistant composite paper tube according to claim 1, characterized in that: The middle core paper tube (2) comprises an inner paper layer (201), the outer periphery of the inner paper layer (201) is sleeved with an inner cotton layer (202), and the outer periphery of the inner cotton layer (202) is sleeved with a grid layer (203).

4. A corrosion resistant composite paper tube according to claim 3, wherein: The outer periphery of the grid layer (203) is sleeved with an outer cotton layer (204), and the outer side of the outer cotton layer (204) is sleeved with an outer paper layer (205).

5. A corrosion resistant composite paper tube according to claim 1, wherein: The inner paper tube (1), the middle core paper tube (2) and the outer paper tube (3) are fixed through a hot-pressing composite process.

6. A corrosion resistant composite paper tube according to claim 1, wherein: The first coating layer (301) is made of polytetrafluoroethylene material.

7. A corrosion resistant composite paper tube according to claim 1, wherein: The second coating layer (302) is made of epoxy resin material.

8. A corrosion resistant composite paper tube according to claim 1, wherein: The annular reinforcing frame (4) is integrally cast formed by aluminum alloy material, the annular reinforcing frame (4) is matched with the inner paper tube (1), and the annular reinforcing frame (4) and the inner paper tube (1) are fixed through adhesive bonding.

Images