Ceramic lining rubber hose for conveying special medium

Abstract

The utility model relates to the technical field of hoses, and discloses a ceramic lining rubber hose for conveying special media, which comprises a connecting flange, one end of the connecting flange is provided with an annular groove matched with the end part of a hose body, and the inner wall of the annular groove is provided with wavy bulges. The end of the hose body is arranged at one end of the connecting flange in a sleeving mode and embedded into the annular groove through a fastener. According to the ceramic lining rubber hose for conveying the special medium, the medium is conveyed through the ceramic lining layer, and the ceramic lining layer resists corrosion and abrasion of the medium; the buffer bonding layer buffers medium impact force and prevents the ceramic lining layer from falling off; the rubber layer provides good flexibility and sealing performance; the reinforcing layer guarantees the strength and the pressure resistance of the hose; the wear-resistant layer protects the outer surface of the hose body; the hose body can be conveniently connected with other equipment through the connecting flange, the spiral flow guide groove guides media to form spiral flow, scouring of the media to the inner wall is reduced, and the anti-scouring performance of the hose body is improved.

Description

Technical Field

[0001] This utility model relates to the field of hose technology, and in particular to a ceramic-lined rubber hose for conveying special media. Background Technology

[0002] In industrial production, it is often necessary to transport media with special properties such as corrosiveness, high abrasiveness, or high temperature, including chemical raw materials, slurries, and high-temperature liquids. Traditional rubber hoses are easily corroded and worn when transporting these special media, leading to shortened hose lifespan and even leaks. This not only causes economic losses but may also pose safety hazards. Although some ceramic-lined rubber hoses are available on the market, the bonding strength between the ceramic lining and the rubber layer is not strong enough, making them prone to detachment. Furthermore, the high-speed flow of the media within the pipe causes strong erosion of the inner wall, accelerating pipe wear and further reducing the hose's lifespan. Utility Model Content

[0003] The main objective of this invention is to provide a ceramic-lined rubber hose for conveying special media, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a ceramic-lined rubber hose for conveying special media, comprising a connecting flange, one end of which is provided with an annular groove that mates with the end of the hose body, the inner wall of which is provided with a wavy protrusion, the end of the hose body being sleeved on one end of the connecting flange and embedded in the annular groove by fasteners, and the inner wall of the hose body being in close contact with the wavy protrusion, the other side of the connecting flange being provided with a connecting hole and an anti-corrosion sealing gasket, the connecting holes being arranged in a circumferential array, the number being 6-8, and the connecting holes being provided with anti-rust threads;

[0005] The hose body includes a ceramic inner liner, a buffer bonding layer, a rubber layer, a reinforcing layer, and a wear-resistant layer. The ceramic inner liner is disposed on the inner wall of the rubber layer through the buffer bonding layer, the reinforcing layer is disposed on the outer wall of the rubber layer, and the wear-resistant layer is disposed on the outer wall of the reinforcing layer.

[0006] Preferably, the inner wall of the ceramic liner is provided with a spiral guide groove, the depth of which is 0.5mm-2mm and the pitch is 10mm-30mm.

[0007] Preferably, the ceramic liner is made of zirconia ceramic material with a thickness of 1mm-3mm.

[0008] Preferably, the buffer adhesive layer is composed of a highly elastic acrylate adhesive and has a thickness of 0.5mm-1.5mm.

[0009] Preferably, the rubber layer is made of hydrogenated nitrile rubber with a thickness of 6mm-12mm.

[0010] Preferably, the wear-resistant layer is formed by coating a mixture of polytetrafluoroethylene coating and nano-silica particles, with a thickness of 0.3mm-0.8mm.

[0011] Preferably, the depth of the annular groove is 10-15mm, the height of the wavy protrusion is 3-5mm, and the crest spacing is 8-12mm.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] During use, special media are transported through a ceramic liner that resists corrosion and abrasion. A buffer bonding layer cushions the impact of the media and prevents the ceramic liner from falling off. A rubber layer provides good flexibility and sealing. A reinforcing layer ensures the strength and pressure resistance of the hose. A wear-resistant layer protects the outer surface of the hose body. A connecting flange facilitates connection of the hose body to other equipment. A spiral guide groove guides the media to form a spiral flow, reducing the erosion of the inner wall by the media and improving the erosion resistance of the hose body. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a ceramic-lined rubber hose for conveying special media according to the present invention;

[0015] Figure 2 This is a schematic diagram of the hose body structure of a ceramic-lined rubber hose for conveying special media according to this utility model.

[0016] In the figure: 1. Hose body; 101. Ceramic inner lining layer; 102. Buffer bonding layer; 103. Rubber layer; 104. Reinforcing layer; 105. Wear-resistant layer; 106. Spiral guide groove; 2. Connecting flange; 3. Annular groove; 4. Connecting hole; 5. Anti-corrosion sealing gasket. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0018] like Figure 1-2As shown, a ceramic-lined rubber hose for conveying special media includes a connecting flange 2. One end of the connecting flange 2 is provided with an annular groove 3 that mates with the end of the hose body 1. The inner wall of the annular groove 3 is provided with a wavy protrusion. The end of the hose body 1 is sleeved on one end of the connecting flange 2 and embedded in the annular groove 3 by fasteners. The inner wall of the hose body 1 is in close contact with the wavy protrusion. The other side of the connecting flange 2 is provided with a connecting hole 4 and an anti-corrosion sealing gasket 5. The connecting holes 4 are arranged in a circumferential array, with a quantity of 6-8, and the connecting holes 4 are provided with anti-rust threads.

[0019] The hose body 1 includes a ceramic inner liner 101, a buffer bonding layer 102, a rubber layer 103, a reinforcing layer 104, and a wear-resistant layer 105. The ceramic inner liner 101 is disposed on the inner wall of the rubber layer 103 through the buffer bonding layer 102. The reinforcing layer 104 is disposed on the outer wall of the rubber layer 103, and the wear-resistant layer 105 is disposed on the outer wall of the reinforcing layer 104. The reinforcing layer 104 is a composite braided layer of aramid fiber and rubber. By utilizing the high strength and high toughness of aramid fiber, the overall strength and pressure resistance of the hose body 1 are improved without affecting its flexibility.

[0020] The inner wall of the ceramic liner 101 is provided with a spiral guide groove 106. The depth of the spiral guide groove 106 is 0.5mm-2mm and the pitch is 10mm-30mm. It guides the medium to form a spiral flow, thereby reducing the direct scouring of the medium on the inner wall.

[0021] The ceramic lining 101 is made of zirconia ceramic with a thickness of 1mm-3mm. Due to the excellent chemical stability and wear resistance of zirconia ceramic, it can effectively resist the corrosion and wear of special media.

[0022] The buffer bonding layer 102 is made of a high-elasticity acrylic adhesive with a thickness of 0.5mm-1.5mm. It can not only achieve a firm bond between the ceramic liner 101 and the rubber layer 103, but also buffer the impact of the medium and prevent the ceramic liner 101 from cracking or falling off due to stress concentration.

[0023] The rubber layer 103 is made of hydrogenated nitrile rubber with a thickness of 6mm-12mm. The good corrosion resistance, wear resistance and high elasticity of hydrogenated nitrile rubber give the hose body 1 excellent flexibility, enabling it to adapt to complex installation environments and frequent bending operations.

[0024] The wear-resistant layer 105 is made of a mixture of polytetrafluoroethylene coating and nano-silica particles, with a thickness of 0.3mm-0.8mm. The chemical stability and low coefficient of friction of polytetrafluoroethylene, combined with the reinforcing effect of nano-silica particles, effectively protect the outer surface of the hose.

[0025] The depth of the annular groove 3 is 10-15mm, the height of the wavy protrusion is 3-5mm, and the crest spacing is 8-12mm, which enhances the sealing and firmness of the connection between the hose body 1 and the connecting flange 2.

[0026] Working principle:

[0027] During use, special media are conveyed through the ceramic liner 101, which resists corrosion and abrasion from the media. The buffer bonding layer 102 buffers the impact of the media and prevents the ceramic liner 101 from falling off. The rubber layer 103 provides good flexibility and sealing. The reinforcing layer 104 ensures the strength and pressure resistance of the hose. The wear-resistant layer 105 protects the outer surface of the hose body 1. The connecting flange 2 facilitates the connection of the hose body 1 with other equipment. The spiral guide groove 106 guides the media to form a spiral flow, reducing the scouring of the media on the inner wall and improving the scouring resistance of the hose body 1.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A ceramic-lined rubber hose for the transport of special media, comprising connecting flanges (2), characterized in that: The connecting flange (2) is provided with an annular groove (3) matched with the end of the hose body (1), the inner wall of the annular groove (3) is provided with a wave-shaped protrusion, the end of the hose body (1) is sleeved on one end of the connecting flange (2) and embedded in the annular groove (3) through a fastener, and the inner wall of the hose body (1) is in close contact with the wave-shaped protrusion, the other side of the connecting flange (2) is provided with a connecting hole (4) and a corrosion-resistant sealing gasket (5), the connecting hole (4) is arranged in a circumferential array, the number is 6-8, and the connecting hole (4) is provided with a rust-proof thread; The hose body (1) comprises a ceramic lining layer (101), a buffer bonding layer (102), a rubber layer (103), a reinforcing layer (104) and a wear-resistant layer (105), the ceramic lining layer (101) is arranged on the inner wall of the rubber layer (103) through the buffer bonding layer (102), the reinforcing layer (104) is arranged on the outer wall of the rubber layer (103), and the wear-resistant layer (105) is arranged on the outer wall of the reinforcing layer (104).

2. A ceramic lined rubber hose for the transport of special media according to claim 1, characterized in that: The inner wall of the ceramic lining layer (101) is provided with a spiral flow guide groove (106), the depth of the spiral flow guide groove (106) is 0.5mm-2mm, and the pitch is 10mm-30mm.

3. A ceramic lined rubber hose for the transport of special media according to claim 1, characterized in that: The ceramic lining layer (101) is made of zirconia ceramic material, and the thickness is 1mm-3mm.

4. A ceramic lined rubber hose for the transport of special media as claimed in claim 1, characterized in that: The buffer bonding layer (102) is composed of high-elasticity acrylate adhesive, and the thickness is 0.5mm-1.5mm.

5. A ceramic lined rubber hose for the transport of special media as claimed in claim 1, wherein: The rubber layer (103) is made of hydrogenated nitrile rubber, and the thickness is 6mm-12mm.

6. A ceramic lined rubber hose for the transport of special media as claimed in claim 1, characterized in that: The wear-resistant layer (105) is coated by mixing polytetrafluoroethylene coating and nano silicon dioxide particles, and the thickness is 0.3mm-0.8mm.

7. A ceramic lined rubber hose for the transport of special media as claimed in claim 1, wherein: The depth of the annular groove (3) is 10-15mm, the height of the wave-shaped protrusion is 3-5mm, and the peak distance is 8-12mm.

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