Bow blowing rubber pipe with lining layer embedded ring

Abstract

The bow blowing rubber pipe comprises a group of rubber pipelines and flanges which are arranged at the two ends of the rubber pipelines and provided with connecting pieces, each rubber pipeline sequentially comprises a lining layer, a reinforcing layer wound outside the lining layer and an outer covering layer attached to the outside of the reinforcing layer in a covering mode from inside to outside, and a part of the lining layer in the length direction is made of abrasion-resistant rubber. The lining layer consists of wear-resistant rubber and a wear-resistant steel ring embedded in the wear-resistant rubber; the reinforcing layer is composed of a rubber-coated cord fabric; and the outer coating layer is made of a wear-resistant and aging-resistant rubber material. The high-pressure-bearing wear-resisting spiral conveyor has high pressure-bearing performance, deflection-resisting performance and wear-resisting performance, and is suitable for conveying materials containing hard large particles.

Description

Technical Field

[0001] This utility model relates to a material conveying hose for waterborne construction such as channel dredging, artificial land reclamation, port construction, and seabed mining, specifically a bow blown hose with an embedded ring inner lining. Background Technology

[0002] The bow-blowing pipeline, used in conjunction with a large trailing suction hopper dredger, is suitable for operations where the dredging and blowing sites are far apart. During blowing, the dredger connects to the bow-blowing pipeline, and a pressure pump delivers the sediment to a specific location via the pipeline. Because the first section of the bow-blowing pipeline is close to the dredger, if the transported material contains large, hard particles, the strong pressure generated by the dredger causes these particles to move at high speed, easily causing rapid wear on the near-ship end of the first section. Conversely, the deformation of the hose at the far-ship end reduces the flow velocity, resulting in less wear. However, the far-ship end connects to the second, longer section of hose, which is often in a bent position during operation. If the inner lining is embedded with wear-resistant steel rings, the pipe cannot bend normally, affecting the smooth operation of the pipeline. Summary of the Invention

[0003] To overcome the above shortcomings, the purpose of this utility model is to provide a bow blown rubber hose with an embedded ring in the inner lining. The ring is embedded in a portion of the inner lining, which gives the bow blown rubber hose good wear resistance near the ship and good flexibility at the far end, making it suitable for connection with other rubber hoses.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A bow blown rubber hose with an inner lining and embedded rings includes a rubber pipe and flanges with connectors at both ends of the rubber pipe. The rubber pipe includes, from the inside out, an inner lining, a reinforcing layer wrapped around the inner lining, and an outer covering layer applied to the reinforcing layer. A set of wear-resistant steel rings is embedded in the inner lining near the ship's end.

[0006] Furthermore, the total length of the rubber pipe is 11.8m, and the inner lining is made of wear-resistant rubber laid along the entire length of the pipe. Wear-resistant steel rings are embedded in the wear-resistant rubber within the first 6m length near the ship's end, while the remaining 5.8m length of the inner lining does not contain wear-resistant steel rings. Each wear-resistant steel ring is 25mm wide and 30mm thick.

[0007] Furthermore, the wear-resistant steel ring has a nearly rectangular cross-section with arc-shaped corners, and the distance between two adjacent rings is 60-80mm.

[0008] Furthermore, the flange with connector includes a flange, connector, and 2-3 retaining rings fixed to the outer circumference of the connector.

[0009] Furthermore, 2-4 lifting lugs are welded around the circumference at the junction of the flange and the connector.

[0010] The beneficial effects of this utility model are:

[0011] This invention relates to the first section of a bow blown rubber hose, with a length of 11.8m. A wear-resistant steel ring is incorporated into the inner lining along a portion of the length. The end near the ship exhibits excellent wear resistance, capable of withstanding the scouring of large, hard particles flowing at high speeds; the end further from the ship possesses good flexibility, suitable for connection to other rubber hoses. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0013] A bow blown rubber hose with an inner liner and embedded rings includes a set of rubber pipes 1 and flanges 2 with connectors at both ends of the rubber pipes. The rubber pipes, from the inside out, sequentially include an inner liner 3, a reinforcing layer 4 wound around the inner liner, and an outer covering layer 5 wound around the reinforcing layer. A set of wear-resistant steel rings 32 are embedded in the inner liner 3 near the ship's end. The reinforcing layer 4 is composed of rubber-coated fabric; the outer covering layer 5 is composed of wear-resistant and aging-resistant rubber. The inner liner 3 consists of wear-resistant rubber 31 and wear-resistant steel rings 32 embedded in the wear-resistant rubber.

[0014] This invention incorporates wear-resistant steel rings within a portion of the inner lining. The total length of the rubber pipe is 11.8m. The inner lining, composed of wear-resistant rubber 31, is laid across the entire pipe length. A set of wear-resistant steel rings 31 is embedded within the wear-resistant rubber of the inner lining for 6m near the dredger end. The remaining 5.8m of the inner lining does not contain wear-resistant steel rings. Each wear-resistant steel ring is 25mm wide and 30mm thick.

[0015] The wear-resistant steel ring has a nearly rectangular cross-section with rounded corners. The distance between two adjacent wear-resistant steel rings is 60-80mm.

[0016] The flange 2 with connecting parts includes a flange 21, a connecting part 22, and 2-3 retaining rings 23 fixed on the outer circumference of the connecting part. 2-4 lifting lugs 24 are welded along the circumference at the junction of the flange and the connecting part.

[0017] This invention features a wear-resistant steel ring in the inner lining of the section near the ship's end. The near-ship end has excellent wear resistance and can withstand the scouring of large, hard particles flowing at high speeds. The far-ship end has excellent flexibility and is suitable for connection with other hoses.

Claims

1. A bow rubber lined pipe comprising a rubber pipe (1) and flanges (2) with connections arranged at both ends of the rubber pipe (1), characterized in that: The rubber pipe (1) comprises, from inside to outside, an inner liner (3), a reinforcing layer (4) wound outside the inner liner (3), and an outer cover (5) attached to the reinforcing layer (4), and a set of wear-resistant steel rings (32) are embedded in the inner liner (3) only at the near-ship end.

2. The inner liner insert ring bowser pipe according to claim 1, characterized in that: The total length of the rubber pipe (1) is 11.8 m, the inner liner (3) is paved with wear-resistant rubber (31) throughout the pipe length, and wear-resistant steel rings (32) are embedded in the wear-resistant rubber (31) of the 6 m length at the near-ship end.

3. The inner liner insert ring bowser of claim 1, wherein: The width of a single wear-resistant steel ring (32) is 25 mm, and the thickness is 30 mm.

4. The inner liner insert ring bowser of claim 1, wherein: The wear-resistant steel ring (32) is nearly rectangular in cross-section, and the corner parts are arc-shaped.

5. The inner liner insert ring bowser of claim 1, wherein: The distance between two adjacent wear-resistant steel rings (32) is 60-80 mm.

6. The inner liner insert ring bowser of claim 1, wherein: The flange (2) with a connecting piece comprises a flange plate (21), a connecting piece (22), and a stop ring (23) fixed to the outer circumference of the connecting piece (22).

7. The inner liner insert ring bowfed tube of claim 1, wherein: A lifting lug (24) is welded circumferentially at the joint of the flange plate (21) and the connecting piece (22).

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