Feeding spray pipe

Abstract

The utility model discloses a feeding spray pipe which comprises a feeding pipe, a feeding flange is arranged at the upper end of the feeding pipe, a mounting flange is arranged below the feeding flange, and anti-corrosion layers are laid on the inner wall and the outer wall of the feeding pipe. The outer wall of the feeding pipe is sleeved with a sleeve, and the outer wall of the sleeve is provided with a turned-over edge located below the mounting flange. An anti-corrosion layer laid on the outer wall of the feeding pipe is arranged between the feeding pipe and the sleeve; and a nozzle detachably connected with the sleeve is arranged at the lower end of the feeding pipe. The spray pipe can cope with various severe working conditions, and has the advantages that the manufacturing cost is relatively low, and quick-wear parts are convenient to replace.

Description

Technical Field

[0001] The utility model belongs to the technical field of chemical and metallurgical equipment, and particularly relates to a nozzle for adding various phase materials into a reaction container. Background Art

[0002] Some reaction vessels in the chemical and metallurgical industries operate in harsh conditions. Common feeding pipes made of a single material cannot simultaneously solve the comprehensive working conditions of corrosion, wear, high temperature and high pressure. Problems such as excessive wear or corrosion rate of the feeding pipes and high maintenance and replacement costs often occur. Utility Model Content

[0003] The utility model aims to provide a feeding nozzle to solve the technical problems of the existing feeding pipes having too fast abrasion or corrosion rate, and being complicated and difficult to maintain and replace.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A feed nozzle comprises a feed pipe, wherein a feed flange is arranged at the upper end of the feed pipe, a mounting flange is arranged below the feed flange, and an anti-corrosion layer is laid on the inner wall and the outer wall of the feed pipe; a sleeve is sleeved on the outer wall of the feed pipe, and a flange located below the mounting flange is arranged on the outer wall of the sleeve; the anti-corrosion layer laid on the outer wall of the feed pipe is arranged between the feed pipe and the sleeve; and a nozzle detachably connected to the sleeve is arranged at the lower end of the feed pipe.

[0006] Therefore, by arranging a sleeve outside the feed pipe, the sleeve can protect the feed pipe from damage during operation, and the flange on the sleeve can further prevent damage to the feed pipe under the mounting flange, while protecting the mounting flange; the sleeve and nozzle need to be replaced frequently as wearing parts, and the sleeve and sleeve of the feed nozzle are arranged on the feed pipe, and the nozzle and the sleeve are detachably connected, making it easier to disassemble the sleeve and the nozzle when they need to be replaced.

[0007] According to the embodiments of the present invention, the present invention can be further optimized. The following is the technical solution formed after optimization:

[0008] In order to better protect the feed pipe, in a specific embodiment, the anti-corrosion layer extends downward from the upper end of the feed flange along the length direction of the feed pipe to the bottom end of the inner wall of the feed pipe and transitions outward along the bottom surface of the feed pipe to the outer wall of the feed pipe, and then extends upward along the length direction of the feed pipe to the bottom surface of the mounting flange.

[0009] In order to achieve better protection of the sleeve, and at the same time protect the nozzle and facilitate disassembly of the nozzle, in a specific embodiment, the lower end of the sleeve protrudes from the lower port of the feed pipe, the nozzle is arranged on the inner side of the sleeve and is threadedly connected to the sleeve; the lower end of the nozzle extends to the outside of the sleeve.

[0010] The main working area of ​​the feed pipe is the part below the mounting flange. Therefore, in a specific embodiment, the sleeve is arranged below the mounting flange, and the upper end of the sleeve is provided with a flange located below the mounting flange.

[0011] In a specific embodiment, a first sealing gasket is arranged between the mounting flange and the flange, and the first sealing gasket is arranged below the anti-corrosion layer.

[0012] In a specific embodiment, a filling layer is arranged between the feed pipe and the sleeve, and the filling layer is arranged on the outside of the anti-corrosion layer.

[0013] In a specific embodiment, a second sealing gasket is provided between the lower end of the feed pipe and the nozzle, and the outer wall of the second sealing gasket extends to the inner wall of the sleeve, and the inner wall of the second sealing gasket extends to the inner wall of the feed pipe.

[0014] In a specific embodiment, the sleeve and the nozzle may be made of metal or wear-resistant non-metallic material; the filling layer may be made of flexible non-metallic material; and the anti-corrosion layer may be made of corrosion-resistant non-metallic material.

[0015] Compared with the prior art, the beneficial effect of the utility model is that the feed nozzle of the utility model, through a reasonable combination form, exerts the performance advantages of the metal pipe structure, non-metallic corrosion-resistant lining, wear-resistant sleeve, wear-resistant nozzle and other components, so that the combined nozzle can meet the complex working conditions of high temperature, high pressure, strong corrosion and high wear. In addition, the wear-resistant sleeve, nozzle and other vulnerable parts in the utility model are detachable structures, which are easy to replace during use. In this way, the internal corrosion-resistant layer is protected and the maintenance and replacement cost of the nozzle is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model.

[0017] In the figure

[0018] 1-feed pipe; 11-feed flange; 12-mounting flange; 13-anti-corrosion layer; 2-casing; 21-flange; 3-nozzle; 4-first sealing gasket; 5-filling layer; 6-second sealing gasket. DETAILED DESCRIPTION

[0019] The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict. For the convenience of description, if the words "upper", "lower", "left" and "right" appear in the following text, they only indicate that the upper, lower, left and right directions are consistent with the drawings themselves, and do not limit the structure.

[0020] like Figure 1 As shown, the feed nozzle of this embodiment includes a feed pipe 1, a feed flange 11 is provided at the upper end of the feed pipe 1, a mounting flange 12 is provided below the feed flange 11, and the inner and outer walls of the feed pipe 1 are covered with an anti-corrosion layer 13; the anti-corrosion layer 13 extends downward from the upper end of the feed flange 11 along the length direction of the feed pipe 1 to the bottom end of the inner wall of the feed pipe 1 and transitions outward along the bottom surface of the feed pipe 1 to the outer wall of the feed pipe 1, and then extends upward along the length direction of the feed pipe 1 to the bottom surface of the mounting flange 12.

[0021] The outer wall of the feed pipe 1 is sleeved with a sleeve 2, which is a wear-resistant sleeve. The sleeve 2 can be made of metal or wear-resistant non-metallic material. The sleeve 2 is arranged below the mounting flange 12, and the upper end of the sleeve 2 is provided with the flange 21 located below the mounting flange 12. The anti-corrosion layer 13 laid on the outer wall of the feed pipe 1 is arranged between the feed pipe 1 and the sleeve 2; the lower end of the sleeve 2 protrudes from the lower end of the feed pipe 1, and the nozzle 3 is arranged inside the sleeve 2 and is threadedly connected to the sleeve 2; the lower end of the nozzle 3 extends to the outside of the sleeve 2, and the nozzle 3 extends longer than the feed pipe 1.

[0022] The mounting flange 12 is connected to the corresponding mounting flange on the container body; the feed flange 11 is connected to the flange at the end of the material conveying process pipeline; during operation, the material enters the container through the process conveying pipeline along the feed flange 11, the feed pipe 1, and the nozzle 3; the anti-corrosion layer 13 in the feed pipe 1 is mainly used to resist the corrosion of the added materials; the sleeve 2 and the nozzle 3 are mainly used as wearing parts to resist the corrosion and wear of the medium inside the container. Through this reasonable combination form, the performance advantages of the metal pipe structure, non-metallic corrosion-resistant lining, wear-resistant sleeve, wear-resistant nozzle and other components are brought into play, so that the combined nozzle meets the complex working conditions of high temperature, high pressure, strong corrosion and high wear.

[0023] A first sealing gasket 4 is arranged between the mounting flange 12 and the flange 21, and the first sealing gasket 4 is arranged below the anti-corrosion layer 13; a filling layer 5 is arranged between the feed pipe 1 and the sleeve 2, and the filling layer 5 is arranged outside the anti-corrosion layer 13; a second sealing gasket 6 is arranged between the lower end of the feed pipe 1 and the nozzle 3, and the outer wall of the second sealing gasket 6 extends to the inner wall of the sleeve 2, and the inner wall of the second sealing gasket 6 extends to the inner wall of the feed pipe 1. The sealing performance of the feed nozzle is improved by arranging the sealing gasket and the filling layer.

[0024] The sleeve and the nozzle may be made of metal or wear-resistant non-metallic material; the filling layer may be made of flexible non-metallic material; and the anti-corrosion layer may be made of corrosion-resistant non-metallic material.

[0025] The feed nozzle of this embodiment, through a reasonable combination form, gives full play to the performance advantages of the metal pipe structure, non-metallic corrosion-resistant lining, wear-resistant sleeve, wear-resistant nozzle and other components, so that the combined nozzle can meet the complex working conditions of high temperature, high pressure, strong corrosion and high wear. In addition, the wear-resistant sleeve, nozzle and other wearing parts in the utility model are detachable structures, which are easy to replace during use. In this way, the internal corrosion-resistant layer is protected and the maintenance and replacement cost of the nozzle is reduced. The beneficial effects of the utility model are: the nozzle can cope with various harsh working conditions, and has the advantages of relatively low manufacturing cost, easy replacement of wearing parts, and long service life.

[0026] The contents explained in the above embodiments should be understood as these embodiments are only used to more clearly illustrate the present invention, and are not used to limit the scope of the present invention. After reading the present invention, various equivalent forms of modifications to the present invention by those skilled in the art fall within the scope defined by the claims attached to this application.

Claims

1. A feed nozzle, comprising a feed pipe (1), wherein a feed flange (11) is provided at the upper end of the feed pipe (1), and a mounting flange (12) is provided below the feed flange (11), characterized in that: The inner wall and the outer wall of the feed pipe (1) are both provided with an anti-corrosion layer (13); a sleeve (2) is sleeved on the outer wall of the feed pipe (1), and a flange (21) is provided on the outer wall of the sleeve (2) and is located below the mounting flange (12); the anti-corrosion layer (13) provided on the outer wall of the feed pipe (1) is provided between the feed pipe (1) and the sleeve (2); and a nozzle (3) detachably connected to the sleeve (2) is provided at the lower end of the feed pipe (1).

2. The feed nozzle according to claim 1, characterized in that: The anti-corrosion layer (13) extends downward from the upper end of the feed flange (11) along the length direction of the feed pipe (1) to the bottom end of the inner wall of the feed pipe (1) and transitions outward along the bottom surface of the feed pipe (1) to the outer wall of the feed pipe (1), and then extends upward along the length direction of the feed pipe (1) to the bottom surface of the mounting flange (12).

3. The feed nozzle according to claim 1, characterized in that: The lower end of the sleeve (2) protrudes from the lower end of the feed pipe (1); the nozzle (3) is arranged inside the sleeve (2) and is threadedly connected to the sleeve (2); the lower end of the nozzle (3) extends to the outside of the sleeve (2).

4. The feed nozzle according to claim 1, characterized in that: The sleeve (2) is arranged below the mounting flange (12), and the upper end of the sleeve (2) is provided with the flange (21) located below the mounting flange (12).

5. The feed nozzle according to any one of claims 1 to 4, characterized in that: A first sealing gasket (4) is arranged between the mounting flange (12) and the flange (21), and the first sealing gasket (4) is arranged below the anti-corrosion layer (13).

6. The feed nozzle according to any one of claims 1 to 4, characterized in that: A filling layer (5) is arranged between the feed pipe (1) and the sleeve (2), and the filling layer (5) is arranged on the outside of the anti-corrosion layer (13).

7. The feed nozzle according to any one of claims 1 to 4, characterized in that: A second sealing gasket (6) is provided between the lower end of the feed pipe (1) and the nozzle (3), the outer wall of the second sealing gasket (6) extending to the inner wall of the sleeve (2), and the inner wall of the second sealing gasket (6) extending to the inner wall of the feed pipe (1).

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