Anti-abrasion elbow for pneumatic ash conveying pipeline

Abstract

The utility model discloses an anti-abrasion elbow for a pneumatic ash conveying pipeline, which relates to the technical field of pneumatic ash conveying elbows and adopts the technical scheme that the anti-abrasion elbow comprises an elbow body, the elbow body comprises an elbow main body, an inlet connecting section and an outlet connecting section, and the inlet connecting section is fixedly mounted at the inlet end on the upper side of the elbow main body; an outlet connecting section is fixedly installed at the outlet end of the lower side of the elbow body, a wear-resisting layer is fixedly installed on the inner wall of the elbow body, the inner wall of the wear-resisting layer is matched with the inner walls of the inlet connecting section and the outlet connecting section, and a wear-resisting backpack is fixedly installed between the right side face and the front and rear side faces of the elbow body. A composite wear-resistant layer steel pipe is formed in the elbow body through the elbow body and the wear-resistant layer, the wear resistance is increased from the outer side through the wear-resistant backpack, and therefore the dual-protection effect is achieved, the wear resistance of the elbow body is improved, the bending radius of the elbow body is changed from 6D to 10D, and abrasion of materials to the bending outer side of the elbow is reduced by increasing the bending radius.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic ash conveying elbows, in particular to an anti-wear elbow for a pneumatic ash conveying pipeline. Background Art

[0002] Pneumatic conveying is an important part of clean production. It is a process that replaces traditional mechanical material conveying with sealed conveying pipelines. It is a modern logistics system suitable for bulk material conveying and will replace various traditional mechanical conveying with powerful advantages. Here we mainly introduce the dense phase pressure-feeding pneumatic conveying, which uses compressed air as power and uses air source to convey materials, and delivers materials to designated locations through various equipment, valves and sealed pipelines.

[0003] The system mainly consists of the following parts: air source system (air compressor), warehouse pump system, transportation pipeline, material storage system and control system.

[0004] In the prior art, the reasonable direction of the pipeline is determined mainly by the layout of on-site equipment and the plane layout of the plant, which requires the coordination of the corresponding pipeline and elbows. In order to make the pipeline in the plant flexible, 30°, 60°, 90° elbows and tees are mainly used to change the direction of the pipeline. The main characteristics of dense phase pneumatic conveying are as follows: the conveying distance is long, and the material can be conveyed to several places at the same time; the conveying volume of the material is large, which causes greater wear on the pipeline; the pipeline flow rate is large when discharging, and the elbow wear is large at the elbow. Utility Model Content

[0005] The utility model provides an anti-wear elbow for a pneumatic ash conveying pipeline to solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-wear elbow for a pneumatic ash conveying pipeline, comprising an elbow body, the elbow body comprising an elbow body, an inlet connecting section and an outlet connecting section, an inlet connecting section is fixedly installed on the upper inlet end of the elbow body, and an outlet connecting section is fixedly installed on the lower outlet end of the elbow body, the radius of the elbow body is 10D, and the wall thickness of the elbow body is 7mm, the inlet connecting section and the outlet connecting section are 300mm long, and the inlet connecting section and the outlet connecting section are gradually narrowed away from the outer surface of the elbow body, a wear-resistant layer is fixedly installed on the inner wall of the elbow body, and the inner wall of the wear-resistant layer matches the inner wall of the inlet connecting section and the outlet connecting section, and an anti-wear backpack is fixedly installed on the right side surface and between the front and rear side surfaces of the elbow body.

[0007] Furthermore, the wear-resistant layer is made of ceramic material, and the thickness of the wear-resistant layer is 6 mm.

[0008] Furthermore, the wear-resistant layer is provided with a 300 mm wear-resistant extension section toward the outlet connection section.

[0009] Furthermore, the anti-wear backpack is made of a 45° steel plate, and the thickness of the anti-wear backpack is 50 mm.

[0010] Compared with the prior art, the utility model provides an anti-wear elbow for pneumatic ash conveying pipeline, which has the following beneficial effects:

[0011] 1. The wear-resistant elbow for pneumatic ash conveying pipeline forms a composite wear-resistant steel pipe inside the elbow body by arranging the elbow body and the wear-resistant layer, thereby improving the wear resistance of the elbow body. The wear-resistant layer has the same inner diameter as the inlet connecting section and the outlet connecting section, and will not hinder material transportation. The wear resistance is increased from the outside by the anti-wear backpack, thereby achieving a double protection effect and improving the wear resistance of the elbow body.

[0012] 2. The pneumatic ash conveying pipeline uses an anti-wear elbow. The bending radius of the elbow body is changed from 6D to 10D. This change is also due to the rapid change in flow direction of the material, which increases the wear on the outer side of the elbow. By increasing the bending radius, the wear of the material on the outer side of the elbow is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a cross-sectional view of the utility model;

[0015] Figure 3 It is a cross-sectional view of the inlet connection section of the utility model.

[0016] In the figure: 1. elbow body; 101. elbow body; 102. inlet connection section; 103. outlet connection section; 2. wear-resistant layer; 3. anti-wear backpack. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-Figure 3The utility model discloses an anti-wear elbow for a pneumatic ash conveying pipeline, comprising an elbow body 1, wherein the elbow body 1 comprises an elbow body 101, an inlet connecting section 102 and an outlet connecting section 103, wherein the inlet connecting section 102 is fixedly mounted on the upper inlet end of the elbow body 101, and the outlet connecting section 103 is fixedly mounted on the lower outlet end of the elbow body 101, wherein the radius of the elbow body 101 is 10D, and the wall thickness of the elbow body 101 is 7mm, and the bending radius of the elbow body 101 changes from 6D to 10D. This change is also due to the increase in wear on the outer side of the elbow due to the rapid change in the flow direction of the material. By increasing the The bending radius reduces the wear of the material on the outer side of the elbow bend, and the thickness ensures that the elbow body 101 is not easily damaged. The inlet connection section 102 and the outlet connection section 103 are 300 mm long, and the inlet connection section 102 and the outlet connection section 103 gradually narrow away from the outer surface of the elbow body 101. The inlet connection section 102 and the outlet connection section 103 are convenient for connection to the conveying pipelines at both ends. A wear-resistant layer 2 is fixedly installed on the inner wall of the elbow body 101, and the inner wall of the wear-resistant layer 2 matches the inner wall of the inlet connection section 102 and the outlet connection section 103. An anti-wear backpack 3 is fixedly installed on the right side and between the front and rear sides of the elbow body 101.

[0019] Specifically, the wear-resistant layer 2 is made of ceramic material, and the thickness of the wear-resistant layer 2 is 6 mm.

[0020] In this embodiment, the wear-resistant layer 2 is made of ceramic to improve the wear resistance.

[0021] Specifically, the wear-resistant layer 2 is provided with a 300 mm wear-resistant extension section toward the outlet connecting section 103 .

[0022] In this embodiment, in order to reduce the wear of the elbow body 101 with a large material flow rate, a wear-resistant extension section is provided to improve the wear resistance of the elbow body 101.

[0023] Specifically, the anti-wear backpack 3 is made of a 45° steel plate, and the thickness of the anti-wear backpack 3 is 50 mm.

[0024] In this embodiment, since the material changes its flow direction rapidly at the elbow body 101, it will be worn more on the outer side of the elbow bend. Therefore, a 45° anti-wear backpack 3 is made of steel plate on the outer side of the elbow body 101 to improve the wear resistance of the outer side of the elbow body 101.

[0025] When in use, the wear-resistant layer 2 is fixedly installed in the elbow body 101, so that a composite wear-resistant layer steel pipe is formed inside the elbow body 1, thereby improving the wear resistance of the elbow body 1, and the wear-resistant layer 2 has the same inner diameter as the inlet connecting section 102 and the outlet connecting section 103, and will not hinder material transportation. Since the material changes its flow direction rapidly at the elbow body 101, it will cause greater wear on the outer side of the elbow bend. Therefore, a 45° wear-resistant backpack 3 is made of steel plate on the outer side of the elbow body 101 to improve the wear resistance of the outer side of the elbow body 101, thereby achieving a double protection effect and improving the wear resistance of the elbow body 1. The bending radius of the elbow body 101 is changed from 6D to 10D. This change is also due to the fact that the wear on the outer side of the elbow bend caused by the rapid change in flow direction of the material increases. By increasing the bending radius, the wear of the material on the outer side of the elbow body 101 is reduced. The above design is made for DN100 and 60° elbows.

[0026] To sum up, the pneumatic ash conveying pipeline uses a wear-resistant elbow, and the elbow body 101 and the wear-resistant layer 2 form a composite wear-resistant layer steel pipe inside the elbow body 1, thereby improving the wear resistance of the elbow body 1, and then the wear resistance of the elbow body 101 is increased from the outside through the anti-wear backpack 3, thereby achieving a double protection effect, improving the wear resistance of the elbow body 1, and the bending radius of the elbow body 101 is changed from 6D to 10D. This change is also due to the fact that the wear on the outer side of the bend of the elbow body 101 increases due to the rapid change in flow direction of the material, and the wear of the material on the outer side of the bend of the elbow body 101 is reduced by increasing the bending radius.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wear-resistant elbow for a pneumatic ash conveying pipeline, comprising an elbow body (1), characterized in that: The elbow body (1) comprises an elbow body (101), an inlet connecting section (102) and an outlet connecting section (103); the inlet connecting section (102) is fixedly mounted on the upper inlet end of the elbow body (101); the outlet connecting section (103) is fixedly mounted on the lower outlet end of the elbow body (101); the radius of the elbow body (101) is 10D, and the wall thickness of the elbow body (101) is 7 mm; the inlet connecting section (102) and The length of the outlet connection section (103) is 300 mm, and the inlet connection section (102) and the outlet connection section (103) are gradually narrowed away from the outer surface of the elbow body (101); a wear-resistant layer (2) is fixedly installed on the inner wall of the elbow body (101), and the inner wall of the wear-resistant layer (2) matches the inner wall of the inlet connection section (102) and the outlet connection section (103); an anti-wear backpack (3) is fixedly installed on the right side surface and between the front and rear side surfaces of the elbow body (101); The wear-resistant layer (2) is provided with a 300 mm wear-resistant extension section in the direction of the outlet connection section (103); The anti-wear backpack (3) is made of a 45° steel plate, and the thickness of the anti-wear backpack (3) is 50 mm; By fixing the wear-resistant layer (2) in the elbow body (101), a composite wear-resistant layer steel pipe is formed inside the elbow body (1), and a 45° wear-resistant backpack (3) is made of steel plate on the outer side of the elbow body (101), so that the bending radius of the elbow body (101) is changed from 6D to 10D.

2. The anti-wear elbow for pneumatic ash conveying pipeline according to claim 1 is characterized by: The wear-resistant layer (2) is made of ceramic material, and the thickness of the wear-resistant layer (2) is 6 mm.

Images