CN217463608U

CN217463608U - Pipeline installation joint

Info

Publication number: CN217463608U
Application number: CN202220833617.1U
Authority: CN
Inventors: 陈长卫; 潘超
Original assignee: Nanjing Iron and Steel Co Ltd
Current assignee: Nanjing Iron and Steel Co Ltd
Priority date: 2022-04-12
Filing date: 2022-04-12
Publication date: 2022-09-20
Anticipated expiration: 2032-04-12

Abstract

The utility model discloses a pipeline erection joint, including the distribution branch pipe, the sealed dish of distribution branch pipe top fixed connection band-pass hole is equipped with the ring flange of activity from top to bottom on the distribution branch pipe, and the ring flange internal diameter is greater than sealed dish internal diameter, is equipped with a plurality of mounting holes on the ring flange, aligns with the flange mounting hole on the connecting pipe, through the bolt fastening. The utility model discloses changing the fixed flange dish of the plate of distributor on the distribution branch pipe into movable ring flange, the installation of cooperation sealed dish and stopper effectively solves the connection problem of changing toper distributor pipeline, greatly reduces installation time.

Description

Pipeline installation joint

Technical Field

The utility model relates to a buggy distributor especially relates to a pipeline installation joint.

Background

In the blast furnace ironmaking production, the ironmaking process takes carbon as a main energy source, and blast furnace coal powder injection is an important technology for providing a heat source, a reducing agent and a penetrating agent for a blast furnace by using coal powder to replace part of coke, so that the pig iron cost can be reduced, and the environmental pollution caused by the ironmaking process can be reduced. When the blast furnace injects the pulverized coal, the pulverized coal enters the distributor, is uniformly distributed to the distribution branch pipes through the gaps between the floating cones and the distributor shell, and is sent to each tuyere of the blast furnace through the injection branch pipes.

The conical pulverized coal distributor mainly used in my factory has the following defects in the replacement process: the coal powder distributor distribution branch pipes are connected with the injection branch pipes through distribution discs and bolts, one set of conical coal powder distributor is provided with 16 distribution branch pipes, and each branch pipe is provided with a distribution disc. The distribution plate has 4 bolt holes for connecting and fixing. During replacement, the fixed distribution plate bolt holes cannot be aligned, i.e. cannot be smoothly installed. The commonly adopted measures are that the gas-cutting is used on site to open holes on the distribution plate again, which not only wastes time and labor, but also causes the untight connection between the branch pipe of the pulverized coal distributor and the blast furnace injection branch pipe to affect the use effect or leak pulverized coal.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims at providing a nimble convenient pipeline erection joint.

The technical scheme is as follows: pipeline erection joint, including the distribution branch pipe, the sealed dish of distribution branch pipe top fixed connection band-pass hole is equipped with the ring flange of activity from top to bottom on the distribution branch pipe, and the ring flange internal diameter is greater than sealed dish internal diameter, is equipped with a plurality of mounting holes on the ring flange, aligns with the flange mounting hole on the connecting pipe, through the bolt fastening.

Preferably, the inner diameter of the flange plate is more than 1cm larger than that of the sealing plate.

Preferably, the flange plate is provided with a groove for placing the sealing disc. When the connection is performed, the gap is reduced, and the sealing performance is improved.

Preferably, the sealing disc is provided with a sealing ring. The sealing effect of pipeline connection can be improved by the matching use of the sealing disc and the sealing ring.

Preferably, the middle part of the distribution branch pipe is provided with a limiting block, and the flange plate is provided with a limiting groove. After the disconnection, the maximum movable position of the flange plate is limited by the limiting block, and the limiting block is clamped into the limiting groove fixing flange plate, so that the operation and installation are convenient.

Has the advantages that: compared with the prior art, the utility model, have following advantage: simple structure, the mounting means is nimble, effectively saves installation time.

Drawings

FIG. 1 is a schematic view of the present invention;

fig. 2 is a conical pulverized coal distributor using the present invention.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings.

The pipeline installing joint of the utility model comprises a distributing branch pipe 3 and a flange 2 which is arranged on the distributing branch pipe 3 and can move up and down, wherein 4 installing holes are arranged on the flange 2, and bolts are arranged in the installing holes; the top of the distribution branch pipe 3 is provided with a sealing disc 1 with a through hole, the sealing disc 1 is provided with a sealing ring 4, and the inner diameter of the flange plate is larger than the inner diameter of the sealing disc by more than 1 cm. The injection branch pipe with the flange plate is arranged in alignment with the distribution branch pipe 3, the sealing disc 1 and the sealing ring 4 are pressed tightly, and the sealing disc is positioned in the groove of the flange plate at the moment. The distribution branch pipe is also provided with a flange limiting block, and the flange is provided with a limiting groove to limit the maximum movable position of the flange, so that the distribution branch pipe is convenient to mount.

The injection branch pipe with the flange plate is installed by aligning with the distribution branch pipe 3, after the sealing disc 1 and the sealing ring 4 are compressed, the movable flange plate 2 is aligned with the connecting pipe flange and is installed in the installation hole, and the 2 flanges are fixed through bolts.

The modification of the workshop is to remove a fixed flange disc of the pulverized coal distributor, mount a flange disc limiting block and a flange disc 2 on the distribution branch pipe, and fixedly mount a sealing disc 1 with a through hole and a sealing ring 4 on the top of the distribution branch pipe. After aligning the coal injection hole of sealed dish 1 during the installation, remove ring flange 2 and can aim at the bolt hole of each flange, realize installing the buggy distributor fast.

Claims

1. The utility model provides a pipeline erection joint, includes distribution branch pipe (3), its characterized in that, the sealed dish (1) of distribution branch pipe (3) top fixed connection band-pass hole is equipped with ring flange (2) of activity from top to bottom on the distribution branch pipe, and ring flange (2) internal diameter is greater than sealed dish (1) internal diameter, is equipped with a plurality of mounting holes on ring flange (2), aligns with the flange mounting hole on the connecting pipe, through the bolt fastening.

2. The pipe fitting according to claim 1, wherein the inner diameter of the flange (2) is greater than the inner diameter of the sealing plate by more than 1 cm.

3. A fitting connection according to claim 2, characterized in that said flange (2) is provided with a groove for receiving a sealing disc.

4. The pipe fitting according to claim 1, characterized in that the sealing plate (1) is provided with a sealing ring (4).

5. The pipeline installation joint as recited in claim 1, wherein a limiting block is arranged in the middle of the distribution branch pipe (3), and a limiting groove is arranged on the flange plate (2).