CN216573390U

CN216573390U - Anti-abrasion spiral conveying device

Info

Publication number: CN216573390U
Application number: CN202123161275.8U
Authority: CN
Inventors: 郭发全; 王玉军
Original assignee: Huaneng Jingyuan Thermal Power Co ltd
Current assignee: Huaneng Jingyuan Thermal Power Co ltd
Priority date: 2021-12-16
Filing date: 2021-12-16
Publication date: 2022-05-24
Anticipated expiration: 2031-12-16

Abstract

Abrasionproof auger delivery device. When the coal mill is used for overhauling and replacing the spiral conveyor, the primary air duct and the sealing disc of the spiral conveyor are seriously worn, the welding seam of the spiral belt strip is easy to wear and crack, 16 short-ring chains of the spiral belt strip are seriously worn, and some short-ring chains are directly broken, so that the output of the spiral conveyor is reduced. The utility model comprises the following components: drum (1) and spiral shell area strip (2) the spiral shell area on the welding have a plurality of along spiral shell area strip circumferencial direction arrange tensioning chain (4), tensioning chain with the drum welding, the drum on every tensioning chain department all weld wear plate (5) the welding seam department surface welding of spiral shell area strip backplate (3). The utility model is used for the anti-abrasion spiral conveying device.

Description

Anti-abrasion spiral conveying device

Technical Field

The utility model relates to an anti-abrasion spiral conveying device.

Background

The coal mill is a double-inlet and double-outlet steel ball coal mill, raw coal is conveyed into the coal mill by the coal feeder, the raw coal is conveyed into the tank by the coal mill screw conveyor to be ground into qualified coal powder, and then primary hot air entering from primary air cylinders of the screw conveyors at two ends of the coal mill brings the ground coal powder out to enter the combustor. The spiral conveyor belt strip of the D-10D coal mill is formed by welding and stacking four sections, and three welding interfaces are arranged in the middle of the whole spiral belt strip; the spiral belt strips are connected with the air pipe through 16 short-ring chains. In recent years, in the maintenance and replacement of a screw conveyor, a D-10D coal mill discovers that a primary air duct and a sealing disc of the screw conveyor are seriously worn, a welding seam of a spiral strip is easy to wear and crack, 16 short-ring chains of the spiral strip are seriously worn, and some short-ring chains are directly broken, so that the output of the screw conveyor is reduced, and the due effect is lost. In recent years, due to the co-combustion of raw coal, the quality of coal is reduced, the influence on the stable operation of a pulverizing system device is great, the service life of spare parts is greatly shortened, and the replacement period of spare parts is shortened.

Disclosure of Invention

The utility model aims to provide an anti-abrasion spiral conveying device.

The above purpose is realized by the following technical scheme:

an anti-wear spiral conveying device, comprising: the anti-abrasion device comprises a cylinder and spiral belt strips, wherein a plurality of tensioning chains are welded on the spiral belt strips and arranged along the surrounding direction of the spiral belt strips, the tensioning chains are welded with the cylinder, an anti-abrasion plate is welded at each tensioning chain on the cylinder, and a protective plate is welded on the surface of a welding line of each spiral belt strip.

The anti-abrasion spiral conveying device is characterized in that the anti-abrasion plate is a triangular plate.

Has the advantages that:

1. according to the utility model, the two guard plates are additionally arranged at the welding seam of the spiral strip, so that the welding seam can be prevented from being easily worn and cracked, the welding seam is protected from being worn, the service life of the spiral conveyor is greatly prolonged, the running reliability of equipment is improved, and the labor intensity of personnel is reduced.

2. The anti-abrasion guard plate is additionally arranged on the tensioning short-loop chain, so that the chain can be prevented from being abraded, the service life of the chain can be prolonged, and the overhauling workload is reduced.

Description of the drawings:

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

FIG. 2 is a side view of the present invention;

in the figure: 1. a cylinder; 2. a helical ribbon; 3. a guard plate; 4. tensioning the chain; 5. a wear plate.

The specific implementation mode is as follows:

example 1:

an anti-wear spiral conveying device, comprising: the spiral belt comprises a cylinder 1 and spiral belt strips 2, wherein a plurality of tensioning chains 4 arranged along the surrounding direction of the spiral belt strips are welded on the spiral belt strips, the tensioning chains are welded with the cylinder, an anti-abrasion plate 5 is welded at each tensioning chain on the cylinder, and a protective plate 3 is welded on the surface of the welding line of the spiral belt strips.

Example 2:

the wear prevention spiral delivery device of embodiment 1, wherein the wear plate is a triangular plate.

Claims

1. An anti-wear spiral conveying device, comprising: drum and spiral shell area strip, characterized by: the spiral belt strip is welded with a plurality of tensioning chains arranged along the surrounding direction of the spiral belt strip, the tensioning chains are welded with the cylinder, each tensioning chain on the cylinder is welded with an anti-abrasion plate, and a protective plate is welded on the surface of the welding line of the spiral belt strip.

2. The wear resistant auger delivery apparatus of claim 1, wherein: the wear-resistant plate is a triangular plate.