CN219494109U

CN219494109U - Fire door nipple structure of incineration feeder

Info

Publication number: CN219494109U
Application number: CN202320851399.9U
Authority: CN
Inventors: 刘玉江; 薛军; 许颖; 曹志光
Original assignee: Tianjin Hejia Veolia Environmental Services Co Ltd
Current assignee: Tianjin Hejia Veolia Environmental Services Co Ltd
Priority date: 2023-04-17
Filing date: 2023-04-17
Publication date: 2023-08-08
Anticipated expiration: 2033-04-17

Abstract

The fire door nipple structure of the incineration feeder is characterized by comprising a fire door nipple body, a bottom plate, fillers and a cooling companion pipe, wherein the fire door nipple body is connected with the bottom plate in an intermittent welding mode, the fillers are connected between the fire door nipple body and the bottom plate, the front side of the bottom plate is fixedly connected with the cooling companion pipe through full welding, the bottom plate is additionally arranged between the fire door nipple body and the cooling companion pipe, and a filling material with good heat conduction effect is added in the bottom plate, so that not only is the good cooling effect ensured, but also the influence of thermal stress on the fire door nipple body is reduced, and the service life of the fire door nipple body is greatly prolonged; when crack leakage occurs between the bottom plate and the cooling companion tube, cooling water in the cooling companion tube can flow on the bottom plate and can not leak into the furnace door short-joint body, the bottom plate and the cooling companion tube fixed on the outer side of the short-joint body can be directly maintained without stopping the furnace to overhaul the short-joint body, and the production loss is reduced.

Description

Fire door nipple structure of incineration feeder

Technical Field

The utility model relates to the technical field of incineration feeder equipment, in particular to an incineration feeder furnace door pup joint structure.

Background

In the feeder in the rotary furnace of the incineration system, the nipple is arranged on a feeding channel of a furnace door, the body of the nipple is made of stainless steel, a cooling companion pipe is arranged outside the nipple body, the cooling companion pipe is connected with a cooling circulating pump, and the cooling circulating water is used for reducing the surface temperature of the nipple channel, preventing waste from being ignited at high temperature and ensuring the feeding safety.

However, there are still some problems with incineration feeders: the cooling companion tube is directly welded on the pup joint body, causes the cooling circulating water to directly contact with the body, and because the temperature in the front end plate furnace of the feed inlet is about 500 ℃, the temperature difference between the body and the cooling water is caused, thereby generating thermal stress, and the steel plate wall of the body or the welding seam generates cracks over time, and the cooling water leakage accident occurs. When the accident happens, the furnace must be shut down, the leakage points of the pup joint body are welded and repaired, and the furnace shut down delays time to reduce the working efficiency.

Disclosure of Invention

According to the technical problems, the utility model provides an incinerator door nipple structure of an incinerator, which is characterized by comprising an incinerator door nipple body, a bottom plate, fillers and a cooling accompanying pipe,

the furnace door nipple body is connected with the bottom plate in an intermittent welding mode, a connecting filler is arranged between the furnace door nipple body and the bottom plate, the front side of the bottom plate is fixedly connected with a cooling companion pipe through full welding,

specifically, the cooling water inlet and the cooling water outlet of the cooling companion pipe are both arranged at the middle position of the bottom surface of the furnace door nipple body.

Specifically, the cooling companion tube is in a semicircular tube structure.

Specifically, the filler is a metal repairing agent, and can be used for repairing.

The utility model has the beneficial effects that:

according to the utility model, the bottom plate is additionally arranged between the furnace door nipple body and the cooling companion pipe, and the filling material with good heat conduction effect is added into the bottom plate, so that not only is the good cooling effect ensured, but also the influence of thermal stress on the furnace door nipple body is reduced, and the service life of the furnace door nipple body is greatly prolonged; when crack leakage occurs between the bottom plate and the cooling companion tube, cooling water in the cooling companion tube can flow on the bottom plate and can not leak into the furnace door short-joint body, the bottom plate and the cooling companion tube fixed on the outer side of the short-joint body can be directly maintained without stopping the furnace to overhaul the short-joint body, and the production loss is reduced.

Drawings

FIG. 1 is a schematic view of the overall structure of a short section structure of an incinerator door of the incinerator;

FIG. 2 is an enlarged view of the A-position structure of the short section structure of the furnace door of the incineration feeder of the present utility model;

description of the drawings: 1. the furnace door nipple joint comprises a furnace door nipple joint body, a cooling companion pipe, a cooling water inlet, a cooling water outlet, a bottom plate and a filler.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

Example 1

As shown in fig. 1 and 2, the furnace door nipple body 1 and the bottom plate 3 are connected in an intermittent welding mode, a connecting filler 4 is arranged between the furnace door nipple body 1 and the bottom plate 3, the filler 4 is made of a metal repairing agent and can be used for ensuring a heat conduction effect better, the front side of the bottom plate 3 is fixedly connected with a cooling companion tube 2 in a semicircular tube structure through full welding, and a cooling water inlet 21 and a cooling water outlet 22 of the cooling companion tube 2 are arranged at the middle position of the bottom surface of the furnace door nipple body 1.

Example 2

The bottom plate 3 and the filler 4 for ensuring the heat conduction effect are added between the cooling companion tube 2 and the furnace door nipple body 1, thereby ensuring the cooling effect of the cooling companion tube 2 on the furnace door nipple body 1, reducing the influence of thermal stress caused by temperature difference on the furnace door nipple body 1, greatly prolonging the service life of equipment, avoiding the crack generated on the steel plate wall or the welding seam of the furnace door nipple body 1 caused by the thermal stress, causing the leaked cooling water to flow into the inner furnace chamber of the furnace door nipple body 1 from the crack, and the condition is that the furnace is stopped, and the leakage point of the nipple is welded and repaired,

if crack leakage occurs between the bottom plate 3 and the cooling companion tube 2 due to thermal stress, leaked water flows outside the furnace door nipple body 1 or permeates into the bottom plate 3, the bottom plate 3 is positioned outside the furnace door nipple body and is cooled by cooling water, so that the temperature of the bottom plate is in a bearable range of overhaulers, the bottom plate can be disassembled without stopping the furnace, and the leakage points are overhauled, thereby reducing the production loss to the minimum.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. Various components mentioned in the present utility model are common in the art, and it should be understood by those skilled in the art that the present utility model is not limited by the above embodiments, and the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications can be made in the present utility model without departing from the spirit and scope of the utility model, which is defined in the claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The fire door nipple structure of the incineration feeder is characterized by comprising a fire door nipple body, a bottom plate, fillers and a cooling tracing pipe,

the furnace door nipple body is connected with the bottom plate in an intermittent welding mode, a connecting filler is arranged between the furnace door nipple body and the bottom plate, and the front side of the bottom plate is fixedly connected with the cooling companion pipe through full welding.

2. The incineration feeder furnace gate nipple structure according to claim 1, characterized in that the cooling water inlet and the cooling water outlet of the cooling companion pipe are both provided at a bottom surface intermediate position of the furnace gate nipple body.

3. The incineration feeder furnace gate nipple structure according to claim 1, characterized in that the cooling companion tube is of a semicircular tube type structure.