CN216869185U

CN216869185U - Bottom blowing furnace charge door protector

Info

Publication number: CN216869185U
Application number: CN202123191447.6U
Authority: CN
Inventors: 袁俊智; 王新民; 吴稳柱; 孙殿强; 蹇冬冬; 魏凯; 郑东平
Original assignee: Huading Copper Development Co ltd
Current assignee: Huading Copper Development Co ltd
Priority date: 2021-12-18
Filing date: 2021-12-18
Publication date: 2022-07-01
Anticipated expiration: 2031-12-18

Abstract

The utility model relates to the technical field of smelting devices, in particular to a protective device for a charging hole of a bottom blowing furnace. Including the lag, the lag inlays the inner wall of locating the charge door brick, the up end integrated into one piece of lag has the annular plate that shields protection charge door water jacket and charge door brick, the lateral wall symmetry of annular plate is provided with the connecting plate of two extensions, integrated into one piece has the engaging lug on the connecting plate, be provided with on the outer wall of end blowing stove with the fixed ear of engaging lug complex, the same screw hole has all been seted up on engaging lug and the fixed ear, the screw hole internal thread is provided with the bolt. The problem of present ubiquitous converting furnace charge door brick glue burnt back, to the damage of charge door brick when the workman clears up to and the blowing out that frequent change charge door brick brought is solved, can prolong the life of charge door brick, improve the operating rate, practice thrift the cost.

Description

Bottom blowing furnace charge door protector

Technical Field

The utility model relates to the technical field of smelting devices, in particular to a protective device for a charging hole of a bottom blowing furnace.

Background

In normal oxygen-enriched bottom blowing production, auxiliary materials such as quartz flux, cold materials and the like are added through a feeding port to assist in blowing so as to improve the smelting efficiency and the quality of smelted products.

In order to protect the water jacket of the charging hole from being burnt out by the high-temperature melt, a lining refractory brick (hereinafter referred to as a charging hole brick) needs to be arranged inside the water jacket of the charging hole. Due to the bottom blowing effect of the oxygen lance, high-temperature melt is violently stirred in the furnace and often adheres to the charging hole brick to form coking, and if the charging hole brick is not cleaned in time, the coking is accumulated more and more, so that the charging hole is blocked. Because in the normal production process, the charge door of the continuous blowing furnace is continuously charged, a worker can only observe the coking condition of the charge door during production, and pokes and beats the coking by using a long drill rod at any time, and because the copper and sulfur are high in grade, a natural gas gun is sometimes needed to be used for carrying out the coking operation, so that certain potential safety hazards exist.

Moreover, as the refractory brick is brittle, once the charging opening brick is damaged, the charging opening brick needs to be specially shut down for replacement, the labor intensity of workers is high, and the operation rate is influenced. Therefore, a protection measure for the charging opening brick is needed to be taken to prolong the service life of the charging opening brick and improve the operation rate.

SUMMERY OF THE UTILITY MODEL

The utility model provides a protective device for a charging hole of a bottom blowing furnace, which aims to solve the problems that the charging hole brick of the charging hole of the converting furnace is damaged when a worker cleans the charging hole brick after the charging hole brick is burnt, and the furnace is stopped because the charging hole brick is frequently replaced, prolong the service life of the charging hole brick, improve the operation rate and save the cost.

In order to achieve the technical effects, the technical scheme adopted by the utility model is as follows:

the utility model provides a bottom blowing stove charge door protector, includes the lag, the lag inlays the inner wall of locating the charge door brick, the up end integrated into one piece of lag has the annular plate that shields protection charge door water jacket and charge door brick, the lateral wall symmetry of annular plate is provided with the connecting plate of two extensions, integrated into one piece has the engaging lug on the connecting plate, be provided with on the outer wall of bottom blowing stove with the fixed ear of engaging lug complex, the same screw hole has all been seted up on engaging lug and the fixed ear, the screw hole internal thread is provided with the bolt.

Preferably, the protecting sleeve, the annular plate, the connecting plate and the connecting lug are made of cast iron.

Preferably, the interior of the protective sleeve is provided with a clip-shaped cooling water pipeline, and the annular plate is provided with a water inlet and a water outlet communicated with the cooling water pipeline.

Preferably, the annular plate is provided with a water inlet hole matched with a water inlet pipe of the feed inlet water jacket and a water outlet hole matched with a water outlet pipe of the feed inlet water jacket.

Compared with the prior art, the utility model has the beneficial effects that:

1. the protective sleeve made of cast iron is arranged, because the blown metal material is different from the protective sleeve material, coking adhered to the protective sleeve is easier to clean, and the times of coking are reduced;

2. the annular plate is arranged, so that the damage to the water jacket of the charging opening and the charging opening brick when workers insert long drill rods every time is avoided, and the service lives of the water jacket of the charging opening and the charging opening brick are prolonged;

3. the connecting lug and the fixing lug are arranged, the fixing more firmly than cement mortar can be realized through bolts, the looseness is not easy, and the later-stage replacement is more convenient.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model.

In the drawings:

FIG. 1 is a front cross-sectional view of a shield apparatus of the present invention;

FIG. 2 is a top view of the guard of the present invention;

FIG. 3 is a schematic view of the protective device of the present invention in partial cutaway;

wherein: 1. the furnace body brick, 2, a charging hole water jacket, 3, a charging hole brick, 4, a protective sleeve, 5, a cooling water pipeline, 6, an outer wall, 7, a feeding hole, 8, an annular plate, 9, a connecting plate, 10, a connecting lug, 11, a fixing lug, 12, a nut, 13, a bolt, 14, a water inlet hole, 15, a water outlet hole, 16, a water inlet, 17, a water outlet and 18 threaded holes.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Example (b):

referring to the attached drawings 1-3, the utility model provides a bottom blowing furnace charge door protector sets up in the inner wall of the charge door brick 3 of bottom blowing furnace, the body of bottom blowing furnace is built by laying bricks or stones through fire-resistant furnace body brick 1 and is formed, the surface of furnace body brick 1 is provided with metallic outer wall 6, builds into circularly at discharge gate 7 just, and the fixed circular shape charge door water jacket 2 that inlays of charge door brick 3 inner wall through cement mortar of discharge gate 7 department, the inner wall of charge door water jacket 2 is fixed with charge door brick 3 that refractory material made through cement mortar, the inner wall of charge door brick 3 is fixed with protector's lag 4 through cement mortar.

The inner wall of charge door brick 3 is inlayed to lag 4, the thickness of lag 4 is 5cm, and lag 4 is the cast iron material, has better stability, and the price is low, and is different with the material of the metallics of converting, and the coking that bonds on the lag is cleared up more easily, has reduced the number of times of burning burnt, and when the workman uses the long borer to disclose the coking, compare with the charge door brick and be difficult to disclose badly, has longer life, has reduced the number of times that the converting furnace shut down the maintenance, has improved the efficiency of output and work.

Furthermore, the protecting sleeve 4 is internally provided with a clip-shaped cooling water pipeline 5 which can cool the protecting sleeve 4 and avoid performance reduction caused by continuous high temperature.

The up end integrated into one piece of lag 4 has the annular plate 8 that shields protection charge door water jacket 2 and charge door brick 3, and annular plate 8 is cast iron material, and annular plate 8 can cover the surface of charge door water jacket 2 and charge door brick 3, has avoided the workman to charge door water jacket and charge door brick's damage when injecting the long borer at every turn, has improved the life of charge door water jacket and charge door brick.

Further, the lateral wall integrated into one piece of annular plate 8 has two connecting plates 9 that extend, and calls the setting, integrated into one piece has engaging lug 10 on the connecting plate 9, be provided with on the outer wall 6 of end-blown converter with engaging lug 10 complex fixed ear 11, the same screw hole 18 has all been seted up on engaging lug 10 and the fixed ear 11, screw hole 18 internal thread is provided with bolt 13, bolt 13 cooperation is provided with nut 12. The realization is further fixed through bolt 13 with lag 4, is difficult to become flexible, and the more convenience of change in later stage.

Furthermore, the connection plate 9 and the connection lug 10 are made of cast iron.

Furthermore, the annular plate 8 is provided with a water inlet 16 and a water outlet 17 which are communicated with the cooling water pipeline 5, so that the flow of water flow in the cooling water pipeline 5 can be realized, and the cooling of cold water can be continued.

Furthermore, the annular plate 8 is provided with a water inlet 14 matched with the water inlet pipe of the feed inlet water jacket 2 and a water outlet 15 matched with the water outlet pipe of the feed inlet water jacket 2.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a bottom blowing stove charge door protector which characterized in that: including lag (4), lag (4) inlay the inner wall of locating charge door brick (3), the up end integrated into one piece of lag (4) has annular plate (8) that shields protection charge door water jacket (2) and charge door brick (3), the lateral wall symmetry of annular plate (8) is provided with connecting plate (9) of two extensions, integrated into one piece has engaging lug (10) on connecting plate (9), be provided with on outer wall (6) of end-blown furnace with engaging lug (10) complex fixed ear (11), the same screw hole (18) have all been seted up on engaging lug (10) and fixed ear (11), screw hole (18) internal thread is provided with bolt (13).

2. The bottom-blowing furnace charging opening protection device of claim 1, characterized in that: the protective sleeve (4), the annular plate (8), the connecting plate (9) and the connecting lug (10) are made of cast iron.

3. The charging hole protection device of the bottom-blowing furnace of claim 2, characterized in that: the protective sleeve (4) is internally provided with a clip-shaped cooling water pipeline (5), and the annular plate (8) is provided with a water inlet (16) and a water outlet (17) which are communicated with the cooling water pipeline (5).

4. The charging hole protection device of the bottom-blowing furnace of claim 3, characterized in that: and a water inlet hole (14) matched with a water inlet pipe of the feed inlet water jacket (2) and a water outlet hole (15) matched with a water outlet pipe of the feed inlet water jacket (2) are formed in the annular plate (8).