CN202968580U

CN202968580U - Wear-resistant tuyere small sleeve of blast furnace

Info

Publication number: CN202968580U
Application number: CN 201220685987
Authority: CN
Inventors: 王肇飞; 赵景山; 牟建鹏; 林才; 冯春晓; 张倩倩
Original assignee: Yantai Wanlong Vacuum Metallurgy Co Ltd
Current assignee: Yantai Wanlong Vacuum Metallurgy Co ltd
Priority date: 2012-12-12
Filing date: 2012-12-12
Publication date: 2013-06-05
Anticipated expiration: 2022-12-12

Abstract

The utility model relates to a wear-resistant tuyere small sleeve of a blast furnace. The wear-resistant tuyere small sleeve comprises a tuyere cap, a tuyere seat, a water channel and embedded articles, wherein the tuyere cap is made of copper and is in the shape of a bottomless barrel; two round end surfaces of the barrel-shaped tuyere cap are different in diameter; the end surface of the small-diameter end of the tuyere cap is bent inwards to form an inner edge; the tuyere cap is welded at one end of the tuyere seat; the water channel is arranged in one side wall of the tuyere seat; blind holes are formed in the inner edge of the small-diameter end of the tuyere cap or in the surfaces of the side wall and outer wall of a column; the embedded articles are embedded into the blind holes; and the blind holes are round, elliptic or quadrangular. The wear-resistant tuyere small sleeve of the blast furnace has the characteristics that the wear resistance is strong, and the embedded articles are unlikely to fall off.

Description

A kind of wear-resisting blast-furnace tuyere small jacket

Technical field

The utility model relates to a kind of blast-furnace tuyere accessory, particularly a kind of wear-resisting blast-furnace tuyere small jacket.

Background technology

blast furnace tuyere small sleeve is that iron-smelting blast furnace is used to blow and the important process parts of coal powder injection, because of the burnt grain of Blast Furnace Raceway high speed rotating and furnace charge wearing and tearing and slag crust inlet front end and the outer wall of wearing and tearing that come off, make the tuyere small sleeve Fast Wearing, the life-span of blast furnace tuyere small sleeve sharply reduces, when blast wandering or slag crust come off, the blast furnace tuyere small sleeve serious wear, use just ground off the thick copper of its front end 25mm less than 1 month, and blast furnace tuyere small sleeve should use more than 9 months under normal circumstances, prior art solves the main mosaics such as the high nichrome of build-up wear-resistant or embedding casting pottery that rely on of tuyere small sleeve wearing and tearing, the build-up wear-resistant alloy is because the overlay cladding thermal conductivity is bad, easily crack and peel off, result of use is bad, life-span is low, and the method for the ceramic mosaic of the embedding of research casting recently, although the fine solution wear resistance problem of energy, but the method for castingin is all to adopt the pottery of monoblock to carry out at present, not only ceramic tooling cost is high, and brought great difficulty to casting.

The utility model content

It is strong that technical problem to be solved in the utility model is to provide a kind of wear resistance, the wear-resisting blast-furnace tuyere small jacket of mosaic difficult drop-off.

the technical scheme that the utility model solves the problems of the technologies described above is as follows: a kind of wear-resisting blast-furnace tuyere small jacket, comprise the air port cap, inlet base and water channel, described air port cap is copper, also comprise mosaic, described air port cap is bottomless tubbiness, two circular end surface diameters of described tubbiness are not identical, the end face of described air port cap minor diameter one end is bent to form interior edge to inside, described air port cap is nested in described inlet base one end, described water channel is arranged at described inlet base interior, the surface of the interior edge of minor diameter one end or column side wall outer wall is provided with blind hole on the cap of described air port, it is inner that described mosaic embeds described blind hole, and the place, aperture in described blind hole outwards forms projection, described blind hole place is shaped as circle, ellipse or tetragon.

The beneficial effects of the utility model are: are embedded with mosaic in the blind hole place, strengthened the wear resistance of air port cap, and mosaic are incrust, but life-time service.

On the basis of technique scheme, the utility model can also be done following improvement.

Further, the degree of depth of described blind hole is 12 millimeters to 20 millimeters.

Further, described mosaic comprises stupalith, cermet material, high temperature alloy and wear resistant alloy material.

Further, described mosaic is column, and its cross-sectional shape is circle, ellipse or tetragon.

Further, described mosaic is mounted on the cap of air port by modes such as high-temperature agglomerant, soldering, screw threads.

Further, the connector that is mounted on the cap of air port of described mosaic comprises high-temperature agglomerant, solder and screw thread.

The beneficial effect that adopts above-mentioned further scheme is the shape at blind hole place, and the difference of the degree of depth is applicable in varying environment the requirement to the mosaic steadiness, adopts the mosaic of different shapes and unlike material, is applicable to different rub proofness requirements.

Description of drawings

Fig. 1 is the utility model one-piece construction sectional view;

Fig. 2 is the utility model blind hole place structure iron when being shaped as circle;

Fig. 3 is the circular blind hole of the utility model and mosaic vertical view;

Fig. 4 is that the utility model blind hole place is shaped as structure iron when square;

Fig. 5 is the square blind hole of the utility model and mosaic vertical view;

Fig. 6 is the utility model blind hole place structure iron when being shaped as ellipse;

Fig. 7 is the utility model square configuration blind hole place and mosaic vertical view;

Fig. 8 is the utility model side structure iron when being provided with the blind hole place.

In accompanying drawing, the list of parts of each label representative is as follows:

1, air port cap, 2, inlet base, 3, water channel, 4, mosaic, 5, the blind hole place.

Embodiment

Below in conjunction with accompanying drawing, principle of the present utility model and feature are described, example only is used for explaining the utility model, is not be used to limiting scope of the present utility model.

As shown in Figure 1, be the utility model one-piece construction sectional view; Fig. 2 is the utility model blind hole place structure iron when being shaped as circle; Fig. 3 is the circular blind hole of the utility model and mosaic vertical view; Fig. 4 is that the utility model blind hole place is shaped as structure iron when square; Fig. 5 is the square blind hole of the utility model and mosaic vertical view; Fig. 6 is the utility model blind hole place structure iron when being shaped as ellipse; Fig. 7 is the utility model square configuration blind hole place and mosaic vertical view; Fig. 8 is the utility model side structure iron when being provided with the blind hole place.

Embodiment 1

A kind of wear-resisting blast-furnace tuyere small jacket, comprise air port cap 1, inlet base 2, water channel 3 and mosaic 4, described air port cap 1 is copper, described air port cap 1 is bottomless tubbiness, two circular end surface diameters of described tubbiness are not identical, the end face of described air port cap 1 minor diameter one end is bent to form interior edge to inside, described air port cap 1 is nested in described inlet base 2 one ends, described water channel 3 is arranged at described inlet base 1 interior, the surface of the interior edge of minor diameter one end or column side wall outer wall is provided with blind hole 3 on the cap 1 of described air port, and described mosaic 4 embeds described blind hole 3 inside.Cap 1 outside in air port is drilled with blind hole 5, and hole depth is 12mm, and each hole area sum accounts for the mosaic area total area 30%, adds high-temp glue in the hole, in the ceramics pole load hole that stupalith is made, guarantees that ceramics pole and hole gap are full of high-temp glue.After all the hole installs, dry in baking oven, 300 ℃, dried 4 hours.Afterwards air port cap 1 and other components weldings of air port are got final product.

Embodiment 2

Embodiment 2 is with the difference of embodiment 1: add braze in blind hole 5, in the wear resistant alloy post load hole that wear resistant alloy material is made, utilize the mode of induction heating, itself and air port cap matrix is welded together, afterwards with air port cap and other components weldings of air port.

Embodiment 3

Embodiment 3 is with the difference of embodiment 1 and embodiment 2: at the interior machining internal thread of blind hole 5, then the superalloy post threading with high temperature alloy is made is screwed into alloy column in the blind hole 5 of air port cap 1.Afterwards with this air port cap 1 and other components weldings of air port.

The above is only preferred embodiment of the present utility model, and is in order to limit the utility model, not all within spirit of the present utility model and principle, any modification of doing, is equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.

Claims

1. wear-resisting blast-furnace tuyere small jacket, comprise air port cap (1), inlet base (2) and water channel (3), described air port cap (1) is copper, it is characterized in that: also comprise mosaic (4), described air port cap (1) is bottomless tubbiness, two circular end surface diameters of described tubbiness are not identical, the end face of described air port cap (1) minor diameter one end is bent to form interior edge to inside, described air port cap (1) is welded in described inlet base (2) one ends, described water channel (3) is arranged at described inlet base (1) interior, be provided with blind hole (3) on the interior edge of upper minor diameter one end of described air port cap (1) or the surface of column side wall outer wall, described mosaic (4) embeds described blind hole (3) inside, described blind hole place (5) is shaped as circle, ellipse or tetragon.

2. wear-resisting blast-furnace tuyere small jacket according to claim 1, it is characterized in that: the degree of depth of described blind hole (5) is 12 millimeters to 20 millimeters.

3. wear-resisting blast-furnace tuyere small jacket according to claim 1, it is characterized in that: described mosaic (4) comprises stupalith, cermet material, high temperature alloy and wear resistant alloy material.

4. wear-resisting blast-furnace tuyere small jacket according to claim 1 is characterized in that: described mosaic (4) is column, and its cross-sectional shape be circle, ellipse or tetragon.

5. wear-resisting blast-furnace tuyere small jacket according to claim 1, it is characterized in that: the connector that described mosaic (4) is mounted on air port cap (1) comprises high-temperature agglomerant, solder and screw thread.