Iron mixing chute of metal mixer

Abstract

The utility model relates to the field of iron mixing chutes, in particular to an iron mixing chute of a metal mixer, which comprises an iron mixing chute box body and a notch prefabricated member, an iron mixing chute sliding nozzle is arranged at the right end of the iron mixing chute box body, a bottom permanent layer is arranged at the bottom of the inner side of the iron mixing chute box body, and a masonry working layer is arranged on the upper end face of the bottom permanent layer. A side wall working layer is arranged on the inner wall of the iron mixing chute box body, a sliding nozzle permanent layer is arranged on the surface of the inner side of the iron mixing chute sliding nozzle, a masonry layer is arranged on the surface of the sliding nozzle permanent layer, and a filling pouring layer is arranged between the iron mixing chute sliding nozzle and a notch prefabricated part. The masonry mode of the permanent layer of the iron mixing chute is changed, the mushroom nails are welded to the bottom of the permanent layer, the castable is filled, the masonry effect is improved, the service life of the iron mixing chute of the metal mixer can be prolonged, the safety coefficient is increased, and leakage is prevented; and the interface part is prevented from being permeated and eroded by molten iron.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of iron mixing chute, especially to an iron mixing chute of mixing furnace. BACKGROUND

[0002] The iron mixing chute of mixing furnace is a device for adjusting and balancing the supply and demand of molten iron between blast furnace and converter in the process of steelmaking. Its main function is to store and mix the composition and temperature of molten iron to ensure the smooth progress of converter steelmaking. The iron mixing chute of mixing furnace is usually built with refractory materials, which need to have high mechanical strength and slag resistance to resist the gravity and chemical corrosion of molten iron and slag. The design of the chute allows molten iron to flow smoothly into the converter, and the mixing of the composition and temperature of molten iron ensures the quality and efficiency of converter steelmaking.

[0003] At present, the iron mixing chute of mixing furnace is mainly built with bricks, and the working layer and the box body are filled with fire mud as a permanent layer. In the actual use process, the box body is easily leaked due to the quality of masonry and mechanical scouring of molten iron, resulting in limited service life.

[0004] Therefore, in view of the problem that the existing iron mixing chute of mixing furnace is easily leaked due to the quality of masonry and mechanical scouring of molten iron, a kind of iron mixing chute of mixing furnace is designed, which is welded with mushroom nails at the bottom of the permanent layer and filled with castable material, so as to ensure the quality of masonry and prevent the box body from leaking. CONTENT OF THE UTILITY MODEL

[0005] In order to overcome the problem that the existing iron mixing chute of mixing furnace is easily leaked due to the quality of masonry and mechanical scouring of molten iron.

[0006] The technical scheme of the utility model is as follows: an iron mixing chute of mixing furnace, comprising an iron mixing chute box and a slot prefabricated part, the right end of the iron mixing chute box is provided with an iron mixing chute chute, the bottom of the inner side of the iron mixing chute box is provided with a bottom permanent layer, the upper end surface of the bottom permanent layer is provided with a masonry working layer, the inner wall of the iron mixing chute box is provided with a side wall working layer, the surface of the inner side of the iron mixing chute chute is provided with a chute permanent layer, the surface of the chute permanent layer is provided with a masonry layer, and the iron mixing chute chute and the slot prefabricated part are provided with a filling pouring layer.

[0007] Preferably, the permanent layer and the working layer form a protection, the masonry method of the permanent layer of the iron mixing chute is changed, the castable material is filled, the masonry effect is improved, the masonry quality is ensured, the box body is prevented from leaking, the service life of the iron mixing chute of mixing furnace can be improved, and the safety factor is increased.

[0008] Preferably, the iron mixing chute box is made of steel plate, the thickness of the bottom permanent layer is 100MM, the bottom permanent layer is provided with mushroom nails, and the mushroom nails and the iron mixing chute box are welded and fixed.

[0009] As preferred, the thickness of the masonry working layer is 300MM, the masonry working layer is masonry formed by aluminum magnesium carbon bricks, and the brick joints of the masonry working layer are filled with refractory mortar.

[0010] As preferred, the side wall working layer and the masonry working layer are of the same structure, the thickness of the side wall working layer is 130MM, and a gap of 60MM is arranged between the side wall working layer and the iron mixing chute box body, and the gap is filled with permanent layer castable.

[0011] As preferred, the iron mixing chute spout and the iron mixing chute box body are of an integrated structure, the iron mixing chute spout and the iron mixing chute box body are communicated with each other, and the bottom of the iron mixing chute spout is designed as a left-high right-low structure.

[0012] As preferred, the spout permanent layer and the bottom permanent layer are of the same structure, the thickness of the spout permanent layer is 60MM, and the end of the slot prefabricated part is matched with the spout permanent layer.

[0013] As preferred, the masonry layer is masonry formed by aluminum magnesium carbon bricks, and the brick joints of the masonry layer are filled with the same refractory mortar.

[0014] The beneficial effects of the utility model are as follows:

[0015] The iron mixing chute of the mixing furnace changes the masonry method of the permanent layer of the iron mixing chute, the mushroom nails are welded at the bottom of the permanent layer, the castable is filled, the masonry effect is improved, the service life of the iron mixing chute of the mixing furnace can be improved, the safety factor is increased, leakage is prevented, meanwhile, the gap between the slot prefabricated part and the steel plate is filled with castable to prevent the interface part from being eroded by molten iron. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The internal structure schematic diagram of the iron mixing chute of the mixing furnace is shown;

[0017] Figure 2 The three-dimensional structure schematic diagram of the iron mixing chute box body of the iron mixing chute of the mixing furnace is shown;

[0018] Figure 3 The top view structure schematic diagram of the iron mixing chute of the mixing furnace is shown.

[0019] Mark 1, iron mixing chute box body; 11, bottom permanent layer; 12, masonry working layer; 13, side wall working layer; 2, iron mixing chute spout; 21, spout permanent layer; 22, masonry layer; 3, slot prefabricated part; 31, filling cast layer. DETAILED DESCRIPTION

[0020] The utility model is further described below in combination with the drawings and examples.

[0021] Please refer to Figure 1-Figure 3The utility model provides a kind of embodiment: a mixed iron furnace iron mixing chute, including iron mixing chute box body 1, further include slot prefabricated member 3, the right end of iron mixing chute box body 1 is provided with iron mixing chute chute 2, the bottom of the inner side of iron mixing chute box body 1 is provided with bottom permanent layer 11, iron mixing chute box body 1 is steel plate material, the thickness of bottom permanent layer 11 is 100MM, mushroom peg is provided in bottom permanent layer 11, mushroom peg and iron mixing chute box body 1 are welded fixed, the upper end surface of bottom permanent layer 11 is provided with masonry working layer 12, the inner wall of iron mixing chute box body 1 is provided with side wall working layer 13, the surface of the inner side of iron mixing chute chute 2 is provided with chute permanent layer 21, the surface of chute permanent layer 21 is provided with masonry layer 22, filling pouring layer 31 is provided between iron mixing chute chute 2 and slot prefabricated member 3, permanent layer and working layer form protection, and change iron mixing chute permanent layer masonry mode, filling castable, improve masonry effect, guarantee masonry quality, prevent box body to leak, can improve the service life of mixed iron furnace iron mixing chute, increase safety factor.

[0022] Please refer to Figure 1 And Figure 3 In the embodiment, the thickness of masonry working layer 12 is 300MM, masonry working layer 12 is formed by aluminium magnesium carbon brick masonry, and the brick joint of masonry working layer 12 is filled with refractory mortar, the structure of side wall working layer 13 and masonry working layer 12 is same, the thickness of side wall working layer 13 is 130MM, and 60MM gap is provided between side wall working layer 13 and iron mixing chute box body 1, permanent layer castable is filled in the gap, to form protection to bottom permanent layer 11, increase masonry effect, can improve the service life of mixed iron furnace iron mixing chute, prevent to leak.

[0023] Please refer to Figure 1 And Figure 2 In the embodiment, iron mixing chute chute 2 and iron mixing chute box body 1 are integrated structure, iron mixing chute chute 2 and iron mixing chute box body 1 are communicated with each other, and the bottom of iron mixing chute chute 2 is designed as left high right low structure, chute permanent layer 21 and bottom permanent layer 11 are same structure, the thickness of chute permanent layer 21 is 60MM, and the end of slot prefabricated member 3 is adapted with chute permanent layer 21, masonry layer 22 is formed by aluminium magnesium carbon brick masonry, the brick joint of masonry layer 22 is filled with same refractory mortar, the gap between slot prefabricated member 3 and chute brick and the gap between slot prefabricated member 3 and steel plate and the gap between brick and steel plate are filled with castable, to prevent interface part from being penetrated and eroded by molten iron.

[0024] In the work, first remove the debris in the iron mixing chute box 1 and clean, and weld the mushroom nail at the bottom, then pour a layer of 100mm thick permanent layer castable at the bottom of the iron mixing chute box 1 to form the bottom permanent layer 11, improve the masonry effect, after the bottom permanent layer 11 castable solidifies, build 300mm thick aluminum magnesium carbon bricks on the bottom permanent layer 11 as the masonry working layer 12, the brick joints of the masonry working layer 12 should be full of refractory mortar, after the masonry working layer 12 at the bottom of the iron mixing chute is built, the side wall of the iron mixing chute box 1 is built, the thickness of the side wall working layer 13 is 130mm, when the side wall working layer 13 of the iron mixing chute box 1 is built, about 60mm gap should be reserved between the bricks and the box steel plate, and the permanent layer castable is used for filling and pouring to form the side wall working layer 13, so as to avoid leakage of molten iron, after the box is built, a layer of 60mm castable is poured at the bottom of the iron mixing chute spout 2 as the spout permanent layer 21, before the spout permanent layer 21 castable solidifies, the pre-prepared notch prefabricated part 3 is placed in the appropriate position and the angle is adjusted, then the remaining part between the notch prefabricated part 3 and the iron mixing chute box 1 is built with aluminum magnesium carbon bricks, the building method is the same as the box part, and the building layer 22 is formed, finally, the gap between the notch prefabricated part 3 and the spout brick, and the gap between the chute prefabricated part and the steel plate, and the gap between the bricks and the steel plate are filled and poured with castable, so as to prevent the interface part from being eroded by molten iron.

[0025] Through the above steps, the masonry method of the permanent layer of the iron mixing chute is changed, the mushroom nail is welded at the bottom permanent layer 11, the castable is filled, the masonry effect is improved, the service life of the iron mixing chute of the mixing furnace can be improved, and the problem that the existing iron mixing chute of the mixing furnace is easily caused to be penetrated due to the masonry quality and mechanical washing of molten iron is solved.

Claims

1. A chute for adding iron to a mixing furnace, comprising a chute box (1), characterized in that: The invention also includes a slot prefabricated component (3), an iron chute spout (2) is provided at the right end of the iron chute box (1), a bottom permanent layer (11) is provided at the bottom of the inner side of the iron chute box (1), a masonry working layer (12) is provided on the upper end surface of the bottom permanent layer (11), a side wall working layer (13) is provided on the inner wall of the iron chute box (1), a spout permanent layer (21) is provided on the inner surface of the iron chute spout (2), a masonry layer (22) is provided on the surface of the spout permanent layer (21), and a filling casting layer (31) is provided between the iron chute spout (2) and the slot prefabricated component (3).

2. The iron mixing chute for an iron mixing furnace according to claim 1, characterized in that: The iron chute box body (1) is made of steel plate, the thickness of the bottom permanent layer (11) is 100MM, mushroom nails are arranged in the bottom permanent layer (11), and the mushroom nails and the iron chute box body (1) are welded and fixed.

3. The iron mixing chute for an iron mixing furnace according to claim 1, characterized in that: The thickness of the masonry working layer (12) is 300MM. The masonry working layer (12) is made of aluminum-magnesium-carbon bricks, and the brick joints of the masonry working layer (12) are filled with refractory mud.

4. The iron mixing chute for an iron mixing furnace according to claim 1, characterized in that: The side wall working layer (13) and the masonry working layer (12) have the same structure. The thickness of the side wall working layer (13) is 130MM, and a 60MM gap is provided between the side wall working layer (13) and the iron chute box (1), and the gap is filled with permanent layer castable.

5. The iron mixing chute for an iron mixing furnace according to claim 1, characterized in that: The iron chute spout (2) and the iron chute box (1) are an integrated structure. The iron chute spout (2) and the iron chute box (1) are connected to each other, and the bottom of the iron chute spout (2) is designed to be higher on the left and lower on the right.

6. The iron mixing chute for an iron mixing furnace according to claim 1, characterized in that: The structure of the nozzle permanent layer (21) and the bottom permanent layer (11) is the same. The thickness of the nozzle permanent layer (21) is 60MM, and the end of the slot prefabricated part (3) is adapted to the nozzle permanent layer (21).

7. The iron mixing chute for an iron mixing furnace according to claim 1, characterized in that: The masonry layer (22) is made of aluminum-magnesium-carbon bricks, and the brick joints of the masonry layer (22) are filled with the same refractory mud.

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