CN211112058U - A long-life converter liquid steel slag retaining wall - Google Patents

Abstract

A long-life converter liquid steel slag retaining wall belongs to the technical field of converter steel slag treatment facilities and is used for placing converter steel slag. The technical scheme is as follows: the wall of the reinforced concrete wall surrounds the hot slag splashing pool, a plurality of steel plate embedded parts are poured on the wall surface of the side of the reinforced concrete wall facing the hot slag splashing pool, and a plurality of steel rails are along the steel bars. The walls of the concrete wall are arranged vertically in sequence around the hot slag splashing pool. The bottom surfaces of the multiple rails are respectively welded and connected to the steel plate embedded parts on the surface of the reinforced concrete wall, and the multiple cast steel plates are respectively connected to the adjacent rails. between. The utility model has reasonable structure, and has the comprehensive performance of waterproof, high temperature resistance and impact resistance, and can withstand the chemical erosion caused by steel slag, soda-water mixture and water and steel slag hydration reaction substances at about 1000°C for a long time, and can also withstand the loader to a certain extent. The effect of knocking, bumping and colliding on the wall can realize maintenance-free, and the service life will not be less than 15 years, which improves the economic benefits of the enterprise.

Description

A long-life converter liquid steel slag retaining wall

technical field

The utility model relates to a steel slag retaining wall of a hot slag splashing pool for placing converter steel slag, belonging to the technical field of converter steel slag treatment facilities.

Background technique

The steel slag hot-spraying process is to spray the steel slag with a temperature of more than 200 ℃ and less than 1300 ℃, and use the waste heat to generate supersaturated steam, which will react with f-CaO and f-MgO, and the volume will expand and pulverize, and the volume of CaO will expand by 97.8%. , MgO hydration volume expansion 148%, steel slag pulverization can make steel and slag separate naturally.

The converter steel slag is transported by the straddle car to the steel slag hot-splashing treatment line, the slag tank is lifted by the bridge crane, and the hot-melting steel slag is dumped to the hot-splashing pool. , When the hot-splashing pool is filled with steel slag, the water pipes on both sides of each hot-splashing pool are opened, and the hot water is poured. When the steel slag is hot-sprayed, the pulverized steel slag in the pool is transported by the loader to the steel slag transport dump truck, and pulled to the screening, crushing and magnetic separation production line.

Retaining walls are set on three sides of the hot slag splashing pool, and the retaining walls are constructed of C30 impermeable and heat-resistant concrete. In production and use, the concrete retaining wall is easily damaged due to the long-term exposure of high-temperature liquid steel slag and gas and steam. In production and use, cracks will first appear in the concrete retaining wall, and the steel protective layer of the concrete retaining wall will gradually fall off, and the retaining wall will gradually become thinner and the strength will decrease.

Utility model content

The technical problem to be solved by the utility model is to provide a long-life converter liquid steel slag retaining wall, which can withstand the high temperature and chemical erosion of the high-temperature steel slag for a long time, and can withstand the knocking of the wall by the loader during operation. , collision, collision, with the dual characteristics of impermeability, waterproof and heat resistance and high strength, which can achieve long life and maintenance-free.

The technical solutions to solve the above technical problems are:

A long-life converter liquid steel slag retaining wall, which includes a concrete structure main body and a steel protective structure, the concrete structure main body is an upright reinforced concrete wall, the wall of the reinforced concrete wall surrounds a hot slag splashing pool, and the There is a horizontal base at the lower end, and the horizontal base is connected with the bottom of the hot slag splashing pool. The steel protective structure includes steel plate embedded parts, steel rails, and cast steel plates. Multiple steel plate embedded parts are poured on the reinforced concrete wall facing the hot slag splashing. On the wall surface of one side of the pool, a plurality of rails are arranged vertically around the hot slag splashing pool along the wall of the reinforced concrete wall. Welded connection, multiple cast steel plates are respectively connected between adjacent rails.

In the above-mentioned long-life converter liquid steel slag retaining wall, the plurality of steel plate embedded parts are intermittently arranged in the vertical and horizontal directions on the wall surface of the reinforced concrete wall, the horizontal spacing of the steel plate embedded parts does not exceed 1 meter, and the longitudinal spacing does not exceed 0.6 Meter.

In the above-mentioned long-life converter liquid steel slag retaining wall, the steel plate embedded part and the rail are welded by pressing plate, the lower part of the pressing plate is welded and connected with the steel plate embedded part, the upper part of the pressing plate is pressed on the surface of the lower rail seat of the rail, and the pressing plate is welded with the rail. connect.

In the above-mentioned long-life converter liquid steel slag retaining wall, a positioning block is welded below the upper rail surface of the steel rail, and the positioning block is along the length direction of the steel rail. The positioning block is continuous and intermittent welding in the length direction of the steel rail. On both sides of the rail body, the two sides of the rail body are welded vertically to the sides of the two positioning blocks. The upper surface of the positioning block is parallel to the lower surface of the rail surface and there is a gap. The gap between the positioning block and the rail surface is the same as that of the cast steel. The thickness of the plate is matched, and the cast steel plate is inserted in the gap between the positioning block and the lower surface of the rail surface.

In the above-mentioned long-life converter liquid steel slag retaining wall, the cast steel plate is a ductile iron steel plate, and the width of the cast steel plate matches the distance between the two adjacent rails of the reinforced concrete wall body, and the width of the cast steel plate The length matches the height of the reinforced concrete wall, and the thickness of the cast steel plate is 20-30mm.

The beneficial effects of the present utility model are:

The converter liquid steel slag retaining wall of the utility model adopts a concrete-steel composite structure. On the one hand, the main body of the concrete structure is an upright reinforced concrete wall, which has high strength, impermeability and waterproof performance. On the other hand, the steel protective structure is composed of rails and ductile iron It is composed of steel plate, with high temperature resistance, bump resistance and impact resistance. The overall performance of the steel slag retaining wall is reliable, long life and maintenance-free.

The utility model has reasonable structure and has comprehensive performance of waterproof, high temperature resistance and impact resistance, and can withstand the chemical erosion caused by steel slag, soda-water mixture and water and steel slag hydration reaction substances at about 1000°C for a long time, and can also withstand the loader to a certain extent. The effect of knocking, bumping and colliding on the wall can realize the one-time investment of the concrete-steel composite slag retaining wall to achieve maintenance-free and long service life, and the service life will not be less than 15 years, which improves the economic benefits of the enterprise.

Description of drawings

Fig. 1 is the structural representation of the present utility model;

Fig. 2 is the partial view of Fig. 1;

FIG. 3 is a schematic diagram of the use state of the present invention.

The marks in the figure are as follows: reinforced concrete wall 1, horizontal base 2, steel plate embedded parts 3, rail 4, cast steel plate 5, pressure plate 6, positioning block 7, hot slag splashing pool 8, pool bottom 9, steel slag 10.

Detailed ways

The utility model includes a concrete structure main body and a steel protective structure. The concrete structure main body is composed of a reinforced concrete wall 1 and a horizontal base 2. The steel protective structure consists of steel plate embedded parts 3, steel rails 4, cast steel plates 5, pressing plates 6, and positioning blocks. 7 compositions.

As shown in the figure, the reinforced concrete wall 1 is upright, the wall of the reinforced concrete wall 1 surrounds the hot slag splashing pool 8, the lower end of the reinforced concrete wall 1 has a horizontal base 2, the horizontal base 2 and the bottom of the hot slag splashing pool 8 9 phase connections.

The figure shows that the multiple steel plate embedded parts 3 of the steel protective structure are poured on the wall surface of the side of the reinforced concrete wall 1 facing the hot slag splashing pool 8, and the multiple steel plate embedded parts 3 are placed on the reinforced concrete wall 1. The vertical and horizontal directions of the wall surface are intermittently arranged, the horizontal spacing of the steel plate embedded parts 3 is not more than 1 meter, and the longitudinal spacing is not more than 0.6 meters.

As shown in the figure, a plurality of steel rails 4 are arranged vertically in sequence along the wall of the reinforced concrete wall 1 around the hot slag splashing pool 8 . The cross section of the rail 4 is an "I" shape, the upper part of the I shape is the rail surface, the middle is the rail body, and the lower part is the rail seat. When the plurality of rails 4 are connected with the steel plate embedded parts 3 on the wall surface of the reinforced concrete wall 1, the pressing plate 6 is used for welding connection. The lower part of the pressure plate 6 is welded and connected with the steel plate embedded part 3 , the upper part of the pressure plate 6 is pressed against the surface of the lower rail seat of the rail 4 , and the pressure plate 6 is connected with the rail seat of the steel rail 4 by welding. The selection range of rail 4 is QU70-QU120 lifting rail

As shown in the figure, the connection between the cast steel plate 5 and the steel rail 4 is by means of plugging. The positioning block 7 is welded below the upper rail surface of the steel rail 4 . The positioning block 7 is along the length direction of the steel rail 4 , and the positioning block 7 is welded continuously and intermittently along the length direction of the steel rail 4 . Since both sides of the rail 4 are connected with the cast steel plates 5 , the positioning block 7 needs to be welded on both sides of the rail 4 . The positioning blocks 7 are respectively located on both sides of the rail body of the steel rail 4 , and the two sides of the rail body of the steel rail 4 are respectively vertically welded to the side surfaces of the two positioning blocks 7 . In order to place the cast steel plate 5 between the positioning block 7 and the rail surface of the rail 4, the upper surface of the positioning block 7 is parallel to the lower surface of the rail surface of the rail 4 and there is a gap, and the gap between the positioning block 7 and the rail surface of the rail 4 is the same as that of the cast steel. The thickness of the plate 5 is matched, the cast steel plate 5 is inserted in the gap between the positioning block 7 and the lower surface of the rail surface of the rail 4 , and a plurality of cast steel plates 5 are respectively connected between the adjacent steel rails 4 . The advantage of using the plug-in connection method is that after the cast steel plate 5 is damaged by long-term corrosion and impact, it can be easily taken out from between the rails 4 and replaced with a new cast steel plate 5.

As shown in the figure, the cast steel plate 5 is a ductile iron steel plate, the width of the cast steel plate 5 matches the distance between the two adjacent rails 4 of the wall of the reinforced concrete wall 1, and the length of the cast steel plate 5 is the same as that of the steel bar. The height of the concrete wall body 1 is matched, and the thickness of the cast steel plate 5 is 20-30mm.

An embodiment of the present utility model is as follows:

The reinforced concrete wall 1 adopts C30 impermeable concrete, the height of the reinforced concrete wall 1 is 6m, the thickness of the lower end is 0.8m, and the thickness of the upper end is 0.4m;

The width of the horizontal base 2 is 4.5m and the height is 0.7m;

The length of the steel plate embedded part 3 is 600mm, the width is 300mm, and the thickness is 20mm;

Rail 4 is U71Mn rail;

The length of the pressing plate 6 is 150mm, the width is 40mm, and the thickness is 20mm;

The cast steel plate 5 is a ductile iron steel plate, the width is 1000mm, the thickness is 30mm, and the length is set along the height of the wall;

The length of the positioning block 7 is 600 mm, the width is 30 mm, and the thickness is 20 mm.

Claims (5)

1. a long-life converter liquid steel slag retaining wall is characterized in that: it comprises a concrete structure main body and a steel protective structure, and the concrete structure main body is an upright reinforced concrete wall (1), the wall of the reinforced concrete wall (1) The body surrounds the hot slag splashing pool (8). The lower end of the reinforced concrete wall (1) is provided with a horizontal base (2). The horizontal base (2) is connected to the bottom (9) of the hot slag splashing pool (8). Steel protection The structure includes steel plate embedded parts (3), rails (4), cast steel plates (5), and a plurality of steel plate embedded parts (3) are poured on the reinforced concrete wall (1) facing the hot slag splashing pool (8). On the surface of one side wall, a plurality of rails (4) are arranged vertically around the hot slag pool (8) along the wall of the reinforced concrete wall (1). The steel plate embedded parts (3) on the wall surface of the body (1) are welded and connected, and a plurality of cast steel plates (5) are respectively connected between adjacent steel rails (4). 2. The long-life converter liquid steel slag retaining wall according to claim 1, characterized in that: the plurality of steel plate embedded parts (3) are intermittently arranged in the vertical and horizontal directions of the wall surface of the reinforced concrete wall (1). , the horizontal spacing of adjacent steel plate embedded parts (3) shall not exceed 1 meter, and the longitudinal spacing shall not exceed 0.6 meters. 3. The long-life converter liquid steel slag retaining wall according to claim 1, characterized in that: a pressure plate (6) is used for welding between the steel plate embedded parts (3) and the steel rail (4), and the pressure plate (6) is welded. The lower part is welded and connected with the steel plate embedded part (3), the upper part of the pressure plate (6) is pressed against the lower rail seat surface of the rail (4), and the pressure plate (6) is connected with the rail (4) by welding. The long-life converter liquid steel slag retaining wall according to claim 1, characterized in that: a positioning block (7) is welded below the upper rail surface of the rail (4), and the positioning block (7) is along the rail (4). ) in the length direction of the rail (4), the positioning blocks (7) are through-length and intermittent welding in the length direction of the rail (4), and the positioning blocks (7) are respectively located on both sides of the rail body of the rail (4), and the rail body of the rail (4) on both sides of the rail body. Weld vertically to the sides of the two positioning blocks (7) respectively. The upper surface of the positioning block (7) is parallel to the lower surface of the rail (4) and there is a gap. The gap matches the thickness of the cast steel plate (5), the cast steel plate (5) is inserted in the gap between the positioning block (7) and the lower surface of the rail surface (4), and a plurality of cast steel plates (5) are respectively connected to each other. between adjacent rails (4). 5. The long-life converter liquid steel slag retaining wall according to claim 1, characterized in that: the cast steel plate (5) is a ductile iron steel plate, and the width of the cast steel plate (5) is the same as that of the reinforced concrete wall (1). ) between the adjacent two rails (4) of the wall, the length of the cast steel plate (5) matches the height of the reinforced concrete wall (1), the length of the cast steel plate (5) The thickness is 20-30mm.

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