Slag pot cutting-free residual steel processing device based on refractory partition structure

Abstract

The utility model discloses a kind of residual steel processing devices of slag tank cutting-free based on refractory compartment structure, including steel plant and the steel slag transport track being set along steel plant axis direction and with the steel slag processing unit of steel slag transport track vertical, steel slag transport track is provided with the slag tank transport car moving along the steel slag transport track, slag tank transport car includes slag tank car body, with the compartment structure being detachably connected with slag tank car body, compartment structure is set using nine-square structure, the outer wall of compartment structure is fixed with first stainless steel anchor by welding mode, compartment structure is detachably connected with the compartment, the inner wall of the compartment is set second stainless steel anchor by welding mode, second stainless steel anchor is symmetrically set on the opposite inner wall of the compartment, compartment structure includes nine-square containing space formed by steel structure, compartment structure outside is set as steel structure, and interior four walls are built magnesium carbon brick layer.

Description

Technical Field

[0001] This utility model belongs to the field of metallurgical technology, specifically relating to a slag pot residual steel treatment device based on a refractory compartment structure that does not require cutting. Background Technology

[0002] The existing technology for treating residual steel in slag pots uses oxygen cutting, which has the following technical drawbacks:

[0003] The highest cost is that processing 1 ton of residual steel requires 0.5-0.8 m³ of oxygen, and the oxygen lance tube loss rate is as high as 1 tube per ton of steel.

[0004] The second highest risk: molten slag splashes with a radius of up to 15 meters during cutting operations, which is related to 38% of the industry's burn accidents.

[0005] The third most polluting pollutant: PM2.5 concentration in cutting fumes exceeds 200 mg / m³, and 1.2 tons of fumes are generated per 10,000 tons of steel.

[0006] In view of the above factors, a slag pot non-cutting residual steel processing device based on a refractory compartment structure is provided. Under the condition of natural cooling, the slag received and dumped can be gravity crushed in the compartment, and then sorted and returned to the furnace using an electromagnetic chuck. The device is simple to operate, improves the efficiency of the slag pot residual steel processing process, and is more environmentally friendly. Utility Model Content

[0007] The purpose of this invention is to provide a slag pot residual steel treatment device based on a refractory compartment structure that does not require cutting, so as to solve the problems mentioned in the background art.

[0008] The purpose of this utility model is achieved through the following technical solution: a slag pot non-cutting residual steel treatment device based on a refractory compartment structure, including a steelmaking workshop, a steel slag transport track set along the axial direction of the steelmaking workshop, and a steel slag treatment unit perpendicular to the steel slag transport track;

[0009] The steel slag transport track is equipped with a slag tank transport vehicle that moves along the steel slag transport track. The slag tank transport vehicle includes a slag tank vehicle body and a compartment structure that is detachably connected to the slag tank vehicle body. The compartment structure adopts a nine-square grid structure. The outer wall of the compartment structure is fixedly provided with a first stainless steel anchor by welding.

[0010] Furthermore, the compartmentalized structure includes detachably connected partition cavities. The inner walls of these partition cavities are fitted with second stainless steel anchors via welding. These second stainless steel anchors are symmetrically positioned on opposite inner walls of the partition cavities.

[0011] Furthermore, the compartmentalized structure includes a nine-square grid of accommodating space formed by a steel structure, with the exterior of the compartmentalized structure being a steel structure and the interior walls being constructed of layers of magnesia-carbon bricks.

[0012] The nine-grid structure of the segmented structure is made of fire-resistant board, and a protective layer is provided at the bottom of the segmented structure.

[0013] Furthermore, the protective layer consists of an insulating layer and a protective layer from top to bottom. The protective layer is divided into two layers: the first layer is made of masonry magnesia-carbon bricks, and the second layer is made of tar dolomite bricks.

[0014] Furthermore, the compartmentalized structure is a hollow cavity, and a nine-square grid space is formed within the compartmentalized structure by the fire-resistant board, which includes transverse fire-resistant board and longitudinal fire-resistant board.

[0015] Furthermore, the fire-resistant board is assembled in a detachable manner, and the fire-resistant board includes two sets of transverse fire-resistant boards, which are detachably connected to the partition structure through the inner wall.

[0016] The two sets of transverse fire-resistant boards are connected by a number of longitudinal fire-resistant boards, and the two sets of transverse fire-resistant boards are connected to the inner wall of the partition structure by a number of longitudinal fire-resistant boards. The longitudinal fire-resistant boards are detachably connected to the two sets of transverse fire-resistant boards.

[0017] Furthermore, the detachable connection between the slag tanker body and the compartment structure is a plug-in connection;

[0018] The slag tanker body has a receiving cavity, which is an open cavity. The compartmentalized structure is located inside the receiving cavity, and the height of the receiving cavity is one-quarter of the height of the compartmentalized structure.

[0019] Furthermore, a positioning hole is fixedly provided at the center of the four walls of the open cavity. The positioning hole is coaxially arranged with the positioning channel fixedly provided at the center of the four walls of the compartmentalized structure and is fixed by a pin.

[0020] An application of a slag pot non-cutting residual steel processing device based on a refractory compartment structure is described. The slag pot formed by the compartment structure receives steel slag and allows it to cool to a surface temperature of ≤300℃. Then, it is crushed into individual pieces ≤800mm by a hydraulic breaker with an impact energy of 3600J / time. The steel slag is then formed into individual pieces and the residual steel pieces are sorted by an electromagnetic chuck. Finally, the pieces are transported to the converter by a feeding car.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] This utility model adopts a nine-grid design and can be used independently or in conjunction with a partition cavity. When cleaning slag, the slag in different positions is cleaned by inserting into different grid holes of the "nine grid". It is easy to operate and improves work efficiency.

[0023] This invention saves costs and reduces the occurrence of accidents caused by molten slag splashing and burning during traditional cutting operations.

[0024] This utility model utilizes a slag pot formed by a segmented structure to receive steel slag, which is then allowed to cool to a surface temperature of ≤300℃. The slag is then crushed to a single piece of ≤800mm by a hydraulic breaker with an impact energy of 3600J / time. The steel slag is then formed into crushed single pieces and the residual steel blocks are separated by an electromagnetic chuck. Finally, the slag is transported to the converter by a feeding car. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of the steel slag transport track and steel slag processing unit of this utility model;

[0026] Figure 2 This is a plan view of the steel slag treatment unit of this utility model;

[0027] Figure 3 This is a schematic diagram of the fixed receiving cavity of the slag tanker body of this utility model;

[0028] Figure 4 This is a schematic diagram of the grid structure of this utility model;

[0029] Figure 5 This is a schematic diagram of the internal partitioning cavity of the segmented structure of this utility model;

[0030] Figure 6 This is a schematic diagram of the bottom protective layer of the segmented structure of this utility model;

[0031] Figure 7 This is a schematic diagram of the dovetail groove and dovetail block of this utility model. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] like Figure 1-7 As shown, a slag pot non-cutting residual steel treatment device based on refractory compartment structure includes a steelmaking workshop 1, a steel slag transport track 2 set along the axis of the steelmaking workshop 1, and a steel slag treatment unit perpendicular to the steel slag transport track 2. A hoisting trolley (not shown in the figure) is set in the steelmaking workshop 1 for hoisting the compartment structure 5. Steelmaking equipment is set on one side of the steel slag transport track 2 in the steelmaking workshop 1.

[0036] The steel slag transport track 2 is equipped with a slag tank transport vehicle 3 that moves along the steel slag transport track 2. The slag tank transport vehicle 3 includes a slag tank vehicle body 4 and a compartment structure 5 that is detachably connected to the slag tank vehicle body 4. The compartment structure 5 adopts a nine-square grid structure. The outer wall of the compartment structure 5 is fixedly provided with a first stainless steel anchor 6 by welding.

[0037] In this utility model, the steel slag treatment unit is a positioning platform 20 independently set in the steelmaking workshop 1. The positioning platform 20 is provided with a placement groove 21 that is compatible with the compartment structure 5. The height of the placement groove 21 is one-quarter of the height of the compartment structure 5. Limiting holes 22 are fixedly opened at the center of the four walls of the placement groove 21. The limiting holes 22 are coaxially arranged with the limiting channels fixedly opened at the center of the four walls of the compartment structure 5.

[0038] An electric push rod 23 is provided on the positioning platform 20. The output end of the electric push rod 23 is coaxial with the limiting hole and passes through the limiting hole to cooperate with the limiting channel to limit the segment structure 5.

[0039] At the steel slag processing unit, a hydraulic breaker (model YYX-360) with an impact energy of 3600J / time is used to crush the steel slag into pieces ≤800mm.

[0040] The steel slag is crushed into broken pieces by gravity within the compartmentalized structure 5, and the remaining steel pieces are sorted by electromagnetic chucks. The slag is then transported to the converter via a feeding car.

[0041] To facilitate disassembly and independent cleaning during use, the partition structure 5 is detachably connected to the partition cavity 7. The inner wall of the partition cavity 7 is provided with a second stainless steel anchor 8 by welding. The second stainless steel anchor 8 is symmetrically arranged on the opposite inner walls of the partition cavity 7.

[0042] The partition cavity 7 is made of magnesium carbon brick plate, and an anti-oxidation coating (Al2O3 content ≥90%) is sprayed on the working surface of the inner wall of the partition cavity 7.

[0043] The segmented structure 5 is made of magnesium carbon bricks, and the working surface of each segment of the segmented structure 5 is sprayed with an anti-oxidation coating (Al2O3 content ≥90%).

[0044] The compartmentalized structure 5 can work independently or in conjunction with the partition cavity 7 of the compartmentalized structure 5.

[0045] To enhance the durability and high-temperature resistance of the compartmentalized structure during use, the compartmentalized structure 5 includes a nine-square grid space formed by a steel structure. The exterior of the compartmentalized structure 5 is a steel structure, and the interior walls are constructed with layers of magnesium-carbon bricks 8.

[0046] The nine-grid structure of the segmented structure 5 is made of fire-resistant board, and a protective layer 9 is provided at the bottom of the segmented structure 5.

[0047] To enhance the durability of the compartment structure 5 and protect the slag tanker body 4 during use, the protective layer 8 consists of an insulating layer 10 and a protective layer 11 from top to bottom. The protective layer 11 is divided into two layers: the first layer is made of masonry magnesia-carbon bricks 12, and the second layer is made of tar dolomite bricks 13.

[0048] In order to form a fire-resistant compartmentalized structure in use, the compartmentalized structure 5 is a hollow cavity. The compartmentalized structure 5 is formed into a nine-square grid space through the fire-resistant boards. The fire-resistant boards include horizontal fire-resistant boards 15 and vertical fire-resistant boards 16. The horizontal fire-resistant boards 15 and vertical fire-resistant boards 16 are made of magnesia-carbon bricks with a thickness of 150mm, forming a vertically intersecting nine-square grid with an effective volume of 2.3m³ per grid.

[0049] To facilitate disassembly and replacement during use, the fire-resistant board is assembled in a detachable manner. The fire-resistant board includes two sets of horizontal fire-resistant boards 15, and the two sets of horizontal fire-resistant boards 15 are detachably connected to the grid structure 5 through the inner wall.

[0050] The above-mentioned detachable and replaceable method is a plug-in type, which is connected by a dovetail groove and a dovetail block. The expansion joint of the connection is filled with aluminum silicate fiber and the service temperature is ≥1400℃.

[0051] The two sets of transverse fire-resistant plates 15 are connected by a number of longitudinal fire-resistant plates 16, and the two sets of transverse fire-resistant plates 15 are connected to the inner wall of the partition structure 5. The longitudinal fire-resistant plates 16 are detachably connected to the two sets of transverse fire-resistant plates 15.

[0052] To facilitate the disassembly of the compartment structure 5 by hoisting during use, the detachable connection between the slag tanker body 4 and the compartment structure 5 is a plug-in connection.

[0053] The slag tanker body 4 has a receiving cavity 17, which is connected to the slag tanker body 4 by bolts or welding. The receiving cavity 17 is an open cavity, and the partition structure 5 is located in the receiving cavity 17. The height of the receiving cavity 17 is one-quarter of the height of the partition structure 5.

[0054] To facilitate the fixing of the compartment structure 5 during use, positioning holes 18 are fixedly provided at the center of the four walls of the open cavity. The positioning holes 18 are coaxially arranged with the positioning channels 19 fixedly provided at the center of the four walls of the compartment structure 5 and are fixed by pins.

[0055] An application of a slag pot non-cutting residual steel processing device based on a refractory compartment structure is described. The slag pot formed by the compartment structure 5 receives steel slag and allows it to cool to a surface temperature of ≤300℃. Then, it is crushed into individual pieces ≤800mm by a hydraulic breaker with an impact energy of 3600J / time. The steel slag is then formed into individual pieces and the residual steel pieces are sorted by an electromagnetic chuck. Finally, the pieces are transported to the converter by a feeding car.

[0056] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0057] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A slag pot residual steel processing device based on a refractory compartment structure, characterized in that: It includes a steelmaking workshop (1) and a steel slag transport track (2) set along the axial direction of the steelmaking workshop (1) and a steel slag processing unit perpendicular to the steel slag transport track (2); The steel slag transport track (2) is provided with a slag tank transport vehicle (3) that moves along the steel slag transport track (2). The slag tank transport vehicle (3) includes a slag tank vehicle body (4) and a grid structure (5) that is detachably connected to the slag tank vehicle body (4). The grid structure (5) adopts a nine-square grid structure. The outer wall of the grid structure (5) is fixedly provided with a first stainless steel anchor (6) by welding.

2. The slag pot non-cutting residual steel processing device based on refractory compartment structure according to claim 1, characterized in that: The compartment structure (5) is detachably connected to the partition cavity (7). The inner wall of the partition cavity (7) is provided with a second stainless steel anchor (8) by welding. The second stainless steel anchor (8) is symmetrically arranged on the opposite inner walls of the partition cavity (7).

3. The slag pot non-cutting residual steel processing device based on a refractory compartment structure according to claim 1 or 2, characterized in that: The grid structure (5) includes a nine-square grid space formed by a steel structure. The grid structure (5) is set with a steel structure on the outside and has a layer of magnesium carbon bricks on the four inner walls. The nine-grid structure of the grid structure (5) is made of fire-resistant board, and a protective layer (9) is provided at the bottom of the grid structure (5).

4. The slag pot non-cutting residual steel processing device based on refractory compartment structure according to claim 3, characterized in that: The protective layer (9) consists of an insulating layer (10) and a protective layer (11) from top to bottom. The protective layer (11) is divided into two layers: the first layer is masonry magnesia-carbon brick (12) and the second layer is tar dolomite brick (13).

5. The slag pot non-cutting residual steel processing device based on refractory compartment structure according to claim 4, characterized in that: The compartmentalized structure (5) is a hollow cavity. The compartmentalized structure (5) forms a nine-square grid space through the fire-resistant board. The fire-resistant board includes a transverse fire-resistant board (15) and a longitudinal fire-resistant board (16).

6. The slag pot non-cutting residual steel processing device based on refractory compartment structure according to claim 5, characterized in that: The fire-resistant board is assembled in a detachable manner. The fire-resistant board includes two sets of horizontal fire-resistant boards (15). The two sets of horizontal fire-resistant boards (15) are connected to the grid structure (5) through the inner wall in a detachable manner. The two sets of transverse fire-resistant plates (15) are connected by a number of longitudinal fire-resistant plates (16) and the two sets of transverse fire-resistant plates (15) are connected to the inner wall of the grid structure (5). The longitudinal fire-resistant plates (16) are detachably connected to the two sets of transverse fire-resistant plates (15).

7. The slag pot non-cutting residual steel processing device based on refractory compartment structure according to claim 6, characterized in that: The detachable connection between the slag tanker body (4) and the compartment structure (5) is a plug-in connection; The slag tanker body (4) forms a receiving cavity (17), which is an open cavity. The compartment structure (5) is located inside the receiving cavity (17), and the height of the receiving cavity (17) is one-quarter of the height of the compartment structure (5).

8. The slag pot non-cutting residual steel processing device based on refractory compartment structure according to claim 7, characterized in that: The open cavity has a fixed positioning hole (18) at the center of its four walls. The positioning hole (18) is coaxially arranged with the positioning channel (19) fixedly opened at the center of the four walls of the partition structure (5) and is fixed by a pin.

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