Desulfurization slag treatment device with tank

Abstract

The utility model relates to the technical field of steel slag treatment in the metallurgical industry, in particular to a desulfurization slag tank treatment device. The desulfurization slag tank treatment device solves the problems that in an existing steel slag treatment device, a movable cover is high in use evaluation rate and prone to damage, and a tank cover is fixed in position. Comprising a guide rail, a trolley, two tank cover supports, a multifunctional fixed tank cover and a slag tank, a spraying device and a dust removal device are arranged in the multifunctional fixed tank cover, the two tank cover supports are located on the two sides of the guide rail respectively, the trolley is located on the guide rail, and the multifunctional fixed tank cover is arranged between the upper portions of the two tank cover supports. And the distance between the two tank cover brackets is greater than the width of the slag tank. Only the tank body is moved, so that the problem that the tank cover is easy to damage due to frequent opening and closing is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of steel slag treatment in the metallurgical industry, and particularly relates to a device for treating desulfurization slag with a ladle. Background Art

[0002] Desulfurization slag is a by-product in the process of iron and steel smelting, which contains a large amount of sulfur and iron elements. Moreover, the desulfurized steel slag also has a certain temperature. For the treatment of desulfurized steel slag, generally, processes such as thermal soaking method and water quenching method are used to cool the desulfurization slag. However, during the cooling process, when cold water meets high temperature, a large amount of steam and dust will be generated. The environmental protection and dust reduction treatment of desulfurization slag has become an urgent problem to be solved.

[0003] In the prior art, CN 212451464 U discloses a device for collecting gas by spraying water on desulfurized steel slag, a device for collecting gas / dust by spraying water on desulfurized steel slag, including a cover device, a cover self-locking device, a cover tilting device, and a bracket. The cover device, the cover self-locking device, and the cover tilting device are all installed on the bracket. The cover can rotate under the action of the tilting device and the cover self-locking device to realize the collection and transportation of sulfur-containing gas and dust during work and the safety lock during non-work.

[0004] CN 107916313B discloses a double-station rotary ladle water slag treatment device, which includes: a column; a hollow support column rotatably installed at the upper end of the column; a driving device, which is provided with a reduction motor that can drive the support column to rotate through a transmission mechanism, and the reduction motor is fixed on the column; a flue gas pipe, the lower end of which is rotatably and sealingly sleeved at the upper end of the support column and is communicated with the inner cavity of the support column; a water spraying smoke hood that can be hermetically covered on the slag ladle, and a smoke outlet protruding from one side thereof is communicated with the inner cavity of the support column, and a water spraying pipeline is fixed in the water spraying smoke hood.

[0005] In the above solutions, the slag ladle containing desulfurization slag is sprayed with water through a movable cover or hood, and then the dust is collected. The movable cover has a high frequency of use and is easy to be damaged. Summary of the Utility Model

[0006] The purpose of the utility model is to solve the problem that in the existing steel slag treatment device, the movable cover has a high usage frequency and is easy to be damaged, and to provide a device for treating desulfurization slag with a ladle with a fixed-position tank cover. The present invention can only move the tank body, avoiding the problem of easy damage caused by frequent opening and closing of the tank cover.

[0007] The technical solution of the utility model is realized by adopting the following technical solution. A desulfurized slag treatment device with a tank, which is characterized in that it includes a guide rail 1, a trolley 2, a tank cover support 3, a multi-functional fixed tank cover 4, and a slag tank 5. A spraying device and a dust removal device are arranged in the multi-functional fixed tank cover 4. There are two tank cover supports 3, which are respectively located on both sides of the guide rail 1. The trolley 2 is located on the guide rail 1. The multi-functional fixed tank cover 4 is arranged between the upper parts of the two tank cover supports 3, and the distance between the two tank cover supports 3 is greater than the width of the slag tank 5.

[0008] The slag tank filled with desulfurized slag is lifted onto the trolley by a crane, and the trolley is driven to transport the slag tank under the multi-functional fixed tank cover. At this time, a relatively closed space is formed inside the tank. A spraying system and a dust collection device are arranged in the tank cover to collect steam and smoke and perform water injection, cooling, and digestion operations through the tank cover. After the operation is completed, the trolley is started to move away from the position of the tank cover, and then the slag tank is transported to the crane lifting position to complete the desulfurized slag treatment process.

[0009] The entire treatment process takes about 10 hours. During the process, the high-temperature desulfurized slag is rapidly cooled and broken when encountering water, and a large amount of steam is generated, which promotes the accelerated digestion of the steel slag under the action of steam, so that the free calcium oxide and magnesium oxide in the steel slag are fully digested. The treated steel slag has good stability and is conducive to the later utilization of the steel slag. After the steel slag is granulated, the separation of slag and iron is more thorough, which is convenient for magnetic separation.

[0010] Compared with the prior art, the utility model adopts the structural design of a fixed-position tank cover support 3 and a fixed-position multi-functional fixed tank cover 4. The slag tank is continuously sent to the preset position by the moving trolley 2 to realize the rapid and efficient treatment of desulfurized slag. The fixed tank cover has a low damage rate and a long service life. Description of the Drawings

[0011] Figure 1 It is a structural schematic diagram of the utility model

[0012] Figure 2 It is a side view of the utility model Detailed Embodiments

[0013] The following further elaborates the utility model in conjunction with the drawings and specific embodiments. It should be noted here that the description of these embodiment modes is used to help understand the utility model, but does not constitute a limitation to the utility model. The specific structural and functional details disclosed herein are only used to describe the exemplary embodiments of the utility model. However, the utility model can be embodied in many alternative forms and should not be construed as being limited to the embodiments described herein.

[0014] It should be understood that the terms first, second, etc. are only used for descriptive distinction and should not be construed as indicating or implying relative importance. Although the terms first, second, etc. may be used herein to describe various units, these units should not be limited by these terms. These terms are only used to distinguish one unit from another. For example, the first unit may be referred to as the second unit, and similarly, the second unit may be referred to as the first unit, without departing from the scope of the exemplary embodiments of the present invention.

[0015] It should be understood that the term "and / or" herein is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, B exists alone, and A and B exist simultaneously. The term " / and" herein describes another association object relationship, indicating that two relationships may exist.

[0016] For example, A / and B may represent: A exists alone, and A and B exist alone. In addition, the character " / " herein generally indicates that the associated objects before and after are in an "or" relationship.

[0017] It should be understood that in the description of the present invention, the orientation or positional relationship indicated by the terms "upper", "vertical", "inner", "outer", etc. is the orientation or positional relationship in which the product of the present invention is customarily placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0018] It should be understood that when a unit is referred to as "connected", "coupled" or "linked" to another unit, it may be directly connected or coupled to the other unit, or an intermediate unit may exist. In contrast, when a unit is referred to as "directly connected" or "directly coupled" to another unit, there is no intermediate unit. Other words used to describe the relationship between units should be interpreted in a similar manner (for example, "between" vs. "directly between", "adjacent" vs. "directly adjacent", etc.).

[0019] In the description of the present invention, it should also be noted that unless otherwise clearly specified and defined, the terms "arranged", "installed", "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] The terms used in this document are only for describing specific embodiments and are not intended to limit the exemplary embodiments of the present utility model. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms "comprises", "comprising", "includes" and / or "including" when used herein specify the presence of the stated features, integers, steps, operations, units and / or components, and do not preclude the presence or addition of one or more other features, quantities, steps, operations, units, components and / or their combinations.

[0021] It should also be noted that in some alternative embodiments, the functions / actions that occur may be different from the order shown in the drawings. For example, depending on the functions / actions involved, they may actually be executed substantially concurrently, or sometimes the two continuously shown figures may be executed in the reverse order.

[0022] Specific details are provided in the following description to facilitate a complete understanding of the exemplary embodiments. However, those of ordinary skill in the art should understand that the exemplary embodiments can be implemented without these specific details. For example, a system may be shown in a block diagram to avoid obscuring the example with unnecessary details. In other embodiments, well-known processes, structures and technologies may not be shown with unnecessary details to avoid obscuring the exemplary embodiments.

[0023] As Figure 1 、 2 As shown, a desulfurized slag tank handling device has a structure including a guide rail 1, a trolley 2, a tank cover support 3, a multi-functional fixed tank cover 4, and a slag tank 5 located on the ground. The multi-functional fixed tank cover 4 is provided with a spraying device and a dust removal device.

[0024] There are two tank cover supports 3, which are respectively located on both sides of the guide rail 1. The trolley 2 is located on the guide rail 1. The multi-functional fixed tank cover 4 is arranged between the upper parts of the two tank cover supports 3. The distance between the two tank cover supports 3 is greater than the width of the slag tank 5 to ensure that the slag tank 5 can pass through smoothly between the two tank cover supports 3. The spraying device includes a main spraying pipe 13. Spray branch pipes 7 are connected to the main spraying pipe 13, and nozzles 8 are provided on the spray branch pipes 7. Cooling water enters the spray branch pipes 7 through the main spraying pipe 13, and the slag below is sprayed and cooled by the nozzles 8 at different positions of the spray branch pipes 7. The main spraying pipe 13 passes through the multi-functional fixed tank cover 4, and the spray branch pipes 7 are located below the multi-functional fixed tank cover 4. The spray branch pipes 7 are annular or square, which can be adapted to slag tanks of different sizes and shapes for use.

[0025] The dust removal device is a dust removal pipe. One end of the dust removal pipe passes through the multi-functional fixed tank cover 4, and the other end is connected to a dust removal fan. A large amount of dust generated during cooling is directly sucked away through the dust removal pipe and then centrally dust-removed to avoid environmental pollution.

[0026] Below the trolley 2 are track wheels 11, and the track wheels 11 are driven by a motor 12. The track wheels 11 move on a guide rail 1. Through motor drive, the running speed and position of the trolley can be precisely controlled.

[0027] On both sides of the slag pot 5 are positioning shafts 9, and above the trolley 2 is a bracket 10. The slag pot 5 is arranged on the bracket 10 through the positioning shafts 9. The slag pot 5 can rotate laterally and be positioned through the positioning shafts 9, making the slag pot 5 stable.

Claims

1. A device for treating desulfurization slag with a ladle, characterized in that: It includes a guide rail (1), a trolley (2), a tank cover support (3), a multi-functional fixed tank cover (4), and a slag pot (5). A spraying device and a dust removal device are provided inside the multi-functional fixed tank cover (4). There are two tank cover supports (3), which are respectively located on both sides of the guide rail (1). The trolley (2) is located on the guide rail (1). The multi-functional fixed tank cover (4) is arranged between the upper parts of the two tank cover supports (3), and the distance between the two tank cover supports (3) is greater than the width of the slag pot (5).

2. The desulfurized slag treatment device with a ladle according to claim 1, characterized in that: The spraying device includes a main spraying pipe (13), and spraying branch pipes (7) are connected to the main spraying pipe (13). Nozzles (8) are provided on the spraying branch pipes (7).

3. The desulfurized slag treatment device with a ladle according to claim 2, characterized in that: The main spraying pipe (13) passes through the multi-functional fixed tank cover (4), and the spraying branch pipes (7) are located below the multi-functional fixed tank cover (4).

4. The desulfurized slag treatment device with a ladle according to claim 2, characterized in that: The spraying branch pipes (7) are annular or square.

5. The desulfurized slag treatment device with a ladle according to claim 1, characterized in that: The dust removal device is a dust removal pipe. One end of the dust removal pipe passes through the multi-functional fixed tank cover (4), and the other end is connected to a dust removal fan.

6. The desulfurized slag treatment device with a ladle according to claim 1, characterized in that: Below the trolley (2) are track wheels (11), and the track wheels (11) are driven by a motor (12).

7. The desulfurized slag treatment device with a ladle according to claim 6, characterized in that: The track wheels (11) move on the guide rail (1).

8. The desulfurized slag treatment device with a ladle according to claim 1, characterized in that: Positioning shafts (9) are provided on both sides of the slag pot (5), and a support (10) is provided above the trolley (2). The slag pot (5) is arranged on the support (10) through the positioning shafts (9).

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