Movable dust removal equipment for steel ladle hot repair

Abstract

The utility model relates to movable dust removal equipment for hot repair of a steel ladle, and belongs to the field of environment-friendly dust removal. The dust removal device comprises a supporting base, a dust removal fan, a bag-type dust remover, a steel ladle hot repair operation platform, a steel ladle base and a dust removal cover. The dedusting cover can stretch and retract along the section steel in a reciprocating mode and covers the steel ladle during working, the draught fan is started, and an operator conducts hot repair on the operation platform. And after the work is finished, the dust removal cover shrinks and moves to the original position, and the crown block lifts out the steel ladle subjected to hot repair. During working, the steel ladle is hoisted on the steel ladle base, the hub motor is started, the movable cover of the dust hood extends to the opening of the left dust hood in the length direction of the base, then the hub motor is closed, the steel ladle is covered with the unfolded movable cover, the fan is started, an operator carries out hot repair on the operation platform, and after work is finished, the hub motor is started to rotate in the opposite direction. And the dust removal cover shrinks and moves to the original position, and the crown block lifts out the steel ladle subjected to hot repair. According to the device, the defects of a traditional centralized dust removal pipeline are overcome, and low-carbon and energy-saving operation is realized.

Description

Technical Field

[0001] This utility model belongs to the field of environmental protection and dust removal, and relates to a mobile dust removal device for hot repair of steel ladles. Background Technology

[0002] In steel production, the sliding gate mechanism of the ladle is a critical piece of equipment used to control the outflow of slag and molten steel, as well as to regulate temperature and the amount of alloys added. To ensure the safety and quality of steel production, hot repairs of the ladle are essential to maintain the normal operation of the sliding gate mechanism. During oxygen blowing operations, due to the reaction of oxygen with the steel slag and the pressure brought in by the oxygen, a large amount of flue gas is instantly generated at the top of the ladle, causing serious pollution to workers' work areas and also polluting the environment when it spills into the atmosphere.

[0003] Traditional dust collection solutions typically employ mobile hoods combined with centralized dust collection duct networks. However, this approach requires maintaining sufficient air pressure within the ductwork at all times, and the poor sealing of the mobile ducts leads to excessive energy consumption. Furthermore, the complex duct network and difficult pipe layout limit the effectiveness and scope of traditional dust collection solutions. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a mobile dust removal device for hot repair of steel ladles to solve the above-mentioned technical problems. By improving the structure and working method of the dust removal device, it aims to improve dust removal efficiency, reduce energy consumption, and simplify pipeline layout, thereby achieving more environmentally friendly and economical operation in the steel production process.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A mobile dust removal device for hot repair of steel ladles includes:

[0007] The support module includes a steel frame support base with guide plates on both sides along its length.

[0008] The dust removal module includes a dust removal fan, a bag filter, and connecting pipes;

[0009] The operation module includes a ladle hot repair operation platform;

[0010] A ladle support module, including a ladle base, for placing the ladle;

[0011] A dust removal hood module includes a dust removal hood with a movable hood inside. The movable hood is connected to a support base via a telescopic scissor frame structure. The dust removal hood has two suction ports. One end of the movable hood is fixed to one of the suction ports, and the other end of the movable hood is configured to move along the length of the support base to the other suction port.

[0012] The drive module is used to control the extension and retraction of the dust collector hood.

[0013] Optionally, the bag filter is equipped with a folded filter cartridge, a spark catcher, a dust hopper, and a screw conveyor.

[0014] Optionally, the dust cover has a door-shaped cross-section.

[0015] Optionally, one of the dust hood openings is open on both sides along the length direction, while the other dust hood opening is closed on the side and has an observation and operation hole.

[0016] Optionally, the telescopic scissor frame structure in the dust removal hood module is composed of multiple portal frames and scissor frames hinged together, with high-temperature resistant flexible material installed on the inner side, which unfolds or folds with the scissor frame.

[0017] Optionally, the ladle base in the ladle bearing module is located between the two dust suction hood openings of the dust removal hood, and its axial direction is parallel to the guide plate of the support base.

[0018] Optionally, the observation port in the dust hood module is configured to be openable and closable for purging nitrogen or observing hot repair operations.

[0019] Optionally, the bag filter in the dust removal module intercepts sparks in the high-temperature flue gas using a spark capture net, and outputs the dust from the ash hopper using a screw conveyor.

[0020] Optionally, the ladle hot repair operation platform is a steel frame structure, equipped with a ladder, guardrails and a rotating boom.

[0021] Optionally, the drive module includes a hub motor and several pairs of rolling wheels, wherein the hub motor drives the outermost pair of rolling wheels.

[0022] The beneficial effects of this utility model are as follows:

[0023] Improved dust removal efficiency: By improving the structure and operation of the dust removal device, this utility model can more effectively capture and remove the flue gas generated during the hot repair of steel ladles, reduce pollution to workers' operating positions, and prevent the flue gas from escaping into the atmosphere, thereby improving the working environment and air quality.

[0024] Reduced energy consumption: This invention eliminates the need for traditional centralized dust collection pipes, avoiding excessive draft and dust spillage, thus achieving low-carbon and energy-saving operation. By optimizing the design of the dust collection device, energy consumption is reduced and energy utilization efficiency is improved.

[0025] Simplified pipeline layout: By adopting a mobile dust removal device, this utility model avoids the complex pipeline layout in traditional dust removal schemes, simplifies the installation and maintenance of the dust removal system, and reduces project costs.

[0026] Improved ease of operation: The dust removal device of this utility model has a compact structure and flexible operation mode, which can quickly respond to the dust removal needs in the hot repair process of steel ladle, thus improving the ease of operation and efficiency.

[0027] Improving worker health: By effectively reducing the pollution of workers' work areas by flue gas, this utility model helps to improve the working environment of workers, reduce the occurrence of occupational diseases, and protect the health and safety of workers.

[0028] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, wherein:

[0030] Figure 1 This is the front view of the dust removal device;

[0031] Figure 2 for Figure 1 View from direction A;

[0032] Figure 3 for Figure 1 View from direction B;

[0033] Figure 4 This is a top view of the dust removal device;

[0034] Figure 5 This is a schematic diagram of dust removal during hot repair of a steel ladle. Figure 5 (1) is a schematic diagram before hot repair. Figure 5 (2) A schematic diagram of the ladle being hoisted onto the ladle base during hot maintenance and dust removal. Figure 5 (3) is a schematic diagram of the dust collector hood being stretched and moved on the support base. Figure 5 (4) This is a diagram showing the completion of the hot repair work. Figure 5 (5) A schematic diagram of the steel ladle that has been hot-repaired being lifted out by the overhead crane.

[0035] Figure reference numerals: (1) Fan (2) Bag filter (2-1) Folded filter cartridge (2-2) Ash hopper (2-3) Screw conveyor (2-4) Spark filter (3) Steel ladle hot repair operation platform (3-1) Ladder (3-2) Rotary boom (4) Steel ladle (5) Steel ladle base (6) Dust hood (6-1) Dust suction hood (6-2) Hub (6-3) Door row (7) Support base (8) Air inlet pipe (9) Air outlet pipe Detailed Implementation

[0036] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this utility model. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0037] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the present invention. To better illustrate the embodiments of the present invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0038] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "front," and "rear" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the 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, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0039] Please see Figures 1-5 This is a mobile dust removal device for hot repair of steel ladles. The device includes a support base 7, on which a dust removal hood 6 is mounted. The dust removal hood consists of two gates 6-3 parallel to the length of the steel profile, a hub 6-2, and a heat-resistant door sealing plate on the top surface, forming a telescopic and movable dust removal hood cart. The heat-resistant door sealing plate on the dust removal hood cart moves and folds together with the gates 6-3. The dust removal hood 6 is perpendicular to two sides of the steel profile and has two dust removal hood openings 6-1. These two openings are connected to a dust collector through an air inlet pipe 8. A steel ladle base 4 is located between the two dust removal hood openings, and the steel ladle 5 can be hoisted onto the base.

[0040] A baghouse dust collector 2 is installed on the other side of the support base 7. A spark filter 2-4 is installed at the dust collector inlet to filter sparks from the flue gas. To improve dust removal efficiency, the dust collector preferentially uses a folded filter cartridge 2-1. During operation, the collected dust falls into the ash hopper 2-3, and is then conveyed out of the device by a screw conveyor 2-4 for docking with ton bags or ash trucks. The fan 1 is located on one side of the baghouse dust collector and is connected to it via the outlet pipe 9. The ladle hot repair operation platform 3 is also a steel frame structure, installed between the dust suction hood 6-2 and the dust collector 2. A ladder 3-1 is installed at the bottom of the platform, and steel plates and guardrails are laid on top, with a rotating boom 3-2 installed.

[0041] The following is a schematic diagram of the working state of this device, corresponding to... Figure 5 (1)~(5):

[0042] (1) Before hot repair, the dust cover is in a retracted state: Before the hot repair begins, the dust cover 6 is in a retracted state, that is, the movable cover part of the dust cover is retracted onto the support base 7. At this time, the two door panels 6-3 and the hub 6-2 of the dust cover, as well as the heat-resistant door panel at the top, are folded to form a compact unit, which is convenient for transportation and storage.

[0043] (2) During hot repair and dust removal of the ladle, the ladle 5 is hoisted onto the ladle base 4: When hot repair of the ladle is required, the ladle 5 is first hoisted onto the ladle base 4. The ladle base 4 is located between the two dust suction hood openings of the dust removal hood 6 to ensure that the ladle can be effectively covered by the dust removal hood during the hot repair process.

[0044] (3) The dust hood 6 begins to extend and move on the support base via remote control. The hub motor is started, and the movable dust hood extends along the length of the base to the left suction hood opening. The hub motor is then turned off, and the extended movable hood covers the ladle. The fan 1 is turned on, and the operator operates the rotating boom 3-1 on the ladle hot repair platform 3 to suspend hot repair tools for tasks such as replacing the sliding gate nozzle. After the ladle is hoisted into place, the dust hood 6 is extended and moved via remote control. At this time, the movable part of the dust hood moves along the length of the support base 7 until it reaches the left suction hood opening. Then the hub motor is turned off, and the extended movable hood completely covers the ladle. Simultaneously, the fan 1 is turned on to begin the dust removal process. The operator, positioned on the ladle hot repair platform 3, operates the rotating boom 3-1 to suspend hot repair tools for tasks such as replacing the sliding gate nozzle.

[0045] (4) After the hot repair work is completed, the fan 1 is turned off and the hub motor is started to run in the opposite direction. The door panels 6-3 and hub 6-2 on both sides of the dust cover 6 are retracted and moved to their original positions. When the hot repair work is completed, the fan 1 is turned off first, and then the hub motor is started to run in the opposite direction, so that the door panels 6-3 and hub 6-2 on both sides of the dust cover 6 and the heat-resistant door sealing plate on the top are retracted and moved to their original positions. That is, the movable cover part of the dust cover is retracted onto the support base 7 and returned to the retracted state.

[0046] (5) The crane has completed hoisting out.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of this technical solution, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A mobile dust removal equipment for hot repair of a ladle, characterized in that, include: The support module includes a support base (7) with a steel frame structure, and guide plates are provided on both sides along the length direction; The dust removal module includes a dust removal fan (1), a bag filter (2), and connecting pipes; The operation module includes a ladle hot repair operation platform (3); The ladle support module includes a ladle base (5) for placing the ladle (4); The dust removal hood module includes a dust removal hood (6) with a movable hood inside. The movable hood is connected to the support base (7) via a telescopic scissor frame structure. The dust removal hood (6) has two suction hood openings (6-1). One end of the movable hood is fixed to one of the suction hood openings, and the other end of the movable hood is configured to move along the length of the support base (7) to the other suction hood opening. The drive module is used to control the telescopic movement of the dust cover (6).

2. The mobile dust removal apparatus for hot repair of a ladle according to claim 1, characterized by The bag filter (2) is equipped with a folded filter cartridge (2-1), a spark catcher (2-4), a dust hopper (2-2), and a screw conveyor (2-3).

3. The mobile dust removal apparatus for hot repair of a ladle according to claim 1, characterized by The dust cover (6) has a door-shaped cross-section.

4. The mobile dust removal apparatus for hot repair of a ladle according to claim 1, characterized by One of the dust hood openings is open on both sides along its length, while the other dust hood opening is closed on the side and has an observation and operation hole.

5. The mobile dust removal apparatus for hot repair of a ladle according to claim 1, characterized by The telescopic scissor frame structure in the dust removal hood module is composed of multiple portal frames and scissor frames hinged together, with high-temperature resistant flexible material installed on the inner side, which unfolds or folds with the scissor frame.

6. The mobile dust removal apparatus for hot repair of a ladle according to claim 1, characterized by The ladle base (5) in the ladle bearing module is located between the two dust suction hood openings of the dust removal hood (6), and its axial direction is parallel to the guide plate of the support base (7).

7. The mobile dust removal apparatus for hot repair of a ladle according to claim 1, characterized by The observation and operation port in the dust removal hood module is configured to be openable and closable for purging nitrogen or observing hot repair operations.

8. The mobile dust removal apparatus for hot repair of a ladle according to claim 2, characterized by The bag filter (2) in the dust removal module intercepts sparks in the high-temperature flue gas through a spark capture net (2-4) and outputs the dust in the ash hopper (2-2) through a screw conveyor (2-3).

9. The mobile dust removal apparatus for hot repair of a ladle according to claim 1, characterized by The ladle hot repair operation platform (3) is a steel frame structure, equipped with a ladder (3-1), guardrails and a rotating boom (3-2).

10. The mobile dust removal apparatus for hot repair of a ladle according to claim 1, characterized by The drive module includes a hub motor and several pairs of rolling wheels, with the hub motor driving the outermost pair of rolling wheels.

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