Movable dust removal equipment for steel ladle hot repair

Abstract

The utility model relates to movable dust removal equipment for steel ladle hot repair, and belongs to the field of steelmaking continuous casting dust removal. The two guide rails and the two supporting bridges are fixedly arranged on the ground; the multiple hubs are arranged on the supporting bridge frame and connected to the guide rails in a rolling mode. The dust hood is mounted on the supporting bridge frame, and a bag type dust collector and a fan are mounted at the top of the dust hood; an air inlet pipe is fixedly arranged at an inlet of the bag type dust collector and is communicated to a dust collection cover opening of the dust collection cover; an outlet of the bag type dust collector is fixedly provided with an air outlet pipe, the air outlet pipe is communicated to a draught fan, the device travels to the position above a steel ladle to be subjected to hot repair, the dust removal mode is started before the steel ladle is subjected to hot repair, and by means of the sealing characteristic of the dust removal device, excessive wild wind suction is avoided, and dust overflow is avoided. When the steel ladle is subjected to hot repair, the fan is started; and when no task exists, the fan operates at low frequency or stops, so that the operation cost can be greatly saved, and considerable social benefits are achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of steel ladle continuous casting dust removal, and relates to a mobile dust removal equipment for steel ladle hot repair. BACKGROUND

[0002] The steel ladle slide nozzle mechanism is an important equipment in the steel production process, and is mainly used for controlling slag outflow and molten steel outflow, adjusting temperature and alloy addition amount, etc. In order to ensure the safety and quality of steel production, the steel ladle hot repair must be carried out to ensure the normal operation of the steel ladle slide nozzle mechanism.

[0003] The steel ladle hot repair will generate a large amount of spark dust, and the traditional steel ladle hot repair dust removal adopts a scheme of a mobile cover plus a centralized dust removal pipe network. The scheme needs to ensure that there is sufficient pressure in the pipeline at any time, and the sealing performance of the mobile pipeline is poor, which leads to high energy consumption. In addition, during centralized dust removal, the pipeline needs to be arranged in the workshop, and for some workshops, the pipeline arrangement is difficult. UTILITY MODEL CONTENTS

[0004] Therefore, the utility model aims to provide a mobile dust removal equipment for steel ladle hot repair, which aims to reduce the energy consumption required for dust removal operation in the steel ladle hot repair process.

[0005] To achieve the above-mentioned purpose, the utility model provides a mobile dust removal equipment for steel ladle hot repair: including two guide rails and two support bridge frames which are fixed on the ground;

[0006] A plurality of hubs are arranged on the support bridge frame and are rollingly connected to the guide rail;

[0007] The dust removal cover is installed on the support bridge frame, and a bag-type dust collector and a fan are installed on the top of the dust removal cover;

[0008] The inlet of the bag-type dust collector is fixedly provided with an air inlet pipe which is communicated to the dust suction cover opening of the dust removal cover;

[0009] The outlet of the bag-type dust collector is fixedly provided with an air outlet pipe which is communicated to the fan.

[0010] Optionally, the bottom of each of the two support bridge frames is provided with a bearing seat, the inner ring inner wall of the bearing seat is fixedly provided with a support shaft, and the hub is installed on the support shaft; the hub is four, and each two hubs are arranged on the two support bridge frames in opposition, one group of hubs is a driving wheel, and the other group of hubs is a driven wheel; a motor reducer is fixedly arranged on one side of the bearing seat, and the motor reducer is connected with the support shaft of the driving wheel.

[0011] Optionally, the top of the dust removal cover is provided with a sealing steel plate, a plurality of steel ladle bases are uniformly arranged in the middle of the two guide rails along the extension direction of the guide rail, and the steel ladle bases are placed with steel ladles.

[0012] Optionally, the bag type dust collector is a temperature-resistant folding filter cartridge, a spark filter screen is arranged at the inlet of the bag type dust collector, a dust hopper is arranged at the bottom of the bag type dust collector, a screw dust conveyor is arranged at the bottom of the dust hopper, a dust bin is installed at one end of the screw dust conveyor, and a dust discharge valve is arranged at the bottom of the dust bin.

[0013] Optionally, an electric hoist is hung at the top of the side of the dust hood.

[0014] Optionally, an operation platform is arranged opposite to the ladle base, a sealing steel plate is installed opposite to the operation platform and is provided with an observation operation window, and electric accumulation doors are installed on the two sides of the dust hood along the extension direction of the guide rail.

[0015] Optionally, a rotatable hoist arm is installed on the operation platform, the axial direction of the ladle base is perpendicular to the direction of the guide rail, and the tail of the ladle is on the same side of the operation platform.

[0016] Optionally, a damping pad is installed at the fixed connection position at the bottom of the fan.

[0017] The beneficial effects of the steel ladle hot repair mobile dust removal equipment are as follows:

[0018] The steel ladle hot repair mobile dust removal equipment provided by the utility model drives the dust removal equipment to the upper side of the steel ladle to be hot repaired, opens the dust removal mode before the hot repair of the steel ladle, utilizes the sealing characteristics of the dust removal device, avoids the suction of too much wild wind and the overflow of dust.

[0019] Other advantages, objects and features of the utility model will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the study of the following text or can be taught from the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to make the purpose, technical scheme and advantages of the utility model more clear, the utility model will be described in detail below with reference to the drawings, and the drawings are as follows:

[0021] Figure 1 A front view structural schematic diagram of the steel ladle hot repair mobile dust removal equipment is provided in the utility model;

[0022] Figure 2 A top view structural schematic diagram of the steel ladle hot repair mobile dust removal equipment is provided in the utility model;

[0023] Figure 3 A sectional view structural schematic diagram of the steel ladle hot repair mobile dust removal equipment is provided in the utility model;

[0024] Figure 4 A front view structural schematic view of a mobile dust removal equipment for steel ladle hot repair is provided in the utility model.

[0025] Figure 5 A side view structural schematic view of a mobile dust removal equipment for steel ladle hot repair is provided in the utility model.

[0026] Reference signs:

[0027] 1, support bridge; 2 - bearing seat; 3 - support shaft; 4 - wheel hub; 5 - dust cover; 5-1 - dust cover mouth; 5-2 - electric accumulation door; 5-3 - electric hoist; 5-4 - reinforcing rib; 5-5 - observation operation window; 6 - bag type dust collector; 6-1 - folding filter cartridge; 6-2 - spark filter screen; 6-3 - ash bucket; 6-4 - spiral ash conveying machine; 6-5 - ash bin; 6-6 - ash discharge valve; 7 - air inlet pipe; 8 - air outlet pipe; 9 - fan; 10 - motor reducer; 11 - guide rail; 12 - steel ladle base; 13 - steel ladle; 14 - operation platform; 14-1 - rotating boom. DETAILED DESCRIPTION

[0028] The embodiments of the present application will be described in detail with specific examples. Those skilled in the art can easily understand other advantages and functions of the present application from the content disclosed in the specification. The present application can also be implemented or applied in other different embodiments, and each detail in the specification can be modified or changed based on different views and applications without departing from the spirit of the present application. It should be noted that the drawings provided in the following examples only illustrate the basic concept of the present application in a schematic manner, and the following examples and features in the examples can be combined with each other without conflict.

[0029] Wherein, the drawings are only used for example description, and the representation is only a schematic diagram, not a physical diagram, and cannot be understood as a limitation of the present application; in order to better illustrate the embodiments of the present application, some components in the drawings are omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some known structures and their descriptions in the drawings can be omitted.

[0030] The same or similar reference signs in the drawings of the embodiments of the present application correspond to the same or similar components; in the description of the present application, it should be understood that, if the orientations or position relationships indicated by the terms "upper", "lower", "left", "right", "front", "back" and the like are based on the orientations or position relationships shown in the drawings, they are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation and be operated, therefore, the terms describing the position relationship in the drawings are only used for exemplary illustration, and cannot be understood as a limitation on the present application, and for ordinary skilled persons in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0031] Please refer to Figures 1-5 The present application is a kind of mobile dust removal equipment for ladle hot repair, which mainly comprises two guide rails 11 fixed on the ground and two support bridge frames 1. A plurality of wheel hubs 4 are installed on the support bridge frame 1, which are in rolling connection with the guide rails 11, so that the entire equipment can move along the guide rails 11.

[0032] A dust removal cover 5 is also installed on the support bridge frame 1. The top of the dust removal cover 5 is equipped with a bag-type dust collector 6 and a fan 9. The inlet of the bag-type dust collector 6 is connected to the dust suction port 5-1 of the dust removal cover 5 through an air inlet pipe 7 to ensure the dust suction effect. At the same time, the outlet of the bag-type dust collector 6 is connected to the fan 9 through an air outlet pipe 8 to form a complete dust removal system.

[0033] Two bearing seats 2 are installed at the bottom of each of the two support bridge frames 1, and a support shaft 3 is fixed to the inner wall of the inner ring of the bearing seat 2. The wheel hub 4 is installed on the support shaft 3. The present application has a total of four wheel hubs 4, which are arranged in pairs on the two support bridge frames 1. One pair is a driving wheel driven by a motor reducer 10, and the other pair is a driven wheel.

[0034] A sealing steel plate is provided at the top of the dust removal cover 5 to enhance the dust removal effect. Between the two guide rails 11, a plurality of ladle bases 12 are uniformly arranged along the extension direction of the guide rails 11 for placing the ladle 13. Such a layout not only ensures the dust removal efficiency, but also facilitates the placement and movement of the ladle 13.

[0035] The bag-type dust collector 6 adopts a temperature-resistant folding filter cartridge 6-1, and a spark filter screen 6-2 is provided at the inlet to prevent sparks from entering. A hopper 6-3 is provided at the bottom, and the bottom of the hopper 6-3 is connected to a screw ash conveyor 6-4. One end of the screw ash conveyor 6-4 is connected to an ash bin 6-5, and a dust discharge valve 6-6 is provided at the bottom of the ash bin 6-5 to realize effective collection and discharge of dust removal ash.

[0036] An electric hoist 5-3 is hung at the top of the side of the dust removal cover 5, which is convenient for lifting hydraulic motors or other heavy objects.

[0037] An operating platform 14 is arranged opposite the ladle base 12, and a sealing steel plate is arranged opposite the operating platform and is provided with an observation operating window 5-5. Along the extension direction of the guide rail 11, electric accumulation doors 5-2 are arranged on two sides of the dust cover 5, and the electric accumulation doors 5-2 are in an open state in a non-working state, so as to facilitate the entry and exit of equipment and personnel. In working, the electric accumulation doors 5-2 are closed to form a closed space and improve the dust removal effect

[0038] A rotatable hoist arm 14-1 is arranged on the operating platform 14. The axial direction of the ladle base 12 is perpendicular to the direction of the guide rail 11, and the tail of the ladle 13 is on the same side of the operating platform 14. Such a layout facilitates the maintenance and replacement of the ladle slide gate by the operator.

[0039] A damping pad is arranged at the fixed connection position of the bottom of the fan 9, which effectively reduces the vibration and noise of the fan 9 during operation.

[0040] The working principle of the mobile dust removal equipment for the ladle hot repair provided by the utility model is as follows:

[0041] The mobile dust removal equipment is integrally arranged on the guide rail 11, the wheel hubs 4 are arranged through the support shafts 3, the bearing seats 2 and the support bridge frames 1 to form a wheel set, the left and right wheel sets are arranged through the dust covers 5 to form a four-wheel dust cover vehicle, the accumulation doors 5-2 are arranged on two sides of the dust cover 5 along the guide rail, one side of the dust cover 5 is sealed by a steel plate perpendicularly to the guide rail 11, and the side close to the operating platform 14 is partially sealed, and sufficient area is reserved for operation, the bottom of the dust cover 5 is provided with reinforcing ribs 5-4 for facilitating the operator to approach and operate. Two dust cover openings 5-1 are arranged at the top of the dust cover 5, and the dust cover openings 5-1 are connected with the dust collector air inlet pipe 7. The top of the dust cover 5 is sealed by a steel plate, the bag-type dust collector 6 is arranged on the original steel structure, the spark filter screen 6-2 is arranged at the inlet of the bag-type dust collector 6, the inlet flue gas is folded back downward, and the sparks in the flue gas are filtered. In order to improve the filtering area per unit space of the dust collector, the folding filter cylinder 6-1 is preferentially adopted, the dust collected during work falls into the ash hopper 6-3, the ash is conveyed to the ash bin 6-5 through the screw ash conveying machine 6-4, the ash valve 6-6 is arranged at the bottom of the ash bin 6-5, and ton bags or ash conveying vehicles can be connected. The bag-type dust collector 6 air outlet pipe 8 is connected with the fan 9, and the damping pad 9-1 is arranged at the bottom of the fan 9 to reduce the vibration amplitude of the fan 9.

[0042] A plurality of ladle bases 12 are arranged along the extension direction of the guide rail 11, and the ladle 13 can be hoisted. According to the requirement, the bottom surface of the ladle 13 and the operating platform 14 are arranged in a row on two sides of the steel rail, and the bottom surface of the ladle 13 and the operating platform 14 are required to be spaced apart from the steel rail to prevent collision with the mobile dust removal device.

[0043] When the ladle is hot repaired and dedusted, the ladle 13 is hoisted to the designated ladle base 12, the motor reducer 10 of the mobile dedusting device is started, the motor connected to the motor reducer 10 drives the mobile dedusting device to the upper side of the ladle 13, the two side accumulation doors 5-2 are closed, the fan 9 is started, the rotating hoist arm 14-1 or the electric hoist 5-3 is operated, the hot repair tool is hung and the slide gate is replaced, etc. The operation platform 14 opposite the sealing plate is provided with an observation operation window 5-5, and the operation can be performed according to the requirement.

[0044] When the hot repair work is completed, the fan 9 is closed, the two side accumulation doors 5-2 are opened, the motor reducer 10 of the mobile dedusting device is started to leave the ladle 13 being hot repaired, the overhead crane hoists out the ladle 13 being hot repaired, and the hot repair task is completed. According to the arrangement of the work station, one mobile dedusting device can be used in multiple hot repair work stations, the device is driven to the upper side of the ladle 13 being hot repaired, the dedusting mode is started before the ladle 13 is hot repaired, the sealing characteristic of the dedusting device is utilized to avoid too much wild wind from being sucked and avoid the dust from overflowing. When the ladle 13 is hot repaired, the fan 9 is started, and when there is no task, the fan 9 is operated at low frequency or stopped, so that the operation cost can be greatly saved, and the social benefit is considerable.

[0045] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. A mobile dust removal device for hot repair of steel ladles, characterized in that: It includes two guide rails (11) fixed to the ground and two supporting cable trays (1); Multiple hubs (4) are mounted on the support bridge (1) and are rotatably connected to the guide rail (11); a dust collector (5) is mounted on the support bridge (1), and a bag filter (6) and a fan (9) are mounted on the top of the dust collector (5); an air inlet pipe (7) is fixedly provided at the inlet of the bag filter (6), and the air inlet pipe (7) is connected to the dust suction port (5-1) of the dust collector (5); an air outlet pipe (8) is fixedly provided at the outlet of the bag filter (6), and the air outlet pipe (8) is connected to the fan (9).

2. The mobile dust removal equipment for hot repair of steel ladles according to claim 1, characterized in that: Bearing seats (2) are installed at the bottom of both support bridges (1). A support shaft (3) is fixed on the inner wall of the inner ring of the bearing seat (2). The hub (4) is installed on the support shaft (3). There are four hubs (4), which are arranged in pairs on the two support bridges (1). One set of hubs (4) is the drive wheel, and the other set of hubs (4) is the driven wheel. A motor reducer (10) is fixed on one side of the bearing seat (2). The motor reducer (10) is connected to the support shaft (3) of the drive wheel.

3. The mobile dust removal equipment for hot repair of steel ladles according to claim 1, characterized in that: The top of the dust hood (5) is provided with a sealing steel plate; along the extension direction of the guide rail (11), several steel ladle bases (12) are evenly arranged between the two guide rails (11), and steel ladles (13) are placed on the steel ladle bases (12).

4. The mobile dust removal equipment for hot repair of steel ladles according to claim 1, characterized in that: The bag filter is a heat-resistant pleated filter cartridge (6-1). A spark filter (6-2) is installed at the inlet of the bag filter (6). A dust hopper (6-3) is installed at the bottom of the bag filter (6). A screw conveyor (6-4) is installed at the bottom of the dust hopper (6-3). A dust bin (6-5) is installed at one end of the screw conveyor (6-4). A ash discharge valve (6-6) is installed at the bottom of the dust bin (6-5).

5. A mobile dust removal device for hot repair of steel ladles according to claim 1, characterized in that: An electric hoist (5-3) is hung on the top side of the dust collector hood (5).

6. A mobile dust removal device for hot repair of steel ladles according to claim 3, characterized in that: An operating platform (14) is set opposite the steel ladle base (12). A sealing steel plate and an observation and operation window (5-5) are installed opposite the operating platform (14). Electric stacking doors (5-2) are installed on both sides of the dust hood (5) along the extension direction of the guide rail (11). The electric stacking doors (5-2) are open when not in operation.

7. A mobile dust removal device for hot repair of steel ladles according to claim 3, characterized in that: A rotatable boom (14-1) is installed on the operating platform (14). The axial direction of the ladle base (12) is perpendicular to the direction of the guide rail (11), and the tail of the ladle (13) is on the same side as the operating platform (14).

8. A mobile dust removal device for hot repair of steel ladles according to claim 1, characterized in that: The bottom of the fan (9) is fixed with shock-absorbing pads.

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