CN217529204U - Covering and uncovering device for covered steel ladle - Google Patents

Abstract

The utility model discloses a capping and uncapping device for a covered steel ladle, belonging to the technical field of converter steelmaking equipment. The steel ladle with the cover comprises a steel ladle cover and a steel ladle body, and is characterized in that: the covering and uncovering device comprises an installation part, a supporting part and a connecting piece, wherein the installation part is arranged on the upper part of the supporting part, the two ends of the lower part of the supporting part are respectively provided with one connecting piece, a pair of ladle cover hanging holes are fixedly arranged on the ladle cover, the connecting piece is inserted into the ladle cover hanging holes in a matching mode, and the installation part is connected to a travelling crane to realize the movement of the ladle cover. The utility model discloses can add, take off the operation of covering to the area lid ladle that can't even water the molten steel, can not occupy the buggy ladle and blow the argon alloy fine setting station special use and add, take off the lid device, to production rhythm and the hot turnover of ladle almost nothing influence, simple structure, it is convenient to use, labour saving and time saving, and cost of manufacture is cheap relatively.

Description

Covering and uncovering device for covered steel ladle

Technical Field

The utility model belongs to the technical field of converter steelmaking equipment technology, more specifically say, relate to a simple and easy type area lid ladle adds, takes off and covers device.

Background

In recent years, a steel ladle capping technology, namely, the hot turnover with a cap in the steel ladle circulation process can effectively prevent the heat dissipation of a ladle opening and reduce the heat loss of a steel ladle and molten steel, and is an important means for saving energy and reducing consumption of steel enterprises. At present, most steel enterprise argon alloy blowing fine adjustment stations are provided with special steel ladle cover adding and uncovering devices to realize the functions of steel ladle cover adding and uncovering, and the process flow is as follows: the method comprises the steps of ladle car → ladle dropping pot with cover → ladle uncovering → pouring of stuffing sand → tapping of converter → entry of molten steel → fine adjustment of argon blowing alloy → capping of ladle → exit of molten steel. However, in the actual production process, because of the influence of factors such as the component of molten steel, low-temperature molten steel, equipment failure, sudden external power jump and the like, the molten steel cannot be continuously poured and needs to be poured back to a ladle and returned to a furnace or blended. The ladle cover of the ladle with the cover needs to be removed before ladle pouring or blending operation, otherwise, molten steel splashing and ladle cover melting damage accidents are easy to occur. In the prior art, particularly under the condition of relatively compact production rhythm, when a special device for adding and uncovering the steel ladle with the cover, which cannot continuously pour molten steel, is used for uncovering the steel ladle with the cover, the following influences are generated on the production organization: (1) The steel ladle car is occupied, so that the converter blowing is influenced, and steel ladles such as the converter and the like are easy to tap steel when the steel ladles fall into a tank, and the production rhythm is further influenced; (2) After the steel ladle is uncovered, the ladle cover is detained on the special device for adding and uncovering, and before the steel ladle is discharged, the steel ladle with the cover needs to be taken off in advance or the steel ladle without the cover needs to be selected to fall into the tank, so that the steel ladle covering rate is influenced, and the hot turnover efficiency of the steel ladle is further influenced. In addition, after the ladle with the ladle cover removed is poured or blended, the ladle can still be put into use again only by capping operation. Therefore, in order to solve the problems, the invention provides a simple on-line steel ladle covering and uncovering device which can simultaneously realize the on-line steel ladle covering and uncovering functions.

Chinese patent application No. 201310138578.9, the application publication date is 2013.07.31, which discloses a steel ladle covering and uncovering device, mainly comprising: mechanism portal, mechanism body and hoist mechanism. The lifting mechanism is provided with a horizontal plug-in lifting hook, and the rear end part of the horizontal plug-in lifting hook is fixedly connected with the mechanism body through a vertical connecting piece; a ladle cover hanging rod is arranged on the surface of the ladle cover; when the steel ladle capping and uncapping device is in a capping or uncapping state, the horizontal inserted lifting hook is inserted into the steel ladle cap hanging rod and used under the steel-making process of a steel mill with the direction of the suspension arm consistent with the advancing direction of a steel ladle, and the automatic whole-process capping and uncapping function is realized.

Chinese patent application No. 201120416330.0, publication number 2012.05.30 discloses an electric push rod driving type steel ladle capping and uncapping device, which mainly comprises a lifting module and a hanging module, wherein: the lifting module comprises a lifting electric push rod, a transmission device, a pulley device and a supporting frame; the hanging module comprises a push-pull electric push rod, a hanging frame and a hook mechanism. The supporting frame is provided with a plurality of groups of pulley devices, the transmission device passes through the pulley devices, one end of the transmission device is connected with the motor through the lifting electric push rod, and the other end of the transmission device is connected with a hanging point of the suspension frame. Three lifting hook mechanisms are arranged at the position, corresponding to a lifting shaft of the steel ladle cover, of the hanging frame, one lifting hook mechanism serves as a driving lifting hook, the driving lifting hook is driven to rotate by a push-pull electric push rod on the hanging frame, and the other two lifting hook mechanisms are driven to swing, so that the functions of adding and removing the cover are achieved.

The two steel ladle covering and uncovering devices play a certain positive role in the aspects of steel ladle covering and uncovering, but the two steel ladle covering and uncovering devices are relatively complex in structure and relatively high in manufacturing cost and maintenance cost, particularly, the steel ladles are required to be placed in corresponding areas for covering and uncovering operation after the existing covering and uncovering devices are fixed in position, and the covering and uncovering treatment of covered steel ladles which cannot be continuously cast by molten steel due to the fact that molten steel components are out of specification, low-temperature molten steel, equipment faults, external sudden power flashover and the like is difficult to achieve.

Disclosure of Invention

1. Problems to be solved

To current with take off and cover device rigidity, the structure is complicated, can not add, take off the problem of covering the processing to the area lid ladle that can't even water the molten steel in a flexible way, the utility model provides a area covers with taking off and cover device of ladle, simple structure does not need independent design driving and rigidity, under the prerequisite of guaranteeing ladle safety, steady, high-efficient operation, can effectively improve production efficiency, reduces intensity of labour, simultaneously, the device has efficient, with low costs and safe and reliable's characteristics.

2. Technical scheme

In order to solve the above problems, the utility model adopts the following technical proposal.

The utility model provides a take and cover ladle with lid with, the steel ladle with lid includes steel ladle lid and ladle body, adds to take off the lid device and includes installation department, supporting part and connecting piece, supporting part upper portion is equipped with the installation department, supporting part lower part both ends respectively are equipped with a connecting piece, and wherein, the steel ladle covers and fixedly is equipped with a pair of ladle lid lifting eye, the connecting piece cooperation is inserted the ladle and is covered the lifting eye, the installation department is connected on the driving a vehicle to realize the removal about and from top to bottom of steel ladle lid, the during operation, only need install the installation department on the driving a vehicle, the driving a vehicle drives and adds to take off the motion of covering device, accomplishes and takes off the work of covering.

As another embodiment of the present invention, the installation portion is an annular hook, and the auxiliary hook of the traveling crane is hooked into the hook to connect the traveling crane and the installation portion.

As the utility model discloses another embodiment, the contained angle department that supporting part and connecting piece formed is equipped with the strengthening rib, the strengthening rib is three horn shapes, locates the junction of supporting part and connecting piece, effectively improves the too big condition that leads to life too short of junction atress, plays and strengthens and fixed action, improves the device mechanical strength and life.

As the utility model discloses another embodiment, including first working face, second working face, third working face and the fourth working face that meets in proper order on the connecting piece, the contained angle that first working face and second working face formed is the acute angle, the contained angle that third working face and fourth working face formed is the obtuse angle. When the covering and uncovering device is hoisted, the second working surface deviates downwards from the horizontal direction by a certain angle, and the purpose is to limit the steel ladle cover to a certain degree, namely the steel ladle cover tends to be close to the third working surface; an included angle between the fourth working surface and the vertical surface is an acute angle, so that the steel ladle cover is further kept stable and is not easy to tilt upwards.

As another embodiment of the present invention, the inventor finds in the production process that the included angle formed by the first working surface and the second working surface is preferably 60-85 °, and during operation, the included angle formed by the fourth working surface and the vertical surface is preferably 10-25 °, so that the steel ladle cover is more stable and is not easy to unhook.

As another embodiment of the present invention, the inventor found that the alignment of the connecting piece and the hanging hole of the cover is the most time-consuming difficult point, so the connecting piece is designed to include the first working surface, the guiding portion and the spacing portion which are connected in sequence, the guiding portion and the included angle of the first working surface are obtuse angles, and the spacing portion is a spacing groove. The guide part is an inclined plane which inclines upwards, and the tip of the connecting piece is more pointed and easier to align; the limiting part is a groove, and the ladle cover lifting eye is clamped in the groove more easily, wherein attention needs to be paid to the fact that a space is reserved when the ladle cover is unhooked due to the height of the opening of the ladle cover lifting eye, namely the depth of the groove is smaller than the thickness of the ladle cover lifting eye.

As another embodiment of the present invention, the angle between the guiding portion and the first working surface is less than 120 degrees, and the connecting member is not easy to hang in the hanging hole of the bag cover.

As the utility model discloses another embodiment, the cross-sectional profile of spacing portion is open-ended right trapezoid, the groove face of spacing portion includes the third working face, the third working face is the obtuse angle with the contained angle that the tank bottom of spacing portion formed, and the later stage ladle lid that can be convenient for breaks away from the connecting piece.

As the utility model discloses another embodiment, the connecting piece still includes the fourth working face, the third working face is connected to the fourth working face to the contained angle that the plane at fourth working face place and the plane at the tank bottom place of spacing portion constitute is the acute angle, further keeps the ladle cover steady, is difficult for upwards perk.

As another embodiment of the present invention, the pair of hanging holes is disposed on the diameter of the ladle cover, and the distance from the hanging hole to the center of the ladle cover is the same, so that the ladle cover can be kept at a horizontal position, which is beneficial to the separation of the ladle cover from the ladle body.

As another embodiment of the present invention, an opening guide is provided on one side of the hanging hole of the cover, and the height of the opening guide is less than or equal to the height of the hanging hole of the cover, so as to help the connecting member to align and hang in the hanging hole of the cover to a certain extent.

In the production process, when a covered ladle incapable of continuously pouring molten steel needs to be uncapped, the covered ladle incapable of continuously pouring molten steel is placed on the ladle seat, an operator commands the travelling crane, the auxiliary hook of the travelling crane is hung on the installation part, so that the connecting piece of the device is hung into a special ladle cover hanging hole arranged on the ladle cover, the auxiliary hook of the travelling crane is translated towards the direction of clamping the ladle cover and the ladle body, the travelling crane slowly ascends after the ladle cover is separated from the limit of the ladle body, and the ladle cover can be conveniently removed. The ladle body of desorption ladle cover can carry out other for example the operation of turning over the package or mingling, and at this moment, the driving is placed ladle cover on one side, alright break away from the installation department with driving auxiliary hook to release this driving in a flexible way and go and carry out other processes. When the steel ladle cover needs to be added, an operator commands the travelling crane, the auxiliary hook of the travelling crane is hung on the mounting part, the connecting part of the device is hung in a special ladle cover hanging hole formed in the steel ladle cover, and the auxiliary hook of the travelling crane moves to finish the covering operation.

The utility model discloses a capping device that adds, takes off of area lid ladle can add, take off the lid operation to the area lid ladle that can't cast molten steel even on the tank tower, can not occupy buggy ladle equipment and argon-blowing alloy fine setting station and add, take off and cover isolated plant, to production rhythm and ladle heat turnover almost nothing influence. In addition, the device can also realize the damaged ladle cover and change the function, makes the ladle cover rate keep higher level all the time.

3. Advantageous effects

Compared with the prior art, the utility model discloses a with take off cover device from throwing into the use, gain following several aspects and implement the effect:

(1) The cover adding and uncovering device of the utility model can add and uncover the covered ladle which can not continuously cast molten steel, can not occupy the special cover adding and uncovering device of the ladle car and the argon-blowing alloy fine-tuning station, and has almost no influence on the production rhythm and the ladle heat turnover;

(2) The capping and uncapping device of the utility model effectively improves the capping rate of the steel ladle, compared with the prior art, because the device can realize the function of adding, uncapping or replacing the ladle cap of the on-line and off-line steel ladle at the same time, the capping rate of the steel ladle can be improved by nearly 15 percent;

(3) The utility model discloses a with take off and cover device simple structure, it is convenient to use, labour saving and time saving, and cost of manufacture is cheap relatively.

Drawings

FIG. 1 is a side view of the cover-adding/uncovering device of the present invention;

FIG. 2 is an enlarged view of a portion of area A of FIG. 1;

FIG. 3 is a front view of the cover-adding/uncovering device of the present invention;

FIG. 4 is a first view of the first state of the cover adding and uncovering device of the present invention;

FIG. 5 is a side view of another embodiment of the cover-adding/uncovering device of the present invention;

FIG. 6 is a partial enlarged view of the area B in FIG. 5;

FIG. 7 is a second view of the present invention showing the operation state of the cover adding and uncovering device;

FIG. 8 is a top view of a ladle cover with the cover-adding and-uncovering device of the present invention (only the connection between the position of the hanging hole of the ladle cover and the position of the opening guide are shown);

in the figure:

1. an installation part; 2. a support portion; 3. reinforcing ribs; 4. a connecting member; 41. a first working surface; 42. a second working face; 43. a third working surface; 44. a fourth working surface; 45. a guide portion; 46. a limiting part; 5. covering the hanging hole; 51. guiding an opening; 6. covering the steel ladle; 7. a ladle body; 8. and (5) a crane auxiliary hook.

Detailed Description

The invention will be further described with reference to specific embodiments and drawings.

Examples

As shown in fig. 1, the device for adding and uncovering a steel ladle with a cover according to the embodiment includes a steel ladle cover 6 and a steel ladle body 7, wherein the ladle cover hanging eyes 5 are arranged on the diameter of the steel ladle cover 6, and the distances from the two ladle cover hanging eyes 5 to the center of the steel ladle cover are the same, so that the steel ladle cover can be kept in a horizontal position, and the steel ladle cover is easy to be separated from the steel ladle body. Add and take off and cover the device and include installation department 1, supporting part 2 and connecting piece 4, 2 upper portions of supporting part are equipped with installation department 1, 2 lower part both ends of supporting part respectively are equipped with a connecting piece 4, wherein, it hangs eye 5 to be equipped with a pair of ladle cover on the ladle cover 6 fixedly, connecting piece 4 cooperation is inserted ladle cover and is hung eye 5, installation department 1 is connected on the driving a vehicle, in order to realize about 6 and upper and lower removal of ladle cover, in operation, only need install the installation department on the driving a vehicle, the driving a vehicle drives and adds and takes off the cover device motion, the completion adds and takes off and cover the work.

As shown in figure 3, in order to enhance the mechanical strength and the service life of the supporting part 2, a reinforcing rib 3 can be arranged at an included angle formed by the supporting part 2 and the connecting piece 4, the reinforcing rib 3 is triangular and is arranged at the joint of the supporting part 2 and the connecting piece 4, the condition that the service life is too short due to too large stress at the joint is effectively improved, the reinforcing and fixing effects are achieved, and the mechanical strength and the service life of the device are improved.

In order to facilitate the installation and connection of the installation part 1 and the traveling crane, the installation part can be designed into an annular lifting hook, and the auxiliary hook 8 of the traveling crane is hung in the lifting hook to realize the connection of the traveling crane and the installation part.

The connecting piece 4 of the embodiment can be of any structure, preferably hook-shaped, and only the hook-shaped connecting piece 4 needs to be hung in the ladle cover hanging hole 5, and the travelling crane indirectly drives the ladle cover 6, so that the flexible cover adding and uncovering operation is realized.

In actual production, the inventor finds that the shape structure of the connecting piece 4 is optimized, and the cover adding and uncovering operation is facilitated.

For example:

first, as shown in fig. 2, the connecting member 4 includes a first working surface 41, a second working surface 42, a third working surface 43 and a fourth working surface 44 which are connected in sequence, and an included angle formed by the first working surface 41 and the second working surface 42 is an acute angle, preferably 60 to 85 °; the included angle formed by the third working surface 43 and the fourth working surface 44 is an obtuse angle, and when the steel ladle cover works, the included angle formed by the fourth working surface 44 and the vertical surface is preferably 10-25 degrees, so that the steel ladle cover is more stable and is not easy to unhook. When the covering and uncovering device is hoisted, the second working surface deviates downwards from the horizontal direction by a certain angle, and the purpose is to limit the steel ladle cover to a certain degree, namely the steel ladle cover tends to be close to the third working surface; the included angle between the fourth working surface 44 and the vertical surface is an acute angle, so that the steel ladle cover is further kept stable and is not easy to tilt upwards.

As shown in fig. 4, the structure is connected with the ladle cover 6 in a using state diagram.

Secondly, the inventor finds that the alignment of the connecting piece and the ladle cover lifting eye is the most time-consuming difficulty, so the cover adding and uncovering device shown in fig. 5 is designed, and in combination with fig. 6, the connecting piece 4 comprises a first working surface 41, a guide part 45 and a limiting part 46 which are sequentially connected, the included angle between the guide part 45 and the first working surface 41 is an obtuse angle, the included angle is not easy to be too large, is smaller than 120 degrees, and is not easy to be hung in the ladle cover lifting eye; the stopper 46 is a stopper groove. The guide part is an inclined surface which inclines upwards, and the tip part of the connecting piece is more pointed and easier to align; and spacing portion is the recess, and ladle cover hanging hole is changeed the chucking in the recess, wherein need notice that the trompil height of ladle cover hanging hole will leave the room for when the ladle cover unhook, and the degree of depth of recess promptly will be less than the thickness of ladle cover hanging hole.

Preferably, the cross-sectional profile of the limiting portion 46 is an open right trapezoid, the groove surface of the limiting portion 46 includes a third working surface 43, and an included angle formed by the third working surface 43 and the groove bottom of the limiting portion 46 is an obtuse angle, so that the ladle cover can be conveniently separated from the connecting piece in the later period. Meanwhile, the connecting piece 4 further comprises a fourth working surface 44, the fourth working surface 44 is connected with the third working surface 43, and an included angle formed by a plane where the fourth working surface 44 is located and a plane where the groove bottom of the limiting portion 46 is located is an acute angle, so that the steel ladle cover is further kept stable and is not prone to tilting upwards. As shown in fig. 7, the structure is connected with the ladle cover 6 in a using state diagram.

In order to further improve the alignment problem of the connecting part 4 and the ladle cover hanging eye 5, as shown in fig. 8, one side of the ladle cover hanging eye 5 is provided with an opening guide 51, and the height of the opening guide 51 is less than or equal to that of the ladle cover hanging eye 5, so that the connecting part can be assisted to be aligned and hung in the ladle cover hanging eye to a certain degree. It should be noted that, the position connection relation between the ladle cover lifting eye 5 and the opening guide 51 is only drawn in the top view of the ladle cover 6 of fig. 8, and other structures on the ladle cover 6 are conventional structures, the utility model discloses do not make improvements to other structures, so only show ladle cover lifting eye 5 and opening guide 51 structure.

In the production process, when a covered ladle incapable of continuously pouring molten steel needs to be uncapped, the covered ladle incapable of continuously pouring molten steel is placed on a tank seat, an operator commands a travelling crane, the auxiliary travelling crane hook 8 is hung on the installation part, so that the connecting piece 4 of the device is hung in the special ladle cover hanging hole 5 arranged on the ladle cover 6, the auxiliary travelling crane hook 8 is horizontally moved towards the direction of clamping the ladle cover 6 and the ladle body 7, the travelling crane slowly ascends after the ladle cover 6 is separated from the limit of the ladle body 7, and the ladle cover 6 can be conveniently removed. The ladle body 7 with the ladle cover removed can be used for other operations such as ladle reversing or blending, at the moment, the travelling crane places the ladle cover 6 aside, and then the auxiliary hook 8 of the travelling crane can be separated from the installation part, so that the travelling crane can be flexibly released to carry out other processes. When a steel ladle cover 6 needs to be covered on the steel ladle body 7, an operator commands a travelling crane, the auxiliary hook 8 of the travelling crane is hung on the mounting part 1, the connecting part of the device is hung in the special ladle cover hanging hole 5 arranged on the steel ladle cover 6, and the auxiliary hook 8 of the travelling crane moves to finish the covering operation.

The example of the utility model is only right the utility model discloses a preferred embodiment describes, it is not right the utility model discloses design and scope are injectd, do not deviate from the utility model discloses under the prerequisite of design thought, the field engineering technical staff can integrate above-mentioned structure, also is the utility model discloses the within range of protection, right the utility model discloses a various deformation and the improvement that technical scheme made also all should fall into the protection scope of the utility model.

Claims (10)

1. The utility model provides a take and cover ladle add, take off and cover device, take and cover ladle includes ladle cover (6) and ladle body (7), its characterized in that: the covering and uncovering device comprises an installation part (1), a supporting part (2) and a connecting piece (4), wherein the installation part (1) is arranged on the upper part of the supporting part (2), the two ends of the lower part of the supporting part (2) are respectively provided with one connecting piece (4), a pair of covering lifting eyes (5) are fixedly arranged on the steel covering (6), the connecting pieces (4) are matched with each other to be inserted into the covering lifting eyes (5), and the installation part (1) is connected to a travelling crane to realize covering and uncovering operations of the steel covering (6).

2. The cover adding and uncovering device of the covered ladle according to claim 1, wherein: and reinforcing ribs (3) are arranged at included angles formed by the supporting parts (2) and the connecting pieces (4).

3. The capping and decapping device for the capped ladle according to claim 1, wherein: including first working face (41), second working face (42), third working face (43) and fourth working face (44) that meet in proper order on connecting piece (4), the contained angle that first working face (41) and second working face (42) formed is the acute angle, the contained angle that third working face (43) and fourth working face (44) formed is the obtuse angle, and wherein, fourth working face (44) are the acute angle with the contained angle of vertical face.

4. The cover adding and uncovering device of the covered ladle according to claim 3, wherein: the included angle formed by the first working surface (41) and the second working surface (42) is 60-85 degrees; when the working table works, the included angle between the fourth working surface (44) and the vertical surface is 10-25 degrees.

5. The cover adding and uncovering device of the covered ladle according to claim 1, wherein: including first working face (41), guide part (45) and spacing portion (46) that meet in proper order on connecting piece (4), the contained angle of guide part (45) and first working face (41) is the obtuse angle, spacing portion (46) are spacing recess.

6. The cover adding and uncovering device of the covered ladle according to claim 5, wherein: the guide part (45) and the first working surface (41) form an included angle of less than 120 degrees.

7. The cover adding and uncovering device of the covered ladle according to claim 5, wherein: the cross-sectional profile of spacing portion (46) is open-ended right trapezoid, the groove face of spacing portion (46) includes third working face (43), the contained angle that third working face (43) and the tank bottom of spacing portion (46) formed is the obtuse angle.

8. The capping and decapping device for the capped ladle according to claim 7, wherein: the connecting piece (4) further comprises a fourth working surface (44), the fourth working surface (44) is connected with the third working surface (43), and an included angle formed by a plane where the fourth working surface (44) is located and a plane where the groove bottom of the limiting portion (46) is located is an acute angle.

9. The device for adding and removing the cover of the covered ladle according to any one of claims 1 to 8, wherein: the pair of ladle cover hanging holes (5) are arranged on the diameter of the ladle cover (6), and the distances from the ladle cover hanging holes (5) to the center of the ladle cover are the same.

10. The cover adding and uncovering device of the covered ladle according to claim 9, wherein: an opening guide (51) is arranged on one side of the ladle cover hanging hole (5), and the height of the opening guide (51) is smaller than or equal to that of the ladle cover hanging hole (5).

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