CN113652519A

CN113652519A - Feeding device of converter

Info

Publication number: CN113652519A
Application number: CN202110802870.0A
Authority: CN
Inventors: 张楷; 刘占彬; 贾源; 杨志勇; 黄坤程; 邱杰敏
Original assignee: China ENFI Engineering Corp
Current assignee: China ENFI Engineering Corp
Priority date: 2021-07-15
Filing date: 2021-07-15
Publication date: 2021-11-16
Anticipated expiration: 2041-07-15
Also published as: CN113652519B

Abstract

The invention discloses a feeding device of a converter, which comprises a movable chute, a support frame and a first lifting assembly, wherein the support frame is used for supporting the movable chute, the movable chute is movable between a first position and a second position, the front end of the movable chute is provided with a first opening allowing materials to flow into the movable chute, the rear end of the movable chute is provided with a second opening allowing the materials to be discharged from the movable chute, in the first position, the rear end of the movable chute extends into a converter smoke hood through a through hole in the outer wall of the converter smoke hood, in the second position, the rear end of the movable chute is separated from the converter smoke hood through the through hole, the movable chute is positioned outside the converter smoke hood, and the first lifting assembly is connected with the movable chute to drive the movable chute to move between the first position and the second position. The feeding device of the converter is not easy to damage, does not cause material adhesion, and has smooth feeding.

Description

Feeding device of converter

Technical Field

The invention relates to the technical field of converter smelting, in particular to a feeding device of a converter.

Background

In the converter smelting process, various bulk materials need to be added into the converter through the through holes, and in the feeding process, the bulk materials are conveyed to a feed opening at the end part of a belt conveyor from a storage bin by using the belt conveyor and then are guided into the converter through a chute. However, the chute in the related art is subject to roasting and corrosion by a large amount of sulfur-containing high-temperature flue gas at the through hole, is easy to deform and damage, and is easy to adhere to the chute feed opening due to high-temperature roasting, so that the feed opening is blocked and the feeding is unsmooth. In addition, the high-temperature flue gas at the furnace mouth can upwards stretch along the chute and the chute to ignite the belt of the belt conveyor to cause fire, and the high-temperature flue gas is discharged to the outside to pollute the environment, thereby being not beneficial to the collection of the flue gas.

Disclosure of Invention

Therefore, the embodiment of the invention provides a feeding device of a converter, which is not easy to damage, does not cause material adhesion and is smooth in blanking.

The charging device of the converter according to the embodiment of the invention comprises: a movable chute extending downwardly from a front to a rear slope and movable between a first position and a second position, the movable chute having a first opening at a front end thereof for allowing material to flow into the movable chute and a second opening at a rear end thereof for allowing the material to be discharged from the movable chute, the movable chute in the first position extending into the converter hood through a through-hole in an outer wall of the converter hood and opposite a mouth of the converter for allowing the material to flow into the converter through the second opening, the movable chute in the second position having a rear end thereof free from the converter hood through the through-hole, the movable chute being located outside the converter hood; a support frame for supporting the movable chute; a first lifting assembly coupled to the movable chute, the first lifting assembly adapted to drive the movable chute between the first position and the second position.

According to the feeding device of the converter, the movable chute is arranged, the lifting assembly capable of pulling the movable chute to move between the first position and the second position is arranged, when the converter needs to be fed, the first lifting assembly is used for driving the rear end of the movable chute to extend into the converter hood and be opposite to a converter mouth, and after feeding is completed, the first lifting assembly is used for driving the movable chute to be drawn out from the converter hood, so that the movable chute does not need to be located in the converter hood for a long time.

In some embodiments, the feeding device of converter still includes belt feeder and fixed chute, the belt feeder has the unloading port, the unloading port is located the top of activity chute, the belt feeder is used for carrying the material extremely unloading port department, fixed chute locates on the support frame and is located the unloading port with between the activity chute, just the top of fixed chute have with the feed inlet of unloading port intercommunication, the bottom of fixed chute have with the bin outlet of first opening intercommunication.

In some embodiments, the movable chute comprises a first chute section and a second chute section which are connected, the first chute section is arranged on the support frame, the second chute section is connected with the rear end of the first chute section, and in the first position, the rear end of the second chute section extends into the converter smoke hood through the through hole.

In some embodiments, the support frame has a guide rail, and the first trough section has a guide wheel thereon, which fits within the guide rail to guide the sliding of the movable chute.

In some embodiments, the guide rail includes a first guide rail and a second guide rail, the first guide rail and the second guide rail are opposite and spaced apart in the width direction of the movable chute, the guide wheel includes a first side guide wheel group and a second side guide wheel group, the first side guide wheel group and the second side guide wheel group are respectively disposed at two sides of the first trough section and connected with the side surface of the first trough section, the first side guide wheel group is fitted in the first guide rail, and the second side guide wheel group is fitted in the second guide rail.

In some embodiments, the first guide rail has a first runner opening toward the first groove section, the first side guide wheel group fits within the first runner, the second guide rail has a second runner opening toward the first groove section, the second side guide wheel group fits within the second runner.

In some embodiments, the first side guide pulley group includes a first front guide pulley connected to a front end of the first groove section and a first rear guide pulley connected to a rear end of the first groove section, and the second side guide pulley group includes a second front guide pulley connected to the front end of the first groove section and opposed to the first front guide pulley in a width direction of the first groove section and a second rear guide pulley connected to the rear end of the first groove section and opposed to the first rear guide pulley in the width direction of the first groove section.

In some embodiments, the first front guide wheel is in contact with an inner top wall of the first runner, the first rear guide wheel is in contact with an inner bottom wall of the first runner, the second front guide wheel is in contact with an inner top wall of the second runner, and the second rear guide wheel is in contact with an inner bottom wall of the second runner.

In some embodiments, the charging device of the converter further includes a gate assembly, the gate assembly includes a frame body and a door body, the frame body is a cylindrical body member having a front opening and a rear opening, a rear end of the frame body is connected with an outer wall of the converter hood and blocks the through hole, the rear opening is communicated with the through hole, the door body is slidably connected at the front opening to close or open the front opening, in the first position, the front opening is opened, the second trough section is inserted into the frame body through the front opening, a rear end of the second trough section penetrates through the rear opening, the through hole and extends into the converter hood, a rear end of the first trough section is stopped by the frame body, and in the second position, the second trough section is separated from the frame body, and the front opening is closed.

In some embodiments, the charging device of the converter further includes a second lifting assembly, and the second lifting assembly is connected with the door body to drive the door body to slide.

In some embodiments, the charging device of the converter further comprises a rope-off warning device adapted to stop the charging operation and to give a warning when a rope-loosening or rope-breaking phenomenon occurs in the first or second lifting assembly.

Drawings

Fig. 1 is a schematic view of the charging operation of the charging device of the converter according to the embodiment of the present invention.

Fig. 2 is a schematic structural view of a charging device of a converter according to an embodiment of the present invention.

Fig. 3 is a partial structural sectional view of a charging device of a converter according to an embodiment of the present invention.

Fig. 4 is a schematic structural view of a movable chute of a charging device of a converter according to an embodiment of the present invention.

Reference numerals:

a charging device 1 of a converter;

a movable chute 10; a first groove section 101; a second groove segment 102; a second front guide wheel 104; a first rear guide pulley 105; a second rear guide pulley 106;

a first lifting assembly 20;

a support frame 30; a first guide rail 301; a second guide rail 302; a first chute 303; a second runner 304;

a belt conveyor 40;

a fixed chute 50;

a gate assembly 60; a frame body 601; a door body 602; a second lifting assembly 70; a rope-off warning device 80.

A converter 2; and a converter hood 3.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

As shown in fig. 1 to 4, a charging device 1 of a converter according to an embodiment of the present invention includes a movable chute 10, a supporting frame 30, and a first lifting assembly 20.

The movable chute 10 extends obliquely downward from front to rear and is movable between a first position and a second position, the front end of the movable chute 10 having a first opening (not shown) allowing material to flow into the movable chute 10, and the rear end of the movable chute 10 having a second opening (not shown) allowing material to be discharged from the movable chute 10.

As shown in fig. 1, the movable chute 10 extends obliquely downward in the front-rear direction to allow material to flow within the movable chute 10, the movable chute 10 having a front opening for allowing material to fall into the movable chute 10 and a rear opening for allowing material to be discharged from the movable chute 10. In addition, the movement of the movable chute 10 between the first position and the second position may be understood as the movement of the movable chute 10 along its length between the first position and the second position.

Specifically, in the first position, the rear end of the movable chute 10 extends through a through hole (not shown) in the outer wall of the converter hood 3 into the converter hood 3 and opposite the mouth of the converter 2 to allow the flow of material into the converter 2 through the second opening.

It should be noted that, a converter smoke hood 3 is arranged above the converter 2, the converter smoke hood 3 is used for covering a converter mouth of the converter 2 to collect smoke, when materials are required to be added to the converter 2, the movable chute 10 moves towards the first position, namely, the movable chute 10 moves close to the converter smoke hood 3 along an oblique downward direction until the rear end of the movable chute 10 extends into the converter smoke hood 3 through the through hole, at this time, the materials are added into the movable chute 10 through the first opening, the materials in the movable chute 10 flow into the converter 2 through the second opening, and the process of adding the materials to the converter 2 is completed.

In the second position, the rear end of the movable chute 10 is separated from the converter smoke hood 3 through the through hole, and the movable chute 10 is positioned outside the converter 2. In other words, after the material addition is completed, the movable chute 10 moves toward the second position, that is, the movable chute 10 moves away from the converter hood 3 in the obliquely upward direction until the rear end of the movable chute 10 is separated from the converter hood 3 through the through hole, and the movable chute 10 is located outside the converter 2 to prepare for the next material addition.

The support frame 30 is used to support the movable chute 10. As shown in fig. 1 and 2, the support frame 30 has a support surface (not shown) on which the movable chute 10 is disposed so that the movable chute 10 can slide along the support surface while supporting the movable chute 10 with the support frame 30.

A first lifting assembly 20 is coupled to the movable chute 10, the first lifting assembly 20 being adapted to drive movement of the movable chute 10 between a first position and a second position. As shown in fig. 1, the first lifting assembly 20 is connected to the front end of the movable chute 10, and when the material needs to be added to the converter 2, the first lifting assembly 20 drives the movable chute 10 to move to the first position, it should be noted that in the process, the self-weight of the movable chute 10 is also used for driving the movable chute 10 to slide, and when the material addition is completed, the first lifting assembly 20 drives the movable chute 10 to move to the second position.

In addition, the first lifting assembly 20 includes a driving motor, a lifting rope, and a pulley adapted to adjust a lifting direction and moment of the lifting rope.

Further, as shown in fig. 1 and fig. 2, the feeding device 1 of the converter further includes a belt conveyor 40 and a fixed chute 50, the belt conveyor 40 has a feeding port (not shown) located above the movable chute 10, the belt conveyor 40 is used for conveying materials to the feeding port, the fixed chute 50 is arranged on the support frame 30 and located between the feeding port and the movable chute 10, the top of the fixed chute 50 has a feeding port (not shown) communicated with the feeding port, and the bottom of the fixed chute 50 has a discharging port (not shown) communicated with the first opening. It can be understood that the belt conveyor 40 can be used as a conveyor belt for materials to transport materials instead of manpower, and the blanking port of the belt conveyor 40 can adjust the height and direction of the blanking point according to actual requirements.

In addition, the material flows into the movable chute 10 through the fixed chute 50 through the blanking port, and in the process, the fixed chute 50 can play a role in guiding the flow, so that the material is prevented from leaking in the flowing process.

In some embodiments, as shown in fig. 1, the movable chute 10 comprises a first trough section 101 and a second trough section 102 connected together, the first trough section 101 being provided on the support frame 30, the second trough section 102 being connected to a rear end of the first trough section 101, and in the first position, the rear end of the second trough section 102 extends into the converter hood 3 through the through-hole. In other words, the first trough section 101 is slidable along the supporting frame 30, the second trough section 102 is suspendably connected to the rear end of the first trough section 101, and the sliding of the first trough section 101 can drive the second trough section 102 to extend into and separate from the converter hood 3.

Further, as shown in fig. 3, the supporting frame 30 has a guide rail, and the first trough section 101 is provided with a guide wheel, which is fitted in the guide rail to guide the sliding of the movable chute 10.

Specifically, as shown in fig. 3, the guide wheel includes a first guide rail 301 and a second guide rail 302, the first guide rail 301 and the second guide rail 302 are opposite and spaced apart in the width direction (the left-right direction shown in fig. 3) of the movable chute 10, the guide wheel includes a first side guide wheel group and a second side guide wheel group, the first side guide wheel group and the second side guide wheel group are respectively disposed on both sides of the first trough section 101 and are connected to the side surface of the first trough section 101, the first side guide wheel group is fitted in the first guide rail 301 (the guide rail located on the left side of the movable chute 10 in fig. 3), and the second side guide wheel group is fitted in the second guide rail 302 (the guide rail located on the right side of the movable chute 10 in fig. 3).

Thus, the cooperation of the first side guide wheel group and the first guide rail 301, and the cooperation of the second side guide wheel group and the second guide rail 302 can balance the movable chute 10 in the left-right direction, prevent lateral deviation, and guide the movable chute 10 to move along the first guide rail 301 and the second guide rail 302.

Further, as shown in fig. 3, the first guide rail 301 has a first slide groove 303 opening toward the first channel section 101, a first side guide wheel group is fitted in the first slide groove 303, the second guide rail 302 has a second slide groove 304 opening toward the first channel section 101, and a second side guide wheel group is fitted in the second slide groove 304. In other words, the notch of first spout 303 and the notch of second spout 304 all face first groove section 101, and the roof and the diapire of first spout 303 can carry on spacingly to first side guide wheel group, and the roof and the diapire of second spout 304 can carry on spacingly to second side guide wheel group to can avoid movable chute 10 to appear the phenomenon of tip perk.

Further, as shown in fig. 3 and 4, the first side guide pulley group includes a first front guide pulley (not shown) connected to a front end of the first groove section 101 and a first rear guide pulley 105 connected to a rear end of the first groove section 101, and the second side guide pulley group includes a second front guide pulley 104 connected to the front end of the first groove section 101 and opposite to the first front guide pulley in a width direction of the first groove section 101 and a second rear guide pulley 106 connected to the rear end of the first groove section 101 and opposite to the first rear guide pulley 105 in the width direction of the first groove section 101.

Further, as shown in fig. 3, the first front guide wheel contacts with an inner top wall of the first slide groove 303, the first rear guide wheel 105 contacts with an inner bottom wall of the first slide groove 303, the second front guide wheel 104 contacts with an inner top wall of the second slide groove 304, and the second rear guide wheel 106 contacts with an inner bottom wall of the second slide groove 304. In other words, the two guide wheels connected to the rear end of the first groove section 101 are in contact with the inner bottom wall of the corresponding slide groove, and the two guide wheels connected to the front end of the first groove section 101 are in contact with the inner top wall of the corresponding slide groove.

It can be understood that, in the process of moving the movable chute 10 toward the first position, since the movable chute 10 extends downward from front to back, the overall center of gravity of the movable chute 10 is biased to the rear end, the first rear guide wheel 105 and the second rear guide wheel 106 in contact with the inner bottom wall of the chute can stably support the rear end of the movable chute 10, and the first front guide wheel 104 and the second front guide wheel 104 in contact with the inner top wall of the chute can prevent the front end of the movable chute 10 from tilting, and maintain the stability of the movement of the movable chute 10.

In some embodiments, as shown in fig. 1 and 2, the charging device 1 of the converter further includes a gate assembly 60, the gate assembly 60 includes a frame body 601 and a gate body 602, the frame body 601 is a cylindrical body having a front opening and a rear opening, a rear end of the frame body 601 is connected to an outer wall of the converter 2 and blocks the through hole, the rear opening is communicated with the through hole, and the gate body 602 is slidably connected to the front opening to close or open the front opening.

As shown in fig. 1 and 2, the frame body 601 is connected to a through hole on an outer wall of the converter 2, a rear end of the frame body 601 covers the through hole, sliding grooves are formed in edges of left and right sides of the front opening, longitudinal edges of left and right sides of the door body 602 are movably fitted in the sliding grooves, the door body 602 slides upwards along the sliding grooves to open the front opening, and the door body 602 falls downwards along the sliding grooves to close the front opening.

It can be understood that when needs are reinforced to converter 2, the front opening is open mode in order to allow movable chute 10 to stretch into converter petticoat pipe 3, and after reinforced completion, movable chute 10 withdraws from converter petticoat pipe 3, and the front opening is closed to avoid the flue gas to discharge from the through-hole, make things convenient for concentrating of flue gas to collect, avoid the pollution of flue gas to external environment simultaneously.

Specifically, in the first position, the front opening is opened, the second trough section 102 is inserted into the frame body 601 through the front opening, the rear end of the second trough section 102 passes through the rear opening and the through hole and extends into the converter hood 3, and the rear end of the first trough section 101 is stopped by the frame body 601. From this, the rear end of first groove section 101 and the backstop of support body 601 can carry on spacingly to the removal of activity chute 10 to the volume of stretching into of control activity chute 10 avoids excessively stretching into and leads to activity chute 10 to burn impaired, ensures simultaneously that the first opening of activity chute 10 is in the connected state with the bin outlet of fixed chute 50. Further, in the second position, the second slot segment 102 is disengaged from the frame 601 and the front opening is closed.

In some embodiments, as shown in fig. 1, the charging device 1 of the converter further includes a second lifting assembly 70, and the second lifting assembly 70 is connected to the door 602 to drive the door 602 to slide, so as to control the door 602 to close or open the front opening.

Specifically, when the converter 2 needs to be charged, the door 602 is driven by the second lifting assembly 70 to move upwards to open the front opening, then the first lifting assembly 20 drives the movable chute 10 to move towards the first position, after the rear end of the movable chute 10 sequentially passes through the frame body 601, the through hole and extends into the converter hood 3, the belt conveyor 40 operates to convey the material to the blanking port, and the material flows into the movable chute 10 from the blanking port through the fixed chute 50 and flows into the converter 2 from the second opening at the rear end of the movable chute 10.

After feeding is completed, firstly stopping the belt conveyor 40 from running, then driving the movable chute 10 to move towards the second position by using the first lifting assembly 20, after the rear end of the movable chute 10 sequentially separates from the converter smoke hood 3 along the through hole and the frame body 601, driving the door body 602 to move downwards to close the front opening by using the second lifting assembly 70, sealing the converter smoke hood 3 at the moment, preventing smoke from flowing out of the through hole, and cleaning residual materials by separating from the movable chute 10 outside the converter 2 so as to facilitate next feeding.

Further, as shown in fig. 2, the charging device 1 of the converter further comprises a rope-off warning device 80, and the rope-off warning device 80 is adapted to stop the charging operation and give a warning when the rope-loosening or rope-breaking phenomenon occurs in the first lifting assembly 20 or the second lifting assembly 70, so as to improve the safety of the operation of the charging device.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" and the like mean that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A charging device for a converter, comprising:

a movable chute extending downwardly from a front to a rear slope and movable between a first position and a second position, the movable chute having a first opening at a front end thereof for allowing material to flow into the movable chute and a second opening at a rear end thereof for allowing the material to be discharged from the movable chute, the movable chute in the first position extending into the converter hood through a through-hole in an outer wall of the converter hood and opposite a mouth of the converter for allowing the material to flow into the converter through the second opening, the movable chute in the second position having a rear end thereof free from the converter hood through the through-hole, the movable chute being located outside the converter hood;

a support frame for supporting the movable chute;

a first lifting assembly coupled to the movable chute, the first lifting assembly adapted to drive the movable chute between the first position and the second position.

2. The charging device of a converter according to claim 1, further comprising a belt conveyor and a fixed chute, wherein said belt conveyor has a discharge port, said discharge port is located above said movable chute, said belt conveyor is used for conveying said material to said discharge port, said fixed chute is located on said supporting frame and located between said discharge port and said movable chute, and said fixed chute has a top portion having a feed inlet communicating with said discharge port, and a bottom portion having a discharge outlet communicating with said first opening.

3. The charging device for a converter according to claim 1, wherein the movable chute comprises a first chute section and a second chute section which are connected, the first chute section is arranged on the support frame, the second chute section is connected with the rear end of the first chute section, and in the first position, the rear end of the second chute section extends into the converter hood through the through hole.

4. A charging device for a converter according to claim 3, wherein said supporting frame has a guide rail, and said first channel section is provided with a guide wheel, said guide wheel being fitted in said guide rail to guide the sliding movement of said movable chute.

5. The charging device for a converter according to claim 4, wherein the guide rail comprises a first guide rail and a second guide rail, the first guide rail and the second guide rail are opposite and spaced apart in the width direction of the movable chute, the guide wheel comprises a first side guide wheel group and a second side guide wheel group, the first side guide wheel group and the second side guide wheel group are respectively arranged at two sides of the first chute section and connected with the side surface of the first chute section, the first side guide wheel group is fitted in the first guide rail, and the second side guide wheel group is fitted in the second guide rail.

6. The charging device of a converter according to claim 5, characterized in that said first guide rail has a first runner opening towards said first channel section, said first set of side guide wheels being fitted in said first runner, said second guide rail has a second runner opening towards said first channel section, said second set of side guide wheels being fitted in said second runner.

7. The charging device for the converter according to claim 6, wherein the first side guide pulley group includes a first front guide pulley connected to a front end of the first channel section and a first rear guide pulley connected to a rear end of the first channel section, and the second side guide pulley group includes a second front guide pulley connected to the front end of the first channel section and opposed to the first front guide pulley in a width direction of the first channel section and a second rear guide pulley connected to the rear end of the first channel section and opposed to the first rear guide pulley in the width direction of the first channel section.

8. The charging device for a converter according to claim 7, wherein said first front guide wheel is in contact with an inner top wall of said first chute, said first rear guide wheel is in contact with an inner bottom wall of said first chute, said second front guide wheel is in contact with an inner top wall of said second chute, and said second rear guide wheel is in contact with an inner bottom wall of said second chute.

9. The charging device for a converter according to claim 2, further comprising a gate assembly, wherein the gate assembly comprises a frame body and a door body, the frame body is a cylindrical member having a front opening and a rear opening, a rear end of the frame body is connected with an outer wall of the converter hood and blocks the through hole, the rear opening is communicated with the through hole, the door body is slidably connected at the front opening to close or open the front opening, in the first position, the front opening is opened, the second trough section is inserted into the frame body through the front opening, a rear end of the second trough section passes through the rear opening, the through hole and extends into the converter hood, a rear end of the first trough section is stopped by the frame body, and in the second position, the second trough section is separated from the frame body, and the front opening is closed.

10. The charging device of the converter according to claim 9, further comprising a second lifting assembly, wherein the second lifting assembly is connected with the door body to drive the door body to slide.

11. The charging installation of a converter according to claim 10, further comprising a rope-off warning device adapted to stop the charging operation and to give a warning when a rope-loosening or rope-breaking phenomenon occurs in said first hoisting assembly or said second hoisting assembly.