Device for dedusting and sealing single iron notch

Abstract

The utility model discloses a device for dedusting and sealing a single iron notch, which comprises a main channel for blast furnace tapping and a main channel upper side opening, a movable main channel moving cover is arranged at a position corresponding to the main channel upper side opening, and the movable main channel moving cover has a first position, so that the main channel moving cover covers the opening of the main channel; the movable main groove moving cover has a second position, so that the main groove moving cover is separated from the opening of the main groove, and the opening of the main groove is exposed. The main channel moving cover is used as a smoke dust diversion transition cover, the dust collection effect is improved, after dust removal is completed, the main channel moving cover can be moved away, a channel for hoisting materials and removing slag is formed, and operation such as furnace front slag removal is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of metallurgical dust removal equipment, and in particular to a device for dust removal and sealing of a single iron hole. Background Art

[0002] Domestic smelting of vanadium-titanium magnetite 1200m 3 Blast furnaces generally use a single taphole for slag discharge, and the taphole is uneven, the site is cramped, and the maintenance crane is installed low. The slag volume of a blast furnace using vanadium-titanium magnetite is about 1.5 times that of an ordinary ore, and the slag contains 20% to 23% TiO2. The main ditch is seriously sticky with slag, and each furnace must be cleaned, which requires a lot of work in front of the furnace. The conventional use of steel structures to fully seal the taphole cannot meet the needs of maintenance equipment to quickly enter the closed area, and the cleaned slag volume cannot be quickly exported from the closed area.

[0003] Therefore, in view of the above technical problems, how to ensure the dust removal effect at the iron outlet while facilitating the cleaning of the bonding residue inside the main groove is a technical problem that technical personnel in this field need to solve. Utility Model Content

[0004] The purpose of this application is to provide a device for dust removal and closure of a single iron mouth, which utilizes a main groove movable cover as a smoke guide transition cover to improve the dust collection effect. After the dust removal is completed, the main groove movable cover can be removed to form a channel for lifting materials and cleaning slag, thereby realizing operations such as slag cleaning in front of the furnace.

[0005] To achieve the above-mentioned purpose, the present application provides a device for dust removal and sealing of a single iron mouth, including a main groove used for iron tapping in a blast furnace, the upper side of the main groove being opened, and a movable main groove movable cover is provided at a position corresponding to the upper side opening of the main groove, the movable main groove movable cover has a first position so that the main groove movable cover covers the upper part of the main groove; the movable main groove movable cover has a second position so that the main groove movable cover is detached from the opening of the main groove and the opening of the main groove is exposed.

[0006] Preferably, one end of the main groove is connected to the blast furnace for iron tapping; a gun mud machine side cover and an opening machine side cover are respectively provided on both sides of the main groove, and the gun mud machine side cover and the opening machine side cover extend upward and are higher than the opening of the main groove to form a cavity above the opening of the main groove, and the main groove movable cover corresponds to the cavity.

[0007] Preferably, a support frame is provided on the upper side of the side cover of the gun mud machine and the side cover of the opening machine, and a track for the main groove moving cover to travel is provided on the support frame.

[0008] Preferably, a travel wheel matching the track is provided on the lower side of the main groove moving cover.

[0009] Preferably, a window is provided on the support frame at a position corresponding to the cavity, so that when the main groove movable cover is in the first position, the main groove movable cover is connected with the cavity.

[0010] Preferably, a dust removal duct is provided at the rear of the main groove movable cover, the dust removal duct is externally connected to a dust removal device, and the dust removal device is detachably connected to the dust removal duct.

[0011] Preferably, the main groove movable cover is connected to a driving member, and the driving member drives the main groove movable cover to move to the first position or the second position.

[0012] Preferably, the driving member is a driving motor provided on the main groove moving cover to drive the walking wheels of the main groove moving cover to move.

[0013] Preferably, the driving member is a winch traction motor, which is externally arranged on the main ditch moving cover and connected to the main ditch moving cover via a traction rope to drive the main ditch moving cover to move.

[0014] Compared with the above background technology, the present application is provided with a movable main groove movable cover at the position corresponding to the opening on the upper side of the main groove. When the main groove movable cover moves to the top of the main groove opening, that is, moves to the first position, it can cover the opening of the main groove, so that the main groove movable cover is used as a transition cover for smoke and dust diversion. The main groove movable cover is connected to the dust removal equipment to form a top suction, thereby improving the capture effect of smoke and dust in the main groove. At the same time, the main groove movable cover can also be separated from the opening of the main groove, that is, the second position, so that the opening of the main groove is exposed, forming a material lifting channel, facilitating the relevant equipment and materials in front of the furnace to enter the front of the furnace, effectively ensuring that the excavator is used in front of the furnace to clean the main groove adhesion residue, and is conducive to heat loss and improves the working environment in front of the furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0016] Figure 1 It is a schematic diagram of the front structure of a device for dust removal and sealing of a single iron hole provided in an embodiment of the present application;

[0017] Figure 2 It is a schematic diagram of the side structure of a device for dust removal and sealing of a single iron mouth provided in an embodiment of the present application.

[0018] Description of reference numerals:

[0019] 1. Blast furnace 2. Main ditch 3. Main ditch moving cover 4. Dust removal duct 5. Crane in front of furnace 6. Traveling wheels 7. Traction rope 8. Support frame 9. Winch traction motor 10. Track 11. Side cover of gun mud machine 12. Side cover of opening machine 13. Cavity. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0021] It should be noted that in this embodiment, the directions or positional relationships indicated by "upper", "lower", "front", "back", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present application. In addition, "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0022] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0023] like Figure 1 As shown, in this embodiment, a device for dust removal and closure of a single iron mouth is provided, which includes a main groove 2 for tapping iron from a blast furnace 1, an opening is provided on the upper side of the main groove 2 to facilitate dust discharge, and a movable main groove moving cover 3 is provided at a position corresponding to the opening on the upper side of the main groove 2. The main groove moving cover 3 serves as a dust diversion transition cover, and is used to collect dust in the main groove 2 and discharge it under the action of a dust removal device.

[0024] Since the main groove moving cover 3 is movable, the main groove moving cover 3 in the present application can be moved to the upper side opening of the main groove 2, that is, the first position, at which time the main groove moving cover 3 can at least cover the opening of the main groove 2, thereby collecting dust in the main groove 2. It should be noted that the main groove moving cover 3 is not required to be completely sealed with the main groove 2, and the two can have a certain sealing effect, thereby preventing dust from escaping as much as possible.

[0025] In addition, the main trough moving cover 3 also has a second position, that is, it moves away from the opening on the upper side of the main trough 2 through the movement of the main trough moving cover 3, so that the opening of the main trough 2 is exposed. Generally speaking, when dust removal is not required, the main trough moving cover 3 can be moved, so that the opening of the main trough 2 can be in an unobstructed state, which is convenient for forming a lifting material channel at the opening of the main trough 2, facilitating the front-of-furnace crane 5 to lift relevant equipment and materials into the front of the furnace, and is conducive to heat dissipation, improving the working environment in front of the furnace.

[0026] In summary of the above embodiments, the present application is provided with a movable main trough moving cover 3 at the corresponding position of the opening on the upper side of the main trough 2. When the main trough moving cover 3 moves above the opening of the main trough 2, that is, to the first position, it can cover the opening of the main trough 2, so that the main trough moving cover 3 is used as a transition cover for smoke and dust diversion. The main trough moving cover 3 is connected to the dust removal equipment to form top suction, thereby improving the capture effect of smoke and dust in the main trough 2. At the same time, the main trough moving cover 3 can also move away from the opening of the main trough 2, that is, the second position, so that the opening of the main trough 2 is exposed, forming a lifting material channel, facilitating the entry of relevant equipment and materials in front of the furnace into the front of the furnace, effectively ensuring that an excavator is used in front of the furnace to clean the bonded residue in the main trough 2, and is conducive to heat dissipation, improving the working environment in front of the furnace.

[0027] One end of the above-mentioned main trough 2 is connected to the blast furnace 1 and is used as the tapping mouth of the blast furnace 1. On both sides of the main trough 2, there are respectively a gun clay machine side cover 11 and an opening machine side cover 12. Please refer to Figure 2 , the gun clay machine side cover 11 and the opening machine side cover 12 extend upward and are higher than the opening of the main trough 2, so that a cavity 13 with a certain space is formed in the main trough 2 between the gun clay machine side cover 11 and the opening machine side cover 12. The cavity 13 takes the gun clay machine side cover 11 and the opening machine side cover 12 as the left and right side walls, and multiple columns can be arranged in the front and back of the cavity 13, so that the cavity 13 has a certain sealing effect. On this basis, the main trough 2 can discharge dust into the cavity 13 through the opening on its upper side. In addition, when the main trough moving cover 3 is in the first position, the main trough moving cover 3 can correspond to the cavity 13, so as to collect and discharge the dust in the cavity 13 by the negative pressure action of the dust removal equipment.

[0028] That is to say, the present application uses structures such as the gun clay machine side cover 11, the opening machine side cover 12, and the columns to form a cavity 13 with an opening on the upper side in the main trough 2. The main trough moving cover 3, the gun clay machine side cover 11, and the opening machine side cover 12 approximately form a "pin" - shaped structure. Thus, when the main trough moving cover 3 is located at the position of the cavity 13, the collection and discharge of dust can be realized; when dust collection is not required, the main trough moving cover 3 can be moved to move away from the position where the cavity 13 is located, so that mechanical equipment such as the front-of-furnace crane can perform slag cleaning operations on the main trough 2 and enter the front of the furnace with front-of-furnace equipment and materials.

[0029] The main groove mobile cover 3 of the present application is arranged on the upper side of the gun mud machine side cover 11 and the opening machine side cover 12, and moves on the upper side of the two. Specifically, a support frame 8 is arranged on the upper side of the gun mud machine side cover 11 and the opening machine side cover 12, and a track 10 for the main groove mobile cover 3 to move is laid on the support frame 8. The track 10 can be a structure such as an I-beam to ensure that the main groove mobile cover 3 can move stably.

[0030] However, it should be noted that in order to prevent the main groove movable cover 3 from affecting the normal use of the gun mud machine side cover 11 and the opening machine side cover 12 during movement, the width of the main groove movable cover 3 is usually made to correspond to the width of the cavity 13, or slightly larger than the width of the cavity 13, so as to prevent the main groove movable cover 3 from being too wide and affecting the gun mud machine side cover 11 and the opening machine side cover 12. At the same time, the main groove movable cover 3 should also be moved along the length direction of the cavity 13 as much as possible, that is, the main groove movable cover 3 should occupy as little space as possible between the gun mud machine side cover 11 and the opening machine side cover 12 during movement.

[0031] At the same time, a plurality of windows can be provided on the support frame 8, and the windows can correspond to the cavity 13, the side cover 11 of the gun mud machine and the side cover 12 of the opening machine, so as to ensure that dust can smoothly enter the main groove movable cover 3. In other words, a window is provided on the support frame 8 at a position corresponding to the cavity 13, so that when the main groove movable cover 3 is in the first position, the main groove movable cover 3 can be connected with the cavity 13, and there are as few other obstacles as possible, such as the support frame 8, between the two, so as to improve the collection efficiency of the main groove movable cover 3.

[0032] In addition, a travel wheel 6 matching the track 10 is provided on the lower side of the main groove moving cover 3 , and the arrangement of the track 10 can be arranged according to the moving path of the main groove moving cover 3 mentioned above.

[0033] Please refer to Figure 1 and Figure 2 A dust removal duct 4 is provided at the tail of the main groove movable cover 3. Since the width of the main groove movable cover 3 is not easy to be too wide, which affects the collection effect, the width of the main groove movable cover 3 is set to correspond to the cavity 13 here, but the dust removal duct 4 can be set to be longer or wider, because the dust removal duct 4 is externally connected to the dust removal equipment, and needs to provide negative pressure suction for the main groove movable cover 3, and does not need to play a collection role. Therefore, while the main groove movable cover 3 has a high capture effect, a top suction effect is formed through the dust removal duct 4, which is helpful for dust discharge. In addition, the dust removal duct 4 can be regarded as being integrally arranged with the main groove movable cover 3, so when the main groove movable cover 3 moves, it will also drive the dust removal duct 4 to move. Here, the dust removal equipment and the dust removal duct 4 are detachably connected, so as not to affect the normal movement of the main groove movable cover 3.

[0034] In addition, the main groove moving cover 3 is driven by a driving member, so that the main groove moving cover 3 moves to the first position or the second position. The driving member can be a driving motor arranged on the main groove moving cover 3, and the driving motor can directly drive the walking wheel 6 to walk, so that the main groove moving cover 3 moves.

[0035] Of course, the driving member can also be a winch traction motor 9, which is externally arranged on the main ditch moving cover 3 and connected to the main ditch moving cover 3 through a traction rope 7 to drive the main ditch moving cover 3 to move.

[0036] In summary, the present application combines the frequent slag cleaning and single-iron mouth blast furnace 1 dust removal system to design a movable "pin"-shaped closed system. While effectively ensuring that an excavator is used in front of the furnace to clean the main ditch 2 bonded residue (mainly iron and TiO2), the height of the dust removal area on both sides is reduced, making it convenient for the spare parts and consumables required for the mud gun and the opening machine to be transported in by the furnace front crane 5; two main ditch moving covers 3 with motor self-driven (or winch-driven) structures are designed to realize the movement of the main ditch moving cover 3; the main ditch moving cover 3 structure is designed to effectively solve the problem that the mobile cover has a large capture area and the smoke cannot be effectively introduced into the dust removal pipe 4.

[0037] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0038] Specific examples are used herein to illustrate the principles and implementation methods of the present application, and the description of the above embodiments is only used to help understand the method and core ideas of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A device for dust removal and sealing of a single taphole, comprising a main channel for tapping iron in a blast furnace, characterized in that: The upper side of the main groove is opened, and a movable main groove movable cover is provided at a position corresponding to the upper side of the main groove opening. The movable main groove movable cover has a first position so that the main groove movable cover covers the upper side of the main groove opening; the movable main groove movable cover has a second position so that the main groove movable cover is separated from the opening of the main groove and the opening of the main groove is exposed; A dust removal duct is provided at the rear of the main groove moving cover, the dust removal duct is externally connected to a dust removal device, and the dust removal device is detachably connected to the dust removal duct; The main groove moving cover is connected to a driving member, and the driving member drives the main groove moving cover to move to the first position or the second position.

2. The device for dust removal and sealing of a single iron hole according to claim 1, characterized in that: One end of the main groove is connected to the blast furnace for iron tapping; a gun mud machine side cover and an opening machine side cover are respectively arranged on both sides of the main groove, and the gun mud machine side cover and the opening machine side cover extend upward and are higher than the opening of the main groove to form a cavity above the opening of the main groove, and the main groove movable cover corresponds to the cavity.

3. The device for dust removal and sealing of a single iron hole according to claim 2, characterized in that: A support frame is arranged on the upper side of the side cover of the gun mud machine and the side cover of the opening machine, and a track for the main groove moving cover to travel is arranged on the support frame.

4. The device for dust removal and sealing of a single iron hole according to claim 3, characterized in that: The lower side of the main groove moving cover is provided with a walking wheel matching the track.

5. The device for dust removal and sealing of a single iron hole according to claim 3, characterized in that: A window is provided on the support frame at a position corresponding to the cavity, so that when the main groove movable cover is in the first position, the main groove movable cover is connected with the cavity.

6. The device for dust removal and sealing of a single iron hole according to claim 1, characterized in that: The driving member is a driving motor arranged on the main groove moving cover to drive the walking wheels of the main groove moving cover to move.

7. The device for dust removal and sealing of a single iron hole according to claim 1, characterized in that: The driving member is a winch traction motor, which is externally arranged on the main ditch moving cover and connected to the main ditch moving cover through a traction rope to drive the main ditch moving cover to move.

Images