Leakage-proof device for iron runner of iron-making blast furnace

Abstract

The utility model relates to the technical field of iron-making blast furnace iron runners, and discloses an iron-making blast furnace iron runner leakage-proof device which comprises an iron runner made of fireproof materials, a lining layer is arranged in the iron runner in a connected mode, the lining layer at one end of the iron runner extends out of the end face of the iron runner, and a gap exists between the lining layer at the other end of the iron runner and the end face of the iron runner. A groove is formed in the side, close to the gap, of each tapping channel in a connected mode, a driving assembly capable of driving the two adjacent tapping channels and the lining layer to be matched with each other is arranged in each groove in a connected mode, mounting plates are arranged on the outer sides of the tops of the tapping channels through bolts in a connected mode, and protective shells are arranged on the mounting plates in a hinged mode; and the protection shells are matched with each other, so that the tapping channel can be isolated from the outside. Compared with the prior art, the utility model has the advantages that the adjacent tapping channel prefabricated parts can be tightly matched conveniently, molten iron leakage is avoided, and the safety risk caused by molten iron splashing is prevented conveniently.

Description

TECHNICAL FIELD

[0001] The utility model relates to iron channel of blast furnace technology field of iron making, specifically point to one kind is prevented and leaked device of iron channel of blast furnace of iron making. BACKGROUND

[0002] Iron channel of blast furnace is the traditional Chinese medicine component of blast furnace iron making system, and is mainly used for conveying the mixture of high-temperature molten iron and slag to leave blast furnace.

[0003] The existing blast furnace iron channel is mostly made into a prefabricated part after forming, maintenance, baking and other processes of refractory material, and then the prefabricated part is transported to the site for masonry into the required shape. Leakage may occur due to loose connection at the connection between two prefabricated parts, resulting in waste of molten iron, and even damage to the prefabricated part. In addition, the existing blast furnace iron channel does not have a protection function, and the molten iron may splash during the flowing process, causing safety risks. UTILITY MODEL CONTENT

[0004] I. Technical problems to be solved

[0005] The technical problem to be solved by the utility model is that leakage may occur due to loose connection of the prefabricated part, resulting in waste of molten iron, and even damage to the prefabricated part. The blast furnace iron channel lacks a protection function, and the molten iron may splash, causing safety risks.

[0006] II. Technical scheme

[0007] To solve the above technical problems, the utility model provides a technical scheme of a leakage prevention device for an iron channel of a blast furnace for iron making, which comprises an iron channel made of fireproof material, an inner lining layer is connected in the iron channel, the inner lining layer extends out of the end face of the iron channel at one end of the iron channel, and a gap exists between the inner lining layer and the end face of the iron channel at the other end of the iron channel. A groove is connected to one side of the iron channel close to the gap, a driving assembly is connected in the groove to drive the mutual cooperation of two adjacent iron channels and the inner lining layer, mounting plates are connected to the outer side of the top of the iron channel by bolts, a protective shell is hingedly connected to the mounting plate, and the protective shell can isolate the iron channel from the outside.

[0008] Further, the driving assembly comprises a triangular block connected to the side of the inner lining layer away from the gap, the groove is connected to the side of the iron channel close to the gap, a driving block is slidingly connected in the groove, the triangular block and the inclined surface of the driving block are oppositely matched, a threaded rod is rotatably connected to the bottom end of the driving block, the threaded rod penetrates downward through the iron channel and is connected at the end to a driving handle, the driving handle is driven to slide upward along the driving groove by rotating the driving handle, the driving handle penetrates the threaded rod of the iron channel by the threaded connection, and the driving block is driven to slide upward along the driving groove, the driving block is matched with the inclined surface of the triangular block to drive the triangular block to drive the two iron channels and the inner lining layer to approach each other and realize tight cooperation.

[0009] Further, the top end of the driving groove is provided with a trough, and one side of the trough penetrates the trough, the depth of the driving groove is not less than twice the height of the driving block, when the driving block is located at the bottom of the driving groove, the top of the driving groove can reserve a space for the triangular block, and the other side of the inner lining layer drives the triangular block to pass through the top of the driving groove.

[0010] Further, the installation plate is hingedly connected with the telescopic air cylinder outside the protective shell, the other end of the telescopic air cylinder is hingedly connected with the middle part of the outer wall of the protective shell, the telescopic air cylinder drives the protective shell to rotate towards the trough by stretching the telescopic air cylinder on both sides, and the height of the protection on both sides of the trough can be improved.

[0011] Further, the protective shell is in an arc structure or a right-angle structure.

[0012] Further, the trough comprises a main trough, and the main trough is connected with a stepped groove on both sides, and the inner wall of the trough is matched, so that the trough is suitable for different flow rates of molten iron.

[0013] III. Advantages

[0014] Compared with the prior art, the advantages of the utility model lie in that:

[0015] The adjacent troughs are matched at the head and tail, and the driving assembly is started to make the adjacent troughs closely match, so that the molten iron is prevented from leaking from the connection; the hinged setting of the protective shells on both sides facilitates the protection of the trough, which not only prevents the molten iron from splashing out to cause injury accidents, but also reduces the possibility of the molten iron being oxidized into dross. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structure schematic of the iron trough leakage prevention device for the iron-making blast furnace of the utility model Figure 1 .

[0017] Figure 2 is a structure schematic of the iron trough leakage prevention device for the iron-making blast furnace of the utility model Figure 2 .

[0018] Figure 3 is a half-section structure schematic of the iron trough leakage prevention device for the iron-making blast furnace of the utility model.

[0019] Figure 4 is a main-section structure schematic of the iron trough leakage prevention device for the iron-making blast furnace of the utility model.

[0020] As shown in the drawings: 1, trough, 2, inner lining layer, 3, gap, 4, groove, 5, protective shell, 7, driving block, 8, triangular block, 9, threaded rod, 10, driving handle, 11, telescopic air cylinder, 12, stepped groove. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] Embodiment one

[0023] In combination with the accompanying drawings Figure 1 , Figure 2 , Figure 3 and Figure 4 , a leakage-proof device for an iron runner of an iron-making blast furnace comprises an iron runner 1 made of fireproof material, the iron runner 1 comprises a main runner, ladder grooves 12 are arranged on both sides of the main runner, an inner lining 2 is arranged in the iron runner 1, adjacent iron runners 1 are connected end to end, the inner lining 2 at one end of the iron runner 1 extends out of the end face of the iron runner 1, a gap 3 exists between the inner lining 2 at the other end and the end face of the iron runner 1, a groove 4 is arranged on the side of the iron runner 1 close to the gap 3, a driving assembly that can drive two adjacent iron runners 1 and the inner lining 2 to cooperate with each other is arranged in the groove 4, the driving assembly comprises a triangular block 8 connected to the side of the inner lining 2 away from the gap 3, the groove 4 is arranged on the side of the iron runner 1 close to the gap 3, a driving block 7 is slidably arranged in the groove 4, the groove 4 is arranged through the iron runner 1 at the top and on one side, the depth of the groove 4 is not less than twice the height of the driving block 7, the triangular block 8 and the inclined surface of the driving block 7 are oppositely arranged in cooperation, a threaded rod 9 is rotatably arranged at the bottom end of the driving block 7, and the threaded rod 9 is arranged through the iron runner 1 downwardly at the end and connected with a driving handle 10.

[0024] The main runner and the ladder grooves 12 are arranged in cooperation, which is convenient for the molten iron with different flow rates; and the driving assembly is arranged to drive the two iron runners to cooperate with each other, so that the molten iron is prevented from leaking from the connection between the two iron runners.

[0025] Embodiment two

[0026] On the basis of embodiment one, in combination with the accompanying drawings Figure 3 , mounting plates are arranged on the outer sides of the top of the iron runner 1 through bolts, a protective shell 5 is hingedly arranged on the mounting plates, the protective shell 5 is in an arc structure or a right-angle structure, telescopic cylinders 11 are hingedly arranged on the outer sides of the mounting plates and the protective shell 5, and the other ends of the telescopic cylinders 11 are hingedly arranged on the middle parts of the outer walls of the protective shell 5, so that the iron runner 1 can be isolated from the outside in cooperation with the protective shell 5.

[0027] Through the cooperation of the telescopic air cylinder and the protective shell in the above structure, the two side protective shells can be driven to approach each other through the telescopic air cylinder, and thus the safety risk caused by the splashing of molten iron in the taphole can be avoided.

[0028] The specific use method is as follows:

[0029] Firstly, the depth of the groove 4 is not less than twice the height of the driving block 7, when the driving block 7 is located at the bottom of the groove 4, the top of the groove 4 can reserve a space for the triangular block 8 to avoid, so as to facilitate the other side lining layer 2 to drive the triangular block 8 to pass through the top of the groove 4 to realize the head-tail cooperation of the adjacent tapholes 1; then, through the start of the driving assembly, the adjacent tapholes 1 are tightly matched to avoid the leakage of molten iron from the connection, by rotating the driving handle 10, the driving handle 10 drives the driving block 7 to slide upward along the groove 4 through the threaded rod 9 and the threaded penetration cooperation of the taphole 1, and the driving block 7 drives the triangular block 8 through the cooperation of the inclined surface to drive the two side tapholes 1 and the lining layer 2 to approach each other to realize the tight cooperation;

[0030] By starting the two side telescopic air cylinders 11 to stretch, the telescopic air cylinders 11 drive the protective shells 5 to rotate around the hinged parts of the protective shells 5 and the mounting plates as the shafts to the taphole 1 direction, which can improve the height of the protection on both sides of the taphole 1, facilitate the protection of the taphole 1, and avoid the splashing of molten iron to cause injury accidents, when the free ends of the protective shells 5 cooperate with each other, the isolation of the taphole 1 from the outside can be realized, and the possibility of the oxidation of molten iron into dregs can be reduced.

[0031] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or action from another entity or action, without necessarily requiring or implying any such actual relationship or order between these entities or actions. Moreover, the terms "comprises", "comprising", or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article, or equipment.

[0032] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

[0033] The above has described the utility model and its implementation mode, which is not restrictive, and the drawings only show one of the implementation modes of the utility model, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired thereby, without departing from the creative purpose of the utility model, similar structural modes and embodiments are not creatively designed, which should belong to the protection scope of the utility model.

Claims

1. A leakage prevention device for a taphole of an ironmaking blast furnace, comprising a taphole (1) made of a fireproof material, characterized in that: The inner lining (2) is arranged in the trough (1), the adjacent troughs (1) are connected end to end, the inner lining (2) at one end of the trough (1) extends out of the end face of the trough (1), and a gap (3) exists between the inner lining (2) at the other end and the end face of the trough (1); a groove (4) is arranged on the side of the trough (1) close to the gap (3); a driving assembly is arranged in the groove (4) and can drive the two adjacent troughs (1) and the inner lining (2) to cooperate with each other; mounting plates are arranged on the top outer side of the trough (1) through bolt connection; a protective shell (5) is hingedly arranged on the mounting plate; and the protective shell (5) can be cooperated with each other to isolate the trough (1) from the outside.

2. A leakage prevention device for a trough of a blast furnace for producing iron according to claim 1, characterized in that: The driving assembly includes a triangular block (8) connected to the inner lining (2) away from the gap (3); the groove (4) is arranged on the side of the trough (1) close to the gap (3); a driving block (7) is slidably arranged in the groove (4); the triangular block (8) is cooperated with the inclined surface of the driving block (7); the driving block (7) is rotatably connected with a threaded rod (9) at the bottom end; and the threaded rod (9) penetrates the trough (1) downward through the thread and is connected with a driving handle (10) at the end.

3. A leakage prevention device for an iron notch of a blast furnace for smelting iron according to claim 2, characterized in that: The top end and one side of the groove (4) penetrate the trough (1); and the depth of the groove (4) is not less than twice the height of the driving block (7).

4. The leakage prevention device for iron notch of blast furnace for iron making according to claim 1, characterized in that: The mounting plate is hingedly connected with a telescopic air cylinder (11) outside the protective shell (5); and the other end of the telescopic air cylinder (11) is hingedly connected with the middle part of the outer wall of the protective shell (5).

5. The leakage prevention device for iron notch of blast furnace for iron making according to claim 1, characterized in that: The protective shell (5) is an arc structure or a right angle structure.

6. A leakage prevention device for iron notch of blast furnace for iron making according to claim 1, wherein: The trough (1) includes a main groove, and a stepped groove (12) is arranged on the both sides of the main groove; and the inner wall of the trough (1) is cooperated.

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