A blast furnace main channel pouring mold convenient to disassemble

Abstract

The utility model discloses a convenient to dismount's blast furnace main ditch pouring mold, including first pouring baffle, second pouring baffle and forming body. The utility model through the fixed plate of fixing the forming body, then put into two barrier pouring board between, and the fixed bolt of fixed plate both sides is equipped with, and the barrier strip of fixed bolt bottom end inboard contacts in barrier pouring board, cooperates the connecting block of barrier pouring board bottom, can accurate positioning and fixed two baffle's relative position, ensure that the main ditch center line does not deviate in the pouring process, solved the uneven of slag iron scouring, the problem such as too fast erosion of main ditch refractory material caused by traditional mold center line deviation, prolongs the life of main ditch, reduces the risk of malignant production accident, and the fixed bolt is used for dismounting fixed plate on barrier pouring board, and the whole need not welding and gas cutting operation, only needs to carry out bolt tightness, connecting block pull -out and so on operation when dismounting, saves time and energy, and greatly reduces the labor intensity of workers.

Description

Technical Field

[0001] This utility model relates to the field of casting mold technology, specifically a blast furnace main trench casting mold that is easy to assemble and disassemble. Background Technology

[0002] When the main trough of the blast furnace is disassembled and recast, the center line of the main trough is not straight during the installation of the main trough mold. Once the mold is fixed, the center cannot be adjusted. In addition, the excessive pressure during casting can easily cause the weld to break, causing the center line of the main trough to deviate. Furthermore, the main trough with a serious center line deviation needs to be disassembled and recast, which increases costs and affects the normal tapping of the blast furnace.

[0003] Existing casting molds have the following drawbacks:

[0004] (1) The deviation of the center line of the main channel is not easy to be detected. After the center line deviates, the slag and iron will be eroded unevenly, causing the refractory material on one side of the main channel to be eroded too quickly, which seriously affects the service life of the main channel. At the very least, it will cause a significant reduction in the amount of iron in the main channel, and at the very worst, it will lead to serious production accidents such as slag and iron falling to the ground, affecting the normal production sequence of the blast furnace.

[0005] (2) Each time the mold is installed, it needs to be welded to the steel channel, and when the mold is removed, it needs to be removed by gas cutting, which is time-consuming and labor-intensive, increasing the labor intensity of workers;

[0006] (3) Welding during installation and gas cutting during dismantling both involve hot work, increasing safety risks. (4)

[0007] (4) Because the mold installation process is highly dependent on the workers' experience, it is impossible to achieve standardized operation and ensure the quality of the main trench pouring. Utility Model Content

[0008] The purpose of this utility model is to provide a blast furnace main trench casting mold that is easy to assemble and disassemble, so as to solve the problems in the background art mentioned above.

[0009] To achieve the above objectives, this utility model provides the following technical solution: a blast furnace main trench casting mold that is easy to assemble and disassemble, comprising a first casting partition, a second casting partition, and a molding body. The first casting partition has a second casting partition with a symmetrical structure on its right side. Both the first and second casting partitions have integrally formed connecting skirts on their top outer sides. The bottom ends of the first and second casting partitions are spliced ​​together by a connecting device. The connecting device includes a connecting block and an installation groove. The connecting block is welded to the left side of the bottom end of the second casting partition and is embedded in the installation groove opened on the right side of the bottom end of the first casting partition.

[0010] A casting cavity is formed between the first casting partition and the second casting partition. A molded body is placed in the casting cavity. The top of the molded body is mounted on a fixed plate by connecting bolts. Fixed bolts are provided through both ends of the fixed plate. Nuts threaded on the fixed bolts are located on the upper surface of the fixed plate. A barrier strip is welded to the inner side of the bottom end of the fixed bolt.

[0011] As a preferred embodiment of this utility model, the connecting block is a block-shaped component with a raised structure, and is arranged corresponding to the mounting groove with multiple sets evenly spaced from front to back.

[0012] In a preferred embodiment of this invention, the top surface of the molded body is flush with the top surface of the connecting skirt of the first casting partition and the second casting partition.

[0013] As a preferred embodiment of the present invention, the molded body has a conical structure, and there is a gap between the bottom end of the molded body and the bottom inner end face of the first casting partition and the second casting partition.

[0014] In a preferred embodiment of this invention, the connecting bolt passes through the fixing plate and is embedded in a pre-set threaded hole at the top of the molded body via a threaded connection.

[0015] As a preferred embodiment of this utility model, the fixing plate is in the form of a strip structure, and both ends of the fixing plate are semi-circular.

[0016] In a preferred embodiment of this invention, the fixing bolt is inserted into a pre-set through hole on the fixing plate, and the outer diameter of the nut is larger than the diameter of the through hole.

[0017] As a preferred embodiment of this utility model, the inner ends of the two barrier strips respectively contact the first casting partition and the second casting partition.

[0018] In a preferred embodiment of this invention, the upper end face of the barrier strip is attached to the bottom end face of the connecting skirt.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. In this utility model, the molded body is fixed on a fixed plate and then placed between two barrier casting plates. Fixed bolts are installed on both sides of the fixed plate, and the barrier strip on the inner side of the bottom end of the fixed bolt contacts the barrier casting plate. With the help of the connecting block at the bottom end of the barrier casting plate, the relative position of the two partition plates can be accurately positioned and fixed, ensuring that the center line of the main channel does not deviate during the casting process. This solves the problems of uneven slag and iron erosion and excessively rapid erosion of the refractory material in the main channel caused by the deviation of the center line of the traditional mold, extends the service life of the main channel, and reduces the risk of serious production accidents.

[0021] 2. In this utility model, the barrier pouring plate is disassembled and fixed by fixing bolts, and no welding or gas cutting is required throughout the process. During disassembly and assembly, only the bolts need to be tightened and loosened, and the connecting blocks need to be inserted and removed. This saves time and effort and greatly reduces the labor intensity of workers. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a left view of the overall structure of this utility model;

[0024] Figure 3 This is an exploded structural diagram of the casting partition and the molded body of this utility model.

[0025] Figure 4 This is an exploded structural diagram of the fixing plate and fixing bolts of this utility model.

[0026] Figure 5 This is a top view of the internal structure of the first and second casting partitions of this utility model.

[0027] In the figure: 1. First casting partition; 2. Second casting partition; 3. Connecting skirt; 4. Molded body; 5. Fixing plate; 6. Connecting bolt; 7. Fixing bolt; 8. Nut; 9. Partition strip; 10. Connecting device; 1001. Connecting block; 1002. Mounting groove. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0029] In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, in the description of this utility model, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances. "Multiple" means two or more, and unless otherwise explicitly limited, all of them fall within the scope of protection of this utility model.

[0031] Example

[0032] like Figure 1-5 As shown, this utility model provides a technical solution: including a first casting partition 1, a second casting partition 2, and a molded body 4. The right side of the first casting partition 1 is provided with a second casting partition 2 in a symmetrical structure. Both the top outer sides of the first casting partition 1 and the second casting partition 2 are provided with integrally formed connecting skirts 3. The bottom ends of the first casting partition 1 and the second casting partition 2 are spliced ​​by a connecting device 10. The connecting device 10 includes a connecting block 1001 and an installation groove 1002. The connecting block 1001 is welded to the left side of the bottom end of the second casting partition 2. The connecting block 1001 is installed in the installation groove 1002 opened on the right side of the bottom end of the first casting partition 1 in an embedded manner.

[0033] A casting cavity is formed between the first casting partition 1 and the second casting partition 2. A molded body 4 is placed in the casting cavity. The top of the molded body 4 is installed on the fixed plate 5 by connecting bolts 6. Fixed bolts 7 are provided through both ends of the fixed plate 5. Nuts 8 threaded on the fixed bolts 7 are located on the upper end face of the fixed plate 5. A barrier strip 9 is welded to the inner side of the bottom end of the fixed bolts 7.

[0034] The connecting block 1001 is a block-shaped component with a raised structure, and is set in a corresponding manner to the mounting groove 1002. Multiple sets are provided at equal intervals from front to back, which can realize the rapid splicing and positioning of two barrier casting plates.

[0035] The top surface of the molded body 4 is flush with the top surface of the connecting skirt 3 of the first casting partition 1 and the second casting partition 2, so that the upper surface of the casting body has a flush structure.

[0036] The molded body 4 has a conical structure, and there is a gap between the bottom end of the molded body 4 and the bottom inner end face of the first casting partition 1 and the second casting partition 2, so that the bottom can be a one-piece structure.

[0037] The connecting bolt 6 passes through the fixing plate 5 and is embedded in the pre-set threaded hole at the top of the molding body 4 through a threaded connection. This can fix the molding body on the fixing plate, making it easier to place the molding body and preventing deviations in the placement of the molding body.

[0038] The fixing plate 5 has a slat structure, and both ends of the fixing plate 5 have a semi-circular structure, which increases the protective function.

[0039] The fixing bolt 7 is inserted into the pre-set through hole on the fixing plate 5, and the outer diameter of the nut 8 is larger than the diameter of the through hole, which facilitates the insertion of the fixing bolt and can be fixed by the nut.

[0040] The inner ends of the two barrier strips 9 are in contact with the first pouring baffle 1 and the second pouring baffle 2 respectively, which can ensure that the molded body is in the center position and that the center line of the main trench does not deviate during the pouring process.

[0041] The upper surface of the barrier strip 9 is attached to the bottom surface of the connecting skirt 3, which facilitates the quick positioning of the barrier strip.

[0042] Working principle:

[0043] In use, the connecting block 1001 welded to the left side of the bottom end of the second pouring partition 2 is embedded into the mounting groove 1002 opened on the right side of the bottom end of the first pouring partition 1, so that the first pouring partition 1 and the second pouring partition 2 are spliced ​​in a symmetrical structure to form a preliminary pouring frame. At this time, the connecting skirt 3 on the outer side of the top of the two are in the corresponding position.

[0044] In the casting cavity formed between the first casting partition 1 and the second casting partition 2, a cone-shaped molded body 4 is placed, ensuring that there is a gap between the bottom end of the molded body 4 and the bottom inner end face of the first casting partition 1 and the second casting partition 2, and that the top surface of the molded body 4 is flush with the top surface of the connecting skirt 3 of the first casting partition 1 and the second casting partition 2.

[0045] Place the fixing plate 5 on the top of the molded body 4, so that the connecting bolt 6 passes through the fixing plate 5 and is embedded in the pre-set threaded hole at the top of the molded body 4 by means of threaded connection. Tighten the connecting bolt 6 to fix the molded body 4 on the fixing plate 5.

[0046] Insert the fixing bolts 7 into the pre-set through holes at both ends of the fixing plate 5, so that the inner ends of the barrier strips 9 welded to the inner side of the bottom end of the fixing bolts 7 contact the first casting partition 1 and the second casting partition 2 respectively, and the upper end face of the barrier strips 9 is attached to the bottom end face of the connecting skirt 3. Then, thread the nuts 8 onto the fixing bolts 7. The nuts 8 are located on the upper end face of the fixing plate 5. Since the outer diameter of the nuts 8 is larger than the diameter of the through holes, tightening the nuts 8 can firmly fix the fixing plate 5 and the casting partitions, and then the casting can be carried out.

[0047] During disassembly, loosen and remove the nut 8 on the fixing bolt 7, pull the fixing bolt 7 out of the through hole of the fixing plate 5, so that the barrier strip 9 is separated from the connecting skirt 3 and the casting partition. Loosen the connecting bolt 6 and remove the connecting bolt 6 from the threaded hole at the top of the molded body 4 and the fixing plate 5. Then remove the fixing plate 5 and the molded body 4 from the casting cavity. Pull the second casting partition 2 to the right in the horizontal direction so that the connecting block 1001 is pulled out from the mounting groove 1002 of the first casting partition 1, thereby separating the first casting partition 1 from the second casting partition 2 and realizing the function of quick installation and disassembly.

[0048] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A blast furnace main trench casting mold that is easy to assemble and disassemble, comprising a first casting partition (1), a second casting partition (2), and a molding body (4), characterized in that: The first pouring partition (1) has a second pouring partition (2) with a symmetrical structure on the right side. Both the first pouring partition (1) and the second pouring partition (2) have an integrally formed connecting skirt (3) on the outer side of the top of the second pouring partition (2). The bottom ends of the first pouring partition (1) and the second pouring partition (2) are spliced ​​by a connecting device (10). The connecting device (10) includes a connecting block (1001) and an installation groove (1002). The connecting block (1001) is welded to the left side of the bottom end of the second pouring partition (2). The connecting block (1001) is installed in the installation groove (1002) opened on the right side of the bottom end of the first pouring partition (1) in an embedded manner. A casting cavity is formed between the first casting partition (1) and the second casting partition (2). A molded body (4) is placed in the casting cavity. The top of the molded body (4) is mounted on the fixing plate (5) by connecting bolts (6). Fixing bolts (7) are provided through both ends of the fixing plate (5). Nuts (8) threaded on the fixing bolts (7) are located on the upper end face of the fixing plate (5). A barrier strip (9) is welded to the inner side of the bottom end of the fixing bolts (7).

2. The blast furnace main trench casting mold that is easy to assemble and disassemble according to claim 1, characterized in that: The connecting block (1001) is a block-shaped component with a raised structure, and is provided in a corresponding manner to the mounting groove (1002), with multiple sets arranged at equal intervals from front to back.

3. The blast furnace main trench casting mold that is easy to assemble and disassemble according to claim 1, characterized in that: The top surface of the molded body (4) is flush with the top surface of the connecting skirt (3) of the first casting partition (1) and the second casting partition (2).

4. The blast furnace main trench casting mold that is easy to assemble and disassemble according to claim 1, characterized in that: The molded body (4) has a conical structure, and there is a gap between the bottom end of the molded body (4) and the bottom inner end face of the first casting partition (1) and the second casting partition (2).

5. The blast furnace main trench casting mold that is easy to assemble and disassemble according to claim 1, characterized in that: The connecting bolt (6) passes through the fixing plate (5) and is embedded in the pre-set threaded hole at the top of the molded body (4) by means of threaded connection.

6. The blast furnace main trench casting mold that is easy to assemble and disassemble according to claim 1, characterized in that: The fixing plate (5) has a slat structure, and both ends of the fixing plate (5) have a semi-circular structure.

7. The blast furnace main trench casting mold that is easy to assemble and disassemble according to claim 1, characterized in that: The fixing bolt (7) is inserted into the through hole on the fixing plate (5), and the outer diameter of the nut (8) is larger than the diameter of the through hole.

8. The blast furnace main trench casting mold that is easy to assemble and disassemble according to claim 1, characterized in that: The inner ends of the two barrier strips (9) are respectively in contact with the first casting partition (1) and the second casting partition (2).

9. The blast furnace main trench casting mold that is easy to assemble and disassemble according to claim 1, characterized in that: The upper surface of the barrier strip (9) is attached to the bottom surface of the connecting skirt (3).

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