Detachable combined mold for pouring main iron runner of blast furnace

Abstract

The utility model relates to a detachable combined mould for pouring a main iron runner of a blast furnace, which comprises a bottom mould and two side moulds, the two side moulds are arranged on the left side and the right side of the bottom mould, first dovetail grooves are arranged on the opposite sides of the two side moulds, first dovetail tenons are arranged on the left side and the right side of the bottom mould, and the first dovetail tenons are arranged in the dovetail grooves. The left first dovetail joint and the right first dovetail joint are in mortise and tenon connection with the left first dovetail groove and the right first dovetail groove respectively, blocking molds are arranged on the front side and the rear side of the bottom mold, the two blocking molds are fixed to the tops of the two side molds through fasteners, and the bottom mold and the left side mold and the right side mold are in mortise and tenon connection under the cooperation of the first dovetail grooves and the first dovetail joints. The connection between the side die and the bottom die is guaranteed, the side die is matched, slurry is prevented from leaking from a gap when a refractory material is poured, the integrity of a main iron hook lining is guaranteed, die parts can be independently replaced when being abraded or damaged, and the convenience in the using process is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of tools for blast furnace main iron troughs, specifically to a detachable and modular mold for pouring blast furnace main iron troughs. Background Technology

[0002] The main blast furnace trough is a crucial facility in front of the blast furnace, its function being to separate molten slag and iron. Based on whether molten iron is stored within the trough during tapping, it is classified as either molten iron-storage type or non-molten iron-storage type. Molten iron-storage type main blast furnace troughs are widely used because of their stable temperature and the fact that molten iron does not directly erode the refractory material at the bottom of the trough during tapping. However, because the main blast furnace trough stores high-temperature molten iron for extended periods, and its lining is constantly subjected to erosion and corrosion from slag and iron, it requires periodic recasting using molds.

[0003] During the periodic maintenance of the blast furnace main hook, a mold needs to be temporarily installed inside the main hook. Refractory material is poured into the gap between the mold and the inner wall of the hook to repair the lining. However, these molds mostly adopt an integral structure design. When local wear occurs, in order to ensure that the refractory layer of the cast main hook has a good performance, the mold needs to be replaced, which is costly. Utility Model Content

[0004] The purpose of this invention is to provide a detachable and modular mold for casting the main iron trough of a blast furnace, so as to overcome the shortcomings of the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A detachable and modular mold for casting the main iron trough of a blast furnace includes a bottom mold and two side molds. The two side molds are located on the left and right sides of the bottom mold. Each of the two side molds has a first dovetail groove on its opposite side. Each of the left and right sides of the bottom mold has a first dovetail tenon. The two first dovetail tenons are respectively connected to the two first dovetail grooves on the left and right sides by tenon and tenon. Each of the front and rear sides of the bottom mold has a retaining mold. Both retaining molds are fixed to the top of the two side molds by fasteners.

[0007] The beneficial effects of this utility model are: the bottom mold and the two side molds on the left and right sides are connected by mortise and tenon joints with the first dovetail groove and the first dovetail tenon, which ensures the connection between the side mold and the bottom mold. In addition, the side mold prevents the slurry from leaking from the gaps when pouring refractory materials, ensuring the integrity of the inner lining of the main iron hook. Furthermore, it can be replaced individually when the mold parts are worn or damaged, improving the convenience of use.

[0008] Based on the above technical solution, the present invention can be further improved as follows.

[0009] Furthermore, both of the side molds are fixed to the first dovetail tenon by fasteners.

[0010] The beneficial effect of adopting the above-mentioned further solution is that it makes the connection between the bottom mold and the side mold more stable.

[0011] Furthermore, the bottom mold, side mold, and retaining mold are all equipped with alloy steel skeletons inside.

[0012] The beneficial effect of adopting the above-mentioned further solutions is to ensure the stability of the bottom mold, side mold, and stop mold during long-term use.

[0013] Furthermore, each of the two side molds has a vent hole at the top of its horizontal section. There are several vent holes, which are evenly distributed at the top of the horizontal sections of the two side molds.

[0014] The beneficial effect of adopting the above-mentioned further solutions is to ensure the normal casting and shaping of refractory materials.

[0015] Furthermore, support blocks are fixedly installed at the bottom of the horizontal sections of both side molds, and connecting blocks that respectively engage with the two support blocks are provided on the left and right sides of both side molds.

[0016] The beneficial effects of adopting the above-mentioned further solution are: by having the support block contact the ground on both sides of the main iron hook, the stability of the entire mold during use is ensured, and the stability of the mold during use is enhanced by the action of the connecting block.

[0017] Furthermore, each of the two side molds has a lifting hole at the top of its horizontal section. There are several lifting holes, which are evenly distributed at the top of the horizontal sections of the two side molds.

[0018] The advantage of adopting the above-mentioned further solution is that the entire assembled mold can be lifted through the lifting hole, which facilitates its relocation.

[0019] Furthermore, the bottom mold and the side mold are provided with second dovetail grooves on both the front and rear sides, and the two blocking molds are fixedly installed with second dovetail tenons on opposite sides.

[0020] The beneficial effect of adopting the above-mentioned further solution is to strengthen the connection between the front and rear molds and the bottom and side molds. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of one perspective of the detachable and modular mold for casting the main iron trough of a blast furnace according to this utility model.

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of the forward-viewing program of this utility model;

[0023] Figure 3 This is a three-dimensional structural diagram of one perspective of the detachable and modular mold for casting the main iron trough of a blast furnace according to this utility model.

[0024] Figure 4 This is a three-dimensional structural diagram of the detachable and modular mold for pouring the main iron trough of a blast furnace, taken from another perspective.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Bottom mold; 2. Side mold; 3. First dovetail groove; 4. First dovetail tenon; 5. Stop mold; 6. Vent hole; 7. Support block; 8. Connecting block; 9. Lifting hole; 10. Second dovetail groove; 11. Second dovetail tenon. Detailed Implementation

[0027] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0028] Example 1, as Figures 1-4 As shown, a detachable and modular mold for casting the main iron trough of a blast furnace includes a bottom mold 1 and two side molds 2. The two side molds 2 are located on the left and right sides of the bottom mold 1. The opposite sides of the two side molds 2 are provided with first dovetail grooves 3. The left and right sides of the bottom mold 1 are provided with first dovetail tenons 4. The two first dovetail tenons 4 are respectively connected to the two first dovetail grooves 3 by tenon and tenon. The front and rear sides of the bottom mold 1 are provided with retaining molds 5. The two retaining molds 5 are fixed to the top of the two side molds 2 by fasteners.

[0029] The two side molds 2 are installed along the first dovetail tenon 4 to complete the connection with the bottom mold 1, and the retaining mold 5 is installed by fasteners to prevent refractory material from entering the internal space formed by the bottom mold 1 and the side molds 2, which would cause inconvenience in subsequent disassembly and assembly.

[0030] Example 2 is a further improvement on Example 1, and it is as follows: both side molds 2 are fixed to the first dovetail tenon 4 by fasteners.

[0031] With this configuration, multiple mounting holes are provided at the connection between the side mold 2 and the first dovetail tenon 4, thereby strengthening the connection between the side mold 2 and the bottom mold 1 through fasteners.

[0032] Example 3 is a further improvement based on Example 1, and its specific details are as follows: All three molds, namely the bottom mold 1, the side mold 2 and the stop mold 5, are provided with an alloy steel skeleton (not shown in the figure).

[0033] With this setup, the interior of the bottom mold 1, side mold 2, and stop mold 5 is all [contained / contained].

[0034] Example 4 is a further improvement based on Example 1. Specifically, the top of the horizontal section of each of the two side molds 2 is provided with a number of vent holes 6, which are evenly distributed on the top of the horizontal section of the two side molds 2.

[0035] This configuration allows the gas generated during the pouring process to be discharged through the multiple vent holes 6 on the left and right sides, ensuring the molding effect of the main iron trench lining.

[0036] Example 5 is a further improvement based on Example 1, and it is as follows: support blocks 7 are fixedly installed at the bottom of the horizontal sections of the two side molds 2, and connecting blocks 8 are respectively provided on the left and right sides of the two stop molds 5 to be engaged with the two support blocks 7.

[0037] This configuration ensures that when placing the mold, the support block 7 contacts the ground on both sides of the main iron trench, thus providing a certain support for the mold and enhancing its stability during subsequent use. Furthermore, when installing the retaining mold 5, the connecting block 8 assists in positioning and installation.

[0038] Example 6 is a further improvement based on Example 1. Specifically, the top of the horizontal section of each of the two side molds 2 is provided with a number of lifting holes 9, which are evenly distributed on the top of the horizontal section of the two side molds 2.

[0039] With this setup, the position of the mold can be changed by installing a lifting device inside the lifting hole 9 (a technique well known to those skilled in the art, so it will not be described in detail).

[0040] Example 7 is a further improvement based on Example 1. Specifically, the bottom mold 1 and the side mold 2 are provided with second dovetail grooves 10 on both the front and rear sides. The two stop molds 5 are fixedly installed with second dovetail tenons 11 on opposite sides. There are several second dovetail grooves 10 and they are evenly distributed on the front and rear sides of the bottom mold 1 and the side mold 2.

[0041] With this design, the second dovetail tenon 11 and the second dovetail groove 10 work together during installation to make the mold 5 more stable after it is fixed.

[0042] 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. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A detachable and modular mold for casting the main iron trough of a blast furnace, comprising a bottom mold (1) and side molds (2), characterized in that: There are two side molds (2) located on the left and right sides of the bottom mold (1). The opposite sides of the two side molds (2) are provided with first dovetail grooves (3). The left and right sides of the bottom mold (1) are provided with first dovetail tenons (4). The two first dovetail tenons (4) are respectively connected to the two first dovetail grooves (3). The front and rear sides of the bottom mold (1) are provided with stop molds (5). The two stop molds (5) are fixed to the top of the two side molds (2) by fasteners.

2. The detachable and modular mold for casting the main iron trough of a blast furnace according to claim 1, characterized in that: Both of the side molds (2) are fixed to the first dovetail tenon (4) by fasteners.

3. The detachable and modular mold for casting the main iron trough of a blast furnace according to claim 1, characterized in that: The bottom mold (1), side mold (2) and retaining mold (5) are all equipped with alloy steel frames inside.

4. The detachable and modular mold for casting the main iron trough of a blast furnace according to claim 1, characterized in that: The top of the horizontal section of each of the two side molds (2) is provided with an exhaust hole (6). There are several exhaust holes (6), which are evenly distributed on the top of the horizontal section of the two side molds (2).

5. A detachable and modular mold for casting the main iron trough of a blast furnace according to claim 1, characterized in that: Support blocks (7) are fixedly installed at the bottom of the horizontal sections of the two side molds (2), and connecting blocks (8) that are respectively engaged with the two support blocks (7) are provided on the left and right sides of the two stop molds (5).

6. The detachable and modular mold for casting the main iron trough of a blast furnace according to claim 1, characterized in that: The top of the horizontal section of each of the two side molds (2) is provided with a lifting hole (9). There are several lifting holes (9), which are evenly distributed on the top of the horizontal section of the two side molds (2).

7. A detachable and modular mold for casting the main iron trough of a blast furnace according to claim 1, characterized in that: The bottom mold (1) and the side mold (2) are provided with second dovetail grooves (10) on both the front and rear sides, and the two blocking molds (5) are fixedly installed with second dovetail tenons (11) on opposite sides.

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