A steel fiber castable prefabricated part with a guard plate

Abstract

The utility model relates to a steel fiber castable preform with a guard plate in the technical field of preformed parts, comprising a preformed part body having a flow channel installation groove running longitudinally through the middle of the top surface in the transverse direction, a preformed liner with a flow channel and a guard plate, wherein the preformed liner is movably plugged into the inner side wall of the preformed part body up and down and fits in the flow channel installation groove; the tops of the two side walls of the preformed part body are detachably connected with guard plates, and the guard plates are pressed onto the corresponding top surfaces of the preformed liner side walls, and the inner side of the guard plates is provided with an inner extension portion extending to above the preformed liner flow channel; the utility model can block splashing of the castable material due to the provision of the inner extension portion when splashing occurs, so as to prevent the castable material from flying out; due to the provision of the preformed liner, when the preformed liner is damaged due to high temperature during long-term use, the preformed liner can be replaced separately, thereby reducing the replacement cost.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated parts, in particular to a steel fiber casting material prefabricated part with a guard plate. Background Art

[0002] With the continuous development of industry, the demand for metal materials in industrial production is increasing. Therefore, various types of blast furnaces are needed to smelt metals. Among them, a melting furnace is a high-temperature smelting furnace used for smelting. In the process of building a melting furnace, castable prefabricated parts are needed. Castable prefabricated parts are a kind of prefabricated refractory products. They are easy to construct and install, and can effectively improve the efficiency of furnace building. However, there are still some shortcomings in the castable prefabricated parts on the market, such as:

[0003] 1. Most of the existing castable prefabricated parts have fixed structures. When the flow rate of the castable is high, it is easy to cause the castable to splash out;

[0004] 2. Since the castable prefabricated parts inside the aluminum melting furnace will come into contact with high-temperature materials, the castable prefabricated parts will undergo certain losses and structural changes under the action of high temperature during long-term use. However, the castable prefabricated parts currently on the market have a single structure, which makes it inconvenient to quickly replace the damaged parts of the castable prefabricated parts, reducing the effective service life of the castable prefabricated parts.

[0005] Therefore, we propose a steel fiber castable preform with a guard plate to solve at least one of the above-mentioned defects. Utility Model Content

[0006] In order to overcome the deficiencies in the background technology, the utility model discloses a steel fiber castable prefabricated part with a guard plate.

[0007] In order to achieve the above-mentioned invention object, the utility model adopts the following technical solutions:

[0008] A steel fiber castable preform with a guard plate, comprising a preform body with a flow channel installation groove running longitudinally through the middle of the top surface, a preformed liner with a flow channel and a guard plate, wherein the preformed liner is movably plugged into the inner side wall of the preform body and fits the flow channel installation groove; the tops of both side walls of the preform body are detachably connected with guard plates, which are pressed onto the corresponding top surfaces of the preformed liner side walls, and the inner side of the guard plate is provided with an inner extension portion extending to above the flow channel of the preformed liner.

[0009] Preferably, the tops of both side walls of the preform body are provided with transversely penetrating slots, and the guard plate has a snap-fitting portion that can be slidably snap-fitted into the corresponding snap-fitting slots.

[0010] Preferably, the bottom of the guard plate is provided with a lower extension portion which is fitted to the inner side wall of the corresponding flow channel mounting groove, and the bottom surface of the lower extension portion is pressed to the top surface of the corresponding prefabricated liner side wall.

[0011] Preferably, a first insertion groove is provided at a position of the inner side wall of the preform body corresponding to the lower extension portion, and a first matching portion is provided on the outer side wall of the lower extension portion to match the first insertion groove.

[0012] Preferably, a penetrating mounting hole is provided on the side wall of the prefabricated component body at a position corresponding to the first insertion slot, a locking bolt is passed through the mounting hole, and the locking bolt is threadedly connected to the first matching portion.

[0013] Preferably, the outer side portion of the top surface of the prefabricated lining side wall is provided with a convex ridge arranged along its length direction, and the outer side portion of the bottom surface of the lower extension portion has a recessed portion that cooperates with the convex ridge.

[0014] Preferably, a second insertion groove is provided at a position of the inner side wall of the prefabricated component body corresponding to the prefabricated lining, and a second matching portion that fits in the second insertion groove is provided on the outer side wall of the prefabricated lining.

[0015] Preferably, the inner extension portion is an arc-shaped structure with a transverse middle portion bulging upward.

[0016] Due to the adoption of the above-mentioned technical solution, the utility model has the following beneficial effects:

[0017] 1. The inner extension part can block the splashing castable when the castable splashes, thus preventing the castable from flying out;

[0018] 2. Due to the setting of the prefabricated lining, when it is damaged due to high temperature during long-term use, the prefabricated lining can be replaced separately, reducing the replacement cost;

[0019] 3. By connecting the locking bolts with the guard plate which is almost not in contact with the castable material, it not only achieves the function of fixing the prefabricated lining, but also avoids the situation that the prefabricated lining is damaged due to the presence of locking bolts, resulting in large local stress and long-term contact with high-temperature materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 It is the front view of the utility model;

[0022] Figure 3 It is a schematic diagram of the explosion structure of the utility model;

[0023] Figure 4 It is the front view of the explosion structure of the utility model.

[0024] In the figure: 1. prefabricated body; 11. flow channel mounting groove; 12. clamping groove; 13. first insertion groove; 14. mounting hole; 15. second insertion groove; 2. prefabricated lining; 21. convex ridge; 22. second matching part; 3. guard plate; 31. inner extension part; 32. clamping part; 33. lower extension part; 34. first matching part; 35. recessed part; 4. locking bolt. DETAILED DESCRIPTION

[0025] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", etc. to indicate directions or positional relationships, they only correspond to the drawings of the present application, in order to facilitate the description of the present invention; it should be understood that if there are terms such as "end", "side", "end part", "lateral", "lateral", "transverse", "longitudinal", etc. to indicate directions or positional relationships, they only correspond to the length and width of the corresponding parts, that is, "end part" indicates the head and tail areas in the length direction of the corresponding part, and "side part" indicates the head and tail areas in the width direction of the corresponding part; this is for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific direction.

[0026] Embodiment 1, in combination with the attached Figure 1-4 A steel fiber castable preform with a guard plate comprises a preform body 1 having a flow channel installation groove 11 running longitudinally through the middle of the top surface, a preformed liner 2 having a flow channel and a guard plate 3, wherein the preformed liner 2 is movably plugged into the inner wall of the preform body 1 up and down and fits in the flow channel installation groove 11; the tops of both side walls of the preform body 1 are detachably connected with the guard plates 3, and the guard plates 3 are pressed onto the corresponding top surfaces of the side walls of the preformed liner 2, and the inner side of the guard plate 3 is provided with an inner extension portion 31 extending to the top of the flow channel of the preformed liner 2.

[0027] As required, the material of the prefabricated lining 2 and the guard plate 3 is steel fiber; as required, the material of the prefabricated body 1 can be ordinary casting material or steel fiber.

[0028] As required, the flow channel cross section of the prefabricated liner 2 has a structure with gradually increasing width from bottom to top, such as a V-shape.

[0029] The inner extension portion 31 can block the splashing castable material when the castable material splashes, thereby preventing the castable material from flying out.

[0030] Due to the provision of the prefabricated liner 2, when the prefabricated liner 2 is damaged due to high temperature during long-term use, the prefabricated liner 2 can be replaced separately, thereby reducing the replacement cost.

[0031] As required, the inner extension portion 31 is an arc-shaped structure with the middle portion bulging upward in the transverse direction, that is, the blocked splashing castable material flows back into the flow channel of the prefabricated liner 2 under the guidance of the inner extension portion 31.

[0032] According to the needs, the prefabricated liner 2 and the prefabricated body 1 are movably connected up and down as follows: the inner wall of the prefabricated body 1 is provided with a second insertion groove 15 at the position corresponding to the prefabricated liner 2, and the outer wall of the prefabricated liner 2 is provided with a second matching portion 22 that matches the second insertion groove 15; that is, the second matching portion 22 can be moved downward to be plugged into the second insertion groove 15, and similarly, when the prefabricated liner 2 is disassembled, it can be pulled out from the second insertion groove 15 by moving the second matching portion 22 upward. This arrangement can prevent the prefabricated liner 2 from axially deviating through the second matching portion 22 cooperating with the second insertion groove 15; at the same time, the prefabricated liner 2 is also pressed by the guard plate 3, which can effectively prevent the prefabricated liner 2 from moving upward, thereby achieving the function of fixing the prefabricated liner 2.

[0033] As required, the second insertion groove 15 is rotationally symmetrical along the vertical line of the center of the prefabricated body 1; that is, when installing the prefabricated liner 2, it is not necessary to distinguish the orientations of the two ends of the prefabricated liner 2.

[0034] In a possible example, the tops of both side walls of the preform body 1 are provided with transversely penetrating slots 12, and the guard plate 3 has a snap-fitting portion 32 that can be slidably snap-fitted into the corresponding slots 12; that is, the guard plate 3 can move laterally so that the snap-fitting portion 32 snaps into the corresponding slots 12.

[0035] As required, the slot 12 is in a dovetail shape or a T-shape. Specifically, the engaging portion 32 cannot move upward under the action of the slot 12 .

[0036] As required, the slot 12 is rotationally symmetrical along the vertical line of the center of the preform body 1, that is, when installing the guard plate 3, it can be installed without distinguishing the orientation of the guard plate 3. In other words, the structures of the two guard plates 3 are exactly the same.

[0037] Embodiment 2, combined with the attached Figure 1-4 , a steel fiber castable preform with a guard plate, based on the first embodiment, the bottom of the guard plate 3 is provided with a lower extension 33 that fits the inner wall of the corresponding flow channel installation groove 11, and the bottom surface of the lower extension 33 is pressed against the top surface of the corresponding prefabricated liner 2 side wall;

[0038] As needed, the height of the lower extension portion 33 is set according to the actual flow depth of the castable during pouring. Preferably, when the flow depth of the castable during pouring is 1 / 2 of the depth of the runner mounting groove 11, the side wall height of the prefabricated liner 2 is approximately 2 / 3 of the depth of the runner mounting groove 11, and the height of the lower extension portion 33 is approximately 1 / 3 of the depth of the runner mounting groove 11.

[0039] Such an arrangement can effectively reduce the material consumption of the prefabricated liner 2 according to actual production, thereby effectively reducing the cost of replacing a damaged prefabricated liner 2 .

[0040] As required, the outer side of the top surface of the side wall of the prefabricated liner 2 is provided with a ridge 21 arranged along its length direction, and the outer side of the bottom surface of the lower extension portion 33 is provided with a recessed portion 35 that cooperates with the ridge 21 .

[0041] Embodiment 3, in combination with the attached Figure 1-4 A steel fiber castable preform with a guard plate, based on the second embodiment, a first insertion groove 13 is provided at the position of the inner wall of the preform body 1 corresponding to the lower extension portion 33, and a first matching portion 34 that matches the first insertion groove 13 is provided on the outer wall of the lower extension portion 33; the setting of the first matching portion 34 can not only increase the stability of the connection between the guard plate 3 and the preform body 1, but also play the function of reinforcing ribs between the guard plate 3 body and the lower extension portion 33, thereby improving the strength of the guard plate 3 itself.

[0042] As required, the first insertion groove 13 is rotationally symmetrical along the vertical line of the center of the preform body 1, that is, when installing the guard plate 3, it can be installed without distinguishing the orientation of the guard plate 3. In other words, the structures of the two guard plates 3 are exactly the same.

[0043] Furthermore, a penetrating mounting hole 14 is provided at a position on the side wall of the preform body 1 corresponding to the first insertion groove 13, and a locking bolt 4 is passed through the mounting hole 14, and the locking bolt 4 is screwed to the first matching portion 34; that is, the first matching portion 34 can be locked by the locking bolt 4 to prevent the guard plate 3 from lateral displacement, thereby increasing the stability of the installation of the guard plate 3.

[0044] According to the requirements, the mounting hole 14 is a countersunk hole. Specifically, the locking bolt 4 is made of high temperature resistant material.

[0045] On the whole, the locking bolts 4 are connected to the guard plate 3 which has almost no contact with the castable material to fix the prefabricated lining 2. Compared with the locking bolts 4 directly connected to the prefabricated lining 2, this avoids the situation in which the prefabricated lining 2 is damaged due to large local stress caused by the presence of the locking bolts 4 and long-term contact with high-temperature materials.

[0046] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and it is intended that all changes that fall within the meaning and scope of equivalent elements are included in the present invention.

Claims

1. A steel fiber castable preform with a guard plate, characterized in that: The invention comprises a prefabricated component body (1) having a flow channel installation groove (11) extending longitudinally through the middle of the top surface, a prefabricated liner (2) having a flow channel, and a protective plate (3), wherein the prefabricated liner (2) is movably plugged into the inner side wall of the prefabricated component body (1) up and down and fits the flow channel installation groove (11); the top of both side walls of the prefabricated component body (1) are detachably connected to the protective plate (3), and the protective plate (3) is pressed onto the top surface of the corresponding side wall of the prefabricated liner (2), and the inner side of the protective plate (3) is provided with an inner extension portion (31) extending to the top of the flow channel of the prefabricated liner (2).

2. The steel fiber castable preform with a guard plate according to claim 1, characterized in that: The tops of both side walls of the prefabricated component body (1) are provided with transversely penetrating slots (12), and the guard plate (3) has a snap-fitting portion (32) that can be slidably snap-fitted into the corresponding snap-fitting slots (12).

3. The steel fiber castable preform with a guard plate according to claim 1, characterized in that: The bottom of the guard plate (3) is provided with a lower extension portion (33) which fits the inner side wall of the corresponding flow channel installation groove (11), and the bottom surface of the lower extension portion (33) is pressed against the top surface of the corresponding prefabricated liner (2) side wall.

4. The steel fiber castable preform with a guard plate according to claim 3, characterized in that: A first insertion groove (13) is provided on the inner side wall of the preform body (1) at a position corresponding to the lower extension portion (33), and a first matching portion (34) matching with the first insertion groove (13) is provided on the outer side wall of the lower extension portion (33).

5. The steel fiber castable preform with a guard plate according to claim 4, characterized in that: A through mounting hole (14) is provided at a position of the side wall of the prefabricated component body (1) corresponding to the first insertion slot (13); a locking bolt (4) is passed through the mounting hole (14), and the locking bolt (4) is screwed to the first matching portion (34).

6. The steel fiber castable preform with a guard plate according to claim 3, characterized in that: The outer side portion of the top surface of the side wall of the prefabricated liner (2) is provided with a ridge (21) arranged along its length direction, and the outer side portion of the bottom surface of the lower extension portion (33) is provided with a recessed portion (35) that cooperates with the ridge (21).

7. The steel fiber castable preform with a guard plate according to claim 1, characterized in that: A second insertion groove (15) is provided on the inner side wall of the prefabricated component body (1) at a position corresponding to the prefabricated liner (2), and a second matching portion (22) that matches the second insertion groove (15) is provided on the outer side wall of the prefabricated liner (2).

8. The steel fiber castable preform with a guard plate according to claim 1, characterized in that: The inner extension portion (31) is an arc-shaped structure with a transverse middle portion bulging upward.

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