Non-stick aluminum prefabricated part lining for smelting furnace

Abstract

The utility model discloses a non-stick aluminum prefabricated part lining for a smelting furnace. The non-stick aluminum prefabricated part lining comprises a molten aluminum outlet pipe, a locking bolt and a prefabricated lining body. A positioning shoulder is arranged at the end of the molten aluminum outlet pipe, and the prefabricated lining is fixed in the molten aluminum outlet pipe through a locking bolt and correspondingly abuts against the positioning shoulder. The molten aluminum outlet pipe is provided with a threaded through hole, the prefabricated lining is provided with a groove corresponding to the threaded through hole, the groove is provided with an inclined face, the end of the locking bolt is a conical head, the locking bolt is matched with the threaded through hole, and the conical head at the end of the locking bolt is matched with the inclined face and pushes the prefabricated lining. The prefabricated lining can be fixed in the molten aluminum outlet pipe through the locking bolt and correspondingly abuts against the positioning shoulder, meanwhile, the graphite gasket is further arranged, the situation that molten aluminum leaks from a gap between the prefabricated lining and the positioning shoulder is reduced, and the prefabricated lining can be detached and replaced in the later period; the problems that time and labor are wasted and the cost is high when the whole molten aluminum outlet pipe is replaced traditionally are solved, use is convenient, and the effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of refractory prefabricated parts, in particular to a non-stick aluminum prefabricated part lining for a smelting furnace. Background Art

[0002] The smelting furnace uses a 200-2500Hz medium frequency power supply for induction heating. According to its characteristics, it can also be called a medium frequency electric furnace. It is mainly used for the smelting and heating of precious metals such as gold, platinum, silver, copper, iron, stainless steel, aluminum alloy, aluminum and other metals. In the construction process of the aluminum 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 construction. The liquid outlet of the existing smelting furnace usually adopts a whole outlet prefabricated part. The outlet castable prefabricated part will come into contact with the high-temperature material. During long-term use, the outlet castable prefabricated part will undergo certain wear and tear and structural changes under the action of high temperature, resulting in partial fracture of the castable prefabricated part, and then it cannot be used normally. Therefore, it needs to be replaced as a whole regularly. However, the overall replacement requires the removal of part of the furnace body refractory bricks on the outlet side and then rebuilding. The replacement is cumbersome and troublesome, which delays production time and needs to be improved. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a non-stick aluminum prefabricated lining for a smelting furnace, which is easy to disassemble and replace, and solves the problem of time-consuming, labor-intensive and costly traditional replacement of the entire aluminum liquid outlet pipe. It is easy to use and has good effects, and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a non-stick aluminum prefabricated lining for a smelting furnace, comprising an aluminum liquid outlet pipe, a locking bolt and a prefabricated lining; the prefabricated lining has a flow channel corresponding to the aluminum liquid outlet pipe, and a positioning shoulder is provided at the end of the aluminum liquid outlet pipe. The prefabricated lining is fixed in the aluminum liquid outlet pipe by a locking bolt and contacts the positioning shoulder; the aluminum liquid outlet pipe is provided with a threaded through hole, and the prefabricated lining is provided with a groove corresponding to the threaded through hole, the groove has an inclined surface, and the end of the locking bolt is a conical head, which is screwed into the locking bolt, and the locking bolt cooperates with the threaded through hole, and the conical head at its end cooperates with the inclined surface and pushes the prefabricated lining.

[0005] Preferably, a graphite gasket is provided between the end of the prefabricated liner and the positioning shoulder.

[0006] Preferably, the prefabricated lining has an outer conical surface, and the aluminum liquid outlet pipe has an inner conical surface adapted to the outer conical surface.

[0007] Preferably, there are two locking bolts, two threaded through holes and two grooves respectively.

[0008] Preferably, one end of the prefabricated liner extends out of the aluminum liquid outlet pipe, and an anti-fouling block is provided at the edge of the end of the prefabricated liner, and a slot adapted to the anti-fouling block is provided at the end of the aluminum liquid outlet pipe.

[0009] Preferably, the prefabricated lining is made of non-stick aluminum refractory castable.

[0010] Compared with the prior art, the beneficial effects of the present invention are: the prefabricated lining can be fixed in the aluminum liquid outlet pipe by means of locking bolts, and it will interfere with the corresponding positioning shoulder. At the same time, a graphite gasket is arranged between the prefabricated lining and the positioning shoulder to reduce the leakage of aluminum liquid from the gap between the prefabricated lining and the positioning shoulder. The prefabricated lining can be disassembled and replaced later, which solves the problem of time-consuming, labor-intensive and costly replacement of the entire aluminum liquid outlet pipe in the traditional way. It is easy to use and has good effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of the utility model;

[0012] Figure 2 This is a cross-sectional view of the utility model;

[0013] Figure 3 It is an enlarged schematic diagram of the local structure of the utility model.

[0014] In the figure: 1 aluminum liquid outlet pipe, 1.1 positioning shoulder, 1.2 slot, 2 locking bolt, 2.1 tapered head, 3 prefabricated liner, 3.1 groove, 3.11 inclined surface, 3.2 anti-fouling block, 4 graphite gasket. DETAILED DESCRIPTION

[0015] The present invention will 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", and "right" indicating directions or positional relationships, they are only corresponding to the drawings of the present application for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction.

[0016] See also Figure 1-3 The utility model provides a technical solution: a non-stick aluminum prefabricated lining for a smelting furnace, comprising an aluminum liquid outlet pipe 1, a locking bolt 2, and a prefabricated lining 3; the prefabricated lining 3 has a flow channel corresponding to the aluminum liquid outlet pipe 1, and a positioning shoulder 1.1 is provided at the end of the aluminum liquid outlet pipe 1. The prefabricated lining 3 is fixed in the aluminum liquid outlet pipe 1 by the locking bolt 2 and contacts the positioning shoulder 1.1;

[0017] The aluminum liquid outlet pipe 1 is provided with a threaded through hole, and the prefabricated liner 3 is provided with a groove 3.1 corresponding to the threaded through hole. The groove 3.1 has an inclined surface 3.11. The end of the locking bolt 2 is a conical head 2.1, which is screwed into the locking bolt 2. The locking bolt 2 cooperates with the threaded through hole, and the conical head 2.1 at its end cooperates with the inclined surface 3.11 to push the prefabricated liner 3.

[0018] It can be understood that the prefabricated lining 3 is placed in the molten aluminum outlet pipe 1, and then the groove 3.1 is aligned with the threaded through hole, and the locking bolt 2 is screwed into the threaded through hole. As the locking bolt 2 is screwed in, the conical head 2.1 at the end of the locking bolt 2 cooperates with the inclined surface 3.11. When the locking bolt 2 is screwed in again, the conical head 2.1 pushes the prefabricated lining 3, so that the prefabricated lining 3 and the positioning shoulder 1.1 correspond to each other, reducing the gap here and preventing the aluminum liquid from leaking from this gap. If the prefabricated lining 3 is damaged after a period of use, the locking bolt 2 is unscrewed, the prefabricated lining 3 is taken out and replaced. Compared with the traditional replacement of the entire molten aluminum outlet pipe 1, the replacement workload is reduced and the production cost can also be reduced.

[0019] Furthermore, a graphite gasket 4 is provided between the end of the prefabricated liner 3 and the positioning shoulder 1.1. The graphite gasket 4 has a certain degree of deformation ability and can withstand high temperatures. When the prefabricated liner 3 pushes, the graphite gasket 4 is squeezed, which can ensure a more secure seal at this location.

[0020] Furthermore, the prefabricated lining 3 has an outer conical surface, and the aluminum liquid outlet pipe 1 has an inner conical surface adapted to the outer conical surface, which facilitates insertion and fit; the locking bolt 2, the threaded through hole and the groove 3.1 are each provided with two;

[0021] Furthermore, one end of the prefabricated liner 3 extends out of the molten aluminum outlet pipe 1, and an anti-fouling block 3.2 is provided on the edge of this end of the prefabricated liner 3. The end of the molten aluminum outlet pipe 1 is provided with a slot 1.2 adapted to the anti-fouling block 3.2. The anti-fouling design is such that when the anti-fouling block 3.2 is engaged with the slot 1.2, the groove 3.1 on the prefabricated liner 3 corresponds to the threaded through hole on the molten aluminum outlet pipe 1.

[0022] Furthermore, the precast lining 3 is made of non-stick aluminum refractory castable.

[0023] 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 characteristics 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 content of the present invention.

Claims

1. A non-stick aluminum preform lining for a smelting furnace, characterized by: The invention comprises an aluminum liquid outlet pipe (1), a locking bolt (2) and a prefabricated lining (3); the prefabricated lining (3) has a flow channel corresponding to the aluminum liquid outlet pipe (1); the end of the aluminum liquid outlet pipe (1) is provided with a positioning shoulder (1.1); the prefabricated lining (3) is fixed in the aluminum liquid outlet pipe (1) by the locking bolt (2) and contacts the positioning shoulder (1.1); the aluminum liquid outlet pipe (1) is provided with a threaded through hole; the prefabricated lining (3) is provided with a groove (3.1) corresponding to the threaded through hole; the groove (3.1) has an inclined surface (3.11); the end of the locking bolt (2) is a conical head (2.1) which is screwed into the locking bolt (2); the locking bolt (2) cooperates with the threaded through hole, and the conical head (2.1) at its end cooperates with the inclined surface (3.11) and pushes the prefabricated lining (3).

2. The non-stick aluminum preform lining for a smelting furnace according to claim 1, characterized in that: A graphite gasket (4) is also provided between the end of the prefabricated liner (3) and the positioning shoulder (1.1).

3. The non-stick aluminum preform lining for a smelting furnace according to claim 1, characterized in that: The prefabricated lining (3) has an outer conical surface, and the aluminum liquid outlet pipe (1) has an inner conical surface adapted to the outer conical surface.

4. The non-stick aluminum preform lining for a smelting furnace according to claim 1, characterized in that: The locking bolt (2), the threaded through hole, and the groove (3.1) are each provided with two corresponding ones.

5. The non-stick aluminum preform lining for a smelting furnace according to claim 1, characterized in that: One end of the prefabricated lining (3) extends out of the aluminum liquid outlet pipe (1), and an anti-fouling block (3.2) is provided at the edge of the end of the prefabricated lining (3), and a slot (1.2) adapted to the anti-fouling block (3.2) is provided at the end of the aluminum liquid outlet pipe (1).

6. The non-stick aluminum preform lining for a smelting furnace according to claim 1, characterized in that: The prefabricated lining (3) is made of non-stick aluminum refractory castable.

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