Furnace wall preheating device of copper alloy smelting furnace

Abstract

The utility model discloses a furnace wall preheating device of a copper alloy smelting furnace. The furnace wall preheating device comprises a hanging ring arranged on the top face of a sealing cover plate, a heat insulation pipe A is vertically arranged in the center of the bottom face of the sealing cover plate, a telescopic rod A is arranged in the heat insulation pipe A in a sliding mode, and a first telescopic cylinder capable of driving the telescopic rod A to slide in the vertical direction is arranged in the heat insulation pipe A; a plurality of heat insulation pipes B are arranged in the circumferential direction of the outer walls of the heat insulation pipes A and the telescopic rods A at equal intervals, telescopic rods B are slidably arranged in the heat insulation pipes B, and second telescopic cylinders capable of driving the telescopic rods B to horizontally slide are arranged in the heat insulation pipes B; the tail ends of the telescopic rods B on the heat insulation pipe A are fixedly connected with upper heating plates, and the tail ends of the telescopic rods B on the telescopic rods A are fixedly connected with lower heating plates; the preheating device has the advantages of being high in heating efficiency, capable of preheating smelting furnaces with different inner cavity sizes, reducing the cold start time of the smelting furnace, reducing moisture absorption of the furnace wall during long-time placement, simple in structure, low in cost and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to copper alloy smelting furnace preheating technical field, concretely to a copper alloy smelting furnace wall preheating device. BACKGROUND

[0002] Copper alloy melting furnace is a new type of high-efficiency energy-saving smelting furnace, with a melting point of up to 1400 DEG C, used for melting and processing of aluminum ingots and copper rice (silver copper alloy); the copper alloy melting furnace absorbs moisture and air during long-term storage and non-use, reduces the service life of the copper alloy melting furnace wall material, and needs to be preheated before cold start; the preheating structure of the high-pressure gas quenching furnace disclosed in patent publication No. CN221566228U specifically discloses that the inside of the preheating furnace body is provided with a preheating assembly for preheating the gas quenching furnace, the preheating assembly includes a bottom plate fixedly connected to the bottom surface of the furnace body, a heat conduction plate fixedly connected to the inner wall of the bottom plate, and a heating plate fixedly connected to the inner wall of the bottom plate, achieving the purpose of rapid and uniform preheating, but there are problems such as low heating efficiency, complex structure, high cost, and limited application range. SUMMARY

[0003] The technical problem to be solved by the utility model is to overcome the defects of the prior art, provide a copper alloy smelting furnace wall preheating device, preheat the smelting furnace wall, have high heating efficiency, can preheat smelting furnaces with different inner cavity sizes, reduce the cold start time of the smelting furnace, reduce moisture absorption and air absorption during long-term storage of the furnace wall, increase the service life of the furnace wall material, have a simple structure, low cost, wide application range, and can effectively solve the problems in the background art.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a copper alloy smelting furnace wall preheating device, including a sealing cover plate, the top surface of the sealing cover plate is provided with an eye ring, the center of the bottom surface of the sealing cover plate is vertically provided with a heat insulation pipe A, the heat insulation pipe A is slidably provided with a telescopic rod A, and the heat insulation pipe A is provided with a telescopic cylinder one capable of driving the telescopic rod A to slide in the vertical direction; a plurality of heat insulation pipes B are equally spaced in the circumferential direction of the outer wall of the heat insulation pipe A and the telescopic rod A, and the heat insulation pipes B are horizontally arranged; the heat insulation pipes B are slidably provided with telescopic rods B, and the heat insulation pipes B are provided with telescopic cylinders two capable of driving the telescopic rods B to slide horizontally; the telescopic rods B at the ends of the telescopic rods B on the heat insulation pipe A are fixedly connected with upper heating plates, and the telescopic rods B at the ends of the telescopic rods B on the telescopic rods A are fixedly connected with lower heating plates.

[0005] Further, the telescopic rods A and the telescopic rods B are tubular structures, and the telescopic connection ends of the telescopic rods A and the telescopic rods B are closed structures.

[0006] Further, the telescopic cylinder one and the telescopic cylinder two are high-temperature-resistant oil cylinders, the fixed end of the telescopic cylinder one is fixedly connected with the bottom surface of the sealing cover plate, and the fixed end of the telescopic cylinder two is fixedly connected with the outer wall of the heat insulation pipe A.

[0007] Further, the upper heating plate and the lower heating plate are circular arc plate structures.

[0008] Further, the heat insulation pipe A is provided with a heat insulation ring at the pipe opening at the bottom, and the heat insulation pipe B is also provided with a heat insulation ring at the pipe opening at the outside.

[0009] Further, the bottom surface of the sealing cover plate is provided with a containing groove, and the containing groove is provided with a sealing gasket.

[0010] Further, the heat insulation pipe A is provided with an upper temperature measuring device, and the telescopic rod A is provided with a lower temperature measuring device.

[0011] Compared with the prior art, the copper alloy furnace wall preheating device has the advantages that the telescopic cylinder one is used to adjust the descending height of the lower heating plate, the telescopic cylinder two is used to make the upper heating plate and the lower heating plate close to the furnace wall of the furnace, the upper heating plate and the lower heating plate which are arranged at equal intervals along the circumferential direction are used to preheat the furnace wall, the heating efficiency is high, the preheating of the smelting furnace with different inner cavity sizes can be realized, the cold start time of the furnace is reduced, the preheating and heat preservation of the furnace wall which has not been used for a long time can be realized, the moisture absorption and air absorption of the furnace wall during long-time placement are reduced, and the service life of the furnace wall material is prolonged, the preheating device has simple structure, low cost and wide application range. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a structural schematic view of the utility model;

[0013] Figure 2 It is a local enlarged view of the heat insulation pipe of the utility model;

[0014] Figure 3 It is a bottom view of the upper heating plate and the lower heating plate of the utility model;

[0015] Figure 4 It is a structural schematic view of the utility model in use.

[0016] In the drawing: 1, sealing cover plate; 101, lifting ring; 102, sealing gasket; 2, heat insulation pipe A; 3, telescopic rod A; 4, telescopic cylinder one; 5, heat insulation pipe B; 6, telescopic rod B; 7, telescopic cylinder two; 8, upper heating plate; 9, lower heating plate; 10, upper temperature measuring device; 11, lower temperature measuring device; 12, heat insulation ring. DETAILED DESCRIPTION

[0017] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application. Embodiments

[0018] Please refer to Figures 1-4 The present application provides a technical solution: a copper alloy furnace wall preheating device, comprising a sealing cover plate 1, the top surface of the sealing cover plate 1 is provided with a lifting ring 101, the bottom surface of the sealing cover plate 1 is provided with a containing groove, and the containing groove is provided with a sealing gasket 102; the center of the bottom surface of the sealing cover plate 1 is vertically provided with a heat insulation pipe A2, the heat insulation pipe A2 is slidably provided with an extension rod A3, and the heat insulation pipe A2 is provided with an extension cylinder one 4 which can drive the extension rod A3 to slide in the vertical direction, and the fixed end of the extension cylinder one 4 is fixedly connected with the bottom surface of the sealing cover plate 1; the heat insulation pipe A2 and the extension rod A3 are both provided with a plurality of heat insulation pipes B5 which are equidistantly arranged in the circumferential direction of the outer wall of the heat insulation pipe A2 and the extension rod A3, the heat insulation pipes B5 are all horizontally arranged, the heat insulation pipes B5 are all slidably provided with extension rods B6, and the heat insulation pipes B5 are all provided with extension cylinders two 7 which can drive the extension rods B6 to slide horizontally, and the fixed end of the extension cylinder two 7 is fixedly connected with the outer wall of the heat insulation pipe A2; the extension rods B6 at the ends of the heat insulation pipe A2 are all fixedly connected with upper heating plates 8, and the extension rods B6 at the ends of the extension rod A3 are all fixedly connected with lower heating plates 9; the heat insulation pipe A2 is provided with an upper temperature measuring device 10, and the extension rod A3 is provided with a lower temperature measuring device 11; the extension cylinder one 4 and the extension cylinder two 7 are both high-temperature-resistant oil cylinders.

[0019] Working principle:

[0020] The preheating device is hoisted into the smelting furnace by an external hoist, the piston rod of the first telescopic cylinder 4 pushes the telescopic rod A3 to move downwards along the heat insulation pipe A2 according to the internal height of the smelting furnace, the telescopic rod A3 drives the lower heating plate 9 to move downwards, so that the lower heating plate 9 moves to a suitable heating position at the bottom of the smelting furnace, the piston rod of the second telescopic cylinder 7 pushes the telescopic rod B6 to move horizontally according to the internal diameter of the smelting furnace, the telescopic rod B6 drives the upper heating plate 8 and the lower heating plate 9 to be close to the inner wall of the smelting furnace, the upper heating plate 8 and the lower heating plate 9 preheat the smelting furnace wall by heating, the temperature in the smelting furnace is detected by the upper temperature measuring device 10 and the lower temperature measuring device 11, and the smelting furnace is heat-insulated by the sealing gasket 102 arranged on the sealing cover plate 1; the smelting furnace with different internal cavity sizes can be preheated, the cold start time of the smelting furnace is reduced; the smelting furnace wall that has not been used for a long time can also be preheated and heat-insulated, moisture absorption and air absorption of the smelting furnace wall during long-time placement are reduced, and the service life of the smelting furnace wall material is prolonged; after the smelting furnace wall is preheated, the second telescopic cylinder 7 and the first telescopic cylinder 4 are retracted, so that the upper heating plate 8 and the lower heating plate 9 return to the original position, and the heating device is hoisted out of the smelting furnace by the external hoist.

[0021] Further, the telescopic rod A3 and the telescopic rod B6 are both tubular structures, and the telescopic connection ends of the telescopic rod A3 and the telescopic rod B6 are both closed structures, so that the first telescopic cylinder 4 and the second telescopic cylinder 7 are heat-insulated; the heat insulation ring 12 is arranged at the pipe opening at the bottom of the heat insulation pipe A2, and the heat insulation ring 12 is also arranged at the pipe opening outside the heat insulation pipe B5, so that the first telescopic cylinder 4 and the second telescopic cylinder 7 are further heat-insulated.

[0022] Further, the upper heating plate 8 and the lower heating plate 9 are both circular arc plate structures, so that the smelting furnace wall is heated more uniformly, and the heating efficiency is improved.

[0023] The copper alloy smelting furnace wall preheating device disclosed in the embodiment adjusts the descending height of the lower heating plate 9 by the first telescopic cylinder 4, drives the upper heating plate 8 and the lower heating plate 9 to be close to the smelting furnace wall by the second telescopic cylinder 7, preheats the smelting furnace wall by the upper heating plate 8 and the lower heating plate 8 arranged at equal intervals in the circumferential direction, the heating efficiency is high, the smelting furnace with different internal cavity sizes can be preheated, and the cold start time of the smelting furnace is reduced; the smelting furnace wall that has not been used for a long time can also be preheated and heat-insulated, moisture absorption and air absorption of the smelting furnace wall during long-time placement are reduced, and the service life of the smelting furnace wall material is prolonged; the preheating device has simple structure, low cost and wide application range.

[0024] Although the embodiments of the utility model 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 these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A copper alloy furnace wall preheating device comprising a sealing cover plate, the top surface of the sealing cover plate is provided with a lifting ring, characterized in that: The center of the bottom surface of the sealing cover plate is vertically provided with a heat insulation pipe A, the heat insulation pipe A is slidably provided with an expansion rod A, and the heat insulation pipe A is provided with an expansion cylinder I capable of driving the expansion rod A to slide in the vertical direction; the heat insulation pipe A and the outer wall of the expansion rod A are both provided with a plurality of heat insulation pipes B at equal intervals in the circumferential direction, the heat insulation pipes B are all horizontally arranged, the heat insulation pipes B are all slidably provided with expansion rods B, and the heat insulation pipes B are all provided with expansion cylinders II capable of driving the expansion rods B to slide horizontally; the distal ends of the expansion rods B on the heat insulation pipe A are all fixedly connected with upper heating plates, and the distal ends of the expansion rods B on the expansion rod A are all fixedly connected with lower heating plates.

2. A copper alloy furnace wall preheating device according to claim 1, characterized in that: The expansion rod A and the expansion rod B are both tubular structures, and the expansion connection ends of the expansion rod A and the expansion rod B are both closed structures.

3. A copper alloy furnace wall preheating device according to claim 1, characterized in that: The expansion cylinder I and the expansion cylinder II are both high-temperature-resistant oil cylinders, the fixed end of the expansion cylinder I is fixedly connected with the bottom surface of the sealing cover plate, and the fixed end of the expansion cylinder II is fixedly connected with the outer wall of the heat insulation pipe A.

4. A copper alloy furnace wall preheating device according to claim 1, characterized in that: The upper heating plate and the lower heating plate are both circular arc plate structures.

5. A copper alloy furnace wall preheating device according to claim 1, characterized in that: The bottom of the heat insulation pipe A is provided with a heat insulation ring at the pipe opening, and the heat insulation pipe B is also provided with a heat insulation ring at the pipe opening.

6. A copper alloy furnace wall preheating device according to claim 1, characterized in that: The bottom surface of the sealing cover plate is provided with a containing groove, and the containing groove is provided with a sealing gasket.

7. A copper alloy furnace wall preheating device according to claim 1, characterized in that: The heat insulation pipe A is provided with an upper temperature measuring device, and the expansion rod A is provided with a lower temperature measuring device.

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