Furnace lining baking device of aluminum melting reverberatory furnace

Abstract

The utility model discloses a furnace lining baking device of a molten aluminum reverberatory furnace, which relates to the technical field of reverberatory furnaces and comprises an air inlet pipe, one end of the air inlet pipe is connected with a steel pipe bent tee joint through an air inlet ball valve, and one side of the steel pipe bent tee joint is connected with a plurality of steel pipe straight sections. The heat of ignited natural gas or liquefied gas is released in the hearth, and the gas flow is controlled through the gas inlet ball valve, so that the hearth can be uniformly and slowly heated at the low-temperature stage from the room temperature to 350 DEG C, and the problems that the temperature rise is unstable and the temperature difference in the furnace is large due to the fact that a reverberatory furnace adopts wood or is provided with a burner to bake the furnace at the low-temperature stage are solved; through the connecting mechanism, the length of the first air spraying pipe and the length of the second air spraying pipe can be adjusted in the left-right and up-down directions according to needs, so that the applicability is wider, and the practicability is higher; through the supporting mechanism, the combined length between the sleeve and the supporting rod can be conveniently and rapidly adjusted, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of reverberatory furnaces, in particular to a furnace lining baking device for an aluminum melting reverberatory furnace. Background Technique

[0002] An aluminum melting reverberatory furnace is a metallurgical furnace that directly heats materials by flames and is used for smelting metals. It mainly consists of three main parts: a combustion chamber, a smelting chamber, and an exhaust flue (chimney). The entire furnace chamber is a rectangular smelting chamber lined with refractory materials, with simple structure, low investment, and can use various fuels such as coal, gas, heavy oil, etc. The aluminum melting reverberatory furnace is an important smelting equipment for non-ferrous metals such as copper, nickel, and tin, and is widely used in the treatment of ores and concentrates. Aluminosilicate-bonded castables are widely used in the refractory furnace lining structure of aluminum melting reverberatory furnaces due to their good workability and excellent service performance. Since the castable needs to be mixed with water and stirred during construction, it is a necessary link before the furnace is put into production. The main purpose is to fully discharge the moisture in the furnace lining, make the furnace lining heat up evenly and slowly, and avoid cracking caused by rapid cooling and heating.

[0003] There are various forms of baking the furnace lining of the reverberatory furnace. Wood, natural gas, electricity, heavy oil, etc. are all commonly used baking furnace heat sources. During the baking process, the output power of the heat source should be controlled to ensure a stable and orderly furnace lining heating process. If the furnace lining heating is unstable during baking, it is easy to cause unsmooth dehydration of the furnace lining and uneven baking. In severe cases, too fast heating will cause the furnace lining to burst.

[0004] Currently, when baking the furnace lining of most aluminum melting reverberatory furnaces, wood or a self-provided burner is usually used for heating and temperature rise in the low-temperature stage of the reverberatory furnace baking. This method is prone to problems such as unstable heating and large temperature difference in the furnace during baking, and will also cause unsmooth dehydration of the furnace lining and uneven baking, with relatively poor practicability. Summary of the Invention

[0005] The purpose of the utility model is to provide a furnace lining baking device for an aluminum melting reverberatory furnace to solve the problems raised in the prior art.

[0006] To achieve the above object, the utility model provides the following technical solution: A furnace lining baking device for an aluminum melting reverberatory furnace, including an air inlet pipe, one end of the air inlet pipe is connected to a steel pipe elbow tee through an air inlet ball valve, several steel pipe straight sections are connected to one side of the steel pipe elbow tee, one end of the steel pipe straight sections located on both sides is connected to a first jet pipe through a first elbow, one end of the steel pipe straight section in the middle position is connected to two second jet pipes through a steel pipe straight tee, the first jet pipe and the second jet pipe both include a second elbow, a straight section pipe, and a connection mechanism, and the first jet pipe further includes a connecting pipe, an air outlet is provided on one side of the straight section pipe, and an ignition needle is provided on one side of the air outlet, the second elbow is arranged at the corner position between two connected straight section pipes, several support mechanisms are provided at the bottom of the first jet pipe and the second jet pipe, and the straight section pipe includes a first straight pipe and a second straight pipe.

[0007] Further, the connection mechanism includes a telescopic pipe, and both ends of the telescopic pipe are respectively inserted into the first straight pipe and the second straight pipe. A torsion disc is sleeved on the outer wall of the middle position of the telescopic pipe. Sealing heads are sleeved on both sides of the torsion disc and the outer side of the telescopic pipe. Thread grooves adapted to the sealing heads are respectively opened at one ends of the opposite inner sides of the first straight pipe and the second straight pipe. Connection heads are fixedly installed at one ends of the first straight pipe and the second straight pipe close to the sealing heads. Stop rings are fixedly installed on the outer sides of the two ends of the telescopic pipe in the first straight pipe and the second straight pipe. Pistons are connected between the two ends of the telescopic pipe and the two stop rings. Through grooves are symmetrically opened on the side wall of the piston. A support plate is fixedly installed on one side of the through groove. A guide rod penetrating the piston is provided on one side of the support plate. One end of the guide rod is connected to a sealing plate in the through groove. A spring is sleeved between the support plate and the sealing plate on the outer side of the guide rod. A connection sleeve adapted to the connection head is provided on the outer side of the sealing plate on the side of the piston close to the telescopic pipe. The setting of the connection mechanism can conveniently adjust the distance in the up and down and left and right directions of the first jet pipe and the second jet pipe according to needs, making it more convenient to use and more practical.

[0008] Further, the support mechanism includes a sleeve, a support rod is movably installed inside the sleeve, and the lower end of the support rod extends outside the sleeve. A rotating rod is rotatably installed on one side of the lower end of the sleeve. A limiting rod is rotatably sleeved on the outer side of the rotating rod. Several card slots adapted to the limiting rod are opened on one side of the support rod. A torsion spring is sleeved on the outer side of the rotating rod above the limiting rod, and both ends of the torsion spring are fixedly connected to the sleeve and the limiting rod respectively. The setting of the support mechanism can conveniently adjust its height according to needs, so as to better support the first jet pipe and the second jet pipe and keep them stable.

[0009] Further, a sealing ring is provided between the sealing head and the first straight pipe. A sealing ring is sleeved on the outer side of the piston. A sealing groove is provided on the side of the sealing plate close to the piston. Both ends of the spring are fixedly connected to the piston and the sealing plate respectively, so as to improve its sealing performance.

[0010] Further, an internal thread is provided on the inner wall surface of the connecting sleeve, and an external thread adapted to the connecting sleeve is provided on the outer wall of the connecting head. The sealing head is a hollow convex structure, so that the connecting sleeve and the connecting head can be connected. At the same time, the connecting head can be used to push the sealing plate to fit with the piston to achieve sealing.

[0011] Further, a support frame is clamped on the outside of one end of the limiting rod at the bottom of the sleeve. The support frame is composed of a U-shaped structure and a rectangular block structure. A number of the card slots are arranged in a linear equidistant array, so as to support and limit the limiting rod and improve the support effect on the support rod.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. The present utility model can evenly discharge combustion-supporting substances such as natural gas, release the heat of ignited natural gas or liquefied gas in the furnace chamber, and control the gas flow through the inlet ball valve, so that the furnace chamber can be heated evenly and slowly in the low-temperature stage of room temperature to 350 °C, solving the problems of unstable temperature rise and large temperature difference in the furnace during the low-temperature stage of the reverberatory furnace baking using wood or the self-provided burner; and the shape and position of the steel pipe can be designed according to the furnace chamber structure. The device can be evenly arranged in the furnace chamber to reduce the temperature difference in the furnace, so that the furnace linings of each part can be heated evenly, and it is suitable for baking of different furnace types. After the baking is completed, the device can be directly withdrawn from the furnace chamber, and the operation is simple and there is no combustion residue pollution in the furnace chamber; through the connecting mechanism, the lengths of the first spray pipe and the second spray pipe can be adjusted in the left-right, up-down directions as needed, making its applicability wider and practicality stronger;

[0014] 2. Through the support mechanism of the present utility model, the combined length between the sleeve and the support rod can be adjusted conveniently and quickly, and it is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the whole of the present utility model;

[0016] Figure 2 is a partial side view structural diagram of the present utility model;

[0017] Figure 3 is a partial three-dimensional structural diagram of the present utility model;

[0018] Figure 4 is a structural diagram between the first straight pipe, the second straight pipe and the telescopic pipe of the present utility model;

[0019] Figure 5 is the present utility model Figure 4 an enlarged structural diagram of A in;

[0020] Figure 6 is a structural diagram between the piston and the sealing plate of the present utility model;

[0021] Figure 7 This is a schematic structural diagram between the sleeve and the support rod of the present utility model.

[0022] Reference numerals in the figure: 1, intake pipe; 2, intake ball valve; 3, steel pipe elbow tee; 4, straight section of steel pipe; 5, elbow one; 6, steel pipe straight tee; 7, jet pipe one; 8, jet pipe two; 9, connecting pipe; 10, elbow two; 11, connecting mechanism; 12, straight pipe one; 13, straight pipe two; 14, sleeve; 15, telescopic pipe; 16, sealing head; 17, connecting head; 18, retaining ring; 19, piston; 20, support plate; 21, guide rod; 22, sealing plate; 23, spring; 24, connecting sleeve; 25, support rod; 26, rotating rod; 27, limiting rod; 28, torsion spring; 29, support frame. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Embodiment: As Figure 1 - Figure 7As shown in the figure, the utility model provides a furnace lining baking device for an aluminum melting reverberatory furnace, which includes an air inlet pipe 1. One end of the air inlet pipe 1 is connected to a steel pipe elbow tee 3 through an air inlet ball valve 2. One side of the steel pipe elbow tee 3 is connected with a plurality of steel pipe straight sections 4. One end of the steel pipe straight sections 4 located on both sides is connected to a first jet pipe 7 through an elbow 5. One end of the steel pipe straight section 4 in the middle position is connected to two second jet pipes 8 through a steel pipe straight tee 6. The first jet pipe 7 and the second jet pipe 8 both include an elbow 10, a straight pipe section, and a connecting mechanism 11. The first jet pipe 7 also includes a connecting pipe 9. An air outlet is provided on one side of the straight pipe section, and an ignition needle is provided on one side of the air outlet. The elbow 10 is arranged at the corner position between two connected straight pipe sections. A plurality of support mechanisms are provided at the bottom of the first jet pipe 7 and the second jet pipe 8. The straight pipe section includes a first straight pipe 12 and a second straight pipe 13. In this example, the connecting mechanism 11 includes a telescopic pipe 15. The two ends of the telescopic pipe 15 are respectively inserted into the first straight pipe 12 and the second straight pipe 13. A torsion disc is sleeved on the outer wall of the middle position of the telescopic pipe 15. Sealing heads 16 are sleeved on both sides of the torsion disc and the outer side of the telescopic pipe 15. Thread grooves adapted to the sealing heads 16 are respectively opened at one end of the relative inner sides of the first straight pipe 12 and the second straight pipe 13. Connecting heads 17 are fixedly installed at one end of the first straight pipe 12 and the second straight pipe 13 close to the sealing heads 16. Retaining rings 18 are fixedly installed on the outer sides of the two ends of the telescopic pipe 15 in the first straight pipe 12 and the second straight pipe 13. Pistons 19 are connected between the two ends of the telescopic pipe 15 and the two retaining rings 18. Through grooves are symmetrically opened on the side wall of the piston 19. A support plate 20 is fixedly installed on one side of the through groove. A guide rod 21 passing through the piston 19 is provided on one side of the support plate 20. One end of the guide rod 21 is connected to a sealing plate 22 in the through groove. A spring 23 is sleeved on the outer side of the guide rod 21 between the support plate 20 and the sealing plate 22. A connecting sleeve 24 adapted to the connecting head 17 is provided on the outer side of the sealing plate 22 on the side of the piston 19 close to the telescopic pipe 15. The setting of the connecting mechanism can conveniently adjust the distance in the up and down and left and right directions of the first jet pipe 7 and the second jet pipe 8 according to needs, making it more convenient to use and more practical. In this example, the support mechanism includes a sleeve 14. A support rod 25 is movably installed inside the sleeve 14, and the lower end of the support rod 25 extends outside the sleeve 14. A rotating rod 26 is rotatably installed on one side of the lower end of the sleeve 14. A limiting rod 27 is rotatably sleeved on the outer side of the rotating rod 26. A plurality of card slots adapted to the limiting rod 27 are opened on one side of the support rod 25. A torsion spring 28 is sleeved on the outer side of the rotating rod 26 above the limiting rod 27, and the two ends of the torsion spring 28 are respectively fixedly connected to the sleeve 14 and the limiting rod 27. The setting of the support mechanism can conveniently adjust its height according to needs, so as to better support the first jet pipe 7 and the second jet pipe 8 and keep them stable.

[0025] In this example, a sealing ring is provided between the sealing head 16 and the first straight pipe 12, a sealing ring is sleeved outside the piston 19, a sealing groove is provided on one side of the sealing plate 22 close to the piston 19, and both ends of the spring 23 are fixedly connected to the piston 19 and the sealing plate 22 respectively to improve its sealing performance. In this example, the inner wall surface of the connecting sleeve 24 is provided with internal threads, the outer wall of the connecting head 17 is provided with internal threads adapted to the connecting sleeve 24, and the sealing head 16 is a hollow convex structure so that the connecting sleeve 24 can be connected to the connecting head 17. At the same time, the connecting head 17 can be used to push the sealing plate 22 to fit with the piston 19 to achieve sealing. In this example, a support frame 29 is clamped outside one end of the limiting rod 27 at the bottom of the sleeve 14, and the support frame 29 is composed of a U-shaped structure and a rectangular block structure, and a number of card slots are arranged in a linear equidistant array to support and limit the limiting rod 27 and improve the support effect on the support rod 25.

[0026] The working principle of the utility model is as follows: when in use, liquefied gas or natural gas flows in through the air inlet pipe 1, and the gas flow is controlled by the air inlet ball valve 2. The gas fills the device and is ignited at the air outlet. The released heat reaches the furnace bottom, furnace wall and furnace top after diffusion and radiation, so as to realize the baking of the reverberatory furnace lining; when the baking is completed, the air inlet ball valve is closed and the flame is extinguished, and the device is pulled out of the furnace; when it is necessary to adjust the length of the air injection pipe 1 7 and the air injection pipe 2 8 in the left and right and up and down directions, the sealing head 16 can be driven to rotate by rotating the torsion disk, so that the two sealing heads 16 are respectively The straight tube 12 and the straight tube 2 13 are separated, and then the straight tube 12 and the straight tube 2 13 can be pulled to the relative outside until the piston 19 moves to the side of the connecting head 17. During the movement of the piston 19, the guide rod 21 drives the sealing plate 22 to return to the through groove under the elastic force of the spring 23, thereby closing the piston 19. After the piston 19 moves to the side of the connecting head 17, the torsion plate is rotated to drive the telescopic tube 15 to rotate, so that the telescopic tube 15 drives the piston 19 to rotate, and then drives the connecting sleeve 24 to rotate, so that the connecting sleeve 24 is threadedly connected to the connecting head 17, so that One end of the connector 17 abuts against the sealing plate 22, so that the sealing plate 22 and the piston 19 fit tightly together, so that the connection between the telescopic tube 15 and the straight tube 12 and the straight tube 2 13 is well sealed. The device has a wider range of application and is more convenient to use. It can make the temperature distribution in the furnace uniform, so that the furnace can be heated evenly and slowly in the low temperature stage of room temperature to 350°C, solving the problem of unstable heating and large temperature difference in the furnace when using wood or self-contained burners in the low temperature stage of the reverberatory furnace. When it is necessary to adjust the combined length between the sleeve 14 and the support rod 25, the limiter can be pulled to adjust the combined length between the sleeve 14 and the support rod 25. One end of the rod 27 is moved out of the support frame 29, and the support frame 29 is twisted with the torsion spring 28. After the support frame 29 is moved out of the slot, the support rod 25 can be adjusted to move up and down, and the combined length of the sleeve 14 and the support rod 25 can be changed. After the connector 17 reaches a suitable length, the force applied to the limit rod 27 is released, so that the limit rod 27 is reset and rotated under the torsion of the torsion spring 28, and the limit rod 27 is snapped into the corresponding slot on the support rod 25, thereby realizing the limit fixation of the support rod 25 and completing the adjustment of its height, so as to support the device, which is convenient to use and more practical.

[0027] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A furnace lining baking device for an aluminum melting reverberatory furnace, comprising an air inlet pipe (1), characterized in that: One end of the air inlet pipe (1) is connected to a steel pipe bent tee (3) through an air inlet ball valve (2), one side of the steel pipe bent tee (3) is connected to a plurality of steel pipe straight sections (4), one end of the steel pipe straight sections (4) located on both sides is connected to an injection pipe one (7) through an elbow one (5), one end of the steel pipe straight section (4) in the middle is connected to two injection pipes two (8) through a steel pipe straight tee (6), the injection pipes one (7) and two (8) both comprise an elbow two (10), a straight section pipe, and a connecting mechanism (11), and the injection pipe one (7) also comprises a connecting pipe (9), one side of the straight section pipe is provided with an air outlet, and one side of the air outlet is provided with an ignition needle, the elbow two (10) is arranged at a corner between two connected straight section pipes, the bottoms of the injection pipe one (7) and the injection pipe two (8) are both provided with a plurality of supporting mechanisms, and the straight section pipes comprise a straight pipe one (12) and a straight pipe two (13).

2. The furnace lining baking device of an aluminum melting reverberatory furnace according to claim 1, characterized in that: The connecting mechanism (11) comprises a telescopic tube (15), and the two ends of the telescopic tube (15) are respectively inserted into the straight tube 1 (12) and the straight tube 2 (13). A torsion plate is sleeved on the outer wall at the middle position of the telescopic tube (15). Sealing heads (16) are sleeved on both sides of the torsion plate and the outer side of the telescopic tube (15). The straight tube 1 (12) and the straight tube 2 (13) are respectively provided with thread grooves adapted to the sealing heads (16) at the ends of the inner sides thereof. Connecting heads (17) are fixedly installed at the ends of the straight tube 1 (12) and the straight tube 2 (13) near the sealing heads (16). The straight tube 1 (12) and the straight tube 2 (13) are fixedly provided at the ends of the telescopic tube (15) at the outer sides thereof. A retaining ring (18) is installed, and pistons (19) are connected to both ends of the telescopic tube (15) between the two retaining rings (18). Through grooves are symmetrically opened on the side wall of the piston (19), and a support plate (20) is fixedly installed on one side of the through groove. A guide rod (21) penetrating the piston (19) is provided on one side of the support plate (20), and one end of the guide rod (21) is connected to a sealing plate (22) in the through groove. A spring (23) is sleeved on the outer side of the guide rod (21) between the support plate (20) and the sealing plate (22). A connecting sleeve (24) adapted to the connecting head (17) is provided on the outer side of the sealing plate (22) on the side of the piston (19) close to the telescopic tube (15).

3. The furnace lining baking device of an aluminum melting reverberatory furnace according to claim 1, characterized in that: The support mechanism comprises a sleeve (14), a support rod (25) is movably mounted inside the sleeve (14), and the lower end of the support rod (25) extends outside the sleeve (14), a rotating rod (26) is rotatably mounted on one side of the lower end of the sleeve (14), a limit rod (27) is rotatably sleeved on the outer side of the rotating rod (26), a plurality of slots adapted to the limit rod (27) are provided on one side of the support rod (25), a torsion spring (28) is sleeved on the outer side of the rotating rod (26) above the limit rod (27), and two ends of the torsion spring (28) are respectively fixedly connected to the sleeve (14) and the limit rod (27).

4. The lining baking device of an aluminum melting reverberatory furnace according to claim 2, characterized in that: A sealing ring is provided between the sealing head (16) and the straight pipe (12), a sealing ring is sleeved on the outer side of the piston (19), a sealing groove is provided on the side of the sealing plate (22) close to the piston (19), and two ends of the spring (23) are fixedly connected to the piston (19) and the sealing plate (22) respectively.

5. The furnace lining baking device of an aluminum melting reverberatory furnace according to claim 2, characterized in that: The inner wall surface of the connecting sleeve (24) is provided with an internal thread, the outer wall of the connecting head (17) is provided with an internal thread matching the connecting sleeve (24), and the sealing head (16) is a hollow convex structure.

6. The furnace lining baking device of an aluminum melting reverberatory furnace according to claim 3, characterized in that: A support frame (29) is provided at the bottom of the sleeve (14) on the outside of one end of the limiting rod (27), and the support frame (29) is composed of a U-shaped structure and a rectangular block structure, and a plurality of the slots are distributed in a linear equidistant array.

Images