Heat compensation device for flue of annealing furnace

Abstract

The utility model relates to the technical field of annealing furnace flues, in particular to an annealing furnace flue heat compensation device which comprises a shell, a first inserting rod, a heat exchange structure, a cover plate and a fixing bolt, the left front end and the right rear end of the shell are fixedly connected with a first fixing seat, and the left rear end and the right front end of the shell are fixedly connected with a second fixing seat. The eight heat exchange structures are combined in an X shape to form a heat exchange frame, the left end and the right end of the heat exchange frame are each provided with two first insertion rods, the first insertion rods and the heat exchange structures are all installed in the shell, the first fixing base and the second fixing base, and the top of the shell is fixedly connected with a cover plate through fixing bolts. The heat exchange structure is arranged, heat exchange between tail gas of the annealing furnace and combustion-supporting air can be achieved through the heat exchange structure, on one hand, combustion is facilitated, on the other hand, heat loss is reduced, the gas usage amount is reduced, and the resource utilization rate is increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of annealing furnace flue, and particularly relates to a heat supplement device for an annealing furnace flue. Background Art

[0002] Annealing means slowly heating metal to a certain temperature, maintaining it for a sufficient time, and then cooling it at an appropriate speed. The purpose is to reduce hardness, improve machinability; eliminate residual stress, stabilize dimensions, reduce deformation and crack tendency; refine grains, adjust the structure, and eliminate structural defects. The calorific value and heating effect of gas combustion are closely related to the temperature of combustion-supporting air. Especially for blast furnace gas, the requirement for the temperature of combustion-supporting air is more obvious. For an annealing furnace using coke oven gas, after observation and analysis, after using the combustion-supporting air preheated at a high temperature, the heating capacity and gas consumption have been significantly improved.

[0003] However, the existing annealing furnace does not have a heat exchange structure. With the exhaust of tail gas in the existing annealing furnace, a large amount of heat is discharged, resulting in serious energy waste and low resource utilization efficiency. Preheating the combustion-supporting air requires additional preheating equipment, increasing the cost. Therefore, there is an urgent need for a heat supplement device for an annealing furnace flue to solve the above problems. Content of the Utility Model

[0004] In order to overcome the above technical problems, the purpose of the utility model is to provide a heat supplement device for an annealing furnace flue to solve the problems in the above background art that the existing annealing furnace does not have a heat exchange structure, a large amount of heat is discharged with the exhaust of tail gas in the existing annealing furnace, resulting in serious energy waste and low resource utilization efficiency, and preheating the combustion-supporting air requires additional preheating equipment, increasing the cost.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A heat supplement device for an annealing furnace flue includes a housing, a first inserting rod, a heat exchange structure, a cover plate and fixing bolts. The front end on the left side and the rear end on the right side of the housing are both fixedly connected with a first fixing seat, and the rear end on the left side and the front end on the right side of the housing are fixedly connected with a second fixing seat. Eight heat exchange structures are combined in an X shape to form a heat exchange frame. Two first inserting rods are installed at both the left and right ends of the heat exchange frame. The first inserting rod and the heat exchange structure are both installed in the housing, the first fixing seat and the second fixing seat. The top of the housing is fixedly connected with the cover plate through the fixing bolts.

[0006] Preferably, the first fixing seat and the second fixing seat are both provided with sliding grooves.

[0007] Preferably, an exhaust smoke pipe is fixedly connected to the inner wall of the first fixing seat, and an intake smoke pipe is fixedly connected to the inner wall of the second fixing seat.

[0008] Preferably, a first slider is fixedly connected to both the front and rear sides of the first inserting rod, and the first slider is slidably connected to the sliding groove.

[0009] Preferably, the heat exchange structure includes a second insertion rod and an air pipe. Sliders two are fixedly connected to both the front and rear sides of the second insertion rod, and the sliders two are slidably connected to the sliding grooves.

[0010] Preferably, five air pipe grooves are formed in the second insertion rod, and both the left and right sides of the five air pipes are fixedly connected to the inner walls of the air pipe grooves.

[0011] Preferably, heat dissipation plates are fixedly connected to both the upper and lower sides of the air pipe. Card slots are formed in the heat dissipation plates, and the two heat dissipation plates can be mutually clamped through the card slots.

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

[0013] 1. The annealing furnace flue heat supplementing device is provided with a heat exchange structure. The exhaust smoke pipe is connected to the exhaust pipe of the annealing furnace, and the intake smoke pipe is connected to the intake pipe of the annealing furnace. The tail gas of the annealing furnace enters the first fixing seat through the exhaust smoke pipe, enters the air pipe through the first fixing seat, and is discharged from the exhaust smoke pipe at the other end. The heat of the tail gas heats the air pipe, and is transferred to the air pipe connecting the intake smoke pipe through the heat dissipation plates at the upper and lower ends of the air pipe, thereby heating the temperature of the air in the intake flue of the annealing furnace. Through the heat exchange structure, heat exchange can be realized between the tail gas of the annealing furnace and the combustion-supporting air. On the one hand, it is convenient for combustion. On the other hand, heat loss is reduced, the gas consumption is reduced, and the resource utilization rate is improved.

[0014] 2. The annealing furnace flue heat supplementing device is provided with a housing, a first insertion rod and a second insertion rod. Through the housing, the first insertion rod and the second insertion rod, the rapid installation and disassembly of the air pipe can be realized, which is convenient for replacing and cleaning the air pipe, and prevents the air pipe from being blocked due to the soot of the tail gas, thus affecting the use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the front three-dimensional schematic diagram of the present utility model;

[0016] Figure 2 is the exploded structural schematic diagram of the present utility model;

[0017] Figure 3 is the partial enlarged schematic diagram of the present utility model;

[0018] Figure 4 is the exploded structural schematic diagram of the housing of the present utility model;

[0019] Figure 5 is the exploded structural schematic diagram of the heat exchange structure of the present utility model.

[0020] In the figure: 1. Outer shell; 11. First fixing seat; 12. Exhaust flue; 13. Second fixing seat; 14. Intake flue; 15. Slide groove; 2. First inserting rod; 21. First slider; 3. Heat exchange structure; 31. Second inserting rod; 32. Second slider; 33. Air pipe groove; 34. Air pipe; 35. Heat sink plate; 36. Card slot; 4. Cover plate; 5. Fixing bolt. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1-5 , an embodiment provided by the present invention: an annealing furnace flue heat supplementing device, including an outer shell 1, a first inserting rod 2, a heat exchange structure 3, a cover plate 4 and a fixing bolt 5. The front end on the left side and the rear end on the right side of the outer shell 1 are both fixedly connected with a first fixing seat 11, the rear end on the left side and the front end on the right side of the outer shell 1 are fixedly connected with a second fixing seat 13. Eight heat exchange structures 3 are combined in an X shape to form a heat exchange frame. Two first inserting rods 2 are installed at both the left and right ends of the heat exchange frame. The first inserting rod 2 and the heat exchange structure 3 are both installed in the outer shell 1, the first fixing seat 11 and the second fixing seat 13. The top of the outer shell 1 is fixedly connected with the cover plate 4 through the fixing bolt 5. The cover plate 4 is clamped on the top of the outer shell 1, and the cover plate 4 is fixed on the outer shell 1 through the fixing bolt 5.

[0023] Both the first fixing seat 11 and the second fixing seat 13 are provided with slide grooves 15.

[0024] The inner wall of the first fixing seat 11 is fixedly connected with an exhaust flue 12, and the inner wall of the second fixing seat 13 is fixedly connected with an intake flue 14.

[0025] Both the front and rear sides of the first inserting rod 2 are fixedly connected with a first slider 21. The first slider 21 is slidably connected to the slide groove 15. By adding the first inserting rod 2 in the slide groove 15, the heights of both ends of the heat exchange frame formed by the heat exchange structure 3 are kept the same.

[0026] The heat exchange structure 3 includes a second inserting rod 31 and an air pipe 34. Both the front and rear sides of the second inserting rod 31 are fixedly connected with a second slider 32. The second slider 32 is slidably connected to the slide groove 15. Through the heat exchange structure 3, heat exchange between the tail gas of the annealing furnace and the combustion-supporting air can be realized. On the one hand, it is convenient for combustion. On the other hand, heat loss is reduced, the gas consumption is reduced, and the resource utilization rate is improved.

[0027] Five air pipe grooves 33 are provided on the second inserting rod 31. Both the left and right sides of the five air pipes 34 are fixedly connected to the inner wall of the air pipe groove 33.

[0028] Both the upper and lower sides of the trachea 34 are fixedly connected with heat sinks 35. The heat sinks 35 are provided with clamping grooves 36, which enable the two heat sinks 35 to be clamped with each other. The second inserting rods 31 at the left and right ends of the heat exchange structure 3 are installed in the sliding grooves 15 of the first fixing seat 11 and the second fixing seat 13. The heat exchange structure 3 is placed in an X shape. The upper and lower heat exchange structures 3 are clamped through the heat sinks 35, so that eight heat exchange structures 3 form an X-shaped heat exchange frame.

[0029] Working principle:

[0030] During use, the second inserting rods 31 at the left and right ends of the heat exchange structure 3 are installed in the sliding grooves 15 of the first fixing seat 11 and the second fixing seat 13. The heat exchange structure 3 is placed in an X shape. The upper and lower heat exchange structures 3 are clamped through the heat sinks 35, so that eight heat exchange structures 3 form an X-shaped heat exchange frame. By adding the first inserting rods 2 in the sliding grooves 15, the heights of the left and right ends of the heat exchange frame formed by the heat exchange structure 3 are kept the same. The cover plate 4 is clamped on the top of the outer shell 1 and fixed to the outer shell 1 through the fixing bolts 5. The exhaust smoke pipe 12 is connected to the exhaust pipe of the annealing furnace, and the intake smoke pipe 14 is connected to the intake pipe of the annealing furnace. The tail gas of the annealing furnace enters the first fixing seat 11 through the exhaust smoke pipe 12, enters the trachea 34 through the first fixing seat 11, and is discharged from the exhaust smoke pipe 12 at the other end. The heat of the tail gas heats the trachea 34 and is transferred to the trachea 34 connected to the intake smoke pipe 14 through the heat sinks 35 at the upper and lower ends of the trachea 34, thereby heating the temperature of the air in the intake flue of the annealing furnace. Through the heat exchange structure 3, heat exchange between the tail gas of the annealing furnace and the combustion-supporting air can be realized. On the one hand, it is convenient for combustion. On the other hand, it reduces heat loss, reduces the consumption of gas, improves the resource utilization rate. Through the outer shell 1, the first inserting rods 2 and the second inserting rods 31, the rapid installation and disassembly of the trachea 34 can be realized, which is convenient for replacing and cleaning the trachea 34 and prevents the trachea 34 from being blocked due to the soot of the tail gas, affecting the use.

[0031] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A heat supplement device for an annealing furnace flue, comprising a housing (1), a plug rod (2), a heat exchange structure (3), a cover plate (4) and fixing bolts (5), characterized in that: The left front end and the right rear end of the shell (1) are both fixedly connected to a fixing seat 1 (11), and the left rear end and the right front end of the shell (1) are both fixedly connected to a fixing seat 2 (13). The eight heat exchange structures (3) are combined in an X shape to form a heat exchange frame. Two insertion rods 1 (2) are installed at both left and right ends of the heat exchange frame. The insertion rods 1 (2) and the heat exchange structure (3) are both installed in the shell (1), the fixing seat 1 (11) and the fixing seat 2 (13). The top of the shell (1) is fixedly connected to a cover plate (4) by means of fixing bolts (5).

2. The annealing furnace flue heat supplement device according to claim 1, characterized in that: The fixing seat 1 (11) and the fixing seat 2 (13) are both provided with a slide groove (15).

3. The annealing furnace flue heat supplement device according to claim 1, characterized in that: The inner wall of the first fixing seat (11) is fixedly connected to the exhaust smoke pipe (12), and the inner wall of the second fixing seat (13) is fixedly connected to the intake smoke pipe (14).

4. The annealing furnace flue heat supplement device according to claim 1, characterized in that: The front and rear sides of the insertion rod 1 (2) are fixedly connected to a sliding block 1 (21), and the sliding block 1 (21) is slidably connected to a sliding groove (15).

5. The annealing furnace flue heat supplement device according to claim 1, characterized in that: The heat exchange structure (3) comprises a second insertion rod (31) and an air pipe (34), the front and rear sides of the second insertion rod (31) are fixedly connected to a second sliding block (32), and the second sliding block (32) is slidably connected to a sliding groove (15).

6. The annealing furnace flue heat supplement device according to claim 5, characterized in that: The second insertion rod (31) is provided with five air pipe grooves (33), and the left and right sides of the five air pipes (34) are fixedly connected to the inner wall of the air pipe grooves (33).

7. The annealing furnace flue heat supplement device according to claim 6, characterized in that: The upper and lower sides of the air pipe (34) are fixedly connected to the heat soaking plate (35), and the heat soaking plate (35) is provided with a clamping groove (36), and the clamping groove (36) enables the two heat soaking plates (35) to be clamped to each other.

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