Wiredrawing gas heating equipment with waste heat recovery structure

Abstract

The utility model discloses gas heating equipment with a waste heat recovery structure for wire drawing, which relates to the technical field of metal wire drawing equipment and comprises a heating cylinder, a gas inlet end fixedly mounted at the bottom of the heating cylinder, an end cover fixedly mounted at the bottom of the gas inlet end, and an igniter fixedly mounted at the bottom of the end cover. The igniter is electrically connected with an external controller through a connecting line, and two first fixing pipes are further fixedly installed on the outer side of the end cover. By means of the arrangement of the heating cylinder, the combustion ring, the connecting base and the air pipe, metal wires in the heating cylinder can be rapidly heated, in addition, the preheating cylinder is fixedly installed on one side of the heating cylinder, redundant heat in the heating cylinder can directly enter the preheating cylinder, rising hot air flow is guided into the preheating cylinder in an accelerated mode in cooperation with the arrangement of the air guide pipe, and the heating effect is improved. And the metal wires can be rapidly heated to a proper temperature through preheating, so that preparation is made for the subsequent wire drawing process, and energy and cost are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of metal wire drawing equipment, in particular to a gas heating equipment for wire drawing with a waste heat recovery structure. Background Art

[0002] In the process of metal drawing, the large diameter metal wire will be gradually drawn into the smaller diameter metal wire, and in some metal drawing, the material needs to be heated to enhance its toughness and ductility. Generally, flame heating, induction heating and electric furnace heating are used.

[0003] In the process of heating the metal wire drawing by gas combustion, not all the heat generated by the gas combustion directly acts on the metal wire, that is, part of the heat will be dissipated into the surrounding environment. At the same time, when heating the metal wire by gas combustion, it is necessary to ensure air circulation in the combustion chamber. Therefore, part of the heat in the combustion chamber will be directly discharged through the exhaust equipment, thereby causing heat waste. At the same time, the metal wire that subsequently enters the combustion chamber needs to be heated from room temperature to a specified temperature, which will increase energy consumption and increase the overall production cost. Utility Model Content

[0004] The purpose of the utility model is to provide a gas heating device for wire drawing with a waste heat recovery structure, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A gas heating device for wire drawing with a waste heat recovery structure comprises a heating cylinder, an air inlet end is fixedly installed at the bottom of the heating cylinder, an end cover is fixedly installed at the bottom of the air inlet end, an igniter is fixedly installed at the bottom of the end cover, the igniter is electrically connected to an external controller through a connecting line, two first fixed tubes are also fixedly installed on the outside of the end cover, a damper is fixedly connected between the two first fixed tubes, a connecting valve is also fixedly installed on one side of one of the first fixed tubes, and the connecting valve is connected to an external gas supply pipeline, an outlet pipe is fixedly installed on one side of the heating cylinder, a plurality of combustion rings are fixedly installed in the heating cylinder, a preheating cylinder is fixedly installed on the other side of the heating cylinder, and an air guide pipe is fixedly connected between the heating cylinder and the preheating cylinder.

[0007] Preferably, a second fixed pipe is fixedly installed on the top of the air inlet end, a connecting seat is fixedly installed on the top of the second fixed pipe, and a first exhaust pipe is fixedly installed on the top of the heating tube.

[0008] Preferably, two air pipes are fixedly installed on the outside of the connecting seat, and the inner cavities of the two air pipes are connected to the inner cavity of the connecting seat. A connecting seat is installed on the top of the second fixed pipe, and two air pipes are arranged on the outside of the connecting seat, so that external gas can be introduced into multiple combustion rings.

[0009] Preferably, the multiple combustion rings are respectively fixedly mounted on the corresponding air pipes, and the inner cavity of the combustion ring is connected to the inner cavity of the air pipe. A plurality of air holes are opened on the inner side of the combustion ring. By arranging a plurality of combustion rings in the heating tube, the gas can be burned in the heating tube and the metal wire can be heated.

[0010] Preferably, a second exhaust pipe and an air inlet pipe are fixedly installed on the top of the preheating cylinder, a sealing block is provided on the side of the preheating cylinder away from the heating cylinder, and a sealing block is also provided on the side of the outlet pipe away from the heating cylinder. A connecting flange is fixedly installed on one side of the sealing block, flame-retardant cotton is inserted and installed at the center position of the sealing block, and the sealing block is inserted and installed on one side of the outlet pipe or one side of the preheating cylinder. With the help of the setting of the sealing block, one side of the outlet pipe and one side of the preheating cylinder can be sealed, and the setting of the flame-retardant cotton makes it easy for the metal wire to pass through the sealing block into the preheating cylinder and the heating cylinder, and seal the inner cavity of the heating cylinder and the preheating cylinder.

[0011] Preferably, one end of the air guide pipe is fixedly mounted on the first exhaust pipe, and the other end of the air guide pipe is fixedly mounted on the air intake pipe. With the arrangement of the air guide pipe, the rising hot air can be introduced into the preheating cylinder in cooperation with a channel on one side of the heating cylinder, thereby preheating the metal wire entering the preheating cylinder.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model discloses a gas heating device for wire drawing with a waste heat recovery structure. With the help of the arrangement of the heating tube, the combustion ring, the connecting seat and the air pipe, the metal wire in the heating tube can be quickly heated. In addition, a preheating tube is fixedly installed on one side of the heating tube, so that the excess heat in the heating tube can directly enter the preheating tube, and with the arrangement of the air guide tube, the rising hot air flow is accelerated to be introduced into the preheating tube, thereby introducing the excess heat into the preheating tube to preheat the metal wire. The preheating can quickly heat the metal wire to an appropriate temperature, prepare for the subsequent wire drawing process, and save energy and cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 This is a cross-sectional view of the main structure of the utility model;

[0016] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0017] Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0018] In the figure: 1. heating cylinder; 2. air inlet end; 3. end cover; 4. igniter; 5. first fixed tube; 6. air damper; 7. connecting valve; 8. outlet pipe; 9. combustion ring; 10. preheating cylinder; 11. air guide pipe; 12. second fixed tube; 13. connecting seat; 14. air pipe; 15. first exhaust pipe; 16. second exhaust pipe; 17. air inlet pipe; 18. connecting flange; 19. sealing block; 20. flame retardant cotton. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] like Figure 1-Figure 4 As shown, the utility model provides a gas heating device for wire drawing with a waste heat recovery structure, including a heating tube 1, an air inlet end 2 is fixedly installed at the bottom of the heating tube 1, an end cover 3 is fixedly installed at the bottom of the air inlet end 2, an igniter 4 is fixedly installed at the bottom of the end cover 3, the igniter 4 is electrically connected to an external controller through a connecting line, two first fixed tubes 5 are also fixedly installed on the outside of the end cover 3, a damper 6 is fixedly connected between the two first fixed tubes 5, a connecting valve 7 is also fixedly installed on one side of one of the first fixed tubes 5, and the connecting valve 7 is connected to an external gas supply pipeline, an outlet pipe 8 is fixedly installed on one side of the heating tube 1, a plurality of combustion rings 9 are fixedly installed inside the heating tube 1, a preheating tube 10 is fixedly installed on the other side of the heating tube 1, and an air guide pipe 11 is fixedly connected between the heating tube 1 and the preheating tube 10.

[0021] like Figure 1-Figure 3 As shown, a second fixed pipe 12 is fixedly installed on the top of the air inlet end 2, a connecting seat 13 is fixedly installed on the top of the second fixed pipe 12, a first exhaust pipe 15 is fixedly installed on the top of the heating tube 1, two air pipes 14 are fixedly installed on the outside of the connecting seat 13, and the inner cavities of the two air pipes 14 are connected with the inner cavity of the connecting seat 13, a connecting seat 13 is installed on the top of the second fixed pipe 12, and two air pipes 14 are arranged on the outside of the connecting seat 13, external gas can be introduced into a plurality of combustion rings 9, a plurality of combustion rings 9 are respectively fixedly installed on the corresponding air pipes 14, and the inner cavities of the combustion rings 9 are connected with the inner cavities of the air pipes 14, a plurality of air holes are opened on the inner side of the combustion rings 9, and by arranging a plurality of combustion rings 9 in the heating tube 1, the gas can be burned in the heating tube 1 and the metal wire can be heated;

[0022] like Figure 2-Figure 4As shown, the top of the preheating tube 10 is respectively fixedly installed with a second exhaust pipe 16 and an intake pipe 17, a sealing block 19 is provided on the side of the preheating tube 10 away from the heating tube 1, and a sealing block 19 is also provided on the side of the outlet pipe 8 away from the heating tube 1, a connecting flange 18 is fixedly installed on one side of the sealing block 19, a flame retardant cotton 20 is inserted and installed at the center position of the sealing block 19, and the sealing block 19 is inserted and installed on one side of the outlet pipe 8 or one side of the preheating tube 10. With the arrangement of the sealing block 19, one side of the outlet pipe 8 and the preheating tube 1 can be 0 is sealed on one side, and the flame retardant cotton 20 is provided to facilitate the metal wire to enter the preheating tube 10 and the heating tube 1 through the sealing block 19, and to seal the heating tube 1 and the inner cavity of the preheating tube 10. One end of the air guide pipe 11 is fixedly mounted on the first exhaust pipe 15, and the other end of the air guide pipe 11 is fixedly mounted on the intake pipe 17. With the provision of the air guide pipe 11, the rising hot air can be introduced into the preheating tube 10 in cooperation with the channel on one side of the heating tube 1, so that the metal wire entering the preheating tube 10 can be preheated.

[0023] It should be noted that the utility model is a gas heating device for wire drawing with a waste heat recovery structure. When the metal wire is heated, the metal wire can be passed through the preheating tube 10, the heating tube 1 and the outlet pipe 8 from one side of the preheating tube 10 in sequence, and the outlet pipe 8 and the ports on one side of the preheating tube 10 are sealed with the help of a sealing block 19 and a flame retardant cotton 20. Then, when the metal wire is pulled toward the wire drawing machine through the traction device, the gas of the external gas supply pipeline can be fed into the two gas pipes 14 through the connecting valve 7 through the first fixed pipe 5, the damper 6, the end cover 3, and the second fixed pipe 12 in sequence, and then diverted to multiple combustion chambers through the two gas pipes 14. Ring 9, and then, the gas ejected from the combustion ring 9 is ignited by the igniter 4, so that the metal wire can be heated. At the same time, part of the heat in the heating tube 1 enters into the preheating tube 10 through the channel on one side of the heating tube 1, and the temperature in the preheating tube 10 can be increased. At the same time, since the hot air flow is accelerated into the preheating tube 10 through the first exhaust pipe 15, the air guide pipe 11, and the air intake pipe 17, the double-path extraction of excess heat in the heating tube 1 is realized, so that the metal wire in the preheating tube 10 is preheated, the moving speed of the metal wire in the heating tube 1 can be reduced, the heating efficiency and production efficiency can be improved, and the energy consumption and production cost can be reduced.

[0024] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A gas heating device for wire drawing with a waste heat recovery structure, characterized in that: The invention comprises a heating cylinder (1), wherein an air inlet end (2) is fixedly mounted on the bottom of the heating cylinder (1), an end cover (3) is fixedly mounted on the bottom of the air inlet end (2), an igniter (4) is fixedly mounted on the bottom of the end cover (3), the igniter (4) is electrically connected to an external controller via a connecting line, two first fixed tubes (5) are fixedly mounted on the outside of the end cover (3), a damper (6) is fixedly connected between the two first fixed tubes (5), a connecting valve (7) is fixedly mounted on one side of one of the first fixed tubes (5), the connecting valve (7) is connected to an external gas supply pipeline, an outlet pipe (8) is fixedly mounted on one side of the heating cylinder (1), a plurality of combustion rings (9) are fixedly mounted inside the heating cylinder (1), a preheating cylinder (10) is fixedly mounted on the other side of the heating cylinder (1), and an air guide pipe (11) is fixedly connected between the heating cylinder (1) and the preheating cylinder (10).

2. The gas heating equipment for wire drawing with waste heat recovery structure according to claim 1, characterized in that: A second fixed pipe (12) is fixedly mounted on the top of the air inlet end (2), a connecting seat (13) is fixedly mounted on the top of the second fixed pipe (12), and a first exhaust pipe (15) is fixedly mounted on the top of the heating tube (1).

3. The gas heating equipment for wire drawing with waste heat recovery structure according to claim 2, characterized in that: Two air pipes (14) are fixedly mounted on the outside of the connecting seat (13), and the inner cavities of the two air pipes (14) are in communication with the inner cavity of the connecting seat (13).

4. The gas heating equipment for wire drawing with waste heat recovery structure according to claim 3 is characterized in that: The plurality of combustion rings (9) are respectively fixedly mounted on corresponding air pipes (14), and the inner cavity of the combustion ring (9) is communicated with the inner cavity of the air pipe (14), and a plurality of air holes are provided on the inner side of the combustion ring (9).

5. The gas heating equipment for wire drawing with waste heat recovery structure according to claim 4 is characterized in that: A second exhaust pipe (16) and an air intake pipe (17) are fixedly mounted on the top of the preheating cylinder (10), respectively; a sealing block (19) is provided on the side of the preheating cylinder (10) away from the heating cylinder (1); a sealing block (19) is also provided on the side of the outlet pipe (8) away from the heating cylinder (1); a connecting flange (18) is fixedly mounted on one side of the sealing block (19); a flame retardant cotton (20) is inserted and mounted at the center position of the sealing block (19); and the sealing block (19) is inserted and mounted on one side of the outlet pipe (8) or one side of the preheating cylinder (10).

6. The gas heating equipment for wire drawing with waste heat recovery structure according to claim 5, characterized in that: One end of the air guide pipe (11) is fixedly mounted on the first exhaust pipe (15), and the other end of the air guide pipe (11) is fixedly mounted on the intake pipe (17).

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