Energy-saving and environment-friendly annealing furnace for stainless steel pipe

Abstract

A discharging frame of the energy-saving and environment-friendly annealing furnace is composed of a plurality of sections of frame bodies, the top of each frame body is provided with an arc-shaped groove, each frame body is internally provided with a heat exchange channel, the end of each heat exchange channel is provided with a water inlet connector and a water outlet connector, and the two sides of the discharging frame are provided with a water inlet collecting pipe and a water outlet collecting pipe respectively. According to the stainless steel pipe annealing device, the discharging frame capable of exchanging heat is arranged, waste heat of the stainless steel pipe which is just annealed can be recycled, cooling of the stainless steel pipe can be accelerated, the stainless steel pipe can be cooled, the stainless steel pipe can be cooled, the stainless steel pipe can be cooled, and the service life of the stainless steel pipe can be prolonged, so that the service life of the stainless steel pipe can be prolonged, and the service life of the stainless steel pipe can be prolonged. And no extra water resource is consumed.

Description

Technical Field

[0001] The utility model relates to an energy-saving and environment-friendly annealing furnace for stainless steel pipes. Background Art

[0002] After the annealed stainless steel pipes are output from the annealing furnace, they have extremely high temperatures and need to be placed for a long time for natural cooling or accelerated cooling by means such as immersion and spraying; none of the above methods can recover and utilize the waste heat of the stainless steel pipes. Especially when using the methods of immersion and spraying, a large amount of water resources will be consumed. Content of the Utility Model

[0003] The purpose of the utility model is to overcome the deficiencies of the above-mentioned prior art and provide an energy-saving and environment-friendly annealing furnace for stainless steel pipes, which is configured with a heat-exchangeable discharge rack, can recover and utilize the waste heat of the just-annealed stainless steel pipes, can accelerate the cooling of the stainless steel pipes, and does not consume additional water resources.

[0004] The technical solution of the utility model is: an energy-saving and environment-friendly annealing furnace for stainless steel pipes, including an annealing furnace main body, a feeding rack and a discharge rack respectively arranged at both ends of the annealing furnace main body. The discharge rack is composed of multiple sections of rack bodies;

[0005] The top of each rack body has an arc-shaped groove corresponding to the stainless steel pipe. A heat-exchange channel is arranged inside each rack body. The end of the heat-exchange channel is provided with a water inlet interface and a water outlet interface. A water inlet manifold and a water outlet manifold are respectively arranged on both sides of the discharge rack. Each water inlet interface is connected to the water inlet manifold through a connecting pipe, and each water outlet interface is connected to the water outlet manifold through a connecting pipe;

[0006] A first driving wheel set for driving the stainless steel pipe to rotate is further arranged in the middle of each rack body, and a second driving wheel set for driving the stainless steel pipe to move forward is further arranged on the discharge rack between each rack body.

[0007] Preferably, the discharge rack is composed of four sections of rack bodies.

[0008] Furthermore, a plurality of convex ribs are arranged along the length direction of the arc-shaped groove on the rack body.

[0009] Specifically, the cross-section of the convex rib is trapezoidal.

[0010] Furthermore, a partition is further arranged in the middle of the heat-exchange channel, and the partition divides the heat-exchange channel into a "U"-shaped channel.

[0011] Furthermore, the top wall of the heat-exchange channel is an arc-shaped wall corresponding to the arc-shaped groove, and a plurality of convex strips extending along the length direction of the heat-exchange channel are further arranged on the top wall of the heat-exchange channel.

[0012] Further, the first driving wheel set includes a driving wheel and an auxiliary wheel. The middle part of the driving wheel has a concave gear ring, and the gear ring is connected to a driving gear through a transmission gear. The driving gear is fixed on the output shaft of the reduction motor. The driving wheel and the auxiliary wheel are respectively arranged on both sides of the frame body.

[0013] Further, the driving wheel, the transmission gear and the reduction motor are arranged on a first bracket, the auxiliary wheel is arranged on a second bracket, and a protective cover is further arranged on the first bracket.

[0014] Further, the positions of the first bracket and the second bracket are adjustable.

[0015] Further, the second driving wheel set includes a driving wheel body. A connecting shaft is connected to the middle part of the driving wheel body. The connecting shaft is arranged between two frame bodies through two pairs of support frames, and a driving motor is further connected to one end of the connecting shaft.

[0016] The beneficial effects of the utility model are as follows: on the one hand, the discharge rack of the utility model can improve the cooling speed of the stainless steel pipe; on the other hand, the heated water is output from the water outlet interface and the water outlet manifold to a steam boiler or other equipment that requires hot water, making full use of the waste heat of the annealed stainless steel pipe and the water for cooling, which is more energy-saving and environmentally friendly; in addition, the above structure also has the advantages of reasonable and compact layout, and will not occupy too much additional factory space. Description of the Drawings

[0017] Figure 1 is a cross-sectional view of the discharge rack in the utility model;

[0018] Figure 2 is a partial top view of the discharge rack in the utility model.

[0019] In the figure: frame body 1, arc groove 2, heat exchange channel 3, water inlet interface 4, water outlet interface 5, water inlet manifold 6, water outlet manifold 7, first driving wheel set 8, second driving wheel set 9, stainless steel pipe 10, convex rib 11, partition plate 12, convex strip 13, driving wheel 14, auxiliary wheel 15, gear ring 16, transmission gear 17, driving gear 18, protective cover 19. Detailed Embodiments

[0020] The technical solutions of the present utility model will be further specifically described below through embodiments and in conjunction with the drawings.

[0021] Combined with Figure 1 and Figure 2 As shown, the energy-saving and environmentally friendly annealing furnace for stainless steel pipes includes an annealing furnace main body, a feeding rack and a discharge rack respectively arranged at both ends of the annealing furnace main body. The discharge rack is composed of multiple sections of frame bodies 1;

[0022] The top of each said frame body 1 has an arc-shaped groove 2 corresponding to the stainless steel pipe 10. Each said frame body 1 is provided with a heat exchange channel 3. The end of the heat exchange channel 3 is provided with a water inlet interface 4 and a water outlet interface 5. On both sides of the discharge rack, a water inlet manifold 6 and a water outlet manifold 7 are respectively provided. Each said water inlet interface 4 is connected to the water inlet manifold 6 through a connecting pipe, and each said water outlet interface 5 is connected to the water outlet manifold 7 through a connecting pipe;

[0023] In the middle of each said frame body 1, a first driving wheel set 8 for driving the stainless steel pipe 10 to rotate self is further provided. On the discharge rack between each said frame body 1, a second driving wheel set 9 for driving the stainless steel pipe 10 to move forward is further provided.

[0024] The working principle and beneficial effects of the above structure are as follows: The high-temperature stainless steel pipe 10 is output from the annealing furnace main body to the discharge rack. First, it moves forward under the drive of the second driving wheel set 9 until the whole stainless steel pipe 10 is placed on the discharge rack. Then each first driving wheel starts to drive the stainless steel pipe 10 to rotate slowly. During the rotation of the stainless steel pipe 10, it continuously exchanges heat with the water in the heat exchange channels 3 between the frame bodies 1. On the one hand, it can improve the cooling speed of the stainless steel pipe 10. On the other hand, the heated water is output from the water outlet interface 5 and the water outlet manifold 7 to a steam boiler or other equipment that requires hot water, making full use of the waste heat of the annealed stainless steel pipe 10 and the water for cooling, which is more energy-saving and environmentally friendly. In addition, the above structure also has the advantages of reasonable and compact layout, and will not occupy too much additional factory building space.

[0025] Preferably, the discharge rack is composed of four frame bodies 1.

[0026] In another embodiment, in combination with Figure 1 and Figure 2 as shown, a plurality of convex ribs 11 are further provided along the length direction of the arc-shaped groove 2 of the frame body 1 to increase the contact area between the frame body 1 and the stainless steel pipe 10 and reduce the friction between the stainless steel pipe 10 and the frame body 1 when it moves forward or rotates self.

[0027] In another embodiment, as Figure 1 shown, the cross section of the convex rib 11 is trapezoidal.

[0028] In another embodiment, as Figure 1 shown, a partition plate 12 is further provided in the middle of the heat exchange channel 3. The partition plate 12 divides the heat exchange channel 3 into a "U"-shaped channel. The partition plate 12 not only plays a role in separation, but also plays a role in supporting the top of the frame body 1 to ensure the reliability of the structure of the frame body 1.

[0029] In another embodiment, the top wall of the heat exchange channel 3 is an arc-shaped wall corresponding to the arc-shaped groove 2. A plurality of convex strips 13 extending along the length direction of the heat exchange channel 3 are further provided on the top wall of the heat exchange channel 3 to further increase the heat exchange area at the top wall of the heat exchange channel 3.

[0030] In another embodiment, in combination with Figure 1 and Figure 2 as shown, the first driving wheel set 8 includes a driving wheel 14 and an auxiliary wheel 15. The middle part of the driving wheel 14 has a concave gear ring 16. The gear ring 16 is connected to a driving gear 18 through a transmission gear 17. The driving gear 18 is fixed on the output shaft of the reduction motor. The driving wheel 14 and the auxiliary wheel 15 are respectively arranged on both sides of the frame body 1. The driving wheel 14 abuts against one side of the stainless steel pipe 10 to drive its self-rotation, and the auxiliary wheel 15 abuts against the other side of the stainless steel pipe 10 to prevent it from slipping out.

[0031] In another embodiment, in combination with Figure 1 and Figure 2 as shown, the driving wheel 14, the transmission gear 17 and the reduction motor are arranged on a first bracket, the auxiliary wheel 15 is arranged on a second bracket, and a protective cover 19 is further arranged on the first bracket.

[0032] In another embodiment, the positions of the first bracket and the second bracket are adjustable.

[0033] In another embodiment, as Figure 2 shown, the second driving wheel set 9 includes a driving wheel main body. A connecting shaft is connected to the middle part of the driving wheel main body. The connecting shaft is arranged between two frame bodies 1 through two pairs of support frames. One end of the connecting shaft is further connected with a driving motor. The driving wheel main body rotates along the axial direction of the stainless steel pipe 10.

[0034] In another embodiment, as Figure 1 shown, both sides of the upper end of the frame body 1 respectively have inclined planes.

Claims

1. Energy-saving and environmental protection annealing furnace for stainless steel pipes, comprising an annealing furnace main body, and a feeding rack and a discharging rack respectively arranged at both ends of the annealing furnace main body, characterized in that, The discharge rack is composed of multiple sections of rack bodies (1); At the top of each rack body (1), there is an arc-shaped groove (2) corresponding to the stainless steel pipe (10). Inside each rack body (1), there is a heat exchange channel (3). At the end of the heat exchange channel (3), there are a water inlet interface (4) and a water outlet interface (5). On both sides of the discharge rack, there are a water inlet manifold (6) and a water outlet manifold (7) respectively. Each water inlet interface (4) is connected to the water inlet manifold (6) through a connecting pipe, and each water outlet interface (5) is connected to the water outlet manifold (7) through a connecting pipe; In the middle of each rack body (1), there is also a first driving wheel set (8) for driving the stainless steel pipe (10) to rotate. On the discharge rack between each rack body (1), there is also a second driving wheel set (9) for driving the stainless steel pipe (10) to move forward.

2. The energy-saving and environment-friendly annealing furnace for stainless steel pipes according to claim 1, characterized in that, The discharge rack is composed of four sections of rack bodies (1).

3. The energy-saving and environment-friendly annealing furnace for stainless steel pipes as described in claim 2, characterized in that, Along the length direction of the rack body (1), there are also multiple convex ribs (11) on the arc-shaped groove (2).

4. The energy-saving and environment-friendly annealing furnace for stainless steel pipes according to claim 3, characterized in that, The cross-section of the convex rib (11) is trapezoidal.

5. The energy-saving and environment-friendly annealing furnace for stainless steel pipes according to claim 4, characterized in that, In the middle of the heat exchange channel (3), there is also a partition plate (12), and the partition plate (12) divides the heat exchange channel (3) into a "U"-shaped channel.

6. The energy-saving and environment-friendly annealing furnace for stainless steel pipes as described in claim 5, wherein, The top wall of the heat exchange channel (3) is an arc-shaped wall corresponding to the arc-shaped groove (2), and there are also multiple convex strips (13) extending along the length direction of the heat exchange channel (3) on the top wall of the heat exchange channel (3).

7. The energy-saving and environment-friendly annealing furnace for stainless steel pipes as described in claim 6 is characterized in that, The first driving wheel set (8) includes a driving wheel (14) and an auxiliary wheel (15). In the middle of the driving wheel (14), there is an inwardly concave gear ring (16). The gear ring (16) is connected to a driving gear (18) through a transmission gear (17). The driving gear (18) is fixed on the output shaft of a reduction motor. The driving wheel (14) and the auxiliary wheel (15) are respectively arranged on both sides of the rack body (1).

8. The energy-saving and environment-friendly annealing furnace for stainless steel pipes according to claim 7, characterized in that, The driving wheel (14), the transmission gear (17) and the reduction motor are arranged on a first support. The auxiliary wheel (15) is arranged on a second support, and there is also a protective cover (19) on the first support.

9. The energy-saving and environment-friendly annealing furnace for stainless steel pipes as described in claim 8, characterized in that, The positions of the first support and the second support are adjustable.

10. The energy-saving and environmental-friendly annealing furnace for stainless steel pipes as described in claim 9, characterized in that, The second driving wheel set (9) includes a driving wheel main body. A connecting shaft is connected to the middle of the driving wheel main body. The connecting shaft is arranged between two rack bodies (1) through two pairs of support frames, and a driving motor is also connected to one end of the connecting shaft.

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