Waste heat recovery device for quenching tank station of roller furnace

Abstract

The utility model discloses a waste heat recovery device for a roller furnace quenching tank station, which comprises a bottom plate, the top of the bottom plate is fixedly connected with a quenching tank, two opposite sides in the quenching tank are rotatably connected with two lower rods and two upper rods, the outer side walls of the two lower rods and the two upper rods are fixedly connected with turning plate groups, and the turning plate groups are fixedly connected with the bottom plate. And the same ends of the two lower rods penetrate through the side wall of the quenching tank and are fixedly connected with lower gears, the same ends of the two upper rods penetrate through the side wall of the quenching tank and are fixedly connected with upper gears, and the lower gears are engaged with the upper gears. By means of the technical scheme, the problems that in the prior art, in the process of recycling media in a quenching tank, heat of media close to a workpiece is high, heat of media far away from the workpiece is low, and therefore heat in the media is not evenly distributed, and recycling of the heat of the media is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat recovery, in particular to a waste heat recovery device for a quenching tank station of a roller furnace. Background Art

[0002] The quenching tank station of the roller furnace plays a vital role in the heat treatment process. When the workpiece is heated to the required temperature in the heating furnace, the medium in the quenching tank can quickly and evenly absorb the heat of the workpiece, so that the workpiece can complete the quenching process at a reasonable cooling rate, thereby achieving the expected physical and chemical properties. By recycling the medium in the quenching tank and using it for preheating, heating and other process steps, the energy utilization efficiency can be improved and the production cost can be reduced.

[0003] At present, in the process of recovering the medium in the quenching tank, the medium heat near the workpiece is higher, and the medium heat far from the workpiece is lower, which leads to uneven heat distribution in the medium, thereby affecting the recovery and utilization of the medium heat. Therefore, the utility model proposes a waste heat recovery device for the quenching tank station of the roller furnace. Utility Model Content

[0004] The utility model aims to provide a waste heat recovery device for a quenching tank station of a roller furnace to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a waste heat recovery device for a quenching tank station of a roller furnace, comprising a base plate, a quenching tank being fixedly connected to the top of the base plate, two lower rods and two upper rods being rotatably connected on opposite sides inside the quenching tank, a flap group being fixedly connected to the outer walls of the two lower rods and the two upper rods, the same ends of the two lower rods passing through the side walls of the quenching tank and being fixedly connected to lower gears, the same ends of the two upper rods passing through the side walls of the quenching tank and being fixedly connected to upper gears, the lower gears being meshed with the upper gears, and both sides of the quenching tank being fixedly connected with a water inlet pipe and a water outlet pipe.

[0006] Preferably, two groups of vertical rods are fixedly connected to the inner bottom wall of the quenching tank, and the lower rod and the upper rod are located on both sides of the two groups of vertical rods.

[0007] Preferably, the flap group includes three centrally symmetrical flaps, and the flaps are all fixedly connected to the outer side walls of the lower rod and the upper rod.

[0008] Preferably, two transmission motors are fixedly connected to a side of the quenching tank away from the lower gear, and the output ends of the transmission motors both penetrate the side wall of the quenching tank and are fixedly connected to the lower rod.

[0009] Preferably, a water inlet and a water outlet are provided on both sides of the quenching tank, the water inlet is located at the bottom of the quenching tank, the water outlet is located at the top of the quenching tank, the water inlet pipe is fixedly connected to the quenching tank through the water inlet, and the water outlet pipe is fixedly connected to the quenching tank through the water outlet.

[0010] Preferably, a cooling water tank and a hot water storage tank are fixedly connected to both sides of the top of the base plate, the cooling water tank is fixedly connected to the water inlet pipe, and the hot water storage tank is fixedly connected to the water outlet pipe.

[0011] Preferably, two groups of through holes are provided on both sides of the quenching tank, and the lower rod and the upper rod are rotatably connected to the quenching tank through the through holes.

[0012] The utility model provides a waste heat recovery device for a roller furnace quenching tank station, which has the following beneficial effects:

[0013] 1. The utility model drives the lower rod to rotate by controlling the transmission motor, and the lower rod drives the two flap groups below to rotate, and at the same time the lower rod drives the lower gear to rotate, the lower gear drives the upper gear to rotate in the opposite direction, the upper gear drives the upper rod to rotate in the opposite direction, the upper rod drives the two flap groups above to rotate in the opposite direction, the upper flap drives the upper medium to flow toward the middle along the rotation direction of the upper flap, and the lower flap drives the lower medium to flow toward the middle along the rotation direction of the lower flap, thereby enhancing the convection and turbulence of the medium in the quenching tank, so that the heat is transferred more evenly in the medium, and then the heat distribution in the medium is uniform, avoiding affecting the recovery and utilization of the medium heat.

[0014] 2. The utility model arranges vertical rods to place the workpiece between two groups of vertical rods for quenching treatment, thereby preventing the lower rod and the upper rod from driving the outer flap group to collide with the workpiece, thereby protecting the workpiece and ensuring the quality of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the water inlet pipe in the utility model;

[0017] Figure 3 It is a structural schematic diagram of the flap group in the utility model;

[0018] Figure 4 It is a structural schematic diagram of the vertical rod in the utility model;

[0019] Figure 5 It is a structural schematic diagram of the through hole in the utility model.

[0020] In the figure: 1, bottom plate; 11, quenching tank; 2, lower rod; 21, upper rod; 22, flap group; 23, lower gear; 24, upper gear; 25, water inlet pipe; 26, water outlet pipe; 3, vertical rod; 4, transmission motor; 5, water inlet; 51, water outlet; 6, cooling water tank; 61, hot water storage tank; 7, through hole. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] Example 1: Please refer to Figure 1-5 The utility model provides a technical solution: a waste heat recovery device for a quenching tank station of a roller furnace, comprising a bottom plate 1, a quenching tank 11 is fixedly connected to the top of the bottom plate 1, two lower rods 2 and two upper rods 21 are rotatably connected on opposite sides of the quenching tank 11, and a flap group 22 is fixedly connected to the outer walls of the two lower rods 2 and the two upper rods 21, the same ends of the two lower rods 2 penetrate the side walls of the quenching tank 11 and are fixedly connected to a lower gear 23, the same ends of the two upper rods 21 penetrate the side walls of the quenching tank 11 and are fixedly connected to an upper gear 24, the lower gears 23 are meshed with the upper gears 24, and both sides of the quenching tank 11 are fixedly connected with a water inlet pipe 25 and a water outlet pipe 26.

[0023] The flap group 22 includes three flaps that are centrally symmetrical, and the flaps are fixedly connected to the outer walls of the lower rod 2 and the upper rod 21; two transmission motors 4 are fixedly connected to the side of the quenching tank 11 away from the lower gear 23, and the output ends of the transmission motors 4 pass through the side walls of the quenching tank 11 and are fixedly connected to the lower rod 2; water inlets 5 and water outlets 51 are provided on both sides of the quenching tank 11, the water inlet 5 is located at the bottom of the quenching tank 11, and the water outlet 51 is located at the top of the quenching tank 11, the water inlet pipe 25 is fixedly connected to the quenching tank 11 through the water inlet 5, and the water outlet pipe 26 is connected to the quenching tank 11 through the water outlet 51. Fixedly connected; a cooling water tank 6 and a hot water storage tank 61 are fixedly connected to both sides of the top of the bottom plate 1, the cooling water tank 6 is fixedly connected to the water inlet pipe 25, and the hot water storage tank 61 is fixedly connected to the water outlet pipe 26. By arranging the medium to enter the quenching tank 11 from the bottom and be discharged from the top of the quenching tank 11, the medium can flow along the surface of the quenching tank 11, so that the heat is more evenly distributed on the surface of the quenching tank 11, which helps to improve the heat transfer efficiency; two groups of through holes 7 are opened on both sides of the quenching tank 11, and the lower rod 2 and the upper rod 21 are rotatably connected to the quenching tank 11 through the through holes 7.

[0024] The specific solution is as follows: by starting the transmission motor 4, the transmission motor 4 drives the two lower rods 2 to rotate inside the through hole 7 through the output end, and the two lower rods 2 drive the two flap groups 22 located below to rotate, and at the same time, the two lower rods 2 drive the two lower gears 23 to rotate, and under the meshing action of the lower gears 23 and the upper gear 24, the two lower gears 23 drive the two upper gears 24 to rotate in the opposite direction, and the two upper gears 24 drive the two upper rods 21 to rotate in the opposite direction inside the through hole 7, and the two upper rods 21 drive the two flap groups 22 located above to rotate in the opposite direction Under the action of the reverse rotation of the upper flap group 22 and the rotation of the lower flap group 22, the upper flap drives the medium in the upper part of the quenching tank 11 to flow toward the middle of the quenching tank 11 along the rotation direction of the upper flap, and the lower flap drives the medium in the lower part of the quenching tank 11 to flow toward the middle of the quenching tank 11 along the rotation direction of the lower flap, thereby enhancing the convection and turbulence of the medium in the quenching tank 11, making the heat more evenly transferred in the medium, thereby making the heat distribution in the medium even, avoiding affecting the recovery and utilization of the medium heat.

[0025] Embodiment 2: Figure 4 As shown, a waste heat recovery device for a roller furnace quenching tank station disclosed in Example 2 of the utility model has a structure that is basically the same as that in Example 1, with the difference being that two groups of vertical rods 3 are fixedly connected to the inner bottom wall of the quenching tank 11, and the lower rod 2 and the upper rod 21 are located on both sides of the two groups of vertical rods 3.

[0026] The specific solution is: by setting vertical rods 3, the workpiece is placed between two groups of vertical rods 3 for quenching treatment, preventing the lower rod 2 and the upper rod 21 from driving the outer flap group 22 to collide with the workpiece, thereby protecting the workpiece and ensuring the quality of the workpiece.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waste heat recovery device for a roller furnace quenching tank station, comprising a bottom plate (1), characterized in that: A quenching tank (11) is fixedly connected to the top of the bottom plate (1), and two lower rods (2) and two upper rods (21) are rotatably connected on opposite sides of the quenching tank (11). The outer walls of the two lower rods (2) and the two upper rods (21) are fixedly connected with a flap group (22). The same ends of the two lower rods (2) penetrate the side walls of the quenching tank (11) and are fixedly connected with a lower gear (23). The same ends of the two upper rods (21) penetrate the side walls of the quenching tank (11) and are fixedly connected with an upper gear (24). The lower gears (23) are meshed with the upper gears (24). Both sides of the quenching tank (11) are fixedly connected with a water inlet pipe (25) and a water outlet pipe (26).

2. The waste heat recovery device for the roller furnace quenching tank station according to claim 1 is characterized in that: Two groups of vertical rods (3) are fixedly connected to the inner bottom wall of the quenching tank (11), and the lower rod (2) and the upper rod (21) are both located on both sides of the two groups of vertical rods (3).

3. The waste heat recovery device for a roller furnace quenching tank station according to claim 1 is characterized in that: The flap group (22) comprises three centrally symmetrical flaps, and the flaps are all fixedly connected to the outer side walls of the lower rod (2) and the upper rod (21).

4. The waste heat recovery device for a roller furnace quenching tank station according to claim 1 is characterized in that: Two transmission motors (4) are fixedly connected to one side of the quenching tank (11) away from the lower gear (23), and the output ends of the transmission motors (4) both penetrate the side wall of the quenching tank (11) and are fixedly connected to the lower rod (2).

5. The waste heat recovery device for a roller furnace quenching tank station according to claim 1, characterized in that: A water inlet (5) and a water outlet (51) are provided on both sides of the quenching tank (11); the water inlet (5) is located at the bottom of the quenching tank (11); the water outlet (51) is located at the top of the quenching tank (11); the water inlet pipe (25) is fixedly connected to the quenching tank (11) through the water inlet (5); and the water outlet pipe (26) is fixedly connected to the quenching tank (11) through the water outlet (51).

6. The waste heat recovery device for a roller furnace quenching tank station according to claim 1, characterized in that: A cooling water tank (6) and a hot water storage tank (61) are fixedly connected to both sides of the top of the bottom plate (1); the cooling water tank (6) is fixedly connected to a water inlet pipe (25), and the hot water storage tank (61) is fixedly connected to a water outlet pipe (26).

7. The waste heat recovery device for a roller furnace quenching tank station according to claim 1, characterized in that: Two groups of through holes (7) are provided on both sides of the quenching tank (11), and the lower rod (2) and the upper rod (21) are rotatably connected to the quenching tank (11) through the through holes (7).

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