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

Abstract

The utility model provides an energy-saving environment-friendly annealing furnace for stainless steel tubes, which comprises an annealing furnace case, an energy-saving loading and unloading mechanism, a heating copper ring, a fan and a waste gas treater, the energy-saving loading and unloading mechanism, the heating copper ring and the fan are mounted in the annealing furnace case, and the loading and unloading mechanism is positioned on the inner side of the heating copper ring; the waste gas treater is fixedly mounted on the outer side of the annealing furnace case; the energy-saving feeding and discharging mechanism of the annealing furnace is innovatively designed, a main structure is arranged in the annealing furnace, and a gear and rack mechanism is adopted to accurately control feeding and discharging of steel pipes. According to the design, the equipment size is reduced, the operation is simplified, meanwhile, heat leakage is effectively prevented, and the energy efficiency is improved. And a gear rack mechanism replaces a spring, so that the stability and the precision of steel pipe feeding and discharging are improved, the influence of high temperature on the performance of the spring is avoided, and the reliability and the durability of equipment in a high-temperature environment are enhanced.

Description

Technical Field

[0001] The utility model belongs to the technical field of annealing furnaces, and in particular relates to an energy-saving and environment-friendly annealing furnace for stainless steel pipes. Background Art

[0002] Annealing process, as a key step in metal heat treatment, especially for steel pipes, involves heating the machine parts to a specific temperature, keeping the temperature and then slowly cooling them to eliminate structural defects, homogenize the composition, refine the grains, and thus improve the mechanical properties of the steel and improve the processing performance. However, when the steel pipes are taken out and put back in, the traditional annealing furnace is often accompanied by a large amount of heat leakage, which may not only cause the ambient temperature to rise, but also pose a risk of scalding the staff.

[0003] Although the energy-saving and environmentally friendly annealing furnace described in announcement number CN220317897U reduces heat leakage through a unique design, its main structure is located outside the annealing furnace, making the entire device bulky and inconvenient to operate. In addition, because it relies on the mechanism of spring elastic force to push the steel pipe, there are challenges in force control and spring performance stability in a long-term high temperature environment, which limits its reliability in long-term use.

[0004] Therefore, it is very necessary to invent an energy-saving and environmentally friendly annealing furnace for stainless steel pipes. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides an energy-saving and environmentally friendly annealing furnace for stainless steel pipes, comprising an annealing furnace chassis, an energy-saving loading and unloading mechanism, a heating copper ring, a fan and an exhaust gas processor, wherein the energy-saving loading and unloading mechanism, the heating copper ring and the fan are installed in the annealing furnace chassis, and the loading and unloading mechanism is located on the inner side of the heating copper ring; the exhaust gas processor is fixedly installed on the outer side of the annealing furnace chassis;

[0006] The energy-saving loading and unloading mechanism includes a steel pipe tray, a heat blocking plate, a sealing plate, a guide plate, a rack, a gear and a driving motor. There are several steel pipe trays, and the two ends of the steel pipe tray are respectively connected to the heat blocking plate and the sealing plate; the steel pipe tray is located on the inner side of the heating copper ring; the guide plate is fixedly installed in the annealing furnace chassis, and the guide plate slides through the heat blocking plate; the rack is fixedly installed on the heat blocking plate and is meshed with the gear. There are four gears in total, and two of the gears are fixed on the same core shaft, which is rotatably installed in the annealing furnace chassis, and any end of the core shaft rotates through the annealing furnace chassis and is fixed to the output end of the driving motor fixedly installed outside it.

[0007] Preferably, the steel pipe tray is a semicircular structure, and a slot is provided on the annealing furnace chassis to allow the steel pipe tray and the rack to slide out, and the sealing plate is located outside the slot provided on the annealing furnace chassis, and the slot corresponding to the steel pipe tray is allowed to be blocked by the sealing plate and the heat blocking plate.

[0008] Preferably, the heat blocking plate and the sealing plate have the same structure and size, the heat blocking plate is located inside the annealing furnace chassis, and the sealing plate is located outside the annealing furnace chassis.

[0009] Preferably, the guide plate is located below the steel pipe tray, the guide plate is a rectangular structure, and a slide groove allowing the guide plate to slide through is provided on the heat blocking plate.

[0010] Preferably, one end of the rack is fixedly connected to the heat blocking plate, and the other end of the rack is sealed and slidably passed through a slot opened in the annealing furnace chassis to the outside.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The utility model has made innovations in the design of the energy-saving loading and unloading mechanism of the annealing furnace. Abandoning the limitations of the traditional technology in which the main structure is located outside the annealing furnace and relying on the spring elastic force to push out the steel pipe, this design cleverly built the main structure of the energy-saving loading and unloading mechanism inside the annealing furnace, and introduced a gear rack mechanism to accurately control the entry and discharge of the steel pipe. Not only does it significantly reduce the overall volume of the equipment, making the operation more convenient, but also through the built-in structure, it more effectively reduces heat leakage and improves energy efficiency. More importantly, the use of a gear rack mechanism instead of spring elastic force ensures the stability and precision of the steel pipe during the entry and exit process, while avoiding the problem of spring performance degradation caused by high temperature environment, significantly improving the reliability and durability of the equipment in long-term high temperature working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0014] Figure 2 It is a partial cross-sectional structural schematic diagram of the utility model.

[0015] Figure 3 This utility model Figure 2 Another perspective structural diagram of .

[0016] In the figure:

[0017] Annealing furnace chassis 1, energy-saving loading and unloading mechanism 2, steel pipe tray 21, heat blocking plate 22, sealing plate 23, guide plate 24, rack 25, gear 26, drive motor 27, heating copper ring 3, fan 4, exhaust gas processor 5. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be described clearly and completely below. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0019] In the description of the embodiments, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0020] As attached Figure 1 To Attachment Figure 3 As shown:

[0021] The utility model provides an energy-saving and environmentally friendly annealing furnace for stainless steel pipes, comprising an annealing furnace chassis 1, an energy-saving loading and unloading mechanism 2, a heating copper ring 3, a fan 4 and an exhaust gas processor 5. The energy-saving loading and unloading mechanism 2, the heating copper ring 3 and the fan 4 are installed in the annealing furnace chassis 1, and the loading and unloading mechanism 2 is located on the inner side of the heating copper ring 3; the exhaust gas processor 5 is fixedly installed on the outer side of the annealing furnace chassis 1.

[0022] The energy-saving loading and unloading mechanism 2 includes a steel pipe tray 21, a heat blocking plate 22, a sealing plate 23, a guide plate 24, a rack 25, a gear 26 and a driving motor 27. There are several steel pipe trays 21, and the two ends of the steel pipe tray 21 are respectively connected to the heat blocking plate 22 and the sealing plate 23; the steel pipe tray 21 is located on the inner side of the heating copper ring 3; the guide plate 24 is fixedly installed in the annealing furnace chassis 1, and the guide plate 24 slides through the heat blocking plate 22; the rack 25 is fixedly installed on the heat blocking plate 22 and is meshed and connected with the gear 26. There are four gears 26 in total, and two of the gears 26 are fixed on the same core shaft, which is rotatably installed in the annealing furnace chassis 1, and any end of the core shaft rotates through the annealing furnace chassis 1 and is fixed to the output end of the driving motor 27 fixedly installed outside it. The main structure of the energy-saving loading and unloading mechanism 2 is built into the annealing furnace chassis 1, and a rack and pinion mechanism (rack 25 and gear 26) is introduced to accurately control the entry and exit of the steel pipe. Not only does it significantly reduce the overall volume of the equipment, making the operation more convenient, but also through the built-in structure, it more effectively reduces heat leakage and improves energy utilization efficiency.

[0023] Embodiment 1:

[0024] Specifically, the steel pipe tray 21 is a semicircular structure, which can better adapt to the shape of the steel pipe and facilitate the removal of the steel pipe. A notch is specially provided on the annealing furnace chassis 1 to allow the steel pipe tray 21 and the rack 25 connected thereto to slide in and out smoothly. In order to effectively prevent heat from leaking out of the notch of the annealing furnace chassis 1, a blocking plate 23 is provided on the outside of the notch. When the steel pipe tray 21 and the rack 25 slide to a certain extent in the notch, the blocking plate 23 can fit tightly into the notch, playing a role in heat insulation and preventing heat leakage. In addition, in order to further enhance the heat insulation effect, the present design also provides a heat blocking plate 22 on the inner side of the blocking plate 23, and the notch portion corresponding to the steel pipe tray 21 can be effectively blocked by these two layers of structure, thereby minimizing heat loss.

[0025] Specifically, the heat blocking plate 22 and the sealing plate 23 have the same structure and size, and the heat blocking plate 22 is located inside the annealing furnace chassis 1, directly facing the high temperature environment. It is a heat insulation barrier to avoid the direct impact of the internal high temperature on the external environment and leakage. The material selection of the heat blocking plate 22 adopts high temperature resistance and heat insulation performance to ensure that a stable heat insulation effect can be maintained in a long-term high temperature environment, and the sealing plate 23 is located outside the annealing furnace chassis 1.

[0026] Specifically, the guide plate 24 is located below the steel pipe tray 21 , and the guide plate 24 is a rectangular structure. The heat blocking plate 22 is provided with a slide groove opening that allows the guide plate 24 to slide through.

[0027] Specifically, one end of the rack 25 is fixedly connected to the heat blocking plate 22, ensuring that when the rack 25 moves, the heat blocking plate 22 can also move synchronously therewith, thereby achieving precise control of the steel pipe tray 21 and the steel pipe. The other end of the rack 25 is sealed and slid out through the notch opened in the annealing furnace chassis 1. The "sealed sliding" here means that when the rack 25 passes through the notch, it can effectively prevent heat from leaking out and ensure the temperature inside the annealing furnace is stable. In order to achieve this, a high temperature resistant sealing material or design may be used between the rack 25 and the notch to ensure that good sealing performance can be maintained under high temperature conditions.

[0028] Embodiment 2:

[0029] During operation, the driving motor 27 drives the mandrel to rotate, and the linear reciprocating motion of the rack 25 is realized through the meshing of the gear 26 and the rack 25. The movement of the rack 25 drives the steel pipe tray 21 to slide in and out of the annealing furnace chassis 1 under the guidance of the guide plate 24, realizing efficient loading and unloading of the steel pipe. A heat blocking plate 22 is provided inside the annealing furnace chassis 1 as a heat insulation barrier for the steel pipe discharge, directly facing the high temperature environment, and used to block the notch during the discharge of the steel pipe. The blocking plate 23 located outside can fit tightly into the notch when the steel pipe tray 21 is fully entered, avoiding the leakage of internal heat when heating the steel pipe, and improving energy utilization efficiency. In terms of the workflow, in the initial state, the steel pipe tray 21 is located outside the annealing furnace, and the heat blocking plate 22 fits tightly into the notch to form insulation. After starting the motor, the steel pipe tray 21 drives the steel pipe into the annealing furnace, and the heating copper ring 3 heats the steel pipe. The fan 4 and the exhaust gas processor 5 are responsible for heat dissipation and exhaust gas treatment respectively. After the heating is completed, the steel pipe tray 21 drives the steel pipe out of the annealing furnace again, and the heat blocking plate 22 is re-attached to prepare for the next operation. The whole process is not only efficient and convenient, but also energy-saving and environmentally friendly, and effectively improves the annealing efficiency of the stainless steel pipe.

[0030] Utilizing the technical solution described in the utility model, or those skilled in the art designing similar technical solutions inspired by the technical solution of the utility model to achieve the above-mentioned technical effects, all fall within the protection scope of the utility model.

Claims

1. Energy-saving and environmentally friendly annealing furnace for stainless steel pipes, characterized in that: The invention comprises an annealing furnace case (1), an energy-saving loading and unloading mechanism (2), a heating copper ring (3), a fan (4) and an exhaust gas treatment device (5); the energy-saving loading and unloading mechanism (2), the heating copper ring (3) and the fan (4) are installed in the annealing furnace case (1); the loading and unloading mechanism (2) is located on the inner side of the heating copper ring (3); the exhaust gas treatment device (5) is fixedly installed on the outer side of the annealing furnace case (1); The energy-saving loading and unloading mechanism (2) comprises a steel pipe tray (21), a heat blocking plate (22), a sealing plate (23), a guide plate (24), a rack (25), a gear (26) and a driving motor (27), wherein the steel pipe tray (21) is provided with a plurality of them, and the two ends of the steel pipe tray (21) are respectively connected to the heat blocking plate (22) and the sealing plate (23); the steel pipe tray (21) is located on the inner side of the heating copper ring (3); the guide plate (24) is fixedly mounted on the annealing In the furnace casing (1), the guide plate (24) slides through the heat blocking plate (22); the rack (25) is fixedly mounted on the heat blocking plate (22) and meshes with the gear (26), a total of four gears (26) are provided, and two of the gears (26) are fixed on the same mandrel, which is rotatably mounted in the annealing furnace casing (1), and either end of which rotates through the annealing furnace casing (1) and is fixed to the output end of the drive motor (27) fixedly mounted outside the mandrel.

2. The energy-saving and environmentally friendly annealing furnace for stainless steel pipes according to claim 1, characterized in that: The steel pipe tray (21) is of a semicircular structure. A slot is provided on the annealing furnace case (1) to allow the steel pipe tray (21) and the rack (25) to slide out. The blocking plate (23) is located outside the slot provided on the annealing furnace case (1). The slot corresponding to the steel pipe tray (21) is allowed to be blocked by the blocking plate (23) and the heat blocking plate (22).

3. The energy-saving and environmentally friendly annealing furnace for stainless steel pipes according to claim 1, characterized in that: The heat blocking plate (22) and the sealing plate (23) have the same structure and size; the heat blocking plate (22) is located inside the annealing furnace chassis (1), while the sealing plate (23) is located outside the annealing furnace chassis (1).

4. The energy-saving and environmentally friendly annealing furnace for stainless steel pipes according to claim 1, characterized in that: The guide plate (24) is located below the steel pipe tray (21), and the guide plate (24) is a rectangular structure. The heat blocking plate (22) is provided with a sliding groove opening that allows the guide plate (24) to slide through.

5. The energy-saving and environmentally friendly annealing furnace for stainless steel pipes according to claim 1, characterized in that: One end of the rack (25) is fixedly connected to the heat blocking plate (22), and the other end of the rack (25) is sealed and slidably passed through a slot provided in the annealing furnace chassis (1) to the outside.

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