Novel continuous heat treatment furnace

Abstract

In order to solve the problem of poor heat preservation performance of traditional bricks in the prior art, the utility model provides a novel continuous heat treatment furnace which comprises a feeding section, a hearth and a cooling discharging section which are connected in sequence, the feeding section is provided with a feeding exhaust hood, a roller bracket penetrating through the feeding exhaust hood and a baffle plate arranged above the roller bracket, and the baffle plate is provided with a baffle plate. According to the utility model, a steel belt transmission structure is adopted, the heat absorption and cooling are fast, the heat loss is low, and the comprehensive energy-saving effect is achieved.

Description

Technical Field

[0001] The utility model relates to the field of metal heat treatment, in particular to a novel continuous heat treatment furnace. Background Art

[0002] The traditional annealing furnace mainly has the following disadvantages: the traditional bricks have poor heat preservation performance; the traditional use of mesh belts for temperature rise and fall absorbs heat and has high heat loss; the connections of the furnace linings are fixed, resulting in telescopic deformation during temperature rise and fall; the traditional gas pressure angle is insufficient and cannot effectively protect the furnace atmosphere; the traditional water and gas pipeline valves are manually adjusted, with relay circuits, relying on experience.

[0003] In order to solve the above problems, the Chinese utility model patent with the patent number CN213327746U proposes a vertical continuous annealing furnace for steel strip annealing, including a furnace body, which is composed of a heating furnace body and a cooling furnace body. A material guiding roller group is arranged in the heating furnace body and the cooling furnace body. The material guiding roller group is composed of material guiding rollers and roller shafts. The left lower end of the heating furnace body is provided with a feeding port, the upper right end of the cooling furnace body is provided with a discharging port, and an intermediate feeding port is arranged between the heating furnace body and the cooling furnace body. Top feeding roller groups are arranged at the feeding port and the discharging port. The top feeding roller group is composed of a slide plate, a spring, a base block, a pressing roller and a rotating shaft. A steel strip body is sleeved on the material guiding roller. However, through the structure of the feeding roller group arranged at the feeding port and the discharging port, the utility model ensures the stability of the steel strip body during continuous feeding and discharging in the furnace body, but there are deficiencies in the design of heat transfer and heat preservation. Summary of the Utility Model

[0004] The utility model mainly solves the problem of poor heat preservation performance of traditional bricks in the prior art, and provides a novel continuous heat treatment furnace.

[0005] The above technical problems of the utility model are mainly solved by the following technical solutions:

[0006] A novel continuous heat treatment furnace, characterized in that it includes a feeding section, a furnace chamber and a cooling and discharging section connected in sequence. The feeding section is provided with a feeding exhaust hood, a roller bracket passing through the feeding exhaust hood, and a baffle installed above the roller bracket. A steel strip is also arranged between the roller bracket and the baffle. The utility model adopts a steel strip transmission structure, with fast heat absorption and cooling and low heat loss, achieving the effect of comprehensive energy saving.

[0007] As a preferred solution, the cooling and discharging section includes a number of furnace lining support seats connected end to end, and a roller adjusting structure is arranged below the connection of the furnace lining support seats to avoid telescopic deformation of the furnace lining during temperature rise and fall.

[0008] As a preferred solution, the roller adjusting structure includes a vertically installed slideway, a roller is arranged inside the slideway, and a roller shaft is also arranged between the slideway and the roller.

[0009] As a preferred solution, an adjustment knob is further provided at the top of the slideway.

[0010] As a preferred solution, a gas flow meter and a water temperature display meter are provided above the furnace liner support seat. The centralized control is changed to zoned water temperature control, and the instrument temperature monitoring facilitates the control of the process parameters of each zone.

[0011] As a preferred solution, a filtering and flame retardant device is further provided on one side of the furnace liner support seat to improve the gas purity and safety.

[0012] As a preferred solution, a furnace frame is provided below the cooling and discharging section for supporting the furnace chamber.

[0013] As a preferred solution, a decentralized air inlet is further provided in the cooling and discharging section to make the atmosphere in the furnace chamber uniform and effectively provide sufficient protection.

[0014] As a preferred solution, a control panel is electrically connected to one side of the feeding and exhaust hood for easy monitoring, analysis, and storage.

[0015] Therefore, the advantages of the present utility model are as follows:

[0016] 1. The present utility model adopts a steel belt drive structure, which has fast heat absorption and cooling, low heat loss, and achieves comprehensive energy saving.

[0017] 2. The present utility model adopts a roller adjustable type to solve the problem of telescopic deformation during temperature rise and fall and improve the service life of the furnace liner.

[0018] 3. The air inlet of the present utility model is changed from a direct injection type to a decentralized type, so that the atmosphere in the furnace chamber is fully and evenly distributed.

[0019] 4. The present utility model uses intelligent monitoring: ① An integrated configuration control panel is adopted to automatically realize the functions of temperature rise and fall; ② The process parameters of each gas pipeline can be analyzed, stored, and called; ③ The gas flow meters of each pipeline are intelligently monitored, and the touch screen is used for adjustment to control the electric control regulating valve, so as to realize intelligent remote automatic adjustment; ④ Abnormal alarms such as flow meters, temperature sensors, current and voltage sampling transmitters, dew point meters, and oxygen content detection, empty furnace alarms, and abnormal current detection alarms. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the structural diagram of the present utility model.

[0021] Figure 2 is the steel belt drive structure of the present utility model.

[0022] Figure 3 is the roller adjustment mechanism of the present utility model.

[0023] Figure 4This is the diagram of the partition water temperature control mechanism of the present utility model.

[0024] In the figure: 1. Feed air exhaust hood; 2. Roller bracket; 3. Baffle; 4. Steel belt; 5. Furnace lining support seat; 6. Drum adjustment structure; 7. Gas flow meter; 8. Water temperature display meter; 9. Furnace frame; 10. Filter and flame retardant device; 11. Control panel; 61. Slideway; 62. Drum; 63. Roller shaft; 64. Adjusting knob. Specific implementation mode

[0025] The technical solution of the present utility model will be further specifically described below through embodiments in conjunction with the drawings.

[0026] Embodiment 1:

[0027] Since the traditional annealing furnace mainly adopts a brick structure, and the heat preservation performance of this material is relatively poor, resulting in a large amount of heat loss. Moreover, the traditional annealing furnace adopts a mesh belt drive structure during the heating and cooling process, and this structure has extremely high heat loss during the heat absorption process, seriously affecting the working efficiency of the furnace. At the same time, the mesh belt material is prone to deformation and even fracture under continuous high temperature, which not only increases the maintenance cost of the equipment, but also brings certain hidden dangers to production safety. In addition, there are obvious deficiencies in the design of the connection of the furnace lining of the traditional annealing furnace. Due to the use of a fixed connection, when the temperature in the furnace changes, the expansion and contraction deformation of the furnace lining due to thermal expansion and contraction cannot be effectively buffered. In the long run, it will inevitably cause irreversible damage to the structure of the furnace body. In terms of the protection of the furnace atmosphere, the traditional annealing furnace also performs poorly. Due to the insufficient design of the gas pressure angle, the atmosphere in the furnace cannot be effectively protected, which not only affects the heat treatment effect of the product, but also increases the energy consumption to a certain extent. Finally, we must also note the backwardness of the traditional annealing furnace in the control system. The traditional water and gas pipeline valves mainly rely on manual adjustment and relay circuit control. This way of operating based on experience is not only inefficient but also has a large error, and it can no longer meet the requirements of modern industrial production for high precision and high automation.

[0028] To solve the above problems, the present application provides a new type of continuous heat treatment furnace, which includes a feeding section, a furnace chamber, and a cooling and discharging section connected in sequence. The feeding section is provided with a feeding exhaust hood 1 to ensure the smoothness and safety of the feeding process, a roller bracket 2 passing through the feeding exhaust hood 1, and a baffle 3 installed above the roller bracket 2. A steel belt 4 is also provided between the roller bracket 2 and the baffle 3. The utility model adopts a steel belt 4 transmission structure, which has many advantages such as fast heat absorption and cooling and low heat loss. Due to the excellent thermal conductivity of the steel belt 4, it can quickly absorb and transfer heat within a short time, thus greatly reducing the heat loss in the furnace. At the same time, the steel belt 4 has high strength and good wear resistance, and can maintain stable performance even in a high-temperature environment, effectively extending the service life of the equipment. Generally speaking, this new type of continuous heat treatment furnace fully considers various factors such as energy conservation, high efficiency, and safety in design, and realizes a comprehensive upgrade of the traditional annealing furnace by adopting an advanced steel belt 4 transmission structure and optimizing the control system.

[0029] The cooling and discharging section includes several furnace lining support seats 5 connected end to end. Below the connection of the furnace lining support seats 5, there is a roller 62 adjustment structure 6. These support seats are connected end to end to form a stable support structure, ensuring the stability and safety of the furnace lining during the entire processing process. It is worth mentioning that the connection of the furnace lining support seats 5 is designed quite ingeniously. Below it, a special roller 62 adjustment structure 6 is set. The main purpose of this design is to deal with the telescopic deformation problems that the furnace lining may encounter during the heating and cooling processes. As we all know, when the temperature of metal materials changes, their sizes will change due to the principle of thermal expansion and contraction. In the working environment of a high-temperature furnace lining, this change is particularly obvious. If not properly controlled and adjusted, the deformation of the furnace lining may seriously affect the production process and even lead to safety accidents. The design of the roller 62 adjustment structure 6 fully takes this into account. The roller 62 adjustment structure 6 includes a vertically installed slideway 61. Inside the slideway 61, there is a roller 62. Between the slideway 61 and the roller 62, there is also a roller shaft 63. The flexibility of this structure enables it to effectively absorb the telescopic amount generated by the furnace lining due to temperature changes, thus maintaining the overall stability of the furnace lining. Specifically, the slideway 61, as the main support and guiding structure, not only provides the track for the up and down movement of the roller 62 but also ensures the stability and accuracy of the roller 62 during the movement. The roller 62 plays a key adjustment role. It can move freely within the slideway 61 to adapt to the telescopic changes of the furnace lining. The existence of the roller shaft 63 further reduces the frictional resistance between the roller 62 and the slideway 61, making the adjustment process smoother and more efficient. At the top of the slideway 61, there is an adjustment knob 64. The setting of the adjustment knob 64 not only facilitates the operator to manually adjust the position of the roller 62 according to actual needs but also enables fine control of the telescopic amount of the furnace lining when necessary. This design not only improves the operation convenience of the equipment but also provides strong guarantees for the flexibility and safety during the production process. In practical applications, this roller 62 adjustment structure 6 shows extremely high practicality and reliability. Whether during the heating or cooling of the furnace lining, it can effectively absorb and adjust the telescopic deformation of the furnace lining, thus ensuring the smooth progress of the production process. Moreover, this structural design also has good economy and environmental protection. By reducing the equipment losses and maintenance costs caused by the deformation of the furnace lining, it saves a large amount of operating costs for the enterprise. At the same time, since it reduces the production accident and environmental pollution risks that may be caused by the deformation of the furnace lining, this structure also makes a positive contribution to the sustainable development and environmental protection responsibilities of the enterprise. Generally speaking, the design of the roller 62 adjustment structure 6 in the cooling and discharging section is an innovative and practical technological achievement. It not only solves the telescopic deformation problem of the furnace lining during the heating and cooling processes but also provides strong technical support for safe production and efficiency improvement in the industrial manufacturing field.

[0030] Above the furnace liner support seat 5, there are a gas flow meter 7 and a water temperature display meter 8. The centralized water temperature control has been changed to zoned water temperature regulation, and the instrument temperature monitoring facilitates the control of process parameters in each zone. The existence of these two major instruments is not only for monitoring, but also for achieving precise control of process parameters. The traditional centralized water temperature control method can meet production requirements to a certain extent, but it often seems powerless when faced with complex and changeable process requirements. The introduction of the zoned water temperature regulation technology undoubtedly provides an effective solution to this problem. Zoned regulation means dividing the entire furnace body into several independent control zones, and each zone is equipped with a corresponding water temperature regulation system. In this way, the water temperature in different zones can be flexibly adjusted according to actual needs, so as to achieve fine control of process parameters. Whether it is heating up, cooling down, or maintaining a constant temperature, it can be independently completed in each zone without interference. This not only greatly improves production efficiency, but also provides a strong guarantee for the stability of product quality. The setting of the gas flow meter 7 is to ensure the stability and controllability of the furnace atmosphere. By real-time monitoring the gas flow, the operator can timely understand the changes in the furnace atmosphere and make corresponding adjustments according to needs. This is crucial for the process flow that requires precise control of the atmosphere.

[0031] On one side of the furnace liner support seat 5, there is also a filter and flame retardant device 10 to improve gas purity and safety. The installation of the filter and flame retardant device 10 reflects a high degree of attention to safety. In industrial production, the purity and safety of gases are directly related to the stability and reliability of the entire production process. The existence of the filter and flame retardant device 10 is to ensure that the gases used in the furnace can reach the predetermined purity standard and effectively prevent safety hazards caused by gas impurities. The filter and flame retardant device 10 can effectively remove impurities and harmful substances in the gas through a multi-stage filtration system, ensuring that the gas entering the furnace is pure. At the same time, its flame retardant function can also suppress possible combustion or explosion accidents in the furnace to a certain extent, providing a solid barrier for production safety. To sum up, the design of the furnace liner support seat 5 not only reflects the pursuit of production efficiency, but also highlights the attention to safety. The careful configuration of key components such as the gas flow meter 7, the water temperature display meter 8, and the filter and flame retardant device 10 together constitutes a furnace body system with perfect functions and reliable safety. Such a design can not only meet the requirements of modern industrial production for high efficiency, high quality, and high safety, but also provide strong support for the long-term development of enterprises.

[0032] In modern industrial production, the cooling and discharging section is an indispensable part of the entire production process. It is located at the end of the entire furnace body and undertakes the important task of cooling high-temperature materials and discharging them smoothly. The efficiency and effect of this link directly affect the final quality of the product and the overall efficiency of production. Below the cooling and discharging section, there is a furnace frame 9 for supporting the furnace chamber. The design of the furnace frame 9 is crucial. It not only needs to have sufficient strength to support the weight of the entire furnace chamber but also ensure stability in a high-temperature environment. Usually, the furnace frame 9 is made of high-temperature-resistant and high-strength materials such as special steel or alloys to ensure that it will not deform or be damaged under long-term high-temperature action. The structural design of the furnace frame 9 is also very critical. It needs to consider factors such as thermal expansion, gravity load, and possible mechanical impacts to ensure the stability and safety of the entire furnace body.

[0033] The cooling and discharging section is also equipped with a distributed air inlet to make the furnace chamber atmosphere uniform and effectively obtain sufficient protection. This design allows cold air or specific gases to enter the furnace chamber evenly, come into contact with high-temperature materials, and thus achieve effective heat exchange. This uniform gas distribution is crucial for maintaining the stability of the atmosphere in the furnace chamber. It helps to avoid local overheating or uneven cooling and ensures a uniform temperature drop of the materials during the entire cooling process. In addition, the uniform gas flow also helps to reduce oxidation or other chemical reactions, thereby protecting the materials from damage and improving the quality of the product.

[0034] To achieve the uniformity of the furnace chamber atmosphere, the design of the air inlets needs to be very precise. They are usually distributed at different positions in the furnace chamber to ensure that the gas can cover every corner of the furnace chamber. In addition, the size, shape, and distribution of the air inlets also need to be optimized according to the specific dimensions of the furnace chamber and the characteristics of the materials to achieve the best cooling effect.

[0035] Safety and environmental protection are also important factors to be considered in the design of the cooling and discharging section. When working in a high-temperature environment, appropriate heat insulation and heat dissipation measures need to be taken to protect the safety of operators. At the same time, the discharged gases need to be treated to reduce the impact on the environment. This may include measures such as installing a flue gas purification system and using clean energy.

[0036] Maintenance and repair are also the keys to ensuring the long-term stable operation of the cooling and discharging section. Regular inspections and maintenance can detect and solve potential problems and extend the service life of the equipment. This includes inspections of the furnace frame 9, cleaning of the air inlets, calibration of the temperature control system, etc.

[0037] On one side of the feed air exhaust hood 1, there is an electrically connected control panel 11, which is convenient for monitoring, analyzing, and storing. Such a layout facilitates the operator to monitor and control the exhaust system at any time. The electrically connected method ensures the stable transmission of control signals and reduces faults caused by wiring problems. The control panel 11 integrates various functions, including but not limited to starting, stopping, speed regulation, temperature control, pressure monitoring, etc., which are all basic operations to ensure the normal operation of the exhaust system.

[0038] The monitoring function is one of the cores of the control panel 11. It can display the working status of the system in real time. These data are crucial for the operator because they are directly related to the quality of the material and the safety of the production process. By monitoring these parameters, the operator can discover and handle abnormal situations in time to avoid production accidents. The program control main interface of the control panel 11 has the following advantages:

[0039] 1. Adopt an integrated configuration control panel 11 to automatically realize the function of temperature rise and fall.

[0040] 2. It can analyze and store the process parameters of each gas pipeline for calling.

[0041] 3. Intelligently monitor the gas flow meters of each pipeline, cooperate with the touch screen to adjust, and control the electric control regulating valve to realize intelligent remote automatic adjustment.

[0042] 4. Abnormal alarms such as flow meters, temperature sensors, current and voltage sampling transmitters, dew point meters, oxygen content detection, empty furnace alarm, and abnormal current detection alarm.

[0043] The specific embodiments described in this article are only examples to illustrate the spirit of the present invention. Those skilled in the technical field to which the present invention belongs can make various modifications or supplements to the described specific embodiments or use similar methods to replace them, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A new type of continuous heat treatment furnace, characterized in that, It includes a feeding section, a furnace chamber, and a cooling and discharging section connected in sequence. The feeding section is provided with a feeding exhaust hood, a roller bracket passing through the feeding exhaust hood, and a baffle installed above the roller bracket. A steel belt is also provided between the roller bracket and the baffle. The cooling and discharging section includes a number of furnace lining support seats connected end to end, and a roller adjusting structure is provided below the connection of the furnace lining support seats.

2. A novel continuous heat treatment furnace according to claim 1, characterized in that, The roller adjusting structure includes a vertically installed slideway, a roller is provided inside the slideway, and a roller shaft is also provided between the slideway and the roller.

3. A novel continuous heat treatment furnace according to claim 2, characterized in that, An adjusting knob is further provided at the top of the slideway.

4. A novel continuous heat treatment furnace according to claim 1, characterized in that, A gas flow meter and a water temperature display meter are provided above the furnace lining support seats.

5. A novel continuous heat treatment furnace according to claim 1 or 4, characterized in that, A filtering and flame retardant device is also provided on one side of the furnace lining support seats.

6. A novel continuous heat treatment furnace according to claim 1, characterized in that, A furnace frame is provided below the cooling and discharging section.

7. A novel continuous heat treatment furnace according to claim 1 or 6, characterized in that, The cooling and discharging section is also provided with a decentralized air inlet.

8. A novel continuous heat treatment furnace according to claim 1, characterized in that, A control panel is electrically connected to one side of the feeding exhaust hood.

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