Rapid cooling structure of bell-type furnace

Abstract

The utility model relates to the field of bell-type furnaces, and particularly discloses a bell-type furnace rapid cooling structure, which comprises a furnace bottom, an inner cover and an outer cover, the furnace bottom comprises a base, an inner cover mounting platform and a material table, the outer cover is fixed on the base, the inner cover mounting platform is fixed in the middle of the base, and an annular mounting groove is arranged above the inner cover mounting platform. A motor mounting groove is formed in the bottom of the inner cover mounting platform, a fan motor is arranged in the bottom mounting groove and connected with a rotating shaft, one end of the rotating shaft penetrates through the top of the bottom mounting groove and is connected with a fan, and the fan is located in the sealing cover. The inner cover mounting platform and the base are provided with ventilation pipelines, the sealing cover is provided with a plurality of ventilation openings capable of being opened and closed, the sealing cover is arranged on the furnace bottom, it can be guaranteed that no heat overflows from the ventilation pipelines on the furnace bottom in the heating operation process, a fan is arranged in the sealing cover, and a fan motor is arranged to drive the fan to rotate; air can be blown into the furnace from the ventilation pipeline through the fan, and then hot air is exhausted through the exhaust outlet in the inner cover and the air outlet in the outer cover, so that the temperature in the furnace is quickly reduced.

Description

Technical Field

[0001] This utility model relates to the field of bell-type furnaces, specifically to a rapid cooling structure for bell-type furnaces. Background Technology

[0002] A bell-type furnace is a heat treatment furnace consisting of a furnace base and a bell shell. Bell-type furnaces are generally used for annealing metals.

[0003] Metal annealing is a heat treatment process designed to improve the properties of metals through heating, holding, and cooling. The main steps include heating, holding, and cooling. Annealing is typically performed in a bell-type furnace, usually by heating the furnace hood using a heating device such as a spray gun. Holding is achieved through a double-layered, sealed shell. Cooling depends on the metal being treated and is generally divided into rapid cooling and slow cooling. Rapid cooling is achieved by pouring cooling water onto the inner shell, while slow cooling is achieved by opening the outer shell to expose the inner shell to air. While rapid cooling with cooling water can achieve quick cooling, it also poses corrosion problems and safety hazards. Therefore, a new rapid cooling structure for bell-type furnaces is needed to address these issues. Utility Model Content

[0004] This utility model aims to solve the technical problems mentioned in the background section and proposes the following technical solutions:

[0005] A rapid cooling structure for a bell-type furnace includes a furnace bottom, an inner cover, and an outer cover. The inner cover and outer cover are respectively installed on the furnace bottom, with the outer cover fitted over the inner cover. The furnace bottom includes a base, an inner cover mounting platform, and a material platform. The outer cover is fixed to the base, and the inner cover mounting platform is fixed at the middle of the base. An annular mounting groove is provided above the inner cover mounting platform, and the bottom of the inner cover is installed in the annular mounting groove. A sealing cover is provided on the inner cover mounting platform, and the material platform is installed on top of the sealing cover. A motor mounting groove is provided at the bottom of the inner cover mounting platform, and a fan motor is installed in the motor mounting groove. The fan motor is connected to a rotating shaft, one end of which passes through the top of the motor mounting groove and is connected to a fan. The fan is located inside the sealing cover. Ventilation ducts are provided on the inner cover mounting platform and the base, and several openable and closable ventilation openings are provided on the sealing cover.

[0006] The inner cover has an exhaust vent at the top, and an electromagnetic valve is installed inside the exhaust vent. The outer cover has an air outlet on one side.

[0007] Preferably, the inner cover is threadedly connected to the annular mounting groove.

[0008] Preferably, the openable vent includes a vent, a baffle, and a lifting cylinder. The vent is located on the sealing cover. Baffle grooves are provided on the left and right sides of the vent. A baffle placement groove is provided on the top of the vent. A baffle slot is provided on the bottom of the vent. The baffle is located in the baffle slot. A cylinder placement groove is provided on the inner cover mounting platform. The cylinder placement groove communicates with the baffle placement groove. The lifting cylinder is located in the cylinder placement groove. A lifting rod is connected to the lifting cylinder. One end of the lifting rod is fixed to the bottom of the baffle.

[0009] Preferably, the baffle is made of heat-insulating material.

[0010] Preferably, the outer periphery of the outer cover is provided with heat dissipation pipes, and the heat dissipation pipes are connected to the air outlet.

[0011] The beneficial effects of this utility model are:

[0012] 1. By installing a sealing cover on the bottom of the furnace, it can be ensured that no heat will escape from the ventilation ducts on the bottom of the furnace during the heating process. A fan is installed inside the sealing cover, and a fan motor drives the fan to rotate. The fan blows air into the furnace from the ventilation ducts, and then the hot air is discharged through the exhaust port on the inner cover and the air outlet on the outer cover, thereby quickly reducing the temperature inside the furnace.

[0013] 3. By installing heat dissipation pipes at the air outlet, the exhausted hot air will gradually dissipate heat through the heat dissipation pipes, which can prevent a large amount of hot air from burning the staff. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

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

[0016] Figure 3 for Figure 2 Enlarged view at the center circle

[0017] Figure 4 This is a schematic diagram of the structure of this utility model in Embodiment 3.

[0018] In the diagram: 1. Furnace bottom; 1-1. Base; 1-2. Inner cover mounting platform; 1-21. Annular mounting groove; 1-22. Motor mounting groove; 1-23. Cylinder placement groove; 1-3. Material platform; 2. Inner cover; 2-1. Exhaust vent; 2-2. Solenoid valve; 3. Outer cover; 3-1. Air outlet; 4. Fan motor; 5. Rotating shaft; 6. Fan; 7. Sealing cover; 8. Ventilation duct; 9. Openable vent; 9-1. Ventilation vent; 9-11. Baffle slide groove; 9-12. Baffle placement groove; 9-13. Baffle slot; 9-2. Baffle; 9-3. Lifting cylinder; 10. Lifting rod; 11. Heat dissipation duct. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] In the description of this utility model, it should be understood that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. The connection methods described by the terms "fixed connection" and "fixed setting" include, but are not limited to, "welding," "riveting," "adhesion," and "threaded connection." The terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0021] The terms “upper,” “lower,” “front,” “back,” “left,” “right,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] Example 1

[0023] Reference Figure 1-3A rapid cooling structure for a bell-type furnace includes a furnace bottom 1, an inner cover 2, and an outer cover 3. The inner cover 2 and the outer cover 3 are respectively installed on the furnace bottom 1, with the outer cover 3 covering the outside of the inner cover 2. The furnace bottom 1 includes a base 1-1, an inner cover mounting platform 1-2, and a material platform 1-3. The outer cover 3 is fixed to the base 1-1, and the inner cover mounting platform 1-2 is fixed in the middle of the base 1-1. An annular mounting groove 1-21 is provided above the inner cover mounting platform 1-2, and the bottom of the inner cover 2 is installed in the annular mounting groove 1-21. A sealing cover 7 is installed on the mounting platform 1-2. The material platform 1-3 is installed on the top of the sealing cover 7. A motor mounting slot 1-22 is installed at the bottom of the inner cover mounting platform 1-2. A fan motor 4 is installed in the motor mounting slot 1-22. The fan motor 4 is connected to a rotating shaft 5. One end of the rotating shaft 5 passes through the top of the motor mounting slot 1-22 and is connected to a fan 6. The fan 6 is located inside the sealing cover 7. Ventilation ducts 8 are installed on the inner cover mounting platform 1-2 and the base 1-1. Several openable and closable ventilation openings 9 are installed on the sealing cover 7.

[0024] An exhaust vent 2-1 is provided on the top of the inner cover 2, and an electromagnetic valve 2-2 is provided inside the exhaust vent 2-1. An air outlet 3-1 is provided on one side of the outer cover 3.

[0025] Preferably, the inner cover 2 is threadedly connected to the annular mounting groove 1-21.

[0026] In actual operation, when cooling is required, the fan motor 4 can be started, which will drive the fan 6 to rotate. The rotation of the fan 6 will draw cold air from the outside through the ventilation duct 8 into the sealed cover 7. At this time, the openable vent 9 on the sealed cover can be opened, and the solenoid valve 2-2 and the air outlet 3-1 in the exhaust port 2-1 can be opened, allowing the cold air to enter the inner cover 2. The heat in the inner cover 2 is then discharged from the exhaust port 2-1 into the outer cover 3, and then discharged into the air through the air outlet 3-1. This cooling method can be carried out continuously, which can quickly reduce the working temperature inside the bell furnace, thereby meeting the annealing requirements of some metals. In addition, this method eliminates the need for traditional water injection, which can further ensure the structure and hardness of the metal.

[0027] Example 2

[0028] Referring to the figure, the difference between this embodiment and embodiment one is that the openable vent 9 includes a vent 9-1, a baffle 9-2, and a lifting cylinder 9-3. The baffle 9-2 is made of heat insulation material such as rock wool board or asbestos, which can effectively isolate the heat inside and outside the sealing cover 7. The vent 9-1 is located on the sealing cover 7. Baffle slide grooves 9-11 are provided on the left and right sides of the vent 9-1. A baffle placement groove 9-2 is provided on the top of the vent 9-1. A baffle slot 9-13 is provided on the bottom of the vent 9-1. The baffle 9-2 is located in the baffle slot 9-13. A cylinder placement groove 1-23 is provided on the inner cover mounting platform 1-2. The cylinder placement groove 1-23 is connected to the baffle placement groove 9-2. The lifting cylinder 9-3 is located in the cylinder placement groove 1-23. A lifting rod 10 is connected to the lifting cylinder 9-3. One end of the lifting rod 10 is fixed to the bottom of the baffle 9-2.

[0029] In actual operation, when heat dissipation is required, the lifting cylinder (9-3) can be activated to pull the lifting rod 10 downward. The lifting rod 10 drives the baffle 9-2 to move downward along the direction of the baffle slide groove 9-11 until the vent 9-1 opens. At this time, the cold air blown in by the fan 6 from the bottom ventilation duct 8 will enter the inner cover 2 through the vent 9-1 and quickly cool the inside of the inner cover 2.

[0030] Example 3

[0031] Referring to the figure, the difference between this embodiment and the first embodiment is that a heat dissipation pipe 11 is provided on the outer periphery of the outer cover 3. The heat dissipation pipe 11 is connected to the air outlet 3-1. The heat dissipation pipe 11 dissipates the hot air emitted from the air outlet 3-1, which can avoid the problem of a large amount of hot air emitting and burning the staff.

Claims

1. A bell-type furnace rapid cooling structure comprising a furnace bottom (1), an inner bell (2) and an outer bell (3), the inner bell (2) and the outer bell (3) being respectively installed on the furnace bottom (1), the outer bell (3) being sleeved outside the inner bell (2), characterized in that, The furnace bottom (1) comprises a base (1-1), an inner cover mounting platform (1-2) and a material table (1-3), the outer cover (3) is fixed on the base (1-1), the inner cover mounting platform (1-2) is fixed at the middle position of the base (1-1), an annular mounting groove (1-21) is arranged above the inner cover mounting platform (1-2), the inner cover (2) is mounted in the annular mounting groove (1-21), a sealing cover (7) is arranged on the inner cover mounting platform (1-2), the material table (1-3) is mounted on the top of the sealing cover (7), a motor mounting groove (1-22) is arranged at the bottom of the inner cover mounting platform (1-2), a fan motor (4) is arranged in the motor mounting groove (1-22), the fan motor (4) is connected with a rotating shaft (5), one end of the rotating shaft (5) penetrates through the top of the motor mounting groove (1-22) and is connected with a fan (6), the fan (6) is located in the sealing cover (7), ventilation pipes (8) are arranged on the inner cover mounting platform (1-2) and the base (1-1), a plurality of openable ventilation openings (9) are arranged on the sealing cover (7). An exhaust opening (2-1) is arranged at the top of the inner cover (2), an electromagnetic valve (2-2) is arranged in the exhaust opening (2-1), and an air outlet (3-1) is arranged on one side of the outer cover (3).

2. The bell-type furnace rapid cooling structure according to claim 1, characterized in that, The inner cover (2) is threadedly connected with the annular mounting groove (1-21).

3. The bell-type furnace rapid cooling structure according to claim 1, characterized in that, The openable ventilation opening (9) comprises a ventilation opening (9-1), a baffle (9-2) and a lifting cylinder (9-3), the ventilation opening (9-1) is located on the sealing cover (7), baffle sliding grooves (9-11) are arranged on the left and right sides of the ventilation opening (9-1), a baffle placing groove (9-12) is arranged at the top of the ventilation opening (9-1), a baffle insertion groove (9-13) is arranged at the bottom of the ventilation opening (9-1), the baffle (9-2) is located in the baffle insertion groove (9-13), a cylinder placing groove (1-23) is arranged on the inner cover mounting platform (1-2), the cylinder placing groove (1-23) is communicated with the baffle placing groove (9-12), the lifting cylinder (9-3) is located in the cylinder placing groove (1-23), a lifting rod (10) is connected to the lifting cylinder (9-3), and one end of the lifting rod (10) is fixed to the bottom of the baffle (9-2).

4. The bell-type furnace rapid cooling structure according to claim 3, wherein The baffle (9-2) is made of heat insulation material.

5. The bell-type furnace rapid cooling structure according to claim 1, wherein A heat dissipation pipeline (11) is arranged on the outer periphery of the outer cover (3), and the heat dissipation pipeline (11) is connected with the air outlet (3-1).

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