Vacuum rapid continuous furnace safety door

Abstract

The application relates to a vacuum rapid-congealing continuous furnace safety door which comprises a door frame arranged at the bottom of a continuous furnace, a maintenance opening arranged at the bottom of the continuous furnace and located in the door frame, a rectangular frame arranged at the front end of the door frame, a door body hinged to one side of the door frame, a plurality of pressing devices arranged on the rectangular frame and used for pressing the door body on the rectangular frame, and an observation window arranged on the door body. The safety door structure provides a preset rapid channel for the bottom of the furnace body. When extreme working conditions such as molten crucible liquid leakage or cooling system water leakage occur, the bottom safety door can be quickly opened to drain water.

Description

Technical Field

[0001] This utility model relates to the field of rapid condensing continuous furnace technology, and in particular to a safety door for a vacuum rapid condensing continuous furnace. Background Technology

[0002] As a precision metallurgical equipment, vacuum rapid solidification continuous furnaces accumulate impurities such as metal oxides during long-term operation. Traditional cleaning requires opening the furnace door, which wastes time and manpower. Furthermore, extreme situations such as crucible leakage and furnace leakage may occur during the smelting process. If not handled properly, or if the leakage is severe, it may cause steam or hydrogen explosions, resulting in safety accidents. Traditional smelting furnaces usually lack dedicated maintenance passages and safety door structures at the bottom. Routine maintenance and cleaning require opening the furnace door to enter the bottom, which is very inconvenient. If leakage occurs, there is no drainage at the bottom, causing the leaked liquid to accumulate and be difficult to drain quickly. It is necessary to use a pumping device to remove the water from the bottom, which is troublesome. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a safety door for a vacuum rapid condensation continuous furnace.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a safety door for a vacuum rapid condensation continuous furnace, including a door frame set at the bottom of the continuous furnace, an inspection port located inside the door frame at the bottom of the continuous furnace, a rectangular frame at the front end of the door frame, and a door body. One side of the door body is hinged to the door frame, and multiple pressing devices are also provided on the rectangular frame. The pressing devices are used to press the door body onto the rectangular frame, and an observation window is also provided on the door body.

[0005] Furthermore, the pressing device includes a support plate disposed on a rectangular frame and a rotary pressing cylinder disposed on the support plate, wherein the upper end of the piston rod of the rotary pressing cylinder is connected to a pressing plate for pressing the door body.

[0006] Furthermore, the door frame is also equipped with a support plate that is connected to the support plate.

[0007] Furthermore, the number of the clamping devices is three.

[0008] Furthermore, the door is also equipped with a handle.

[0009] Furthermore, the door body is provided with a connecting plate, and the door frame is provided with a connecting bracket. The connecting plate is hinged to the connecting bracket by a pin.

[0010] Furthermore, a sealing groove is provided on the side of the rectangular frame facing the door body. The sealing groove is rectangular and a sealing ring is provided inside the sealing groove.

[0011] The beneficial effects of this application are as follows: 1. By setting a safety door structure (door frame, door body) with an inspection port at the bottom of the furnace body, the traditional method of having to enter the bottom through the top furnace door is completely changed. Operators can directly clean impurities inside the furnace, inspect equipment, and perform routine maintenance through the bottom safety door, significantly shortening operation time, reducing manual labor intensity, and avoiding the safety risks of personnel entering small, confined spaces, thus effectively improving equipment utilization.

[0012] 2. The safety door structure provides a pre-set quick access channel at the bottom of the furnace. In extreme situations such as leakage from the molten crucible or the cooling system, the bottom safety door can be quickly opened, allowing for rapid observation and emergency handling of the leaked material (accumulated water) through the observation window. This design effectively solves the problems of material accumulation and drainage difficulties caused by the lack of a bottom channel in traditional structures, greatly shortening the emergency response time.

[0013] 3. By incorporating multiple clamping devices and a rectangular sealing groove and sealing ring structure, a high level of sealing performance is ensured when the door is closed. This effectively prevents contact between the high-temperature environment inside the furnace and the outside air. Even in the presence of high-temperature metal or potentially flammable gases inside the furnace, it strictly prevents air from seeping into the furnace and causing deflagration or explosion, significantly improving the inherent safety level of the equipment operation.

[0014] 4. The observation window allows operators to monitor the condition of the bottom of the furnace in real time (such as the degree of impurity accumulation and whether there are signs of early leakage) without opening the door, enabling preventive maintenance and early warning of leaks, and further reducing the probability of sudden accidents. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the pressing device of this utility model.

[0017] Illustration markings: 1. Door frame, 11. Connecting frame, 2. Rectangular frame, 3. Door body, 31. Connecting plate, 32. Pin, 4. Support plate, 5. Support plate, 7. Observation window, 8. Rotary pressing cylinder, 81. Pressing plate. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] Please see Figure 1-2 This utility model provides a safety door for a vacuum rapid condensation continuous furnace, including a door frame 1 set at the bottom of the continuous furnace, an inspection port located inside the door frame 1 at the bottom of the continuous furnace, a rectangular frame 2 at the front end of the door frame 1, and a door body 3. One side of the door body 3 is hinged to the door frame 1. The rectangular frame 2 is also provided with multiple pressing devices for pressing the door body 3 onto the rectangular frame 2. The door body 3 is also provided with an observation window 7, which is made of quartz glass.

[0020] The pressing device includes a support plate 5 set on the rectangular frame 2 and a rotary pressing cylinder 8 set on the support plate 5. The upper end of the piston rod of the rotary pressing cylinder 8 is connected to a pressing plate 81 used to press the door body 3.

[0021] The rotary clamping cylinder 8 is used to control the rotation and lifting motion of the clamping plate 81. In the initial non-clamping state, the clamping plate 81 is located on the side of the door body 3 and remains in non-contact with the door body 3 to avoid interfering with the normal movement of the door body 3. It should be noted that the parts not described in detail in this application are all prior art.

[0022] When it is necessary to press the door body 3, the rotary pressing cylinder 8 first drives its piston rod and pressing plate 81 to rotate around the piston rod's own axis, and then immediately performs an axial upward movement. This combined action moves the pressing plate 81 from its initial side position to the area directly above the door body 3. After completing the rotational positioning, the rotary pressing cylinder 8 drives its piston rod and pressing plate 81 to perform a downward movement along the piston rod's axis, thus pressing the pressing plate 81 against the door body 3. The specific working principle of the rotary pressing cylinder 8 is prior art and will not be described in detail here.

[0023] The door frame 1 is also equipped with a support plate 4 connected to the support plate 5, and the support plate 4 is welded to the door frame 1. The support plate 4 enhances the installation strength of the support plate 5 and prevents deformation during clamping. There are three clamping devices. Two of the three clamping devices are located on one side of the door body 3, and the third clamping device is located on the other side of the door body 3. This ensures that the sealing surfaces of the door body 3 and the rectangular frame 2 are subjected to balanced force, resulting in a more reliable sealing effect.

[0024] Specifically, the door body 3 is provided with a connecting plate 31, and the door frame 1 is provided with a connecting bracket 11. The connecting plate 31 is hinged to the connecting bracket 11 by a pin 32. The rectangular frame 2 is provided with a sealing groove on the side facing the door body 3. The sealing groove is rectangular and a sealing ring is provided inside the sealing groove.

[0025] Of course, this utility model is not limited to the embodiments described above. Several other embodiments based on the design concept of this utility model are also provided below.

[0026] For example, in other embodiments, unlike the embodiments described above, the door body 3 is also provided with a handle.

[0027] The working principle of this application is as follows: The door body 3 is manually pushed to rotate around the pin 32 until the door body 3 fits against the rectangular frame 2 and the sealing ring initially contacts. The rotary pressing cylinder 8 is activated, and the piston rod of the rotary pressing cylinder 8 drives the pressing plate 81 to press against the surface of the door body 3. The three cylinders act synchronously, so that the door body 3 evenly presses the sealing ring to achieve a seal.

[0028] The observation window 7 allows for continuous monitoring of the bottom of the furnace. Any extreme situations, such as water or liquid leakage, can be detected and addressed promptly. If a water leak is detected, the piston rod of the rotating clamping cylinder 8 is controlled to move the clamping plate 81 away from the door 3, releasing the clamping force on the door 3. Then, the safety door is opened to drain the water.

[0029] When maintenance is required, the piston rod of the rotary clamping cylinder 8 is controlled to move the clamping plate 81 away from the door body 3, releasing the clamping force on the door body 3. Then the safety door is opened, and workers can enter the furnace for maintenance and cleaning.

[0030] In addition to its functions as a drainage and maintenance access door, the safety door of this application can also be used for explosion protection. When the vacuum furnace is not in operation, the rotary clamping cylinder 8 automatically locks to ensure the door is closed. When the vacuum furnace is operating normally (under normal negative pressure), the rotary clamping cylinder 8 automatically disengages, and the internal negative pressure ensures the safety door remains closed, guaranteeing vacuum sealing. If the vacuum furnace suddenly leaks water or explodes due to other reasons, the sudden positive pressure inside will force the safety door open, effectively releasing the positive pressure and protecting other components (top cover, front door) from being blown away or blown open, thus preventing secondary disasters. Furthermore, the opening of the safety door will also quickly drain any leaking water, preventing a series of explosions.

[0031] It should be noted that the above embodiments are only used to illustrate the present utility model, but the present utility model is not limited to the above embodiments. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A vacuum rapid solidification continuous furnace safety door characterized by, It includes a door frame (1) set at the bottom of the continuous furnace, an inspection port located inside the door frame (1) at the bottom of the continuous furnace, a rectangular frame (2) at the front end of the door frame (1), and a door body (3). One side of the door body (3) is hinged to the door frame (1). Multiple clamping devices are also provided on the rectangular frame (2). The clamping devices are used to clamp the door body (3) onto the rectangular frame (2). An observation window (7) is also provided on the door body (3).

2. A vacuum rapid solidification continuous furnace door according to claim 1, wherein, The pressing device includes a support plate (5) set on a rectangular frame (2) and a rotary pressing cylinder (8) set on the support plate (5). The upper end of the piston rod of the rotary pressing cylinder (8) is connected to a pressing plate (81) used to press the door body (3).

3. A vacuum rapid solidification continuous furnace door according to claim 2, wherein, The door frame (1) is also provided with a support plate (4) connected to the support plate (5).

4. A vacuum rapid solidification continuous furnace door according to claim 2, wherein The number of clamping devices is three.

5. A safety door for a vacuum rapid condensation continuous furnace according to claim 1, characterized in that, The door (3) is also equipped with a handle.

6. A safety door for a vacuum rapid condensation continuous furnace according to claim 1, characterized in that, The door body (3) is provided with a connecting plate (31), and the door frame (1) is provided with a connecting frame (11). The connecting plate (31) is hinged to the connecting frame (11) through a pin (32).

7. A safety door for a vacuum rapid condensing continuous furnace according to claim 1, characterized in that, The rectangular frame (2) has a sealing groove on the side facing the door (3). The sealing groove is rectangular and has a sealing ring inside.

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