Furnace door structure of holding furnace

Abstract

The utility model relates to the technical field of aluminum smelting holding furnaces, and discloses a holding furnace door structure which comprises a furnace door body, a door shaft is fixedly connected to the furnace door body, the furnace door body is hinged to a base plate through the door shaft, a shaft seat is arranged on the base plate corresponding to the door shaft, and the door shaft is rotationally connected with the shaft seat. The furnace door further comprises a turnover mechanism used for automatically opening and closing the furnace door body, the turnover mechanism comprises a telescopic device arranged corresponding to the door shaft, the bottom end of the telescopic device is connected with the furnace opening, and the telescopic end of the telescopic device is connected with the door shaft through a crank arm. According to the utility model, the operation mode of manually opening and closing the furnace door in a close range is omitted, the labor intensity of operators is reduced, the working efficiency is improved, the discomfort caused by high temperature is relieved, and the scalding risk is avoided; meanwhile, the situation that the furnace door is damaged due to manual violent operation is avoided, and the maintenance cost of the furnace door is reduced. Due to the arrangement of the locking mechanism, operation is further facilitated, the locking firmness of the furnace door is guaranteed, and the heat preservation performance of the furnace body is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum smelting insulation furnaces, in particular to a door structure of an insulation furnace. Background Art

[0002] During the use of aluminum smelting and holding furnace, it is necessary to periodically open the furnace door to add aluminum liquid, and at the same time, remove the aluminum liquid in the furnace through the furnace door. The current furnace door opening and closing operations are usually completed manually. During operation, the operator manually opens the furnace door, completes the aluminum liquid filling and slag removal operations, and then manually locks the furnace door. Due to the high temperature in the holding furnace mouth area, the operators are in a harsh working environment of high temperature and high heat throughout the process, which can easily cause physical discomfort and the risk of scalding; manual furnace door opening and closing is time-consuming and labor-intensive, with high labor intensity, and manual operation is inconvenient. The furnace door is prone to loose closing due to insufficient locking force, resulting in air leakage, increased heat loss, and increased production costs; in a high temperature environment, in order to save time and ensure locking force, operators often operate violently, the furnace door is easily damaged, the maintenance cost is high, and the service life is short.

[0003] Based on this, developing a heat preservation furnace door structure that can realize automatic opening, closing and locking and apply it to actual production is an urgent problem to be solved. Utility Model Content

[0004] The purpose of the utility model is to provide a heat preservation furnace door structure in view of the above problems, so as to solve the problems of high labor intensity, scalding risk and inconvenient operation during the manual opening and closing of the furnace door of the existing aluminum smelting furnace, and easy to close the problem. At the same time, it solves the problem that the existing furnace door is easy to be damaged, the maintenance cost is high, and the service life is short.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A furnace door structure of an insulation furnace comprises a furnace door body, to which a door shaft is fixedly connected, the furnace door body is hinged on a base plate through the door shaft, an axle seat is arranged on the base plate corresponding to the door shaft, and the door shaft is rotatably connected to the axle seat; it also comprises a flipping mechanism for automatic opening and closing of the furnace door body, the flipping mechanism comprises a telescopic device arranged corresponding to the door shaft, the bottom end of the telescopic device is connected to the furnace mouth, the telescopic end of the telescopic device is connected to the door shaft through a curved arm, one end of the curved arm is hinged to the telescopic end of the telescopic device, and the other end of the curved arm is fixedly connected to the door shaft.

[0007] Preferably, the telescopic device is an oil cylinder, a gas cylinder or an electric cylinder, more preferably an oil cylinder.

[0008] Preferably, it also includes a locking mechanism for locking the furnace door body, the locking mechanism includes a locking bolt arranged on a base plate, the locking bolt is in a long block structure, the back side of the base plate corresponding to the locking bolt is fixedly connected with a rotating cylinder, the rotating shaft of the rotating cylinder passes through the base plate and extends out of the upper end surface of the base plate, the locking bolt is fixedly connected to the rotating shaft, and the furnace door body has a long locking groove corresponding to the locking bolt, the width of the locking groove is greater than the width of the locking bolt, and the width of the locking groove is smaller than the length of the locking bolt.

[0009] Preferably, the locking mechanism is configured in multiple groups on the furnace door body.

[0010] Preferably, a limit stop is provided on the base plate corresponding to the furnace door body to prevent the furnace door body from over-turning.

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

[0012] The utility model is provided with a flipping mechanism, which drives the crank arm to rotate the door shaft to a certain angle through the telescopic action of the telescopic device, thereby driving the furnace door body to form a flipping action of opening or closing. The operation mode of manually opening and closing the furnace door at a close distance is eliminated. The operator can quickly complete the furnace door opening and closing operation by manipulating the telescopic device, which reduces the labor intensity of the operator, improves the working efficiency, alleviates the discomfort caused by high temperature, and avoids the risk of scalding; at the same time, the automatic opening and closing of the furnace door is set to avoid damage to the furnace door caused by violent human operation, and reduces the maintenance cost of the furnace door. The setting of the locking mechanism makes it possible to lock or release the furnace door body by controlling the rotation of the rotating oil cylinder, which further facilitates the operation, ensures the firmness and reliability of the furnace door locking, and ensures the thermal insulation performance of the furnace body. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0015] Figure 2 It is a schematic diagram of the planar structure of the utility model in a closed state.

[0016] In the figure: 1--furnace door body; 11--door shaft; 2--base plate; 21--axle seat; 3--turning mechanism; 31--telescopic device; 32--crank arm; 4--locking mechanism; 41--locking bolt; 42--rotating cylinder; 43--locking groove; 5--limit stop; 6--furnace mouth. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0018] like Figure 1-2 As shown, a heat preservation furnace door structure includes a furnace door body 1, a door shaft 11 is fixedly connected to the furnace door body 1, the furnace door body 1 is hinged on a base plate 2 through the door shaft 11, a shaft seat 21 is provided on the base plate 2 corresponding to the door shaft 11, and the door shaft 11 is rotatably connected in the shaft seat 21. When in use, the furnace door body 1 is connected to the furnace mouth 6 of the heat preservation furnace through the base plate 2, and the operator turns the furnace door body 1 at a certain angle with the door shaft 11 as the axis by pulling the furnace door body 1, thereby completing the opening or closing action of the furnace door body 1.

[0019] In order to improve the many problems existing in the traditional manual opening and closing of the furnace door, the present embodiment also includes a flip mechanism 3 for automatically opening and closing the furnace door body 1. The flip mechanism 3 includes a telescopic device 31 arranged corresponding to the door shaft 11, the bottom end of the telescopic device 31 is connected to the furnace mouth 6, and the telescopic end of the telescopic device 31 is connected to the door shaft 11 through a curved arm 32. One end of the curved arm 32 is hinged to the telescopic end of the telescopic device 31, and the other end of the curved arm 32 is fixedly connected to the door shaft 11. When in use, the telescopic action of the telescopic device 31 drives the curved arm 32 to make the door shaft 11 rotate at a certain angle, thereby driving the furnace door body 1 to form a flip action of opening or closing.

[0020] This embodiment eliminates the need for manual operation of opening and closing the furnace door at a close distance. The operator can quickly complete the furnace door opening and closing operation by manipulating the telescopic device 31, thereby reducing the labor intensity of the operator, alleviating the discomfort caused by high temperature, and avoiding the risk of scalding. At the same time, the automatic opening and closing furnace door setting avoids damage to the furnace door caused by human violent operation, and reduces the maintenance cost of the furnace door.

[0021] The telescopic device 31 can be a conventional configuration that can realize the telescopic function, such as an oil cylinder, a gas cylinder, and an electric cylinder. Considering the traction force requirement when the furnace door body 1 is opened, the telescopic device 31 in this embodiment is preferably an oil cylinder, which also has the obvious advantages of high temperature resistance, strong operation stability, and easy maintenance, which can effectively extend the maintenance cycle and service life.

[0022] As a preferred embodiment, the furnace door body 1 also includes a locking mechanism 4 for locking the furnace door body 1, and the locking mechanism 4 includes a locking bolt 41 arranged on the base plate 2, and the locking bolt 41 is in a long block structure. A rotating cylinder 42 is fixedly connected to the back of the base plate 2 corresponding to the locking bolt 41, and the rotating shaft of the rotating cylinder 42 passes through the base plate 2 and extends out of the upper end surface of the base plate 2, and the locking bolt 41 is fixedly connected to the rotating shaft. The furnace door body 1 has a long strip locking groove 43 corresponding to the locking bolt 41, and the width of the locking groove 43 is greater than the width of the locking bolt 41, and the width of the locking groove 43 is less than the length of the locking bolt 41, so that the locking bolt 41 can smoothly pass through the locking groove 43, and after the locking bolt 41 rotates a certain angle, it can be fixed to the outside of the locking groove 43, forming a locking action on the wheel body.

[0023] When the furnace door needs to be closed, the rotary cylinder 42 controls the locking bolt 41 to be arranged in the longitudinal direction of the corresponding locking groove 43, so that the locking bolt 41 smoothly passes through the locking groove 43 and extends out of the upper end surface of the furnace door body 1. The rotating shaft of the rotary cylinder 42 drives the locking bolt 41 to rotate to a length direction perpendicular to the locking groove 43, thereby completing the locking of the furnace door body 1. This embodiment can realize the locking or loosening operation of the furnace door body 1 by controlling the rotation of the rotary cylinder 42, further facilitating the operation, ensuring the firmness and reliability of the furnace door locking, and ensuring the thermal insulation performance of the furnace body.

[0024] Preferably, the locking mechanisms 4 are arranged in multiple groups on the furnace door body 1 , and the multiple locking mechanisms 4 simultaneously perform locking actions on the furnace door body 1 , further ensuring the reliability of locking the furnace door body 1 .

[0025] Preferably, if Figure 1 As shown, a limit stop 5 is provided on the base plate 2 corresponding to the furnace door body 1. When the furnace door body 1 is opened and flipped to the limit position, it will be supported on the limit stop 5 to prevent the furnace door body 1 from over-flipping.

[0026] The above disclosure is only a specific embodiment of the present patent, but the present patent is not limited thereto. For ordinary technicians in this field, without departing from the principle of the present invention, the deformation made should be deemed to belong to the protection of the present invention.

Claims

1. A heat preservation furnace door structure, characterized in that: The invention comprises a furnace door body (1), a door shaft (11) being fixedly connected to the furnace door body (1), the furnace door body (1) being hinged to a base plate (2) via the door shaft (11), a shaft seat (21) being arranged on the base plate (2) corresponding to the door shaft (11), the door shaft (11) being rotatably connected to the shaft seat (21); and a flip mechanism (3) for automatically opening and closing the furnace door body (1), the flip mechanism (3) comprising a telescopic device (31) arranged corresponding to the door shaft (11), the bottom end of the telescopic device (31) being connected to a furnace opening (6), the telescopic end of the telescopic device (31) being connected to the door shaft (11) via a curved arm (32), one end of the curved arm (32) being hinged to the telescopic end of the telescopic device (31), and the other end of the curved arm (32) being fixedly connected to the door shaft (11).

2. The insulation furnace door structure according to claim 1, characterized in that: The telescopic device (31) is selected from an oil cylinder, a gas cylinder or an electric cylinder.

3. The insulation furnace door structure according to claim 1, characterized in that: The invention also comprises a locking mechanism (4) for locking the furnace door body (1), the locking mechanism (4) comprising a locking bolt (41) arranged on the base plate (2), the locking bolt (41) being in the form of a long block structure, a rotating cylinder (42) being fixedly connected to the back side of the base plate (2) corresponding to the locking bolt (41), the rotating shaft of the rotating cylinder (42) passing through the base plate (2) and extending out of the upper end surface of the base plate (2), the locking bolt (41) being fixedly connected to the rotating shaft, and a long locking groove (43) being provided at the furnace door body (1) corresponding to the locking bolt (41), the width of the locking groove (43) being greater than the width of the locking bolt (41), and the width of the locking groove (43) being less than the length of the locking bolt (41).

4. The insulation furnace door structure according to claim 3, characterized in that: The locking mechanisms (4) are arranged in multiple groups on the furnace door body (1).

5. The insulation furnace door structure according to claim 1, characterized in that: A limit stopper (5) is provided on the base plate (2) corresponding to the furnace door body (1) to prevent the furnace door body (1) from over-turning.

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