Door opening structure of gas holding furnace

Abstract

The door opening structure comprises a furnace body, a lifting furnace door is arranged on the outer surface of the furnace body, a cavity is formed in the inner side surface of the lifting furnace door, a closing door is connected to the inner side surface of the cavity in a sliding mode, and the closing door is supported by a heat preservation and insulation ceramic plate. A positioning groove is formed in an opening of the furnace body, the outer surface of the closing door is clamped to the inner side surface of the positioning groove, a hydraulic cylinder is fixedly connected to the outer surface of one side of the lifting furnace door and fixedly connected to the outer surface of the side face of the lifting furnace door, and the end face of a hydraulic rod of the hydraulic cylinder is fixedly connected to the inner side surface of the lower end of the furnace body. The lifting furnace door structure is adopted and can be automatically lifted and opened, the heat preservation structure adopts the furnace door of a cavity structure, the closed door sealing cover which is telescopically closed is arranged, the sealing performance is high after closing, a heat preservation interlayer structure is formed after closing, the heat preservation performance is improved, the opening occupied space is reduced, use is flexible, and movement of goods outside the furnace body is not affected.

Description

TECHNICAL FIELD

[0001] The utility model relates to the door opening structure field of gas heat preservation furnace more specifically, relate to a door opening structure of gas heat preservation furnace. BACKGROUND

[0002] The main task of heat preservation furnace is to collect and store the aluminum liquid sent from smelting furnace, and some refining or alloying treatment is carried out on the aluminum liquid according to metallurgical requirements, in addition, the temperature of liquid aluminum also needs to be controlled to keep it in a small temperature variation range.

[0003] The conventional heat preservation furnace door has the following disadvantages: the installation space of the door is limited, the double-arm door cannot be normally installed; the opening and closing angle of the door is limited, and the high-temperature door is easy to scald workers during work; after the door is closed, a gap is generated on one side of the door due to the fixed hinge on one side, which causes the door to be not tightly closed, resulting in fire leakage.

[0004] In the prior art, such as the utility model with the authorization announcement number CN218238383U, the utility model relates to the technical field of gas heat preservation furnace, and specifically relates to a door opening structure of gas heat preservation furnace, and the technical scheme is: a furnace body and a door are included, a feeding port is arranged at the front end of the furnace body, and a door opening mechanism for controlling the opening and closing of the door is further included; the door opening mechanism includes a positioning assembly, a rotating assembly, an installation assembly, and a locking assembly; the positioning assembly is arranged on the furnace body; the installation assembly is connected with the positioning assembly through the rotating assembly; the door is arranged on the installation assembly; and the door is locked on the furnace body through the locking assembly. The utility model has the beneficial effects that: the door is arranged in a single-arm mode, the installation of the door is easy in a small space and is not limited by the installation space; after the door is opened, the door can be pushed to the other side along the axis, the scalding problem caused by the accidental touch of the door by workers during work is solved, the door can be tightly pressed on both sides, the fire leakage problem of the door is solved, and the service life of the door is improved.

[0005] The single-arm shaft overturning structure has high thickness and large weight, the single-arm overturning structure has poor supporting force, is easy to deform during use, has poor heat preservation performance, has a large opening stroke, needs a large opening space, occupies a large space after being opened, affects the transfer of goods around the furnace body, and is inconvenient to use. UTILITY MODEL CONTENTS

[0006] In view of the problems in the prior art, the utility model aims to provide a door opening structure of a gas heat preservation furnace, which adopts a lifting type door structure and can be automatically lifted and opened, the heat preservation structure adopts a cavity structure door, a retractable closing door cover is arranged inside, the closing door cover has high sealing performance after being closed, forms a heat preservation sandwich structure after being closed, improves the heat preservation performance, reduces the occupied space after being opened, is flexible to use, and does not affect the movement of goods outside the furnace body.

[0007] To solve the above problems, the utility model adopts the following technical scheme.

[0008] A door opening structure of gas heat preservation furnace, including furnace body, the outer surface of furnace body is provided with lifting furnace door, the inner side surface of lifting furnace door is provided with cavity, the inner side surface of cavity is connected with closing door, closing door adopts heat preservation heat insulation ceramic plate material support, the opening of furnace body is provided with positioning groove, the outer surface of closing door is connected in the inner side surface of positioning groove, one side outer surface of lifting furnace door is fixedly connected with hydraulic cylinder, the side outer surface of hydraulic cylinder is fixedly connected in lifting furnace door, the hydraulic rod end surface of hydraulic cylinder is fixedly connected in the lower end inner side surface of furnace body, the outer surface of closing door is fixedly connected with arcuate plate, the inner side surface of arcuate plate is connected in the inner side surface of lifting furnace door, the inner side surface of arcuate plate is connected with threaded rod through screw thread, the inner end of threaded rod is inserted in the inner side surface of lifting furnace door, the outer surface of threaded rod is fixed with positioning ring protruding, positioning ring protruding is attached to the inner side surface of lifting furnace door, adopts lifting type furnace door structure, can automatically lift and open, and the heat preservation structure adopts the furnace door of cavity structure, built-in telescopic closing closing door cover, its sealing property is strong after closing, forms heat preservation interlayer structure after closing, improves heat preservation performance, reduces the space of opening and occupying, uses flexibly, does not affect the movement of goods outside furnace body.

[0009] Further, the lifting furnace door is attached to the outer end surface of the furnace body, and the lifting furnace door is made of cast iron material.

[0010] Further, the outer end surface of the threaded rod is fixedly connected with a rotating disc, the outer surface of the rotating disc is provided with gripping openings, and the gripping openings are uniformly distributed on the outer surface of the rotating disc.

[0011] Further, the outer side inner end surface of the furnace body is provided with a positioning sliding groove, and the outer side of the furnace door is provided with a positioning protrusion, which is connected to the inner side surface of the positioning sliding groove.

[0012] Further, the inner side surface of the lifting furnace door is provided with a positioning sliding port, and the outer surface of the arcuate plate is connected to the inner side surface of the positioning sliding port of the lifting furnace door.

[0013] Further, the hydraulic rod end surface of the hydraulic cylinder is provided with a flange, which is fixed to the inner side surface of the furnace body.

[0014] Further, the outer surface of the closing door is provided with a chamfered protrusion, which is connected to the inner side surface of the positioning groove.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] (1) the adoption of lifting furnace door structure, can automatically lift open, and the heat preservation structure adopts the furnace door of cavity structure, built-in telescopic closure of the closure door cover, its sealing property is strong after closure, after closure forms the heat preservation sandwich structure, improves the heat preservation performance, reduces the opening occupation space, uses flexibly, does not affect the goods in the furnace body outside movement. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the first schematic view of the overall structure of the utility model;

[0018] Figure 2 It is the second schematic view of the overall structure of the utility model;

[0019] Figure 3 It is the third schematic view of the overall structure of the utility model;

[0020] Figure 4 It is the overall structure section view of the utility model;

[0021] Figure 5 It is the closure door schematic view of the utility model.

[0022] Mark explanation in drawing:

[0023] 1 furnace body, 2 lifting furnace door, 3 cavity, 4 closure door, 5 positioning groove, 6 hydraulic cylinder, 7 arched plate, 8 threaded rod, 9 positioning ring protrusion, 10 rotary disc, 11 grab mouth, 100 positioning sliding slot, 200 positioning protrusion, 60 flange. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of protection of the utility model.

[0025] Embodiment 1

[0026] Please refer to Figures 1-5The utility model provides a kind of gas heat preservation furnace's door opening structure, including furnace body 1, the outer surface of furnace body 1 is provided with lifting furnace door 2, the inner side surface of lifting furnace door 2 is provided with cavity 3, sliding connection is established in the inner side surface of cavity 3 with closure door 4, closure door 4 is supported using heat preservation heat insulation ceramic plate material, the opening of furnace body 1 is provided with positioning recess 5, the outer surface of closure door 4 is clamped in the inner side surface of positioning recess 5, one side outer surface of lifting furnace door 2 is fixedly connected with hydraulic cylinder 6, hydraulic cylinder 6 is fixedly connected in the side outer surface of lifting furnace door 2, the hydraulic rod end surface of hydraulic cylinder 6 is fixedly connected in the lower end inner side surface of furnace body 1, the outer surface of closure door 4 is fixedly connected with arch plate 7, the outer surface of arch plate 7 is slidingly connected in the inner side surface of lifting furnace door 2, the inner side surface of arch plate 7 is connected with threaded rod 8 by screw thread, the inner end of threaded rod 8 is inserted in the inner side surface of lifting furnace door 2, the outer surface of threaded rod 8 is fixed with positioning ring protrusion 9, and positioning ring protrusion 9 is attached to the inner side surface of lifting furnace door 2;With lifting furnace door structure, it can be automatically lifted and opened, and the furnace door with cavity structure is used for heat preservation structure, the closure door is covered with built-in telescopic closure, it is strong after closure Sealing, after closure, form heat preservation sandwich structure, improve heat preservation performance, reduce the space occupied by opening, flexible to use, do not affect the goods to move outside the furnace body;

[0027] Lifting furnace door 2 is attached to the outer end surface of furnace body 1, and lifting furnace door 2 is made of cast iron material;

[0028] The outer end surface of threaded rod 8 is fixedly connected with rotary disc 10, the outer surface of rotary disc 10 is provided with gripping mouth 11, and gripping mouth 11 is evenly distributed on the outer surface of a circle of rotary disc 10;It is convenient to hold rotary disc 10 along gripping mouth 11, which can rotate rotary disc 10, rotate threaded rod 8, and facilitate the movement of closure door 4 to close or open;

[0029] The outer side inner end surface of furnace body 1 is provided with positioning sliding groove 100, and the outer side of furnace door 2 is provided with positioning protrusion 200, which is clamped in the inner side surface of positioning sliding groove 100 (when lifting and sliding, the positioning protrusion 200 can slide in the positioning sliding groove 100, and can be positioned and supported when lifting and sliding, and the structure is stable);

[0030] The inner side surface of lifting furnace door 2 is provided with positioning sliding mouth, and the outer surface of arch plate 7 is slidingly connected to the inner side surface of the positioning sliding mouth of lifting furnace door 2;

[0031] The hydraulic rod end surface of hydraulic cylinder 6 is provided with flange 60, which is fixed to the inner side surface of furnace body 1 through flange 60;Stable installation;The outer surface of closure door 4 is provided with chamfer protrusion, which is clamped into the inner side surface of positioning recess 5;It can be closed and sealed, improve sealing performance, and improve heat preservation performance;

[0032] When in use, the inner side surface of the lifting furnace door 2 is provided with a cavity 3, the inner side surface of the cavity 3 is slidingly connected with a closing door 4, the closing door 4 is supported by a heat-insulating ceramic plate, the opening of the furnace body 1 is provided with a positioning groove 5, the outer surface of the closing door 4 is clamped to the inner side surface of the positioning groove 5, so as to facilitate the closing and sealing, and the cavity 3 structure can be used for blocking and sealing, and the heat-insulating performance is improved.

[0033] When in use, the outer surface of one side of the lifting furnace door 2 is fixedly connected with a hydraulic cylinder 6, the hydraulic cylinder 6 is fixedly connected to the outer surface of the side of the lifting furnace door 2, the hydraulic rod end surface of the hydraulic cylinder 6 is fixedly connected to the inner side surface of the lower end of the furnace body 1, when in use, the lifting furnace door 2 can be lifted by the hydraulic cylinder 6, when in use, the outer surface of the closing door 4 is fixedly connected with an arched plate 7, the outer surface of the arched plate 7 is slidingly connected to the inner side surface of the lifting furnace door 2, the inner side surface of the arched plate 7 is threadedly connected with a threaded rod 8, the inner end of the threaded rod 8 penetrates the inner side surface of the lifting furnace door 2, the outer surface of the threaded rod 8 is fixedly connected with a positioning ring protrusion 9, the positioning ring protrusion 9 is attached to the inner side surface of the lifting furnace door 2; the threaded rod 8 can be rotated, the positioning ring protrusion 9 can be rotated, the arched plate 7 can be moved, the closing door 4 can be closed, moved and opened, the opening of the closing door 4 can be controlled, after being opened, the hydraulic cylinder 6 is pushed downward to be lifted, the lifting furnace door 2 can be lifted, the furnace door can be opened upward, it does not occupy other space, the sliding structure is stable, is not easy to be deformed, and the heat-insulating performance is not affected.

[0034] The above is only a preferred specific embodiment of the present application; however, the protection scope of the present application is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and improvement concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A door opening structure of a gas-fired holding furnace comprising a furnace body (1), characterized in that: The outer surface of the furnace body (1) is provided with a lifting furnace door (2), the inner surface of the lifting furnace door (2) is provided with a cavity (3), the cavity (3) is slidably connected with a closing door (4), the closing door (4) is supported by a heat-insulating ceramic plate, the opening of the furnace body (1) is provided with a positioning groove (5), the outer surface of the closing door (4) is clamped on the inner surface of the positioning groove (5), one side of the outer surface of the lifting furnace door (2) is fixedly connected with a hydraulic cylinder (6), the hydraulic cylinder (6) is fixedly connected to the side surface of the lifting furnace door (2), the end surface of the hydraulic cylinder (6) is fixedly connected to the inner surface of the lower end of the furnace body (1), the outer surface of the closing door (4) is fixedly connected with an arched plate (7), the outer surface of the arched plate (7) is slidably connected to the inner surface of the lifting furnace door (2), the inner surface of the arched plate (7) is threadedly connected with a threaded rod (8), the inner end of the threaded rod (8) penetrates the inner surface of the lifting furnace door (2), and the outer surface of the threaded rod (8) is fixedly connected with a positioning ring protrusion (9) which is attached to the inner surface of the lifting furnace door (2).

2. The door opening structure of a gas-fired holding furnace according to claim 1, characterized in that: The lifting furnace door (2) is attached to the outer end surface of the furnace body (1), and the lifting furnace door (2) is made of cast iron.

3. The door opening structure of a gas-fired holding furnace according to claim 1, characterized in that: The outer end surface of the threaded rod (8) is fixedly connected with a rotating disc (10), the outer surface of the rotating disc (10) is provided with a gripping opening (11), and the gripping openings (11) are uniformly distributed on the outer surface of the rotating disc (10).

4. The door opening structure of a gas-fired holding furnace according to claim 1, characterized in that: The inner end surface of the outer side of the furnace body (1) is provided with a positioning sliding groove (100), and the outer side of the furnace door (2) is provided with a positioning protrusion (200) which is clamped on the inner surface of the positioning sliding groove (100).

5. The door opening structure of a gas-fired holding furnace according to claim 1, characterized in that: The inner surface of the lifting furnace door (2) is provided with a positioning sliding opening, and the outer surface of the arched plate (7) is slidably connected to the inner surface of the positioning sliding opening of the lifting furnace door (2).

6. The door opening structure of a gas-fired holding furnace according to claim 1, characterized in that: The end surface of the hydraulic cylinder (6) is provided with a flange (60) which is fixed to the inner surface of the furnace body (1).

7. The door opening structure of a gas-fired holding furnace according to claim 1, characterized in that: The outer surface of the closing door (4) is provided with a chamfered protrusion which is clamped into the inner surface of the positioning groove (5).

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