Exhaust gas shutter air inlet door cover plate bracket

Abstract

The utility model belongs to the technical field of coke oven heating adjusting systems, and particularly relates to a cover plate bracket for an air inlet door of a waste gas shutter, which is used for an air inlet frame, and is characterized in that a supporting plate is arranged on the inner side of a mounting frame, so that the mounting frame is clamped in an air inlet; the supporting plate is used for replacing an original supporting table structure to support the air door cover plate. The supporting table is simple in structure and ingenious in conception, the supporting table is in split connection with the waste gas opening and closing device, after an original supporting table is damaged, manufacturing of an air inlet door cover plate bracket of the waste gas opening and closing device can be transferred to a movable fire area, post personnel can install and replace the supporting table conveniently, and cost is saved. The problems that an original supporting table is prone to being damaged due to material performance and needs to be maintained by professionals after being damaged are solved.

Description

Technical Field

[0001] This utility model belongs to the technical field of coke oven heating and regulating systems, and is a waste gas switch inlet door cover bracket. Background Technology

[0002] In coke oven heating, the air-to-gas ratio is a crucial parameter, controlled by various fixed or adjustable devices. The opening degree of the air inlet of the exhaust gas switch is one of the important measures for air control. Figure 1 As shown, the exhaust gas switch has an air inlet 200 inside the air inlet frame 100. A support platform 101 is provided on the side wall of the air inlet 200. The damper cover 300 is placed directly on the support platform 101. The opening of the air inlet is controlled by replacing the damper cover 300 with different sizes. The existing damper cover 300 is fixed by the support platform 101 to prevent it from falling off. However, since the support platform 101 is made of cast iron and is integrally cast and processed with the exhaust gas switch, it is relatively thin. Located at the edge of the air inlet, it is easily corroded by air circulation, rainwater, high temperature, and condensate after gas combustion. It cannot support the damper cover, causing the damper cover to fall off and causing changes in the excess air coefficient, which affects the coke oven's heat consumption and high-temperature heating.

[0003] Currently, welding reinforcement is commonly used to address the problem of corrosion on the support platform. However, this method requires a high level of skill from the operators, and the repair results vary depending on the skill level. Furthermore, the operation involves working in a gas area and confined space. The high-temperature environment in the exhaust gas switch area and the operation of equipment such as reversing pose certain safety risks to the operators. In addition, the process from discovery to treatment requires the cooperation of different trades. Issues such as hot work permits and supervision in gas areas result in low work efficiency and high maintenance costs for enterprises. Utility Model Content

[0004] This utility model provides an exhaust gas switch inlet door cover bracket, which aims to solve the problem of complex repair procedures for the oxidation, corrosion and detachment of the door cover bracket. It realizes that after the exhaust gas switch inlet door cover bracket falls off, no open flame is required, and the exhaust gas switch inlet door cover bracket can be directly installed at the air inlet to replace the function of the bracket.

[0005] The technical problem to be solved by this utility model is achieved by the following technical solution: an exhaust gas switch inlet door cover bracket for an inlet frame, wherein an inlet is provided in the inlet frame, including a mounting frame and a bracket.

[0006] A support plate is provided on the inner side of the mounting frame;

[0007] The mounting frame is fitted inside the air inlet;

[0008] The support plate is used to support the damper cover.

[0009] Preferably, two oppositely arranged supporting plates are arranged on the inner wall of the mounting frame, and the supporting plates are arranged along the length direction or the width direction of the mounting frame.

[0010] Preferably, four annularly arranged supporting plates are arranged on the inner wall of the mounting frame.

[0011] Preferably, a part of the supporting table is arranged on the inner wall of the air inlet frame, and a supporting plate flush with the supporting table is arranged on the inner wall of the mounting frame.

[0012] The supporting plate is used for compensating the damaged supporting table part on the inner wall of the air inlet frame. When only a part of the supporting table on the inner wall of the air inlet frame is damaged, the damaged supporting table part can be compensated by the supporting plate, and the workload of cleaning the residual supporting table is reduced.

[0013] Preferably, the mounting frame comprises a clamping frame matched with the inner cavity of the air inlet frame, and the supporting plate is located at the lower end face of the clamping frame.

[0014] Preferably, the mounting frame further comprises a limiting flange arranged at the upper end of the clamping frame, and the limiting flange is overlapped above the air inlet frame, so as to further limit the mounting frame and facilitate the installation of the waste gas on-off device air inlet door cover bracket.

[0015] Preferably, the utility model further comprises a sealing cover matched with the mounting frame.

[0016] The sealing cover is hinged on the air inlet frame. The coke oven gas is exchanged once every 30 minutes, the blast furnace gas is exchanged once every 20 minutes, the airflow is divided into two states of rising and falling, the air inlet is opened to let air in when the airflow rises, the air inlet is closed when the airflow falls, the waste gas enters the flue through the on-off device, the sealing cover plays a sealing role, and cold air is prevented from entering to affect the suction force when the airflow falls.

[0017] Preferably, a sealing slope is arranged on the outer side of the lower end face of the sealing cover, and the sealing slope and the inner edge of the mounting frame are linearly sealed, so as to ensure the sealing property of the air inlet.

[0018] The utility model discloses preferably, the mounting frame and the supporting plate are stainless steel material. The high temperature of descending waste gas is higher, and the material must have certain high temperature resistance, and the mounting frame and the supporting plate are prepared with stainless steel, can bear high temperature, and avoid rust damage in the later use process, effectively reduce the maintenance cost of later period.

[0019] The utility model discloses preferably, the mounting frame is square, and the design of the damper cover plate is convenient, can place the damper cover plate from different directions, and convenient operation.

[0020] Compared with the prior art, the utility model discloses a kind of waste gas opening-closing device air inlet door cover plate bracket, for air inlet frame, by setting supporting plate in mounting frame inside, mounting frame is clamped in air inlet, and wind door cover plate is supported using supporting plate to replace original supporting table structure.

[0021] The utility model discloses simple structure, and clever structure is adopted with waste gas opening-closing device, and original supporting table is damaged, and the manufacture of waste gas opening-closing device air inlet door cover plate bracket can be transferred to movable fire area, post personnel installation is replaced conveniently, solve the problem that original supporting table is damaged due to material performance and the problem that professional personnel needs to maintain after being damaged. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the structure schematic view of air inlet of waste gas opening-closing device corresponding in prior art;

[0023] Figure 2 It is the structure schematic view of waste gas opening-closing device air inlet door cover plate bracket in the utility model embodiment 1;

[0024] Figure 3 It is the assembly process schematic view of waste gas opening-closing device air inlet door cover plate bracket and damaged air inlet in the utility model;

[0025] Figure 4 It is the assembly completed schematic view of waste gas opening-closing device air inlet door cover plate bracket and damaged air inlet in the utility model;

[0026] Figure 5 It is the structure schematic view of damper cover plate for waste gas opening-closing device air inlet door cover plate bracket in the utility model;

[0027] Figure 6 It is the structure schematic view of waste gas opening-closing device air inlet door cover plate bracket in the utility model embodiment 2;

[0028] Figure 7 It is the structure schematic view of waste gas opening-closing device air inlet door cover plate bracket in the utility model embodiment 3;

[0029] Figure 8The utility model discloses a structure diagram of the air inlet door cover plate bracket of the waste gas opening and closing device of embodiment 4.

[0030] In the drawing, 100 air inlet frame, 101 support table, 200 air inlet, 300 air door cover plate.

[0031] 1 installation frame, 2 support plate, 3 sealing cover, 31 sealing slope.

[0032] 11 clamping frame, 12 limiting flange. DETAILED DESCRIPTION

[0033] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings.

[0034] Embodiment 1

[0035] As Figure 2 , Figure 3 , Figure 4 and Figure 5 indicated, an air inlet door cover plate bracket of waste gas opening and closing device is used for air inlet frame 100, the air inlet frame 100 is rectangular, the air inlet frame 100 is provided with air inlet 200 in, including installation frame 1 and support plate 2. Specifically, the installation frame 1 and support plate 2 are stainless steel material, are made through metal sheet, are connected together through the mode of welding. It can be mass-produced according to the standard size of air inlet 200.

[0036] The installation frame 1 is rectangular, preferably square, realizes that air door cover plate 300 can be placed horizontally also can be placed vertically in installation frame 1, and the inside of installation frame 1 is provided with support plate 2.

[0037] The installation frame 1 is clamped in air inlet 200. Specifically, the installation frame 1 includes the clamping frame 11 matched with the size of the inner cavity of the air inlet frame 100, and the support plate 2 is located at the lower end surface of the clamping frame 11.

[0038] The support plate 2 is used to support air door cover plate 300.

[0039] Four support plates 2 are arranged in the form of a ring on the inner wall of the installation frame 1, and the four support plates 2 are connected in the first place. In the embodiment, when the support table 101 on the inner wall of the air inlet frame 100 is all damaged, the position of the support plate 2 is consistent with the position of the original support table, and the remaining support table part is polished before installation to avoid affecting the installation. When the support table 101 on the inner wall of the air inlet frame 100 is partially damaged, the position of the support plate 2 is above the original support table, and the clamping frame 11 is directly clamped in the inner cavity of the air inlet frame 100 above the original support table. The upper end surface of the clamping frame 11 is flush with the upper end surface of the air inlet frame 100.

[0040] AsFigure 5 As shown, the waste gas opening and closing device air inlet door cover plate bracket further comprises a sealing cover 3 matched with the mounting frame 1. The sealing cover 3 is sealingly matched with the mounting frame 1, and specifically, the outer side of the lower end surface of the sealing cover 3 is provided with a sealing slope 31. After the sealing cover 3 is buckled, the sealing slope 31 is in contact with the inner edge of the mounting frame 1 under the action of gravity, thereby forming linear sealing.

[0041] One end of the sealing cover 3 is hinged on the air inlet frame 100, facilitating opening and closing. The sealing cover 3 is connected with the driving mechanism through a chain. The opening degree of the sealing cover 3 is controlled by applying force to the chain (the corresponding driving mechanism and connection mode are prior art, and will not be described here).

[0042] The waste gas opening and closing device air inlet door cover plate bracket is convenient to install and replace, is designed in a split type with the waste gas opening and closing device, can be repaired outside the coal gas area, and can be handled by the post personnel themselves when problems occur, thereby greatly reducing the handling difficulty, reducing the report and coordination handling procedures of the original maintenance mode, ensuring that the equipment performance is always in the best state, and avoiding the problem of unstable heating system caused by the falling of the air inlet door cover plate.

[0043] Example 2

[0044] As shown in the figure, Figure 6 The difference from example 1 is that the mounting frame 1 further comprises a limiting flange 12 arranged on the upper end of the clamping frame 11, and the limiting flange 12 is overlapped above the air inlet frame 100.

[0045] Example 3

[0046] As shown in the figure, Figure 7 The difference from example 1 is that the mounting frame 1 is provided with two oppositely arranged supporting plates 2 on the inner wall of the mounting frame 1, and the supporting plates 2 are arranged along the length direction or the width direction of the mounting frame 1.

[0047] In this embodiment, when the two opposite supporting tables 101 on the inner wall of the air inlet frame 100 are all damaged, the position of the supporting plate 2 is consistent with the position of the original supporting table. Before installation, the remaining supporting table part is polished to avoid affecting the installation. When the two opposite supporting tables 101 on the inner wall of the air inlet frame 100 are partially damaged, the position of the supporting plate 2 is above the original supporting table, and the clamping frame 11 is directly clamped in the inner cavity of the air inlet frame 100 above the original supporting table. The upper end surface of the clamping frame 11 is flush with the upper end surface of the air inlet frame 100.

[0048] Example 4

[0049] As shown in the figure, Figure 8The difference between the embodiment 1 and the embodiment 2 is that the inner wall of the air inlet frame 100 is provided with a partial bracket 101 (not shown in the figure), and the inner wall of the mounting frame 1 is provided with a bracket plate 2 flush with the bracket 101.

[0050] The bracket plate 2 is used to compensate the damaged bracket 101 on the inner wall of the air inlet frame 100, and the width of the air inlet frame 100 is smaller than the width of the bracket 101. The bracket plate 2 and the damaged bracket 101 on the inner wall of the air inlet frame 100 match with each other in shape. In this embodiment, only half of the bracket 101 is damaged.

Claims

1. An exhaust gas shutter inlet door cover plate bracket for an inlet opening frame (100) provided with an inlet opening (200) therein, characterized in that: The installation frame (1) and the supporting plate (2) are included. The supporting plate (2) is arranged on the inner side of the installation frame (1). The installation frame (1) is clamped in the air inlet (200). The supporting plate (2) is used to support the air door cover plate (300).

2. The wastegate shutter inlet door cover plate carrier of claim 1, wherein: Two supporting plates (2) are arranged on the inner wall of the installation frame (1) in opposite directions.

3. The wastegate shutter inlet door cover plate carrier of claim 1, wherein: Four supporting plates (2) are arranged on the inner wall of the installation frame (1) in a ring shape.

4. The wastegate shutter inlet door cover plate carrier of claim 1, wherein: A part of the supporting platform (101) is arranged on the inner wall of the air inlet frame (100), and the supporting plate (2) is arranged flush with the supporting platform (101) on the inner wall of the installation frame (1). The supporting plate (2) is used to compensate for the damaged part of the supporting platform (101) on the inner wall of the air inlet frame (100).

5. The wastegate shutter inlet door cover plate carrier of claim 1, wherein: The installation frame (1) includes a clamping frame (11) matched with the inner cavity of the air inlet frame (100), and the supporting plate (2) is located at the lower end face of the clamping frame (11).

6. The wastegate shutter inlet door cover plate carrier of claim 5, wherein: The installation frame (1) further includes a limiting flange (12) arranged on the upper end of the clamping frame (11), and the limiting flange (12) overlaps above the air inlet frame (100).

7. The wastegate shutter inlet door cover plate carrier of any one of claims 1-6, wherein: A sealing cover (3) matched with the installation frame (1) is further included. The sealing cover (3) is hinged on the air inlet frame (100).

8. The wastegate shutter inlet door cover plate carrier of claim 7, wherein: A sealing slope (31) is arranged on the outer side of the lower end face of the sealing cover (3), and the sealing slope (31) is linearly sealed with the inner edge of the installation frame (1).

9. The wastegate shutter inlet door cover plate carrier of claim 1, wherein: The installation frame (1) and the supporting plate (2) are made of stainless steel.

10. The wastegate shutter inlet door cover plate carrier of claim 1, wherein: The installation frame (1) is square.

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