Industrial furnace air door control device

Abstract

The utility model relates to the field of industrial furnace air door control, and discloses an industrial furnace air door control device which comprises an installation frame, a fixing rod and a central position fixedly arranged in the installation frame. One end of the connecting piece is fixedly connected with the outer wall of the fixing rod; the connecting rod is movably connected with the connecting piece through a rotating shaft; the surface of the connecting rod is sleeved with the fixing lantern ring; the door plate is fixedly connected with the outer wall of the fixed lantern ring; the movable sleeve sleeves the surface of the fixed rod; the fixed shaft sleeve is fixed on the surface of the connecting rod; two ends of the movable rod are movably connected with the fixed shaft sleeve and the movable sleeve respectively. Opening and closing of the door plate are controlled by controlling the movable sleeve to move on the surface of the fixing rod, when the door plate is unfolded, the door plate blocks the ventilation opening in the installation frame, when the door plate is folded, a gap is reserved between the door plate and the installation frame, air circulation is facilitated, and the moving distance of the movable sleeve is controlled through the electric telescopic rod. And the opening and closing degree of the door plate can be accurately controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial furnace air door control, in particular to an industrial furnace air door control device. Background Art

[0002] Industrial furnaces are very common and important industrial equipment in modern times. They can efficiently transfer the heat from the combustion in the furnace to external connected equipment. When the industrial furnace is burning, it needs to continuously supply air through the tuyere. Therefore, the control of the tuyere is related to whether the entire industrial furnace can burn normally.

[0003] Most of the current dampers are butterfly valve type dampers, which control the size of the damper of the fan by controlling the opening size of the circular wind shield to achieve the effect of controlling the air intake. However, since the wind shield is circular, in order to better control the rotation of the wind shield, its rotation axis is generally located on the straight surface of the circle. When the wind shield rotates and tilts, the wind enters directly from the gap opened by the wind shield, and it is not easy to control the size of the damper when the circular wind shield rotates. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an industrial furnace air door control device, which solves the problems mentioned in the above background.

[0005] The utility model provides the following technical solutions:

[0006] The utility model discloses an industrial furnace air door control device, comprising a mounting frame,

[0007] The fixing rod is fixed at the center of the installation frame and has a mounting groove at one end;

[0008] A connecting piece, one end of which is fixedly connected to the outer wall of the fixing rod;

[0009] A connecting rod, movably connected to the connecting piece via a rotating shaft;

[0010] A fixed collar is sleeved on the surface of the connecting rod;

[0011] The door panel is fixedly connected to the outer wall of the fixed collar;

[0012] A movable sleeve is sleeved on the surface of the fixed rod;

[0013] A fixed sleeve is fixed on the surface of the connecting rod;

[0014] The movable rod has two ends which are movably connected to the fixed shaft sleeve and the movable sleeve respectively.

[0015] Furthermore, a baffle is fixed to one end surface of the fixing rod close to the door panel, and a supporting rod is fixed to the outer ring of the baffle.

[0016] Furthermore, a support plate is fixed to one end of the fixing rod away from the supporting rod, and two sides of the supporting plate are fixed to the mounting frame.

[0017] Furthermore, an electric telescopic rod is installed on one side of the support plate away from the fixing rod.

[0018] Furthermore, guide grooves are provided at positions on both sides of the fixing rod corresponding to the installation grooves.

[0019] Furthermore, a support frame is fixed to a side of the support plate away from the fixing rod through a support plate.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] The utility model fixes a fixed rod at the central position inside the installation frame, movably arranges a plurality of door panels on the outer circle of the fixed rod, installs a movable sleeve on one side of the door panel, connects the movable sleeve and the door panel through the movable rod, and controls the opening and closing of the door panel by controlling the movable sleeve to move on the surface of the fixed rod. When the door panel is unfolded, the door panel blocks the vent inside the installation frame. When the door panel is folded, a gap is left between the door panel and the installation frame to facilitate air circulation. The movable distance of the movable sleeve is controlled by the electric telescopic rod, so that the size of the opening and closing of the door panel can be accurately controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0023] Figure 2 It is a structural cross-sectional view of the utility model;

[0024] Figure 3 It is a three-dimensional structural diagram of the installation frame in the utility model;

[0025] Figure 4 This is a three-dimensional assembly diagram of the door panel of the utility model;

[0026] The numbers in the figure represent: 1. Installation frame; 2. Fixed rod; 3. Connecting piece; 4. Connecting rod; 5. Fixed collar; 6. Door panel; 7. Movable sleeve; 8. Fixed bushing; 9. Movable rod; 10. Support rod; 11. Support plate; 12. Electric telescopic rod; 13. Guide groove; 14. Support frame. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-4 , including an installation frame 1, a fixing rod 2, which is fixed at the center position inside the installation frame 1 and has an installation groove at one end; a connecting piece 3, one end of which is fixedly connected to the outer wall of the fixing rod 2, and a total of eight groups of connecting pieces 3 are arranged, which are distributed in a ring-shaped and equidistant manner on the outer surface of the fixing rod 2; a connecting rod 4, which is movably connected to the connecting piece 3 through a rotating shaft; a fixing collar 5, which is sleeved on the surface of the connecting rod 4, and two groups of fixing collars 5 are installed on the surface of each connecting rod 4; a door panel 6, which is fixedly connected to the outer wall of the fixing collar 5, and a total of eight door panels 6 are arranged, which are triangular in shape, and the size and area of ​​each door panel 6 are equal, and the two door panels 6 are respectively connected to the connecting rod 4 Different fixed collars 5 are sleeved on the upper part, so that the two door panels 6 can rotate around the connecting rod 4 through the fixed collar 5; the movable sleeve 7 is sleeved on the surface of the fixed rod 2, and four groups of connecting parts 3 are fixed on the outer surface of the movable sleeve 7 at equal intervals; the fixed shaft sleeve 8 is fixed on the surface of the connecting rod 4, corresponds to the four groups of connecting parts 3 on the surface of the movable sleeve 7, and is located on the side of the fixed collar 5 close to the fixed rod 2; the movable rod 9, the two ends of which are movably connected with the fixed shaft sleeve 8 and the movable sleeve 7 respectively. When it is necessary to supply air to the industrial furnace, the movable sleeve 7 is moved away from the door panel 6, so that the movable sleeve 7 is pulled by the movable rod 9. The fixed sleeve 8 is fixed, and when the fixed sleeve 8 moves with the movable rod 9, the connecting rod 4 is pulled and pulled by the fixed sleeve 8. Since one end of the connecting rod 4 is movably connected to the connecting piece 3, when the connecting rod 4 is pulled, it needs to rotate around the rotating shaft inside the connecting piece 3. When the connecting rod 4 rotates, the fixed collar 5 sleeved on the surface of the connecting rod 4 moves with the connecting rod 4, and the fixed collar 5 is fixedly connected to the door panel 6. When the fixed collar 5 is driven by the connecting rod 4, the door panel 6 moves together with the fixed collar 5. Since the movable rod 9 is provided with four groups, when the door panel 6 moves with the connecting rod 4, the side of the door panel 6 close to the fixed sleeve 8 preferably moves with the movable rod 9 First, move closer to the fixed rod 2, so that the door panel 6 is folded (similar to the operating principle of an umbrella). After the door panel 6 is folded, the outer wall of the door panel 6 is away from the inner wall of the mounting frame 1, and a ventilation channel is formed inside the mounting frame 1, which is convenient for air intake to the industrial furnace. By moving the movable sleeve 7 on the surface of the fixed rod 2 at different distances, the area of ​​the door panel 6 after folding is controlled, thereby controlling the size of the ventilation channel inside the mounting frame 1. Moreover, since each group of door panels 6 is driven by the fixed shaft sleeve 8 to fold at the same time, the inclination angle of each group of door panels 6 is basically the same, and the distance from the inner wall of the mounting frame 1 is also basically the same, so that wind can pass through the inside of the mounting frame 1 evenly.

[0029] A baffle is fixed to the surface of one end of the fixing rod 2 near the door panel 6, and a support rod 10 is fixed to the outer ring of the baffle. The support rod 10 is fixed to the inner wall of the mounting frame 1, and the support rod 10 is located in the gap between the door panels 6. One end of the fixing rod 2 can be fixedly supported by the support rod 10, and the baffle can limit the movement of the door panel 6. A baffle bar is fixed to the position of the inner wall of the mounting frame 1 corresponding to the support rod 10. When the door panel 6 is flatly unfolded inside the mounting frame 1, the side of the door panel 6 away from the movable sleeve 7 is against the baffle bar, and the gap between the door panels 6 is blocked by the support rod 10, thereby reducing the ventilation problem inside the mounting frame 1 after the door panel 6 is unfolded, and after the door panel 6 is unfolded, the side wall of the door panel 6 can be supported by the support rod 10, thereby increasing the support area of ​​the door panel 6.

[0030] A support plate 11 is fixed to one end of the fixed rod 2 away from the support rod 10, and both ends of the support plate 11 are fixed to the mounting frame 1. An electric telescopic rod 12 is installed on the side of the support plate 11 away from the fixed rod 2. A through hole is provided in the support plate 11 corresponding to the position of the fixed rod 2. The telescopic end of the electric telescopic rod 12 passes through the through hole and is installed in the mounting groove of the fixed rod 2. A support frame 14 is fixed to the side of the support plate 11 away from the fixed rod 2 through a support plate, and the support frame 14 supports and fixes the electric telescopic rod 12. Guide grooves 13 are provided at the positions corresponding to the mounting grooves on both sides of the fixed rod 2. A connecting block is fixed at the telescopic end of the electric telescopic rod 12 corresponding to the position of the guide groove 13. The other end of the connecting block is connected to the inner wall of the movable sleeve 7. The movement of the movable sleeve 7 is controlled by the electric telescopic rod 12. When the movable sleeve 7 moves, the connecting block moves inside the guide groove 13, which can prevent the movable sleeve 7 from rotating during movement, so that the movable rod 9 can normally support and retract the door panel 6.

[0031] Working principle: connect the mounting frame 1 to the air inlet of the industrial furnace. During installation, place the electric telescopic rod 12 on the side away from the industrial furnace. When air needs to be supplied to the industrial furnace, the electric telescopic rod 12 drives the movable sleeve 7 to move on the surface of the fixed rod 2, so that the movable sleeve 7 pulls the movable rod 9 to move through the connecting piece 3. When the movable rod 9 moves, it drives the door panel 6 to fold. After the door panel 6 is folded, a gap is left between the door panel 6 and the inner wall of the mounting frame 1 to facilitate normal air circulation. When the door panel 6 needs to be closed, the electric telescopic rod 12 pushes the movable sleeve 7 in the opposite direction, so that the door panel 6 is spread out and the air vent in the mounting frame 1 is closed. After the door panel 6 is unfolded, the side wall of the door panel 6 is plugged into the support rod 10, and the support rod 10 further supports the door panel 6 to reduce the load on the connection point between the connecting piece 3 and the connecting rod 4.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An industrial furnace air door control device, comprising a mounting frame (1), It is characterized in that Also included are: A fixing rod (2) is fixedly mounted at a central position inside the mounting frame (1), and has a mounting groove at one end; A connecting piece (3), one end of which is fixedly connected to the outer wall of the fixing rod (2); A connecting rod (4) movably connected to the connecting member (3) via a rotating shaft; A fixed collar (5) sleeved on the surface of the connecting rod (4); The door panel (6) is fixedly connected to the outer wall of the fixing ring (5); A movable sleeve (7) is sleeved on the surface of the fixed rod (2); A fixed shaft sleeve (8) fixed on the surface of the connecting rod (4); The movable rod (9) has two ends movably connected to the fixed shaft sleeve (8) and the movable sleeve (7) respectively.

2. The industrial furnace air door control device according to claim 1, characterized in that: A baffle is fixed to one end surface of the fixing rod (2) close to the door panel (6), and a support rod (10) is fixed to the outer ring of the baffle.

3. The industrial furnace air door control device according to claim 1, characterized in that: A support plate (11) is fixed to one end of the fixing rod (2) away from the support rod (10), and two sides of the support plate (11) are fixed to the mounting frame (1).

4. The industrial furnace air door control device according to claim 3, characterized in that: An electric telescopic rod (12) is installed on one side of the support plate (11) away from the fixed rod (2).

5. The industrial furnace air door control device according to claim 1, characterized in that: Guide grooves (13) are provided at positions corresponding to the mounting grooves on both sides of the fixing rod (2).

6. The industrial furnace air door control device according to claim 3, characterized in that: A support frame (14) is fixed to the side of the support plate (11) away from the fixing rod (2) via a support plate.

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