Air inlet control device of hot blast stove

Abstract

The utility model discloses an air inlet control device of a hot-blast stove, which belongs to the technical field of air inlet control of the hot-blast stove and is mounted on the hot-blast stove. Comprising an air inlet duct, a second air inlet adjusting assembly, a fuel gas inlet duct, a fuel gas inlet duct control valve and a first air inlet adjusting assembly. A driving assembly used for synchronously driving the first air inlet adjusting assembly and the second air inlet adjusting assembly to operate is installed at the right end of the hot blast stove. The driving assembly comprises a transverse plate, an electric push rod and a supporting seat; the second air inlet adjusting assembly comprises a rotary opening and closing assembly, a straight hole, a baffle and a transmission assembly. The driving assembly is simple and reasonable in structure, easy to install and beneficial to cost reduction; the straight hole is matched with the baffle, so that redundant air can be exhausted through the straight hole, the pressure in the air inlet duct is prevented from being larger and larger, and potential safety hazards are effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of hot blast stove air intake control, in particular to a hot blast stove air intake control device. Background Art

[0002] Hot blast stove air intake control mainly refers to the firepower adjustment ratio of the gas and air supplied to the hot blast stove, which directly affects the combustion performance of the hot blast stove.

[0003] Chinese utility model patent CN216361390U discloses a mechanical ratio adjustment mechanism of a linear burner, including a combustion-supporting air supply component, a gas regulating valve, a driving device and a linkage component. The combustion-supporting air supply component is connected to the burner head of the linear burner through an air duct, an air volume regulating device is arranged in the air duct, the gas regulating valve is arranged on an air intake pipe for supplying gas to the burner head, the driving device is respectively connected to the gas regulating valve and the air volume regulating device through the linkage component, and the opening of the gas regulating valve and the switching amount of the air volume regulating device are synchronously adjusted to adjust the firepower adjustment ratio of the gas in the intake pipe and the air in the air duct.

[0004] However, the prior art has the following drawbacks: first, the structure of the linkage assembly is very complex and difficult to install, and the processing accuracy of each component needs to be guaranteed to avoid large errors, but the cost is high due to the large number of structures; second, the combustion-supporting fan discharges air to the air duct, and the air volume regulating device is driven to rotate by the drive shaft to adjust the switching amount of the air duct accordingly. Since the air volume of the fan is constant, the air volume of the air duct is reduced, which will cause the pressure in the air duct to become greater and greater, which will pose a greater safety hazard if used for a long time.

[0005] Based on this, the utility model designs a hot blast stove air intake control device to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the prior art, the utility model provides an air intake control device for a hot blast furnace.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A hot blast stove air intake control device, installed on the hot blast stove;

[0009] An air intake duct for air intake is fixedly installed at the front end of the hot blast furnace;

[0010] A second air intake regulating assembly for regulating the air intake amount is installed inside the air intake duct;

[0011] A gas intake duct for gas intake is fixedly installed at the right end of the hot blast furnace;

[0012] The gas intake duct is provided with a gas intake duct control valve for adjusting the gas intake amount; the switch knob of the gas intake duct control valve is connected with a first intake adjustment component;

[0013] The right end of the hot blast furnace is provided with a driving assembly for synchronously driving the first air intake regulating assembly and the second air intake regulating assembly to operate;

[0014] The driving assembly includes a transverse plate, an electric push rod and a support seat; the support seat is fixedly mounted on the hot air furnace, the electric push rod is fixedly connected to the support seat, the driving end of the electric push rod is fixedly connected to the transverse plate, and the front and rear ends of the transverse plate are respectively connected to the second air intake adjustment assembly and the first air intake adjustment assembly;

[0015] The second air intake adjustment component includes a rotating opening and closing component, a straight hole, a baffle and a transmission component; the driving component is connected to the rotating opening and closing component through the transmission component, and the rotating opening and closing component is located inside the air intake duct; the baffle is fixedly installed on the inner bottom of the air intake duct, and the lower end of the air intake duct is located on the front side of the baffle and is provided with a straight hole.

[0016] Furthermore, a sliding rod is fixedly connected to the lower end of the horizontal plate, and the sliding rod is vertically slidably connected to the support seat.

[0017] Furthermore, the rotating opening and closing assembly includes a horizontal axis and an adjusting plate.

[0018] Furthermore, the horizontal axis is rotatably mounted on the air intake duct, an adjustment plate is fixedly connected to the horizontal axis, and one end of the horizontal axis is connected to the transmission assembly.

[0019] Furthermore, the transmission assembly includes a ring gear and a rack.

[0020] Furthermore, the front lower end of the horizontal plate is fixedly connected to the rack, the rack is meshed with the gear ring, and the gear ring is fixedly installed on the right end of the horizontal shaft.

[0021] Furthermore, an arc-shaped groove is provided at the upper end of the baffle plate for embedding and rotating with the upper part of the adjustment plate.

[0022] Furthermore, the first air intake adjustment component includes a first straight plate, a slide groove, a push plate and a fixed plate; the rear upper end of the cross plate is fixedly connected to the first straight plate, a push plate is fixedly connected to the first straight plate, the push plate is slidably connected in the slide groove opened on the fixed plate, and the fixed plate is fixedly connected to the switch knob of the gas intake duct control valve.

[0023] Beneficial Effects

[0024] The utility model starts the electric push rod to drive the horizontal plate to move up and down, and the horizontal plate drives the sliding rod to move up and down along the support seat, thereby realizing the stable movement of the horizontal plate; when the horizontal plate moves upward, it drives the second air intake adjustment component to increase the air intake amount and the first air intake adjustment component to decrease the gas intake amount; when the horizontal plate moves downward, it drives the second air intake adjustment component to decrease the air intake amount and the first air intake adjustment component to increase the gas intake amount; the driving component of the utility model has a simple and reasonable structure, is easy to install, and is conducive to reducing costs; the utility model can realize the synchronous adjustment of the first air intake adjustment component and the second air intake adjustment component through a relatively simple structure, thereby realizing the firepower adjustment ratio of the gas in the intake pipe and the air in the air duct.

[0025] When the horizontal plate of the utility model moves, it drives the rack to move, the rack drives the gear ring to rotate, the gear ring drives the horizontal axis to rotate, the horizontal axis drives the adjustment plate to rotate, the adjustment plate adjusts the gap between the adjustment plate and the air intake duct, and thus adjusts the air intake amount; when the horizontal plate of the utility model moves, it drives the first straight plate to move, the first straight plate drives the push plate to slide in the slide groove and pushes the fixed plate to rotate, the fixed plate drives the switch knob of the gas intake duct control valve to rotate, and thus adjusts the gas intake amount; the cooperation of the straight hole and the baffle can realize the discharge of excess air through the straight hole, avoids the increasing pressure inside the air intake duct, and effectively reduces the safety hazard. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 A three-dimensional hot air furnace air intake control device of the utility model Figure 1 ;

[0028] Figure 2 This is a front view of a hot blast stove air intake control device of the utility model;

[0029] Figure 3 A three-dimensional hot air furnace air intake control device of the utility model Figure 2 ;

[0030] Figure 4 A three-dimensional hot air furnace air intake control device of the utility model Figure 3 ;

[0031] Figure 5 A three-dimensional hot air furnace air intake control device of the utility model Figure 4 ;

[0032] Figure 6 It is a cross-sectional view of a hot blast stove air intake control device of the utility model;

[0033] The numbers in the figure represent:

[0034] 1. Hot air furnace; 2. Air intake duct; 3. Gas intake duct; 4. Gas intake duct control valve; 5. First air intake adjustment component; 51. First straight plate; 52. Slide groove; 53. Push plate; 54. Fixed plate; 6. Drive component; 61. Cross plate; 62. Slide rod; 63. Electric push rod; 64. Support seat; 7. Second air intake adjustment component; 71. Cross shaft; 72. Gear ring; 73. Rack; 74. Adjustment plate; 75. Straight hole; 76. Baffle. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of 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.

[0036] The utility model is further described below in conjunction with embodiments.

[0037] The terms “left”, “right”, “front”, “back”, “up” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0038] In some embodiments, please refer to the attached instructions. Figure 1-6 , a hot blast stove air intake control device, installed on the hot blast stove 1;

[0039] An air intake duct 2 for air intake is fixedly installed at the front end of the hot air furnace 1;

[0040] A second air intake regulating assembly 7 for regulating the air intake amount is installed inside the air intake duct 2;

[0041] A gas intake duct 3 for gas intake is fixedly installed at the right end of the hot blast furnace 1;

[0042] The gas intake duct 3 is provided with a gas intake duct control valve 4 for adjusting the gas intake amount; the switch knob of the gas intake duct control valve 4 is connected with a first intake adjustment component 5;

[0043] The right end of the hot blast furnace 1 is provided with a driving assembly 6 for synchronously driving the first air intake regulating assembly 5 and the second air intake regulating assembly 7 to operate;

[0044] The driving assembly 6 includes a transverse plate 61, an electric push rod 63 and a support seat 64; the support seat 64 is fixedly mounted on the hot air furnace 1, the electric push rod 63 is fixedly connected to the support seat 64, the driving end of the electric push rod 63 is fixedly connected to the transverse plate 61, and the front and rear ends of the transverse plate 61 are respectively connected to the second air intake adjustment assembly 7 and the first air intake adjustment assembly 5;

[0045] Preferably, a slide bar 62 is fixedly connected to the lower end of the horizontal plate 61, and the slide bar 62 is vertically slidably connected to the support seat 64;

[0046] The electric push rod 63 is started to drive the horizontal plate 61 to move up and down, and the horizontal plate 61 drives the slide bar 62 to move up and down along the support seat 64, so as to realize the stable movement of the horizontal plate 61; when the horizontal plate 61 moves upward, it drives the second air intake adjustment component 7 to increase the air intake amount and the first air intake adjustment component 5 to decrease the gas intake amount; when the horizontal plate 61 moves downward, it drives the second air intake adjustment component 7 to decrease the air intake amount and the first air intake adjustment component 5 to increase the gas intake amount; the driving component 6 of the utility model has a simple and reasonable structure, is easy to install, and is conducive to reducing costs;

[0047] The second air intake adjustment assembly 7 includes a rotating opening and closing assembly, a straight hole 75, a baffle 76 and a transmission assembly; the driving assembly 6 is connected to the rotating opening and closing assembly through the transmission assembly, and the rotating opening and closing assembly is located inside the air intake duct 2; the baffle 76 is fixedly installed at the inner bottom of the air intake duct 2, and the lower end of the air intake duct 2 is located in front of the baffle 76 and is provided with a straight hole 75;

[0048] The rotating opening and closing assembly includes a horizontal shaft 71 and an adjusting plate 74; the horizontal shaft 71 is rotatably mounted on the air intake duct 2, the adjusting plate 74 is fixedly connected to the horizontal shaft 71, and one end of the horizontal shaft 71 is connected to the transmission assembly;

[0049] The transmission assembly includes a ring gear 72 and a rack 73; the front lower end of the horizontal plate 61 is fixedly connected to the rack 73, the rack 73 is meshed with the ring gear 72, and the ring gear 72 is fixedly installed on the right end of the horizontal shaft 71;

[0050] Preferably, the upper end of the baffle 76 is provided with an arc-shaped groove for fitting and rotating with the upper part of the adjustment plate 74;

[0051] When the horizontal plate 61 moves, it drives the rack 73 to move, the rack 73 drives the gear ring 72 to rotate, the gear ring 72 drives the horizontal shaft 71 to rotate, the horizontal shaft 71 drives the adjustment plate 74 to rotate, the adjustment plate 74 adjusts the gap between the air intake duct 2 and the air intake volume; the cooperation between the straight hole 75 and the baffle 76 can realize the discharge of excess air through the straight hole 75, avoid the pressure inside the air intake duct 2 to increase, and effectively reduce the safety hazard.

[0052] The first air intake adjustment assembly 5 includes a first straight plate 51, a slide groove 52, a push plate 53 and a fixed plate 54; the rear upper end of the horizontal plate 61 is fixedly connected to the first straight plate 51, and the push plate 53 is fixedly connected to the first straight plate 51. The push plate 53 is slidably connected to the slide groove 52 provided on the fixed plate 54, and the fixed plate 54 is fixedly connected to the switch knob of the gas intake air duct control valve 4;

[0053] When the horizontal plate 61 moves, it drives the first straight plate 51 to move, and the first straight plate 51 drives the push plate 53 to slide in the slide groove 52 and drives the fixed plate 54 to rotate, and the fixed plate 54 drives the switch knob of the gas intake air duct control valve 4 to rotate, thereby adjusting the gas intake amount;

[0054] The drive assembly 6 of the utility model has a simple and reasonable structure, is easy to install, and is conducive to reducing costs; the synchronous adjustment of the first air intake adjustment assembly 5 and the second air intake adjustment assembly 7 can be achieved through a relatively simple structure, thereby achieving the firepower adjustment ratio of adjusting the gas in the intake pipe and the air in the air duct.

[0055] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A hot blast stove air intake control device, installed on a hot blast stove (1), characterized in that: An air intake duct (2) for air intake is fixedly installed at the front end of the hot air furnace (1); A second air intake regulating component (7) for regulating the air intake amount is installed inside the air intake duct (2); A gas intake duct (3) for gas intake is fixedly installed at the right end of the hot blast furnace (1); A gas intake duct control valve (4) for adjusting the gas intake amount is installed on the gas intake duct (3); a first intake adjustment component (5) is connected to the switch knob of the gas intake duct control valve (4); A driving assembly (6) for synchronously driving the first air intake regulating assembly (5) and the second air intake regulating assembly (7) to operate is installed at the right end of the hot air furnace (1); The driving assembly (6) comprises a transverse plate (61), an electric push rod (63) and a support seat (64); the support seat (64) is fixedly mounted on the hot air furnace (1), the electric push rod (63) is fixedly connected to the support seat (64), the driving end of the electric push rod (63) is fixedly connected to the transverse plate (61), and the front and rear ends of the transverse plate (61) are respectively connected to the second air intake adjustment assembly (7) and the first air intake adjustment assembly (5); The second air intake adjustment component (7) comprises a rotating opening and closing component, a straight hole (75), a baffle (76) and a transmission component; the driving component (6) is connected to the rotating opening and closing component via the transmission component, and the rotating opening and closing component is located inside the air intake duct (2); the baffle (76) is fixedly mounted on the inner bottom of the air intake duct (2), and the lower end of the air intake duct (2) is located in front of the baffle (76) and is provided with a straight hole (75).

2. The hot blast stove air intake control device according to claim 1, characterized in that: The lower end of the transverse plate (61) is fixedly connected with a sliding rod (62), and the sliding rod (62) is vertically slidably connected with a supporting seat (64).

3. The hot blast stove air intake control device according to claim 2, characterized in that: The rotating opening and closing assembly comprises a transverse shaft (71) and an adjusting plate (74).

4. The hot blast stove air intake control device according to claim 3, characterized in that: The transverse shaft (71) is rotatably mounted on the air intake duct (2), an adjustment plate (74) is fixedly connected to the transverse shaft (71), and one end of the transverse shaft (71) is connected to the transmission assembly.

5. The hot blast stove air intake control device according to claim 4, characterized in that: The transmission assembly comprises a ring gear (72) and a rack (73).

6. The hot blast stove air intake control device according to claim 5, characterized in that: The front lower end of the transverse plate (61) is fixedly connected to the rack (73), the rack (73) is meshedly connected to the ring gear (72), and the ring gear (72) is fixedly mounted on the right end of the transverse shaft (71).

7. The hot blast stove air intake control device according to claim 6, characterized in that: The upper end of the baffle (76) is provided with an arc-shaped groove for fitting and rotating with the upper part of the adjusting plate (74).

8. The hot blast stove air intake control device according to claim 7, characterized in that: The first air intake adjustment component (5) comprises a first straight plate (51), a slide groove (52), a push plate (53) and a fixed plate (54); the rear upper end of the transverse plate (61) is fixedly connected to the first straight plate (51), a push plate (53) is fixedly connected to the first straight plate (51), the push plate (53) is slidably connected to the slide groove (52) provided on the fixed plate (54), and the fixed plate (54) is fixedly connected to the switch knob of the gas intake air duct control valve (4).

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