Air supply throttling structure of hot blast stove

Abstract

The utility model discloses an air supply throttling structure of a hot-blast stove, which relates to the technical field of hot-blast stoves, and comprises a stove body and a throttling adjusting assembly, a burner is arranged on the side edge of the stove body, a fan is arranged on one side of the burner far away from the stove body, the throttling adjusting assembly is arranged above the stove body, and the fan is connected with the stove body. The side, away from the draught fan, of the throttling adjusting assembly is provided with a discharging channel, the center of the throttling adjusting assembly and the center of the draught fan are connected with an air supply channel, and a heat exchange pipe is arranged on the lower portion of the inner wall of the furnace body. When an air source of the hot blast stove is heated, at the moment, the air source conveyed by a draught fan through a discharging channel enters a heat exchange pipe in the stove body through a flow dividing pipe, and at the moment, an adjusting plate is driven by a rotating ring, an adjusting support and a connecting rod, so that the adjusting plate moves in the moving process; and the size of the head of the air source channel conveyed by the flow dividing pipe is adjusted, so that the size of the air source is adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of hot blast stoves, in particular to an air supply throttling structure for a hot blast stove. Background Art

[0002] The hot blast furnace is an important auxiliary equipment in blast furnace ironmaking projects. It is a thermal device that operates periodically with intermittent heating. Increasing the air temperature is of great significance for the safe operation of blast furnaces, saving energy consumption, reducing production costs, and reducing harmful gas emissions. Early hot blast furnace technology had many limitations, such as low air temperature and many technical defects. With the development of technology, the design and manufacture of hot blast furnaces have undergone many changes and improvements. However, due to the complexity of the air supply system, systemic failures often occur when adjusting the air supply. Therefore, a hot blast furnace air supply throttling structure is needed.

[0003] The application number retrieved is: CN201310433436.5, which is a hot air rotary furnace. It is equipped with multiple throttling structures with different throttling effects, so that the circulation mode of the hot air changes, thereby effectively improving the utilization rate of the hot air.

[0004] However, the existing hot blast stove still has certain defects in actual use: when the hot blast stove is in operation, when the air source is in the process of transportation, when the throttling structure fails, the complexity of the air source body structure setting often leads to systematic mechanical failures during the operation of the hot blast stove, resulting in the throttling structure being unable to achieve throttling during the air source transportation process. For this reason, we propose a hot blast stove air supply throttling structure. Utility Model Content

[0005] In order to make up for the above deficiencies, the utility model provides a hot blast stove air supply throttling structure, which aims to improve the problem that when the throttling structure fails during the operation of the hot blast stove and the air source is being transported, the complexity of the body structure setting of the air source often leads to systematic mechanical failures during the operation of the hot blast stove, thereby causing the throttling structure to be unable to achieve throttling during the air source transportation process.

[0006] The utility model realizes an air supply throttling structure of a hot blast stove through the following technical scheme, which includes a furnace body and a throttling adjustment component, a burner is provided on the side of the furnace body, and a fan is provided on the side of the burner away from the furnace body, and the throttling adjustment component is provided above the furnace body, and a discharge channel is provided on the side of the throttling adjustment component away from the fan, and an air supply channel is connected to the center of the throttling adjustment component and the fan, and a heat exchange tube is provided below the inner wall of the furnace body.

[0007] Furthermore, the throttling adjustment component includes an observation window and a lock, and locks are installed on both sides of the observation window, and a diversion pipe is provided at the end of the air supply channel.

[0008] Furthermore, the throttling adjustment assembly also includes a rotating ring, an adjustment bracket, a connecting rod and an adjustment plate, and the side of the rotating ring away from the burner is connected to the adjustment bracket, and the side of the adjustment bracket away from the rotating ring is provided with a connecting rod, and the side of the connecting rod away from the adjustment bracket is installed with an adjustment plate through bolts.

[0009] Furthermore, a first heat supply pipe is installed above the burner by bolts, and a second heat supply pipe is provided on the side of the first heat supply pipe away from the fan, and regulating valves are installed at the centers of the first heat supply pipe and the second heat supply pipe, and an incineration unit is provided on the side of the second heat supply pipe away from the first heat supply pipe.

[0010] Furthermore, a connecting plate is installed at the center of the heat exchange tube by bolts, and a second catalytic plate is installed on the side of the connecting plate away from the burner by bolts, and a first catalytic plate is installed below the second catalytic plate by bolts, and a second partition plate is installed on the side of the second catalytic plate away from the connecting plate by bolts, and a first partition plate is provided at the bottom end of the heat exchange tube.

[0011] Furthermore, support legs are provided under the furnace body, and fixed bases are installed under the support legs. A support base is installed under the fan through bolts, and a connecting pipe is provided at one end of the exhaust channel away from the furnace body.

[0012] The utility model provides an air supply throttling structure for a hot blast furnace, which has the following beneficial effects:

[0013] When the exhaust channel conveys the air source into the interior of the throttling adjustment component, when the motor drives the rotating ring to rotate, the rotating ring drives the adjusting bracket and the connecting rod to move back and forth, so that the adjusting plate connected to the diverter pipe moves back and forth. Therefore, when the rotating ring rotates, the adjusting plate follows and moves back and forth. During the movement of the adjusting plate, the adjusting plate blocks the air inlet area of ​​the diverter pipe, so that the size of the air inlet of the diverter pipe can be adjusted at will by the adjusting plate. The specific contents are as follows:

[0014] A burner is provided on the side of the furnace body, and a fan is provided on the side of the burner away from the furnace body, and a throttling adjustment component is provided above the furnace body, and an exhaust channel is provided on the side of the throttling adjustment component away from the fan, and an air supply channel is connected at the center of the throttling adjustment component and the fan, and a heat exchange pipe is provided below the inner wall of the furnace body, the throttling adjustment component includes an observation window and a lock, and locks are installed on both sides of the observation window, and a diversion pipe is provided at the end of the air supply channel, the throttling adjustment component also includes a rotating ring, an adjusting bracket, a connecting rod and an adjusting plate, and the side of the rotating ring away from the burner is connected to the adjusting bracket, and the side of the adjusting bracket away from the rotating ring is provided with a connecting rod, and the side of the connecting rod away from the adjusting bracket is installed with an adjusting plate through a bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view structural diagram of a furnace body of a hot blast furnace air supply throttling structure according to the present invention;

[0016] Figure 2 This is a schematic structural diagram of a front cross section of a heat exchange tube of a hot blast stove air supply throttling structure according to the present invention;

[0017] Figure 3 This is a schematic structural diagram of a front cross-section of a throttling adjustment component of an air supply throttling structure of a hot blast stove according to the present invention;

[0018] Figure 4 This utility model is a hot blast furnace air supply throttling structure Figure 3 Schematic diagram of the structure of the front view section at point A in the middle.

[0019] In the figure: 1. furnace body; 2. supporting legs; 3. fixed base; 4. discharge channel; 5. connecting pipe; 6. throttling adjustment component; 7. air supply channel; 8. fan; 9. supporting base; 10. burner; 11. first heat supply pipe; 12. regulating valve; 13. second heat supply pipe; 14. incineration unit; 15. first partition plate; 16. first catalytic plate; 17. second catalytic plate; 18. second partition plate; 19. connecting plate; 20. heat exchange tube; 21. observation window; 22. locking buckle; 23. rotating ring; 24. adjusting bracket; 25. diverter pipe; 26. connecting rod; 27. adjusting plate. DETAILED DESCRIPTION

[0020] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0021] like Figure 1 - Figure 4As shown, a hot blast stove air supply throttling structure includes a furnace body 1 and a throttling adjustment component 6, a burner 10 is provided on the side of the furnace body 1, and a fan 8 is provided on the side of the burner 10 away from the furnace body 1, and the throttling adjustment component 6 is provided above the furnace body 1, and an exhaust channel 4 is provided on the side of the throttling adjustment component 6 away from the fan 8, and an air supply channel 7 is connected at the center of the throttling adjustment component 6 and the fan 8, and a heat exchange tube 20 is provided below the inner wall of the furnace body 1, wherein the wind source enters the interior of the throttling adjustment through the air supply channel 7, so that the wind source enters the diverter pipe 25, and the wind source enters the interior of the heat exchange tube 20 through the channel below the diverter pipe 25, and the transported wind source moves through the adjustment plate 27, so that the adjustment plate 27 blocks the size of the vent of the diverter pipe 25 during the movement, thereby adjusting the flow of the wind source.

[0022] The throttling adjustment component 6 includes an observation window 21 and a lock buckle 22, and lock buckles 22 are installed on both sides of the observation window 21, and a diversion pipe 25 is provided at the end of the air supply channel 7. The observation window 21 and the lock buckle 22 of the throttling adjustment component 6 can adjust the lock buckle 22 to open the observation window 21, so that the structure of the diversion pipe 25 can be observed. At this time, the diversion pipe 25 is installed at the end of the air supply channel 7. Therefore, when it is necessary to adjust the size of the wind source of the diversion pipe 25, the adjustment plate 27 under the diversion pipe 25 is moved, so that the adjustment plate 27 blocks the pipe channel opening of the separation pipe.

[0023] The throttling adjustment assembly 6 also includes a rotating ring 23, an adjusting bracket 24, a connecting rod 26 and an adjusting plate 27, and the adjusting bracket 24 is connected to the side of the rotating ring 23 away from the burner 10, and the connecting rod 26 is provided on the side of the adjusting bracket 24 away from the rotating ring 23, and the adjusting plate 27 is installed on the side of the connecting rod 26 away from the adjusting bracket 24 through bolts. When the adjusting plate 27 needs to be rotated, the rotating ring 23 rotates, and the adjusting bracket 24 is driven by the rotating ring 23 to rotate, so that the adjusting bracket 24 drives the connecting rod 26 to swing back and forth, and the connecting rod 26 drives the adjusting plate 27 to swing back and forth.

[0024] A first heat supply pipe 1211 is installed above the burner 10 by bolts, and a second heat supply pipe 13 is provided on the side of the first heat supply pipe 1211 away from the fan 8, and regulating valves are installed at the centers of the first heat supply pipe 1211 and the second heat supply pipe 13, and an incineration unit 14 is provided on the side of the second heat supply pipe 13 away from the first heat supply pipe 1211, wherein the first heat supply pipe 1211 transports the air source into the burner 10, so that the air source enters the incineration unit 14 through the burner 10, so that the air source contacts the fuel after entering the burner 10, thereby combustion occurs, so as to complete the heating of the inside of the furnace body 1, and the regulating valve can be opened and closed so that the regulating valve can adjust the size of the air source delivery.

[0025] A connecting plate 19 is bolted to the center of the heat exchange tube 20, and a second catalytic plate 17 is bolted to the side of the connecting plate 19 away from the burner 10, and a first catalytic plate 16 is bolted to the bottom of the second catalytic plate 17, and a second partition plate 18 is bolted to the side of the second catalytic plate 17 away from the connecting plate 19, and a first partition plate 15 is provided at the bottom end of the heat exchange tube 20, and the air source enters the interior of the heat exchange tube 20 through the diversion pipe 25. At this time, the heat exchange tube 20 transports the air source to the outer surface of the incineration unit 14, so that the air source is heated by the incineration unit 14. At this time, the heated air source enters the first catalytic plate 16 and the second catalytic plate 17 respectively and contacts the outer surface of the heat exchange tube 20, so that the heated air source moves upward through the connecting plate 19, so that the heated air source enters the exhaust channel 4 along the connecting plate 19, so that the exhaust channel 4 transports the heated air source outward.

[0026] Support legs 2 are provided under the furnace body 1, and fixed bases 3 are installed under the support legs 2, and support bases 9 are installed under the fan 8 by bolts, and a connecting pipe 5 is provided at the end of the discharge channel 4 away from the furnace body 1. At this time, the furnace body 1 is fixed and supported by the support legs 2 and the fixed base 3, and the discharge channel 4 is the connecting pipe 5 installed above, which is connected to other pipelines through the connecting pipe 5, and the fan 8 is supported by the support base 9.

[0027] In summary, the utility model is through the furnace body 1 and the throttling adjustment component 6, wherein when the wind source is processed, the fan 8 will let the wind source enter the throttling adjustment component 6 along the air supply channel 7, and the wind source will enter the heat exchange tube 20 of the furnace body 1 through the diverter pipe 25. At the same time, the burner 10 is started, and part of the wind source enters the burner 10 through the first heat supply pipe 1211. At this time, the wind source and the fuel enter the incineration unit 14 through the second heat supply pipe 13 for combustion. At this time, the wind source contacts the combustion range of the combustion unit through the heat exchange tube 20, and the heated wind source contacts the first catalytic plate 16 along the first partition plate 15, so that the heated wind source contacts the second catalytic plate 17 through the first catalytic plate 16, so that the heated wind source penetrates the second catalytic plate 17 and contacts the heat exchange tube 20, so that the heated wind source The heated air source penetrates the heat exchange tube 20 and moves upward along the connecting plate 19, so that the heated air source continuously moves upward, thereby making the heated air source move upward, so that the heated air source enters the exhaust channel 4, and the heated air source is transported along the exhaust channel 4. At this time, when it is necessary to adjust the transported air source, the rotating ring 23 drives the adjustment bracket 24 to rotate, so that the adjustment bracket 24 drives the connecting rod 26 to rotate, so that the connecting rod 26 drives the adjustment plate 27 to move back and forth. At this time, when the adjustment plate 27 moves, the adjustment plate 27 blocks the pipe mouth of the diverter pipe 25 during the movement, thereby completing the adjustment of the channel for transporting the air source of the diverter pipe 25, so that the size of the transported air source can be adjusted by the adjustment plate 27.

Claims

1. A hot blast furnace air supply throttling structure, comprising a furnace body (1) and a throttling adjustment component (6), characterized in that: A burner (10) is provided on the side of the furnace body (1), and a fan (8) is provided on the side of the burner (10) away from the furnace body (1), and the throttling adjustment component (6) is provided above the furnace body (1), and a discharge channel (4) is provided on the side of the throttling adjustment component (6) away from the fan (8), and an air supply channel (7) is connected at the center of the throttling adjustment component (6) and the fan (8), and a heat exchange tube (20) is provided below the inner wall of the furnace body (1).

2. The hot blast stove air supply throttling structure according to claim 1, characterized in that: The throttling adjustment component (6) includes an observation window (21) and a lock buckle (22), and the lock buckles (22) are installed on both sides of the observation window (21), and a diversion pipe (25) is provided at the end of the air supply channel (7).

3. The hot blast stove air supply throttling structure according to claim 1, characterized in that: The throttling adjustment assembly (6) further comprises a rotating ring (23), an adjustment bracket (24), a connecting rod (26) and an adjustment plate (27), wherein the side of the rotating ring (23) away from the burner (10) is connected to the adjustment bracket (24), and the side of the adjustment bracket (24) away from the rotating ring (23) is provided with a connecting rod (26), and the side of the connecting rod (26) away from the adjustment bracket (24) is mounted with the adjustment plate (27) via bolts.

4. The hot blast stove air supply throttling structure according to claim 1, characterized in that: A first heat supply pipe (11) is installed above the burner (10) by means of bolts, and a second heat supply pipe (13) is provided on the side of the first heat supply pipe (11) away from the fan (8), and regulating valves (12) are installed at the centers of the first heat supply pipe (11) and the second heat supply pipe (13), and an incineration unit (14) is provided on the side of the second heat supply pipe (13) away from the first heat supply pipe (11).

5. The hot blast stove air supply throttling structure according to claim 1, characterized in that: A connecting plate (19) is installed at the center of each heat exchange tube (20) by bolts, and a second catalytic plate (17) is installed by bolts on the side of the connecting plate (19) away from the burner (10), and a first catalytic plate (16) is installed below the second catalytic plate (17) by bolts, and a second partition plate (18) is installed by bolts on the side of the second catalytic plate (17) away from the connecting plate (19), and a first partition plate (15) is provided at the bottom end of the heat exchange tube (20).

6. The hot blast stove air supply throttling structure according to claim 1, characterized in that: Support legs (2) are provided below the furnace body (1), and fixed bases (3) are installed below the support legs (2), and a support base (9) is installed below the fan (8) via bolts, and a connecting pipe (5) is provided at one end of the discharge channel (4) away from the furnace body (1).

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