Equipment for improving activity of hearth

Abstract

The utility model discloses a hearth activity improving device which comprises a high-speed fan, the air outlet end of the high-speed fan is communicated with an air inlet pipe, the air outlet end of the air inlet pipe is communicated with a cooling air pipe, a bottom baffle is embedded in the inner side of the cooling air pipe, a ventilation pipe is welded to the top end of the bottom baffle, and the bottom baffle is provided with a ventilation opening. A top baffle is welded to the top end of the ventilation pipe, an air inlet is formed in the inner side of the top baffle, a cooling water cavity is formed between the ventilation pipe and the cooling air pipe, cooling water can cool the ventilation pipe firstly, heat waves guided out of the blast furnace can be blocked, and therefore the heat waves can be prevented from damaging the high-speed fan, and the service life of the blast furnace is prolonged. Therefore, the high-speed fan can be prevented from being in a high-temperature operation environment for a long time, the high-speed fan is prevented from being damaged, the service life of the high-speed fan is prolonged, the high-speed fan can operate at high speed for a long time, a large amount of oxygen can enter the blast furnace, and the activity in the hearth is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of blast furnaces, in particular to a device for improving the activity of a hearth. Background Technique

[0002] The blast furnace uses a steel plate as the furnace shell, and refractory bricks are lined inside the shell. The blast furnace body is divided into five parts from top to bottom: the throat, the shaft, the waist, the belly, and the hearth. Due to the good technical and economic indicators of blast furnace ironmaking, simple process, large production volume, high labor productivity, and low energy consumption, the iron produced by this method accounts for the vast majority of the world's total iron production. The hearth is the most important part of the blast furnace. After the iron ore is refined, it finally converges to the hearth and flows out of the blast furnace. Generally, the hearth is kept active by blowing air;

[0003] However, most of the existing air blowing devices lack cooling components, so the heat in the furnace will reach the inside of the blower through the pipeline, causing the blower to work in a high-temperature environment for a long time. Long-term work will damage the blower, thereby reducing the activity inside the hearth. To avoid the above technical problems, it is necessary to provide a device for improving the activity of the hearth to overcome the defects in the prior art. Summary of the Utility Model

[0004] The utility model provides a device for improving the activity of a hearth, which can effectively solve the problem that most of the existing air blowing devices lack cooling components, so that the heat in the furnace will reach the inside of the blower through the pipeline, causing the blower to work in a high-temperature environment for a long time. Long-term work will damage the blower, thereby reducing the activity inside the hearth as mentioned in the above background technique.

[0005] To achieve the above object, the utility model provides the following technical solution: A device for improving the activity of a hearth, including a high-speed blower, and a cooling component is arranged on one side of the high-speed blower;

[0006] The cooling component includes an air inlet pipe, a cooling air pipe, a bottom baffle, a ventilation pipe, a top baffle, an air inlet, a cooling water chamber, a water inlet, a water tank, a booster pump, a return water pipe, a water inlet pipe, a drainage trough, and a symmetric blower;

[0007] The air outlet end of the high-speed blower is communicated with the air inlet pipe, the air outlet end of the air inlet pipe is communicated with the cooling air pipe, the bottom baffle is embedded in the inner side of the cooling air pipe, the ventilation pipe is welded to the top end of the bottom baffle, the top baffle is welded to the top end of the ventilation pipe, the air inlet is opened on the inner side of the top baffle, a cooling water chamber is formed between the ventilation pipe and the cooling air pipe, and the water inlet is opened on the outer side of the cooling air pipe;

[0008] A water tank is provided at the bottom of the cooling air duct. A booster pump is installed at the top of the water tank. The water inlet end of the booster pump is connected to a return water pipe, and the water outlet end of the booster pump is connected to a water inlet pipe. A drainage groove is provided at the top position on the outer side of the cooling air duct. Symmetrical blowers are provided at symmetrical positions of the high-speed blower.

[0009] Preferably, a plurality of ventilation ducts are provided, and the plurality of ventilation ducts are installed at equal angular intervals at the top position of the bottom baffle.

[0010] Preferably, a plurality of drainage grooves are provided, and the plurality of drainage grooves are provided at equal angular intervals at the top position on the outer side of the cooling air duct.

[0011] Preferably, the diameters of the top baffle and the bottom baffle are equal to the inner diameter of the cooling air duct. The input ends of the high-speed blower, the booster pump, and the symmetrical blower are all electrically connected to the output end of an external power source.

[0012] Preferably, the air outlet end of the cooling air duct is connected to a wind guiding assembly;

[0013] The wind guiding device includes a wind guiding pipe, a wind guiding box, a wind guiding chamber, a wind guiding inclined plate, a sliding groove, and a wave-proof plate;

[0014] The air outlet section of the cooling air duct communicates with a wind guiding pipe. The air outlet end of the wind guiding pipe communicates with a wind guiding box. A wind guiding chamber is provided inside the wind guiding box. A wind guiding inclined plate is embedded inside the wind guiding chamber. A sliding groove is provided on the side end face of the wind guiding box, and a wave-proof plate is slidably installed inside the sliding groove.

[0015] Preferably, a plurality of wind guiding inclined plates are provided, and the widths of the plurality of wind guiding inclined plates form a geometric progression.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows: The structure of the present utility model is scientific and reasonable, and it is safe and convenient to use:

[0017] 1. A cooling component is provided. The cooling water will first cool the ventilation duct and can block the hot wave led out from the blast furnace, thereby preventing these hot waves from damaging the high-speed blower, preventing the high-speed blower from being in a high-temperature operating environment for a long time, preventing the high-speed blower from being damaged, and thus prolonging the service life of the high-speed blower. As a result, the high-speed blower can operate at a high speed for a long time, ensuring that a large amount of oxygen can enter the inside of the blast furnace, and further enhancing the activity inside the hearth.

[0018] 2. A wind guiding component is provided to assist in burning the molten iron flowing out internally, reducing its temperature reduction rate, thereby ensuring the fluidity of the molten iron. This oxygen will continuously blow from the wind guiding chamber and the wind guiding inclined plate towards the molten iron at the bottom, further improving the casting efficiency. And when the auxiliary combustion is not needed, the wave-proof plate is inserted into the inner side of the sliding groove to prevent the heat wave from turning up, further protecting the high-speed fan from damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0020] In the drawings:

[0021] Figure 1 is a schematic structural view of the present invention;

[0022] Figure 2 is a schematic structural view of the cooling component of the present invention;

[0023] Figure 3 is a schematic installation structural view of the ventilation pipe of the present invention;

[0024] Figure 4 is a schematic structural view of the wind guiding component of the present invention;

[0025] Reference numerals in the figures: 1. High-speed fan;

[0026] 2. Cooling component; 201. Air inlet pipe; 202. Cooling air duct; 203. Bottom baffle; 204. Ventilation pipe; 205. Top baffle; 206. Air inlet; 207. Cooling water chamber; 208. Water inlet; 209. Water tank; 210. Booster pump; 211. Return water pipe; 212. Water inlet pipe; 213. Drainage trough; 214. Symmetric fan;

[0027] 3. Wind guiding component; 301. Wind guiding pipe; 302. Wind guiding box; 303. Wind guiding chamber; 304. Wind guiding inclined plate; 305. Sliding groove; 306. Wave-proof plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The following is a description of the preferred embodiments of the present invention with reference to the drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0029] Embodiment: As Figures 1-4 shown, the present invention provides a technical solution, an equipment for improving the activity of a hearth, including a high-speed fan 1, and a cooling component 2 is arranged on one side of the high-speed fan 1;

[0030] The cooling component 2 includes an air inlet pipe 201, a cooling air duct 202, a bottom baffle 203, a ventilation pipe 204, a top baffle 205, an air inlet 206, a cooling water chamber 207, a water inlet 208, a water tank 209, a booster pump 210, a return water pipe 211, a water inlet pipe 212, a drain trough 213, and a symmetric fan 214;

[0031] The air outlet end of the high-speed fan 1 is communicated with the air inlet pipe 201. The air outlet end of the air inlet pipe 201 is communicated with the cooling air duct 202. The bottom baffle 203 is embedded in the inner side of the cooling air duct 202. The ventilation pipe 204 is welded to the top end of the bottom baffle 203. A plurality of ventilation pipes 204 are provided, and the plurality of ventilation pipes 204 are installed at equal angles at the top position of the bottom baffle 203 to facilitate the rapid flow of the cooling air. The top baffle 205 is welded to the top end of the ventilation pipe 204. The air inlet 206 is opened in the inner side of the top baffle 205. A cooling water chamber 207 is formed between the ventilation pipe 204 and the cooling air duct 202. The water inlet 208 is opened on the outer side of the cooling air duct 202;

[0032] The water tank 209 is arranged at the bottom of the cooling air duct 202. The booster pump 210 is installed on the top of the water tank 209. The water inlet end of the booster pump 210 is connected with the return water pipe 211. The water outlet end of the booster pump 210 is connected with the water inlet pipe 212. A plurality of drain troughs 213 are opened at the top position on the outer side of the cooling air duct 202. The plurality of drain troughs 213 are opened at equal angles at the top position on the outer side of the cooling air duct 202 to facilitate rapid drainage. The symmetric fan 214 is arranged at the symmetric position of the high-speed fan 1. The diameters of the top baffle 205 and the bottom baffle 203 are equal to the inner diameter of the cooling air duct 202 to prevent water leakage. The input ends of the high-speed fan 1, the booster pump 210, and the symmetric fan 214 are all electrically connected to the output end of an external power source.

[0033] The air outlet end of the cooling air duct 202 is connected with a wind guiding component 3;

[0034] The wind guiding device includes a wind guiding pipe 301, a wind guiding box 302, a wind guiding chamber 303, a wind guiding inclined plate 304, a sliding groove 305, and a wave-proof plate 306;

[0035] The air outlet section of the cooling air duct 202 is communicated with the wind guiding pipe 301. The air outlet end of the wind guiding pipe 301 is communicated with the wind guiding box 302. The wind guiding chamber 303 is opened in the inner side of the wind guiding box 302. The wind guiding inclined plate 304 is embedded in the inner side of the wind guiding chamber 303. A plurality of wind guiding inclined plates 304 are provided, and the widths of the plurality of wind guiding inclined plates 304 form a geometric progression, which is beneficial to rapid wind guiding. The sliding groove 305 is opened on the side end face of the wind guiding box 302. The wave-proof plate 306 is slidably installed in the inner side of the sliding groove 305.

[0036] Working principle and usage process of the present utility model: First, when an operator needs to blast air into the blast furnace, the air duct 301 can be connected to the blast system of the blast furnace. Subsequently, when the operator uses the blast system, a large amount of heat will continuously invade the inside of the high-speed blower 1 from the air duct 301 and the cooling air duct 202. When using the high-speed blower 1, a large amount of external cold air will enter the inside of the air inlet pipe 201 from the high-speed blower 1. Subsequently, these winds will reach the position of the bottom baffle 203, and then these winds will enter the air duct 301 from the ventilation pipe 204. Subsequently, these winds will enter the blast furnace. Then, the booster pump 210 is turned on to pass cooling water into the inner side of the water inlet pipe 212 through the return water pipe 211. Subsequently, these water inlet pipes 212 will enter the inner side position of the cooling water chamber 207 through the water inlet 208. At this time, the cooling water will first cool the ventilation pipe 204 and can block the heat waves exported from the blast furnace, thereby preventing these heat waves from damaging the high-speed blower 1, preventing the high-speed blower 1 from being in a high-temperature operating environment for a long time, preventing the high-speed blower 1 from being damaged, and thus prolonging the service life of the high-speed blower 1. Thus, the high-speed blower 1 can operate at a high speed for a long time, ensuring that a large amount of oxygen can enter the blast furnace, further enhancing the activity inside the hearth;

[0037] Next, in order to prevent the surface of the molten iron just out of the furnace from cooling and oxidizing and stopping flowing, the air duct 301 can be connected to the air guide box 302 at this time. At this time, the bottom of the air guide box 302 can be facing the bottom liquid outlet of the blast furnace. When the high-speed blower 1 is turned on at this time, a large amount of air can be blown towards the liquid outlet of the blast furnace, and at this time, the molten iron flowing out inside can be assisted in combustion, reducing its temperature reduction speed, thereby ensuring the fluidity of the molten iron. These oxygen will continuously blow towards the molten iron at the bottom from the air guide chamber 303 and the air guide inclined plate 304, thereby further enhancing the casting efficiency. And when the combustion assistance is not needed, the wave-proof plate 306 is inserted into the inner side of the sliding groove 305 to prevent the heat waves from turning up, further protecting the high-speed blower 1 from being damaged.

[0038] Finally, it should be noted that the above are only the preferred examples of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An apparatus for improving the activity of a hearth, comprising a high-speed blower (1), characterized in that: One side of the high-speed fan (1) is provided with a cooling component (2); The cooling component (2) includes an air inlet pipe (201), a cooling air duct (202), a bottom baffle (203), a ventilation pipe (204), a top baffle (205), an air inlet (206), a cooling water chamber (207), a water inlet (208), a water tank (209), a booster pump (210), a return water pipe (211), a water inlet pipe (212), a drainage trough (213) and a symmetric fan (214); The air outlet end of the high-speed fan (1) is communicated with the air inlet pipe (201), the air outlet end of the air inlet pipe (201) is communicated with the cooling air duct (202), the bottom baffle (203) is embedded in the inner side of the cooling air duct (202), the ventilation pipe (204) is welded to the top end of the bottom baffle (203), the top baffle (205) is welded to the top end of the ventilation pipe (204), the air inlet (206) is opened in the inner side of the top baffle (205), a cooling water chamber (207) is formed between the ventilation pipe (204) and the cooling air duct (202), and the water inlet (208) is opened on the outer side of the cooling air duct (202); A water tank (209) is arranged at the bottom of the cooling air duct (202), a booster pump (210) is installed at the top of the water tank (209), the water inlet end of the booster pump (210) is connected with the return water pipe (211), the water outlet end of the booster pump (210) is connected with the water inlet pipe (212), a drainage trough (213) is opened at the top position on the outer side of the cooling air duct (202), and a symmetric fan (214) is arranged at the symmetric position of the high-speed fan (1).

2. The equipment for improving the activity of the hearth according to claim 1, characterized in that: A plurality of ventilation pipes (204) are provided, and the plurality of ventilation pipes (204) are installed at the top position of the bottom baffle (203) at equal angles.

3. The equipment for improving the activity of the hearth according to claim 1, characterized in that: A plurality of drainage troughs (213) are opened, and the plurality of drainage troughs (213) are opened at the top position on the outer side of the cooling air duct (202) at equal angles.

4. The equipment for improving the activity of the hearth according to claim 1, characterized in that: The diameters of the top baffle (205) and the bottom baffle (203) are equal to the inner diameter of the cooling air duct (202), and the input ends of the high-speed fan (1), the booster pump (210) and the symmetric fan (214) are all electrically connected to the output end of an external power supply.

5. The equipment for improving the hearth activity according to claim 1, characterized in that: The air outlet end of the cooling air duct (202) is connected with a wind guiding component (3); The wind guiding device includes a wind guiding pipe (301), a wind guiding box (302), a wind guiding chamber (303), a wind guiding inclined plate (304), a sliding groove (305) and a wave-proof plate (306); The air outlet section of the cooling air duct (202) is communicated with the wind guiding pipe (301), the air outlet end of the wind guiding pipe (301) is communicated with the wind guiding box (302), the wind guiding chamber (303) is opened in the inner side of the wind guiding box (302), the wind guiding inclined plate (304) is embedded in the inner side of the wind guiding chamber (303), the sliding groove (305) is opened on the side end face of the wind guiding box (302), and the wave-proof plate (306) is slidably installed in the inner side of the sliding groove (305).

6. The equipment for improving the activity of the hearth according to claim 5, characterized in that: A plurality of the air guiding inclined plates (304) are provided, and the widths of the plurality of air guiding inclined plates (304) form a geometric sequence.

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