BLAST FURNACE BLOWER DEVICE

Abstract

A blast furnace blower device includes a body, a flow guidance structure and a cooling module. The body is hollow inside. The body includes an inlet area, an outlet nozzle area, and a fuel nozzle area. The fuel nozzle area is located between the outlet nozzle area and the inlet area, and a channel is formed from the inlet area to the outlet nozzle area. The flow guidance structure is deployed continuously or discontinuously along an inner wall of the body. The flow guidance structure is located between the fuel nozzle area and the outlet nozzle area. The flow guidance structure has a nozzle distance range along an axial direction of the body to the outlet nozzle area. The cooling module is located outside the body.

Claims

1. A blast furnace blower device, comprising: a body, hollow inside, comprising an inlet area, an outlet nozzle area, and a fuel nozzle area, wherein the fuel nozzle area is located between the outlet nozzle area and the inlet area, and a channel is formed from the inlet area to the outlet nozzle area; a flow guidance structure, deployed continuously or discontinuously along an inner wall of the body, wherein the flow guidance structure is located between the fuel nozzle area and the outlet nozzle area, and the flow guidance structure has a nozzle distance range along an axial direction of the body to the outlet nozzle area; and a cooling module, located outside the body.

2. The blast furnace blower device according to claim 1, wherein a range of the nozzle distance range is between 1/2L and 1/6L, and L is a length of the body.

3. The blast furnace blower device according to claim 2, wherein the nozzle distance range is between 20% and 50% of the range.

4. The blast furnace blower device according to claim 1, wherein the flow guidance structure protrudes from the inner wall of the body.

5. The blast furnace blower device according to claim 1, wherein the flow guidance structure is integrally formed with the inner wall of the body or is disposed separately.

6. The blast furnace blower device according to claim 1, wherein a nozzle angle is provided between the fuel nozzle area and the body.

7. The blast furnace blower device according to claim 6, wherein a range of the nozzle angle is between 0 degrees and 60 degrees.

8. The blast furnace blower device according to claim 7, wherein the nozzle angle is degrees.

9. The blast furnace blower device according to claim 1, further comprising: a powder introduction component connected within the body.

10. The blast furnace blower device according to claim 1, wherein the inlet area is used for introducing an oxygen, and the fuel nozzle area is used for directing a methane into the channel.

11. The blast furnace blower device according to claim 1, wherein the fuel nozzle area is a nozzle orifice of the body, and the nozzle orifice is connected to a fuel pipe.

12. The blast furnace blower device according to claim 1, wherein the flow guidance structure is an annular groove surrounding the body.

13. The blast furnace blower device according to claim 12, wherein the annular groove has a round corner.

14. The blast furnace blower device according to claim 1, wherein the flow guidance structure has a flow guidance depth, and the flow guidance depth is formed by recessing a peripheral surface of the body.

15. The blast furnace blower device according to claim 1, wherein an interval range of the flow guidance depth is between 0.05D and 0.2D, and D is the pipe diameter of the body.

16. The blast furnace blower device according to claim 15, wherein the flow guidance depth is 0.1D.

Description

BRIEF DESCRIPTION OF THE DRA WINGS

[0009] FIG. 1 is a schematic diagram of an embodiment of the blast furnace blower device of the present disclosure.

[0010] FIG. 2A is a simulation diagram of a conventional blast furnace blower.

[0011] FIG. 2B is a simulation diagram of the blast furnace blower of the present disclosure.

[0012] FIG. 3 is a schematic diagram of another embodiment of the blast furnace blower device of the present disclosure.

DETAILED DESCRIPTION

[0013] The following embodiments are set forth in detail with accompanying drawings, but the embodiments provided are not intended to limit the scope of the disclosure. In addition, the drawings are for illustrative purposes only and are not drawn to original size. To facilitate understanding, the same components will be identified with the same symbols in the following description.

[0014] The terms including, comprising, having, etc. mentioned in the disclosure are open terms, which means including but not limited to.

[0015] In the description of various embodiments, when describing the components in terms of first, second, third, fourth, and the like, it is used only to distinguish these components from one another, and does not limit the order or importance of these components.

[0016] In the illustrations of various embodiments, the so-called coupling or connection may refer to two or more elements being in direct physical or electrical contact with each other, or in indirect physical or electrical contact with each other, and coupling or connection may also refer to the mutual operation or action of two or more components.

[0017] FIG. 1 is a schematic diagram of an embodiment of the blast furnace blower device of the present disclosure. Please refer to FIG. 1. The blast furnace blower device 100 of the present disclosure includes a body 110 and a flow guidance structure 120. The body 110 is, for example, a columnar body, and the body 110 is hollow inside. The body 110 includes an inlet area 112, an outlet nozzle area 114 and a fuel nozzle area 116. The fuel nozzle area 116 is located between the outlet nozzle area 114 and the inlet area 112. A channel is formed from the inlet area 112 to the outlet nozzle area 114, and the outlet nozzle area 114 serves as a blowout nozzle. The width of the inlet area 112 is greater than the width of the outlet nozzle area 114. In other embodiments, the width of the inlet area 112 is equal to the width of the outlet nozzle area 114. Alternatively, the width of the inlet area 112 and the width of the outlet nozzle area 114 can be adjusted depending on actual conditions.

[0018] The flow guidance structure 120 is disposed continuously along the inner wall 111 of the body 110 or is disposed discontinuously along the inner wall 111 of the body 110. For example, the flow guidance structure 120 is deployed continuously along the inner wall 111 of the body 110 and is arranged around the inner wall 111 of the body 110. In other embodiments, the flow guidance structure 120 is disposed around the inner wall 111 of the body 110 along the discontinuous extending portions of the inner wall 111 of the body 110. The flow guidance structure 120 is located between the fuel nozzle area 116 and the outlet nozzle area 114. The flow guidance structure 120 has a range of nozzle distance P1 from the body 110 along the axial direction AX to the outlet nozzle area 114.

[0019] In this configuration, the inlet area 112 is used for the passage of oxygen G1. The fuel nozzle area 116 is used for the introduction of, for example, the methane G2, into the channel 118, as a blowing for the combustion reaction. By arranging the flow guidance structure 120 located around the inner wall 111 of the body 110, the gases, mixed combustion gases, or fluids, are directed by the flow guidance structure 120 to the center of the channel 118. This present embodiment may improve the problem of heat damage caused by heat accumulation on the inner wall 111 of the blast furnace blower device 100 and provides a better combustion temperature of the blast furnace blowout.

[0020] The shape of the flow guidance structure 120 is not limited by the present disclosure. For example, the flow guidance structure 120 protrudes from the inner wall 111 of the body 110. That is, the flow guidance structure 120 is a continuously deployed with extending convex body disposed on the inner wall 111 of the body 110. In other embodiments, the flow guidance structure 120 is deployed discontinuously, which extends along the inner wall 111 of the body 110 and is disposed around the inner wall 111 of the body 110. That is, the flow guidance structure 120 is a plurality of convex body portions that surround the inner wall 111 of the body 110. In other embodiments, the flow guidance structure is a concave-convex structure or an irregular-shaped structure.

[0021] In one embodiment, the flow guidance structure 120 can be integrally formed with the inner wall 111 of the body 110. That is, the peripheral surface 113 of the body 110 is recessed to form the flow guidance structure 120. In other embodiments, the flow guidance structure 120 can be provided separately from the inner wall 111 of the body 110. That is, the flow guidance structure 120 can be an insert component disposed on the inner wall 111 of the body 110.

[0022] In one embodiment, the flow guidance structure 120 is an annular groove 122 surrounding the body 110. In other embodiments, the flow guidance structure 120 can be any other shape of groove. In a further embodiment, the edge of the annular groove 120 has a round corner 122B for providing smooth flow of fluids. The flow guidance structure 122 has a flow guidance depth R1, and the flow guidance depth R1 is formed by recessing the peripheral surface 113 of the body 110. The interval range of the flow guidance depth is between 0.05D and 0.2D. The flow guidance depth is, for example, 0.05D, 0.075D, 0.1D, 0.15D, 0.175D, and 0.2D. D is the pipe diameter of the body 110. Taking FIG. 1 as an example, the pipe diameter D of the body 110 is the pipe diameter of the outlet nozzle area 114, and the flow guidance depth R1 is 0.1D.

[0023] In one embodiment, the nozzle distance P1 is defined as the distance from the center point 122A of the flow guidance structure 122 along the axial direction AX of the body 110 to the outlet nozzle area 114. The range of the nozzle distance P1 is between 1/2L and 1/6L, such as 1/2L, 1/3L, 1/4L, 1/5L, and 1/6L. L is the length of the body 110. For example, the range of the nozzle distance P1 is between 20% and 50%. Taking FIG. 1 as an example, the nozzle distance P1 is 1/4L.

[0024] In one embodiment, the fuel nozzle area 116 is at a nozzle orifice 116A of the body 110, and the nozzle orifice 116A is connected to a fuel pipe 140. The fuel pipe 140 provides, for example, the methane G2, to the nozzle orifice 116A, and is introduced into the channel 118. In a further embodiment, there is a nozzle angle A1 between the fuel nozzle area 116 and the body 110. The nozzle angle A1 of the fuel nozzle area 116 is, for example, 0 degrees, 15 degrees, 30 degrees, 45 degrees, or 60 degrees. That is, the range of the nozzle angle A1 is between 0 degrees and 60 degrees. The nozzle angle A1 of 0 degrees indicates that the fuel nozzle area 116 is orthogonal to the inner wall 111 of the body 110. Taking FIG. 1 as an example, the nozzle angle A1 is present between the fuel nozzle area 116 and the normal vector M1 of the inner wall 111. The nozzle angle A1 is, for example, 30 degrees.

[0025] As shown in FIG. 1, the present disclosure also includes a powder introduction component 130. The powder introduction component 130 is connected within the body 110. The powder introduction element 130 is, for example, diagonally led into the channel 118 of the body 110. The powder introduction element 130 is provided with a powder nozzle area 132. The powder introduction element 130 introduces the powder G3 (such as carbon) into the channel 118, directs a large amount of air (such as oxygen G1) through the inlet area to form a high-temperature combustion area to react with the methane G2 supplied by fuel nozzle area 116. The reacted fluid G4 (including gas and liquid) flows out from the outlet nozzle area 114 of the channel 118. In one embodiment, the powder nozzle area 132 is between the inlet area 112 and the fuel nozzle area 116 in the axial direction AX, and the powder nozzle area 132 does not exceed the position on the axial direction AX of the fuel nozzle area 116.

[0026] FIG. 2A is a simulation diagram of a conventional blast furnace blower device. FIG. 2B is a simulation diagram of the blast furnace blower device of the present disclosure. Please refer to FIG. 2A and FIG. 2B. In order to verify this disclosure, a simulation method is used to compare the conventional technology (FIG. 2A) and the disclosure (FIG. 2B). The dark color indicates high temperature, and the light color indicates low temperature. FIG. 2B includes a flow guidance structure 120, while FIG. 2A does not include a flow guidance structure. From the simulation results, it can be seen that heat accumulation occurs on the wall surface of the area N1 in FIG. 2A, which further leads to insufficient temperature in the central area S1 (compared to FIG. 2B) and less concentration of heat energy. Accordingly, the blowout combustion temperature of the blast furnace will be affected. In contrast, as shown in FIG. 2B, the present disclosure may indeed improve the heat accumulation problem on the wall surface of the area N2 through the flow guidance structure 120, thereby avoiding heat damage of the structure due to heat accumulation. Therefore, the disclosure improves the durability of the blowout nozzle and increases the service life of the blast furnace blower device. Furthermore, the temperature increase in the central area S2 of the present disclosure (compared to FIG. 2A) shows a concentration of heat sources and an increase in the range of heat sources, which provides a better blast combustion temperature. Based on the foregoing, the flow guidance structure 120 included in the present disclosure may have better blast furnace blowout combustion temperature.

[0027] In other embodiments, for further optimization, the nozzle distance P1, the flow guidance depth R1, or the nozzle angle A1 of the fuel nozzle area 116 can be further adjusted.

[0028] FIG. 3 is a schematic diagram of another embodiment of the blast furnace blower device of the present disclosure. Please refer to FIG. 3. Compared with the blast furnace blower device 100 in FIG. 1, the blast furnace blower device 200 of the present disclosure further includes a cooling module 250. The cooling module 250 is disposed outside the body 110. The cooling module 250 is, for example, a water channel, provides cooling.

[0029] In summary, the blast furnace blower device of the present disclosure provides a flow guidance structure located around the inner wall of the body, so that these gases, mixed combustion gases, or fluids, are directed by the flow guidance structure to the center of the channel. It may improve the problem of heat damage caused by heat accumulation on the wall surface of the inner wall of the blast furnace blower device, and provide a better blast furnace blowout combustion temperature.

[0030] A blast furnace blower device provided by the embodiments of the present disclosure may have a better blast furnace blowout combustion temperature. At the same time, it may also improve the thermal damage problem caused by heat accumulation on the wall surface of the blast furnace blower device, improve the durability of the blowout nozzle, and increase the service life of the blast furnace blower device.

[0031] Based on the foregoing, the blast furnace blower device of the present disclosure provides a flow guidance structure located around the inner wall of the body, so that these gases, mixed combustion gases, or fluids, are directed by the flow guidance structure to the center of the channel. It may improve the problem of heat damage caused by heat accumulation on the wall surface of the inner wall of the blast furnace blower device, and provide a better blast furnace blowout combustion temperature.

[0032] Although the disclosure has been disclosed in the form of embodiments, it is not intended to limit the present disclosure. Anyone with general knowledge in the field of technology may make some changes and modifications without departing from the spirit and scope of the present disclosure, and therefore the scope of protection of the disclosure shall be subject to the scope of the patent application attached hereto.