Blast furnace ironmaking waste residue cooling device

Abstract

The utility model discloses a blast furnace ironmaking waste residue cooling device which comprises a waste residue heat dissipation disc and a heat dissipation cover, and further comprises a heat absorption device which is installed at the top of the heat dissipation cover and used for absorbing heat, and the heat absorption device comprises a water guide hole plate, a recovery pipe and a recovery water tank; the cooling device is arranged at the top of the heat absorption device and comprises a middle heat conduction pipe, branch heat conduction pipes and a cooling flow guide plate; an external heat dissipation module is further arranged on the outer top of the heat dissipation cover. The external heat dissipation module comprises a transverse loop heat pipe, a longitudinal loop heat pipe and a heat transfer pipe. The utility model belongs to the technical field of related steelmaking equipment, and particularly provides a blast furnace ironmaking waste slag cooling device which is used for solving the problems that only air cooling fan blades are adopted for cooling, the cooling efficiency is low and the cooling effect is not good enough in the prior art.

Description

Technical Field

[0001] The utility model belongs to the technical field of steelmaking related equipment, in particular to a blast furnace ironmaking waste slag cooling device. Background Art

[0002] Steel mills produce a variety of byproducts and waste slag during the steelmaking process, among which steel slag and blast furnace slag account for the largest output. Since blast furnace slag is produced during the blast furnace ironmaking process and is in a molten state at a temperature of about 1500°C when discharged from the blast furnace, the natural cooling speed is slow, and the large-scale equipment used in existing technologies for cooling is costly and difficult to maintain.

[0003] The Chinese utility model patent with reference application number CN202320659479.4 discloses a blast furnace ironmaking waste slag cooling device, which uses the rotation of blades to inhale external air to quickly cool the slag inside the slag heat sink. Due to the high slag problem, the cooling rate of the air cooling heat dissipation in the above solution is too slow, and there is a problem of insufficient cooling effect. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a blast furnace ironmaking waste slag cooling device, which is used to solve the problem that the prior art only uses air-cooled fan blades for cooling, and the cooling efficiency is slow and the cooling effect is not good enough.

[0005] The technical solutions adopted in this application are as follows:

[0006] The present invention provides a blast furnace ironmaking waste slag cooling device, comprising a waste slag heat sink and a heat sink, wherein the waste slag heat sink is mounted on the inner bottom of the heat sink through a mounting frame, and the heat sink is provided with openings on both upper and lower sides;

[0007] This program also includes:

[0008] A heat absorbing device is installed on the top of the heat dissipation cover for absorbing heat;

[0009] The heat absorption device includes a water guide hole plate, a recovery pipe and a recovery water tank. The water guide hole plate is arranged on the inner top of the heat dissipation cover, and water guide holes are evenly opened on the water guide hole plate. A water collecting ring pipe is arranged between the outer periphery of the water guide hole plate and the inner wall of the heat dissipation cover. The water collecting ring pipe is connected to the outer periphery of the water guide hole plate and is provided with water collecting holes. The recovery water tank is open and arranged on the outer top of the heat dissipation cover. The recovery pipe is connected between the water collecting ring pipe and the recovery water tank.

[0010] In the preferred embodiment, the water guide orifice plate is in an arch shape that bulges upward at the center, the water collecting ring pipe is located at the lower end of the outer periphery of the water guide orifice plate, and the recovery pipe is in an η shape. A suction nozzle is provided on one side of the short end of the recovery pipe to penetrate the water collecting ring pipe for receiving condensed water, and one side of the long end of the recovery pipe is provided above the recovery water tank, wherein a recovery pump is provided on the recovery pipe.

[0011] As a preferred solution, the present solution further comprises a cooling device disposed on the top of the heat absorbing device, the cooling device being connected to the heat absorbing device for cooperating in cooling work;

[0012] The cooling device comprises a central heat pipe, a branch heat pipe and a cooling guide plate, wherein the central heat pipe is arranged parallel to the top of the water collecting ring pipe, and the central heat pipe is arranged tangent to the inner wall of the heat dissipation cover, the inner side of the central heat pipe is connected to an inner extending heat pipe distributed in a circular array, the free end of the inner extending heat pipe is arranged near the center of the water collecting ring pipe, the branch heat pipe runs through the inner extending heat pipe, and the branch heat pipe is arranged on both sides of the inner extending heat pipe, the cooling guide plate is arranged below the branch heat pipe, and the cooling guide plate is arranged at Above the water guide hole plate, wherein the cooling guide plate is arranged in a V-shaped structure, and a semiconductor refrigeration sheet is arranged inside the cooling guide plate, the side of the semiconductor refrigeration sheet attached to the bottom of the cooling guide plate is a cooling surface, and the side attached to the top of the cooling guide plate is a heating surface, when the hot air moves upward from the water guide hole plate, it contacts the cooling surface at the bottom of the cooling guide plate and condenses into liquid, the outer free end of the cooling guide plate is bent downward, and turbulence is formed along the bending parts on both sides of the cooling guide plate, thereby improving the heat exchange efficiency and promoting the cooling efficiency.

[0013] In a preferred embodiment, an external heat dissipation module is also provided on the outer top of the heat dissipation cover, and the external heat dissipation module includes a horizontal loop heat pipe, a vertical heat pipe and a transfer heat pipe. The horizontal loop heat pipe is arranged in a ring shape and multiple groups are evenly arranged in the vertical direction. The vertical heat pipe passes through and is connected between the horizontal loop heat pipes arranged longitudinally. One end of the transfer heat pipe passes through the horizontal loop heat pipe arrangement, and the other end of the transfer heat pipe is connected to the middle heat conduction pipe. External cold air blows on the outside of the heat dissipation hood, which reduces the temperature of the horizontal ring heat pipe and the longitudinal heat pipe, and is transferred to the middle heat pipe through the transfer heat pipe. The middle heat pipe cools the cooling guide plate through the inner extension heat pipe and the branch heat pipe. In a further scheme, semiconductor refrigeration plates are used to cool the bottom of the cooling guide plate. The low-temperature cooling guide plate cools and condenses water vapor, and the condensed droplets drip from the bottom of the cooling guide plate onto the water guide hole plate. The water is collected to the lower water collection ring pipe through the ramp. The water in the water collection ring pipe enters the recovery water tank through the water suction nozzle and the recovery pipe under the action of the recovery pump.

[0014] In a further solution, a spray cooling component is provided between the recovery water tank and the water guide orifice plate, and the spray cooling component includes a water pipe connected between the recovery water tank and the water guide orifice plate, a nozzle is provided on the lower side of the water guide orifice plate, and a water pump is provided on the side of the water pipe close to the recovery water tank, so that the condensed water collected in the recovery water tank is used to perform secondary spray cooling on the heat source below.

[0015] As a further solution, a hanging rod is provided at the bottom lower end of the water guide hole plate, and a cooling fan is installed on the hanging rod. The cooling fan is arranged at the vertical center of the heat dissipation cover. The cooling fan guides the hot air below to the water guide hole plate above, thereby further improving the heat dissipation efficiency.

[0016] As a preferred solution, a fixing piece is provided between the outer periphery of the waste residue heat sink and the inner wall of the heat sink, which is used to fix the position of the waste residue heat sink to facilitate heat dissipation.

[0017] In a preferred embodiment, a feed port is provided on one side of the heat dissipation cover relative to the top of the waste slag heat dissipation plate for feeding the waste slag, and a discharge pump is also provided on the heat dissipation cover for pumping out the cooled material.

[0018] In a further solution, the heat dissipation hood is arranged in a trumpet shape, and the middle section of the heat dissipation hood shrinks inward and transitions evenly to form a tube structure that is small at the top and large at the bottom. When the hot air goes upward, the diameter becomes smaller and smaller, the flow rate becomes faster, and the hot air is discharged more smoothly, which is convenient for improving the heat dissipation efficiency. The lower end of the heat dissipation hood is evenly distributed with support feet, which are directly fixed to the ground by the support feet when in use, and the support feet can be directly used as counterweights.

[0019] As a preferred solution, the support legs are oblique support legs, and the support legs are extended downward with respect to the curvature of the heat dissipation cover to improve stability in use.

[0020] The beneficial effects achieved by the utility model using the above structure are as follows:

[0021] 1. The heat absorption device located on the top of the heat dissipation cover is used to absorb heat. The cooling device is used to recover condensed water while cooling. When the hot air moves upward from the water guide plate, it contacts the cooling surface at the bottom of the cooling guide plate and condenses into liquid, forming turbulence along the bends on both sides of the cooling guide plate, thereby improving heat exchange efficiency and promoting cooling efficiency.

[0022] 2. By utilizing the setting of the external heat dissipation module and borrowing the external cold air to achieve the cooling effect, combined with the setting of the spray cooling component, the condensed water is used to perform secondary cooling on the heat source below, which greatly improves the cooling efficiency and effect.

[0023] 3. Use a hanger to add a cooling fan to the waste slag heat sink, and further improve the cooling effect by adding air cooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The overall structural diagram of a blast furnace ironmaking waste slag cooling device provided in this scheme;

[0025] Figure 2 The internal structure of this scheme is shown in Figure 1. Figure 1 ;

[0026] Figure 3 The internal structure of this scheme is shown in Figure 1. Figure 2 ;

[0027] Figure 4 for Figure 1 A partial enlarged schematic diagram of part A;

[0028] Figure 5 for Figure 1 A partial enlarged schematic diagram of part B;

[0029] Figure 6 Schematic diagram of the internal structure of the cooling guide plate in this scheme.

[0030] The meanings of the numbers in the accompanying drawings are as follows:

[0031] 1. Waste residue heat sink, 2. Heat sink, 3. Heat absorption device, 4. Cooling device, 5. External heat dissipation module, 6. Spray cooling component, 7. Hanging rod, 8. Cooling fan;

[0032] 11. Fixing parts;

[0033] 21. Feed inlet, 22. Discharge pump, 23. Support foot;

[0034] 31. water guide orifice plate, 32. recovery pipe, 33. recovery water tank, 34. water collecting ring pipe, 35. recovery pump, 36. water suction nozzle;

[0035] 41. middle heat pipe, 42. branch heat pipe, 43. cooling guide plate, 44. inner extension heat pipe, 45. semiconductor cooling sheet;

[0036] 51. Horizontal loop heat pipe, 52. Vertical heat pipe, 53. Transfer heat pipe;

[0037] 61. Water pipe, 62. Nozzle, 63. Water pump.

[0038] Figure 6 In the figure, a is the cooling surface and b is the heating surface. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0040] Example 1

[0041] Please refer to Figure 1 As shown, this embodiment provides a blast furnace ironmaking waste slag cooling device, including a waste slag heat sink 1 and a heat sink 2. The waste slag heat sink 1 is installed on the inner bottom of the heat sink 2 through a mounting frame. The lower end of the heat sink 2 is evenly distributed with support legs 23. When in use, it is directly fixed on the ground through the support legs 23. The support legs 23 can be directly used as a counterweight. Among them, the support legs 23 are oblique support legs, and the support legs 23 are extended downward with respect to the curvature of the heat sink 2 to improve the stability of use.

[0042] like Figure 2 As shown, the upper and lower sides of the heat dissipation cover 2 are both opened, and the heat dissipation cover 2 is arranged in a trumpet shape. The middle section of the heat dissipation cover 2 shrinks inward evenly to form a tube structure that is small at the top and large at the bottom. When the hot air goes upward, the diameter becomes smaller and smaller, the flow rate becomes faster, and the hot air is discharged more smoothly, which is conducive to improving the heat dissipation efficiency.

[0043] Combination Figure 2 and Figure 3 As shown, a fixing member 11 is provided between the outer periphery of the waste residue heat sink 1 and the inner wall of the heat sink cover 2, which is used to fix the position of the waste residue heat sink 1 to facilitate heat dissipation.

[0044] When the utility model is used, a feeding port 21 is provided on one side of the heat dissipation cover 2 about the top of the waste slag heat dissipation plate 1 for feeding the waste slag. At the same time, a discharge pump 22 is also provided on the heat dissipation cover 2 for pumping out the cooled material, thus realizing the material in and out work.

[0045] As an example to further illustrate:

[0046] This embodiment includes a heat absorbing device 3 installed on the top of the heat dissipation cover 2 for absorbing heat;

[0047] like Figure 3 As shown, the heat absorption device 3 includes a water guide hole plate 31, a recovery pipe 32 and a recovery water tank 33. The water guide hole plate 31 is arranged at the inner top of the heat dissipation cover 2. Water guide holes are evenly opened on the water guide hole plate 31. A water collecting ring pipe 34 is arranged between the outer periphery of the water guide hole plate 31 and the inner wall of the heat dissipation cover 2. The water collecting ring pipe 34 and the outer periphery of the water guide hole plate 31 are connected with water collecting holes. The recovery water tank 33 is open and arranged at the outer top of the heat dissipation cover 2. The recovery pipe 32 is connected between the water collecting ring pipe 34 and the recovery water tank 33.

[0048] In the preferred embodiment, the water guide orifice plate 31 is arranged in an arch shape with a protrusion at the center, the water collecting ring pipe 34 is located at the lower end of the outer periphery of the water guide orifice plate 31, and the recovery pipe 32 is arranged in an η shape. A water suction nozzle 36 is provided on one side of the short end of the recovery pipe 32 for penetrating the water collecting ring pipe 34 to receive condensed water, and one side of the long end of the recovery pipe 32 is arranged above the recovery water tank 33, wherein a recovery pump 35 is provided on the recovery pipe 32.

[0049] As an example to further illustrate:

[0050] This embodiment includes a cooling device 4 disposed on the top of the heat absorbing device 3. The cooling device 4 is connected to the heat absorbing device 3 for cooperating in cooling work.

[0051] refer to Figure 3 and Figure 4 As shown, the cooling device 4 includes a middle heat pipe 41, a branch heat pipe 42 and a cooling guide plate 43. The middle heat pipe 41 is arranged parallel to the top of the water collecting ring pipe 34, and the middle heat pipe 41 is arranged tangent to the inner wall of the heat dissipation cover 2. The inner side of the middle heat pipe 41 is connected to the inner extending heat pipe 44 distributed in a circular array. The free end of the inner extending heat pipe 44 is arranged near the center of the water collecting ring pipe 34. The branch heat pipe 42 passes through the inner extending heat pipe 44, and the branch heat pipe 42 is arranged on both sides of the inner extending heat pipe 44. The cooling guide plate 43 is arranged below the branch heat pipe 42, and the cooling guide plate 43 is arranged above the water guide hole plate 31.

[0052] Combination Figure 6 As shown, the cooling guide plate 43 is arranged in a V-shaped structure, and a semiconductor cooling plate 45 is arranged inside the cooling guide plate 43. The side of the semiconductor cooling plate 45 attached to the bottom of the cooling guide plate 43 is the cooling surface, and the side attached to the top of the cooling guide plate 43 is the heating surface.

[0053] When using this structure, the heat absorption device 3 located on the top of the heat dissipation cover 2 is used to absorb heat, and the setting of the cooling device 4 is used to realize the recovery of condensed water while cooling. When the hot air moves upward from the water guide hole plate 31, it contacts the refrigeration surface at the bottom of the cooling guide plate 43 and condenses into liquid. The outer free end of the cooling guide plate 43 is bent downward to form turbulence along the bending parts on both sides of the cooling guide plate 43, thereby improving the heat exchange efficiency and promoting the cooling efficiency.

[0054] As an example to further illustrate:

[0055] like Figure 5As shown, an external heat dissipation module 5 is also provided on the outer top of the heat dissipation cover 2. The external heat dissipation module 5 includes a horizontal loop heat pipe 51, a vertical heat pipe 52 and a transfer heat pipe 53. The horizontal loop heat pipe 51 is arranged in a ring shape and multiple groups are evenly arranged in the vertical direction. The vertical heat pipe 52 runs through and is connected between the horizontal loop heat pipes 51 arranged in the longitudinal direction. One end of the transfer heat pipe 53 runs through the horizontal loop heat pipe 51, and the other end of the transfer heat pipe 53 is connected to the middle heat conduction pipe 41.

[0056] When the present structure is used, external cold air blows on the outside of the heat dissipation cover 2, so that the temperature of the horizontal heat pipe ring and the longitudinal heat pipe 52 is reduced, and is transferred to the middle heat pipe 41 through the transfer heat pipe 53. The middle heat pipe 41 cools the cooling guide plate 43 through the inner extension heat pipe 44 and the branch heat pipe 42, and the bottom of the cooling guide plate 43 is cooled by the semiconductor refrigeration plate 45. The low-temperature cooling guide plate 43 cools and condenses water vapor, and the condensed droplets drip from the bottom of the cooling guide plate 43 onto the water guide hole plate 31. The water is collected to the lower water collection ring pipe 34 through the ramp. The water in the water collection ring pipe 34 enters the recovery water tank 33 through the water suction nozzle 36 and the recovery pipe 32 under the action of the recovery pump 35.

[0057] By utilizing the setting of the external heat dissipation module 5, the external cold wind is used to achieve the cooling effect. Combined with the setting of the spray cooling component 6, the condensed water is used to perform secondary cooling on the heat source below, which greatly improves the cooling efficiency and effect.

[0058] As an example to further illustrate:

[0059] like Figure 2 As shown, a spray cooling component 6 is also provided between the recovery water tank 33 and the water guide orifice plate 31. The spray cooling component 6 includes a water pipe 61 connected between the recovery water tank 33 and the water guide orifice plate 31. A nozzle 62 is provided on the lower side of the water guide orifice plate 31 of the water pipe 61. A water pump 63 is provided on the side of the water pipe 61 close to the recovery water tank 33, so that the heat source below is cooled for the second time by spraying condensed water.

[0060] As an example to further illustrate:

[0061] like Figure 3 As shown, a suspension rod 7 is provided at the bottom lower end of the water guide hole plate 31, and a cooling fan 8 is installed on the suspension rod 7. The cooling fan 8 is arranged at the vertical center of the heat dissipation cover 2. The cooling fan 8 guides the hot air below to the water guide hole plate 31 above, thereby further improving the heat dissipation efficiency.

[0062] When the present structure is used, a cooling fan 8 is added to the waste residue heat sink 1 by using the suspension rod 7, and the cooling effect is further improved by adding air cooling.

[0063] It should be noted that although the embodiments of the utility model have been shown and described, for ordinary technicians in this field, without departing from the inventive purpose of the utility model, structural methods and embodiments similar to the technical scheme without creative design should all fall within the scope of protection of the utility model.

Claims

1. A blast furnace ironmaking waste slag cooling device, comprising a waste slag heat sink (1) and a heat sink (2), wherein the waste slag heat sink (1) is mounted on the inner bottom of the heat sink (2) through a mounting frame, and the heat sink (2) is provided with openings on both upper and lower sides, characterized in that: Also includes: A heat absorbing device (3) installed on the top of the heat dissipation cover (2) for absorbing heat; The heat absorption device (3) comprises a water guide hole plate (31), a recovery pipe (32) and a recovery water tank (33); the water guide hole plate (31) is arranged at the inner top of the heat dissipation cover (2); a water collection ring pipe (34) is arranged between the outer periphery of the water guide hole plate (31) and the inner wall of the heat dissipation cover (2); the recovery water tank (33) is open and arranged at the outer top of the heat dissipation cover (2); the recovery pipe (32) is arranged in communication between the water collection ring pipe (34) and the recovery water tank (33); A cooling device (4) is arranged on the top of the heat absorbing device (3), and the cooling device (4) is connected to the heat absorbing device (3); The cooling device (4) comprises a central heat conducting pipe (41), branch heat conducting pipes (42) and a cooling guide plate (43); the central heat conducting pipe (41) is arranged parallel to the top of the water collecting ring pipe (34), and the central heat conducting pipe (41) is arranged tangent to the inner wall of the heat dissipation cover (2); the inner side of the central heat conducting pipe (41) is connected to an inner extending heat conducting pipe (44) arranged in a circular array; the free end of the inner extending heat conducting pipe (44) is arranged close to the center of the water collecting ring pipe (34); the branch heat conducting pipe (42) penetrates the inner extending heat conducting pipe (44), and the branch heat conducting pipe (42) is arranged on both sides of the inner extending heat conducting pipe (44); and the cooling guide plate (43) is arranged below the branch heat conducting pipe (42).

2. The blast furnace ironmaking waste slag cooling device according to claim 1, characterized in that: The outer top of the heat dissipation cover (2) is also provided with an external heat dissipation module (5), and the external heat dissipation module (5) comprises a horizontal loop heat pipe (51), a vertical heat pipe (52) and a transfer heat pipe (53). The horizontal loop heat pipe (51) is arranged in a ring shape and multiple groups are evenly arranged in the vertical direction. The vertical heat pipe (52) penetrates and communicates between the horizontal loop heat pipes (51) arranged in the longitudinal direction. One end of the transfer heat pipe (53) penetrates the horizontal loop heat pipe (51) and the other end of the transfer heat pipe (53) is connected to the middle heat conduction pipe (41).

3. The blast furnace ironmaking waste slag cooling device according to claim 2, characterized in that: The cooling guide plate (43) is arranged in a V-shaped structure, and a semiconductor refrigeration plate (45) is arranged inside the cooling guide plate (43). The side of the semiconductor refrigeration plate (45) attached to the bottom of the cooling guide plate (43) is a cooling surface, and the side attached to the top of the cooling guide plate (43) is a heating surface. When hot air moves upward from the water guide hole plate (31), it contacts the cooling surface at the bottom of the cooling guide plate (43) and condenses into liquid. The outer free end of the cooling guide plate (43) is bent downward, and turbulence is formed along the bending parts on both sides of the cooling guide plate (43).

4. The blast furnace ironmaking waste slag cooling device according to claim 1, characterized in that: The water guide orifice plate (31) is arranged in an arch shape with a center portion protruding upward, the water collecting ring pipe (34) is located at the lower end of the outer periphery of the water guide orifice plate (31), the recovery pipe (32) is arranged in an n-shape, a water suction nozzle (36) is provided on one side of the short end of the recovery pipe (32) for penetrating the water collecting ring pipe (34), a long end of the recovery pipe (32) is arranged above the recovery water tank (33), and a recovery pump (35) is provided on the recovery pipe (32).

5. The blast furnace ironmaking waste slag cooling device according to claim 4, characterized in that: A spray cooling component (6) is also provided between the recovery water tank (33) and the water guide orifice plate (31), and the spray cooling component (6) comprises a water guide pipe (61) connected between the recovery water tank (33) and the water guide orifice plate (31), a nozzle (62) is provided on the side of the water guide pipe (61) below the water guide orifice plate (31), and a water pump (63) is provided on the side of the water guide pipe (61) close to the recovery water tank (33), so that the condensed water collected in the recovery water tank (33) is used to perform secondary spray cooling on the heat source below.

6. The blast furnace ironmaking waste slag cooling device according to claim 1, characterized in that: A suspension rod (7) is provided at the bottom lower end of the water guide hole plate (31), and a cooling fan (8) is installed at the suspension rod (7). The cooling fan (8) is arranged at the vertical center of the heat dissipation cover (2), and the cooling fan (8) guides the hot air below to the water guide hole plate (31) above.

7. The blast furnace ironmaking waste slag cooling device according to claim 1, characterized in that: A fixing member (11) is provided between the outer periphery of the waste residue heat dissipation disk (1) and the inner wall of the heat dissipation cover (2), a feed inlet (21) is provided on one side of the heat dissipation cover (2) relative to the top of the waste residue heat dissipation disk (1), and a discharge pump (22) is also provided on the heat dissipation cover (2).

8. The blast furnace ironmaking waste slag cooling device according to claim 4, characterized in that: The water guide hole plate (31) is evenly provided with water guide holes, the water collecting ring pipe (34) is connected to the outer periphery of the water guide hole plate (31) and is provided with water collecting holes, and the cooling guide plate (43) is arranged above the water guide hole plate (31).

9. The blast furnace ironmaking waste slag cooling device according to claim 1, characterized in that: The heat dissipation cover (2) is arranged in a trumpet shape, the middle section of the heat dissipation cover (2) shrinks inwards and transitions evenly to form a tube structure that is small at the top and large at the bottom, and the lower end of the heat dissipation cover (2) is evenly distributed with support feet (23).

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