Lifting appliance for partial replacement of blast furnace shell

Abstract

The utility model relates to the field of blast furnace shell replacement, and discloses a lifting appliance for partial replacement of a blast furnace shell, which comprises a lifting beam, the lifting beam is used for mounting a lifting mechanism capable of moving along the lifting beam, the lifting beam comprises an annular section and an extension section, the annular section is provided with a notch, and two end parts of the annular section are formed at the notch; the extension section extends outwards from any end part of the annular section and is configured to extend out of the blast furnace through a material inlet / outlet in a furnace shell of the blast furnace; and the multiple brackets are distributed in the circumferential direction of the annular section and used for connecting the annular section to the inner wall of the blast furnace shell. According to the utility model, related components can be quickly and effectively transferred between the inside and the outside of the furnace, and through the special structural design of the bracket, better connection strength can be realized under the condition that fewer materials are adopted.

Description

Technical Field

[0001] The utility model relates to the technical field of blast furnace shell replacement, in particular to a hanger for partial replacement of a blast furnace shell. Background Art

[0002] In some cases, such as Figure 1 As shown, it is necessary to partially replace the cooling wall and shell of the blast furnace (for example, replace Figure 1 The part indicated by the replacement area in the figure, such as the cooling wall of the 6th to 12th sections and the furnace shell of the 6th to 11th sections along the height direction of the blast furnace), is difficult to control due to the high technical difficulty and high safety risk of online partial replacement of the blast furnace shell, especially how to hoist and remove the internal components of the blast furnace and transfer them out effectively and safely. For the partial replacement scheme of the blast furnace shell, it is necessary to study a hoist that can quickly and effectively transfer the removed components from the furnace to the outside and / or transfer the components to be replaced from the outside to the furnace. Utility Model Content

[0003] The main purpose of the utility model is to provide a lifting device for partial replacement of a blast furnace shell, so as to solve the problem of how to quickly and effectively transfer relevant components between the inside and outside of the furnace in a partial replacement scheme of the blast furnace shell.

[0004] According to one aspect of the utility model, a lifting device for partial replacement of a blast furnace shell is provided, comprising:

[0005] A hanging beam, the hanging beam is used to install a hanging mechanism that can move along it, the hanging beam includes an annular section and an extension section, the annular section has a notch and two ends of the annular section are formed at the notch, and the extension section extends outward from any end of the annular section and is configured to extend out of the blast furnace through a material inlet and outlet port on the blast furnace shell;

[0006] A plurality of brackets are distributed along the circumference of the ring segment and are used to connect the ring segment to the inner wall of the blast furnace shell.

[0007] According to one embodiment of the utility model, each bracket includes a main body having a duck-head-shaped cross-section, a head of the main body connected to the suspension beam, and a tail of the main body used to connect to the inner wall of the blast furnace shell.

[0008] According to an embodiment of the utility model, in the cross section, the lower profile of the head has a horizontal straight line for cooperating with the suspension beam, and the upper profile of the head has a vertical line, an arc line and a horizontal line that transition smoothly in sequence.

[0009] According to one embodiment of the present invention, in the cross section, the neck of the main body is S-shaped.

[0010] According to an embodiment of the present invention, in the cross section, the upper profile and the lower profile of the tail portion both have horizontal straight lines, and the side profile of the tail portion has an oblique line for matching with the inner wall of the blast furnace shell.

[0011] According to one embodiment of the utility model, each bracket comprises:

[0012] Two main bodies arranged opposite to each other;

[0013] A head connecting plate, connecting the heads of the two main bodies and connected to the hanging beam;

[0014] The tail connecting plate connects the tails of the two main parts and is used to connect with the inner wall of the blast furnace shell.

[0015] According to an embodiment of the present invention, each bracket further comprises a neck connecting plate, and the neck connecting plate connects the necks of the two main body parts.

[0016] According to one embodiment of the utility model, the head connecting plate is welded to the suspension beam, and the tail connecting plate is detachably connected to the inner wall of the blast furnace shell by fasteners.

[0017] According to an embodiment of the present utility model, the extension section includes a straight portion and a curved portion, and the straight portion smoothly transitions to the annular section through the curved portion.

[0018] According to an embodiment of the utility model, the sling further comprises one or more sling mechanisms movable along the sling beam.

[0019] In the technical solution of the utility model, the hanging beam includes an annular section and an extension section extending outward from either end of the annular section, the annular section is installed to the inner wall of the blast furnace shell through a plurality of brackets distributed along the circumferential direction, and the extension section can extend out of the blast furnace through the inlet and outlet ports on the blast furnace shell, so that the hanging mechanism can move in the circumferential direction of the blast furnace along the annular section and can also move outside the blast furnace along the extension section, so that the dismantled components at different positions in the furnace can be quickly and conveniently transferred to the outside of the furnace safely and effectively, and the components to be replaced can be transferred from the outside of the furnace to different positions in the furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings required for use in the embodiment will be briefly introduced below. Obviously, the drawings described below are only some implementation cases of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A schematic diagram showing a partial replacement area of ​​a blast furnace shell according to an embodiment of the utility model is shown;

[0022] Figure 2 Shown is a general schematic diagram of a spreader according to an embodiment of the utility model;

[0023] Figure 3 A cross-sectional view of a spreader according to an embodiment of the utility model is shown;

[0024] Figure 4 A schematic diagram showing a perspective of a bracket according to an embodiment of the utility model;

[0025] Figure 5 A schematic diagram showing another viewing angle of the bracket according to an embodiment of the utility model;

[0026] Figure 6 A schematic diagram showing the main body of a bracket according to an embodiment of the utility model.

[0027] Description of reference numerals:

[0028] 1. blast furnace shell; 2. inlet and outlet; 10. hanging beam; 12. ring section; 13. notch; 14. extension section; 20. bracket; 22. main body; 222. head; 224. neck; 226. tail; 24. head connecting plate; 26. tail connecting plate; 27. fastener; 28. neck connecting plate; 100. sling. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the embodiments of the present invention are further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] refer to Figure 2 and Figure 3The utility model proposes a hanger 100 for partial replacement of a blast furnace shell, comprising: a hanging beam 10, the hanging beam 10 is used to install a hanging mechanism that can move along it, the hanging beam 10 comprises an annular segment 12 and an extension segment 14, the annular segment 12 has a notch 13 and two ends of the annular segment are formed at the notch, the extension segment 14 extends outward from any end of the annular segment 12 and is configured to extend to the outside of the blast furnace through a material inlet and outlet port 2 on the blast furnace shell 1; a plurality of brackets 20, the plurality of brackets 20 are distributed along the circumference of the annular segment 12 and are used to connect the annular segment 12 to the inner wall of the blast furnace shell 1.

[0032] In the technical solution of the utility model, the hanging beam 10 includes an annular segment 12 and an extension segment 14 extending outward from either end of the annular segment 12, the annular segment 12 is installed to the inner wall of the blast furnace shell 1 through a plurality of brackets 20 distributed along the circumferential direction, and the extension segment 14 can extend out of the blast furnace through the inlet and outlet port 2 on the blast furnace shell 1, so that the lifting mechanism (such as an electric hoist) can move in the circumferential direction of the blast furnace along the annular segment 12 and can also move to the outside of the blast furnace along the extension segment 14, so that the removed components at different circumferential positions in the furnace can be quickly and conveniently transferred to the outside of the furnace safely and effectively, and the components to be replaced can be transferred from the outside of the furnace to different circumferential positions in the furnace.

[0033] refer to Figure 2 , for ease of description, in Figure 2 The four directions of east, south, west and north are introduced, but it should be understood that the structure described in this application is not limited to Figure 2 The orientation shown in Figure 2 In the embodiment shown, a material inlet and outlet port 2 may be opened on the south side of the blast furnace shell 1, and the north side of the blast furnace shell 1 may be the hot blast furnace side. The annular segment 12 of the suspension beam 10 is installed to the inner wall of the blast furnace shell 1 through a plurality of brackets 10 evenly distributed along the circumference. The annular segment 12 forms a notch 13 on the south side, and the extension segment 14 extends outward from one end of the annular segment 12 at the notch 13, passes through the material inlet and outlet port 2 and extends to the outside of the blast furnace in the south direction. Although Figure 2 It is shown that the extension section 14 extends southward, but those skilled in the art should understand that the extension direction of the extension section 14 can be set according to actual conditions, as long as the extension section 14 can be extended outside the blast furnace.

[0034] refer to Figure 2 The cross section of the hanging beam 10 is roughly 9-shaped. In some embodiments, the extension section 14 may include a straight portion and a curved portion, and the straight portion smoothly transitions with the annular section 12 through the curved portion, ensuring that the hanging mechanism can smoothly move along the hanging beam 10 between the furnace and the outside of the furnace.

[0035] In some embodiments, the sling 100 of the present invention further includes one or more sling mechanisms that can move along the sling beam 10. A track for guiding the movement of the sling mechanism can be provided on the sling beam 10. The sling mechanism can move along the track through a sliding member (such as a slider) or a rolling member (such as a roller).

[0036] refer to Figure 4 and Figure 6 In some embodiments, each bracket 20 includes a main body 22, the main body 22 has a duck-head-shaped cross section, the head 222 of the main body 22 is connected to the suspension beam 10, and the tail 226 of the main body 22 is used to connect to the inner wall of the blast furnace shell 1. The main body 22 of this special structure can ensure a better connection strength while using less material, ensuring that the suspension beam 10 is firmly installed on the inner wall of the blast furnace shell 1 and can withstand a certain lifting force. The main body 22 has a smooth outline as a whole, and has a tendency to bend downward from the head 222 to the tail 226.

[0037] refer to Figure 4 and Figure 6 In the above cross section, the lower profile of the head 222 has a horizontal straight line for matching with the suspension beam 10, and the upper profile of the head 222 has a vertical line, an arc line and a horizontal line that transition smoothly in sequence. The suspension beam 12 can be an I-beam, and the horizontal straight line lower profile of the head 222 is suitable for perfectly matching with the flush upper surface of the suspension beam 12. The vertical line and the horizontal line of the upper profile of the head 222 smoothly transition through the arc line therebetween, which can ensure mechanical strength while saving materials.

[0038] refer to Figure 4 and Figure 6 In the above cross section, the neck 224 of the main body 22 is S-shaped. The upper contour of the neck 224 may include a first arc line and a second arc line that transition smoothly in sequence, and a small oblique line may be connected between the first arc line and the second arc line. The upper contour of the neck 224 is generally a smooth S-shaped line. The lower contour of the neck 224 may include an oblique line and an arc line that transition smoothly in sequence. The structural design of the neck 224 is conducive to improving the mechanical strength.

[0039] refer to Figure 4 and Figure 6 In the above cross section, the upper and lower contours of the tail 226 are both horizontal straight lines, and the side contour of the tail 226 has an oblique line for matching with the inner wall of the blast furnace shell 1. The upper contour of the tail 226 is shorter than the lower contour, and the upper end of the side contour of the tail 226 is inclined outward toward the lower end. The structural design of the tail 226 is conducive to improving the mechanical strength.

[0040] refer to Figures 4 to 6In some embodiments, each bracket 20 includes: two main bodies 22 arranged opposite to each other; a head connecting plate 24, connecting the heads 222 of the two main bodies 22 and connecting to the hanging beam 10; and a tail connecting plate 26, connecting the tails 226 of the two main bodies 22 and used to connect to the inner wall of the blast furnace shell 1. The use of two main bodies 22 arranged opposite to each other is conducive to reducing weight and saving materials, and each main body 22 can use a plate with a smaller thickness. The heads 222 and tails 226 of the two main bodies 22 are connected by the head connecting plate 24 and the tail connecting plate 26 respectively, so as to realize the integrity of the bracket 20, and the head connecting plate 24 is also used to realize the connection between the bracket 20 and the hanging beam 10, and the tail connecting plate 26 is also used to realize the connection between the bracket 20 and the inner wall of the blast furnace shell 1.

[0041] refer to Figures 4 to 6 In some embodiments, each bracket 20 further includes a neck connecting plate 28, which connects the necks 224 of the two main bodies 22 to further enhance the connection strength between the two main bodies 22. The neck connecting plate 28 can be clamped between the two main bodies 22, or welded to the two main bodies 22. The bracket 20 can be made of steel.

[0042] refer to Figures 4 to 6 In some embodiments, the head connecting plate 24 can be welded to the horizontal straight lower contour of the head 222 of the two main body parts 22, and further welded to the suspension beam 10. The tail connecting plate 26 can be welded to the oblique side contour of the tail 226 of the two main body parts 22, and further detachably connected to the inner wall of the blast furnace shell 1 through a fastener 27 (such as a threaded fastener such as a bolt or a screw). A connection hole for matching with the fastener 27 can be provided in the middle area of ​​the tail connecting plate 26.

[0043] Those skilled in the art should understand that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the disclosure of the embodiments of the utility model (including the claims) is limited to these examples; under the idea of ​​the embodiments of the utility model, the technical features in the above embodiments or different embodiments can also be combined, and there are many other changes in different aspects of the above embodiments of the utility model, which are not provided in detail for the sake of simplicity. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the utility model should be included in the protection scope of the embodiments of the utility model.

Claims

1. A lifting device (100) for partial replacement of a blast furnace shell, characterized in that: include: A hanging beam (10), the hanging beam (10) being used to install a hanging mechanism that can move along the hanging beam (10), the hanging beam (10) comprising an annular section (12) and an extension section (14), the annular section (12) having a notch (13) and forming two ends of the annular section at the notch, the extension section (14) extending outward from any end of the annular section (12) and being configured to extend out of the blast furnace through a material inlet and outlet port (2) on a blast furnace shell (1); A plurality of brackets (20) are distributed along the circumference of the annular segment (12) and are used to connect the annular segment (12) to the inner wall of the blast furnace shell (1).

2. The sling (100) according to claim 1, characterized in that: Each of the brackets (20) comprises a main body (22), the main body (22) having a duck-head-shaped cross-section, a head (222) of the main body (22) being connected to the suspension beam (10), and a tail (226) of the main body (22) being used to be connected to the inner wall of the blast furnace shell (1).

3. The sling (100) according to claim 2, characterized in that: In the cross section, the lower profile of the head (222) has a horizontal straight line for cooperating with the suspension beam (10), and the upper profile of the head (222) has a vertical straight line, a circular arc line, and a horizontal line that transition smoothly in sequence.

4. The sling (100) according to claim 2, characterized in that: In the cross section, the neck (224) of the main body (22) is S-shaped.

5. The sling (100) according to claim 2, characterized in that: In the cross section, the upper profile and the lower profile of the tail portion (226) both have horizontal straight lines, and the side profile of the tail portion (226) has an oblique line for matching with the inner wall of the blast furnace shell (1).

6. The sling (100) according to claim 2, characterized in that: Each of the brackets (20) comprises: Two main body parts (22) arranged opposite to each other; A head connecting plate (24) connecting the heads (222) of the two main body parts (22) and connected to the suspension beam (10); A tail connecting plate (26) connects the tails (226) of the two main bodies (22) and is used to connect to the inner wall of the blast furnace shell (1).

7. The sling (100) according to claim 6, characterized in that: Each of the brackets (20) further comprises a neck connecting plate (28), wherein the neck connecting plate (28) connects the necks (224) of the two main body parts (22).

8. The sling (100) according to claim 6, characterized in that: The head connecting plate (24) is welded to the suspension beam (10), and the tail connecting plate (26) is detachably connected to the inner wall of the blast furnace shell (1) via a fastener (27).

9. The sling (100) according to claim 1, characterized in that: The extension section (14) comprises a straight section and a curved section, and the straight section smoothly transitions to the annular section (12) via the curved section.

10. The sling (100) according to claim 1, characterized in that: It also includes one or more lifting mechanisms that can move along the lifting beam (10).

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