Movable furnace bottom bricklaying tool

Abstract

The utility model provides a movable bricklaying tool for a furnace bottom. By adopting the movable bricklaying tool for the furnace bottom, the bricklaying efficiency of the furnace bottom is remarkably improved. The movable bricklaying tool for the furnace bottom comprises a support and a mounting part capable of rotating relative to the support, the mounting part is provided with a first end wall, and the first end wall is used for being connected with the furnace bottom; the mounting part forms a channel with a side opening, the channel is used for containing refractory bricks, and the channel is perpendicular to the plane where the first end wall is located; the mounting part can rotate between a horizontal position and a vertical position, and in the vertical position, the opening direction of the channel is upward.

Description

Technical Field

[0001] This utility model relates to the technical field of steelmaking converter equipment, specifically to a movable furnace bottom bricklaying fixture. Background Technology

[0002] In the steelmaking industry, the converter, as a key steelmaking equipment, has a significant impact on production efficiency, equipment maintenance, and refractory material replacement due to its shell structure design. Currently, converter shells are mainly divided into two types: integral and split structures. The split structure integrates the furnace body and furnace cap shells, while the furnace bottom uses a movable design. The two shell parts are connected as one unit via flanges. When constructing the inner lining working layer, the converter can be disassembled into two parts and constructed separately. The movable furnace bottom part is constructed on the ground. After both parts are constructed, they are then connected together via flanges.

[0003] In the construction of the movable hearth of a split converter, especially for the laying of refractory bricks, the existing method generally involves placing the hearth horizontally before laying the bricks. While this method is simple and direct, it requires frequent adjustments to the position and angle of the bricks when laying refractory bricks with specific cross-sectional shapes (such as circles or cones) to ensure a tight fit between the bricks and the stability of the overall structure. This process is not only time-consuming and labor-intensive, but also results in low bricklaying efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a movable furnace bottom bricklaying fixture, which significantly improves the bricklaying efficiency of the furnace bottom.

[0005] To achieve the above objectives, this utility model provides a movable furnace bottom bricklaying fixture, which includes a support and a mounting part that can rotate relative to the support. The mounting part has a first end wall for connecting to the furnace bottom. The mounting part forms a channel with a side opening for accommodating refractory bricks, and the channel is perpendicular to the plane of the first end wall. The mounting part can rotate between a horizontal position and a vertical position, and in the vertical position, the opening direction of the channel is upward.

[0006] By using the bricklaying fixture for the movable furnace bottom in this application, the furnace bottom can be connected to the first end wall of the mounting part and driven from a horizontal position to a vertical position. By setting a channel, in the vertical position, the side opening of the channel is oriented upwards, which enables the wall of the channel to support the refractory bricks vertically, thereby significantly improving the bricklaying efficiency of the furnace bottom.

[0007] Optionally, the mounting portion includes an arc-shaped bent wall, which forms the wall of the channel. By providing the arc-shaped bent wall, a channel with a side opening can be formed, thereby limiting the refractory bricks radially and providing vertical support.

[0008] Optionally, the channel has a first opening and a second opening at both ends in its extending direction. The second opening is used to insert refractory bricks. The first opening is located on the first end wall and can be covered by the furnace bottom, conforming to the portion of the area to be bricked on the furnace bottom. In this way, the channel acts as a limit for the refractory bricks, ensuring that the refractory bricks form a structure that matches the area to be bricked on the furnace bottom during insertion into the channel.

[0009] Optionally, the first end wall is provided with a plurality of first connectors, which are distributed around the first opening. This allows for multi-point connection of the furnace bottom, improving the connection strength between the furnace bottom and the mounting part.

[0010] Optionally, the mounting portion further includes a second end wall disposed opposite to the first end wall. The second end wall is provided with a radially outwardly protruding stop member. When the mounting portion is in a vertical position, the stop member abuts against the bracket. This limits the vertical position of the mounting portion and restricts its rotation angle.

[0011] Optionally, the system further includes a first beam that is directly or indirectly hinged to the support frame. The first beam is connected to the furnace bottom; the upper surface of the first beam is located below the first end wall to abut against the furnace bottom. This provides vertical support to the furnace bottom, ensuring reliable connection between the furnace bottom and the mounting portion during tilting.

[0012] Optionally, the first beam is further provided with a second connector for detachable connection to the furnace bottom. This allows the second connector to connect to the furnace bottom, ensuring that the furnace bottom remains fixed to the first beam during rotation.

[0013] Optionally, it also includes a driving member, which is kinetically connected to the mounting portion to drive the mounting portion to rotate about a rotation axis. This enables the mounting portion to rotate.

[0014] Optionally, the axis of rotation extends radially along the circumference of the channel.

[0015] Optionally, the driving unit is disposed on one side of the first end wall, and in the opening direction of the channel, the driving unit is connected to the front side of the side opening of the mounting part. This allows the mounting part to be driven to rotate to a vertical position.

[0016] Optionally, the top of the bracket is provided with a U-shaped seat, and the mounting part is provided with a rotating shaft, which can be inserted into or removed from the U-shaped seat. This enables a detachable connection between the mounting seat and the bracket.

[0017] Other features and advantages of this specification will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of this specification and, together with their description, serve to explain the principles of this specification.

[0019] Figure 1 This is a schematic diagram of the structure of the movable furnace bottom bricklaying fixture in an embodiment of this utility model;

[0020] Figure 2 yes Figure 1 Partial structural schematic diagram, axonometric top view;

[0021] Figure 3 yes Figure 1 Partial structural schematic diagram, axonometric bottom view;

[0022] Figure 4 yes Figure 1 A schematic diagram of the structure of the support;

[0023] Figure 5 yes Figure 1 A structural diagram of the framework structure in the diagram;

[0024] Figure 6 yes Figure 1 A schematic diagram showing the installation part in a horizontal position.

[0025] Figure 7 yes Figure 1 Enlarged structural diagram of section A;

[0026] Figure 8 yes Figure 6 Enlarged structural diagram of section B;

[0027] Figure 9 This is a flowchart illustrating the use of the movable furnace bottom bricklaying fixture in this embodiment of the utility model.

[0028] Figure label:

[0029] 1-Bricklaying fixture; 11-Support; 110-U-shaped seat; 12-Mounting part; 121-First end wall; 121-1-First connector; 121-1a-First fastener; 121-2a-Padded block; 121-3a-Clamping plate; 121-2-Pin; 122-Second end wall; 122a-Stop; 131-First side wall; 132-Second side wall; 133-Third side wall; 134-Fourth side wall; 134-1 - Rotating shaft; 143- Side opening; 14- Channel; 144- Arc-shaped bent wall; 141- First opening; 142- Second opening; 15- Frame structure; 151- First beam; 152- Second beam; 151-1- Second connector; 151-1a- Locking shaft; 151-2a- Handle; 151-3a- Second fastener; 123- Snap ring; 16- Drive component; 17- Support column; 2- Furnace bottom; 21- Support leg; 3- Refractory brick. Detailed Implementation

[0030] This invention provides a movable furnace bottom bricklaying fixture, which significantly improves the bricklaying efficiency of the furnace bottom.

[0031] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] Relational terms such as “first” and “second” are used merely to distinguish one component from another that has the same name, without necessarily requiring or implying any such actual relationship or order between the components.

[0033] Please refer to Figures 1 to 9 As shown, Figure 1 This is a schematic diagram of the structure of the movable furnace bottom bricklaying fixture in an embodiment of this utility model; Figure 2 yes Figure 1 Partial structural schematic diagram, axonometric top view; Figure 3 yes Figure 1 Partial structural schematic diagram, axonometric bottom view; Figure 4 yes Figure 1 A schematic diagram of the structure of the support; Figure 5 yes Figure 1 A structural diagram of the framework structure in the diagram; Figure 6 yes Figure 1 A schematic diagram showing the installation part in a horizontal position. Figure 7 yes Figure 1 Enlarged structural diagram of section A; Figure 8 yes Figure 6 Enlarged structural diagram of section B; Figure 9 This is a flowchart illustrating the use of the movable furnace bottom bricklaying fixture in this embodiment of the utility model.

[0034] As shown in the figure, this utility model provides a movable furnace bottom 2 bricklaying fixture 1, which includes a support 11 and a mounting part 12 that can rotate relative to the support 11. The support 11 has a certain height to support the mounting part 12 as a whole. The specific structure of the support 11 can be selected by those skilled in the art. The top of the support 11 is hinged to the mounting part 12.

[0035] The mounting portion 12 has a first end wall 121 for connecting to the furnace bottom 2. The plane of the first end wall 121 coincides with or is parallel to the radial plane of the furnace bottom 2, which is perpendicular to the axis of the furnace bottom 2. The mounting portion 12 forms a channel 14 with a side opening 143. The channel 14 is used to accommodate refractory bricks 3 and is perpendicular to the plane of the first end wall 121.

[0036] The mounting section 12 includes an arc-shaped bent wall 144, which forms the wall of the channel 14. The channel 14 has a C-shaped curved structure in cross-section along the plane containing the first end wall 121. This curved structure can be a smoothly transitioned arc structure or a roughly C-shaped curved structure formed by connecting multiple broken lines in sequence. The channel 14 with the curved structure has an opening in the circumferential direction, which is the aforementioned side opening 143. The side opening 143 is different from the opening in the extension direction of the channel 14 (perpendicular to the first end wall 121), and is located at the opening of the C-shaped structure. A straight wall is also connected inside the arc-shaped bent wall 144. The straight wall serves as the supporting wall of the channel 14, that is, in the vertical direction, the straight wall is used to support the refractory brick 3. Furthermore, the curved bending wall 144 can also be provided with several stepped sections, the dimensions of which are consistent with the dimensions of the refractory bricks 3. This allows for edge positioning to ensure the compactness of the bricklaying. By providing the curved bending wall 144, a channel 14 with a side opening 143 can be formed, thereby limiting the refractory bricks 3 radially and providing vertical support.

[0037] The mounting part 12 can rotate between a horizontal position and a vertical position. In the horizontal position, the first end wall 121 is located on a horizontal plane, and the channel 14 extends vertically. In actual use, the furnace bottom 2 is placed horizontally at this time. In the vertical position, the opening direction of the channel 14 is upward, that is, the opening of the C-shaped structure is upward, and the furnace bottom 2 is set vertically.

[0038] In the technical solution of this application, the mounting part 12 also has a second end wall 122 disposed opposite to the first end wall 121. When the furnace bottom 2 is fixed to the first end wall 121, the first end wall 121 and the second end wall 122 are opposite each other along the axial direction of the furnace bottom 2. When the mounting part 12 is in a horizontal position, the second end wall 122 is located above the first end wall 121. At both ends of the extending direction of the channel 14 are a first opening 141 and a second opening 142, with the second opening 142 penetrating the second end wall 122. The second opening 142 is used to insert refractory bricks 3; the first opening 141 is located on the first end wall 121, and the first opening 141 can be covered by the furnace bottom 2 and conforms to the shape of the area to be bricked in the furnace bottom 2. The furnace bottom 2 has a designated area to be bricked, which can be a designated shape, such as a circle, polygon, or irregular shape. In this way, the channel 14 acts as a limit for the refractory brick 3, ensuring that the refractory brick 3 forms a structure that matches the area to be bricked in the furnace bottom 2 during the process of inserting into the channel 14.

[0039] By using the bricklaying fixture 1 of the movable furnace bottom 2 in this application, the furnace bottom 2 can be connected to the first end wall 121 of the mounting part 12, and the furnace bottom 2 can be driven from a horizontal position to a vertical position. By setting the channel 14, in the vertical position, the side opening 143 of the channel 14 opens upward, so that the wall of the channel 14 can support the refractory bricks 3 vertically, thereby significantly improving the bricklaying efficiency of the furnace bottom 2.

[0040] In a more specific example, the first end wall 121 is provided with a plurality of first connectors 121-1, which are distributed around the first opening 141. This allows for multi-point connection of the furnace bottom 2, improving the connection strength between the furnace bottom 2 and the mounting part 12.

[0041] As an alternative, the first connector 121-1 includes a clamping plate 121-3a and a pad 121-2a distributed axially along the furnace bottom 2, with the pad 121-2a located between the clamping plate 121-3a and the first end wall 121. It also includes a first fastener 121-1a, which includes a screw and a nut. The screw passes through the first end wall 121, the pad 121-2a, and the clamping plate 121-3a and is connected to the nut to adjust the distance between the clamping plate 121-3a and the first end wall 121 to match the axial dimension of the furnace bottom 2, thereby enabling the edge of the furnace bottom 2 to be clamped axially to achieve the connection between the first end wall 121 and the furnace bottom 2.

[0042] In addition, other connection methods can be selected to connect the furnace bottom 2 to the first end wall 121. As another example, the first end wall 121 is also provided with two pins 121-2 that are radially opposite to each other along the furnace bottom 2. The pins 121-2 extend axially downward from the first end wall 121. The pins 121-2 are used to insert into the slots on the edge of the furnace bottom 2, thereby serving the functions of positioning and clamping.

[0043] In the example shown, the support 11 is also hinged to a frame structure 15, which includes a first beam 151. The mounting part 12 is connected to the first beam 151, and the upper surface of the first beam 151 is located below the first end wall 121 to abut against the furnace bottom 2. The first beam 151 is also provided with a second connector 151-1 for detachable connection to the furnace bottom 2.

[0044] Specifically, the second connector 151-1 and several first connectors 121-1 are located on the same circumference, thereby fixing the furnace bottom 2.

[0045] A support leg 21 is provided at the bottom end of the furnace bottom 2, and a second connector 151-1 is used to connect to the support leg 21. A first beam 151 is radially opposite to the support leg 21. A locking hole is provided in the first beam 151, and a suitable locking shaft 151-1a is inserted into the locking hole. The locking shaft 151-1a can be inserted into the support leg 21. The first beam 151 is also provided with a second fastener 151-3a. After the locking shaft 151-1a is inserted into the support leg 21, a handle 151-2a is provided at the end of the locking shaft 151-1a. The second fastener 151-3a locks the handle 151-2a to the first beam 151. Thus, when the mounting part 12 is in the vertical position, the first beam 151 can effectively lock and support the furnace bottom 2.

[0046] In the aforementioned embodiments, a drive member 16 is further included to drive the mounting portion 12 to rotate. The drive member 16 is drively connected to the mounting portion 12 to drive the mounting portion 12 to rotate about a rotation axis. The rotation axis extends radially along the circumference of the channel 14. The drive member is disposed on the side where the first end wall 121 is located, and in the opening direction of the channel 14, the drive member is connected to the front side of the side opening 143 of the mounting portion 12. This allows the mounting portion 12 to be driven to rotate about the rotation axis to a vertical position.

[0047] In an optional embodiment, the second end wall 122 is provided with a radially outwardly protruding stop 122a, which abuts against the bracket 11 when the mounting portion 12 is in the vertical position. This limits the extreme position of the mounting portion 12, preventing it from rotating out of position and restricting its rotation angle.

[0048] In some technical solutions of this application, the bracket 11 and the mounting part 12 are detachably connected. Specifically, the top of the bracket 11 is provided with a U-shaped seat 110, and the mounting part 12 is provided with a rotating shaft 134-1, which can be inserted into or removed from the U-shaped seat 110.

[0049] The bracket 11 is symmetrically arranged along the extension direction of the first beam 151. The two ends of the first beam 151 are respectively connected to the second beam 152. The second beam 152 is directly or indirectly hinged to the bracket 11, thereby realizing rotation. The output end of the hydraulic cylinder can be connected to the second beam 152 to drive the mounting part 12.

[0050] The following example illustrates how to use this tooling in actual operation.

[0051] After connecting the movable furnace bottom 2 to the first connecting piece 121-1, the movable furnace bottom 2 is hoisted onto the bracket 11 so that the rotating shaft 134-1 can be inserted into the U-shaped seat 110. The bracket 11 has been hinged to the frame structure 15 in advance. The furnace bottom 2 presses vertically against the upper surface of the first beam 151, and then the second connecting piece 151-1 is connected to the movable furnace bottom 2.

[0052] The hydraulic cylinder is activated to drive the second beam 152 to rotate the entire mounting section 12 from a horizontal position to a vertical position via the frame structure 15. Then, the bricklaying operation is performed. After the bricklaying operation is completed, the hydraulic cylinder drives the mounting section 12 back to a horizontal position. Then, the furnace bottom 2 is lifted off the movable furnace bottom 2 bricklaying fixture 1.

[0053] In one specific embodiment of this application, a frame structure 15 connected to the bracket 11 is also included. The outer contour of the mounting part 12 is rectangular, and the mounting part 12 has a first end wall 121, a second end wall 122, and a plurality of side walls connected to the two end walls. The side walls include a first side wall 131 and a second side wall 132 disposed opposite to each other, and a third side wall 133 and a fourth side wall 134 disposed opposite to each other. The third side wall 133 and the fourth side wall 134 are respectively connected to a rotating shaft 134-1.

[0054] The side opening 143 is located on the first side wall 131. When the mounting part 12 is in a vertical position, the first side wall 131 is located above the second side wall 132. The mounting part 12 is also connected to a retaining ring 123, which is made of rigid material. The mounting part 12 also includes an arc-shaped bent wall 144, the two ends of which are connected to the first side wall 131. The straight wall is parallel to the surface where the first side wall 131 is located.

[0055] In this technical solution, the second beam 152 has an L-shaped structure. The horizontal section is arranged opposite to the third side wall 133 and the fourth side wall 134 and is directly or indirectly hinged to the bracket 11. The vertical section extends vertically downward, that is, it extends towards the direction close to the first end wall 121 and is fixed to the first beam 151.

[0056] The first beam 151 is parallel to the plane containing the first side wall 131 and lower than the plane containing the first end wall 121. The vertical gap between the first end wall 121 and the first beam 151 is used to place the furnace bottom 2.

[0057] In a more specific operational process, the support 11 is pre-installed with the frame structure 15 via the bearing seat. After the two pillars 17 are installed on the support 11 at the furnace bottom 2, the first beam 151 presses against the upper surface of the two pillars 17.

[0058] After clamping the first connector 121-1 to the edge of the furnace bottom 2, the pin 121-2 on the lower surface of the first end wall 121 of the mounting part 12 is inserted into the slot of the furnace bottom 2. The slot has a semi-circular structure. The first connectors 121-1 are evenly distributed around the circumference of the first opening 141, and the number can be six or more or fewer, which can be selected by those skilled in the art.

[0059] Then, the furnace bottom 2 is lifted, and the rotating shaft 134-1 of the mounting part 12 is inserted into the U-shaped seat 110 at the top of the bracket 11. The U-shaped seat 110 and the rotating shaft 134-1 are concentrically arranged. The lower surface of the furnace bottom 2 presses against the first beam 151, and then the first beam 151 is locked to the furnace bottom 2.

[0060] Third, the hydraulic cylinder extends its cylinder rod and rotates clockwise around the axis of the U-shaped seat 110 via the first beam 151 flipping mounting part 12. It stops when it rotates to 90°. At this time, the stop part 122a and the bracket 11 form a stop.

[0061] The fourth step is to begin laying refractory bricks 3 after tilting the bricks into place, and connect the movable retaining ring 123 to the installation part 12 until the bricklaying is completed.

[0062] Fifth step, the hydraulic cylinder retracts its cylinder rod, causing the mounting part 12 to rotate in the opposite direction until the first beam 151 presses against the support column 17 again.

[0063] The sixth step is to open the second connector 151-1, and after the furnace bottom 2 is lifted away from the frame structure and the support 11, operate the first connector 121-1 to separate the furnace bottom 2 from the installation part 12, and complete the bricklaying.

[0064] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A movable furnace bottom bricklaying fixture, characterized in that, The device includes a support (11) and a mounting portion (12) rotatable relative to the support (11). The mounting portion (12) has a first end wall (121) for connecting to the furnace bottom (2). The mounting portion (12) forms a channel (14) with a side opening (143) for accommodating refractory bricks (3). The channel (14) is perpendicular to the plane containing the first end wall (121). The mounting part (12) is rotatable between a horizontal position and a vertical position, wherein in the vertical position, the opening direction of the side opening (143) is upward.

2. The movable furnace bottom bricklaying fixture according to claim 1, characterized in that, The mounting portion (12) includes an arc-shaped bent wall (144), which forms the wall portion of the channel (14).

3. The movable furnace bottom bricklaying fixture according to claim 2, characterized in that, The channel (14) has a first opening (141) and a second opening (142) at both ends in the extension direction, the second opening (142) being used to insert refractory bricks (3); the first opening (141) is located on the first end wall (121) and is covered by the furnace bottom (2).

4. The movable furnace bottom bricklaying fixture according to claim 3, characterized in that, The first end wall (121) is provided with a plurality of first connectors (121-1), and the plurality of first connectors (121-1) are distributed at intervals around the first opening (141).

5. The movable furnace bottom bricklaying fixture according to claim 1, characterized in that, The mounting portion (12) also has a second end wall (122) disposed opposite to the first end wall (121). The second end wall (122) is provided with a stop member (122a) that protrudes radially outward. When the mounting portion (12) is in a vertical position, the stop member (122a) abuts against the bracket (11).

6. The movable furnace bottom bricklaying fixture according to claim 1, characterized in that, It also includes a first beam (151) that is directly or indirectly hinged to the support (11), the first beam (151) being able to connect to the furnace bottom (2); the upper surface of the first beam (151) is located on the lower side of the first end wall (121) to abut against the furnace bottom (2).

7. The movable furnace bottom bricklaying fixture according to claim 6, characterized in that, The first beam (151) is also provided with a second connector (151-1), which is used to detachably connect to the furnace bottom (2).

8. The movable furnace bottom bricklaying fixture according to claim 6, characterized in that, It also includes a drive member (16), which is connected to the mounting part (12) in a transmission manner to drive the mounting part (12) to rotate around the rotation axis.

9. The movable furnace bottom bricklaying fixture according to claim 8, characterized in that, The axis of rotation extends radially along the circumference of the channel (14).

10. The movable furnace bottom bricklaying fixture according to claim 8, characterized in that, The top of the bracket (11) is provided with a U-shaped seat (110), and the mounting part (12) is provided with a rotating shaft (134-1), which can be inserted into or removed from the U-shaped seat (110).

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