Blast furnace sealing structure
By designing the elastic push mechanism and limiting groove limit block in the blast furnace seal structure, combining the sealing gasket and sealing ring, the leakage problem caused by the gap after long-term use of the blast furnace seal structure is solved, and the connection stability and sealing properties are improved.
Patent Information
- Application Number
- CN202323657989.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-29
- Publication Date
- 2024-12-06
- Estimated Expiration
- 2033-12-29
AI Technical Summary
The blast furnace sealing structure is prone to gaps after a long period of use, resulting in leakage and further enlargement of gaps.
A blast furnace sealing structure including connecting pipes and elastic pushing mechanism is designed. The elastic pushing mechanism consists of a connecting plate, a fixed sleeve rod, a telescopic inner rod, a strong spring and a mounting screw. The telescopic inner rod is matched through a limiting groove and a limiting block. The movement of the sealing is limited, combining the gasket and the sealing ring to improve sealing and prevent shaking and offset.
It effectively solves the leakage problem caused by gaps at the connection, improves connection stability and sealing, avoids gap expansion, and ensures a sealing effect for long-term use.
Smart Images
Figure CN222119286U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of blast furnace equipment, and in particular relates to a blast furnace sealing structure. Background Art
[0002] The blast furnace uses steel plates as the furnace shell and refractory brick lining inside the shell. Due to the advantages of blast furnace ironmaking, such as good technical and economic indicators, simple process, large production volume, high labor productivity and low energy consumption, the iron produced by this method accounts for the vast majority of the world's total iron production. The connection between the automatic diagnosis and alarm system of the blast furnace hearth erosion condition and the blast furnace needs to be sealed, and the sealing structure of the blast furnace is prone to loosening after a long period of use.
[0003] In actual use of existing equipment, gaps may appear at the joints after long-term use, causing leakage, and leakage will increase the gap. Utility Model Content
[0004] The technical problem to be solved by the utility model is that after the existing equipment is used for a long time, gaps will appear at the connection, causing leakage.
[0005] The technical solution adopted by the utility model to solve its technical problems is: a blast furnace sealing structure, including a connecting pipe, the outer side of the connecting pipe is provided with a spring push mechanism, the spring push mechanism includes a connecting plate, a fixed sleeve rod, a telescopic inner rod, a strong spring and a mounting screw, the inner side of the connecting plate is fixedly connected to the outer side of the connecting pipe, the bottom end of the fixed sleeve rod is fixedly connected to the top end of the connecting plate, the surface of the telescopic inner rod is movably connected to the inner cavity of the fixed sleeve rod, the surface of the strong spring is movably connected to the inner cavities of the fixed sleeve rod and the telescopic inner rod, and the surface of the mounting screw rod passes through from the top end of the telescopic inner rod to the bottom end of the connecting plate and is movably connected to its inner cavity.
[0006] As a preferred embodiment of the present invention, the number of the connecting plates is four, the spacings between the connecting plates are equal, and the height of the telescopic inner rod is greater than the length of the inner cavity of the fixed sleeve rod.
[0007] As a preferred embodiment of the present invention, the top end of the strong spring is fixedly connected to the top end of the inner cavity of the telescopic inner rod, and the bottom end of the strong spring is fixedly connected to the bottom end of the inner cavity of the fixed sleeve rod.
[0008] As a preferred embodiment of the utility model, a top cover is fixedly installed on the top end of the connecting pipe, a detection device body is fixedly connected to the inner cavity of the top cover, and a connecting bottom ring is fixedly connected to the bottom end of the connecting pipe.
[0009] As a preferred embodiment of the utility model, a sealing ring is fixedly connected to the bottom end of the connecting bottom ring, and a plurality of screw holes are opened on the outer side of the top of the top cover, and the spacing between the screw holes is equal.
[0010] As a preferred embodiment of the utility model, a connecting sleeve groove is provided at the bottom end of the connecting pipe, a sealing gasket is fixedly sleeved at the top end of the connecting sleeve groove, and the width of the connecting sleeve groove is equal to the wall thickness of the blast furnace output pipe.
[0011] As a preferred embodiment of the utility model, a limiting groove is provided in the inner cavity of the fixed sleeve rod, a limiting block is fixedly connected to the surface of the telescopic inner rod, and a surface of the limiting block is movably connected to the inner cavity of the limiting groove.
[0012] The beneficial effects of the utility model are:
[0013] 1. This blast furnace sealing structure solves the problem that gaps will appear at the joints of existing equipment after long-term use during actual use, causing leakage, and leakage will increase the expansion of the gaps through the coordinated use of various components.
[0014] 2. This blast furnace sealing structure, through the setting of the connecting sleeve groove, can make the connecting pipe sleeved on the inner and outer walls of the blast furnace output pipe, so that the connecting pipe will not shake during use, thereby improving the stability of the connection of the device; through the setting of the sealing gasket, the airtightness of the connection between the connecting pipe and the blast furnace output pipe can be increased; through the setting of the limit groove and the limit block, the movement of the telescopic inner rod can be limited to avoid the phenomenon of deviation and rotation during movement. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall upper side structure provided by an embodiment of the utility model;
[0016] Figure 2 It is a schematic diagram of the overall bottom structure provided by an embodiment of the utility model when viewed from above;
[0017] Figure 3 It is a schematic diagram of a side sectional structure of a fixed sleeve rod provided in an embodiment of the utility model;
[0018] Figure 4 This is a schematic diagram of the bottom end of the top cover provided by an embodiment of the utility model when viewed from above;
[0019] Figure 5 The utility model embodiment provides Figure 3 Enlarged structural diagram at A in the middle.
[0020] Explanation of the markings in the figure: 1. Connecting pipe; 2. Push mechanism; 201. Connecting plate; 202. Fixed sleeve rod; 203. Telescopic inner rod; 204. Strong spring; 205. Mounting screw; 3. Top cover; 4. Detection device body; 5. Connecting bottom ring; 6. Sealing ring; 7. Screw hole; 8. Connecting sleeve groove; 9. Sealing gasket; 10. Limiting groove; 11. Limiting block. DETAILED DESCRIPTION
[0021] The present invention will now be further described in detail in conjunction with the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.
[0022] like Figures 1 to 5 As shown, a blast furnace sealing structure provided by the utility model includes a connecting pipe 1, and a push mechanism 2 is arranged on the outer side of the connecting pipe 1, and the push mechanism 2 includes a connecting plate 201, a fixed sleeve rod 202, a telescopic inner rod 203, a strong spring 204 and a mounting screw 205. The inner side of the connecting plate 201 is fixedly connected to the outer side of the connecting pipe 1, the bottom end of the fixed sleeve rod 202 is fixedly connected to the top end of the connecting plate 201, the surface of the telescopic inner rod 203 is movably connected to the inner cavity of the fixed sleeve rod 202, the surface of the strong spring 204 is movably connected to the inner cavities of the fixed sleeve rod 202 and the telescopic inner rod 203, and the surface of the mounting screw 205 passes through from the top end of the telescopic inner rod 203 to the bottom end of the connecting plate 201 and is movably connected to its inner cavity.
[0023] refer to Figures 1 to 5 , there are four connecting plates 201, the spacing between the connecting plates 201 is equal, the height of the telescopic inner rod 203 is greater than the length of the inner cavity of the fixed sleeve rod 202, the top end of the strong spring 204 is fixedly connected to the top end of the inner cavity of the telescopic inner rod 203, the bottom end of the strong spring 204 is fixedly connected to the bottom end of the inner cavity of the fixed sleeve rod 202, the top end of the connecting pipe 1 is fixedly installed with a top cover 3, the inner cavity of the top cover 3 is fixedly connected with a detection device body 4, and the bottom end of the connecting pipe 1 is fixedly connected with a connecting bottom ring 5.
[0024] The above solution is adopted: the top cover 3 is provided to facilitate installation and disassembly, thereby facilitating replacement and maintenance of the detection device body 4, thereby avoiding damage to the detection device body 4 causing inaccurate monitoring data.
[0025] refer to Figures 1 to 5 The bottom end of the connecting bottom ring 5 is fixedly connected with a sealing ring 6, a plurality of screw holes 7 are opened on the outer side of the top of the top cover 3, and the spacing between the screw holes 7 is equal. A connecting sleeve groove 8 is opened at the bottom end of the connecting pipe 1, and a sealing gasket 9 is fixedly sleeved on the top of the connecting sleeve groove 8. The width of the connecting sleeve groove 8 is equal to the wall thickness of the blast furnace output pipe. A limiting groove 10 is opened in the inner cavity of the fixed sleeve rod 202, and a limiting block 11 is fixedly connected to the surface of the telescopic inner rod 203, and the surface of the limiting block 11 is movably connected to the inner cavity of the limiting groove 10.
[0026] The above scheme is adopted: through the setting of the connecting sleeve groove 8, the connecting pipe 1 can be sleeved on the inner and outer walls of the blast furnace output pipe, so that the connecting pipe 1 will not shake during use, thereby improving the stability of the connection of the device; through the setting of the sealing gasket 9, the airtightness of the connection between the connecting pipe 1 and the blast furnace output pipe can be increased; through the setting of the limit groove 10 and the limit block 11, the movement of the telescopic inner rod 203 can be limited to avoid the phenomenon of deviation and rotation during the movement.
[0027] Working principle:
[0028] When in use, the connecting sleeve groove 8 is sleeved on the output end of the blast furnace output pipe, the bottom end of the mounting screw 205 is passed from the top of the telescopic inner rod 203 to the bottom end of the connecting plate 201, and is threadedly connected to the connecting hole on the surface of the blast furnace, and the mounting screw 205 is tightened to press the telescopic inner rod 203 to move toward the inner cavity of the fixed sleeve rod 202, and the movement of the telescopic inner rod 203 generates pressure on the strong spring 204, so that the strong spring 204 contracts and the thrust of the strong spring 204 rebounds is increased. At the same time, the fixed sleeve rod 202 is pushed to move by the telescopic inner rod 203, and the connecting plate 201 is moved by the movement of the fixed sleeve rod 202, and the connecting pipe 1 is moved by the movement of the connecting plate 201, and the connecting pipe 1 is pressed against the blast furnace output pipe by the movement, thereby ensuring the sealing. The gasket 9 is squeezed so that the sealing gasket 9 fills the gap between the connecting pipe 1 and the blast furnace output pipe to prevent leakage. The top cover 3 is then installed to the top of the connecting pipe 1 by using screws to penetrate the screw holes 7. The bottom ring 5 is connected to the inner side of the top of the connecting pipe 1. The sealing ring 6 increases the tightness of the connection. The temperature in the blast furnace output pipe is monitored by the detection device body 4. After long-term use, when the sealing gasket 9 is worn out and a gap appears, the fixed sleeve rod 202 is pushed to move by the rebound of the strong spring 204, and the movement of the fixed sleeve rod 202 drives the connecting plate 201 to move. The movement of the connecting plate 201 drives the connecting pipe 1 to move toward the blast furnace output pipe, thereby squeezing the sealing gasket 9 to fill the gap again.
[0029] In summary: this blast furnace sealing structure, through the coordinated use of various components, solves the problem that in the actual use of existing equipment, gaps will appear at the joints after long-term use, causing leakage, and leakage will increase the expansion of the gap.
[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device;
[0031] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
[0032] The above description only describes the specific implementation methods of the utility model. Various examples do not limit the essential content of the utility model. Ordinary technicians in the relevant technical field can modify or deform the specific implementation methods described above after reading the description without departing from the essence and scope of the utility model.
Claims
1. A blast furnace sealing structure, comprising a connecting pipe (1), characterized in that: The outer side of the connecting pipe (1) is provided with a spring-pushing mechanism (2), the spring-pushing mechanism (2) comprising a connecting plate (201), a fixed sleeve rod (202), a telescopic inner rod (203), a strong spring (204) and a mounting screw (205); the inner side of the connecting plate (201) is fixedly connected to the outer side of the connecting pipe (1); the bottom end of the fixed sleeve rod (202) is fixedly connected to the top end of the connecting plate (201); the surface of the telescopic inner rod (203) is movably connected to the inner cavity of the fixed sleeve rod (202); the surface of the strong spring (204) is movably connected to the inner cavities of the fixed sleeve rod (202) and the telescopic inner rod (203); and the surface of the mounting screw (205) passes through from the top end of the telescopic inner rod (203) to the bottom end of the connecting plate (201) and is movably connected to the inner cavity thereof.
2. A blast furnace sealing structure according to claim 1, characterized in that: The number of the connecting plates (201) is four, the spacing between the connecting plates (201) is equal, and the height of the telescopic inner rod (203) is greater than the length of the inner cavity of the fixed sleeve rod (202).
3. A blast furnace sealing structure according to claim 1, characterized in that: The top end of the strong spring (204) is fixedly connected to the top end of the inner cavity of the telescopic inner rod (203), and the bottom end of the strong spring (204) is fixedly connected to the bottom end of the inner cavity of the fixed sleeve rod (202).
4. A blast furnace sealing structure according to claim 1, characterized in that: A top cover (3) is fixedly mounted on the top of the connecting pipe (1), a detection device body (4) is fixedly connected to the inner cavity of the top cover (3), and a connecting bottom ring (5) is fixedly connected to the bottom end of the connecting pipe (1).
5. A blast furnace sealing structure according to claim 4, characterized in that: A sealing ring (6) is fixedly connected to the bottom end of the connecting bottom ring (5), and a plurality of screw holes (7) are provided on the outer side of the top of the top cover (3), and the spacing between the screw holes (7) is equal.
6. A blast furnace sealing structure according to claim 1, characterized in that: A connecting sleeve groove (8) is provided at the bottom end of the connecting pipe (1), a sealing gasket (9) is fixedly sleeved at the top end of the connecting sleeve groove (8), and the width of the connecting sleeve groove (8) is equal to the wall thickness of the blast furnace output pipe.
7. A blast furnace sealing structure according to claim 1, characterized in that: The inner cavity of the fixed sleeve rod (202) is provided with a limiting groove (10), the surface of the telescopic inner rod (203) is fixedly connected to a limiting block (11), and the surface of the limiting block (11) is movably connected to the inner cavity of the limiting groove (10).