Adjustable air supply device elbow support

Abstract

The utility model relates to an adjustable air supply device bend support, which comprises a nozzle, a spray pipe seat and a bend body, an auxiliary support component is arranged at the bottom of the spray pipe seat, a mounting plate is arranged at the bottom of the auxiliary support component, a connecting plate is arranged on the outer side of the bend body, and the connecting plate is connected with the spray pipe seat. Two lifting supporting assemblies are arranged between the connecting plate and the mounting plate, two mounting grooves are formed in the top of the mounting plate, parts of the two lifting supporting assemblies are mounted in the two mounting grooves correspondingly, and the auxiliary supporting assembly comprises a mounting base and a high-temperature alloy corrugated lining plate. Under the action of the alloy lifting frames on the left side and the right side of the bent pipe body, the connecting plate on the outer side of the bent pipe body can be supported, and under the action of the high-temperature alloy corrugated lining plate, the impact influence of high-pressure airflow and high-speed airflow entering the bent pipe body is reduced, and the sealing performance of the connecting portion of the bent pipe body and a spray pipe base is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of blast furnace air supply technology, specifically to an adjustable air supply device bend support. Background Technology

[0002] In the field of iron and steel smelting, the blast furnace air supply system is a key component connecting the hot blast stove and the blast furnace. It mainly includes straight air supply pipes, bends, and tuyere assemblies. Among them, the bend is the core component in the pipeline system that realizes the airflow turning. Its installation accuracy and stability directly affect the air supply efficiency and system safety. During the blast furnace air supply process, the bend needs to withstand the impact of high temperature, high pressure and high speed airflow, as well as the displacement and mechanical vibration caused by the thermal expansion and contraction of the pipeline. Therefore, it needs to be supported.

[0003] In existing blast furnace blast pipe support schemes, rigid connecting rods are generally directly welded to the furnace wall and the outside of the bend. However, during the operation of the blast furnace blast system, the outside of the bend is exposed to the high-temperature environment for a long time, and is subjected to the high-frequency impact of high-pressure and high-speed airflow. The above-mentioned thermal loads and dynamic loads are transmitted to the support structure without buffering through the directly connected connecting rods, causing the connecting rods to deform and fail due to high-temperature creep and fatigue stress concentration. This not only significantly shortens the service life of the support components, but also causes deviations in the positioning accuracy of the bend due to the decrease in the stiffness of the connecting rods, exacerbating the risk of pipe vibration and sealing failure at the interface, making it difficult to meet the support requirements for long-term stable operation of the blast furnace. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable air supply device bend support to overcome the shortcomings of the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] An adjustable air supply device bend support includes a nozzle, a nozzle seat, and a bend body. An auxiliary support assembly is provided at the bottom of the nozzle seat, and a mounting plate is provided at the bottom of the auxiliary support assembly. A connecting plate is provided on the outer side of the bend body. Two lifting support assemblies are provided between the connecting plate and the mounting plate. Two mounting slots are provided on the top of the mounting plate, and a portion of each of the two lifting support assemblies is installed inside the two mounting slots.

[0007] Furthermore, the auxiliary support assembly includes a mounting base and a high-temperature alloy corrugated liner. The mounting base is disposed on the top of the mounting plate, and a placement groove is provided on the top of the mounting base. The high-temperature alloy corrugated liner is fixed inside the placement groove.

[0008] Furthermore, the top of the mounting plate is provided with a mating groove, and the bottom of the mounting base is fixedly connected with a mating rod, the outer wall of the mating rod being threadedly connected to the inner wall of the mating groove.

[0009] Furthermore, all of the aforementioned lifting support components include a motor, a threaded rod, a movable block, and an alloy lifting frame. The motor is fixedly installed on the front side of the mounting plate. The threaded rod is rotatably installed inside the mounting groove, and its front side is fixedly connected to the front side of the motor's output shaft. There are two movable blocks, which are symmetrically distributed on the outer side of the threaded rod. The bottom of the alloy lifting frame is connected to the top of the two movable blocks, and its top is connected to the bottom of the connecting plate.

[0010] The beneficial effects of this utility model are: under the action of the alloy lifting frame on the left and right sides of the bent pipe body, it can support the connecting plate on the outside of the bent pipe body, and under the action of the high-temperature alloy corrugated liner, it reduces the impact of high-pressure airflow and high-speed airflow entering the bent pipe body, and ensures the sealing of the connection part with the nozzle seat.

[0011] Based on the above technical solution, the present invention can be further improved as follows.

[0012] Furthermore, the bottom of the mounting plate is provided with a docking seat, the interior of which has two dovetail grooves. Two dovetail blocks that are slidably connected to the two dovetail grooves are fixedly installed on the bottom of the mounting plate. A connecting groove is provided on the top of the docking seat. A buffer block whose outer wall fits against the inner wall of the connecting groove is fixedly installed on the bottom of the mounting plate.

[0013] The advantages of adopting the above-mentioned further solution are: it facilitates the installation of the mounting plate, making it easy to disassemble during maintenance, and the buffer block reduces the impact of vibration transmission from above on the connection parts.

[0014] Furthermore, four magnetorheological dampers are fixedly installed on the bottom of the mounting plate.

[0015] The beneficial effect of adopting the above-mentioned further solution is that it further enhances the stability of the mounting plate during use, thereby ensuring stable use even under the vibration caused by the high-frequency impact of high-pressure airflow and high-speed airflow. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the adjustable air supply device bend support from one perspective of the present invention.

[0017] Figure 2 This is a three-dimensional structural diagram of the adjustable air supply device with a bent pipe support from another perspective.

[0018] Figure 3 A three-dimensional structural diagram of the components below the mounting plate and the auxiliary support assembly of this utility model from one perspective;

[0019] Figure 4This is a three-dimensional structural diagram of the components below the mounting plate and the auxiliary support assembly of this utility model from another perspective.

[0020] Figure 5 This is a three-dimensional structural diagram of the lifting support component of this utility model.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 1. Nozzle; 2. Nozzle mount; 3. Bend body; 4. Auxiliary support assembly; 401. Mounting base; 402. High-temperature alloy corrugated liner; 5. Mounting plate; 6. Connecting plate; 7. Lifting support assembly; 701. Motor; 702. Threaded rod; 703. Moving block; 704. Alloy lifting frame; 8. Mounting groove; 9. Docking groove; 10. Docking rod; 11. Docking seat; 12. Dovetail groove; 13. Dovetail block; 14. Connecting groove; 15. Buffer block; 16. Magnetorheological damper. Detailed Implementation

[0023] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0024] Example 1, such as Figures 1-5 As shown, an adjustable air supply device bend support includes a nozzle 1, a nozzle seat 2, and a bend body 3. An auxiliary support assembly 4 is provided at the bottom of the nozzle seat 2, and a mounting plate 5 is provided at the bottom of the auxiliary support assembly 4. A connecting plate 6 is provided on the outside of the bend body 3. Two lifting support assemblies 7 are provided between the connecting plate 6 and the mounting plate 5. Two mounting slots 8 are opened on the top of the mounting plate 5, and a portion of each of the two lifting support assemblies 7 is installed inside the two mounting slots 8 respectively.

[0025] Specifically, the auxiliary support component 4 includes a mounting base 401 and a high-temperature alloy corrugated liner 402. The mounting base 401 is located on the top of the mounting plate 5, and a placement groove is provided on the top of the mounting base 401. The high-temperature alloy corrugated liner 402 is fixed inside the placement groove.

[0026] Specifically, the top of the mounting plate 5 is provided with a mating groove 9, and the bottom of the mounting base 401 is fixedly connected with a mating rod 10, the outer wall of the mating rod 10 being threadedly connected to the inner wall of the mating groove 9.

[0027] Specifically, all lifting support components 7 include a motor 701, a threaded rod 702, a moving block 703, and an alloy lifting frame 704. The motor 701 is fixedly installed on the front side of the mounting plate 5. The threaded rod 702 is rotatably installed inside the mounting groove 8, and its front side is fixedly connected to the front side of the output shaft of the motor 701. There are two moving blocks 703, which are symmetrically distributed on the outside of the threaded rod 702. The bottom of the alloy lifting frame 704 is connected to the top of the two moving blocks 703, and its top is connected to the bottom of the connecting plate 6.

[0028] Mounting base 401 is fixed to mounting plate 5 by threaded connection between mating groove 9 and mating rod 10, forming a rigid support base. High temperature alloy corrugated liner 402 is made of GH4169 material and is pre-placed in the placement groove of mounting base 401. Its corrugated structure can absorb the axial displacement of nozzle seat 2 caused by thermal expansion and avoid stress concentration (a technical means well known to those in the art, so it will not be described in detail). Start motor 701 to drive threaded rod 702 to rotate. Threaded rod 702 drives symmetrically distributed moving blocks 703 to move horizontally along mounting groove 8. Moving blocks 703 push alloy lifting frame 704 through hinge point to generate vertical displacement and connect with the bottom of connecting plate 6 to complete the support of connecting plate 6, thereby ensuring the position of the bent pipe body 3.

[0029] Example 2 is a further improvement based on Example 1, and is as follows: The bottom of the mounting plate 5 is provided with a docking seat 11, and the docking seat 11 has two dovetail grooves 12 inside. The bottom of the mounting plate 5 is fixedly installed with two dovetail blocks 13 that are slidably connected to the two dovetail grooves 12 respectively. The top of the docking seat 11 is provided with a connecting groove 14. The bottom of the mounting plate 5 is fixedly installed with a buffer block 15 whose outer wall fits against the inner wall of the connecting groove 14.

[0030] With this configuration, the docking seat 11 is fixedly installed on the ground. With the cooperation of the dovetail groove 12 and the dovetail block 13, a two-way wedge fit is formed, which realizes the gapless precision guidance between the mounting plate 5 and the docking seat 11. The buffer block 15 is made of high-damping silicone rubber composite material and is set in the connecting groove 14. It absorbs vertical vibration energy through compression deformation, ensuring the long-term use of the mounting plate 5.

[0031] Example 3 is a further improvement on Example 1, and its specific details are as follows: Four magnetorheological dampers 16 are fixedly installed on the bottom of the mounting plate 5.

[0032] With this configuration, the four magnetorheological dampers 16 are arranged in a rectangular shape at the bottom of the mounting plate 5. When the mounting plate 5 is subjected to vibrations caused by high-frequency impacts from high-pressure and high-speed airflows, the four magnetorheological dampers 16 further distribute the vibration force, ensuring the long-term use of the auxiliary support assembly 4 and the lifting support assembly 7 on the mounting plate 5.

[0033] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An adjustable air supply device bend support, comprising a nozzle (1), a nozzle seat (2), and a bend body (3), characterized in that: The nozzle seat (2) is provided with an auxiliary support assembly (4) at its bottom. The auxiliary support assembly (4) is provided with a mounting plate (5) at its bottom. The outer side of the bent pipe body (3) is provided with a connecting plate (6). Two lifting support assemblies (7) are provided between the connecting plate (6) and the mounting plate (5). The top of the mounting plate (5) has two mounting slots (8). A portion of each of the two lifting support assemblies (7) is installed inside the two mounting slots (8).

2. The adjustable air supply device bend support according to claim 1, characterized in that: The auxiliary support component (4) includes a mounting base (401) and a high-temperature alloy corrugated liner (402). The mounting base (401) is located on the top of the mounting plate (5). A placement groove is provided on the top of the mounting base (401), and the high-temperature alloy corrugated liner (402) is fixed inside the placement groove.

3. The adjustable air supply device bend support according to claim 2, characterized in that: The top of the mounting plate (5) is provided with a docking groove (9), and the bottom of the mounting base (401) is fixedly connected with a docking rod (10). The outer wall of the docking rod (10) is threadedly connected to the inner wall of the docking groove (9).

4. The adjustable air supply device bend support according to claim 1, characterized in that: All of the aforementioned lifting support components (7) include a motor (701), a threaded rod (702), a moving block (703), and an alloy lifting frame (704). The motor (701) is fixedly installed on the front side of the mounting plate (5). The threaded rod (702) is rotatably installed inside the mounting groove (8), and its front side is fixedly connected to the front side of the output shaft of the motor (701). There are two moving blocks (703), which are symmetrically distributed on the outside of the threaded rod (702). The bottom of the alloy lifting frame (704) is connected to the top of the two moving blocks (703), and its top is connected to the bottom of the connecting plate (6).

5. The adjustable air supply device bend support according to claim 1, characterized in that: The bottom of the mounting plate (5) is provided with a docking seat (11), and the interior of the docking seat (11) has two dovetail grooves (12). The bottom of the mounting plate (5) is fixedly installed with two dovetail blocks (13) that are slidably connected to the two dovetail grooves (12). The top of the docking seat (11) is provided with a connecting groove (14). The bottom of the mounting plate (5) is fixedly installed with a buffer block (15) whose outer wall is in contact with the inner wall of the connecting groove (14).

6. The adjustable air supply device bend support according to claim 5, characterized in that: Four magnetorheological dampers (16) are fixedly installed on the bottom of the mounting plate (5).

Images