Device for conveniently disassembling and assembling blast furnace blowpipe
By designing a blast furnace blow pipe device that is easy to disassemble and assemble, the combination of forklift and hollow wedge-shaped fork plates is solved, and the blast furnace air outlet and blow pipe are easily damaged, frequently replaced and disassembled and assembled in high temperature environments, safe and rapid replacement are achieved, and production efficiency is improved.
Patent Information
- Application Number
- CN202421228796.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-05-31
AI Technical Summary
The blast furnace air outlets and blow pipes are easily damaged in high temperature environments, resulting in difficulty in frequent replacement and disassembly, affecting production efficiency and output.
A blast furnace blow pipe device is designed for easy disassembly and assembly, including forklift, forklift fork and hollow wedge fork plate. Through the cooperation of the forklift and hollow wedge fork plate, the blast furnace blow pipe is quickly disassembled and assembled.
It realizes the replacement of blast furnace air outlet blower safely and quickly under high temperature environments, shortens replacement time, reduces energy consumption, and improves production operation rate.
Smart Images
Figure CN222700327U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a device which is convenient for disassembling and assembling a blast furnace blowpipe and belongs to the technical field of replacing blast furnace blowpipes in the metallurgical industry. Background Art
[0002] With the continuous improvement of blast furnace smelting intensity and the widespread application of blast furnace coal injection technology, the front end corrosion and inner wall wear of the blast furnace tuyere have intensified, shortening the service life of the tuyere, seriously affecting the blast furnace ironmaking production efficiency and output, and increasing the labor intensity of the work.
[0003] The cross-flow and eccentric copper tuyere have a longer service life than other tuyere. However, due to the harsh working conditions of the tuyere, when the blast furnace is smelting iron ore with poor ore quality, the slag has a low melting point, low viscosity and good rolling properties. It is difficult to form a thick solid slag skin on the surface of the tuyere, causing the high-temperature iron flow to directly scour the tuyere wall at high speed and cause serious damage to the tuyere. Currently, hundreds of blast furnaces in China have long outages due to frequent replacement of tuyere and disassembly of blowpipes, affecting production.
[0004] The blast furnace tuyere consists of three sets: large, medium and small. The small tuyere set adopts a high-velocity structure, the medium set adopts a small cross-flow structure, and the large set adopts a water-cooled cast steel structure. The lining of the air supply device is made of ceramic castables, and the lining of the direct blowing pipe is guaranteed to be of sufficient thickness to meet the 1250℃ air supply temperature requirement to ensure safe air supply. During the production process of the iron-making blast furnace or during the process of lighting the furnace and supplying air after the blast furnace is shut down, the small set of the blast furnace tuyere is often blocked, burned out, or blocked. This requires timely replacement of the equipment. Due to the space limitations on site and the adhesion of the small tuyere set, the equipment is difficult to dismantle and install. Each tuyere set and blowpipe replacement requires 8 people to perform 1-3 hours of work. Each maintenance requires a large number of people to work for a long time, which affects the extension of the blast furnace shutdown time and reduces production. Utility Model Content
[0005] The utility model aims to provide a device which is convenient for disassembling and assembling a blast furnace blow pipe, which can complete the task of replacing the blast furnace blow pipe safely, quickly and conveniently, and solve the problems existing in the background technology.
[0006] The technical solution of the utility model is:
[0007] A device for facilitating the disassembly and assembly of a blast furnace blowpipe comprises a forklift, a forklift fork and two hollow wedge-shaped fork plates, wherein the two hollow wedge-shaped fork plates are respectively inserted into the forklift fork, and the distance between the two hollow wedge-shaped fork plates matches the blast furnace blowpipe; the hollow wedge-shaped fork plates are hollow wedge-shaped structures composed of an upper top plate, a lower wing plate and two side web plates, and one of the side web plates is provided with a positioning bolt that matches the forklift fork.
[0008] The size of the hollow wedge-shaped fork plate matches the fork of a forklift.
[0009] The hollow wedge-shaped fork plate is provided with a baffle matched with the blast furnace blowpipe.
[0010] The baffle on the hollow wedge-shaped fork plate matched with the blast furnace blowpipe is fixed on the upper top plate.
[0011] The beneficial effects of the utility model are: in a high-temperature working environment, the replacement of the blast furnace tuyere blowpipe can be completed safely and quickly, the replacement time of the blast furnace tuyere blowpipe is greatly shortened, the energy consumption is effectively reduced, the operability is strong, the production operation rate is improved, and time is gained for the blast furnace to create more benefits. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of blast furnace blowing;
[0013] Figure 2 It is a schematic diagram of the utility model;
[0014] Figure 3 It is a three-dimensional diagram of a hollow wedge-shaped fork plate;
[0015] Figure 4 It is the front view of the hollow wedge-shaped fork plate;
[0016] Figure 5 It is a top view of the hollow wedge-shaped fork plate;
[0017] Figure 6 It is a side view of a hollow wedge-shaped fork plate;
[0018] In the figure: 1. forklift; 2. forklift fork; 3. hollow wedge-shaped fork plate; 4. upper top plate; 5. baffle plate; 6. lower wing plate; 7. belly plate; 8. positioning bolt; 10. blast furnace blowpipe; 11. upper support plate; 12. lower support plate. DETAILED DESCRIPTION
[0019] The present invention will be further described below by way of examples with reference to the accompanying drawings.
[0020] See attached Figure 1-6 A device for facilitating the disassembly and assembly of a blast furnace blowpipe comprises a forklift 1, a forklift fork 2 and two hollow wedge-shaped fork plates 3, the two hollow wedge-shaped fork plates 3 are respectively inserted on the forklift fork 2, and the distance between the two hollow wedge-shaped fork plates 3 matches the blast furnace blowpipe 10; the hollow wedge-shaped fork plates 3 are a hollow wedge-shaped structure composed of an upper top plate 4, a lower wing plate 6 and two side webs 7, and one of the side webs 7 is provided with a positioning bolt 8 matching the forklift fork 2.
[0021] In this embodiment, refer to the attached Figure 1The blast furnace blowpipe 10 is a common air supply pipe at the blast furnace tuyere. Cross support plates are welded parallel and symmetrically at the center positions on both sides of the blowpipe body, including an upper support plate 11 and a lower support plate 12, which are used to complete the lifting, movement, installation or disassembly of the blast furnace blowpipe 10 itself.
[0022] See attached Figure 2 , a forklift 1 is also a commonly used transport vehicle in the art, and the forklift 1 is provided with a gantry forklift fork 2.
[0023] See attached Figure 3-6 The size of the hollow wedge-shaped fork plate 3 matches the forklift fork 2, and its cross section is a right triangle, wherein a baffle 5 is welded on the upper top plate 4, and the baffle 5 is mainly used for positioning the blast furnace blowpipe 10.
[0024] See attached Figure 2 When in use, first insert the two hollow wedge-shaped fork plates 3 on the forklift fork 2 respectively, and then position the hollow wedge-shaped fork plates 3 through the positioning bolts 8; drive the forklift 1, keep the fork plates corresponding to the center line of the blow pipe, and fork to the blast furnace blow pipe welded with the support plate; adjust the height position of the forklift gantry, slowly lift the blow pipe, so that gravity acts on the fork plates; then the forklift slowly backs up until the blast furnace blow pipe is pulled out as a whole, and then transported to the corresponding position. When reinstalling, follow the opposite method.
Claims
1. A device for facilitating the disassembly and assembly of a blast furnace blowpipe, characterized in that: The invention comprises a forklift (1), a forklift fork (2) and two hollow wedge-shaped fork plates (3), wherein the two hollow wedge-shaped fork plates (3) are respectively inserted into the forklift fork (2), and the distance between the two hollow wedge-shaped fork plates (3) matches the blast furnace blowpipe (10); the hollow wedge-shaped fork plates (3) are a hollow wedge-shaped structure composed of an upper top plate (4), a lower wing plate (6) and two side web plates (7), and one of the side web plates (7) is provided with a positioning bolt (8) matching the forklift fork (2).
2. The device for facilitating the disassembly and assembly of a blast furnace blowpipe according to claim 1, characterized in that: The size of the hollow wedge-shaped fork plate (3) matches the fork of the forklift (2).
3. The device for facilitating the disassembly and assembly of a blast furnace blowpipe according to claim 2, characterized in that: The hollow wedge-shaped fork plate (3) is provided with a baffle (5) that matches the blast furnace blowpipe (10).
4. The device for facilitating the disassembly and assembly of a blast furnace blowpipe according to claim 3, characterized in that: The baffle plate (5) on the hollow wedge-shaped fork plate (3) that matches the blast furnace blowpipe (10) is fixed on the upper top plate (4).