CN210261840U

CN210261840U - Blast furnace stave poling is prosthetic devices again

Info

Publication number: CN210261840U
Application number: CN201920759206.0U
Authority: CN
Inventors: 郭科敬; 习立阳; 王彩永; 孙立强; 王文慧
Original assignee: Shijiazhuang Iron and Steel Co Ltd
Current assignee: Shijiazhuang Iron and Steel Co Ltd
Priority date: 2019-05-24
Filing date: 2019-05-24
Publication date: 2020-04-07
Anticipated expiration: 2029-05-24

Abstract

The utility model relates to a blast furnace stave poling is prosthetic devices again belongs to metallurgical industry blast furnace stave repair equipment technical field. The technical scheme is as follows: contain sphere stainless steel head (2), metal collapsible tube (3), screwed pipe (6), iron wire (7) and spring (8), the one end of metal collapsible tube (3) is equipped with screwed pipe (6), the other end of metal collapsible tube (3) is equipped with sphere stainless steel head (2), metal collapsible tube (3) and screwed pipe (6) constitute a body structure, the one end of iron wire (7) is fixed on sphere stainless steel head (2), the other end and spring (8) fixed connection of iron wire (7). When the pipe is penetrated, the spring is firstly penetrated into the cooling water pipe in the cooling wall of the blast furnace, and then the spring drives the iron wire and the metal hose to penetrate through the cooling water pipe. The utility model has the advantages that: the pipe penetrating difficulty can be reduced, and the pipe penetrating repair time is shortened, so that the time for repairing the cooling wall is shortened, and the pipe penetrating operation can be performed on the pipeline with the irregular shape.

Description

Blast furnace stave poling is prosthetic devices again

Technical Field

The utility model relates to a blast furnace stave poling is prosthetic devices again belongs to metallurgical industry blast furnace stave repair equipment technical field.

Background

In the blast furnace iron-making area, the blast furnace stave is damaged due to the influence of the blast furnace operation schedule, the cooling schedule, the stave quality, and the stave installation manner or the furnace campaign limit. Because the blast furnace pursues stable and long service life and long repair period, the maintenance technology of the damaged cooling wall is more and more emphasized.

The common maintenance method of the blast furnace cooling wall comprises the following steps: industrial water shrinkage curing, pipe penetration curing, micro cooler installation and the like. The industrial water shrinkage curing is only suitable for cooling wall water pipes with curing value and water pipes with serious water leakage, and the water pipes are inevitably grouted and blocked in order to prevent water from leaking into the furnace; the installation of a micro cooler for maintenance has excessive capital investment, and the installation of a cooling column has small and uneven cooling intensity, the temperature of the furnace shell is raised, and the furnace shell is also matched with external cold water for cooling the furnace shell. Because the furnace skin drenches water, the stave leaks once more, lacks the visual observation, and is very difficult to the inspection of later stage stave, and a little careless can cause the stove to cool. In addition, the operation furnace type is easy to change, and is extremely unfavorable for the smooth operation of the blast furnace and the improvement of the smelting strength; the pipe-through maintenance not only can maintain a reasonable operation furnace type, but also can delay the damage speed of the peripheral cooling wall, avoids water leakage in the furnace, and consumes less funds, so that the pipe-through maintenance of the cooling wall is more and more accepted by the same industry. However, in the process of pipe penetration, some serpentine pipes even pass through a lot of elbows, which causes the phenomenon that the pipe penetration is difficult or even impossible, so how to simply and quickly perform the pipe penetration of the cooling wall becomes a subject faced by technical personnel in the same industry.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a blast furnace stave poling is prosthetic devices again can reduce the poling degree of difficulty, shortens the poling repair time to shorten the time of restoreing the stave, solve the problem that exists among the background art.

The technical scheme of the utility model is that:

the utility model provides a blast furnace stave poling is prosthetic devices again, contains sphere stainless steel head, metal collapsible tube, screwed pipe, iron wire and spring, and metal collapsible tube's one end is equipped with the screwed pipe, and metal collapsible tube's the other end is equipped with sphere stainless steel head, and sphere stainless steel head, metal collapsible tube and screwed pipe constitute an organic whole structure, and the one end of iron wire is fixed on sphere stainless steel head, the other end and the spring fixed connection of iron wire.

The diameters of the spherical stainless steel head and the metal hose are smaller than the diameter of the cooling wall water pipe.

The blast furnace cooling wall pipe penetrating and repairing device further comprises a blast furnace cooling wall and a cooling water pipe in the blast furnace cooling wall, the metal hose is arranged in the cooling water pipe, and a sleeve opening is fixed on a threaded pipe of the metal hose to form a closed end.

And two ends of the cooling water pipe are respectively provided with a grouting hole, and the central line of the grouting hole is perpendicular to the central line of the cooling water pipe.

By adopting the utility model, the spring is firstly penetrated into the cooling water pipe in the cooling wall of the blast furnace, and then the spring drives the iron wire and the metal hose to penetrate through the cooling water pipe. Because the spring is soft and elastic, the pipe penetration is easy, and the construction efficiency is greatly improved. After the pipe is penetrated, the water leakage condition of the metal hose is checked by water, and grouting operation is carried out after no water leakage is confirmed.

The utility model has the advantages that: the pipe penetrating difficulty can be reduced, and the pipe penetrating repair time is shortened, so that the time for repairing the cooling wall is shortened, and the pipe penetrating operation can be performed on irregular pipelines.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the present invention in use;

in the figure: grouting hole 1, spherical stainless steel head 2, metal hose 3, blast furnace cooling wall 4, cooling water pipe 5, screwed pipe 6, iron wire 7, spring 8.

Detailed Description

The invention will be further explained by way of example with reference to the accompanying drawings.

Referring to the attached drawing 1, the blast furnace cooling wall poling is prosthetic devices again contains sphere stainless steel head 2, metal collapsible tube 3, screwed pipe 6, iron wire 7 and spring 8, metal collapsible tube 3's one end is equipped with screwed pipe 6, metal collapsible tube 3's the other end is equipped with sphere stainless steel head 2, metal collapsible tube 3 and screwed pipe 6 constitute an organic whole structure, the one end of iron wire 7 is fixed on sphere carbon steel head 2, the other end and the spring 8 fixed connection of iron wire 7.

In this embodiment, referring to fig. 1 and 2, the cooling wall 4 of the blast furnace adopts a common vertical cooling pipe series connection process, after the damping down, the water inlet and outlet valves are closed, the residual water in the cooling water pipe 5 is discharged, and the water inlet and outlet elbows of the cooling wall are detached.

One end of the metal hose 3 is a threaded pipe 6, the other end of the metal hose is a spherical carbon steel head 2, and the diameters of the spherical carbon steel head 2 and the metal hose 3 are both smaller than the diameter of the cooling wall water pipe 5. During manufacturing, the iron wire 7 and the spring 8 are tightly fixed, and then the iron wire 7 is fixed on the spherical stainless steel head 2 with the holes.

When the pipe is penetrated, the spring 8 firstly penetrates through the cooling water pipe 5, and then the iron wire 7 is driven to penetrate through the cooling water pipe 5. Because the spring is soft and elastic, the pipe penetration is easy, the metal hose 3 is pulled to pass through, the other end is clamped by the threaded pipe 6, the whole process is very smooth, the whole pipe penetration process does not exceed ten minutes, and the smooth process can be realized within 1-2 minutes.

After pipe penetration, water inlet and outlet valves are arranged at two ends of the metal hose 3 and connected with a water inlet pipe and a water outlet pipe, wherein a pressure gauge is arranged on the water inlet pipe, the pressure gauge is used for controlling water pressure, and the pressure gauge can also be used for carrying out pressure test inspection on whether the water pipe penetrating the pipe at the later stage leaks water for the second time. And (5) checking whether the metal hose 3 leaks water at each welding port through water. In order to ensure the cooling effect, the metal hose is thin, and the metal hose is easy to puncture in the welding process, so that the water passing inspection is required. After no water leakage is confirmed, the threaded pipe 6 of the metal hose 3 is welded by a proper sleeve fastener, the water pipe at the end is sealed, and the spherical stainless steel head 2 at the other end is used for connecting a traction hose. In order to ensure good thermal conductivity and basic cooling effect, the grouting operation is carried out by using carbon daub with relatively high carbon content. When grouting materials, a mode of downward feeding and upward discharging is adopted, when grouting holes in the upper portion have mud to be discharged, the upper portion grouting valve is closed for a period of time, and pressure is charged, so that mud is fully filled.

Claims

1. The utility model provides a blast furnace stave poling is prosthetic devices again, its characterized in that contains sphere stainless steel head (2), metal collapsible tube (3), screwed pipe (6), iron wire (7) and spring (8), the one end of metal collapsible tube (3) is equipped with screwed pipe (6), the other end of metal collapsible tube (3) is equipped with sphere stainless steel head (2), metal collapsible tube (3) and screwed pipe (6) constitute an organic whole structure, the one end of iron wire (7) is fixed on sphere stainless steel head (2), the other end and spring (8) fixed connection of iron wire (7).

2. The blast furnace stave penetration reconditioning device of claim 1, wherein said spherical stainless steel head (2) and said threaded pipe (6) each have a diameter smaller than the diameter of said metal hose (3).

3. The blast furnace cooling wall pipe penetrating and repairing device according to claim 1 or 2, wherein the device further comprises a blast furnace cooling wall (4) and a cooling water pipe (5) in the blast furnace cooling wall (4), the metal hose (3) is arranged in the cooling water pipe (5), and a sleeve opening is fixed on a threaded pipe (6) of the metal hose (3) to form a closed end.

4. The blast furnace cooling wall pipe penetrating and repairing device according to claim 3, wherein two ends of the cooling water pipe (5) are respectively provided with a grouting hole (1), and the center line of the grouting hole (1) is perpendicular to the center line of the cooling water pipe (5).