Pipe penetrating repairing device for cooling wall of blast furnace

Abstract

The utility model provides a pipe penetrating repairing device for a cooling wall of a blast furnace, which comprises a hose, the hose is arranged in a cooling pipeline of the cooling wall in a penetrating manner, two ends of the hose extend outwards from the end part of the cooling pipeline, and connecting pieces for connecting the hose with an external water pipe are arranged at the two ends of the hose. The connecting piece is detachably mounted at the end part of the hose; the connecting piece comprises a straight pipe arranged in the hose in a sleeved mode. The blast furnace cooling wall repairing device is reasonable in design structure, after the hose penetrates into a cooling pipeline, the connecting pieces can be rapidly installed at the two ends of the hose, so that the hose can be rapidly in butt joint with an external water pipe, the hose is fixed to the two ends of a straight pipe according to the jacket principle, and abrasion-resistant materials are pressed into the hose. The device has the advantages of being rapid in connection, resistant to abrasion, high in efficiency and long in service life, the sealing sleeve is arranged between the straight pipe and the hose, the problem of water leakage can be avoided, and rapid repairing of the cooling wall pipeline is achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of blast furnace cooling wall, and specifically relates to a pipe penetrating repairing device of blast furnace cooling wall. BACKGROUND

[0002] In the later period of blast furnace service, the water pipes of the blast furnace cooling wall are damaged in a large area, which seriously affects the smooth operation of the blast furnace and threatens the production safety of the blast furnace. If the water pipes of the blast furnace cooling wall are damaged, a large amount of cooling water will leak into the blast furnace, which will cause the heat in the blast furnace to drop, trigger the large-area peeling of the slag skin on the inner side of the cooling wall, cause the smelting index to drop significantly, and even induce the airflow disorder of the blast furnace condition. The traditional method for treating the damage of the cooling wall water pipe is to penetrate a soft water pipe, which is slightly thinner than the original water pipe, into the damaged water pipe for pipe penetrating treatment.

[0003] However, after the pipe penetrating, the connection mode of the soft water pipe and the external original cooling water pipe is mostly on-site welding or a soft pipe with a cold pressure joint of a fixed length customized by a soft pipe manufacturer, which has the defects of great operation difficulty and low efficiency, and since the lengths of the cooling water pipes in different blast furnace cooling walls are different, the use of the soft pipe with a fixed length is prone to the problems of poor matching degree and the inability to flexibly repair the pipe. UTILITY MODEL CONTENTS

[0004] The pipe penetrating repairing device of the blast furnace cooling wall can quickly install the connecting piece at the positions of the two ends of the soft pipe after the soft pipe is penetrated into the inside of the cooling pipe, so that the soft pipe can be quickly connected with the external water pipe, and the soft pipe is fixed to the two ends of the straight pipe for installation by the principle of the clamp sleeve and is pressed into the material with good heat conduction performance, high strength and wear resistance. The device has the advantages of connection fastening, high installation efficiency and long service life, a sealing device is arranged between the straight pipe and the soft pipe, the problem of water leakage can be avoided, and the quick repair of the cooling wall pipe is realized. This method not only has low spare part price, but also can restore the cooling efficiency of more than 70% of the damaged cooling wall.

[0005] The technical scheme adopted by the utility model is as follows: the pipe penetrating repairing device of the blast furnace cooling wall comprises a soft pipe, the soft pipe is penetrated into the inside of the cooling pipe of the cooling wall, the two ends of the soft pipe extend outward from the end part of the cooling pipe, connecting pieces for connecting the soft pipe with the external water pipe are installed at the positions of the two ends of the soft pipe, and the connecting pieces are detachably installed at the end part positions of the soft pipe.

[0006] The connecting piece comprises a straight pipe which is sleeved in the soft pipe, the straight pipe extends in the inside direction from the end part of the soft pipe, a fixing sleeve is sleeved outside the soft pipe, a clamp sleeve is installed in the inside of the fixing sleeve, the clamp sleeve is located between the fixing sleeve and the soft pipe, a nut is threadedly connected outside the fixing sleeve, and the clamp sleeve can gradually lock the soft pipe and the straight pipe in the process of screwing the nut.

[0007] The jacket is a conical sleeve structure with a conical outer wall and a cylindrical inner hole, the inner wall of which is in contact with the outer wall of the hose.

[0008] A sealing sleeve is also provided between the straight pipe and the flexible hose of the connector.

[0009] The sealing sleeve is made of rubber or silicone.

[0010] The inner wall of the fixing sleeve has a conical structure, and its taper is the same as that of the conical outer wall of the jacket.

[0011] A filling area is provided between the cooling pipes and hoses of the cooling wall to ensure a tight connection with the inner wall of the cooling pipes, which helps to improve cooling efficiency.

[0012] The connector also includes a flange connected to the straight pipe.

[0013] The beneficial effects of this utility model are as follows:

[0014] This utility model features a reasonable design structure. After the flexible hose is inserted into the cooling pipe, connectors can be quickly installed at both ends of the hose, allowing for rapid connection to external water pipes. Furthermore, the hose is fixed to both ends of the straight pipe using a clamping principle, and a material with good thermal conductivity, high strength, and wear resistance is pressed in. This device offers advantages such as secure connection, high installation efficiency, and long service life. A sealing device between the straight pipe and the flexible hose prevents leakage, enabling rapid repair of the cooling wall pipes. This method not only offers inexpensive spare parts but also restores approximately 70% or more of the cooling efficiency of a damaged cooling wall. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of the cooling wall of this utility model;

[0016] Figure 2 This utility model Figure 1 A magnified view of a portion of the document;

[0017] Figure 3 This is a perspective view of the jacket of this utility model;

[0018] Figure 4 This is a cross-sectional view of the nut of this utility model.

[0019] in:

[0020] 1. Cooling pipe; 2. Filling area; 3. Hose; 4. Sealing sleeve; 5. Nut; 501. Raised ring; 502. Conical pressure area; 6. Fixing sleeve; 7. Jacket; 701. Conical pressure area; 702. Conical outer wall; 703. First slot; 704. Second slot; 8. Connector; 801. Flange; 802. Straight pipe. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0022] As shown in the figure, the pipe penetrating repair device of the blast furnace cooling wall comprises a hose 3, which can adopt a metal hose 3, can be bent and penetrated into the cooling pipe 1, and has certain strength. The hose 3 is arranged at the internal position of the cooling pipe 1 of the cooling wall, and the two ends of the hose 3 extend outward from the end part of the cooling pipe 1. The connecting piece 8 for connecting the hose 3 with the external water pipe is arranged at the two end positions of the hose 3. The connecting piece 8 is detachably arranged at the end position of the hose 3. Since the connecting piece 8 is not welded, it has the functions of being detachable and replaceable. During the subsequent equipment maintenance, the parts can be detached and reused, thereby reducing the waste and saving the cost.

[0023] The connecting piece 8 comprises a straight pipe 802 arranged in the hose 3 and a flange 801 connected with the straight pipe 802. The flange 801 is used to directly connect with the external water pipe, and the straight pipe 802 is used to connect with the hose 3. In actual operation, the length of the hose 3 can be cut according to the size of the cooling pipe 1 in the cooling wall, and the hose 3 does not need to be specially customized. The straight pipe 802 extends from the end of the hose 3 to the internal direction. A fixing sleeve 6 is arranged outside the hose 3. A clamping sleeve 7 is arranged inside the fixing sleeve 6 and located between the fixing sleeve 6 and the hose 3. A nut 5 is threadedly connected outside the fixing sleeve 6. During the screwing of the nut 5, the clamping sleeve 7 can gradually lock the hose 3 and the straight pipe 802.

[0024] The clamping sleeve 7 is in the form of a conical sleeve structure, has a conical outer wall 702 and a cylindrical inner hole, and the inner hole wall is in contact with the outer wall of the hose 3. A plurality of first slots 703 and second slots 704 are arranged in the circumferential direction of the clamping sleeve 7. The first slots 703 pass through one end of the clamping sleeve 7, and the second slots 704 pass through the other end of the clamping sleeve 7. The conical pressure receiving area 701 is formed at the large diameter end position of the conical outer wall 702.

[0025] One end of the nut 5 has a convex ring 501 extending to the center direction, the inner wall of the convex ring 501 is a tapered structure and forms a tapered pressure area 502 matched with the tapered pressure receiving area 701, after the nut 5 is connected to the fixed sleeve 6, the tapered pressure area 502 can be in contact with the tapered pressure receiving area 701 on the clamp sleeve 7, and gradually make the opening width of the first slot 703 and the second slot 704 narrow, when the clamp sleeve 7, the nut 5, the hose 3 and the straight pipe 802 are connected, the fixed sleeve 6 with the clamp sleeve 7 is first sleeved outside the hose 3, the straight pipe 802 is inserted into the hose 3, in the process, the fixed sleeve 6 is gripped by hand to avoid the fixed sleeve 6 moving along the axis direction of the hose 3, then the nut 5 is installed on the fixed sleeve 6, in the process of tightening the nut 5, the tapered pressure area 502 on the nut 5 can be in contact with the tapered pressure receiving area 701 on the clamp sleeve 7, when the nut 5 continues to be tightened, the clamp sleeve 7 will be gradually contracted, so as to clamp the hose 3, and the clamping force can act on the straight pipe 802, so that the hose 3 and the straight pipe 802 are locked, since the clamp sleeve 7 is provided with a plurality of first slots 703 and a plurality of second slots 704, and the slots are uniformly distributed along the center of the clamp sleeve 7, the hose 3 and the straight pipe 802 can be more evenly stressed in the process of locking the hose 3, so as to avoid the problem of damage caused by excessive stress in some areas, and the clamp sleeve 7 has the advantages of good clamping effect, uniform stress and high working efficiency.

[0026] The straight pipe 802 of the connecting piece 8 and the hose 3 are further provided with a sealing sleeve 4, specifically, the sealing sleeve 4 is made of rubber or silicone, so as to realize the sealing effect between the straight pipe 802 and the hose 3, and avoid the problem of water leakage.

[0027] The inner wall of the fixed sleeve 6 is a tapered structure, the taper of which is the same as that of the tapered outer wall 702 of the clamp sleeve 7, so that the clamp sleeve 7 can move axially in the fixed sleeve 6, and the stress on each position of the outer wall of the clamp sleeve 7 can be uniform and stable during the axial movement, so that the clamp sleeve 7 can avoid deviation or shaking during locking, and the stability of the structure is improved.

[0028] The filling area 2 is provided between the cooling pipe 1 of the cooling wall and the hose 3, and the filling area 2 is a grouting material with high thermal conductivity, which can adopt carbon thermal conductive material, has the characteristics of high thermal conductivity and small fineness, and can improve the filling effect between the cooling pipe 1 and the hose 3, on the one hand, the hose 3 can be combined tightly to realize the purpose of fixing the hose 3, and on the other hand, the thermal conductivity can be improved.

[0029] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A device for repairing pipe penetrations in a blast furnace cooling wall, characterized in that, Includes a flexible hose, which is inserted inside the cooling pipe of the cooling wall, with both ends of the hose extending outward from the end of the cooling pipe. Connectors for connecting the hose to an external water pipe are installed at both ends of the hose, and the connectors are detachably installed at the ends of the hose. The connector includes a straight pipe fitted inside the hose and a flange connected to the straight pipe. The straight pipe extends from the end of the hose inward. A fixing sleeve is fitted on the outside of the hose. A clamp is installed inside the fixing sleeve. The clamp is located between the fixing sleeve and the hose. A nut is threaded on the outside of the fixing sleeve. As the nut is tightened, the clamp can gradually lock the hose and the straight pipe together.

2. The tube-penetrating repair device for blast furnace cooling walls according to claim 1, characterized in that, The jacket has a conical sleeve structure with a conical outer wall and a cylindrical inner hole. The inner wall of the inner hole is in contact with the outer wall of the hose. Several first slots and second slots are opened in the circumferential direction of the jacket. The first slots penetrate one end of the jacket and the second slots penetrate the other end of the jacket. A conical pressure zone is formed at the large-diameter end of the conical outer wall.

3. The tube-penetrating repair device for blast furnace cooling walls according to claim 2, characterized in that, One end of the nut has a convex ring extending towards the center. The inner wall of the convex ring has a conical structure and forms a conical pressure area that matches the conical pressure area. After the nut is connected to the fixed sleeve, the conical pressure area can contact the conical pressure area on the sleeve and gradually reduce the opening width of the first slot and the second slot.

4. The tube-penetrating repair device for blast furnace cooling walls according to claim 1, characterized in that, A sealing sleeve is also provided between the straight pipe and the flexible hose of the connector.

5. The tube-through repair device for blast furnace cooling walls according to claim 4, characterized in that, The sealing sleeve is made of rubber or silicone.

6. The tube-penetrating repair device for blast furnace cooling walls according to claim 2, characterized in that, The inner wall of the fixed sleeve has a tapered structure, and its taper is the same as that of the tapered outer wall of the jacket.

7. The tube-through repair device for blast furnace cooling walls according to claim 1, characterized in that, A filling zone is provided between the cooling pipes and hoses of the cooling wall.

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