Pipe penetrating repairing device for cooling wall of blast furnace

Abstract

The utility model relates to the technical field of blast furnace cooling wall repairing, and provides a blast furnace cooling wall pipe penetrating repairing device which is used for temporarily repairing a cooling water pipe and comprises a dredging pipe, one end of the dredging pipe is connected with a rotation driving device, and the other end of the dredging pipe is used for penetrating through the cooling water pipe; one end of the pulling rope is detachably connected with the other end of the dredging pipe, and the pulling rope is configured to be that after the other end of the dredging pipe penetrates through the cooling water pipe, one end of the pulling rope is arranged at the other end of the dredging pipe, and the other end of the dredging pipe carries one end of the pulling rope to penetrate through the cooling water pipe; one end of the water passing hose is detachably connected with one end of the traction rope, and the water passing hose is configured in the mode that after the water passing hose is connected with the traction rope, the traction rope pulls one end of the water passing hose to penetrate through the cooling water pipe, and after one end of the water passing hose penetrates through the cooling water pipe, the two ends of the water passing hose are used for being communicated with the water inlet pipe and the water outlet pipe respectively. The technical problem that in the prior art, a cooling water pipe in a cooling wall is difficult to maintain after being damaged is solved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the field of blast furnace cooling wall repair technology, specifically, to a blast furnace cooling wall tube repair device. Background Technology

[0002] A blast furnace cooling wall is a device installed inside the blast furnace body to cool and protect the furnace lining. Blast furnace cooling walls are usually made of cast iron and mainly consist of cooling water pipes and a metal wall. The main body of the cooling water pipes is located inside the metal wall in a C-shape or U-shape, while the inlet and outlet parts of the cooling water pipes extend out of the metal wall and are connected to the inlet and outlet pipes.

[0003] The cooling water pipes inside the cooling wall may be damaged due to problems during the production process or other issues. In existing technologies, once a cooling pipe is found to be damaged, the entire cooling wall needs to be replaced, which is not only costly but also has a long repair cycle, hindering the company's development. Utility Model Content

[0004] To overcome the above-mentioned defects, the embodiments of this disclosure provide a blast furnace cooling wall tube repair device, which solves the technical problem of difficult repair after the cooling water pipes inside the cooling wall are damaged in the prior art.

[0005] According to one aspect, at least one embodiment of this disclosure provides a blast furnace cooling wall tube penetration repair device for temporary repair of cooling water pipes, comprising:

[0006] A drain pipe, one end of which is connected to a rotating drive device, and the other end of which is used to pass through a cooling water pipe;

[0007] A traction rope, one end of which is detachably connected to the other end of the unblocking pipe, is configured such that after the other end of the unblocking pipe passes through the cooling water pipe, one end of the traction rope is located at the other end of the unblocking pipe, and the other end of the unblocking pipe carries one end of the traction rope through the cooling water pipe.

[0008] A water-conducting hose, one end of which is detachably connected to one end of the traction rope, is configured such that after the water-conducting hose is connected to the traction rope, the traction rope pulls one end of the water-conducting hose through the cooling water pipe, and after one end of the water-conducting hose passes through the cooling water pipe, the two ends of the water-conducting hose are respectively used to connect to the inlet pipe and the outlet pipe.

[0009] For example, in a blast furnace cooling wall through-pipe repair device provided in at least one embodiment of this disclosure, there is a gap between the inner wall of the cooling water pipe and the outer wall of the water-conducting hose, and the gap is used to fill the heat-resistant castable material.

[0010] For example, in a blast furnace cooling wall pipe penetration repair device provided in at least one embodiment of this disclosure, the water hose is a corrugated hose.

[0011] For example, in a blast furnace cooling wall tube repair device provided in at least one embodiment of this disclosure, the unblocking tube is a spring tube.

[0012] For example, in a blast furnace cooling wall tube repair device provided in at least one embodiment of this disclosure, the traction rope is a steel wire rope.

[0013] For example, in a blast furnace cooling wall tube repair device provided in at least one embodiment of this disclosure, a first connector and a second connector are respectively provided at both ends of the unblocking pipe. The first connector is used to connect to the rotation drive device, and the second connector is connected to the traction rope.

[0014] For example, in a blast furnace cooling wall tube repair device provided in at least one embodiment of this disclosure, the end of the second connector away from the unblocking pipe is hemispherical, and the second connector has a first through hole. The first through hole is configured such that after the traction rope passes through the first through hole, the traction rope is knotted and connected to the second connector.

[0015] For example, in at least one embodiment of this disclosure, a blast furnace cooling wall tube perforation repair device further includes:

[0016] The third connector is detachably mounted at one end of the water hose and is connected to the traction rope.

[0017] For example, in a blast furnace cooling wall tube repair device provided in at least one embodiment of this disclosure, the end of the third connector away from the water hose is hemispherical, the third connector has a slot, and the traction rope is knotted and connected to the third connector through the slot.

[0018] For example, in a blast furnace cooling wall tube repair device provided in at least one embodiment of this disclosure, one end of the water-conducting hose has an external thread section and a connecting section. The connecting section is closer to the end of the water-conducting hose than the external thread section. The external thread section is threadedly connected to the third connector. The connecting section is used to connect to the connecting flange of the water inlet pipe or the water outlet pipe.

[0019] The beneficial effects of the embodiments disclosed herein are as follows:

[0020] In this disclosure, after the cooling wall is damaged, a water-passing hose is introduced into the cooling water pipe to replace the cooling water pipe, so that the cooling wall can continue to be used. The damaged cooling wall is then replaced uniformly during the blast furnace overhaul. This method reduces the frequency of cooling wall replacement and lowers the maintenance cost and time of the blast furnace.

[0021] The drain pipe can act as a guide inside the U-shaped or C-shaped cooling water pipe, allowing one end of the traction rope to pass through the cooling water pipe. The traction rope can then guide the water hose through the cooling water pipe by pulling, avoiding direct pulling of the drain pipe which would reduce its service life. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0023] Figure 1 This is a structural schematic diagram of the unblocking pipe, the first connector, and the second connector disclosed herein.

[0024] Figure 2 This is a schematic diagram of the water-conducting hose and traction rope structure disclosed in this publication;

[0025] Figure 3 This is a schematic diagram of the structure of the water-conducting hose after it is located inside the cooling water pipe.

[0026] Figure 4 for Figure 2 Enlarged structural diagram at point A in the middle;

[0027] Figure 5 A cross-sectional structural diagram of the water hose and the third connecting component traction rope;

[0028] In the diagram: 100, unblocking pipe; 200, traction rope; 300, water hose; 400, gap; 110, first connector; 120, second connector; 121, first through hole; 310, third connector; 313, slot; 311, external thread section; 312, connecting section. Detailed Implementation

[0029] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0030] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0031] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0032] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0034] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0035] like Figures 1-5As shown, this invention discloses an embodiment of a blast furnace cooling wall pipe repair device, which mainly consists of three parts: a clearing pipe 100, a traction rope 200, and a water-conducting hose 300. It works in conjunction with a rotation drive device to temporarily repair damaged cooling water pipes within the blast furnace cooling wall. The rotation drive device provides power to the clearing pipe 100, enabling it to pass through the cooling water pipe. The traction rope 200 guides the water-conducting hose 300 through the cooling water pipe, ultimately connecting the inlet and outlet pipes to restore the cooling water pipe's water flow function.

[0036] Working principle: After the cooling wall is damaged, the blast furnace is shut down and the furnace body is cooled for more than 8 hours. The inlet and outlet water pipes of the damaged cooling wall are closed. Then, the operator cuts off the part of the cooling water pipe outside the cooling wall along the side wall. Water is injected into the cooling water pipe through the external water pipe. The patency of the cooling water pipe is determined by whether water flows out from the other end of the cooling water pipe. If the test result is that it is unobstructed, a rotary drive device (which can be an electric drill or an electric hammer) is connected to the unblocking pipe 100. By rotating the rotary drive device, the other end of the unblocking pipe 100 is transported from one end of the cooling water pipe to the other end of the cooling water pipe.

[0037] One end of the traction rope 200 is fixed to the end of the unblocking pipe 100 away from the rotating drive device. The rotating drive device is reversed, and the end of the traction rope 200 fixed to the unblocking pipe 100 is passed through the cooling water pipe by withdrawing the unblocking pipe 100 from the cooling water pipe. Then, the water-passing hose 300 is pulled into the cooling water pipe using the traction rope 200. After the water-passing hose 300 is exposed at both ends of the cooling water pipe, special connectors are welded to both ends of the water-passing hose 300. The special connectors are connected to the inlet and outlet pipes, so that the interior of the cooling wall can be cooled through the water-passing hose 300.

[0038] After the cooling wall is damaged, the water hose 300 is introduced into the cooling water pipe to replace the cooling water pipe, so that the cooling wall can continue to be used. The damaged cooling wall is replaced uniformly when the blast furnace is overhauled. This method reduces the frequency of cooling wall replacement and reduces the maintenance cost and time of the blast furnace.

[0039] The unblocking pipe 100 can act as a guide inside the U-shaped or C-shaped cooling water pipe, allowing one end of the traction rope 200 to pass through the cooling water pipe. The traction rope 200 can guide the water hose 300 through the cooling water pipe by pulling, thus avoiding the reduction of the service life of the unblocking pipe 100 due to direct pulling.

[0040] In some examples, after the water supply hose 300 is connected to the inlet and outlet pipes, heat-resistant castable refractory needs to be filled between the outer wall of the water supply hose 300 and the inner wall of the cooling water pipe. Since the cooling wall is in direct contact with the interior of the blast furnace, and the cooling wall is made of cast iron with good thermal conductivity, filling the space between the interior of the cooling water pipe and the outer wall of the water supply hose 300 with heat-resistant castable refractory can prevent the cooling wall from directly contacting the water supply hose 300 and causing the water supply hose 300 to be scalded.

[0041] The heat-resistant castables can be made of slurry, thermosetting phenolic resin, or aluminum silicon carbide carbonaceous solid powder.

[0042] In some examples, the water hose 300 is a stainless steel corrugated hose. Stainless steel corrugated hoses can be used in high-temperature environments and do not become brittle or hard under natural conditions, exhibiting excellent anti-aging properties.

[0043] In some examples, the drain pipe 100 is a metal spring pipe, which can be passed through U-shaped or C-shaped pipes by using an electric drill and hammer drill.

[0044] In some examples, the traction rope 200 can be made of galvanized steel wire rope, stainless steel wire rope, copper-plated steel wire rope, etc. The traction rope 200 can provide sufficient traction force and has a certain degree of flexibility to adapt to the bending of the cooling water pipe.

[0045] In some examples, the two ends of the drain pipe 100 are respectively provided with a first connector 110 and a second connector 120. The first connector 110 is used to connect to the rotation drive device, and the second connector is connected to the traction rope 200.

[0046] The first connector 110 adopts a conventional connection structure and can be snapped into the interface on an electric hammer or drill. This first connector 110 is included when purchasing the metal drain pipe 100, and will not be described in detail here. The second connector 120 can be connected to the traction rope 200 by snapping, hooking, clamping, etc., so that the traction rope 200 delivery pipe can pass through the cooling water pipe with one end of the traction rope 200.

[0047] Both the first connector 110 and the second connector 120 can be fixed to the drain pipe 100 by means of threaded connection, welding, snap-fit, etc.

[0048] In some examples, the end of the second connector 120 furthest from the drain pipe 100 is hemispherical. This hemispherical shape allows the second connector 120 to pass more smoothly through bends in the cooling water pipe. The second connector 120 has a first through hole 121, configured such that after the traction rope 200 passes through the first through hole 121, it is knotted to connect to the second connector 120. After one end of the traction rope 200 passes through the first through hole 121, tying a knot secures the traction rope 200 to the second connector 120, improving the ease of connection.

[0049] In some examples, a third connector 310 is also included. The third connector 310 is detachably connected to one end of the water hose 300 via a threaded connection, snap-fit, or other means. The third connector 310 is connected to the traction rope 200. The function of the third connector 310 is similar to that of the second connector 120, allowing for convenient connection to the traction rope 200.

[0050] In some examples, the end of the third connector 310 away from the water hose 300 is hemispherical, allowing the water hose 300 to pass smoothly through the cooling water pipe. The third connector 310 has a slot 313 around which the traction rope 200 can be wound and then connected to the second connector 120 by knotting.

[0051] It should be further explained that the first through hole 121 of the second connector 120 and the slot 313 of the third connector 310 can be interchanged. For example, the second connector 120 can also be connected to the traction rope 200 through the slot 313, and the third connector 310 can be connected to the traction rope 200 through the first through hole 121.

[0052] In some examples, one end of the water hose 300 has an external thread section 311 and a connecting section 312, with the connecting section 312 being closer to the end of the water hose 300 than the external thread section 311. The external thread section 311 is threaded to a third connector 310, and the connecting section 312 is used to connect to a connecting flange of an inlet or outlet pipe.

[0053] The third connector 310 is connected to the water hose 300 via a threaded connection, which is not only convenient to install and disassemble but also ensures a reliable connection. The arrangement of the connecting section 312 and the external thread section 311 allows the water hose 300 to be properly welded to the connecting flange.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A blast furnace stave pipe repair device for temporarily repairing a cooling water pipe, characterized by, The utility model relates to a kind of cooling water pipe dredging device, including: Dredging pipe (100), one end is connected with rotating drive device, the other end of the dredging pipe (100) is used to pass through cooling water pipe; Tow rope (200), one end is detachably connected with the other end of the dredging pipe (100), the tow rope (200) is configured, after the other end of the dredging pipe (100) passes through cooling water pipe, one end of the tow rope (200) is arranged at the other end of the dredging pipe (100), the other end of the dredging pipe (100) carries one end of the tow rope (200) and passes through cooling water pipe; Water hose (300), one end is detachably connected with one end of the tow rope (200), the water hose (300) is configured, after the water hose (300) is connected with the tow rope (200), the tow rope (200) pulls one end of the water hose (300) and passes through cooling water pipe, after one end of the water hose (300) passes through cooling water pipe, two ends of the water hose (300) are used to communicate with inlet pipe and outlet pipe respectively.

2. A device for patching a cooling stave of a blast furnace according to claim 1, characterized in that Cooling water pipe has gap (400) between inner wall and the outer wall of the water hose (300), and the gap (400) is used to fill heat-resistant castable.

3. A device for patching a cooling stave of a blast furnace according to claim 1, characterized in that The water hose (300) is corrugated hose.

4. A device for patching a cooling stave of a blast furnace according to claim 1, characterized in that, The dredging pipe (100) is spring pipe.

5. A device for patching a cooling stave of a blast furnace according to claim 1, characterized in that, The tow rope (200) is steel wire rope.

6. A device for patching a cooling stave of a blast furnace according to claim 1, characterized in that, The dredging pipe (100) is provided with first connecting piece (110) and second connecting piece (120) at two ends respectively, the first connecting piece (110) is used to be connected with rotating drive device, and the second connecting is connected with the tow rope (200).

7. A device for patching a cooling stave of a blast furnace according to claim 6, characterized in that The second connecting piece (120) is hemispherical away from one end of the dredging pipe (100), and the second connecting piece (120) has first through hole (121), and the first through hole (121) is configured, after the tow rope (200) passes through the first through hole (121), the tow rope (200) is tied with the second connecting piece (120).

8. A device for patching a cooling stave of a blast furnace according to claim 1, characterized in that Further including: Third connecting piece (310) is detachably arranged at one end of the water hose (300), and the third connecting piece (310) is connected with the tow rope (200).

9. A device for patching a cooling stave of a blast furnace according to claim 8, characterized in that The third connecting piece (310) is hemispherical away from one end of the water hose (300), and the third connecting piece (310) has clamping groove (313), and the tow rope (200) is tied with the third connecting piece (310) through the clamping groove (313).

10. A device for patching a cooling stave of a blast furnace according to claim 9, characterized in that One end of the water hose (300) has external thread section (311) and connecting section (312), the connecting section (312) is closer to the end of the water hose (300) relative to the external thread section (311), the external thread section (311) is threadedly connected with the third connecting piece (310), and the connecting section (312) is used to be connected with the connecting flange of inlet pipe or outlet pipe.

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