Device for opening residual iron notch of hearth during overhaul of blast furnace

Abstract

The utility model relates to a device for opening a hearth residual iron notch in blast furnace overhaul, which comprises a tapping machine and a bottom plate, the tapping machine is fixedly connected above the bottom plate, rollers are connected at the bottom of the bottom plate, a rail is fixedly connected in a residual iron runner, the rail is arranged in the middle of the residual iron runner and is parallel to the residual iron runner, and the tapping machine can move in the rail through the rollers. And a handrail is arranged above the tapping machine. The handrail comprises a transverse pipe, the bottom of the transverse pipe is connected with the bottom plate through a support, and a holding rod is sleeved with the transverse pipe in a penetrating mode and can slide along the inner wall of the transverse pipe. When the device is used for working, an operator does not need to stand in a residual iron runner and is far away from a dangerous area, so that unsafe factors in the operation process are avoided. The number of operators is reduced, the labor intensity is reduced, meanwhile, the device is fixed in position, the drilling position is more accurate, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to blast furnace maintenance equipment, in particular to a device for opening a residual iron mouth of a furnace during overhaul of a blast furnace. Background Art

[0002] When a blast furnace is over, the molten iron in the furnace needs to be released for overhaul. It is necessary to drill holes in the furnace to release the molten iron remaining in the blast furnace. Usually, when drilling refractory materials with a rock drill, operators need to stand in the pre-built residual iron groove and on the residual iron groove platform. There are 3-4 people to support the rock drill, and 2-3 people to push the rock drill in. The labor intensity is high, time-consuming and labor-intensive. In addition, there is a risk of molten iron suddenly flowing out during the process of drilling refractory materials with the rock drill, and there is a risk of injury to people in the residual iron groove, which is unsafe.

[0003] Patent CN105002319B discloses a mobile scrap iron mouth opening machine, which comprises: a mobile trolley; an opening mechanism, which is arranged on the mobile trolley; a pneumatic control system, which is arranged on the mobile trolley, and the pneumatic control system is connected to the opening mechanism through a connecting hose; the opening mechanism comprises: an opening machine bracket and a pneumatic rock drill and a pneumatic motor arranged on the opening machine bracket; the mobile trolley is provided with a first bracket supporting the opening machine bracket. The device moves along the upper surface of the scrap iron ditch, and has high requirements on the construction quality of the scrap iron ditch. The on-site environment is harsh, and it is difficult to meet the requirements of the work site. The on-site dust is large, and the pneumatic control system is prone to failure. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a device for opening the residual iron mouth of the furnace during overhaul of a blast furnace, so as to solve the problem of potential safety hazards in the process of opening the residual iron mouth of the furnace during overhaul.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A device for opening a residual iron mouth of a furnace during overhaul of a blast furnace comprises an opening machine and a bottom plate. The opening machine is fixedly connected to the top of the bottom plate, a roller is connected to the bottom of the bottom plate, and a track is fixedly connected in a residual iron groove. The track is arranged in the middle of the residual iron groove and is parallel to the residual iron groove. The opening machine can move in the track through the roller, and a handrail is arranged above the opening machine.

[0007] The handrail comprises a transverse tube, the bottom of which is connected to the bottom plate through a bracket, a gripping rod is sleeved in the transverse tube, and the gripping rod can slide along the inner wall of the transverse tube.

[0008] The top of the bracket is fixedly connected to the transverse pipe, the bottom of the bracket is fixedly connected to the bottom plate, and both sides of the bottom of the bracket are respectively connected to stoppers, which are arranged on the outside of the track.

[0009] The horizontal pipe is 200-300mm wider than the residual iron groove.

[0010] The length of the gripping rod is 800-1000 mm.

[0011] The top of the handrail exceeds the upper edge of the residual iron groove by 700-900 mm.

[0012] One end of the track is fixedly connected to the furnace shell below the residual iron opening of the furnace cylinder.

[0013] The track is a groove structure, and the width of the groove is 40-50mm larger than the width between the rollers on both sides of the opening machine.

[0014] Compared with the existing technology, the beneficial effects of the utility model are:

[0015] When using the utility model, the operator does not need to stand in the residual iron groove, stays away from the dangerous area, and avoids unsafe factors in the operation process. It also reduces the number of operators and reduces labor intensity. At the same time, the position of the device is fixed, the drilling position is more accurate, and the work efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 It is a top view of the utility model.

[0018] In the figure: an opening machine 1, a bottom plate 2, a roller 3, a residual iron groove 4, a track 5, a handrail 6, a furnace shell 7, a cross pipe 61, a bracket 62, a grip 63, and a stopper 64. DETAILED DESCRIPTION

[0019] In the description of the present invention, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means more than two.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0021] like Figure 1-Figure 2A device for opening a residual iron mouth of a furnace during overhaul of a blast furnace comprises an opening machine 1 and a bottom plate 2. The opening machine 1 is fixedly connected to the top of the bottom plate 2, a roller 3 is connected to the bottom of the bottom plate 2, and a track 5 is fixedly connected to the residual iron groove 4. The track 5 is arranged in the middle of the residual iron groove 4 and is parallel to the residual iron groove 4. The opening machine 1 can move in the track 5 through the roller 3, and a handrail 6 is arranged above the opening machine 1.

[0022] The handrail 6 comprises a transverse tube 61 , the bottom of which is connected to the base plate 2 via a bracket 62 , a gripping rod 63 is sleeved inside the transverse tube 61 , and the gripping rod 63 can slide along the inner wall of the transverse tube 61 .

[0023] The top of the bracket 62 is fixedly connected to the transverse tube 61, the bottom of the bracket 62 is fixedly connected to the bottom plate 2, and the two sides of the bottom of the bracket 61 are respectively connected to the stopper 64, which is arranged on the outside of the track 5 to ensure that the opening machine moves in the middle of the track.

[0024] The transverse pipe 61 is 200-300 mm wider than the residual iron groove 4.

[0025] The length of the gripping rod 62 is 800-1000 mm.

[0026] The top of the handrail 6 exceeds the upper edge of the residual iron groove 4 by 700-900 mm.

[0027] One end of the track is fixedly connected to the furnace shell below the residual iron opening of the furnace cylinder.

[0028] The track is a groove structure, and the width of the groove is 40-50mm larger than the width between the rollers on both sides of the opening machine.

[0029] When working, first use a water welding gun to cut the furnace shell, use a burning oxygen tube to melt the cooling wall, then weld the front end of the track of the device for opening the residual iron mouth of the furnace cylinder during blast furnace overhaul to the furnace shell below the selected residual iron mouth, adjust the track and the residual iron groove to be parallel, weld the track and the residual iron groove to fix, start the opening machine, and the operator stands on the platform on both sides of the residual iron groove, holds the handrail handle and pushes the opening machine toward the residual iron mouth until the opening machine drills the refractory material to the surface and turns red, then takes out the opening machine, removes the track, and sprays the refractory material with the flame of the burning oxygen tube until the molten iron flows out.

[0030] In order to make the purpose, technical scheme and technical effect of the utility model clearer, the technical scheme in the embodiment of the utility model is now described clearly and completely. However, the embodiment described below is only a part of the embodiment of the utility model, not all of the embodiments. In combination with the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Example 1

[0032] A device for opening a residual iron mouth of a furnace during overhaul of a blast furnace comprises an opening machine 1 and a bottom plate 2. The opening machine 1 is fixedly connected to the top of the bottom plate 2, a roller 3 is connected to the bottom of the bottom plate 2, and a track 5 is fixedly connected to a residual iron groove 4. The track 5 is arranged in the middle of the residual iron groove 4 and is parallel to the residual iron groove 4. One end of the track is fixedly connected to a furnace shell below the residual iron mouth of the furnace. The opening machine 1 can move in the track 5 through the roller 3. The track is made of channel steel, and the width of the notch is 40 mm larger than the width between the rollers on both sides of the opening machine.

[0033] A handrail 6 is arranged above the opening machine 1. The top of the handrail 6 exceeds the upper edge of the residual iron groove 4 by 700 mm. The handrail 6 comprises a transverse tube 61, the bottom of which is connected to the bottom plate 2 via a bracket 62, the top of the bracket 62 is fixedly connected to the transverse tube 61, the bottom of the bracket 62 is fixedly connected to the bottom plate 2, a gripping rod 63 is sleeved in the transverse tube 61, and the gripping rod 63 can slide along the inner wall of the transverse tube 61. The transverse tube 61 is 220 mm wider than the residual iron groove 4. The length of the gripping rod 62 is 850 mm.

[0034] Example 2

[0035] A device for opening a residual iron mouth of a furnace during overhaul of a blast furnace comprises an opening machine 1 and a bottom plate 2. The opening machine 1 is fixedly connected to the top of the bottom plate 2, a roller 3 is connected to the bottom of the bottom plate 2, and a track 5 is fixedly connected to a residual iron groove 4. The track 5 is arranged in the middle of the residual iron groove 4 and is parallel to the residual iron groove 4. One end of the track is fixedly connected to a furnace shell below the residual iron mouth of the furnace. The opening machine 1 can move in the track 5 through the roller 3. The track is made of channel steel, and the width of the notch is 45 mm larger than the width between the rollers on both sides of the opening machine.

[0036] A handrail 6 is arranged above the opening machine 1. The top of the handrail 6 exceeds the upper edge of the residual iron groove 4 by 800mm. The handrail 6 includes a transverse tube 61, the bottom of which is connected to the bottom plate 2 through a bracket 62, the top of the bracket 62 is fixedly connected to the transverse tube 61, the bottom of the bracket 62 is fixedly connected to the bottom plate 2, and the two sides of the bottom of the bracket 61 are respectively connected to the block 64, and the block 64 is arranged on the outside of the track 5. A gripping rod 63 is inserted into the transverse tube 61, and the gripping rod 63 can slide along the inner wall of the transverse tube 61. The transverse tube 61 is 260mm wider than the residual iron groove 4. The length of the gripping rod 62 is 9000mm.

[0037] Example 3

[0038] A device for opening a residual iron mouth of a furnace during overhaul of a blast furnace comprises an opening machine 1 and a bottom plate 2. The opening machine 1 is fixedly connected to the top of the bottom plate 2, a roller 3 is connected to the bottom of the bottom plate 2, and a track 5 is fixedly connected to a residual iron groove 4. The track 5 is arranged in the middle of the residual iron groove 4 and is parallel to the residual iron groove 4. One end of the track is fixedly connected to a furnace shell below the residual iron mouth of the furnace. The opening machine 1 can move in the track 5 through the roller 3. The track is made of channel steel, and the width of the notch is 50 mm larger than the width between the rollers on both sides of the opening machine.

[0039] A handrail 6 is arranged above the opening machine 1. The top of the handrail 6 exceeds the upper edge of the residual iron groove 4 by 780 mm. The handrail 6 includes a transverse tube 61, the bottom of which is connected to the bottom plate 2 through a bracket 62, the top of the bracket 62 is fixedly connected to the transverse tube 61, the bottom of the bracket 62 is fixedly connected to the bottom plate 2, and both sides of the bottom of the bracket 61 are respectively connected to stoppers 64, which are arranged on the outside of the track 5. A gripping rod 63 is inserted into the transverse tube 61, and the gripping rod 63 can slide along the inner wall of the transverse tube 61. The transverse tube 61 is 280 mm wider than the residual iron groove 4. The length of the gripping rod 62 is 920 mm.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and basic spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for opening the residual iron mouth of the furnace during blast furnace overhaul, characterized in that: It includes an opening machine and a base plate. The opening machine is fixedly connected to the top of the base plate, rollers are connected to the bottom of the base plate, and tracks are fixedly connected in the residual iron groove. The tracks are arranged in the middle of the residual iron groove and are parallel to the residual iron groove. The opening machine can move in the tracks through the rollers, and a handrail is arranged above the opening machine.

2. The device for opening the residual iron hole of the hearth during blast furnace overhaul according to claim 1 is characterized in that: The handrail comprises a transverse tube, the bottom of which is connected to the bottom plate through a bracket, a gripping rod is sleeved in the transverse tube, and the gripping rod can slide along the inner wall of the transverse tube.

3. The device for opening the residual iron hole of the hearth during blast furnace overhaul according to claim 2 is characterized in that: The top of the bracket is fixedly connected to the transverse pipe, the bottom of the bracket is fixedly connected to the bottom plate, and both sides of the bottom of the bracket are respectively connected to stoppers, which are arranged on the outside of the track.

4. The device for opening the residual iron hole of the hearth during blast furnace overhaul according to claim 2 is characterized in that: The horizontal pipe is 200-300mm wider than the residual iron groove.

5. The device for opening the residual iron hole of the hearth during blast furnace overhaul according to claim 2 is characterized in that: The length of the gripping rod is 800-1000 mm.

6. The device for opening the residual iron hole of the hearth during blast furnace overhaul according to claim 1 is characterized in that: The top of the handrail exceeds the upper edge of the residual iron groove by 700-900 mm.

7. The device for opening the residual iron hole of the hearth during blast furnace overhaul according to claim 1 is characterized in that: One end of the track is fixedly connected to the furnace shell below the residual iron opening of the furnace cylinder.

8. The device for opening the residual iron hole of the hearth during blast furnace overhaul according to claim 1 is characterized in that: The track is a groove structure, and the width of the groove is 40-50mm larger than the width between the rollers on both sides of the opening machine.

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