Converter blanking pipe and quick release device thereof

Abstract

The utility model provides a converter blanking pipe and a quick release device thereof. The quick release device comprises a first loose joint flange, a second loose joint flange, a first sleeve, a second sleeve and a quick release bolt, the end of the first sleeve and the end of the second sleeve are fixedly connected with the first loose joint flange and the second loose joint flange respectively, and the other end of the first sleeve and the other end of the second sleeve are used for being connected with an upper discharging pipe and a lower discharging pipe. The edges of the first loose-joint flange and the second loose-joint flange are opened towards the inner sides to form U-shaped grooves, the quick-release bolt penetrates through the U-shaped grooves of the first loose-joint flange and the second loose-joint flange to detachably connect the first loose-joint flange and the second loose-joint flange, and the inner diameter of the first sleeve is larger than that of the second sleeve. According to the converter blanking pipe, the quick dismounting device is mounted on the blanking gathering pipe, so that when refractory bricks are built or a dust removal flue needs to be partially replaced after the converter service expires, the dismounting amount of the disconnected blanking pipe can be reduced in the flue transverse moving process, and the situation that the transverse moving efficiency of the flue is affected due to the fact that the blanking pipe cannot be disconnected in time is shortened.

Description

TECHNICAL FIELD

[0001] The utility model relates to a steelmaking equipment technical field especially relates to a converter discharging pipe and quick release device thereof. BACKGROUND

[0002] Converter flue horizontal moving technology is widely applied to steel enterprises, and can be used for moving the moving section of the flue when the new refractory brick of the converter is built or the flue is overhauled and replaced during the service life of the converter, and is used for steelmaking.

[0003] With the green and environmental protection development of the steelmaking process, the furnace type tends to be large-scale, and the furnace repairing and building gradually adopt the top repairing type, thereby new process requirements are put forward for the vaporization cooling flue, and the movable section needs to be arranged.

[0004] The converter flux discharging system discharges various raw and auxiliary materials for steelmaking in the high-level frame silo of the converter through vibration, weighing and collection, and then introduces the materials into the discharging ports on both sides of the flue through two discharging main pipes, and then the materials are added into the converter to participate in the smelting production process.

[0005] Because the discharging main pipes are on both sides of the flue, the inclination and running of the pipes are basically the same as the flue, and the pipes are connected with different equipment (the upper part is connected with the collection hopper, and the lower part is connected with the flue) respectively. UTILITY MODEL CONTENTS

[0006] The main purpose of the utility model is to provide a converter discharging pipe and quick release device thereof, and aims at realizing the quick release and connection of the collection pipe.

[0007] To achieve the above purpose, the utility model provides a quick release device of a converter discharging pipe, which comprises a first loose flange, a second loose flange, a first sleeve, a second sleeve and a quick release bolt, wherein,

[0008] The first sleeve and the second sleeve are fixedly connected with the first flange and the second flange respectively, and the other ends of the first sleeve and the second sleeve are used for being connected with the upper blanking pipe and the lower blanking pipe, the edges of the first flange and the second flange are both opened to the inner side to form a U-shaped groove, and the quick-release bolt is arranged in the U-shaped groove of the first flange and the second flange to detachably connect the first flange and the second flange, and the inner diameter of the first sleeve is larger than the inner diameter of the second sleeve.

[0009] Preferably, the first flange and the second flange are uniformly arranged with a plurality of U-shaped grooves in the circumferential direction.

[0010] Preferably, the length of the first sleeve is 150mm-350mm.

[0011] Preferably, the first sleeve and the second sleeve are welded with the first flange and the second flange respectively.

[0012] Preferably, the first sleeve and the second sleeve are seamless steel pipes or coiled pipes.

[0013] The utility model discloses still propose a converter blanking pipe, including above quick release device, still include upper blanking pipe and lower blanking pipe, the first sleeve of quick release device is covered in the outside of upper blanking pipe, and the second sleeve of quick release device is welded with lower blanking pipe, and the sealing element is installed between the first sleeve and upper blanking pipe.

[0014] Preferably, the sealing element includes a sealing ring located between the first sleeve and the upper blanking pipe, and an annular groove is formed in the interior of the first sleeve for accommodating the sealing ring, and the annular groove and the sealing ring are in interference fit.

[0015] Preferably, the sealing element further includes a rubber sealing sleeve covering the first sleeve towards the one side end of the upper blanking pipe, and the inner side surface of the rubber sealing sleeve abuts against the outer side wall of the upper blanking pipe.

[0016] Preferably, the sealing ring is a rubber O-shaped sealing ring or an asbestos wire.

[0017] Preferably, the gap between the inner side wall of the first sleeve and the outer side wall of the upper blanking pipe is 5mm-10mm.

[0018] The converter blanking pipe has the following beneficial effects:

[0019] 1. By installing the quick-release device on the blanking collecting pipe, when the refractory bricks or the dust removal flue need to be partially replaced after the service life of the converter expires, the dismounting amount of the blanking pipe can be reduced during the flue transverse movement, and the efficiency of the flue transverse movement affected by the blanking pipe not being disconnected in time can be improved. The flue transverse movement can be advanced by 2-3 hours, and the flue recovery time can be shortened by 2-3 hours.

[0020] 2、the quick release device is installed on the converter downcomer pipe, the existing converter downcomer pipe structure is slightly changed, therefore, the converter downcomer pipe has the advantages of low modification cost;

[0021] 3、the converter downcomer pipe has the advantages of simple structure and easy realization. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 it is the structural schematic diagram of the converter downcomer pipe of the utility model;

[0023] Figure 2 it is the three-dimensional structural schematic diagram of the first loose flange and the second loose flange of the converter downcomer pipe of the utility model are connected;

[0024] Figure 3 it is the front view structural schematic diagram of the first loose flange and the second loose flange of the converter downcomer pipe of the utility model are connected;

[0025] Figure 4 it is the side view structural schematic diagram of the first loose flange and the second loose flange of the converter downcomer pipe of the utility model are connected.

[0026] In the drawing, 1 is the first loose flange, 2 is the second loose flange, 3 is the first sleeve, 4 is the second sleeve, 5 is the quick release bolt, 6 is the sealing ring, 7 is the upper downcomer pipe.

[0027] The utility model discloses the realization, functional characteristics and advantages will be further explained with reference to the embodiment, the accompanying drawing. DETAILED DESCRIPTION

[0028] It should be understood that the specific embodiments described herein are merely intended to explain the utility model, and are not intended to limit the utility model.

[0029] It should be noted that in the description of the utility model, the terms "transverse", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only intended to facilitate the description of the utility model and simplify the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only for descriptive purposes, and cannot be understood as indicating or implying relative importance.

[0030] The utility model proposes a converter downcomer pipe.

[0031] REFERENCE Figures 1 to 4A converter feeding pipe includes a quick-release device, an upper feeding pipe 7, and a lower feeding pipe. A first sleeve 3 of the quick-release device is fitted over the upper feeding pipe 7, and a second sleeve 4 of the quick-release device is welded to the lower feeding pipe. A seal is installed between the first sleeve 3 and the upper feeding pipe 7 to prevent dust leakage during the feeding process. The quick-release device for the converter feeding pipe includes a first union flange 1, a second union flange 2, a first sleeve 3, a second sleeve 4, and a quick-release bolt 5. The ends of the first sleeve 3 and the second sleeve 4 are fixedly connected to the first union flange 1 and the second union flange 2, respectively. The other ends of the first sleeve 3 and the second sleeve 4 are used to connect to the upper feeding pipe 7 and the lower feeding pipe. The edges of the first union flange 1 and the second union flange 2 open inwards to form U-shaped grooves. The quick-release bolt 5 passes through the U-shaped grooves of the first union flange 1 and the second union flange 2 to detachably connect them. The inner diameter of the first sleeve 3 is larger than the inner diameter of the second sleeve 4.

[0032] The upper discharge pipe 7 is used to connect to the collection hopper, and the lower discharge pipe is used to connect to the flue. A U-shaped groove is used, allowing for quick installation of the quick-release bolts 5 from the opening of the U-shaped groove, compared to the mounting holes in existing technology. The quick-release bolts 5 can be tightened and loosened accordingly, allowing for quick locking and unlocking of the two flanges. After the discharge pipes on both sides are disconnected at the quick-release device, the lower discharge pipe at one end of the transverse trolley can move with the trolley, while the upper discharge pipe 7 at one end of the collection hopper remains stationary.

[0033] Furthermore, referring to Figure 3 The first union flange 1 and the second union flange 2 have multiple U-shaped grooves evenly arranged in the circumferential direction (in this embodiment, six U-shaped grooves are used as an example for specific explanation). In this embodiment, the length of the first sleeve 3 is 150mm~350mm. This length setting is to meet the requirement of a 100mm-300mm clearance between the upper feed pipe 7 and the lower feed pipe.

[0034] In this embodiment, the first sleeve 3 and the second sleeve 4 are welded to the first union flange 1 and the second union flange 2, respectively. The welded connection has the advantages of structural stability, simple installation, and good sealing performance. The first sleeve 3 and the second sleeve 4 are seamless steel pipes or rolled pipes.

[0035] In this embodiment, refer to Figure 1 The sealing element includes a sealing ring 6 located between the first sleeve 3 and the upper feed pipe 7. The first sleeve 3 has an annular groove inside to accommodate the sealing ring 6, and the annular groove and the sealing ring are interference-fitted. The sealing ring 6 is a rubber O-ring or asbestos thread. Because the sealing ring 6 is installed in the annular groove, it will not shift when the first sleeve 3 moves relative to the upper feed pipe 7.

[0036] Further, the sealing member further comprises a rubber sealing sleeve (not shown in the figure) sleeved on one side end of the first sleeve 3 towards the upper downcomer 7, the inner side of the rubber sealing sleeve abuts against the outer side wall of the upper downcomer 7, the rubber sealing sleeve is provided with a slot, and the end of the first sleeve 3 is accommodated in the slot. The rubber sealing sleeve can further improve the sealing performance of the quick release device of the downcomer of the converter.

[0037] In the embodiment, referring to Figure 1 , the inner diameter of the first sleeve 3 is slightly larger than the outer diameter of the downcomer, so that the upper downcomer 7 can freely move in the first sleeve. Specifically, the gap between the inner side wall of the first sleeve 3 and the outer side wall of the upper downcomer 7 is 5mm-10mm. The gap is sealed by the sealing ring 6, which prevents dust from overflowing during normal production.

[0038] The working process of the downcomer of the converter is as follows: during normal production of the converter, the two flanges are in a locked state, the upper downcomer 7 is inserted into the first sleeve 3 to a depth of 100mm-300mm, and the gap between the downcomer and the sleeve is sealed by the sealing ring 6. After the raw materials for smelting are collected and released, the raw material flow enters the first sleeve 3 through the upper downcomer 7, then passes through the first flange 1 and the second flange 2, and finally enters the lower downcomer and smoothly enters the converter. When the flue needs to be transversely moved, the locking bolts of the first flange 1 and the second flange 2 are opened, and the two flanges can be smoothly separated, wherein the first flange 1 moves towards the upper downcomer 7 and is fixed on the upper downcomer 7, at this time, the clearance between the two flanges can reach 100-300mm, so as to realize the connection and disconnection of the upper and lower downcomers, and provide sufficient space for the transverse movement of the flue transverse movement vehicle.

[0039] The downcomer of the converter provided in the embodiment has the following beneficial effects:

[0040] 1. By installing the quick release device on the downcomer collecting pipe, when the refractory bricks are built or the dust removal flue needs to be partially replaced after the service life of the converter expires, the disassembly amount of the downcomer during the transverse movement of the flue can be reduced, and the efficiency of the flue transverse movement affected by the failure of the downcomer to be disconnected in time can be improved. By using the quick release device, the transverse movement of the converter flue can be advanced by 2-3 hours, and the recovery time of the flue is shortened by 2-3 hours.

[0041] 2. The downcomer of the converter can be installed with the quick release device, and the existing downcomer structure of the converter is slightly changed, so that the converter has the advantage of low modification cost.

[0042] 3. The downcomer of the converter has the advantages of simple structure and easy implementation.

[0043] The utility model further provides a quick release device of downcomer of converter.

[0044] In the preferred embodiment, referring to Figures 2 to 4 A quick release device of a converter tapping pipe, comprising a first flange 1, a second flange 2, a first sleeve 3, a second sleeve 4 and a quick release bolt 5, wherein,

[0045] The first sleeve 3 and the second sleeve 4 are fixedly connected with the first flange 1 and the second flange 2 at the ends, respectively, and the other ends of the first sleeve 3 and the second sleeve 4 are used for connecting with the upper tapping pipe 7 and the lower tapping pipe, respectively; the edges of the first flange 1 and the second flange 2 are both opened to form U-shaped grooves in the inner sides, and the quick release bolt 5 is arranged in the U-shaped grooves of the first flange 1 and the second flange 2 to detachably connect the first flange 1 and the second flange 2; and the inner diameter of the first sleeve 3 is larger than that of the second sleeve 4.

[0046] Further, the first flange 1 and the second flange 2 are uniformly arranged with a plurality of U-shaped grooves in the circumferential direction. In the embodiment, the length of the first sleeve 3 is 150mm-350mm. The first sleeve 3 and the second sleeve 4 are welded with the first flange 1 and the second flange 2, respectively. The first sleeve 3 and the second sleeve 4 are seamless steel pipes or coiled pipes.

[0047] The above is only the preferred embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation, direct or indirect application in other related technical fields based on the content of the utility model specification and drawings are also included in the patent protection range of the utility model.

Claims

1. A quick release device for a converter spout, characterized by, The quick release device comprises a first flange, a second flange, a first sleeve, a second sleeve and a quick release bolt, wherein, The first sleeve and the second sleeve are fixedly connected with the first flange and the second flange at the end portions thereof, and the other end portions of the first sleeve and the second sleeve are used for connecting with the upper and lower down pipes; the edges of the first flange and the second flange are both opened to the inner side to form a U-shaped groove; the quick release bolt is arranged in the U-shaped groove of the first flange and the second flange to detachably connect the first flange and the second flange; and the inner diameter of the first sleeve is larger than that of the second sleeve.

2. The quick release device for the converter delivery pipe according to claim 1, characterized in that, The first flange and the second flange are uniformly provided with a plurality of U-shaped grooves in the circumferential direction.

3. The quick release device for a converter spout as claimed in claim 1, wherein The length of the first sleeve is 150mm-350mm.

4. The quick release device for a converter spout as claimed in claim 1, wherein The first sleeve and the second sleeve are welded with the first flange and the second flange, respectively.

5. The quick release device for the converter tapping tube according to any one of claims 1 to 4, characterized in that, The first sleeve and the second sleeve are seamless steel pipes or coiled pipes.

6. A converter tapping tube, characterized by The quick release device further comprises an upper down pipe and a lower down pipe, the first sleeve of the quick release device is sleeved outside the upper down pipe, the second sleeve of the quick release device is welded with the lower down pipe, and a sealing element is arranged between the first sleeve and the upper down pipe.

7. The vessel tap hole tube of claim 6 wherein, The sealing element comprises a sealing ring arranged between the first sleeve and the upper down pipe, an annular groove is formed in the inner portion of the first sleeve for accommodating the sealing ring, and the annular groove and the sealing ring are in interference fit.

8. The vessel tap hole tube of claim 7 wherein, The sealing element further comprises a rubber sealing sleeve sleeved on the end portion of the first sleeve towards the upper down pipe, and the inner side of the rubber sealing sleeve abuts against the outer side wall of the upper down pipe.

9. The vessel tap hole tube of claim 7 wherein, The sealing ring is a rubber O-shaped sealing ring or an asbestos wire.

10. The vessel tap hole tube of claim 6 wherein, The gap between the inner side wall of the first sleeve and the outer side wall of the upper down pipe is 5mm-10mm.

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