CN218765870U - Leakage detection device for middle and small sleeves of blast furnace tuyere - Google Patents

Leakage detection device for middle and small sleeves of blast furnace tuyere Download PDF

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Publication number
CN218765870U
CN218765870U CN202222424336.3U CN202222424336U CN218765870U CN 218765870 U CN218765870 U CN 218765870U CN 202222424336 U CN202222424336 U CN 202222424336U CN 218765870 U CN218765870 U CN 218765870U
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sleeve water
water inlet
small
sleeve
water outlet
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柯雪利
黄玉鸿
曾飞骏
胡友明
周海运
曾交民
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Guangxi Shenglong Iron and Steel Materials Research Institute
Guangxi Shenglong Metallurgical Co Ltd
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Guangxi Shenglong Iron and Steel Materials Research Institute
Guangxi Shenglong Metallurgical Co Ltd
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Abstract

The utility model discloses a blast furnace tuyere medium and small sleeve leakage detection device, which comprises a medium sleeve water inlet branch pipe, a medium sleeve water outlet branch pipe, a small sleeve water inlet branch pipe, a small sleeve water outlet branch pipe, a medium sleeve water inlet main pipe, a medium sleeve water outlet main pipe, a small sleeve water inlet main pipe and a small sleeve water outlet main pipe; the cooling water pipeline of the middle sleeve is respectively connected with a middle sleeve water inlet branch pipe and a middle sleeve water outlet branch pipe; all the middle sleeve water inlet branch pipes are connected with a group of middle sleeve water inlet main pipes; all the middle sleeve water outlet branch pipes are connected with a group of middle sleeve water outlet main pipes; the cooling water pipeline of the small sleeve is connected with a group of small sleeve water inlet branch pipes and small sleeve water outlet branch pipes; all the small sleeve water inlet branch pipes are connected with a group of small sleeve water inlet main pipes; all the small sleeve water outlet branch pipes are connected with a group of small sleeve water outlet main pipes; pipe joint sleeve components are arranged between the pipelines; pressure gauges are arranged on all the middle sleeve water outlet branch pipes and the small sleeve water inlet branch pipes. The device of the utility model is simple in operation convenient, can carry out the leak hunting to the cooling water pipeline of cover and little cover in the blast furnace tuyere to can accurately find out the pipeline that appears leaking.

Description

Leakage detection device for middle and small sleeves of blast furnace tuyere
Technical Field
The utility model belongs to the technical field of metallurgical equipment, concretely relates to leakage detection device is worn to cover in blast furnace wind gap.
Background
In a blast furnace for metal smelting, a tuyere is an important device which connects the inside of the blast furnace with a blast device and plays a role of blowing air into the furnace. The tuyere middle sleeve and the small sleeve are directly inserted into the blast furnace and need to bear the high temperature in the furnace, and in order to ensure that the device is not burnt out, cooling water circulation cavities are required to be arranged inside the middle sleeve and the small sleeve at the tuyere so as to take away heat in time. In the blast furnace, the middle sleeve and the small sleeve are damaged due to the molten iron and molten iron melting loss, the pulverized coal jet flow and the furnace burden abrasion, the temperature difference and the pressure difference, so that the cooling water circulation cavity is broken and leaks water, and the operation safety of the blast furnace is seriously influenced. Therefore, the leakage detection of the middle sleeve and the small sleeve of the blast furnace tuyere is listed as an important maintenance project.
At present, leakage detection is often performed on a middle sleeve and a small sleeve of a blast furnace tuyere through a pressure testing method, namely, water is introduced into the middle sleeve or the small sleeve through a pressurizing pump, then a valve is closed for a period of time, and after the pressure is stable, whether the water pressure changes is observed through a pressure gauge, and if the water pressure is reduced, leakage exists. In the process of connecting pressure test pipe fittings, the connecting flange of the pipeline needs to be fixedly connected in a mode of rotating bolts, the middle and small sleeves of a plurality of groups of air ports of a blast furnace are subjected to leakage detection, a lot of manpower is needed for screwing the bolts, and the efficiency is greatly reduced.
Many medium and small set leak hunting tools can only leak hunting to single a set of medium and small set at every turn, perhaps some devices can leak hunting simultaneously to multiunit medium and small set, but the inspection can only judge that all medium and small sets have and reveal, can not specifically find out which section medium and small set appear revealing. If the application number is CN201720982644.4, the Chinese utility model patent of the title "in a simple and reliable blast furnace wind gap, little cover leak hunting device", this patent device includes tuyere cover, wind gap cover in, the connecting pipe, the manometer, the valve, utilize the device can become same pipeline with all well, little cover connection, water injection in to this pipeline again, observe the change condition of main pipeline manometer registration, if the pressure value descends, explain to appear revealing, the segmentation is checked again at last, find out the wind gap that the cooling water revealed. Although the device can simultaneously leak the leakage of the small sleeve and the middle sleeve of all the air ports, each section needs to be independently checked after the leakage is found, the leakage point can be found out, and the device wastes time and labor.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an it is not enough to exist among the prior art, has provided in the blast furnace tuyere, little cover leak hunting device, the utility model discloses device easy operation is convenient, can leak hunting to the cooling water pipeline of cover and little cover in the blast furnace tuyere to can accurately find out the pipeline that appears leaking.
In order to realize the purpose, the utility model adopts the following technical scheme:
a leakage detection device for a middle sleeve and a small sleeve of a blast furnace tuyere comprises a middle sleeve water inlet branch pipe, a middle sleeve water outlet branch pipe, a small sleeve water inlet branch pipe, a small sleeve water outlet branch pipe, a middle sleeve water inlet main pipe, a middle sleeve water outlet main pipe, a small sleeve water inlet main pipe and a small sleeve water outlet main pipe; in a general smelting blast furnace, a plurality of tuyeres are arranged, and each group of tuyeres is provided with a corresponding middle sleeve and a corresponding small sleeve; two ends of the cooling water pipeline of the middle sleeve are respectively connected with a group of middle sleeve water inlet branch pipes and a middle sleeve water outlet branch pipe; all the middle sleeve water inlet branch pipes are connected with a group of middle sleeve water inlet main pipes; all the middle sleeve water outlet branch pipes are connected with a group of middle sleeve water outlet main pipes; two ends of the cooling water pipeline of the small sleeve are respectively connected with a group of small sleeve water inlet branch pipes and a group of small sleeve water outlet branch pipes; all the small sleeve water inlet branch pipes are connected with a group of small sleeve water inlet main pipes; all the small sleeve water outlet branch pipes are connected with a group of small sleeve water outlet main pipes; pipe sleeve assemblies are arranged at corresponding connecting parts among the middle sleeve water inlet branch pipe, the middle sleeve water outlet branch pipe, the small sleeve water inlet branch pipe and the small sleeve water outlet branch pipe, the middle sleeve water inlet main pipe, the middle sleeve water outlet main pipe, the small sleeve water inlet main pipe and the small sleeve water outlet main pipe; pressure gauges are arranged on the middle sleeve water outlet branch pipe and the small sleeve water inlet branch pipe.
Pressure test water is introduced into the middle sleeve water inlet branch pipe from the middle sleeve water inlet main pipe, and can be discharged into the middle sleeve water outlet main pipe from the middle sleeve water outlet branch pipe and finally discharged; the water for pressure test is introduced into the small sleeve water inlet branch pipe from the small sleeve water inlet main pipe, and can be discharged into the small sleeve water outlet main pipe from the small sleeve water outlet branch pipe and finally discharged; the middle sleeve water inlet branch pipe and the small sleeve water inlet branch pipe can be respectively movably connected with the middle sleeve and the small sleeve in a threaded connection mode, and a water leakage-proof gasket is added; the pipe sleeve assembly is used for realizing the quick connection of corresponding pipeline parts; the pressure gauge is used for observing the pressure in the pipeline.
As a further technical improvement, the pipe sleeve assembly comprises a main pipe sleeve seat and a branch pipe sleeve seat; the middle sleeve water inlet main pipe, the middle sleeve water outlet main pipe, the small sleeve water inlet main pipe and the small sleeve water outlet main pipe are respectively provided with a branch pipe; each group of branch pipes is provided with a group of main pipe sleeve seats; each group of the end parts of the middle sleeve water inlet branch pipe, the middle sleeve water outlet branch pipe, the small sleeve water inlet branch pipe and the small sleeve water outlet branch pipe are respectively provided with a group of branch pipe sleeve seats; the main pipe sleeve seat is provided with a connecting groove; the connecting groove is matched and sleeved with the branch pipe sleeve seat; and a fixing device is also arranged between the main pipe sleeve seat and the branch pipe sleeve seat. The middle parts of the main pipe sleeve seat and the branch pipe sleeve seat are communicated; the branch pipe sleeve seats are sleeved into the connecting grooves of the main pipe sleeve seats and then are fixed through the fixing devices, and accordingly connection of corresponding pipelines is achieved.
As a further technical improvement, the fixing device comprises a door-shaped fixing frame and a spring fixing block; the two ends of the bottom of the door-shaped fixing frame are hinged with the side surface of the main pipe sleeve seat, and the top of the door-shaped fixing frame is provided with a rotatable fixing strip; the spring fixing block comprises a pressing block and a bottom sleeve; a spring is arranged in the bottom sleeve; the pressing block is sleeved in the bottom sleeve and props against the spring; the pressing block is provided with a pressing groove; the pressure groove is matched with the fixing strip. The door-shaped fixing frame is turned up, and then the fixing strip is buckled into a pressing groove of a spring fixing block pressing block; in the buckling process, the spring is compressed, and after the hand is loosened, the spring jacks up the pressing block, so that the main pipe sleeve seat and the branch pipe sleeve seat are tightly connected by the door-shaped fixing frame, and the two corresponding groups of pipelines are hermetically connected; at least three groups of fixing devices are arranged between each group of main pipe sleeve seats and the corresponding branch pipe sleeve seats; the elasticity of the spring is large enough, so that the main pipe sleeve seat and the branch pipe sleeve seat can be tightly pressed.
As a further technical improvement, a sealing washer is arranged in the connecting groove; the edge of one side of the pressure groove facing outwards is lower than the edge of one side facing inwards. The pressing groove is designed to facilitate pressing of the fixing strip.
As a further technical improvement, valves I are arranged on the middle sleeve water inlet branch pipe, the middle sleeve water outlet branch pipe, the small sleeve water inlet branch pipe and the small sleeve water outlet branch pipe; and valves II are arranged on the middle sleeve water inlet main pipe, the middle sleeve water outlet main pipe, the small sleeve water inlet main pipe and the small sleeve water outlet main pipe. And the valve I and the valve II close corresponding pipelines in scientific research.
As a further technical improvement, the middle sleeve water inlet main pipe and the small sleeve water inlet main pipe are both connected with a water inlet source; the middle sleeve water outlet main pipe and the small sleeve water outlet main pipe are both communicated with a drainage system. The water inlet source can be a tap water pipeline connected with a pressurizing pump and the like; the drainage system may be a gutter or reservoir or the like.
As a further technical improvement, the middle sleeve water inlet branch pipe, the middle sleeve water outlet branch pipe, the small sleeve water inlet branch pipe and the small sleeve water outlet branch pipe are detachably and movably connected with the corresponding middle sleeve and the corresponding small sleeve.
The use method of the blast furnace tuyere medium and small set of leakage detection device comprises the following steps:
when in use, the corresponding middle sleeve water inlet branch pipe and the middle sleeve water outlet branch pipe are connected with the cooling water pipeline on the middle sleeve through the pipe sleeve assembly and are connected into the corresponding middle sleeve water inlet main pipe and the middle sleeve water outlet main pipe; connecting the corresponding small sleeve water inlet branch pipe and the small sleeve water outlet branch pipe with the cooling water pipeline on the small sleeve, and connecting the small sleeve water inlet branch pipe and the small sleeve water outlet branch pipe into the corresponding small sleeve water inlet main pipe and the small sleeve water outlet main pipe; closing all the middle-sleeve water outlet branch pipes and the small-sleeve water outlet branch pipes, injecting water into the middle-sleeve cooling water pipelines and the small-sleeve cooling water pipelines, and closing all the middle-sleeve water inlet branch pipes and the small-sleeve water inlet branch pipes after a certain pressure is reached; the pressure numerical value on the current pressure gauge is recorded, the water inlet and outlet of the pipeline is kept closed for a proper time, the pressure numerical value of each pressure gauge is observed, if the pressure gauge numerical value is unchanged, the section of cooling water pipeline is not leaked, if the pressure gauge numerical value is reduced, the section of cooling water pipeline is leaked, and then the leaked cooling water pipeline is overhauled.
The utility model discloses technical scheme has following beneficial effect:
1. the utility model discloses a well cover inlet branch pipe, well cover outlet branch pipe, little cover inlet branch pipe and little cover outlet branch pipe carry out independent leak hunting to all well covers in the blast furnace wind gap and the cooling water pipeline of little cover, can be at the direct discovery section of leaking hunting in-process, the follow-up maintenance of being convenient for.
2. The utility model discloses a pipe sleeve subassembly can be fast effectual connects corresponding pipe fitting, and convenience simple to use has improved work efficiency.
3. The utility model discloses all be equipped with the valve on each group's pipeline, the break-make of each pipeline of the control of being convenient for carries out accurate leak hunting.
Drawings
Fig. 1 is a schematic view of the overall structure of the device.
FIG. 2 is a schematic view of the main pipe socket and the branch pipe socket when they are not coupled.
FIG. 3 is a schematic view of the main pipe socket coupled with the branch pipe socket.
Reference numerals: 1-middle sleeve, 2-small sleeve, 3-middle sleeve water inlet branch pipe, 4-middle sleeve water outlet branch pipe, 5-small sleeve water inlet branch pipe, 6-small sleeve water outlet branch pipe, 7-middle sleeve water inlet main pipe, 8-middle sleeve water outlet main pipe, 9-small sleeve water inlet main pipe, 10-small sleeve water outlet main pipe, 11-pipe sleeve component, 12-valve I, 13-valve II, 14-pressure gauge, 15-main pipe sleeve seat, 16-branch pipe sleeve seat, 17-connecting groove, 18-sealing washer, 19-door type fixing frame, 20-fixing strip, 21-pressing block, 22-bottom sleeve, 23-spring, 24-branch pipe and 25-pressing groove.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Example 1:
as shown in figures 1-3, a leakage detection device for a middle sleeve and a small sleeve of a blast furnace tuyere comprises a middle sleeve water inlet branch pipe 3, a middle sleeve water outlet branch pipe 4, a small sleeve water inlet branch pipe 5, a small sleeve water outlet branch pipe 6, a middle sleeve water inlet main pipe 7, a middle sleeve water outlet main pipe 8, a small sleeve water inlet main pipe 9 and a small sleeve water outlet main pipe 10; in a general smelting blast furnace, a plurality of tuyeres are arranged, and each tuyere is provided with a corresponding middle sleeve 1 and a corresponding small sleeve 2; two ends of a cooling water pipeline of the middle sleeve 1 are respectively connected with a group of middle sleeve water inlet branch pipes 3 and a middle sleeve water outlet branch pipe 4; all the middle sleeve water inlet branch pipes 3 are connected with a group of middle sleeve water inlet main pipes 7; all the middle sleeve water outlet branch pipes 4 are connected with a group of middle sleeve water outlet main pipes 8; two ends of the cooling water pipeline of the small sleeve 2 are respectively connected with a group of small sleeve water inlet branch pipes 5 and small sleeve water outlet branch pipes 6; all the small sleeve water inlet branch pipes 5 are connected with a group of small sleeve water inlet main pipes 9; all the small-sleeve water outlet branch pipes 6 are connected with a group of small-sleeve water outlet main pipes 10; pipe sleeve assemblies 11 are arranged at corresponding connecting parts among the middle sleeve water inlet branch pipe 3, the middle sleeve water outlet branch pipe 4, the small sleeve water inlet branch pipe 5 and the small sleeve water outlet branch pipe 6, the middle sleeve water inlet main pipe 7, the middle sleeve water outlet main pipe 8, the small sleeve water inlet main pipe 9 and the small sleeve water outlet main pipe 10; and pressure gauges 14 are arranged on the middle sleeve water outlet branch pipe 4 and the small sleeve water inlet branch pipe 5.
The pipe joint sleeve assembly 11 comprises a main pipe sleeve seat 15 and a branch pipe sleeve seat 16; branch pipes 24 are distributed on the middle sleeve water inlet main pipe 7, the middle sleeve water outlet main pipe 8, the small sleeve water inlet main pipe 9 and the small sleeve water outlet main pipe 10; each group of branch pipes 24 is provided with a group of main pipe sleeve seats 15; each group of the middle sleeve water inlet branch pipe 3, the middle sleeve water outlet branch pipe 4, the small sleeve water inlet branch pipe 5 and the small sleeve water outlet branch pipe 6 is provided with a group of branch pipe sleeve seats 16 at the end part; the main pipe sleeve seat 15 is provided with a connecting groove 17; the connecting groove 17 is matched and sleeved with the branch pipe sleeve seat 16; and a fixing device is also arranged between the main pipe sleeve seat 15 and the branch pipe sleeve seat 16.
The fixing device comprises a door-shaped fixing frame 19 and a spring fixing block; the two ends of the bottom of the door-shaped fixing frame 19 are hinged with the side surface of the main pipe sleeve seat 15, and the top of the door-shaped fixing frame is provided with a rotatable fixing strip 20; the spring fixing block comprises a pressing block 21 and a bottom sleeve 22; a spring 23 is arranged in the bottom sleeve 22; the pressing block 21 is sleeved in the bottom sleeve 22 and props against the spring 23; the pressing block 21 is provided with a pressing groove 25; the indent 25 mates with the fixation bar 20.
A sealing washer 18 is arranged in the connecting groove 17; the outward side edge of the indent 25 is lower than the inward side edge.
Valves I12 are arranged on the middle sleeve water inlet branch pipe 3, the middle sleeve water outlet branch pipe 4, the small sleeve water inlet branch pipe 5 and the small sleeve water outlet branch pipe 6; and valves II 13 are arranged on the middle sleeve water inlet main pipe 7, the middle sleeve water outlet main pipe 8, the small sleeve water inlet main pipe 9 and the small sleeve water outlet main pipe 10.
The utility model discloses a use method as follows:
when in use, the corresponding middle sleeve water inlet branch pipe 3 and the middle sleeve water outlet branch pipe 4 are connected with the cooling water pipeline on the middle sleeve 1 through the pipe sleeve component 11 and are connected into the corresponding middle sleeve water inlet main pipe 7 and the middle sleeve water outlet main pipe 8; connecting the corresponding small sleeve water inlet branch pipe 5 and the small sleeve water outlet branch pipe 6 with the cooling water pipeline on the small sleeve 2, and connecting the small sleeve water inlet branch pipe and the small sleeve water outlet branch pipe into the corresponding small sleeve water inlet main pipe 9 and the small sleeve water outlet main pipe 10; closing all the middle sleeve water outlet branch pipes 4 and the small sleeve water outlet branch pipes 5, injecting water into the cooling water pipelines of the middle sleeve 1 and the small sleeve 2, and closing all the middle sleeve water inlet branch pipes 3 and the small sleeve water inlet branch pipes 5 after a certain water pressure is reached; the pressure value on the current pressure gauge 14 is recorded, the water inlet and outlet of the pipeline is kept closed for a proper time, the pressure value of each pressure gauge 14 is observed, if the pressure value is unchanged, the section of cooling water pipeline is not leaked, if the pressure value is reduced, the section of cooling water pipeline is leaked, and then the leaked cooling water pipeline is overhauled.
Example 2:
this example differs from example 1 in that: the middle sleeve water inlet main pipe 7 and the small sleeve water inlet main pipe 9 are both connected with a water inlet source; the middle sleeve water outlet main pipe 8 and the small sleeve water outlet main pipe 10 are both communicated with a drainage system.
The method of use of this example is the same as example 1.
Example 3:
this example differs from example 2 in that: the middle sleeve water inlet branch pipe 3, the middle sleeve water outlet branch pipe 4, the small sleeve water inlet branch pipe 5 and the small sleeve water outlet branch pipe 6 are detachably and movably connected with the corresponding middle sleeve 1 and the corresponding small sleeve 2.
The method of use of this example is the same as example 1.
Example 4:
this example differs from example 3 in that: the middle sleeve water inlet main pipe 7 and the small sleeve water inlet main pipe 9 are both connected with a water inlet source; the middle sleeve water outlet main pipe 8 and the small sleeve water outlet main pipe 10 are both communicated with a drainage system. The middle sleeve water inlet branch pipe 3, the middle sleeve water outlet branch pipe 4, the small sleeve water inlet branch pipe 5 and the small sleeve water outlet branch pipe 6 are detachably and movably connected with the corresponding middle sleeve 1 and the corresponding small sleeve 2.
The method of use of this example is the same as example 1.
The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the protection scope of the present invention is defined by the claims. Various modifications and equivalents of the invention may be made by those skilled in the art within the spirit and scope of the invention, and such modifications and equivalents should also be considered as falling within the scope of the invention.

Claims (7)

1. The utility model provides a blast furnace wind gap well, little cover leak hunting device which characterized in that: comprises a middle sleeve water inlet branch pipe (3), a middle sleeve water outlet branch pipe (4), a small sleeve water inlet branch pipe (5), a small sleeve water outlet branch pipe (6), a middle sleeve water inlet main pipe (7), a middle sleeve water outlet main pipe (8), a small sleeve water inlet main pipe (9) and a small sleeve water outlet main pipe (10); a plurality of air ports are arranged in the smelting blast furnace, and each air port is provided with a corresponding middle sleeve (1) and a corresponding small sleeve (2); two ends of a cooling water pipeline of the middle sleeve (1) are respectively connected with a group of middle sleeve water inlet branch pipes (3) and a middle sleeve water outlet branch pipe (4); all the middle sleeve water inlet branch pipes (3) are connected with a group of middle sleeve water inlet main pipes (7); all the middle sleeve water outlet branch pipes (4) are connected with a group of middle sleeve water outlet main pipes (8); two ends of a cooling water pipeline of the small sleeve (2) are respectively connected with a group of small sleeve water inlet branch pipes (5) and small sleeve water outlet branch pipes (6); all the small sleeve water inlet branch pipes (5) are connected with a group of small sleeve water inlet main pipes (9); all the small sleeve water outlet branch pipes (6) are connected with a group of small sleeve water outlet main pipes (10);
the corresponding connection parts among the middle sleeve water inlet branch pipe (3), the middle sleeve water outlet branch pipe (4), the small sleeve water inlet branch pipe (5) and the small sleeve water outlet branch pipe (6), the middle sleeve water inlet main pipe (7), the middle sleeve water outlet main pipe (8), the small sleeve water inlet main pipe (9) and the small sleeve water outlet main pipe (10) are respectively provided with a pipe sleeve assembly (11);
pressure gauges (14) are arranged on the middle sleeve water outlet branch pipe (4) and the small sleeve water inlet branch pipe (5).
2. The blast furnace tuyere medium and small set leakage detecting device of claim 1, which is characterized in that: the pipe joint sleeve assembly (11) comprises a main pipe sleeve seat (15) and a branch pipe sleeve seat (16); branch pipes (24) are distributed on the middle sleeve water inlet main pipe (7), the middle sleeve water outlet main pipe (8), the small sleeve water inlet main pipe (9) and the small sleeve water outlet main pipe (10); each group of branch pipes (24) is provided with a group of main pipe sleeve seats (15); each group of the middle sleeve water inlet branch pipe (3), the middle sleeve water outlet branch pipe (4), the small sleeve water inlet branch pipe (5) and the small sleeve water outlet branch pipe (6) are provided with a group of branch pipe sleeve seats (16); the main pipe sleeve seat (15) is provided with a connecting groove (17); the connecting groove (17) is matched and sleeved with the branch pipe sleeve seat (16); and a fixing device is also arranged between the main pipe sleeve seat (15) and the branch pipe sleeve seat (16).
3. The blast furnace tuyere medium and small set leakage detection device of claim 2, which is characterized in that: the fixing device comprises a door-shaped fixing frame (19) and a spring fixing block; both ends of the bottom of the door-shaped fixing frame (19) are hinged with the side surface of the main pipe sleeve seat (15), and the top of the door-shaped fixing frame is provided with a rotatable fixing strip (20); the spring fixing block comprises a pressing block (21) and a bottom sleeve (22); a spring (23) is arranged in the bottom sleeve (22); the pressing block (21) is sleeved in the bottom sleeve (22) and props against the spring (23); a pressure groove (25) is arranged on the pressure block (21); the pressing groove (25) is matched with the fixing strip (20).
4. The blast furnace tuyere medium and small set leakage detecting device of claim 3, which is characterized in that: a sealing washer (18) is arranged in the connecting groove (17); the outward side edge of the pressure groove (25) is lower than the inward side edge.
5. The blast furnace tuyere medium and small set leakage detecting device of claim 1, which is characterized in that: valves I (12) are arranged on the middle sleeve water inlet branch pipe (3), the middle sleeve water outlet branch pipe (4), the small sleeve water inlet branch pipe (5) and the small sleeve water outlet branch pipe (6); and valves II (13) are arranged on the middle sleeve water inlet main pipe (7), the middle sleeve water outlet main pipe (8), the small sleeve water inlet main pipe (9) and the small sleeve water outlet main pipe (10).
6. The blast furnace tuyere medium and small set leakage detecting device of claim 1, which is characterized in that: the middle sleeve water inlet main pipe (7) and the small sleeve water inlet main pipe (9) are both connected with a water inlet source; the middle sleeve water outlet main pipe (8) and the small sleeve water outlet main pipe (10) are communicated with a drainage system.
7. The blast furnace tuyere medium and small set leakage detecting device of claim 1, which is characterized in that: the middle sleeve water inlet branch pipe (3), the middle sleeve water outlet branch pipe (4), the small sleeve water inlet branch pipe (5) and the small sleeve water outlet branch pipe (6) are detachably connected with the corresponding middle sleeve (1) and the corresponding small sleeve (2) in a movable mode.
CN202222424336.3U 2022-09-14 2022-09-14 Leakage detection device for middle and small sleeves of blast furnace tuyere Active CN218765870U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222424336.3U CN218765870U (en) 2022-09-14 2022-09-14 Leakage detection device for middle and small sleeves of blast furnace tuyere

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Application Number Priority Date Filing Date Title
CN202222424336.3U CN218765870U (en) 2022-09-14 2022-09-14 Leakage detection device for middle and small sleeves of blast furnace tuyere

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Publication Number Publication Date
CN218765870U true CN218765870U (en) 2023-03-28

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