CN210127252U - Device for detecting leakage of small sleeve of blast furnace - Google Patents
Device for detecting leakage of small sleeve of blast furnace Download PDFInfo
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- CN210127252U CN210127252U CN201920848106.5U CN201920848106U CN210127252U CN 210127252 U CN210127252 U CN 210127252U CN 201920848106 U CN201920848106 U CN 201920848106U CN 210127252 U CN210127252 U CN 210127252U
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Abstract
The utility model discloses a device for detecting leakage of a blast furnace small sleeve, which comprises a water inlet pipe used for connecting a water outlet of the blast furnace small sleeve, a flash tank connected with the water inlet pipe and a drain pipe connected with the flash tank; and a bubble collector for displaying liquid and gas discharge and collection of the generation rate of bubbles in the flash tank is arranged above the flash tank and is connected with the flash tank through a gas guide pipe and a drainage pipe. The utility model provides a device for detecting leakage of small blast furnace sleeve can be used for detecting whether leakage occurs to the small blast furnace sleeve, and the leakage situation of the small blast furnace sleeve is displayed in real time, thereby helping to find hidden danger in time and solving, and ensuring the safety of production.
Description
Technical Field
The utility model relates to a blast furnace ironmaking technical field, in particular to a device for detecting leakage of a blast furnace small sleeve.
Background
At present, in the known blast furnace smelting process, a tuyere is provided with a large sleeve, a small sleeve and a middle sleeve, the large sleeve is connected with a furnace shell and sleeved with a middle sleeve, the middle sleeve is sleeved with the small sleeve, the small sleeve supplies hot air to the interior of the blast furnace, the temperature of the hot air is generally up to 1100 ℃, the middle sleeve is generally made of cast iron, and the small sleeve is made of copper; the cooling water is introduced into the furnace for cooling, and the furnace wall is prevented from being directly washed by hot air and pulverized coal after the furnace wall is protruded into the furnace. The small sleeve can cause damping down when the furnace wall is seriously damaged and leaked in the using process. The existing method for detecting the small sleeve of the blast furnace is to visually judge whether the tuyere emits red and dark light or not, whether slag is attached or not, whether water stains exist on contact surfaces between the small sleeve of the tuyere and the large sleeve and between the small sleeve of the blast furnace and the middle sleeve or not, whether bubbles flow out or not, whether a water head is white or not is detected by closing water inlet of the small sleeve of the tuyere, whether the water head is surge or not is detected, if the tuyere leaks water greatly and the periphery generates odor, the tuyere is damaged seriously and the tuyere is completely blackened, a pressurizing detection method is adopted to detect when the signs occur, a water outlet of the small sleeve is required to be closed, and whether the small sleeve leaks or not is confirmed by observing a pressure value at the water inlet. However, if the leakage is detected by a pressing detection method, the leakage position is further enlarged, the maintenance is delayed, and further more hidden troubles are brought.
Therefore, how to timely detect whether the blast furnace small sleeve leaks becomes a technical problem to be solved by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a detect device of little cover seepage of blast furnace, this detect device of little cover seepage of blast furnace can directly perceivedly and show the infiltration situation of little cover of blast furnace in time, and can not cause further deterioration to the seepage department, help the staff in time to discover and the little cover seepage of blast furnace and carry out the maintenance.
In order to achieve the above object, the present invention provides a device for detecting leakage of a small sleeve of a blast furnace, which comprises a water inlet pipe for connecting a water outlet of the small sleeve of the blast furnace, a flash tank connected with the water inlet pipe, and a drain pipe connected with the flash tank;
and a bubble collector for displaying liquid and gas discharge and collection of the generation rate of bubbles in the flash tank is arranged above the flash tank and is connected with the flash tank through a gas guide pipe and a drainage pipe.
Optionally, the bubble collector is a sealed transparent container, and when the bubble collector contains liquid, the bubble which is discharged into the bubble collector from the flash tank through the air duct is displayed through the liquid.
Optionally, both ends of the air duct are connected to the top of the flash tank and the bottom of the bubble collector respectively, and both ends of the drainage tube are connected to the side wall of the flash tank and the side wall of the bubble collector respectively.
Optionally, the inlet tube with the drain pipe all is equipped with the control valve, the top of bubble collector is equipped with discharge valve.
Optionally, the bubble trap is provided with a scale to display the liquid level.
Optionally, the system further comprises a bypass pipeline connecting the water inlet pipe and the water outlet pipe, wherein the bypass pipeline is provided with a bypass valve.
Compared with the prior art, the device for detecting the leakage of the small blast furnace sleeve comprises a water inlet pipe, a water outlet pipe and a flash tank, wherein one end of the water inlet pipe is connected with a water outlet of the small blast furnace sleeve, the other end of the water inlet pipe is connected with the flash tank, the flash tank is used for expanding the cooling water of the small blast furnace sleeve, and the water outlet pipe is connected with the flash tank to discharge the water in the flash tank; particularly, a bubble collector which collects gas through liquid discharge is arranged above the flash tank and is connected with the flash tank through an air duct and a drainage tube, and bubbles generated in the flash tank are collected firstly and discharged to the flash tank.
When the small blast furnace sleeve leaks, cooling water of the small blast furnace sleeve leaks into bubbles through the leakage, the cooling water has certain pressure, the size of the bubbles is small, water splash is splashed when water is drained from a water outlet of the small blast furnace sleeve, and the bubbles are difficult to observe from the water outlet of the small blast furnace sleeve directly. When the seepage took place for the little cover of blast furnace, because its delivery port is connected to the inlet tube of the little cover seepage device of detection blast furnace, the cooling water gets into the flash tank dilatation, bubble volume increase collects the separation from the cooling water, and upwards get into the bubble collector, the bubble collector can produce a large amount of bubbles and the decline takes place for the liquid level, simultaneously through the drainage tube to the flash tank drainage in the bubble collector, the liquid level of flash tank can rise, can be through the liquid level of observing bubble collector and flash tank, whether the bubble production rate of bubble collector and the liquid of drainage tube flow and the velocity of flow just can realize the detection to the little cover seepage condition of blast furnace, it is comparatively directly perceived. And when the small sleeve of the blast furnace leaks, the cooling water can be mixed with bubbles, the bubble collector can display the bubbles, the leakage condition can be detected and reflected timely, the device does not need to detect by a pressing method, and the hidden danger of leakage at the leakage position cannot be enlarged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a device for detecting leakage of a small sleeve of a blast furnace provided by the embodiment of the utility model.
Wherein:
1-water inlet pipe, 2-flash tank, 3-water outlet pipe, 4-air guide pipe, 5-drainage pipe, 6-bubble collector, 7-exhaust valve, 8-bypass pipeline and 9-bypass valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In order to make the technical field of the present invention better understand, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.
Referring to fig. 1, fig. 1 is a schematic view of a device for detecting leakage of a small sleeve of a blast furnace according to an embodiment of the present invention.
The utility model provides a device for detecting leakage of small cover of blast furnace includes inlet tube 1, drain pipe 3, flash tank 2 and bubble collector 6, and inlet tube 1 and drain pipe 3 all connect in flash tank 2 for flash tank 2 intake and drainage, wherein inlet tube 1 still is used for connecting the delivery port of small cover of blast furnace, introduces flash tank 2 with the discharged cooling water of small cover of blast furnace delivery port and carries out the dilatation step-down. In particular, the upper part of the flash tank 2 is also connected with a bubble collector 6, the bubble collector 6 is used for containing liquid and is communicated with the flash tank 2 through an air duct 4 and a drainage tube 5 so as to realize liquid drainage and gas collection. When the small blast furnace sleeve leaks, bubbles enter cooling water of the small blast furnace sleeve from the leakage position, and the cooling water usually has certain pressure, so that the size of the bubbles in the cooling water is very small, and the bubbles are more difficult to observe when attached to the inner wall of a water outlet pipeline of the small blast furnace sleeve, so that the leakage of the small blast furnace sleeve is reflected by directly observing the bubbles at a water outlet of the small blast furnace sleeve.
And the utility model provides a device of little cover seepage of detection blast furnace carries out the dilatation decompression through flash tank 2 to the cooling water for bubble volume increase and the cooling water separation that get into the cooling water through the seepage, get into 2 tops bubble collectors 6 of flash tank through air duct 4, simultaneously with the liquid in the bubble collectors 6 through 5 flash tanks 2 of discharging of drainage tube, the speed that produces and the liquid level descend can carry out real-time supervision to the seepage situation of little cover of blast furnace through observing in the bubble collectors 6. The method is beneficial to technical discovery and solving of leakage hidden danger for field technicians, and production safety is guaranteed.
To sum up, the utility model discloses a nuclear core point has three: firstly, the leakage of the small sleeve of the blast furnace is reflected by utilizing the generation of bubbles, secondly, the bubbles are converged and overflowed by expanding and depressurizing the cooling water, and thirdly, the leakage condition of the small sleeve of the blast furnace is visually reflected by the special liquid discharge and gas collection through the bubble generation rate.
The device for detecting leakage of a small sleeve of a blast furnace provided by the invention is described in more detail with reference to the accompanying drawings and specific embodiments.
In a specific embodiment provided by the present invention, please refer to fig. 1, the bubble collector 6 preferably adopts a transparent sealed container, which facilitates the visual observation of the generation rate of the bubbles and the change of the liquid level in the bubble collector 6. Of course, the bubble collector 6 may also be a sealed container with a transparent observation portion, and when the bubble collector 6 is an opaque sealed container, the generation rate of bubbles can be reflected by the flow rate of the liquid in the drainage tube 5 and the liquid level change in the flash tank 2. Obviously, the transparent bubble collector 6 is most intuitive and convenient when detecting whether the small sleeve of the blast furnace leaks. Therefore, the bubble trap 6 is usually a glass container, and one advantage of using a glass container as the bubble trap 6 is that deformation, such as shrinkage, of the bubble trap 6 is not caused when the liquid in the bubble trap 6 flows to the flash tank 2 through the drain tube 5.
The flash tank 2 can also adopt a sealed glass container, and the principle of flash tank is that liquid with higher pressure enters the space of the flash tank 2 with normal pressure or lower pressure, the pressure of the liquid is reduced, bubbles in the liquid expand in volume and gradually converge, and when the volume of the bubbles is increased to a certain degree, the bubbles overflow from the liquid and are separated from the liquid; the air bubbles enter the bubble trap 6 along the air guide tube 4, and a large amount of air bubbles are generated in the bubble trap 6 and the liquid in the bubble trap 6 is discharged through the drainage tube 5.
The utility model provides a detect permeable device of blast furnace oversleeve, 4 both ends of its air duct are connected respectively in the bottom of bubble collector 6 and the top of flash tank 2, and the lateral wall that the lateral wall of bubble collector 6 is close to bottom department and flash tank 2 is then connected respectively at the both ends of drainage tube 5 and is close to bottom department, and the inlet tube 1 and the drain pipe 3 of connecting flash tank 2 all are equipped with the control valve, and the top of bubble collector 6 is equipped with discharge valve 7. Obviously, the above description of the connection position of the air duct 4 and the drainage tube 5 is only for more convenient liquid and gas discharge, and the specific connection position of the air duct 4 and the drainage tube 5 can be flexibly set as required.
The working process of the device for detecting the leakage of the small sleeve of the blast furnace is as follows: at first connect the delivery port of the little cover of blast furnace with inlet tube 1, the control valve of inlet tube 1 is opened, the control valve of drain pipe 3 is closed, open the discharge valve 7 of bubble collector 6 and press from both sides the air duct 4 between bubble collector 6 and the flash tank 2 with the clip, cooling water can follow inlet tube 1 and get into flash tank 2 this moment, because the control valve of drain pipe 3 is closed, air duct 4 is unblocked, flash tank 2 is inside gas compressed when the liquid level rises, oppression cooling water gets into bubble collector 6 along drainage tube 5 until filling up bubble collector 6 and discharge from discharge valve 7. At the moment, the control valve of the drain pipe 3 is opened, the exhaust valve 7 is closed, and the clamp clamped on the air guide pipe 4 is taken down, so that the leakage condition of the small sleeve of the blast furnace can be detected.
Of course, the precondition that the air duct 4 is clamped by the clamp is limited to the air duct 4 as a hose, and the device for detecting the leakage of the small sleeve of the blast furnace generally adopts a hard steel pipe as the air duct 4, and the clamp is adopted to clamp the air duct 4 at the moment, so that the air duct 4 is obviously blocked, and the valve is particularly arranged on the air duct 4 to control the on or off of the air duct 4.
If no leakage occurs in the blast furnace small sleeve, cooling water is directly discharged through the water inlet pipe 1, the flash tank 2 and the water discharge pipe 3, and bubbles (gas dissolved in the original cooling water) are not generated or only generated in a very small quantity in the bubble collector 6; if the leakage happens to the small sleeve of the blast furnace, the gas can enter the cooling water from the leakage position, the cooling water is expanded through the flash tank 2, the bubble volume is increased, the bubble volume is converged until overflowing from the cooling water, the gas enters the bubble collector 6 along the gas guide pipe 4, the bubble collector 6 can emit a large amount of bubbles at the moment, the liquid level in the bubble collector 6 descends, the liquid level in the flash tank 2 ascends, and the leakage condition of the small sleeve of the blast furnace can be intuitively and timely reflected.
In order to improve the observation convenience, the bubble collector 6 of the device for detecting the leakage of the blast furnace small sleeve can be also provided with scales for displaying the liquid level, and the falling speed of the liquid level is observed by combining the scales so as to perform preliminary prejudgment on the size of the leakage position.
In another embodiment of the present invention, the device for detecting the leakage of the small sleeve of the blast furnace is further provided with a bypass pipeline 8 for connecting the water inlet pipe 1 and the water outlet pipe 3, and the bypass pipeline 8 is provided with a bypass valve 9. Both ends of the bypass line 8 are connected to the upstream side of the control valve of the water inlet pipe 1 and the downstream side of the control valve of the water outlet pipe 3. When the flash tank 2 or the bubble collector 6 and the like break down, the cooling water of the small blast furnace jacket can be discharged through the bypass pipeline 8, and the leakage of the small blast furnace jacket caused by the blockage of the water outlet of the cooling water is avoided.
The utility model provides a detect device of little cover seepage of blast furnace, the structure is simple relatively, need not the power supply, also need not to detect through suppressing, can in time and reflect the seepage condition of little cover of blast furnace directly perceivedly through the speed that surveys 6 interior bubbles of bubble collector, and the staff of being convenient for is in time stopped the stove and is maintained according to testing result, has avoided further worsening of seepage to bring other hidden dangers, has improved the security of production.
The device for detecting the leakage of the small sleeve of the blast furnace is described in detail above. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (6)
1. A device for detecting leakage of a small sleeve of a blast furnace is characterized by comprising a water inlet pipe (1) used for connecting a water outlet of the small sleeve of the blast furnace, a flash tank (2) connected with the water inlet pipe (1) and a drain pipe (3) connected with the flash tank (2);
the top of flash vessel (2) is equipped with and is used for showing bubble collector (6) of the flowing back gas-collecting of bubble production rate in flash vessel (2), bubble collector (6) are connected through air duct (4) and drainage tube (5) flash vessel (2).
2. The device for detecting the leakage of the small sleeve of the blast furnace as claimed in claim 1, wherein the bubble collector (6) is a sealed transparent container, and when the bubble collector (6) contains liquid, the bubble which is discharged from the flash tank (2) into the bubble collector (6) through the air duct (4) is displayed through the liquid.
3. The device for detecting the leakage of the small sleeve of the blast furnace as claimed in claim 2, wherein two ends of the air duct (4) are respectively connected with the top of the flash tank (2) and the bottom of the bubble collector (6), and two ends of the drainage tube (5) are respectively connected with the side wall of the flash tank (2) and the side wall of the bubble collector (6).
4. The device for detecting the leakage of the small sleeve of the blast furnace as claimed in claim 3, wherein the water inlet pipe (1) and the water outlet pipe (3) are both provided with control valves, and the top of the bubble collector (6) is provided with an exhaust valve (7).
5. The device for detecting the leakage of a small sleeve of a blast furnace as claimed in any one of claims 2 to 4, wherein said bubble collector (6) is provided with a scale for displaying the liquid level.
6. The apparatus for detecting leakage of blast furnace mantles according to claim 5, characterised in that it further comprises a bypass pipe (8) connecting the inlet pipe (1) and the outlet pipe, the bypass pipe (8) being provided with a bypass valve (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920848106.5U CN210127252U (en) | 2019-06-05 | 2019-06-05 | Device for detecting leakage of small sleeve of blast furnace |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920848106.5U CN210127252U (en) | 2019-06-05 | 2019-06-05 | Device for detecting leakage of small sleeve of blast furnace |
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| CN210127252U true CN210127252U (en) | 2020-03-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110055363A (en) * | 2019-06-05 | 2019-07-26 | 山东钢铁股份有限公司 | A kind of device of the small set leakage of detection blast furnace |
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2019
- 2019-06-05 CN CN201920848106.5U patent/CN210127252U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110055363A (en) * | 2019-06-05 | 2019-07-26 | 山东钢铁股份有限公司 | A kind of device of the small set leakage of detection blast furnace |
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