CN104928423A - Blast furnace cooling wall leakage detection device - Google Patents
Blast furnace cooling wall leakage detection device Download PDFInfo
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- CN104928423A CN104928423A CN201510342735.7A CN201510342735A CN104928423A CN 104928423 A CN104928423 A CN 104928423A CN 201510342735 A CN201510342735 A CN 201510342735A CN 104928423 A CN104928423 A CN 104928423A
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- pipe
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- water inlet
- cooling stave
- blast
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention relates to the technical field of blast furnace smelting, aims to solve the technical problems of complex process and high time cost during leakage detection of a blast furnace cooling wall and provides a blast furnace cooling wall leakage detection device which comprises a blast furnace body, a water supply pipe, a water return pipe, multiple water incoming elbow flowmeters, multiple master water incoming pipes, multiple water outgoing elbow flowmeters and multiple master water outgoing pipes. The water supply pipe is arranged around the blast furnace body at a furnace base of the same, each water incoming elbow flowmeter is connected with one end of a cooling water pipe through one master water incoming pipe, the water return pipe is arranged around the blast furnace body at a furnace top of the same, each water outgoing elbow flowmeter is connected with the other end of the cooling water pipe through one master water outgoing pipe, and the water incoming elbow flowmeters and the water outgoing elbow flowmeters are in one-to-one correspondence. Whether the cooling water pipe on the cooling wall is damaged or not is judged by utilizing flow change of the water incoming elbow flowmeters and the water outgoing elbow flowmeters, so that the leakage detection process is simple and convenient, and quick leakage detection of the blast furnace cooling wall is realized.
Description
Technical field
The present invention relates to technical field of blast furnace process, particularly relate to a kind of blast furnace cooling stave leak detection device.
Background technology
For large blast furnace soft water closed circulating system, under normal circumstances, low-chromium cast-iron cooling stave or light face cast copper cooling wall is adopted in cupola well section, light face spheroidal graphite cast iron or light face cast copper cooling wall is adopted in air port, adopt rolling copper cooling wall at bosh and furnace bosh section, adopt ductile iron cooling stave in shaft middle and upper part.And, no matter adopt which kind of cooling stave, once the middle and later periods used to blast furnace, the cooling stave damaged at first is still in air port, reason is that air port is coke raceway zone, and coke burning produces high temperature, and cooling stave can be subject to the injury of high-temperature hot stress and washing away of high-temperature coal air-flow.What secondly damage is bosh section and upper shaft, and the reason that bosh section cooling stave damages is that this section is slag iron drippage district, and this place's cooling stave is not only subject to washing away of high-temperature coal air-flow, but also is subject to the erosion of slag iron; And the reason that upper shaft cooling stave damages is that upper shaft is ore deposit, parch district, cooling stave herein is not only subject to friction and the impact of furnace charge, and be subject to the impact of blast-furnace body 1 thermal expansion, filler between this place's cooling stave and furnace shell very easily comes off, gas is made to play a reversed role to the back of cooling stave, thermal stresses strengthens further herein, and therefore, cooling stave sleeve pipe is as easy as rolling off a log to break.Along with the reinforcing degree of blast furnace is higher, the damaged degree of cooling stave also can be larger, will be more and more obvious to the stove labour middle and later periods, therefore, and also can be more and more frequent to the leakage detection of cooling stave.
At present, in a kind of leakage inspection method, often the two ends up and down of row cooling stave water pipe are provided with by-pass valve with mechanical pressure gauge and pressure release valve, when leakage detection, utilize the upper and lower by-pass line of connection by metal hose, check rear to by-pass line pressure release, dismounting metallic hose, then other pipelines have been checked.But this leakage inspection method not only venting duration is longer, for the connection of metallic hose, also very complicated loaded down with trivial details, therefore, the leakage detection time is long.
And, in another kind of leakage inspection method, utilize air driven pump to be connected with wind band, be connected with the waterproofing valve of threeway with each section of cooling stave of examine more afterwards, thus cooling stave is separated and ventilates suppress, whether fall pressure determine whether the water pipe of cooling stave damages by observing tensimeter.But, adopt this leakage inspection method still to there is the problem of connection procedure complexity, and same needs spends the longer time to carry out leakage detection.
In sum, the leakage inspection method of prior art all needs to spend the longer time, and leakage detection process very complicated.
Summary of the invention
The present invention by providing a kind of blast furnace cooling stave leak detection device, solve prior art to the leakage detection process of blast furnace cooling stave the complicated and technical problem that spended time is long.
Embodiments provide a kind of blast furnace cooling stave leak detection device, comprise blast-furnace body, water-supply pipe, return water pipe, multiple water inlet elbowmeter, organize water inlet manifold more, multiple Discharging bent-tube under meter and the total rising pipe of many groups;
The cooling stave of described blast-furnace body comprises multiple water-cooled tube;
Described water-supply pipe at the furnace foundation place of described blast-furnace body around the surrounding being arranged at described blast-furnace body;
Described multiple water inlet elbowmeter is arranged along described water-supply pipe, and each described water inlet elbowmeter is connected with one end of described water-cooled tube by water inlet manifold described in a group;
Described return water pipe at the furnace roof place of described blast-furnace body around the surrounding being arranged at described blast-furnace body;
Described multiple Discharging bent-tube under meter is arranged along described return water pipe, and each described Discharging bent-tube under meter is connected with the other end of described water-cooled tube by rising pipe total described in a group;
Wherein, described water inlet elbowmeter and described Discharging bent-tube under meter one_to_one corresponding.
Preferably, also comprise multiple first pipe connecting, described each water inlet elbowmeter is connected with described one group of water inlet manifold by described first pipe connecting;
Wherein, one end of described first pipe connecting is connected with described water inlet elbowmeter, the other end sealing of described first pipe connecting;
And be provided with multiple first connecting hole on described first pipe connecting, described one group of water inlet manifold is connected with described first pipe connecting by described first connecting hole.
Preferably, also comprise multiple second pipe connecting, described each Discharging bent-tube under meter is connected with described one group of total rising pipe by described second pipe connecting;
Wherein, one end of described second pipe connecting is connected with described Discharging bent-tube under meter, the other end sealing of described second pipe connecting;
And be provided with multiple second connecting hole on described second pipe connecting, described one group of total rising pipe is connected with described second pipe connecting by described second connecting hole.
Preferably, described return water pipe comprises multiple sub-return water pipe, and wherein, each described Discharging bent-tube under meter is connected with a described sub-return water pipe.
Preferably, described furnace roof place comprises multiple backwater zone;
Wherein, sub-return water pipe described in a group is provided with in each described backwater zone.
Preferably, described sub-return water pipe is curved pipe.
Preferably, the water inlet pipe of described cooling stave is connected by straight tube with the rising pipe of described cooling stave.
Preferably, the two ends of described straight tube are respectively arranged with a control ball valve.
One or more technical schemes in the embodiment of the present invention, at least have following technique effect or advantage:
The application is by increasing water inlet elbowmeter at water-supply pipe place, increase Discharging bent-tube under meter at return water pipe place simultaneously, whether the water-cooled tube on cooling stave occurs damaging to utilize the fluctuations in discharge of water inlet elbowmeter and Discharging bent-tube under meter to judge, when flow changes, show that water-cooled tube occurs damaged, when flow is consistent, show that water-cooled tube does not occur breakage, leakage detection process is simple, convenient, greatly reduce the time needed for leakage detection, achieve the quick leakage detection to blast furnace cooling stave.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
Fig. 1 is the structural representation of blast furnace cooling stave leak detection device in the embodiment of the present invention;
Fig. 2 is the vertical view at furnace foundation place blast furnace cooling stave leak detection device in the embodiment of the present invention;
Fig. 3 is the vertical view at furnace roof place blast furnace cooling stave leak detection device in the embodiment of the present invention.
Wherein, 1 is blast-furnace body, and 2 is water-supply pipe, and 3 is return water pipe, and 4 is water inlet elbowmeter, and 5 is water inlet manifold, and 6 is Discharging bent-tube under meter, and 7 is total rising pipe, and 8 is the first pipe connecting, and 9 is the second pipe connecting.
Embodiment
For solve prior art to the leakage detection process of blast furnace cooling stave the complicated and technical problem that spended time is long, the invention provides a kind of blast furnace cooling stave leak detection device.
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The invention provides a kind of blast furnace cooling stave leak detection device, as shown in Figure 1, described leak detection device comprises blast-furnace body 1, water-supply pipe 2, return water pipe 3, multiple water inlet elbowmeter 4, many group water inlet manifolds 5, multiple Discharging bent-tube under meter 6 and the total rising pipe 7 of many groups.Blast-furnace body 1 comprises some cooling staves, and the cooling stave of blast-furnace body 1 is provided with multiple row water-cooled tube, and water-cooled tube is vertically arranged, and water-cooled tube is used for cooling the cooling stave of blast-furnace body 1.
Water-supply pipe 2 is at the furnace foundation place of blast-furnace body 1 around the surrounding being arranged at blast-furnace body 1, and as shown in Figure 2, wherein, water-supply pipe 2 can be square around formation, also can be circular around formation, the application only for water-supply pipe around being square, it is not limited.Further, multiple water inlet elbowmeter 4 is arranged along water-supply pipe 2, interval same distance between multiple water inlet elbowmeter 4.Each water inlet elbowmeter 4 is connected with one end of water-cooled tube by one group of water inlet manifold 5.In a preferred embodiment, blast furnace cooling stave leak detection device also comprises multiple first pipe connecting 8, first pipe connecting 8 is for being connected water inlet elbowmeter 4 with water inlet manifold 5, and a water inlet elbowmeter 4 is connected with one group of water inlet manifold 5 by first pipe connecting 8.Concrete, one end of first pipe connecting 8 is connected with water inlet elbowmeter 4, the other end sealing of the first pipe connecting 8, the side pipe face of the first pipe connecting 8 is provided with multiple first connecting hole, the magnitude setting of the first connecting hole is identical with the quantity of water inlet manifold 5 in one group of water inlet manifold 5, and water inlet manifold 5 is connected with the first pipe connecting 8 by the first connecting hole.Wherein, the first pipe connecting 8 can be carbon steel water pipe.
Return water pipe 3 at the furnace roof place of blast-furnace body 1 around the surrounding being arranged at blast-furnace body 1.Multiple Discharging bent-tube under meter 6 is arranged along return water pipe 3, preferably, and interval same distance between multiple Discharging bent-tube under meter 6.Further, each Discharging bent-tube under meter 6 is connected with the other end of water-cooled tube by one group of total rising pipe 7.In a preferred embodiment, blast furnace cooling stave leak detection device also comprises multiple second pipe connecting 9, second pipe connecting 9 is for being connected Discharging bent-tube under meter 6 with total rising pipe 7, and a Discharging bent-tube under meter 6 is connected with one group of water inlet manifold 7 by second pipe connecting 9.Concrete, one end of second pipe connecting 9 is connected with Discharging bent-tube under meter 6, the other end sealing of the second pipe connecting 9, the side pipe face of the second pipe connecting 9 is provided with multiple second connecting hole, the magnitude setting of the second connecting hole is identical with the quantity of rising pipe 7 total in one group of total rising pipe 7, and total rising pipe 7 is connected with the second pipe connecting 9 by the second connecting hole.Wherein, the second pipe connecting 9 also can be carbon steel water pipe.
Wherein, water inlet elbowmeter 4 and Discharging bent-tube under meter 6 one_to_one corresponding, can be obtained the influx of liquid, can be obtained the discharge of liquid by Discharging bent-tube under meter 6 by water inlet elbowmeter 4.Preferably, water inlet elbowmeter 4 is identical with bend pipe radius-of-curvature with the caliber of Discharging bent-tube under meter 6, thus, can avoid there is error between the data that collect into water elbowmeter 4 and Discharging bent-tube under meter 6.
It should be noted that, the magnitude setting of water inlet elbowmeter 4 is relevant with the water-flowing amount of water-supply pipe 2, the application with the diameter of water-supply pipe 2 for 800mm, current lowest speed is 1.3m/s is example, then blast furnace cooling stave leak detection device need arrange the water inlet elbowmeter 4 that 16 diameters are 160mm, corresponding, the Discharging bent-tube under meter 6 that 16 diameters are 160mm is set.In addition, the total quantity of water inlet manifold 5 is identical with the quantity of the water-cooled tube on the cooling stave of blast-furnace body 1, water inlet manifold 5 correspondence connects a water-cooled tube, further, carry out corresponding with multiple water inlet elbowmeter 4 after all water inlet manifolds 5 are divided equally, such as, when blast-furnace body 1 there being 192 water-cooled tubes, blast furnace cooling stave leak detection device comprises 192 water inlet manifolds 5, and, owing to being provided with 16 water inlet elbowmeters 4, then, 12 water inlet manifolds 5 are one group, corresponding 12 water inlet manifolds 5 of water inlet elbowmeter 4, blast furnace cooling stave leak detection device comprises 16 groups of water inlet manifolds 5.Further, due to water inlet elbowmeter 4 and Discharging bent-tube under meter 6 one_to_one corresponding, blast furnace cooling stave leak detection device comprises 16 Discharging bent-tube under meters 6, and meanwhile, blast furnace cooling stave leak detection device comprises 192 total rising pipes 7.
The application is by increasing water inlet elbowmeter 4 at water-supply pipe 2 place, increase Discharging bent-tube under meter 6 at return water pipe place simultaneously, whether the water-cooled tube on cooling stave occurs damaging to utilize the fluctuations in discharge of water inlet elbowmeter 4 and Discharging bent-tube under meter 6 to judge, when flow changes, show that water-cooled tube occurs damaged, when flow is consistent, show that water-cooled tube does not occur breakage, leakage detection process is simple, convenient, greatly reduce the time needed for leakage detection, achieve the quick leakage detection to blast furnace cooling stave.Further, elbowmeter can ensure to carry out work under the condition of low viscous water or steam, and the data collected are accurate, long service life.
Preferably, return water pipe 3 comprises multiple sub-return water pipe, and wherein, each Discharging bent-tube under meter 6 is connected with a sub-return water pipe.Corresponding, furnace roof place comprises multiple backwater zone, is provided with one group of sub-return water pipe in each backwater zone, and wherein, sub-return water pipe is curved pipe.Such as, furnace roof place comprises 4 backwater zones, as shown in Figure 3, furnace roof place comprises the first backwater zone A, the second backwater zone B, the 3rd backwater zone C and the 4th backwater zone D, owing to having 16 Discharging bent-tube under meters, therefore, each backwater zone comprises 4 sub-return water pipes, has 16 sub-return water pipes.In addition, in each backwater zone, each sub-return water pipe in one group of sub-return water pipe arranges in turn centered by blast-furnace body 1, not each sub-return water pipe distance blast-furnace body 1 all not identical around radius, and, one group of sub-return water pipe in each backwater zone is symmetrical, interval same distance between sub-return water pipe corresponding in each group of sub-return water pipe and blast-furnace body, such as, in the one group of sub-return water pipe comprised in first backwater zone A first sub-return water pipe distance blast-furnace body 1 be the first radius around radius, in the one group of sub-return water pipe comprised in second backwater zone B first sub-return water pipe distance blast-furnace body 1 be the second radius around radius, first radius equals the second radius, thus, the first sub-return water pipe in first backwater zone A and the second sub-return water pipe in the second backwater zone B are circumferentially same.The application carries out backwater by arranging multiple sub-return water pipe at furnace roof place, can ensure that blast-furnace body 1 has enough backwater channels.In addition, by being divided back to pool, arrange one group of sub-return water pipe respectively in each backwater zone, each sub-return water pipe, around the surrounding being arranged on blast-furnace body 1, reduces the space shared by the distribution of sub-return water pipe.
Preferably, for single cooling stave, the water inlet pipe of cooling stave is connected by straight tube with the rising pipe of cooling stave, further, being respectively arranged with a control ball valve at the two ends of straight tube, can controlling the inflow of liquid and outflow by controlling ball valve, preferably, the two ends controlling ball valve are provided with rapid-acting coupling, utilize rapid-acting coupling can realize quick connection, process without the need to blast furnace damping down stopping at once production.
Further, in leakage detection process, for a row water-cooled tube, when the flow between the water inlet elbowmeter 4 and Discharging bent-tube under meter 6 at these row water-cooled tube two ends changes, show that this row water-cooled tube occurs there is breakage.Then, the change of furnace body temperature point can be utilized tentatively to judge there is breakage in this row water-cooled tube on which section cooling stave.It is damaged that recycling service water endless tube specifically judges whether this row water-cooled tube occurs on this section of cooling stave, concrete, be connected by the one end with the metallic hose with rapid-acting coupling of the arm in service water endless tube, the other end of metallic hose is connected with the water inlet pipe of the one-step cooling wall of doubtful breakage, and the water inlet pipe of the preceding paragraph cooling stave with the rising pipe of next section of cooling stave of the one-step cooling wall of the doubtful breakage of metallic hose cross-over connection and the one-step cooling wall of doubtful breakage, then the control ball valve on straight tube is closed, observe the fluctuations in discharge of water inlet elbowmeter 4 and Discharging bent-tube under meter 6, determine whether the one-step cooling wall of doubtful breakage breakage occurs, now, soft water in water-cooled tube is after walking crossover passage, still walk tubulation passage, and the one-step cooling wall of doubtful breakage is connected with service water, its water outlet flows into pallet along stove skin.The method of the application can realize the quick leakage detection to blast furnace cooling stave, and realizes service water maintenance, and again can not injure cooling stave, without the need to leakage detection of feeling suffocated, therefore can not cause secondary injury to cooling stave.
Further, after judging that the water-cooled tube on cooling stave exists damage, isolate the water-cooled tube of damage, will determine that the water-cooled tube damaged passes into service water maintenance from the bottom to top.
Technical scheme in above-mentioned the embodiment of the present application, at least has following technique effect or advantage:
The application is by increasing water inlet elbowmeter at water-supply pipe place, increase Discharging bent-tube under meter at return water pipe place simultaneously, whether the water-cooled tube on cooling stave occurs damaging to utilize the fluctuations in discharge of water inlet elbowmeter and Discharging bent-tube under meter to judge, when flow changes, show that water-cooled tube occurs damaged, when flow is consistent, show that water-cooled tube does not occur breakage, leakage detection process is simple, convenient, greatly reduce the time needed for leakage detection, achieve the quick leakage detection to blast furnace cooling stave.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (8)
1. a blast furnace cooling stave leak detection device, is characterized in that, comprises blast-furnace body, water-supply pipe, return water pipe, multiple water inlet elbowmeter, organizes water inlet manifold more, multiple Discharging bent-tube under meter and the total rising pipe of many groups;
The cooling stave of described blast-furnace body comprises multiple water-cooled tube;
Described water-supply pipe at the furnace foundation place of described blast-furnace body around the surrounding being arranged at described blast-furnace body;
Described multiple water inlet elbowmeter is arranged along described water-supply pipe, and each described water inlet elbowmeter is connected with one end of described water-cooled tube by water inlet manifold described in a group;
Described return water pipe at the furnace roof place of described blast-furnace body around the surrounding being arranged at described blast-furnace body;
Described multiple Discharging bent-tube under meter is arranged along described return water pipe, and each described Discharging bent-tube under meter is connected with the other end of described water-cooled tube by rising pipe total described in a group;
Wherein, described water inlet elbowmeter and described Discharging bent-tube under meter one_to_one corresponding.
2. blast furnace cooling stave leak detection device as claimed in claim 1, is characterized in that, also comprise multiple first pipe connecting, and described each water inlet elbowmeter is connected with described one group of water inlet manifold by described first pipe connecting;
Wherein, one end of described first pipe connecting is connected with described water inlet elbowmeter, the other end sealing of described first pipe connecting;
And be provided with multiple first connecting hole on described first pipe connecting, described one group of water inlet manifold is connected with described first pipe connecting by described first connecting hole.
3. blast furnace cooling stave leak detection device as claimed in claim 1, is characterized in that, also comprise multiple second pipe connecting, and described each Discharging bent-tube under meter is connected with described one group of total rising pipe by described second pipe connecting;
Wherein, one end of described second pipe connecting is connected with described Discharging bent-tube under meter, the other end sealing of described second pipe connecting;
And be provided with multiple second connecting hole on described second pipe connecting, described one group of total rising pipe is connected with described second pipe connecting by described second connecting hole.
4. blast furnace cooling stave leak detection device as claimed in claim 1, it is characterized in that, described return water pipe comprises multiple sub-return water pipe, and wherein, each described Discharging bent-tube under meter is connected with a described sub-return water pipe.
5. blast furnace cooling stave leak detection device as claimed in claim 4, it is characterized in that, described furnace roof place comprises multiple backwater zone;
Wherein, sub-return water pipe described in a group is provided with in each described backwater zone.
6. blast furnace cooling stave leak detection device as claimed in claim 4, it is characterized in that, described sub-return water pipe is curved pipe.
7. blast furnace cooling stave leak detection device as claimed in claim 1, it is characterized in that, the water inlet pipe of described cooling stave is connected by straight tube with the rising pipe of described cooling stave.
8. blast furnace cooling stave leak detection device as claimed in claim 7, it is characterized in that, the two ends of described straight tube are respectively arranged with a control ball valve.
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| CN201510342735.7A CN104928423B (en) | 2015-06-19 | 2015-06-19 | A kind of blast furnace cooling stave leak detection device |
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| CN201510342735.7A CN104928423B (en) | 2015-06-19 | 2015-06-19 | A kind of blast furnace cooling stave leak detection device |
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| CN104928423B CN104928423B (en) | 2017-04-05 |
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| CN110184402A (en) * | 2018-07-14 | 2019-08-30 | 江阴兴澄特种钢铁有限公司 | A method of it is online quickly to determine the specific leak source of blast furnace cooling stave |
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| CN104928423B (en) | 2017-04-05 |
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