CN109306388A - A kind of monitoring device for high stove cool furnace - Google Patents
A kind of monitoring device for high stove cool furnace Download PDFInfo
- Publication number
- CN109306388A CN109306388A CN201710630837.8A CN201710630837A CN109306388A CN 109306388 A CN109306388 A CN 109306388A CN 201710630837 A CN201710630837 A CN 201710630837A CN 109306388 A CN109306388 A CN 109306388A
- Authority
- CN
- China
- Prior art keywords
- furnace
- cooling water
- drainpipe
- blast furnace
- monitoring device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/10—Cooling; Devices therefor
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/006—Automatically controlling the process
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/24—Test rods or other checking devices
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Blast Furnaces (AREA)
Abstract
The invention discloses a kind of monitoring devices for high stove cool furnace, it is connected to the sighting tube of the blast furnace, including the drainpipe being connected with the sighting tube, and it is connected to the top of the drainpipe vertically and carves graduated vertical pipe, the sewage pipe for the cooling water discharge containing particulate matter is connected with below the drainpipe, the sewage pipe is equipped with blowdown valve.Using the monitoring device for high stove cool furnace of the invention, the cooling water in State of Blast Furnace containing particulate matter can be discharged by sewage pipe, at the same can also in real-time monitoring furnace cooling water liquid level and temperature.
Description
Technical field
The present invention relates to field of blast-furnace equipment, in particular to a kind of monitoring device for high stove cool furnace.
Background technique
Currently, large blast furnace, which carries out quick overhaul, has become a kind of trend, after blast furnace stopping it may first have to blast furnace
Carry out cool furnace operation.Common cool furnace method is as often as possible to take away furnace by pouring into a large amount of cooling water into blast furnace
The heat of interior residue, so as to shorten the cool furnace time.
Since the temperature of cooling water in State of Blast Furnace will affect the effect and speed of cooling water heat exchange, and then influence blast furnace
Therefore cool furnace effect and speed during high stove cool furnace, need to carry out real-time monitoring to the temperature of cooling water in furnace, thus
The effectively filling row of the heat-exchange temperature of control cooling water and cooling water, and then improve cool furnace effect and speed.
Meanwhile the liquid level of cooling water cannot be excessively high in State of Blast Furnace, this is because can be led if the liquid level of cooling water is excessively high
Cause the discharge pressure at blast furnace taphole excessive, molten iron can be ejected into outside gutter, be easy to cause safety accident；In addition, due to height
It is hard sealing between each component of furnace air-supply passage, if the liquid level of cooling water is excessively high, hard seal failure between each component, meeting
It causes cooling water to leak outside and cause environmental pollution, does not meet the environmental protection standard of current country, therefore, during high stove cool furnace,
It also needs to carry out real-time monitoring to the liquid level of cooling water in furnace, to avoid the generation of above-mentioned phenomenon.
Blast furnace is connected with blast furnace air-supply passage, and Fig. 1 is the structural schematic diagram of blast furnace air-supply passage in the prior art.Such as Fig. 1
Shown, which includes the air port 2 protruded into 1 furnace of blast furnace and the belly pipe 3 that connect with the air port 2, belly pipe 3
Side far from air port 2 is communicated with sighting tube 4, and the end of the sighting tube 4 is equipped with eye hole mirror 5, can observe this by eye hole mirror 5
Situation inside 1 air-supply passage of blast furnace and blast furnace 1, including observing whether 1 air-supply passage of blast furnace has blocking, furnace charge in furnace
Situation etc..
In the prior art by the way that thermometer and liquidometer is arranged in air port 2, with the temperature and liquid level to cooling water in furnace
Real-time monitoring is carried out, still, since during cool furnace, the immersion through supercooled water in furnace, a large amount of particulate matter can be with cooling
Water discharge, and in the prior art without special blow-off line, lead to pipeline blockage where thermometer and liquidometer, in-furnace temperature
It is unable to monitor with liquid level, pipe can only be removed or manually clears up the particulate matter in pipeline to restore normally to monitor, and due to
Cool stokehold phase cooler-water temperature is very high, as manual cleaning can bring great security risk.
For the above problem in the presence of the prior art, provide a kind of monitoring device for high stove cool furnace have it is important
Meaning.
Summary of the invention
It, can will be in State of Blast Furnace to solve the above problems, the present invention provides a kind of monitoring device for high stove cool furnace
Cooling water containing particulate matter is discharged by sewage pipe, at the same can also in real-time monitoring furnace cooling water liquid level and temperature.
To achieve the above object, the monitoring device for high stove cool furnace of the invention, is connected to the sighting tube of the blast furnace,
Including the drainpipe being connected with the sighting tube, and be connected to vertically the top of the drainpipe and carve it is graduated vertical
It manages, the sewage pipe for the cooling water discharge containing particulate matter is connected with below the drainpipe, the sewage pipe is equipped with row
Dirty valve.
Preferably, the drainpipe is equipped with temperature monitoring hole, is inserted with thermocouple on the temperature monitoring hole.
Preferably, the drainpipe is equipped with pressure gauge.
Preferably, the drainpipe is equipped with dredge valve.
Compared with prior art, the beneficial effect of the monitoring device for high stove cool furnace of the invention is:
1, sewage pipe is connected in the lower section of drainpipe, the cooling water containing particulate matter can be discharged, avoids drainpipe
The blocking etc. of pipeline where upper other pipelines, such as vertical pipe and pressure gauge, while also accelerating cooling water in State of Blast Furnace
Displacement；
2, it is communicated with vertically on drainpipe and carves graduated vertical pipe, so that vertical pipe, air-supply passage and blast furnace structure
At U-tube structure, the liquid level of vertical pipe is the liquid level of cooling water in State of Blast Furnace；
3, temperature monitoring hole is set on drainpipe and is inserted into thermocouple in temperature monitoring hole, it can be in real-time monitoring State of Blast Furnace
The temperature of cooling water, in time by temperature feedback to control system, to control the heat-exchange temperature and cooling water of cooling water in time
Filling row；
4, pressure gauge is set on drainpipe, by comparing the liquid level of vertical pipe and the numerical value of pressure gauge, to judge pipeline
Whether blocking is had；
5, dredge valve is set on drainpipe, after tamper is discharged by sewage pipe, if pipeline still has blocking, can be led to
Opening dredge valve is crossed, manual cleaning particulate matter guarantees the normal monitoring of liquid level and temperature to guarantee that pipeline is unobstructed.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of blast furnace air-supply passage in the prior art, wherein arrow direction represents air supply direction；
Fig. 2 is the structural schematic diagram of the monitoring device for high stove cool furnace of the invention；
Fig. 3 is that the monitoring device for high stove cool furnace of the invention is installed on the signal of the mounting structure on blast furnace air-supply passage
Figure, wherein arrow direction represents flow of cooling water direction.
Specific embodiment
In the following, being further described in conjunction with attached drawing to structure and working principle etc. of the invention.
Referring to fig. 2 and Fig. 3 being combined, the monitoring device for high stove cool furnace of the invention is connected to the sighting tube 4 of blast furnace 1,
Including the drainpipe 6 being connected with sighting tube 4, and it is connected to the top of drainpipe 6 vertically and carves graduated vertical pipe 7,
The lower section of drainpipe 6 is connected with the sewage pipe 8 for the cooling water discharge containing particulate matter, and sewage pipe 8 is equipped with blowdown valve 9.
Since the monitoring device for high stove cool furnace of the invention need to be connected to the sighting tube 4 of blast furnace 1, in blast furnace 1
Cool stokehold, it is necessary first to remove the eye hole mirror 5 of 4 end of sighting tube, by the drainpipe 6 of above-mentioned monitoring device and sighting tube 4
Connection.In addition, as shown in figure 3, in the cool stokehold of blast furnace 1 also blank flange 14 need to be set in the air inlet lid of belly pipe 3, it will
The air inlet of the belly pipe 3 is blocked.
The top of drainpipe 6 is communicated with vertically carves graduated vertical pipe 7, and one end of the vertical pipe 7 is connected with drainpipe 6
Logical, the other end is communicated with atmosphere, so that vertical pipe 7, air-supply passage and 1 furnace body of blast furnace constitute U-tube structure, the liquid of vertical pipe 7
Position is the liquid level of cooling water in 1 furnace of blast furnace, to monitor cooling water in 1 furnace of blast furnace by the liquid level in monitoring vertical pipe 7
Liquid level.
During cooling water is discharged in 1 furnace of blast furnace, since the presence of particulate matter is easy to happen pipeline blockage, it is vertical to cause
The liquid level of pipe 7 and the liquid level of cooling water in 1 furnace of blast furnace are not consistent, influence the judgement to Coolant-Level in 1 furnace of blast furnace, thus
It may cause the waste of cooling water.In order to find the above problem in time, pressure gauge 12 can be set on drainpipe 6, pipeline without
When blocking, the reading of pressure gauge 12 should be corresponded with the liquid level of vertical pipe 7.During cool furnace, such as discovery pressure gauge 12
Reading is not corresponding with the liquid level of vertical pipe 7, then illustrates that pipeline is possible to block, tamper need to be discharged, to guarantee the accurate of liquid level
Monitoring.
The lower section connection sewage pipe 8 and sewage pipe 8 of drainpipe 6 are equipped with blowdown valve 9, can effectively clear up the blocking in pipeline
Object is opened blowdown valve 9, the cooling water containing particulate matter quickly can be discharged, to guarantee pipeline when pipeline blocks
It is unimpeded, realize the monitoring device to the accurate measurements of situation in 1 furnace of blast furnace.Meanwhile cooling water is discharged by sewage pipe 8, it can be with
The displacement for accelerating cooling water in 1 furnace of blast furnace, improves the cool efficiency of furnace.
In order to monitor the temperature change of cooling water in 1 furnace of blast furnace in time, temperature monitoring hole 10 can be set on drainpipe 6,
Thermocouple 11 is inserted on temperature monitoring hole 10, thermocouple 11 can be connected with the temperature number that will be measured with the control system of control room
According to control system is fed back to, so that control system judges, the filling row for carrying out cooling water is decided whether.When thermocouple 11
Measured temperature has been more than numerical value set by control system, then needs to open blowdown valve 9, and the excessively high cooling water of temperature is passed through
Sewage pipe 8 is discharged, and pours into new cooling water into 1 furnace of blast furnace and continue heat exchange, effectively controls the heat exchange of cooling water
Temperature and the filling row for rationally controlling cooling water, avoid the waste of cooling water, improve the cool efficiency of furnace.
When pipeline blockage is serious, sewage pipe 8 cannot in time be cleaned out tamper, as shown in Figure 2 and Figure 3, can also be
Drainpipe 6 is equipped with dredge valve 13, can be by opening dredge valve 13, manually when the tamper in pipeline is difficult to clean up clean
Clear up the tamper in pipeline.Since cool stokehold phase major part tamper is discharged by sewage pipe 8, and later period cooling water temperature compared with
It is low, tamper is manually cleared up by dredge valve 13 and does not have the risk being burned.
More than, schematic description only of the invention, it will be recognized by those skilled in the art that without departing from work of the invention
On the basis of making principle, a variety of improvement can be made to the present invention, this is all belonged to the scope of protection of the present invention.
Claims (4)
1. a kind of monitoring device for high stove cool furnace, is connected to the sighting tube of the blast furnace, which is characterized in that including with it is described
The drainpipe that sighting tube is connected, and be connected to the top of the drainpipe vertically and carve graduated vertical pipe, the row
The sewage pipe for the cooling water discharge containing particulate matter is connected with below water pipe, the sewage pipe is equipped with blowdown valve.
2. being used for the monitoring device of high stove cool furnace as described in claim 1, which is characterized in that the drainpipe is equipped with temperature
Monitoring holes are inserted with thermocouple on the temperature monitoring hole.
3. being used for the monitoring device of high stove cool furnace as described in claim 1, which is characterized in that the drainpipe is equipped with pressure
Table.
4. being used for the monitoring device of high stove cool furnace as described in claim 1, which is characterized in that the drainpipe is equipped with dredging
Valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710630837.8A CN109306388A (en) | 2017-07-28 | 2017-07-28 | A kind of monitoring device for high stove cool furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710630837.8A CN109306388A (en) | 2017-07-28 | 2017-07-28 | A kind of monitoring device for high stove cool furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109306388A true CN109306388A (en) | 2019-02-05 |
Family
ID=65205509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710630837.8A Pending CN109306388A (en) | 2017-07-28 | 2017-07-28 | A kind of monitoring device for high stove cool furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109306388A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110701597A (en) * | 2019-09-12 | 2020-01-17 | 广东韶钢松山股份有限公司 | Device and method for detecting boiler pollution discharge |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201158672Y (en) * | 2008-01-04 | 2008-12-03 | 宝山钢铁股份有限公司 | Cooling water monitoring device for fast cooling blast furnace |
| CN201322191Y (en) * | 2008-12-23 | 2009-10-07 | 南京钢铁联合有限公司 | Water draining device for gas condensate |
| CN203295530U (en) * | 2013-04-27 | 2013-11-20 | 山西太钢不锈钢股份有限公司 | Anti-blocking device of pressure guide pipe |
| CN104315896A (en) * | 2014-09-25 | 2015-01-28 | 北京中科华誉能源技术发展有限责任公司 | Detachable heat exchanger for blast furnace slag flushing water |
| CN205606194U (en) * | 2016-04-19 | 2016-09-28 | 陕钢集团汉中钢铁有限责任公司 | Coal gas drainer convenient to clearance |
-
2017
- 2017-07-28 CN CN201710630837.8A patent/CN109306388A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201158672Y (en) * | 2008-01-04 | 2008-12-03 | 宝山钢铁股份有限公司 | Cooling water monitoring device for fast cooling blast furnace |
| CN201322191Y (en) * | 2008-12-23 | 2009-10-07 | 南京钢铁联合有限公司 | Water draining device for gas condensate |
| CN203295530U (en) * | 2013-04-27 | 2013-11-20 | 山西太钢不锈钢股份有限公司 | Anti-blocking device of pressure guide pipe |
| CN104315896A (en) * | 2014-09-25 | 2015-01-28 | 北京中科华誉能源技术发展有限责任公司 | Detachable heat exchanger for blast furnace slag flushing water |
| CN205606194U (en) * | 2016-04-19 | 2016-09-28 | 陕钢集团汉中钢铁有限责任公司 | Coal gas drainer convenient to clearance |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110701597A (en) * | 2019-09-12 | 2020-01-17 | 广东韶钢松山股份有限公司 | Device and method for detecting boiler pollution discharge |
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Application publication date: 20190205 |
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| RJ01 | Rejection of invention patent application after publication |