CN106282450A - A kind of cool stove water level automatic control device protecting blast-furnace shaft carbon brick and method - Google Patents
A kind of cool stove water level automatic control device protecting blast-furnace shaft carbon brick and method Download PDFInfo
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- CN106282450A CN106282450A CN201510312089.XA CN201510312089A CN106282450A CN 106282450 A CN106282450 A CN 106282450A CN 201510312089 A CN201510312089 A CN 201510312089A CN 106282450 A CN106282450 A CN 106282450A
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Abstract
The present invention relates to a kind of cool stove water level automatic control device protecting blast-furnace shaft carbon brick and method, solve the existing inaccurate problem of personal monitoring's water level, this device is made up of several Level monitors and a controller；Each Level monitor comprises: be combined into inverted T shape water pipe by horizontal water tube and vertical water pipe, horizontal water tube one end is connected with straight blowing pipe of blast furnace, it is provided with into water and water discharging valve, vertically it is respectively mounted the upper and lower stopping means of water level and thermometer in water pipe, and it is provided with hard wooden ball float, water level is raised or lowered to hard wooden ball float when touching the upper and lower stopping means of water level, the output upper and lower limit signal of water level respectively；Controller is PLC, and the signal of the upper and lower stopping means of several water levels and the output of several thermometer is input to the input of controller by respective transmission line, and controller output end is connected with blast furnace water pumping system.The present invention can control cool stove water level automatically, safely, fast and accurately, protects blast-furnace shaft carbon brick.
Description
Technical field
The present invention relates to blast-furnace equipment, refer in particular to a kind of cool stove water level protecting blast-furnace shaft carbon brick and automatically control
Device and method processed.
Background technology
Need to sprinkle water the blast furnace after blowing out during blast furnace overhaul or replacing blast furnace crucibe cool stove,
In the case of only changing cupola well, the resistance to material of blast furnace also will be continuing with after air-supply.Current fetching water is cool
Stove water level monitoring device, can only monitor water level during blast furnace fast cooling stove, and can not efficiently control cool
Water level in stove between the campaign.A large amount of priming charge materials resistance to body of heater cause the infringement of unrepairable, will impact height
Furnace operating and the life of the blast furnace.
The structure of existing cool stove water level monitoring device sees Fig. 1, this device mainly by horizontal tube 102 with perpendicular
Straight tube 105 forms；Horizontal tube 102 one end waterpipe jointing 101 is connected with the belly pipe of blast furnace, the other end
For discharge ends, horizontal tube 102 setting inlet valve 103 at nearly belly pipe, nearly discharge ends sets water discharging valve 104.
VERTICAL TUBE 105 is inverted U-shaped transparent tube, and it is marked with scale 1051.According to law of connected vessels, transparent is perpendicular
Water level 106 in straight tube 105 is consistent with water level in blast furnace, and artificial this water level that reads i.e. obtains water level in stove.
Position belonging to described belly pipe belongs to the bosh position of bottom house, close to cupola well position, in normal production
For the important component part of blast furnace air supply system, during cool stove, belong to draining position.
Said apparatus needs manually to follow the tracks of SEA LEVEL VARIATION, and water level is difficult to judge, and waterlevel data needs artificial biography
Pass, there is certain error and hysteresis quality.Simultaneously because water level is the most strictly controlled by existing cool stove method,
Substantial amounts of cooling water does not carries out sufficient heat exchange with the remaining slag ferrum in cupola well and is i.e. discharged outside stove, causes
Substantial amounts of water resource waste.
Summary of the invention
The invention aims to solve the problem that prior art exists, it is provided that a kind of protection blast-furnace shaft carbon
The cool stove water level automatic control device of brick and method, can control cool stove automatically, safely, fast and accurately
Water level.
It is another object of the present invention to utilize the cool stove water level of protection blast-furnace shaft carbon brick as above automatically to control
Device processed carries out protecting the cool stove water level automatic control method of blast-furnace shaft carbon brick.
It is an object of the invention to be achieved through the following technical solutions:
A kind of cool stove water level automatic control device protecting blast-furnace shaft carbon brick, its several Level monitors and
One controller composition；
Described several Level monitor is equidistantly mounted on each belly pipe of blast furnace surrounding, each water level monitoring
Device comprises:
Horizontal water tube, is the metal material water pipe of level storing, its one end waterpipe jointing and blast furnace
Belly pipe big lid push-pull valve connect, the other end is discharge ends, horizontal water tube sets at nearly waterpipe jointing into
Penstock, sets water discharging valve at nearly discharge ends；
Vertically water pipe, is the transparent material water pipe being vertically mounted on horizontal water tube, and it is positioned at water intaking valve
Between door and water discharging valve, vertical water pipe and horizontal water tube are combined into inverted T shape water pipe；Vertically in water pipe
Top water level position limit device is installed；Vertically the bottom in water pipe is provided with water level lower limit dress
Put；One thermometer is installed at adjacent water level lower caging device, measures the temperature of pipe internal drainage；Vertically
Being provided with hard wooden ball float in water pipe, it is with fluctuation in stage in pipe, and water level rises to the touching of hard wooden ball float
During to water level position limit device, trigger water level position limit device, on water level position limit device output water level
Limit signal, when water level decreasing to hard wooden ball float touches water level lower caging device, triggers under water level
Stopping means, water level lower caging device output water level lower limit signal；
Described controller is PLC, the water level upper limit signal of several water level position limit devices output,
The water level lower limit signal of several water level lower caging devices output and the temperature at discharging condensate letter of several thermometer output
Number be input to the input end interface of controller by respective transmission line, the outfan of controller is beaten with blast furnace
The input end interface of the middle control computer control system in water system connects, and controls computer control system control in this
Make and the shaft of blast furnace water pumping is fetched water equipment and furnace roof is fetched water equipment, shaft fetches water equipment and furnace roof is fetched water equipment
It is respectively arranged with several shaft and fetches water rifle and furnace roof is fetched water rifle composition.
A filter screen it is provided with in horizontal water tube between described waterpipe jointing and inlet valve.
Described water level position limit device and water level lower caging device all use mechanical stop limiter.
Described water level lower caging device is 0.2 ± 0.01m with the horizontal center line vertical dimension of horizontal water tube, water
Position position limit device is 0.6 ± 0.01m with the horizontal center line vertical dimension of horizontal water tube.
Described several Level monitor refers to 4 Level monitors, at blast furnace circumferencial direction uniform design
4 belly pipes, being separated by angle between each belly pipe is 90 °, and 4 Level monitors are respectively mounted wherein
A belly pipe on.
It is another object of the present invention to be achieved through the following technical solutions:
A kind of cool stove water level automatic control device utilizing protection blast-furnace shaft carbon brick as above is protected
The cool stove water level automatic control method of blast-furnace shaft carbon brick, it comprises the steps of
S1, the cool stove preparatory stage, comprises:
S11, equidistantly selects several belly pipe at blast furnace circumferencial direction, logical at the big lid push-pull valve of each belly pipe
Crossing described waterpipe jointing and install a Level monitor, now, inlet valve and water discharging valve are closedown
State；
S12, by the water level position limit device in several Level monitors, water level lower caging device and thermometer
Signal output part be connected with the input end interface of controller by respective transmission line, and defeated by controller
Go out the input of the middle control computer control system that end is connected in blast furnace water pumping system；
S2, the cool stove operation phase, comprises:
S21, the furnace roof equipment of fetching water in blast furnace water pumping system starts to fetch water, and now opens each inlet valve, makes
The water of blast furnace draining flows through horizontal water tube and arrives in vertical water pipe, and its water level is at water level lower caging device and water level
Between position limit device, the most progressively open each water discharging valve；
S22, the water level in each vertical water pipe is upper and lower between water level position limit device and water level lower caging device 5
Float；
S23, when arbitrary hard wooden ball float kept afloat rises to water level position limit device, triggers on water level
Stopping means, it exports water level upper limit signal to controller, controller output end sends instruction, progressively
Reducing shaft to fetch water the quantity that rifle fetches water, if shaft is fetched water, wholly off the fetching water of rifle still can not release upper limit letter
Number, then gradually reduce furnace roof and fetch water the quantity that rifle fetches water, until water level is in water level position limit device and water level
Between lower caging device；
S24, when arbitrary hard wooden ball float kept afloat drops to water level lower caging device, triggers under water level
Stopping means, it exports water level lower limit signal to controller, controller output end sends instruction, progressively
Increasing furnace roof to fetch water the quantity that rifle fetches water, if furnace roof is fetched water, rifle all puts into and still can not release lower limit signal,
Then it is stepped up shaft to fetch water the quantity of fetching water of rifle, until water level is in water level position limit device and water level lower limit
Between the device of position；
S3, cool stove ending phase:
When the meansigma methods of the temperature at discharging condensate that several thermometeies export is less than determined temperature, by controller output end
Sending instruction, close all furnace roofs and shaft is fetched water rifle, stop furnace roof and fetch water and shaft is fetched water, cool stove terminates.
In described step S23, controller output end send instruction, gradually reduce shaft and fetch water what rifle was fetched water
Quantity, specifically refers to: first reducing shaft rifle of fetching water and fetch water, after 2 minutes, upper limit signal does not eliminates again
Reducing shaft rifle of fetching water to fetch water, the rest may be inferred.
In described step S23, controller output end send instruction, gradually reduce furnace roof and fetch water what rifle was fetched water
Quantity, specifically refers to: first reducing furnace roof rifle of fetching water and fetch water, after 2 minutes, upper limit signal does not eliminates again
Reducing furnace roof rifle of fetching water to fetch water, the rest may be inferred.
In described step S24, controller output end send instruction, be stepped up furnace roof and fetch water what rifle was fetched water
Quantity, specifically refers to: first increasing furnace roof rifle of fetching water and fetch water, after 2 minutes, lower limit signal does not eliminates again
Increasing furnace roof rifle of fetching water to fetch water, the rest may be inferred.
In described step S24, controller output end send instruction, be stepped up shaft and fetch water what rifle was fetched water
Quantity, specifically refers to: first increasing shaft rifle of fetching water and fetch water, after 2 minutes, lower limit signal does not eliminates again
Increasing shaft rifle of fetching water to fetch water, the rest may be inferred.
Beneficial effects of the present invention:
The cool stove water level automatic control device and the method that use the protection blast-furnace shaft carbon brick of the present invention can be certainly
Move, control cool stove water level safely, fast and accurately, protect blast-furnace shaft carbon brick.Additionally, due to this
Water level is strictly controlled by bright cool stove method, it is ensured that cooling water fills with the remaining slag ferrum in cupola well
It is discharged outside stove, to beneficially saving water resource after the heat exchange divided.
For further illustrating the above-mentioned purpose of the present invention, construction features and effect, below with reference to accompanying drawing to this
Invention is described in detail.
Accompanying drawing explanation
Fig. 1 is existing cool stove water level monitoring device schematic diagram；
Fig. 2 is the cool stove water level automatic control device schematic diagram of the protection blast-furnace shaft carbon brick of the present invention.
Detailed description of the invention
The detailed description of the invention of the present invention is described in detail by the accompanying drawing below in conjunction with embodiment.
Seeing Fig. 2, the cool stove water level automatic control device of the protection blast-furnace shaft carbon brick of the present invention is by several water
Position monitoring device and a controller composition.
Several Level monitors are equidistantly mounted on each belly pipe of blast furnace surrounding, each Level monitor
Shape is inverted T shape, and it comprises:
Horizontal water tube 3, is the metal material water pipe of level storing, its one end waterpipe jointing 1 and blast furnace
Belly pipe big lid push-pull valve connect, the other end is discharge ends, horizontal water tube 3 sets at nearly waterpipe jointing 1 into
Penstock 4, sets water discharging valve 10 at nearly discharge ends；Level between waterpipe jointing 1 and inlet valve 4
A filter screen 2 it is provided with in water pipe 3；Prevent the bulk in blast furnace draining or particulate contaminants from entering water level prison
Survey in device；
Vertically water pipe 11, is that the transparent material water pipe being vertically mounted on horizontal water tube 3 (can pass through naked eyes
The situation of water level inside observation), it is between inlet valve 4 and water discharging valve 10, vertical water pipe 11 with
Horizontal water tube 3 is combined into inverted T shape water pipe；Vertically the top in water pipe 11 is provided with water level position limit device 7
(employing mechanical stop limiter)；Vertically the bottom in water pipe 11 is provided with water level lower caging device 5 (employing
Mechanical stop limiter)；One thermometer 8 is installed at adjacent water level lower caging device 5, measures pipe internal drainage
Temperature；Vertically being provided with hard wooden ball float 6 in water pipe 11, it is with water level 12 1 lifting in pipe, water level
During rising, the hard wooden ball float 6 kept afloat rises therewith, when it touches water level position limit device 7,
Triggering water level position limit device 7, water level position limit device 7 exports water level upper limit signal；During water level decreasing,
The hard wooden ball float 6 kept afloat declines therewith, when it touches water level lower caging device 5, triggers water
Position lower caging device 5, water level lower caging device 5 exports water level lower limit signal.
Described controller 9 is PLC, the water level upper limit letter of several water level position limit devices 7 output
Number, the water level lower limit signal of several water level lower caging devices 5 output and the row of several thermometer 8 output
Coolant-temperature gage signal is input to the input end interface of controller 9, the output of controller 9 by respective transmission line
End is connected (shown in Fig. 2 dotted line frame) with the system of fetching water 13 of blast furnace, and this system of fetching water is prior art, its
Comprise: middle control computer control system 14, shaft fetches water equipment 15 and furnace roof is fetched water equipment 16；Wherein,
Shaft fetches water equipment 15 and furnace roof is fetched water equipment 16 is respectively arranged with several shaft fetches water rifle and furnace roof rifle of fetching water (is not schemed
Show) composition, described middle control computer control system 14 controls each shaft and fetches water rifle and furnace roof is fetched water the operation of rifle
State；The outfan of controller 9 is connected with middle control computer control system 14 input end interface；Work as controller
During the water level upper limit signal that 9 receive the output of arbitrary water level position limit device 7, hypervolia in blast furnace is described,
Controller 9 outfan sends instruction, is controlled by middle control computer control system 14, gradually reduces shaft and beat
The quantity of fetching water of hydraulic giant, if shaft is fetched water, wholly off the fetching water of rifle still can not release water level upper limit signal, then
Control to gradually reduce furnace roof by middle control computer control system 14 to fetch water the quantity of fetching water of rifle, until all water
Position upper limit blackout；Blast furnace is described when arbitrary water level lower caging device 5 exports water level lower limit signal
Very little, controller 9 outfan sends instruction to the interior water yield, is controlled progressively by middle control computer control system 14
Increasing furnace roof to fetch water the quantity of fetching water of rifle, if furnace roof is fetched water, rifle all puts into and still can not release water level lower limit letter
Number, then control to be stepped up shaft by middle control computer control system 14 and fetch water the quantity of fetching water of rifle, until
All water level lower limit blackouts；The meansigma methods of the temperature at discharging condensate exported when several thermometeies is less than both constant temperatures
When spending, controller 9 outfan send instruction, control to close by middle control computer control system 14 and own
Furnace roof and shaft are fetched water rifle, stop furnace roof and fetch water and shaft is fetched water, and cool stove terminates.
Described water level lower caging device 5 is 0.2 ± 0.01m with the horizontal center line vertical dimension of horizontal water tube 3,
Water level position limit device 7 is 0.6 ± 0.01m with the horizontal center line vertical dimension of horizontal water tube 3.
Being provided with multiple belly pipe at blast furnace circumferencial direction, the water level in blast furnace is theoretically in same level,
Therefore the Level monitor in this water level automatic control device only can use one, the reality shown in illustration 2
Execute example and be only connected to its of blast furnace only with a Level monitor, i.e. Level monitor shown in Fig. 2
In can control the shaft of whole blast furnace on a belly pipe and fetch water equipment 15 and furnace roof is fetched water equipment 16, but
Also being not excluded for the situation of local water-level fluctuation, during use, in should be taken into account stove, water level there may be local partially
Situation high or on the low side, controls its water level for correct, can be in 4 blow-through of blast furnace circumferencial direction uniform design
Pipe (being separated by angle about 90 ° between each belly pipe), is respectively mounted a water level monitoring on these 4 belly pipes
Device, as long as receiving any of which water level upper limit signal or water level lower limit signal, can control whole
The amount of fetching water of shaft fetches water equipment 15 and furnace roof is fetched water equipment 16.It addition, as the row of 4 thermometer outputs
When the meansigma methods of coolant-temperature gage is less than determined temperature, controller 9 outfan sends instruction, close all furnace roofs
And shaft fetches water rifle, stopping furnace roof and fetch water and shaft is fetched water, cool stove terminates.
The present invention utilizes the cool stove water level automatic control device of above-mentioned protection blast-furnace shaft carbon brick to carry out protecting blast furnace
The step of the cool stove water level automatic control method of shaft carbon brick is as follows:
Detailed description of the invention
The present invention provides a kind of cool stove water level automatic control device protecting blast-furnace shaft carbon brick and user thereof
Method, when starting cool furnace operating after blast furnace stopping, uses the present invention to carry out cool stove water level, beat water rate control,
Concretely comprise the following steps:
S1, the cool stove preparatory stage, comprises:
S11, equidistantly selects several belly pipe at blast furnace circumferencial direction, logical at the big lid push-pull valve of each belly pipe
Crossing described waterpipe jointing 1 and install a Level monitor, seam hammer strikes tightly, it is ensured that interface position
Water-tight, now, inlet valve 4 and water discharging valve 10 are closed mode；
S12, by the water level position limit device 7 in several Level monitors, water level lower caging device 5 and temperature
The signal output part of degree meter 8 is connected by the input end interface of respective transmission line and a controller 9, and
The middle control computer control system 14 being connected in blast furnace water pumping system 13 by the outfan of controller 9 inputs
End；
S2, the cool stove operation phase, comprises:
S21, the equipment 16 of fetching water of the furnace roof in blast furnace water pumping system 13 starts to fetch water, and now opens each water intaking valve
Door 4, makes the water of blast furnace draining flow through horizontal water tube 3 and arrives in vertical water pipe 11, and its water level 12 is at water level
Between lower caging device 5 and water level position limit device 7, the most progressively open each water discharging valve 10；
S22, the water level 12 in each vertical water pipe 11 is at water level position limit device 7 and water level lower caging device 5
Between fluctuate；
S23, when arbitrary hard wooden ball float 6 kept afloat rises to water level position limit device 7, triggers water
Position position limit device 7, it exports water level upper limit signal to controller 9, controller 9 outfan sends
Instruction, gradually reduces shaft and fetches water the quantity that rifle fetches water, specifically: first reduces shaft rifle of fetching water and fetches water,
After 2 minutes, upper limit signal does not eliminates and reduces shaft rifle of fetching water again and fetch water, and the rest may be inferred；If shaft is beaten
Wholly off the fetching water of hydraulic giant still can not release upper limit signal, then gradually reduce furnace roof and fetch water the quantity that rifle fetches water,
The most first reducing furnace roof rifle of fetching water to fetch water, after 2 minutes, upper limit signal does not eliminates and reduces by a stove again
Pushing up rifle of fetching water to fetch water, the rest may be inferred, until water level 12 is in water level position limit device 7 and fills with water level lower limit
Put between 5；
S24, when arbitrary hard wooden ball float 6 kept afloat drops to water level lower caging device 5, triggers water
Position lower caging device 5, it exports water level lower limit signal to controller 9, controller 9 outfan sends
Instruction, is stepped up furnace roof and fetches water the quantity that rifle fetches water, specifically: first increases furnace roof rifle of fetching water and fetches water,
After 2 minutes, lower limit signal does not eliminates and is further added by a furnace roof and fetches water the quantity that rifle fetches water, and the rest may be inferred；If
Furnace roof rifle of fetching water all puts into and still can not release lower limit signal, then be stepped up shaft and fetch water the number of fetching water of rifle
Amount, the most first increases shaft rifle of fetching water and fetches water, and 2 minutes lower limit signals do not eliminate and are further added by one
Shaft rifle of fetching water is fetched water, and the rest may be inferred, until water level 12 is in water level position limit device 7 and water level lower limit
Between device 5；
S3, cool stove ending phase:
When the meansigma methods of the temperature at discharging condensate that several thermometeies export is less than determined temperature, controller 9 export
End sends instruction, closes all furnace roofs and shaft is fetched water rifle, stops furnace roof and fetches water and shaft is fetched water, and cool stove is tied
Bundle.
Those of ordinary skill in the art is it should be appreciated that above embodiment is intended merely to explanation originally
The purpose of invention, and is not used as limitation of the invention, as long as in the essential scope of the present invention, to
The upper change of described embodiment, modification all will fall in the range of the claim of the present invention.
Claims (10)
1. the cool stove water level automatic control device protecting blast-furnace shaft carbon brick, it is characterised in that by several water
Position monitoring device and a controller composition；
Described several Level monitor is equidistantly mounted on each belly pipe of blast furnace surrounding, each water level monitoring
Device comprises:
Horizontal water tube, is the metal material water pipe of level storing, its one end waterpipe jointing and blast furnace
Belly pipe big lid push-pull valve connect, the other end is discharge ends, horizontal water tube sets at nearly waterpipe jointing into
Penstock, sets water discharging valve at nearly discharge ends；
Vertically water pipe, is the transparent material water pipe being vertically mounted on horizontal water tube, and it is positioned at water intaking valve
Between door and water discharging valve, vertical water pipe and horizontal water tube are combined into inverted T shape water pipe；Vertically in water pipe
Top water level position limit device is installed；Vertically the bottom in water pipe is provided with water level lower limit dress
Put；One thermometer is installed at adjacent water level lower caging device, measures the temperature of pipe internal drainage；Vertically
Being provided with hard wooden ball float in water pipe, it is with fluctuation in stage in pipe, and water level rises to the touching of hard wooden ball float
During to water level position limit device, trigger water level position limit device, on water level position limit device output water level
Limit signal, when water level decreasing to hard wooden ball float touches water level lower caging device, triggers under water level
Stopping means, water level lower caging device output water level lower limit signal；
Described controller is PLC, the water level upper limit signal of several water level position limit devices output,
The water level lower limit signal of several water level lower caging devices output and the temperature at discharging condensate letter of several thermometer output
Number be input to the input end interface of controller by respective transmission line, the outfan of controller is beaten with blast furnace
The input end interface of the middle control computer control system in water system connects, and controls computer control system control in this
Make and the shaft of blast furnace water pumping is fetched water equipment and furnace roof is fetched water equipment, shaft fetches water equipment and furnace roof is fetched water equipment
It is respectively arranged with several shaft and fetches water rifle and furnace roof is fetched water rifle composition.
2. the cool stove water level automatic control device protecting blast-furnace shaft carbon brick as claimed in claim 1, it is special
Levy and be:
A filter screen it is provided with in horizontal water tube between described waterpipe jointing and inlet valve.
3. the cool stove water level automatic control device protecting blast-furnace shaft carbon brick as claimed in claim 1, it is special
Levy and be:
Described water level position limit device and water level lower caging device all use mechanical stop limiter.
4. the cool stove water level automatic control device protecting blast-furnace shaft carbon brick as claimed in claim 1, it is special
Levy and be:
Described water level lower caging device is 0.2 ± 0.01m with the horizontal center line vertical dimension of horizontal water tube, water
Position position limit device is 0.6 ± 0.01m with the horizontal center line vertical dimension of horizontal water tube.
5. the cool stove water level automatic control device protecting blast-furnace shaft carbon brick as claimed in claim 1, it is special
Levy and be:
Described several Level monitor refers to 4 Level monitors, at blast furnace circumferencial direction uniform design
4 belly pipes, being separated by angle between each belly pipe is 90 °, and 4 Level monitors are respectively mounted wherein
A belly pipe on.
6. the cool stove water level of the protection blast-furnace shaft carbon brick that a kind utilizes as described in any one of claim 1 to 5
Automaton carries out protecting the cool stove water level automatic control method of blast-furnace shaft carbon brick, it is characterised in that bag
Containing following steps:
S1, the cool stove preparatory stage, comprises:
S11, equidistantly selects several belly pipe at blast furnace circumferencial direction, logical at the big lid push-pull valve of each belly pipe
Crossing described waterpipe jointing and install a Level monitor, now, inlet valve and water discharging valve are closedown
State；
S12, by the water level position limit device in several Level monitors, water level lower caging device and thermometer
Signal output part be connected with the input end interface of controller by respective transmission line, and defeated by controller
Go out the input of the middle control computer control system that end is connected in blast furnace water pumping system；
S2, the cool stove operation phase, comprises:
S21, the furnace roof equipment of fetching water in blast furnace water pumping system starts to fetch water, and now opens each inlet valve, makes
The water of blast furnace draining flows through horizontal water tube and arrives in vertical water pipe, and its water level is at water level lower caging device and water level
Between position limit device, the most progressively open each water discharging valve；
S22, the water level in each vertical water pipe is upper and lower between water level position limit device and water level lower caging device 5
Float；
S23, when arbitrary hard wooden ball float kept afloat rises to water level position limit device, triggers on water level
Stopping means, it exports water level upper limit signal to controller, controller output end sends instruction, progressively
Reducing shaft to fetch water the quantity that rifle fetches water, if shaft is fetched water, wholly off the fetching water of rifle still can not release upper limit letter
Number, then gradually reduce furnace roof and fetch water the quantity that rifle fetches water, until water level is in water level position limit device and water level
Between lower caging device；
S24, when arbitrary hard wooden ball float kept afloat drops to water level lower caging device, triggers under water level
Stopping means, it exports water level lower limit signal to controller, controller output end sends instruction, progressively
Increasing furnace roof to fetch water the quantity that rifle fetches water, if furnace roof is fetched water, rifle all puts into and still can not release lower limit signal,
Then it is stepped up shaft to fetch water the quantity of fetching water of rifle, until water level is in water level position limit device and water level lower limit
Between the device of position；
S3, cool stove ending phase:
When the meansigma methods of the temperature at discharging condensate that several thermometeies export is less than determined temperature, by controller output end
Sending instruction, close all furnace roofs and shaft is fetched water rifle, stop furnace roof and fetch water and shaft is fetched water, cool stove terminates.
7. the cool stove water level automatic control method protecting blast-furnace shaft carbon brick as claimed in claim 6, it is special
Levy and be:
In described step S23, controller output end send instruction, gradually reduce shaft and fetch water what rifle was fetched water
Quantity, specifically refers to: first reducing shaft rifle of fetching water and fetch water, after 2 minutes, upper limit signal does not eliminates again
Reducing shaft rifle of fetching water to fetch water, the rest may be inferred.
8. the cool stove water level automatic control method protecting blast-furnace shaft carbon brick as claimed in claim 6, it is special
Levy and be:
In described step S23, controller output end send instruction, gradually reduce furnace roof and fetch water what rifle was fetched water
Quantity, specifically refers to: first reducing furnace roof rifle of fetching water and fetch water, after 2 minutes, upper limit signal does not eliminates again
Reducing furnace roof rifle of fetching water to fetch water, the rest may be inferred.
9. the cool stove water level automatic control method protecting blast-furnace shaft carbon brick as claimed in claim 6, it is special
Levy and be:
In described step S24, controller output end send instruction, be stepped up furnace roof and fetch water what rifle was fetched water
Quantity, specifically refers to: first increasing furnace roof rifle of fetching water and fetch water, after 2 minutes, lower limit signal does not eliminates again
Increasing furnace roof rifle of fetching water to fetch water, the rest may be inferred.
10. the cool stove water level automatic control method protecting blast-furnace shaft carbon brick as claimed in claim 6, its
It is characterised by:
In described step S24, controller output end send instruction, be stepped up shaft and fetch water what rifle was fetched water
Quantity, specifically refers to: first increasing shaft rifle of fetching water and fetch water, after 2 minutes, lower limit signal does not eliminates again
Increasing shaft rifle of fetching water to fetch water, the rest may be inferred.
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| CN201510312089.XA CN106282450B (en) | 2015-06-09 | 2015-06-09 | A kind of cool stove water level automatic control device and method for protecting blast-furnace shaft carbon brick |
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| CN201510312089.XA CN106282450B (en) | 2015-06-09 | 2015-06-09 | A kind of cool stove water level automatic control device and method for protecting blast-furnace shaft carbon brick |
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| CN106282450B CN106282450B (en) | 2018-03-09 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2513088Y (en) * | 2001-04-15 | 2002-09-25 | 薛幼民 | Sensor for detecting and controlling receptive level of blast furnace air tight box water cool system |
| CN201561780U (en) * | 2009-12-10 | 2010-08-25 | 中冶南方工程技术有限公司 | Distributing device sink water level detection device |
| CN201670843U (en) * | 2010-02-24 | 2010-12-15 | 宝山钢铁股份有限公司 | Cycling water pool with temperature reduction control and water level balance functions |
| CN202210243U (en) * | 2011-09-15 | 2012-05-02 | 南京钢铁股份有限公司 | Blast furnace sewage tank water level controller |
| CN103642961A (en) * | 2013-12-27 | 2014-03-19 | 新余钢铁集团有限公司 | Leak detector for blast furnace cooler |
| CN203649352U (en) * | 2013-10-28 | 2014-06-18 | 芜湖新兴铸管有限责任公司 | Water level alarm system for blast furnace granulating basin |
| CN104611491A (en) * | 2015-01-20 | 2015-05-13 | 河北钢铁股份有限公司承德分公司 | Positioning device and method for leakage detection of blast furnace cooling wall |
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2015
- 2015-06-09 CN CN201510312089.XA patent/CN106282450B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2513088Y (en) * | 2001-04-15 | 2002-09-25 | 薛幼民 | Sensor for detecting and controlling receptive level of blast furnace air tight box water cool system |
| CN201561780U (en) * | 2009-12-10 | 2010-08-25 | 中冶南方工程技术有限公司 | Distributing device sink water level detection device |
| CN201670843U (en) * | 2010-02-24 | 2010-12-15 | 宝山钢铁股份有限公司 | Cycling water pool with temperature reduction control and water level balance functions |
| CN202210243U (en) * | 2011-09-15 | 2012-05-02 | 南京钢铁股份有限公司 | Blast furnace sewage tank water level controller |
| CN203649352U (en) * | 2013-10-28 | 2014-06-18 | 芜湖新兴铸管有限责任公司 | Water level alarm system for blast furnace granulating basin |
| CN103642961A (en) * | 2013-12-27 | 2014-03-19 | 新余钢铁集团有限公司 | Leak detector for blast furnace cooler |
| CN104611491A (en) * | 2015-01-20 | 2015-05-13 | 河北钢铁股份有限公司承德分公司 | Positioning device and method for leakage detection of blast furnace cooling wall |
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