CN207845724U - A kind of combustion gas blowing device - Google Patents
A kind of combustion gas blowing device Download PDFInfo
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- CN207845724U CN207845724U CN201721578138.5U CN201721578138U CN207845724U CN 207845724 U CN207845724 U CN 207845724U CN 201721578138 U CN201721578138 U CN 201721578138U CN 207845724 U CN207845724 U CN 207845724U
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- combustion gas
- gas injection
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Abstract
A kind of combustion gas blowing device, the device include sintering pallet, blow, combustion gas blowing device.Combustion gas blowing device includes combustion gas injection manifold, combustion gas injection branch pipe, combustion gas injection tube row.Sintering pallet is located in blow.Combustion gas injection manifold is arranged in the outside of blow.Combustion gas injection tube row is arranged in the top of sintering pallet, and the ranking of combustion gas injection tube is in blow.Combustion gas injection branch pipe one end connection combustion gas injection manifold connects combustion gas injection tube row with the other end.The device further includes the nitrogen pipeline being arranged in the sides combustion gas injection manifold, and nitrogen pipeline is blown manifold with combustion gas by connecting tube and connect.The utility model can precisely judge whether catch fire in blow, and in time, quickly be eliminated solution to case of fire.
Description
Technical field
The utility model is related to a kind of sintering machine combustion gas blowing devices, and in particular to quick detection of catching fire in a kind of blow
And the combustion gas blowing device of self-adaptive processing, belong to sintering art.
Background technology
Sintering process is the key link smelted iron in flow, and principle is by various powdery iron-containing raw materials, and supplying is suitable
The fuel and flux of amount, are added suitable water, through mixing and making material that a series of physical occur on agglomerating plant after pelletizing
Variation is learned, sintering is blocking, and the next step is carried out to be sent to blast furnace.
In order to reduce the coke ratio and smelting cost of blast furnace ironmaking, requirement of the blast furnace to sinter is often that high intensity and height are gone back
Originality.In sintering circuit, generally require sinter that there is higher intensity, high finished product rate, the lower rate of return mine and lower
Fuel consumption.The sinter of high intensity and high reproducibility consumes less coke in blast furnace ironmaking process, to reduce dioxy
Change the discharge of carbon.In the long run consider, carbon dioxide discharge-reduction requires will be as one of the bottleneck of restriction development of iron ＆ steel industry.According to
Related data introduction, sintering account for about the 60% of industrial discharge total amount with blast furnace process CO2 emissions.Therefore, no matter from enterprise
Industry reduces cost consideration and still considers from environmental protection angle, reduces sintering solid fuel this consumption ratio and reduces blast furnace burden
Fuel ratio becomes the urgent need of ironmaking technology.
Under this overall situation, " the sintering charge level gaseous fuel injection technology " of Japanese JFE companies exploitation comes into being, former
Reason is to be diluted to combustible concentration lower limit gaseous fuel below by being blown above the sintering charge level of a distance after ignition furnace,
Make its combustion heat supplying in sinter bed, to reduce the solid carbon dosage and CO in sinter production2Discharge capacity.Meanwhile
Since the burning of gaseous fuel broadens high temperature bandwidth of the sinter bed in production, so that 1200~1400 DEG C of burning
Knot mine temperature-time is extended, so that the intensity of sinter and 5~10mm porositys are effectively reinforced.It sees at present
Carrying out the technology has preferable energy-saving and emission-reduction upgrading effect.
Blowing device structure under the prior art：Blowing device is by injection manifold, injection branch pipe, injection tube row, gas injection
Aperture blowing, blow and side seals form.Wherein injection one end manifold is connected with plant area gas pipeline, and the other end passes through injection
Branch pipe and injection tube row are connected, and injection tube ranking is in blow, and positioned at sintering pallet top.Combustion gas production when, from
Plant area's gas pipeline enters back into injection branch pipe after entering injection manifold, finally enters injection tube row and by being arranged on pipe row
Combustion gas injection hole sprays, and with air mixed diluting in blow, the mixed gases of design requirement concentration is formed, into sintering
Assisted sintering inside the bed of material, side seals can effectively ensure that combustion gas will not be excessive outer to covering with mixed gases in cover.
In combustion gas injection production, it can be led due to bed permeability is poor, charge level temperature is excessively high, charge level has large fracture etc.
The combustion gas being sprayed on above charge level is caused to catch fire, and the combustion gas injection technology under conventional, prior art, due to can not quickly detect in life
The combustion gas case of fire that may occur at any time in production also can not make self adaptive control processing to catching fire, therefore can have following ask
Topic：
1, energy waste is serious：When combustion gas is when charge level burns, once processing can not be detected and controlled quickly, flame will disappear
A large amount of combustion gas are consumed, while combustion gas can not normally enter and participate in assisted sintering process in the bed of material, will result in fuel in production in this way
A large amount of wastes of resource, country " energy-saving and emission-reduction " have become the main trend of strategic direction under, such energy waste be not by
Allow；
2, equipment life shortens：When combustion gas in charge level burning do not obtain Detection ＆ Controling and when burning for a long time, injection tube
Row is easy the bending in the case where flame toasts for a long time, to lose production and operation ability, the blowing device service life is caused to shorten in this way,
Operating rate is lower, and is substantially got higher to the operation cost of device, and economy declines；
3, there are security risks：Under the prior art, when operating personnel have found that combustion gas is caught fire in cover, need remote in Central Control Room
Journey closes gas header pipe valve, then goes to on-site manual to open nitrogen valve and is purged to the combustion gas in gas header pipe；And it is firing
Air valve is closed and nitrogen valve open between there are the regular hour is poor, when Field Force is in short supply this time difference can even be up to
20~30 minutes；After may result in fuel gas shutoff in this way, flame can flow to Combustion of Gas within Circular Tube along combustion gas and form tempering, to
Lead to the presence of the security risks such as explosion.
Utility model content
In view of the drawbacks of the prior art, the utility model optimizes it on existing blowing device architecture basics and is changed
Into trying hard to develop one kind and can quickly be judged to catch fire in cover according to case temperature curvilinear motion situation and operating mode and give adaptive
Should put out a fire the method for processing, while have developed corresponding device, and in the hope of making up the loophole of the prior art, reaching makes whole combustion gas
It is blown assisted sintering line of production technology stable yields, the purpose of natural labor.A kind of combustion gas blowing device of the utility model by supervising in real time
The temperature for surveying gas injection blowpipe row top in blow, precisely judges whether catch fire in blow, and to case of fire
It can in time, quickly be eliminated solution.
The first embodiment scheme according to the present utility model, provides a kind of combustion gas blowing device：
A kind of combustion gas blowing device, the device include sintering pallet, blow, combustion gas blowing device.Combustion gas injection dress
It sets including combustion gas injection manifold, combustion gas injection branch pipe, combustion gas injection tube row.Sintering pallet is located in blow.Combustion gas is blown
Manifold is arranged in the outside of blow.Combustion gas injection tube row is arranged in the top of sintering pallet, and the ranking of combustion gas injection tube in
In blow.Combustion gas injection branch pipe one end connection combustion gas injection manifold connects combustion gas injection tube row with the other end.The device also wraps
Include the nitrogen pipeline being arranged in the sides combustion gas injection manifold.Nitrogen pipeline is blown manifold with combustion gas by connecting tube and connect.
Wherein, 70-140 meters of the total length of sintering pallet.
In utility model, which further includes the temperature-detecting device being arranged in blow side.Temperature-detecting device
It stretches into blow and positioned at the top of combustion gas injection tube row.
Preferably, connecting tube is equipped with nitrogen valve.
Preferably, combustion gas injection manifold is equipped with burnt gas valve.Burnt gas valve setting is total in connecting tube and combustion gas injection
The upstream of pipe link position.
In the present invention, which further includes sync control device, and sync control device connects and controls nitrogen valve
Door and burnt gas valve.Preferably, sync control device is synchronous control pull rod device.Synchronous control pull rod device includes combustion gas
Pull rod, nitrogen is divided to divide pull rod, connection cross bar, whole tying rod and driving device.Wherein combustion gas divides pull rod to be connect with burnt gas valve.Nitrogen
Pull rod is divided to be connect with nitrogen valve.One end of whole tying rod divides pull rod and nitrogen that pull rod is divided to connect with combustion gas respectively by connecting cross bar
It connects and the other end of whole tying rod is connect with driving device.
In the present invention, the driving device is driving motor or cylinder driver.
Preferably, cylinder driver includes cylinder, piston plate, cup air inlet pipe, cup solenoid valve, rear chamber air inlet pipe
With rear chamber solenoid valve.Wherein piston plate is located at cylinder interior, and cylinder interior is divided into forward and backward room.Before cup air inlet pipe and cylinder
Room connects and communicates.Cup solenoid valve is connect with cup air inlet pipe.Rear chamber air inlet pipe connect and communicates with cylinder rear chamber.Rear chamber electricity
Magnet valve is connect with rear chamber air inlet pipe.One end of piston plate and whole tying rod connects.
Preferably, piston plate is horizontally set on cylinder interior, whole tying rod and piston plate vertical connection.
Preferably, it is 50- that the temperature-detecting device, which stretches into one end in blow at a distance from combustion gas injection tube row,
300mm, preferably 100-200mm.Preferably, temperature-detecting device is thermocouple temperature sensor.
Preferably, temperature-detecting device stretch into one end in blow length be 10-200mm, preferably 50-150mm,
More preferably 80-100m.That is, temperature-detecting device passes through blow, and one end of temperature-detecting device is located at spray
It blows in cover.
Preferably, combustion gas injection manifold is equipped with 1-10 root combustion gas and is blown branch pipe, preferably 2-8 roots combustion gas injection branch
Pipe.
Preferably, every combustion gas injection tube row is equipped with 2-50 root combustion gas injection tubes, and preferably 3-20 roots combustion gas is blown
Pipe.Preferably, every combustion gas injection tube is equipped with 2-100 combustion gas injection hole, preferably 3-50 combustion gas injection hole.
In the present invention, combustion gas injection tube is that the combustion gas of 2 sections or 2 sections or more is blown casing.Combustion gas injection casing is adopted
With the structure of telescopic tube.Preferably, each section of combustion gas injection casing is equipped with combustion gas injection hole.
In the present invention, which further includes control system.Control system and temperature-detecting device, driving motor,
Cup solenoid valve is connected with rear chamber solenoid valve, and controls the operation of driving motor, cup solenoid valve and rear chamber solenoid valve.
In this application, the total length (or running length of sintering pallet) of sintering pallet is 70-140 meters, preferably
It is 80-130 meters, it is 90-120 meters more preferable.The sum of the length of all trolleys on the total length market value sintering machine of sintering pallet.
In the present invention, outer (straight) diameter of nitrogen pipeline is usually 20-150mm, preferably 30-130mm, preferably 35-
110mm, preferably 40-90mm, more preferable 45-70mm, more preferable 50 or 60mm.
Second of embodiment according to the present utility model provides a kind of combustion gas blowing method：
A kind of combustion gas blowing method, this approach includes the following steps：
1) device brings into operation, and combustion gas blowing device starts to be blown combustion gas, and control system is real-time by temperature-detecting device
Monitor the temperature value T of gas injection blowpipe row top in blow；
2) in real time in monitoring process, if there is peak temperature T in temperature value T1, control system starts timing, as peak temperature T1
Duration t1After setting time t in system, control system judges to have caught fire in blow at this time；
3) control system control driving motor rotates forward, and driving motor divides pull rod and nitrogen point to combustion gas respectively by whole tying rod
Pull rod applies thrust, to drive burnt gas valve and nitrogen valve to rotate so that nitrogen valve quilt while gas lockout valve
It opens；
4) when temperature-detecting device detects that the temperature value T of gas injection blowpipe row top in blow is fallen after rise to normal value
Afterwards or control system starts timing after nitrogen valve opening, is blown when nitrogen valve opening time reaches system default nitrogen
Flyback time t2Afterwards；Control system judges to have put out a fire in blow at this time；
5) control system control driving motor reversion, driving motor divide pull rod and nitrogen point to combustion gas respectively by whole tying rod
Pull rod applies pulling force, to drive burnt gas valve and nitrogen valve to rotate so that nitrogen valve quilt while burnt gas valve is opened
It closes, device continues to produce.
Preferably, in the above method, time t is set in the system as 10-30s, preferably 12-25s, more preferably
15-20s。
Preferably, in the above method, the system default nitrogen purge time t2For 15-60s, preferably 20-40s.
The third embodiment according to the present utility model provides a kind of combustion gas blowing method：
A kind of combustion gas blowing method, this approach includes the following steps：
1) device brings into operation, and combustion gas blowing device starts to be blown combustion gas, and control system is real-time by temperature-detecting device
Monitor the temperature value T of gas injection blowpipe row top in blow；
2) in real time in monitoring process, if there is peak temperature T in temperature value T1, control system starts timing, as peak temperature T1
Duration t1After setting time t in system, control system judges to have caught fire in blow at this time；
3) control system controls the forward and backward room of cylinder point by the cup solenoid valve of cylinder driver with rear chamber solenoid valve
It is not exhausted and intake operation, driving piston plate moves upwards, and then drive whole tying rod divides pull rod and nitrogen to combustion gas respectively
Pull rod is divided to apply thrust, to drive burnt gas valve and nitrogen valve to rotate so that nitrogen valve while gas lockout valve
It is opened；
4) when temperature-detecting device detects that the temperature value T of gas injection blowpipe row top in blow is fallen after rise to normal value
Afterwards or control system starts timing after nitrogen valve opening, is blown when nitrogen valve opening time reaches system default nitrogen
Flyback time t2Afterwards；Control system judges to have put out a fire in blow at this time；
5) control system controls the forward and backward room of cylinder point by the cup solenoid valve of cylinder driver with rear chamber solenoid valve
Not carry out air inlet and bleeding, driving piston plate move downward, and then drive whole tying rod divide pull rod and nitrogen to combustion gas respectively
Pull rod is divided to apply pulling force, to drive burnt gas valve and nitrogen valve to rotate so that nitrogen valve while burnt gas valve is opened
It is closed, device continues to produce.
Preferably, in the above method, time t is set in the system as 10-30s, preferably 12-25s, more preferably
15-20s。
Preferably, in the above method, the system default nitrogen purge time t2For 15-60s, preferably 20-40s.
In the present invention, temperature-detecting device is arranged in blow side.The quantity of temperature-detecting device can be
One or more, when quantity is multiple, temperature-detecting device can be arranged at intervals on spray along sintering pallet traffic direction
Blow the side of cover both sides.Temperature-detecting device (temperature probe) stretches into blow, is located at combustion gas injection tube and arranges top 50-
300mm height and positions, preferably 100-200mm height and positions, convenient for the temperature data in monitoring blow in real time.
In the present invention, the upstream that manifold link positions are blown in connecting tube and combustion gas is arranged in burnt gas valve.Herein
The concept of upstream is when that is, combustion gas is sprayed by combustion gas blowing device, to first pass through burnt gas valve with respect to for fuel gas flow direction,
Then just pass through the link position of connecting tube and combustion gas injection manifold.Setting ensure that burnt gas valve with nitrogen valve respectively in this way
Independent control effect.
(combustion gas and nitrogen) the synchronous control pull rod device includes that combustion gas divides pull rod, nitrogen to divide pull rod, connect cross bar, is total
Pull rod and driving device.Wherein combustion gas divides the handle of pull rod and the burnt gas valve on combustion gas injection manifold closely coupled, nitrogen point
The handle of pull rod and the nitrogen valve in connecting tube is closely coupled.Driving device can be driving motor or cylinder driver etc.
A variety of one kind being capable of providing in the structure of driving force.When driving device is driving motor, by the rotating forward for controlling driving motor
Or invert to push or pull on whole tying rod, to drive (connection cross bar both ends) combustion gas that pull rod and nitrogen is divided to divide pull rod while move
Make, while to realize gas lockout valve (or unlatching), opens the effect of (or closing) nitrogen valve.
When driving device is cylinder driver, piston plate is horizontally set on cylinder interior, cylinder interior is divided into forward and backward
Room, i.e. cup are located at cylinder top, and rear chamber is located at cylinder lower part namely cup is located at rear chamber top.And piston plate and whole tying rod
One end connection.When cylinder driver by cup solenoid valve and rear chamber solenoid valve come control cylinder cup exhaust, cylinder after
When the air inlet of room, piston plate is forced to move upwards, and then whole tying rod is driven to divide pull rod to (connection cross bar both ends) combustion gas respectively
Pull rod is divided to apply thrust with nitrogen, to drive the handle of burnt gas valve and nitrogen valve to rotate so that gas lockout valve
Nitrogen valve is opened simultaneously；When cylinder driver by cup solenoid valve and rear chamber solenoid valve come control cylinder cup into
When gas, the exhaust of cylinder rear chamber, piston plate is forced to move downward, and then drives whole tying rod respectively to (connection cross bar both ends) combustion
Qi leel pull rod and nitrogen divide pull rod to apply pulling force, to drive the handle of burnt gas valve and nitrogen valve to rotate so that gas valve
Nitrogen valve is closed while door is opened.The setting of (combustion gas and nitrogen) synchronous control pull rod device so that in blow
Combustion gas progress synchronous with nitrogen purging is cut off in the case of fire, the two is substantially not present the time difference, can control to the maximum extent
Tempering of the combustion gas in pipeline generated due to the time difference.
The utility model proposes a kind of curves changed over time according to injection case temperature quickly to judge case of fire
Method, principle is as follows：
It is cold conditions in the lower blow of normal production, combustion gas injection tube row top temperature should be stable straight line, that is, maintain ring
Border is temperature-resistant；When sintering charge level has the localized hyperthermias such as mouse hole, large fracture point by blow, on combustion gas injection tube row
Fang Wendu has the fluctuation of short time peak value, and after high temperature dot is passed by, temperature curve returns normal；And works as combustion gas in blow and
When fiery, combustion gas injection tube row top temperature is linear ramps to peak temperature, and maintain near peak temperature will not under
Drop.The utility model proposes two conditions for judging to catch fire in blow as a result, is：There is peak temperature and peak temperature continues
Time.Only when both of which reaches requirement, can be regarded as catching fire in blow.That is, only temperature-detecting device is supervised in real time
During survey, detect that peak temperature T occurs in temperature value T1, and peak temperature T1Duration t1More than setting time t in system
After (the peak temperature duration for having arrived the standard of catching fire), control system just judges to have caught fire in blow at this time.System
Time t is set in system to be set according to knowhow and produced on-site situation.Generally, time t is set in system as 10-30s, preferably
For 12-25s, more preferably 15-20s.
Under normal circumstances, peak temperature T1It is different and different according to gas families.The corresponding peak temperature T of several combustion gas1
It is shown in Table 1.
The corresponding peak temperature T of 1 several combustion gas of table1
| Gas families | Coke-stove gas | Blast furnace gas | Coal gas of converter | Natural gas |
| Peak temperature T1/℃ | 400 | 300 | 350 | 500 |
In addition, after nitrogen purges, control system the link for judging whether to have put out a fire in blow can there are two types of
Operation mode.One is judged according to temperature conditions in blow：When the temperature of gas injection blowpipe row top in blow
When being fallen after rise to normal value by peak temperature, control system can determine whether to have put out a fire in blow.Another kind is held according to nitrogen purging
The continuous time is judged：Control system starts timing after nitrogen valve opening, and the acquiescence nitrogen purging duration reaches t2
All pipe rows have put out a fire in blow afterwards, have the condition for continuing production.Under normal circumstances, system default nitrogen purge time t2
For 15-60s, preferably 20-40s.
Compared with prior art, the utility model has the advantages that：
1, the energy is effectively saved：Since the utility model technology by the way of monitoring in advance, in blow combustion gas catch fire
First time can be by system discovery, and a full set is carried out by specific device and is stopped the supple of gas or steam fire extinguishing --- the adaptive behaviour that bleed produces
Make, the whole series operation quickly, it is accurate, effectively prevent combustion gas and burn in blow the energy waste of formation；
2, extend equipment life：After utility model device and method, due to catch fire in blow can first when
Between obtain control process, therefore there is no because causing what the service life shortened to ask by high temperature baking for a long time for the equipment such as combustion gas injection tube row
Topic；
3, safety coefficient is improved：Since the utility model uses specific device, nitrogen valve and burnt gas valve to act simultaneously,
Therefore effectively prevent closing gas valve behind the door, for a long time without combustion gas tempering phenomenon caused by purging nitrogen, to improve life
The safety coefficient of production.
In conclusion by using the utility model technology, the associated disadvantages of the prior art can be effectively solved, improve device
Adaptability and degree of freedom.The prior art that compares is relatively reliable, safety and stablization, it is anticipated that it has huge in future market
Development potentiality.
Description of the drawings
Fig. 1 is the injection case temperature time history plot under nominal situation；
Fig. 2 is the injection case temperature time history plot under short time unusual service condition；
Fig. 3 is the injection case temperature time history plot under unusual service condition；
Fig. 4 is the vertical view of the utility model combustion gas blowing device；
Fig. 5 is the sectional view of the positions A-A in Fig. 4；
Fig. 6 is the sectional view of the positions B-B in Fig. 4；
Fig. 7 is a kind of structural schematic diagram of design of the utility model synchronous control pull rod device；
Fig. 8 is the enlarged drawing of location of C in Fig. 7；
Fig. 9 is the structural schematic diagram that the utility model combustion gas injection tube is 3 gas fuel savings injection casing；
Figure 10 is the control system schematic diagram of the utility model；
Figure 11 is a kind of flow chart of combustion gas blowing method of the utility model；
Figure 12 is the flow chart of the utility model another kind combustion gas blowing method；
Figure 13 is the flow chart of the third combustion gas blowing method of the utility model；
Figure 14 is the flow chart of the 4th kind of combustion gas blowing method of the utility model.
Reference numeral：1：Sintering pallet；2：Seal closure；3：Combustion gas blowing device；301：Combustion gas is blown manifold；302：Combustion
Branch pipe is blown in gas blowout；303：Combustion gas injection tube is arranged；304：Combustion gas injection tube；305：Combustion gas injection hole；306：(Multi-section retractable) fires
Casing is blown in gas blowout；4：Temperature-detecting device；5：Nitrogen pipeline；6：Connecting tube；7：Nitrogen valve；8：Burnt gas valve；9：Synchronous control
Pull rod device processed；901：Combustion gas divides pull rod；902：Nitrogen divides pull rod；903：Connect cross bar；904：Whole tying rod；905：Driving electricity
Machine；906：Cylinder driver；90601：Cylinder；90602：Piston plate；90603：Cup air inlet pipe；90604：Cup electromagnetism
Valve；90605：Rear chamber air inlet pipe；90606：Rear chamber solenoid valve；10：Control system.
Specific implementation mode
The first embodiment scheme according to the present utility model, provides a kind of combustion gas blowing device：
A kind of combustion gas blowing device, the device include sintering pallet 1, blow 2, combustion gas blowing device 3.Combustion gas is blown
Device 3 includes combustion gas injection manifold 301, combustion gas injection branch pipe 302, combustion gas injection tube row 303.Sintering pallet 1 is located at injection
In cover 2.Combustion gas injection manifold 301 is arranged in the outside of blow 2.Combustion gas injection tube row 303 is arranged in the upper of sintering pallet 1
Side, and combustion gas injection tube row 303 is located in blow 2.Combustion gas is blown branch pipe 302 one end connection combustion gas injection manifold 301 and another
One end connects combustion gas injection tube row 303.The device further includes the nitrogen pipeline 5 being arranged in 301 sides combustion gas injection manifold.Nitrogen
Pipeline 5 is blown manifold 301 with combustion gas by connecting tube 6 and connect.
In the present invention, which further includes the temperature-detecting device 4 being arranged in 2 side of blow.Temperature detection
Device 4 stretches into blow 2 and positioned at the top of combustion gas injection tube row 303.
Preferably, connecting tube 6 is equipped with nitrogen valve 7.
Preferably, combustion gas injection manifold 301 is equipped with burnt gas valve 8.Burnt gas valve 8 is arranged in connecting tube 6 and combustion gas
It is blown the upstream of 301 link positions of manifold.
In the present invention, which further includes sync control device, and sync control device connects and controls nitrogen valve
Door 7 and burnt gas valve 8.Preferably, sync control device is synchronous control pull rod device 9.Synchronous control pull rod device 9 includes
Combustion gas divides pull rod 901, nitrogen to divide pull rod 902, connection cross bar 903, whole tying rod 904 and driving device.Wherein combustion gas divides pull rod 901
It is connect with burnt gas valve 8.Nitrogen divides pull rod 902 to be connect with nitrogen valve 7.One end of whole tying rod 904 is divided by connecting cross bar 903
Not dividing pull rod 901 and nitrogen to divide with combustion gas, pull rod 902 is connect and the other end of whole tying rod 904 is connect with driving device.
In the present invention, the driving device is driving motor 905 or cylinder driver 906.
Preferably, cylinder driver 906 include cylinder 90601, it is piston plate 90602, cup air inlet pipe 90603, preceding
Room solenoid valve 90604, rear chamber air inlet pipe 90605 and rear chamber solenoid valve 90606.Wherein piston plate 90602 is located in cylinder 90601
Portion will be divided into forward and backward room inside cylinder 90601.Cup air inlet pipe 90603 connect and communicates with 90601 cup of cylinder.Cup electricity
Magnet valve 90604 is connect with cup air inlet pipe 90603.Rear chamber air inlet pipe 90605 connect and communicates with 90601 rear chamber of cylinder.Rear chamber
Solenoid valve 90606 is connect with rear chamber air inlet pipe 90605.And piston plate 90602 is connect with one end of whole tying rod 904.
Preferably, piston plate 90602 is horizontally set on inside cylinder 90601, and whole tying rod 904 hangs down with piston plate 90602
It is direct-connected to connect.
Preferably, the temperature-detecting device 4 stretches into one end in blow 2 at a distance from combustion gas injection tube row 303
For 50-300mm, preferably 100-200mm.Preferably, temperature-detecting device 4 is thermocouple temperature sensor.
Preferably, the length that temperature-detecting device 4 stretches into one end in blow 2 is 10-200mm, preferably 50-
150mm, more preferably 80-100m.
Preferably, combustion gas injection manifold 301 is equipped with 1-10 root combustion gas and is blown branch pipe 302, preferably 2-8 roots gas injection
Blow branch pipe 302.
Preferably, every combustion gas injection tube row 303 is equipped with 2-50 root combustion gas injection tube 304, and preferably 3-20 roots fire
Gas blowout blowpipe 304.Preferably, every combustion gas injection tube 304 is equipped with 2-100 combustion gas injection hole 305, and preferably 3-50 is a
Combustion gas injection hole 305.
In the present invention, combustion gas injection tube 304 is that the combustion gas of 2 sections or 2 sections or more is blown casing 306.Combustion gas is blown
Casing 306 uses the structure of telescopic tube.Preferably, each section of combustion gas injection casing 306 is equipped with combustion gas injection hole
305。
In the present invention, which further includes control system 10.Control system 10 and temperature-detecting device 4, driving
Motor 905, cup solenoid valve 90604 and rear chamber solenoid valve 90606 connect, and control driving motor 905, cup solenoid valve
90604 and rear chamber solenoid valve 90606 operation.
In this application, the total length (or running length of sintering pallet) of sintering pallet is 70-140 meters, preferably
It is 80-130 meters, it is 90-120 meters more preferable.The sum of the length of all trolleys on the total length market value sintering machine of sintering pallet.
In the present invention, outer (straight) diameter of nitrogen pipeline is usually 20-150mm, preferably 30-130mm, preferably 35-
110mm, preferably 40-90mm, more preferable 45-70mm, more preferable 50 or 60mm.
Embodiment 1
As shown in figure 5, a kind of combustion gas blowing device, which includes sintering pallet 1, blow 2, combustion gas blowing device
3.Combustion gas blowing device 3 includes combustion gas injection manifold 301, combustion gas injection branch pipe 302, combustion gas injection tube row 303.Sintering pallet
1 is located in blow 2.Combustion gas injection manifold 301 is arranged in the outside of blow 2.Combustion gas injection tube row 303 is arranged in sintering machine
The top of trolley 1, and combustion gas injection tube row 303 is located in blow 2.It is total that combustion gas is blown the connection combustion gas injection of 302 one end of branch pipe
Pipe 301 connects combustion gas injection tube row 303 with the other end.Combustion gas injection tube row 303 includes more combustion gas injection tubes 304, gas injection
Blowpipe 304 is equipped with combustion gas injection hole 305.The device further includes the temperature-detecting device 4 being arranged in 2 side of blow.Temperature
Detection device 4 stretches into blow 2 and positioned at the top of combustion gas injection tube row 303.The temperature-detecting device 4 stretches into blow
One end in 2 is 100mm at a distance from combustion gas injection tube row 303.Temperature-detecting device 4 is thermocouple temperature sensor.Temperature
The length that detection device 4 stretches into one end in blow 2 is 80mm.Total length (or the operation of sintering pallet of sintering pallet
Length) it is 100 meters.
As shown in figs. 4 and 6, which further includes the nitrogen pipeline 5 being arranged above combustion gas injection manifold 301.Nitrogen tube
Road 5 is blown manifold 301 with combustion gas by connecting tube 6 and connect.Connecting tube 6 is equipped with nitrogen valve 7.Combustion gas is blown on manifold 301
Equipped with burnt gas valve 8.The upstream that 301 link positions of manifold are blown in connecting tube 6 and combustion gas is arranged in burnt gas valve 8.The device is also
Including sync control device, sync control device is synchronous control pull rod device 9.Synchronous control pull rod device 9 includes combustion gas point
Pull rod 901, nitrogen divide pull rod 902, connection cross bar 903, whole tying rod 904 and driving device.Wherein combustion gas divides pull rod 901 and combustion gas
Valve 8 connects.Nitrogen divides pull rod 902 to be connect with nitrogen valve 7.One end of whole tying rod 904 by connect cross bar 903 respectively with combustion
Qi leel pull rod 901 and nitrogen divide the other end of the connection of pull rod 902 and whole tying rod 904 to be connect with driving device.The driving device
For driving motor 905.
As shown in figure 9, the combustion gas that combustion gas injection tube 304 is 3 sections is blown casing 306.Combustion gas is blown casing 306 using flexible
The structure of formula casing.Each section that combustion gas is blown casing 306 is equipped with combustion gas injection hole 305.
Combustion gas is blown manifold 301 and is equipped with 3 combustion gas injection branch pipes 302.Every combustion gas injection tube row 303 is equipped with 8
Combustion gas injection tube 304.Every combustion gas injection tube 304 is equipped with 5 combustion gas injection holes 305.
The device further includes control system 10.Control system 10 connect with temperature-detecting device 4, driving motor 905, and controls
The operation of driving motor 905 processed.
Embodiment 2
As shown in FIG. 7 and 8, embodiment 1 is repeated, only the driving device is cylinder driver 906.Cylinder driving dress
It includes cylinder 90601, piston plate 90602, cup air inlet pipe 90603, cup solenoid valve 90604, rear chamber air inlet pipe to set 906
90605 and rear chamber solenoid valve 90606.Wherein piston plate 90602 is located inside cylinder 90601, will be divided into inside cylinder 90601
Forward and backward room.Cup air inlet pipe 90603 connect and communicates with 90601 cup of cylinder.Cup solenoid valve 90604 and cup air inlet pipe
90603 connections.Rear chamber air inlet pipe 90605 connect and communicates with 90601 rear chamber of cylinder.Rear chamber solenoid valve 90606 and rear chamber air inlet
Pipe 90605 connects.Piston plate 90602 is connect with one end of whole tying rod 904.Piston plate 90602 is horizontally set in cylinder 90601
Portion, whole tying rod 904 and 90602 vertical connection of piston plate.
The control system 10 is connect with temperature-detecting device 4, cup solenoid valve 90604 and rear chamber solenoid valve 90606, and
Control the operation of cup solenoid valve 90604 and rear chamber solenoid valve 90606.
Embodiment 3
Embodiment 2 is repeated, only the temperature-detecting device 4 stretches into one end in blow 2 and arranges 303 with combustion gas injection tube
Distance be 200mm.The length that temperature-detecting device 4 stretches into one end in blow 2 is 40mm.
Embodiment 4
A kind of combustion gas blowing method, using the device in embodiment 1, this approach includes the following steps：
1) device brings into operation, and combustion gas blowing device 3 starts to be blown combustion gas, and control system 10 passes through temperature-detecting device 4
Temperature value T in monitoring blow 2 above gas injection blowpipe row 303 in real time；
2) in real time in monitoring process, if there is peak temperature T in temperature value T1, control system 10 starts timing, when peak value temperature
Spend T1Duration t1After setting time t in system, control system 10 judges to have caught fire in blow 2 at this time；
3) control system 10 controls driving motor 905 and rotates forward, and driving motor 905 is by whole tying rod 904 respectively to combustion gas point
Pull rod 901 and nitrogen divide pull rod 902 to apply thrust, to drive burnt gas valve 8 and nitrogen valve 7 to rotate so that burnt gas valve 8
Nitrogen valve 7 is opened while closing；
4) when temperature-detecting device 4 detects that the temperature value T of 303 top of gas injection blowpipe row in blow 2 is fallen after rise to just
After constant value, control system 10 judges to have put out a fire in blow 2 at this time；
5) control system 10 controls driving motor 905 and inverts, and driving motor 905 is by whole tying rod 904 respectively to combustion gas point
Pull rod 901 and nitrogen divide pull rod 902 to apply pulling force, to drive burnt gas valve 8 and nitrogen valve 7 to rotate so that burnt gas valve 8
Nitrogen valve 7 is closed while unlatching, and device continues to produce.
Time t is set in system as 15s.
Embodiment 5
A kind of combustion gas blowing method, using the device in embodiment 1, this approach includes the following steps：
1) device brings into operation, and combustion gas blowing device 3 starts to be blown combustion gas, and control system 10 passes through temperature-detecting device 4
Temperature value T in monitoring blow 2 above gas injection blowpipe row 303 in real time；
2) in real time in monitoring process, if there is peak temperature T in temperature value T1, control system 10 starts timing, when peak value temperature
Spend T1Duration t1After setting time t in system, control system 10 judges to have caught fire in blow 2 at this time；
3) control system 10 controls driving motor 905 and rotates forward, and driving motor 905 is by whole tying rod 904 respectively to combustion gas point
Pull rod 901 and nitrogen divide pull rod 902 to apply thrust, to drive burnt gas valve 8 and nitrogen valve 7 to rotate so that burnt gas valve 8
Nitrogen valve 7 is opened while closing；
4) control system 10 starts timing after nitrogen valve 7 is opened, and writes from memory when nitrogen valve opening time reaches system
Recognize nitrogen purge time t2Afterwards, control system 10 judges to have put out a fire in blow 2 at this time；
5) control system 10 controls driving motor 905 and inverts, and driving motor 905 is by whole tying rod 904 respectively to combustion gas point
Pull rod 901 and nitrogen divide pull rod 902 to apply pulling force, to drive burnt gas valve 8 and nitrogen valve 7 to rotate so that burnt gas valve 8
Nitrogen valve 7 is closed while unlatching, and device continues to produce.
Time t is set in system as 15s.System default nitrogen purge time t2For 30s.
Embodiment 6
A kind of combustion gas blowing method, using the device in embodiment 2, this approach includes the following steps：
1) device brings into operation, and combustion gas blowing device 3 starts to be blown combustion gas, and control system 10 passes through temperature-detecting device 4
Temperature value T in monitoring blow 2 above gas injection blowpipe row 303 in real time；
2) in real time in monitoring process, if there is peak temperature T in temperature value T1, control system 10 starts timing, when peak value temperature
Spend T1Duration t1After setting time t in system, control system 10 judges to have caught fire in blow 2 at this time；
3) control system 10 is controlled by the cup solenoid valve 90604 of cylinder driver 906 with rear chamber solenoid valve 90606
90601 forward and backward room of cylinder processed is exhausted respectively and intake operation, and driving piston plate 90602 moves upwards, and then drives total draw
Bar 904 divides pull rod 901 and nitrogen that pull rod 902 is divided to apply thrust combustion gas respectively, to drive burnt gas valve 8 and nitrogen valve 7
Rotation so that nitrogen valve 7 is opened while burnt gas valve 8 is closed；
4) when temperature-detecting device 4 detects that the temperature value T of 303 top of gas injection blowpipe row in blow 2 is fallen after rise to just
After constant value, control system 10 judges to have put out a fire in blow 2 at this time；
5) control system 10 is controlled by the cup solenoid valve 90604 of cylinder driver 906 with rear chamber solenoid valve 90606
90601 forward and backward room of cylinder processed carries out air inlet and bleeding respectively, and driving piston plate 90602 moves downward, and then drives total draw
Bar 904 divides pull rod 901 and nitrogen that pull rod 902 is divided to apply pulling force combustion gas respectively, to drive burnt gas valve 8 and nitrogen valve 7
Rotation so that nitrogen valve 7 is closed while burnt gas valve 8 is opened, and device continues to produce.
Time t is set in system as 20s.
Embodiment 7
A kind of combustion gas blowing method, using the device in embodiment 2, this approach includes the following steps：
1) device brings into operation, and combustion gas blowing device 3 starts to be blown combustion gas, and control system 10 passes through temperature-detecting device 4
Temperature value T in monitoring blow 2 above gas injection blowpipe row 303 in real time；
2) in real time in monitoring process, if there is peak temperature T in temperature value T1, control system 10 starts timing, when peak value temperature
Spend T1Duration t1After setting time t in system, control system 10 judges to have caught fire in blow 2 at this time；
3) control system 10 is controlled by the cup solenoid valve 90604 of cylinder driver 906 with rear chamber solenoid valve 90606
90601 forward and backward room of cylinder processed is exhausted respectively and intake operation, and driving piston plate 90602 moves upwards, and then drives total draw
Bar 904 divides pull rod 901 and nitrogen that pull rod 902 is divided to apply thrust combustion gas respectively, to drive burnt gas valve 8 and nitrogen valve 7
Rotation so that nitrogen valve 7 is opened while burnt gas valve 8 is closed；
4) control system 10 starts timing after nitrogen valve 7 is opened, and writes from memory when nitrogen valve opening time reaches system
Recognize nitrogen purge time t2Afterwards, control system 10 judges to have put out a fire in blow 2 at this time；
5) control system 10 is controlled by the cup solenoid valve 90604 of cylinder driver 906 with rear chamber solenoid valve 90606
90601 forward and backward room of cylinder processed carries out air inlet and bleeding respectively, and driving piston plate 90602 moves downward, and then drives total draw
Bar 904 divides pull rod 901 and nitrogen that pull rod 902 is divided to apply pulling force combustion gas respectively, to drive burnt gas valve 8 and nitrogen valve 7
Rotation so that nitrogen valve 7 is closed while burnt gas valve 8 is opened, and device continues to produce.
Time t is set in system as 20s.System default nitrogen purge time t2For 30s.
Claims (15)
1. a kind of combustion gas blowing device, which includes sintering pallet (1), blow (2), combustion gas blowing device (3), combustion gas
Blowing device (3) includes combustion gas injection manifold (301), combustion gas injection branch pipe (302), combustion gas injection tube row (303), is sintered board
Vehicle (1) is located in blow (2), and combustion gas is blown manifold (301) and is arranged in the outside of blow (2), and combustion gas injection tube arranges (303)
Top in sintering pallet (1) is set, and combustion gas injection tube row (303) is located in blow (2), combustion gas is blown branch pipe
(302) one end connection combustion gas injection manifold (301) connects combustion gas injection tube row (303) with the other end；It is characterized in that：The device
Further include the nitrogen pipeline (5) that setting is blown manifold (301) side in combustion gas, nitrogen pipeline (5) passes through connecting tube (6) and combustion gas
Manifold (301) is blown to connect；
Wherein：The total length of sintering pallet (1) is 70-140 meters.
2. combustion gas blowing device according to claim 1, it is characterised in that：The device further includes being arranged in blow (2)
The temperature-detecting device (4) of side, temperature-detecting device (4) stretch into blow (2) and positioned at combustion gas injection tube row's (303)
Top；And/or
Connecting tube (6) is equipped with nitrogen valve (7)；And/or
Combustion gas is blown manifold (301) and is equipped with burnt gas valve (8), and burnt gas valve (8) setting is total in connecting tube (6) and combustion gas injection
Manage the upstream of (301) link position.
3. combustion gas blowing device according to claim 2, it is characterised in that：The device further includes sync control device, together
Step control device connects and controls nitrogen valve (7) and burnt gas valve (8).
4. combustion gas blowing device according to claim 3, it is characterised in that：Sync control device fills for synchronous control pull rod
It sets (9), synchronous control pull rod device (9) includes that combustion gas divides pull rod (901), nitrogen to divide pull rod (902), connect cross bar (903), is total
Pull rod (904) and driving device, wherein combustion gas divide pull rod (901) to be connect with burnt gas valve (8), and nitrogen divides pull rod (902) and nitrogen
Air valve (7) connects, and pull rod (901) and nitrogen point are divided in one end of whole tying rod (904) with combustion gas respectively by connecting cross bar (903)
Pull rod (902) connects and the other end of whole tying rod (904) is connect with driving device.
5. combustion gas blowing device according to claim 4, it is characterised in that：The driving device is driving motor (905)
Or cylinder driver (906).
6. combustion gas blowing device according to claim 5, it is characterised in that：The cylinder driver (906) includes gas
Cylinder (90601), piston plate (90602), cup air inlet pipe (90603), cup solenoid valve (90604), rear chamber air inlet pipe (90605)
With rear chamber solenoid valve (90606)；Wherein piston plate (90602) is located at cylinder (90601) inside, by cylinder (90601) inside points
For forward and backward room；Cup air inlet pipe (90603) connect and communicates with cylinder (90601) cup, and cup solenoid valve (90604) is with before
Room air inlet pipe (90603) connects, and rear chamber air inlet pipe (90605) connect and communicates, rear chamber solenoid valve with cylinder (90601) rear chamber
(90606) it is connect with rear chamber air inlet pipe (90605), and piston plate (90602) is connect with one end of whole tying rod (904).
7. combustion gas blowing device according to claim 6, it is characterised in that：Piston plate (90602) is horizontally set on cylinder
(90601) internal, whole tying rod (904) and piston plate (90602) vertical connection.
8. the combustion gas blowing device according to any one of claim 2-7, it is characterised in that：The temperature-detecting device
(4) it is 50-300mm at a distance from combustion gas injection tube row (303) to stretch into one end in blow (2)；Temperature-detecting device (4) is
Thermocouple temperature sensor；And/or
The length that temperature-detecting device (4) stretches into blow (2) interior one end is 10-200mm.
9. combustion gas blowing device according to claim 8, it is characterised in that：The temperature-detecting device (4) stretches into injection
It is 100-200mm at a distance from combustion gas injection tube row (303) to cover one end in (2)；And/or
The length that temperature-detecting device (4) stretches into blow (2) interior one end is 50-150mm.
10. the combustion gas blowing device according to claim 1-7, any one of 9, it is characterised in that：
Combustion gas is blown manifold (301) and is equipped with 1-10 root combustion gas injection branch pipe (302)；And/or
Every combustion gas injection tube row (303) is equipped with 2-50 root combustion gas injection tubes (304)；It is set on every combustion gas injection tube (304)
There is 2-100 combustion gas injection hole (305).
11. combustion gas blowing device according to claim 8, it is characterised in that：
Combustion gas is blown manifold (301) and is equipped with 1-10 root combustion gas injection branch pipe (302)；And/or
Every combustion gas injection tube row (303) is equipped with 2-50 root combustion gas injection tubes (304)；It is set on every combustion gas injection tube (304)
There is 2-100 combustion gas injection hole (305).
12. combustion gas blowing device according to claim 10, it is characterised in that：
Combustion gas is blown manifold (301) and is equipped with 2-8 root combustion gas injection branch pipe (302)；And/or
Every combustion gas injection tube row (303) is equipped with 3-20 root combustion gas injection tubes (304)；It is set on every combustion gas injection tube (304)
There is 3-50 combustion gas injection hole (305)；And/or
Combustion gas injection tube (304) is blown casing (306) for combustion gas more than 2 sections or 2 sections, and combustion gas injection casing (306), which uses, to be stretched
The structure of contracting formula casing.
13. combustion gas blowing device according to claim 11, it is characterised in that：
Combustion gas is blown manifold (301) and is equipped with 2-8 root combustion gas injection branch pipe (302)；And/or
Every combustion gas injection tube row (303) is equipped with 3-20 root combustion gas injection tubes (304)；It is set on every combustion gas injection tube (304)
There is 3-50 combustion gas injection hole (305)；And/or
Combustion gas injection tube (304) is blown casing (306) for combustion gas more than 2 sections or 2 sections, and combustion gas injection casing (306), which uses, to be stretched
The structure of contracting formula casing.
14. combustion gas blowing device according to claim 12 or 13, it is characterised in that：Combustion gas is blown the every of casing (306)
One section is equipped with combustion gas injection hole (305).
15. the combustion gas blowing device described according to claim 6 or 7, it is characterised in that：The device further includes control system
(10), control system (10) and temperature-detecting device (4), driving motor (905), cup solenoid valve (90604) and rear chamber electromagnetism
Valve (90606) connects, and controls the operation of driving motor (905), cup solenoid valve (90604) and rear chamber solenoid valve (90606).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721578138.5U CN207845724U (en) | 2017-11-23 | 2017-11-23 | A kind of combustion gas blowing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721578138.5U CN207845724U (en) | 2017-11-23 | 2017-11-23 | A kind of combustion gas blowing device |
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| CN207845724U true CN207845724U (en) | 2018-09-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110564952A (en) * | 2019-09-09 | 2019-12-13 | 中南大学 | Sintering energy-saving emission-reducing hydrogen-based fuel gas staged injection method |
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2017
- 2017-11-23 CN CN201721578138.5U patent/CN207845724U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110564952A (en) * | 2019-09-09 | 2019-12-13 | 中南大学 | Sintering energy-saving emission-reducing hydrogen-based fuel gas staged injection method |
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