CN106987282A - A kind of gasification furnace four-way ignition system and operation method - Google Patents
A kind of gasification furnace four-way ignition system and operation method Download PDFInfo
- Publication number
- CN106987282A CN106987282A CN201710311778.8A CN201710311778A CN106987282A CN 106987282 A CN106987282 A CN 106987282A CN 201710311778 A CN201710311778 A CN 201710311778A CN 106987282 A CN106987282 A CN 106987282A
- Authority
- CN
- China
- Prior art keywords
- oxygen
- passage
- fuel gas
- burner
- igniting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2200/00—Details of gasification apparatus
- C10J2200/09—Mechanical details of gasifiers not otherwise provided for, e.g. sealing means
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/093—Coal
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
Abstract
The present invention relates to a kind of gasification furnace four-way ignition system, the ignition system includes burner and the igniting unit being connected respectively with the burner and four passages, and four passages include main oxygen and igniting oxygen passage, central oxygen passage, fuel gas passageway and water-coal-slurry passage.The gasification furnace four-way ignition system is made improvements by the pipeline passway being connected to burner and with burner, the ignition oven and operation phase for avoiding gasification furnace are carried out by changing mouth, the pipeline passway being connected simultaneously with burner, which is set, make it that gasification furnace overall operation is more steady, is easy to automation mechanized operation.The invention further relates to a kind of operation method of gasification furnace four-way ignition system.
Description
Technical field
The present invention relates to coal slurry gasifier equipment technical field, and in particular to a kind of gasification furnace four-way ignition system and
Operation method.
Background technology
The efficient and clean utilization of coal is always the important topic in Environmental Protection in China and energy field, is also influence China one
One of key technology of secondary energy proportion structure.Coal gasification is one of main application of current coal in China, is by primary energy
It is converted into the main path of more clean secondary energy sources.The pressurized gasification technology of water-coal-slurry, is exactly with oxidant and water-coal-slurry
The reactor of air flow bed is sprayed to very high speed after process burner is mixed, in the incomplete oxidation of high temperature and high pressure
In the case of be converted into effective gas for carbon monoxide, the synthesis gas of hydrogen, be the side that the Coal Clean generally acknowledged in the world today is used
One of formula.
In the state of the art, baker and coal slurry the input stage of coal slurry gasifier generally use two respectively
Burner is carried out：Ignition oven burner baker is first used, after furnace temperature reaches preparatory condition, baker burner is pulled down, is loaded on coal slurry
Run burner (process burner) and carry out coal gasification operation.Its shortcoming is to change the inconvenience of mouth process, and the time of putting into operation is longer, and mouth is changed in addition
Process is dangerous, easily causes potential safety hazard.
Application publication number is related to a kind of water with long period service life for CN 101709229A Chinese patent literature
Coal slurry process burner and its processing method.The process burner by be coaxially nested with the interior burner with streamlined preceding closing in end, in
Burner and outer burner are constituted, wherein, wear-resistant coating is coated with respectively in the middle burner internal face and outer burner outside wall surface, is led to
Cross spraying of wearable coating and improve performance of the process burner under its bad working environments.The program is only carried in itself to process burner
Go out to improve, gasification furnace ignition oven and operating mechanism are not solved fundamentally, be still unavoidable from changing mouth process and bring not
Just and safety problem.
The Chinese patent literature that application publication number is CN 105647586A is related to a kind of for water-coal-slurry cold wall gasification furnace
Igniter.The burner of the technical scheme is still divided into process burner and igniting startup burner so that gasification furnace structure is more complicated.
To sum up, it is improved there is a need in the art for ignition system and burner to existing coal slurry gasifier, it is to avoid
Existing gasification furnace changes inconvenience and the safety problem that mouth process is brought, while so that the ignition oven of gasification furnace and operation are more put down
Surely, operation facility.
The content of the invention
It is an object of the invention to solve above-mentioned the deficiencies in the prior art to light a fire there is provided a kind of gasification furnace four-way
System and operation method, the gasification furnace four-way ignition system is made by the pipeline passway being connected to burner and with burner to be changed
Enter, it is to avoid the ignition oven of gasification furnace and operation phase are carried out by changing mouth, while the pipeline passway being connected with burner is set
Put so that gasification furnace overall operation is more steady, be easy to automation mechanized operation.
To achieve the above object, the invention provides a kind of gasification furnace four-way ignition system, the ignition system includes
Burner and the igniting unit being connected respectively with the burner and four passages, four passages include main oxygen and igniting oxygen leads to
Road, central oxygen passage, fuel gas passageway and water-coal-slurry passage, wherein, the main oxygen and igniting oxygen passage include main oxygen passage and
The igniting oxygen pipeline bridged on main oxygen passage, the head end of igniting oxygen pipeline and end are all located on main oxygen passage；The center
Oxygen passage is separated from main oxygen passage, and the head end of central oxygen passage is located on main oxygen passage, the end of central oxygen passage with
Main oxygen channel end is connected to burner.
The above main oxygen is also referred to as outer epoxy；The igniting oxygen is also used for baker, therefore also referred to as ignition oven oxygen.
Further, the burner is four-way burner, and four passages in the burner are same from burner center to edge
The heart is set, and four passages from burner center to edge are respectively connecting to central oxygen passage, fuel gas passageway, water-coal-slurry passage
And main oxygen and igniting oxygen passage.In one embodiment, four passages in the burner are same from burner center to edge
The heart is set, and four passages from burner center to edge are respectively connecting to fuel gas passageway, central oxygen passage, water-coal-slurry passage
And main oxygen and igniting oxygen passage.
Further, there is nitrogen respectively on the main oxygen passage, igniting oxygen pipeline, central oxygen passage and fuel gas passageway
Protective separation device, the nitrogen protective separation device include being connected to nitrogen protection circuit on above-mentioned passage or pipeline and
It is located on above-mentioned passage or pipeline and respectively two stop valves of corresponding nitrogen protection circuit both sides, wherein, the nitrogen is protected
Protecting also has stop valve on circuit.
Further, the main oxygen passage, igniting oxygen pipeline and fuel gas passageway on nitrogen protective separation device it
Preceding have an emptying device respectively, and the emptying device includes the emptying circuit that is connected on above-mentioned passage or pipeline and described put
Emptying stop valve on ceases to be busy road.
Further, the main oxygen passage, igniting oxygen pipeline and fuel gas passageway on emptying device before respectively according to
It is secondary that there is regulating valve and flowmeter；There is flowmeter and regulation successively after two stop valves on the central oxygen passage
Valve.
Further, on the igniting oxygen pipeline and fuel gas passageway, the regulating valve and flowmeter are respectively adopted two
Group mode in parallel is set.Wherein every two groups of regulating valves in parallel are divided into the regulating valve of two kinds of flow control of size, with right respectively
It should light a fire and baker program.For example, igniting oxygen valve and fuel gas regulating valve of the ignition procedure using Small Flow Control；Baker
Baker oxygen valve and fuel gas regulating valve that program is controlled using big flow.
Further, also have respectively after the nitrogen protective separation device on main the oxygen passage and fuel gas passageway
One the nitrogen being connected on main oxygen passage and fuel gas passageway purges circuit；Apart from the distal end of burner on the main oxygen passage
Also there is the total stop valve of oxygen.
Further, the water-coal-slurry passage includes water-coal-slurry recycle circuit, two two stop valves and nitrogen guarantor successively
Circuit is protected, burner is then attached to.Water-coal-slurry circulating valve is carried on the water-coal-slurry recycle circuit, after unlatching water-coal-slurry is existed
Circulated on water-coal-slurry recycle circuit.
Further, the igniting unit includes ignition coil, fire rod propulsion cylinder and fire rod successively, then connects
To burner.In one embodiment, fire rod is stretched under the driving of fire rod propulsion cylinder in the central oxygen passage of burner.
In ignition procedure, fire rod is promoted by fire rod propulsion cylinder and moves down certain distance, then passes to fuel gas and oxygen,
Ignition coil is struck sparks, after fire is lighted, ignition coil power-off, and fire rod is retracted in situ.
Further, the gasification furnace four-way ignition system also includes the flame detection unit by burner, the flame
Detection unit includes flame interlock, two stop valves of flame detector and sense channel being sequentially connected, and is then attached to
Gasification furnace.In one embodiment, above-mentioned two stop valves of sense channel are configured so that remote manual control before ignition
Open, closed automatically after gasification furnace pressure is raised to 1.0MPa.In one embodiment, the flame detection unit is two
Group；In another embodiment, the flame detection unit is automatic flame detection unit, and also carries camera monitor system
System.
Present invention also offers a kind of operation method of gasification furnace four-way ignition system, methods described includes ignition oven
Step, coal slurry material addition step and fuel gas exit step, wherein,
The ignition oven step includes：
The emptying stop valve that circuit is vented on fuel gas passageway and igniting oxygen pipeline is opened, respectively with fuel gas passageway and point
Regulating valve on fiery oxygen pipeline sets up fuel gas and oxygen flow by the oxygen combustion ratio of setting；Burner on fuel gas passageway is opened successively
Near-end stop valve, closes the stop valve of nitrogen protection circuit on fuel gas passageway, opens burner distal end on fuel gas passageway and cuts off
Valve, closes on fuel gas passageway and is vented the emptying stop valve of circuit；Booster coil；Burner on igniting oxygen pipeline is opened successively
Near-end stop valve, closes the stop valve of nitrogen protection circuit on igniting oxygen pipeline, opens burner distal end on igniting oxygen pipeline and cuts off
Valve, closes the emptying stop valve that circuit is vented on igniting oxygen pipeline；When flame detector detects flame, or it is artificial by taking the photograph
As monitor system is seen after flame, for example, it can be confirmed by pressing " igniting manual confirmation button ", be lighted a fire successfully.
The coal slurry material addition step includes：
Respectively water-coal-slurry flow and oxygen flow are set up by the oxygen coal ratio of setting；It is near that burner on water-coal-slurry passage is opened successively
Stop valve is held, two stop valves of nitrogen protection circuit on main oxygen passage are closed, burner distal end on water-coal-slurry passage is opened and cuts off
Valve, the water-coal-slurry circulating valve closed on water-coal-slurry recycle circuit；Then burner near-end stop valve on main oxygen passage is opened in order,
Close on main oxygen passage and be vented the stop valve of circuit, open burner distal end stop valve on main oxygen passage；Above-mentioned valve in place after, coal slurry
Feed intake success.
The fuel gas exit step includes：
The stop valve that nitrogen on fuel gas passageway purges circuit is opened, burner near-end stop valve on central oxygen passage is opened,
Purge corresponding burner channel；Two stop valves on two stop valves and fuel gas passageway are closed on igniting oxygen pipeline, fuel is opened
The stop valve of nitrogen protection circuit on gas passage and igniting oxygen pipeline；Above-mentioned valve in place after, open central oxygen passage on burner it is remote
Stop valve is held, nitrogen protection circuit on the stop valve that nitrogen on fuel gas passageway purges circuit, closing center's oxygen passage is closed
Stop valve；Above-mentioned valve in place after, fuel gas exits success.
Further, the operation method of gasification furnace four-way ignition system also includes step of stopping in emergency, described promptly to stop
Car step is divided into the ignition oven stage and coal slurry feeds intake and the step of stopping in emergency in stage is exited with fuel gas, wherein,
The step of stopping in emergency in the ignition oven stage includes (starting simultaneously at action, no sequencing with lower valve)：
Two stop valves on two stop valves and fuel gas passageway are closed on igniting oxygen pipeline, fuel gas passageway and point is closed
The emptying stop valve of circuit is vented on fiery oxygen pipeline；Open fuel gas passageway, central oxygen passage, igniting oxygen pipeline on nitrogen protection
The stop valve of circuit；Nitrogen on main oxygen passage is opened to purge the stop valve of circuit and close after being delayed 25 seconds；Central oxygen is opened to lead to
On road two stop valves and be delayed 25 seconds after close.
The coal slurry feed intake with fuel gas exit the stage stop in emergency step include (action is started simultaneously at lower valve,
Without sequencing)：
Close two stop valves on main oxygen passage；Delay closes two stop valves on water-coal-slurry passage in 1 second；Main oxygen is opened to lead to
Nitrogen purges the stop valve of circuit and closed after being delayed 25 seconds on road；Delay is opened on water-coal-slurry passage in two stop valves for 7 seconds
Nitrogen purging stop valve, purging 10 seconds after close；
If before fuel gas is exited, coal slurry feeds intake and stopped in emergency with the fuel gas stage of exiting, then the igniting is performed simultaneously
The step of stopping in emergency in baker stage.
In one embodiment, when the timer that stops in emergency was equal to 7 seconds, nitrogen protective wire on water-coal-slurry passage is opened
The stop valve on road, purging is closed after 10 seconds；Two stop valves on central oxygen passage are opened, delay is closed after 25 seconds；Opening center
The stop valve of nitrogen protection circuit on oxygen passage.Stopping in emergency for stage is exited for fuel gas, it is also same before fuel gas is exited
The step of stopping in emergency in ignition oven stage described in Shi Zhihang.
Present system has the following advantages that：
After four-way ignition system of the present invention and corresponding technological process, igniting, baker and coal can be automatically performed
Slurry input, it is not necessary to change burner, save the time, security is added again.In addition, settable two of gasification furnace stops in emergency
Button：Igniting (baker) emergency stop push button, coal slurry put into operation and exit emergency stop push button with fuel gas, are put into operation process in gasification furnace
In, emergency stop push button can be pressed by occurring abnormal conditions, gasified boiler system is stopped to safe condition.
Brief description of the drawings
Fig. 1 is the structural schematic block diagram of the gasification furnace four-way ignition system of the present invention.
Fig. 2 is the structure of an embodiment of the gasification furnace four-way ignition system of the present invention and technological process signal
Figure.
Reference is as follows, and except being otherwise noted in specification, identical letter represents the unit of identical energy in accompanying drawing；Letter
Numeral below represents the numbering of unit：
Two stop valves of XV-；FV- regulating valves；FT- flowmeters；HPN- high pressure nitrogens；The total stop valve of HV- oxygen；BS- fire
Flame interlock；BT- flame detectors；XZ- ignition coils.
Embodiment
Technical scheme and technique effect are further illustrated below by embodiment and with reference to accompanying drawing.
It should be understood that implementation below is used to illustrate the present invention, but it is not limited to the scope of the present invention.
Referring to Fig. 1, it is shown that the structural schematic block diagram of gasification furnace four-way ignition system of the invention.Wherein described four-way
Road ignition system include four-way burner and and the igniter (igniting unit) being connected respectively with the burner and four lead to
Road, four passages include main oxygen and igniting oxygen passage (passage 3), central oxygen passage (passage 2), fuel gas passageway (passage
1) with water-coal-slurry passage (passage 4), wherein, the main oxygen and igniting oxygen passage (passage 3) include main oxygen (outer shroud oxygen) passage
With the igniting oxygen pipeline (igniting, baker oxygen) bridged on main oxygen passage, the head end of igniting oxygen pipeline and end are all located at master
On oxygen passage；The central oxygen passage is separated from main oxygen passage, and the head end of central oxygen passage is located on main oxygen passage, in
The end of heart oxygen passage is connected to burner with main oxygen channel end.
Referring to Fig. 2, the gasification furnace process of feeding intake was divided into for three stages：Ignition oven, coal slurry are fed intake and fuel gas is exited.Entirely
The programmed sequence that process is set according to SIS (safety instrumented systems) system is automatically performed.
Driving early gate original state：Main oxygen nitrogen protection valve (XV-1308), igniting oxygen nitrogen protection valve (XV-1328),
Fuel gas nitrogen protection valve (XV-1365), central oxygen nitrogen protection valve (XV-1326) are opened, and remaining valve is closed.
Ignition oven：After ignition oven process conditions possess, fire inspection vent control valve (XV-1331, XV-1332) is opened,
Down-firing initialization button is pressed, fuel gas atmospheric valve (XV-1361), igniting oxygen atmospheric valve (XV-1322) are opened, vaporized stove oxygen
The total stop valve of gas (HV-1301) is controllable, and remote manual control is opened.Adjusted respectively with fuel gas regulating valve (FV-1362) and igniting oxygen
Valve (FV-1331) regulation igniting fuel gas stream amount (FT-1362) and igniting oxygen flow (FT-1331).Built by the oxygen combustion ratio of setting
Stand after better fiery fuel gas and oxygen flow, press button ignition switch, fire rod is under fire rod propulsion cylinder (XV-1366) driving
Move down certain distance.Fire rod sequentially carries out following operation program afterwards in place：1st, the stop valve of fuel gas second (XV-1363)
Open, fuel gas nitrogen protection valve (XV-1365) is closed；2nd, the stop valve of fuel gas first (XV-1362) is opened, fuel gas emptying
Valve (XV-1361) is closed, while booster coil (XZ-1368)；3rd, the igniting stop valve of oxygen second (XV-1324) is opened, point
Fiery oxygen nitrogen protection valve (XV-1328) is closed；4th, the igniting stop valve of oxygen first (XV-1323) is opened, igniting oxygen emptying stop valve
(XV-1322) close.When flame detector (BT-1361, BT-1362) detects flame, or manually pass through camera monitor
System is seen after flame, presses manual ignition success button, lights a fire successfully.Ignition coil (XZ-1368) is powered off, and fire rod retracts original
Position.It is gradually increased fuel gas and amount of oxygen and enters the baker stage, feeds intake necessary setting value when temperature reaches and stablize a timing
Between after enter second stage：Coal slurry feeds intake.
Coal slurry feeds intake：After ignition oven success, coal slurry entry condition possesses, and sets up water-coal-slurry by the oxygen coal ratio of setting respectively
Flow and oxygen flow.The button that feeds intake is pressed, the stop valve of water-coal-slurry second (XV-1303) is opened successively, main oxygen nitrogen guarantor is closed
Valve (XV-1308) is protected, the stop valve of water-coal-slurry first (XV-1302) is opened, when the valve position of the stop valve of water-coal-slurry first (XV-1302)
During more than 50%, water-coal-slurry circulating valve (XV-1301) is closed.Above valve in place after, coal slurry enters stove timer and starts timing, arrives
Up to after the time of setting, the main stop valve of oxygen second (XV-1306) is opened in order, main oxygen atmospheric valve (XV-1307) is closed, works as master
During the valve position small 70% of oxygen atmospheric valve (XV-1307), the main stop valve of oxygen first (XV-1305) is opened.The main stop valve of oxygen first,
After two stop valves are opened, main oxygen atmospheric valve closes in place, coal slurry feeds intake success, into the phase III：Fuel gas is exited.
Fuel gas is exited：Fuel gas exit button is pressed, valve is acted according to setting program：It is first turned on fuel gas nitrogen
Blow down valve (XV-1364) and the stop valve of central oxygen second (XV-1329), start to purge corresponding burner channel, are then switched off igniting
Oxygen stop valve (XV-1323, XV-1324) and fuel gas stop valve (XV-1362, XV-1363), open fuel gas nitrogen protection valve
(XV-1365), igniting oxygen nitrogen protection valve (XV-1328), above valve in place after, open the first stop valve of central oxygen (XV-
1327) fuel gas nitrogen purge valve (XV-1364) and central oxygen nitrogen protection valve (XV-1326), are finally turned off.Ignition oven
Fuel gas stop valve (XV-1362, XV-1363) and igniting oxygen stop valve (XV-1323, XV-1324) are closed, and central oxygen twice are cut
Disconnected valve (XV-1327, XV-1329) is opened, fuel gas nitrogen purge valve (XV-1364) and central oxygen nitrogen protection valve (XV-
1326) close, above valve in place after, fuel gas exits success.
Gasification furnace stops in emergency：
In the ignition oven stage, by down-firing (baker) emergency stop push button, perform igniting (baker) and stop in emergency program
(action, no sequencing are started simultaneously at lower valve)：Igniting oxygen stop valve (XV-1323, XV-1324) and fuel gas stop valve
(XV-1362, XV-1363) is closed；Fuel gas atmospheric valve (XV-1361), igniting oxygen atmospheric valve (XV-1322) are closed；Fuel gas
Nitrogen protection valve (XV-1365), igniting oxygen nitrogen protection valve (XV-1328) are opened, central oxygen nitrogen protection valve (XV-1326) is beaten
Open；The main nitrogen purge valve of oxygen second (XV-1320) is opened, and is delayed 25 seconds and is closed；Central oxygen twice stop valve (XV-1327, XV-
1329) open, be delayed 25 seconds and close.
Fed intake in coal slurry and exit the stage with fuel gas, pressed coal slurry and put into operation emergency stop push button, performed coal slurry and feed intake and fire
Material gas exits the program of stopping in emergency, the timer that stops in emergency while startup coal slurry feeds intake.Action, no elder generation are started simultaneously at lower valve
Afterwards sequentially：Main oxygen stop valve (XV-1305, XV-1306) is closed；Water-coal-slurry stop valve (XV-1302, XV-1303) is delayed 1 second and closed
Close；Main oxygen nitrogen purge valve (XV-1320) is opened, and is delayed 25 seconds and is closed.Stop in emergency, stop when promptly for coal slurry feeding stage
When car timer is equal to 7 seconds, water-coal-slurry nitrogen purge valve (XV-1321) is opened, purging is closed after 10 seconds；Central oxygen twice are cut off
Valve (XV-1327, XV-1329) is opened, and is delayed 25 seconds and is closed；Central oxygen nitrogen protection valve (XV-1326) is opened.For fuel gas
The stage is exited, before fuel gas is exited, gasification furnace stops in emergency, the program while execution igniting is stopped in emergency.
Although above with general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements, belong to the scope of protection of present invention without departing from theon the basis of the spirit of the present invention.
Claims (10)
1. a kind of gasification furnace four-way ignition system, the ignition system includes burner and the point being connected respectively with the burner
Fiery unit and four passages, four passages include main oxygen and igniting oxygen passage, central oxygen passage, fuel gas passageway and water coal
Starch passage, it is characterised in that the main oxygen and igniting oxygen passage include main oxygen passage and the igniting oxygen bridged on main oxygen passage
Pipeline, the head end of igniting oxygen pipeline and end are all located on main oxygen passage；The central oxygen passage is isolated from main oxygen passage
Come, the head end of central oxygen passage is located on main oxygen passage, and the end of central oxygen passage is connected to burner with main oxygen channel end.
2. gasification furnace four-way ignition system as claimed in claim 1, it is characterised in that the burner is four-way burner,
Four passages in the burner are arranged concentrically from burner center to edge, and four from burner center to edge passage is distinguished
Central oxygen passage, fuel gas passageway, water-coal-slurry passage and main oxygen and igniting oxygen passage are connected to, or is respectively connecting to fuel
Gas passage, central oxygen passage, water-coal-slurry passage and main oxygen and igniting oxygen passage.
3. gasification furnace four-way ignition system as claimed in claim 2, it is characterised in that the main oxygen passage, igniting oxygen pipe
There is nitrogen protective separation device respectively, the nitrogen protective separation device includes on line, central oxygen passage and fuel gas passageway
The nitrogen protection circuit that is connected on above-mentioned passage or pipeline and it is located on above-mentioned passage or pipeline and respectively corresponding nitrogen
Two stop valves of protection circuit both sides, wherein, also there is stop valve on the nitrogen protection circuit.
4. gasification furnace four-way ignition system as claimed in claim 3, it is characterised in that in the main oxygen passage, igniting oxygen
There is emptying device respectively, the emptying device includes connection before nitrogen protective separation device on pipeline and fuel gas passageway
The emptying stop valve on emptying circuit and the emptying circuit on to above-mentioned passage or pipeline.
5. gasification furnace four-way ignition system as claimed in claim 4, it is characterised in that in the main oxygen passage, igniting oxygen
There is regulating valve and flowmeter successively respectively before emptying device on pipeline and fuel gas passageway；On the central oxygen passage
Two stop valves after successively have flowmeter and regulating valve.
6. gasification furnace four-way ignition system as claimed in claim 5, it is characterised in that in the igniting oxygen pipeline and fuel
On gas passage, the regulating valve and flowmeter are respectively adopted two groups of modes in parallel and set；In main the oxygen passage and fuel gas
Also there is the nitrogen being connected on main oxygen passage and fuel gas passageway respectively after nitrogen protective separation device on passage
Purge circuit；Also there is the total stop valve of oxygen apart from the distal end of burner on the main oxygen passage.
7. gasification furnace four-way ignition system as claimed in claim 6, it is characterised in that the water-coal-slurry passage includes successively
Water-coal-slurry recycle circuit, two two stop valves and nitrogen protection circuit, are then attached to burner；The igniting unit is wrapped successively
Ignition coil, fire rod propulsion cylinder and fire rod are included, burner is then attached to.
8. gasification furnace four-way ignition system as claimed in claim 7, it is characterised in that the gasification furnace four-way igniting system
System also includes the flame detection unit by burner, and the flame detection unit includes flame interlock, the flame being sequentially connected
Two stop valves of detector and sense channel, are then attached to gasification furnace.
9. a kind of operation method of gasification furnace four-way ignition system, the operation method includes ignition oven step, coal slurry and thrown
Expect step and fuel gas exit step, it is characterised in that
The ignition oven step includes：
The emptying stop valve that circuit is vented on fuel gas passageway and igniting oxygen pipeline is opened, respectively with fuel gas passageway and igniting oxygen
Regulating valve on pipeline sets up fuel gas and oxygen flow by the oxygen combustion ratio of setting；Burner near-end on fuel gas passageway is opened successively
Stop valve, closes the stop valve of nitrogen protection circuit on fuel gas passageway, opens burner distal end stop valve on fuel gas passageway, closes
Close on fuel gas passageway and be vented the emptying stop valve of circuit；Booster coil；Burner near-end on igniting oxygen pipeline is opened successively
Stop valve, closes the stop valve of nitrogen protection circuit on igniting oxygen pipeline, opens burner distal end stop valve on igniting oxygen pipeline, closes
The emptying stop valve of circuit is vented on close point fire oxygen pipeline；When flame detector detects flame, or manually pass through and image prison
Control device system is seen after flame, lights a fire successfully；
The coal slurry material addition step includes：
Respectively water-coal-slurry flow and oxygen flow are set up by the oxygen coal ratio of setting；Burner near-end on water-coal-slurry passage is opened successively to cut
Disconnected valve, closes two stop valves of nitrogen protection circuit on main oxygen passage, opens burner distal end stop valve on water-coal-slurry passage, closes
The water-coal-slurry circulating valve closed on water-coal-slurry recycle circuit；Then burner near-end stop valve on main oxygen passage is opened in order, is closed
The stop valve of circuit is vented on main oxygen passage, burner distal end stop valve on main oxygen passage is opened；Above-mentioned valve in place after, coal slurry feeds intake
Success；
The fuel gas exit step includes：
The stop valve that nitrogen on fuel gas passageway purges circuit is opened, burner near-end stop valve on central oxygen passage, purging is opened
Corresponding burner channel；Two stop valves on two stop valves and fuel gas passageway are closed on igniting oxygen pipeline, fuel gas is opened and leads to
The stop valve of nitrogen protection circuit on road and igniting oxygen pipeline；Above-mentioned valve in place after, open central oxygen passage on burner distal end cut
Disconnected valve, closes the cut-out of nitrogen protection circuit on the stop valve that nitrogen on fuel gas passageway purges circuit, closing center's oxygen passage
Valve；Above-mentioned valve in place after, fuel gas exits success.
10. operation method as claimed in claim 9, it is characterised in that the operation method also includes stop in emergency step, institute
State that step of stopping in emergency is divided into the ignition oven stage and coal slurry feeds intake and the step of stopping in emergency in stage is exited with fuel gas, its
In,
The step of stopping in emergency in the ignition oven stage includes：
Two stop valves on two stop valves and fuel gas passageway are closed on igniting oxygen pipeline, fuel gas passageway and igniting oxygen is closed
The emptying stop valve of circuit is vented on pipeline；Open fuel gas passageway, central oxygen passage, igniting oxygen pipeline on nitrogen protection circuit
Stop valve；Nitrogen on main oxygen passage is opened to purge the stop valve of circuit and close after being delayed 25 seconds；Open on central oxygen passage
Two stop valves and be delayed 25 seconds after close；
The coal slurry step of stopping in emergency for exiting the stage with fuel gas that feeds intake includes：
Close two stop valves on main oxygen passage；Delay closes two stop valves on water-coal-slurry passage in 1 second；Open on main oxygen passage
Nitrogen purges the stop valve of circuit and closed after being delayed 25 seconds；The nitrogen that delay is opened on water-coal-slurry passage in two stop valves for 7 seconds
Stop valve is swept in air-blowing, and purging is closed after 10 seconds；
If before fuel gas is exited, coal slurry feeds intake and stopped in emergency with the fuel gas stage of exiting, then the ignition oven is performed simultaneously
The step of stopping in emergency in stage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710311778.8A CN106987282B (en) | 2017-05-05 | 2017-05-05 | Four-channel ignition system of gasification furnace and operation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710311778.8A CN106987282B (en) | 2017-05-05 | 2017-05-05 | Four-channel ignition system of gasification furnace and operation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106987282A true CN106987282A (en) | 2017-07-28 |
| CN106987282B CN106987282B (en) | 2022-09-23 |
Family
ID=59417456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710311778.8A Active CN106987282B (en) | 2017-05-05 | 2017-05-05 | Four-channel ignition system of gasification furnace and operation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106987282B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111019707A (en) * | 2018-10-09 | 2020-04-17 | 中国石化工程建设有限公司 | Method and device for controlling operation of gasification furnace and gasification furnace |
| CN111690441A (en) * | 2019-03-13 | 2020-09-22 | 中国石化工程建设有限公司 | System for gasifier firing and method for gasifier firing |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102408919A (en) * | 2011-10-11 | 2012-04-11 | 北京航天动力研究所 | Combustion nozzle combination device of multi-channel coal water slurry gasification furnace |
| CN102618332A (en) * | 2011-12-23 | 2012-08-01 | 航天长征化学工程股份有限公司 | Starting/stopping control method and system for powdered coal pressure gasification device |
| CN103013574A (en) * | 2012-11-26 | 2013-04-03 | 清华大学 | Water-coal-slurry nozzle |
| JP2014208850A (en) * | 2014-08-04 | 2014-11-06 | 三菱日立パワーシステムズ株式会社 | Gasifier activation method, gasifier and gasification combined power generating installation |
| CN104449867A (en) * | 2014-11-20 | 2015-03-25 | 水煤浆气化及煤化工国家工程研究中心 | Method for controlling igniter burner of powdered coal pressurized gasifier |
| CN206692607U (en) * | 2017-05-05 | 2017-12-01 | 北京清创晋华科技有限公司 | A kind of gasification furnace four-way ignition system |
-
2017
- 2017-05-05 CN CN201710311778.8A patent/CN106987282B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102408919A (en) * | 2011-10-11 | 2012-04-11 | 北京航天动力研究所 | Combustion nozzle combination device of multi-channel coal water slurry gasification furnace |
| CN102618332A (en) * | 2011-12-23 | 2012-08-01 | 航天长征化学工程股份有限公司 | Starting/stopping control method and system for powdered coal pressure gasification device |
| CN103013574A (en) * | 2012-11-26 | 2013-04-03 | 清华大学 | Water-coal-slurry nozzle |
| JP2014208850A (en) * | 2014-08-04 | 2014-11-06 | 三菱日立パワーシステムズ株式会社 | Gasifier activation method, gasifier and gasification combined power generating installation |
| CN104449867A (en) * | 2014-11-20 | 2015-03-25 | 水煤浆气化及煤化工国家工程研究中心 | Method for controlling igniter burner of powdered coal pressurized gasifier |
| CN206692607U (en) * | 2017-05-05 | 2017-12-01 | 北京清创晋华科技有限公司 | A kind of gasification furnace four-way ignition system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111019707A (en) * | 2018-10-09 | 2020-04-17 | 中国石化工程建设有限公司 | Method and device for controlling operation of gasification furnace and gasification furnace |
| CN111019707B (en) * | 2018-10-09 | 2021-04-16 | 中国石化工程建设有限公司 | Method and device for controlling operation of gasification furnace and gasification furnace |
| CN111690441A (en) * | 2019-03-13 | 2020-09-22 | 中国石化工程建设有限公司 | System for gasifier firing and method for gasifier firing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106987282B (en) | 2022-09-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104449867B (en) | A kind of powdered coal pressuring gasified furnace igniting burner control method | |
| CN206692607U (en) | A kind of gasification furnace four-way ignition system | |
| CN106987282A (en) | A kind of gasification furnace four-way ignition system and operation method | |
| CN101575525A (en) | Device and method for controlling diffusion of gas collecting pipe | |
| CN201513899U (en) | Equipment used for burning blast furnace waste gas from bleeder valve and corresponding bleeder valve | |
| CN102951616A (en) | Cracking furnace for waste acid | |
| CN109234482B (en) | Full recovery system for coal gas diffused by blast furnace top charging bucket and safety maintenance method thereof | |
| CN204824947U (en) | Converter coal gas is retrieved and is diffused controlling means | |
| CN201819229U (en) | Incineration device for treating pulping odor of paper mill | |
| CN201206125Y (en) | Release control apparatus for coke oven gas collector | |
| CN104479759B (en) | A kind of method improving gasifier to start working burner ignition success rate | |
| CN102954467B (en) | Gas burner | |
| CN101943414A (en) | Incinerator for processing pulping foul gas in paper mills | |
| CN102295085B (en) | Hot film methane hot wind utilization control system and operation control method thereof | |
| CN202089276U (en) | Hot film marsh gas hot air utilization control system | |
| CN107327855B (en) | Raw coke oven gas diffusing and igniting device | |
| CN215675228U (en) | Vented combustion control system | |
| CN108278608A (en) | A kind of oil industry refuse pyrolysis control system and method | |
| CN102559274A (en) | Hot-wall type coal water slurry or pulverized coal gasification furnace fire-resistant lining preheating device and method thereof | |
| CN206247350U (en) | A kind of biogas mix flare burner | |
| CN207112832U (en) | Coal oven dithio-gas diffuses and igniter | |
| CN206607201U (en) | Gasifying powder coal device | |
| CN201680712U (en) | Annular sleeve kiln burner ignition control device | |
| CN205808137U (en) | A kind of furnace exhaust delivery pipe explosion-protection equipment | |
| CN104862445B (en) | A kind of coal gas of converter automatic switchover igniter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |