CN105754663B - A kind of coal gasified black water processing system remaining energy recovery system and method - Google Patents
A kind of coal gasified black water processing system remaining energy recovery system and method Download PDFInfo
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- CN105754663B CN105754663B CN201610252386.4A CN201610252386A CN105754663B CN 105754663 B CN105754663 B CN 105754663B CN 201610252386 A CN201610252386 A CN 201610252386A CN 105754663 B CN105754663 B CN 105754663B
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- 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
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
- C10J3/485—Entrained flow gasifiers
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/08—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors
- C10K1/10—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids
- C10K1/101—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids with water only
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/08—Adaptations for driving, or combinations with, pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
-
- 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
- C10J2300/0933—Coal fines for producing water gas
-
- 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
- C10J2300/0953—Gasifying agents
- C10J2300/0959—Oxygen
-
- 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
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/1603—Integration of gasification processes with another plant or parts within the plant with gas treatment
- C10J2300/1615—Stripping
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
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- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
本发明提供一种煤气化黑水处理系统用余压能回收系统及方法。其汽化炉的下部黑水出口通过并联的两条管路连接高压闪蒸槽入口，其中一条管路上依次设置流量调节阀、液力透平、压力调节阀一，另一条管路上设置压力调节阀二；液力透平连接负载设备；其将黑水能量分为水的饱和压力以上的余压能和热能两部分，热能采用高压闪蒸槽闪蒸汽化予以回收，余压能采用液力透平予以回收。本发明提高了煤气化湿法除尘黑水处理系统的能量回收水平、降低了装置能耗，同时有利于改善压力调节阀(或称闪蒸阀)的运行状态，降低设备损耗。
The invention provides a residual pressure energy recovery system and method for a coal gasification black water treatment system. The black water outlet of the lower part of the vaporization furnace is connected to the inlet of the high-pressure flash tank through two parallel pipelines. One pipeline is set with a flow regulating valve, a hydraulic turbine, and a pressure regulating valve, and the other pipeline is set with a pressure regulating valve. 2. The hydraulic turbine is connected to the load equipment; it divides the black water energy into two parts, the residual pressure energy above the saturation pressure of the water and the thermal energy. flat to be recycled. The invention improves the energy recovery level of the coal gasification wet dedusting black water treatment system, reduces the energy consumption of the device, and is beneficial to improve the operation state of the pressure regulating valve (or flash valve) and reduce equipment loss.
Description
Technical field
The invention belongs to energy regenerating or field of energy conversion, and in particular to a kind of coal gasified black water processing system overbottom pressure
Energy recovery system and method, it is suitable for the recycling of pressure energy in coal gasification apparatus wet dedusting process system, the energy of recycling
It can be used for transfer tube or generator and other slewings.
Background technique
Coal gasification is the core technology of coal clean utilization, either powdered coal pressuring gasified, water coal slurry pressure gasification and its
Its gasification process, the raw gas of generation have to pass through dust separation, and wherein wet dedusting is in coal gasification course using the most
A kind of extensive dust removal method.Wet dedusting has the characteristics that run smoothly, equipment manufacturing cost is low.Although during wet dedusting
Heisui River makes heat obtain abundant recycling by means such as flash distillation, heat exchange, but opposite dry method dust energy consumption is still slightly higher.
Up to the present, black water treatment system remaining energy recycling worldwide still belongs to blank.Reason is that Heisui River is situated between
Matter high temperature causes difficulty to the design of turbine structure containing fixed gas, containing solid particle, while not coagulating in turbine decompression flow process
Air elutriation goes out, high-temperature water may flash under local depression flox condition in turbine, system capacity matching status has operating turbine
It influences, Heisui River pressure and flow control have an impact to system run all right.Therefore, reasonable design black water treatment system and energy
Amount recovery system is the technology of the present invention key.
Summary of the invention
The purpose of the present invention is to provide a kind of coal gasified black water processing system remaining energy recovery system and method, energy
It enough reduces coal clean utilization system energy consumption, improve economy.
Realize the technical solution of the object of the invention: a kind of coal gasified black water processing system remaining energy recovery system, this is
System includes the gasification burner for receiving oxygen, coal dust or water-coal-slurry, and oxygen, coal dust or water-coal-slurry are burnt in gasification burner forms rough coal
Gas；The lower part Heisui River outlet of its gasification burner is by two piping connection high pressure flash slot entrances in parallel, wherein on a pipeline
Flow control valve, hydraulic turbine, pressure-regulating valve one are set gradually, pressure-regulating valve two is set on another pipeline；Fluid power is saturating
Flushconnection load equipment；Its remaining energy and thermal energy two parts that Heisui River energy is divided into the saturation pressure of water or more, thermal energy use
High pressure flash slot flash of steam is recycled, and remaining energy is recycled using hydraulic turbine.
A kind of as described above coal gasified black water processing system remaining energy recovery system, described in high pressure flash slot
The steam inlet of steam (vapor) outlet connection heat exchanger；The entrance of the water out connection deoxygenation slot of high pressure flash slot, the outlet of deoxygenation slot
Connect the entrance of scrubbing tower feed pump, the water inlet of the outlet connection heat exchanger of scrubbing tower feed pump；The water out of heat exchanger connects
Connect the water inlet of scrubbing tower；The entrance of the water out connection chilling water pump of scrubbing tower, the outlet of chilling water pump connects under gasification burner
The water inlet in portion；The entrance of the raw gas outlet connection scrubbing tower on gasification burner top；The slag outlet connection for vaporizing furnace bottom is broken
Slag machine.
A kind of as described above coal gasified black water processing system remaining energy recovery system, described in gasification burner top
Raw gas outlet connects the entrance of scrubbing tower by injector.
A kind of coal gasified black water processing system remaining energy recovery system as described above, described in load equipment be hair
Motor or pump or other slewings.
A kind of coal gasified black water processing system remaining energy recovery system as described above, comes out from the gasification burner
Raw gas enter scrubbing tower, in scrubbing tower, the water from heat exchanger to from gasification burner come raw gas carry out cleaning dust,
The buck of formation is pressurized in injection gasification burner through chilling water pump, to the coal gas and clinker progress chilling in gasification burner；In gasification burner
The Heisui River that lower part is formed enters hydraulic turbine, recycles remaining energy by hydraulic turbine and drives load equipment；It is come out from hydraulic turbine
Heisui River enter high pressure flash slot；The water come out from high pressure flash slot enters heat exchange by scrubbing tower feed pump after deoxygenation slot
Enter scrubbing tower after tower heating；The steam come out from high pressure flash slot enters heat exchanger, passes through after heat exchange cooling in heat exchanger
The steam (vapor) outlet of heat exchanger is discharged；The clinker that gasification burner is formed enters the slag breaker of vaporization furnace bottom connection.
A kind of coal gasified black water processing system remaining energy recovery method of the present invention, oxygen, coal dust in this method
Or water-coal-slurry burns in gasification burner and forms raw gas；Its Heisui River come out from gasification burner lower part adjusts stream by flow control valve
Enter hydraulic turbine after amount, remaining energy is recycled by hydraulic turbine, to drive load equipment；From the Heisui River that hydraulic turbine comes out
Enter high pressure flash slot after pressure-regulating valve one adjusts pressure, recycles thermal energy with high pressure flash slot flash of steam；It is vaporizing
The spare duct for having pressure-regulating valve two is additionally provided between furnace and high pressure flash slot.
A kind of coal gasified black water processing system remaining energy recovery method as described above, described in gasification burner pressure
For P1, the saturation pressure of water is P2, the remaining energy P of hydraulic turbine recycling3=P1-P2。
A kind of coal gasified black water processing system remaining energy recovery method as described above, this method comprises the following steps:
(a) oxygen and coal dust, which enter to burn in gasification burner, forms raw gas, and raw gas enters in scrubbing tower；
(b) Heisui River that gasification burner lower part comes out enters high pressure after flow control valve, hydraulic turbine, pressure-regulating valve one
Flash tank；Remaining energy, which is recycled, by hydraulic turbine drives load equipment；
(c) enter heat exchanger from the steam containing fixed gas that high pressure flash slot comes out, for heating from scrubbing tower feed pump
The water come；
The water come out from high pressure flash slot enters after deoxygenation slot deoxygenation and enters heat exchanger heating by scrubbing tower feed pump, from
The water come out after heat exchanger heating enters in scrubbing tower, carries out cleaning dust to the raw gas come from gasification burner；
(d) buck formed in scrubbing tower carries out coal gas and clinker through chilling water pump pressurization injection gasification burner lower part anxious
It is cold；
(e) clinker that gasification burner is formed enters slag breaker.
A kind of coal gasified black water processing system remaining energy recovery method as described above, described in load equipment be hair
Motor or pump or other slewings.
A kind of as described above coal gasified black water processing system remaining energy recovery method, described in gasification burner top
Raw gas outlet connects the entrance of scrubbing tower by injector.
Effect of the invention is that: the present invention is directed to the Heisui River energy composition situation come out from gasification burner and analyzes, will
Heisui River energy is divided into the remaining energy and thermal energy two parts of the saturation pressure of water or more, and the thermal energy of saturation state water uses flash of steam
Energy reclaiming method, overbottom pressure energy is recycled using hydraulic turbine.This new energy recovery process method of the present invention
It improves the energy regenerating level of coal gasification wet dedusting black water treatment system, reduce plant energy consumption, while being conducive to improve
The operating status of pressure-regulating valve (or flash valve) reduces equipment loss.Not according to coal gasification scale, gasification burner pressure
Together, the level of energy regenerating is different, wherein use present invention process method, the recovery levels of Heisui River remaining energy up to 50%~
80%.With 750 tons of coal/days of gasification burner treating capacity, gasification burner pressure 4MPa, corresponding Heisui River overbottom pressure energy 80kW can be recycled, often
Recyclable 640,000 degree of electric energy of year.Gasification burner treating capacity is bigger, and energy recovery rate is higher, 1500 tons of coal/days, gasification burner pressure 4MPa
When, it recovers energy up to 200kW, annual about 1,600,000 degree of electric energy of recycling.
Detailed description of the invention
Fig. 1 is a kind of coal gasified black water processing system remaining energy recovery system schematic diagram of the present invention.
In figure: 1. gasification burners；2. slag breaker；3. flow control valve；4. hydraulic turbine；5. pressure-regulating valve one；6. high pressure
Flash tank；7. deoxygenation slot；8. pressure-regulating valve two；9. heat exchanger；10. scrubbing tower；11 injectors；12. chilling water pump；13. washing
Wash tower feed pump；14. load equipment.
Specific embodiment
In the following with reference to the drawings and specific embodiments to a kind of coal gasified black water processing system remaining energy of the present invention
Recovery system and method are further described.
Embodiment 1
As shown in Figure 1, a kind of coal gasified black water processing system remaining energy recovery system of the present invention comprising vapour
Change furnace 1, slag breaker 2, flow control valve 3, hydraulic turbine 4, pressure-regulating valve 1, high pressure flash slot 6, deoxygenation slot 7, pressure tune
Save valve 28, heat exchanger 9, scrubbing tower 10, injector 11, chilling water pump 12, scrubbing tower feed pump 13, load equipment 14.
The lower part Heisui River outlet of gasification burner 1 is by two 6 entrances of piping connection high pressure flash slot in parallel, wherein a pipe
Road sets gradually flow control valve 3, hydraulic turbine 4, pressure-regulating valve 1, and pressure-regulating valve two is arranged on another pipeline
8；Hydraulic turbine 4 connects load equipment 14；Its by Heisui River energy be divided into the saturation pressure of water or more remaining energy and thermal energy two
Point, thermal energy is recycled using 6 flash of steam of high pressure flash slot, and remaining energy is recycled using hydraulic turbine.Load equipment 14
For generator or pump or other slewings.
The steam inlet of the steam (vapor) outlet connection heat exchanger 9 of high pressure flash slot 6.
The entrance of the water out connection deoxygenation slot 7 of high pressure flash slot 6, the outlet of deoxygenation slot 7 connects scrubbing tower feed pump 13
Entrance, scrubbing tower feed pump 13 outlet connection heat exchanger 9 water inlet.
The water inlet of the water out connection scrubbing tower 10 of heat exchanger 9.
The entrance of the water out connection chilling water pump 12 of scrubbing tower 10, the outlet of chilling water pump 12 connects 1 lower part of gasification burner
Water inlet.
The entrance of the raw gas outlet connection scrubbing tower 10 on 1 top of gasification burner.
The slag outlet of 1 bottom of gasification burner connects slag breaker 2.
When a kind of coal gasified black water processing system of the present invention is worked with remaining energy recovery system:
Oxygen, coal dust or water-coal-slurry are burnt in gasification burner 1 forms raw gas, and raw gas enters washing by injector 11
Tower 10, in scrubbing tower 10, the water from heat exchanger 9 carries out cleaning dust, the buck of formation to from the raw gas of gasification burner 1
It is pressurized in injection gasification burner 1 through chilling water pump 12, to the coal gas and clinker progress chilling in gasification burner 1；
Enter hydraulic turbine 4 in the Heisui River that 1 lower part of gasification burner is formed, remaining energy driving load is recycled by hydraulic turbine and is set
Standby 14；Enter high pressure flash slot 6 from the Heisui River that hydraulic turbine 4 comes out；
The water come out from high pressure flash slot 6 is after deoxygenation slot 7, after entering the heating of heat exchange columns 9 by scrubbing tower feed pump 13
Into scrubbing tower 10；
The steam come out from high pressure flash slot 6 enters heat exchanger 9, passes through heat exchanger 9 after heat exchange cooling in heat exchanger 9
Steam (vapor) outlet discharge；
The clinker that gasification burner 1 is formed enters the slag breaker 2 of 1 bottom of gasification burner connection.
Embodiment 2
As shown in Figure 1, a kind of coal gasified black water processing system remaining energy recovery method of the present invention, in this method
Oxygen, coal dust or water-coal-slurry are burnt in gasification burner 1 forms raw gas；
The Heisui River come out from 1 lower part of gasification burner enters hydraulic turbine 4 after flow control valve 3 adjusts flow, passes through liquid
Power turbine 4 recycles remaining energy, to drive load equipment 14；It is adjusted from the Heisui River that hydraulic turbine 4 comes out by pressure-regulating valve 1
Enter high pressure flash slot 6 after saving pressure, recycles thermal energy with 6 flash of steam of high pressure flash slot；In gasification burner 1 and high pressure flash slot 6
Between be additionally provided with one have pressure-regulating valve 28 spare duct.
The pressure of the gasification burner 1 is P1, the saturation pressure of water is P2, the remaining energy P of the recycling of hydraulic turbine 43=P1-
P2。
Embodiment 3
As shown in Figure 1, a kind of coal gasified black water processing system remaining energy recovery method of the present invention, this method include
Following steps:
(a) oxygen and coal dust, which enter to burn in gasification burner 1, forms raw gas, and raw gas enters scrubbing tower by injector 11
In 10；
(b) Heisui River that 1 lower part of gasification burner comes out enters after flow control valve 3, hydraulic turbine 4, pressure-regulating valve 1
High pressure flash slot 6, part water form low-pressure steam, fixed gas are precipitated simultaneously；Remaining energy driving load is recycled by hydraulic turbine
Equipment 14；The load equipment 14 is generator or pump or other slewings.
(c) enter heat exchanger 9 from the steam containing fixed gas that high pressure flash slot 6 comes out, be fed for heating from scrubbing tower
The water of pump 13；
The water come out from high pressure flash slot 6 enters after 7 deoxygenation of deoxygenation slot and is added by scrubbing tower feed pump 13 into heat exchanger 9
Heat, the water come out after the heating of heat exchanger 9 enter in scrubbing tower 10, carry out cleaning dust to the raw gas come from gasification burner；
(d) buck formed in scrubbing tower 10 through chilling water pump 12 be pressurized injection 1 lower part of gasification burner to coal gas and clinker into
Row chilling；
(e) clinker that gasification burner 1 is formed enters slag breaker 2.
In the present embodiment, 1 pressure of gasification burner is 4.0MPa grades；Pressure 0.5MPa of high pressure flash slot or so；In gasification burner 1
For chilling coolant-temperature gage at 210 DEG C or so, the saturation pressure of the temperature water is about 1.9MPa (A).
Flash distillation is by the water of saturation state by decompression, and absorbing part water, heat forms steam, other parts water becomes
The process of low pressure saturation state water.As it can be seen that from gasification burner come out Heisui River pressure and water at this temperature saturation pressure have it is larger
Difference, directly flash distillation can't because pressure height due to the more heats of vaporizing section dielectric contribution, i.e. flash-off steam amount is constant,
So the present invention is beneficial to energy conservation consumption reduction to the recycling of this part remaining energy by hydraulic turbine, and gasification burner pressure is higher, gasification
Yield is higher, and the recovering effect of this part remaining energy is more obvious
Interest field of the invention is not limited only to text and diagramatic content of the invention, comprising spare as derived from the present invention
Flash lines adjust line, flow control valve and pressure-regulating valve using configuration mode identical with turbine flash lines, increase flow
Default, turbine line and flow adjust situations such as line shares a pressure-regulating valve.The increase and decrease of the other switch valves of systematic pipeline is adjusted
The change of valve form is without prejudice to the content of present invention.The method of the present invention can also be in the application of other related fieldss.
Claims (9)
1. a kind of coal gasified black water processing system remaining energy recovery system, which includes receiving oxygen, coal dust or water-coal-slurry
Gasification burner (1), the burning in the gasification burner (1) of oxygen, coal dust or water-coal-slurry forms raw gas；It is characterized by: gasification burner (1)
The outlet of lower part Heisui River by two piping connection high pressure flash slot (6) entrances in parallel, wherein being set gradually on a pipeline
Pressure-regulating valve two (8) are arranged on another pipeline in flow control valve (3), hydraulic turbine (4), pressure-regulating valve one (5)；Liquid
Power turbine (4) connects load equipment (14)；Its by Heisui River energy be divided into the saturation pressure of water or more remaining energy and thermal energy two
Point, thermal energy is recycled using high pressure flash slot (6) flash of steam, and remaining energy is recycled using hydraulic turbine；
The steam inlet of steam (vapor) outlet connection heat exchanger (9) of the high pressure flash slot (6)；
The outlet of the entrance of water out connection deoxygenation slot (7) of high pressure flash slot (6), deoxygenation slot (7) connects scrubbing tower feed pump
(13) entrance, the water inlet of outlet connection heat exchanger (9) of scrubbing tower feed pump (13)；
The water inlet of water out connection scrubbing tower (10) of heat exchanger (9)；
The outlet of the entrance of water out connection chilling water pump (12) of scrubbing tower (10), chilling water pump (12) connects gasification burner (1)
The water inlet of lower part；
The entrance of raw gas outlet connection scrubbing tower (10) on gasification burner (1) top；
The slag outlet of gasification burner (1) bottom connects slag breaker (2).
2. a kind of coal gasified black water processing system remaining energy recovery system according to claim 1, it is characterised in that: institute
The entrance that the raw gas outlet on gasification burner (1) top stated passes through injector (11) connection scrubbing tower (10).
3. a kind of coal gasified black water processing system remaining energy recovery system according to claim 1, it is characterised in that: institute
The load equipment (14) stated is generator or pump or other slewings.
4. a kind of coal gasified black water processing system remaining energy recovery system according to claim 1, it is characterised in that: from
The raw gas that the gasification burner (1) comes out enters scrubbing tower (10), in scrubbing tower (10), comes from the water pair of heat exchanger (9)
The raw gas come from gasification burner (1) carries out cleaning dust, and the buck of formation is pressurized injection gasification burner (1) through chilling water pump (12)
It is interior, to the coal gas and clinker progress chilling in gasification burner (1)；
Enter hydraulic turbine (4) in the Heisui River that gasification burner (1) lower part is formed, remaining energy driving load is recycled by hydraulic turbine and is set
Standby (14)；The Heisui River come out from hydraulic turbine (4) enters high pressure flash slot (6)；
The water come out from high pressure flash slot (6) adds after deoxygenation slot (7), through scrubbing tower feed pump (13) into heat exchanger (9)
Enter scrubbing tower (10) after heat；
The steam come out from high pressure flash slot (6) enters heat exchanger (9), passes through heat exchanger after heat exchange cooling in heat exchanger (9)
(9) steam (vapor) outlet discharge；
The clinker that gasification burner (1) is formed enters the slag breaker (2) of gasification burner (1) bottom connection.
5. a kind of coal gasified black water processing system remaining energy recovery method, oxygen, coal dust or water-coal-slurry are being vaporized in this method
Burning forms raw gas in furnace (1)；It is characterized by: the Heisui River come out from gasification burner (1) lower part is adjusted by flow control valve (3)
Enter hydraulic turbine (4) after amount of restriction, remaining energy is recycled by hydraulic turbine (4), to drive load equipment (14)；From fluid power
The Heisui River that turbine (4) comes out enters high pressure flash slot (6) after pressure-regulating valve one (5) adjusts pressure, with high pressure flash slot
(6) flash of steam recycles thermal energy；One is additionally provided between gasification burner (1) and high pressure flash slot (6) with pressure-regulating valve two
(8) spare duct.
6. a kind of coal gasified black water processing system remaining energy recovery method according to claim 5, it is characterised in that: institute
The pressure for the gasification burner (1) stated is P1, the saturation pressure of water is P2, the remaining energy P of hydraulic turbine (4) recycling3=P1-P2。
7. a kind of coal gasified black water processing system remaining energy recovery method according to claim 5, it is characterised in that: should
Method includes the following steps:
(a) oxygen and coal dust, which enter to burn in gasification burner (1), forms raw gas, and raw gas enters in scrubbing tower (10)；
(b) Heisui River that gasification burner (1) lower part comes out is after flow control valve (3), hydraulic turbine (4), pressure-regulating valve one (5)
Into high pressure flash slot (6)；Remaining energy driving load equipment (14) is recycled by hydraulic turbine；
(c) enter heat exchanger (9) from the steam containing fixed gas that high pressure flash slot (6) come out, be fed for heating from scrubbing tower
Pump the water that (13) are come；
The water come out from high pressure flash slot (6) enters after deoxygenation slot (7) deoxygenation and enters heat exchanger by scrubbing tower feed pump (13)
(9) it heats, the water come out after heat exchanger (9) heating enters in scrubbing tower (10), washes to the raw gas come from gasification burner
Wash away dirt；
(d) buck formed in scrubbing tower (10) is pressurized injection gasification burner (1) lower part to coal gas and clinker through chilling water pump (12)
Carry out chilling；
(e) clinker that gasification burner (1) is formed enters slag breaker (2).
8. a kind of coal gasified black water processing system remaining energy recovery method according to claim 5, it is characterised in that: institute
The load equipment (14) stated is generator or pump or other slewings.
9. a kind of coal gasified black water processing system remaining energy recovery method according to claim 5, it is characterised in that: institute
The entrance that the raw gas outlet on gasification burner (1) top stated passes through injector (11) connection scrubbing tower (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610252386.4A CN105754663B (en) | 2016-04-21 | 2016-04-21 | A kind of coal gasified black water processing system remaining energy recovery system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610252386.4A CN105754663B (en) | 2016-04-21 | 2016-04-21 | A kind of coal gasified black water processing system remaining energy recovery system and method |
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| CN107840515A (en) * | 2017-11-24 | 2018-03-27 | 航天长征化学工程股份有限公司 | Slag and grey water treatment system |
| CN115126641A (en) * | 2021-03-26 | 2022-09-30 | 中国石油天然气股份有限公司 | Water injection pipeline power generation system |
| CN115358636B (en) * | 2022-10-18 | 2022-12-27 | 江苏新世嘉家纺高新科技股份有限公司 | Gasification furnace operation state evaluation method and system based on industrial big data |
| CN119616620B (en) * | 2024-12-05 | 2025-08-12 | 西安元创化工科技股份有限公司 | A device and method for grading utilization of residual energy from coal gasification |
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| CN203360396U (en) * | 2013-06-25 | 2013-12-25 | 朱清敏 | Device for producing chemical feed gas by utilizing solid organic material |
| CN203710614U (en) * | 2014-01-01 | 2014-07-16 | 广州欢乐岛康体设备有限公司 | Fatigue-resistant outdoor elliptical machine |
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| CN103373898A (en) * | 2012-04-20 | 2013-10-30 | 新奥科技发展有限公司 | Methanol synthesis process and methanol synthesis system |
| CN203360396U (en) * | 2013-06-25 | 2013-12-25 | 朱清敏 | Device for producing chemical feed gas by utilizing solid organic material |
| CN203710614U (en) * | 2014-01-01 | 2014-07-16 | 广州欢乐岛康体设备有限公司 | Fatigue-resistant outdoor elliptical machine |
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