CN103509606A - Powdered coal and coal slurry composite coal gasification device and technical method - Google Patents
Powdered coal and coal slurry composite coal gasification device and technical method Download PDFInfo
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- CN103509606A CN103509606A CN201310465335.6A CN201310465335A CN103509606A CN 103509606 A CN103509606 A CN 103509606A CN 201310465335 A CN201310465335 A CN 201310465335A CN 103509606 A CN103509606 A CN 103509606A
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Abstract
The invention discloses a powdered coal and coal slurry composite coal gasification device and a technical method. The device comprises a furnace body, wherein a burner injector is arranged at the top of the furnace body; a water-cooled wall is mounted at the upper part in the furnace body in a sleeving manner; the cavity of the water-cooled wall forms a gasification chamber; the bottom of the water-cooled wall is connected with a gas -liquid baffling separation device; a synthesis gas chilling device is arranged in the joint of the water-cooled wall and the gas - liquid baffling separation device; the gas -liquid baffling separation device is connected with a downtake; a jacketed gas guide pipe is mounted on the outer surface of the downtake in a sleeving manner; a synthesis gas cooling chamber is formed between the gas guide pipe and the downtake; a sealed annular cavity is formed between the water-cooled wall and the furnace body. The device has the advantages that the equipment structure is novel, the technology is simple, the efficiency is high, the service life is long, the process cooling air can be reutilized, the system coal slurry can be settled and recycled, the cost is reduced, and the device is safe and stable in operation on the premise that the requirements of a process device are satisfied.
Description
Technical field
The present invention relates to a kind of novel energy-conserving coal gasification production technique device; Be particularly related to a kind of fine coal, coal slurry composite briquette gasification installation and processing method.
Background technology
Gasification is an important directions of coal utilization technology, and it is that coal is converted into inflammable gas or the industrial chemicals of being convenient to burning, and its main component is the gas mixture of carbon monoxide and hydrogen.
At present, there is drawback in high-effective gas gasifying device: 1. in dried coal powder gasification installation, gasified raw material is that single dried coal powder single fire mouth or branched burner spray combustion, gasification generate crude synthesis gas, in the Heisui River that crude synthesis gas forms through circulating water washing, with a large amount of carbon components, be not utilized effectively, cause waste; 2. coal water slurry gasifying device is that coal slurry carburation by spraying generates crude synthesis gas, and vapourizing furnace is the vaporizer structure of laying bricks, and furnace wall is about 1 year work-ing life, changes that expense is higher, the cycle is long; And coal water slurry process is larger to the demand of a water.
Summary of the invention
The shortcoming existing in order to solve prior art, the present invention specifically discloses a kind of fine coal, coal slurry composite briquette gasification installation and processing method.
The present invention is by the following technical solutions:
The composite briquette gasification installation that a kind of fine coal, coal slurry are raw material, comprise a body of heater, the top of body of heater is provided with a burner injector, body of heater Nei top is set with water wall, cavity in water wall forms vaporizer, the bottom of described water wall connects the baffle separation device of gas-liquid, and in both junctions, is provided with a synthetic gas chilling device; The baffle separation device of described gas-liquid connects a downtake, downtake outside is set with a jacketed type gas channeling pipe, between gas channeling pipe and downtake, form synthetic gas cooling room, between described water wall and body of heater, form the annular cavity of sealing, on the outer wall of body of heater, be provided with a protection gas import communicating with annular cavity, at the top of body of heater, be provided with the outlet of a protection gas and by pipeline, be incorporated on described burner injector scavenging line; On described furnace body outer wall, be also provided with the syngas outlet communicating with the external world, the bottom of body of heater is provided with slag notch.
The inner side of described water wall is the refractory materials that is coated with of notch cuttype, and refractory materials is fixed on water wall coil pipe by staple.
Between described water wall and the top of body of heater, by flexible expansion ring, seal, between the bottom of water wall and body of heater, pass through seal ring seal.
Described burner injector comprises the first sleeve, the second sleeve, the 3rd sleeve, quadruplet cylinder, the 5th sleeve being set in together successively from inside to outside, and separate between each sleeve, not connected; And from top to bottom successively the first sleeve higher than the second sleeve, the second sleeve higher than the 3rd sleeve, the 3rd sleeve higher than quadruplet cylinder, quadruplet cylinder higher than the 5th sleeve, and be bolted each other; Top at the first described sleeve is provided with lighter for ignition interface; Sidewall at the second sleeve is provided with igniting oxygen inlet, at the sidewall of the 3rd sleeve, is provided with the coal slurry oxygen/oxygen inlet that goes into operation and the import of exitting of speeding; At quadruplet cylinder, be provided with coal slurry import, cooling water outlet I, entrance of cooling water I; On the 5th described sleeve, be provided with fine coal oxygen/steam inlet, fine coal import, entrance of cooling water II and cooling water outlet II and in the 5th sleeve, be also provided with coal dust guide flight.
The compound burner emitter construction of fine coal and coal slurry feed, the fine coal charging of burner injector and coal slurry charging are set to separately independently passage, and two kinds of materials can spray separately also spray combustion gasification simultaneously.
The water wall of described vaporizer is integral type coil wall, it comprises some heat transfer tubes, described heat transfer tube coiling is arranged and is formed a cavity, welded seal between adjacent heat exchange tubes, described cavity inner wall is according to the different refractory masses that cover different thickness of the smooth temperature of work, described refractory masses is fixed with staple, and described staple evenly interlocks and is radiation formula distribution along cavity inner wall; The bottom of described water wall is by several seat supports, and described bearing is symmetrical along even circumferential.
In described refractory materials, be embedded with thermocouple wire, described thermocouple wire is through being connected with a temperature signal terminal box to its fixing threaded hole, permanent seat, adapter, tongued and grooved flanges, and described temperature signal terminal box is connected with temperature monitoring system.
Described protection gas system is that annular cavity cooling protection gas is guided on burner injector scavenging line, does and purges protection gas use, saves cold gas, effectively improves the purity of synthetic gas simultaneously.
Described temperature monitoring system (thermocouple wire is imbedded in water wall coil pipe SiC refractory materials protective layer, is sent to Control Room by sensor-based system) can detect vapourizing furnace fire box temperature timely and effectively, guarantees the safe and stable operation of device.
The processing method of described device is as follows:
From the coal dust of feed coal system and the coal slurry after the sedimentation of system Heisui River, by line of pipes, delivered to the burner injector of gasification installation, the centerfire of burner injector, igniting comburant oxygen; The oxygen that goes into operation speeds to exit ratio combustion when being warming up to 750 ℃ ~ 850 ℃, system pressure and being increased to 1.0MPa with going into operation, and fine coal and coal slurry are along the passage ejection separately of burner injector, with technique oxygen/vapor mixing high-temp combustion; The charging of injector fine coal is single tangential screw charging, and material enters to be delivered to injector end along flight spiral after dedicated tunnel and evenly spray high-temp combustion from fine coal channel outlet; Water coolant adopts normal temperature to supply water, and two-way is cooling, protection burner injector.The coal charge anoxycausis in vaporizer that is ejected into vaporizer forms slag, synthetic gas etc., part slag runs into water wall cooled and solidified and is attached on water wall, most of slag enters synthetic gas cooling room with gas is dirty by vaporizer end opening, after Quench by synthetic gas chilling device, slag forms solid slag while gas and is significantly lowered the temperature, Gu slag enters and carries out purification and washing in synthesis gas washing water-bath along downtake, slag is cooling discharges from lower cinder notch, synthetic gas after purification and washing rises and under the effect of jacketed type gas cooling liner, carries out cooling and one-level gas-liquid separation along gas operated device, gas rising arrives the baffle separation device of gas-liquid and carries out after the second-order separation, seek syngas outlet and send into subsequent processing.
Described protection gas is sent into by the import of annular cavity protection gas; protection gas enters annular cavity and draws by connection line and guide on burner injector scavenging line along the outlet at annular cavity top; do and purge protection gas use, save cooling tolerance, effectively improve the gas purity of synthetic gas.
Temperature monitoring system device, thermopair is all embed type, thermocouple wire is imbedded in refractory materials protective layer, refractory materials is fixed on water wall coil pipe by staple, Refractory Thermal Conductivity is higher, can reflect exactly the temperature of vapourizing furnace burner hearth, and protect the work-ing life of thermopair, raising; Between thermocouple wire and permanent seat, be the form of being threaded, can connect the tongued and grooved flanges mouth of pipe by shell wall the thermocouple wire damaging is changed.
The invention has the beneficial effects as follows:
The present invention is meeting under the prerequisite of process unit demand, and device structure is novel, technique is simple, efficiency is high, long service life, technique cold gas second stage employ, the sedimentation of system coal slurry are recycled, cost-saving, and operating safety is stable.
Accompanying drawing explanation
Fig. 1 one-piece construction schematic diagram of the present invention;
The enlarged view of Fig. 2 cooling stave part;
The concrete structure figure of Fig. 3 burner injector;
Fig. 4 is the sectional view of figure A part;
The structure iron of Fig. 5 thermocouple wire connection portion;
In figure: 1 burner injector, 2 flexible expansion rings, 3 vaporizers, 4 water wall, 5 wear rings, 6 synthetic gas chilling devices, 7 synthetic gas cooling rooms, 8 jacketed type gas channeling pipes, 9 downtakes, the baffle separation device of 10 gas-liquid, 11 syngas outlet, 12 slag notches, 13 protection gas imports, 14 refractory materialss, 15 refractory materials staples, 16 protection gas outlets, 17 synthesis gas washing water-baths, 18 first sleeves, 19 second sleeves, 20 the 3rd sleeves, 21 quadruplet cylinders, 22 the 5th sleeves, 23 lighter for ignition interfaces, 24 igniting oxygen inlet, 25 coal slurry oxygen/oxygen inlet goes into operation, 26 coal slurry imports, 27 cooling water outlet I, 28 fine coal imports, 29 entrance of cooling water I, 30 cooling water outlet II, 31 fine coal oxygen/steam inlets, 32 entrance of cooling water II, 33 imports of exitting of speeding, 34 speed venting outlets, 35 igniting oxygen outlets, 36 coal slurry outlets, 37 coal slurry oxygen/oxygen outlet goes into operation, 38 fine coal oxygen/vapour outlets, 39 fine coal outlets, 40 fine coal guide flights, 41 thermocouple wires, 42 permanent seats, 43 take over, 44 thermocouple wire lead-in wires, 45 tongued and grooved flanges, 46 sealing flange covers, 47 temperature signal terminal boxes.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further elaborated, should be noted that following explanation is only in order to explain the utility model, does not limit its content.
As Fig. 1, 2, 3, 4, shown in 5, device comprises a body of heater, the top of body of heater is provided with a burner injector 1, body of heater Nei top is set with water wall 4, cavity in water wall 4 forms vaporizer 3, the bottom of described water wall 4 connects the baffle separation device 10 of gas-liquid, the baffle separation device 10 of described gas-liquid connects a downtake 9, downtake 9 outsides are set with a jacketed type gas channeling pipe 8, between gas channeling pipe and downtake 9, form synthetic gas cooling room 7, between described water wall 4 and body of heater, form the annular cavity of sealing, on the outer wall of body of heater, be provided with a protection gas import 13 communicating with annular cavity, at the top of body of heater, be provided with protection gas outlet 16 and by pipeline, be incorporated on described burner injector scavenging line, on described furnace body outer wall, be also provided with the syngas outlet 11 communicating with the external world, the bottom of body of heater is provided with slag notch 12.
What the inner side of described water wall 4 was notch cuttype is coated with refractory materials 14, and refractory materials 14 is fixed on water wall coil pipe by refractory materials staple 15;
Between described water wall and the top of body of heater, by 2 sealings of flexible expansion ring, between the bottom of water wall and body of heater, by wear ring 5, seal.
Described burner injector comprises the first sleeve 18, the second sleeve 19, the 3rd sleeve 20, quadruplet cylinder 21 and the 5th sleeve 22 being set in together successively from inside to outside, and separate between each sleeve, not connected; And from top to bottom successively the first sleeve 18 higher than the second sleeve 19, the second sleeve 19 higher than the 3rd sleeve 20, the 3rd sleeve 20 higher than quadruplet cylinder 21, quadruplet cylinder 21 higher than the 5th sleeve 22, and be bolted each other; At the first described sleeve 18 top, be provided with lighter for ignition interface 23; At the sidewall of the second sleeve, be provided with igniting oxygen inlet 24, at the sidewall of the 3rd sleeve, be provided with the coal slurry oxygen/oxygen inlet that goes into operation 25 and the import 33 of speeding to exit; At quadruplet cylinder, be provided with coal slurry import 26, cooling water outlet I27, entrance of cooling water I29; On the 5th described sleeve, be provided with fine coal oxygen/steam inlet 31, fine coal import 28, entrance of cooling water II32 and cooling water outlet II30 and in the 5th sleeve, be also provided with coal dust guide flight 40.
The bottom corresponding with each sleeve is respectively equipped with the venting outlet 34 of speeding, igniting oxygen outlet 35, coal slurry outlet 36, the coal slurry oxygen/oxygen outlet 37 that goes into operation, fine coal oxygen/vapour outlet 38, fine coal outlet 39.
The compound burner emitter construction of fine coal and coal slurry feed, the fine coal charging of burner injector and coal slurry charging are set to separately independently passage, and two kinds of materials can spray separately also spray combustion gasification simultaneously.
The water wall of described vaporizer is integral type coil wall, it comprises some heat transfer tubes, described heat transfer tube coiling is arranged and is formed a cavity, welded seal between adjacent heat exchange tubes, described cavity inner wall is according to the different refractory masses that cover different thickness of the smooth temperature of work, described refractory masses is fixed with staple, and described staple evenly interlocks and is radiation formula distribution along cavity inner wall; The bottom of described water wall is by several seat supports, and described bearing is symmetrical along even circumferential.
In described refractory materials, be embedded with thermocouple wire 41, described thermocouple wire 41 by thermocouple wire go between 44 through to its fixing threaded hole, permanent seat 42, take over 43, tongued and grooved flanges 45 is connected with a temperature signal terminal box 47, described temperature signal terminal box is connected with temperature monitoring system.
Described tongued and grooved flanges 45 is provided with sealing flange cover 46.
Described protection gas system is that annular cavity cooling protection gas is guided on burner injector scavenging line, does and purges protection gas use, saves cold gas, effectively improves the purity of synthetic gas simultaneously.
Described temperature monitoring system (thermocouple wire is imbedded in water wall coil pipe SiC refractory materials protective layer, is sent to Control Room by sensor-based system) can detect vapourizing furnace fire box temperature timely and effectively, guarantees the safe and stable operation of device.
From the coal dust of feed coal system and the coal slurry after system sedimentation, by line of pipes, deliver to composite briquette burner, burner injector 1 centerfire comburant oxygen; The oxygen that goes into operation speeds to exit ratio combustion when being warming up to 750 ℃ ~ 850 ℃, system pressure and being increased to 1.0MPa with going into operation, and fine coal and coal slurry are along the passage ejection separately of burner injector, with technique oxygen/vapor mixing high-temp combustion; The charging of injector fine coal is single tangential screw charging, and material enters to be delivered to injector end along flight spiral after dedicated tunnel and evenly spray high-temp combustion from fine coal channel outlet; Water coolant adopts normal temperature to supply water, and two-way is cooling, protection burner injector.The coal charge anoxycausis in vaporizer that is ejected into vaporizer 3 forms slag, synthetic gas etc., part slag runs into water wall 4 cooled and solidified and is attached on water wall, most of slag enters synthesis gas washing cooling room 7 with gas is dirty by vaporizer end opening, after Quench by synthetic gas chilling device 6, slag forms the significantly cooling of arriving of solid slag while gas, and enter and in synthesis gas washing water-bath 17, carry out purification and washing along downtake 9, the cooling discharge of slag, synthetic gas after purification and washing rises and under the effect of jacketed type gas cooling liner 8, carries out cooling and one-level gas-liquid separation along jacketed type means for guiding gas 8, gas rising arrives the baffle separation device 10 of gas-liquid and carries out after the second-order separation, seek syngas outlet and send into lower operation.
Protection gas is sent into by annular cavity protection gas import 13; protection gas enters annular cavity and draws by connection line and guide on burner injector scavenging line along the outlet at annular cavity top; do road and purge protection gas use, save cooling tolerance, effectively improve the gas purity of synthetic gas.
Temperature monitoring system device, thermopair is all embed type, thermocouple wire is imbedded in refractory materials 14 protective layers, refractory materials is fixed on water wall coil pipe by staple, refractory materials 14 thermal conductivitys are higher, can reflect exactly the temperature of vapourizing furnace burner hearth, and protect the work-ing life of thermopair, raising; Between thermocouple wire and permanent seat, be the form of being threaded, can connect the tongued and grooved flanges mouth of pipe by shell wall the thermocouple damaging is changed.
The present invention is meeting under the prerequisite of process unit demand, and device structure is novel, technique is simple, efficiency is high, long service life, technique cold gas second stage employ, the sedimentation of system coal slurry are recycled, cost-saving, and operating safety is stable.
Claims (7)
1. a fine coal, coal slurry composite briquette gasification installation, comprise a body of heater, it is characterized in that: the top of body of heater is provided with a burner injector, body of heater Nei top is set with water wall, cavity in water wall forms vaporizer, and the bottom of described water wall connects the baffle separation device of gas-liquid and in both junctions, is provided with a synthetic gas chilling device; The baffle separation device of described gas-liquid connects a downtake, downtake outside is set with a jacketed type gas channeling pipe, between gas channeling pipe and downtake, form synthetic gas cooling room, between described water wall and body of heater, form the annular cavity of sealing, on the outer wall of body of heater, be provided with a protection gas import communicating with annular cavity, at the top of body of heater, be provided with the outlet of a protection gas and by pipeline, be incorporated on described burner injector scavenging line; On described furnace body outer wall, be also provided with the syngas outlet communicating with the external world, the bottom of body of heater is provided with slag notch.
2. device as claimed in claim 1, is characterized in that: the inner side of described water wall is the refractory materials that is coated with of notch cuttype, and refractory materials is fixed on water wall coil pipe by staple.
3. device as claimed in claim 1, is characterized in that: between described water wall and the top of body of heater, by flexible expansion ring, seal, between the bottom of water wall and body of heater, pass through seal ring seal.
4. device as claimed in claim 1, it is characterized in that: described burner injector comprises the first sleeve, the second sleeve, the 3rd sleeve, quadruplet cylinder, the 5th sleeve being set in together successively from inside to outside, and separate between each sleeve, not connected; And from top to bottom successively the first sleeve higher than the second sleeve, the second sleeve higher than the 3rd sleeve, the 3rd sleeve higher than quadruplet cylinder, quadruplet cylinder higher than the 5th sleeve, and be bolted each other; Top at the first described sleeve is provided with lighter for ignition interface; Sidewall at the second sleeve is provided with igniting oxygen inlet, at the sidewall of the 3rd sleeve, is provided with the coal slurry oxygen/oxygen inlet that goes into operation and the import of exitting of speeding; At quadruplet cylinder, be provided with coal slurry import, cooling water outlet I, entrance of cooling water I; On the 5th described sleeve, be provided with fine coal oxygen/steam inlet, fine coal import, entrance of cooling water II and cooling water outlet II and in the 5th sleeve, be also provided with coal dust guide flight.
5. device as claimed in claim 1, it is characterized in that: the water wall of described vaporizer is integral type coil wall, it comprises some heat transfer tubes, described heat transfer tube coiling is arranged and is formed a cavity, welded seal between adjacent heat exchange tubes, described cavity inner wall is according to the different refractory masses that cover different thickness of the smooth temperature of work, and described refractory masses is fixed with staple, and described staple distributes along the even staggered radiation formula that is of cavity inner wall; The bottom of described water wall is by several seat supports, and described bearing is symmetrical along even circumferential.
6. device as claimed in claim 1, it is characterized in that: in described refractory materials, be embedded with thermocouple wire, described thermocouple wire goes between through its fixing threaded hole, permanent seat, adapter, tongued and grooved flanges are connected with a temperature signal terminal box by thermocouple wire, and described temperature signal terminal box is connected with temperature monitoring system.
7. the processing method of device as claimed in claim 1, is characterized in that, as follows:
From the coal dust of feed coal system and the coal slurry after the sedimentation of system Heisui River, by line of pipes, delivered to the burner injector of gasification installation, the centerfire of burner injector, igniting comburant oxygen; The oxygen that goes into operation speeds to exit ratio combustion when being warming up to 750 ℃ ~ 850 ℃, system pressure and being increased to 1.0MPa with going into operation, and fine coal and coal slurry are along the passage ejection separately of burner injector, with technique oxygen/vapor mixing high-temp combustion; The charging of injector fine coal is single tangential screw charging, and material enters to be delivered to injector end along flight spiral after dedicated tunnel and evenly spray high-temp combustion from fine coal channel outlet; Water coolant adopts normal temperature to supply water, and two-way is cooling, protection burner injector;
The coal charge anoxycausis in vaporizer that is ejected into vaporizer forms slag, synthetic gas etc., part slag runs into water wall cooled and solidified and is attached on water wall, most of slag enters synthetic gas cooling room with gas is dirty by vaporizer end opening, after Quench by synthetic gas chilling device, slag forms solid slag while gas and is significantly lowered the temperature, Gu slag enters and carries out purification and washing in synthesis gas washing water-bath along downtake, slag is cooling discharges from lower cinder notch, synthetic gas after purification and washing rises and under the effect of jacketed type gas cooling liner, carries out cooling and one-level gas-liquid separation along gas operated device, gas rising arrives the baffle separation device of gas-liquid and carries out after the second-order separation, seek syngas outlet and send into subsequent processing,
Protection gas is by protecting gas import to send into, and protection gas enters annular cavity and draws by connection line and guide on burner injector scavenging line along the outlet at annular cavity top, does and purges protection gas use.
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| CN201310465335.6A CN103509606B (en) | 2013-09-30 | 2013-09-30 | Powdered coal and coal slurry composite coal gasification device and technical method |
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| CN201310465335.6A CN103509606B (en) | 2013-09-30 | 2013-09-30 | Powdered coal and coal slurry composite coal gasification device and technical method |
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| CN103509606B CN103509606B (en) | 2014-11-19 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104099136A (en) * | 2014-08-04 | 2014-10-15 | 鲁西集团有限公司 | Multi-element combustion compound type coal gasification device and process method |
| CN116064173A (en) * | 2023-02-16 | 2023-05-05 | 山东兖矿国拓科技工程股份有限公司 | Water-coal-slurry process burner |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102643678A (en) * | 2012-04-25 | 2012-08-22 | 神华集团有限责任公司 | Pulverized coal or water coal slurry gasification furnace system |
| CN102203222B (en) * | 2009-12-25 | 2013-03-20 | 航天长征化学工程股份有限公司 | Highly efficient and clean gasification apparatus for carbonaceous dry powder and method thereof |
-
2013
- 2013-09-30 CN CN201310465335.6A patent/CN103509606B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102203222B (en) * | 2009-12-25 | 2013-03-20 | 航天长征化学工程股份有限公司 | Highly efficient and clean gasification apparatus for carbonaceous dry powder and method thereof |
| CN102643678A (en) * | 2012-04-25 | 2012-08-22 | 神华集团有限责任公司 | Pulverized coal or water coal slurry gasification furnace system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104099136A (en) * | 2014-08-04 | 2014-10-15 | 鲁西集团有限公司 | Multi-element combustion compound type coal gasification device and process method |
| CN104099136B (en) * | 2014-08-04 | 2015-04-08 | 鲁西集团有限公司 | Multi-element combustion compound type coal gasification device and process method |
| CN116064173A (en) * | 2023-02-16 | 2023-05-05 | 山东兖矿国拓科技工程股份有限公司 | Water-coal-slurry process burner |
| CN116064173B (en) * | 2023-02-16 | 2023-08-25 | 山东兖矿国拓科技工程股份有限公司 | Water-coal-slurry process burner |
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Application publication date: 20140115 Assignee: Luxi Chemical Group Co., Ltd. Assignor: Zhang Wen Contract record no.: 2015370000079 Denomination of invention: A kind of fine coal, coal slurry composite briquette gasification installation and processing method Granted publication date: 20141119 License type: Exclusive License Record date: 20150506 |
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