CN104031688B - The continuous pressure release Slagoff method of slag tap pressurized-gasification furnace and system thereof - Google Patents
The continuous pressure release Slagoff method of slag tap pressurized-gasification furnace and system thereof Download PDFInfo
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Abstract
The invention discloses the continuous pressure release dreg removing system of a kind of slag tap pressurized-gasification furnace and method, solve that complex technical process that existing dreg removing system exists, complex operation, facility investment are high, the problem of poor reliability.Method comprises after High Temperature High Pressure slag that pressurized-gasification furnace generates falls into and carry out water-bath Quench bottom vapourizing furnace, enter dregs breaker fragmentation, high pressure slag after fragmentation enters relief pipe with current, slag-water slurry is when by relief pipe pressure release, the mixture containing high pressure gas and a small amount of thin pulp water produced is sent into exhaust tank and is carried out washing and gas-liquid separation after throttling set reduces pressure further, slag-water slurry after pressure release flows to into slag holding tank, finally enters dragveyer; The discharge pneumatic transmission of described exhaust tank inner top is toward torch, and the pulp water of bottom sends into slag holding tank.Present invention process is simple and reliable, flexible operation is easy, running cost is low, and energy-saving and cost-reducing, present system is simple, facility investment is low, reliability is high, long service life.
Description
Technical field
The present invention relates to gasification field, specifically a kind of pressurized-gasification furnace Slagoff method and system thereof.
Background technology
At present, pressurized-gasification furnace has been widely used in the industries such as chemical industry, metallurgy, machinery.According to the temperature of reaction in vapourizing furnace and lime-ash state, pressurized gasification furnace slag discharge can be divided into dry ash extraction and slag tap: when gasification reaction temperature is lower than the melt temperature of lime-ash, lime-ash will be discharged in solid form; And when the melt temperature of vapourizing furnace temperature of reaction high pressure lime-ash, molten ash can unrestricted flow, lime-ash will be discharged in liquid form.Because pressurized-gasification furnace gasification reaction temperature is general all higher, for coal gasifier, adopt the pressurized-gasification furnace of entrained flow gasification, the temperature of reaction in its vapourizing furnace is up to more than 1600 DEG C, and lime-ash becomes molten state to discharge substantially.Current application widely pressurized entrained-bed coal gasifier generally adopts the form of slag tap.Slag tap major advantage is adopted to be: because gasification reaction temperature is high, can guarantee that the carbonaceous material in raw material fully reacts gasification, ensure high efficiency of carbon conversion; Meanwhile, lime-ash forms vitreum slag through Quench under high temperature fused state, and stable in properties, does not almost affect environment; In addition, form Vitrea slag through Quench and also can be used as cement blending agent or road construction material, further fully utilize.
Current pressurized-gasification furnace slag tap system is all the dreg removing system adopting band lock hopper reliever substantially, and this system exists the shortcoming and defect of the following aspects: 1. vapourizing furnace deslagging mode is that interruption is carried out, and can not realize the tapping process of continous-stable; 2. adopt lock hopper system, need respectively to increase by one group of residual cake valve in lock hopper upstream and downstream, system easily breaks down; 3. lock hopper system is divided into collection slag, decompression, deslagging, cleaning, pressurising five processes, and carries out reciprocation cycle, and operation and control system is complicated; 4. lock hopper dreg removing system investment and process cost high, difficult in maintenance, cost is high.5. lock hopper system process process is complicated, and energy consumption is high, and reliability is not high, and economy is poor.
Summary of the invention
The object of the invention is to solve the problem, providing that a kind of simple and reliable process, flexible operation are easy, running cost is low, energy-saving and cost-reducing slag tap pressurized-gasification furnace continuous pressure release deslagging technique.
The present invention also provides the system of the liquid pressure release deslagging continuously of a kind of pressurized-gasification furnace for above-mentioned technique, has that system is simple, facility investment is low, reliability is high, long service life.
The inventive method is: after the high-temperature slag that pressurized-gasification furnace generates enters and carries out water-bath Quench bottom vapourizing furnace, send into dregs breaker fragmentation (preferred slag is crushed to below 40mm) again, slag after fragmentation forms slag-water slurry and enters relief pipe, slag-water slurry is when by relief pipe pressure release, the mixture containing high pressure gas and a small amount of thin pulp water produced is sent into exhaust tank and is carried out washing and gas-liquid separation after throttling set reduces pressure further, slag-water slurry after pressure release enters slag holding tank through expansion joint, finally enters dragveyer; The discharge pneumatic transmission of described exhaust tank inner top is toward torch, and the pulp water of bottom sends into slag holding tank.
Slag-water slurry after described pressure release is first sent into after hydrocyclone carries out cyclonic separation through expansion joint and is sent into slag holding tank again, and the overflowing liquid that described hydrocyclone top overflows also sends into slag holding tank.
The outlet at bottom of outlet at bottom and slag holding tank that wash-down water sends into hydrocyclone respectively after pressurization is for flushing cinder.
Described relief pipe comprises the inner and outer tubes of suit, and the inwall of described interior pipe is equipped with spiral tube sheet, and the vertical center line along spiral tube sheet has 1 opening; Described inner and outer pipe has multiple vent, and the vent on described outer tube is connected with exhaust tank with throttling set through pipeline; Described slag-water slurry in relief pipe in pipe along spiral tube sheet and opening spiral descending while rapid pressure release decompression, what produce during pressure release contains high pressure gas with a small amount of thin slag-water slurry first by after the vent on interior pipe and the decompression of the vent on outer tube, after pipeline and throttling set are further depressurized, send into exhaust tank again, the slag-water slurry after pressure release enters expansion joint.
The continuous pressure release dreg removing system of slag tap pressurized-gasification furnace of the present invention, comprise pressurized-gasification furnace, described pressurized-gasification furnace is connected with dragveyer with dregs breaker, relief pipe, expansion joint, slag holding tank successively, described relief pipe is also connected with exhaust tank through throttling set, and the outlet at bottom of described exhaust tank is connected with slag holding tank.
Described expansion joint is connected with hydrocyclone, and the top of described hydrocyclone is all connected with slag holding tank with outlet at bottom.
The outlet at bottom of described hydrocyclone and the outlet at bottom of slag holding tank all establish washpipe, and described washpipe is connected with grey water pump through pipeline.
The downward inclination angle of the washpipe bottom described slag holding tank is 15 ~ 60 degree.
Described relief pipe comprises the inner and outer tubes of suit, and described inner and outer pipe has multiple vent, and the vent on described outer tube is connected with throttling set through pipeline.
The inwall of described interior pipe is equipped with spiral tube sheet, and the vertical center line along spiral tube sheet has 1 opening.
Described outer tube evenly has three row's vents vertically, and often row has three vents, along outer tube diameter to uniform in equilateral triangle.
Described interior pipe evenly has 5-15 vertically and arranges vent, and often row has 6 vents, along outer tube diameter to uniform in regular hexagon.
The aperture of the vent on described outer tube is 10 ~ 150mm; The aperture of the vent on described interior pipe is 10 ~ 100mm, and the vent aperture of interior pipe is less than the vent aperture of outer tube.
The aperture of described opening is 50 ~ 200mm, and the clearance control between interior pipe and outer tube is at 50 ~ 150mm.
Contriver conducts in-depth research for existing pressurized-gasification furnace intermittent type pressure release tapping process, find that pressure leak process is the problem place cannot carrying out continuous discharging slag, can be the key solved the problem to the slag sustained release pressure from pressurized-gasification furnace, therefore, applicant improves pressurized-gasification furnace pressure release tapping process, first the slag of the furnace bottom of autopneumatolysis in the future carries out fragmentation, then disintegrating slag is sent in relief pipe, pressure release is carried out while utilizing the special construction of relief pipe and connected devices that slag is fallen in relief pipe, sending into after throttling set reduces pressure further after exhaust tank carries out washing and gas-liquid separation containing high pressure gas and a small amount of carefully mixture of pulp water of producing during pressure release is discharged, thus realize the object of pressure release.
To the impact of equipment when slag is descending under pressure, expansion joint is set in the bottom of relief pipe, to eliminate the stress produced in high pressure slag-water slurry pressure release decompression process.
Because continuous relief pipe is Fatigue equipment, in order to assurance device continous-stable reliability service, described relief pipe can take 1 to open 1 standby collocation form, break down once the relief pipe run and maybe can not realize the object that reduces pressure, be switched to relief pipe for subsequent use immediately, the relief pipe of fault switches out system and overhauls accordingly.
Described exhaust tank can wash the mixture containing high pressure gas and a small amount of thin pulp water sent here and be separated, and gas is discharged by top, and slag-water slurry is discharged by bottom.
The slag of being drawn through expansion joint by relief pipe is owing to passing through fragmentation and pressure release before, therefore the mixture of the tiny slag of part and water can exist with similar suspension emulsion state, be unfavorable for follow-uply dragging for slag operation, can more fully effectively be separated to make pulp water, slag-water slurry after the pressure release of being drawn by expansion joint is sent into hydrocyclone by contriver, utilize the principle of cyclonic separation, eliminate the emulsion admixture of pulp water, make pulp water more easily separated, slag is with gravity by entering slag holding tank bottom swirler, and the overflowing liquid of top overflow also sends into slag holding tank.
The object of wash-down water is introduced in order to cooling down high-temperature pulp water and flushing cinder at the outlet at bottom of hydrocyclone and the outlet at bottom of slag holding tank, reduce high-temperature slag to the infringement of equipment, reduce the material rate of relevant device, also make pulp water discharge more smooth and easy, final guarantee drops to 50 ~ 80 DEG C from the slag water temperature of slag holding tank discharge.
Described relief pipe adopts double-layer sleeve structure, and interior pipe is provided with spiral tube sheet, and the vertical center line along spiral tube sheet has opening.Described inner and outer pipe has multiple vent, and the vent on described outer tube is connected with exhaust tank with throttling set through pipeline.When high pressure slag-water slurry (comprising the solid-liquid-gas three phase mixture of slag, water and the dissolved under pressure high pressure gas in pulp water) is through relief pipe, fall along spiral tube sheet on interior pipe and opening thereof, in dropping process, spiral tube sheet on the one hand on pipe plays spiral depressurization to high pressure slag-water slurry, has delayed the Negotiation speed of pulp water; On the other hand, the high pressure gas discharged that reduce pressure in slag-water slurry can be discharged along the vent of interior pipe with the mixture of a small amount of thin pulp water, interstitial diffusion through inner and outer pipe is formed and once reduces pressure, and then form secondary pressure through the vent feeding pipeline of outer tube through throttling set, the mixture containing high pressure gas and a small amount of thin pulp water produced during decompression sends into exhaust tank washing and gas-liquid separation release after throttling set reduces pressure further, finally serves the effect of the continuous pressure release decompression of high pressure slag-water slurry and object.
Described throttling set can be restriction orifice or the pressure regulator valve of one or more series connection.
Further, preferably, the vent quantity of pipe is more than the vent of outer tube, and the aperture of the vent of interior pipe is less than the vent aperture of outer tube, can improve the effect of decompression like this.In order to ensure even pressure release, on outer tube, vent should evenly have three row's vents along the axis of outer tube, and often row has three vents, along outer tube diameter to uniform in equilateral triangle.And interior pipe evenly has 5-15 row vent vertically, often row has 6 vents, along outer tube diameter to uniform in regular hexagon, specifically can require according to different pressure release the size and the row that control the upper vent of interior pipe, the vent of described interior pipe and the relief pipe of outer tube be not preferably on same horizontal plane.By the restriction in the position arrangement to inner and outer pipe vent, pore size, quantity and inner and outer pipes gap, at utmost can ensure the optimal effectiveness of pressure release, improve pressure release efficiency.
The high pressure slag-water slurry of vapourizing furnace internal pressure 1.0 ~ 6.5MPaG can be decompressed to 0.1 ~ 0.5MPaG by the inventive method continuously, thus realizes continuous discharging slag process.In order to ensure stability and the reliability of depressurized system, described relief pipe adopts 1 to open 1 standby form.
Described wash-down water can for gasification installation follow-up system be through the cooled buck of process, and grey water temp controls at 40 ~ 60 DEG C.
Beneficial effect:
1. method of the present invention eliminates lock hopper system, eliminate costliness and be easy to the solid residual cake valve that breaks down, eliminate dreg-locking hopper recycle pump and slag water cooler simultaneously, change intermittent reduced pressure tapping process in the past for the tapping process that reduces pressure continuously, solve the various problems that intermittent reduced pressure brings.
2. reduce equipment investment cost and process cost, decrease maintenance cost, make operation and control more simple, reduce the failure rate of dreg removing system, improve stability and the reliability of gasification installation operation.
3. utilize exhaust tank relief pressure, collect the waste gas produced in decompression process, by washing separation, pulp water is separated with non-condensable gas, the waste gas that decompression process produces directly is sent to torch burning discharge, without toxic contaminants exhaust gas emission, and process environmental protection, operational safety.
4. utilize expansion joint to reduce pulp water surge pressure, ensure equipment long-period stable operation; Utilize hydrocyclone and slag holding tank to realize pulp water effectively point discrete set slag process, ensure follow-uply to drag for slag operating efficiency; The simplicity of design of relief pipe is ingenious, facility investment is low, pressure release is effective, controllability is high, coordinates exhaust tank effectively can realize the continuous release of pressure.
5. the inventive method technical process is simple, bed drain purge is large, flexible operation is easy, and running cost is low, safe and reliable, energy-saving and cost-reducing.
Accompanying drawing explanation
Fig. 1 is present system figure and process flow sheet;
Fig. 2 is relief pipe A-A diagrammatic cross-section of the present invention;
Fig. 3 is the B portion enlarged view in Fig. 1.
Wherein: 1-pressurized-gasification furnace; 2-dregs breaker; 3-relief pipe, 3.1-outer tube, 3.2-interior pipe, 3.3-spiral tube sheet, 3.4-outer tube vent, 3.5-interior pipe vent, 3.6-opening; 4-expansion joint; 5-hydrocyclone; 6-slag holding tank; 7-dragveyer; 8-slag waggon; 9-throttling set; 10-exhaust tank; 11-grey water pump; 12-washpipe; 13-pulp water pump.
Embodiment
Below in conjunction with accompanying drawing, explanation is further explained to the present invention:
With reference to Fig. 1, the pulp water outlet of pressurized-gasification furnace 1 is connected with dregs breaker 2, relief pipe 3, expansion joint 4, hydrocyclone 5, slag holding tank 6 and dragveyer 7 successively, described relief pipe 3 is also connected with exhaust tank 10 through throttling set 9, described exhaust tank 10 outlet at bottom be also connected with slag holding tank 6 with the top exit of hydrocyclone.The outlet at bottom of described hydrocyclone 5 and the outlet at bottom of slag holding tank 6 all establish washpipe 12, and described washpipe 12 is connected with grey water pump 11 through pipeline.The non-condensable gas outlet of described slag holding tank 6 is also connected with exhaust tank 10, and the downward inclination angle a of the washpipe 12 bottom described slag holding tank 6 is 15 ~ 60 degree.
With reference to Fig. 2, described relief pipe 3 comprises interior pipe 3.2 and the outer tube 3.1 of suit, and described inner and outer pipe 3.1,3.2 has multiple vent, and the outer tube vent 3.4 on described outer tube 3.1 is connected with throttling set 9 through pipeline.The inwall of described interior pipe 3.2 is equipped with spiral tube sheet 3.3, vertical center line along spiral tube sheet has 1 opening 3.6 (aperture is 50 ~ 200mm), the helical channel that the high pressure slag-water slurry fallen can be formed along above-mentioned spiral tube sheet and opening 3.6 thereof rotate descending, extend the falling stroke of high pressure slag-water slurry under unit height in relief pipe 3, play the effect of spiral decompression.Described outer tube 3.1 evenly has three row's vents vertically, and often row has three outer tube vents 3.4, uniform in equilateral triangle along outer tube 3.1 radial direction.Described interior pipe 3.2 evenly has 5-15 vertically and arranges vent, and often row has 6 interior pipe vents 3.5, along outer tube diameter to uniform in regular hexagon.The aperture of the outer tube vent 3.4 on described outer tube 3.1 is 10 ~ 150mm; The aperture of the interior pipe vent 3.5 on described interior pipe 3.2 is 10 ~ 100mm.Gap L between interior pipe 3.2 and outer tube 3.1 controls at 50 ~ 150mm, the aperture of the little outer tube vent 3.4 in aperture of interior pipe vent 3.5.
Technological process:
After the slag of the pressurized-gasification furnace 1 pyroreaction generation of 1.0 ~ 6.5MPaG drops into and carries out water-bath Quench bottom vapourizing furnace 1, bulk slag is after dregs breaker 2 is crushed to and is less than 40mm, disintegrating slag enters into in the relief pipe 3 be connected bottom vapourizing furnace with current (being called for short high pressure slag-water slurry), after through relief pipe 3, pressure release is decompressed to 0.1 ~ 0.5MpaG continuously, enter into relief pipe 3 bottom expansion joint 4 slow down the reactive force of whereabouts, then hydrocyclone 5 sent into together by slag-water slurry, under the effect of hydrocyclone 5, pulp water layering, slag-water slurry is by slag input holding tank 6 bottom hydrocyclone, the overflowing liquid at hydrocyclone 5 top also sends into slag holding tank 6 by top exit, slag is discharged into dragveyer 7 by conduit after being cooled and being cooled to 50 ~ 80 DEG C by last slag-water slurry, and pulled out to slag waggon 8 by dragveyer 7 and be sent to out-of-bounds, drag for the slag bath water after slag and send into reuse after lower procedure process through pulp water pump 13.
Hydrocyclone 5 outlet at bottom is connected with the low temperature buck of 40 ~ 60 DEG C as wash-down water that gasification installation follow-up system is sent here, after grey water pump 11 pressurizes, the outlet at bottom place of hydrocyclone 5 and slag holding tank 3 is sent into respectively through washpipe 12, for flushing cinder and cooling down high-temperature slag-water slurry, ensure that the slag-water slurry of being discharged by slag holding tank 6 is cooled and be cooled to 50 ~ 80 DEG C.
The decompression process of relief pipe 3 is as follows: when the high pressure slag-water slurry after fragmentation enters relief pipe 3, fall along the vent 3.6 on the helical channel formed between interior pipe 3.2 and spiral tube sheet 3.3 and spiral tube sheet, in dropping process, high pressure slag-water slurry rapid depressurization.Meanwhile, because relief pipe 3 is sleeve structure, the tube wall of inner and outer pipes 3.2,3.1 all evenly has vent, the high pressure gas discharged during the pressure release of high pressure slag-water slurry and a small amount of thin pulp water outer tube vent 3.4 successively in interior pipe 3.2 on pipe vent 3.5 and outer tube 3.1 is discharged, due to the current limliting hypotensive effect of vent, also make along the descending rapid pressure release of high pressure slag-water slurry of relief pipe 3.The high pressure gas of being discharged by the outer tube vent 3.4 of outer tube 3.1 and a small amount of thin pulp water send into exhaust tank 10 by after the further step-down of pipeline that is connected with throttling set 9, the pressure of releasing that reduced pressure by relief pipe 3 is discharged by exhaust tank 10, finally realizes decompression and the pressure release object of high pressure pulp water.Exhaust tank 10 can be a column plate type container, the high pressure gas of discharging from relief pipe 3 and a small amount of thin pulp water are washed by from the process water out-of-bounds sent here exhaust tank 10, at exhaust tank 10 top after vapor-liquid separating device is separated, gas is sent to torch burning discharge, and isolated slag-water slurry delivers to slag holding tank 6 by outlet at bottom through back of pipeline.In addition, the non-condensable gas in tank holding tank 6 also can be sent into exhaust tank 10 through non-condensable gas outlet and carry out washing separation.
By above device and measure, serve the effect of continuous for high pressure slag-water slurry pressure release decompression, finally achieve continuous pressure release and the deslagging object of the pressurized-gasification furnace of slag tap.
Claims (14)
1. the continuous pressure release Slagoff method of slag tap pressurized-gasification furnace, it is characterized in that, after the High Temperature High Pressure slag that pressurized-gasification furnace generates enters and carries out water-bath Quench bottom vapourizing furnace, enter dregs breaker fragmentation, high pressure slag after fragmentation enters relief pipe with current, slag-water slurry is when by relief pipe pressure release, the mixture containing high pressure gas and a small amount of thin pulp water produced is sent into exhaust tank and is carried out washing and gas-liquid separation after throttling set reduces pressure further, slag-water slurry after pressure release enters slag holding tank through expansion joint, finally enters dragveyer; The discharge pneumatic transmission of described exhaust tank inner top is toward torch, and the pulp water of bottom sends into slag holding tank.
2. the continuous pressure release Slagoff method of slag tap pressurized-gasification furnace as claimed in claim 1, it is characterized in that, slag-water slurry after described pressure release is first sent into after hydrocyclone carries out cyclonic separation through expansion joint and is sent into slag holding tank again, and the overflowing liquid that described hydrocyclone top overflows also sends into slag holding tank.
3. the continuous pressure release Slagoff method of slag tap pressurized-gasification furnace as claimed in claim 2, is characterized in that, the outlet at bottom of outlet at bottom and slag holding tank that wash-down water sends into hydrocyclone respectively after pressurization is for flushing cinder and deslagging.
4. the continuous pressure release Slagoff method of the slag tap pressurized-gasification furnace as described in any one of claim 1-3, it is characterized in that, described relief pipe comprises the inner and outer tubes of suit, and the inwall of described interior pipe is equipped with spiral tube sheet, and the vertical center line along spiral tube sheet has 1 opening; Described inner and outer pipe has multiple vent, and the vent on described outer tube is connected with exhaust tank with throttling set through pipeline; Rapid pressure release decompression while described slag-water slurry pipe in relief pipe is descending along the opening spiral at spiral tube sheet and center thereof, what produce during pressure release contains high pressure gas with a small amount of thin slag-water slurry first by after the vent on interior pipe and the decompression of the vent on outer tube, after pipeline and throttling set are further depressurized, send into exhaust tank again, the slag-water slurry after pressure release enters expansion joint.
5. the continuous pressure release dreg removing system of slag tap pressurized-gasification furnace, comprise pressurized-gasification furnace, it is characterized in that, described pressurized-gasification furnace is connected with dragveyer with dregs breaker, relief pipe, expansion joint, slag holding tank successively, described relief pipe is also connected with exhaust tank through throttling set, and the outlet at bottom of described exhaust tank is connected with slag holding tank.
6. the continuous pressure release dreg removing system of slag tap pressurized-gasification furnace as claimed in claim 5, it is characterized in that, described expansion joint is connected with hydrocyclone, and the top of described hydrocyclone is all connected with slag holding tank with outlet at bottom.
7. the continuous pressure release dreg removing system of slag tap pressurized-gasification furnace as claimed in claim 6, it is characterized in that, the outlet at bottom of described hydrocyclone and the outlet at bottom of slag holding tank all establish washpipe, and described washpipe is connected with grey water pump through pipeline.
8. the continuous pressure release dreg removing system of slag tap pressurized-gasification furnace as claimed in claim 5, it is characterized in that, the downward inclination angle of the washpipe bottom described slag holding tank is 15 ~ 60 degree.
9. the continuous pressure release dreg removing system of the slag tap pressurized-gasification furnace as described in any one of claim 5-8, it is characterized in that, described relief pipe comprises the inner and outer tubes of suit, and described inner and outer pipe has multiple vent, and the vent on described outer tube is connected with throttling set through pipeline.
10. the continuous pressure release dreg removing system of slag tap pressurized-gasification furnace as claimed in claim 9, it is characterized in that, the inwall of described interior pipe is equipped with spiral tube sheet, and the vertical center line along spiral tube sheet has 1 opening.
The continuous pressure release dreg removing system of 11. slag tap pressurized-gasification furnace as claimed in claim 9, it is characterized in that, described outer tube evenly has three row's vents vertically, and often row has three vents, along outer tube diameter to uniform in equilateral triangle.
The continuous pressure release dreg removing system of 12. slag tap pressurized-gasification furnace as claimed in claim 9, is characterized in that, described interior pipe evenly has 5-15 vertically and arranges vent, and often row has 6 vents, along outer tube diameter to uniform in regular hexagon.
The continuous pressure release dreg removing system of 13. slag tap pressurized-gasification furnace as claimed in claim 9, it is characterized in that, the aperture of the vent on described outer tube is 10 ~ 150mm; The aperture of the vent on described interior pipe is 10 ~ 100mm, and the aperture of interior pipe vent is less than the aperture of outer tube vent.
The continuous pressure release dreg removing system of 14. slag tap pressurized-gasification furnace as claimed in claim 10, it is characterized in that, the aperture of described opening is 50 ~ 200mm, and the clearance control between interior pipe and outer tube is at 50 ~ 150mm.
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| CN104848036A (en) * | 2015-05-14 | 2015-08-19 | 曹显奎 | System for continuously decompressing high pressure fluid containing solid particles |
| CN106568091B (en) * | 2015-10-08 | 2018-07-27 | 中石化广州工程有限公司 | A kind of online deslagging method of torch cylinder and device |
| CN106833756A (en) * | 2015-12-04 | 2017-06-13 | 大唐国际化工技术研究院有限公司 | The residue extraction mechanism and Slagoff method of a kind of solid slag discharging gasifying furnace |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1888028A (en) * | 2006-07-12 | 2007-01-03 | 太原海力丰科技发展有限公司 | Crushed coal pressure gasifying process for producing synthetic gas |
| CN201232055Y (en) * | 2008-01-23 | 2009-05-06 | 中国科学技术大学 | Pressurized entrained-bed gasifying device for high ash fusion temperature coal |
| CN203866265U (en) * | 2014-05-29 | 2014-10-08 | 中国五环工程有限公司 | Continuous pressure relief and slag discharge system for slag tapping of pressure gasification furnace |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1888028A (en) * | 2006-07-12 | 2007-01-03 | 太原海力丰科技发展有限公司 | Crushed coal pressure gasifying process for producing synthetic gas |
| CN201232055Y (en) * | 2008-01-23 | 2009-05-06 | 中国科学技术大学 | Pressurized entrained-bed gasifying device for high ash fusion temperature coal |
| CN203866265U (en) * | 2014-05-29 | 2014-10-08 | 中国五环工程有限公司 | Continuous pressure relief and slag discharge system for slag tapping of pressure gasification furnace |
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