CN110441491A - Coal seed gasification evaluating apparatus and method - Google Patents
Coal seed gasification evaluating apparatus and method Download PDFInfo
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- CN110441491A CN110441491A CN201810419379.8A CN201810419379A CN110441491A CN 110441491 A CN110441491 A CN 110441491A CN 201810419379 A CN201810419379 A CN 201810419379A CN 110441491 A CN110441491 A CN 110441491A
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- 238000002309 gasification Methods 0.000 title claims abstract description 209
- 239000003245 coal Substances 0.000 title claims abstract description 116
- 238000000034 method Methods 0.000 title claims abstract description 61
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 155
- 239000002817 coal dust Substances 0.000 claims abstract description 98
- 238000010791 quenching Methods 0.000 claims abstract description 50
- 238000010438 heat treatment Methods 0.000 claims abstract description 42
- 239000002893 slag Substances 0.000 claims abstract description 42
- 238000011156 evaluation Methods 0.000 claims abstract description 20
- 238000005406 washing Methods 0.000 claims abstract description 20
- 239000002699 waste material Substances 0.000 claims abstract description 14
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 13
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 12
- 239000000498 cooling water Substances 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 239000002351 wastewater Substances 0.000 claims abstract description 7
- 239000003250 coal slurry Substances 0.000 claims description 43
- 238000012545 processing Methods 0.000 claims description 25
- 230000003009 desulfurizing effect Effects 0.000 claims description 18
- 238000004537 pulping Methods 0.000 claims description 16
- 239000003795 chemical substances by application Substances 0.000 claims description 14
- 238000005201 scrubbing Methods 0.000 claims description 14
- 238000004064 recycling Methods 0.000 claims description 5
- 239000011449 brick Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 230000008676 import Effects 0.000 claims description 3
- 230000001939 inductive effect Effects 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 10
- 230000035699 permeability Effects 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 79
- 238000004458 analytical method Methods 0.000 description 18
- 230000008569 process Effects 0.000 description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 10
- 239000001301 oxygen Substances 0.000 description 10
- 229910052760 oxygen Inorganic materials 0.000 description 10
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- 229910052799 carbon Inorganic materials 0.000 description 7
- 229910002092 carbon dioxide Inorganic materials 0.000 description 7
- 230000008859 change Effects 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 5
- 239000002002 slurry Substances 0.000 description 5
- 239000006200 vaporizer Substances 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical group O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000005094 computer simulation Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/22—Fuels; Explosives
- G01N33/222—Solid fuels, e.g. coal
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
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- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The invention belongs to coal seed gasifications to evaluate field, disclose a kind of coal seed gasification evaluating apparatus and method, wherein the coal seed gasification evaluating apparatus includes feeding system, gasification system, washing desulphurization system, heating induced draught system, Quench water system and slag water treatment system；The feeding system gasifies for coal dust to be delivered to the gasification system, chilled water needed for gasification is provided by the Quench water system, the synthesis gas generated after gasification is analyzed after the washing desulphurization system by online gc, and the waste liquid that generates and waste residue are handled through the slag water treatment system after gasification, and the gas cooling water of treated waste water and the heating induced draught system is transmitted back to the chilled water system circulation together and uses.The present invention is the evaluation realized in a manner of low cost to coal seed gasification index, is reduced because of the huge engineering risk of gasification technology select permeability bring.
Description
Technical field
The invention belongs to coal seed gasifications to evaluate field, more particularly to a kind of coal seed gasification evaluating apparatus and method.
Background technique
Document " Coal Gasification Technology selection modest proposal " indicates the importance of Coal Gasification Technology selection and has thorough grasp coal gasification spy
Property, but (viscosity of reactivity, ash content height, ash composition, ash fusion point, lime-ash including coal-temperature is special for coal gasification characteristic
Linearity curve etc.) although can be obtained in lab analysis, since sample size is few, obtained data cannot really meet engineering
It needs, it can only be for reference.In addition, though gasification process process can also use computer simulation now, but since coal quality is complicated,
Simulation process can bring biggish error because of the selection of some models, and lead to the problem of during practical gasification process, such as
Blocking, poor, the mechanical failure of dust removing effects etc. are also that simulation can not be found.
The pressure gasification process of one kind disclosed in CN104531219B while gasification powdered coal and water-coal-slurry, by using special
Gasification furnace, can simultaneous processing water-coal-slurry and fine coal, invention have stronger coal adaptability, solve existing water-coal-slurry gas
Active principle is not high in chemical industry skill synthesis gas, the requirement of as-fired coal matter is high, the Water-coal-slurry nozzle service life is short, single furnace runing time is short, resistance to
The problems such as firebrick service life is short, coal-water fluid concentration is low, while solving that the investment of existing fine coal gasification process is big, the device is complicated, comprehensive energy consumption
The problems such as high.But the technique has the following problems: (1) its fine coal burner arrangement quantity is 3-6, and it is defeated that coal dust belongs to multithreading
It send, control process is complex and difficulty is larger；(2) gasified coal water slurry and fine coal, in-furnace temperature are difficult to control simultaneously in gasification furnace
System, refractory brick and burner service life are shorter；(3) higher to coal quality requirements, because if two kinds of coal quality gasification property differences are biggish
Words (i.e. the temperature-viscosity curve difference of slag is larger), part slag does not become slag under same operation temperature, it is easy to solidify
On gasification stove internal wall.
Therefore, it needs further to research and develop for the research of the method for coal seed gasification evaluation.
Summary of the invention
The purpose of the present invention is the mechanical performances of gasification property and some crucial equipment for gasification for evaluating coal, are coal
The gasification technology selection of kind provides reference, may be simultaneously used for the synthesis gas production of small-sized carbon-containing fuel and provides a kind of coal
Gasify evaluating apparatus and method, and this method can realize the evaluation to coal seed gasification index in a manner of low cost, reduce because
The huge engineering risk of gasification technology select permeability bring.
To achieve the goals above, one aspect of the present invention provides a kind of coal seed gasification evaluating apparatus, wherein the coal gas
Changing evaluating apparatus includes at feeding system, gasification system, washing desulphurization system, heating induced draught system, Quench water system and pulp water
Reason system；Wherein, the feeding system gasifies for coal dust to be delivered to the gasification system, and gasify required chilled water
It is provided by the Quench water system, the synthesis gas generated after gasification is after the washing desulphurization system through by online gc point
The waste liquid that generates and waste residue are handled through the slag water treatment system after analysis, and gasification, and treated waste water and the liter
The gas cooling water of warm induced draught system is transmitted back to the chilled water system circulation together and uses.
Another aspect of the present invention provides a kind of gasification evaluation method of coal, wherein method includes the following steps:
(I) gasification furnace heating preheating: gasification furnace is lighted, the washing desulphurization system is cut off, opens the heating air inducing system
System；The heating induced draught system is cut off after the preheating that heats up, opens the washing desulphurization system；
(II) it feeds intake and gasifies: by coal dust through coal bunker (1) blanking to 1#Coal dust feed hopper (2) and/or 2#Coal dust feed hopper
(3) in or blanking is into coal dust pulping system (4), and establishes coal dust circulation or water-coal-slurry circulation, coal dust to its plenum
Or water-coal-slurry conveying capacity is measured by flow quantity detecting system (5), and coal dust or water-coal-slurry are delivered to the gasification furnace (7) interior gas
Change；
(III) gasification index is evaluated: the gas generated after gasification furnace (7) gasification distinguishes washed tower (10) and desulfurizing tower
(11) after, the gas component after washed tower (10) and desulfurizing tower (11) is analyzed using gas detecting system (12).
Through the above technical solutions, compared with prior art, coal seed gasification evaluating apparatus provided by the present invention and method
With technical effect beneficial below:
(1) device can both do coal in such a way that dry pulverized coal and water-coal-slurry share coal dust feed-line
Coal dust gasification evaluation can also carry out coal water slurry gasification evaluation to coal, and furthermore coal can be achieved in the configuration of two coal dust feed hoppers
The continuity test evaluation of kind.
(2) device can also be used to evaluation equipment for gasification, such as burner, gasification furnace inner lining structure, dry powder pump, coal slurry pump
Deng；The device can be used for small-sized carbon-containing fuel production synthesis gas；And the technological parameter of this method evaluation may be coal
The problem of gasification technology of the subsequent use of kind provides design basis, and evaluation procedure encounters can also be predicted in advance.
(3) the gasification furnace treating capacity in the device is small, and driving and parking is convenient, and process costs are low, while can replace at any time not
It is tested with gasification burner tip.
(4) it is recycled after setting gas cooling water circulation and wastewater treatment, so that the waste water generated in technical process is closed
Reason recycles, and pollutes small.
(5) related process such as the flow of Process configuration, temperature, pressure and gas detection detecting instrument instrument is reliably complete,
The technological parameter of acquisition provides beneficial reference for the subsequent gasification technology selection of coal.
Detailed description of the invention
Fig. 1 is the gasification evaluating apparatus schematic diagram of coal of the invention.
Description of symbols
1, coal bunker 2,1#Coal dust feed hopper 3,2#Coal dust feed hopper
4, coal dust pulping system 5, flow monitoring system 6, gasification burner tip (or heating burner)
7, gasification furnace 8, Quench water pot 9,1#Quench water pump
10, scrubbing tower 11, desulfurizing tower 12, gas detecting system
13, gas colling tower 14, air-introduced machine 15, chimney
16、 2#Quench water pump 17, fine slag water pot 18, thick pulp water tank
19, pulp water processing unit 20,3#Quench water pump 111,1#Baiting valve
112、 2#Baiting valve 113,3#Baiting valve 21,1#Feed valve
31、 2#Feed valve 41, slurry-supplying valve 42, coal slurry pump
51, feeding valve 52, coal dust circulation shut-off valve 53, coal slurry recycle shut-off valve
71, upper thermocouple 72, middle part thermocouple 73, lower part thermocouple
231, coal dust conveying shut-off valve 101, syngas outlet valve 131, heating gas outlet valve
181, pulp water outlet valve
Specific embodiment
Below in conjunction with attached drawing, detailed description of the preferred embodiments.It should be understood that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
The present invention provides a kind of coal seed gasification evaluating apparatus, wherein the coal seed gasification evaluating apparatus include feeding system,
Gasification system, washing desulphurization system, heating induced draught system, Quench water system and slag water treatment system；Wherein, the feeding system
Gasify for coal dust to be delivered to the gasification system, the required chilled water that gasifies is provided by the Quench water system, gas
The synthesis gas generated after change after the washing desulphurization system through being analyzed by online gc, and the waste liquid that is generated after gasification and
Waste residue is handled through the slag water treatment system, and treated waste water and the heating induced draught system gas cooling water together
The chilled water system circulation is transmitted back to use.
According to the present invention, the feeding system includes coal bunker 1,1#Coal dust feed hopper 2,2#Coal dust feed hopper 3, coal dust slurrying
System 4 and flow quantity detecting system 5；The coal bunker 1 is respectively with 1#Coal dust feed hopper 2,2#Coal dust feed hopper 3 and coal dust pulping system 4
Import be connected；Described 1#Coal dust feed hopper 2,2#The outlet of coal dust feed hopper 3 and coal dust pulping system 4 accumulates a conveying
Pipeline, and flow quantity detecting system 5 is provided on the feed-line, and a feed-line of the outlet of the flow quantity detecting system 5
Be connected with coal bunker 1 outlet to form a circulation loop and the flow quantity detecting system 5 another feed-line and coal dust system
Slurry system 4 is connected to form another circulation loop.
In the present invention, specifically, the coal bunker 1 can pass through 1 respectively#Baiting valve 111,2#Baiting valve 112,3#Blanking
Valve 113 and 1#Coal dust feed hopper 2,2#Coal dust feed hopper 3 is connected with the import of coal dust pulping system 4；Described 1#Coal dust feed hopper 2,
2#The outlet of coal dust feed hopper 3 and coal dust pulping system 4 is respectively arranged with 1#Feed valve 21,2#Feed valve 31 and slurry-supplying valve 41；Institute
The one end for stating slurry-supplying valve 41 is connected with coal dust pulping system 4, and the other end is connected with coal slurry pump 42；1#Feed valve 21 and 2#It gives
The other end of material valve 31 accumulates a feed-line, and coal dust conveying shut-off valve 231 is provided on the feed-line；The coal dust
The other end of conveying shut-off valve 231 and coal slurry pump 42, which accumulates, is provided with stream on another feed-line and the feed-line
Amount detection systems 5, and coal dust circulation shut-off valve 52 and coal slurry circulation are provided on the outlet conduit line of the flow quantity detecting system 5
Shut-off valve 53, coal dust circulation shut-off valve 52 are connected to form a circulation loop with coal bunker 1, which recycles shut-off valve 53 and coal
Powder pulping system 4 is connected to form another circulation loop.
According to the present invention, the gasification system includes gasification burner tip 6 and gasification furnace 7；And the gasification burner tip 6 is examined with flow
Examining system 5 is connected, which is arranged in the entrance at the top of gasification furnace 7；In the present invention, the feeding system
In flow quantity detecting system 5 can be connected by feeding valve 51 with gasification burner tip 6.
According to the present invention, the flow quantity detecting system 5 may include coal power flowmeter and/or water-coal-slurry flowmeter；When this
Device and method are for when evaluating coal dust, which to select coal power flowmeter therein to be measured；When the device
With method for when evaluating coal slurry, which to select water-coal-slurry flowmeter therein to be measured.
According to the present invention, the gasification burner tip 6 may include dry pulverized coal burner and/or Water-coal-slurry nozzle；When the device and
Method is for when evaluating coal dust, which to select dry pulverized coal burner therein；When the device and method are for evaluating coal dust
When, which selects Water-coal-slurry nozzle therein.
In the case of, according to the invention it is preferred to, the gasification burner tip 6 is single spraying mouth structure or multiinjector structure, in the present invention
In, the multiinjector structure refers to that nozzle number is greater than 2 nozzle arrangements, and under preferable case, nozzle number is 2-24, more
Under preferable case, nozzle number is 2-10, under most preferred case, and nozzle number is 3-6.
According to the present invention, in 7 temperature rise period of gasification furnace, the liquid level of shock chamber be in down-comer export it is below, mainly
It is to take away hot gas for the ease of downstream air-introduced machine, avoids building the pressure gasification furnace, causes temperature that can not rise；In feeding stage,
Liquid level is more than down-comer outlet, primarily to the gas of generation is entered cooling, ash disposal in chilled water.
According to the present invention, thermocouple can be set on the vaporizer of the gasification furnace 7；Preferably, the gasification furnace 7
4-6 thermocouple is provided on vaporizer；It is highly preferred that being provided with the top of balanced configuration on the vaporizer of the gasification furnace 7
The lower part thermocouple 73 of thermocouple 71, the middle part thermocouple 72 of balanced configuration and balanced configuration.
According to the present invention, the gasification chamber liner in the gasification furnace 7 can be refractory brick and/or water-cooling wall.
According to the present invention, the washing desulphurization system includes scrubbing tower 10, desulfurizing tower 11 and gas detecting system 12；And it should
Scrubbing tower 10 is connected with gasification furnace 7, and the top exit of scrubbing tower 10 is provided with desulfurizing tower 11, and an outlet of desulfurizing tower 11 is set
It is equipped with gas detecting system 12；In the present invention, the gasification furnace 7 in the gasification system can pass through syngas outlet valve 101
It is connected with scrubbing tower 10, which can be connected for that chromatography can be carried out online with chromatograph.
According to the present invention, the heating induced draught system includes gas colling tower 13, air-introduced machine 14, chimney 15 and 2#Chilled water
Pump 16；Wherein, the entrance of the gas colling tower 13 be connected with gasification furnace 7 and gas colling tower 13 one outlet and draw
One end of blower 14 is connected, and the other end of air-introduced machine 14 is connected with chimney 15, another outlet of gas colling tower 13 with
2#Quench water pump 16 is connected and 2#Quench water pump 16 is used to the cooling water of gas colling tower 13 being delivered to the chilled water
It is recycled in system；In the present invention, the gasification furnace 7 in the gasification system can pass through heating gas outlet valve 131 and gas
Body cooling tower 13 is connected.
According to the present invention, the Quench water system includes Quench water pot 8 and 1#Quench water pump 9, and the entrance of Quench water pot 8
With 2#Quench water pump 16 is connected, an outlet and 1 for the Quench water pot 8#One end of Quench water pump 9 be connected and this 1#Quench
The other end of water pump 9 is connected with the gasification furnace 7 in the gasification system.
According to the present invention, the slag water treatment system includes fine slag water pot 17, thick pulp water tank 18 and pulp water processing unit 19；
The entrance of the thick pulp water tank 18 is connected with the outlet at bottom of gasification furnace 7, the entrance and scrubbing tower 10 of the fine slag water pot 17
Outlet at bottom be connected；And the pulp water in fine slag water pot 17 and thick pulp water tank 18 is drained into pulp water processing unit 19, and
Treated that water is delivered to that the circulation of Quench water pot 8 makes by the pulp water in fine slag water pot 17 and thick pulp water tank 18 for pulp water processing unit 19
With；In the present invention, the outlet at bottom of the gasification furnace 7 in the gasification system can pass through pulp water outlet valve 181 and thick pulp water
The entrance of tank 18 is connected, and treated that water can by the pulp water in fine slag water pot 17 and thick pulp water tank 18 for pulp water processing unit 19
To pass through 3#Quench water pump 20 is delivered to the recycling of the Quench water pot 8 in the Quench water system.
Another aspect of the present invention additionally provides a kind of coal seed gasification evaluation method, wherein this method may include following step
It is rapid:
(I) gasification furnace heating preheating: gasification furnace is lighted, the washing desulphurization system is cut off, opens the heating air inducing system
System；The heating induced draught system is cut off after the preheating that heats up, opens the washing desulphurization system；
(II) it feeds intake and gasifies: by coal dust through 1 blanking of coal bunker to 1#Coal dust feed hopper 2 and/or 2#In coal dust feed hopper 3,
Or blanking establishes coal dust circulation or water-coal-slurry circulation, coal dust or water-coal-slurry into coal dust pulping system 4, and to its plenum
Conveying capacity is measured by flow quantity detecting system 5, and coal dust or water-coal-slurry are delivered in the gasification furnace 7 and gasified；
(III) gasification index is evaluated: after the gas that gasification furnace 7 generates after gasifying distinguishes washed tower 10 and desulfurizing tower 11,
The gas component after washed tower 10 and desulfurizing tower 11 is analyzed using gas detecting system 12.
According to the method for the present invention, in step (I), heating burner is lighted, the position of the heating burner is of the invention
It is not marked in the gasification evaluating apparatus schematic diagram of coal shown in FIG. 1, position can be with the position phase of gasification burner tip 6
Together, that is, in step (I) gasification furnace heating warm-up phase, heating burner is installed, after gasification furnace heating preheating, that is, In
After step (II) feeds intake, it will heat up burner and be changed to gasification burner tip 6.
According to the method for the present invention, wherein this method further include: the fine slag in scrubbing tower 10 enters carefully together with washing water
Enter pulp water processing unit 19 after pulp water tank 17；The thick slag generated in gasification furnace 7 enters at pulp water after being emitted into thick pulp water tank 18
Manage device 19；Treated, and water is delivered to the recycling of Quench water pot 8.
According to the method for the present invention, in step (I), the heating preheating temperature of gasification furnace can be 700-1100 DEG C, excellent
It is selected as 750-1000 DEG C, more preferably 800-900 DEG C.
According to the method for the present invention, in step (II), the condition to gasify in the gasification furnace 7 includes: that temperature is no more than
2000 DEG C, pressure is no more than 10.0MPa, and treating capacity is no more than 100 ton/days；Preferably, the temperature to gasify in the gasification furnace 7
It is 1200-1500 DEG C, when for coal gasification, pressure 0-4.0MPa, when for coal water slurry gasification, under normal circumstances, pressure is omited
Height is 0-8.6MPa for coal water slurry gasification pressure under preferable case；Treating capacity is 1-10 ton/days.
In the present invention, the pressure in gasification furnace downstream is with gasification experiment pressure, that is, with the variation of gasification furnace pressure
Variation, pressure drop is little between the equipment usually from gasification furnace and downstream；For example, gasification furnace pressure is 4.0MPa, gas
Pressure after change can be 3.95MPa, 3.97MPa or 3.98MPa.
According to the method for the present invention, the gasification furnace 7 gasify gasifying agent used can be in air, oxygen and vapor
It is one or more；Preferably, the gasifying agent is oxygen and/or vapor；And in the present invention, the gasifying agent pressure
It is to change with the variation of gasification experiment pressure, it is usually higher than gasification furnace pressure gasifying agent to be conveyed, it is excellent
In the case of choosing, the pressure of the gasifying agent can be 0.5-4.5MPa, and temperature can be 150-250 DEG C.
According to the method for the present invention, conveying gas used in pulverized coal conveying can be nitrogen, carbon dioxide, hydrogen and indifferent gas
One of body is a variety of；Preferably, conveying gas used in pulverized coal conveying is nitrogen and/or carbon dioxide；And in the present invention
In, the coal dust discharge pressure is changed with the variation of gasification experiment pressure, ability usually higher than gasification furnace pressure
Coal dust conveying is entered, under preferable case, the pressure that gas is conveyed used in pulverized coal conveying is 0.5-4.5MPa, temperature 25-120
℃。
According to the method for the present invention, the gasifying agent and the coal dust or the mass ratio of water-coal-slurry can be (0.4-1): 1,
Preferably (0.6-0.8): 1；That is, in the present invention, the mass ratio of the gasifying agent and the coal dust can be (0.4-
1): 1, preferably (0.6-0.8): 1；And the gasifying agent and the mass ratio of the water-coal-slurry can be (0.4-1): 1, preferably
For (0.6-0.8): 1.
According to the method for the present invention, in step (III), the condition for the gas that the gasification furnace 7 generates after gasifying includes:
Pressure can be 0-3.95MPa, and temperature can be 200-300 DEG C；Under preferable case, pressure 0-3.95MPa, temperature 220-
260℃。
According to the method for the present invention, in step (III), after the washed tower 10 of gas that gasification furnace 7 generates after gasifying
The condition of gas includes: that pressure can be 0-3.95MPa, and temperature can be 100-200 DEG C；Under preferable case, pressure 0.5-
3.9MPa, temperature are 100-150 DEG C.
According to the method for the present invention, in step (III), the gas that gasification furnace 7 generates after gasifying is after desulfurizing tower 11
The condition of gas includes: that pressure can be 0-3.95MPa, and temperature can be 80-200 DEG C；Under preferable case, pressure 0.5-
3.9MPa, temperature are 80-100 DEG C.
In the present invention, the pressure of the gas generated after gasification mainly determines by coal evaluation experimental pressure, general feelings
Under condition, pressure very little, for example, 0.05MPa or smaller.
According to a preferred embodiment of the present invention, the coal gasification evaluation method the following steps are included:
(I) gasification furnace heating warm-up phase: gasification nozzle 6 is changed to heating burner, lights heating burner, closes synthesis
Gas outlet valve 101 opens heating gas outlet valve 131；It is then turned on air-introduced machine 14,2#Quench water pump 16 and 1#The formation of Quench water pump 9
One circulation loop；
(II) feeding stage: by coal dust through 1 blanking of coal bunker to 1#Coal dust feed hopper 2 and/or 2#In coal dust feed hopper 3, or
Blanking into coal dust pulping system 4, and to its plenum after, open 1#Baiting valve 21 and/or 2#Baiting valve 31, or open
Slurry-supplying valve 41 and coal slurry pump 42, at the same open coal dust circulation shut-off valve 52 coal slurry circulation shut-off valve 53 establish coal dust circulation or coal
Slurry circulation, coal dust or coal slurry conveying capacity are measured by flow quantity detecting system 5；It will heat up burner and be changed to gasification burner tip 6, and close
Coal dust recycles shut-off valve 52 or coal slurry circulation shut-off valve 53 and heating gas outlet valve 131, opens simultaneously feeding valve 51 and synthesis
Gas outlet valve 101 starts the charging in gasification furnace 7, and puts into corresponding gasifying agent；
(III) the coal seed gasification metrics evaluation stage: the gas that gasification furnace 7 generates after gasifying distinguishes washed tower 10 and desulfurization
After tower 11, the gas component after washed tower 10 and desulfurizing tower 11 is analyzed using gas detecting system 12, residual gas
It is lighted through torch；
(IV) fine slag in scrubbing tower 10 enters pulp water processing unit 19 after entering fine slag water pot 17 together with washing water；Gas
Change the thick slag generated in furnace 7 and enters pulp water processing unit 19 after pulp water outlet valve 181 is emitted into thick pulp water tank 18；Treated
Water is through 3#Quench water pump 20 is delivered to the recycling of Quench water pot 8, and the slag after pulp water processing unit 19 is sampled analysis.
After the coal seed gasification evaluation method of the invention reaches certain temperature for the in-furnace temperature that will gasify, gasification furnace is cut off
Heat up induced draught system, and coal is delivered in gasification furnace by feeding system and is gasified, and by flow quantity detecting system metered flow；Gasification institute
It is provided with chilled water by Quench water system, through by online gc point after the washed desulphurization system of the synthesis gas generated after gasification
Analysis；The waste liquid and waste residue generated after gasification is handled through slag water treatment system, and treated, and waste residue sampling analysis detects phosphorus content, place
The gas cooling water of waste water and heating induced draught system after reason sends the use of chilled water system circulation back to together.The present invention be with it is low at
This mode realizes the evaluation to coal seed gasification index, reduces because of the huge engineering risk of gasification technology select permeability bring.
Embodiment 1
The present embodiment, which is indicated that, evaluates coal using coal evaluating apparatus and method of the invention.
Using coal evaluating apparatus of the invention and method, specifically, as shown in Figure 1:
(1) gasification furnace heating warm-up phase: the gasification burner tip 6 in Fig. 1 is changed to heating burner, firstly, lighting heating
Burner closes syngas outlet valve 101, opens heating gas outlet valve 131；It is then turned on air-introduced machine 14,2#Quench water pump 16 and 1#
Quench water pump 9 forms a circulation loop；
Wherein, the gasification chamber liner of the gasification furnace 7 is refractory brick；
(2) feeding stage: by coal dust (dry pulverized coal) through 1 blanking of coal bunker to 1#Coal dust feed hopper 2 and 2#In coal dust feed hopper 3,
And to its plenum after, open 1#Baiting valve 21 and 2#Baiting valve 31, while opening coal dust circulation shut-off valve (52) and establishing coal dust
Circulation, coal dust conveying capacity are measured by flow quantity detecting system 5；When the preheating temperature that heats up is up to 900 DEG C, burner change will heat up
For gasification burner tip 6；And coal dust circulation shut-off valve 52 and heating gas outlet valve 131 are closed, open simultaneously feeding valve 51 and synthesis
Gas outlet valve 101 starts the charging in gasification furnace 7, and puts into corresponding gasifying agent；
Wherein, using the coal power flowmeter in the flow quantity detecting system 5；
Wherein, the liquid level of the shock chamber of the gasification furnace 7 is more than down-comer outlet；
Wherein, coal dust is conveyed by nitrogen, and the pressure of coal dust is 4.5MPa, and temperature is 80 DEG C；
Wherein, gasifying agent is pure oxygen, and the pressure of gasifying agent is 4.5MPa, and temperature is 180 DEG C；
Wherein, the temperature of gasification furnace 7 is 1300 DEG C, pressure 0.5MPa, and treating capacity is 3 ton/days, the reaction chamber of gasification furnace
Internal diameter is 300mm, and gasification furnace height is 1000mm, and gasification burner tip is single spraying mouth structure；Wherein, using in the gasification burner tip 6
Dried coal powder burner；Wherein, upper thermocouple 71, the balanced configuration of balanced configuration are provided on the vaporizer of the gasification furnace 7
Middle part thermocouple 72 and balanced configuration lower part thermocouple 73；
Wherein, the ratio of the mass ratio of gasifying agent (oxygen) and coal dust is 0.80；
(3) the coal seed gasification metrics evaluation stage: the gas that gasification furnace 7 generates after gasifying distinguishes washed tower 10 and desulfurizing tower
After 11, the gas component after washed tower 10 and desulfurizing tower 11 is analyzed using gas detecting system 12；In scrubbing tower 10
Fine slag enter together with washing water and enter pulp water processing unit 19 after fine slag water pot 17；The thick slag generated in gasification furnace 7 is through slag
Water out valve 181 enters pulp water processing unit 19 after being emitted into thick pulp water tank 18；Treated water is through 3#Quench water pump 20 conveys
It is recycled to Quench water pot 8, the slag after pulp water processing unit 19 is sampled analysis.
Wherein, the pressure for the gas that the gasification furnace 7 generates after gasifying is 3.95MPa, and temperature is 280 DEG C；7 gas of gasification furnace
The pressure of gas after the washed tower 10 of the gas generated after change is 3.92MPa, and temperature is 150 DEG C；Gasification furnace 7 generates after gasifying
The pressure of gas of the gas after desulfurizing tower 11 be 3.9MPa, temperature is 100 DEG C；
Wherein, the coal analysis for the raw coal that gasification reaction uses is as shown in table 1；The melting characteristic of lime-ash is as shown in table 2, with
And online gc analysis gasification gas mainly forms (butt) as shown in table 3.
Table 1
Table 2 (unit, DEG C)
| Deformation temperature DT | Softening temperature ST | Hemispherical fusion temperature HT | Flowing temperature FT |
| 1142℃ | 1162℃ | 1177℃ | 1189℃ |
Table 3 (unit, mol%)
| CO | H2 | CO2 | CH4 | N2 |
| 58.72 | 26.53 | 3.40 | 2.62 | 9.73 |
Also, the slag after pulp water processing unit 19 is sampled analysis；
Wherein, efficiency of carbon con version: 98.06%；
Cold gas efficiency: 78%；
CO+H2Content: 85.25%；
It is consumed than oxygen: 348Nm3/1000Nm3(CO+H2)；
Than coal consumption: 582kg/1000Nm3(CO+H2)；
To sum up, show that the device and method are suitable for coal gasification.
Embodiment 2
The present embodiment, which is indicated that, evaluates coal using coal evaluating apparatus and method of the invention.
Coal is evaluated according to device and method same as Example 1, institute the difference is that: gasification burner tip is
Three nozzle arrangements.
Wherein, it is as shown in table 4 mainly to form (butt) for online gc analysis gasification gas.
Table 4 (unit, mol%)
| CO | H2 | CO2 | CH4 | N2 |
| 60.22 | 30.13 | 1.46 | 1.78 | 6.41 |
Also, the slag after pulp water processing unit 19 is sampled analysis；
Wherein, efficiency of carbon con version: 99.13%；
Cold gas efficiency: 83%；
CO+H2Content: 90.35%；
It is consumed than oxygen: 308Nm3/1000Nm3(CO+H2)；
Than coal consumption: 532kg/1000Nm3(CO+H2)；
To sum up, show that the device and method are suitable for coal gasification.
Embodiment 3
The present embodiment, which is indicated that, evaluates coal using coal evaluating apparatus and method of the invention.
Coal is evaluated according to device and method same as Example 1, institute the difference is that: by coal dust through coal
1 blanking of storehouse into coal dust pulping system 4, and to its plenum after, open slurry-supplying valve 41 and coal slurry pump 42, while opening coal slurry
Circulation shut-off valve 53 establishes coal slurry circulation, and coal slurry conveying capacity is measured by flow quantity detecting system 5；It will heat up burner to be changed to gasify
Burner 6, and close coal slurry circulation shut-off valve 53 and heating gas outlet valve (131)；
Wherein, by coal dust (dry pulverized coal) through 1 blanking of coal bunker to 1#Coal dust feed hopper 2；
Wherein, using the Water-coal-slurry nozzle in the gasification burner tip 6；
Wherein, using the water-coal-slurry flowmeter in the flow quantity detecting system 5；
Wherein, it is as shown in table 5 mainly to form (butt) for online gc analysis gasification gas.
Table 5 (unit, mol%)
| CO | H2 | CO2 | CH4 | N2 |
| 47.33 | 38.46 | 12.76 | 0.33 | 1.12 |
Also, the slag after pulp water processing unit 19 is sampled analysis；
Wherein, efficiency of carbon con version: 98.91%；
Cold gas efficiency: 74%；
CO+H2Content: 85.79%；
It is consumed than oxygen: 361Nm3/1000Nm3(CO+H2)；
Than coal consumption: 548kg/1000Nm3(CO+H2)；
To sum up, show that the device and method are suitable for coal slurry gasification.
Embodiment 4
The present embodiment, which is indicated that, evaluates coal using coal evaluating apparatus and method of the invention.
Coal is evaluated according to device and method same as Example 1, institute the difference is that, primary operational item
Part are as follows:
Gasification temperature: 1500 DEG C
Vapor pressure: 4.0MPa
Oxygen/coal dust (mass ratio): 0.60
Coal dust pumped (conveying) medium: N2
Wherein, it is as shown in table 6 mainly to form (butt) for online gc analysis gasification gas:
Table 6 (unit, mol%)
| CO | H2 | CO2 | CH4 | N2 |
| 58.67 | 26.97 | 4.07 | 0.48 | 9.81 |
Also, the slag after pulp water processing unit 19 is sampled analysis；
Wherein, efficiency of carbon con version: 98.63%；
Cold gas efficiency: 80%；
CO+H2Content: 85.64%；
It is consumed than oxygen: 323Nm3/1000Nm3(CO+H2)；
Than coal consumption: 551kg/1000Nm3(CO+H2)；
To sum up, show that the device and method are suitable for coal gasification.
Embodiment 5
The present embodiment, which is indicated that, evaluates coal using coal evaluating apparatus and method of the invention.
Coal is evaluated according to device and method same as Example 1, institute the difference is that, primary operational item
Part are as follows:
Gasification temperature: 1600 DEG C
Vapor pressure: 6.0MPa
Oxygen/coal dust (mass ratio): 0.70
Coal dust pumped (conveying) medium: N2
Wherein, it is as shown in table 7 mainly to form (butt) for online gc analysis gasification gas:
Table 7 (unit, mol%)
| CO | H2 | CO2 | CH4 | N2 |
| 47.76 | 34.40 | 6.03 | 3.56 | 8.25 |
Also, the slag after pulp water processing unit 19 is sampled analysis；
Wherein, efficiency of carbon con version: 98.13%；
Cold gas efficiency: 76%；
CO+H2Content: 82.16%；
It is consumed than oxygen: 353Nm3/1000Nm3(CO+H2)；
Than coal consumption: 516kg/1000Nm3(CO+H2)；
To sum up, show that the device and method are suitable for coal gasification.
From the result of above-described embodiment it can be seen that the coal seed gasification evaluation method of the invention is will be warm in gasification furnace
After degree reaches certain temperature, coal is delivered in gasification furnace by feeding system and is gasified by cutting gasification furnace heating induced draught system, and by
Flow quantity detecting system metered flow；The chilled water used that gasifies is provided by Quench water system, and the synthesis gas generated after gasification is washed
It is analyzed after desulphurization system by online gc；The waste liquid and waste residue generated after gasification is handled through slag water treatment system, after processing
Waste residue sampling analysis detect phosphorus content, the gas cooling water of treated waste water and heating induced draught system sends chilled water back to together
System circulation uses.The present invention can preferably be evaluated the gasification of coal and the present invention and can be realized in a manner of low cost
Evaluation to coal seed gasification index is reduced because of the huge engineering risk of gasification technology select permeability bring.
It is described the prefered embodiments of the present invention in detail above in conjunction with attached drawing, still, the present invention is not limited thereto.At this
, can be with various simple variants of the technical solution of the present invention are made in the range of the technology design of invention, including each particular technique
Feature is combined in any suitable manner.In order to avoid unnecessary repetition, the present invention is to various combinations of possible ways
No further explanation will be given.But it should also be regarded as the disclosure of the present invention for these simple variants and combination, belongs to the present invention
Protection scope.
Claims (11)
1. a kind of coal seed gasification evaluating apparatus, which is characterized in that the device includes feeding system, gasification system, washing desulphurization system
System, heating induced draught system, Quench water system and slag water treatment system；Wherein, the feeding system is used to coal dust being delivered to institute
It states gasification system to gasify, the required chilled water that gasifies is provided by the Quench water system, the synthesis gas warp generated after gasification
It is analyzed after the washing desulphurization system by online gc, and the waste liquid and waste residue that generate after gasification are handled through the pulp water
System processing, and the gas cooling water of treated waste water and the heating induced draught system are transmitted back to the Quench water system together
System is recycled.
2. the apparatus according to claim 1, wherein the feeding system includes coal bunker (1), 1#Coal dust feed hopper (2), 2#
Coal dust feed hopper (3), coal dust pulping system (4) and flow quantity detecting system (5)；Wherein, the coal bunker (1) is respectively with 1#Coal dust is given
Feed bin (2), 2#Coal dust feed hopper (3) is connected with the import of coal dust pulping system (4)；Described 1#Coal dust feed hopper (2), 2#Coal dust
The outlet of feed hopper (3) and coal dust pulping system (4) accumulates a feed-line, and flow inspection is provided on the feed-line
Examining system (5), and a feed-line of the outlet of the flow quantity detecting system (5) is connected to form one and be recycled back to coal bunker (1)
Another feed-line of the outlet of road and the flow quantity detecting system (5) be connected with coal dust pulping system (4) to be formed it is another
Circulation loop.
3. device according to claim 1 or 2, wherein the gasification system includes gasification burner tip (6) and gasification furnace (7),
And the gasification burner tip (6) is connected with flow quantity detecting system (5), which is arranged at the top of gasification furnace (7)
Entrance；
Preferably, the flow quantity detecting system (5) includes coal power flowmeter and/or water-coal-slurry flowmeter；
Preferably, the gasification burner tip (6) includes dry pulverized coal burner and/or Water-coal-slurry nozzle；
Preferably, the gasification burner tip (6) is single spraying mouth structure or multiinjector structure；
Preferably, the gasification chamber liner in the gasification furnace (7) is refractory brick and/or water-cooling wall.
4. device according to claim 1 or 3, wherein the washing desulphurization system includes scrubbing tower (10), desulfurizing tower
(11) and gas detecting system (12)；And the scrubbing tower (10) is connected with gasification furnace (7), the top exit of scrubbing tower (10) is set
It is equipped with desulfurizing tower (11), and an outlet of desulfurizing tower (11) is provided with gas detecting system (12).
5. device according to claim 1 or 3, wherein the heating induced draught system includes gas colling tower (13), air inducing
Machine (14), chimney (15) and 2#Quench water pump (16)；Wherein, the entrance of the gas colling tower (13) is connected with gasification furnace (7)
Connect and gas colling tower (13) one outlet be connected with one end of air-introduced machine (14), and the other end of air-introduced machine (14) and
Chimney (15) is connected, another outlet and 2 of gas colling tower (13)#Quench water pump (16) is connected and 2#Quench water pump
(16) it is recycled for the cooling water of gas colling tower (13) to be delivered in the Quench water system.
6. device according to claim 1 or 5, wherein the Quench water system includes Quench water pot (8) and 1#Chilled water
It pumps (9), and the entrance and 2 of Quench water pot (8)#Quench water pump (16) is connected, an outlet and 1 for Quench water pot (8)#Chilled water
Pump (9) one end be connected and this 1#The other end of Quench water pump (9) is connected with gasification furnace (7).
7. device according to claim 1 or 6, wherein the slag water treatment system includes fine slag water pot (17), thick pulp water
Tank (18) and pulp water processing unit (19)；The entrance of the thick pulp water tank (18) is connected with the outlet at bottom of gasification furnace (7), institute
The entrance for stating fine slag water pot (17) is connected with the outlet at bottom of scrubbing tower (10)；And fine slag water pot (17) and thick pulp water tank
(18) pulp water in is drained into pulp water processing unit (19), and pulp water processing unit (19) is by fine slag water pot (17) and thick pulp water
Treated that water is delivered to Quench water pot (8) recycling for pulp water in tank (18).
8. the gasification evaluation method of coal described in any one of claim 1-7, which is characterized in that this method includes following
Step:
(I) gasification furnace heating preheating: gasification furnace is lighted, the washing desulphurization system is cut off, opens the heating induced draught system；When
The heating induced draught system is cut off after heating preheating, opens the washing desulphurization system；
(II) it feeds intake and gasifies: by coal dust through coal bunker (1) blanking to 1#Coal dust feed hopper (2) and/or 2#Coal dust feed hopper (3)
In or blanking into coal dust pulping system (4), and to its plenum establish coal dust circulation or water-coal-slurry recycle, coal dust or
Water-coal-slurry conveying capacity is measured by flow quantity detecting system (5), and coal dust or water-coal-slurry are delivered to gasification in the gasification furnace (7)；
(III) gasification index is evaluated: the gas generated after gasification furnace (7) gasification distinguishes washed tower (10) and desulfurizing tower (11)
Afterwards, the gas component after washed tower (10) and desulfurizing tower (11) is analyzed using gas detecting system (12).
9. according to the method described in claim 8, wherein, this method further include: the fine slag in scrubbing tower (10) is with washing water one
And enters fine slag water pot (17) and enter pulp water processing unit (19) afterwards；The thick slag generated in gasification furnace (7) is emitted into thick pulp water tank
(18) enter pulp water processing unit (19) afterwards；Treated, and water is delivered to Quench water pot (8) recycling.
10. method according to claim 8 or claim 9, wherein in step (I), gasification furnace heats up preheating temperature as 700-
1100℃；Preferably 750-1000 DEG C；
Preferably, in step (II), the condition of the gasification includes: that temperature is no more than 2000 DEG C, and pressure is no more than
10.0MPa, treating capacity are no more than 100 ton/days；Preferably, temperature is 1200-1500 DEG C, 1-10 ton/days for the treatment of capacity.
11. method according to claim 8 or claim 9, wherein gasification furnace (7) gasification gasifying agent and the coal used
The mass ratio of the dosage of powder or the water-coal-slurry is (0.4-1): 1, preferably (0.6-0.8): 1.
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Application publication date: 20191112 |