CN109988591A - A kind of preparation of paraffin gas, desulfurization detar device and method - Google Patents
A kind of preparation of paraffin gas, desulfurization detar device and method Download PDFInfo
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- CN109988591A CN109988591A CN201910314398.9A CN201910314398A CN109988591A CN 109988591 A CN109988591 A CN 109988591A CN 201910314398 A CN201910314398 A CN 201910314398A CN 109988591 A CN109988591 A CN 109988591A
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- gas
- reformer body
- coal
- ash
- paraffin
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- 239000012188 paraffin wax Substances 0.000 title claims abstract description 71
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 21
- 230000023556 desulfurization Effects 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000007789 gas Substances 0.000 claims abstract description 130
- 239000003245 coal Substances 0.000 claims abstract description 98
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 33
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000000779 smoke Substances 0.000 claims abstract description 20
- 238000007599 discharging Methods 0.000 claims abstract description 17
- 238000006243 chemical reaction Methods 0.000 claims abstract description 13
- 239000000428 dust Substances 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims abstract description 12
- 239000003546 flue gas Substances 0.000 claims abstract description 9
- 239000002956 ash Substances 0.000 claims description 56
- 239000003818 cinder Substances 0.000 claims description 40
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 30
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 29
- 229910052760 oxygen Inorganic materials 0.000 claims description 29
- 239000001301 oxygen Substances 0.000 claims description 29
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 229910052739 hydrogen Inorganic materials 0.000 claims description 22
- 239000001257 hydrogen Substances 0.000 claims description 22
- 229910001868 water Inorganic materials 0.000 claims description 19
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 15
- 239000001569 carbon dioxide Substances 0.000 claims description 15
- 230000009467 reduction Effects 0.000 claims description 13
- 150000002431 hydrogen Chemical class 0.000 claims description 12
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 10
- 238000000197 pyrolysis Methods 0.000 claims description 9
- 150000001335 aliphatic alkanes Chemical class 0.000 claims description 7
- 238000000746 purification Methods 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 6
- 238000002485 combustion reaction Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 5
- 230000007246 mechanism Effects 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000011449 brick Substances 0.000 claims description 4
- 239000010883 coal ash Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 125000004122 cyclic group Chemical group 0.000 claims description 3
- 239000010419 fine particle Substances 0.000 claims description 3
- 238000001556 precipitation Methods 0.000 claims description 3
- 239000010865 sewage Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 239000000284 extract Substances 0.000 claims description 2
- JISVROCKRBFEIQ-UHFFFAOYSA-N [O].O=[C] Chemical compound [O].O=[C] JISVROCKRBFEIQ-UHFFFAOYSA-N 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000011280 coal tar Substances 0.000 abstract description 6
- 238000006722 reduction reaction Methods 0.000 description 11
- 239000000126 substance Substances 0.000 description 6
- 239000011269 tar Substances 0.000 description 6
- 238000002156 mixing Methods 0.000 description 5
- 239000003034 coal gas Substances 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 241000790917 Dioxys <bee> Species 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010980 drying distillation Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/04—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of powdered coal
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/08—Non-mechanical pretreatment of the charge, e.g. desulfurization
- C10B57/10—Drying
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/08—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors
- C10K1/10—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids
- C10K1/12—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids alkaline-reacting including the revival of the used wash liquors
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The present invention relates to a kind of preparations of paraffin gas, desulfurization detar device and method, and described device includes paraffin gas producer, water-ring vacuum pump and potass pool；Paraffin gas producer sets primary reformer body and secondary reformer body, and dryer section and retort section are set in secondary reformer body；Secondary reformer body is set to the top in primary reformer body and being located at primary reformer body, and the lower part of primary reformer body is equipped with tower-like fire grate, and top side sets paraffin gas outlet, and bottom sets ash discharging hole, and lower part sets high-temperature gas mixture entrance and residual gas entrance；Residual gas entrance connects the exhaust outlet of water-ring vacuum pump, the flue-gas outlet at the top of the air entry connection secondary reformer body of water-ring vacuum pump；The inlet and outlet of water-ring vacuum pump are separately connected potass pool.The present invention can effectively remove the atmosphere pollutions such as sulfur dioxide, dust, the coal tar for including in the coal smoke of reaction process generation, avoid subsequent delivery line clogging, and can prevent the pollution of the environment while generating pure paraffin gas.
Description
Technical field
The present invention relates to coal gas preparation technical field more particularly to a kind of paraffin gas preparation, desulfurization detar device and
Method.
Background technique
With the continuous aggravation of energy shortages and environmental situation, for response country propose " Coal Clean is efficiently sharp
With " call, developing Coal Gasification Technology is a kind of effective ways effectively realizing Coal Clean and efficiently utilizing.
Existing coal gas preparation facilities in coal gas preparation process, do not do by the processing of the atmosphere pollutions such as sulfur dioxide, tar
Only and contain a large amount of dusts, so that coal gas usually blocks pipeline during transportation, and be directly discharged to after gas-fired big
In gas, serious problem of environmental pollution is caused.
Summary of the invention
The present invention provides a kind of preparations of paraffin gas, desulfurization detar device and method, can generate pure alkane
While gas, the atmosphere pollution such as sulfur dioxide, dust, the coal tar for including in the coal smoke of reaction process generation are effectively removed
Object avoids subsequent delivery line clogging, and can prevent the pollution of the environment.
In order to achieve the above object, the present invention is implemented with the following technical solutions:
A kind of preparation of paraffin gas, desulfurization detar device, including paraffin gas producer, water-ring vacuum pump and buck
Pond；The paraffin gas producer sets primary reformer body and secondary reformer body, and dryer section and retort section are set in secondary reformer body；Secondary reformer body
In primary reformer body and it is located at the top of primary reformer body, sets feed inlet at the top of secondary reformer body, bottom is connected to primary reformer body；
The lower part of primary reformer body is equipped with tower-like fire grate, and tower-like fire grate can rotate horizontally；The top side of primary reformer body sets alkane
Gas vent, bottom set ash discharging hole, and lower part sets high-temperature gas mixture entrance and residual gas entrance；The connection of high-temperature gas mixture entrance is high
Warm oxygen and steam conveyor tube road；Residual gas entrance connects the exhaust outlet of water-ring vacuum pump, the suction of water-ring vacuum pump
Port connects the flue-gas outlet at the top of secondary reformer body；The inlet and outlet of water-ring vacuum pump are separately connected potass pool.
Level-one feeding warehouse and second level feeding warehouse, the discharging of level-one feeding warehouse bottom are set above the feed inlet of the secondary reformer body
Mouth is connect with the feeding inlet nested type at the top of second level feeding warehouse, the discharge port of second level feeding warehouse bottom and the feed inlet of secondary reformer body
Nested type connection.
The discharge port of level-one feeding warehouse bottom, the discharge outlet of second level feeding warehouse bottom set spherical valve, spherical surface respectively
Valve is driven by hydraulic cylinder by link mechanism.
The ash hole of primary reformer body bottom connects out ash cellar by star-shaped dust-discharging valve, out the ash inlet of ash cellar and ash discharge
Spherical valve is set at mouthful respectively, spherical valve is driven by hydraulic cylinder by link mechanism.
The outer wall and secondary reformer body of the primary reformer body are made of wall thickness of the steel pipe of 8~15mm, primary reformer body it is interior
Wall is made of refractory brick.
Feed inlet at the top of the level-one feeding warehouse is connect with device for transporting objects, and device for transporting objects is bucket lifting
Machine.
Break disk is additionally provided in the primary reformer body, break disk is circumferentially set to the periphery of tower-like furnace operator, break disk
It is fixedly connected with the inner sidewall of primary reformer body.
A kind of paraffin gas preparation based on described device, desulfurization detar method, comprising:
1) coal cinder is transported in level-one feeding warehouse by bucket elevator, the spherical surface at level-one feeding warehouse bottom discharge port
Valve is opened, and coal cinder enters in second level feeding warehouse, and then the spherical valve at level-one feeding warehouse bottom discharge port is closed；Second level feeding warehouse
Spherical valve at bottom discharge port is opened, and coal cinder enters in the secondary reformer body of paraffin gas producer；Paraffin gas is put at first
In producer is the coal cinder being burning, the coal cinder of subsequent investment continuous burning in paraffin gas producer；
2) coal cinder is deposited on tower-like fire grate after entering paraffin gas producer, and the coal cinder entered afterwards is successively accumulated slowly
Downlink；Coal cinder slowly comes downwards to primary reformer body when burning to semicoke state first in secondary reformer body by dry, two processes of destructive distillation
It is interior；In primary reformer body, coal cinder is introduced into the reduction zone of high temperature state, and the coal of semicoke state starts to generate an oxygen here
Change carbon, high-temperature water vapor is deoxidized to form hydrogen, and generates paraffin gas；Coal cinder burns away and comes downwards to high temperature oxygen deprivation state
Burning zone, here water vapour decompose generate hydrogen, coal imperfect combustion generate carbon monoxide, small part completely burned generate
Carbon dioxide；Coal cinder burn away and under be advanced into the ash bed of high-temperature oxygen-enriched state, coal cinder completely burned becomes coal here
Lime-ash；Under the rotation stirring of tower-like fire grate, coal ash is contacted with break disk to be ground into the lime-ash of fine particle shape and falls on
Paraffin gas occur furnace bottom；The spherical valve of ash discharge the top of the warehouse is opened, and lime-ash is discharged into out ash cellar by star-shaped dust-discharging valve, when out
When lime-ash in ash cellar will be full, the spherical valve of star-shaped dust-discharging valve stalling, ash discharge the top of the warehouse is closed, and the spherical valve of bottom is opened, will
Lime-ash discharge；
3) in secondary reformer body, coal cinder is dry, destructive distillation when generate a large amount of coal smokes and extracted out by water-ring vacuum pump, liquid-ring type vacuum
The buck in potass pool is pumped while being extracted, under the centrifugal force effect of water-ring vacuum pump high-speed rotation, is taken out from secondary reformer body
Coal smoke out comes into full contact in water-ring vacuum pump with buck, cleans sulfur dioxide in coal smoke, tar, dust and other are miscellaneous
Matter, the sewage after cleaning discharges into potass pool to be recycled after precipitation, and the remaining flue gas after cleaning is sent into primary reformer body bottom
Second-time burning is carried out to remove residual impurity；
4) mixed gas of high-temperature oxygen and water vapour is passed through the bottom of primary reformer body from high-temperature gas mixture entrance；High temperature is mixed
It closes gas to contact with ash bed first, oxygen therein makes a small amount of remaining coal full combustion in lime-ash simultaneously as combustion-supporting gas
Heat is provided；High-temperature mixed gas enters burning zone later, and water vapour therein and coal reaction generate hydrogen and carbon monoxide,
Oxygen and coal reaction generate carbon monoxide and carbon dioxide, burning zone formed comprising hydrogen, carbon monoxide, carbon dioxide,
The new mixed gas of water vapour and oxygen；New mixed gas enters after reduction zone, and at high operating temperatures, water therein steams
Vapour and oxygen are completely consumed and generate a large amount of hydrogen and carbon monoxide, and carbon dioxide therein and coal reaction generate an oxidation
Carbon, finally being formed in reduction zone includes a large amount of hydrogen, carbon monoxide, a small amount of carbon dioxide and minute quantity sulfur dioxide, dust
Paraffin gas, wherein minimal amount of sulfur dioxide can be readily cleaned completely by subsequent purification device, most alkane
Gas enters paraffin gas conveyance conduit by the paraffin gas outlet at the top of primary reformer body, and extremely least a portion of paraffin gas enters
It is mixed into after secondary reformer body in coal smoke and enters cyclic process next time.
Compared with prior art, the beneficial effects of the present invention are:
1) flue gas recirculation and purification device are used as using water-ring vacuum pump, the sealing water ring use in water-ring vacuum pump
Buck, coal is dried in secondary reformer body, dry distillation reactor when the big portion of harmful substances such as the coal smoke, sulfur dioxide and the tar that generate
Divide and purified by buck, residual gas returns in primary reformer body, occurs after the high-temperature heating of burning zone and reduction zone with oxygen
Series of chemical, is converted into sulfur trioxide, carbon monoxide, and remaining harmful substance is easy under the effect of subsequent purification device
It cleans out, to produce pure paraffin gas；
2) mixed gas of the high-temperature water vapor after being sufficiently mixed and combustion-supporting gas (oxygen) is passed through in primary reformer body, is given
Increase physics heat in furnace, reduces the consumption of chemical reaction heat；High-temperature mixed gas is in the high temperature with burning zone, reduction zone simultaneously
When series of chemical occurs for coal cinder, the paraffin gas of more hydrogen and carbon monoxide mixing can be generated；
3) purification device of the water-ring vacuum pump as coal smoke is used, element sulphur, coal tar and the alkali in coal smoke are enable
Water comes into full contact with and reacts, and reaches the detarred purpose of desulfurization, and remaining a small amount of tar also can carry out secondary combustion returning in furnace
All consumption is clean when burning；
4) being mixed into for element sulphur and tar in paraffin gas is reduced, and effectively removes the dust of doping, reduces dust obstruction
A possibility that pipeline, achievees the purpose that protect environment.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of a kind of paraffin gas preparation of the present invention, desulfurization detar device.
Fig. 2 is the flow chart of a kind of paraffin gas preparation of the present invention, desulfurization detar method.
In figure: 1. go out tower-like 5. elevating hopper of fire grate, 6. level-one of 2. star-shaped dust-discharging valve of ash cellar, 3. bucket elevator 4.
10. fire grate driving motor of feeding warehouse 7. second level feeding warehouse, 8. secondary reformer body, 9. primary reformer body, 11. water-ring vacuum pump
12. 13. spherical valve of potass pool, 14. flue-gas exports 15. paraffin gas and exports the remaining gas of 16. high-temperature gas mixture entrance 17.
Body entrance
Specific embodiment
Specific embodiments of the present invention will be further explained with reference to the accompanying drawing:
As shown in Figure 1, a kind of paraffin gas preparation of the present invention, desulfurization detar device, including paraffin gas occur
Furnace, water-ring vacuum pump 11 and potass pool 12；The paraffin gas producer sets primary reformer body 9 and secondary reformer body 8, secondary reformer body
Dryer section and retort section are set in 8；Secondary reformer body 8 is set to the top in primary reformer body 9 and being located at primary reformer body 9, secondary reformer body 8
Top sets feed inlet, and bottom is connected to primary reformer body 9；The lower part of primary reformer body 9 is equipped with tower-like fire grate 4, tower-like 4 energy of fire grate
It is enough to rotate horizontally；The top side of primary reformer body 9 sets paraffin gas outlet 15, and bottom sets ash discharging hole, and lower part sets high-temperature gas mixture
Entrance 16 and residual gas entrance 17；High-temperature gas mixture entrance 16 connects high-temperature oxygen and steam conveyor tube road；Residual gas
Entrance 17 connects the exhaust outlet of water-ring vacuum pump 11, the coal at 8 top of air entry connection secondary reformer body of water-ring vacuum pump 11
Exhanst gas outlet 14；The inlet and outlet of water-ring vacuum pump 11 are separately connected potass pool 12.
Level-one feeding warehouse 6 and second level feeding warehouse 7 are set above the feed inlet of the secondary reformer body 8,6 bottom of level-one feeding warehouse
Discharge port is connect with the feeding inlet nested type at 7 top of second level feeding warehouse, the discharge port and secondary reformer body 8 of 7 bottom of second level feeding warehouse
Feed inlet nested type connection.
The discharge port of 6 bottom of level-one feeding warehouse, the discharge outlet of 7 bottom of second level feeding warehouse set spherical valve 13 respectively,
Spherical valve 13 is driven by hydraulic cylinder by link mechanism.
The ash hole of 9 bottom of primary reformer body connects out ash cellar 1 by star-shaped dust-discharging valve 2, out the ash inlet of ash cellar 1 and
Spherical valve 13 is set at ash discharging hole respectively, spherical valve 13 is driven by hydraulic cylinder by link mechanism.
The outer wall and secondary reformer body 8 of the primary reformer body 9 are made of wall thickness of the steel pipe of 8~15mm, primary reformer body 9
Inner wall is made of refractory brick.
The feed inlet at 6 top of level-one feeding warehouse is connect with device for transporting objects, and device for transporting objects is bucket lifting
Machine 3.
Break disk is additionally provided in the primary reformer body 9, break disk is circumferentially set to the periphery of tower-like furnace operator 4, break
Disk is fixedly connected with the inner sidewall of primary reformer body 9.
A kind of paraffin gas preparation based on described device, desulfurization detar method, comprising:
1) coal cinder is transported in level-one feeding warehouse 6 by bucket elevator 3, at 6 bottom discharge port of level-one feeding warehouse
Spherical valve 13 is opened, and coal cinder enters in second level feeding warehouse 7, and then the spherical valve 13 at 6 bottom discharge port of level-one feeding warehouse is closed；
Spherical valve 13 at 7 bottom discharge port of second level feeding warehouse is opened, and coal cinder enters in the secondary reformer body 8 of paraffin gas producer；Most
First putting into paraffin gas producer is the coal cinder being burning, and the coal cinder of subsequent investment continuously fires in paraffin gas producer
It burns；
2) coal cinder is deposited on tower-like fire grate 4 after entering paraffin gas producer, and the coal cinder entered afterwards is successively accumulated slow
Slow downlink；Coal cinder slowly comes downwards to one section when burning to semicoke state first in secondary reformer body 8 by dry, two processes of destructive distillation
In furnace body 9；In primary reformer body 9, coal cinder is introduced into the reduction zone of high temperature state, and the coal of semicoke state starts to give birth to here
At carbon monoxide, high-temperature water vapor is deoxidized to form hydrogen, and generates paraffin gas；Coal cinder burns away and to come downwards to high temperature poor
The burning zone of oxygen condition, water vapour, which decomposes, here generates hydrogen, and coal imperfect combustion generates carbon monoxide, and small part is fired completely
It burns and generates carbon dioxide；Coal cinder burn away and under be advanced into the ash bed of high-temperature oxygen-enriched state, coal cinder completely burned here
Become coal ash；Under the rotation stirring of tower-like fire grate 4, coal ash contacts the ash for being ground into fine particle shape with break disk
Furnace bottom occurs for the paraffin gas that slag is fallen on；The spherical valve 13 at 1 top of ash cellar is opened out, is discharged into lime-ash by star-shaped dust-discharging valve 2
Ash cellar 1 out, when the lime-ash in ash cellar 1 out will be full, star-shaped dust-discharging valve 2 is stalled, and the spherical valve 13 at 1 top of ash cellar is closed out, bottom
The spherical valve 13 in portion is opened, and lime-ash is discharged；
3) in secondary reformer body 8, coal cinder is dry, destructive distillation when generate a large amount of coal smokes and extracted out by water-ring vacuum pump 11, liquid-ring type
Vacuum pump 11 extracts the buck in potass pool 12 simultaneously, under the centrifugal force effect of 11 high-speed rotation of water-ring vacuum pump, from two
The coal smoke extracted out in section furnace body 8 comes into full contact in water-ring vacuum pump 11 with buck 12, cleans sulfur dioxide, coke in coal smoke
Oil, dust and other impurities, the sewage after cleaning are discharged into potass pool 12 and are recycled after precipitation, the remaining flue gas after cleaning
It is sent into 9 bottom of primary reformer body and carries out second-time burning to remove residual impurity；
4) mixed gas of high-temperature oxygen and water vapour is passed through the bottom of primary reformer body 9 from high-temperature gas mixture entrance 16；It is high
Warm mixed gas is contacted with ash bed first, and oxygen therein fires a small amount of remaining coal in lime-ash sufficiently as combustion-supporting gas
It burns and heat is provided；High-temperature mixed gas enters burning zone later, and water vapour therein and coal reaction generate hydrogen and an oxygen
Change carbon, oxygen and coal reaction generate carbon monoxide and carbon dioxide, and being formed in burning zone includes hydrogen, carbon monoxide, dioxy
Change the new mixed gas of carbon, water vapour and oxygen；New mixed gas enters after reduction zone, at high operating temperatures, wherein
Water vapour and oxygen be completely consumed and generate a large amount of hydrogen and carbon monoxide, carbon dioxide therein and coal reaction generate
Carbon monoxide, finally reduction zone formed comprising a large amount of hydrogen, carbon monoxide, a small amount of carbon dioxide and minute quantity sulfur dioxide,
The paraffin gas of dust, wherein minimal amount of sulfur dioxide can be readily cleaned completely by subsequent purification device, most of
Paraffin gas paraffin gas conveyance conduits, extremely least a portion of alkane are entered by the paraffin gas outlet 15 at the top of primary reformer body 9
Appropriate hydrocarbon gas is mixed into coal smoke after entering secondary reformer body 8 and enters cyclic process next time.
The water-ring vacuum pump 11 is separately connected 8 top of secondary reformer body and one of potass pool 12, paraffin gas producer
9 lower part of section furnace body for the coal smoke of 8 dryer section of secondary reformer body and retort section generation to be extracted into water-ring vacuum pump 11, and makes
Coal smoke is sufficiently mixed with buck to be contacted to remove the harmful substances such as the sulfur dioxide in coal smoke, tar, purified remaining mixing
Gas is passed through in the primary reformer body 9 of paraffin gas producer and participates in burning again, water vapour and high temperature in remaining mixed gas
Coal occurs series of chemical and generates carbon monoxide and hydrogen.Alkane is equipped at the top of paraffin gas producer primary reformer body 9
Paraffin gas after desulfurization detar is delivered to subsequent purification device by the outlet and further removed wherein by gas vent 15
A small amount of dust.
9 lower part of primary reformer body is passed through the oxygen of high temperature and the mixed gas of water vapour, guarantees the temperature in primary reformer body 9 with this
Degree is constantly in the condition of high temperature, saves the usage amount of coal burning heat.High-temperature mixed gas contacts the ash bed of coal first, promotees
Make the coal completely burned in ash bed, generates a small amount of heat；Then high-temperature mixed gas continues to rise in burning zone, is burning
The big calorimetric that coal burning generates in layer provides heat for the reduction reaction to high-temperature mixed gas and reduction zone.It is restoring
In layer, high-temperature water vapor generates carbon monoxide and hydrogen under the reduction of coal, coal under anaerobic condition with gaseous mixture
Oxygen and carbon dioxide reaction in body generate CO gas, ultimately form the alkane gas of carbon monoxide and hydrogen mixing
Body.
The drying and destructive distillation of coal all occur in the secondary reformer body 8 of paraffin gas producer, and coal is in dryer section and does
It evaporates section and generates a large amount of coal smoke, include that atmosphere pollutions, the coal smokes such as sulfur dioxide, dust, coal tar pass through secondary reformer in coal smoke
The flue-gas outlet 14 at 8 top of body is drawn into water-ring vacuum pump 11, is sufficiently connect with the buck come is taken out from potass pool 12
Sulfur dioxide, dust and the coal tar in coal smoke are cleaned in touching mixing, and purified residual gas returns in primary reformer body 9, with height
Second-time burning is carried out after warm mixed gas mixing, removes remaining a small amount of coal tar.
The inner wall of the paraffin gas producer primary reformer body 9 is built into using refractory brick, and outer wall is made of steel pipe, both may be used
The needs for guaranteeing in-furnace temperature and pressure are also beneficial to extend the service life of equipment.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (8)
1. a kind of paraffin gas preparation, desulfurization detar device, which is characterized in that true including paraffin gas producer, liquid-ring type
Sky pump and potass pool；The paraffin gas producer sets primary reformer body and secondary reformer body, and dryer section and destructive distillation are set in secondary reformer body
Section；Secondary reformer body is set to the top in primary reformer body and being located at primary reformer body, sets feed inlet, bottom and one at the top of secondary reformer body
Section furnace body connection；The lower part of primary reformer body is equipped with tower-like fire grate, and tower-like fire grate can rotate horizontally；The top of primary reformer body
Side sets paraffin gas outlet, and bottom sets ash discharging hole, and lower part sets high-temperature gas mixture entrance and residual gas entrance；High-temperature gas mixture
Entrance connects high-temperature oxygen and steam conveyor tube road；Residual gas entrance connects the exhaust outlet of water-ring vacuum pump, liquid-ring type
Flue-gas outlet at the top of the air entry connection secondary reformer body of vacuum pump；The inlet and outlet of water-ring vacuum pump connect respectively
Connect potass pool.
2. a kind of paraffin gas preparation according to claim 1, desulfurization detar device, which is characterized in that described two sections
Level-one feeding warehouse and second level feeding warehouse are set above the feed inlet of furnace body, the discharge port and second level of level-one feeding warehouse bottom feed silo roof
The feeding inlet nested type in portion connects, and the discharge port of second level feeding warehouse bottom is connect with the feed inlet nested type of secondary reformer body.
3. a kind of paraffin gas preparation according to claim 2, desulfurization detar device, which is characterized in that the level-one
The discharge port of feeding warehouse bottom, the discharge outlet of second level feeding warehouse bottom set spherical valve respectively, and spherical valve passes through company by hydraulic cylinder
Linkage driving.
4. a kind of paraffin gas preparation according to claim 1, desulfurization detar device, which is characterized in that described one section
The ash hole of bottom of furnace body connects out ash cellar by star-shaped dust-discharging valve, sets spherical surface respectively at the ash inlet and ash discharging hole of ash cellar out
Valve, spherical valve are driven by hydraulic cylinder by link mechanism.
5. a kind of paraffin gas preparation according to claim 1, desulfurization detar device, which is characterized in that described one section
The outer wall and secondary reformer body of furnace body are made of wall thickness of the steel pipe of 8~15mm, the inner wall of primary reformer body by fire resisting brick masonry and
At.
6. a kind of paraffin gas preparation according to claim 2, desulfurization detar device, which is characterized in that the level-one
Feed inlet at the top of feeding warehouse is connect with device for transporting objects, and device for transporting objects is bucket elevator.
7. a kind of paraffin gas preparation according to claim 1, desulfurization detar device, which is characterized in that described one section
Break disk is additionally provided in furnace body, break disk is circumferentially set to the periphery of tower-like furnace operator, the inside of break disk and primary reformer body
Wall is fixedly connected.
8. prepared by a kind of paraffin gas based on claim 1 described device, desulfurization detar method characterized by comprising
1) coal cinder is transported in level-one feeding warehouse by bucket elevator, the spherical valve at level-one feeding warehouse bottom discharge port is beaten
It opens, coal cinder enters in second level feeding warehouse, and then the spherical valve at level-one feeding warehouse bottom discharge port is closed；Second level feeding warehouse bottom
The spherical valve of discharge outlet is opened, and coal cinder enters in the secondary reformer body of paraffin gas producer；Paraffin gas is put at first
In furnace is the coal cinder being burning, the coal cinder of subsequent investment continuous burning in paraffin gas producer；
2) coal cinder is deposited on tower-like fire grate after entering paraffin gas producer, under the coal cinder entered afterwards is successively accumulated slowly
Row；Coal cinder slowly comes downwards to primary reformer body when burning to semicoke state first in secondary reformer body by dry, two processes of destructive distillation
It is interior；In primary reformer body, coal cinder is introduced into the reduction zone of high temperature state, and the coal of semicoke state starts to generate an oxygen here
Change carbon, high-temperature water vapor is deoxidized to form hydrogen, and generates paraffin gas；Coal cinder burns away and comes downwards to high temperature oxygen deprivation state
Burning zone, here water vapour decompose generate hydrogen, coal imperfect combustion generate carbon monoxide, small part completely burned generate
Carbon dioxide；Coal cinder burn away and under be advanced into the ash bed of high-temperature oxygen-enriched state, coal cinder completely burned becomes coal here
Lime-ash；Under the rotation stirring of tower-like fire grate, coal ash is contacted with break disk to be ground into the lime-ash of fine particle shape and falls on
Paraffin gas occur furnace bottom；The spherical valve of ash discharge the top of the warehouse is opened, and lime-ash is discharged into out ash cellar by star-shaped dust-discharging valve, when out
When lime-ash in ash cellar will be full, the spherical valve of star-shaped dust-discharging valve stalling, ash discharge the top of the warehouse is closed, and the spherical valve of bottom is opened, will
Lime-ash discharge；
3) in secondary reformer body, coal cinder is dry, destructive distillation when generate a large amount of coal smokes and extracted out by water-ring vacuum pump, water-ring vacuum pump is same
When extract potass pool in buck, water-ring vacuum pump high-speed rotation centrifugal force effect under, extracted out from secondary reformer body
Coal smoke comes into full contact in water-ring vacuum pump with buck, cleans sulfur dioxide, tar, dust and other impurities in coal smoke,
Sewage after cleaning discharges into potass pool to be recycled after precipitation, and the remaining flue gas after cleaning is sent into primary reformer body bottom and is carried out
Second-time burning is to remove residual impurity；
4) mixed gas of high-temperature oxygen and water vapour is passed through the bottom of primary reformer body from high-temperature gas mixture entrance；High-temperature gas mixture
Body is contacted with ash bed first, and oxygen therein makes a small amount of remaining coal full combustion in lime-ash as combustion-supporting gas and provides
Heat；High-temperature mixed gas enters burning zone later, and water vapour therein and coal reaction generate hydrogen and carbon monoxide, oxygen
Carbon monoxide and carbon dioxide are generated with coal reaction, is formed in burning zone and is steamed comprising hydrogen, carbon monoxide, carbon dioxide, water
The new mixed gas of vapour and oxygen；New mixed gas enters after reduction zone, at high operating temperatures, water vapour therein and
Oxygen is completely consumed and generates a large amount of hydrogen and carbon monoxide, and carbon dioxide therein and coal reaction generate carbon monoxide,
Finally in the alkane that reduction zone formation includes a large amount of hydrogen, carbon monoxide, a small amount of carbon dioxide and minute quantity sulfur dioxide, dust
Gas, wherein minimal amount of sulfur dioxide can be readily cleaned completely by subsequent purification device, most paraffin gas
Enter paraffin gas conveyance conduit by the paraffin gas outlet at the top of primary reformer body, extremely least a portion of paraffin gas enters two sections
It is mixed into after furnace body in coal smoke and enters cyclic process next time.
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