CN104560211B - Gasification furnace - Google Patents
Gasification furnace Download PDFInfo
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- CN104560211B CN104560211B CN201510032686.7A CN201510032686A CN104560211B CN 104560211 B CN104560211 B CN 104560211B CN 201510032686 A CN201510032686 A CN 201510032686A CN 104560211 B CN104560211 B CN 104560211B
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- inner chamber
- oxygen carrier
- distribution plate
- air distribution
- gasification furnace
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Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
- C10J3/482—Gasifiers with stationary fluidised bed
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/54—Gasification of granular or pulverulent fuels by the Winkler technique, i.e. by fluidisation
- C10J3/56—Apparatus; Plants
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/74—Construction of shells or jackets
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/093—Coal
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0953—Gasifying agents
- C10J2300/0959—Oxygen
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0953—Gasifying agents
- C10J2300/0973—Water
- C10J2300/0976—Water as steam
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Abstract
The invention discloses a gasification furnace which is used for preparing synthesis gas by virtue of a coal chemical bond oxygen carrier. The gasification furnace comprises a shell, an air distribution plate and a heating device, wherein the heating device is positioned inside the shell, the air distribution plate is positioned in the middle of the shell, an inner cavity of the shell is divided by the air distribution plate into a first inner cavity and a second inner cavity, the first inner cavity is communicated with a coal powder and oxygen carrier inlet pipe, a synthesis gas outlet pipe, an oxygen carrier outlet pipe and an oxygen carrier return pipe, the second inner cavity is communicated with a vapor inlet pipe, and the air distribution plate is provided with an air cap which is used for enabling vapor to flow into the second inner cavity from the first inner cavity. According to the gasification in the device, fuel does not need to be contacted with oxygen, oxygen atoms are transferred to the fuel through the oxygen carrier, so that the oxygen purifying process is avoided, the cost is efficiently saved, the burning process is not needed in the reaction, and energy is efficiently saved.
Description
Technical field
The present invention relates to coal gasification field, more particularly to a kind of gasification furnace and coal gasification method.
Background technology
Coal gasification is a thermochemical process, with coal or coal tar as raw material, is steamed with oxygen (air, oxygen-enriched or pure oxygen), water
Gas or hydrogen etc. make gasifying agent, and the combustible constituent in coal or coal tar is converted into gas by chemically reacting under the high temperature conditions fires
The process of material.
Coal gasifying process is one of main path of production synthesis gas product, is changed into the coal of solid-state by gasification
Gaseous synthesis gas, while the byproduct such as byproduct steam, tar (indivedual gasification technologies), lime-ash.Coal gasification process technology is divided into：
Fixed bed gasification technology, fluidized gasification technology, entrained flow bed gasification technology three major types, various gasification technologies have its respective excellent
Shortcoming, has certain requirement to the quality of feed coal, and the advance of its technique, technology maturation degree are also variant.
The coal gasifier commonly used in industry is typically to burn coal dust and oxygen (air, oxygen-enriched or pure oxygen), generates gaseous state
Synthesis gas, generally participate in reaction oxygen purity it is higher, the synthesis gas of generation is got over and is met the requirements, in industrial production, if made
Reaction is participated in the relatively low oxygen of concentration, the concentration of carbon monoxide and hydrogen in the gaseous mixture of generation can be influenceed, in order to improve conjunction
The concentration of carbon monoxide and hydrogen is, it is necessary to air is separated into gas, extracts concentration oxygen higher and participates in reaction, but oxygen
The pure process cost of air lift is high, and during synthesis gas preparation, the process of burning can consume the more energy.
Therefore, the cost of synthesis gas preparation how is effectively reduced, is the skill that those skilled in the art need to solve at present
Art problem.
The content of the invention
It is an object of the invention to provide a kind of gasification furnace, the device effectively reduces the cost of synthesis gas preparation.
In order to solve the above technical problems, the present invention provides following technical scheme：
A kind of gasification furnace, synthesis gas technology, including housing, air distribution plate and heating dress are prepared for coal chemistry chain oxygen carrier
Put, the heater is located at the inside of the housing, the air distribution plate is located at the centre position of the housing and by the shell
The inner chamber of body is divided into first inner chamber and second inner chamber, the first inner chamber and coal dust and oxygen carrier inlet tube, syngas outlet pipe,
Oxygen carrier outlet is connected with oxygen carrier refeed line, and the second inner chamber is connected with steam entry pipe, is pacified on the air distribution plate
Equipped with the blast cap that can make vapor that the second inner chamber is flowed into by the first inner chamber.
Preferably, the inwall of the housing is provided with flame retardant coating, and the inwall of the flame retardant coating is provided with quartz glass inwall, described
Heater is embedded in the inside of the flame retardant coating, and the edge of the air distribution plate is embedded in the quartz glass inwall.
Preferably, the first inner chamber is provided with first baffle and second gear for changing coal dust and oxygen carrier flow direction
Plate, the first baffle is fixedly mounted on the quartz glass inwall, and the second baffle is fixedly mounted on the air distribution plate
On.
Preferably, the first baffle is quartz glass baffle plate, and the second baffle is heat-resisting steel shoe.
Preferably, the blast cap is cylindrical, and the circumferencial direction of the blast cap is provided with through hole, the bearing of trend of the through hole
With the axis direction of the blast cap into 80 ° to 85 ° angles, the through hole is provided with 1-3 layers, every layer along the axis direction of the blast cap
The number of the through hole is 3, and the circumference of every layer of through hole along the blast cap is evenly distributed, the aperture of the through hole
For 4mm to 6mm.
Preferably, the axis direction of the coal dust and oxygen carrier inlet tube with the axis direction of the housing into 50 ° to 70 °
Angle, the axis direction of the oxygen carrier outlet and the axis direction of the housing into 35 ° to 55 ° angles.
Preferably, the scum pipe for making dust granule discharge the first inner chamber is connected with the air distribution plate.
Preferably, the heater is Elema heater, and the heater is in the form of a column, the heater
Axis direction is parallel with the axis direction of the housing.
Preferably, the housing includes the upper casing and lower casing that are connected by flange, and the upper casing and the lower casing have
There is U-type groove, the U-type groove of the upper casing forms the first inner chamber, the U-type groove of the lower casing and the cloth wind with the air distribution plate
Plate shape is into the second inner chamber.
Preferably, the air distribution plate is additionally provided with fire clay near the side of the first inner chamber.
Gasification furnace provided by the present invention, including housing, air distribution plate and heater, the heater are located at the shell
The inside of body, the air distribution plate is located at the centre position of the housing and the inner chamber of the housing is divided into first inner chamber and second
Inner chamber, the first inner chamber and coal dust and oxygen carrier inlet tube, syngas outlet pipe, oxygen carrier outlet and oxygen carrier refeed line
Connection, the second inner chamber is connected with steam entry pipe, and being provided with the air distribution plate can make vapor by described first
Inner chamber flows into the blast cap of the second inner chamber.Coal dust and oxygen carrier enter the gasification furnace through the coal dust and oxygen carrier inlet tube
The first inner chamber, vapor enters the second inner chamber of the gasification furnace through the steam entry pipe, and vapor continues through institute
State blast cap and flow into the first inner chamber, coal dust, oxygen carrier and vapor mix in the first inner chamber, heater is the device
Heating, oxygen carrier and coal dust carry out gasification reaction under the fluidization of vapor, and oxygen carrier provides the oxygen atom in air
To coal dust, the oxygen carrier for losing oxygen atom is flowed out by oxygen carrier outlet, and oxygen atom is obtained again with air reaction, is led to again
Oxygen carrier refeed line into the first inner chamber is crossed, the gasification reaction in the gasification furnace is generated with H2, CO for main component conjunction
Into gas.The gasification reaction carried out in the device, fuel need not be contacted with oxygen, and oxygen atom is passed into combustion by oxygen carrier
Material, it is to avoid the process of oxygen purification, can be effectively cost-effective, meanwhile, the reaction without combustion process, effective saving
The energy.
In a preferred embodiment, the Part I of the housing is provided with first baffle and second baffle, described
One baffle plate is fixedly mounted on the quartz glass inwall, and the second baffle is fixedly mounted on the air distribution plate.Work as coal dust
And oxygen carrier is after the coal dust and oxygen carrier inlet tube enter the first inner chamber, the first baffle and the second gear
The setting of plate enables that coal dust and oxygen carrier fluidize state baffling and flow, and is sufficiently reacted with vapor, it is to avoid coal dust,
The gasification reaction of oxygen carrier and vapor is insufficient.
Brief description of the drawings
Fig. 1 is a kind of structural representation of specific embodiment of gasification furnace provided by the present invention；
Fig. 2 is gasification furnace Section A-A schematic diagram shown in Fig. 1；
Fig. 3 is the schematic top plan view of gasification furnace shown in Fig. 1；
Fig. 4 is a kind of air distributor structure schematic diagram of specific embodiment of gasification furnace shown in Fig. 1；
Fig. 5 is a kind of cap structure schematic diagram of specific embodiment of gasification furnace shown in Fig. 1；
Fig. 6 is a kind of top view of the cap structure of specific embodiment of gasification furnace described in Fig. 1.
Specific embodiment
Core of the invention is to provide a kind of gasification furnace, can effectively reduce the cost of synthesis gas preparation.
In order that those skilled in the art more fully understand the present invention program, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.
Fig. 1 is refer to, Fig. 1 is a kind of structural representation of specific embodiment of gasification furnace provided by the present invention.
In a kind of specific embodiment, the gasification furnace includes housing 1, air distribution plate 9 and heater 11.Air distribution plate 9
It is divided into first inner chamber 4 and second inner chamber 10, first inner chamber 4 and coal dust and load in the centre position of housing 1 and by the inner chamber of housing 1
Oxysome inlet tube 12, syngas outlet pipe 14, oxygen carrier outlet 15 are connected with oxygen carrier refeed line 16, second inner chamber 10 and water
Vapour inlet pipe 13 is connected.Blast cap 7 is installed, blast cap 7 is provided with can be such that vapor is flowed into by first inner chamber 4 on air distribution plate 9
The through hole of second inner chamber 10.Heater 11 is located at the inside of housing 1, and heater 11 can be provided for the reaction in housing 1
Heat.Housing 1 is in generally horizontal cylindrical, is made using carbon steel material, in addition, in order to ensure that oxygen carrier and coal dust can be abundant
Reaction, and sufficiently using the inner space of the gasification furnace, coal dust and oxygen carrier inlet tube 12 and oxygen carrier outlet 15
Gasification furnace both sides in the axial direction are located at respectively.
When the gasifier system is for synthesis gas, coal dust and oxygen carrier enter the gasification furnace through coal dust and oxygen carrier inlet tube 12
First inner chamber 4, i.e. reative cell, vapor sends into the second inner chamber 10 of gasification furnace, i.e. air compartment through steam entry pipe 13, and water steams
The through hole of blast cap 7 of the gas through being connected on air distribution plate 9 sends into the reative cell of the gasification furnace.The fluidisation of oxygen carrier and coal dust in vapor
The flowing in first inner chamber 4 under effect, and gasification reaction is carried out, there is oxygen carrier gasification reaction in coal dust, oxygen carrier and vapor
Generation is with H2, CO for main component synthesis gas.Under reacted oxygen carrier and part coal ash are sent into through oxygen carrier outlet 15
Trip operation, crude synthesis gas are then overflowed by syngas outlet pipe 14.
The oxygen carrier of oxygen atom is lost after oxygen carrier outlet 15 flows out, is reacted again with the oxygen atom in air
Oxygen atom newly is obtained, the oxygen carrier for retrieving oxygen atom comes back to the reaction of the gasification furnace by oxygen carrier refeed line 16
Room, continues as coal dust and provides oxygen atom.
Oxygen carrier can transmit oxygen, the heat transfer that can be generated oxidation reaction again to reduction reactor.Oxygen carrier
Including metal oxygen carrier and nonmetallic oxygen carrier, metal oxygen carrier mainly have Ni, Fe, Co, Mn, Cu, Cd etc. and its constitute answer
Metal oxide is closed, nonmetallic oxygen carrier mainly has CaSO4、BaSO4、SrSO4Deng sulfate oxygen carrier.
The inwall of housing 1 is also provided with flame retardant coating 2, and heater 11 is embedded in the inside of flame retardant coating 2, flame retardant coating 2 it is interior
Wall is also provided with quartz glass inwall 3, in the edge insertion quartz glass inwall 3 of air distribution plate 9, air distribution plate 9 and quartz glass
Gap between inwall 3 is sealed with refractory mortar.Quartz glass inwall 3 opens up aperture so that the pressure of furnace gas is acted on
On flame retardant coating 2, it is to avoid quartz glass inwall 3 bears the pressure in gasification furnace and damaged.
As shown in figure 4, air distribution plate 9 is also provided with fire clay 18 near the side of first inner chamber 4, fire clay 18 can have
The protection air distribution plate 9 of effect, it is to avoid air distribution plate 9 suffers damage in high temperature environments.
The first plate washer 61 and second baffle 62 are also provided with the first inner chamber 4 of the gasification furnace.First baffle 61 is fixed
On quartz glass inwall 3, second baffle 62 is fixedly mounted on air distribution plate 9.First baffle 61 and quartz glass inwall 3
It is integrally formed, is quartz glass material, second baffle 62 is heat resisting steel material, and first baffle 61 is equal with the number of the second plate washer 61
It is two, and first baffle 61 and second baffle 62 are generally perpendicular to air distribution plate.When coal dust and oxygen carrier flow into reative cell
Afterwards, can be in the presence of first baffle 61 and second baffle 62, baffling flowing increased oxygen carrier and coal dust in gasification furnace
Residence time.Need exist for illustrating, the quantity of first baffle 61 and second baffle 62 can set as needed, not office
It is limited to the quantity provided in the present embodiment.
As shown in Figure 5 and Figure 6, the blast cap 7 for being connected on air distribution plate 9 can be with cylindrical, and the circumferencial direction of blast cap 7 is provided with logical
Hole, the bearing of trend of through hole and the axis direction of blast cap 7 into 80 ° to 85 ° angles, through hole along the axis direction of blast cap 7 be provided with 1 to
3 layers (such as 2 layers), every layer of number of through hole is 3, and the circumference of every layer of through hole along blast cap 7 is evenly distributed, i.e., same water
Plain through holes angle is 120 °, and through-hole aperture is 4-6mm.Due to the height residing for through hole will be typically higher than it is resistance on air distribution plate 9
The height of chamotte 18, therefore the bearing of trend of through hole is designed as and the axis direction of blast cap 7 into 80 ° to 85 ° angles, Ke Yibao
Direction during card vapor outflow blast cap 7 for diagonally downward, can with the coal dust below lead to the hole site and oxygen carrier precursor reactant,
Avoid oxygen carrier and coal dust reaction insufficient, can effective energy saving, it is and then cost-effective.Through hole along blast cap 7 axis
Direction is provided with multilayer can ensure the in liberal supply of vapor, and the number of every layer of through hole is three and along the circumferential uniform of blast cap
Arrangement is to cause air-flow to be detained in order to avoid the positional symmetry of through hole.Certainly, other ensure that what vapor smoothly flowed out
Number of openings, position and aperture also may be used.
The axis direction of coal dust and oxygen carrier inlet tube 12 can be carried with the axis direction of housing 1 into 50 ° to 70 ° angles
The axis direction of oxysome outlet 15 and the axis direction of housing 1 into 35 ° to 55 ° angles.Above-mentioned setting, ensure that coal dust and
After oxygen carrier enters reative cell, while ensureing that vertical direction flows, additionally it is possible to towards horizontal direction flowing, oxygen carrier outlet
Pipe 15 is also configured as having certain angle with the axis direction of housing 1, be in order to ensure that oxygen carrier and coal dust can smoothly flow out,
Further, since oxygen carrier is solid with coal dust, in order to avoid oxygen carrier and coal dust are hoarded in oxygen carrier outlet 15, can make
Oxygen carrier outlet 15 is changed to perpendicular to the direction of air distribution plate, i.e. vertical direction after inclining the middle horizontal plane for extending to gasification furnace.
Above-mentioned level refers to the direction with the diameter parallel of housing 1, and vertical direction refers to the direction vertical with the axis of housing 1.
Scum pipe 17 can also be connected with air distribution plate 9.One end that scum pipe 17 is located in first inner chamber 4 should be with fire clay
18 is concordant, or less than fire clay 18.During gasification reaction, part oxygen carrier and coal dust can reunite, the load after reunion
Oxysome and coal dust discharge gasification furnace through scum pipe 17, it is to avoid residue is hoarded.
In order to ensure the durability of the pipeline that the gasification furnace is connected, pipeline uses quartz glass with reaction zone connected component
Pipeline, the pipeline not being directly connected to reaction zone is heat resisting steel pipeline, and two segment pipe socket joints connection, gap filling refractory mortar is close
Envelope, above-mentioned signified pipeline includes coal dust and oxygen carrier inlet tube 12, oxygen carrier refeed line 16, syngas outlet pipe 14, oxygen carrier
Outlet 15 and scum pipe 17.
As shown in Fig. 2 heater 11 is that can be Elema, heater 11 is in the form of a column, the axis of heater 11
Direction is parallel with the axis direction of housing 1.Because the gasification reaction in gas stove is carried out in reative cell, therefore heating dress
Put 11 to be embedded only in the flame retardant coating 2 of the first cavity 4, the length direction of Elema is parallel with the axis direction of housing 1.On
State and be disposed to ensure the homogeneous heating in housing 1 in the axial direction.Certainly, the number of Elema can be multiple, multiple
Elema is arranged in circular arc, uniform to ensure reaction heating effect throughout the room.
As shown in figure 3, housing 1 includes the upper casing and lower casing that are connected by flange, and upper casing and lower casing are respectively provided with U-type groove,
The U-type groove of upper casing forms first inner chamber 4 with air distribution plate 9, and U-type groove and the air distribution plate 9 of lower casing form second inner chamber 10.Flange is connected
Ensure that the sealing and security of housing 1.In addition, the cross section of the end socket 8 at the two ends of housing 1 can be circular or oval
Shape, the pressure-resistant effect of end socket of circular or oval cross section is good, additionally, being adopted between upper lid and two parts end socket of lower cover
It is connected with, and pad is set between two parts end socket, ensures the sealing effectiveness and pressure-resistant effect of housing.Above-mentioned meaning
Upper lid be that, when the gasification furnace is normally placed, housing 1 is located at the part of air distribution plate 9 and gravity direction opposite side, lower cover is
Refer to that housing 1 is located at the part of air distribution plate 9 and gravity direction phase the same side.
Gasification furnace provided by the present invention is a kind of gasification furnace that synthesis gas technology is prepared for coal chemistry chain oxygen carrier,
It is a kind of fluidized-bed reactor, material is in fluidized state in reactor.The gasification reaction carried out in the device, fuel and oxygen
Oxygen atom is passed to fuel by gas without contact by oxygen carrier, it is to avoid the process of oxygen purification, can effectively be saved into
This, meanwhile, the reaction has effectively saved the energy without combustion process.
Operating pressure in the gasification furnace is 0.1-0.3MPa, and reative cell operating temperature is 900-1200 DEG C, main to occur
Hereinafter react：
CaSO4+C→CaS+CO
H2O+C→H2+CO
H2O+CO→H2+CO2
CO2+CaO→CaCO3
CaO+H2S→CaS+H2O
CaO+COS→CaS+CO2
Gasification furnace provided by the present invention is described in detail above.Specific case used herein is to the present invention
Principle and implementation method be set forth, the explanation of above example is only intended to help and understands the method for the present invention and its core
Thought is thought.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention,
Some improvement and modification can also be carried out to the present invention, these are improved and modification also falls into the protection domain of the claims in the present invention
It is interior.
Claims (8)
1. a kind of gasification furnace, synthesis gas technology is prepared for coal chemistry chain oxygen carrier, it is characterised in that including housing (1), cloth
Aerofoil (9) and heater (11), the heater (11) are located at positioned at the inside of the housing (1), the air distribution plate (9)
The inner chamber of the housing (1) is simultaneously divided into first inner chamber (4) and second inner chamber (10) by the centre position of the housing (1), described
First inner chamber (4) and coal dust and oxygen carrier inlet tube (12), syngas outlet pipe (14), oxygen carrier outlet (15) and oxygen carrier
Refeed line (16) is connected, and the second inner chamber (10) is connected with steam entry pipe (13), and energy is provided with the air distribution plate (9)
Enough make vapor that the blast cap (7) of the first inner chamber (4) is flowed into by the second inner chamber (10)；
The blast cap (7) is cylindrical, and the circumferencial direction of the blast cap (7) is provided with through hole, the bearing of trend of the through hole and institute
The axis direction of blast cap (7) is stated into 80 ° to 85 ° angles, the through hole is provided with 1-3 layers along the axis direction of the blast cap (7), often
The number of the layer through hole is 3, and the circumference of every layer of through hole along the blast cap (7) is evenly distributed, the through hole
Aperture be 4mm to 6mm；
The scum pipe (17) for making dust granule discharge the first inner chamber (4) is connected with the air distribution plate (9).
2. gasification furnace according to claim 1, it is characterised in that the inwall of the housing (1) is provided with flame retardant coating (2), institute
The inwall for stating flame retardant coating (2) is provided with quartz glass inwall (3), and the heater (11) is embedded in the inside of the flame retardant coating (2),
The edge of the air distribution plate (9) is embedded in the quartz glass inwall (3).
3. gasification furnace according to claim 2, it is characterised in that the first inner chamber (4) be provided with for change coal dust and
The first baffle (61) and second baffle (62) of oxygen carrier flow direction, the first baffle (61) are fixedly mounted on the quartz
On glass inner wall (3), the second baffle (62) is fixedly mounted on the air distribution plate (9).
4. gasification furnace according to claim 3, it is characterised in that the first baffle (61) is quartz glass baffle plate, institute
It is heat-resisting steel shoe to state second baffle (62).
5. gasification furnace according to claim 1, it is characterised in that the axis side of the coal dust and oxygen carrier inlet tube (12)
To the axis direction with the housing (1) into 50 ° to 70 ° angles, the axis direction of the oxygen carrier outlet (15) with it is described
The axis direction of housing (1) is into 35 ° to 55 ° angles.
6. gasification furnace according to claim 1, it is characterised in that the heater (11) is Elema heater,
The heater (11) is in the form of a column, and the axis direction of the heater (11) is parallel with the axis direction of the housing (1).
7. gasification furnace according to claim 1, it is characterised in that the housing (1) includes the upper casing that is connected by flange
And lower casing, and the upper casing and the lower casing are respectively provided with U-type groove, the U-type groove of the upper casing forms described with the air distribution plate (9)
First inner chamber (4), the U-type groove of the lower casing forms the second inner chamber (10) with the air distribution plate (9).
8. gasification furnace according to claim 1, it is characterised in that the air distribution plate (9) is near the first inner chamber (4)
Side is additionally provided with fire clay (18).
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| CN201510032686.7A CN104560211B (en) | 2015-01-22 | 2015-01-22 | Gasification furnace |
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|---|---|---|---|
| CN201510032686.7A CN104560211B (en) | 2015-01-22 | 2015-01-22 | Gasification furnace |
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| CN104560211A CN104560211A (en) | 2015-04-29 |
| CN104560211B true CN104560211B (en) | 2017-05-24 |
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| CN204400927U (en) * | 2015-01-22 | 2015-06-17 | 兖矿集团有限公司 | A kind of vapourizing furnace |
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| CN103423739B (en) * | 2013-07-30 | 2015-08-26 | 中国华能集团清洁能源技术研究院有限公司 | A kind of Wear-resistance leak-proof slag blast cap with combination core pipe |
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| CN103756733A (en) * | 2014-01-23 | 2014-04-30 | 上海锅炉厂有限公司 | Two-stage fuel reactor structure and technological process |
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| CN204400927U (en) * | 2015-01-22 | 2015-06-17 | 兖矿集团有限公司 | A kind of vapourizing furnace |
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