CN208964867U - Coke powder high-efficiency gasification system and coal comprehensive utilization and coke powder high-efficiency gasification system - Google Patents
Coke powder high-efficiency gasification system and coal comprehensive utilization and coke powder high-efficiency gasification system Download PDFInfo
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- CN208964867U CN208964867U CN201820578162.7U CN201820578162U CN208964867U CN 208964867 U CN208964867 U CN 208964867U CN 201820578162 U CN201820578162 U CN 201820578162U CN 208964867 U CN208964867 U CN 208964867U
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Abstract
The utility model provides coke powder high-efficiency gasification system and coal comprehensive utilization and coke powder high-efficiency gasification system, the system of coke powder high-efficiency gasification includes: dry powder gasification unit, the coke powder and Quench and washing, purifying are carried out to the resulting product of gasifying for gasifying, to obtain synthesis gas, solid slag and Heisui River containing the coke powder not reacted completely；Thickening unit is settled, for being settled to Heisui River, and therefrom isolated buck and carbon containing mortar；Coal water slurry gasification unit, for receiving carbon containing mortar and it being mixed with water-coal-slurry with coal dust and coal-grinding water, it is also used to carry out water-coal-slurry gasification and Quench and washing, purifying is carried out to the resulting product that gasifies, to obtain synthesis gas, solid slag and containing the coal/coke powder Heisui River that do not react completely.System provided by the utility model is, it can be achieved that the high efficiency of coal and coke powder, high conversion, high added value, low consumption and low environmental protection pressure using and converting.
Description
Technical field
The utility model relates to coal resources utilize technical field, in particular to a kind of system of coke powder high-efficiency gasification, with
And a kind of coal hierarchical synthesis utilizes and the system of coke powder high-efficiency gasification.
Background technique
China is the country of a rich coal, oil-poor, few gas, the consumption figure of coal account for the 60% of non-renewable energy consumption figure with
On, in either present or following a period of time, energy resource structure of the China based on coal is difficult to change.Coal in China
In field of energy utilization, except part, consumption is in addition to burning coal obtains energy, remaining is entirely to utilize coal production chemicals.
One is utilizing low temperature pyrogenation technology, 400-600 DEG C at a temperature of, volatilization separation coal itself, after separation
To burnt oil and gas, tar can add separating oil after hydrogen, and coal gas is then used as fuel or coproduction chemicals.Solid residue is referred to as
Coke powder, coke or semi-coke are mainly ash content and simple substance carbon, and chemical reactivity is poor, are mainly used for metallurgy, chemical industry or conduct
Gasified raw material.
Another kind be by raw coal after physical treatment (broken, slurrying or milling) direct gasification, produce with carbon monoxide, hydrogen
Synthesis gas based on gas and methane, the raw material as the production of downstream chemical product.
In terms of the explored coal mine quality in China, the middle low-order coal proportion that moisture is high, volatile matter is high is very big, passes through
Pyrolytic technique can effectively extract the burnt oil and gas in its a large amount of volatile matter.But the coke powder of by-product/semicoke bad mechanical strength, it is uncomfortable
It is produced in metallurgy high furnace, and the demand of other field is fewer.And when as gasified raw material, because its paste-forming properties is poor, reaction
Poor activity is difficult to realize efficient conversion again.Raw coal direct gasification is then needed to consider the features such as raw coal water content is high, be volatilized simultaneously
Point in high added value tar product could not enough extract at low temperature but greater than 1300 DEG C at a temperature of be gasificated into single carbon
Object is closed, then cooling for chemicals production, causes the waste of energy and the energy.In addition in changeable current of market environment
The coke powder product of society, the production of coke enterprise is only supplied the stable development that metallurgy industry also limits coke enterprise, in certain spies
Different period coke powder further gasifying, the high chemicals of production added value is produced with overall arrangement, acquisition profit is also enterprise itself
The inevitable requirement for maintaining and developing.
In Chinese patent application CN107446600A and CN107384488A, the Poly-generation benefit of middle low-order coal is considered
With, but more pay close attention to the coal gas being in pyrolysis product, by dry distillation gas, fast pyrogenation gas and calcium carbide stove exhaust etc. into
The products such as the corresponding SNG of row integrated treatment coproduction, methanol, acetylene, ethylene glycol, polyethylene.And it is burnt to a large amount of solid by-product
Powder does not realize efficient, the classified utilization to coal and coke powder truly, belongs to coke-stove gas then only with combustion power generation
The comprehensive utilization of downstream product.
106753585 A of Chinese patent application CN discloses a kind of system and method for coal classified utilization, using raw coal
Coal gas and tar are extracted in pyrolysis, the classified utilization method that coke powder further gasifies, but it is only with 800-1000 DEG C of operation temperature
Fluidized-bed gasification furnace processing reactivity difference coke powder, the deficiencies of that there are gasification efficiencies is low, poor conversion.
Chinese patent application CN107446626A discloses a kind of coke pressurization continuous gasification production method, only with adding
Fixed bed gasification coke powder is pressed, transformation efficiency and the same lower and environmental protection pressure of conversion ratio are bigger.
In scheme disclosed in Chinese patent application CN105154121A and CN106433734A, low-order coal is appreciated
Property feature is unfavorable for direct gasification, extracts burnt oil and gas by classified utilization destructive distillation, coke powder is higher using reaction temperature, imitates
The higher airflow bed gasification furnace of rate gasifies.But even if in this way, due to coke powder reactivity difference feature, can still restrict it
Reach high conversion ratio, a large amount of complete coke powders of unreacted do not utilize further in fine ash, but useless directly as solid
The defects of gurry is disposed, and can still will appear high consumption, low efficiency after industrialization, cannot fully achieve the high-efficiency gasification of coke powder.
To sum up, the system and coke powder high-efficiency gasification and coal hierarchical synthesis for how developing a kind of coke powder high-efficiency gasification utilize
System, be one of the technological difficulties that the art urgently makes a breakthrough.
Utility model content
The purpose of this utility model is to provide a kind of systems of coke powder high-efficiency gasification；A kind of coal hierarchical synthesis is also provided
Using the system with coke powder high-efficiency gasification, using the system can realize coke powder/coal high efficiency, high conversion, high added value,
Low consumption and low environmental protection pressure using and converting.
The utility model be reach its purpose, the technical solution adopted is as follows:
The utility model provides a kind of system of coke powder high-efficiency gasification, comprising:
Dry powder gasification unit coke powder and carries out Quench and washing, purifying to the resulting product of gasifying for gasifying, to obtain
Synthesis gas, solid slag and the Heisui River containing the coke powder not reacted completely；
Thickening unit is settled, the sedimentation thickening unit is connected with the dry powder gasification unit, for from dry powder
The Heisui River of gasification unit is settled, and therefrom isolated buck and carbon containing mortar；
Coal water slurry gasification unit, the coal water slurry gasification unit are connected with the sedimentation thickening unit, come for receiving
From the carbon containing mortar for settling thickening unit and it is mixed with water-coal-slurry with coal dust and coal-grinding water, is also used to the water
Coal slurry carries out gasification and carries out Quench and washing, purifying to the resulting product that gasifies, to obtain synthesis gas, solid slag and contain
Coal/coke powder the Heisui River that do not react completely；
The sedimentation thickening unit is also used to settle to from the Heisui River of the coal water slurry gasification unit, and from
In isolated buck and carbon containing mortar.
Preferably, the dry powder gasification unit includes that dry powder pressure conveyer device, dry powder gasification, the first synthesis gas are net
Makeup is set and the first flash concentration device；
The dry powder pressure conveyer device is used to coke powder being delivered to the dry powder gasification；The dry powder gasification
It is useless to obtain crude synthesis gas, solid for carrying out gasification to coke powder and carrying out Quench and washing, purifying to the resulting product that gasifies
Slag and Heisui River containing the coke powder not reacted completely；
The first purified synthesis gas device is connected to the dry powder gasification, is gasified for receiving from the dry powder
The crude synthesis gas of device simultaneously carries out washing, purifying to it, to obtain the synthesis gas of purification and contain the black of the coke powder not reacted completely
Water；
The first flash concentration device connects with the dry powder gasification and the first purified synthesis gas device respectively
It is logical, for receiving respectively from containing the coke powder not reacted completely described in dry powder gasification and the first purified synthesis gas device
Heisui River, and it is flashed with obtain concentration Heisui River；
The sedimentation thickening unit is connected to the first flash concentration device, is filled with receiving through first flash concentration
It sets the Heisui River of concentration and it is settled.
Preferably, the coal water slurry gasification unit includes that coal-grinding pulping device, coal water slurry gasifying device, the second synthesis gas are net
Makeup is set and the second flash concentration device；
The coal-grinding pulping device is connected to sedimentation thickening unit, for receive the carbon containing mortar and by it with coal dust and
Coal-grinding water is mixed with water-coal-slurry；
The coal water slurry gasifying device carries out the water-coal-slurry for receiving the water-coal-slurry from coal-grinding pulping device
Gasify and Quench and washing, purifying are carried out to gasification products therefrom, to obtain crude synthesis gas, solid slag and contain completely instead
Coal/coke powder the Heisui River answered；
The second purified synthesis gas device is connected to the coal water slurry gasifying device, comes from the water-coal-slurry for receiving
The crude synthesis gas of gasification installation simultaneously carries out washing, purifying to it, to obtain the synthesis gas of purification and contain the coal not reacted completely
Charcoal/coke powder Heisui River；
The second flash concentration device respectively with the coal water slurry gasifying device and the second purified synthesis gas device
Connection is not reacted for receiving respectively from containing described in coal water slurry gasifying device and the second purified synthesis gas device completely
Coal/coke powder Heisui River, and it is flashed to obtain the Heisui River of concentration；
The sedimentation thickening unit is connected to the second flash concentration device, is filled with receiving through second flash concentration
It sets the Heisui River of concentration and it is settled.
Preferably, the sedimentation thickening unit includes Heisui River subsider；The Heisui River subsider is dodged with described first respectively
Inspissation compression apparatus and the connection of the second flash concentration device, it is dense respectively from the first flash concentration device and the second flash distillation for receiving
The Heisui River of the concentration of compression apparatus, and the Heisui River of the concentration is settled with therefrom isolated buck and carbon containing ash
Slurry.
Preferably, the sedimentation thickening unit further includes buck storage and conveying device, and the buck storage and conveying fill
It sets for receiving the buck in the Heisui River subsider, the buck storage and conveying device are filled with the first purified synthesis gas respectively
It sets and is connected to the second purified synthesis gas device, part buck is heated and fed to first and second purified synthesis gas device.
In preferred embodiment, the dry powder gasification unit further includes the first row being connected with dry powder gasification
Slag device, outside to the decompression of solid slag obtained in dry powder gasification and discharge system；
The coal water slurry gasification unit further includes coal slurry conveying device, for water-coal-slurry made from coal-grinding pulping device is defeated
It send to coal water slurry gasifying device；The coal water slurry gasification unit further includes the second deslagging dress being connected with coal water slurry gasifying device
It sets, for will be after the decompression of solid slag obtained in coal water slurry gasifying device outside discharge system.
The utility model also provides the system of a kind of coal comprehensive utilization and coke powder high-efficiency gasification, and the system comprises above
The coke powder high-efficiency gasification system, further includes pyrolysis of coal unit, and the pyrolysis of coal unit is for being pyrolyzed coal dust and separation pyrolyzing
Resulting product, to obtain tar, coal gas and for the coke powder supplied to the dry powder gasification unit.
Preferably, the pyrolysis of coal unit includes that pyrolysis reactor, gas and oil separating plant and coke powder collect separator；Institute
Pyrolysis reactor is stated for being pyrolyzed to coal dust, and obtains gaseous products and solid product；The gas and oil separating plant and institute
It states pyrolysis reactor and is connected to and is used to receive the gaseous products, with therefrom isolated burnt oil and gas；The coke powder is collected
Separator is connected to the pyrolysis reactor and is used to receive the solid product, with therefrom isolated coke powder.
In some specific embodiments, the dry powder gasification unit is equipped with dry powder pressure conveyer device and dry powder gasification dress
It sets, dry powder processing conveying device is used to the resulting coke powder of pyrolysis of coal unit being delivered to dry powder gasification.
Preferably, the system also includes crushing grinding devices, for raw coal crushing grinding is warm supplied to coal at being used for
Solve the coal dust of unit and coal water slurry gasification unit.
Technical solution provided by the utility model has the following beneficial effects:
Coal hierarchical synthesis provided by the utility model utilizes and the system of coke powder high-efficiency gasification, including coal pyrolysis and coke
The high-efficiency gasification of two parts of high-efficiency gasification of powder and coal, coke powder and coal is by dry powder gasification unit and coal water slurry gasification unit
With a shared sedimentation thickening unit composition.Raw coal obtains tar, coal gas and coke powder after pyrolysis.Coke powder gasifies single in dry powder
Member gasification, the coke powder not converted completely are being mixed with water with raw coal in the form of mortar after sedimentation thickening unit sedimentation thickening
Coal slurry, and second gasification reaction is carried out in coal water slurry gasification unit, it obtains the synthesis gas based on carbon monoxide and hydrogen and produces
Product；And the coal ash that cannot be reacted is discharged as solid slag, and the coke powder that may be present not reacted completely and coal pass through into
Carbon containing mortar is isolated after entering to settle thickening unit sedimentation, coal water slurry gasification unit is fed again into, recycles, until turning completely
Change.High to the utilization rate of coal using the system of the utility model, the coke powder poor to reactivity can realize 99% or more
Conversion ratio, carbon content is low in the waste residue of discharge.Coal and coke powder are handled using the system of the utility model, there is product
The features such as type is abundant, added value is high, stable and reliable operation, energy conservation and environmental protection, low energy consumption.
In the system of the utility model, dry powder gasification unit and coal water slurry gasification unit and sedimentation thickening unit phase interworking
It closes, it can be achieved that coke powder/coal high-efficiency gasification, finally obtains the synthesis gas product based on carbon monoxide and hydrogen, can be used for
The application fields such as other chemical industry synthesis, chemicals production.
The coal hierarchical synthesis of the utility model utilizes the classification benefit that can be used for coal with the system of coke powder high-efficiency gasification
With, the coke powder high-efficiency gasification system of the utility model can individually handle coke powder, using the system of the utility model, can make be
Product category of uniting is more abundant (tar, coke powder, coal gas, synthesis gas etc.), and factory can be adjusted to reach according to market situation
Bigger economic benefit.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of coke powder high-efficiency gasification system in a kind of embodiment of the utility model.
Fig. 2 is in a kind of embodiment of the utility model, and coal hierarchical synthesis utilizes and the knot of coke powder high-efficiency gasification system
Structure schematic diagram.
Specific embodiment
In order to better understand the technical solution of the utility model, the utility model is further described below with reference to embodiment
Content, but the content of the utility model is not limited only to following embodiment.
In the description of the present invention, term " first ", " second " only for ease of description and distinguish, and non-logarithmic amount or
The restriction of sequence.If each device or element used in the system of the utility model are not specified, it is normal that this field can be used
The related device or element of rule.
The utility model provides a kind of coke powder high-efficiency gasification system, and embodiment according to the present utility model should referring to Fig. 1
System includes dry powder gasification unit 200, sedimentation thickening unit 300, coal water slurry gasification unit 400.
Wherein, dry powder gasification unit 200 is for gasifying to coke powder, and carries out Quench to the resulting product that gasifies and wash
Purification is washed, to obtain synthesis gas, solid slag and the Heisui River containing the coke powder not reacted completely.Thickening unit 300 is settled to use
It is settled in the Heisui River from dry powder gasification unit 200, and therefrom isolated buck and carbon containing mortar.Coal water slurry gasification
Unit 400 is used to receive the carbon containing mortar from sedimentation thickening unit 300, and carbon containing mortar is mixed system with coal dust and coal-grinding water
Standby water-coal-slurry is also used to carry out water-coal-slurry gasification and carries out Quench and washing, purifying to the resulting product that gasifies, to obtain
Synthesis gas, solid slag and contain the coal/coke powder Heisui River that do not react completely.Sedimentation thickening unit 300, which is also used to receive, to be come
From the Heisui River of coal water slurry gasification unit 400, and sedimentation separation is carried out to it and obtains buck and carbon containing mortar.
Dry powder gasification unit 200 coke powder and carries out Quench and washing, purifying to the resulting product of gasifying for gasifying, to obtain
Obtain synthesis gas, solid slag and the Heisui River containing the coke powder not reacted completely.In some embodiments, dry powder gasification is single
Member 200 specifically includes dry powder pressure conveyer device 202, dry powder gasification 203, the first purified synthesis gas device 204 and first
Flash concentration device 205.Dry powder pressure conveyer device 202 is used to that normal pressure dry powder to be pressurizeed to and is transported to dry powder gasification 203,
Specially it is delivered to the gasification furnace of dry powder gasification 203.Dry powder gasification 203 is used to gasify to coke powder, and to gas
Change resulting product and carry out Quench and washing, purifying, to obtain crude synthesis gas, solid slag and containing the coke not reacted completely
The Heisui River of powder.First purified synthesis gas device 204 is connected with dry powder gasification 203, for receiving from dry powder gasification dress
203 crude synthesis gas is set, and washing, purifying is carried out to crude synthesis gas, to obtain the synthesis gas of purification and containing not reaction completely
Coke powder Heisui River.First flash concentration device 205 respectively with dry powder gasification 203 and the first purified synthesis gas device 204
It is connected, for receiving respectively from dry powder gasification 203 and the first purified synthesis gas device 204 containing completely anti-
The Heisui River for the coke powder answered, and it is flashed, to obtain the Heisui River of concentration.It settles thickening unit 300 and the first flash distillation is dense
Compression apparatus 205 is connected, and for receiving the Heisui River of the resulting concentration of the first flash concentration device 205, and sedimentation point is carried out to it
From obtaining buck and carbon containing mortar.
It in some embodiments, further include the first slag-draining device 206, the first row in dry powder gasification unit 200
Slag device 206 is connected with dry powder gasification 203, for depressurizing to solid slag obtained in dry powder gasification 203
And outside discharge system.
Dry powder gasification 203 used in dry powder gasification unit 200, using related device commonly used in the art,
Such as specifically can be coil wall or tubulation water wall structure, burner position can be spray or direct tube section side spray under overhead,
Burner quantity can be single assembled nozzle or multiple burners, and Quench form can be whole water Quench, the partial-chilled plus pot that gives up
Or the pot that gives up entirely.
In some embodiments, coal water slurry gasification unit 400 includes coal-grinding pulping device 401, coal water slurry gasification
Device 403, the second purified synthesis gas device 404 and the second flash concentration device 406.Coal-grinding pulping device 401 and sedimentation thickening
Unit 300 is connected, for receiving the carbon containing mortar from sedimentation thickening unit 300, and by carbon containing mortar and coal dust and coal-grinding
Water is mixed with water-coal-slurry.Coal water slurry gasifying device 403 is used to receive water-coal-slurry obtained by coal-grinding pulping device 401, and will
Water-coal-slurry carries out gasification and carries out Quench and washing, purifying to the resulting product that gasifies, to obtain crude synthesis gas, solid slag
With contain coal/coke powder Heisui River for not reacting completely.403 phase of second purified synthesis gas device 404 and coal water slurry gasifying device
Connection comes from crude synthesis gas obtained in coal water slurry gasifying device 403 for receiving, and carries out washing, purifying to crude synthesis gas,
To obtain the synthesis gas of purification and containing the coal/coke powder Heisui River that do not react completely.Second flash concentration device 406 divides
It is not connected with coal water slurry gasifying device 403 and the second purified synthesis gas device 404, the second flash concentration device 406 is for connecing
It receives and contains the coal/coke powder not reacted completely respectively from coal water slurry gasifying device 403 and the second purified synthesis gas device 404
Heisui River, and flash distillation is carried out to it to Heisui River for being concentrated.Thickening unit 300 is settled to go back and the second flash concentration device
406 are connected, and for receiving the Heisui River from the resulting concentration of the second flash concentration device 406, and settle to it, therefrom
Isolated buck and carbon containing mortar.
In some embodiments, it is additionally provided with coal slurry conveying device 402 in coal water slurry gasification unit 400, being used for will
Water-coal-slurry made from coal-grinding pulping device 401, which is delivered in coal water slurry gasifying device 403, to gasify.In some specific implementations
In mode, coal water slurry gasification unit 400 further includes the second slag-draining device 405, the second slag-draining device 405 and coal water slurry gasifying device
403 are connected, for will be after the decompression of solid slag obtained in coal water slurry gasifying device 403 outside discharge system.
Coal water slurry gasifying device 403 used in coal water slurry gasification unit 400 is equal using related device commonly used in the art
Can, such as can be refractory brick or water wall structure, burner position can be spray or direct tube section side spray under overhead, and burner quantity can
To be single assembled nozzle or multiple burners, Quench form can be whole water Quench, partial-chilled plus useless pot or the pot that gives up entirely.
First flash concentration device 205 and second used in dry powder gasification unit 200 and coal water slurry gasification unit 400 dodges
Inspissation compression apparatus 406 flashes Heisui River, can be two-stage flash or multistage flash distillation.
In some embodiments, sedimentation thickening unit 300 includes Heisui River subsider 301, and it is also preferable to include bucks
Storage and conveying device 302.Heisui River subsider 301 respectively with the first flash concentration device 205 and the second flash concentration device 406
Connection, Heisui River subsider 301 is for receiving respectively from 406 institute of the first flash concentration device 205 and the second flash concentration device
The Heisui River of the concentration obtained, and the Heisui River of concentration is settled, thus therefrom isolated buck and carbon containing mortar.Buck storage
And conveying device 302, for receiving buck obtained in Heisui River subsider 301；Buck storage and conveying device 302 also respectively with
First purified synthesis gas device 204 is connected with the second purified synthesis gas device 404, and part buck is heated and fed to
First purified synthesis gas device 204 and the second purified synthesis gas device 404, so that this part buck is slightly synthesized as washing, purifying
The cleaning solution of gas uses.Conveying equipment in buck storage and conveying device 302 uses the existing related device in this field, only
Has the relevant device for the function that buck is accommodated, heated and conveyed to buck, for example, the device specifically may include
For accommodating the ash water tank of buck, the grey water pump for conveying buck, grey water heating apparatus for heating buck etc.；Heisui River warp
After Heisui River subsider precipitating, supernatant liquor (referred to as buck) overflow enters in ash water tank, is then pumped into buck heating through buck
(specifically, such as can use the flash-off steam of first or second flash concentration device as heat source) is heated in equipment,
Buck after heating is delivered to the first purified synthesis gas device and the second purified synthesis gas device, for example can be equipped with buck conveying
Booster conveys；It is only that one kind enumerates herein.In some embodiments, buck storage and conveying device 302 in
Part buck is emitted into waste water treatment system in the form of waste water, prevents the enrichment of salinity in water.
In some embodiments, its preferred bottom of Heisui River subsider 301 is cone bottom, and Heisui River is in Heisui River subsider
Natural gravity settles in 301, and the buck overflow on top enters buck storage and conveying device 302, and the carbon containing mortar of bottom is the bottom of from
Portion's discharge is fed through coal water slurry gasification unit 400.In preferred some specific embodiments, first or second flash concentration is come from
Flocculant is added thereto, is used to help solid before entering Heisui River subsider 301 for the Heisui River of the concentration of device 205,406
Particle agglomeration sedimentation.The type of flocculant is not particularly limited, and carries out flocculated effect to Heisui River as long as can reach, such as
It can be anionic polyacrylamide class flocculant etc., additive amount for example may be controlled to 0.5-3mg/L.
The utility model also provides a kind of coal hierarchical synthesis and utilizes and the system of coke powder high-efficiency gasification, and referring to fig. 2, this is
System increase pyrolysis of coal unit 100 in previously described coke powder high-efficiency gasification system-based, remaining substantially with it is previously described
The system of coke powder high-efficiency gasification is identical, and something in common repeats no more.Pyrolysis of coal unit 100 is used to be pyrolyzed coal dust, and right
It is pyrolyzed obtained product to be separated, to obtain tar, coal gas and coke powder.The resulting coke powder of pyrolysis of coal unit 100 is used for
It is input in dry powder gasification unit 200.In specific some embodiments, pressurizeed by the dry powder in dry powder gasification unit 200
The resulting coke powder of pyrolysis of coal unit 100 is delivered to the dry powder gasification 203 in dry powder gasification unit 200 by conveying device 202
In handled.In some embodiments, pyrolysis of coal unit 100 includes pyrolysis reactor 101, gas and oil separating plant
102 and coke powder collect separator 201.Wherein, pyrolysis reactor 101 is used to coal dust carrying out pyrolytic reaction, to obtain gas
State product and solid product.Contain coal gas, tar, vapor and fraction solids particle in gaseous products, it is main in solid product
For coke powder.Gas and oil separating plant 102 is connected with pyrolysis reactor 101, isolated for receiving gaseous products, and therefrom
Burnt oil and gas.Coke powder collects separator 201 and is connected with pyrolysis reactor 101, and for receiving solid product, removal is wherein
Remaining coal ash, therefrom isolated coke powder.
It in some embodiments, include that tar traps separator in gas and oil separating plant 102, for separating and receiving
Collect the tar in gaseous products.Preferably, pyrolysis of coal unit 100 further includes tar purification device 103, for receiving Oil-gas Separation
The resulting tar of device 102 and purify remove a small amount of moisture and solid dust contained in tar removing, to obtain tar product.It is excellent
Choosing, pyrolysis of coal unit 100 further includes coal gas heat regenerator 104 and gas purification equipment 105, wherein coal gas heat regenerator 104
It is connected with gas and oil separating plant 102, is returned for receiving the separating obtained coal gas of gas and oil separating plant 102 and carrying out heat to it
It receives, gas purification equipment 105 is connected with coal gas heat regenerator 104, for receiving the coal gas through heat recovery, and removes and wherein presss from both sides
The moisture and dust of band, to obtain the coal that main component is carbon monoxide, hydrogen, methane and other a small amount of alkane derivatives
Gas product.
In some embodiments, the system of the utility model further includes crushing grinding device 500, the crushing grinding
Device 500 is connected with pyrolysis of coal unit 100 and coal water slurry gasification unit 400 respectively.Specifically, crushing grinding device 500 is distinguished
It is connected with pyrolysis reactor 101 and coal-grinding pulping device 401.Crushing grinding device 500 be used for raw coal carry out crushing grinding with
Coal dust is obtained, resulting coal dust is for supplying pyrolysis reactor 101 and coal-grinding pulping device 401.
The method that example introduction below carries out coke powder high-efficiency gasification using coke powder high-efficiency gasification system described above.The party
Method mainly comprises the steps that
1) coke powder is fed through dry powder gasification unit 200 and carries out gasification reaction, the temperature of gasification reaction is, for example, 1300-
1700 DEG C, pressure is, for example, 2.5-4.0MpaG；Quench and washing, purifying are carried out to the resulting product of gasification reaction, synthesized
Gas and solid waste residue and Heisui River containing the coke powder not reacted completely；
2) the resulting Heisui River of step 1) is fed through sedimentation thickening unit 300, Heisui River is settled, it is therefrom isolated
Buck and carbon containing mortar；
3) the resulting carbon containing mortar of step 2) is fed through coal water slurry gasification unit 400, is incited somebody to action in coal water slurry gasification unit 400
Carbon containing mortar mixed with coal dust and coal-grinding water carry out coal-grinding slurrying, be made water-coal-slurry, the concentration of water-coal-slurry for example control be >=
55wt% (such as 55-65wt%), viscosity, which for example controls, for example to be controlled for < 1200mPa.s, pH as 6-9；By water-coal-slurry and oxygen
Gas contact carries out gasification reaction in coal water slurry gasifying device 403, and it is 1300-1700 DEG C that the temperature of gasification reaction, which for example controls,
Pressure for example controls as 2.5-8.7MpaG；Quench and washing, purifying are carried out to the resulting product of gasification reaction, obtain synthesis gas,
Solid slag and contain the coal/coke powder Heisui River that do not react completely；
4) it settles sedimentation thickening unit 300 that the resulting Heisui River of step 3) is recycled in step 2) and further, therefrom
Isolated buck and carbon containing mortar, resulting carbon containing mortar is recycled in the coal water slurry gasification unit 400 in step 3), into one
Stepping promoting the circulation of qi.
Coal-grinding water used in coal water slurry gasification unit 400 can be the waste water generated in pyrolysis of coal unit 100.
The concentration for settling carbon containing mortar obtained in thickening unit 300 is preferably 20-30wt%.In some specific embodiment parties
In formula, the Heisui River in step 2) and step 4) enters before sedimentation thickening unit 300, and flocculant can be added thereto, to promote
Reunite into solid particle and settles.
In some embodiments, the dry powder gasification unit 200 in step 1) specifically includes dry powder pressurized delivered dress
Set 202, dry powder gasification 203, the first purified synthesis gas device 204 and the first flash concentration device 205.Gasify in dry powder and fills
It sets gasification reaction products therefrom in 203 to be quenched, primary wash purification is able in chilling process, obtains crude synthesis gas, solid
Waste residue and Heisui River containing the coke powder not reacted completely.Crude synthesis gas is fed through the first purified synthesis gas device 204 to wash
Purification is washed, the synthesis gas being purified and the Heisui River containing the coke powder not reacted completely.It will be obtained in dry powder gasification 203
Heisui River obtained in Heisui River and the first purified synthesis gas device 204 is fed through the first flash concentration device 205, obtains through flash distillation dense
The Heisui River of contracting, the solid content in the Heisui River preferably through the resulting concentration of the first flash concentration device 205 are 2-12wt%.In step 2)
The Heisui River for being fed through sedimentation thickening unit 300 is specially the Heisui River for the concentration that the first flash concentration device 205 obtains.In some tools
It further include the first slag-draining device 206, the first slag-draining device 206 and dry powder gasification in body embodiment, in dry powder gasification unit 200
Device 203 is connected, for depressurize to solid slag obtained in dry powder gasification 203 and outside discharge system.Utilize this
The phosphorus content of the utilization of the system coke powder of utility model, the solid slag outside final discharge system is low, and coke powder high conversion rate reaches
99% or more.
In some embodiments, the coal water slurry gasification unit 400 in step 3) specifically includes coal-grinding pulping device
401, coal water slurry gasifying device 403, the second purified synthesis gas device 404 and the second flash concentration device 406.In step 3),
The carbon containing mortar from step 2) is mixed with water-coal-slurry with coal dust and coal-grinding water in coal-grinding pulping device 401, water-coal-slurry is sent
Enter to contact in coal water slurry gasifying device 403 with oxygen and carries out gasification reaction；It is resulting to gasifying in coal water slurry gasifying device 403
Product carries out Quench and washing, purifying, obtains crude synthesis gas, solid slag and black containing the coal/coke powder not reacted completely
Water.Crude synthesis gas obtained in coal water slurry gasifying device 403 is fed through the second purified synthesis gas device 404 wash only
Change, the synthesis gas that is purified and containing the coal/coke powder Heisui River that do not react completely.By coal water slurry gasifying device 403 and
Heisui River obtained in two purified synthesis gas devices 404 is fed through in the second flash concentration device 406, is concentrated through flash distillation black
Water, the preferably solid content in the Heisui River of the concentration are 2-12wt%.In step 4), it is recycled to the Heisui River tool of sedimentation thickening unit 300
Body is the Heisui River for the concentration that the second flash concentration device 406 obtains.In some embodiments, coal water slurry gasification unit
Coal slurry conveying device is additionally provided in 400, for water-coal-slurry made from coal-grinding pulping device 401 to be delivered to coal water slurry gasifying device
Gasify in 403.In some embodiments, coal water slurry gasification unit 400 further includes the second slag-draining device 405, the
Two slag-draining devices 405 are connected with coal water slurry gasifying device 403, are used for solid slag obtained in coal water slurry gasifying device 403
After decompression outside discharge system.
The main component for the solid slag that first slag-draining device 206 and the second slag-draining device 405 are discharged is coal ash, micro
Unconverted carbon and a small amount of water, can be used as construction material use.Dry powder gasification unit 200 and coal water slurry gasification unit 400
In, the coke powder or coke powder/coal not reacted completely enter in Heisui River during Quench and washing, purifying, increase in sedimentation
After handling in thick unit 300, circulation subtracts for subsequent coal water slurry gasification unit 400 to greatly reduce the discharge amount of waste residue
Environmental pressure is lacked.
In some embodiments, sedimentation thickening unit 300 specifically includes Heisui River subsider 301 and buck storage
And conveying device 302.In step 3), the Heisui River specially by the resulting concentration of the first flash concentration device 205 is fed through Heisui River
Subsider 301 carries out the sedimentation；It is specially to recycle the Heisui River of the resulting concentration of the second flash concentration device 406 in step 5)
The sedimentation is carried out to Heisui River subsider 301；It is dense from the first flash concentration device 205 and the second flash concentration device 406
The Heisui River of contracting obtains buck and carbon containing mortar through sedimentation in Heisui River subsider 301.The method of the utility model further includes as follows
Step: the resulting buck of Heisui River subsider 301 is sent into (such as entrance by way of overflow) and stores and convey dress to buck
302 are set, and passes through the device for (such as can be hot to 150-160 DEG C) after the heating of part buck as solution needed for washing, purifying
It is delivered to the first purified synthesis gas device 204 and the second purified synthesis gas device 404, so that it is net to reduce by the first and second synthesis gas
Water needed for 404 washing, purifyings are set in makeup, makes full use of water resource, energy conservation and environmental protection, and can also further make full use of buck.
Example introduction below carries out coal using the system with coke powder high-efficiency gasification using coal hierarchical synthesis described above
Charcoal hierarchical synthesis utilizes and the method for coke powder high-efficiency gasification.Mainly include the following steps:
A) coal dust is fed through pyrolysis of coal unit 100 and carries out pyrolytic reaction, the temperature of pyrolytic reaction is, for example, 400-900
℃；Separation pyrolyzing reacts resulting product, obtains tar, coal gas and coke powder；The partial size of coal dust used is, for example ,≤5mm.Coke powder
Solid product after being dehydrated and removing coal volatile matter for coal pyrolysis, main component are fixed carbon and ash content.
B) coke powder is fed through dry powder gasification unit to gasify, Quench and washing, purifying is carried out to gasification products therefrom,
Obtain synthesis gas, solid slag and the Heisui River containing the coke powder not reacted completely；
C) the resulting Heisui River step b) is fed through sedimentation thickening unit, the Heisui River is settled, Cong Zhongfen
From obtaining buck and carbon containing mortar；
D) the resulting carbon containing mortar of step c) is fed through coal water slurry gasification unit, in coal water slurry gasification unit by carbon containing ash
Slurry is mixed with coal dust and coal-grinding water carries out coal-grinding slurrying, and water-coal-slurry is made, and the concentration of the water-coal-slurry is, for example, >=55wt%；It will
The water-coal-slurry gasifies, and to gasifying, resulting product carries out Quench and washing, purifying, obtains synthesis gas, solid slag and contains
There is the coal/coke powder Heisui River that do not react completely；
E) the resulting Heisui River step d) is recycled to sedimentation thickening unit described in step c) and settled, Cong Zhongfen
From buck and carbon containing mortar is obtained, resulting carbon containing mortar is recycled in the coal water slurry gasification unit of step d).
Step the b)-e of this method) with the step 1) -4 in the method for coke powder high-efficiency gasification described above) basic phase
Together, it is differing principally in that and increases step a), and the coke powder in step b) derives from step a), for step b)-e) can it join
About step 1) -4 in seing above) corresponding contents, repeat no more.
Coal-grinding water used in coal water slurry gasification unit 400 can be the waste water generated in pyrolysis of coal unit 100 or other
Organic wastewater.
In some embodiments, the pyrolysis of coal unit 100 in step a) specifically includes pyrolysis reactor 101, oil
Air separation 102 and coke powder collect separator 201.In step a), coal dust is fed through pyrolysis reactor 101 and is pyrolyzed
Reaction, obtains solid product and gaseous products；The temperature of pyrolytic reaction is, for example, 400-900 DEG C, and pyrolysis reactor 101 can be
Self-heating or outer hot form.Coal is pyrolyzed upgrading in pyrolysis of coal unit 100, at the moisture and most of volatile disengaging in coal
Reason forms gaseous products, and remaining is solid product.Pyrolytic process in pyrolysis of coal unit 100 specifically can be carbonization
Technique, hydropyrolysis technique etc..Gaseous products are fed through the progress of gas and oil separating plant 102 Oil-gas Separation and obtain burnt oil and gas.
Solid product is fed through coke powder and collects separator 201, the isolated coke powder from solid product.In some specific embodiments
One kind, coal gas obtain the coal gas product based on carbon monoxide, hydrogen and methane after further recuperation of heat and purified treatment；
The tar product of purification is obtained after tar is purified；Burnt oil and gas product can further deepen processing and obtain added value more
High chemical products.Wherein, tar can be used for oil product processing, such as plus hydrogen after obtain the oil products such as diesel oil, gasoline, naphtha.
It is described in text to refer to unreacted coal/coke powder after gasifying containing the coal/coke powder Heisui River that do not react completely
Enter in water after Quench, washing and is mixed to form water and unreacted coal/coke powder solidliquid mixture with water.
The example produced using system shown in Fig. 1 or 2 is introduced below.
Embodiment 1:
As a raw material for production with the bituminous coal of Inner Mongolia, coal data are as shown in table 1 below.The partial size of raw material bituminous coal be≤
50mm is produced using system shown in Fig. 2.Raw coal is broken grinding in crushing grinding device 500, the grain of gained coal dust
Degree control is at 100% < 1000 μm, 90% < 200 μm, 10% < 10 μm.Pyrolysis reactor 101 in pyrolysis of coal unit 100 uses
Carbonization system, pyrolysis reaction temperature are 700 DEG C, raw coal day output about 4500t, production tar -10t/h, coal gas -52,
000Nm3/ h (dry gas), coke powder -110t/h (0-1000 μm: 100% < 1000 μm of coke fines size, 90% < 200 μm, 10% < 10 μ
M, aqueous < 2wt%).Coke powder 50wt% or so is used as international sale, remaining coke powder is converted by dry powder gasification unit 200.
Mating a set of 1500 tonnes of dry powder coal gasification apparatus, vapor pressure 4.0MPaG, gasification temperature 1500 in dry powder gasification unit 200
DEG C, coke powder conversion ratio 88-90% produces synthesis gas -100,000Nm3/ h (dry gas), effective component CO+H2Accounting 89-91%.It is dry
The Heisui River of the concentration of the first flash concentration device 205 output in powder gasification unit 200, solid content concentration are 8-10wt%.
In coal water slurry gasification unit 400, mating 1 set of 1000 tonnes of coal water slurry gasifying device 403 (fire resisting brick gasification furnace),
1:3 mass is pressed containing coke powder/carbon mortar (i.e. carbon containing mortar) and raw coal (coal dust i.e. after crushing grinding) in coal-grinding pulping device 401
After (butt) mixing, coal-grinding slurrying, the concentration of water-coal-slurry obtained is 60-62wt%.Water-coal-slurry inputs coal water slurry gasification dress
It sets 403 to gasify, vapor pressure 4.0MPaG, 1400 DEG C of gasification temperature, conversion ratio (primary gas of carbon i.e. in water-coal-slurry
Change conversion ratio) 93-95%, produce synthesis gas -80,000Nm3/ h (dry gas), effective component CO+H2Accounting 80-82%.Water-coal-slurry
The solid content in the Heisui River of the concentration of the second flash concentration device 406 output of gasification unit 400 is 5-7wt%.
Total Water -23t/h can be obtained after processing using the dehydration of pyrolysis of coal unit 100, and the water consumption for meeting coal-grinding slurrying is wanted
It asks, the part water is as in coal-grinding water input coal-grinding pulping device 401.
It is mainly coal ash, traces of unreacted by the solid slag that the first slag-draining device 206 and the second slag-draining device 405 are discharged
Carbon and a small amount of water；The overall conversion of coke powder and coal reaches 99% or more.
Table 1: raw coal tables of data (% in the table refers both to mass fraction)
Embodiment 2:
As a raw material for production with the lignite of south east asia, coal data are as shown in table 2 below.The partial size of raw material lignite be≤
60mm is produced using system shown in Fig. 2.Raw coal is broken grinding in crushing grinding device 500, the grain of gained coal dust
Degree control is 100% < 1000 μm, 80% < 400 μm, 10% < 20 μm.Pyrolysis reactor 101 in pyrolysis of coal unit 100 uses
Low temperature distillation pyrolysis system, pyrolysis reaction temperature are 600 DEG C, and raw coal day output about 10,000t produces tar -25t/h, coal
Gas -100,000Nm3/ h (dry gas), coke powder -110t/h (0-1000 μm: 100% < 1000 μm of coke fines size, 80% < 400 μm,
10% < 20 μm, aqueous < 8wt%).Coke powder all passes through dry powder gasification unit 200 and is converted.Match in dry powder gasification unit 200
2 sets of 1500 tonnes of dry powder coal gasification apparatus of set, vapor pressure 4.0MPaG, 1550 DEG C of gasification temperature, coke powder conversion ratio 90-95%,
Produce synthesis gas -190,000Nm3/ h (dry gas), effective component CO+H2Accounting 90%.First in dry powder gasification unit 200 dodges
The Heisui River for the concentration that inspissation compression apparatus 205 exports, solid content concentration are 6-8wt%.
In coal water slurry gasification unit 400, mating 1 set of 1000 tonnes of coal water slurry gasifying device 403, coal-grinding pulping device 401
In after (i.e. grinding broken after coal dust) containing coke powder/carbon mortar (i.e. carbon containing mortar) and raw coal mix by 1:2 mass ratio (butt), grind
Coal slurrying, the concentration of water-coal-slurry obtained are 57-59wt%.Water-coal-slurry inputs coal water slurry gasifying device 403 and (uses water cooled wall type
Coal slurry gasifier) gasify, vapor pressure 4.0MPaG, 1450 DEG C of gasification temperature, a conversion ratio (i.e. carbon in water-coal-slurry
A gasification conversion) 92-95%, produce synthesis gas -65,000Nm3/ h (dry gas), effective component CO+H2Accounting 80%.
The solid content in the Heisui River of the concentration of the second flash concentration device 406 output of coal water slurry gasification unit 400 is 5-7wt%.
Total Water 130-135t/h can be obtained after processing using the dehydration of pyrolysis of coal unit 100, in the use for meeting coal-grinding slurrying
Water requirement, after use in coal-grinding water input coal-grinding pulping device 401, the water that there remains 130t/h or more can be used as factory
A water source use.
It is mainly coal ash, traces of unreacted by the solid slag that the first slag-draining device 206 and the second slag-draining device 405 are discharged
Carbon and a small amount of water；The overall conversion of coke powder and coal reaches 99% or more.
Table 2: raw coal tables of data (% in the table refers both to mass fraction)
Embodiment 3:
The coke powder and self-produced anthracite of certain company are converted for processing, coal data are as shown in table 3 below, and use is shown in FIG. 1
System is produced.Coke powder partial size is 10% < 50 μm, 40% < 150 μm, 80% < 300 μm, 100% < 700 μm.Anthracite grain
Diameter≤40mm, and the grinding that is broken in crushing grinding unit 500,100% < 1000 μm of granularity, 90% < 400 μm, 40% < 50
μm.Coke powder is converted by dry powder gasification unit 200 (using gasification furnace is sprayed under multiinjector overhead), and day handles raw coal 4000
Ton.Mating 2 sets of 2000 tonnes of dry powder coal gasification apparatus, vapor pressure 4.0MPaG, gasification temperature in dry powder gasification unit 200
1600 DEG C, coke powder conversion ratio 95-96%, produce synthesis gas -330,000Nm3/ h (dry gas), effective component CO+H2Accounting-
91%.The Heisui River of the concentration of the first flash concentration device 205 output in dry powder gasification unit 200, solid content concentration are 4-
5wt%.
In coal water slurry gasification unit 400, mating 1 set of 2000 tonnes of coal water slurry gasifying device 403, coal-grinding pulping device 401
In after (i.e. grinding broken after coal dust) containing coke powder/carbon mortar (i.e. carbon containing mortar) and raw coal mix by 1:4 mass ratio (butt), grind
Coal slurrying, the concentration of water-coal-slurry obtained are 62wt%.Water-coal-slurry inputs coal water slurry gasifying device 403 and (uses water cooled wall type water
Coal slurry gasification furnace) gasify, vapor pressure 4.0MPaG, 1500 DEG C of gasification temperature, conversion ratio (carbon i.e. in water-coal-slurry
Gasification conversion) -93%, produce synthesis gas -140,000Nm3/ h (dry gas), effective component CO+H2Accounting 80%.Water coal
The solid content for starching the Heisui River of the concentration of the second flash concentration device 406 output of gasification unit 400 is 7-9wt%.
It is mainly coal ash, traces of unreacted by the solid slag that the first slag-draining device 206 and the second slag-draining device 405 are discharged
Carbon and a small amount of water；The overall conversion of coke powder and coal reaches 99% or more.
Table 3: raw coal tables of data (% is mass fraction in table)
It will be understood by those skilled in the art that some repair can be made to the utility model under the introduction of this specification
Change or adjusts.These modifications or adjustment should also be as within the utility model claims limited range.
Claims (10)
1. a kind of system of coke powder high-efficiency gasification characterized by comprising
Dry powder gasification unit coke powder and carries out Quench and washing, purifying to the resulting product of gasifying for gasifying, to be synthesized
Gas and solid waste residue and Heisui River containing the coke powder not reacted completely；
Thickening unit is settled, the sedimentation thickening unit is connected with the dry powder gasification unit, for gasifying to from dry powder
The Heisui River of unit is settled, and therefrom isolated buck and carbon containing mortar；
Coal water slurry gasification unit, the coal water slurry gasification unit are connected with the sedimentation thickening unit, come from institute for receiving
It states the carbon containing mortar of sedimentation thickening unit and it is mixed with water-coal-slurry with coal dust and coal-grinding water, be also used to the water-coal-slurry
It carries out gasification and Quench and washing, purifying is carried out to the resulting product that gasifies, to obtain synthesis gas, solid slag and containing not complete
Coal/coke powder Heisui River of full response；
The sedimentation thickening unit is also used to settle to from the Heisui River of the coal water slurry gasification unit, and therefrom divides
From obtaining buck and carbon containing mortar.
2. system according to claim 1, which is characterized in that the dry powder gasification unit includes dry powder pressurized delivered dress
It sets, dry powder gasification, the first purified synthesis gas device and the first flash concentration device；
The dry powder pressure conveyer device is used to coke powder being delivered to the dry powder gasification；
The dry powder gasification is used to carry out coke powder gasification and carries out Quench and washing, purifying to the resulting product that gasifies, with
Obtain crude synthesis gas, solid slag and the Heisui River containing the coke powder not reacted completely；
The first purified synthesis gas device is connected to the dry powder gasification, comes from the dry powder gasification for receiving
Crude synthesis gas and washing, purifying is carried out to it, the synthesis gas to obtain purification and Heisui River containing the coke powder not reacted completely；
The first flash concentration device is connected to the dry powder gasification and the first purified synthesis gas device respectively, is used
In receiving respectively from black containing the coke powder that does not react completely described in dry powder gasification and the first purified synthesis gas device
Water, and it is flashed to obtain the Heisui River of concentration；
The sedimentation thickening unit is connected to the first flash concentration device, dense through the first flash concentration device to receive
The Heisui River of contracting simultaneously settles it.
3. system according to claim 2, which is characterized in that the coal water slurry gasification unit include coal-grinding pulping device,
Coal water slurry gasifying device, the second purified synthesis gas device and the second flash concentration device；
The coal-grinding pulping device is connected to sedimentation thickening unit, for receiving the carbon containing mortar and by itself and coal dust and coal-grinding
Water is mixed with water-coal-slurry；
The coal water slurry gasifying device gasifies the water-coal-slurry for receiving the water-coal-slurry from coal-grinding pulping device
And Quench and washing, purifying are carried out to gasification products therefrom, to obtain crude synthesis gas, solid slag and containing not reacting completely
Coal/coke powder Heisui River；
The second purified synthesis gas device is connected to the coal water slurry gasifying device, comes from the coal water slurry gasification for receiving
The crude synthesis gas of device simultaneously carries out washing, purifying to it, to obtain the synthesis gas of purification and contain the coal/coke not reacted completely
The Heisui River of powder；
The second flash concentration device is connected to the coal water slurry gasifying device and the second purified synthesis gas device respectively,
For receive respectively from described in coal water slurry gasifying device and the second purified synthesis gas device containing do not react completely coal/
The Heisui River of coke powder, and it is flashed to obtain the Heisui River of concentration；
The sedimentation thickening unit is connected to the second flash concentration device, dense through the second flash concentration device to receive
The Heisui River of contracting simultaneously settles it.
4. system according to claim 3, which is characterized in that the sedimentation thickening unit includes Heisui River subsider；It is described
Heisui River subsider is connected to the first flash concentration device and the second flash concentration device respectively, for receiving respectively from the
The Heisui River of the concentration of one flash concentration device and the second flash concentration device, and to the Heisui River of the concentration settled with
Therefrom isolated buck and carbon containing mortar.
5. system according to claim 4, which is characterized in that the sedimentation thickening unit further includes buck storage and conveying
Device, the buck storage and conveying device are used to receive the buck in the Heisui River subsider, the buck storage and conveying
Device is connected to the first purified synthesis gas device and the second purified synthesis gas device respectively, and part buck is heated and fed to
First and second purified synthesis gas device.
6. according to the described in any item systems of claim 3-5, which is characterized in that the dry powder gasification unit further includes and dry powder
The first connected slag-draining device of gasification installation, for the decompression of solid slag obtained in dry powder gasification and discharge system
Outside；
The coal water slurry gasification unit further includes coal slurry conveying device, for water-coal-slurry made from coal-grinding pulping device to be delivered to
Coal water slurry gasifying device；The coal water slurry gasification unit further includes the second slag-draining device being connected with coal water slurry gasifying device, is used
After by the decompression of solid slag obtained in coal water slurry gasifying device outside discharge system.
7. a kind of system of coal comprehensive utilization and coke powder high-efficiency gasification, which is characterized in that the system comprises claim 1-6
Described in any item coke powder high-efficiency gasification systems further include pyrolysis of coal unit, and the pyrolysis of coal unit is for being pyrolyzed coal dust and dividing
From resulting product is pyrolyzed, to obtain tar, coal gas and for the coke powder supplied to the dry powder gasification unit.
8. system according to claim 7, which is characterized in that the pyrolysis of coal unit includes pyrolysis reactor, oil gas point
Separator is collected from device and coke powder；The pyrolysis reactor obtains gaseous products and consolidates for being pyrolyzed to coal dust
State product；The gas and oil separating plant is connected to the pyrolysis reactor and is used to receive the gaseous products, therefrom to separate
Obtain burnt oil and gas；The coke powder collects separator and is connected to the pyrolysis reactor and is used to receive the solid-state production
Object, with therefrom isolated coke powder.
9. system according to claim 7 or 8, which is characterized in that the dry powder gasification unit is equipped with dry powder pressurized delivered
Device and dry powder gasification, dry powder processing conveying device are used to for the resulting coke powder of pyrolysis of coal unit being delivered to dry powder gasification dress
It sets.
10. system according to claim 7 or 8, which is characterized in that the system also includes crushing grinding devices, are used for
By raw coal crushing grinding at the coal dust being used for supplied to pyrolysis of coal unit and coal water slurry gasification unit.
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| CN201820578162.7U CN208964867U (en) | 2018-04-20 | 2018-04-20 | Coke powder high-efficiency gasification system and coal comprehensive utilization and coke powder high-efficiency gasification system |
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| CN201820578162.7U CN208964867U (en) | 2018-04-20 | 2018-04-20 | Coke powder high-efficiency gasification system and coal comprehensive utilization and coke powder high-efficiency gasification system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110387269A (en) * | 2018-04-20 | 2019-10-29 | 科林未来能源技术(北京)有限公司 | Coal hierarchical synthesis utilizes and the system and method for coke powder high-efficiency gasification |
-
2018
- 2018-04-20 CN CN201820578162.7U patent/CN208964867U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110387269A (en) * | 2018-04-20 | 2019-10-29 | 科林未来能源技术(北京)有限公司 | Coal hierarchical synthesis utilizes and the system and method for coke powder high-efficiency gasification |
| CN110387269B (en) * | 2018-04-20 | 2024-04-12 | 科林能源技术(北京)有限公司 | System and method for coal grading comprehensive utilization and coke powder efficient gasification |
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