CN202543145U - Direct coal liquefaction residue and coal forming and retorting equipment - Google Patents
Direct coal liquefaction residue and coal forming and retorting equipment Download PDFInfo
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- CN202543145U CN202543145U CN2012200194836U CN201220019483U CN202543145U CN 202543145 U CN202543145 U CN 202543145U CN 2012200194836 U CN2012200194836 U CN 2012200194836U CN 201220019483 U CN201220019483 U CN 201220019483U CN 202543145 U CN202543145 U CN 202543145U
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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
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Abstract
The utility model discloses direct coal liquefaction residue and coal forming and retorting equipment which mainly comprises a pulverized coal feeding device, a direct coal liquefaction residue feeding device, a mixing device, a pulverized coal former and a retorting device. The pulverized coal feeding device and a discharging end of the direct coal liquefaction residue feeding device are connected with a feeding end of the mixing device, a discharging end of the mixing device is connected with a feeding end of the pulverized coal former, and a discharging end of the pulverized coal former is connected with a feeding end of the retorting device through a material conveyor. By adopting the structure, the separation of direct coal liquefaction residues is achieved while high-quality coal tar in coal is pyrolyzed out, so that economic value of the coal is greatly improved. Distillable oil, gases and semicoke are obtained by retorting, generated heavy oil can be used as recycle solvent to prepare coal slurry, generated gases can be used as fuel gases or used for preparing hydrogen, and coke can be used in gasification furnaces for gasification or waste heat furnaces for burning, so that product added value is increased.
Description
Technical field
The utility model belongs to coal Upgrading Processes field, is specifically related to a kind of coal directly-liquefied residue and coal moulding distillation apparatus.
Background technology
Coal direct liquefaction is the coal Upgrading Processes that the direct shortening of coal changes into product liquid.Its technology is to wear into powder to coal earlier; Be made into coal slurry with the liquefaction heavy oil (circulating solvent) that self produces again; Direct hydrogenation under certain temperature and pressure changes into coal petroleum productss such as gasoline, diesel oil, and 1 ton of moisture ash free coal can produce 500～600 kilograms of oil; Add that hydrogen manufacturing uses coal, about 3～4 tons of raw coal produce 1 ton of processed oil.Through coal liquefaction, not only can produce gasoline, diesel oil, LPG (LPG liquefied petroleum gas), rocket(engine)fuel, can also extract BTX (benzene,toluene,xylene), also can manufacture the raw material of ethene.In the actual mechanical process, the inorganic mineral that contains in liquefy unreacted coal and the coal and the catalyzer of adding always mix with solid-state form and partial liquefaction heavy oil, are difficult to separate, and are called as the liquefaction dregs of fat.Liquefied residue is the by product of a kind of high charcoal, high ash, contains 40～50% solid matters as the one of which, mainly is unconverted coal, coal mineral, catalyzer etc., and other contains 20% the BO of having an appointment, and all the other are asphaltene and preceding asphaltene.The amount of the liquefied residue that coal direct liquefaction produces is very big, accounts for 20～40% of feed coal, therefore, how efficiently to utilize those coal direct liquefaction residues that economy and the environment protection that improves coal liquefaction process had great significance.
At present, the approach that utilizes of coal direct liquefaction residue mainly contains traditional ways such as gasification, burning and coking.Be when former kinds of typical coal direct liquefaction residue treatment technology and shortcoming as follows:
A, U.S. HTI technology: this technology grows up on two-stage catalytic liquefaction process and H-COAL technology basis; Liquefied residue separates employing critical solvent method of extraction; From liquefied residue, reclaim BO to greatest extent, thereby increased substantially the liquefaction oil yield.But this technology is complicated, limited by extraction agent, and the extraction agent loss is bigger.
B, Japanese NEDOL technology: liquefied residue separates the method that adopts underpressure distillation, but still has quite a few oil also residual, so oily yield is not high.
C, German gelatin liquefaction novel process (IGOR technology): liquefied residue separate the filter of correcting one's mistakes, centrifugal be the vacuum flashing method, the asphaltene that will be difficult to hydrogenation is stayed gasification hydrogen-producing in the residue, but oily yield is not high.
The Pyrosol DCL/Direct coal liquefaction technology of D, Germany: utilize the residue continuous hydrogenation coking of will reducing pressure of rotation coking furnace, but belong to the low temperature coking, oily productive rate is lower.
E, U.S. Exxon DCL/Direct coal liquefaction technology: adopt flexicoking method destructive distillation liquefied residue; Flexicoking is exactly to utilize the coke powder that self the produces fluidized bed coking process as thermal barrier; Its coking oil productive rate is 5%～10% (to feed coal); But its complex process, investment is high, in petroleum residual oil processing, certain application is arranged at present.
F, domestic Beijing Coal-Chemical Branch of Coal-Science General Academy utilize 40kg coking test device tentatively to inquire into the possibility of carrying out the direct coking of liquefied residue with chamber type coke furnace, but this covering device is the high temperature periodical operation, and oily yield is not high.In addition, a lot of research work have also been done in domestic utilization for directly liquefying coal into oil residue used.Disclosed like CN200610012547.9 is the application method that directly liquefying coal into oil residue used is made road asphalt modifier; CN200510047800.X is disclosed to be to utilize directly liquefying coal into oil residue used to be raw material, and arc plasma prepares the carbon nano fiber material; CN101109516A and CN101109503A provide and have utilized directly liquefying coal into oil residue used to act as a fuel, and the hot melt attitude gets into the application method of circular fluid bed.The processing of these several kinds of liquefied residues also is oil not to be put forward from the coal direct liquefaction residue, has wasted a large amount of high-quality oil products.
The utility model content
The purpose of the utility model is the weak point to prior art; A kind of coal directly-liquefied residue and coal moulding distillation apparatus are provided; It utilizes coal directly-liquefied residue and coal dust to process moulded coal and carries out destructive distillation; Make coal directly-liquefied residue can further change into retortable oil, gas and semicoke, coal directly-liquefied residue is fully utilized, the coal that adds during moulding simultaneously also produces destructive distillation gas, coalite tar in retort process; Oily productive rate is improved greatly, and the semicoke thermal value that produces after the moulded coal destructive distillation also improves than the semicoke thermal value that the independent destructive distillation of coal is produced greatly.
For achieving the above object, the utility model adopts following technical scheme:
Coal directly-liquefied residue and coal moulding distillation apparatus; Mainly form by coal dust feeding device, coal directly-liquefied residue feeding device, mixing device, briquetting press and destructive distillation device; Said coal dust feeding device is connected with the feed end of mixing device with coal directly-liquefied residue feeding device discharge end; The discharge end of said mixing device is connected with the feed end of briquetting press, and the discharge end of said briquetting press is connected with the feed end of destructive distillation device through material conveyor.
Further; Said coal dust feeding device mainly is made up of run coal bin, drying plant, compound dry-dressing machine and gas wash tower; The discharge end of said run coal bin is connected with the opening for feed of drying plant; The discharge end of said drying plant is connected through material conveyor with the feed end of compound dry-dressing machine, and the feeding mouth of said gas wash tower is connected with compound dry-dressing machine with drying plant respectively through pipeline, and the discharge port of said gas wash tower is connected with the feed end of mixing device through material conveyor.
As preferably, said drying plant is the vibrating mixed flow drying machine.
Further, the said coal directly-liquefied residue feeding device vacuum distillation tower that is DCL/Direct coal liquefaction equipment.
As preferably, said destructive distillation device is a gas retort.
The utility model had both solved the separation problem of coal directly-liquefied residue through adopting said structure, again the fat coal tar pyrolysis in the coal was come out simultaneously, improved the economic worth of coal greatly; Moulded coal to mixing coal liquefied residue production further changes into retortable oil, gas and semicoke through destructive distillation; The BO that produces can be as circulating solvent coal blending slurry; The gas that produces can be used as fuel gas or is used for hydrogen manufacturing; Coke then can be used for vapourizing furnace gasification or waste-heat oven burning, has improved value-added content of product.
Description of drawings
Fig. 1 is the structural representation of the utility model.
The 11-run coal bin; The 12-drying plant; The compound dry-dressing machine 14-of 13-gas wash tower; The 15-pipeline; 2, the vacuum distillation tower of DCL/Direct coal liquefaction equipment, 3-mixing device; The 4-briquetting press; The 5-gas retort; The 6-material conveyor.
Embodiment
As shown in Figure 1, described coal directly-liquefied residue of the utility model and coal moulding distillation apparatus mainly are made up of coal dust feeding device, coal directly-liquefied residue feeding device, mixing device, briquetting press and destructive distillation device.
Said coal dust feeding device mainly is made up of run coal bin 11, drying plant 12, compound dry-dressing machine 13 and gas wash tower.The discharge end of run coal bin 11 is connected with the opening for feed of drying plant 12.The feed end of the discharge end of drying plant 12 and compound dry-dressing machine 13 is connected through material conveyor 6.The feeding mouth of gas wash tower 14 is connected with compound dry-dressing machine 13 with drying plant 12 respectively through pipeline 15.The discharge port of gas wash tower 14 is connected with the feed end of mixing device 3 through material conveyor 6.The drying plant 12 preferred vibrating mixed flow drying machines that use of present embodiment.
The coal directly-liquefied residue feed is the vacuum distillation tower 2 of DCL/Direct coal liquefaction equipment, like the disclosed vacuum distillation tower that utilizes employed DCL/Direct coal liquefaction equipment in the thermally dissolving and catalytic method that brown coal produce liquid fuel of CN200710032428.4.
Destructive distillation device is a gas retort 5.
The working process of the utility model is following:
It is dry that raw coal (low-quality coal such as brown coal) gets into drying plant from run coal bin, and lumped coal gets into compound dry-dressing machine through material conveyor and sub-elects cleaned coal, middle coal and spoil.And the coal dust that vibrating mixed flow drying machine and compound dry-dressing machine produce gets into gas wash tower through pipeline.Coal dust in the gas wash tower is transported in the mixing device through material conveyor.Coal directly-liquefied residue is as the vacuum distillation tower entering mixing device of briquette binder from DCL/Direct coal liquefaction equipment.In mixing device, behind coal directly-liquefied residue and the coal dust thorough mixing, mixture is transported to through material conveyor and processes moulded coal in the briquetting press.Moulded coal in the briquetting press is conveyed into by material conveyor and carries out destructive distillation in the gas retort, obtains retortable oil, gas and semicoke.
The drying plant of present embodiment is a kind of of multiple dehumidification system or drying machine, and other dehumidification system and drying plant also can meet the demands.
In addition, the coal dust feed of the utility model can also have following several kinds of situation except that after drying, mixing with coal directly-liquefied residue the technology of moulding then again:
1, feed coal directly mixes moulding then without drying with liquefied residue.
2, if the ash content in the feed coal is lower or can't isolating situation is next do not need compound dry-dressing machine that coal is carried out dry separation, and can directly mix, moulding.
3, if the ash content in the feed coal is higher and can carry out ore dressing, then need ore dressing, just mix, stir moulding then.
Claims (5)
1. coal directly-liquefied residue and coal moulding distillation apparatus; It is characterized in that; Mainly form by coal dust feeding device, coal directly-liquefied residue feeding device, mixing device, briquetting press and destructive distillation device; Said coal dust feeding device is connected with the feed end of mixing device with coal directly-liquefied residue feeding device discharge end, and the discharge end of said mixing device is connected with the feed end of briquetting press, and the discharge end of said briquetting press is connected with the feed end of destructive distillation device through material conveyor.
2. coal directly-liquefied residue according to claim 1 and coal moulding distillation apparatus; It is characterized in that; Said coal dust feeding device mainly is made up of run coal bin, drying plant, compound dry-dressing machine and gas wash tower; The discharge end of said run coal bin is connected with the opening for feed of drying plant; The discharge end of said drying plant is connected through material conveyor with the feed end of compound dry-dressing machine, and the feeding mouth of said gas wash tower is connected with compound dry-dressing machine with drying plant respectively through pipeline, and the discharge port of said gas wash tower is connected with the feed end of mixing device through material conveyor.
3. coal directly-liquefied residue according to claim 2 and coal moulding distillation apparatus is characterized in that said drying plant is the vibrating mixed flow drying machine.
4. coal directly-liquefied residue according to claim 1 and coal moulding distillation apparatus is characterized in that said coal directly-liquefied residue feeding device is the vacuum distillation tower of DCL/Direct coal liquefaction equipment.
5. coal directly-liquefied residue according to claim 1 and coal moulding distillation apparatus is characterized in that said destructive distillation device is a gas retort.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200194836U CN202543145U (en) | 2012-01-17 | 2012-01-17 | Direct coal liquefaction residue and coal forming and retorting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200194836U CN202543145U (en) | 2012-01-17 | 2012-01-17 | Direct coal liquefaction residue and coal forming and retorting equipment |
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| Publication Number | Publication Date |
|---|---|
| CN202543145U true CN202543145U (en) | 2012-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012200194836U Expired - Lifetime CN202543145U (en) | 2012-01-17 | 2012-01-17 | Direct coal liquefaction residue and coal forming and retorting equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107384443A (en) * | 2017-09-04 | 2017-11-24 | 沈阳鑫博工业技术股份有限公司 | A kind of controllable type air-lock device and its application method |
-
2012
- 2012-01-17 CN CN2012200194836U patent/CN202543145U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107384443A (en) * | 2017-09-04 | 2017-11-24 | 沈阳鑫博工业技术股份有限公司 | A kind of controllable type air-lock device and its application method |
| CN107384443B (en) * | 2017-09-04 | 2023-06-27 | 沈阳鑫博工业技术股份有限公司 | Controllable air locking device and application method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121121 |
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| CX01 | Expiry of patent term |