CN207159148U - A kind of cleaning system of the coal tar containing coal dust - Google Patents
A kind of cleaning system of the coal tar containing coal dust Download PDFInfo
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- CN207159148U CN207159148U CN201721074354.6U CN201721074354U CN207159148U CN 207159148 U CN207159148 U CN 207159148U CN 201721074354 U CN201721074354 U CN 201721074354U CN 207159148 U CN207159148 U CN 207159148U
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- coal tar
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Abstract
The utility model provides a kind of cleaning system of coal tar containing coal dust, including：Preheating furnace, it is connected with coal tar oil-piping, for being preheated to the coal tar；Fractionating column, it is connected with the preheating furnace, for being fractionated to the coal tar after the preheating；Heating furnace, the heating furnace are connected with the fractionating column bottom；Green coke unit, including at least coke drum of two-stage parallel connection, the coke drum are connected with the heating furnace；Knockout tower, the knockout tower are connected with the top of the green coke unit and the fractionating column respectively.Described coal tar oil-cleaning system solves the problems, such as coal tar oil-cleaning system complex operation of the prior art, liquid yield is low and operating cost is high.
Description
Technical field
The utility model belongs to technical field of coal chemical industry, and in particular to a kind of cleaning system of coal tar containing coal dust.
Background technology
China is coal production and consumption big country, therefore has abundant tar resource, research and development coal tar production
The application field of product, it is that China plays resources advantage, improves product structure and realize the effective way of rapid economic development.Coal tar
Oil comes from pyrolytic process of coal, is a kind of multi-component mixture.Yet with the ash content in not purified coal tar and without fixed
The granule foreigns such as shape charcoal are more, seriously limit its processing characteristics, and application value is low.Therefore a kind of economical and effective is researched and developed
Coal tar oil purification processes not only there is significant economic benefit, while also there is obvious social benefit.
The method of coal tar oil purification at this stage mainly has following several：The first is to use thermosol filtration method, because its is right
The requirement of filter material is higher, and filter cake loss is larger, not yet promotes now practical；Second is centrifugal separation, and tar separation fills
It is three-phase separating device using horizontal screw centrifuge as capital equipment to put, and it is less efficient to less than 5 microns of dust separation, and is produced
The raw tar slag that largely can not be handled and utilize；The third separation method is standing sedimentation partition method, and this method is to pass through length
Time static placement, impurities in coal tar are separated by gravitational settling, because coal tar is more sticky, such a method is only
It is suitable for removing the dust that particle diameter is larger in coal tar, it is helpless to the dust of small particle.
At present, delayed coking processing raw material have decompression residuum, visbroken resids, ethylene residue, refinery waste residue and
The light middle coalite tar of quality better, density, viscosity high to density is big and the purification technique of coal tar containing dust then rarely has
Report and research.The complete of a kind of coal tar hydrogenating combinatorial delays coking as disclosed in Chinese patent literature CN102533332A evaporates
Point method of comprehensive utilization, including the pretreatment of coal tar, the efficiently separating of coal tar, heavy end delayed coking and fixed bed add
Four units such as hydrogen, final products are fine chemicals, gasoline, diesel oil, the pitch cokes such as phenol, naphthalene etc., and coal tar therein is entering
Also need to that through the preliminary purifications such as water removal, dedusting and desalination processing follow-up step can be carried out before row delayed coking so that whole
Individual cleaning system operation is more complicated, and liquid yield is low, adds the investment of device.
Utility model content
Therefore, the technical problems to be solved in the utility model is to overcome coal tar oil-cleaning system of the prior art to operate
Complicated, the defects of liquid yield is low and operating cost is high, so as to provide it is a kind of it is simple to operate, liquid yield is high low with operating cost
The oil-cleaning system of coal tar containing coal dust.
The utility model provides a kind of oil-cleaning system of coal tar containing coal dust, including：Preheating furnace, with the oil pipe of coal tar containing coal dust
Road is connected, for being preheated to the coal tar；Fractionating column, it is connected with the preheating furnace, for the preheating
Coal tar afterwards is fractionated；Heating furnace, the heating furnace are connected with the fractionating column bottom；Green coke unit, including at least two
Level coke drum in parallel, the coke drum are connected with the heating furnace；Knockout tower, the knockout tower respectively with the green coke unit
Connected with the top of the fractionating column.
Described coal tar oil-cleaning system, some herringbones gears tilted down are connected with the fractionating column internal side wall
Plate, the herringbone baffle plate in the vertical direction are staggered on relative two side in the fractionating column.
Described coal tar oil-cleaning system, the angular range formed between the herringbone baffle plate and horizontal plane are 30 ° -45 °.
Described coal tar oil-cleaning system, the herringbone baffle plate are provided with some through holes, the through hole a diameter of 25~
50mm。
Described coal tar oil-cleaning system, the knockout tower internal upper part are provided with some guide float valve trays, if bottom is provided with
The dry herringbone baffle plate tilted down.
Described coal tar oil-cleaning system, the angular range formed between the herringbone baffle plate and horizontal plane are 15 ° -35 °.
Described coal tar oil-cleaning system, in addition to feedstock oil surge tank, the feedstock oil surge tank are arranged on the coal
Between tar pipeline and the preheating furnace.
Described coal tar oil-cleaning system, the separation column are connected with knockout drum.
Technical solutions of the utility model, have the following advantages that：
(1) oil-cleaning system of coal tar containing coal dust described in the utility model, including：Preheating furnace, it is connected with coal tar oil-piping
It is logical, for being preheated to the coal tar；Fractionating column, it is connected with the preheating furnace, for the coal after the preheating
Tar is fractionated；Heating furnace, the heating furnace are connected with the fractionating column bottom；Green coke unit, including at least two-stage parallel connection
Coke drum, the coke drum is connected with the heating furnace；Knockout tower, the knockout tower respectively with the green coke unit and described
Connected at the top of fractionating column；In said system, described coal tar oil-cleaning system eliminates to be removed to the coal tar containing coal dust
The step of dirt, the flow of system is not only simplify, it is easy to operation, the investment of device is reduced, and because pyrolysis of coal is not produced
Coal tar carry out dedusting and ensure that and contain certain solid coal dust in coal tar so that coal tar is carried out in the coke drum
During green coke, coal tar can cooperate between coke powder, coal dust so that influence coke powder, coal dust and the mechanical admixture of coal tar oil quality
The pitch coke of high added value is converted into after cracking and condensation reaction are carried out in the coke drum, while causes liquid oil yield
1%~3% can be improved, the comprehensive utilization ratio of the coal tar containing coal dust is significantly improved, effectively raises economic benefit, again
Due to setting the fractionating column in the system, make part light component without the heating furnace and coke drum, it is whole so as to improve
The processing load of individual system, the investment cost of process units is reduced, also reduce the energy expenditure of device.
(2) oil-cleaning system of coal tar containing coal dust described in the utility model, by connecting in the fractionating column internal side wall
Some herringbone baffle plates tilted down are connected to, the herringbone baffle plate in the vertical direction is staggered inside the fractionating column,
So that the fractionating column does not block when being fractionated the coal tar of non-dedusting, fractionating effect is good.
(3) oil-cleaning system of coal tar containing coal dust described in the utility model, if by being provided with the knockout tower internal upper part
Dry guide float valve tray, bottom are provided with some herringbone baffle plates tilted down so that the knockout tower is more suitable for separation warp
Oil gas after green coke, separating effect are more excellent.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, describe below
In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the coal tar oil-cleaning system figure provided in the first embodiment of the present utility model.
Description of reference numerals：
1- preheating furnaces, 2- fractionating columns, 3- heating furnaces, 4- coke drums, 5- knockout towers, 6- herringbone baffle plates, 7- guide float-valve towers
Plate, 8- feedstock oil surge tanks, 9- knockout drums.
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is the utility model part of the embodiment, rather than whole embodiments.Based on the embodiment in the utility model, sheet
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instruction such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only
Described for the ease of description the utility model and simplifying, rather than instruction or imply signified device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or hint relative importance.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
In addition, as long as technical characteristic involved in the utility model different embodiments disclosed below is each other
Conflict can is not formed to be combined with each other.
The oil-cleaning system of coal tar containing coal dust described in present embodiment, as shown in figure 1, including：Preheating furnace 1, and containing coal dust
Coal tar oil-piping is connected, for being preheated to the coal tar；Fractionating column 2, be connected with the preheating furnace 1, for pair
Coal tar after the preheating is fractionated；Heating furnace 3, the heating furnace 3 are connected with the bottom of fractionating column 2；Green coke list
Member, including at least coke drum 4 of two-stage parallel connection, the coke drum 4 are connected 3 with the heating furnace；Knockout tower 5, the knockout tower 5
It is connected respectively with the green coke unit and the top of the fractionating column 2.In the present embodiment, pulverized coal pyrolysis device is come from described
The coal tar oil-piping and the preheating furnace 1 containing coal dust between be additionally provided with feedstock oil surge tank 8, the top of knockout tower 5 connects
It is connected to knockout drum 9.
In the above-described embodiment, the coal tar containing coal dust is extracted out from the bottom of feedstock oil surge tank 8 enters the preheating furnace 1
In directly preheated, subsequently into being fractionated in the fractionating column 2, the light fraction of part in separation removal coal tar,
The light fraction fractionated out enters in the knockout tower 5 via the top of fractionating column 2 to be separated, and removes part lightweight
Distillate after cut is entered in the heating furnace 3 by the bottom of the fractionating column 2 to be heated, and is then fed into the green coke list
Member, in the present embodiment, the green coke unit include the coke drum 4 of two-stage parallel connection, and the distillate is in the coke
Cracked in tower 4 and condensation reaction, the pitch coke of generation discharge the coke drum 4, the high temperature oil of generation by hydraulic decoking
Gas, which enters in the knockout tower 5, to be fractionated, and the tar of purification, the tar of the purification are isolated in the bottom of knockout tower 5
Component can be sent to hydrogenation device for treatment, produce high-grade coal base ordinary diesel oil and coal based naphtha, the top of knockout tower 5
The oil gas isolated can be sent into the knockout drum 9 and carry out further isolated rich gas and carbolic oil, and the rich gas can be sent
To LNG devices, LNG and LPG products are produced, the carbolic oil is sent to smart phenol device, extraction phenol, orthoresol, mixed phenol and right
The fine chemical products such as cresols, the net tar component of the bottom of towe of knockout tower 5 extraction are sent to hydrogenation plant production fuel oil.Upper
During stating, described coal tar oil-cleaning system eliminates the step of carrying out dedusting to the coal tar containing coal dust, not only simplify
The flow of system, the investment of device is reduced, and because not carrying out dedusting to coal tar caused by pyrolysis of coal ensure that coal tar
In contain certain solid coal dust so that when coal tar carries out green coke in the coke drum 4, coal tar can be with coke powder, coal
Cooperateed between powder so that coke powder, coal dust and the mechanical admixture for influenceing coal tar oil quality are cracked and contracted in the coke drum 4
The pitch coke of high added value is converted into after closing reaction, while allows liquid oil yield to improve 1%~3%, is significantly carried
The high comprehensive utilization ratio of the coal tar containing coal dust, effectively raises economic benefit, and due to setting the fractionation in the system
Tower 2, part light component is set, so as to improve the processing load of whole system, to be reduced without the heating furnace 3 and coke drum 4
The investment cost of process units, also reduce the energy expenditure of device.
Further, in the present embodiment, some herringbones tilted down are connected with the internal side wall of fractionating column 2
Baffle plate 6, the in the vertical direction of herringbone baffle plate 6 are staggered inside the fractionating column 2.The herringbone baffle plate 6 and level
The angular range formed between face is 30 ° -45 °, and the angular range formed in the present embodiment between selection and horizontal plane is 30 °
The herringbone baffle plate 6.By setting herringbone baffle plate 6 in the fractionating column 2, on the one hand can preferably in fractionating coal tar light group
Point, on the one hand avoid coal dust, coke powder and mechanical admixture in coal tar etc. from blocking the fractionating column 2, influence the fractionation of coal tar.
In the present embodiment, by being provided with some through holes on the herringbone baffle plate 6, a diameter of 25~50mm of the through hole,
Fractionating column 2 described in present embodiment selects the through-hole diameter more to contribute to coal tar for the 30mm herringbone baffle plate 6
Fractionation, avoids blocking.
Further, in the present embodiment, described coal tar oil-cleaning system, if the internal upper part of the knockout tower 5 is provided with
Dry guide float valve tray 7, bottom are provided with some herringbone baffle plates 6 tilted down, formed between the herringbone baffle plate 6 and horizontal plane
Angular range is 15 ° -35 °, and the knockout tower 5 selects the angle that is formed between horizontal plane as 15 ° of institute in the present embodiment
State herringbone baffle plate 6.By setting guide float valve tray 7 and herringbone baffle plate 6 in the knockout tower 5, more contribute to by life
Coal tar after burnt unit green coke is separated, further isolated net tar and absolute oil gas.
It is specific as follows present embodiments provide for the course of work of the coal tar oil-cleaning system：
The coal tar containing coal dust produced in pulverized coal pyrolysis technique is sent into the feedstock oil surge tank 8 and enters row buffering,
The coal tar containing coal dust can be coal particle size be less than 100 microns, coal dust content be 10% coal tar, containing after buffering
The coal tar of coal dust, which enters in preheating furnace 1, to be preheated, and the coal tar can be preheated to after 350 DEG C and is sent into the fractionating column
It is fractionated in 2, fractionation removes Light ends (light fraction) therein, and the light component is sent into institute by the top of fractionating column 2
State in knockout tower 5, remove in the fractionating column 2 and sent after being heated to 420 DEG C in the distillate feeding heating furnace 3 after Light ends
Enter green coke unit, the coke drum 5 in the green coke unit is cracked under 0.15MPa (G) pressure and condensation reaction, raw
Into pitch coke the coke drum 5 is discharged by hydraulic decoking, the high-temperature oil gas of generation enters the knockout tower 5 and carries out gas-liquid point
From obtaining rich gas, carbolic oil mixture and net tar, the total liquid recovery of the net tar and carbolic oil is 80.5%, is higher by
Conventional purification technique prepare net tar yield 1-3%, net tar component be sent to hydrogenation plant production fuel oil, the rich gas and
The mixture of carbolic oil, which can be sent in knockout drum 9, carries out isolated rich gas and carbolic oil, and the rich gas is sent to LNG devices,
LNG and LPG products are produced, the carbolic oil is sent to smart phenol device, and extraction phenol, orthoresol, mixed phenol and M-and P-cresols etc. are fine
Chemical products.
Obviously, above-described embodiment is only intended to clearly illustrate example, and is not the restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among the protection domain that variation is created still in the utility model.
Claims (8)
- A kind of 1. cleaning system of coal tar containing coal dust, it is characterised in that including：Preheating furnace (1), it is connected with the oil-piping of coal tar containing coal dust, for being preheated to the coal tar；Fractionating column (2), it is connected with the preheating furnace (1), for the coal tar fractional distillation after the preheating；Heating furnace (3), the heating furnace (3) are connected with the fractionating column (2) bottom；Green coke unit, including at least coke drum (4) of two-stage parallel connection, the coke drum (4) are connected with the heating furnace (3)；Knockout tower (5), the knockout tower (5) are connected with the top of the green coke unit and the fractionating column (2) respectively.
- A kind of 2. cleaning system of coal tar containing coal dust according to claim 1, it is characterised in that the fractionating column (2) Some herringbone baffle plates (6) tilted down are connected with internal side wall, herringbone baffle plate (6) in the vertical direction is staggered It is internal in the fractionating column (2).
- A kind of 3. cleaning system of coal tar containing coal dust according to claim 2, it is characterised in that the herringbone baffle plate (6) angular range formed between horizontal plane is 30 ° -45 °.
- A kind of 4. cleaning system of coal tar containing coal dust according to Claims 2 or 3, it is characterised in that the herringbone gear Plate (6) is provided with some through holes, a diameter of 25~50mm of the through hole.
- A kind of 5. cleaning system of coal tar containing coal dust according to claim 1, it is characterised in that the knockout tower (5) Internal upper part is provided with some guide float valve trays (7), and bottom is provided with some herringbone baffle plates (6) tilted down.
- A kind of 6. cleaning system of coal tar containing coal dust according to claim 5, it is characterised in that the herringbone baffle plate (6) angular range formed between horizontal plane is 15 ° -35 °.
- 7. the cleaning system of a kind of coal tar containing coal dust according to claim 1, it is characterised in that also delay including feedstock oil Tank (8) is rushed, the feedstock oil surge tank (8) is arranged between the coal tar oil-piping and the preheating furnace (1).
- A kind of 8. cleaning system of coal tar containing coal dust according to claim 1, it is characterised in that the knockout tower (5) Top is connected with knockout drum (9).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721074354.6U CN207159148U (en) | 2017-08-25 | 2017-08-25 | A kind of cleaning system of the coal tar containing coal dust |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721074354.6U CN207159148U (en) | 2017-08-25 | 2017-08-25 | A kind of cleaning system of the coal tar containing coal dust |
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| CN207159148U true CN207159148U (en) | 2018-03-30 |
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| CN201721074354.6U Active CN207159148U (en) | 2017-08-25 | 2017-08-25 | A kind of cleaning system of the coal tar containing coal dust |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108441250A (en) * | 2018-05-18 | 2018-08-24 | 上海优华系统集成技术股份有限公司 | A kind of processing system and its processing method of phenol tar |
| CN108441250B (en) * | 2018-05-18 | 2024-05-28 | 上海优华系统集成技术股份有限公司 | Phenol tar treatment system and treatment method thereof |
-
2017
- 2017-08-25 CN CN201721074354.6U patent/CN207159148U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108441250A (en) * | 2018-05-18 | 2018-08-24 | 上海优华系统集成技术股份有限公司 | A kind of processing system and its processing method of phenol tar |
| CN108441250B (en) * | 2018-05-18 | 2024-05-28 | 上海优华系统集成技术股份有限公司 | Phenol tar treatment system and treatment method thereof |
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