CN109575972A - Distillation equipment is used in a kind of production and processing of coal tar - Google Patents
Distillation equipment is used in a kind of production and processing of coal tar Download PDFInfo
- Publication number
- CN109575972A CN109575972A CN201811576507.6A CN201811576507A CN109575972A CN 109575972 A CN109575972 A CN 109575972A CN 201811576507 A CN201811576507 A CN 201811576507A CN 109575972 A CN109575972 A CN 109575972A
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- China
- Prior art keywords
- shell
- inner cavity
- coal tar
- fixedly connected
- hose
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10C—WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
- C10C1/00—Working-up tar
- C10C1/04—Working-up tar by distillation
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Coke Industry (AREA)
Abstract
The invention discloses a kind of coal tar production and processing distillation equipments, are related to coal tar production technical field.Coal tar production and processing distillation equipment, including shell, the bottom of the inner cavity of the shell is fixedly connected with heating device, collection funnel is fixedly connected at the top of the shell, it is provided at the top of the collection funnel and promotes channel, the top for promoting channel is communicated with material-gathering device by hose, is provided with control cabinet on the right side of the material-gathering device, the surface of the collection funnel is arranged restraining position ring block, and the two sides of the stop collar bottom pass through to be fixedly connected at the top of telescopic rod and shell.Coal tar production and processing distillation equipment, pass through the improvement of material-gathering device, interior bucket, part flow arrangement and cooling device, improve the working efficiency of distillation equipment, and the waste of raw material is avoided in use, it avoids due to liquid reflux caused by liquefying too early, the utilization rate for increasing raw material improves work efficiency while reducing cost.
Description
Technical field
The present invention relates to coal tar production technical field, distillation equipment is used in specially a kind of coal tar production and processing.
Background technique
The black or dark brown viscous liquid with pungent odour generated when coal destructive distillation, abbreviation tar, coal tar
Oil can be divided into coalite tar, medium temperature coal tar and high temperature coal-tar by pyrolysis temperature, the coal tar obtained in coke production
Belong to high temperature coal-tar, it be condensed in raw gas cooling procedure, one of the coke oven gas purification product separated, coal tar
Generally as the raw material of processing and refining to produce various chemical products, can also directly utilize, coal tar in the process of production and processing,
It needs to carry out distillation procedure to it using distillation equipment.
Traditional distillation equipment, working efficiency is not high and is easy to appear the waste of raw material in use, be easy to appear due to
Liquid reflux caused by liquefaction too early, reduces the utilization rate of raw material, reduces working efficiency while increasing cost, to making
The use of user is made troubles.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of coal tar production and processing distillation equipment, steaming is solved
It is not high and be easy to appear the waste of raw material in use to evaporate equipment work efficiency, is easy to appear due to liquid caused by liquefying too early
The problem of body flows back.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs: a kind of coal tar production and processing steaming
Equipment, including shell are evaporated, the bottom of the inner cavity of the shell is fixedly connected with heating device, is fixedly connected at the top of the shell
There is collection funnel, be provided at the top of the collection funnel and promote channel, the top for promoting channel is communicated with by hose
Material-gathering device is provided with control cabinet on the right side of the material-gathering device, and the surface of the collection funnel is arranged restraining position ring block, the limit
The two sides of position ring bottom pass through to be fixedly connected at the top of telescopic rod and shell, and pan feeding electrically-controlled valve is communicated on the left of the shell
Door, the inner cavity of the shell are provided with interior bucket, and part flow arrangement is provided on the promotion channel, and the part flow arrangement is soft by side
Pipe is connected to material-gathering device, is provided with cooling device on the hose, the control cabinet respectively with heating device, telescopic rod and enter
Expect that electric control valve is electrically connected.
The material-gathering device includes gathering materials shell, and the right end of the hose and side hose is connected to the shell that gathers materials, described
The gather materials inner cavity of shell is provided with kickboard, and the two sides of the kickboard are provided through guide rod, and the both ends of the guide rod are equal
It is fixedly connected with the inner wall for the shell that gathers materials, graduated scale is fixedly connected at the top of the kickboard, the top of the graduated scale is run through
Gather materials shell top and extend to the top of the shell that gathers materials, the bottom of the shell that gathers materials is provided through discharging electrically-controlled valve
Door, the control cabinet and discharging electric control valve are electrically connected.
The interior bucket includes staving, and the right end of the electric control valve is disposed through on staving, and the inner cavity of the staving is set
It is equipped with the partition that blocks water, the inner cavity of the staving and bottom for being located at the partition that blocks water is provided with hybrid electric motor, the hybrid electric motor
Output shaft is fixedly connected with rotation axis by shaft coupling, and the top of the rotation axis, which is run through, to block water partition and extend to the partition that blocks water
Top, the surface of the rotation axis and be located to block water and be provided with mixed plate at the top of partition, the quantity of the mixed plate is two
It is a, and mixed pole is provided between two mixed plates, the control cabinet and hybrid electric motor are electrically connected.
The part flow arrangement includes shunting shell, the surface for shunting casing and being set to promotion channel, outside the shunting
It is provided with heat riser on the left of shell inner cavity, the inner cavity that the right side for promoting channel and being located at shunts shell is communicated with side pipe,
The inner cavity for promoting channel and it is located at the top of side pipe and is provided with drainage web plate, the level height on the left of the drainage web plate is high
Level height on the right side of drainage web plate, the left end of the side hose are connected to the bottom shunted on the right side of shell, the control cabinet
It is electrically connected with heat riser.
The cooling device includes cooling shell, and the cooling casing is set to the surface of hose, the cooling shell
Right side is fixedly connected sequentially from top to bottom water pump and water tank, is provided with cooling liquid in the water tank, the surface of the hose and
It is surrounded with curved tube positioned at the inner cavity of cooling shell, the bottom end of the curved tube at the top of water inlet pipe and water tank cavity by connecting
Logical, the water inlet of the water pump is connected to by coupling tube with the bottom of water tank cavity, and the water outlet of the water pump passes through outlet pipe
It is connected to the top of curved tube, the control cabinet and water pump are electrically connected.
Preferably, the inner cavity of the shell and be located at interior bucket at the top of be provided with screen pack.
Preferably, metal ball is provided on the left of the kickboard, and metal ball is contacted with the inner wall for the shell that gathers materials.
Preferably, mounting plate is provided on the right side of the shell that gathers materials.
Preferably, the pointer being equipped with graduated scale is provided on the shell that gathers materials.
Preferably, the inner cavity of the staving is fixedly connected with limitation ring, and limitation ring is sheathed on the surface of rotation axis.
Preferably, the mixed plate is horizontal by 45 degree of angles.
(3) beneficial effect
The present invention provides a kind of coal tar production and processing distillation equipments.Have following the utility model has the advantages that the coal tar is raw
It produces processing distillation equipment and distillation equipment is improved by the improvement of material-gathering device, interior bucket, part flow arrangement and cooling device
Working efficiency, and the waste of raw material is avoided in use, it avoids due to liquid reflux caused by liquefying too early, increases
The utilization rate of raw material improves work efficiency while reducing cost, the use for the person of being convenient to use.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the structural schematic diagram of material-gathering device of the present invention；
Fig. 3 is the structural schematic diagram of interior bucket of the present invention；
Fig. 4 is the structural schematic diagram of part flow arrangement of the present invention；
Fig. 5 is the structural schematic diagram of cooling device of the present invention.
In figure: 1, shell；2, heating device；3, collection funnel；4, channel is promoted；5, hose；6, material-gathering device；601, it floats
Plate；602, discharge electric control valve；603, gather materials shell；604, metal ball；605, pointer；606, graduated scale；607, mounting plate；
608, guide rod；7, control cabinet；8, stop collar；9, telescopic rod；10, pan feeding electric control valve；11, interior bucket；111, limitation ring；112,
Staving；113, hybrid electric motor；114, mixed plate；115, mixed pole；116, rotation axis；117, block water partition；12, screen pack；
13, part flow arrangement；131, web plate is drained；132, heat riser；133, shell is shunted；134, side pipe；14, side hose；15, cool down
Device；151, cool down shell；152, curved tube；153, outlet pipe；154, water pump；155, coupling tube；156, water tank；157, enter water
Pipe.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-5 is please referred to, the present invention provides a kind of technical solution: a kind of coal tar production and processing distillation equipment, including
Shell 1, the inner cavity of shell 1 and the top for being located at interior bucket 11 are provided with screen pack 12, and the bottom of the inner cavity of shell 1 is fixedly connected
There is heating device 2, the top of shell 1 is fixedly connected with collection funnel 3, and the top of collection funnel 3, which is provided with, promotes channel 4, mentions
The top for rising channel 4 is communicated with material-gathering device 6 by hose 5, and the right side of material-gathering device 6 is provided with control cabinet 7, collection funnel 3
Surface be arranged restraining position ring block 8, the two sides of 8 bottom of stop collar pass through telescopic rod 9 and are fixedly connected with the top of shell 1, shell 1
Left side be communicated with pan feeding electric control valve 10, the inner cavity of shell 1 is provided with interior bucket 11, is promoted and is provided with part flow arrangement on channel 4
13, part flow arrangement 13 is connected to by side hose 14 with material-gathering device 6, and cooling device 15 is provided on hose 5, and control cabinet 7 is distinguished
It is electrically connected with heating device 2, telescopic rod 9 and pan feeding electric control valve 10.
Material-gathering device 6 includes the shell 603 that gathers materials, and is provided with the pointer being equipped with graduated scale 606 on the shell 603 that gathers materials
605, the right end of hose 5 and side hose 14 is connected to the shell 603 that gathers materials, and the right side for the shell 603 that gathers materials is provided with mounting plate
607, the inner cavity for the shell 603 that gathers materials is provided with kickboard 601, and the left side of kickboard 601 is provided with metal ball 604, and metal ball 604 with
Gather materials the inner wall contact of shell 603, the two sides of kickboard 601 are provided through guide rod 608, the both ends of guide rod 608 with
The inner wall of shell 603 of gathering materials is fixedly connected, and the top of kickboard 601 is fixedly connected with graduated scale 606, and the top of graduated scale 606 is passed through
It wears the top for the shell 603 that gathers materials and extends to the top for the shell 603 that gathers materials, the bottom for the shell 603 that gathers materials is provided through discharging
Electric control valve 602, control cabinet 7 and discharging electric control valve 602 are electrically connected.
Interior bucket 11 includes staving 112, and the inner cavity of staving 112 is fixedly connected with limitation ring 111, and limitation ring 111 is sheathed on
The surface of rotation axis 116, the right end of electric control valve 10 are disposed through on staving 112, the inner cavity of staving 112 be provided with block water every
Plate 117, the inner cavity of staving 112 and the bottom for being located at the partition 117 that blocks water are provided with hybrid electric motor 113, the output of hybrid electric motor 113
Axis is fixedly connected with rotation axis 116 by shaft coupling, the top of rotation axis 116 through the partition 117 and extending to of blocking water block water every
The top of plate 117, the surface of rotation axis 116 and the top for being located at the partition 117 that blocks water are provided with mixed plate 114, mixed plate 114
Quantity is two, and mixed pole 115 is provided between two mixed plates 114, and mixed plate 114 is pressed from both sides horizontal by 45 degree
Angle, control cabinet 7 and hybrid electric motor 113 are electrically connected.
Part flow arrangement 13 includes shunting shell 133, shunts shell 133 and is sheathed on the surface for promoting channel 4, shunts shell
It is provided with heat riser 132 on the left of 133 inner cavities, promotes the right side in channel 4 and the inner cavity for being located at shunting shell 133 is communicated with side
Pipe 134 promotes the inner cavity in channel 4 and the top of side pipe 134 is provided with drainage web plate 131, the water in 131 left side of drainage web plate
Flat height is higher than the level height on 131 right side of drainage web plate, and the left end of side hose 14 and the bottom for shunting 133 right side of shell connect
Logical, control cabinet 7 and heat riser 132 are electrically connected.
Cooling device 15 includes cooling shell 151, and cooling shell 151 is sheathed on the surface of hose 5, cooling shell 151
Right side is fixedly connected sequentially from top to bottom water pump 154 and water tank 156, and cooling liquid, the surface of hose 5 are provided in water tank 156
And the inner cavity for being located at cooling shell 151 is surrounded with curved tube 152, the bottom end of curved tube 152 passes through water inlet pipe 157 and water tank 156
The top of inner cavity is connected to, and the water inlet of water pump 154 is connected to by coupling tube 155 with the bottom of 156 inner cavity of water tank, water pump 154
Water outlet is connected to by outlet pipe 153 with the top of curved tube 152, and control cabinet 7 and water pump 154 are electrically connected.
When work, material-gathering device 6 is fixed on by corresponding position by mounting plate 607, raw material is passed through into pan feeding electric control valve
10 are added in interior bucket 11, control heating device 2 by control cabinet 7, so that can be flashed to after lease making crosses heating in raw material
It passes sequentially through collection funnel 3, promotion channel 4 and hose 5 to enter in material-gathering device 6, user can open by control cabinet 7
Discharge electric control valve 602, so that the product outflow after distillation in material-gathering device 6.
With the increase of liquid in the shell 603 that gathers materials, make graduated scale 606 relative to pointer under the action of kickboard 601
605 move up, and user can judge the shell 603 that currently gathers materials relative to the position of pointer 605 by observation graduated scale 606
Interior liquid case.
User can control hybrid electric motor 113 by control cabinet 7 and work, while in rotation axis 116,115 and of mixed pole
Hybrid manipulation is carried out under the action of mixed plate 114, is made the ingredient of raw material and temperature more uniform with this, is facilitated distillation procedure.
User can control heat riser 132 by control cabinet 7 and work, thus to the production promoted in channel 4 is promoted to
Product further heat, thus avoid due to temperature reduce it is too fast caused by liquefy reflux, if product promoted channel 4 in liquid
Change, then the product after liquefying can pass sequentially through side pipe 134 under the action of draining web plate 131 and side hose 14 flows into the dress that gathers materials
Set in 6 (since liquid in this case is less, will not cause to damage even without cooling device 5 to other component
It is bad).
User controls water pump 154 by control cabinet 7 and works, so that the cooling liquid in water tank 156 is in curved tube 152
It circulates, most of heat is taken away with this, to reach carry out cooling effect.
In conclusion coal tar production and processing distillation equipment, passes through material-gathering device 6, interior bucket 11,13 and of part flow arrangement
The improvement of cooling device 15, improves the working efficiency of distillation equipment, and avoids the waste of raw material in use, avoid by
The liquid reflux caused by too early liquefaction, increases the utilization rate of raw material, improves work efficiency while reducing cost, side
User use.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (7)
1. a kind of coal tar production and processing distillation equipment, including shell (1), the bottom of the inner cavity of the shell (1) is fixed to be connected
It is connected to heating device (2), is fixedly connected with collection funnel (3) at the top of the shell (1), the top of the collection funnel (3)
It is provided with and promotes channel (4), the top for promoting channel (4) is communicated with material-gathering device (6) by hose (5), described to gather materials
Control cabinet (7) are provided on the right side of device (6), it is characterised in that: the surface of the collection funnel (3) is arranged restraining position ring block (8),
The two sides of stop collar (8) bottom pass through to be fixedly connected at the top of telescopic rod (9) and shell (1), a left side for the shell (1)
Side is communicated with pan feeding electric control valve (10), and the inner cavity of the shell (1) is provided with interior bucket (11), is set on the promotion channel (4)
It is equipped with part flow arrangement (13), the part flow arrangement (13) is connected to by side hose (14) with material-gathering device (6), the hose (5)
On be provided with cooling device (15), the control cabinet (7) respectively with heating device (2), telescopic rod (9) and pan feeding electric control valve
(10) it is electrically connected；
The material-gathering device (6) include gather materials shell (603), the right end of the hose (5) and side hose (14) with gather materials outside
Shell (603) connection, the inner cavity of the shell that gathers materials (603) are provided with kickboard (601), and the two sides of the kickboard (601) are run through
It is provided with guide rod (608), the both ends of the guide rod (608) are fixedly connected with the inner wall of the shell that gathers materials (603), described floating
It is fixedly connected at the top of plate (601) graduated scale (606), the top for shell (603) that gather materials is run through at the top of the graduated scale (606)
The bottom at portion and the top for extending to the shell that gathers materials (603), the shell that gathers materials (603) is provided through discharging electric control valve
(602), the control cabinet (7) and discharging electric control valve (602) are electrically connected；
The interior bucket (11) includes staving (112), and the right end of the electric control valve (10) is disposed through on staving (112), institute
The inner cavity for stating staving (112) is provided with the partition that blocks water (117), and the inner cavity of the staving (112) and being located at blocks water partition (117)
Bottom is provided with hybrid electric motor (113), and the output shaft of the hybrid electric motor (113) is fixedly connected with rotation axis by shaft coupling
(116), the top of the rotation axis (116), which is run through, blocks water partition (117) and extends to the tops of the partition that blocks water (117), described
The surface of rotation axis (116) and it is located to block water and is provided with mixed plate (114) at the top of partition (117), the mixed plate (114)
Quantity is two, and is provided with mixed pole (115) between two mixed plates (114), the control cabinet (7) and hybrid electric motor
(113) it is electrically connected；
The part flow arrangement (13) includes shunting shell (133), and shunt shell (133) are sheathed on the table for promoting channel (4)
Face is provided with heat riser (132) on the left of shunting shell (133) inner cavity, the right side for promoting channel (4) and is located at
The inner cavity for shunting shell (133) is communicated with side pipe (134), the inner cavity for promoting channel (4) and the top for being located at side pipe (134)
It is provided with drainage web plate (131), the level height on the left of drainage web plate (131) is higher than the water on the right side of drainage web plate (131)
Flat height, the left end of the side hose (14) are connected to the bottom shunted on the right side of shell (133), the control cabinet (7) and heating
Device (132) is electrically connected；
The cooling device (15) includes cooling shell (151), and cooling shell (151) is sheathed on the surface of hose (5), institute
The right side for stating cooling shell (151) is fixedly connected sequentially has water pump (154) and water tank (156) from top to bottom, the water tank (156)
Inside it is provided with cooling liquid, the surface of the hose (5) and the inner cavity for being located at cooling shell (151) is surrounded with curved tube (152),
The bottom end of the curved tube (152) is connected to by water inlet pipe (157) with the top of water tank (156) inner cavity, and water pump (154) enter
The mouth of a river is connected to by coupling tube (155) with the bottom of water tank (156) inner cavity, and the water outlet of the water pump (154) passes through outlet pipe
(153) it is connected to the top of curved tube (152), the control cabinet (7) and water pump (154) are electrically connected.
2. a kind of coal tar production and processing distillation equipment according to claim 1, it is characterised in that: the shell (1)
Inner cavity and be located at interior bucket (11) at the top of be provided with screen pack (12).
3. a kind of coal tar production and processing distillation equipment according to claim 1, it is characterised in that: the kickboard
(601) it is provided on the left of metal ball (604), and metal ball (604) is contacted with the inner wall of the shell that gathers materials (603).
4. a kind of coal tar production and processing distillation equipment according to claim 1, it is characterised in that: the shell that gathers materials
(603) mounting plate (607) are provided on the right side of.
5. a kind of coal tar production and processing distillation equipment according to claim 1, it is characterised in that: the shell that gathers materials
(603) pointer (605) being equipped with graduated scale (606) is provided on.
6. a kind of coal tar production and processing distillation equipment according to claim 1, it is characterised in that: the staving
(112) inner cavity is fixedly connected with limitation ring (111), and limitation ring (111) is sheathed on the surface of rotation axis (116).
7. a kind of coal tar production and processing distillation equipment according to claim 1, it is characterised in that: the mixed plate
(114) horizontal by 45 degree of angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811576507.6A CN109575972A (en) | 2018-12-22 | 2018-12-22 | Distillation equipment is used in a kind of production and processing of coal tar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811576507.6A CN109575972A (en) | 2018-12-22 | 2018-12-22 | Distillation equipment is used in a kind of production and processing of coal tar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109575972A true CN109575972A (en) | 2019-04-05 |
Family
ID=65931325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811576507.6A Pending CN109575972A (en) | 2018-12-22 | 2018-12-22 | Distillation equipment is used in a kind of production and processing of coal tar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109575972A (en) |
Citations (7)
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| US20050224417A1 (en) * | 2004-04-13 | 2005-10-13 | Eastman Kodak Company | Use of derivatized nanoparticles to minimize growth of micro-organisms in hot filled drinks |
| CN202157055U (en) * | 2011-07-18 | 2012-03-07 | 邢台旭阳煤化工有限公司 | Tar deep-processing distillation device |
| CN203965364U (en) * | 2014-04-29 | 2014-11-26 | 辽宁万泓激光科技股份有限公司 | Coal tar analytical instrument |
| CN106947518A (en) * | 2017-05-07 | 2017-07-14 | 西南石油大学 | A kind of circuit simulated experiment crude dehydrating plant and method |
| CN206715353U (en) * | 2017-04-07 | 2017-12-08 | 刘玲明 | A kind of efficient distillation equipment |
| CN207160180U (en) * | 2017-08-11 | 2018-03-30 | 宁夏水投科技有限公司 | A kind of drainage equipment for city |
| CN108375549A (en) * | 2017-12-28 | 2018-08-07 | 中国石油大学(华东) | A kind of extraction device and method being automatically separated petroleum component |
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2018
- 2018-12-22 CN CN201811576507.6A patent/CN109575972A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050224417A1 (en) * | 2004-04-13 | 2005-10-13 | Eastman Kodak Company | Use of derivatized nanoparticles to minimize growth of micro-organisms in hot filled drinks |
| CN202157055U (en) * | 2011-07-18 | 2012-03-07 | 邢台旭阳煤化工有限公司 | Tar deep-processing distillation device |
| CN203965364U (en) * | 2014-04-29 | 2014-11-26 | 辽宁万泓激光科技股份有限公司 | Coal tar analytical instrument |
| CN206715353U (en) * | 2017-04-07 | 2017-12-08 | 刘玲明 | A kind of efficient distillation equipment |
| CN106947518A (en) * | 2017-05-07 | 2017-07-14 | 西南石油大学 | A kind of circuit simulated experiment crude dehydrating plant and method |
| CN207160180U (en) * | 2017-08-11 | 2018-03-30 | 宁夏水投科技有限公司 | A kind of drainage equipment for city |
| CN108375549A (en) * | 2017-12-28 | 2018-08-07 | 中国石油大学(华东) | A kind of extraction device and method being automatically separated petroleum component |
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Application publication date: 20190405 |
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