CN107314644A - A kind of coal slime drier - Google Patents
A kind of coal slime drier Download PDFInfo
- Publication number
- CN107314644A CN107314644A CN201710681349.XA CN201710681349A CN107314644A CN 107314644 A CN107314644 A CN 107314644A CN 201710681349 A CN201710681349 A CN 201710681349A CN 107314644 A CN107314644 A CN 107314644A
- Authority
- CN
- China
- Prior art keywords
- coal slime
- accommodating chamber
- steam
- coal
- steam pipeline
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
- F26B11/02—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles
- F26B11/04—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis
- F26B11/0445—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis having conductive heating arrangements, e.g. heated drum wall
- F26B11/045—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis having conductive heating arrangements, e.g. heated drum wall using heated internal elements, e.g. which move through or convey the materials to be dried
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
- F26B11/02—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles
- F26B11/04—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis
- F26B11/0463—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis having internal elements, e.g. which are being moved or rotated by means other than the rotating drum wall
- F26B11/0477—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis having internal elements, e.g. which are being moved or rotated by means other than the rotating drum wall for mixing, stirring or conveying the materials to be dried, e.g. mounted to the wall, rotating with the drum
- F26B11/0486—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis having internal elements, e.g. which are being moved or rotated by means other than the rotating drum wall for mixing, stirring or conveying the materials to be dried, e.g. mounted to the wall, rotating with the drum the elements being held stationary, e.g. internal scraper blades
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/10—Heating arrangements using tubes or passages containing heated fluids, e.g. acting as radiative elements; Closed-loop systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/005—Treatment of dryer exhaust gases
- F26B25/007—Dust filtering; Exhaust dust filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/04—Agitating, stirring, or scraping devices
Abstract
The embodiment of the invention discloses a kind of coal slime drier, it is related to coal electro-technical field, for solving the problem of existing coal slime drier can cause environmental pollution.The coal slime drier of the present invention includes:Coal slime accommodating chamber, steam pipeline;Coal slime accommodating chamber is used to accommodate coal slime, and coal slime accommodating chamber includes coal slurry inlet and coal slime is exported, and coal slurry inlet is being vertically higher than coal slime outlet;Steam pipeline is used to convey the vapor by steam turbine, and steam pipeline is arranged at the inside of coal slime accommodating chamber, for being heated for the coal slime in coal slime accommodating chamber, to cause the humidity of the coal slime in coal slime accommodating chamber to reduce.
Description
Technical field
The present invention relates to coal electro-technical field, and in particular to a kind of coal slime drier.
Background technology
Existing thermal power generation relies primarily on steam turbine power generation, and the general process of steam turbine power generation is:Produced by boiler
Superheated steam enter steam turbine in expansion work, make blade rotate and drive electrical power generators, the waste vapour after acting through condenser,
Water circulating pump, condensate pump, send boiler recycling to hot-water heating system etc. back to, and the fuel for heating of being fed water in thermal power plant is main
It is coal slime.Coal slime enters before stove burning, it is necessary to which coal slime is stacked into field from coal slime by coal slime conveying device is transported to coal yard, Jin Eryong
Coal fired power generation in coal yard.Because the humidity that coal slime stacks coal slime in field is generally larger, coal fired generation process is influenceed, therefore need
To be dried to entering the coal slime before coal yard, to reduce the humidity of coal slime, referring to Fig. 1, be existing coal slime transport system,
Dotted line represents the conveying circuit of coal slime.
Existing coal slime drier produces high-temperature flue gas typically by burning coal or biological substance, and utilizes generation
High-temperature flue gas is thermally dried to coal slime.
But, there is volume of smoke, sulfur dioxide and nitrogen in the high-temperature flue gas that prior art is used in coal slime drying process
Oxide etc., can cause environmental pollution.
The content of the invention
The embodiments of the invention provide a kind of coal slime drier, for solving existing coal slime drier environment can be caused dirty
The problem of dye.
To reach above-mentioned purpose, the embodiments of the invention provide a kind of coal slime drier, including:Coal slime accommodating chamber, steam
Delivery pipe;
The coal slime accommodating chamber is used to accommodate coal slime, and the coal slime accommodating chamber includes coal slurry inlet and coal slime is exported, described
Coal slurry inlet is being vertically higher than the coal slime outlet;
The steam pipeline is used to convey the vapor by steam turbine, and the steam pipeline is arranged at the coal slime
The inside of accommodating chamber, for being heated for the coal slime in the coal slime accommodating chamber, to cause the coal slime in the coal slime accommodating chamber
Humidity is reduced.
Optionally, the coal slime drier also includes slew gear, and the slew gear is connected with the coal slime accommodating chamber,
For driving the coal slime accommodating chamber to rotate.
Optionally, the coal slime drier also includes steam trap connection, and the steam trap connection goes out with the steam pipeline
Mouth is connected, for by outside the condensed water elimination in the steam pipeline to the steam pipeline.
Optionally, the steam pipeline includes internal duct, entrance swivel joint and outlet swivel joint;
The internal duct is fixed together with the coal slime accommodating chamber, with the coal slime accommodating chamber synchronous axial system;
The entrance of the internal duct accesses the vapor by the steam turbine by the entrance swivel joint;
The outlet of the internal duct is connected by the outlet swivel joint with the steam trap connection.
Optionally, the internal duct is steam pipe coil.
Optionally, the outer surface of the steam pipe coil is provided with radiating fin.
Optionally, the coal slime drier also includes temperature-adjustment pressure-adjustment device, and the temperature-adjustment pressure-adjustment device and the steam are defeated
The air inlet of pipe is sent to be connected, for the vapor by the steam turbine to be adjusted into saturated vapor, and by the saturation after regulation
Steam is conveyed into the steam pipeline.
Optionally, chain is provided with the inwall of the coal slime accommodating chamber, for sticking in the coal slime accommodating chamber
Coal slime on wall is cleaned.
Optionally, the wall contacts of the steam pipeline are provided with shaking device, for preventing coal slime from adhering to
The outer wall of the steam pipeline.
Optionally, the coal slime accommodating chamber is additionally provided with exhaust outlet, and the exhaust ports are provided with induced-draught fan and screen pack,
Air in the coal slime accommodating chamber passes through the screen pack in the presence of the induced-draught fan, is accommodated with reducing from the coal slime
Dust content in the air discharged in chamber.
As can be seen from the above technical solutions, the embodiment of the present invention has advantages below:
The present invention will be collected into drying device by the vapor of steam turbine, using being collected into the drying device
The vapor is heated to the coal slime in the drying device, to cause the humidity of the coal slime in the drying device to drop
It is low, it is the vapor by steam turbine by the present invention coal slime is dried used gas, compared to the prior art, can
To reduce environmental pollution, the energy is saved.
Brief description of the drawings
Fig. 1 is existing one schematic diagram of coal slime transport system;
Fig. 2 is coal slime drier one embodiment schematic diagram of the present invention;
Fig. 3 is another embodiment schematic diagram of coal slime drier of the present invention.
Embodiment
The embodiments of the invention provide a kind of coal slime drier, for reducing environmental pollution, the energy is saved.
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the embodiment of the present invention
Accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained under the premise of creative work is not made, should all belong to the model that the present invention is protected
Enclose.
Term " first ", " second ", " the 3rd " in description and claims of this specification and above-mentioned accompanying drawing, "
The (if present)s such as four " are for distinguishing similar object, without for describing specific order or precedence.It should manage
The data that solution is so used can be exchanged in the appropriate case, so that the embodiments described herein can be with except illustrating herein
Or the order beyond the content of description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that
Covering is non-exclusive to be included, for example, containing process, method, system, product or the equipment of series of steps or unit need not limit
In those steps or unit for clearly listing, but may include not list clearly or for these processes, method, production
Product or the intrinsic other steps of equipment or unit.
The method and system that the present invention is provided is mainly used in thermal power generation system, specifically for turbine generating system.For
It is easy to the understanding of those skilled in the art, the present invention passes through the specific reality for the technical scheme that following examples are provided the present invention
Existing process is illustrated.
Coal slime drier of the present invention can include coal slime accommodating chamber 1, steam pipeline 2;The coal slime accommodating chamber 1 is used to hold
Receive coal slime, the coal slime accommodating chamber 1 includes coal slurry inlet 11 and coal slime outlet 12, and the coal slurry inlet 11 is being vertically higher than
The coal slime outlet 12, such as, coal slime accommodating chamber 1 can be with horizontal direction slightly into angle of inclination, and coal slime adds from higher one end
Enter, discharged from relatively low one end, the coal slime of discharge can fall into coal slime transmitting device, transmit to coal slime drier or coal yard;Institute
State steam pipeline 2 be used for convey by the vapor of steam turbine, the steam pipeline 2 is arranged at the coal slime accommodating chamber 1
Inside, for in the coal slime accommodating chamber 1 coal slime heating, to cause the humidity of the coal slime in the coal slime accommodating chamber 1
Reduction.Referring to Fig. 2, being a kind of possible structural perspective of coal slime drier.
Because the vapor by steam turbine has higher temperature, steam pipeline of the invention, which is utilized, passes through steam turbine
The heat of vapor the coal slime in the coal slime accommodating chamber is heated, to cause the coal slime in the coal slime accommodating chamber
Humidity is reduced, by the present invention coal slime is dried used gas for by the vapor of steam turbine, and prior art
Compare, it is possible to reduce environmental pollution.Done in addition, entering to expand in steam turbine with the superheated steam produced by boiler in the prior art
Directly cool after work(through condenser different, the present invention will be collected into steam pipeline by the vapor of steam turbine, is utilized
The vapor being collected into steam pipeline is heated to the coal slime in coal slime accommodating chamber, is taken full advantage of the water after acting and is steamed
The heat of gas, has saved the energy.
It is preferred that, coal slime drier can also include slew gear, the slew gear and the phase of coal slime accommodating chamber 1
Even, for driving the coal slime accommodating chamber 1 to rotate, to cause coal slime to be tossed in coal slime accommodating chamber 1, what increase was heated
Surface area, improves the efficiency of heating surface.
It is preferred that, the alternatively possible structural perspective of the coal slime drier shown in Fig. 3 is referred to, the coal slime is dried
Machine can also include steam trap connection 3, and the steam trap connection 3 be connected with the outlet of the steam pipeline 2, for by the steam
Condensed water elimination in delivery pipe 2 is to outside the steam pipeline 2.In actual use, steam trap connection 3 can select machine
Tool formula steam trap, thermodynamic trap or thermostatic steam trap etc., are not specifically limited herein.By steam trap connection 3
Condensed water can be collected to unit water purification station, continue to do work to steam turbine after heating again.
It is preferred that, the steam pipeline 2 includes internal duct 21, entrance swivel joint 22 and outlet swivel joint 23;
The internal duct 21 is fixed together with the coal slime accommodating chamber 11, with the synchronous axial system of coal slime accommodating chamber 11;In described
The entrance of portion's pipeline 21 accesses the vapor by the steam turbine by the entrance swivel joint 22;The internal duct 21
Outlet by it is described outlet swivel joint 23 be connected with the steam trap connection 3.
It is preferred that, the internal duct 21 is steam pipe coil, the heat conducting pipe of generally disc-shaped spiral or is led in back-shaped
Heat pipe, heat conducting pipe uses the higher material of thermal conductivity, such as aluminium, stainless steel etc..
It is preferred that, the outer surface of the steam pipe coil is provided with radiating fin, radiating fin can from thermal conductivity good, matter
Gently, the metal of easy processing is attached at the outer surface of steam pipe coil, helps steam pipe coil to radiate with compound heat exchange pattern, with
Improve heating efficiency of the steam pipe coil to the coal slime in coal slime accommodating chamber 1.
It is preferred that, referring to Fig. 3, the coal slime drier also includes temperature-adjustment pressure-adjustment device 4, the temperature-adjustment pressure-adjustment device 4
It is connected with the air inlet of the steam pipeline 2, for the vapor by the steam turbine to be adjusted into saturated vapor, and will
Saturated vapor after regulation is conveyed into the steam pipeline 2.It is usual by the steam pressure and temperature of the vapor of steam turbine
It is higher, it is preferred that decompression cooling can be carried out to it and forms saturated vapor, saturated vapor liquefies to the cold in steam pipe coil, releases
The latent heat of phase change of releasing, is conducive to improving heating efficiency of the steam pipe coil to the coal slime in coal slime accommodating chamber 1.
It is preferred that, flight is housed, the flight is used for the coal slime accommodating chamber 1 on the inwall of the coal slime accommodating chamber 1
Interior coal slime is taken up and spilt down, increases the heating surface area of coal slime.
It is preferred that, chain is provided with the inwall of the coal slime accommodating chamber 1, for sticking to the coal slime accommodating chamber 1
Coal slime on inwall is cleaned.
It is preferred that, the wall contacts of the steam pipeline 2 are provided with shaking device, for preventing coal slime from adhering to
The outer wall of the steam pipeline 2.
It is preferred that, it is provided with referring to Fig. 3, the coal slime accommodating chamber 1 is additionally provided with exhaust outlet 13, the exhaust outlet 13
Air in induced-draught fan 131 and screen pack 132, the coal slime accommodating chamber 1 passes through the mistake in the presence of the induced-draught fan 131
Filter screen 132, to reduce the dust content in the air discharged from the coal slime accommodating chamber 1.
In several embodiments provided herein, it should be understood that disclosed system, apparatus and method can be with
Realize by another way.For example, device embodiment described above is only schematical, for example, the unit
Divide, only a kind of division of logic function there can be other dividing mode when actually realizing, such as multiple units or component
Another system can be combined or be desirably integrated into, or some features can be ignored, or do not perform.It is another, it is shown or
The coupling each other discussed or direct-coupling or communication connection can be the indirect couplings of device or unit by some interfaces
Close or communicate to connect, can be electrical, machinery or other forms.
The unit illustrated as separating component can be or may not be it is physically separate, it is aobvious as unit
The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be selected to realize the mesh of this embodiment scheme according to the actual needs
's.
Described above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations;Although with reference to before
Embodiment is stated the present invention is described in detail, it will be understood by those within the art that:It still can be to preceding
State the technical scheme described in each embodiment to modify, or equivalent substitution is carried out to which part technical characteristic;And these
Modification is replaced, and the essence of appropriate technical solution is departed from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a kind of coal slime drier, applied to thermal power generation system, it is characterised in that including:
Coal slime accommodating chamber, steam pipeline;
The coal slime accommodating chamber is used to accommodate coal slime, and the coal slime accommodating chamber includes coal slurry inlet and coal slime is exported, the coal slime
Entrance is being vertically higher than the coal slime outlet;
The steam pipeline is used to convey the vapor by steam turbine, and the steam pipeline is arranged at the coal slime and accommodated
The inside of chamber, for being heated for the coal slime in the coal slime accommodating chamber, to cause the humidity of the coal slime in the coal slime accommodating chamber
Reduction.
2. coal slime drier according to claim 1, it is characterised in that the coal slime drier also includes slew gear,
The slew gear is connected with the coal slime accommodating chamber, for driving the coal slime accommodating chamber to rotate.
3. coal slime drier according to claim 2, it is characterised in that the coal slime drier also includes steam trap connection,
The steam trap connection is connected with the outlet of the steam pipeline, for by the condensed water elimination in the steam pipeline to institute
State outside steam pipeline.
4. coal slime drier according to claim 3, it is characterised in that the steam pipeline includes internal duct, entered
Mouth swivel joint and outlet swivel joint;
The internal duct is fixed together with the coal slime accommodating chamber, with the coal slime accommodating chamber synchronous axial system;
The entrance of the internal duct accesses the vapor by the steam turbine by the entrance swivel joint;
The outlet of the internal duct is connected by the outlet swivel joint with the steam trap connection.
5. coal slime drier according to claim 4, it is characterised in that the internal duct is steam pipe coil.
6. coal slime drier according to claim 5, it is characterised in that the outer surface of the steam pipe coil is provided with radiating
Fin.
7. coal slime drier according to any one of claim 1 to 6, it is characterised in that the coal slime drier is also wrapped
Temperature-adjustment pressure-adjustment device is included, the temperature-adjustment pressure-adjustment device is connected with the air inlet of the steam pipeline, for that will pass through the vapour
The vapor of turbine is adjusted to saturated vapor, and the saturated vapor after regulation is conveyed into the steam pipeline.
8. coal slime drier according to any one of claim 1 to 6, it is characterised in that the coal slime accommodating chamber it is interior
Chain is provided with wall, for being cleaned to sticking to the coal slime on the coal slime receiving cavity wall.
9. coal slime drier according to any one of claim 1 to 6, it is characterised in that with the steam pipeline
Wall contacts are provided with shaking device, for preventing coal slime from adhering to the outer wall of the steam pipeline.
10. coal slime drier according to any one of claim 1 to 6, it is characterised in that the coal slime accommodating chamber is also set
It is equipped with exhaust outlet, the exhaust ports are provided with air in induced-draught fan and screen pack, the coal slime accommodating chamber in the air draught
Pass through the screen pack in the presence of machine, to reduce the dust content in the air discharged from the coal slime accommodating chamber.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201710681349.XA CN107314644A (en) | 2017-08-10 | 2017-08-10 | A kind of coal slime drier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201710681349.XA CN107314644A (en) | 2017-08-10 | 2017-08-10 | A kind of coal slime drier |
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Publication Number | Publication Date |
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CN107314644A true CN107314644A (en) | 2017-11-03 |
Family
ID=60174817
Family Applications (1)
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CN201710681349.XA Pending CN107314644A (en) | 2017-08-10 | 2017-08-10 | A kind of coal slime drier |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107940937A (en) * | 2017-12-19 | 2018-04-20 | 北京中矿环保科技股份有限公司 | Coal slime contact drying system |
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JPH01230916A (en) * | 1987-09-03 | 1989-09-14 | Mitsui Mining Co Ltd | Humidity conditioning method of coal |
US5580242A (en) * | 1993-12-11 | 1996-12-03 | Babcock Bsh Aktiengesellschaft | Rotary kiln |
CN105466174A (en) * | 2015-12-25 | 2016-04-06 | 孙发喜 | Vacuum tube bundle drying machine |
CN105779071A (en) * | 2016-03-22 | 2016-07-20 | 王定坤 | Dewatering upgrading system and method of high-moisture lignite |
CN106766854A (en) * | 2017-02-27 | 2017-05-31 | 西安热工研究院有限公司 | A kind of brown coal drying and upgrading electricity generation system |
CN207214688U (en) * | 2017-08-10 | 2018-04-10 | 阜阳华润电力有限公司 | A kind of coal slime drier |
-
2017
- 2017-08-10 CN CN201710681349.XA patent/CN107314644A/en active Pending
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JPH01230916A (en) * | 1987-09-03 | 1989-09-14 | Mitsui Mining Co Ltd | Humidity conditioning method of coal |
US5580242A (en) * | 1993-12-11 | 1996-12-03 | Babcock Bsh Aktiengesellschaft | Rotary kiln |
CN105466174A (en) * | 2015-12-25 | 2016-04-06 | 孙发喜 | Vacuum tube bundle drying machine |
CN105779071A (en) * | 2016-03-22 | 2016-07-20 | 王定坤 | Dewatering upgrading system and method of high-moisture lignite |
CN106766854A (en) * | 2017-02-27 | 2017-05-31 | 西安热工研究院有限公司 | A kind of brown coal drying and upgrading electricity generation system |
CN207214688U (en) * | 2017-08-10 | 2018-04-10 | 阜阳华润电力有限公司 | A kind of coal slime drier |
Non-Patent Citations (1)
Title |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107940937A (en) * | 2017-12-19 | 2018-04-20 | 北京中矿环保科技股份有限公司 | Coal slime contact drying system |
CN107940937B (en) * | 2017-12-19 | 2023-04-18 | 光大清洁技术股份有限公司 | Indirect drying system of coal slime |
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Application publication date: 20171103 |