CN107551578A - Flash-pot and foam-removing method for lignite hydro-thermal process slurrying - Google Patents
Flash-pot and foam-removing method for lignite hydro-thermal process slurrying Download PDFInfo
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- CN107551578A CN107551578A CN201610507435.4A CN201610507435A CN107551578A CN 107551578 A CN107551578 A CN 107551578A CN 201610507435 A CN201610507435 A CN 201610507435A CN 107551578 A CN107551578 A CN 107551578A
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Abstract
The present invention relates to a kind of flash-pot for lignite hydro-thermal process slurrying, including cylinder, it is arranged on indirect steam discharge pipe at the top of cylinder and is arranged on the discharge nozzle of cylinder body bottom, wherein, two feed pipes that eccentric opposed distribution is provided with the middle part of cylinder are used to convey coal slurry material to cylinder, placed in the middle erect is provided with a rotatable rotary shaft in cylinder, the disc turbine of axle rotation can not be relatively rotated by being accordingly provided with feed pipe in the middle part of rotary shaft, so that coal slurry material impact and rotating circular disc turbine, axle can not be relatively rotated in the rotary shaft be rotatably mounted deflector type demister above disc turbine, axle can not be relatively rotated on the rotating shaft below disc turbine and be rotatably mounted agitator.The present invention uses middle opposed charging, avoid abrasion cylinder body bottom, rotated simultaneously by disc turbine rotational band turn moving axis so that the agitator in rotary shaft bottom rotates, play a part of preventing that the sedimentation of solid-liquid material blocks in cylinder, and deflector type demister also rotates with rotary shaft, the equally distributed demister of dynamic is formed, more effectively foam removal, realizes foam removal stirring integratedization.
Description
Technical field
The present invention relates to flash-pot technical field, and in particular to for lignite hydro-thermal process slurrying from
Evaporator and foam-removing method.
Background technology
In lignite hydro-thermal process pulping process technology, the coal slurry after hydrothermal treatment need to pass through multistage certainly
Evaporator flashes, and decompression recovery indirect steam is used for the preheating of raw coal slurry, but existing flash-pot is straight
Scoop out use in lignite hydro-thermal process pulping process it is preferable not enough.
Flash-pot technology applies more, chemical industry liquid in chemical industry and alumina industry
It is relatively conventional with flash-pot, and solidliquid mixture flash-pot is rarely seen.In alumina industry, visit
Material used in Er Fa dissolutions workshop section flash-pot is solidliquid mixture, but more ask be present in actually using
Topic：1. cause internal solid-liquid material to settle without stirring inside flash-pot, cause discharge nozzle easily to block up
Plug, so as to parking process；2. existing flash-pot is mesohigh equipment, because difficulty of processing is big,
Internal foam removal sieve plate is less, so as to cause foam removal ineffective, frequently occurs steam strip phenomenon, causes
Make to install demister additional on existing flash-pot top, but install demister additional and do not only result in installing space and account for
The increase of ground area, also add equipment investment；3. existing flash-pot is mostly top vertical charging,
Material is larger to the bottom impact of flash-pot, phenomena such as so as to cause bottom worn out, it has to installs additional
Anti-wear liner plate etc., add investment and difficulty of processing.
Patent CN2652912Y discloses a kind of bauxite steam direct heating Bayer Process digestion three-level certainly
Evaporator, one-level demister is only provided with inside the patent flash-pot, foam removal is ineffective, causes
The second stage of entrainment with steam is serious, in addition bottom installation abrasion-resistant lining plate, although extending flash-pot bottom quilt
The worn out time, but do not solve the problem fundamentally.
Patent CN201809181U discloses a kind of flash-pot of sintering process production aluminum oxide, should
Also only has one-level demister inside patent flash-pot, although material clamp can be slowed down by extending feed pipe
Band, but do not have larger improvement.The umbrella baffle plate of bottom installation is more reasonable than original liner plate,
But again without fundamentally solve the problems, such as material wear tank bottom.
Patent CN101579579B discloses a kind of method of evaporator multilevel defoaming, in the patent
Install multilevel defoaming device at the top of flash-pot additional, effectively solve material entrainment problem, but multistage is removed
Foam device length is larger, can take larger installing space, while also increase equipment investment.
Above-mentioned three patents are the current flash-pot type of alumina industry, although delaying to a certain degree
Subproblem present in above-mentioned flash-pot application has been solved, but has not solved above-mentioned ask thoroughly
Topic, and inside does not have agitating device, therefore be applied in lignite hydro-thermal process pulping process and also deposit
In many problems.
The content of the invention
A kind of the defects of it is an object of the invention to overcome above-mentioned flash-pot to exist, there is provided structure letter
List, foam removal stirring integratedization, cost be cheap, suitable for lignite hydro-thermal pulping process flash-pot with
And the method that foam removal is carried out using the flash-pot.
The present invention solves above-mentioned technical problem by the following technical programs：
According to an aspect of the present invention, there is provided a kind of spontaneous evaporation for lignite hydro-thermal process slurrying
Device, including cylinder, be arranged on the cylinder top indirect steam discharge pipe and be arranged on the cylinder
The discharge nozzle of bottom, wherein, it is provided with two feed pipes of the opposed distribution of bias at the middle part of the cylinder
For conveying coal slurry material to cylinder, placed in the middle erect is provided with one rotatable turn in the cylinder
Moving axis, axle rotation can not be relatively rotated by being accordingly provided with the feed pipe in the middle part of the rotary shaft
Disc turbine so as to the coal slurry material impact and the disc turbine be rotated, in the disc turbine
Top is provided with the deflector type demister that can not relatively rotate axle rotation in the rotary shaft, described
The agitator of axle rotation can not be relatively rotated by being provided with below disc turbine in the rotary shaft.
According to another aspect of the present invention, there is provided one kind, which utilizes, above-mentioned is used for lignite hydro-thermal process slurrying
Flash-pot carry out foam removal method, wherein, this method comprises the following steps：
Step 1：Coal slurry material is sprayed into by the flash-pot by the opposed feed pipe of the bias
In cylinder, thus impact the disc turbine and drive the disc turbine to rotate；
Step 2：Drive the rotary shaft to rotate by the disc turbine rotated by driving, thus make institute
Agitator and the deflector type demister are stated jointly as the rotary shaft is rotated so as in the same of foam removal
When prevent solid-liquid material in the cylinder settles from blocking；
Step 3：The coal slurry material is discharged by the discharge nozzle.
In the above-mentioned flash-pot for lignite hydro-thermal process slurrying according to the present invention, by hydro-thermal
HTHP coal slurry material after processing is injected into the cylinder of flash-pot by eccentric opposed type feed pipe
In vivo, impact disc turbine and make turbine rotation, this impact makes coal slurry material fully scatter, and strengthens
Spontaneous evaporation effect, while the high pressure potential energy of coal slurry material is successfully also kinetic energy by turbine, is had
Effect ground is fallen by abrasion conversion of the impulsive force to equipment.The turbine of rotation drives rotary shaft to rotate, so that
Agitator positioned at rotary shaft bottom rotates, and plays the work for preventing that the sedimentation of solid-liquid material blocks in cylinder
With.Deflector type demister also rotates with the rotary shaft, forms an equally distributed demister of dynamic,
More efficiently foam removal, while also save considerably the material of demister.It is secondary caused by the spontaneous evaporation
Steam is discharged after foam removal, by the indirect steam discharge pipe at the top of flash-pot and then reclaims profit
With the coal slurry material of flash-pot bottom is with continuous charging, in control flash-pot materials inside
While with certain liquid level, discharged by the discharge nozzle positioned at spontaneous evaporation bottom, into next stage certainly
The further decrease temperature and pressure recovery heat of evaporator.
According to an embodiment of the invention, the indirect steam discharge pipe is located at the top of flash-pot
Portion, indirect steam are discharged and are provided with support on inside pipe wall, and it for example passes through bearing with rotating axis connection.
According to an embodiment of the invention, the deflector type demister includes up and down staggeredly and opposed
Ground is arranged on multiple deflection plates in the rotary shaft, and the width of the deflection plate is rotation shaft diameter
2-4 times, length is the 3/4 of barrel diameter, so as to touch cylinder inboard wall and to greatest extent when avoiding and rotating
Ground is covered with cylinder radial section, so as to preferably foam removal.The deflection plate dips down according in low-angle
Oblique mode is preferably welded to the rotary shaft and formed relative to the rotary shaft be more than 80 degree
And less than 90 degree of angle, the deflection plate the one end being connected with the rotary shaft with it is described
The semicircular indentations that the shape of rotary shaft matches, and have in the other end corresponding with cylinder inboard wall
Arc-shaped profile.
According to an embodiment of the invention, disc turbine can use the disc turbine of prior art,
It can be straight leaf disc turbine or hinged joint disc turbine, and turbine overall diameter is the 1/2 of barrel diameter,
And the number of blade >=4 of disc turbine.
According to an embodiment of the invention, described two feed pipes be it is eccentric be opposed to arrangement and
And it is corresponding with the position of disc turbine, so that the coal slurry material from feed pipe sprays into and drives disk
Turbine rotation, wherein described two feed pipes are preferably horizontally disposed.
According to an embodiment of the invention, the agitator can be push type, paddle, unlatching
Turbine type, orbital etc., preferably paddle.
According to an embodiment of the invention, the discharge nozzle extend to inner barrel and from cylinder
Junction start at and be higher by cylinder bottom surface about 300-600mm, on the inwall of the raised area of discharge nozzle
Support is installed, it is for example by bearing with rotating axis connection.
Had the following advantages that compared with prior art according to the flash-pot of the present invention：
1. opposed charging, avoids abrasion cylinder body bottom, while rotate by disc turbine among using
Successfully material high pressure potential energy is used for kinetic energy, is strengthening the same of spontaneous evaporation effect
When, also effectively abrasion conversion of the impulsive force to equipment is fallen.
2. adding agitating function, thoroughly solves material sedimentation plug hidden danger, while stirring power is come
Come from material self-energy, thus energy-conserving and environment-protective.
3. forming dynamic demister using the deflector type demister rotated, foam removal effect is not only increased,
Secondary gas material clamp band is avoided, demister material is also save considerably, reduces equipment cost.
Brief description of the drawings
Fig. 1 is the structural representation according to the flash-pot of embodiments of the invention.
Fig. 2 is the cross-sectional schematic diagram according to the deflection plate of the flash-pot of embodiments of the invention.
Fig. 3 is the schematic diagram according to the disc turbine of embodiments of the invention.
Fig. 4 is the schematic top plan view according to the arrangement of two eccentric feed pipes of embodiments of the invention.
Embodiment
With reference to embodiment, the present invention is described in further detail, implementation of the invention
Mode includes but is not limited to following embodiments.In the accompanying drawings, identical reference is used for identical
Or similar parts.
Description, describe the presently disclosed spontaneous evaporation for lignite hydro-thermal process slurrying in detail
The exemplary scheme of device.Although it is that accompanying drawing is not in order to which embodiments of the present invention are presented to provide accompanying drawing
It must be drawn by the size of specific embodiment, and some features can be exaggerated, remove or office is cutd open with more
Show and explain well the disclosure.Partial component in accompanying drawing can imitate in not influence technique
Position adjustment is carried out on the premise of fruit according to the actual requirements.
Fig. 1 schematically shows the flash-pot for lignite hydro-thermal process slurrying according to the present invention, it
It is foam removal stirring integratedization and is that eccentric opposed type is fed.Therefore, it can include cylinder 1,
The indirect steam discharge pipe 2 for being arranged on the top of cylinder 1 and the discharge nozzle for the bottom for being arranged on cylinder 1
3, wherein, it can be provided with two (reference charts of feed pipe 4 of eccentric opposed distribution at the middle part of cylinder 1
4) it is used to convey coal slurry material to cylinder 1, can be between two parties erect in the cylinder 1 and be provided with one
Rotatable rotary shaft 5, can accordingly be installed with the feed pipe at the middle part of the rotary shaft 5
The disc turbine 6 of the rotation of axle 5 can not be relatively rotated by having, and so as to the coal slurry material impact and rotate institute
Disc turbine 6 is stated, can be provided with the rotary shaft 5 in the top of the disc turbine can not
The deflector type demister 7 that axle 5 rotates is relatively rotated, in the lower section of the disc turbine in rotary shaft 5
On can be provided with can not relatively rotate axle 5 rotation agitator 8.
Fig. 2 schematically shows the sectional elevation of deflection plate, and the width W of the deflection plate preferably turns
2-4 times of the diameter of moving axis 5, its length L are preferably the 3/4 of the diameter of cylinder 1.With reference to figure 1 and Fig. 2,
The deflector type demister 7 can include staggeredly and being opposed to be fixed on more in the rotary shaft up and down
Individual deflection plate, deflection plate according to being tilted down in low-angle in a manner of be preferably soldered and be connected to described turn
Moving axis 5 and it is preferably formed as being more than 80 degree with the rotary shaft 5 and is less than 90 degree of angle, moreover,
The deflection plate can have the shape with rotary shaft 5 in the one end being connected with each other with the rotary shaft 5
The semicircular indentations to match, and can have what the inwall with the cylinder 1 matched in the other end
Arc-shaped profile.
Fig. 3 schematically shows the disc turbine of the flash-pot according to the present invention.Herein, disk whirlpool
The overall diameter D of wheel 6 is preferably the number of blade >=4 of 1/2 and disc turbine of barrel diameter.
Fig. 4 schematically shows the arrangement knot of two eccentric feed pipes of the flash-pot according to the present invention
Structure.
Hereinafter, describe to be used for lignite hydro-thermal process according to the present invention referring to Fig. 1, Fig. 3 and Fig. 4
The course of work of the flash-pot of slurrying utilizes the foam-removing method of above-mentioned flash-pot in other words.First,
Such as the HTHP coal slurry material after hydro-thermal process can pass through the eccentric opposed quilt of feed pipe 4
Spray into the cylinder 1 of flash-pot, impact disc turbine 6 and disc turbine 6 can be driven to rotate,
This impact makes coal slurry material fully scatter, and enhances spontaneous evaporation effect, while disc turbine 6 may be used also
Using successfully by the high pressure potential energy of coal slurry material as kinetic energy, the effectively mill by impulsive force to equipment
Damage conversion is fallen.Then, by the disc turbine 6 that driving rotates rotary shaft 5 can be driven to rotate, so as to
The agitator 8 positioned at the bottom of rotary shaft 5 is set also to rotate, playing prevents that solid-liquid material settles in cylinder 1
The effect of blocking.Deflector type demister 7 rotates with rotary shaft 5 herein, forms dynamic and is uniformly distributed
Demister, more effectively foam removal, realize foam removal stirring integratedization, while also save considerably foam removal
The material of plate.Indirect steam caused by spontaneous evaporation, can be by the top of flash-pot after foam removal
Indirect steam discharge pipe 2 is discharged and then recycled, and the coal slurry material of flash-pot bottom is with continuous
Charging can control flash-pot materials inside there is certain liquid level while by positioned at from steam
The discharge nozzle 3 of hair device bottom is discharged, such as is reclaimed into the further decrease temperature and pressure of next stage flash-pot
Heat.
It should be understood that term " top ", " bottom " and " middle part " used herein and " on ",
" under " it is related to position relationship when being erect for the flash-pot of lignite hydro-thermal process slurrying.In addition,
Term " eccentric opposed " used herein is the central shaft relative to the cylinder when flash-pot is erect
For line or center, as shown in Figure 4.
It should be appreciated that although this specification is described according to embodiment, not each embodiment is only
Comprising an independent technical scheme, this narrating mode of specification is only for clarity, originally
Art personnel should be using specification as an entirety, technical scheme and feature in embodiment
Can through appropriately combined and formed it will be appreciated by those skilled in the art that other embodiment.
The schematical embodiment of the present invention is the foregoing is only, is not limited to the present invention's
Scope.Any those skilled in the art is made on the premise of the design of the present invention and principle is not departed from
Equivalent variations, modification and combination, the scope of protection of the invention all should be belonged to.
Description of reference numerals
1- cylinders, 2- indirect steam discharge pipes, 3- discharge nozzles, 4- feed pipes, 5- rotary shafts, 6- disc turbines,
7- deflector type demisters, 8- agitators, 9- indirect steams discharge pipe holder, 10- discharging pipe holders.
Claims (8)
1. a kind of flash-pot for lignite hydro-thermal process slurrying, including cylinder (1), it is arranged on the cylinder
The indirect steam discharge pipe (2) at the top of body (1) and be arranged on the cylinder (1) bottom discharge nozzle (3),
Characterized in that, two feed pipes (4) that eccentric opposed distribution is provided with the middle part of the cylinder (1) are used for
Coal slurry material is conveyed to the cylinder (1), placed in the middle erect is provided with one rotatably in the cylinder (1)
Rotary shaft (5), being accordingly provided with the feed pipe in the middle part of the rotary shaft (5) can not be relative
Rotary shaft (5) the non-rotatable disc turbine (6) is so as to the coal slurry material impact and rotate the circle
Disk turbine (6), can not the relative rotary shaft (5) in the rotary shaft (5) in the top of the disc turbine
Deflector type demister (7) is rotatably mounted, in the lower section of the disc turbine in the rotary shaft (5)
On agitator (8) can not be rotatably mounted with respect to the rotary shaft (5).
2. the flash-pot according to claim 1 for lignite hydro-thermal process slurrying, its feature
It is, the deflector type demister (7) includes interlocking up and down and is opposed to be arranged on the rotary shaft (5)
On multiple deflection plates, the width (W) of the deflection plate is 2-4 times of the diameter of the rotary shaft (5),
The length (L) of the deflection plate is the 3/4 of the diameter of the cylinder (1).
3. the flash-pot according to claim 1 or 2 for lignite hydro-thermal process slurrying, its
Be characterised by, the deflection plate according to being tilted down in low-angle in a manner of be welded on the rotary shaft
(5) angle more than 80 degree and less than 90 degree, the deflection plate are formed on and relative to the rotary shaft
There is the semicircle that the shape with the rotary shaft (5) matches in the one end being connected with the rotary shaft (5)
V notch v, there is the arc-shaped profile corresponding with the inwall of the cylinder (1) in the other end.
4. the flash-pot according to claim 1 for lignite hydro-thermal process slurrying, its feature
It is, the agitator (8) is push type, paddle, opens turbine type or orbital.
5. the flash-pot according to claim 1 for lignite hydro-thermal process slurrying, its feature
It is, the disc turbine (6) is straight leaf disc turbine or hinged joint disc turbine, and the disk whirlpool
The overall diameter (D) for taking turns (6) is the 1/2 of barrel diameter, and the number of blade >=4 of disc turbine.
6. the flash-pot according to claim 1 for lignite hydro-thermal process slurrying, its feature
It is, indirect steam discharge pipe holder (9) is installed on the inwall of the indirect steam discharge pipe (2)
Pipe holder (9) is discharged for the upper end of the rotary shaft (5) to be fixed on into the indirect steam, described
Discharging pipe holder (10) is installed, the lower end of the rotary shaft (5) is fixed on the inwall of discharge nozzle (3)
On the discharging pipe holder (10).
7. the flash-pot according to claim 1 for lignite hydro-thermal process slurrying, its feature
It is, it is internal and from the connection with the cylinder (1) that the discharge nozzle (3) extends to the cylinder (1)
Place, which is started at, is higher by about 300 millimeters to 600 millimeters of the cylinder (1) bottom surface.
8. one kind, which utilizes, according to any one of claim 1 to 7 is used for lignite hydro-thermal process system
The method that the flash-pot of slurry carries out foam removal, it is characterised in that this method comprises the following steps：
Step 1：Coal slurry material is sprayed into by the flash-pot by the opposed feed pipe (4) of the bias
Cylinder (1) in, thus impact the disc turbine (6) and drive the disc turbine (6) rotate；
Step 2：The rotary shaft (5) is driven to rotate by the disc turbine (6) rotated by driving, thus
Make the agitator (8) and the deflector type demister (7) jointly with the rotary shaft (5) rotate so as to
Prevent the solid-liquid material in the cylinder (1) from settling to block while foam removal；
Step 3：The coal slurry material is discharged by the discharge nozzle (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610507435.4A CN107551578A (en) | 2016-06-30 | 2016-06-30 | Flash-pot and foam-removing method for lignite hydro-thermal process slurrying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610507435.4A CN107551578A (en) | 2016-06-30 | 2016-06-30 | Flash-pot and foam-removing method for lignite hydro-thermal process slurrying |
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| Publication Number | Publication Date |
|---|---|
| CN107551578A true CN107551578A (en) | 2018-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610507435.4A Pending CN107551578A (en) | 2016-06-30 | 2016-06-30 | Flash-pot and foam-removing method for lignite hydro-thermal process slurrying |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108057412A (en) * | 2018-01-31 | 2018-05-22 | 四川普思瑞新材料有限公司 | It is a kind of to be sufficiently stirred the dilution kettle being heated evenly |
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| CN101579579A (en) * | 2009-06-01 | 2009-11-18 | 中国铝业股份有限公司 | Multilevel defoaming method of evaporator |
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| US20140251881A1 (en) * | 2013-03-11 | 2014-09-11 | Heartland Technology Partners Llc | Concentrated wastewater slurry thickening and storage system and stabilization batch treatment plant |
| CN204193538U (en) * | 2014-09-19 | 2015-03-11 | 东营海纳新材料有限公司 | A kind of fluorine-containing new material distillation agitating type No clean distillation still |
| CN204319790U (en) * | 2014-12-02 | 2015-05-13 | 蔡雅棠 | A kind of unpowered luwa evaporator |
| CN205913788U (en) * | 2016-06-30 | 2017-02-01 | 大唐国际化工技术研究院有限公司 | A flash ware for slurrying of brown coal hydrothermal processing |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB810521A (en) * | 1956-09-27 | 1959-03-18 | Hydro Equipment Corp | Method and apparatus for removing entrained moisture from oil |
| CN1509792A (en) * | 2002-12-23 | 2004-07-07 | 佟庆杰 | Distilling still |
| CN2652912Y (en) * | 2003-09-26 | 2004-11-03 | 中国铝业股份有限公司 | Three grade self evaporator by bauxite steam direct heating Bayer method digestion |
| CN201470132U (en) * | 2009-03-12 | 2010-05-19 | 杭州三隆新材料有限公司 | Efficient hybrid evaporating kettle |
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| CN202155058U (en) * | 2010-05-31 | 2012-03-07 | 王延海 | Conical wiped thin-film evaporator for used oil |
| CN201809181U (en) * | 2010-09-29 | 2011-04-27 | 中国铝业股份有限公司 | Spontaneous evaporator |
| US20140251881A1 (en) * | 2013-03-11 | 2014-09-11 | Heartland Technology Partners Llc | Concentrated wastewater slurry thickening and storage system and stabilization batch treatment plant |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108057412A (en) * | 2018-01-31 | 2018-05-22 | 四川普思瑞新材料有限公司 | It is a kind of to be sufficiently stirred the dilution kettle being heated evenly |
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Application publication date: 20180109 |