CN205740928U - High-quality water-coal-slurry prepares processing system - Google Patents
High-quality water-coal-slurry prepares processing system Download PDFInfo
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- CN205740928U CN205740928U CN201620658641.0U CN201620658641U CN205740928U CN 205740928 U CN205740928 U CN 205740928U CN 201620658641 U CN201620658641 U CN 201620658641U CN 205740928 U CN205740928 U CN 205740928U
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Abstract
This utility model provides a kind of high-quality water-coal-slurry to prepare processing system, including coal pulverizer (1), rotary screen (2), coal machine blow tank (3), coal pulverizer blow tank pump (4) and coal slurry reflux line (5).Advantage is: (1) i.e. solves the low problem of utilization rate of equipment and installations, is effectively increased again coal slurry quality, also extends coal pulverizer service life.(2) there is advantage simple to operate, easy to use.
Description
Technical field
This utility model belongs to water-coal-slurry preparing technical field, is specifically related to a kind of high-quality water-coal-slurry preparation and processes system
System.
Background technology
Coal pulverizer output product is water-coal-slurry, and water-coal-slurry may be used for burning and gasification, such as, is available for four nozzle water-coal-slurry
Pressurized-gasification furnace uses, and produces qualified water coal gas for rear workshop section synthesizing methanol.
The water-coal-slurry that existing coal pulverizer prepares, has the problem that coal slurry particle size distribution is undesirable, specially coarse grain
Son is on the high side, thus constrains the lifting of coal-water fluid concentration, have impact on water-coal-slurry quality.
Utility model content
The defect existed for prior art, this utility model provides a kind of high-quality water-coal-slurry to prepare processing system,
Can effectively solve the problems referred to above.
The technical solution adopted in the utility model is as follows:
This utility model provide a kind of high-quality water-coal-slurry prepare processing system, including coal pulverizer (1), rotary screen (2),
Coal machine blow tank (3), coal pulverizer blow tank pump (4) and coal slurry reflux line (5)；
Wherein, described coal pulverizer (1) and described rotary screen (2) are fixing to be connected, the coal slurry overfall of described coal pulverizer (1) with
The charging aperture connection of described rotary screen (2)；The coal slurry of described rotary screen (2) filters mouth and is positioned at entering of described coal machine blow tank (3)
The surface of material mouth；The charging aperture of described coal pulverizer blow tank pump (4) connects with described coal machine blow tank (3) of stating；Described state coal
The discharge gate of machine blow tank (3) is communicated with coal slurry conveyance conduit (6), and the port of export of described coal slurry conveyance conduit (6) is together with lower
The coal slurry mouth that enters of operation connects；Coal slurry reflux line (5), described coal slurry return duct is drawn from described coal slurry conveyance conduit (6)
The arrival end in road (5) connects with described coal slurry conveyance conduit (6)；The port of export of described coal slurry reflux line (5) is connected to described
The coal feeding pipe road of coal pulverizer (1)；Close arrival end described coal slurry reflux line (5) is provided with the 1st valve (7)；Described
The close port of export of coal slurry reflux line (5) is provided with the 2nd valve (8).
Preferably, described 1st valve (7) and described 2nd valve (8) are ball valve.
Preferably, described coal slurry reflux line (5) is also equipped with for discharging leading pouring ball valve (9) and being used for connecing punching of coal slurry
The flushing ball valve (10) of wash water；Described leading is drenched ball valve (8) and is positioned at the rear side of described 1st valve (7)；Described flushing ball valve (10) position
Front side in described 2nd valve (8).
Preferably, described coal slurry reflux line (5) is also equipped with effusion meter (11).
The high-quality water-coal-slurry that this utility model provides is prepared processing system and is had the advantage that
(1) i.e. solve the low problem of utilization rate of equipment and installations, be effectively increased again coal slurry quality, also extend coal pulverizer and use the longevity
Life.
(2) there is advantage simple to operate, easy to use.
Accompanying drawing explanation
Fig. 1 prepares the structural representation of processing system for the high-quality water-coal-slurry that this utility model provides；
Detailed description of the invention
In order to make this utility model be solved the technical problem that, technical scheme and beneficial effect clearer, below
In conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that described herein being embodied as
Example, only in order to explain this utility model, is not used to limit this utility model.
My company's gasification installation coal-grinding operation, original design coal pulverizer three, it is standby that operational mode two opens one.Existing coal pulverizer runs
Pattern three is opened off guard, coal pulverizer specifications and models: 4.0*6.0m wet type overflow type rod mill, coal pulverizer blow tank pump 6, specification type
Number: SGM102/1, corresponding two the coal pulverizer blow tank pumps of coal pulverizer, it is standby that coal pulverizer blow tank pump one leaves one.Design coal slurry
Concentration 58 60%, coal feeding amount 1500 ton day, density 1.2t/m3, viscosity 600～1000mpa.s.
Above-mentioned technique has following subject matter:
Former coal-grinding operation two open one for time, coal pulverizer coal feeding amount 70t/h, coal thrown by existing three coal pulverizers when opening operational mode off guard
Amount 46.7t/h, coal pulverizer load reduction, coal pulverizer blow tank pump is also corresponding by original conveying capacity 88m3/h (the specified stream of this pump
Amount 102m3/h) fall below 58.7m3/h, thus low load with strong power phenomenon occurs；It addition, in existing technique, coal slurry particle size distribution
Undesirable, practice have shown that it is that corase particles is on the high side, constrain the lifting of coal-water fluid concentration, need to be optimized particle size distribution, increase
Fine particle content, thus optimize coal slurry quality, improve coal-water fluid concentration；For giving full play to coal pulverizer, coal pulverizer blow tank pump efficiency,
Optimizing coal slurry particle size distribution, improve concentration, energy-conservation raising production capacity of taping the latent power, inventor have developed the high-quality that this utility model provides
Water-coal-slurry prepare processing system.
In conjunction with Fig. 1, the high-quality water-coal-slurry provided for this utility model prepares the structural representation of processing system, including
Coal pulverizer 1, rotary screen 2, coal machine blow tank 3, coal pulverizer blow tank pump 4 and coal slurry reflux line 5；
Wherein, coal pulverizer 1 and the fixing connection of rotary screen 2, the coal slurry overfall of coal pulverizer 1 connects with the charging aperture of rotary screen 2
Logical；The coal slurry of rotary screen 2 filters the surface that mouth is positioned at the charging aperture of coal machine blow tank 3；The charging aperture of coal pulverizer blow tank pump 4
Connect with coal machine blow tank 3；The discharge gate of coal machine blow tank 3 is communicated with coal slurry conveyance conduit 6, the outlet of coal slurry conveyance conduit 6
End connects with the coal slurry mouth that enters of next process；Coal slurry reflux line 5, coal slurry reflux line 5 is drawn from coal slurry conveyance conduit 6
Arrival end connect with coal slurry conveyance conduit 6；The port of export of coal slurry reflux line 5 is connected to the coal feeding pipe road of coal pulverizer 1；At coal
The close arrival end of slurry reflux line 5 is provided with the 1st valve 7；The close port of export at coal slurry reflux line 5 is provided with the 2nd valve
Door 8.
Wherein, the 1st valve the 7 and the 2nd valve 8 is ball valve.Coal slurry reflux line 5 is also equipped with for discharging leading of coal slurry
Drench ball valve 9 and for connecing the flushing ball valve 10 of flushing water；Lead pouring ball valve 8 and be positioned at the rear side of the 1st valve 7；Rinse ball valve 10 to be positioned at
The front side of the 2nd valve 8.Coal slurry reflux line 5 is also equipped with effusion meter 11.
Above-mentioned high-quality water-coal-slurry is prepared in processing system, and the operation principle of capital equipment is:
(1) coal pulverizer
Coal pulverizer function and effect: when coal pulverizer rotates clockwise under synchronous motor drives, the rod iron being contained in cylinder
It is thus lifted to certain altitude with cylinder revolution under frictional force and centripetal force effect, then according to certain linear velocity is left,
Coal is by the additional crushing between shock and rod iron and the rod iron of whereabouts rod iron and between rod iron and cylinder and mill stripping effect
Crushed, and make the qualified material ground overflow from coal pulverizer cylinder by coal pulverizer feed end coal, the impulsive force of water,
Enter rotary screen.
(2) rotary screen
Rotary screen function and effect: the coal slurry gone out from coal pulverizer outlet overflows enters rotary screen, and rotary screen effect is by coal
In slurry, bulky grain is sieving through and filters.Rotary screen and the direct Flange joint of coal pulverizer, synchronize to rotate clockwise with coal pulverizer.
(3) coal machine blow tank
Coal machine blow tank function and effect: the qualified coal slurry sieved from rotary screen relies on gravity overflow to go out to coal pulverizer
Hopper.Coal machine blow tank plays the qualified coal slurry effect of caching.
(4) coal pulverizer blow tank pump
Coal pulverizer blow tank pumping function and effect: the qualified coal slurry of coal pulverizer blow tank storage is by pipeline and coal pulverizer
Blow tank pump connects, and wherein, coal pulverizer blow tank pump may be designed as two, by two coal pulverizer blow tank pumps by coal pulverizer discharging
In groove, qualified coal slurry delivers to lower operation.Coal pulverizer blow tank pumps up the effect of coal slurry conveying.
(5) coal slurry reflux line
By coal slurry reflux line, the coal slurry conveyance conduit connected by coal pulverizer blow tank pump discharge end draws one point
, thus the water-coal-slurry that coal pulverizer blow tank pump is discharged is back to the feed end of coal pulverizer, carry out secondary and grind.
Technical process is:
1) broken coal that granularity is below 10mm that front operation is discharged is continuously introduced into coal pulverizer after metering, simultaneously at coal pulverizer
Entrance is also continuously added to water, additive (water and additive are used for regulating coal pulverizer concentration, reduce viscosity of coal slurry and stablize coal slurry).
Coal, water, additive carry out proportioning according to coal-water fluid concentration, are milled to the required coal slurry that gasifies in coal pulverizer.
2) coal slurry of coal pulverizer overflow is after one-level rotary screen filters off bulky grain, and coal slurry relies on gravity overflow to go out to coal pulverizer
Hopper.
3) coal slurry that coal pulverizer blow tank is qualified, is pumped into lower operation by coal pulverizer blow tank.
Wherein, the coal pulverizer secondary that comes into operation grinds (improving coal slurry quality) pipeline, and concrete operation step process is as follows: start mill
Coal machine blow tank pump, after confirming that coal pulverizer blow tank pump operation is stable, confirms that regrinding pipeline possesses the condition of coming into operation, standard-sized sheet
1st valve the 7 and the 2nd valve 8, closes and leads pouring ball valve 9 and rinse ball valve 10, improve coal pulverizer blow tank revolution speed, by 500rpm
Left and right carries to about 800rpm, the aperture of regulation regrinding pipeline the 1st valve 7, makes flow meter stability of flow at 29.3m3/h
Left and right.
Regrinding coal slurry pipeline effect: one, returned to the 29.3m3/h coal of coal pulverizer by regrinding coal slurry pipeline
In slurry, coal grain diameter 98% is less than 1.4mm, mixes with the newly entering coal pulverizer 85% coal grain diameter feed coal more than more than 1.4mm
After, average coal grain diameter is greatly reduced.Two, the viscosity of coal slurry returned is big, it is possible to stick near coal pulverizer entrance point rod iron
On head, make the granule sticking on rod iron pound, grind, shell less, rod iron is played a protective role by the fine grained of adhesion simultaneously, subtracts
Rod iron, lifting strip, the abrasion of steel lining at slow coal pulverizer inlet；This pipeline has the function (special configuration of Ultrafine Grinding after coming into operation
A set of Ultrafine Grinding device needs to invest 1000-1200 ten thousand).
Principle: coal slurry particle size distribution is one of technic index important in coal water slurry gasification technology, which determines coal slurry
Performance, coal slurry be reaction efficiency etc. in gasification furnace.In pulping process, the particle size distribution of coal is to determine water coal slurry concentration and flowing
The key factor of property.In order to prepare the water-coal-slurry of a kind of high concentration, it is desirable to the content of each particle diameter of pulverized coal particle to have certain dividing
Cloth, making the space between bulky grain is the filling of fine grained institute, and the space between fine grained again can be for the filling of more fine grained institute, to reduce sky
The water yield that gap is consumed, thus improve slurrying concentration, good grain size distribution can make additive adsorb well with coal surface,
Thus improve stability of coal slurry.Coal water slurry gasification requires that coal slurry granule to reach optimal at 33-43% less than the granule of 320 mesh.
One of principal element affecting coal slurry particle size distribution is into coal pulverizer raw coal size: enter grinding machine raw coal size big, discharging coal
Slurry granularity increases, and enters grinding machine raw coal size little, then discharging coal slurry granularity attenuates.By regrinding coal slurry pipeline returning part
Coal slurry enters coal pulverizer and can be filled in newly entering feed coal gap, enters coal pulverizer later in addition to mill is situated between and grinds, big coal
Mutually grind between grain and buckwheat coal, improve fine particle content further, optimize particle size distribution, improve coal slurry quality.
This utility model is applied to prepare the coal-grinding operation of water-coal-slurry with coal for raw material, water-coal-slurry may be used for burning and
Gasification.
This utility model i.e. solves equipment when mode operation off guard left by coal pulverizer three and occurs that low load with strong power energy consumption height is asked
Topic, is effectively improved again coal slurry quality.Concrete, three when opening off guard, owing to coal pulverizer and blow tank pump load are out two coal-grindings
, there is low load with strong power phenomenon in during machine 2/3, this utility model novelty join a road pipeline from coal pulverizer blow tank pump discharge
Arrive and this coal pulverizer blow tank pump supporting coal pulverizer import, utilize this pipe arrangement, coal pulverizer blow tank pump discharge coal slurry is drawn
About 29.3m3/h, returns to coal pulverizer and carries out regrinding, makes the coal slurry fine particle content after grinding increase, is filled into bulky grain
Gap, improves coal slurry quality.
After this utility model is implemented, coal slurry quality rises substantially, and the rising of coal slurry quality is conducive to improving water-coal-slurry and gives vent to anger
Amount, the beneficially raising of methanol output.After coming into operation, coal-water fluid concentration can rise 0.2--0.45%, and methanol output rises about
18--30 ton day, obtains the economic benefit added.
In sum, the high-quality water-coal-slurry that this utility model provides prepares processing system, has the advantage that
(1) i.e. solve the low problem of utilization rate of equipment and installations, be effectively increased again coal slurry quality, also extend coal pulverizer and use the longevity
Life.
(2) there is advantage simple to operate, easy to use.
The above is only preferred implementation of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of without departing from this utility model principle, it is also possible to make some improvements and modifications, these improve and
Retouching also should regard protection domain of the present utility model.
Claims (4)
1. a high-quality water-coal-slurry prepares processing system, it is characterised in that include coal pulverizer (1), rotary screen (2), coal machine
Blow tank (3), coal pulverizer blow tank pump (4) and coal slurry reflux line (5)；
Wherein, described coal pulverizer (1) and the fixing connection of described rotary screen (2), the coal slurry overfall of described coal pulverizer (1) is with described
The charging aperture connection of rotary screen (2)；The coal slurry of described rotary screen (2) filters mouth and is positioned at the charging aperture of described coal machine blow tank (3)
Surface；The charging aperture of described coal pulverizer blow tank pump (4) connects with described coal machine blow tank (3)；Described coal machine blow tank
(3) discharge gate is communicated with coal slurry conveyance conduit (6), and the port of export of described coal slurry conveyance conduit (6) enters with next process
Coal slurry mouth connects；Coal slurry reflux line (5), entering of described coal slurry reflux line (5) is drawn from described coal slurry conveyance conduit (6)
Mouth end connects with described coal slurry conveyance conduit (6)；The port of export of described coal slurry reflux line (5) is connected to described coal pulverizer (1)
Coal feeding pipe road；Close arrival end described coal slurry reflux line (5) is provided with the 1st valve (7)；At described coal slurry return duct
The close port of export in road (5) is provided with the 2nd valve (8).
High-quality water-coal-slurry the most according to claim 1 prepares processing system, it is characterised in that described 1st valve (7)
It is ball valve with described 2nd valve (8).
High-quality water-coal-slurry the most according to claim 1 prepares processing system, it is characterised in that described coal slurry return duct
Road (5) is also equipped with for discharging leading pouring ball valve (9) and being used for connecing the flushing ball valve (10) of flushing water of coal slurry；Described lead pouring ball
Valve (9) is positioned at the rear side of described 1st valve (7)；Described flushing ball valve (10) is positioned at the front side of described 2nd valve (8).
High-quality water-coal-slurry the most according to claim 1 prepares processing system, it is characterised in that described coal slurry return duct
Road (5) is also equipped with effusion meter (11).
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| CN201620658641.0U CN205740928U (en) | 2016-06-28 | 2016-06-28 | High-quality water-coal-slurry prepares processing system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107267234A (en) * | 2017-06-16 | 2017-10-20 | 湖北宜化集团有限责任公司 | The water-coal-slurry for eliminating peculiar smell prepares processing system |
| CN107699304A (en) * | 2017-10-17 | 2018-02-16 | 江苏秋林特能装备股份有限公司 | Domestic sludge is mixed with fuel coal water slurry complete set of equipments with raw coal |
| CN109536223A (en) * | 2018-11-07 | 2019-03-29 | 南京楠达环保科技有限公司 | A kind of preparation method and production equipment of high concentration gasified coal water slurry |
| CN109576023A (en) * | 2017-09-29 | 2019-04-05 | 万华化学集团股份有限公司 | A kind of high-concentration coal-water slurry Preparation equipment and its method |
| CN109628178A (en) * | 2019-02-15 | 2019-04-16 | 陕西陕化煤化工集团有限公司 | A kind of method that rod mill prepares high-concentration coal-water slurry |
| CN110747023A (en) * | 2019-11-21 | 2020-02-04 | 河南心连心化学工业集团股份有限公司 | Comprehensive utilization system and comprehensive utilization method for coal water slurry |
-
2016
- 2016-06-28 CN CN201620658641.0U patent/CN205740928U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107267234A (en) * | 2017-06-16 | 2017-10-20 | 湖北宜化集团有限责任公司 | The water-coal-slurry for eliminating peculiar smell prepares processing system |
| CN109576023A (en) * | 2017-09-29 | 2019-04-05 | 万华化学集团股份有限公司 | A kind of high-concentration coal-water slurry Preparation equipment and its method |
| CN107699304A (en) * | 2017-10-17 | 2018-02-16 | 江苏秋林特能装备股份有限公司 | Domestic sludge is mixed with fuel coal water slurry complete set of equipments with raw coal |
| CN109536223A (en) * | 2018-11-07 | 2019-03-29 | 南京楠达环保科技有限公司 | A kind of preparation method and production equipment of high concentration gasified coal water slurry |
| CN109628178A (en) * | 2019-02-15 | 2019-04-16 | 陕西陕化煤化工集团有限公司 | A kind of method that rod mill prepares high-concentration coal-water slurry |
| CN110747023A (en) * | 2019-11-21 | 2020-02-04 | 河南心连心化学工业集团股份有限公司 | Comprehensive utilization system and comprehensive utilization method for coal water slurry |
| CN110747023B (en) * | 2019-11-21 | 2024-03-15 | 河南心连心化学工业集团股份有限公司 | Comprehensive utilization system and comprehensive utilization method for coal water slurry |
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