CN107737642A - The production line and its technique of a kind of flyash - Google Patents
The production line and its technique of a kind of flyash Download PDFInfo
- Publication number
- CN107737642A CN107737642A CN201711159922.7A CN201711159922A CN107737642A CN 107737642 A CN107737642 A CN 107737642A CN 201711159922 A CN201711159922 A CN 201711159922A CN 107737642 A CN107737642 A CN 107737642A
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- Prior art keywords
- flyash
- deduster
- raw material
- vertical mill
- mill
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
- B02C23/20—Adding fluid, other than for crushing or disintegrating by fluid energy after crushing or disintegrating
- B02C23/22—Adding fluid, other than for crushing or disintegrating by fluid energy after crushing or disintegrating with recirculation of material to crushing or disintegrating zone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
- B02C23/24—Passing gas through crushing or disintegrating zone
- B02C23/34—Passing gas through crushing or disintegrating zone gas being recirculated to crushing or disintegrating zone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
- B02C2015/002—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs combined with a classifier
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of production line of flyash and its technique, a kind of production line of flyash, it is characterized in that：Including raw material cabin, vertical mill and belt conveyer scale, raw material is sent into vertical mill by raw material cabin by belt conveyer scale；Vertical mill is connected by belt feeder with the charging aperture of the first elevator, and the discharging opening of the first elevator and the feeding mouth of vertical mill connect；Vertical mill is connected to hot-blast stove and deduster by pipeline, and deduster is connected with finished product collecting box by air conveyer flume.Cracked by these irregular particles in the technological process fly ash grain in the present invention, they are cracked, new spherical microballon can be discharged, form the smaller and fine and close particle of granularity, so that the water requiremen of flyash declines, activity significantly improves, and the quality of flyash is significantly improved.With technique is simplified, floor space is few, investment is small, power consumption be greatly lowered with service life length etc. beneficial effect.
Description
Technical field
The present invention relates to a kind of industrial technical field, specifically, the production line of more particularly to a kind of flyash and
Its technique.
Background technology
Application of the flyash in cement concrete, can not only save cement, reduce the production cost of concrete, moreover it is possible to
Improve workability of concrete and durability, be being preferably selected of being utilized to Ash Utilization.But because original state flyash is thin
Degree is thick, and early activity is relatively low, and water requirement is higher, and therefore, it is difficult to directly utilized in concrete, it is necessary to carries out at appropriate processing
Reason.
Existing to have two kinds to the major way that flyash is processed, one kind is sorted using powder concentrator, separately
One kind is that it is all levigate.Selected for first way and disclosure satisfy that the fine ash of concrete requirement only accounts for former ash
50% or so, remaining cinder also needs to after-treatment；For the second way, existing levigate processing method can not
The water requiremen of flyash is decreased obviously, makes activity relatively low, so as to cause the quality of flyash effectively to improve.
Therefore those skilled in the art are directed to developing the production line and its technique of a kind of flyash, can be effective
Activity is improved, so as to improve the quality of flyash.
The content of the invention
In view of the drawbacks described above of prior art, the technical problems to be solved by the invention are to provide a kind of life of flyash
Streamline and its technique are produced, activity can be effectively improved, so as to improve the quality of flyash.
To achieve the above object, the invention provides a kind of production line of flyash, including raw material cabin, vertical mill and
Raw material is sent into vertical mill by belt conveyer scale, raw material cabin by belt conveyer scale；The charging that vertical mill passes through belt feeder and the first elevator
Mouth connection, the discharging opening of the first elevator and the feeding mouth of vertical mill connect；Vertical mill is connected to hot-blast stove by pipeline
And deduster, deduster are connected with finished product collecting box by air conveyer flume.
Material is delivered in finished product collecting box in order to easily facilitate, the air conveyer flume carries by second
The machine of liter is connected with the charging aperture of the finished product collecting box.
It is sampled in order to personnel easy to operation, implements the sample preparation analysis to material, deduster and the second elevator
Between be provided with sampler.
In order to make the concentration of emission after dedusting be less than 30mg/m3Hereinafter, emission request is met, deduster is gas tank arteries and veins
Rush sack cleaner.
Noise is reduced while smoke discharging effect in order to improve in production, deduster is by there is blower fan to connect smoke evacuation chimney, wind
Machine is provided with muffler and is arranged in sound insulation house.
A kind of production technology of flyash, comprises the following steps：
Raw material is put into raw material cabin by step 1), and wherein the moisture weight percentage of wet fly-ash is≤35%, dried coal powder
The moisture weight percentage of ash is≤0.5%, and the moisture weight percentage of sand is 10%-20%；
Step 2) raw material is released by raw material cabin, and then carrying out metering rear screw by belt conveyer scale is delivered in vertical mill；
Raw material with mill rotation therefrom the heart to border movement, while by grinding roller extruding and grinding；
Step 3) starts hot-blast stove, and hot blast is fed through vertical mill by hot-blast stove by pipeline, and the flyash after grinding is being ground
Taken up at plate edge by the hot gas entered from vane；The fine powder being grated enters deduster, coarse powder after bringing pipeline into by waste gas
Return to mill and carry out grinding again；Go out to grind and air be discharged into by system fan after gas purification, a portion as circulated air again
Enter mill；
Step 4) is sampled detection to grinding；
Fine powder is delivered to finished product collecting box by step 5) deduster by air conveyer flume.
In order to further improve milling effect, the large granular materials that can not be taken up at vane by hot blast, through scum
Mouth enters external circulating system, reenters in vertical mill and is milled after iron removaling.
In order to make the concentration of emission after dedusting be less than 30mg/m3Hereinafter, emission request is met, deduster is gas tank arteries and veins
Rush sack cleaner.
Material is delivered in finished product collecting box in order to easily facilitate, air conveyer flume passes through the second elevator
Fine powder is delivered to finished product collecting box.
Noise is reduced while smoke discharging effect in order to improve in production, deduster is by there is blower fan to connect smoke evacuation chimney, institute
Stating assembling has muffler and is arranged in sound insulation house.
The beneficial effects of the invention are as follows：The present invention can effectively reduce technological process, while pass through the work in the present invention
Skill flow make it that these irregular particles in fly ash grain are cracked, and they are cracked.On the one hand can discharge new
Spherical microballon, increase the shape effect of flyash, after on the other hand these particles in irregular shape crush, it is smaller to form granularity
And fine and close particle, the result of these two aspects cause the water requiremen of flyash to decline, activity significantly improves, the quality of flyash
It is significantly improved.With technique is simplified, floor space is few, investment is small, power consumption be greatly lowered with service life length etc. have
Beneficial effect.
Brief description of the drawings
Fig. 1 is the schematic diagram of flyash production line.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples：
As shown in figure 1, a kind of production line of flyash, including raw material cabin 1, vertical mill 2 and belt conveyer scale 3, raw material cabin 1
Raw material is sent into vertical mill 2 by belt conveyer scale 3；Vertical mill 2 is connected by belt feeder with the charging aperture of the first elevator 5, the
The discharging opening of one elevator 5 is connected with the feeding mouth of vertical mill 2；Vertical mill 2 is connected to hot-blast stove 6 and dedusting by pipeline
Device 7, deduster 7 are connected with finished product collecting box 9 by air conveyer flume 8.
In the present embodiment, deduster 7 is connected with the second elevator 10 by air conveyer flume 8, the second elevator 10
Discharging opening is connected with the charging aperture of finished product collecting box 9.
The sampler of superfined flyash is located at before the second elevator 10, sampler sampling to sample cylinder, by manually will
Sample cylinder is sent to central control room and carries out sample preparation analysis.Sampler is provided between the elevator 10 of deduster 7 and second.
Deduster 7 is air box impulse bag-type dust remover.
By there is blower fan 11 to connect smoke evacuation chimney 12, blower fan 11 is provided with muffler and is arranged in sound insulation house deduster 7.This
In embodiment, flyash grinding system uses specification as TRMR25.21 roller mills, grinding wheel diameter 2500mm.
In the present embodiment, vertical mill 2 dries thermal source and comes from coal-fired hot-blast stove 6.The hot blast that hot-blast stove 6 is blown out is entered by pipeline
Enter vertical mill 2, material is oven-dried in mill while grinding, and because the ventilation of vertical mill 2 is big, drying capacity is strong, and material is not
Increase prebake equipment in the case of can grinding synthesis moisture≤25% coal ash mixed material.
The composition of original state flyash, except be mainly spherical microballon, some be the spherical flyash of cellular glass
The irregular particles such as microsphere, the adhesion body of spherical microballon and the spherical inclusion comprising microballon.Acted on by grinding, spherical particle
Smooth surface can produce certain cut, be advantageous to the raising of seed activity, while grinding is acted on and caused in fly ash grain
These irregular particles cracked, they are cracked.On the one hand new spherical microballon can be discharged, increases the shape of flyash
State effect, after on the other hand these particles in irregular shape crush.Form the smaller and fine and close particle of granularity, these two aspects
Result the water requiremen of flyash is declined, activity significantly improves, and the quality of flyash significantly improves.
A kind of production technology of flyash, comprises the following steps：
Raw material is put into raw material cabin 1 by step 1), and wherein the moisture weight percentage of wet fly-ash is≤35%, dried coal powder
The moisture weight percentage of ash is≤0.5%, and the moisture weight percentage of sand is 10%-20%；
Step 2) raw material is released by raw material cabin 1, and then carrying out metering rear screw by belt conveyer scale 3 is delivered to vertical mill 2
In；Roller type vertical mill is fed, material rotates with mill and moved under the influence of centrifugal force from center to edge in mill, and raw material is with mill
The heart extrudes and grinding to border movement, while by grinding roller therefrom for the rotation of disk；
In the present embodiment, raw material enters feeding bin by grab bucket.
Step 3) starts hot-blast stove 6, and hot blast is fed through vertical mill 2 by hot-blast stove 6 by pipeline, and the flyash after grinding exists
Mill edge is taken up by the hot gas entered from vane；The fine powder being grated enters deduster 7 after bringing pipeline into by waste gas, slightly
Powder returns to mill and carries out grinding again；Go out to grind and air is discharged into by system fan after gas purification, a portion is as circulated air
Reenter mill；
In the present embodiment, vertical mill 2 dry and divulge information need hot-air provided by hot-blast stove 6, insufficient section is by cold wind
Valve supplements from air.The big drying capacity of systematic air flow is strong, and mill feed material moisture is up to 10-18%.Noise is small, environment protection standard.
Noise and vibration are all very low when production line is run, blower fan apparatus sound insulation house and muffler Duplex treatment in addition, make be
System noise emissions are less than 60-70 decibels, completely can be with up to standard.
Step 4) is sampled detection to grinding；
Fine powder is delivered to finished product collecting box 9 by step 5) deduster 7 by air conveyer flume 8.
In the present embodiment, the large granular materials that can not be taken up at vane by hot blast enter external circulating system through scum mouth,
Reenter in vertical mill 2 and be milled after iron removaling.Deduster 7 is air box impulse bag-type dust remover.
Fine powder is delivered to finished product collecting box 9 by air conveyer flume 8 by the second elevator 10.
By there is blower fan 11 to connect smoke evacuation chimney 12, blower fan 11 is provided with muffler and is arranged in sound insulation house deduster 7.
In the present embodiment：
Flyash storehouse
Dry powder coal ash enters factory through Automobile Transportation, and being pumped into bank by air transporting arrangement (transport vehicle carries) stores, and sets 1
Seat Ф 15mm steel plates storehouse, reserves：2000t, unit weight are calculated by 0.7t/m3.Bottom storehouse design flow device, dry powder coal ash after metering with
The material arranged outside grinding machine is delivered to grinding in mill by elevator together
Flyash store and it is in bulk
This workshop sets 2 Ф 16mx25m steel plates storehouses, reserves：3100t, unit weight are calculated by 0.7t/m3.From grinding system
The superfined flyash of system is sent into warehouse for finished product and stored through bucket elevator, air conveyer flume.Aeration tank is set in storehouse, by Roots
Air blower supplies.Superfined flyash dispatches from the factory after device for discharging and bulk machine into tank car in storehouse.It is in bulk under Ku Ding and storehouse to examine
Worry is gathered dust, and dusty gas is discharged into air after bag collector purifies.
Air compressor plant
One air compressor plant is set, from two screw-rod air compressors, wherein one is standby, and ability 15m3/min, pressure
0.8MPa.The purified drying of gas after compression, gas source of the gas is used as pulse valve and instrument etc..
The flyash gone out by this technique productions meets《Flyash concrete application technology》
Fineness (the screen over-size % of 45um square hole screens)：≤ 20%；
Loss on ignition：≤ 8%；
Water demand ratio：≤ 105%；
SO3：≤ 3%.
It is as follows by flyash the key technical indexes produced by the invention and detection scheme：
Index
| Second class powered coal ash | Fineness≤20；Loss on ignition %≤8；Water requirement %≤105 | 300000 tons |
Detection scheme
1st, test method：
1.1 loss on ignition
1.11 experimental procedure
About 1g samples are weighed, are accurate to 0.0001g, is placed in the crucible of calcination constant, crucible cover is inclined in crucible
On, it is put into resistance furnace, temperature is adjusted in 950 DEG C -1000 DEG C, when being gradually increased to after temperature regulating, in 15-20 points of calcination
Clock, crucible is taken out, is placed in dry device and is cooled to room temperature, then weigh.
1.12 result of calculation
XloI=m7-m8/ms7 ※ 100
In formula：XloI is the mass percent (%) of loss on ignition.
M7 is the quality g of sample.
M8 is the quality g of the sample after calcination.
1.2 usage range
Suitable for the measure of fineness of pulverized-coal ash
1.21 instrument
Using there is air-flow screen analyzer, mainly wait until to form by sieve seat, sieve, vacuum source and dust-precipitator, by the use of air-flow as
The power and meson of screening, the airflow function sprayed by the nozzle of rotation make the granular material to be measured of screen cloth power be in fluidization,
And drop particle in the presence of whole system negative pressure and taken away by screen cloth, so as to reach the purpose of screening.
1.22 test procedure
1. weighing sample 50g, it is accurate to 0.1g and pours on 0.045mm square hole screen screen clothes, sieve is placed on sieve seat, on this
Screen cover.
2. switching on power, time switch is reached into 3min, starts screen analysis.
3. after starting working, observing vacuum table, when negative pressure is more than 2000pa, represent working properly, if negative pressure is less than
It during 2000pa, then should shut down, screen analysis is being carried out after clearing up the dust stratification in dust-precipitator.
4. during screen analysis, screen cover can be gently beaten with lightweight wooden stick or glue stick, to prevent absorption.
5. screen analysis is automatically stopped after 3min, the residue on sieve in screen cloth is collected and weighed after shutdown, accurately to 0.1g.
1.23 result of calculation
Percentage of sieve residue X (%) is calculated by formula
X=G ※ 2
In formula：G- residue on sieve weight.
1.3 water demand ratio
1.31 Method And Principle
This assay method is that determination test sample and comparative sample reach same fluidity 125-135mm respectively according to GB2419
The ratio between amount of water of scope.
1.32 sample
1. specimen sample：90g coal powders；210g silicate cements and 750g normal sands.
2. comparative sample：300g portland cements, 750g normal sands.
1.33 test procedure
1. carried out by GB2419, determine respectively water requirement W1 (mL) when the fluidity of specimen sample reaches 125-135 and
Comparative sample reaches the water requirement W2 (mL) during same fluidity.
1.34 result calculates
Flyash water demand ratio is calculated as follows：
Water requirement=W1/W2 ※ 100；Result of calculation round numbers.
1.4
Compression strength contrast in 28 days
1.41 Method And Principle
Cement mortar compressive strength rate is carried out by GB177, respectively the 28 days compression strength R1 and comparative sample of test sample
28 days compression strength R2.
1.42 prepared by sample
1. flyash
Water content is less than 1%；
Fineness (more than 0.080mm square hole screens) 5%-7%；
2. portland cement
Stability must be qualified
Compression strength is more than 42.5MPa；
Specific area 290-310m2/kg；
Gypsum incorporation (mixing outside) is calculated as 1.5%-2.5% with S03.
1.43 sample
1. test specimen：162g flyash, 378g silicate cements and 1350g mark sand.
2. comparative sample：540g portland cements and 1350 normal sands.
3. it is molded amount of water：Comparative sample 238ml, test specimen press water ash during flow of cement mortar 125-135mm
Than calculating.
1.44 test procedure
Carried out by GB177, respectively 28 days compression strength R2 of 28 days compression strength R1 and comparative sample of testing experiment sample.
1.45 result of calculation
The resistance to compression in 28 days of water of coal ash earth rubber sand is strengthened to be calculated as follows than (%)：
28 days compressive strength rates=R1/R2 ※ 10, as a result round numbers.
2 inspection rules
2.1 batchings and sampling
2.11 is a collection of with the flyash of 200t same levels without interruption.Discussed less than 200t person according to a collection of calculate, flyash
Quantity calculated by the weight of dry ash (water content be less than 1%).
2.12 sampling method
1. ash sampling in bulk：From means of transport.Deposit the different parts in grey storehouse or stockyard and take 15 parts of samples, every part of sample 1-
3kg, mixing is with, and by quartering, contracting is taken out is twice sample (offsetting as average sample) than experiment aequum.
2. packed ash sampling：Appoint from every batch and take out 10 bags, divide from every bag and materials no less than 1kg, mixed according to method 1.
Close contracting and take average sample.
2.13 random sampling
The flyash finished product of people's admixture when mixing cement mixed mud and mortar, if necessary, can be to the quality of flyash
Carry out random sampling.
The flyash come out by this technique productions can be used as following purposes：
1. powder ash air-entrained concrete.Powder ash air-entrained concrete is the materials for wall of new light thermal-insulation energy-conservation.Mainly
Raw material is flyash, accounts for 70% or so, other for lime, cement, gypsum, foaming agent etc., by these raw materials by processing dispensing,
Stir, pour into a mould, the processes such as thickening, cutting, steam press maintenance of getting angry are made.It can be used as roof heat insulation, safeguard wall, partition wall, also may be used
The load bearing wall that uppermost storey is five layers is done, is used especially suitable for skyscraper filling wall, the exterior wall of cold district and earthquake territory,
Wall weight can be mitigated, increase usable floor area.
2. coal powder concrete hollow brick.In recent years, coal powder concrete hollow brick development is very fast, its primary raw material
For flyash, gather materials, cement etc., raw material is made through processes such as batching, stirring, shaping, maintenances.In normal concrete building block
In light aggregate concrete building block, flyash can be also mixed, but add as admixture.And in coal ash concrete blocks,
Flyash is both admixture and fine aggregate, volume are higher.
3. cement, flyash expanded perlite concrete insulation blocks.Its technological process is substantially empty with flyash concrete
Heart building block is similar.Perlite building block has in light weight, good heat insulating, and has the features such as certain intensity, influence density with it is strong
The factor of degree has：The ratio of the volume of perlite, flyash and cement and the control of technological process.It can also add appropriate outer
Add agent, to improve block strength.
4. flyash concrete pavior brick.Flyash concrete pavior brick is matched somebody with somebody again using cement and flyash as mixing cementitious matter
With coarse aggregate etc., raw material through metering stirring, shaping, maintenance be made, change shaping mould can be made into square brick, chain pavior brick,
Antique Imitation Tiles, greening kind careless brick, curb block and other shapes of pavior brick etc..Shaping is using layering fabric, i.e. flyash concrete
Material and colored material, may also be fabricated which various colored pavior bricks.Flyash concrete pavior brick not only has Common Concrete Pavement
The advantages of brick and purposes, and it is in light weight, thermal conductivity factor is small, long-term behaviour is more preferable.For driveway, pavement, garden path,
Square, booth institute, building in the style of the ancients road, parking lot, bank protection and greening etc..
5. flyash brick.Using flyash, lime as primary raw material, proper amount of gypsum and aggregate are filled, is prepared through blank, suppressed
The flyash brick that shaping, high pressure or atmospheric steam curing form.Based on flyash, cement is used as main cementitious matter, through base
Material prepares, is compressing, and normal pressure steams note maintenance or natural curing and manufactured flyash brick.Utilize 85%-90% flyash
It is primary raw material with portions additive, agitated semi-hard plastic extrusion or half dry pressing mould brick base, is formed through burning non-clay
Fired fly ash brick.This brick has broken the boundary that 60% flyash is at most mixed in domestic and international fired brick.
6. lytag and concrete product.Haydite is a kind of artificial lightweight aggregate.Lytag is based on flyash
Raw material is wanted, processed balling-up, sinters or burns the swollen referred to as lytag formed.The non-burning of title formed through normal temperature or steam curing
Tie fly ash lightweight aggregate.Lytag can be used for the novel wall materials such as large-scale Side fascia and concrete segment.
7. flyash concrete light cellular partition board.Mainly on the basis of slight wallboard, part fine coal is added during dispensing
Ash produces slight partition plate, or produces slight wallboard with cement, flyash foam concrete.
The composition of original state flyash, except be mainly spherical microballon, some be the spherical flyash of cellular glass
The irregular particles such as microsphere, the adhesion body of spherical microballon and the spherical inclusion comprising microballon.Acted on by grinding, spherical particle
Smooth surface can produce certain cut, be advantageous to the raising of seed activity, while grinding is acted on and caused in fly ash grain
These irregular particles cracked, they are cracked.On the one hand new spherical microballon can be discharged, increases the shape of flyash
State effect, after on the other hand these particles in irregular shape crush.Form the smaller and fine and close particle of granularity, these two aspects
Result the water requiremen of flyash is declined, activity significantly improves, and the quality of flyash significantly improves.
Preferred embodiment of the invention described in detail above.It should be appreciated that one of ordinary skill in the art without
Creative work can is needed to make many modifications and variations according to the design of the present invention.Therefore, all technologies in the art
Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical scheme, all should be in the protection domain being defined in the patent claims.
Claims (10)
1. a kind of production line of flyash, it is characterized in that：It is described including raw material cabin (1), vertical mill (2) and belt conveyer scale (3)
Raw material is sent into the vertical mill (2) by raw material cabin (1) by the belt conveyer scale (3)；The vertical mill (2) by belt feeder with
The charging aperture connection of first elevator (5), the discharging opening of first elevator (5) connect with the feeding mouth of the vertical mill (2)
Connect；The vertical mill (2) is connected to hot-blast stove (6) and deduster (7) by pipeline, and the deduster (7) passes through air
Conveying skewed slot (8) is connected with finished product collecting box (9).
2. the production line of flyash as claimed in claim 1, it is characterized in that：The air conveyer flume (8) passes through
Two elevators (10) are connected with the charging aperture of the finished product collecting box (9).
3. the production line of flyash as claimed in claim 2, it is characterized in that：The deduster (7) carries with described second
Sampler is provided between the machine of liter (10).
4. the production line of flyash as claimed in claim 1, it is characterized in that：The deduster (7) is plenum pulse cloth bag
Formula deduster.
5. the production line of the flyash as described in Claims 1-4 is any, it is characterized in that：The deduster (7) is by having
Blower fan (11) connection smoke evacuation chimney (12), the blower fan (11) are provided with muffler and are arranged in sound insulation house.
6. a kind of production technology of flyash, it is characterized in that：Comprise the following steps：
Raw material is put into raw material cabin (1) by step 1), and wherein the moisture weight percentage of wet fly-ash is≤35%, dry powder coal ash
Moisture weight percentage be≤0.5%, the moisture weight percentage of sand is 10%-20%；
Step 2) raw material is released by raw material cabin (1), and then carrying out metering rear screw by belt conveyer scale (3) is delivered to vertical mill
(2) in；Raw material with mill rotation therefrom the heart to border movement, while by grinding roller extruding and grinding；
Step 3) starts hot-blast stove (6), and hot blast is fed through vertical mill (2) by hot-blast stove (6) by pipeline, the flyash after grinding
Taken up in mill edge by the hot gas entered from vane；The fine powder being grated enters deduster after bringing pipeline into by waste gas
(7), coarse powder returns to mill and carries out grinding again；Go out to grind and air, a portion conduct are discharged into by system fan after gas purification
Circulated air reenters mill；
Step 4) is sampled detection to grinding；
Fine powder is delivered to finished product collecting box (9) by step 5) deduster (7) by air conveyer flume (8).
7. the production technology of flyash as claimed in claim 6, it is characterized in that：Can not be taken up at vane by hot blast big
Grain material, enters external circulating system through scum mouth, reenters in vertical mill (2) and be milled after iron removaling.
8. the production technology of flyash as claimed in claim 6, it is characterized in that：The deduster (7) is air box impulse bag-type
Deduster.
9. the production technology of flyash as claimed in claim 6, it is characterized in that：The air conveyer flume (8) passes through second
Fine powder is delivered to finished product collecting box (9) by elevator (10).
10. the production technology of the flyash as described in claim 6 to 9 is any, it is characterized in that：The deduster (7) is by having
Blower fan (11) connection smoke evacuation chimney (12), the blower fan (11) are provided with muffler and are arranged in sound insulation house.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711159922.7A CN107737642A (en) | 2017-11-20 | 2017-11-20 | The production line and its technique of a kind of flyash |
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| CN201711159922.7A CN107737642A (en) | 2017-11-20 | 2017-11-20 | The production line and its technique of a kind of flyash |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109174409A (en) * | 2018-08-31 | 2019-01-11 | 江苏鹏飞集团股份有限公司 | The flyash System of Ultra Thin Power Rubbing that multiple stage circulation is processed and broken up in advance |
| CN110293117A (en) * | 2019-08-09 | 2019-10-01 | 黄石市四棵水泥厂 | The recycling and reusing device and technology of a kind of industrial solid waste in rotary kiln |
| CN110328036A (en) * | 2019-07-10 | 2019-10-15 | 南通万豪建材科技有限公司 | A kind of environment protecting cement production line and its production technology |
| CN111570023A (en) * | 2020-05-26 | 2020-08-25 | 镇江市蓝火环保能源有限公司 | Energy-saving and environment-friendly pulverized coal production system |
| CN112129607A (en) * | 2020-09-28 | 2020-12-25 | 青岛即墨中联水泥有限公司 | Device and process for manufacturing contrast cement base sample for detecting slag powder activity index |
| CN113457814A (en) * | 2021-06-22 | 2021-10-01 | 镇江市蓝火环保能源有限公司 | Coal powder treatment method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109174409A (en) * | 2018-08-31 | 2019-01-11 | 江苏鹏飞集团股份有限公司 | The flyash System of Ultra Thin Power Rubbing that multiple stage circulation is processed and broken up in advance |
| CN110328036A (en) * | 2019-07-10 | 2019-10-15 | 南通万豪建材科技有限公司 | A kind of environment protecting cement production line and its production technology |
| CN110293117A (en) * | 2019-08-09 | 2019-10-01 | 黄石市四棵水泥厂 | The recycling and reusing device and technology of a kind of industrial solid waste in rotary kiln |
| CN111570023A (en) * | 2020-05-26 | 2020-08-25 | 镇江市蓝火环保能源有限公司 | Energy-saving and environment-friendly pulverized coal production system |
| CN112129607A (en) * | 2020-09-28 | 2020-12-25 | 青岛即墨中联水泥有限公司 | Device and process for manufacturing contrast cement base sample for detecting slag powder activity index |
| CN112129607B (en) * | 2020-09-28 | 2022-10-28 | 青岛即墨中联水泥有限公司 | Device and process for manufacturing contrast cement base sample for detecting slag powder activity index |
| CN113457814A (en) * | 2021-06-22 | 2021-10-01 | 镇江市蓝火环保能源有限公司 | Coal powder treatment method |
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