CN107413188A - The slurries system and its pulping process of a kind of agstone slurrying - Google Patents
The slurries system and its pulping process of a kind of agstone slurrying Download PDFInfo
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- CN107413188A CN107413188A CN201710691816.7A CN201710691816A CN107413188A CN 107413188 A CN107413188 A CN 107413188A CN 201710691816 A CN201710691816 A CN 201710691816A CN 107413188 A CN107413188 A CN 107413188A
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- agstone
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- slurries
- slurry
- powder bin
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- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 title claims abstract description 201
- 239000002002 slurry Substances 0.000 title claims abstract description 142
- 238000000034 method Methods 0.000 title claims abstract description 43
- 238000004537 pulping Methods 0.000 title claims abstract description 30
- 235000019738 Limestone Nutrition 0.000 claims abstract description 107
- 239000006028 limestone Substances 0.000 claims abstract description 107
- 239000000843 powder Substances 0.000 claims abstract description 71
- 238000010521 absorption reaction Methods 0.000 claims abstract description 19
- 238000005516 engineering process Methods 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 239000004575 stone Substances 0.000 claims description 16
- 238000005243 fluidization Methods 0.000 claims description 11
- 235000013312 flour Nutrition 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 8
- 210000002966 serum Anatomy 0.000 claims description 8
- 238000001556 precipitation Methods 0.000 claims description 6
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 5
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 5
- 239000004571 lime Substances 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000005304 joining Methods 0.000 claims description 3
- HUAUNKAZQWMVFY-UHFFFAOYSA-M sodium;oxocalcium;hydroxide Chemical compound [OH-].[Na+].[Ca]=O HUAUNKAZQWMVFY-UHFFFAOYSA-M 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 1
- 238000006477 desulfuration reaction Methods 0.000 abstract description 8
- 239000007788 liquid Substances 0.000 abstract description 7
- 230000023556 desulfurization Effects 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 5
- 238000000227 grinding Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000000498 ball milling Methods 0.000 description 5
- 238000007599 discharging Methods 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- RAHZWNYVWXNFOC-UHFFFAOYSA-N sulfur dioxide Inorganic materials O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 5
- 239000002245 particle Substances 0.000 description 4
- 238000005303 weighing Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 108010066114 cabin-2 Proteins 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/504—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/502—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific solution or suspension
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paper (AREA)
Abstract
The invention belongs to thermal power plant's environmental technology field, the slurries system and its pulping process of a kind of agstone slurrying are disclosed, grinding machine is solved and grinds lime stone pulping system and grind the problems such as powder fineness is big, and equipment power consumption is high, fault rate is high, to start the time long.The slurries system includes limestone powder bin, fluidized air blower, agstone batcher, agstone slurry tank, agstone slurries box mixer, slurry supply pump and absorption tower, the side connection fluidized air blower of limestone powder bin, the bottom connection agstone batcher of limestone powder bin, the feed opening connection agstone slurry tank of agstone batcher, the slurries in limestone slurry liquid case convey slurries by slurry supply pump toward absorption tower.The invention simplifies the equipment and slurrying flow of lime stone pulping system, reduces the construction costs of equipment, reduces cost of equipment maintenance and desulfurization slurrying power consumption, improves the stability, economy and reliability of desulphurization system.
Description
Technical field
The present invention relates to thermal power plant's environmental technology field, more particularly to heat-engine plant desulfurized pulping system, and in particular to a kind of
The slurries system and its pulping process of agstone slurrying.
Background technology
At present in coal steam-electric plant smoke Wet Limestone Desulfurization system, the slurries of lime stone pulp feeding system generally use ball mill
The mode that lime stone carries out slurrying is ground, the pulping system equipment is more, system complex, fault rate are high, consumption rate is high, and slurrying is set
It is standby to start time length, and CaCO in slurries3 The fineness of particle is had a great influence by factors such as steel ball size, steel ball matchings, CaCO3
Grain fineness is exceeded, directly affects and SO2The adequacy of chemical reaction, influence the slurry in desulfuration efficiency, desulfurization power consumption and absorption tower
Liquid quality.
Publication date is on July 4th, 2017, in Publication No. 206296047U Chinese patent, discloses a kind of lime stone
Refining system, including limestone wet ball mill, limestone wet ball mill one end simultaneously with Weighing feeder, technique water tank and
Lime stone slurry rotational flow station respectively by being fed conveyer belt, process water conveyance conduit regrind pipeline with lime stone and be connected, the other end
It is connected by conveyance conduit one with grinding machine recycling tank, grinding machine recycling tank passes through conveyance conduit two and lime stone slurry rotational flow station
Connection, conveyance conduit two are provided with grinding machine recirculation pump, and lime stone slurry rotational flow station passes through limestone slurry with limestone slurry liquid case
Liquid pipeline communication, lime stone regrind pipeline corner and are provided with baffle-box.In the patent, using wet ball-milling method slurrying, the slurrying
System equipment is more, system complex, fault rate are high, power consumption is high, and pulping equipment starts time length, and CaCO in slurries3 Particle it is thin
Degree is had a great influence by factors such as steel ball size, steel ball matchings.
Publication date is on October 12nd, 2016, in Publication No. CN106000560A Chinese patent, discloses a kind of stone
The pulping system of lime stone slurries, in the pulping system, limestone dump skip discharging opening is connected with oscillating feeder feed end, is shaken
Dynamic batcher discharge end is connected with bucket lifting machine inlet, and bucket elevator discharging opening is connected with lime stone warehouse charging aperture,
Belt weighing batcher charging aperture is connected with lime stone warehouse discharging opening, and belt weighing batcher discharging opening enters with wet ball mill
Material mouth connects, and wet ball mill discharging opening at the top of grinder slurry circulating box with being connected, grinder slurry circulating box bottom and lime stone
Cyclone charging aperture is connected, and the overfall of lime stone cyclone is connected with lime stone slurry box top, lime stone cyclone underflow
Mouth is connected with wet ball mill feed mouth.In the patent, and wet ball-milling method slurrying is used, it is same to have the one of ball milling slurrying
Number of disadvantages.
The content of the invention
Grind that to grind agstone fineness existing for lime stone pulping system big to solve grinding machine, equipment power consumption is high, failure
The problems such as rate is high, the startup time is long, the present invention provides a kind of the slurries system and its pulping process of agstone slurrying.
The technical scheme of the slurries system of agstone slurrying in the present invention is：A kind of slurries system of agstone slurrying
System, including the stirring of limestone powder bin, fluidized air blower, agstone batcher, agstone slurry tank, agstone slurry tank
Device, slurry supply pump and absorption tower, the limestone powder bin are provided with level-sensing device, are connected with the top of the limestone powder bin into powder
Pipe, agstone tank car convey pulverized limestone at powder inlet pipe by compressed air to limestone powder bin, the limestone powder bin
Fluidisation airduct is internally provided with, the entrance of the fluidisation airduct is provided with fluidisation aerofoil, the side connection of the limestone powder bin
Fluidized air blower, the bottom connection agstone batcher of the limestone powder bin, the motor control of the agstone batcher
Cabinet is provided with frequency converter, and the feed opening of the agstone batcher is connected with agstone slurry tank, and the agstone is given
The porch of material machine is provided with lock gate hatch, the top Joining Technology waterpipe of the agstone slurry tank, the technique water pipe
Road is provided with flowmeter, and technique penstock, the lime stone are provided between the agstone slurry tank and technique waterpipe
The agitating paddle of slurry liquid case agitator is located at the inside of agstone slurry tank, and the agstone slurry tank is provided with density
Meter, the bottom connection slurry supply pump of the agstone slurry tank, the outlet conduit of the slurry supply pump are connected with absorption tower, the stone
The serum density of the inside of limestone flour slurry tank is no more than 1.3g/L.The slurries system of the agstone slurrying, simplifies stone
The equipment and slurrying flow of lime stone pulping system, reduce the construction costs of equipment, reduce cost of equipment maintenance and desulfurization system
Power consumption is starched, system operation is smooth, it is rapid to start.The setting of level-sensing device, the space availability ratio of limestone powder bin is conveniently checked, is helped
In controlling the powder amount in limestone powder bin, avoid the disconnected powder of limestone powder bin or buy securities with all one's capital；The setting of aerofoil is fluidized, stone can be prevented
Limestone flour blocks fluidisation airduct；The setting of frequency converter, it is easy to control the powder-feeding amount of agstone batcher；The setting of lock gate hatch,
It is easy to isolate agstone batcher；The setting of flowmeter, it is easy to be adjusted according to the rotating speed of agstone batcher in time
The water injection rate of whole process water；The setting of densitometer, it is easy to monitor the serum density in agstone slurry tank in real time.
The slurries system of the agstone slurrying, the fluidized air blower are continuously run.Fluidized air blower is continuously run, and can be prevented
Only agstone is hardened in limestone powder bin, lumps.
The slurries system of the agstone slurrying, the agstone batcher are continuously run.Agstone batcher
Continuous operation, can avoid accumulated powder bite.
The slurries system of the agstone slurrying, the agstone slurries box mixer are continuously run.Agstone
Slurries box mixer is continuously run, and can avoid slurries alluvial precipitation in agstone slurry tank.
The slurries system of the agstone slurrying, the agstone batcher are exported to agstone slurry tank
The distance between the technique waterpipe at top is more than 50cm.Therebetween distance is more than 50cm, water evaporation can be avoided to cause
Agstone is hardened, blocks the feed opening of agstone batcher.
The quantity of the agstone batcher is two, wherein one is standby agstone batcher.
The technical scheme of the pulping process of agstone is in the present invention：A kind of pulping process of agstone, utilizes institute
State the slurries system of agstone slurrying, it is as follows the step of the pulping process of the agstone：
Step 1, the powder inlet pipe that agstone tank car is connected by the top of limestone powder bin, gives stone under the transmission of compressed air
Lime stone powder cabin conveys agstone, is observed by the level-sensing device of limestone powder bin in limestone powder bin and deposits powder amount, it is ensured that lime
The material position in stone flour storehouse maintains the 1/3 to 2/3 of agstone holding capacity of bin, and fluidized air blower, which is continuously run, ensures stone in limestone powder bin
The mobility of limestone flour；
Step 2, the lock gate hatch of agstone batcher entrance is opened, starts agstone batcher, agstone is sent to
Agstone slurry tank, continuously operation to avoid accumulating agstone bite, passes through agstone batcher to agstone batcher
Motor inverter control agstone batcher motor rotating speed, adjust agstone batcher powder-feeding amount；
Step 3, technique penstock is opened, opens agstone slurries box mixer, agstone and process water are in agstone
Lime stone slurry is made under the stirring of slurries box mixer, agstone slurries box mixer is continuously run, and avoids agstone
Slurries alluvial precipitation, adjusts the feeding speed of agstone batcher and the flow of process water in slurry tank, controls agstone
Serum density in slurry tank is no more than 1.3g/L；
Step 4, when absorption tower is needed for slurry, start slurry supply pump, lime stone slurry is delivered to absorption tower, to ensure absorption tower
Interior pH value is in normal range (NR).
Purity >=90% of the agstone, MgO mass fraction ＜ 0.78% in the agstone.
The fineness of the agstone is 200~325 mesh, and the agstone tails over rate≤10%.
The present invention has advantages below and effect compared with prior art：The invention simplifies setting for lime stone pulping system
Standby and slurrying flow, eliminates lime stone bucket elevator, lime stone belt conveyor, lime stone ball mill, lime stone ball milling machine oil
The substantial equipment such as stand, reduce the construction costs of equipment；Eliminate lime stone storage place, lime stone belt transport room, lime
The land resources such as stone ball milling computer room, ball mill steel ball storage place, save place space；After pulping equipment is reduced, reduce
Power consumption during cost of equipment maintenance and pulping equipment operation, reaches the effect of energy-conservation, effectively reduces the daily cost of enterprise；System
Lime stone slurry in limestone particle evenly, fineness it is smaller, without macro aggregate, the quality of the lime stone slurry of gained is more
It is excellent so that sulfur dioxide and calcium carbonate reaction are more abundant, so as to reduce the discharge of sulfur dioxide in flue gas；Pulping equipment and it is
System greatly simplifies, and system operation is smooth, starts rapid, simple to operate, efficiency high；It can be avoided in the past by raw material of agstone
In pulping process the problems such as the blocking of lime stone, wear equipment, the stability and reliability of desulphurization system are improved.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the slurries system of agstone slurrying in invention.
In accompanying drawing, 1, agstone tank car, 2, limestone powder bin, 3, fluidized air blower, 4, agstone slurries box mixer,
5th, technique penstock, 6, agstone batcher, 7, agstone slurry tank, 8, slurry supply pump, 9, absorption tower.
Embodiment
It is described in further detail, implements below below in conjunction with the accompanying drawings and by embodiment to technical scheme
Example is explanation of the invention and the invention is not limited in following examples.
Embodiment.
Referring to Fig. 1, the invention discloses a kind of slurries system of agstone slurrying, in the present embodiment, a kind of lime stone
The slurries system of powder slurrying, including limestone powder bin 2, fluidized air blower 3, agstone batcher 6, agstone slurry tank 7, stone
Limestone flour slurries box mixer 4, slurry supply pump 8 and absorption tower 9, the limestone powder bin 2 are provided with level-sensing device, the agstone
The top in storehouse 2 is connected with powder inlet pipe, and agstone tank car 1 conveys stone at powder inlet pipe by compressed air to limestone powder bin 2
Ashes, the limestone powder bin 2 are internally provided with fluidisation airduct, and the entrance of the fluidisation airduct is provided with fluidisation aerofoil, institute
State the side connection fluidized air blower 3 of limestone powder bin 2, the bottom connection agstone batcher 6 of the limestone powder bin 2, institute
The motor controlling cabinet for stating agstone batcher 6 is provided with frequency converter, the feed opening and lime stone of the agstone batcher 6
Slurry liquid case 7 connects, and the porch of the agstone batcher 6 is provided with lock gate hatch, the top of the agstone slurry tank 7
Portion's Joining Technology waterpipe, the process water Pipe installing have a flowmeter, the agstone slurry tank 7 and technique waterpipe it
Between be provided with technique penstock 5, the agitating paddle of the agstone slurries box mixer 4 is located at the interior of agstone slurry tank 7
Portion, the agstone slurry tank 7 are provided with densitometer, and the bottom connection slurry supply pump 8 of the agstone slurry tank 7 is described
The outlet conduit of slurry supply pump 8 is connected with absorption tower 9, and the serum density of the inside of the agstone slurry tank 7 is no more than 1.3g/
L.The slurries system of the agstone slurrying, the equipment and slurrying flow of lime stone pulping system are simplified, reduces equipment
Construction costs, reduce cost of equipment maintenance and desulfurization slurrying power consumption, system operation is smooth, it is rapid to start.Level-sensing device is set
Put, conveniently check the space availability ratio of limestone powder bin 2, help to control the powder amount in limestone powder bin 2, avoid lime stone
Powder cabin 2, which is broken, powder or buys securities with all one's capital；The setting of aerofoil is fluidized, can prevent agstone from blocking fluidisation airduct；The setting of frequency converter, is easy to
Control the powder-feeding amount of agstone batcher 6；The setting of lock gate hatch, it is easy to isolate agstone batcher 6；Flowmeter
Setting, be easy in time according to the water injection rate of the adjustment of rotational speed process water of agstone batcher 6；The setting of densitometer, is easy to
Serum density in agstone slurry tank 7 is monitored in real time.
In the present embodiment, the fluidized air blower is continuously run.Fluidized air blower is continuously run, and agstone can be prevented in lime
Hardened in stone flour storehouse 2, caking.
In the present embodiment, the agstone batcher 6 is continuously run.Agstone batcher 6 is continuously run, and can be avoided
Accumulated powder bite.
In the present embodiment, the agstone slurries box mixer 4 is continuously run.Agstone slurries box mixer 4 connects
Reforwarding row, slurries alluvial precipitation in agstone slurry tank 7 can be avoided.
In the present embodiment, the technique water pipe at the top for being exported to agstone slurry tank 7 of the agstone batcher 6
The distance between road is more than 50cm.Therebetween distance is more than 50cm, and water evaporation can be avoided to cause agstone hardened, blocks up
Fill in the feed opening of agstone batcher 6.
In the present embodiment, the quantity of the agstone batcher 6 is two, wherein one is standby agstone and is fed
Machine 6.
The invention also discloses a kind of pulping process of agstone, in the present embodiment, the agstone slurrying is utilized
Slurries system, it is as follows the step of the pulping process of the agstone：
Step 1, the powder inlet pipe that agstone tank car 1 is connected by the top of limestone powder bin 2, gives under the transmission of compressed air
Limestone powder bin 2 conveys agstone, is observed by the level-sensing device of limestone powder bin 2 in limestone powder bin 2 and deposits powder amount, it is ensured that
The material position of limestone powder bin 2 maintains the 1/3 to 2/3 of the capacity of limestone powder bin 2, and continuously operation ensures lime stone to fluidized air blower 3
The mobility of the sodalime stone flour of powder cabin 2；
Step 2, the lock gate hatch of the entrance of agstone batcher 6 is opened, starts agstone batcher 6, agstone is transmitted
To agstone slurry tank 7, agstone batcher 6 continuously to avoid accumulating agstone bite, by agstone given by operation
The rotating speed of the motor of the motor inverter control agstone batcher 6 of material machine 6, the powder-feeding amount of adjustment agstone batcher 6；
Step 3, technique penstock is opened, opens agstone slurries box mixer 4, agstone and process water are in agstone
Lime stone slurry is made under the stirring of slurries box mixer 4, agstone slurries box mixer 4 is continuously run, and avoids lime stone
Slurries alluvial precipitation in slurry liquid case 7, the feeding speed of adjustment agstone batcher 6 and the flow of process water, control lime
Serum density in stone flour slurry tank 7 is no more than 1.3g/L；
Step 4, when absorption tower 9 is needed for slurry, start slurry supply pump 8, lime stone slurry defeated 7 is delivered into absorption tower 9, to ensure to inhale
The pH value in tower 9 is received in normal range (NR).
In the present embodiment, purity >=90% of the agstone, MgO mass fraction ＜ in the agstone
0.78%。
In the present embodiment, the fineness of the agstone is 200~325 mesh, and the agstone tails over rate≤10%.
The pulping process of the agstone, limestone particle is uniform in obtained lime stone slurry, fineness is small, no agglomerate
Aggressiveness, slurries quality and desulfuration efficiency in absorption tower are favorably improved, reduce desulfurization power consumption, improve the stabilization of desulphurization system
Property, economy and reliability.
Furthermore, it is necessary to illustrate, the specific embodiment, its part named title etc. described in this specification can not
Together, the combination between its part can be converted rationally, and the above content described in this specification is only to the present invention
Example explanation.The equivalence changes or letter that all construction, feature and principles according to described in inventional idea of the present invention are done
Altered, it is included in the protection domain of patent of the present invention.Those skilled in the art can be to being retouched
The specific embodiment stated is made various modifications or supplement or substituted using similar mode, without departing from the knot of the present invention
Structure surmounts scope defined in the claims, all should belong to protection scope of the present invention.
Claims (9)
1. a kind of slurries system of agstone slurrying, it is characterised in that including limestone powder bin, fluidized air blower, agstone
Batcher, agstone slurry tank, agstone slurries box mixer, slurry supply pump and absorption tower, the limestone powder bin installation
There is level-sensing device, powder inlet pipe is connected with the top of the limestone powder bin, agstone tank car is by compressed air at powder inlet pipe
Pulverized limestone is conveyed to limestone powder bin, the limestone powder bin is internally provided with fluidisation airduct, the entrance of the fluidisation airduct
Fluidisation aerofoil, the side connection fluidized air blower of the limestone powder bin, the bottom connection lime of the limestone powder bin are installed
Stone flour batcher, the motor controlling cabinet of the agstone batcher are provided with frequency converter, under the agstone batcher
Material mouth is connected with agstone slurry tank, and the porch of the agstone batcher is provided with lock gate hatch, the agstone
The top Joining Technology waterpipe of slurry tank, the process water Pipe installing have flowmeter, the agstone slurry tank and work
Technique penstock is provided between skill waterpipe, the agitating paddle of the agstone slurries box mixer is located at agstone slurries
The inside of case, the agstone slurry tank are provided with densitometer, the bottom connection slurry supply pump of the agstone slurry tank, institute
The outlet conduit for stating slurry supply pump is connected with absorption tower, and the serum density of the inside of the agstone slurry tank is no more than 1.3g/
L。
2. the slurries system of agstone slurrying according to claim 1, it is characterised in that the fluidized air blower is continuously transported
OK, prevent that agstone is hardened in limestone powder bin, lumps.
3. the slurries system of agstone slurrying according to claim 1, it is characterised in that the agstone batcher
Continuous operation, avoids lime stone accumulated powder bite.
4. the slurries system of agstone slurrying according to claim 1, it is characterised in that the agstone slurry tank
Agitator is continuously run, and avoids slurries alluvial precipitation in agstone slurry tank.
5. the slurries system of agstone slurrying according to claim 1, it is characterised in that the agstone batcher
The distance between the technique waterpipe at the top for being exported to agstone slurry tank be more than 50cm.
6. the slurries system of agstone slurrying according to claim 1, it is characterised in that the agstone batcher
Quantity be two, wherein one is standby agstone batcher.
7. a kind of pulping process of agstone, it is characterised in that using described in any claim in claim 1 to 6
The slurries system of agstone slurrying is as follows the step of the pulping process of the agstone：
Step 1, the powder inlet pipe that agstone tank car is connected by the top of limestone powder bin, gives stone under the transmission of compressed air
Lime stone powder cabin conveys agstone, is observed by the level-sensing device of limestone powder bin in limestone powder bin and deposits powder amount, observes material position
The reading of meter, it is ensured that the material position of limestone powder bin maintains the 1/3 to 2/3 of agstone holding capacity of bin, and fluidized air blower is continuously run
Ensure the mobility of limestone powder bin sodalime stone flour；
Step 2, the lock gate hatch of agstone batcher entrance is opened, starts agstone batcher, agstone is sent to
Agstone slurry tank, continuously operation to avoid accumulating agstone bite, passes through agstone batcher to agstone batcher
Motor inverter control agstone batcher motor rotating speed, adjust agstone batcher powder-feeding amount；
Step 3, technique penstock is opened, opens agstone slurries box mixer, agstone and process water are in agstone
Lime stone slurry is made under the stirring of slurries box mixer, agstone slurries box mixer is continuously run, and avoids agstone
Slurries alluvial precipitation, adjusts the feeding speed of agstone batcher and the flow of process water in slurry tank, controls agstone
Serum density in slurry tank is no more than 1.3g/L；
Step 4, when absorption tower is needed for slurry, start slurry supply pump, lime stone slurry is delivered to absorption tower, to ensure absorption tower
Interior pH value is in normal range (NR).
8. the pulping process of agstone according to claim 7, it is characterised in that the purity of the agstone >=
90%, MgO mass fraction ＜ 0.78% in the agstone.
9. the pulping process of agstone according to claim 7, it is characterised in that the fineness of the agstone is
200~325 mesh, the agstone tail over rate≤10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710691816.7A CN107413188A (en) | 2017-08-14 | 2017-08-14 | The slurries system and its pulping process of a kind of agstone slurrying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710691816.7A CN107413188A (en) | 2017-08-14 | 2017-08-14 | The slurries system and its pulping process of a kind of agstone slurrying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107413188A true CN107413188A (en) | 2017-12-01 |
Family
ID=60438137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710691816.7A Pending CN107413188A (en) | 2017-08-14 | 2017-08-14 | The slurries system and its pulping process of a kind of agstone slurrying |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111514771A (en) * | 2020-06-17 | 2020-08-11 | 河北化工医药职业技术学院 | Intelligent optimization system of limestone slurry production line |
| CN113842770A (en) * | 2021-11-15 | 2021-12-28 | 华能沁北发电有限责任公司 | Slurry melting system for flue gas desulfurization process |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728214A (en) * | 2012-07-25 | 2012-10-17 | 天津市电力公司 | Intelligent control method for preparing limestone slurry |
| CN204911242U (en) * | 2015-07-31 | 2015-12-30 | 东莞理文造纸厂有限公司 | Lime stone thick liquid preparation system |
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- 2017-08-14 CN CN201710691816.7A patent/CN107413188A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728214A (en) * | 2012-07-25 | 2012-10-17 | 天津市电力公司 | Intelligent control method for preparing limestone slurry |
| CN204911242U (en) * | 2015-07-31 | 2015-12-30 | 东莞理文造纸厂有限公司 | Lime stone thick liquid preparation system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111514771A (en) * | 2020-06-17 | 2020-08-11 | 河北化工医药职业技术学院 | Intelligent optimization system of limestone slurry production line |
| CN113842770A (en) * | 2021-11-15 | 2021-12-28 | 华能沁北发电有限责任公司 | Slurry melting system for flue gas desulfurization process |
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