CN108129002A - The sugared mud of suspension sintering method processing realizes the method and device that fining agent recycles - Google Patents
The sugared mud of suspension sintering method processing realizes the method and device that fining agent recycles Download PDFInfo
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- CN108129002A CN108129002A CN201810145924.9A CN201810145924A CN108129002A CN 108129002 A CN108129002 A CN 108129002A CN 201810145924 A CN201810145924 A CN 201810145924A CN 108129002 A CN108129002 A CN 108129002A
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- mill mud
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- 239000000725 suspension Substances 0.000 title claims abstract description 69
- 238000000034 method Methods 0.000 title claims abstract description 62
- 238000012545 processing Methods 0.000 title claims abstract description 17
- 239000006025 fining agent Substances 0.000 title claims abstract description 8
- 238000005245 sintering Methods 0.000 title claims abstract description 8
- 239000004571 lime Substances 0.000 claims abstract description 77
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 71
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 71
- 238000005261 decarburization Methods 0.000 claims abstract description 60
- 239000000463 material Substances 0.000 claims abstract description 44
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Substances [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 35
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 26
- 238000001816 cooling Methods 0.000 claims abstract description 23
- 238000001354 calcination Methods 0.000 claims abstract description 22
- 239000000920 calcium hydroxide Substances 0.000 claims abstract description 20
- 239000002245 particle Substances 0.000 claims abstract description 20
- 235000011116 calcium hydroxide Nutrition 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000010521 absorption reaction Methods 0.000 claims abstract description 8
- 238000001556 precipitation Methods 0.000 claims abstract description 8
- 239000006227 byproduct Substances 0.000 claims abstract description 7
- 239000000356 contaminant Substances 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims description 26
- 238000000354 decomposition reaction Methods 0.000 claims description 22
- 238000003860 storage Methods 0.000 claims description 15
- 239000000843 powder Substances 0.000 claims description 14
- 239000006188 syrup Substances 0.000 claims description 11
- 235000020357 syrup Nutrition 0.000 claims description 11
- 238000003825 pressing Methods 0.000 claims description 10
- 235000010216 calcium carbonate Nutrition 0.000 claims description 8
- 239000012535 impurity Substances 0.000 claims description 8
- 238000002485 combustion reaction Methods 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 7
- 238000009923 sugaring Methods 0.000 claims description 7
- 239000000706 filtrate Substances 0.000 claims description 6
- 238000010304 firing Methods 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 6
- 235000011389 fruit/vegetable juice Nutrition 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 230000001112 coagulating effect Effects 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 2
- 238000005262 decarbonization Methods 0.000 claims 1
- 238000007599 discharging Methods 0.000 claims 1
- 238000003912 environmental pollution Methods 0.000 abstract description 8
- 238000004064 recycling Methods 0.000 abstract description 7
- 239000002910 solid waste Substances 0.000 abstract description 6
- 101100399296 Mus musculus Lime1 gene Proteins 0.000 description 52
- 229910002092 carbon dioxide Inorganic materials 0.000 description 40
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 16
- 239000007789 gas Substances 0.000 description 11
- 239000004568 cement Substances 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 8
- 125000004122 cyclic group Chemical group 0.000 description 5
- 239000003337 fertilizer Substances 0.000 description 5
- 235000019738 Limestone Nutrition 0.000 description 4
- 239000011575 calcium Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000006028 limestone Substances 0.000 description 4
- 238000003763 carbonization Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- PVCRZXZVBSCCHH-UHFFFAOYSA-N ethyl n-[4-[benzyl(2-phenylethyl)amino]-2-(4-phenoxyphenyl)-1h-imidazo[4,5-c]pyridin-6-yl]carbamate Chemical compound N=1C(NC(=O)OCC)=CC=2NC(C=3C=CC(OC=4C=CC=CC=4)=CC=3)=NC=2C=1N(CC=1C=CC=CC=1)CCC1=CC=CC=C1 PVCRZXZVBSCCHH-UHFFFAOYSA-N 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 238000007781 pre-processing Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 241000533901 Narcissus papyraceus Species 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- CZMRCDWAGMRECN-UHFFFAOYSA-N Rohrzucker Natural products OCC1OC(CO)(OC2OC(CO)C(O)C(O)C2O)C(O)C1O CZMRCDWAGMRECN-UHFFFAOYSA-N 0.000 description 1
- 235000007201 Saccharum officinarum Nutrition 0.000 description 1
- 240000000111 Saccharum officinarum Species 0.000 description 1
- 235000010210 aluminium Nutrition 0.000 description 1
- HIVLDXAAFGCOFU-UHFFFAOYSA-N ammonium hydrosulfide Chemical compound [NH4+].[SH-] HIVLDXAAFGCOFU-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 239000011859 microparticle Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000002425 soil liming agent Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/10—Treatment of sludge; Devices therefor by pyrolysis
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/18—Carbonates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
The sugared mud of suspension sintering method processing realizes the method and device that fining agent recycles：Sugar mill mud is pre-processed first, then treated material metering and suspension preheating device will be transported to, it is preheated after material reenter suspension decomposer CaCO occur3It decomposes；It is conducted into depth decarburization device later and completes depth decarburization, generates high-temperature lime；It is cooled down again by fluidized suspension cooling device to get powdery active lime；By-product CO2For the CO needed for full charge process2.Powdery active lime obtained adds water that milk of lime is made, then is mixed, then the full charge CO into mixed liquor with raw sugar solution2, form CaCO3Particle, particle adsorbing contaminant form paste precipitation, as sugar mill mud.The present invention realizes the calcination/carbonation cycle and CO of sugar mill mud/powdered lime2The cycle of effusion/absorption realizes recycling for sugar mill mud, the problem of environmental pollution for solving solid waste sugar mill mud.
Description
First, technical field
The present invention relates to solid waste sugar mill muds to reprocess field, and juice,liming agent of more particularly to refining sugar recycles neck
Domain, Cyclic Calcination/carbonation reaction of specifically a kind of sugar mill mud/powdered lime, and with CO2It is anti-to recycle effusion/absorption
The method and apparatus answered.
Background technology
So far, the method for sugar industry juice,liming has lime method, carbonatation process and sulfurous method etc., wherein, carbonatation process
Removable non-glucide is more, and the sugared rate of recovery is higher, and the purity of finished product sugar is high, and coloration is low, and can store long constant
Color is ideal syrup clarifying method.
The fining agent that carbonatation process sugaring uses is lime（Also known as calcareous fining agent）And CO2, during operation, added in syrup
Milk of lime, while it is filled with CO2Full charge, the lime and CO of milk of lime2Reaction generation calcium carbonate microparticle, while adsorbing contaminant formation
Paste precipitates, and the precipitation of generation is referred to as sugar mill mud, abbreviation filter mud.
Sugar mill mud belongs to the solid waste of sugar industry discharge, and quantity is big, and processing is difficult, has data to show, in original
Sugared sugar manufacturing industry often produces 1 ton of sugar and will be about 0.1 ton of filter mud waste residue of discharge, and in sugarcane or beet sugar manufacturing industry, discharge is given up
Slag is more, and a large amount of filter mud waste residue direct emission causes environmental pollution, how to solve the problem of environmental pollution of sugar mill mud,
It is that sugar manufacturing industry expectation solves the problems, such as.
The content of the CaO of butt sugar mill mud is about 50%, and the content of the organic matters such as raw sugar, reduced sugar is about 1.67%, and
Containing impurity such as other siliceous, aluminums, magnesia, irony compounds, material particular diameter is usually in 0.05mm or so.With natural lime
Stone compares, sugar mill mud except containing a small amount of organic matter in addition to, ingredient very close to.
The processing of sugar mill mud has certain limitation, and at present, only small part filter mud is used as cement plant, building block factory
The raw material of factories is waited, the overwhelming majority is allowed to stand for stacking or fill, and is both the burden of enterprise, is also important problem of environmental pollution.
It is specific as follows：
（1）The content of the inorganic matters such as the CaO of raw material butt sugar mill mud as cement processed and the stone matter raw material for producing cement are big
It causes identical, may be used as substituting and produce the stone matter raw material of cement.But flood tide demand of the cement industry to raw limestone is compared,
Sugar mill mud seems insignificant again, is not enough to the investment interest for causing cement industry, and influenced by transportation radius, is not institute
Some sugar mill muds can be used for making cement, and in recent years, and the industries excess capacity such as cement, factory's utilization of capacity is insufficient, sugaring
Filter mud is used for manufacture of cement, and there is certain difficulties for operability.
（2）There is certain practical value by the use of sugar mill mud as composite fertilizer material for making organic-inorganic composite fertilizer,
But since the calcium carbonate content in carbonatation process filter mud is too high, the beneficiating ingredients content such as nitrogen, phosphorus, potassium is very little, and fertilizer efficiency is not high, and filters
The drying of mud needs to put into higher expense, and compared with common agricultural composite fertilizer, commercial value is not high.
（3）As the calcium carbonate that production building-block is contained using sugar mill mud, increase the cementing area of block interiors, it can
To improve compression strength.But due to containing organic composition in sugar mill mud, organic composition has the performance of building block negative
Face acts on, and to remove organic matter, needs to increase incinerator, not only increases input, also improve product cost, no economy is excellent
Gesture.
（4）It is most easy in the industry and current most common side to stand stacking or fill up standing stacking or landfill of digging pit
Method.This not only occupies a large amount of soils, but also causes underground water pollution；If landfill imprecision, filter mud go bad it is smelly, grow
Fly causes secondary pollution, destroys ambient enviroment.
（5）Lime is produced into sugar mill mud regeneration and carbon dioxide should be the ideal side that solves sugar mill mud pollution problem
Method, in recent years, people have carried out a large amount of research and exploration, but always without obtaining Progress in industrialization.The patent No.
201710072575.8 produce lime using high temperature furnace calcining sugar mill mud, but there are still the CO generated in calcination process2's
Process problem；Calcium-based materials are carried out CaCO by researcher in laboratory conditions, using thermogravimetric analyzer3/ CaO is recycled
Calcination/carbonation is tested, and finds the increase with cycle-index, and the activity of lime reduces, and there are sintering phenomenons；In industry
Field using sugar mill mud as raw material, carries out calcining using vertical calcining furnace, hollow rotary kiln and produces lime, the problem is that
Unstable product quality, heat consumption are big, of high cost.
In conclusion the current situation for solving sugar mill mud environment pollution technology not yet enters industrialization, industrialization stage,
Sugar manufacturing industry is badly in need of a kind of industrialization, industrialization technology and equipment for solving sugar mill mud environmental pollution.
3rd, invention content
Present invention aims at the problem of environmental pollution for solving the generation of solid waste sugar mill mud, by sugar mill mud/powder
The processing of Cyclic Calcination/carbonating of shape lime, and with CO2Effusion/absorbing reaction is recycled, the harmless processing for filter mud provides
A kind of new method and apparatus not only solves the problem of environmental pollution of filter mud, also achieves the resource recycling profit of filter mud
With.
The technical solution adopted by the present invention is：A kind of sugar mill mud recycling device is pre-processed including sugar mill mud and is filled
It puts, raw material storage, metering device, suspension preheating device, suspension decomposer, depth decarburization device, fluidized suspension cooling device, powder
Shape lime bin, slaking apparatus, dispensing pans, carbonating tank, cohesion tank, filter-pressing device, CO2Reuse means.Depth decarburization fills
Decarburization burner is installed, suspension decomposer lower part appropriate location is also provided with decomposition combustion device.
The sugar mill mud pretreatment unit is used for sugar mill mud drying and dehydrating and powder is made；The raw material storage
For storing filter mud powder；The metering device is used to measure and control the inventory into powdered lime firing system；Institute
The suspension preheating device stated is for pre-heating powder material to critical decomposition temperature；The suspension decomposer faces for making to be in
The CaCO of boundary's decomposition temperature3It is decomposed into CaO and CO2；The depth decarburization device is used to make not decompose CaCO completely3In CO2
Effusion completely provides stable temperature field and space for CaCO3 gross decarburizations, and usual depth decarburization device tilts installation, with it
Rotation material is slowly moved from feed end to discharge end, at the same time it can also the CO by adjusting material2Time of liberation and speed,
Control the life burning rate of lime；The fluidized suspension cooling device is used to cool down out the high-temperature lime of depth decarburization device；Institute
State CO2Reuse means is rich in CO for what collection processing powdered lime firing system generated2Tail gas, reach sugaring process pair
CO2Requirement；Slaking apparatus is used to add water that milk of lime is made, and remove insoluble impurity powdered lime；Dispensing pans
For mixing milk of lime and raw sugar juice；Carbonating tank is full charge CO2Milk of lime is made to be carbonized to form CaCO3The reactor of particle；Agglomerate tank
It is CaCO3Particle adsorbs the reactor of impurity in syrup and coagulative precipitation；Filter-pressing device is to realize sugar mill mud and syrup filtrate
The device of separation of solid and liquid.
The filter mud pretreatment unit is connected by transloading equipment with raw material storage；Raw material storage outlet setting metering dress
It puts；Metering device is connected by conveying device with suspension preheating device feed inlet；Suspension preheating device discharge port divides with suspending
Solution device feed inlet is connected；Suspension decomposer discharge port is connected with depth decarburization device feed inlet, suspension preheating device
Gas outlet and CO2Reuse means is connected, CO2Reuse means gas outlet is connected with carbonating tank air inlet；Depth decarburization fills
The discharge port put is connected with fluidized suspension cooling device feed inlet；Fluidized suspension cooling device discharge end by conveying equipment with
Powdered lime library is connected；Powdered lime library discharge end is connected with slaking apparatus feed inlet；Slaking apparatus discharge port passes through pipe
Road is connected with dispensing pans feed inlet；Dispensing pans discharge port is connected with carbonating tank feed inlet；Carbonating tank discharge port
It is connected by pipeline with cohesion tank feed inlet；Cohesion tank discharge port is connected with filter-pressing device.
The present invention operation principle be：Sugar mill mud is pre-processed first, then by pretreated material metering
And suspension preheating device is transported to, after material is preheated to critical decomposition temperature, then it is transferred to suspension decomposer so that exhausted big portion
Divide material that CaCO occurs3It decomposes, generates CaO and CO2；The material for going out the decomposer that suspends is imported into the completion of depth decarburization device deeply
Decarburization is spent, generates high-temperature lime；Go out the high-temperature lime of depth decarburization device after the cooling of fluidized suspension cooling device to get powdery
Active lime；By-product CO2It is used as the CO needed for full charge process2Gas.Add water that lime is made powdery active lime obtained
Newborn Ca (OH)2, then mixed with raw sugar solution, then the full charge CO into mixed liquor2, form CaCO3Particle, the particle adsorbing contaminant
Form paste precipitation, as sugar mill mud.Realize the calcination/carbonation cycle and CO of sugar mill mud/powdered lime2Effusion/suction
The cycle of receipts.
Specifically：
Process one：Sugar mill mud is calcined and CO2Effusion
Sugar mill mud is pre-processed first, the pretreatment is by filter mud drying and dehydrating, then is made into powder；Through pre-
Material storing is transported to suspension preheating device, material is preheated to critical decomposition in raw material storage after processing after then being measured
Temperature, then suspension decomposer is transferred to, make material of the overwhelming majority in critical decomposition temperature that CaCO occur3It decomposes, generates CaO
And CO2；The material for going out the decomposer that suspends imports depth decarburization device completion depth decarburization, and the depth decarburization device is used for
Make not decompose CaCO completely3In CO2Effusion completely；The high-temperature lime for going out depth decarburization device is cold through fluidized suspension cooling device
But to get powdery active lime after；The by-product CO generated in sugar mill mud calcination process2It is used as the CO needed for full charge process2
Gas, to be ready for use on carbonation juice-milk of lime mixed liquor.
Process two：CO2It absorbs and powdered lime is carbonized
The powdered lime fired first with filter mud adds water that milk of lime Ca (OH) is made2, then with raw sugar solution mix and transfer to
In carbonating tank, the then full charge CO into the mixed liquor of carbonating tank2, form CaCO3Particle, CaCO3Particle adsorbing contaminant agglomerates to be formed
Paste precipitates, and after filtered separation of solid and liquid, syrup filtrate goes to deep processing workshop, and filter residue is sugar mill mud, then is used by cycle
Make the raw material of calcining powdered lime.
The above process one, process two, process one, process two so in cycles, and then realize sugaring filter
The calcination/carbonation cycle and CO of mud/powdered lime2The cycle of effusion/absorption.
The thermal-flame generated by decarburization burner combustion enters the temperature field that depth decarburization device forms lime decarburization, and
Heat is provided for depth decarburization；The thermal-flame that the burning of decomposition combustion device generates enters suspension decomposer and forms decomposition of limestone
Temperature field, and for CaCO3It decomposes and heat is provided.
In view of material loss problem during recycling, certain calcareous raw material is usually added in preprocessing process,
To meet the needs of material balance between each process in production process.
The present invention is sugar mill mud/powdered lime Cyclic Calcination/carbonization, CO2Cycle effusion/absorption provide a kind of side
Method and device, have the characteristics that：
1st, solid waste recycling.The present invention realizes sugar mill mud/powdered lime Cyclic Calcination/carbonization, both solves solid
The pollution problem of body waste protects environment, and the resource recycling for realizing sugar mill mud utilizes, and fundamentally solves
The problem of environmental pollution of sugar mill mud also increases the economic benefit of enterprise.
2nd, reduce CO2Discharge.The present invention realizes CO2Cycle effusion/absorption, reduce sugar enterprise outsourcing CO2
Gas is used for the expense of full charge, thus reduces the discharge of CO2.
3rd, using suspension preheating predecomposition sintering process, the decomposition of CaCO3 carries out under suspended state always, reaction environment
In CO2 partial pressure it is small, be conducive to improve lime activity；The use of depth decarburization device ensure that filter mud decarburization is complete, reduce
Raw burn phenomenon, gained Activity of Lime is high, quality is good.
The money of the solid waste such as the calcium carbonate slag generated the present disclosure applies equally to paper white sludge, ardealite sulphur ammonium fertilizer
Source recycles.
4th, it illustrates
Fig. 1 schematic diagrames of the present invention.
In Fig. 1：Sugar mill mud pretreatment unit 1, metering device 3, suspension preheating device 4, suspends and decomposes dress at raw material storage 2
Put 5, depth decarburization device 6, fluidized suspension cooling device 7, powdered lime library 8, slaking apparatus 9, dispensing pans 10, carbonating tank
11st, tank 12, filter-pressing device 13, CO are agglomerated2Reuse means 14, decarburization burner 15, decomposition combustion device 16.
Fig. 2 flow diagrams of the present invention.
5th, specific embodiment
In conjunction with attached schematic diagram shown in FIG. 1, the present invention is described as follows.
The present invention is sugar mill mud/powdered lime Cyclic Calcination/carbonization, CO2Cycle effusion/absorption provide a kind of dress
It puts.The device includes sugar mill mud pretreatment unit 1, raw material storage 2, metering device 3, suspension preheating device 4, suspends and divide
It solves device 5, depth decarburization device 6, fluidized suspension cooling device 7, powdered lime library 8, slaking apparatus 9, dispensing pans 10, satisfy
Fill tank 11, cohesion tank 12, filter-pressing device 13, CO2Reuse means 14, depth decarburization device 6 set decarburization burner 16, suspend
5 lower part appropriate location of decomposer setting decomposition combustion device 16.
The sugar mill mud pre-processes 1 device and is used for sugar mill mud drying and dehydrating and powder is made；The raw material
Library 2 is used to store the filter mud of powder shaped；The metering device 3 is used to measure and control the object into powdered lime firing system
Doses；The suspension preheating device 4 is for pre-heating powder material to critical decomposition temperature；The suspension decomposer 5 is used
In making the CaCO in critical decomposition temperature3It is decomposed into CaO and CO2；The depth decarburization device 6 is used to make not decompose completely
CaCO3In CO2Effusion completely, stable temperature field and space is provided for CaCO3 gross decarburizations, usual depth decarburization device inclines
Tiltedly installation, rotates with it material and is slowly moved from feed end to discharge end, at the same time it can also the CO by adjusting material2Effusion
Time and speed control the life burning rate of lime；The fluidized suspension cooling device 7 is used to cool down out depth decarburization device 6
High-temperature lime；The CO2Reuse means 14 is rich in CO for what collection processing powdered lime firing system generated2Tail gas,
Reach sugaring process to CO2Requirement；Slaking apparatus 9 is used to add water that milk of lime is made, and remove insoluble powdered lime
Impurity；Dispensing pans 10 are used to mix milk of lime and raw sugar juice；Carbonating tank 11 is full charge CO2Milk of lime is made to be carbonized to form CaCO3
The reactor of particle；It is CaCO to agglomerate tank 123Particle adsorbs the reactor of impurity in syrup and coagulative precipitation；Filter-pressing device 13 is
Realize sugar mill mud and the device of syrup filtrate separation of solid and liquid.
The filter mud pretreatment unit 1 is connected by transloading equipment with raw material storage 2；The outlet of raw material storage 2 setting metering
Device 3；Metering device 3 is connected by conveying device with 4 feed inlet of suspension preheating device；4 discharge port of suspension preheating device with
5 feed inlet of suspension decomposer is connected；5 discharge port of suspension decomposer is connected with 6 feed inlet of depth decarburization device, suspends
4 gas outlet of preheating device and CO2Reuse means 14 is connected, CO214 gas outlet of reuse means and 11 air inlet phase of carbonating tank
Connection；The discharge port of depth decarburization device 6 is connected with 7 feed inlet of fluidized suspension cooling device；Fluidized suspension cooling device 7 goes out
Material end is connected by conveying equipment with powdered lime library 8；8 discharge end of powdered lime library is connected with 9 feed inlet of slaking apparatus；
9 discharge port of slaking apparatus is connected by pipeline with 10 feed inlet of dispensing pans；10 discharge port of dispensing pans and carbonating tank
11 feed inlets are connected；11 discharge port of carbonating tank is connected by pipeline with cohesion 12 feed inlet of tank；Agglomerate 12 discharge port of tank with
Filter-pressing device 13 is connected.
The present invention operation principle be：Sugar mill mud is pre-processed first, then by pretreated material metering
And suspension preheating device 4 is transported to, after material is preheated to critical decomposition temperature, then it is transferred to suspension decomposer 5 so that big absolutely
CaCO occurs for partial material3It decomposes, generates CaO and CO2；Going out to suspend, to be imported into depth decarburization device 6 complete for the material of decomposer 5
Into depth decarburization, high-temperature lime is generated；Go out the high-temperature lime of depth decarburization device 6 after the cooling of fluidized suspension cooling device 7, i.e.,
Obtain powdery active lime；By-product CO2It is used as the CO needed for full charge process2Gas.Powdery active lime obtained is added into water system
Into milk of lime Ca (OH)2, then mixed with raw sugar solution, then the full charge CO into mixed liquor2, form CaCO3Particle, the particle are inhaled
Attached impurity forms paste precipitation, as sugar mill mud.Realize the calcination/carbonation cycle and CO of sugar mill mud/powdered lime2Ease
The cycle for going out/absorbing.
Specifically：
Process one：Sugar mill mud is calcined and CO2Effusion
Sugar mill mud is pre-processed first, the pretreatment is by sugar mill mud drying and dehydrating, then is made into powder；
Material storing is transported to suspension preheating device 4, material, which is preheated to, to be faced in raw material storage 2 after pretreatment after then being measured
Boundary's decomposition temperature, then suspension decomposer 5 is transferred to, make material of the overwhelming majority in critical decomposition temperature that CaCO occur3It decomposes,
Generate CaO and CO2；The material of decomposer 5 of going out to suspend imports depth decarburization device 6 and completes depth decarburization, and the depth takes off
Carbon device 6 is used to make not decompose CaCO completely3In CO2Effusion completely；The high-temperature lime for going out depth decarburization device 6 is outstanding through fluidizing
To get powdery active lime after the floating cooling of cooling device 7；The by-product CO generated in sugar mill mud calcination process2It is used as satisfying
Fill the CO needed for process2Gas, to be ready for use on carbonation juice-milk of lime mixed liquor.
Process two：CO2It absorbs and powdered lime is carbonized
The powdered lime fired first with sugar mill mud adds water that milk of lime Ca (OH) is made2, then with raw sugar solution mix and turn
It send into carbonating tank 11, then the full charge CO into the mixed liquor of carbonating tank 112, form CaCO3Particle, CaCO3Particle adsorbing contaminant
Cohesion forms paste and precipitates, and after filtered separation of solid and liquid, syrup filtrate goes to deep processing workshop, and filter residue is sugar mill mud, then
It is recycled as the raw material of calcining powdered lime.
The above process one, process two, process one, process two, so in cycles, and then realization sugar mill mud/
The calcination/carbonation cycle and CO of powdered lime2The cycle of effusion/absorption.
The temperature that depth decarburization device 6 forms lime decarburization is entered by the burn thermal-flame of generation of decarburization burner 15
, and provide heat for depth decarburization；The thermal-flame that the burning of decomposition combustion device 16 generates enters suspension decomposer 5 and forms stone
The temperature field that lime stone decomposes, and be CaCO3It decomposes and heat is provided.
In view of material loss problem during recycling, certain calcareous raw material is usually added in preprocessing process,
To meet the needs of material balance between each process in production process.
Claims (3)
1. a kind of sugared mud of suspension sintering method processing realizes the method that fining agent recycles, it is characterised in that：Sugaring is filtered first
Mud is pre-processed, and then by pretreated material metering and is transported to suspension preheating device, material is preheated to critical point
After solving temperature, then it is transferred to suspension decomposer so that CaCO occurs for most materials3It decomposes, generates CaO and CO2；Go out to suspend
The material of decomposer is imported into depth decarburization device and completes depth decarburization, generates high-temperature lime；Go out the height of depth decarburization device
Fire stons ash is after the cooling of fluidized suspension cooling device to get powdery active lime；By-product CO2It is used as needed for full charge process
CO2Gas；Add water that milk of lime Ca (OH) is made powdery active lime obtained2, then mixed with raw sugar solution, then to mixing
Full charge CO in liquid2, form CaCO3Particle, the particle adsorbing contaminant form paste precipitation, as sugar mill mud；
Specifically：
Process one：Sugar mill mud is calcined and CO2Effusion
Sugar mill mud is pre-processed first, the pretreatment is by sugar mill mud drying and dehydrating, then is made into powder；
Material storing is transported to suspension preheating device, material is preheated to critical in raw material storage after pretreatment after then being measured
Decomposition temperature, then suspension decomposer is transferred to, make material of the overwhelming majority in critical decomposition temperature that CaCO occur3It decomposes, it is raw
Into CaO and CO2；The material for going out the decomposer that suspends imports depth decarburization device completion depth decarburization, depth decarburization dress
It puts to make not decompose CaCO completely3In CO2Effusion completely；The high-temperature lime for going out depth decarburization device is cooled down through fluidized suspension
To get powdery active lime after device cooling；The by-product CO generated in sugar mill mud calcination process2It is used as full charge process institute
The CO needed2Gas, to be ready for use on carbonation juice-milk of lime mixed liquor；
Process two：CO2It absorbs and powdered lime is carbonized
The powdered lime fired first with sugar mill mud adds water that milk of lime Ca (OH) is made2, then with raw sugar solution mix and transfer
Into carbonating tank, the then full charge CO into the mixed liquor of carbonating tank2, form CaCO3Particle, CaCO3Particle adsorbing contaminant agglomerates shape
It is precipitated into paste, after filtered separation of solid and liquid, syrup filtrate goes to deep processing workshop, and filter residue is sugar mill mud, then is recycled
Raw material as calcining powdered lime；
The above process one, process two, process one, process two so in cycles, and then realize sugar mill mud/powdery
The calcination/carbonation cycle and CO of lime2The cycle of effusion/absorption.
2. a kind of sugared mud of suspension sintering method processing realizes the device that fining agent recycles, it is characterised in that：Including sugar mill mud
Pretreatment unit, raw material storage, metering device, suspension preheating device, suspension decomposer, depth decarburization device, fluidized suspension are cold
But device, powdered lime library, CO2Reuse means, slaking apparatus, dispensing pans, carbonating tank, cohesion tank, filter-pressing device；It is deep
Decarbonization device setting decarburization burner is spent, suspension decomposer lower part appropriate location is also provided with decomposition combustion device；
The sugar mill mud pretreatment unit is used for sugar mill mud drying and dehydrating and powder is made；The raw material storage is used for
Store the filter mud of powder shaped；The metering device is used to measure and control the inventory into powdered lime firing system；Institute
The suspension preheating device stated is for pre-heating powder material to critical decomposition temperature；The suspension decomposer faces for making to be in
The CaCO of boundary's decomposition temperature3It is decomposed into CaO and CO2；The depth decarburization device is used to make not decompose CaCO completely3In CO2
Effusion completely provides stable temperature field and space for CaCO3 gross decarburizations, and usual depth decarburization device tilts installation, with it
Rotation material is slowly moved from feed end to discharge end, at the same time it can also the CO by adjusting material2Time of liberation and speed,
Control the life burning rate of lime；The fluidized suspension cooling device is used to cool down out the high-temperature lime of depth decarburization device；Institute
State CO2Reuse means is rich in CO for what collection processing powdered lime firing system generated2Tail gas, reach sugaring process pair
CO2Requirement；Slaking apparatus is used to add water that milk of lime is made, and remove insoluble impurity powdered lime；Dispensing pans
For mixing milk of lime and raw sugar juice；Carbonating tank is full charge CO2Milk of lime is made to be carbonized to form CaCO3The reactor of particle；Agglomerate tank
It is CaCO3Particle adsorbs the reactor of impurity in syrup and coagulative precipitation；Filter-pressing device is to realize sugar mill mud and syrup filtrate
The device of separation of solid and liquid.
3. the sugared mud of suspension sintering method processing according to claim 2 realizes the device that fining agent recycles, feature exists
In：The filter mud pretreatment unit is connected by transloading equipment with raw material storage；Raw material storage outlet setting metering device；Metering
Device is connected by conveying device with suspension preheating device feed inlet；Suspension preheating device discharge port and suspension decomposer into
Material mouth is connected；Suspension decomposer discharge port is connected with depth decarburization device feed inlet, suspension preheating device gas outlet with
CO2Reuse means is connected, CO2Reuse means gas outlet is connected with carbonating tank air inlet；The discharging of depth decarburization device
Mouth is connected with fluidized suspension cooling device feed inlet；Fluidized suspension cooling device discharge end passes through conveying equipment and powdered lime
Library is connected；Powdered lime library discharge end is connected with slaking apparatus feed inlet；Slaking apparatus discharge port passes through pipeline and dispensing
Pans feed inlet is connected；Dispensing pans discharge port is connected with carbonating tank feed inlet；Carbonating tank discharge port passes through pipeline
It is connected with cohesion tank feed inlet；Cohesion tank discharge port is connected with filter-pressing device.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113281212A (en) * | 2021-06-28 | 2021-08-20 | 江苏鹏飞集团股份有限公司 | Raw and overfire rate measuring and calculating method |
| US11866610B2 (en) | 2022-01-31 | 2024-01-09 | Kuwait Institute For Scientific Research | Tablet-based method of producing nano/micro particle water suspensions and carbon dioxide gas |
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|---|---|---|---|---|
| JP2011168445A (en) * | 2010-02-18 | 2011-09-01 | Setekku:Kk | Method of calcining powdery calcium carbonate |
| CN102732643A (en) * | 2012-07-24 | 2012-10-17 | 广西大学 | Method for preparing sulfur-free white sugar by carbon method with resource recycling |
| CN106809866A (en) * | 2017-02-10 | 2017-06-09 | 山东星光生物科技有限公司 | A kind of sugar mill mud high-efficiency comprehensive utilization method and device |
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- 2018-02-12 CN CN201810145924.9A patent/CN108129002B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011168445A (en) * | 2010-02-18 | 2011-09-01 | Setekku:Kk | Method of calcining powdery calcium carbonate |
| CN102732643A (en) * | 2012-07-24 | 2012-10-17 | 广西大学 | Method for preparing sulfur-free white sugar by carbon method with resource recycling |
| CN106809866A (en) * | 2017-02-10 | 2017-06-09 | 山东星光生物科技有限公司 | A kind of sugar mill mud high-efficiency comprehensive utilization method and device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113281212A (en) * | 2021-06-28 | 2021-08-20 | 江苏鹏飞集团股份有限公司 | Raw and overfire rate measuring and calculating method |
| US11866610B2 (en) | 2022-01-31 | 2024-01-09 | Kuwait Institute For Scientific Research | Tablet-based method of producing nano/micro particle water suspensions and carbon dioxide gas |
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