CN115253895A - Device and method for producing ceramsite by recycling aluminum ash - Google Patents
Device and method for producing ceramsite by recycling aluminum ash Download PDFInfo
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- CN115253895A CN115253895A CN202210828375.1A CN202210828375A CN115253895A CN 115253895 A CN115253895 A CN 115253895A CN 202210828375 A CN202210828375 A CN 202210828375A CN 115253895 A CN115253895 A CN 115253895A
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- water
- fixedly connected
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- defluorination
- aluminum ash
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- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 60
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 60
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 238000004064 recycling Methods 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 118
- 238000006115 defluorination reaction Methods 0.000 claims abstract description 56
- 238000005469 granulation Methods 0.000 claims abstract description 45
- 230000003179 granulation Effects 0.000 claims abstract description 45
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 25
- 239000011737 fluorine Substances 0.000 claims abstract description 13
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 13
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 13
- 238000005507 spraying Methods 0.000 claims abstract description 10
- 239000000413 hydrolysate Substances 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims description 65
- 239000002956 ash Substances 0.000 claims description 53
- 239000002893 slag Substances 0.000 claims description 33
- 238000000926 separation method Methods 0.000 claims description 32
- 239000003795 chemical substances by application Substances 0.000 claims description 28
- 230000008878 coupling Effects 0.000 claims description 28
- 238000010168 coupling process Methods 0.000 claims description 28
- 238000005859 coupling reaction Methods 0.000 claims description 28
- 238000003860 storage Methods 0.000 claims description 24
- 239000007789 gas Substances 0.000 claims description 18
- 238000002386 leaching Methods 0.000 claims description 16
- 238000006243 chemical reaction Methods 0.000 claims description 15
- 238000002156 mixing Methods 0.000 claims description 15
- 230000007062 hydrolysis Effects 0.000 claims description 12
- 238000006460 hydrolysis reaction Methods 0.000 claims description 12
- 238000011049 filling Methods 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 8
- 239000000945 filler Substances 0.000 claims description 8
- 239000007791 liquid phase Substances 0.000 claims description 8
- 239000007790 solid phase Substances 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- 238000013016 damping Methods 0.000 claims description 7
- 238000007790 scraping Methods 0.000 claims description 6
- 230000032683 aging Effects 0.000 claims description 5
- 239000004411 aluminium Substances 0.000 claims description 5
- 239000004568 cement Substances 0.000 claims description 4
- 239000010881 fly ash Substances 0.000 claims description 4
- 235000019353 potassium silicate Nutrition 0.000 claims description 4
- 239000002002 slurry Substances 0.000 claims description 4
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 4
- 239000013049 sediment Substances 0.000 claims description 2
- 238000010079 rubber tapping Methods 0.000 claims 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims 1
- 238000007781 pre-processing Methods 0.000 claims 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 7
- 239000002699 waste material Substances 0.000 abstract description 6
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 abstract description 5
- 235000011114 ammonium hydroxide Nutrition 0.000 abstract description 5
- 150000003863 ammonium salts Chemical class 0.000 abstract description 5
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 abstract description 5
- 229910001634 calcium fluoride Inorganic materials 0.000 abstract description 5
- 230000009931 harmful effect Effects 0.000 abstract description 4
- 230000009471 action Effects 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 3
- 239000007921 spray Substances 0.000 abstract description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 8
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 5
- 229910052748 manganese Inorganic materials 0.000 description 5
- 239000011572 manganese Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000011449 brick Substances 0.000 description 4
- 239000000292 calcium oxide Substances 0.000 description 4
- 235000012255 calcium oxide Nutrition 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- -1 ammonium ions Chemical class 0.000 description 2
- 239000003818 cinder Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000002440 industrial waste Substances 0.000 description 2
- 238000001802 infusion Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000005453 pelletization Methods 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- CAVCGVPGBKGDTG-UHFFFAOYSA-N alumanylidynemethyl(alumanylidynemethylalumanylidenemethylidene)alumane Chemical compound [Al]#C[Al]=C=[Al]C#[Al] CAVCGVPGBKGDTG-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/14—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic in rotating dishes or pans
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a device and a method for producing ceramsite by recycling aluminum ash, and the device comprises pretreatment equipment and a disk granulator. The invention adds the pretreatment equipment, firstly carries out the defluorination and denitrification process when the aluminum ash is utilized, avoids the phenomenon that the finished ceramsite contains more harmful elements, simultaneously can reutilize nitrogen, hydrolysate and fluorine-containing solution generated in the defluorination and denitrification process and respectively serve as raw materials for preparing ammonia water, ammonium salt and calcium fluoride, improves the utilization rate of wastes, simultaneously is provided with the uniform water adding component in the disc granulator, enables the spray head to swing back and forth within the radius range of the granulation disc under the action of the speed reducing motor, enables the water spraying to be more uniform, ensures that the internal materials are more uniform and faster when mixed, can adjust the angle position of the granulation disc through the electric push rod, enables the granulation disc to be horizontal when the water and the materials are not mixed at the initial stage of water adding, can avoid water splashing, and is adjusted to the inclination angle for granulation after the water and the materials are mixed, and is more convenient to use.
Description
Technical Field
The invention relates to the technical field of secondary utilization of aluminum ash, in particular to a device and a method for producing ceramsite by resource utilization of aluminum ash.
Background
The secondary aluminum ash is a gray powder industrial waste which is a byproduct of the electrolytic aluminum industry, wherein aluminum nitride and aluminum carbide contained in the industrial waste generate ammonia gas, methane and other gases when meeting water, emit foul smell and have harmful effects on human health and atmospheric environment, fluoride and cyanide are dissolved out when meeting water to pollute natural water, serious harm is caused to the natural environment if the natural environment is directly buried without treatment, along with the continuous expansion of enterprise structure optimization and aluminum product capacity, the electrolytic aluminum industry occupies a position with great weight in the whole country, the problem of the secondary aluminum ash is also increasingly troublesome, if the secondary aluminum ash cannot be effectively treated in time, the benign development of the electrolytic aluminum industry is inevitably influenced, the conventional secondary aluminum ash is frequently secondarily utilized in production, so that the problem that the secondary aluminum ash is difficult to treat is solved, and the secondary aluminum ash is mainly used for manufacturing ceramsite, supporting agent, pressed brick and the like.
For example, the invention patent in China with the publication number of CN201810784894.6 discloses a process for preparing baking-free bricks by using iron tailings, secondary aluminum ash and acid-leaching manganese slag, which comprises the steps of mixing and stirring the iron tailings, aggregate river sand, a cementing material, pretreated secondary aluminum ash and quick lime pretreated acid-leaching manganese slag, adding stirring water for preactivation, adding an additive, stirring in advance, grinding and mixing in a wheel, stirring finally, injecting into a forming die after aging, setting forming pressure, pressurizing in a staged manner, pressing at constant pressure for forming, steam curing in a high-pressure sterilization pot, and naturally curing to obtain the baking-free bricks. The acid leaching manganese slag is pretreated by using quick lime, the quick lime is added into the acid leaching manganese slag to form an alkaline environment, partial heavy metal ions precipitate under the alkaline condition, and meanwhile, the quick lime has a good absorption effect on ammonium ions, prevents the ammonium ions from decomposing to cause air pollution, and has a good excitation effect on the acid leaching mirror slag; the activation performance of the manganese slag is excited, a gel substance and aggregate are added, the mixture is uniformly mixed and stirred, and then the baking-free brick is prepared by a compression molding method.
And aiming at the process of preparing the ceramsite by using the aluminum ash, a disc granulator is mostly needed, and the existing disc granulator also has the following defects: present disc granulator is when adding water, and the position of watering is fixed, though the disc rotates, but can only add water to a ring portion, and it is inhomogeneous to lead to adding water, influences the mixing efficiency in earlier stage, and in addition, present disc granulator disc is the tilt state, and at the initial stage of adding water, water and content material do not mix, the phenomenon of the water spill of taking place easily, causes the material extravagant on the one hand, and on the other hand also influences the calculation to adding the water yield.
Therefore, the device and the method for producing the ceramsite by recycling the aluminum ash are provided for solving the problems.
Disclosure of Invention
The invention aims to provide a device and a method for producing ceramsite by resource utilization of aluminum ash, which aim to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a device and a method for producing ceramsite by recycling aluminum ash comprise a pretreatment device and a disk granulator, wherein the pretreatment device comprises a shell, a high-pressure denitrification reactor, a solid-liquid separator, a defluorination reactor and an ultrasonic separation washer are fixedly connected in the shell from top to bottom in sequence, the high-pressure denitrification reactor is communicated with one end of a gas pipe, the other end of the gas pipe penetrates through the shell and is communicated with a gas storage tank, the solid-liquid separator is communicated with one end of a first liquid conveying pipe, the other end of the first liquid conveying pipe penetrates through the shell and is communicated with a first liquid storage tank, the ultrasonic separation washer is communicated with one end of a second liquid conveying pipe, and the other end of the second liquid conveying pipe penetrates through the shell and is communicated with a second liquid storage tank;
the disc granulator comprises a fixed base part, a disc granulation part and a uniform water adding part, and the disc granulation part and the uniform water adding part are fixedly connected to the fixed base part;
the uniform water adding component comprises a vertical support, an L-shaped support and a motor bin, two hinge plates are fixedly connected to two sides of the top surface of the vertical support, two hinge shafts are fixedly connected to two sides of the bottom surface of the L-shaped support and are respectively rotatably connected with the two hinge plates, the motor bin is located below the L-shaped support, one end of each hinge shaft penetrates through the hinge plate and is horizontally and fixedly connected with a transmission rod, one end, far away from the hinge shaft, of each transmission rod is fixedly connected with an upper shaft rod, the end of the motor bin is rotatably connected with a rotary disc, the edge of the rotary disc is horizontally and fixedly connected with a lower shaft rod, the lower shaft rod is rotatably connected with the bottom end of a connecting rod, the top end of the connecting rod is rotatably connected with the upper shaft rod, one end, far away from the hinge shaft, of the L-shaped support is fixedly connected with a sprinkler head, a speed reducing motor is fixedly connected in the motor bin, and the end of the rotary disc is fixedly connected with the center of the rotary disc.
Preferably, the bottom surface of the high-pressure denitrification reactor is communicated with the top end of a first short pipe, the bottom end of the first short pipe is communicated with a solid-liquid separator, the bottom center of the solid-liquid separator is communicated with the top end of a second short pipe, the bottom end of the second short pipe is communicated with a defluorination reactor, the bottom surface of the defluorination reactor is communicated with the top end of a third short pipe, the bottom end of the third short pipe is communicated with the top surface of an ultrasonic separation washer, the first short pipe is fixedly connected with a first valve, the second short pipe is fixedly connected with a second valve, and the third short pipe is fixedly connected with a third valve.
Preferably, shell top surface rigid coupling aluminium ash import and main filler, aluminium ash import and main filler all communicate high-pressure denitrification reactor, the ultrasonic separation scrubber lateral wall is seted up and is got the cinder notch, the shell bottom surface corresponds gets the same horizontal position of cinder notch and rotates and connect and get the sediment revolving door, shell lateral wall rigid coupling defluorinating agent inlet and sub-filler, defluorinating agent inlet intercommunication defluorinating reactor, sub-filler intercommunication ultrasonic separation scrubber.
Preferably, the fixing seat part comprises a base, two side plates are fixedly connected to two sides of the top surface of the base respectively, a main shaft is horizontally and fixedly connected between the top surfaces of the side plates, the main shaft is rotatably connected to the bottom of the rotating block, a damping sleeve is horizontally and fixedly connected to the bottom of the rotating block, and the damping sleeve is in interference fit with the outer side of the main shaft.
Preferably, one side of the bottom surface of the rotating block is vertically and fixedly connected with a force application plate, the force application plate is perpendicular to the side plate, the position, far away from the side plate, of the top surface of the base is vertically and fixedly connected with a second hinged block, a vertical groove is vertically formed in the position, close to one side of the second hinged block, of the center of the force application plate, a sliding block is connected in the vertical groove in a sliding mode, the side wall of the sliding block is fixedly connected with a first hinged block, the first hinged block is rotatably connected with one end of an electric push rod, and the other end of the electric push rod is rotatably connected with the second hinged block.
Preferably, disc granulation part includes the chassis, the chassis top surface is rotated and is connected the granulation disc, the chassis rigid coupling is at the commentaries on classics piece top surface, limit subassembly is scraped to chassis one side rigid coupling, rigid coupling disc motor in the chassis, disc motor rotor end rigid coupling granulation disc bottom surface central point puts, granulation disc bottom surface rigid coupling sliding ring, the annular is seted up to the chassis top surface, the sliding ring rotates to be connected in the annular.
Preferably, scrape limit subassembly and include the support diaphragm of horizontal rigid coupling in chassis one side, the perpendicular board bottom of the perpendicular rigid coupling of chassis one end is kept away from to the support diaphragm, the horizontal rigid coupling roof in perpendicular board top, the roof is located granulation disc top, a plurality of first pole settings of even rigid coupling in roof bottom surface, it is a plurality of the flat scraper blade of first pole setting bottom rigid coupling, flat scraper blade contact granulation disc bottom surface, flat scraper blade is close to the perpendicular rigid coupling side scraper blade of granulation edge one end top surface, side scraper blade contact granulation disc inside wall, the perpendicular rigid coupling second pole setting in side scraper blade top, second pole setting top rigid coupling roof bottom surface.
Preferably, evenly add the water tank that the part still includes, water tank top surface rigid coupling water pump, the water pump rigid coupling is erecting the support bottom, erect and set up first opening in the support, set up the second opening in the L type support, clearance fit raceway in first opening and the second opening, raceway one end intercommunication water pump, other end intercommunication sprinkler head, the water tank rigid coupling is at base top surface, the sprinkler head is located granulation disc top, the water tank intercommunication adds the mouth of a river.
A device and a method for producing ceramsite by resource utilization of aluminum ash comprise the following steps:
step one, removing nitrogen from aluminum ash: adding aluminum ash and water into a high-pressure denitrification reactor through an aluminum ash inlet and a main water filling port respectively, carrying out leaching reaction, conveying generated nitrogen into an air storage tank through a first air conveying pipe, opening a first valve, adding slurry obtained by the leaching reaction into a solid-liquid separator, carrying out solid-liquid separation, conveying obtained liquid-phase hydrolysate into a first liquid storage tank through a first liquid conveying pipe, and obtaining a solid phase which is denitrified hydrolysis residues;
step two, removing fluorine from aluminum ash: opening a second valve to input the denitrified hydrolysis slag obtained in the step one into a defluorination reactor, simultaneously adding a defluorination agent into the defluorination reactor from a defluorination agent feeding port, so that the denitrified hydrolysis slag and the defluorination agent perform defluorination reaction, opening a third valve after the reaction is finished to add a defluorination mixture into an ultrasonic separation washer, adding water into the ultrasonic separation washer from a sub-feeding port to perform solid-liquid separation on the defluorination mixture, inputting the defluorination liquid obtained as a liquid phase into a second liquid storage tank from a second liquid conveying pipe, and taking out the obtained solid phase as cleaning slag from a slag taking port for later use;
mixing in the third step: adding the clean slag obtained in the step two, cement and fly ash into a mixing device, and stirring and mixing to obtain powder;
granulating in the fourth step: adding the powder obtained in the step three into a granulation disc in a disc granulator, sequentially adding an exciting agent, a pore-forming agent and water glass, keeping the granulation disc in a horizontal state, starting a water pump to add water into the granulation disc after the internal materials are uniformly mixed, and after the water and the internal materials are uniformly mixed, starting an electric push rod to enable the granulation disc to incline for granulation to obtain a blank;
step five, cooling: and (5) ageing the blank obtained in the step four, adding the blank into a water bath kettle for steam curing, and cooling at room temperature to obtain the finished ceramsite.
And (3) performing pressurization and pressure relief operation at least once in the leaching reaction process in the first step.
The water adding amount in the fourth step is that water is added into each gram of internal materials.
Compared with the prior art, the invention has the beneficial effects that:
the invention adds the pretreatment equipment, firstly carries out the defluorination and denitrification process when the aluminum ash is utilized, avoids the phenomenon that the finished ceramsite contains more harmful elements, simultaneously can reutilize nitrogen, hydrolysate and fluorine-containing solution generated in the defluorination and denitrification process and respectively serve as raw materials for preparing ammonia water, ammonium salt and calcium fluoride, improves the utilization rate of wastes, simultaneously is provided with the uniform water adding component in the disc granulator, enables the spray head to swing back and forth within the radius range of the granulation disc under the action of the speed reducing motor, enables the water spraying to be more uniform, ensures that the internal materials are more uniform and faster when mixed, can adjust the angle position of the granulation disc through the electric push rod, enables the granulation disc to be horizontal when the water and the materials are not mixed at the initial stage of water adding, can avoid water splashing, and is adjusted to the inclination angle for granulation after the water and the materials are mixed, and is more convenient to use.
Drawings
FIG. 1 is a schematic structural view of the present invention in a first embodiment;
FIG. 2 is a schematic structural view of a pretreatment apparatus according to the present invention in a first embodiment and a second embodiment;
FIG. 3 is a schematic sectional view of a pretreatment apparatus according to the present invention in a first embodiment and a second embodiment;
FIG. 4 is a schematic view of an explosion structure at a disk pelletizer in accordance with the present invention in a second embodiment;
FIG. 5 is a schematic view showing the structure of a fixed seat part in a disk pelletizer according to a second embodiment of the present invention;
FIG. 6 is a schematic sectional view of a disk pelletizer according to a second embodiment of the present invention;
FIG. 7 is a schematic view showing a structure of a uniform water feeding part in a disk pelletizer according to the present invention in the first and second embodiments;
FIG. 8 is a sectional view of a uniform water feeding part of a disk pelletizer according to the first embodiment and the second embodiment;
FIG. 9 is a schematic view showing a state in which a pelletizing disk of a disk pelletizer in accordance with the present invention is inclined in a second embodiment.
In the figure: 1. a pre-treatment device; 2. a disk pelletizer; 11. a housing; 12. a high pressure denitrification reactor; 13. a solid-liquid separator; 14. a defluorination reactor; 15. an ultrasonic separation scrubber; 21. a stationary seat member; 22. a disk pelletizing component; 23. a uniform water adding component; 111. an aluminum ash inlet; 112. a main water filling port; 113. a slag taking rotary door; 121. a gas delivery pipe; 122. a gas storage tank; 123. a first short pipe; 124. a first valve; 131. a first infusion tube; 132. a first liquid storage tank; 133. a second short pipe; 134. a second valve; 141. a fluorine removal agent inlet; 142. a third short pipe; 143. a third valve; 151. a second infusion tube; 152. a second liquid storage tank; 153. a secondary water filling port; 154. a slag taking port; 211. a base; 212. a side plate; 213. a main shaft; 214. rotating the block; 215. a vertical slot; 216. a slider; 217. a first hinge block; 218. a second hinge block; 219. an electric push rod; 2110. a damping sleeve; 2111. a force application plate; 221. a chassis; 222. a granulation disc; 223. a scraping component; 224. a disc motor; 225. a ring groove; 226. a slip ring; 2231. supporting the transverse plate; 2232. a vertical plate; 2233. a top plate; 2234. a first upright rod; 2235. a flat scraper; 2236. a side flight; 2237. a second upright stanchion; 231. a water tank; 232. a water pump; 233. a vertical support; 234. hinging a plate; 235. a hinge shaft; 236. an L-shaped bracket; 237. a sprinkler head; 238. a motor compartment; 239. a reduction motor; 2310. a turntable; 2311. a lower shaft lever; 2312. a transmission rod; 2313. an upper shaft lever; 2314. a connecting rod; 2315. a first port; 2316. a second port; 2317. a water delivery pipe; 3218. and a water filling port.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Example 1:
referring to fig. 1-3 and fig. 7-8, the present invention provides a technical solution: a device and a method for producing ceramsite by recycling aluminum ash comprise a pretreatment device 1 and a disc granulator 2, wherein the pretreatment device 1 comprises a shell 11, a high-pressure denitrification reactor 12, a solid-liquid separator 13, a defluorination reactor 14 and an ultrasonic separation washer 15 are fixedly connected in the shell 11 from top to bottom in sequence, the high-pressure denitrification reactor 12 is communicated with one end of a gas pipe 121, the other end of the gas pipe 121 penetrates through the shell 11 and is communicated with a gas storage tank 122, the solid-liquid separator 13 is communicated with one end of a first liquid conveying pipe 131, the other end of the first liquid conveying pipe 131 penetrates through the shell 11 and is communicated with a first liquid storage tank 132, the ultrasonic separation washer 15 is communicated with one end of a second liquid conveying pipe 151, and the other end of the second liquid conveying pipe 151 penetrates through the shell 11 and is communicated with a second liquid storage tank 152;
the disc granulator 2 comprises a fixed base part 21, a disc granulation part 22 and a uniform water adding part 23, wherein the disc granulation part 22 and the uniform water adding part 23 are fixedly connected to the fixed base part 21;
the uniform water adding part 23 comprises a vertical bracket 233, an L-shaped bracket 236 and a motor cabin 238, two hinge plates 234 are fixedly connected to two sides of the top surface of the vertical bracket 233, two hinge shafts 235 are fixedly connected to two sides of the bottom surface of the L-shaped bracket 236, the two hinge shafts 235 are respectively and rotatably connected with the two hinge plates 234, the motor cabin 238 is positioned below the L-shaped bracket 236, the end of one hinge shaft 235 penetrates through the hinge plate 234 and is horizontally and fixedly connected with a transmission rod 2312, one end of the transmission rod 2312, far away from the hinge shaft 235, is fixedly connected with an upper shaft rod 2313, the end of the motor cabin 238 is rotatably connected with a turntable 2310, the edge of the turntable 2310 is horizontally and fixedly connected with a lower shaft rod 2311, the lower shaft rod 2311 is rotatably connected with the bottom end of a connecting rod 2314, the top end of the connecting rod 2314 is rotatably connected with an upper shaft rod 2313, one end of the L-shaped bracket 236, which is far away from the hinge shaft 235, is fixedly connected with the spraying head 237, the inside of the motor bin 238 is fixedly connected with the speed reducing motor 239, the rotating shaft end of the speed reducing motor 239 is fixedly connected with the central position of the turntable 2310, the turntable 2310 is arranged on the uniform water adding part 23 of the disc granulator 2, the turntable 2310 rotates under the action of the speed reducing motor 239, the lower shaft rod 2311 on the turntable 2310 drives the connecting rod 2314 to swing, and then the connecting rod 2314 drives the L-shaped bracket 236 to swing through the transmission rod 2312, so that the spraying head 237 swings to and fro within the radius range of the granulation disc 222, the water spraying is more uniform, and the internal materials are more uniform and faster when being mixed.
Example 2:
referring to fig. 2-9, a second embodiment of the present invention is based on the previous embodiment, in which the bottom surface of the high pressure denitrification reactor 12 is connected to the top end of a first short pipe 123, the bottom end of the first short pipe 123 is connected to a solid-liquid separator 13, the center of the bottom surface of the solid-liquid separator 13 is connected to the top end of a second short pipe 133, the bottom end of the second short pipe 133 is connected to a defluorination reactor 14, the bottom surface of the defluorination reactor 14 is connected to the top end of a third short pipe 142, the bottom end of the third short pipe 142 is connected to the top surface of an ultrasonic separation scrubber 15, the first short pipe 123 is fixedly connected to a first valve 124, the second short pipe 133 is fixedly connected to a second valve 134, and the third short pipe 142 is fixedly connected to a third valve 143.
The top surface of the shell 11 is fixedly connected with an aluminum ash inlet 111 and a main water filling port 112, the aluminum ash inlet 111 and the main water filling port 112 are both communicated with the high-pressure denitrification reactor 12, the side wall of the ultrasonic separation scrubber 15 is provided with a slag taking port 154, the bottom surface of the shell 11 is correspondingly connected with a slag taking revolving door 113 in a rotating manner at the same horizontal position of the slag taking port 154, the side wall of the shell 11 is fixedly connected with a fluorine removal agent feeding port 141 and a sub water filling port 153, the fluorine removal agent feeding port 141 is communicated with the fluorine removal reactor 14, and the sub water filling port 153 is communicated with the ultrasonic separation scrubber 15.
The fixed seat part 21 comprises a base 211, two sides of the top surface of the base 211 are fixedly connected with two side plates 212 respectively, the top surfaces of the two side plates 212 are horizontally and fixedly connected with a main shaft 213, the main shaft 213 is rotatably connected with the bottom of a rotating block 214, the bottom of the rotating block 214 is horizontally and fixedly connected with a damping sleeve 2110, and the damping sleeve 2110 is in interference fit with the outer side of the main shaft 213.
One side of the bottom surface of the rotating block 214 is vertically and fixedly connected with a force application plate 2111, the force application plate 2111 is perpendicular to the side plate 212, the position, far away from the side plate 212, of the top surface of the base 211 is vertically and fixedly connected with a second hinged block 218, the center position of the force application plate 2111 is close to one side of the second hinged block 218, a vertical groove 215 is vertically formed, a sliding block 216 is slidably connected in the vertical groove 215, the side wall of the sliding block 216 is fixedly connected with a first hinged block 217, the first hinged block 217 is rotatably connected with one end of an electric push rod 219, the other end of the electric push rod 219 is rotatably connected with the second hinged block 218, the rotating angle of the rotating block 214 can be changed by applying force to the force application plate 2111 through the electric push rod 219, so that the angular position of the granulating disc 222 can be adjusted, water and materials are not mixed at the initial stage of water adding, the granulating disc 222 is horizontal at the moment, water and splashing of the materials can be avoided, the water and the materials are mixed and then are adjusted to the inclined angle for granulating, and the use is more convenient.
The disc granulating part 22 comprises a chassis 221, the top surface of the chassis 221 is rotatably connected with a granulating disc 222, the chassis 221 is fixedly connected with the top surface of the rotating block 214, one side of the chassis 221 is fixedly connected with a scraping component 223, a disc motor 224 is fixedly connected in the chassis 221, the rotating shaft end of the disc motor 224 is fixedly connected with the center position of the bottom surface of the granulating disc 222, the bottom surface of the granulating disc 222 is fixedly connected with a slip ring 226, the top surface of the chassis 221 is provided with a ring groove 225, and the slip ring 226 is rotatably connected in the ring groove 225.
The edge scraping assembly 223 comprises a supporting horizontal plate 2231 horizontally fixed on one side of the base plate 221, the supporting horizontal plate 2231 is vertically fixed on the bottom end of a vertical plate 2232 away from one end of the base plate 221, the top end of the vertical plate 2232 is horizontally fixed on a top plate 2233, the top plate 2233 is positioned above the granulating disc 222, the bottom surface of the top plate 2233 is uniformly fixed on a plurality of first upright rods 2234, the bottom end of the plurality of first upright rods 2234 is fixed on a flat scraper 2235, the flat scraper 2235 contacts the bottom surface of the granulating disc 222, the flat scraper 2235 is close to the top surface of one end of the edge of the granulating disc 222 and is vertically fixed on a side scraper 2236, the top end of the side scraper 2236 is vertically fixed on a second upright rod 2237, the top end of the second upright rod 2237 is fixed on the bottom surface of the top plate 2233, and the edge scraping assembly 223 is mainly used for scraping off the wall-hanging pulp and avoiding waste of materials.
The uniform water adding part 23 further comprises a water tank 231, a water pump 232 is fixedly connected to the top surface of the water tank 231, the water pump 232 is fixedly connected to the bottom end of the vertical support 233, a first through hole 2315 is formed in the vertical support 233, a second through hole 2316 is formed in the L-shaped support 236, a water conveying pipe 2317 is in clearance fit with the first through hole 2315 and the second through hole 2316, one end of the water conveying pipe 2317 is communicated with the water pump 232, the other end of the water conveying pipe is communicated with a spraying head 237, the water tank 231 is fixedly connected to the top surface of the base 211, the spraying head 237 is positioned above the granulating disc 222, and the water tank 231 is communicated with a water adding hole 3218.
Example 3:
the third embodiment of the invention, which is based on the previous embodiment, provides a device and a method for producing ceramsite by resource utilization of aluminum ash, and the device and the method comprise the following steps:
step one, removing nitrogen from aluminum ash: adding aluminum ash and water into a high-pressure denitrification reactor 12 through an aluminum ash inlet 111 and a main water filling port 112 respectively, performing leaching reaction, wherein generated nitrogen is conveyed into a gas storage tank 122 through a first gas conveying pipe 121, opening a first valve 124, adding slurry obtained by the leaching reaction into a solid-liquid separator 13, performing solid-liquid separation, conveying obtained liquid-phase hydrolysate into a first liquid storage tank 132 through a first liquid conveying pipe 131, and obtaining a solid phase which is denitrification hydrolysis residue, wherein the obtained nitrogen can be used for preparing ammonia water, and the obtained hydrolysate can be used for preparing ammonium salt, so that the waste utilization rate is improved;
step two, removing fluorine from aluminum ash: opening a second valve 134 to input the denitrified hydrolysis slag obtained in the step one into a defluorination reactor 14, simultaneously adding a defluorination agent into the defluorination reactor 14 from a defluorination agent feeding port 141, so that the denitrified hydrolysis slag and the defluorination agent perform defluorination reaction, after the reaction is finished, opening a third valve 143 to add a defluorination mixture into an ultrasonic separation washer 15, performing solid-liquid separation on the defluorination mixture by adding water into the ultrasonic separation washer 15 through a sub water feeding port 153, inputting the defluorination liquid obtained as a liquid phase into a second liquid storage tank 152 through a second liquid conveying pipe 151, taking out the obtained solid phase as cleaning slag from a slag taking port 154 for later use, and obtaining a defluorination solution containing more fluorine which can be used for preparing calcium fluoride;
mixing the steps of three: adding the clean slag obtained in the step two, cement and fly ash into a mixing device, and stirring and mixing to obtain powder;
granulating in a fourth step: adding the powder obtained in the third step into a granulation disc 222 in a disc granulator 2, sequentially adding an exciting agent, a pore-forming agent and water glass, keeping the granulation disc 222 in a horizontal state, starting a water pump 232 to add water into the granulation disc 222 after internal materials are uniformly mixed, and starting an electric push rod 219 to enable the granulation disc 222 to be inclined for granulation after the water and the internal materials are uniformly mixed, so as to obtain a blank;
step five, cooling: and aging the blank obtained in the step four, adding the aged blank into a water bath kettle for steam curing, and cooling at room temperature to obtain the finished ceramsite.
And (3) performing pressurization and pressure relief operation at least once in the leaching reaction process in the first step.
The amount of water added in step four was 30 ml of water per 100 g of internal material.
Example 4:
the invention has the following manufacturing steps: step one, removing nitrogen from aluminum ash: adding aluminum ash and water into a high-pressure denitrification reactor 12 through an aluminum ash inlet 111 and a main water filling port 112 respectively, performing leaching reaction, wherein generated nitrogen is conveyed into a gas storage tank 122 through a first gas conveying pipe 121, opening a first valve 124, adding slurry obtained by the leaching reaction into a solid-liquid separator 13, performing solid-liquid separation, conveying obtained liquid-phase hydrolysate into a first liquid storage tank 132 through a first liquid conveying pipe 131, and obtaining a solid phase which is denitrification hydrolysis residue, wherein the obtained nitrogen can be used for preparing ammonia water, and the obtained hydrolysate can be used for preparing ammonium salt, so that the waste utilization rate is improved; step two, removing fluorine from aluminum ash: opening a second valve 134 to input the denitrified hydrolysis slag obtained in the first step into a defluorination reactor 14, adding a defluorination agent into the defluorination reactor 14 from a defluorination agent inlet 141, so that the denitrified hydrolysis slag and the defluorination agent are subjected to defluorination reaction, opening a third valve 143 after the reaction is finished, adding a defluorination mixture into an ultrasonic separation washer 15, performing solid-liquid separation on the water and the defluorination mixture added into the ultrasonic separation washer 15 from a sub-water inlet 153 to obtain a liquid phase defluorination solution, inputting the defluorination solution into a second liquid storage tank 152 from a second liquid conveying pipe 151, taking out the obtained solid phase as cleaning slag from a slag taking port 154 for later use, and obtaining a defluorination solution containing more fluorine which can be used for preparing calcium fluoride; mixing the steps of three: adding the clean slag obtained in the step two, cement and fly ash into a mixing device, and stirring and mixing to obtain powder; granulating in the fourth step: adding the powder obtained in the third step into a granulation disc 222 in a disc granulator 2, sequentially adding an exciting agent, a pore-forming agent and water glass, keeping the granulation disc 222 in a horizontal state, starting a water pump 232 to add water into the granulation disc 222 after internal materials are uniformly mixed, and starting an electric push rod 219 to enable the granulation disc 222 to be inclined for granulation after the water and the internal materials are uniformly mixed, so as to obtain a blank; step five, cooling: and (5) ageing the blank obtained in the step four, adding the blank into a water bath kettle for steam curing, and cooling at room temperature to obtain the finished ceramsite. The pretreatment equipment 1 is additionally arranged, the defluorination and denitrification process is carried out when aluminum ash is utilized, the phenomenon that the finished ceramsite contains more harmful elements is avoided, and simultaneously, nitrogen, hydrolysate and fluorine-containing solution generated in the defluorination and denitrification process can be reused and are respectively used as raw materials for preparing ammonia water, ammonium salt and calcium fluoride, so that the waste utilization rate is improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a device of aluminium ash utilization production haydite, includes preprocessing equipment (1) and disc granulator (2), its characterized in that:
the pretreatment equipment (1) comprises a shell (11), wherein a high-pressure denitrification reactor (12), a solid-liquid separator (13), a defluorination reactor (14) and an ultrasonic separation washer (15) are fixedly connected in the shell (11) from top to bottom in sequence, the high-pressure denitrification reactor (12) is communicated with one end of a gas pipe (121), the other end of the gas pipe (121) penetrates through the shell (11) and is communicated with a gas storage tank (122), the solid-liquid separator (13) is communicated with one end of a first liquid conveying pipe (131), the other end of the first liquid conveying pipe (131) penetrates through the shell (11) and is communicated with a first liquid storage tank (132), the ultrasonic separation washer (15) is communicated with one end of a second liquid conveying pipe (151), and the other end of the second liquid conveying pipe (151) penetrates through the shell (11) and is communicated with a second liquid storage tank (152);
the disc granulator (2) comprises a fixed seat part (21), a disc granulation part (22) and a uniform water adding part (23), and the disc granulation part (22) and the uniform water adding part (23) are fixedly connected to the fixed seat part (21);
the uniform water adding component (23) comprises a vertical support (233), an L-shaped support (236) and a motor cabin (238), two hinge plates (234) are fixedly connected to two sides of the top surface of the vertical support (233), two hinge shafts (235) are fixedly connected to two sides of the bottom surface of the L-shaped support (236), the two hinge shafts (235) are respectively and rotatably connected with the two hinge plates (234), the motor cabin (238) is located below the L-shaped support (236), one end of one hinge shaft (235) penetrates through the hinge plates (234) and is horizontally and fixedly connected with a transmission rod (2312), one end, far away from the hinge shaft (235), of the transmission rod (2312) is fixedly connected with an upper shaft rod (2313), the end of the motor cabin (238) is rotatably connected with a turntable (2310), the edge of the turntable (2310) is horizontally and fixedly connected with a lower shaft rod (2311), the lower shaft rod (2311) is rotatably connected with the bottom end of a connecting rod (2314), the top end of the connecting rod (2314) is rotatably connected with an upper speed reducing shaft (2313), one end, far away from the hinge shaft (235) of the L-shaped support (236) is fixedly connected with a spraying head (237), the motor cabin (238), and the motor cabin (239) is fixedly connected with the center of the motor cabin (239).
2. The device for producing ceramsite by recycling aluminum ash according to claim 1, is characterized in that: the high-pressure denitrification reactor (12) bottom surface communicates the top end of a first short pipe (123), the bottom end of the first short pipe (123) communicates with a solid-liquid separator (13), the bottom center position of the solid-liquid separator (13) is communicated with the top end of a second short pipe (133), the bottom end of the second short pipe (133) is communicated with a defluorination reactor (14), the bottom surface of the defluorination reactor (14) is communicated with the top end of a third short pipe (142), the bottom end of the third short pipe (142) is communicated with the top surface of an ultrasonic separation washer (15), the first short pipe (123) is fixedly connected with a first valve (124), the second short pipe (133) is fixedly connected with a second valve (134), and the third short pipe (142) is fixedly connected with a third valve (143).
3. The device for producing ceramsite by recycling aluminum ash according to claim 1, is characterized in that: the utility model discloses a high pressure denitrification reactor, including shell (11), aluminium ash inlet (111) and main filler (112) of shell (11) top surface rigid coupling, aluminium ash inlet (111) and main filler (112) all communicate high pressure denitrification reactor (12), slag tapping (154) are seted up to ultrasonic separation scrubber (15) lateral wall, shell (11) bottom surface corresponds and gets slag tapping (154) same horizontal position and rotate and connect and get sediment revolving door (113), shell (11) lateral wall rigid coupling defluorinating agent inlet (141) and sub filler (153), defluorinating agent inlet (141) intercommunication defluorinating reactor (14), sub filler (153) intercommunication ultrasonic separation scrubber (15).
4. The device for producing ceramsite by recycling aluminum ash according to claim 1, is characterized in that: fixing base part (21) includes base (211), two curb plates (212) of base (211) top surface both sides rigid coupling respectively, two horizontal rigid coupling main shaft (213) between curb plate (212) top surface, main shaft (213) rotate to be connected and change piece (214) bottom, change piece (214) bottom horizontal rigid coupling damping cover (2110), damping cover (2110) interference fit is in main shaft (213) outside.
5. The device for producing ceramsite by recycling aluminum ash according to claim 4, is characterized in that: the rotating block (214) is vertically and fixedly connected with a force application plate (2111) on one side of the bottom surface of the rotating block (214), the force application plate (2111) is perpendicular to a side plate (212), the position, far away from the side plate (212), of the top surface of the base (211) is vertically and fixedly connected with a second hinge block (218), a vertical groove (215) is vertically formed in one side, close to the second hinge block (218), of the center position of the force application plate (2111), a sliding block (216) is connected in the vertical groove (215) in a sliding mode, the side wall of the sliding block (216) is fixedly connected with a first hinge block (217), the first hinge block (217) is rotatably connected with one end of an electric push rod (219), and the other end of the electric push rod (219) is rotatably connected with the second hinge block (218).
6. The device for producing ceramsite by recycling aluminum ash according to claim 4, is characterized in that: disc granulation part (22) includes chassis (221), chassis (221) top surface is rotated and is connected granulation disc (222), chassis (221) rigid coupling is changeing piece (214) top surface, limit subassembly (223) is scraped to chassis (221) one side rigid coupling, rigid coupling disc motor (224) in chassis (221), disc motor (224) pivot end rigid coupling granulation disc (222) bottom surface central point puts, granulation disc (222) bottom surface rigid coupling sliding ring (226), annular (225) are seted up to chassis (221) top surface, sliding ring (226) rotate to be connected in annular (225).
7. The device for producing ceramsite by recycling aluminum ash according to claim 6, is characterized in that: the edge scraping assembly (223) comprises a supporting transverse plate (2231) horizontally and fixedly connected to one side of the base plate (221), the supporting transverse plate (2231) is far away from one end of the base plate (221) and is vertically and fixedly connected to the bottom end of a vertical plate (2232), the top end of the vertical plate (2232) is horizontally and fixedly connected to a top plate (2233), the top plate (2233) is located above the granulating disc (222), the bottom surface of the top plate (2233) is uniformly and fixedly connected with a plurality of first vertical rods (2234), the bottom end of the first vertical rods (2234) is fixedly connected to a flat scraper (2235), the flat scraper (2235) is in contact with the bottom surface of the granulating disc (222), the flat scraper (2235) is close to the top surface of one end of the edge of the granulating disc (222) and is vertically and fixedly connected to a side scraper (2236), the side scraper (2236) is in contact with the inner side wall of the granulating disc (222), the top end of the side scraper (2237) is vertically and is fixedly connected to the bottom surface of the top plate (2233) of the top plate (2237).
8. The device for producing ceramsite by recycling aluminum ash according to claim 6, is characterized in that: the uniform water adding part (23) further comprises a water tank (231), a water pump (232) is fixedly connected to the top surface of the water tank (231), the water pump (232) is fixedly connected to the bottom end of the vertical support (233), a first through hole (2315) is formed in the vertical support (233), a second through hole (2316) is formed in the L-shaped support (236), the first through hole (2315) and the second through hole (2316) are in clearance fit with a water conveying pipe (2317), one end of the water conveying pipe (2317) is communicated with the water pump (232), the other end of the water conveying pipe (2317) is communicated with a spraying head (237), the water tank (231) is fixedly connected to the top surface of the base (211), the spraying head (237) is located above the granulating disc (222), and the water tank (231) is communicated with a water adding port (3218).
9. The device and the method for producing ceramsite by resource utilization of aluminum ash according to claims 1-8 are characterized by comprising the following steps:
step one, removing nitrogen from aluminum ash: adding aluminum ash and water into a high-pressure denitrification reactor (12) through an aluminum ash inlet (111) and a main water filling port (112) respectively, carrying out leaching reaction, conveying generated nitrogen into a gas storage tank (122) through a first gas conveying pipe (121), opening a first valve (124), adding slurry obtained by the leaching reaction into a solid-liquid separator (13), carrying out solid-liquid separation, conveying obtained liquid-phase hydrolysate into a first liquid storage tank (132) through a first liquid conveying pipe (131), and obtaining a solid phase which is denitrification hydrolysis residue;
step two, removing fluorine from aluminum ash: opening a second valve (134) to input the denitrified hydrolysis slag obtained in the step one into a defluorination reactor (14), simultaneously adding a defluorination agent into the defluorination reactor (14) from a defluorination agent feeding port (141) to carry out defluorination reaction on the denitrified hydrolysis slag and the defluorination agent, opening a third valve (143) after the reaction is finished to add the defluorination mixture into an ultrasonic separation washer (15), and carrying out solid-liquid separation on the defluorination mixture and the water added into the ultrasonic separation washer (15) from a sub water feeding port (153) to obtain a liquid phase which is defluorination liquid, inputting the defluorination liquid into a second liquid storage tank (152) from a second liquid conveying pipe (151), and taking out the obtained solid phase which is clean slag from a slag taking port (154) for standby;
mixing in the third step: adding the clean slag obtained in the step two, cement and fly ash into a mixing device, and stirring and mixing to obtain powder;
granulating in the fourth step: adding the powder obtained in the step three into a granulating disc (222) in a disc granulator (2), sequentially adding an exciting agent, a pore-forming agent and water glass, keeping the granulating disc (222) in a horizontal state, starting a water pump (232) to add water into the granulating disc (222) after the internal materials are uniformly mixed, and after the water and the internal materials are uniformly mixed, starting an electric push rod (219) to enable the granulating disc (222) to be inclined for granulation to obtain a blank;
step five, cooling: and aging the blank obtained in the step four, adding the aged blank into a water bath kettle for steam curing, and cooling at room temperature to obtain the finished ceramsite.
10. The device and the method for producing ceramsite by resource utilization of aluminum ash according to claim 9 are characterized in that: and (3) performing at least one pressurization and pressure relief operation in the leaching reaction process in the first step, wherein the water adding amount in the fourth step is 30 milliliters of water per 100 grams of internal materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210828375.1A CN115253895A (en) | 2022-07-13 | 2022-07-13 | Device and method for producing ceramsite by recycling aluminum ash |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210828375.1A CN115253895A (en) | 2022-07-13 | 2022-07-13 | Device and method for producing ceramsite by recycling aluminum ash |
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| CN114288603A (en) * | 2021-12-28 | 2022-04-08 | 中国科学院过程工程研究所 | Method for removing nitrogen and fluorine from secondary aluminum ash |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN204485796U (en) * | 2015-03-10 | 2015-07-22 | 河北润泽致民农业科技有限公司 | A kind of granulating disc of solid fertile production |
| CN104841333A (en) * | 2015-04-28 | 2015-08-19 | 芜湖三六机械有限公司 | Disk granulating machine |
| CN209254683U (en) * | 2018-12-04 | 2019-08-16 | 山东土木启生物科技有限公司 | Micro- fertilizer granulating disc in one kind |
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