CN117566779A - Preparation process and preparation device of polyaluminum chloride - Google Patents
Preparation process and preparation device of polyaluminum chloride Download PDFInfo
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- CN117566779A CN117566779A CN202311547043.7A CN202311547043A CN117566779A CN 117566779 A CN117566779 A CN 117566779A CN 202311547043 A CN202311547043 A CN 202311547043A CN 117566779 A CN117566779 A CN 117566779A
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- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 70
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 52
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 52
- 238000005406 washing Methods 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 53
- 238000006243 chemical reaction Methods 0.000 claims description 31
- 238000000227 grinding Methods 0.000 claims description 31
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 12
- 238000001035 drying Methods 0.000 claims description 11
- 239000004411 aluminium Substances 0.000 claims description 10
- 238000004140 cleaning Methods 0.000 claims description 10
- 238000003860 storage Methods 0.000 claims description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 6
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 238000010517 secondary reaction Methods 0.000 claims description 6
- 229910001388 sodium aluminate Inorganic materials 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 238000007781 pre-processing Methods 0.000 claims description 4
- 238000007086 side reaction Methods 0.000 claims description 4
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 3
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 3
- 239000006228 supernatant Substances 0.000 claims description 3
- 239000002699 waste material Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 9
- 208000005156 Dehydration Diseases 0.000 abstract description 3
- 230000018044 dehydration Effects 0.000 abstract description 3
- 238000006297 dehydration reaction Methods 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 3
- 238000001125 extrusion Methods 0.000 abstract description 2
- 239000012535 impurity Substances 0.000 abstract description 2
- 239000000843 powder Substances 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 238000010981 drying operation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- 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
- C01F7/00—Compounds of aluminium
- C01F7/48—Halides, with or without other cations besides aluminium
- C01F7/56—Chlorides
- C01F7/57—Basic aluminium chlorides, e.g. polyaluminium chlorides
-
- 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
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
-
- 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
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
- B01J4/007—Feed or outlet devices as such, e.g. feeding tubes provided with moving parts
-
- 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
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/008—Feed or outlet control devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C7/00—Crushing or disintegrating by disc mills
- B02C7/02—Crushing or disintegrating by disc mills with coaxial discs
- B02C7/08—Crushing or disintegrating by disc mills with coaxial discs with vertical axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G65/00—Loading or unloading
- B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
- B65G65/34—Emptying devices
- B65G65/40—Devices for emptying otherwise than from the top
- B65G65/46—Devices for emptying otherwise than from the top using screw conveyors
-
- 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
- B01J2204/00—Aspects relating to feed or outlet devices; Regulating devices for feed or outlet devices
- B01J2204/002—Aspects relating to feed or outlet devices; Regulating devices for feed or outlet devices the feeding side being of particular interest
-
- 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
- B01J2204/00—Aspects relating to feed or outlet devices; Regulating devices for feed or outlet devices
- B01J2204/007—Aspects relating to the heat-exchange of the feed or outlet devices
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Food Science & Technology (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a preparation process and a preparation device of polyaluminium chloride, and relates to the technical field of chemical equipment, wherein the process comprises the following steps: the method is characterized in that the pretreatment is carried out on the polyaluminium chloride processing raw materials according to the existing requirements, the quality of earlier washing is ensured, the impurity content in the product is reduced, the extrusion dehydration treatment can be completed in the conveying process, the aluminum ash is ground into powder, the material is timely dried for separation, the influence of moisture on subsequent processing is avoided, and the processing quality is ensured.
Description
Technical Field
The invention relates to the technical field of chemical equipment, in particular to a preparation process and a preparation device of polyaluminium chloride.
Background
Polyaluminium chloride (PAC) is an inorganic novel water purification material, the stability is good, the water area is wide, the hydrolysis speed is high, the adsorption capacity is high, the device is widely applied to the fields of drinking water, industrial water and sewage treatment, the recovered aluminum ash is required to be washed with water, nitrogen and salt are removed when the preparation is carried out, the washed aluminum ash is filtered, dried and crushed to obtain secondary aluminum ash, after the pretreatment is finished, the crushed aluminum ash is sent into a reaction kettle to react, for example, the patent No. CN112794353B discloses a method for preparing polyaluminium chloride by recycling the aluminum ash.
Based on the above, a preparation process and a preparation device of polyaluminum chloride are provided, and the defects of the existing device can be overcome.
Disclosure of Invention
The invention aims to provide a preparation process and a preparation device of polyaluminium chloride, which are used for solving the problem of poor pretreatment in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a process for preparing polyaluminium chloride, comprising the following steps:
step one: pretreating aluminum ash to obtain clean aluminum ash, dividing the obtained aluminum ash into main reaction aluminum ash and auxiliary reaction aluminum ash according to the mass ratio of 6:1, adding recovered waste hydrochloric acid and water into the main reaction aluminum ash according to a certain proportion, reacting at a certain temperature and stirring speed to obtain an aluminum chloride solution, adding caustic soda and water into the auxiliary reaction aluminum ash according to a certain proportion, and reacting at a certain temperature and stirring speed to obtain a sodium aluminate solution;
step two: dividing the obtained aluminum chloride solution into a main reaction solution and a secondary reaction solution according to the volume ratio of 4:1, carrying out primary constant temperature curing on the main reaction solution, filtering the secondary reaction solution, reacting with ammonia water to obtain aluminum hydroxide, filtering the primary reaction solution after primary constant temperature curing to remove filter residues, adding the obtained aluminum hydroxide into the main reaction solution, adjusting the pH value to be 5-6, continuously carrying out secondary constant temperature curing, and adding the sodium aluminate solution obtained in the second step 2h before the secondary constant temperature curing is finished to obtain a cured mixture;
step three: filtering and centrifuging the cured mixture to obtain supernatant, and obtaining liquid polyaluminum chloride.
Based on the technical scheme, the invention also provides the following optional technical schemes:
the utility model provides a preparation facilities of polyaluminium chloride, includes the first reation kettle that is used for carrying out the main reaction and is used for carrying out the second reation kettle of side reaction, first reation kettle and second reation kettle upper end are equipped with a conveying pipe that is used for reinforced respectively, conveying pipe upper end and branch material conveying section of thick bamboo intercommunication, the inside conveying unit that is arranged in sending into first reation kettle and second reation kettle respectively with the material after smashing that is equipped with of branch material conveying section of thick bamboo, the conveying unit top is equipped with the collecting box that is used for receiving the material, the collecting box top is equipped with the preprocessing unit that is used for carrying out pretreatment to the aluminium lime-ash.
In one alternative: the pretreatment unit comprises a feeding barrel which is horizontally arranged, a storage barrel for storing aluminum ash is arranged at the left upper end of the feeding barrel, a pushing shaft is arranged in the feeding barrel, a pushing motor which is used for driving the pushing shaft to rotate is arranged at the left end of the pushing shaft, a washing component which is used for washing the aluminum ash is arranged at the outer side of the feeding barrel, a feeding blade which is used for pushing materials is arranged at the outer side of the pushing shaft, a discharging barrel for discharging is arranged at the right end of the feeding barrel, and a crushing and drying component which is used for crushing the washed materials is arranged below the discharging barrel.
In one alternative: the drying and crushing assembly comprises a fixed crushing disc arranged below a blanking barrel, the upper end surface of the fixed crushing disc is a conical surface with high middle and low periphery, a movable grinding disc matched with the fixed crushing disc is arranged above the fixed crushing disc, a central perforation for blanking is arranged at the middle position of the movable grinding disc, the movable grinding disc is connected with a rotary driving part for driving the movable grinding disc to rotate, a gap between the fixed crushing disc and the movable grinding disc is gradually increased from inside to outside, a distributing plate is slidably arranged outside the fixed crushing disc, the lower end of the distributing plate is connected with a side block outside the fixed crushing disc through a vibration spring, a vibration part for driving the distributing plate to shake up and down is arranged on the movable grinding disc, and a heating block for heating materials is arranged on the distributing plate and the fixed crushing disc.
In one alternative: the vibration piece comprises a vertical rod arranged at the upper end of the distributing plate, a pressing roller is rotatably arranged at the upper end of the vertical rod, and a plurality of pushing blocks for generating pushing force to the pressing roller are arranged on the outer side of the movable grinding disc.
In one alternative: the rotary driving piece comprises a driven toothed ring arranged at the upper end of the movable grinding disc, the driven toothed ring is meshed with an intermediate gear, the intermediate gear is meshed with a driving gear, the driving gear is arranged at the output end of the pushing shaft, and the intermediate gear is rotatably arranged on the right side of the discharging barrel.
In one alternative: the washing subassembly is equipped with the water catch bowl including setting up the filter screen in feeding cylinder bottom, the feeding cylinder below at filter screen place, the promotion axle outside at water catch bowl place is equipped with and is used for the material piece of raising that turns over aluminium lime-ash, raises the material piece and can make aluminium lime-ash disperse, helps improving the cleaning performance, the feeding cylinder upper end at water catch bowl place is equipped with a water tank that is used for caching water, water tank upper end is equipped with the delivery pipe that is used for supplying water, the promotion axle surface at water tank place is equipped with the feed water hole, be equipped with the toper passageway that contracts gradually in the feeding cylinder on water catch bowl right side, promote the axle surface be equipped with toper passageway assorted toper blade, the feeding cylinder lower surface at toper passageway place is equipped with the hole that leaks.
In one alternative: the material lifting part comprises a plurality of material lifting side rods arranged on the outer side of the pushing shaft, and a material lifting plate for grabbing materials is arranged at the end parts of the material lifting side rods.
In one alternative: the conveying unit comprises a distributing shaft penetrating through the distributing and conveying barrel, the end part of the distributing shaft is connected with a distributing motor used for driving the distributing motor to rotate, a receiving opening used for receiving materials is arranged in the middle of the upper end of the distributing and conveying barrel, two sides of the distributing shaft taking the receiving opening as the center are respectively provided with a second conveying auger used for conveying materials and a first conveying auger used for conveying materials, the pushing speed of the first conveying auger is greater than that of the second conveying auger, and the pushing speed of the first conveying auger is six times that of the second conveying auger.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the pretreatment is carried out on the polyaluminium chloride processing raw material aiming at the existing requirements, the quality of early washing is ensured, the impurity content in the product is reduced, the extrusion dehydration treatment can be completed in the conveying process, then the aluminum ash is ground into powder, the material is timely dried after being separated, the influence of moisture on the subsequent processing is avoided, and the processing quality is ensured.
Drawings
FIG. 1 is a schematic view of the structure of one side of the present invention.
Fig. 2 is a schematic structural diagram of the other side of the present invention.
Fig. 3 is a schematic view of the internal structure of the present invention.
Fig. 4 is a schematic view of the structure of the present invention at the position a in fig. 3.
Fig. 5 is a schematic view of the structure of the fixed shredder plate and the movable abrasive plate of the present invention.
Fig. 6 is a schematic structural view of a feed distributing and conveying cylinder of the invention.
Reference numerals annotate: the device comprises a storage cylinder 11, a water supply pipe 12, a buffer water tank 13, a pushing shaft 14, a blanking cylinder 15, a pushing motor 16, a feeding cylinder 17, a feeding blade 18, a lifting plate 19, a water collecting bucket 20, a vibrating spring 21, a feeding pipe 22, a first reaction kettle 23, a second reaction kettle 24, a distributing motor 25, a distributing conveying cylinder 26, a collecting box 27, a distributing plate 28, a fixed crushing disc 29, a pressing roller 30, a pushing block 31, a movable grinding disc 32, an intermediate gear 33, a driving gear 34, a second conveying auger 35, a first conveying auger 36 and a conical blade 37.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent.
In one embodiment, as shown in fig. 1-6, a process for preparing polyaluminum chloride comprises the steps of:
step one: pretreating aluminum ash to obtain clean aluminum ash, dividing the obtained aluminum ash into main reaction aluminum ash and auxiliary reaction aluminum ash according to the mass ratio of 6:1, adding recovered waste hydrochloric acid and water into the main reaction aluminum ash according to a certain proportion, reacting at a certain temperature and stirring speed to obtain an aluminum chloride solution, adding caustic soda and water into the auxiliary reaction aluminum ash according to a certain proportion, and reacting at a certain temperature and stirring speed to obtain a sodium aluminate solution;
step two: dividing the obtained aluminum chloride solution into a main reaction solution and a secondary reaction solution according to the volume ratio of 4:1, carrying out primary constant temperature curing on the main reaction solution, filtering the secondary reaction solution, reacting with ammonia water to obtain aluminum hydroxide, filtering the primary reaction solution after primary constant temperature curing to remove filter residues, adding the obtained aluminum hydroxide into the main reaction solution, adjusting the pH value to be 5-6, continuously carrying out secondary constant temperature curing, and adding the sodium aluminate solution obtained in the second step 2h before the secondary constant temperature curing is finished to obtain a cured mixture;
step three: filtering and centrifuging the cured mixture to obtain supernatant fluid to obtain liquid polyaluminum chloride;
the utility model provides a preparation facilities of polyaluminum chloride, includes the first reation kettle 23 that is used for carrying out the main reaction and is used for carrying out the second reation kettle 24 of side reaction, first reation kettle 23 and second reation kettle 24 upper end are equipped with a conveying pipe 22 that is used for reinforced respectively, conveying pipe 22 upper end and horizontal feed cylinder intercommunication, inside be equipped with be used for sending the material after smashing respectively into first reation kettle 23 and second reation kettle 24's conveying unit, the conveying unit top is equipped with the collection box 27 that is used for receiving the material, the collection box 27 top is equipped with the preprocessing unit that is used for carrying out the preliminary treatment to the aluminium ash, and the preprocessing unit is used for washing and grinding and drying treatment to the aluminium ash, has guaranteed the quality of aluminium ash;
the pretreatment unit comprises a horizontally arranged feeding barrel 17, a storage barrel 11 for storing aluminum ash is arranged at the left upper end of the feeding barrel 17, a pushing shaft 14 is arranged in the feeding barrel 17, a pushing motor 16 for driving the pushing shaft 14 to rotate is arranged at the left end of the pushing shaft 14, a washing component for washing the aluminum ash is arranged at the outer side of the feeding barrel 17, a feeding blade 18 for pushing the material is arranged at the outer side of the pushing shaft 14, a discharging barrel 15 is arranged at the right end of the feeding barrel 17, a crushing and drying component for crushing the washed material is arranged below the discharging barrel 15, and the material is dried and crushed through the crushing and drying component, so that the moisture in the material is eliminated;
the drying and crushing assembly comprises a fixed crushing disc 29 arranged below a blanking barrel 15, the upper end surface of the fixed crushing disc 29 is a conical surface with high middle and low periphery, a movable grinding disc 32 matched with the fixed crushing disc 29 is arranged above the fixed crushing disc 29, a central perforation for blanking is arranged in the middle of the movable grinding disc 32, the movable grinding disc 32 is connected with a rotary driving part for driving the movable grinding disc 32 to rotate, a gap between the fixed crushing disc 29 and the movable grinding disc 32 is gradually increased from inside to outside, so that materials can be crushed gradually, a distributing plate 28 is slidably arranged on the outer side of the fixed crushing disc 29, the lower end of the distributing plate 28 is connected with a side block on the outer side of the fixed crushing disc 29 through a vibration spring 21, the movable grinding disc 32 is provided with a vibration part for driving the distributing plate 28 to shake up and down, the crushed materials are dispersed continuously through the vibration part so as to facilitate better drying and dehydration treatment, the distributing plate 28 and the fixed crushing disc 29 are provided with heating blocks for heating the materials, so that the drying and crushing disc can be provided with a plurality of rotary supporting rods, the rotary positioning plates 28 can be positioned through the rotary positioning plates 28, and a plurality of positioning rings are arranged on the rotary plates 28, and the rotary positioning plates can be positioned through the rotary positioning plates 28;
the vibration piece comprises a vertical rod arranged at the upper end of the material separating plate 28, the upper end of the vertical rod is rotatably provided with a pressing roller 30, the outer side of the movable grinding disc 32 is provided with a plurality of pushing blocks 31 for generating pushing force to the pressing roller 30, so that when the movable grinding disc 32 rotates, the pushing blocks 31 can generate pushing force to the pressing roller 30, and the material separating plate 28 can float up and down, so that crushed materials are more dispersed;
the rotary driving piece comprises a driven toothed ring arranged at the upper end of the movable grinding disc 32, the driven toothed ring is meshed with an intermediate gear 33, the intermediate gear 33 is meshed with a driving gear 34, the driving gear 34 is arranged at the output end of the pushing shaft 14, the intermediate gear 33 is rotatably arranged on the right side of the blanking barrel 15, and under the driving of the pushing shaft 14, the driving gear 34 is matched with the intermediate gear 33 to drive the movable grinding disc 32 to rotate so as to provide power for grinding;
the washing assembly comprises a filter screen arranged at the bottom of a feeding barrel 17, a water collecting hopper 20 is arranged below the feeding barrel 17 where the filter screen is arranged, a material lifting part for turning over aluminum ash is arranged on the outer side of a pushing shaft 14 where the water collecting hopper 20 is arranged, the material lifting part can enable the aluminum ash to be dispersed, the washing assembly is beneficial to improving the cleaning effect, a water storage tank 13 for storing water is arranged at the upper end of the feeding barrel 17 where the water collecting hopper 20 is arranged, a water supply pipe 12 for supplying water is arranged at the upper end of the water storage tank 13, a feed water hole is formed in the surface of the pushing shaft 14 where the water storage tank 13 is arranged, so that the cleaning water enters the water storage tank 13 along the water supply pipe 12 and then enters the feeding barrel 17 along the feed water hole, the aluminum ash is washed, a tapered channel which gradually contracts is arranged in the feeding barrel 17 on the right side of the water collecting hopper 20, the material is extruded through the tapered channel, a tapered blade 37 matched with the tapered channel is arranged on the surface of the pushing shaft 14, a water leakage hole is formed in the lower surface of the feeding barrel 17 where the tapered channel is arranged, the material is gradually extruded when flowing in the tapered channel, and the water is gradually extruded, and the water is primarily dried, so that the primary drying treatment is completed;
the material lifting part comprises a plurality of material lifting side rods arranged on the outer side of the pushing shaft 14, a material lifting plate 19 for grabbing materials is arranged at the end part of each material lifting side rod, when the material lifting plate 19 rotates to the lower side, materials at the bottom of the feeding cylinder 17 are lifted, then the lifted materials are scattered along with the rotation, cleaning water flushed out is matched, cleaning of aluminum ash is completed, cleaning quality is guaranteed, a plurality of dividing holes are distributed on the surface of the material lifting plate 19, and therefore sundries can be washed away by spraying water when the materials are lifted;
the conveying unit comprises a distributing shaft penetrating through the distributing conveying cylinder 26, the end part of the distributing shaft is connected with a distributing motor 25 for driving the distributing shaft to rotate, a receiving opening for receiving materials is arranged in the middle of the upper end of the distributing conveying cylinder 26, a second conveying auger 35 for conveying materials and a first conveying auger 36 for conveying materials are respectively arranged on two sides of the distributing shaft taking the receiving opening as the center, the pushing speed of the first conveying auger 36 is greater than that of the second conveying auger 35, and the pushing speed of the first conveying auger 36 is six times that of the second conveying auger 35, so that the blanking can be quickly pushed to two sides, and the feeding is completed;
during actual use, raw materials are sent into the storage cylinder 11, the pushing shaft 14 is driven to rotate by the pushing motor 16, the feeding blades 18 can convey materials in the storage cylinder 11 to the right, in the conveying process, aluminum ash is cleaned by the cleaning assembly, material can be turned over in the cleaning process, the cleaning effect is guaranteed, along with conveying, the aluminum ash can be extruded and dehydrated, extruded materials fall on the middle position of the fixed crushing disc 29, the aluminum ash can slide along the middle of the fixed crushing disc 29 to the periphery, the aluminum ash can be gradually ground into a powdery structure by the movable grinding disc 32 and the fixed crushing disc 29, the heating is carried out simultaneously in the grinding process, water can be removed, the crushed materials can be dispersed along the distributing plate 28, the drying operation is further completed in the sliding process, and the crushed materials are respectively sent into the second reaction kettle 24 and the first reaction kettle 23 for reaction through the material distributing conveying cylinder 26.
The foregoing is merely specific embodiments of the disclosure, but the protection scope of the disclosure is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the disclosure, and it is intended to cover the scope of the disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.
Claims (10)
1. The preparation process of the polyaluminum chloride is characterized by comprising the following steps of:
step one: pretreating aluminum ash to obtain clean aluminum ash, taking the obtained aluminum ash as main reaction aluminum ash and side reaction aluminum ash, adding recovered waste hydrochloric acid and water into the main reaction aluminum ash according to a certain proportion, reacting at a certain temperature and stirring speed to obtain aluminum chloride solution, adding caustic soda and water into the side reaction aluminum ash according to a certain proportion, and reacting at a certain temperature and stirring speed to obtain sodium aluminate solution;
step two: dividing the obtained aluminum chloride solution into a main reaction solution and a secondary reaction solution, carrying out primary constant-temperature curing on the main reaction solution, filtering the secondary reaction solution, reacting with ammonia water to obtain aluminum hydroxide, filtering the primary reaction solution after primary constant-temperature curing to remove filter residues, adding the obtained aluminum hydroxide into the main reaction solution, regulating the pH value to continue secondary constant-temperature curing, and adding the sodium aluminate solution obtained in the second step 2 hours before the secondary constant-temperature curing is finished to obtain a cured mixture;
step three: filtering and centrifuging the cured mixture to obtain supernatant, and obtaining liquid polyaluminum chloride.
2. The utility model provides a preparation facilities of polyaluminium chloride, its characterized in that, including first reation kettle (23) that are used for carrying out the main reaction and be used for carrying out second reation kettle (24), first reation kettle (23) and second reation kettle (24) upper end are equipped with one respectively and are used for reinforced conveying pipe (22), conveying pipe (22) upper end and branch feed cylinder (26) intercommunication, divide feed cylinder (26) inside to be equipped with and be used for sending into the conveying unit in first reation kettle (23) and second reation kettle (24) respectively with the material after smashing, the conveying unit top is equipped with collection box (27) that are used for receiving the material, collection box (27) top is equipped with the preprocessing unit that is used for carrying out preliminary treatment to the aluminium lime-ash.
3. The preparation device of polyaluminum chloride according to claim 2, wherein the pretreatment unit comprises a horizontally arranged feeding cylinder (17), a storage cylinder (11) for storing aluminum ash is arranged at the left upper end of the feeding cylinder (17), a pushing shaft (14) is arranged in the feeding cylinder (17), a pushing motor (16) for driving the pushing shaft (14) to rotate is arranged at the left end of the pushing shaft, a washing component for washing the aluminum ash is arranged at the outer side of the feeding cylinder (17), a feeding blade (18) for pushing materials is arranged at the outer side of the pushing shaft (14), a discharging cylinder (15) for discharging materials is arranged at the right end of the feeding cylinder (17), and a crushing and drying component for crushing the washed materials is arranged below the discharging cylinder (15).
4. A device for preparing polyaluminium chloride according to claim 3, characterized in that the drying and crushing assembly comprises a fixed crushing disc (29) arranged below the lower charging barrel (15), the upper end surface of the fixed crushing disc (29) is a conical surface with high middle and low periphery, a movable grinding disc (32) matched with the fixed crushing disc (29) is arranged above the fixed crushing disc (29), a central perforation for blanking is arranged in the middle of the movable grinding disc (32), the movable grinding disc (32) is connected with a rotary driving piece for driving the movable grinding disc (32) to rotate, a gap between the fixed crushing disc (29) and the movable grinding disc (32) is gradually increased from inside to outside, a distributing plate (28) is slidably arranged outside the fixed crushing disc (29), the lower end of the distributing plate (28) is connected with a side block outside the fixed crushing disc (29) through a vibration spring (21), a vibration piece for driving the distributing plate (28) to shake up and down is arranged on the movable grinding disc (32), and the distributing plate (28) and the fixed crushing disc (32) are provided with a heating block for heating materials.
5. The apparatus for preparing polyaluminium chloride according to claim 4, wherein the vibration member comprises a vertical rod arranged at the upper end of the material separating plate (28), a pressing roller (30) is rotatably arranged at the upper end of the vertical rod, and a plurality of pushing blocks (31) for generating pushing force to the pressing roller (30) are arranged at the outer side of the movable grinding disc (32).
6. The apparatus for preparing polyaluminium chloride according to claim 4, wherein the rotary driving member comprises a driven toothed ring arranged at the upper end of the movable grinding disc (32), the driven toothed ring is meshed with an intermediate gear (33), the intermediate gear (33) is meshed with a driving gear (34), the driving gear (34) is arranged at the output end of the pushing shaft (14), and the intermediate gear (33) is rotatably arranged at the right side of the blanking cylinder (15).
7. The preparation facilities of polyaluminum chloride according to claim 3, characterized in that, washing subassembly is including setting up the filter screen in feed cylinder (17) bottom, and feed cylinder (17) below at filter screen place is equipped with water catch bowl (20), the promotion axle (14) outside at water catch bowl (20) place is equipped with the material piece that is used for turning over aluminium lime-ash, and the material piece that raises can make aluminium lime-ash disperse, helps improving the cleaning performance, feed cylinder (17) upper end at water catch bowl (20) place is equipped with a water tank (13) that is used for caching water, water tank (13) upper end is equipped with delivery pipe (12) that are used for supplying water, the promotion axle (14) surface at water tank (13) place is equipped with the feed water hole, be equipped with the taper channel that contracts gradually in feed cylinder (17) at water catch bowl (20) right side, promotion axle (14) surface be equipped with taper channel assorted taper blade (37), the feed cylinder (17) lower surface at taper channel place is equipped with the hole that leaks.
8. A device for preparing aluminium polychloride according to claim 3, characterized in that the said material lifting member comprises a plurality of material lifting side bars arranged outside the pushing shaft (14), the ends of which are provided with lifting plates (19) for gripping material.
9. The apparatus for preparing polyaluminum chloride according to claim 8, characterized in that a plurality of dividing holes are distributed on the surface of the lifting plate (19).
10. A device for preparing polyaluminum chloride according to claim 3, characterized in that the conveying unit comprises a distributing shaft penetrating through the distributing and conveying barrel (26), the end part of the distributing shaft is connected with a distributing motor (25) for driving the distributing shaft to rotate, a receiving opening for receiving materials is arranged in the middle of the upper end of the distributing and conveying barrel (26), a second conveying auger (35) for conveying materials and a first conveying auger (36) for conveying materials are respectively arranged on two sides of the distributing shaft taking the receiving opening as the center, and the pushing speed of the first conveying auger (36) is greater than that of the second conveying auger (35).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311547043.7A CN117566779A (en) | 2023-11-17 | 2023-11-17 | Preparation process and preparation device of polyaluminum chloride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311547043.7A CN117566779A (en) | 2023-11-17 | 2023-11-17 | Preparation process and preparation device of polyaluminum chloride |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117566779A true CN117566779A (en) | 2024-02-20 |
Family
ID=89891241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311547043.7A Pending CN117566779A (en) | 2023-11-17 | 2023-11-17 | Preparation process and preparation device of polyaluminum chloride |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117566779A (en) |
-
2023
- 2023-11-17 CN CN202311547043.7A patent/CN117566779A/en active Pending
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