CN112827451A - Aluminum ash hydrolysis nitrogen removal method based on aluminum ash hydrolysis nitrogen removal device - Google Patents
Aluminum ash hydrolysis nitrogen removal method based on aluminum ash hydrolysis nitrogen removal device Download PDFInfo
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- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 185
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 185
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 86
- 238000006460 hydrolysis reaction Methods 0.000 title claims abstract description 55
- 230000007062 hydrolysis Effects 0.000 title claims abstract description 49
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000006243 chemical reaction Methods 0.000 claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 238000003756 stirring Methods 0.000 claims abstract description 24
- 239000002699 waste material Substances 0.000 claims abstract description 15
- 230000008569 process Effects 0.000 claims abstract description 6
- 238000007670 refining Methods 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 14
- 238000004064 recycling Methods 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 4
- 230000007246 mechanism Effects 0.000 claims description 4
- 230000003301 hydrolyzing effect Effects 0.000 claims 2
- 239000011449 brick Substances 0.000 abstract description 13
- 230000008901 benefit Effects 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000002360 preparation method Methods 0.000 abstract description 5
- 238000003912 environmental pollution Methods 0.000 abstract description 4
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 abstract description 3
- 239000004411 aluminium Substances 0.000 description 40
- 238000003860 storage Methods 0.000 description 10
- 239000002351 wastewater Substances 0.000 description 9
- 239000002893 slag Substances 0.000 description 6
- 150000003839 salts Chemical class 0.000 description 4
- 239000004927 clay Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 230000003028 elevating effect Effects 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 231100001261 hazardous Toxicity 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 239000002910 solid waste Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 241001417490 Sillaginidae Species 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000002920 hazardous waste Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000012047 saturated solution Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
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- 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
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
-
- 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
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
-
- 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
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/023—Chemical treatment
-
- 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
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention provides an aluminum ash hydrolysis nitrogen removal method based on an aluminum ash hydrolysis nitrogen removal device, which comprises the following steps: s10, feeding; s20, allowing water in the reaction kettle to flow into the aluminum ash containing barrel through meshes of a filter screen structure at the bottom of the aluminum ash containing barrel to be mixed with the aluminum ash; s30, starting a stirring motor, stirring by a stirring rod in the aluminum ash containing barrel, and accelerating the hydrolysis reaction process; and S40, starting the second motor after the reaction is completed to enable the aluminum ash containing barrel to be separated from the reaction kettle, starting a third motor to shorten the distance between the barrel bottom and the piston, and accelerating the water loss in the aluminum ash containing barrel. The aluminum ash hydrolysis nitrogen removal device is designed, the full-automatic water nitrogen removal of the aluminum ash is realized, the production efficiency is improved, an equipment foundation is provided for the preparation of the aluminum ash non-sintered bricks, and the problem of environmental pollution caused by waste residues is solved while the economic benefit is obtained.
Description
Technical Field
The invention relates to the technical field of aluminum ash treatment, in particular to an aluminum ash hydrolysis nitrogen removal method based on an aluminum ash hydrolysis nitrogen removal device.
Background
Aluminum ash is generated in the processes of electrolytic aluminum oxide, metal aluminum casting and secondary aluminum processing. The aluminum ash has large nitrogen content, and comprises the following main chemical components in percentage by weight: 2-15% of simple substance aluminum, 15-30% of aluminum oxide, 10-40% of aluminum nitride, and other oxides and salts. The aluminum ash slag is used as industrial waste slag, has complex components, and causes harm to the environment when being piled up and buried. The main types of hazards include heavy metal pollution, dust pollution and gas pollution, which seriously affect human health. According to the latest national hazardous waste catalogue (2020 revision manuscript), the aluminum ash belongs to non-ferrous metal smelting waste (HW48), the hazardous property is T & R, and the storage, transportation and disposal of the aluminum ash are implemented according to the system and the procedure of hazardous solid waste, so that the aluminum ash cannot be transferred across the environment and disposed by unqualified enterprise institutions. According to the tax table of the environmental protection tax item, the unit for discharging the aluminous ash shall collect the discharge tax of 1000 yuan/ton dangerous solid waste 1 month and 1 day in 2018. Therefore, the treatment technology of the aluminous ash has become a problem to be solved urgently in the field.
According to statistics, more than 7000 million tons of standard coal is consumed for producing clay bricks every year in China. In order to protect cultivated land, the non-sintered brick can be rapidly popularized instead of high-energy-consumption building materials such as clay bricks, sintered bricks and the like. Compared with the traditional sintered clay brick, the non-sintered brick has the advantages of good practicability, low energy consumption, outstanding social benefit and the like. Reasonably utilizes local aluminum ash resources, develops a novel non-sintered brick with high performance, mass production and environmental protection benefit, solves the problem of environmental pollution caused by waste residues while obtaining economic benefit, and is a practical and effective waste residue resource utilization way. However, most of the existing preparation processes are manually operated by a plurality of machines, the production efficiency is low, and a highly automated aluminum ash baking-free brick preparation machine is urgently needed.
Disclosure of Invention
In order to solve the problems, the invention provides an aluminum ash hydrolysis nitrogen removal method based on an aluminum ash hydrolysis nitrogen removal device, and the aluminum ash hydrolysis nitrogen removal device is designed, so that the aluminum ash containing barrel can be driven by a second motor to move up and down, the full-automatic water nitrogen removal of aluminum ash is realized, the production efficiency is improved, an equipment foundation is provided for the preparation of aluminum ash non-sintered bricks, the aluminum ash slag can be utilized more reasonably and efficiently, and the problem of environmental pollution caused by waste slag is solved while the economic benefit is obtained.
In order to achieve the above purpose, the invention adopts a technical scheme that:
an aluminum ash hydrolysis nitrogen removal method based on an aluminum ash hydrolysis nitrogen removal device comprises the following steps: s10, starting a third motor to separate a piston from an aluminum ash containing barrel, adding screened aluminum ash into the aluminum ash containing barrel through a gap between the piston and the aluminum ash containing barrel, and simultaneously adding a proper amount of water into the reaction kettle; s20, starting the third motor to place the piston in the aluminum ash containing barrel, starting the second motor to place the aluminum ash containing barrel in the reaction kettle, and enabling water in the reaction kettle to flow into the aluminum ash containing barrel through a mesh of a filter screen structure at the bottom of the aluminum ash containing barrel to be mixed with the aluminum ash; s30, starting a stirring motor, stirring by a stirring rod in the aluminum ash containing barrel, and accelerating the hydrolysis reaction process; and S40, starting the second motor after the reaction is completed to enable the aluminum ash containing barrel to be separated from the reaction kettle, starting a third motor to shorten the distance between the barrel bottom and the piston, and accelerating the water loss in the aluminum ash containing barrel.
Further, the aluminum ash hydrolysis nitrogen removal device comprises: the reaction kettle is of an open barrel-shaped structure, heating devices are arranged in the side wall and the bottom wall of the reaction kettle, and the bottom of the reaction kettle is connected with a waste liquid recycling device through a recycling liquid outlet; the aluminum ash containing barrel is positioned above the reaction kettle, the barrel bottom is of a filter screen structure, and the outer diameter of the aluminum ash containing barrel is smaller than the inner diameter of the reaction kettle; the lifting mechanism comprises a first screw and the second motor, the second motor is erected on a cantilever beam through a base, the cantilever beam is positioned above the reaction kettle, the second motor is connected with the piston through the first screw, and the second motor controls the aluminum ash containing barrel to lift through the first screw; and the first motor is arranged on the cantilever beam and connected with the base, and the first motor can control the first screw rod to slide on the cantilever beam.
Furthermore, a stirring device is arranged below the piston, and a stirring rod of the stirring device extends into the aluminum ash containing barrel.
Further, the third motor is arranged at the lower part of the first screw rod through a connecting rod, and the third motor is connected with the wall of the aluminum ash containing barrel through a second screw rod.
Furthermore, the filter screen detachable of barrel head sets up the bottom of the lateral wall of aluminium ash containing bucket.
Further, the method also comprises the step of S50 starting a first motor, conveying the aluminum ash containing barrel to the upper part of the aluminum ash mud refining device, and opening the barrel bottom to output the hydrolyzed aluminum ash into the aluminum ash mud refining device.
Further, the step S50 further includes: and starting the third motor, and pushing the hydrolyzed aluminum ash to be output to the aluminum ash mud refining device by the piston.
The aluminum ash hydrolysis nitrogen removal method based on the aluminum ash hydrolysis nitrogen removal device provided by the invention is designed, the aluminum ash hydrolysis nitrogen removal device can drive the aluminum ash containing barrel to move up and down through the second motor, the full-automatic water nitrogen removal of the aluminum ash is realized, the production efficiency is improved, an equipment foundation is provided for the preparation of aluminum ash non-sintered bricks, the aluminum ash slag can be utilized more reasonably and efficiently, and the problem of environmental pollution caused by waste slag is solved while the economic benefit is obtained.
Drawings
The technical solution and the advantages of the present invention will be apparent from the following detailed description of the embodiments of the present invention with reference to the accompanying drawings.
FIG. 1 is a flow chart of an aluminum ash hydrolysis nitrogen removal method based on an aluminum ash hydrolysis nitrogen removal device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an apparatus for removing nitrogen by hydrolysis of aluminum ash according to an embodiment of the present invention.
Reference numbers in the figures:
the device comprises a reaction kettle 1, an aluminum ash containing barrel 2, a barrel bottom 21, a first screw 31, a base 32, a first motor 33, a cantilever beam 4, a piston 5, a stirring rod 6, a third motor 71, a connecting rod 72, a second screw 73, an aluminum ash mud refining device 8, a feed opening 81 and a water filling opening 82.
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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment provides an aluminum ash hydrolysis nitrogen removal method based on an aluminum ash hydrolysis nitrogen removal device, as shown in fig. 1-2, comprising the following steps: s10, starting the third motor 71 to separate the piston 5 from the aluminum ash containing barrel 2, adding the screened aluminum ash into the aluminum ash containing barrel 2 through the gap between the piston 5 and the aluminum ash containing barrel 2, and simultaneously adding a proper amount of water into the reaction kettle 1. S20 starts the third motor 71 will the piston 5 is arranged in the aluminium ash containing bucket 2, starts the second motor and will the aluminium ash containing bucket 2 is arranged in the reaction kettle 1, water in the reaction kettle 1 flows into the aluminium ash containing bucket 2 through the mesh of the filter screen structure of the bottom 21 of the aluminium ash containing bucket 2 and is mixed with the aluminium ash. S30, starting a stirring motor, stirring by a stirring rod 6 in the aluminum ash containing barrel, and accelerating the hydrolysis reaction process. And S40, starting the second motor after the reaction is completed to enable the aluminum ash containing barrel 2 to be separated from the reaction kettle 1, starting the third motor 71 to shorten the distance between the barrel bottom 21 and the piston 5, and accelerating the water loss in the aluminum ash containing barrel 2. S50 starts the first motor 33, conveys the aluminum ash containing barrel 2 to the upper part of the aluminum ash mud refining device 8, opens the barrel bottom 21 and outputs the hydrolyzed aluminum ash to the aluminum ash mud refining device 8.
In the S10 step, the aluminium ash storage after the screening is in aluminium ash temporary storage area, the aluminium ash of temporary storage is exported through the unloading pipe in the temporary storage area, the upper end setting of unloading pipe is in the lower extreme of temporary storage area, the rotatable setting of unloading pipe is in the lower extreme of temporary storage area, the upper end of unloading pipe has fan-shaped feed inlet, corresponding fan-shaped discharge gate is located to the lower extreme of temporary storage area, and is rotatory the unloading pipe can be realized the discharge gate with the feed inlet has overlap area, and then realizes the unloading, the accessible the discharge gate with the size control unloading speed of the overlap area of feed inlet.
Aluminium ash nitrogen removal device that hydrolysises includes reation kettle 1 aluminium ash containing bucket 2, elevating system and first motor 33, aluminium ash containing bucket 2 can stretch into or keep away from under elevating system's the drive reation kettle 1 realizes aluminium ash in aluminium ash containing bucket 2 in water contact in reation kettle 1 produces the hydrolysis, gets rid of the nitrogen in the aluminium ash. The reaction kettle 1 is positioned below the lifting mechanism, and the aluminum ash containing barrel 2 and the first motor 33 are connected with the lifting mechanism.
The reaction kettle 1 is of an open barrel-shaped structure, heating devices are arranged in the side wall and the bottom wall of the reaction kettle 1, and in the reaction process of aluminum ash and water, the heating devices are started to improve the reaction efficiency and accelerate the reaction speed. The bottom of the reaction kettle 1 is connected with a waste liquid recycling device through a recycling liquid outlet.
Aluminium ash containing bucket 2 is located reation kettle 1's top, barrel head 21 is the filter screen structure, aluminium ash containing bucket 2's external diameter is less than reation kettle 1's internal diameter, is convenient for aluminium ash containing bucket 2 stretches into in reation kettle 1. Elevating system includes first screw rod 31 and the second motor, the second motor erects on cantilever beam 4 through base 32, cantilever beam 4 is located reation kettle 1's top, the second motor passes through first screw rod 31 with piston 5 is connected, the second motor passes through first screw rod 31 control the lift of aluminium ash containing barrel 2.
The barrel head 21 of aluminium ash containing bucket 2 is the filter screen structure, and the moisture of being convenient for passes in and out through the mesh in aluminium ash containing bucket 2 realizes hydrolysis and later stage drainage. Through the aluminium ash of the small granule of screen structure of ladle bottom 21 will get into through the mesh called impurity among the reation kettle 1, finally the aluminium ash size in the aluminium ash storage bucket 2 obtains the screening and satisfies the aluminium ash that we preset the granularity specification. The mesh size of the filter screen structure of the bucket bottom 21 can be adjusted according to design requirements. The filter screen detachable of ladle bottom 21 sets up the bottom of the lateral wall of aluminium ash storage bucket 2, and the aluminium ash of completion of hydrolysising transports to behind the top of aluminium ash mud refining device 8, can easily realize that the aluminium ash pours into in the aluminium ash mud refining device 8. And a stirring device is arranged below the piston 5, and a stirring rod 6 of the stirring device extends into the aluminum ash containing barrel 2. When the hydrolysis nitrogen removal reaction is carried out, the full reaction of water and aluminum ash can be realized through the stirring of the stirring device, and the nitrogen removal efficiency is improved.
After each hydrolysis, the water in the reaction kettle 1 contains a large amount of salt and aluminum ash, and if the wastewater is not replaced, a large amount of salt crystals (saturated solution and separated crystals) exist in the aluminum ash after the subsequent hydrolysis, so that the material pollution is caused. After hydrolysis for several times, when salt in water is saturated quickly, the recovered liquid outlet of the reaction kettle 1 is opened, and the wastewater in the reaction kettle 1 is output to the waste liquid recycling device. Waste liquid recycling device includes first delivery port, second delivery port and third delivery port from top to bottom in proper order, gets into waste liquid recycling device's waste water first in a period of stewing in the waste liquid recycling device, and the time is longer, wait just can discharge and send out professional institution to handle after the waste liquid recycling device is full. And after the waste liquid recycling device is kept stand for a period of time, solid and liquid are layered gradually, aluminum ash particles are deposited at the bottom gradually, the first water outlet is opened, upper-layer waste water is collected, and after all waste water in the first water outlet is collected, the second water outlet is opened to collect waste water between the first water outlet and the second water outlet. And similarly, collecting the wastewater between the second water outlet and the third water outlet until the collection is finished. The purpose of discharging water layer by layer is to avoid the aluminum ash sediment from being lifted again due to the change of water flow during water discharging, so that the finally discharged wastewater contains less impurities. Meanwhile, the inner bottom of the reaction kettle 1 needs to have a certain inclination angle so as to smoothly drain the wastewater after hydrolysis. The finally obtained aluminum ash sediment can be used as a brick making raw material after being dried.
The aluminium ash after the hydrolysis carries partial moisture output extremely aluminium ash smelts mud device 8, can be according to before the hydrolysis aluminium ash with aluminium ash containing bucket 2's weight and the aluminium ash after the hydrolysis, moisture with aluminium ash containing bucket 2's weight difference calculates the aluminium ash loss volume. Through a plurality of tests, error analysis is carried out, the loss amount of the aluminum ash after each hydrolysis is counted, and the weight of water and other ingredients required by the aluminum ash mud refining device 8 for refining mud can be calculated according to the data and the batching table of the baking-free bricks.
When water is added into the aluminum ash mud refining device 8, a water inlet switch is firstly opened, water is added until the display number of the weighing instrument reaches a certain number, then other ingredients are added successively in the same way, and the change of the number on each weighing instrument is determined, so that the automatic control can be realized (the weighing instrument can be connected with a signal transmitter, each charging hole is internally provided with an electric switch, and the automatic control is closed or opened after receiving a signal. And after the feeding is finished, starting the stirrer to mix materials.
The above description is only an exemplary embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes that are transformed by the content of the present specification and the attached drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. An aluminum ash hydrolysis nitrogen removal method based on an aluminum ash hydrolysis nitrogen removal device is characterized by comprising the following steps:
s10, starting a third motor to separate a piston from an aluminum ash containing barrel, adding screened aluminum ash into the aluminum ash containing barrel through a gap between the piston and the aluminum ash containing barrel, and simultaneously adding a proper amount of water into the reaction kettle;
s20, starting the third motor to place the piston in the aluminum ash containing barrel, starting the second motor to place the aluminum ash containing barrel in the reaction kettle, and enabling water in the reaction kettle to flow into the aluminum ash containing barrel through a mesh of a filter screen structure at the bottom of the aluminum ash containing barrel to be mixed with the aluminum ash;
s30, starting a stirring motor, stirring by a stirring rod in the aluminum ash containing barrel, and accelerating the hydrolysis reaction process; and
and S40, starting the second motor after the reaction is completed to enable the aluminum ash containing barrel to be separated from the reaction kettle, starting a third motor to shorten the distance between the barrel bottom and the piston, and accelerating the water loss in the aluminum ash containing barrel.
2. The aluminum ash hydrolysis nitrogen removal method based on the aluminum ash hydrolysis nitrogen removal device as claimed in claim 1, wherein the aluminum ash hydrolysis nitrogen removal device comprises:
the reaction kettle is of an open barrel-shaped structure, heating devices are arranged in the side wall and the bottom wall of the reaction kettle, and the bottom of the reaction kettle is connected with a waste liquid recycling device through a recycling liquid outlet;
the aluminum ash containing barrel is positioned above the reaction kettle, the barrel bottom is of a filter screen structure, and the outer diameter of the aluminum ash containing barrel is smaller than the inner diameter of the reaction kettle; and
the lifting mechanism comprises a first screw and the second motor, the second motor is erected on a cantilever beam through a base, the cantilever beam is positioned above the reaction kettle, the second motor is connected with the piston through the first screw, and the second motor controls the aluminum ash containing barrel to lift through the first screw; and
the first motor is arranged on the cantilever beam and connected with the base, and the first motor can control the first screw to slide on the cantilever beam.
3. The aluminum ash hydrolysis nitrogen removal method based on the aluminum ash hydrolysis nitrogen removal device as claimed in claim 2, characterized in that a stirring device is arranged below the piston, and a stirring rod of the stirring device extends into the aluminum ash containing barrel.
4. The aluminum ash hydrolysis nitrogen removal method based on the aluminum ash hydrolysis nitrogen removal device as claimed in claim 3, wherein the third motor is arranged at the lower part of the first screw rod through a connecting rod, and the third motor is connected with the wall of the aluminum ash containing barrel through a second screw rod.
5. The aluminum ash hydrolysis nitrogen removal method based on the aluminum ash hydrolysis nitrogen removal device as claimed in claim 4, wherein the filter screen at the bottom of the barrel is detachably arranged at the bottom end of the side wall of the aluminum ash containing barrel.
6. The method for removing nitrogen by hydrolyzing aluminum ash based on the device for removing nitrogen by hydrolyzing aluminum ash as claimed in claim 5, further comprising S50 starting the first motor, transporting the aluminum ash containing barrel to the upper part of the device for refining aluminum ash, opening the barrel bottom and outputting the aluminum ash after hydrolysis to the device for refining aluminum ash.
7. The aluminum ash hydrolysis nitrogen removal method based on the aluminum ash hydrolysis nitrogen removal device of claim 6, wherein the step S50 further comprises: and starting the third motor, and pushing the hydrolyzed aluminum ash to be output to the aluminum ash mud refining device by the piston.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113996640A (en) * | 2021-11-05 | 2022-02-01 | 南通大学 | Aluminum ash harmless treatment and resource utilization device and operation method |
| CN118002061A (en) * | 2024-04-03 | 2024-05-10 | 佛山市邦权科技有限公司 | Slurry preparation equipment for aluminum ash water nitrogen removal pretreatment |
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Application publication date: 20210525 |