CN111570484A - Aluminum scrap residue recovery treatment process - Google Patents
Aluminum scrap residue recovery treatment process Download PDFInfo
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- CN111570484A CN111570484A CN202010460197.2A CN202010460197A CN111570484A CN 111570484 A CN111570484 A CN 111570484A CN 202010460197 A CN202010460197 A CN 202010460197A CN 111570484 A CN111570484 A CN 111570484A
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- aluminum
- aluminum scraps
- scraps
- aluminum scrap
- scrap
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- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 161
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 161
- 238000000034 method Methods 0.000 title claims abstract description 32
- 230000008569 process Effects 0.000 title claims abstract description 26
- 238000011084 recovery Methods 0.000 title claims abstract description 19
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 58
- 239000000463 material Substances 0.000 claims abstract description 51
- 239000000843 powder Substances 0.000 claims abstract description 45
- 239000001257 hydrogen Substances 0.000 claims abstract description 39
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 39
- 238000010438 heat treatment Methods 0.000 claims abstract description 36
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 34
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims abstract description 24
- 238000012545 processing Methods 0.000 claims abstract description 19
- 239000002244 precipitate Substances 0.000 claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 17
- 239000012535 impurity Substances 0.000 claims abstract description 8
- 238000004140 cleaning Methods 0.000 claims abstract description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 20
- 239000000919 ceramic Substances 0.000 claims description 20
- 238000001035 drying Methods 0.000 claims description 15
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 238000004080 punching Methods 0.000 claims description 12
- 229910052742 iron Inorganic materials 0.000 claims description 10
- 239000006148 magnetic separator Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000005303 weighing Methods 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 9
- 150000002431 hydrogen Chemical class 0.000 claims description 7
- 229910000617 Mangalloy Inorganic materials 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000007885 magnetic separation Methods 0.000 claims description 5
- PYLLWONICXJARP-UHFFFAOYSA-N manganese silicon Chemical compound [Si].[Mn] PYLLWONICXJARP-UHFFFAOYSA-N 0.000 claims description 5
- 230000007246 mechanism Effects 0.000 claims description 5
- 238000000746 purification Methods 0.000 claims description 5
- 239000008213 purified water Substances 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- 238000004064 recycling Methods 0.000 claims description 2
- 239000002699 waste material Substances 0.000 abstract description 8
- 238000011161 development Methods 0.000 abstract description 3
- 238000004134 energy conservation Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 2
- 238000012216 screening Methods 0.000 abstract 1
- 238000009825 accumulation Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/40—Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Processing Of Solid Wastes (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses an aluminum scrap residue recovery treatment process, and particularly relates to the field of waste recovery, which comprises the following processing steps: selecting raw materials, pretreating the raw materials, stamping, crushing aluminum scraps, reacting with dilute sulfuric acid, and purifying hydrogen. Through the integral design, compared with the prior art, the aluminum scrap cleaning and screening device has the advantages that the heating temperature is proper, the aluminum scrap is cleaned and screened, impurities in the aluminum scrap are removed, the aluminum scrap is preheated, the internal structure of the aluminum scrap is softened, the aluminum scrap with different sizes is subjected to layered treatment, the aluminum scrap is subjected to stamping treatment by using a stamping machine to form a sheet-shaped structure, then a grinder is used for grinding the sheet aluminum scrap to form an aluminum scrap powder material, dilute sulfuric acid and the aluminum scrap powder material are used for reacting to form aluminum sulfate precipitate, the aluminum sulfate precipitate is recycled, the utilization rate of the aluminum scrap is effectively improved, the resource waste is avoided, and the development concept of energy conservation and environmental protection in modern society is met.
Description
Technical Field
The invention belongs to the technical field of waste recovery, and particularly relates to an aluminum scrap residue recovery treatment process.
Background
Articles made of aluminum and other alloying elements. The aluminum alloy is usually manufactured by processing into casting products, forging products, foils, plates, strips, pipes, bars, section bars and the like, and then performing the processes of cold bending, saw cutting, drilling, assembling, coloring and the like, wherein the main metal element is aluminum, and some alloy elements are added to improve the performance of the aluminum material.
But in the time of the in-service use, general aluminium bits waste material is all directly collected it, carries out refuse treatment, can not carry out secondary operation and utilize it to it, from this great reduction the utilization ratio of aluminium bits waste material.
Disclosure of Invention
The invention provides an aluminum scrap residue recovery treatment process, and aims to solve the problem that the existing common aluminum scrap is directly collected for garbage treatment and cannot be subjected to secondary processing and utilization, so that the utilization rate of the aluminum scrap is greatly reduced.
The invention is realized in such a way, and provides the following technical scheme: the aluminum scrap residue recovery treatment process comprises the following processing steps:
the method comprises the following steps: selecting raw materials, placing the aluminum scraps in a magnetic separator, carrying out magnetic separation on the aluminum scraps by using the magnetic separator to remove iron-containing impurities in the aluminum scraps, placing the aluminum scraps in a screen for cleaning, placing the aluminum scraps in a drying box after the aluminum scraps are washed by a high-pressure water source, and drying the aluminum scraps by using circulating hot air;
step two: pretreating raw materials, namely placing the aluminum scraps obtained in the step one in a heating box, heating the aluminum scraps by using a heating pipe in the heating box, and forming a heating material when the inside of the heating box is heated to 40-80 ℃;
step three: placing the heated material obtained in the second step below a punching machine, driving a flywheel through a motor, driving a crank connecting rod mechanism through a clutch and a transmission gear to enable a sliding block to move up and down, driving a drawing die to punch aluminum scraps, and punching the aluminum scraps repeatedly to form aluminum scraps with a sheet structure;
step four: crushing the aluminum scraps, namely throwing the aluminum scraps with the sheet-like structures obtained in the third step into a crusher, and crushing the aluminum scraps into powder structures by using crushing teeth in a multi-stage mode to form powder materials;
step five: dilute sulfuric acid reaction, namely placing powder materials in a ceramic container, preparing a proper amount of dilute sulfuric acid for inversion according to the actual amount of the powder materials, reacting the dilute sulfuric acid and the powder materials with each other to form aluminum sulfate, reacting the aluminum sulfate for a period of time to form precipitates, and taking out the aluminum sulfate precipitates inside after the whole reaction is finished;
step six: purifying hydrogen, butting the ceramic containers through pipelines, detecting the concentration of the hydrogen by using a hydrogen purity detector in the process, transmitting the generated hydrogen to the inside of a storage tank through a purification device, and bottling the hydrogen in a separated manner;
step seven: and (4) weighing, washing the aluminum sulfate precipitate in the step five by using purified water, and then drying and weighing.
In a preferred embodiment, in the first step, the rejected scrap containing iron species is briquetted to form a brick-shaped structure for stacking.
In a preferred embodiment, in the second step, the raw materials are sorted according to actual conditions, the aluminum scraps with larger size and the aluminum scraps with smaller size are sorted, and the aluminum scraps with larger size are treated in the subsequent processing steps until the aluminum scraps are crushed, and the aluminum scraps with smaller size are poured into the crushing operation.
In a preferred embodiment, in the third step, the aluminum scraps with thicker overall size are pre-crushed and are treated by two sets of opposite meshing teeth, so as to reduce the overall size of the aluminum scraps.
In a preferred embodiment, in the fourth step, the crushing teeth inside the crusher are made of silicon manganese steel.
In a preferred embodiment, in the step five, when the dilute sulfuric acid and the powder material react with each other, the powder material in the ceramic container is stirred by the ceramic stirring blade driven by the driving force of the driving motor.
In a preferred embodiment, in the sixth step, during the collection of the hydrogen, a flow meter needs to be installed on the pipeline, so as to meter the amount of the hydrogen.
Compared with the prior art, the invention has the beneficial effects that:
1. through the integral design, compared with the prior art, the heating temperature is proper, the aluminum scraps are cleaned and screened, so that impurities in the aluminum scraps are removed, the aluminum scraps are preheated, the internal structure of the aluminum scraps is softened, the aluminum scraps with different sizes are subjected to hierarchical treatment, the aluminum scraps are subjected to stamping treatment by using a stamping machine to form a sheet-shaped structure, then a crusher is used for crushing the sheet aluminum scraps to form an aluminum scrap powder material, dilute sulfuric acid and the aluminum scrap powder material are used for reacting, the reaction between the dilute sulfuric acid and the aluminum scrap powder material is more sufficient, aluminum sulfate precipitation is formed, and the aluminum scrap is recycled, so that the utilization rate of the aluminum scraps is effectively improved, the resource waste is avoided, and the development concept of energy conservation and environmental protection in the modern society is met;
2. through purifying hydrogen, compared with the prior art, dilute sulfuric acid is used for reacting with aluminum scraps, the generated hydrogen is recycled and treated, the hydrogen can be used as high-energy fuel when reacting with oxygen, the density of the hydrogen is the minimum property of all gases, the hydrogen can be used as fly-lift gas, the recovery of the rest gases generated in the aluminum scrap recovery process is effectively improved, and the waste of resources is avoided.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
The aluminum scrap residue recovery treatment process comprises the following processing steps:
the method comprises the following steps: selecting raw materials, placing aluminum scraps in a magnetic separator, carrying out magnetic separation on the aluminum scraps by using the magnetic separator to remove impurities containing iron, briquetting the removed iron-containing scraps to form a brick-shaped structure for accumulation, placing the brick-shaped structure in a screen for cleaning, placing the brick-shaped structure in a drying box after the aluminum scraps are washed by a high-pressure water source, and drying the aluminum scraps by using circulating hot air;
step two: raw material pretreatment, namely placing the aluminum scraps obtained in the step one in a heating box, heating the aluminum scraps by using a heating pipe in the heating box, and forming a heating material when the inside of the heating box is heated to 40 ℃, wherein the raw materials are sorted according to actual conditions, the aluminum scraps with larger size and the aluminum scraps with smaller size are classified, and the aluminum scraps with larger size are treated in subsequent processing steps until the aluminum scraps are crushed, and the aluminum scraps with smaller size are poured into the heating box together for crushing operation;
step three: placing the heated material obtained in the second step below a punching machine, driving a flywheel through a motor, driving a crank connecting rod mechanism through a clutch and a transmission gear to enable a sliding block to move up and down, driving a drawing die to punch aluminum scraps, and punching repeatedly to form the aluminum scraps in a sheet structure, wherein the aluminum scraps with thicker overall size are pre-crushed, and are processed by two groups of opposite meshing teeth so as to reduce the overall size of the aluminum scraps;
step four: crushing aluminum scraps, namely throwing the aluminum scraps with the sheet-like structures obtained in the third step into a crusher, performing multi-stage crushing on the aluminum scraps by using crushing teeth, wherein the crushing teeth in the crusher are made of silicon-manganese steel, and crushing the aluminum scraps into powder structures to form powder materials;
step five: dilute sulfuric acid reaction, namely placing powder materials in a ceramic container, preparing a proper amount of dilute sulfuric acid according to the actual amount of the powder materials, inverting the dilute sulfuric acid, enabling the dilute sulfuric acid and the powder materials to react with each other, further forming aluminum sulfate by the powder materials, forming precipitates after the aluminum sulfate reacts for a period of time, and taking out the aluminum sulfate inside the precipitates after the integral reaction is finished, wherein when the dilute sulfuric acid and the powder materials react with each other, a ceramic stirring blade is driven to stir the powder materials in the ceramic container by using the driving force of a driving motor;
step six: purifying hydrogen, butting the ceramic containers through pipelines, detecting the concentration of the hydrogen by using a hydrogen purity detector in the process, transmitting the generated hydrogen to the inside of a storage tank through a purification device, and bottling the hydrogen in a separated manner;
step seven: and (4) weighing, washing the aluminum sulfate precipitate in the step five by using purified water, drying and weighing, wherein a flowmeter is required to be installed on a pipeline in the hydrogen collecting process so as to measure the amount of hydrogen.
Example 2
The aluminum scrap residue recovery treatment process comprises the following processing steps:
the method comprises the following steps: selecting raw materials, placing aluminum scraps in a magnetic separator, carrying out magnetic separation on the aluminum scraps by using the magnetic separator to remove impurities containing iron, briquetting the removed iron-containing scraps to form a brick-shaped structure for accumulation, placing the brick-shaped structure in a screen for cleaning, placing the brick-shaped structure in a drying box after the aluminum scraps are washed by a high-pressure water source, and drying the aluminum scraps by using circulating hot air;
step two: raw material pretreatment, namely placing the aluminum scraps obtained in the step one in a heating box, heating the aluminum scraps by using a heating pipe in the heating box, and forming a heating material when the inside of the heating box is heated to 60 ℃, wherein the raw materials are sorted according to the actual condition, the aluminum scraps with larger size and the aluminum scraps with smaller size are classified, and the aluminum scraps with larger size are treated in the subsequent processing steps until the aluminum scraps are crushed, and the aluminum scraps with smaller size are poured into the heating box together for crushing operation;
step three: placing the heated material obtained in the second step below a punching machine, driving a flywheel through a motor, driving a crank connecting rod mechanism through a clutch and a transmission gear to enable a sliding block to move up and down, driving a drawing die to punch aluminum scraps, and punching repeatedly to form the aluminum scraps in a sheet structure, wherein the aluminum scraps with thicker overall size are pre-crushed, and are processed by two groups of opposite meshing teeth so as to reduce the overall size of the aluminum scraps;
step four: crushing aluminum scraps, namely throwing the aluminum scraps with the sheet-like structures obtained in the third step into a crusher, performing multi-stage crushing on the aluminum scraps by using crushing teeth, wherein the crushing teeth in the crusher are made of silicon-manganese steel, and crushing the aluminum scraps into powder structures to form powder materials;
step five: dilute sulfuric acid reaction, namely placing powder materials in a ceramic container, preparing a proper amount of dilute sulfuric acid according to the actual amount of the powder materials, inverting the dilute sulfuric acid, enabling the dilute sulfuric acid and the powder materials to react with each other, further forming aluminum sulfate by the powder materials, forming precipitates after the aluminum sulfate reacts for a period of time, and taking out the aluminum sulfate inside the precipitates after the integral reaction is finished, wherein when the dilute sulfuric acid and the powder materials react with each other, a ceramic stirring blade is driven to stir the powder materials in the ceramic container by using the driving force of a driving motor;
step six: purifying hydrogen, butting the ceramic containers through pipelines, detecting the concentration of the hydrogen by using a hydrogen purity detector in the process, transmitting the generated hydrogen to the inside of a storage tank through a purification device, and bottling the hydrogen in a separated manner;
step seven: and (4) weighing, washing the aluminum sulfate precipitate in the step five by using purified water, drying and weighing, wherein a flowmeter is required to be installed on a pipeline in the hydrogen collecting process so as to measure the amount of hydrogen.
Example 3
The aluminum scrap residue recovery treatment process comprises the following processing steps:
the method comprises the following steps: selecting raw materials, placing aluminum scraps in a magnetic separator, carrying out magnetic separation on the aluminum scraps by using the magnetic separator to remove impurities containing iron, briquetting the removed iron-containing scraps to form a brick-shaped structure for accumulation, placing the brick-shaped structure in a screen for cleaning, placing the brick-shaped structure in a drying box after the aluminum scraps are washed by a high-pressure water source, and drying the aluminum scraps by using circulating hot air;
step two: raw material pretreatment, namely placing the aluminum scraps obtained in the step one in a heating box, heating the aluminum scraps by using a heating pipe in the heating box, and forming a heating material when the inside of the heating box is heated to 80 ℃, wherein the raw materials are sorted according to actual conditions, the aluminum scraps with larger size and the aluminum scraps with smaller size are classified, and the aluminum scraps with larger size are treated in subsequent processing steps until the aluminum scraps are crushed, and the aluminum scraps with smaller size are poured into the heating box together for crushing operation;
step three: placing the heated material obtained in the second step below a punching machine, driving a flywheel through a motor, driving a crank connecting rod mechanism through a clutch and a transmission gear to enable a sliding block to move up and down, driving a drawing die to punch aluminum scraps, and punching repeatedly to form the aluminum scraps in a sheet structure, wherein the aluminum scraps with thicker overall size are pre-crushed, and are processed by two groups of opposite meshing teeth so as to reduce the overall size of the aluminum scraps;
step four: crushing aluminum scraps, namely throwing the aluminum scraps with the sheet-like structures obtained in the third step into a crusher, performing multi-stage crushing on the aluminum scraps by using crushing teeth, wherein the crushing teeth in the crusher are made of silicon-manganese steel, and crushing the aluminum scraps into powder structures to form powder materials;
step five: dilute sulfuric acid reaction, namely placing powder materials in a ceramic container, preparing a proper amount of dilute sulfuric acid according to the actual amount of the powder materials, inverting the dilute sulfuric acid, enabling the dilute sulfuric acid and the powder materials to react with each other, further forming aluminum sulfate by the powder materials, forming precipitates after the aluminum sulfate reacts for a period of time, and taking out the aluminum sulfate inside the precipitates after the integral reaction is finished, wherein when the dilute sulfuric acid and the powder materials react with each other, a ceramic stirring blade is driven to stir the powder materials in the ceramic container by using the driving force of a driving motor;
step six: purifying hydrogen, butting the ceramic containers through pipelines, detecting the concentration of the hydrogen by using a hydrogen purity detector in the process, transmitting the generated hydrogen to the inside of a storage tank through a purification device, and bottling the hydrogen in a separated manner;
step seven: and (4) weighing, washing the aluminum sulfate precipitate in the step five by using purified water, drying and weighing, wherein a flowmeter is required to be installed on a pipeline in the hydrogen collecting process so as to measure the amount of hydrogen.
The embodiment of the invention has the advantages that the heating temperature is suitable, aluminum scraps are cleaned and screened, impurities in the aluminum scraps are removed, preheating treatment is carried out on the aluminum scraps, the internal structure of the aluminum scraps is softened, layering treatment is carried out on the aluminum scraps with different sizes, a punching machine is utilized to carry out punching treatment on the aluminum scraps, a sheet-like structure is formed, a crusher is further used for crushing the sheet aluminum scraps, an aluminum scrap powder material is formed, dilute sulfuric acid and the aluminum scrap powder material are utilized for reaction, aluminum sulfate precipitation is formed, recycling is carried out, the utilization rate of the aluminum scraps is effectively improved, resource waste is avoided, and the development concept of energy conservation and environmental protection in the modern society is met.
And finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (7)
1. A process for recycling and treating aluminum scrap residues is characterized by comprising the following steps: the method comprises the following processing steps:
the method comprises the following steps: selecting raw materials, placing the aluminum scraps in a magnetic separator, carrying out magnetic separation on the aluminum scraps by using the magnetic separator to remove iron-containing impurities in the aluminum scraps, placing the aluminum scraps in a screen for cleaning, placing the aluminum scraps in a drying box after the aluminum scraps are washed by a high-pressure water source, and drying the aluminum scraps by using circulating hot air;
step two: pretreating raw materials, namely placing the aluminum scraps obtained in the step one in a heating box, heating the aluminum scraps by using a heating pipe in the heating box, and forming a heating material when the inside of the heating box is heated to 40-80 ℃;
step three: placing the heated material obtained in the second step below a punching machine, driving a flywheel through a motor, driving a crank connecting rod mechanism through a clutch and a transmission gear to enable a sliding block to move up and down, driving a drawing die to punch aluminum scraps, and punching the aluminum scraps repeatedly to form aluminum scraps with a sheet structure;
step four: crushing the aluminum scraps, namely throwing the aluminum scraps with the sheet-like structures obtained in the third step into a crusher, and crushing the aluminum scraps into powder structures by using crushing teeth in a multi-stage mode to form powder materials;
step five: dilute sulfuric acid reaction, namely placing powder materials in a ceramic container, preparing a proper amount of dilute sulfuric acid for inversion according to the actual amount of the powder materials, reacting the dilute sulfuric acid and the powder materials with each other to form aluminum sulfate, reacting the aluminum sulfate for a period of time to form precipitates, and taking out the aluminum sulfate precipitates inside after the whole reaction is finished;
step six: purifying hydrogen, butting the ceramic containers through pipelines, detecting the concentration of the hydrogen by using a hydrogen purity detector in the process, transmitting the generated hydrogen to the inside of a storage tank through a purification device, and bottling the hydrogen in a separated manner;
step seven: and (4) weighing, washing the aluminum sulfate precipitate in the step five by using purified water, and then drying and weighing.
2. The aluminum scrap residue recovery processing process according to claim 1, characterized in that: in the first step, the rejected scrap containing iron is pressed into blocks to form brick-shaped structures for stacking.
3. The aluminum scrap residue recovery processing process according to claim 1, characterized in that: and in the second step, the raw materials are sorted according to actual conditions, the aluminum scraps with larger size and the aluminum scraps with smaller size are classified, the aluminum scraps with larger size are treated in the subsequent processing steps, and the aluminum scraps with smaller size are poured into the crushing step until the aluminum scraps are crushed.
4. The aluminum scrap residue recovery processing process according to claim 1, characterized in that: and in the third step, pre-crushing the aluminum scraps with thicker overall size, and treating the aluminum scraps by using two groups of opposite meshing teeth so as to reduce the overall size of the aluminum scraps.
5. The aluminum scrap residue recovery processing process according to claim 1, characterized in that: in the fourth step, the crushing teeth in the crusher are made of silicon-manganese steel.
6. The aluminum scrap residue recovery processing process according to claim 1, characterized in that: in the fifth step, when the dilute sulfuric acid and the powder material react with each other, the driving force of the driving motor is utilized to drive the ceramic stirring blades to stir the powder material in the ceramic container.
7. The aluminum scrap residue recovery processing process according to claim 1, characterized in that: in the sixth step, during the hydrogen gas collection process, a flow meter needs to be installed on the pipeline, so as to meter the amount of the hydrogen gas.
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