CN111633006A - Environment-friendly treatment method for dry comprehensive utilization of waste metal in barrel filling - Google Patents
Environment-friendly treatment method for dry comprehensive utilization of waste metal in barrel filling Download PDFInfo
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- CN111633006A CN111633006A CN202010522211.7A CN202010522211A CN111633006A CN 111633006 A CN111633006 A CN 111633006A CN 202010522211 A CN202010522211 A CN 202010522211A CN 111633006 A CN111633006 A CN 111633006A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
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- 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
- Y02W30/82—Recycling of waste of electrical or electronic equipment [WEEE]
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- Environmental & Geological Engineering (AREA)
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Abstract
The invention discloses an environment-friendly treatment method for waste metal barreling dry comprehensive utilization, which comprises the steps of barreling and screening waste metals, adding different cleaning machines for cleaning, uniformly and intensively drying the cleaned waste metal barrels to remove water stains, adding the air-dried waste metal barrels into a double-shaft shredder for shredding, adding shredded iron sheets into a magnetic separator, adding the magnetically-separated waste metals into an electric furnace for preheating, adding cold water into the preheated waste metals, adding into a cleaning machine, air-drying the cleaned waste metals, adding into a compressor, pressing into blocks for storage, and spraying antirust oil on the surfaces. The method is easy to operate by operators, reduces the operation difficulty of the operators, further reduces the labor intensity of the operators, is clean and environment-friendly, is beneficial to protecting the environment, improves the recovery efficiency of the waste metal barrel, and is beneficial to the recovery and reutilization of resources.
Description
Technical Field
The invention relates to the field of waste metal recovery, in particular to an environment-friendly treatment method for waste metal barreling and dry comprehensive utilization.
Background
The metal packaging container is a thin-wall packaging container made of metal sheets, and is widely applied to the aspects of food packaging, medicine packaging, daily product packaging, instrument and meter packaging, industrial product packaging, military fire packaging and the like. The metal barrel is a container which is made of metal plates and has large capacity, the mechanical property is good, the metal container has large strength relative to other packaging containers, such as plastic, glass, paper containers and the like, the rigidity is good, the metal barrel is not easy to break, the metal barrel not only can be used for small sale packaging, but also is a main container for large-scale transportation packaging, the metal sheet has excellent barrier property compared with any other material, and has good gas barrier property, moisture resistance, light shielding property and aroma retention property, the sealing is reliable, the product can be reliably protected, the metal recovery means that useful substances separated from waste metals are physically or mechanically processed into recycled products, and the metal recovery industry forms a complete industry chain and a recycling ecological circle. The industrial chain starts from foreign waste material suppliers, effective utilization of resources is realized through links such as trade companies, import merchants, agents, ports, dismantling plants (fixed-point enterprises or hardware plants), recycling companies, metal processing plants and the like, the existing waste metal barrel recycling is basically realized by high-temperature smelting and other methods, air pollution is easily caused during recycling, and the environment-friendly treatment method for waste metal barrel filling dry-method comprehensive utilization is provided aiming at the situation.
Disclosure of Invention
The invention aims to provide an environment-friendly treatment method for dry comprehensive utilization of waste metal barrels, which is easy to operate by operators, reduces the operation difficulty of the operators, further reduces the labor intensity of the operators, is clean and environment-friendly, is beneficial to protecting the environment, improves the recovery efficiency of the waste metal barrels, and is beneficial to the recovery and reutilization of resources.
The purpose of the invention can be realized by the following technical scheme:
an environment-friendly treatment method for waste metal barreling dry-method comprehensive utilization comprises the following steps:
the method comprises the following steps: waste metals are barreled and screened, and are classified into harmful materials and harmless materials according to the difference of the originally contained materials;
step two: respectively adding the harmful material waste metal barrel and the harmless material waste metal barrel into different cleaning machines for cleaning, wherein the cleaning solution is a solvent type cleaning agent;
step three: uniformly and intensively drying the cleaned waste metal barrels to remove water stains, and adding the air-dried waste metal barrels into a double-shaft shredder for shredding;
step four: adding the shredded iron sheets into a magnetic separator, wherein a magnetic field source adopted by magnetic separation is an electromagnet, and separating the non-metal parts falling off after the waste metal barrel is crushed;
step four: preheating the magnetically separated waste metal in the electric furnace again to soften and peel off the paint on the surface of the waste metal and evaporate water;
step five: adding the preheated waste metal into cold water, heating the metal, expanding the metal, shrinking the metal by the cold water to accelerate the shedding of the surface coating, adding the metal into a cleaning machine, and adding an alkaline industrial cleaning agent;
step six: and (3) air-drying the cleaned waste metal, adding the metal into a compressor, pressing the metal into blocks for storage, and spraying antirust oil on the surface of the blocks.
Further, the cleaning solution is one of a hydrocarbon cleaning agent, a white gasoline substitute and a trichloroethylene substitute;
further, the preheating temperature of the fourth step is between 150 ℃ and 300 ℃.
Furthermore, the alkaline industrial cleaning agent is one of a weakly alkaline water-based cleaning agent WHC-2 and an alkaline cleaning agent WSG-130.
And further, the sewage after being cleaned in the second step and the fifth step is discharged after being treated, and the sewage treatment method is a micro-electrolysis organic wastewater treatment technology.
Further, the rust preventive oil is oily rust preventive oil.
Further, the magnetic field source adopted by the magnetic separator is an electromagnet.
The invention has the beneficial effects that:
1. the method is easy to operate by operators, reduces the operation difficulty of the operators and further reduces the labor intensity of the operators;
2. the method is clean and environment-friendly, is beneficial to protecting the environment, improves the recovery efficiency of the waste metal barrel, and is beneficial to the recovery and reutilization of resources.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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.
An environment-friendly treatment method for waste metal barreling dry-method comprehensive utilization comprises the following steps:
the method comprises the following steps: waste metals are barreled and screened, and are classified into harmful materials and harmless materials according to the difference of the originally contained materials;
step two: respectively adding the harmful material waste metal barrel and the harmless material waste metal barrel into different cleaning machines for cleaning, wherein the cleaning solution is a solvent type cleaning agent and is one of a hydrocarbon cleaning agent, a white gasoline substitute and a trichloroethylene substitute;
step three: uniformly and intensively drying the cleaned waste metal barrels to remove water stains, and adding the air-dried waste metal barrels into a double-shaft shredder for shredding;
step four: adding the shredded iron sheets into a magnetic separator, wherein a magnetic field source adopted by magnetic separation is an electromagnet, and separating the non-metal parts falling off after the waste metal barrel is crushed;
step four: adding the magnetically-separated waste metal into the electric furnace again for preheating, wherein the preheating temperature is between 150 ℃ and 300 ℃, so that the coating on the surface of the waste metal is softened and falls off, and water is evaporated;
step five: adding the preheated waste metal into cold water, heating the metal, expanding the metal, shrinking the metal by the cold water to accelerate the shedding of the surface coating, adding into a cleaning machine, and adding an alkaline industrial cleaning agent, wherein the cleaning agent is one of a weakly alkaline water-based cleaning agent WHC-2 and an alkaline cleaning agent WSG-130;
step six: and (3) air-drying the cleaned waste metal, adding the metal into a compressor, pressing the metal into blocks for storage, and spraying antirust oil on the surface of the blocks.
And (4) treating the sewage cleaned in the second step and the fifth step and then discharging the sewage, wherein the sewage treatment method is a micro-electrolysis organic wastewater treatment technology.
Example 1
An environment-friendly treatment method for waste metal barreling dry-method comprehensive utilization comprises the following steps:
the method comprises the following steps: waste metals are barreled and screened, and are classified into harmful materials and harmless materials according to the difference of the originally contained materials;
step two: respectively adding the harmful material waste metal barrel and the harmless material waste metal barrel into different cleaning machines for cleaning, wherein the cleaning solution is a solvent type cleaning agent, and the solvent type cleaning agent is a hydrocarbon cleaning agent;
step three: uniformly and intensively drying the cleaned waste metal barrels to remove water stains, and adding the air-dried waste metal barrels into a double-shaft shredder for shredding;
step four: adding the shredded iron sheets into a magnetic separator, wherein a magnetic field source adopted by magnetic separation is an electromagnet, and separating the non-metal parts falling off after the waste metal barrel is crushed;
step four: preheating the magnetically separated waste metal in an electric furnace again at 150 deg.c to soften the paint on the surface of the waste metal and evaporate water;
step five: adding the preheated waste metal into cold water, heating the metal, expanding the metal, shrinking the metal by the cold water to accelerate the shedding of the surface coating, adding into a cleaning machine, and adding an alkaline industrial cleaning agent, wherein the cleaning agent is one of a weakly alkaline water-based cleaning agent WHC-2 and an alkaline cleaning agent WSG-130 PH;
step six: and (3) air-drying the cleaned waste metal, adding the metal into a compressor, pressing the metal into blocks for storage, and spraying antirust oil on the surface of the blocks.
Example 2
An environment-friendly treatment method for waste metal barreling dry-method comprehensive utilization comprises the following steps:
the method comprises the following steps: waste metals are barreled and screened, and are classified into harmful materials and harmless materials according to the difference of the originally contained materials;
step two: respectively adding the harmful material waste metal barrel and the harmless material waste metal barrel into different cleaning machines for cleaning, wherein the cleaning solution is a solvent type cleaning agent, and the solvent type cleaning agent is a white gasoline substitute;
step three: uniformly and intensively drying the cleaned waste metal barrels to remove water stains, and adding the air-dried waste metal barrels into a double-shaft shredder for shredding;
step four: adding the shredded iron sheets into a magnetic separator, wherein a magnetic field source adopted by magnetic separation is an electromagnet, and separating the non-metal parts falling off after the waste metal barrel is crushed;
step four: preheating the magnetically separated waste metal in the electric furnace at 200 deg.c to soften the paint on the surface of the waste metal and evaporate water;
step five: adding the preheated waste metal into cold water, heating the metal, expanding the metal, shrinking the metal by the cold water to accelerate the shedding of the surface coating, adding into a cleaning machine, and adding an alkaline industrial cleaning agent, wherein the cleaning agent is one of a weakly alkaline water-based cleaning agent WHC-2 and an alkaline cleaning agent WSG-130;
step six: and (3) air-drying the cleaned waste metal, adding the metal into a compressor, pressing the metal into blocks for storage, and spraying antirust oil on the surface of the blocks.
Example 3
An environment-friendly treatment method for waste metal barreling dry-method comprehensive utilization comprises the following steps:
the method comprises the following steps: waste metals are barreled and screened, and are classified into harmful materials and harmless materials according to the difference of the originally contained materials;
step two: respectively adding the harmful material waste metal barrel and the harmless material waste metal barrel into different cleaning machines for cleaning, wherein the cleaning solution is a solvent type cleaning agent, and the solvent type cleaning agent is a trichloroethylene substitute;
step three: uniformly and intensively drying the cleaned waste metal barrels to remove water stains, and adding the air-dried waste metal barrels into a double-shaft shredder for shredding;
step four: adding the shredded iron sheets into a magnetic separator, wherein a magnetic field source adopted by magnetic separation is an electromagnet, and separating the non-metal parts falling off after the waste metal barrel is crushed;
step four: preheating the magnetically separated waste metal in the electric furnace at 300 deg.c to soften the paint on the surface of the waste metal and evaporate water;
step five: adding the preheated waste metal into cold water, heating the metal, expanding the metal, shrinking the metal by the cold water to accelerate the shedding of the surface coating, adding into a cleaning machine, and adding an alkaline industrial cleaning agent, wherein the cleaning agent is one of a weakly alkaline water-based cleaning agent WHC-2 and an alkaline cleaning agent WSG-130 PH;
step six: and (3) air-drying the cleaned waste metal, adding the metal into a compressor, pressing the metal into blocks for storage, and spraying antirust oil on the surface of the blocks.
And (4) treating the sewage cleaned in the second step and the fifth step and then discharging the sewage, wherein the sewage treatment method is a micro-electrolysis organic wastewater treatment technology.
Example 4
An environment-friendly treatment method for waste metal barreling dry-method comprehensive utilization comprises the following steps:
the method comprises the following steps: waste metals are barreled and screened, and are classified into harmful materials and harmless materials according to the difference of the originally contained materials;
step two: respectively adding the harmful material waste metal barrel and the harmless material waste metal barrel into different cleaning machines for cleaning, wherein the cleaning solution is a solvent type cleaning agent and is one of a hydrocarbon cleaning agent, a white gasoline substitute and a trichloroethylene substitute;
step three: uniformly and intensively drying the cleaned waste metal barrels to remove water stains, and adding the air-dried waste metal barrels into a double-shaft shredder for shredding;
step four: adding the shredded iron sheets into a magnetic separator, wherein a magnetic field source adopted by magnetic separation is an electromagnet, and separating the non-metal parts falling off after the waste metal barrel is crushed;
step four: preheating the magnetically separated waste metal in the electric furnace at 210 deg.c to soften the paint on the surface of the waste metal and evaporate water;
step five: adding the preheated waste metal into cold water, heating the metal, expanding the metal, shrinking the metal by the cold water to accelerate the shedding of the surface coating, adding into a cleaning machine, and adding an alkaline industrial cleaning agent, wherein the cleaning agent is an alkalescent water-based cleaning agent WHC-2;
step six: and (3) air-drying the cleaned waste metal, adding the metal into a compressor, pressing the metal into blocks for storage, and spraying antirust oil on the surface of the blocks.
And (4) treating the sewage cleaned in the second step and the fifth step and then discharging the sewage, wherein the sewage treatment method is a micro-electrolysis organic wastewater treatment technology.
Example 5
An environment-friendly treatment method for waste metal barreling dry-method comprehensive utilization comprises the following steps:
the method comprises the following steps: waste metals are barreled and screened, and are classified into harmful materials and harmless materials according to the difference of the originally contained materials;
step two: respectively adding the harmful material waste metal barrel and the harmless material waste metal barrel into different cleaning machines for cleaning, wherein the cleaning solution is a solvent type cleaning agent and is one of a hydrocarbon cleaning agent, a white gasoline substitute and a trichloroethylene substitute;
step three: uniformly and intensively drying the cleaned waste metal barrels to remove water stains, and adding the air-dried waste metal barrels into a double-shaft shredder for shredding;
step four: adding the shredded iron sheets into a magnetic separator, wherein a magnetic field source adopted by magnetic separation is an electromagnet, and separating the non-metal parts falling off after the waste metal barrel is crushed;
step four: preheating the magnetically separated waste metal in the electric furnace at 300 deg.c to soften the paint on the surface of the waste metal and evaporate water;
step five: adding the preheated waste metal into cold water, heating the metal, expanding the metal, shrinking the metal by the cold water to accelerate the shedding of the surface coating, adding into a cleaning machine, and adding an alkaline industrial cleaning agent, wherein the cleaning agent is an alkaline cleaning agent WSG-130;
step six: and (3) air-drying the cleaned waste metal, adding the metal into a compressor, pressing the metal into blocks for storage, and spraying antirust oil on the surface of the blocks.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.
Claims (7)
1. An environment-friendly treatment method for waste metal barreling dry-method comprehensive utilization is characterized by comprising the following steps:
the method comprises the following steps: waste metals are barreled and screened, and are classified into harmful materials and harmless materials according to the difference of the originally contained materials;
step two: respectively adding the harmful material waste metal barrel and the harmless material waste metal barrel into different cleaning machines for cleaning, wherein the cleaning solution is a solvent type cleaning agent;
step three: uniformly and intensively drying the cleaned waste metal barrels to remove water stains, and adding the air-dried waste metal barrels into a double-shaft shredder for shredding;
step four: adding the shredded iron sheets into a magnetic separator, and separating the non-metal part which falls off after the waste metal barrel is crushed;
step four: preheating the magnetically separated waste metal in the electric furnace again to soften and peel off the paint on the surface of the waste metal and evaporate water;
step five: adding the preheated waste metal into cold water, heating the metal, expanding the metal, shrinking the metal by the cold water to accelerate the shedding of the surface coating, adding the metal into a cleaning machine, and adding an alkaline industrial cleaning agent;
step six: and (3) air-drying the cleaned waste metal, adding the metal into a compressor, pressing the metal into blocks for storage, and spraying antirust oil on the surface of the blocks.
2. The environment-friendly treatment method for waste metal barreling dry-process comprehensive utilization according to claim 1, wherein the cleaning solution is one of a hydrocarbon cleaning agent, a white gasoline substitute and a trichloroethylene substitute.
3. The environment-friendly treatment method for waste metal barreling dry-process comprehensive utilization according to claim 1, wherein the preheating temperature of the fourth step is between 150 ℃ and 300 ℃.
4. The environment-friendly treatment method for waste metal barreling dry-process comprehensive utilization as claimed in claim 1, wherein the alkaline industrial cleaning agent is one of a weakly alkaline water-based cleaning agent WHC-2 and an alkaline cleaning agent WSG-130.
5. The environment-friendly treatment method for waste metal barreling dry comprehensive utilization according to claim 1, wherein the sewage after being cleaned in the second step and the fifth step is discharged after being treated, and the sewage treatment method is a micro-electrolysis organic wastewater treatment technology.
6. The environment-friendly treatment method for waste metal barreling dry-process comprehensive utilization according to claim 1, wherein the anti-rust oil is oily anti-rust oil.
7. The environmental protection treatment method for waste metal barreling dry process comprehensive utilization according to claim 1, wherein the magnetic field source adopted by the magnetic separator is an electromagnet.
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| CN202010522211.7A CN111633006A (en) | 2020-06-10 | 2020-06-10 | Environment-friendly treatment method for dry comprehensive utilization of waste metal in barrel filling |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112439767A (en) * | 2020-09-21 | 2021-03-05 | 湖州金洁静脉科技有限公司 | Secondary crushing and cleaning process for waste packaging materials |
| CN112756371A (en) * | 2020-12-16 | 2021-05-07 | 天津华庆百胜能源有限公司 | Treatment process of waste metal packaging container and adsorption medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112439767A (en) * | 2020-09-21 | 2021-03-05 | 湖州金洁静脉科技有限公司 | Secondary crushing and cleaning process for waste packaging materials |
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Application publication date: 20200908 |