KR20110057067A - Dismanting method of waste transformer for poly chlorinated biphenyl recycling method using mobile unit type purification process system - Google Patents

Abstract

PURPOSE: A disassembling method of a waste transformer is provided to safely separate polluted insulating oil after purifying, and to prevent the contamination of the insulating oil by an operator during a treatment process. CONSTITUTION: A disassembling method of a waste transformer comprises the following steps: purifying polluted insulating oil by reducing the concentration of polychlorinated biphenyl less than 2ppm(S1); oil-draining the purified insulating oil to a tank lorry of a vehicle(S2); washing the insulating oil with a washing solution(S3); drying the inside of the waste transformer with a blower and a heater(S4); disassembling the dried waste transformer(S6); and transporting the disassembled waste transformer(S7).

Description

Dismanting method of waste transformer for poly chlorinated biphenyl recycling method using mobile unit type purification process system}

The present invention relates to a method of dismantling a waste transformer that has been purged by a polychlorinated biphenyls (PCBs) treatment method using a mobile purification process equipment, and more particularly to insulating oil contaminated with polychlorinated biphenyls (PCBs) For large transformers that cannot be moved by vehicle, polychlorinated biphenyls are stored at the site when the insulating oil contaminated with polychlorinated biphenyls (PCBs) is safely purified without discharging pollutants at the site. (PCBs) Polychlorinated biphenyls using mobile purification process equipment that can safely remove the insulating oil removed to less than 2ppm, and disintegrate the insulating oil adsorbed inside the waste transformer with a cleaning solution and then dismantle it to prevent contamination by workers. (PCBs) relates to a method of dismantling a waste transformer that has been cleaned by a method of treatment.

As is well known, PCBs (PCBs, Polychlorinated biphenyls) contained in contaminated insulating oils in waste transformers are very stable organic compounds produced by the reaction of chlorine and biphenyls. It melts well and has been widely used in transformers and electrical insulators due to its high insulation and heat preservation.

These PCBs are one of Persistent Organic Pollutants that are highly toxic and slow to break down and cause damage in the ecosystem for a long time. They are known to cause strong carcinogenic effects and birth defects in the body. As it turns out that the body is not absorbed into the body but only the contact causes harm to the human body, the production and use of the product is recently restricted, and the product containing the fish is hardly reproduced.

However, in the case of a transformer produced using insulating oil, when the life of the product has to be disposed of, the PCB is generated in the insulating oil during the use of the transformer, so that the insulating oil is severely contaminated and contains more than 2 ppm of PCBs. There were many cases. In this case, since the technology to purify and recycle the insulating oil is not introduced in the process of disposing of the waste transformer, it is not only a waste of resources caused by simply washing or incineration but also a problem such as environmental pollution.

That is, in the past, domestic companies have used a high temperature incineration and melt treatment method, a high temperature pyrolysis technique, or a dechlorination method as a method of treating contaminated insulating oil containing PCBs, but the high temperature incineration has been performed. And melting treatment method has a lot of room for civil complaints due to high generation of dioxin and high concentration of pollution, and high temperature pyrolysis technology is suitable for processing solid PCBs, but it takes long processing time and space limitation. Among the dechlorination methods, the sodium method is a method developed and applied in Europe, and there is a risk of explosion, and it is known that there is an actual explosion in foreign countries.

Therefore, there is a need to develop a new system that can improve the problems of the purification system and the disposal process for recycling the contaminated insulating oil containing PCBs (PCBs).

In this regard, a patent application related to a system capable of purifying a high concentration of polychlorinated biphenyls (PCBs) contaminated in a lung transformer by a low concentration insulating oil of less than 2 ppm was recently filed by the present applicant. Patent Registration No. 0914156 (2009.8.20. Registration, name: was registered as a waste power equipment recycling processing system.

That is, the Patent No. 0914156 purifies the insulating oil contaminated with 2 ppm or more of PCBs using a reaction catalyst through a chemical treatment device, and reproduces the insulating oil having less than 2 ppm of PCBs, thereby recycling the insulating oil. In addition to contributing to the development of the industry, it is also providing a waste power equipment recycling processing system that seeks to solve various problems such as environmental pollution generated during the disposal of waste power equipment.

The waste power equipment recycling treatment system disclosed by the present applicant has been directed to a technology for collecting a movable waste transformer and refining treatment in a factory equipped with a recycling treatment system through vehicle movement.

Therefore, most of the movable waste transformers can be purified through the waste power equipment recycling processing system disclosed in Patent No. 0914156 so that necessary parts can be recycled.

However, at present, there are a large number of large transformers that cannot be moved by a vehicle in Korea as well as in foreign countries. It must be cleaned directly at the site where the transformer is installed.

However, until now, there is no known technology to directly purify and reuse large transformers that cannot be moved and transported by such vehicles in the field. The technology level for disposing of large transformers is far behind.

Accordingly, the present invention has been researched and developed as the necessity of developing a new recycling processing system for waste power equipment such as a large waste transformer which cannot be moved as described above, the present invention purifies the insulating oil contaminated with PCBs (PCBs) When the large waste transformer cannot be reused and must be discarded afterwards, after purifying with insulating oil containing less than 2 ppm of PCBs, the insulating oil is safely separated, and the insulating oil adsorbed inside the transformer is removed by washing and drying. The object of the present invention is to provide a dismantling method of a waste transformer that has been purged by polychlorinated biphenyls (PCBs) using a mobile purification process facility that can be treated to prevent contamination by workers.

In other words, in the present invention, when the waste transformer is difficult to be reused and disposed of, the large transformer is disposed of through a conventional dismantling process after the contaminated insulating oil inside the large transformer is purged with a mobile purifier. At this time, the oil to be reused by draining the insulating oil purified to less than 2ppm PCB in a separate tank, and after dismantling the waste transformer and carrying out the washing step and drying step inside the waste transformer in the field to transfer to the vehicle It is an object of the present invention to provide a dismantling method of a waste transformer that has been purged by a method of treating polychlorinated biphenyls (PCBs) using a mobile purifying process facility.

The present invention for achieving the above object is a mobile type that can carry out the purification step of purifying the insulating oil contaminated with PCBs in PCBs (PCBs) less than 2ppm in a large closed transformer transformer can not be collected by the vehicle If it is determined that it is not possible to reuse the large-scale waste transformer in which the insulating oil purification is completed by the method of treating polychlorinated biphenyls (PCBs) using a purification process facility, it is necessary to dismantle the PCB 2ppm through the purification step. Insulating oil draining step of connecting the motor to the discharge valve of the waste transformer in order to recover the less than the treated insulation oil to drain the insulation oil in the waste transformer to the tank lorry of the vehicle; After the insulating oil oil draining step, a multi-angle injection nozzle is inserted into the inlet valve of the waste transformer and connected by a hose to inject a cleaning liquid through the pressure of the pressurized motor to clean the insulating oil of PCBs adsorbed within the waste transformer by less than 2 ppm. Internal washing step; After completing the washing step, by connecting the blower to the inlet valve of the waste transformer and the heater, and the first and second carbon filters to the discharge valve of the waste transformer in sequence by the heater 330 A drying step inside the waste transformer which is dried by heating to a temperature of 60 ° C. to 70 ° C. and blowing it through a blower to discharge the air discharge in the waste transformer 100 to the atmosphere through the first and second carbon filters; Dismantling method of waste transformer purified by polychlorinated biphenyls (PCBs) processing method using mobile purification process equipment including waste transformer disassembly step of dismantling in situ through normal waste transformer dismantling process after finishing drying step Its features are provided.

Here, the present invention has a mounting portion having a cargo crane, a bellows-type hermetic structure for mounting and dismantling the closed transformer transformer, and a drain and a drain that can be collected when leakage occurs on the bottom surface of the mounting portion. It is preferable to further include a vehicle transport step of mounting and transporting the waste transformer dismantled in the field through the dismantling step through a vehicle having an oil tank connected to the.

In the present invention, even when a large transformer purifying contaminated polychlorinated biphenyls (PCBs) insulating oil cannot be recycled and disposed of, the contaminated insulating oil in a large waste transformer is 2 ppm of polychlorinated biphenyls (PCBs). After purifying to less than one, the insulating oil is safely separated, and the insulating oil adsorbed inside the transformer is cleaned and dismantled after washing with drying solution, so that it can be processed quickly so as not to be contaminated by the workers. The non-ferrous metals contained in the waste power equipment can be recycled, and the cleaning liquid and insulating oil used in the washing process can be transported to the factory and separated by a centrifuge for recycling.

1 is a block flow diagram showing a process flow of a polychlorinated biphenyls (PCBs) processing method using a mobile purification process equipment according to the present invention.
Figure 2 is a flow chart showing the purification process of the mobile purification process equipment used in the polychlorinated biphenyls (PCBs) processing method using the mobile purification process equipment according to the present invention.
Figure 3 is an overall process diagram schematically showing the process of dismantling the waste transformer after purifying the contaminated insulating oil in the waste transformer through a method of treating polychlorinated biphenyls (PCBs) using a mobile purification process equipment according to the present invention.
Figure 4 is a schematic illustration showing the vehicle structure used in the transfer step in the dismantling method of the waste transformer purified by the polychlorinated biphenyls (PCBs) processing method using a mobile purification process equipment according to the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

At this time, the thickness of the lines or the size of the components shown in the accompanying drawings for explaining the preferred embodiment of the present invention may be exaggerated or omitted for clarity and convenience of description, according to the reference numerals written in the drawings Terms given are terms defined in consideration of functions in the present invention, which may vary according to the intention or convention of a user or an operator.

As shown in Figures 1 to 3, the polychlorinated biphenyls (PCBs) processing method using a mobile purification process equipment according to the present invention, recycling or discarding a large waste transformer that is not movable by a vehicle As a method applied to the process, the waste power equipment recycling processing system of Patent No. 0914156, which is patented by the present applicant, performs a purification process in a factory by putting a waste transformer which is collected by a vehicle into a factory. By chemically treating contaminated insulating oil in a large transformer directly at the site, it is possible to reuse the large transformer as it is or to dispose of the large transformer quickly without disposal by surrounding the large transformer. Is to provide.

In other words, the present invention is characterized by implementing a mobile treatment method that can be carried out directly to the purification process at the site where a large transformer is installed through a vehicle equipped with a mobile purification process equipment.

In other words, the mobile purification process equipment mounted on a vehicle according to the present invention extracts the insulating oil contaminated by PCBs (PCBs) contained in the large waste transformer 100 or more, such as heating, chemical treatment, adsorption, filtration, vacuum dehydration, and the like. By carrying out the various processes sequentially, it is equipped with a mobile purification process equipment capable of purifying with low concentration insulating oil of less than 2 ppm PCBs.

As described above, a method of treating polychlorinated biphenyls (PCBs) using a mobile purification process facility capable of purifying contaminated insulating oil at a site where a large waste transformer 100 which is not transported by a vehicle and installed is largely a purification step. (S1), judging step (S2), insulating oil draining step (S3), washing step (S4), drying step (S5), waste transformer dismantling step (S6), can be divided into a transfer step (S7).

Here, as shown in Figures 1 to 3, the purification step (S1) is directly collected through the mobile purification process equipment 200 at the installation site of the large waste transformer 100 is impossible to move by collecting the vehicle. Means step.

That is, since the large-scale waste transformer 100 applied to the present invention cannot be collected and moved by a vehicle, the purification process may be performed through the waste power equipment recycling treatment system disclosed in Korean Patent No. 0914156, which is conventionally registered by the present applicant. Can't.

Therefore, it is to be purified directly on site through the mobile purification process equipment (200).

At this time, the mobile purification process equipment 200 is equipped with a mobile purification equipment capable of carrying out the purification process through the removal of polar substances and chemical treatment while being mounted on a vehicle.

Here, as shown in FIG. 2, the mobile purification process facility 200 is connected through an inlet valve 101 and a discharge valve 102 of a large closed transformer 100 to circulate contaminated insulating oil circulating oil ( And a hydraulic circulation path 230 branched from the inlet of the oil circulation path 220 to the vacuum dehydration unit 208.

That is, in a continuous recycling method of insulating oil (oil) circulation without leakage of the insulating oil in the waste transformer 100, to restore the chemical properties (oxidation stability) of the insulating oil (oil), to remove sulfur corrosion pollutants, DBDS (Dibenzyldisulfide), It is designed to purify the insulating oil in the process of removing oil-soluble organometallic pollutants.

To this end, the oil circulation path 220 may be heat-treated at a predetermined temperature (eg, 110 ° C.) after primary filtration 201 of the insulating oil exiting the waste transformer 100 through the motor pumping 202. A heating unit 203 is provided, and a chemical processing unit 204 for chemically treating the insulating oil heated by the heating unit 203 in a cartridge containing an active chemical reactant is provided.

In addition, the oil circulation path 220 is provided with a cooling unit 205 for cooling the insulating oil chemically treated by the chemical processing unit 204, the rear of the cooling unit 205 in the insulating oil passed through the cooling unit 205 Adsorption unit 206 for adsorbing the polar materials included on the active surface of the mud (clay) mixture is provided.

In addition, the vacuum dewatering unit 208 for removing and dehydrating the gas contained in the insulating oil after vacuum 207 of the insulating oil that has passed through the adsorption unit 206 in a vacuum state, the vacuum dehydrating unit 208 A physical filtration unit 210 for performing physical filtration before the final circulating into the waste transformer 100 by the motor pumping (209) through the insulating oil.

Looking at the operation of the mobile purification process equipment 200 having the configuration as described above, first, the oil circulation path 220 of the mobile purification process equipment 200, the inlet valve 101 and the discharge valve 102 of the waste transformer 100 ) So that the insulating oil can be circulated.

At this time, the mobile purification process facility 200 is preferably arranged as close as possible to the electrical equipment using a forklift or a crane.

In addition, a safe distance may be secured from the conductor and the operating part where voltage flows during installation, and the transformer may be installed with a current-carrying transformer.

In particular, in the process of connecting the oil circulation path 220 is equipped with an automatic shut-off system for blocking the insulating oil outflow.

This automatic shut-off system is a protection system developed to detect low concentrations along with oil leaks. It is a connecting conduit using two steel pipe hoses with vacuum interspaces.

In other words, the connection pipe for leak monitoring has a structure in which an insulating oil hose is located inside, and an vacuum space interspace is formed outside.

At this time, the interspace pressure is adjusted by the pressure switch.

When the oil circulation path 220 is connected in such a manner as to monitor the leakage of the insulating oil as described above, the hydraulic circulation path 230 branched from the inlet side of the oil circulation path 220 is connected.

The hydraulic circulation path 230 is provided by the need to determine the moisture, air and other gaseous pollutants in the oil circulation path 220, and the technical measurement to be carried out to avoid the deformation of the circulating oil inside the winding, below the set value It can be used to identify a decrease in flow rate, to avoid small changes in hydraulic pressure and flow rate, and to be used as a device for restraining bubbles in a hose.

In particular, on the hydraulic circulation path 230 is provided with an oil level monitoring sensor for detecting when the discharge and the process stop, the hydraulic circulation path 230 is provided with a pressure control valve to prevent the insulating oil (oil) circulation in an emergency.

As such, when the oil circulation path 220 and the hydraulic circulation path 230 are connected and completed, the portable purification process facility 200 is operated to purify the contaminated insulating oil while circulating through the oil circulation path 220.

At this time, the mobile purification process equipment 200 for purifying the insulating oil by chemical treatment and physical treatment through the purification process such as heating, chemical treatment, adsorption, filtration, vacuum dehydration of the insulating oil contaminated with PCBs (operation conditions) The temperature is preferably 80 ° C. or lower. In addition, the filtration is carried out to 1㎛ or less, the vacuum is 1mBar or less, the flow rate is preferably performed at 500 ~ 2000L / h.

That is, the purification process through the mobile purification process equipment 200 is largely, heating the insulating oil at a set temperature of up to 110 ℃ in the heating unit 203, the PCB (PCBs) through the appropriate chemical reactants in the chemical treatment unit 204 ) Dechlorination to chemical treatment, the adsorption unit 206 to adsorb the polar material through an absorption medium such as mud, degassing and dehydrating in vacuum in the vacuum dewatering unit 208, By repeatedly performing the process of physically filtering the insulating oil in the filtration unit 210, the purification by chemical treatment through the dechlorination of the PCB (PCBs) in the insulating oil contaminated with PCBs (PCBs).

Here, the chemical treatment process in the chemical treatment unit 204 is an insulating oil having a concentration of less than 2ppm PCB (PCBs) through the K ⁺ chemical reaction by using a solid catalyst consisting of a cartridge of liquid oil (PCBs) more than 2ppm It is a chemical treatment process to reduce by.

That is, the chemical treatment unit 204 dehalogenates the concentration of PCBs in the insulating oil introduced from the waste transformer 100 to a prescribed concentration using a solid state reagent composed of a cartridge form and a solvent solvent in a liquid state. Dechlorination) and detoxification.

At this time, the reactant and the solvent are the product name, S / CDP R1 RED (hereinafter referred to as "solid sample") produced and sold by SEA MARCONI TECHNOLOGIES of Italy, and L / CDP Solvents of R1 RED (hereinafter referred to as "liquid sample") are used.

That is, the general information of the solid sample and the liquid sample is shown in Table 1 below.

division Solid sample Liquid sample product name S / CDP R1 RED (Solid) L / CDP R1 RED (Liquid)
Identification component Potassium hydroxide
Dielectrical Mineral Oil
Inorganic Oxides Poly-glycols
Dielectrical Mineral Oil
Inorganic Oxides Heating limit Less than 150 ℃ Less than 150 ℃ Bulk density 1,10 g / cm ³ 1,00 g / cm ³ Company Name SEA MARCONI TECHNOLOGIES (Italy) Reference See US Patent No. 5,663,479

The reactant solid sample mainly contains alkali hydroxide and polyether (polymer) as the main active mixture, and the porosity of Inorganic Oxides (SiO2, Al2O3, Fl2O3-a compound such as diatomaceous earth) By precisely inserting the K ⁺ element into the reactant to produce a reactant so that it remains only harmless to sludge produced after the chemical reaction.

These reactants and the insulating oil is to dechlorinate the insulating oil through a chemical reaction as shown in formula (1) below.

In this case, M = K ⁺ , n and m are chlorine numbers in the range of 0 to 5, R is a hydrogen atom or a hydrocarbon.

And n on the polymer is the monomer number and can range from 2 to 200.

That is, the reaction between the polymer and the salt of the reactant as a solid sample results in contact with PCBs to remove chlorine, and eventually chlorine reacts with alkali on PCBs to cause chlorination.

And, the chloride is left in the reactant or insulating oil which is a solid sample, and is then absorbed and discharged by the adsorption unit 205.

The removal material degassed and dehydrated in the vacuum dewatering unit 208 is discharged to the outside by the vacuum pump discharge treatment system 211.

At this time, a sample of the insulating oil (oil) to be purified is extracted to continuously determine the level of purification through equipment inspection.

In particular, in order to monitor the circulation process of the insulating oil, it is preferable to build a process monitoring equipment in the mobile purification process facility (200).

Accordingly, the mobile purification process facility 200 according to the present invention can monitor all process elements such as flow rate, pressure, temperature, oil level, and a logical process adjustment system capable of executing an immediate stop of oil circulation in an emergency ( It has a PLC (A Logical Process Control system).

In other words, it is equipped with an automatic monitoring sensor that detects the temperature, pressure, flow rate, and oil level required for process adjustment.

Such process monitoring is an automated system that can be carried out without personnel, and therefore it is desirable to have a transmission device that transmits acquired data to the operator or enables remote transmission of alarms in an emergency.

In addition, in order to prevent accidental accidents that may occur during the purification process, it is preferable to provide a smoke, fire detection sensor and the like.

After confirming the working process through such process monitoring work, if it is confirmed that purification is performed to less than 2 ppm of PCBs required by the sampling (sampling) inspection of the purified insulating oil, the mobile purification process by cutting off electric and hydraulic pressure After completing the operation of the facility 200, and after the inspection of the equipment by removing the removable purification process equipment 200 from the waste transformer 100, the purification step (S1) is finished.

On the other hand, when it is determined that the waste transformer 100 cannot be reused in the state where the purification step S1 is completed as described above, the waste transformer 100 should be discarded.

Substantially, it may be determined in advance before performing the purification step (S1) whether or not to clean and reuse or discard the contaminated large waste transformer 100.

However, in the present invention, only after performing the purification step (S1) for reuse of the contaminated large waste transformer 100, it is only described as a later judgment whether the disposal.

That is, even if the large-scale contaminated transformer 100 cannot be reused, even if it is dismantled and disposed of at the site, the purification step S1 is basically required, and the subsequent steps are based on the purification step S1. It will be described as a step for dismantling and discarding the waste transformer (100).

Hereinafter, the steps for dismantling and discarding the waste transformer 100 in the polychlorinated biphenyls (PCBs) treatment method using the mobile purification process equipment of the present invention will be described in more detail.

When the purification step S1 is completed as described above, as shown in FIG. 1, the determination step S2 of determining whether to reuse the large-scale waste transformer 100 in which the insulating oil purification is completed is performed.

Here, if it is determined that there is a necessity to dismantle because it is impossible to reuse the large-scale closed transformer 100, the insulating oil treated to less than 2ppm PCBs through the purification step (S1) as shown in FIG. Insulating oil drainage step (S3) to recover the.

In the insulating oil oil distribution step (S3), the motor 311 is connected to the discharge valve 102 of the waste transformer 100, and the tank oil 310 of the separate transport vehicle 300 is used to purify the insulating oil purified in the waste transformer 100. It will be drained.

After the insulating oil draining step (S3), a washing step (S4) for washing the interior of the waste transformer 100 is performed.

That is, even if all the insulating oil purified to less than 2ppm in the waste transformer 100 is drained to the tank lorry 311 mounted in the separate vehicle 300, the insulating oil adsorbed inside the waste transformer 100 remains. Washing step (S4) is necessary to be able to clean.

In the washing step (S4) by inserting a multi-angle injection nozzle to the inlet valve 101 of the waste transformer 100 and connected with a hose to inject a cleaning liquid from the cleaning liquid tank 320 through the pressure of the pressure motor 321, the waste transformer The insulating oil less than 2 ppm of PCBs adsorbed inside the (100) is cleaned.

At this time, for example, HansuClean CR-150, which is a non-flammable water-soluble liquid, is used as a compliance cleaning agent, which is a number of products.

By adjusting the contact angle and the wetting agent through the cleaning liquid, the cleaning liquid, which is not emulsification or fusion, collects and detaches the insulating oil.

Here, looking at the components of the cleaning liquid used in the present invention, as shown in Table 2 below.

Composition / information on ingredients Name ingredient CAS number Content (%)
HANSUCLEAN CR-150
(product name)

2-Butoxyethanol
D-Limonens
Dimethyl Glutarate
Polyethylene glycol fatty acid ester
Other
111-76-2
5989-27-5
001119-40-0
9005-65-5
-
20 25
1.5-2.0
5.0 7.0
5-7
rest

The cleaning liquid requires less contact angle than insulating oil, and the wetting agent is required to be more flexible. In the present invention, this is achieved by adjusting hydrophilic hydrophilic balance (HLB).

Through such a washing solution, the washing step (S4) is continuously repeated to remove the insulating oil adsorbed inside the waste transformer.

In addition, the finished cleaning solution and insulating oil mixture is re-collected into the cleaning solution tank 320 to be separated and recycled through a centrifuge in a factory equipped with a facility capable of separating the cleaning solution and the insulating oil.

After completing the washing step (S4), performs a drying step (S5) for drying the inside of the waste transformer.

In the drying step (S5), the blower is connected to the inlet valve 101 of the closed transformer 100, the heater 330 is connected, and the first and second secondary valves to the discharge valve 102 of the closed transformer 100. The drying operation is performed while the carbon filters 331 are sequentially connected.

That is, in the drying step (S5) is heated to a temperature of 60 ~ 70 ℃ through the heater 330, by blowing the heated air to the blower by supplying the inside of the waste transformer, to dry the inside of the waste transformer 100 In this case, the exhaust air in the waste transformer dried and heated by hot air supplied into the waste transformer passes through the first and second carbon filters 331 and is discharged into the atmosphere in the form of clean air.

By finishing the washing step (S4) and the drying step (S5), the waste transformer 100 is cleanly washed and dried contaminants immediately perform the dismantling step (S6).

The dismantling step (S6) is to be dismantled in the field through a conventional waste transformer dismantling process, the solid material such as metal and non-metallic material is dismantled and sorted by type to a size that can be based on the vehicle.

At this time, the solid material is classified as brass, copper, silicon steel, stainless steel, iron, insulators, insulating paper, resins, etc. The recycled or non-recycled material is transported to a vehicle, consigned, and disposed of.

That is, the waste transformer 100 dismantled in the field through the dismantling step (S6) is to perform a vehicle transfer step (S7) that is separately collected by type and carried on the vehicle.

Here, as shown in Figure 4, the vehicle 400 used in the vehicle transport step (S7) has a cargo crane 402, the mounting portion 403 for mounting the dismantled closed transformer 100 can be opened and closed. It is preferable to use a vehicle having a closed type structure having a bellows type, and having a drainage port capable of collecting oil leakage in the bottom surface of the mounting portion 403 and an oil tank 401 connected to the drainage port.

As mentioned above, although the present invention has been described with reference to the illustrated embodiments, it is only an example, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom.

Therefore, the scope of the present invention should be defined by the appended claims and their equivalents.

100: closed transformer 101: inlet valve
102: discharge valve 200: mobile purification process equipment
203: heating part 204: chemical treatment part
205: cooling unit 206: adsorption unit
208: vacuum dewatering unit 210: filtration unit
220: oil circulation path 230: hydraulic circulation path
300, 400: vehicle 310: tank lorry
320: cleaning liquid tank 330: heater
331: carbon filter 403: mounting portion
S1: purification step S2: judgment step
S3: insulating oil draining step S4: washing step
S5: Drying Step S6: Dismantling Step
S7: transfer step

Claims (2)

Mobile purification process facility 200 capable of carrying out the purification step (S1) to purify the insulating oil contaminated with PCBs in PCBs (PCBs) less than 2ppm collected in the vehicle is impossible to move by When it is determined that it is necessary to dismantle because it is impossible to reuse the large waste transformer 100 in which the insulating oil purification is completed by the polychlorinated biphenyls (PCBs) processing method using the (S2),
The tank lorry 310 of the vehicle 300 by connecting the motor 311 to the discharge valve 102 of the waste transformer 100 to recover the insulating oil processed to less than 2 ppm PCBs through the purification step (S1). An insulating oil draining step (S3) of draining the insulating oil in the furnace transformer 100;
After the insulating oil draining step (S3), the multi-angle injection nozzle is inserted into the inlet valve 101 of the waste transformer 100 and connected with a hose to inject a cleaning liquid through the pressure of the pressure motor 321, so that the waste transformer 100 inside A transformer internal cleaning step (S4) for cleaning insulating oil of less than 2 ppm of PCBs adsorbed to the PCB;
After the washing step (S4), the blower is connected to the inlet valve 101 of the closed transformer 100, and the heater 330 is connected to the discharge valve 102 of the closed transformer 100, 1, In the state in which the secondary carbon filter 331 is connected in sequence, by heating to a temperature of 60 ~ 70 ℃ by the heater 330 to blow through the blower, the air discharge in the waste transformer 100 is discharged to the first and second carbon Drying transformer internal drying step (S5) to be dried while discharged to the atmosphere through the filter 331;
Treatment of polychlorinated biphenyls (PCBs) using a mobile purification process facility, characterized in that after the drying step (S5) comprises a waste transformer dismantling step (S6) of dismantling in the field through a conventional waste transformer dismantling process. Dismantling method of the waste transformer purified by the method. The method of claim 1,
Cargo crane 402, the mounting portion 403 having an open and close bellows type closed structure for mounting the dismantled closed transformer 100, and when the oil leakage occurs on the bottom surface of the mounting portion 403 The vehicle transport step (S7) for mounting and transporting the displaced transformer 100 dismantled in the field through the dismantling step (S6) through the vehicle 400 having a drain port and an oil tank 401 connected to the drain hole. A dismantling method of a waste transformer purged by a polychlorinated biphenyls (PCBs) using a mobile purification process equipment, characterized in that it further comprises.

Images