Kiloton transformer dangerous waste oil treatment system and application

Abstract

The invention discloses a kiloton-level transformer dangerous waste oil treatment system and application, the treatment system comprises a kiloton-level dangerous waste oil treatment system body and a ton-level distributed temporary storage warehouse, and the temporary storage warehouse is in communication connection with the kiloton-level dangerous waste oil treatment system body through an APP mobile terminal; the kiloton dangerous waste oil treatment system body comprises a plurality of foundations, a plurality of oil tanks arranged on the foundations and temporary storage vehicles; a magnetic turning column liquid level meter for indicating the actual height of the dangerous waste oil and an oil level sensor for detecting the liquid height are arranged in each oil tank, and rock wool composite boards are laid on the top of each oil tank and the top of the temporary storage warehouse. A plurality of 100-ton-level and 50-ton-level oil tanks are adopted, so that the storage amount and storage efficiency of the dangerous waste oil are improved; the leakage-proof groove is formed in the bottom of the oil tank, so that the leakage-proof performance is improved; the rock wool composite board contains biomass modified XDK-CS, has an excellent flame-retardant insulation effect, can effectively prevent the oil tank from catching fire and burning, and improves the fireproof performance.

Description

Technical Field

[0001] The present invention relates to the field of transformer hazardous waste oil treatment. Specifically, it relates to a thousand-ton transformer hazardous waste oil treatment system and its application. Background Art

[0002] Comprehensive waste transformer oil contains harmful substances such as sulfides and polychlorinated biphenyls, and is listed in the "National Hazardous Waste List". The traditional disposal methods have the following problems: 1) Low storage efficiency: The capacity of a 200-ton storage tank is insufficient, and the anti-leakage measures are not perfect, which is likely to cause environmental pollution; 2) High recovery cost: The efficiency of manually pumping waste oil is low, requiring multiple people to cooperate, which is time-consuming and laborious; 3) Lack of monitoring: There is a lack of digital management, and the status of the oil product cannot be monitored in real time, resulting in a low recovery rate; 4) Environmental protection risks: The anti-leakage and fire prevention performance is poor, and it cannot meet the requirements of the "Pollution Control Standard for Hazardous Waste Storage".

[0003] The existing technologies are difficult to meet the high-efficiency disposal requirements of thousand-ton waste oil. Therefore, the present invention proposes a thousand-ton hazardous waste disposal equipment integrating digital monitoring, anti-leakage and fire prevention, and modular storage. Summary of the Invention

[0004] In order to solve the above existing deficiencies, the present invention provides a thousand-ton transformer hazardous waste oil treatment system and its application.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A thousand-ton transformer hazardous waste oil treatment system includes a thousand-ton hazardous waste oil treatment system body and a ton-level distributed temporary storage warehouse. The temporary storage warehouse is communicatively connected to the thousand-ton hazardous waste oil treatment system body through an APP mobile terminal. The thousand-ton hazardous waste oil treatment system body includes several bases, several oil tanks and temporary storage vehicles arranged on each base. A magnetic flip column liquid level gauge for indicating the actual height of the hazardous waste oil and an oil level sensor for detecting the liquid height are arranged in each oil tank. Rock wool composite boards containing biomass-modified chitosan adsorbent XDK-CS are laid on the top of each oil tank and the top of the temporary storage warehouse. The base includes a first base and a second base. The oil tanks include 100-ton oil tanks arranged on the first base and 50-ton oil tanks arranged on the second base. Anti-leakage grooves are opened below the first base and the second base, and the anti-leakage grooves are connected through an anti-leakage channel. The anti-leakage channel is filled with biomass-modified chitosan adsorbent XDK-CS. A pipeline is arranged between the bottom of each 50-ton oil tank and the anti-leakage channel, and a oil pump is arranged on the pipeline.

[0007] Furthermore, a temporary storage tank for temporarily storing hazardous waste oil, a camera for collecting the situation in the temporary storage warehouse, and a data transmission module for transmitting the oil level and oil quantity information of the temporary storage tank in the temporary storage warehouse to a data processing center are arranged in the temporary storage warehouse.

[0008] Further, an oil sump is provided at the bottom of the temporary storage tank. The oil sump is connected to a diversion ditch through a pipeline. The diversion ditch is arranged on the ground and close to the oil tank. The diversion ditch is used to collect the hazardous waste oil accidentally leaked during the temporary storage process and allow the hazardous waste oil to flow into the oil sump through the pipeline.

[0009] Further, the data transmission module adopts GPRSDTU. The process of its connection with the data processing center is as follows: Insert a SIM card with GPRS function enabled into the wireless terminal DTU. After the DTU is powered on, it first registers to the GPRS network, and then establishes a connection with the data processing center through the GPRS network.

[0010] Further, the APP mobile terminal is arranged in the temporary storage library. It includes a main permission, a first-level permission, a second-level permission, and a third-level permission. Among them, the main permission is the highest permission, and the third-level permission is only for viewing; all membership permissions can be adjusted by the general permission administrator at any time; the general permission administrator can classify and stratify all membership permissions in the jurisdiction area, set alarm reminders, and set alarm values.

[0011] Further, the oil pump adopts a micro vortex pump, and its parameters are: rotation speed 2800 r / min, suction lift 6 m, head 20 m, and electric power 125 W.

[0012] Further, the preparation process of the biomass-modified chitosan adsorbent XDK-CS is as follows:

[0013] (1) Take the chitosan gel solution, add the silica-alumina gel, start stirring, and slowly drop the NaOH solution with a concentration of 2 mol during the stirring process. After stirring for 0.5 h, a mixed solution is obtained; among them, the mass-volume ratio of the silica-alumina gel to the chitosan gel solution is 9:100;

[0014] (2) Stir the mixed solution in a water bath at a constant temperature of 70 °C for 2 h to slowly mineralize the chitosan gel solution on the surface of the silica-alumina gel to form a chitosan gel;

[0015] (3) Adjust the chitosan gel to neutral, then age it for 24 h, and dry it to obtain the chitosan adsorbent XDK-CS;

[0016] (4) Package the chitosan adsorbent XDK-CS with a nylon cloth packaging bag to obtain the first chitosan adsorbent XDK-CS;

[0017] (5) Mix 2 g of bisphenol-type epoxy resin (E-44) with 1 g of modified aliphatic amine curing agent, and then add them to 50 g of ethanol solution and stir for 10 min;

[0018] (6) Hydrophobic fused silica (PDMS–SiO2) nanoparticles with different weight fractions were added respectively, and stirring was continued for 30 minutes until a homogeneous silicone solution was formed;

[0019] (7) The first chitosan adsorbent XDK-CS was immersed in the silicone solution, and after soaking for 10 min, it was taken out with tweezers;

[0020] (8) The first chitosan adsorbent XDK-CS with the surface immersed in the silicone solution was cured at 90 °C for 2 h to obtain a biomass-modified chitosan adsorbent XDK-CS with a stable superhydrophobic film, large specific surface area and pore radius.

[0021] Furthermore, the water contact angle of the biomass-modified chitosan adsorbent XDK-CS is 136.1°.

[0022] An application of a thousand-ton transformer hazardous waste oil treatment system includes the following specific steps:

[0023] Collect the transformer hazardous waste oil into a transport vehicle through a waste oil recovery device;

[0024] The transport vehicle sends the hazardous waste oil to a 100-ton oil tank or a 50-ton oil tank in the thousand-ton hazardous waste oil treatment system body;

[0025] When the hazardous waste oil in the 100-ton oil tank leaks, it can be collected through a leak-proof tank, and the hazardous waste oil in the leak-proof tank is pumped into the 50-ton oil tank through an oil pump;

[0026] When the transport vehicle transports excess hazardous waste oil, the excess hazardous waste oil is sent to a temporary storage warehouse for temporary storage.

[0027] The present invention has the following beneficial effects compared with the prior art:

[0028] 1) Several oil tanks of 100 tons and 50 tons are adopted to improve the storage capacity and storage efficiency of hazardous waste oil;

[0029] 2) Through the camera, data transmission module and APP mobile terminal, the oil product state is monitored in real time to improve the recovery rate;

[0030] 3) By opening a leak-proof tank at the bottom of the oil tank, the leak-proof performance is improved;

[0031] 4) By laying rock wool composite boards on the top of the oil tank, inside the leak-proof tank and on the top of the temporary storage warehouse, the fire-proof performance is improved;

[0032] 5) The magnetic turning column liquid level gauge is set to drive the red and white turning columns to flip through the magnetic coupling of the float, and the height of the hazardous waste oil level in the oil tank is indicated in real time;

[0033] 6) The oil level sensor is set to be used for detecting the height of the hazardous waste oil in real time. Description of the Drawings

[0034] The present invention will be further described below in conjunction with the drawings and specific embodiments:

[0035] Figure 1 is a process schematic diagram of a thousand-ton transformer hazardous waste oil treatment system of the present invention;

[0036] Figure 2 is a schematic diagram of the structural layout at the bottom of the oil tank in the present invention;

[0037] Figure 3 is a schematic diagram of the structure of the biomass-modified chitosan adsorbent XDK-CS;

[0038] Figure 4 is a schematic diagram of the states of the chitosan adsorbent XDK-CS and the biomass-modified chitosan adsorbent XDK-CS under a scanning electron microscope;

[0039] Figure 5 is a schematic diagram of the test results of the combustion thermal expansion performance of the chitosan adsorbent XDK-CS and the biomass-modified chitosan adsorbent XDK-CS;

[0040] Figure 6 is a schematic diagram of the flame retardant effect of different dosages of the biomass-modified chitosan adsorbent XDK-CS.

[0041] In the figures: 1, waste oil recovery device; 2, transport vehicle; 3, thousand-ton hazardous waste oil treatment system body; 301, first foundation; 302, 100-ton oil tank; 303, second foundation; 304, 50-ton oil tank; 4, temporary storage vehicle; 5, magnetic turn column liquid level gauge; 6, anti-leakage tank; 7, anti-leakage channel; 8, biomass-modified chitosan adsorbent XDK-CS. Specific Embodiments

[0042] Example 1

[0043] As Figures 1 to 2As shown in the figure, a thousand-ton transformer hazardous waste oil treatment system includes a thousand-ton hazardous waste oil treatment system body 3 and a ton-level distributed temporary storage warehouse. The temporary storage warehouse is communicatively connected to the thousand-ton hazardous waste oil treatment system body 3 through an APP mobile terminal. The thousand-ton hazardous waste oil treatment system body 3 includes several bases, several oil tanks arranged on each base, and a temporary storage vehicle 4. In each oil tank, there is a magnetic-drum level gauge 5 for indicating the actual height of the hazardous waste oil and an oil level sensor for detecting the liquid height. Rock wool composite boards containing biomass-modified chitosan adsorbent XDK-CS8 are laid on the tops of each oil tank and the top of the temporary storage warehouse. Among them, the working principle of the magnetic-drum level gauge 5 is as follows: when the oil level in the measured container rises or falls, the float in the main pipe of the level gauge also rises or falls accordingly. The permanent magnet in the float transmits through magnetic coupling to the on-site indicator, driving the red and white turning columns to flip 180°. Therefore, when the turning column changes from white to red, it indicates that the oil level of the waste oil in the oil tank has risen; when the turning column changes from red to white, it indicates that the oil level of the waste oil in the oil tank has fallen. The red and white boundary of the indicator is the actual height of the waste oil level in the oil tank.

[0044] The bases include a first base 301 and a second base 303. The oil tanks include a 100-ton oil tank 302 arranged on the first base 301 and a 50-ton oil tank 304 arranged on the second base 303. Leakage prevention grooves 6 are opened below the first base 301 and the second base 303. The leakage prevention grooves 6 are connected through a leakage prevention channel 7. The leakage prevention channel 7 is filled with biomass-modified chitosan adsorbent XDK-CS8. A pipeline is arranged between the bottom of each 50-ton oil tank 304 and the leakage prevention channel 7, and a oil pump is arranged on the pipeline. Among them, the oil pump uses a micro vortex pump, and its parameters are: rotational speed 2800 r / min, suction lift 6 m, head 20 m, and electric power 125 W.

[0045] In a preferred implementation manner of this embodiment, a temporary storage tank for temporarily storing hazardous waste oil, a camera for collecting the situation in the temporary storage warehouse, and a data transmission module for transmitting the oil level and oil quantity information of the temporary storage tank in the temporary storage warehouse to the data processing center are arranged in the temporary storage warehouse.

[0046] In a preferred implementation manner of this embodiment, an oil collecting pool is arranged at the bottom of the temporary storage tank. The oil collecting pool is connected with a diversion ditch through a pipeline. The diversion ditch is arranged on the ground and close to the oil tank. The diversion ditch is used for collecting the hazardous waste oil accidentally leaked during the temporary storage process and enabling the hazardous waste oil to flow into the oil collecting pool through the pipeline.

[0047] In a preferred implementation manner of this embodiment, the data transmission module uses GPRSDTU. The connection process between it and the data processing center is as follows: Put a SIM card with GPRS function enabled in the wireless terminal DTU. After the DTU is powered on, it first registers to the GPRS network, and then establishes a connection with the data processing center through the GPRS network.

[0048] In the preferred implementation mode of this embodiment, the APP mobile terminal is set in the temporary repository, which includes the main permission, the first-level permission, the second-level permission, and the third-level permission. Among them, the main permission is the highest permission, and the third-level permission is only for viewing; all membership permissions can be adjusted by the general permission administrator at any time; the general permission administrator can classify and stratify all membership permissions in the jurisdiction area, set alarm reminders, and set alarm values.

[0049] In the preferred implementation mode of this embodiment, the preparation process of the biomass-modified chitosan adsorbent XDK-CS is as follows:

[0050] (1) Take the chitosan gel solution, add the silica-alumina gel, start stirring, and slowly drop the NaOH solution with a concentration of 2 mol during the stirring process. After stirring for 0.5 h, a mixed solution is obtained; among them, the mass-volume ratio of the silica-alumina gel to the chitosan gel solution is 9:100;

[0051] (2) Stir the mixed solution in a water bath at a constant temperature of 70 °C for 2 h to slowly mineralize the chitosan gel solution on the surface of the silica-alumina gel to form a chitosan gel;

[0052] (3) Adjust the chitosan gel to neutral, then age it for 24 h, and dry it to obtain the chitosan adsorbent XDK-CS;

[0053] (4) Package the chitosan adsorbent XDK-CS with a nylon cloth packaging bag to obtain the first chitosan adsorbent XDK-CS;

[0054] (5) Mix 2 g of bisphenol epoxy resin (E-44) with 1 g of modified aliphatic amine curing agent, and then add it to 50 g of ethanol solution and stir for 10 min;

[0055] (6) Add hydrophobic fused silica (PDMS–SiO2) nanoparticles with different weight fractions respectively, and continue stirring for 30 minutes until a uniform silicone solution is formed;

[0056] (7) Immerse the first chitosan adsorbent XDK-CS in the silicone solution, take it out with tweezers after soaking for 10 min;

[0057] (8) Cure the first chitosan adsorbent XDK-CS with a silicone solution on its surface at 90 °C for 2 h to obtain a biomass-modified chitosan adsorbent XDK-CS with a stable superhydrophobic film, large specific surface area, and large pore radius.

[0058] In this implementation, hydrophobic fused silica (PDMS–SiO2) nanoparticles with six different weight fractions of 0, 1, 2, 3, 4, and 5 wt% are used.

[0059] As Figure 3As shown, it represents the structural schematic diagram of the biomass-modified chitosan adsorbent XDK-CS, where the water contact angle of the biomass-modified chitosan adsorbent XDK-CS is 136.1°.

[0060] As Figure 4 shown, where (a) is the state of the chitosan adsorbent XDK-CS under the scanning electron microscope: the particle shape is relatively regular and the surface is relatively smooth; (b) is the state of the biomass-modified chitosan adsorbent XDK-CS under the scanning electron microscope: the particle surface has obviously become rougher and rougher, the shape has become irregular, the volume of the particles has become larger, and there is a certain agglomeration phenomenon, indicating that the biomass-modified chitosan adsorbent XDK-CS has a large specific surface area and good adsorption effect.

[0061] As Figure 5 shown, where (a) is the schematic diagram of the combustion heat expansion performance test result of the chitosan adsorbent XDK-CS: the residual carbon of the flame retardant material is less and the expansion rate is lower; (b) is the schematic diagram of the combustion heat expansion performance test result of the biomass-modified chitosan adsorbent XDK-CS: the residual carbon rate and the expansion rate are greatly increased, the carbon layer is dense and thick, indicating that the biomass-modified chitosan adsorbent XDK-CS has a higher flame retardant effect.

[0062] As Figure 6 shown, it represents the flame retardant effect of different dosages of the biomass-modified chitosan adsorbent XDK-CS, where (a) to (d) respectively represent the size of the combustion flame and the molten drop phenomenon after combustion when the dosage of the biomass-modified chitosan adsorbent XDK-CS is 0%, 5%, 10%, 15%, and 20%.

[0063] The above flame retardant test results are shown in Table 1. When the dosage of the biomass-modified chitosan adsorbent XDK-CS is 15%, its flame retardant grade reaches V-1; when its dosage is 20%, its flame retardant grade reaches V-0, and the oxygen index is 25% higher.

[0064] Table 1 Flame retardant test results of the biomass-modified chitosan adsorbent XDK-CS

[0065]

[0066] Example 2

[0067] As Figures 1 to 2 shown, the application of a thousand-ton transformer hazardous waste oil treatment system includes the following specific steps:

[0068] Collect the transformer hazardous waste oil into the transport vehicle 2 through the waste oil recovery device 1;

[0069] The transport vehicle 2 sends the hazardous waste oil to the 100-ton oil tank 302 or the 50-ton oil tank 304 in the thousand-ton hazardous waste oil treatment system body 3;

[0070] When the hazardous waste oil in the 100-ton oil tank 302 leaks, it can be collected through the leak-proof tank 6, and the hazardous waste oil in the leak-proof tank 6 is pumped into the 50-ton oil tank 304 by an oil pump;

[0071] When the transportation vehicle 2 transports excess hazardous waste oil, the excess hazardous waste oil is sent to the temporary storage warehouse for temporary storage.

[0072] The present invention adopts a number of 100-ton and 50-ton oil tanks to improve the storage capacity and storage efficiency of hazardous waste oil; through cameras, data transmission modules and APP mobile terminals, the oil product status is monitored in real time to improve the recovery rate; by opening a leak-proof tank 6 at the bottom of the oil tank, the leak-proof performance is improved; by laying rock wool composite boards on the top of the oil tank, inside the leak-proof tank 6 and on the top of the temporary storage warehouse, the rock wool composite board contains biomass-modified XDK-CS and has excellent flame retardant and isolation effects, which can effectively prevent the oil tank from catching fire and burning and improve the fire prevention performance.

[0073] The embodiments described above are only used to describe the preferred embodiments of the present invention and do not limit the scope of the present invention. Without departing from the principles and essence of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A thousand-ton transformer hazardous waste oil treatment system, characterized in that, It includes a thousand-ton hazardous waste oil treatment system body (3) and a ton-level distributed temporary storage depot, and the temporary storage depot is communicatively connected to the thousand-ton hazardous waste oil treatment system body (3) through an APP mobile terminal; The thousand-ton hazardous waste oil treatment system body (3) includes several bases, several oil tanks and a temporary storage vehicle (4) arranged on each of the bases; a magnetic turning column liquid level gauge (5) for indicating the actual height of the hazardous waste oil and an oil level sensor for detecting the liquid height are arranged in each oil tank, and rock wool composite boards containing the biomass-modified chitosan adsorbent XDK-CS are laid on the tops of each oil tank and the top of the temporary storage depot; The base includes a first base (301) and a second base (303), and the oil tanks include a 100-ton oil tank (302) arranged on the first base (301) and a 50-ton oil tank (304) arranged on the second base (303); leakage prevention grooves (6) are opened below the first base (301) and the second base (303), the leakage prevention grooves (6) are communicated through a leakage prevention channel (7), the leakage prevention channel (7) is filled with the biomass-modified chitosan adsorbent XDK-CS, and a pipeline is arranged between the bottom of each 50-ton oil tank (304) and the leakage prevention channel (7), and an oil pump is arranged on the pipeline.

2. The thousand-ton transformer hazardous waste oil treatment system according to claim 1, wherein A temporary storage tank for temporarily storing hazardous waste oil, a camera for collecting the situation in the temporary storage depot, and a data transmission module for transmitting the oil level and oil quantity information of the temporary storage tank in the temporary storage depot to a data processing center are arranged in the temporary storage depot.

3. The thousand-ton transformer hazardous waste oil treatment system according to claim 2, characterized in that, An oil collecting pool is arranged at the bottom of the temporary storage tank, the oil collecting pool is connected with a diversion ditch through a pipeline, the diversion ditch is arranged on the ground and close to the oil tank, and the diversion ditch is used for collecting the hazardous waste oil accidentally leaked during the temporary storage process and enabling the hazardous waste oil to flow into the oil collecting pool through the pipeline.

4. A thousand-ton transformer hazardous waste oil treatment system according to claim 2, characterized in that, The data transmission module adopts a GPRSDTU, and its connection process with the data processing center: a SIM card with GPRS function enabled is placed in a wireless terminal DTU, after the DTU is powered on, it first registers to the GPRS network, and then establishes a connection with the data processing center through the GPRS network.

5. A thousand-ton transformer hazardous waste oil treatment system according to claim 1, characterized in that, The APP mobile terminal is arranged in the temporary storage depot, and it includes a main permission, a first-level permission, a second-level permission, and a third-level permission, wherein the main permission is the highest permission, and the third-level permission is only a viewable permission; All member permissions can be adjusted by the general permission administrator at any time; the general permission administrator can classify and stratify all member permissions in the jurisdiction area, set alarm reminders and alarm values.

6. The thousand-ton transformer hazardous waste oil treatment system according to claim 1, characterized in that, The oil pump adopts a micro vortex pump, and its parameters are: rotation speed 2800r / min, suction lift 6m, head 20m, and electric power 125W.

7. A thousand-ton transformer hazardous waste oil treatment system according to claim 1, characterized in that, The preparation process of the biomass-modified chitosan adsorbent XDK-CS is as follows: (1) Take a chitosan gel solution, add a silicon-aluminum gel, start stirring and slowly drop a NaOH solution with a concentration of 2mol during the stirring process, and a mixed solution is obtained after stirring for 0.5h; wherein, the mass-volume ratio of the silicon-aluminum gel to the chitosan gel solution is 9:100; (2) Stir the mixture in a water bath at a constant temperature of 70 °C for 2 h to slowly mineralize the chitosan gel solution on the surface of the silica-alumina gel, forming a chitosan gel. (3) Adjust the pH of the chitosan gel to neutral, then age it for 24 h, and obtain the chitosan adsorbent XDK-CS after drying. (4) Package the chitosan adsorbent XDK-CS with a nylon cloth packaging bag to obtain the first chitosan adsorbent XDK-CS. (5) Mix 2 g of bisphenol epoxy resin (E-44) with 1 g of modified aliphatic amine curing agent, and then add them to 50 g of ethanol solution and stir for 10 min. (6) Add hydrophobic fused silica (PDMS–SiO2) nanoparticles with different weight fractions respectively, and continue to stir for 30 minutes until a uniform silicone solution is formed. (7) Immerse the first chitosan adsorbent XDK-CS in the silicone solution, take it out with tweezers after soaking for 10 min. (8) Cure the first chitosan adsorbent XDK-CS with a silicone solution on its surface at 90 °C for 2 h to obtain a biomass-modified chitosan adsorbent XDK-CS with a stable superhydrophobic film, large specific surface area and pore radius.

8. A thousand-ton transformer hazardous waste oil treatment system according to claim 7, characterized in that, The water contact angle of the biomass-modified chitosan adsorbent XDK-CS is 136.1°.

9. The application of a thousand-ton transformer hazardous waste oil treatment system according to any one of claims 1 to 8, characterized in that, It includes the following specific steps: Collect the transformer hazardous waste oil into the transport vehicle (2) through the waste oil recovery device (1); The transport vehicle (2) sends the hazardous waste oil to the 100-ton oil tank (302) or the 50-ton oil tank (304) in the thousand-ton hazardous waste oil treatment system body (3); When the hazardous waste oil in the 100-ton oil tank (302) leaks, it can be collected through the leak-proof tank (6), and the hazardous waste oil in the leak-proof tank (6) is pumped into the 50-ton oil tank (304); When the transport vehicle (2) transports excess hazardous waste oil, the excess hazardous waste oil is sent to the temporary storage warehouse for temporary storage.

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