Glass fiber reinforced plastic copper-rich liquid oil separation tank and circulation method of aviation kerosene in copper-rich liquid

Abstract

The invention discloses a glass fiber reinforced plastic copper-rich liquid oil separation tank and a circulation method of aviation kerosene in copper-rich liquid, relates to the technical field of oil separation tanks, is used for oil-water separation of copper-rich liquid in mining wet electrolytic copper production, and solves the problems that an original oil separation tank is insufficient in oil separation capacity, needs manual treatment, is unstable in electrolytic copper quality and causes acid mist pollution. A water inlet and a water outlet are formed in the two ends of the tank body, a plurality of oil separation modules (including oil separation plates and water separation plates with through holes in the bottoms) are arranged in the middle of the tank body, and the front sides of the oil separation plates are connected with oil collection boxes; the bottom of the tank body is provided with a blind ditch, and the inner side wall of the tank body is provided with an opening and an outer oil discharge groove; an air pumping system is additionally arranged; and a cover plate is arranged at the top of the tank body. The oil separation tank realizes multi-stage oil separation and automatic recovery of oil stains, improves the oil separation efficiency, and eliminates manual intervention.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of oil separation tanks, in particular to a glass fiber reinforced plastic copper-rich liquid oil separation tank and a recycling method of aviation kerosene in the copper-rich liquid. BACKGROUND

[0002] In the field of mining industry wet electrolytic copper production, "extraction-reverse extraction-electrodeposition" is the core process link for realizing the conversion of low-concentration copper-containing raw materials into high-purity cathode copper, and the extraction and reverse extraction steps are the key steps for determining the copper ion extraction efficiency and the quality of subsequent products. Taking the first phase engineering construction project of Gold Mountain Mining Co., Ltd. of Luoyang Molybdenum Industry in Congo (DRC) as an example, the design annual production capacity of the first extraction section and the second extraction section is 150,000 tons of wet electrolytic cathode copper. The production process of the project completely relies on the above core process: first, the low-concentration copper-containing leaching solution is obtained by leaching treatment of copper-containing ores, and the leaching solution enters the extraction section. With kerosene as the core extractant, copper ions are transferred from the aqueous phase (leaching solution) to the oil phase (kerosene) through liquid-liquid contact, thereby completing the preliminary enrichment of copper ions. Subsequently, the kerosene loaded with copper ions enters the reverse extraction section, and under the action of the reverse extraction agent, the copper ions are washed out into the aqueous phase to form a high-concentration "copper-rich liquid". The copper-rich liquid is directly used as the raw material for producing cathode copper in the subsequent electrodeposition workshop, and the purity directly determines the quality and production stability of the electrolytic copper product.

[0003] However, in actual production, the reverse extraction section cannot achieve absolute separation of kerosene and copper-rich liquid, resulting in a certain amount of kerosene (i.e. oil phase impurities) remaining in the copper-rich liquid after reverse extraction. The presence of these residual kerosenes has multiple negative effects on subsequent production steps, and the copper-rich liquid oil separation tank (specification: 2x24000x5000x2500mm) configured in the original design scheme cannot effectively solve the problem of oil carrying in the copper-rich liquid due to the failure of the oil separation capacity to achieve the expected effect, further exacerbating the production pain points:

[0004] 1. Unstable quality of electrolytic copper: the residual kerosene will adhere to the surface of the cathode plate in the electrolytic tank when the copper-rich liquid is transported to the electrodeposition workshop, which will hinder the directional deposition of copper ions on the cathode, cause defects such as pinholes and interlayers on the surface of the cathode copper, and destroy the uniformity of copper layer deposition, resulting in fluctuations in the purity of electrolytic copper and extremely unstable quality, which is difficult to meet the production requirements of high-quality cathode copper.

[0005] 2. Serious acid mist pollution: the kerosene mixed in the copper-rich liquid will decompose and produce a large amount of pungent acid mist under the combined action of electric current and high temperature environment in the electrolytic tank during the electrodeposition process. These acid mists not only cause a poor operating environment in the electrodeposition workshop, which greatly exceeds the operating tolerance of the operating workers, but also cause corrosion to the equipment in the workshop and environmental pollution when discharged to the outside, which does not meet the environmental protection production requirements.

[0006] 3. It needs to rely on manual processing, high cost and low efficiency: due to the original oil separation tank cannot realize the automatic separation and recovery of oil stains, in order to avoid the influence of high oil content in copper-rich liquid on production, it is necessary to arrange the operator to clean the oil stains in the oil separation tank frequently. This method not only increases the labor intensity of the operator, but also produces additional labor cost; more importantly, manual cleaning is not timely, which easily leads to the accumulation of oil stains in the tank, further reduces the oil separation effect, and forms a vicious cycle of "oil stain accumulation - cleaning lag - oil content exceeding standard".

[0007] In view of the above production problems caused by the residual kerosene in the copper-rich liquid after extraction and stripping and the insufficient treatment capacity of the original oil separation tank, the production technology department of Congo (DRC) Luoyang Molybdenum Industry Jinshan Mining Co., Ltd. reported to the group company after research and obtained the consent of the group company, and planned to add one oil separation tank (specification: 2x37500x7500x2500mm) in each of the extraction and stripping sections to realize the efficient and automatic separation of copper-rich liquid and residual kerosene, completely replace the manual processing link in the original scheme, eliminate acid mist pollution, stabilize the quality of electrolytic copper, and at the same time reduce the production cost and the labor intensity of the operator. Based on this demand, it is urgent to develop a new type of oil separation tank equipment which is suitable for the process chain of "extraction - stripping - electrodeposition" and can efficiently treat the oil stains in the copper-rich liquid. SUMMARY

[0008] The purpose of the present application is to provide a glass steel copper-rich liquid oil separation tank and a method for recycling aviation kerosene in copper-rich liquid to solve the problems raised in the above background.

[0009] To achieve the above purpose, the present application provides the following technical scheme: a glass steel copper-rich liquid oil separation tank, comprising a tank body, a water inlet and a drain are arranged at both ends of the tank body respectively, a plurality of oil separation modules are arranged in the middle of the tank body, the oil separation modules divide the inside of the tank body into a plurality of cavities which are interconnected, the oil separation module comprises an oil separation plate and a water separation plate, a through hole is formed in the bottom of the water separation plate, water flows through the gap between the oil separation plate and the water separation plate through the through hole, an oil collecting box is fixed to the front side of the oil separation plate, the oil collecting box is flush with the top end of the water separation plate, an oil collecting box outlet pipe is connected to the bottom of the oil collecting box, the oil collecting box outlet pipe is communicated with a hidden ditch arranged at the bottom of the tank body, a plurality of openings are arranged on the inner side wall of the tank body for discharging floating oil, an oil discharge groove is arranged outside the opening, and the oil discharge groove and the hidden ditch are jointly connected to an oil collecting transfer tank beside the tank body.

[0010] Preferably, the hidden ditch is located at the middle position of the U-shaped tank body, a hidden ditch oil discharge port is arranged at the end of the hidden ditch, and the hidden ditch oil discharge port is connected to the oil collecting transfer tank through a connecting oil pipe.

[0011] Preferably, the opening is arranged at the position close to the oil separation plate on the front side of the oil separation plate, a liquid level adjusting plate is arranged at the middle position of the oil discharge groove, an oil discharge pipe is connected to the side of the oil discharge groove away from the opening, and the oil discharge pipe is communicated with the oil collecting transfer tank.

[0012] Preferably, a plurality of oil pumping pumps are installed on the outer side of the oil collecting and transferring tank, and are used to pump the oil in the oil collecting and transferring tank to the flow guide groove of the stripping stage clarifying chamber through the oil pumping pumps, and mix with the liquid from the mixing chamber.

[0013] Preferably, a gas pumping system is arranged in the chamber behind the first oil separation plate, and is used to deliver gas to the bottom of the chamber.

[0014] Preferably, a reinforcing rib is arranged in the inner cavity of the groove body, and the reinforcing rib strengthens the structural strength of the groove body and does not hinder the liquid passing through.

[0015] Preferably, an oil-water separation plate support is arranged between the oil separation plate and the water separation plate, and an upper oil collecting box support and a lower oil collecting box support are connected between the oil collecting box and the water separation plate, and are respectively used to fix the upper end and the lower end of the oil collecting box.

[0016] Preferably, a cover plate is installed on the top of the groove body, and a part of the cover plate is movable, and can be conveniently opened.

[0017] The application also provides a method for recycling aviation kerosene, and specifically comprises the following steps:

[0018] S1 extraction and stripping: low-concentration copper-containing leaching solution is obtained by leaching treatment of copper-containing ores, the leaching solution enters an extraction section, aviation kerosene is used as a core extractant, and copper ions are transferred from the water phase to the oil phase through liquid-liquid contact, so that the preliminary enrichment of the copper ions is completed, then the kerosene loaded with the copper ions enters a stripping section, under the action of a stripping agent, the copper ions are eluted to the water phase again, and high-concentration "copper-rich liquid" is formed, and the copper-rich liquid is directly used as a raw material for producing cathode copper in an electrodeposition workshop;

[0019] S2 collection of mixed kerosene in the copper-rich liquid: the oil liquid separated from the oil separation groove and mainly composed of kerosene is collected through the connection oil pipe and the oil discharge pipe;

[0020] S3 pumping of the oil liquid: when the liquid level of the oil liquid containing kerosene in the oil collecting and transferring tank reaches a preset height, the oil pumping pump installed on the outer side of the oil collecting and transferring tank is started, the oil liquid containing kerosene in the oil collecting and transferring tank is pumped through the oil inlet pipe of the oil pumping pump, and then the oil liquid containing kerosene is delivered to the flow guide groove of the stripping stage clarifying chamber in the production of copper by the wet process in the mining industry through the oil outlet pipe of the oil pumping pump;

[0021] S4 recycling: the oil liquid containing kerosene delivered to the flow guide groove of the stripping stage clarifying chamber is mixed with the liquid to be treated discharged from the mixing chamber of the extraction section, then the kerosene returns to the extraction section after the stripping, and the closed-loop recycling of the kerosene in the extraction section is realized.

[0022] Compared with the prior art, the application has the following beneficial effects:

[0023] 1. The present invention designs a fully automatic oil collection system consisting of an oil collecting box, a culvert, an oil drain trough and an oil collection transfer tank: the floating oil phase can be introduced into the culvert through the oil collecting box, or flow into the oil drain trough through the opening of the trough body (the oil separator is provided with three oil drain devices, under normal working conditions, the DN150 oil drain channel is used, and when there is too much floating oil in the trough body, the DN200 oil drain channel is opened to remove the floating oil in the trough), and finally flows into the oil collection transfer tank through the connecting oil pipe and the oil drain pipe, and then is pumped back to the extraction tank for recycling by the oil pump.

[0024] The entire process does not require manual cleaning of oil stains, completely replacing the manual processing steps in the original plan. It not only reduces the labor intensity of operators, but also saves labor costs and avoids the problem of oil stain accumulation caused by untimely manual operation.

[0025] 2. The present invention constructs a multi-stage oil separation system through the combined design of "multi-channel oil separation module and pump air system": multiple oil separation plates and water separation plates form independent chambers, forcing the copper-rich liquid to flow slowly through the gaps, and utilizing the density difference between oil and water to achieve basic stratification; the pump air system of the chamber generates tiny bubbles through aeration, which can carry tiny oil droplets and accelerate floating. Compared with the original oil separator, the oil separation efficiency is improved, and ultimately the oil content of the treated copper-rich liquid is reduced.

[0026] After the low-oil-content copper-rich liquid is transported to the electrolytic workshop, the interference of oil pollution on the electrolytic process is avoided, effectively solving the problem of unstable electrolytic copper quality in the original plan, and significantly improving the quality of electrolytic copper products.

[0027] 3. The tank body and core components such as oil separators, water separators, and pipes are all made of fiberglass, which has excellent acid and corrosion resistance and can adapt to the acidic environment of copper-rich liquid, avoiding the problem of easy corrosion and short life of original metal materials; at the same time, the reinforcing ribs in the inner cavity of the tank body and the supporting structures of each component (such as the support between the oil and water separators and the oil collecting box support) greatly enhance the overall structural strength of the equipment, prevent the tank body from deformation due to liquid impact or long-term use, and extend the service life of the equipment.

[0028] 4. The oil collected in the oil transfer pool is mainly kerosene. The present invention uses an oil pump to pump it back to the extraction section for recycling instead of directly discarding it. This not only reduces the amount and cost of hazardous waste treatment, but also reduces the amount of kerosene purchased in the extraction section, realizes resource recovery and reuse, and improves the economic benefits of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A top view of the tank body of the present invention;

[0030] Figure 2 for Figure 1 Cross-sectional view at C_C in the middle;

[0031] Figure 3 for Figure 2 Enlarged view of point B in the middle;

[0032] Figure 4 For Figure 1 longitudinal section view at A in the middle;

[0033] Figure 5 For oil collection transfer tank and tank body structure schematic diagram;

[0034] Figure 6 For tank body top cover plate structure schematic diagram.

[0035] In the figure: 1, tank; 2, water inlet; 3, drain; 4, oil separation plate; 5, water separation plate; 6, oil collection box; 7, reinforcing rib; 8, underdrain; 9, underdrain oil outlet; 10, upper support of oil collection box; 11, lower support of oil collection box; 12, oil collection box outlet pipe; 13, support between oil separation and water separation plates; 14, oil discharge tank; 15, opening; 16, liquid level adjusting plate; 17, oil discharge pipe; 18, pump gas system; 19, oil collection transfer tank; 20, oil pump; 21, connecting oil pipe; 22, cover plate. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0037] The disclosed glass steel copper-rich liquid oil separation tank mainly applies to the copper-rich liquid oil-water separation in the first extraction section and the second extraction section of KFM Gold Mine Co., Ltd. in Congo (Kinshasa) of Luoyang Molybdenum Industry, to solve the problems of insufficient oil separation capacity of the original oil separation tank, high cost of manual processing, unstable quality of electrolytic copper, and acid mist pollution. The specific structure and working process of the equipment are as follows:

[0038] 1. Overall structure and installation of tank

[0039] As Figure 1 the core component of the embodiment is the tank body 1, which is made of glass steel (corrosion-resistant, high strength, suitable for copper-rich liquid acidic environment), and the overall shape is U-shaped. The water inlet 2 and the drain 3 are respectively arranged at the two ends of the tank body 1: the water inlet 2 is connected with the copper-rich liquid conveying pipe of the extraction section, used for introducing the oil-containing copper-rich liquid to be treated; the drain 3 is connected with the feed pipe of the electrodeposition workshop, used for discharging the clean copper-rich liquid after oil separation.

[0040] The inner cavity of the tank body 1 is uniformly provided with multiple reinforcing ribs 7: the reinforcing ribs 7 are integrally formed by glass steel, and are arranged along the length direction of the tank body, which not only enhances the anti-deformation ability of the tank body 1, but also does not hinder the flow of liquid in the tank.

[0041] 2. Structure and assembly of oil separator module

[0042] like Figure 2 As shown, multiple oil separation modules are installed along the length of the tank body 1 (the specific number can be adjusted according to the oil content of the copper-rich liquid). Each oil separation module divides the interior of the tank body 1 into multiple interconnected chambers, achieving "multi-stage oil separation" and improving separation efficiency. Each oil separation module consists of the following components:

[0043] The oil separator 4 and the water separator 5 are installed vertically and in parallel. A circular through hole is provided at the bottom of the water separator 5 (to ensure smooth water flow). The water flows in from the through hole at the bottom of the water separator 5 and flows slowly along the gap between the oil separator 4 and the water separator 5, using the "oil-water density difference" to make the oil phase float and the water phase sink.

[0044] Support structure: The oil-water separator support 13 is fixed between the oil-water separator 4 and the water-water separator 5 to prevent the two plates from deforming due to liquid impact; the oil collecting box 6 is fixed on the front side of the oil-water separator 4 (in the direction of water flow), and the oil collecting box 6 is flush with the top of the water-water separator 5 (to ensure that the floating oil phase can naturally flow into the oil collecting box), and the upper and lower ends of the oil collecting box 6 are connected to the oil-water separator 4 through the oil collecting box upper support 10 and the oil collecting box lower support 11 respectively to ensure fixed stability.

[0045] 3. Composition and connection of oil collection system

[0046] This embodiment uses a multi-stage oil collection structure consisting of an oil collection box, a hidden ditch, an oil drain tank, and an oil collection transfer pool to automatically collect and drain oil pollution without manual intervention.

[0047] 3.1 Connection between oil collecting box and culvert

[0048] refer to Figure 2 The bottom of the oil collecting box 6 is connected to the oil collecting box outlet pipe 12, and the end of the outlet pipe 12 is connected to the dark groove 8 opened at the bottom of the tank body 1; the dark groove 8 is located in the middle of the U-shaped tank body 1, with a cross-sectional size of 500×500mm and a smooth interior to reduce oil residue.

[0049] A DN200mm culvert oil outlet 9 is set at each end of the culvert 8. The culvert oil outlet 9 is connected to the oil collection transfer tank 19 next to the tank body 1 through the connecting oil pipe 21. The oil collected in the culvert 8 flows into the oil collection transfer tank 19 by gravity.

[0050] 3.2 Connection between oil drain tank and oil collection transfer tank

[0051] like Figure 4 As shown, the inner wall of the tank body 1 is provided with an opening 15 (the height of which is flush with the top of the oil collecting box 6 ) near the front side of each oil separator 4 , and the outer side of the opening 15 is connected to the oil drain groove 14 ;

[0052] The middle of the oil drain groove 14 is installed with a liquid level adjusting plate 16 (the height can be adjusted by screw), which is used to control the liquid level in the oil drain groove - only the oil phase is allowed to pass over the adjusting plate to prevent the water phase from mixing in; the side of the oil drain groove 14 away from the opening 15 is connected with an oil drain pipe 17 (diameter 150mm), the end of which is communicated with an oil collection transfer tank 19 to realize another way of collecting oil stains. The oil separation groove is provided with three oil drain devices, and in the normal working state, the DN150 oil drain channel is used, and when the floating oil stains in the groove are too much, the DN200 oil drain channel is opened to remove the floating oil stains in the groove.

[0053] 3.3 Subsequent treatment of the oil collection transfer tank

[0054] The oil collection transfer tank 19 is installed with 2-3 oil pumps 20 outside, the oil inlet pipe of the oil pump 20 is inserted into the bottom of the oil collection transfer tank 19, and the oil outlet pipe is connected with the extraction tank, which can pump the collected oil stains (mainly kerosene) back to the extraction section for recycling, reducing the cost of consumables.

[0055] 4. Installation and function of the pump gas system

[0056] In the chamber behind the first water stop plate 5, a pump gas system 18 is installed, which includes an air compressor, an air pipe and an aeration head (uniformly arranged at the bottom of the chamber);

[0057] When working, the air compressor delivers compressed air to the bottom of the chamber through the air pipe, and the aeration head generates tiny bubbles; the tiny bubbles will carry the small oil droplets in the copper-rich liquid during the rising process, accelerating the oil phase to float to the liquid surface and improving the separation efficiency of the oil separation module for tiny oil droplets (compared with no pump gas structure, the oil separation efficiency is improved).

[0058] 5. Installation and function of the cover plate

[0059] As shown in Figure 6 , the top of the groove body 1 is fixed with a cover plate 22 by bolts, and the cover plate 22 is made of glass steel and is divided into fixed and movable types:

[0060] The fixed cover plate covers most of the area of the groove body 1, which is used to isolate dust from the outside and prevent the copper-rich liquid from volatilizing;

[0061] The movable cover plate is opened above the oil separation module and the manhole, which can be manually opened to facilitate daily inspection of the oil separation effect, cleaning of residual oil stains in the groove and maintenance of parts.

[0062] 6. Equipment working process

[0063] Formation of copper-rich liquid: Copper-containing ore is treated by leaching to obtain a low-concentration copper-containing leaching solution. After the leaching solution enters an extraction section, aviation kerosene is used as a core extractant, and copper ions are transferred from the aqueous phase to the oil phase through liquid-liquid contact, thereby achieving the preliminary enrichment of copper ions. Subsequently, the kerosene loaded with copper ions enters a stripping section, where the copper ions are re-eluted into the aqueous phase under the action of a stripping agent, forming a high-concentration "copper-rich liquid". The copper-rich liquid is used as a direct raw material for the production of cathode copper in an electrodeposition plant.

[0064] Introduction of copper-rich liquid: The oil-containing copper-rich liquid enters the first chamber of the U-shaped tank body 1 from the water inlet 2, and the flow rate is controlled at 0.5 m / s (to ensure that the oil and water are fully layered).

[0065] Multi-stage oil separation and oil phase collection:

[0066] The copper-rich liquid passes through the through hole at the bottom of the water baffle 5 and enters the gap between the oil baffle 4 and the water baffle 5. The oil phase floats to the liquid surface due to its small density and flows into the oil collection box 6, and then is discharged into the underground ditch 8 through the oil collection box discharge pipe 12.

[0067] Part of the oil phase that is not collected by the oil collection box 6 flows into the oil discharge groove 14 through the opening 15 in the side wall of the tank body, and is then guided into the oil collection transfer tank 19 through the oil discharge pipe 17 after being controlled by the liquid level adjusting plate 16.

[0068] The pump gas system 18 in the first chamber continuously aerates to accelerate the floating of small oil droplets and improve the separation effect.

[0069] Clean liquid discharge: The copper-rich liquid treated by multiple oil separation modules flows along the U-shaped tank body to the water outlet 3 and is transported to the electrodeposition plant for electrolytic copper production.

[0070] Oil and dirt recovery: When the oil and dirt in the oil collection transfer tank 19 reaches a certain liquid level, the oil pump 20 is started to pump the oil and dirt back to the stripping stage clarifier flow guide groove, where it is mixed with the liquid discharged from the extraction section mixing chamber. After stripping, the kerosene is returned to the extraction section, realizing closed-loop recycling of kerosene in the extraction section.

[0071] The oil separation tank of the present embodiment does not require manual intervention, has high oil separation efficiency, can effectively reduce the oil content of the copper-rich liquid and stabilize the quality of electrolytic copper, while avoiding acid mist pollution caused by kerosene evaporation and improving the operating work environment, fully meeting the production capacity demand of 150,000 tons / year of electrolytic copper.

[0072] Although embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and alterations can be made without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A glass fiber reinforced plastic copper-rich liquid oil separator, comprising a tank body (1), characterized in that: The tank body (1) is provided with a water inlet (2) and a water outlet (3) at both ends, and a plurality of oil separation modules are provided in the middle of the tank body (1). The oil separation modules divide the interior of the tank body (1) into a plurality of interconnected chambers. The oil separation modules include an oil separation plate (4) and a water separation plate (5). A through hole is provided at the bottom of the water separation plate (5). Water flows through the through hole through the gap between the oil separation plate (4) and the water separation plate (5). An oil collecting box (6) is fixed on the front side of the oil separation plate (4). The top of the oil collecting box (6) and the water separation plate (5) are flush. The bottom of the oil collecting box (6) is connected to the oil collecting box outlet pipe (12). The oil collecting box outlet pipe (12) is connected to the dark ditch (8) provided at the bottom of the tank body (1). The inner wall of the tank body (1) is provided with a plurality of openings (15) for discharging floating oil. An oil drain groove (14) is provided outside the opening (15). The oil drain groove (14) and the dark ditch (8) are connected to the oil collection transfer pool (19) next to the tank body (1).

2. The glass fiber reinforced plastic copper-rich liquid oil separator according to claim 1, characterized in that: The culvert (8) is located in the middle of the U-shaped trough body (1). An oil drain port (9) is provided at the end of the culvert (8) and is connected to the oil collection transfer tank (19) via an oil connecting pipe (21).

3. The glass fiber reinforced plastic copper-rich liquid oil separator according to claim 1, characterized in that: The opening (15) is provided on the front side of the oil separator (4) near the oil separator (4), a liquid level regulating plate (16) is provided in the middle of the oil drain groove (14), and the side of the oil drain groove (14) away from the opening (15) is connected to the oil drain pipe (17), and the oil drain pipe (17) is connected to the oil collection transfer tank (19).

4. The glass fiber reinforced plastic copper-rich liquid oil separator according to claim 1, characterized in that: A plurality of oil pumps (20) are installed outside the oil collection transfer tank (19) for pumping the oil in the oil collection transfer tank (19) to the guide trough of the stripping stage clarification chamber through the oil pumps (20) to mix with the liquid coming out of the mixing chamber.

5. The glass fiber reinforced plastic copper-rich liquid oil separator according to claim 1, characterized in that: A pumping system (18) is provided in the chamber behind the first oil separator (5) for delivering gas to the bottom of the chamber.

6. The glass fiber reinforced plastic copper-rich liquid oil separator according to claim 1, characterized in that: Reinforcing ribs (7) are provided in the inner cavity of the trough body (1), and the reinforcing ribs (7) strengthen the structural strength of the trough body (1) without hindering the passage of liquid.

7. The glass fiber reinforced plastic copper-rich liquid oil separator according to claim 1, characterized in that: An oil and water separation plate support (13) is provided between the oil separation plate (4) and the water separation plate (5), and an oil collection box upper support (10) and an oil collection box lower support (11) are connected between the oil collection box (6) and the water separation plate (4), and are used to fix the upper and lower ends of the oil collection box (6), respectively.

8. The glass fiber reinforced plastic copper-rich liquid oil separator according to claim 1, characterized in that: A cover plate (22) is installed on the top of the tank body (1), wherein a portion of the cover plate (22) is movable.

9. A method for realizing the circulation of aviation kerosene in copper-rich liquid by using the glass fiber reinforced plastic copper-rich liquid oil separator according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1 Extraction and Stripping: Copper-containing ore is leached to obtain a low-concentration copper-containing leachate. After the leachate enters the extraction section, aviation kerosene is used as the core extractant to achieve the transfer of copper ions from the aqueous phase to the oil phase through liquid-liquid contact, thereby completing the initial enrichment of copper ions. Subsequently, the kerosene loaded with copper ions enters the stripping section. Under the action of the stripping agent, the copper ions are re-eluted into the aqueous phase to form a high-concentration "copper-rich solution". The copper-rich solution serves as the direct raw material for producing cathode copper in the electrowinning workshop; S2 collects kerosene mixed in the copper-rich liquid: the oil in the oil transfer tank (19) is collected through the dark ditch (8) via the connecting oil pipe (21) and the oil drain tank (14) via the oil drain pipe (17), and the oil with kerosene as the main component separated from the oil separator tank is collected; S3 extracting oil: when the level of the kerosene oil in the oil collection transfer tank (19) reaches a preset height, start the oil pump (20) installed outside the oil collection transfer tank (19), extract the kerosene oil in the oil collection transfer tank (19) through the oil inlet pipe of the oil pump (20), and then transport the kerosene oil to the guide trough of the stripping stage clarification chamber of the mining wet electrolytic copper production through the oil outlet pipe of the oil pump (20); S4 recycling and reuse: The kerosene-containing liquid transported to the diversion trough of the stripping stage clarification chamber is fully mixed with the liquid to be treated discharged from the mixing chamber of the extraction section. After stripping, the kerosene is returned to the extraction section, realizing the closed-loop recycling of kerosene in the extraction section.

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