Waste liquid separation and recovery device for polyolefin catalyst production
By designing filtration and separation components, the problem of oil sludge separation in polyolefin catalyst production has been solved, achieving rapid oil-water separation and efficient waste liquid recovery, reducing production costs, resource waste, and environmental pollution.
Patent Information
- Application Number
- CN202421022259.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-13
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-05-13
AI Technical Summary
Existing waste liquid recovery devices for polyolefin catalyst production often fail to separate oil sludge through sedimentation, making it difficult to recycle wastewater and waste oil, resulting in low resource recovery rates and increased production costs.
The system employs a filtration and separation assembly, including a first filter and a second filter, to filter out oil sludge. The oil-water mixture is then transported to an oil-water separation tank for sedimentation and separation via an oil outlet pipe and an oil-water pipe. Waste oil is stored using a liquid oil pipe and a waste oil storage tank, while wastewater is transported to a filter press via a wastewater discharge pipe, thus achieving rapid oil-water separation and effective waste liquid recovery.
It achieves rapid separation of oil and water, reduces settling time, improves resource recovery rate, reduces production costs, reduces environmental pollution risks, and realizes efficient recycling of waste liquid.
Smart Images
Figure CN222324319U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of separation and recovery of waste liquid in catalyst production, in particular to a waste liquid separation and recovery device for polyolefin catalyst production. Background Art
[0002] During the production process of polyolefin catalysts, a certain amount of waste liquid will be discharged into the collection pool. The main components of the waste liquid discharged during the production process are: high boiling point (oil sludge), waste water and waste oil. When the liquid level in the collection pool exceeds 2 / 3, it is necessary to pump the waste liquid in the pool into ton barrels for storage. The ton barrels filled with waste liquid are temporarily stored in the hazardous waste warehouse as hazardous waste, and will be subsequently handled by units with relevant qualifications. A waste liquid separation and recovery device is required for separation and treatment. In the existing recovery device, the discharged waste liquid is usually separated and recovered by sedimentation during the production process. Since the oil sludge inside the waste liquid is difficult to separate by sedimentation, it is not convenient for waste water and waste oil to be recovered by filter press for reuse, resulting in a low resource recovery rate and increased production costs. Therefore, we propose a waste liquid separation and recovery device for polyolefin catalyst production to solve the above-mentioned problems. Utility Model Content
[0003] In order to overcome the existing recovery devices, the discharged waste liquid is usually separated and recovered by sedimentation. Since the sludge inside the waste liquid is difficult to separate by sedimentation, it is not convenient to recover the waste water and waste oil by filter pressing and reuse them, resulting in low resource recovery rate and increased production costs.
[0004] The technical solution of the utility model is: a waste liquid separation and recovery device for polyolefin catalyst production, comprising a collecting tank, a filtering component and a separating component; a filtering component for separating solid particles and sludge in the waste liquid for subsequent treatment and recovery is installed at the outer end of the collecting tank, and a separating component for separating oil and water in the waste liquid for recovery and treatment is installed on the outer side of the filtering component.
[0005] Preferably, the first filter and the second filter are used to filter out the oil sludge. When the oil-water mixture settles inside the tank, the filter has removed the solid particles and the oil sludge, which provides a good pre-treatment effect for the subsequent sedimentation treatment, making the sedimentation process smoother, achieving rapid separation of oil and water, and reducing the sedimentation time. The oil outlet pipe and the oil-water pipe are used to transmit the oil-water mixture filtered out from the two sets of filters to the oil-water separation tank for sedimentation and separation. The dedicated oil outlet pipe and the oil-water pipe effectively realize the stable transmission of the oil-water mixture, so that the oil can be recycled and the water can be processed, which reduces the waste of resources, reduces the pollution of oil pollutants to the environment, and reduces the cost of the entire production process. The separated waste oil is transferred to the waste oil storage tank for storage, which effectively prevents leakage of waste oil during transmission and reduces the risk of environmental pollution. At the same time, the waste oil storage tank can adapt to the storage needs of different types and quantities of waste oil. The waste oil level gauge is used to detect and monitor the status of the waste oil to ensure the storage and management of the waste oil. The stored waste oil is transferred to the distillation recovery device through the waste oil transfer pump to further increase the useful substances in the waste oil and realize the reasonable recycling of the waste oil. The separated water in the wastewater storage tank is transferred to the inside of the filter press through the wastewater pipe, which effectively separates the solid matter in the wastewater, reduces the waste of resources, realizes the secondary utilization of wastewater, and reduces the production cost of the entire production process.
[0006] Preferably, the filtering assembly includes a discharge pipe, a discharge conveying pump, a transmission pipe, a delivery pipe, a first filter and a second filter. A discharge conveying pump is provided on the outside of the collecting tank, a discharge pipe is provided between the discharge conveying pump and the collecting tank, a first filter is provided on one side of the discharge conveying pump, a transmission pipe is provided between the first filter and the discharge conveying pump, a delivery pipe is provided at the outer end of the transmission pipe, and a second filter is provided at one end of the delivery pipe. The sludge is filtered out by using the first filter and the second filter. When the oil-water mixture settles inside the tank body, the filter has removed solid particles and sludge, providing a good pre-treatment effect for subsequent sedimentation treatment, making the sedimentation process smoother, realizing rapid separation of oil and water, reducing sedimentation time, and improving the efficiency of the entire treatment process.
[0007] Preferably, the separation component includes an oil-water separation tank, an oil-water pipe, an oil outlet pipe, an oil-water level gauge, a water outlet pipe, an electromagnetic valve, a water valve, a wastewater storage tank, a wastewater level gauge, a wastewater pipe, a wastewater valve, a liquid oil pipe, a waste oil storage tank, a waste oil tank valve, a waste oil level gauge, a waste oil discharge pipe, a waste oil pipe valve, a waste oil delivery pump, a filter press, a filter press valve, a filtered water discharge pipe, a filtered water pipe valve, a clean water recovery tank and a clean water delivery pump. The oil-water separation tank is located on the outside of the first filter, and an oil-water pipe is provided at the upper end of the oil-water separation tank. The first filter is connected to the second filter through an oil-water pipe, and an oil outlet pipe is provided at the lower end of the first filter. The first filter is connected to the oil-water pipe through the oil outlet pipe. The oil-water mixture filtered out from the two groups of filters is transmitted to the oil-water separation tank for sedimentation and separation by using the oil outlet pipe and the oil-water pipe. The dedicated oil outlet pipe and the oil-water pipe effectively realize the stable transmission of the oil-water mixture, so that the oil can be recycled and the water can be processed, which reduces the waste of resources, reduces the pollution of the environment by oil pollutants, and reduces the cost of the entire production process.
[0008] Preferably, an oil-water level gauge is provided on the outer wall of the oil-water separation tank, an outlet pipe is provided at the lower end of the oil-water separation tank, an electromagnetic valve is provided at the outer end of the outlet pipe, a water valve is provided below the electromagnetic valve, a wastewater storage tank is provided at one end of the outlet pipe, and a liquid oil pipe is provided at the outer end of the outlet pipe. The liquid level inside the oil-water separation tank is monitored by using an oil-water level gauge. According to the change of the liquid level, the flow rates of the oil outlet pipe and the oil-water pipe can be adjusted in time to maintain the best effect of oil-water separation, prevent the overflow or shortage of liquid inside the oil-water separation tank, avoid equipment failure and production interruption, ensure the stable operation of the waste liquid treatment process, control the discharge of oil and water after sedimentation by the electromagnetic valve, and accurately control the oil and water discharge rate after sedimentation according to the change of the liquid level in the sedimentation tank to meet different production needs, reduce energy consumption, effectively prevent oil and water overflow, and make the equipment operate stably for a long time.
[0009] Preferably, a waste oil storage tank is provided at one end of the liquid oil pipe, a waste oil tank valve is provided at the outer end of the liquid oil pipe close to the waste oil storage tank, a waste oil level gauge is provided on the outer wall of the waste oil storage tank, a waste oil delivery pump is provided below the waste oil storage tank, a waste oil discharge pipe is provided between the waste oil delivery pump and the waste oil storage tank, and a waste oil pipe valve is provided at the outer end of the waste oil discharge pipe. The separated waste oil is transferred to the waste oil storage tank for storage by using the liquid oil pipe, which effectively prevents leakage of the waste oil during transmission and reduces the risk of environmental pollution. At the same time, the waste oil storage tank can adapt to different types and quantities of waste oil storage needs. The waste oil level gauge is used to detect and monitor the state of the waste oil to ensure the storage and management of the waste oil. The stored waste oil is transferred to the distillation recovery device by the waste oil delivery pump, which further increases the useful substances in the waste oil and realizes the reasonable recycling of the waste oil.
[0010] Preferably, a wastewater level gauge is provided on the outer wall of the wastewater storage tank, a wastewater pipe is provided at the lower end of the wastewater storage tank, a wastewater valve is provided on the side of the wastewater pipe close to the wastewater storage tank, a filter press is provided at one end of the wastewater pipe, and a filter press valve is installed on the outer end of the wastewater pipe close to the filter press. The separated water in the wastewater storage tank is transmitted to the inside of the filter press by using a wastewater discharge pipe, so as to effectively separate the solid matter in the wastewater, reduce the waste of resources, realize the secondary utilization of wastewater, and reduce the production cost of the entire production process.
[0011] Preferably, a water filter pipe is provided at the lower end of the filter press, a water filter pipe valve is provided at the outer end of the water filter pipe, a clean water recovery tank is provided at the lower end of the water filter pipe, and a clean water delivery pump is provided at the lower end of the clean water recovery tank. By using the water filter pipe to discharge the treated clean water into the clean water collection tank for on-site use, the use of purified water is reduced, water resources are saved, and the recycling of water resources is facilitated.
[0012] Beneficial effects of the utility model:
[0013] 1. Compared with the traditional waste liquid recovery device, the first filter and the second filter are used to filter out the sludge. When the oil-water mixture settles inside the tank, the filter has removed the solid particles and sludge, providing a good pre-treatment effect for the subsequent sedimentation treatment, making the sedimentation process smoother, realizing the rapid separation of oil and water, and reducing the sedimentation time. The oil outlet pipe and the oil-water pipe are used to transfer the oil-water mixture filtered out from the two sets of filters to the oil-water separation tank for sedimentation and separation. The dedicated oil outlet pipe and the oil-water pipe effectively realize the stable transmission of the oil-water mixture, so that the oil can be recycled and the water can be treated, reducing the waste of resources, reducing the pollution of oil pollutants to the environment, and reducing the cost of the entire production process.
[0014] 2. The separated waste oil is transferred to the waste oil storage tank through the liquid oil pipe for storage, which effectively prevents leakage of waste oil during transmission and reduces the risk of environmental pollution. At the same time, the waste oil storage tank can adapt to the storage needs of different types and quantities of waste oil. The waste oil level gauge is used to detect and monitor the status of the waste oil to ensure the storage and management of the waste oil. The stored waste oil is transferred to the distillation recovery device through the waste oil transfer pump to further increase the useful substances in the waste oil and realize the reasonable recycling of the waste oil. The separated water in the wastewater storage tank is transferred to the inside of the filter press through the wastewater pipe, which effectively separates the solid matter in the wastewater, reduces the waste of resources, realizes the secondary utilization of wastewater, and reduces the production cost of the entire production process. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0016] Figure 2 This is a schematic diagram of the structure of the filter assembly of the utility model;
[0017] Figure 3 This is a schematic diagram of the separation component structure of the utility model;
[0018] Figure 4 This is a schematic diagram of the internal structure of the filter of the present utility model.
[0019] Description of reference numerals: 1. Collection tank; 2. Filter assembly; 201. Discharge pipe; 202. Discharge delivery pump; 203. Transmission pipe; 204. Delivery pipe; 205. First filter; 206. Second filter; 3. Separation assembly; 301. Oil-water separation tank; 302. Oil-water pipe; 303. Oil outlet pipe; 304. Oil-water level gauge; 305. Water outlet pipe; 306. Solenoid valve; 307. Water valve; 308. Wastewater storage Tank; 309, wastewater level gauge; 310, wastewater pipe; 311, wastewater valve; 312, liquid oil pipe; 313, waste oil storage tank; 314, waste oil tank valve; 315, waste oil level gauge; 316, waste oil discharge pipe; 317, waste oil pipe valve; 318, waste oil delivery pump; 319, filter press; 320, filter press valve; 321, filtered water discharge pipe; 322, filtered water pipe valve; 323, clean water recovery tank; 324, clean water delivery pump. DETAILED DESCRIPTION
[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0021] See also Figure 1-4 The utility model provides an embodiment: a waste liquid separation and recovery device for polyolefin catalyst production, comprising a collecting pool 1, a filtering component 2 and a separating component 3; the outer end of the collecting pool 1 is equipped with a filtering component 2 for separating solid particles and sludge in the waste liquid for subsequent treatment and recovery, and the outer side of the filtering component 2 is equipped with a separating component 3 for separating oil and water in the waste liquid for recycling.
[0022] See also Figure 1-2In this embodiment, the filter assembly 2 includes a discharge pipe 201, a discharge delivery pump 202, a transmission pipe 203, a delivery pipe 204, a first filter 205 and a second filter 206. The discharge delivery pump 202 is provided on the outside of the collection tank 1, the discharge pipe 201 is provided between the discharge delivery pump 202 and the collection tank 1, a first filter 205 is provided on one side of the discharge delivery pump 202, a transmission pipe 203 is provided between the first filter 205 and the discharge delivery pump 202, a delivery pipe 204 is provided on the outer end of the delivery pipe 203, and a second filter 206 is provided at one end of the delivery pipe 204. By using the first filter 205 and the second filter 206 to filter out the sludge, when the oil-water mixture settles inside the tank, the filter has removed the solid particles and sludge, providing a good pre-treatment effect for the subsequent sedimentation treatment, making the sedimentation process smoother, achieving rapid separation of oil and water, reducing the sedimentation time, and improving the efficiency of the entire treatment process. The separation component 3 includes an oil-water separation tank 301, an oil-water pipe 302, an oil outlet pipe 303, an oil-water level gauge 304, a water outlet pipe 305, an electromagnetic valve 306, a water valve 307, a wastewater storage tank 308, and a wastewater level gauge 309. The oil-water separation tank 301 is located outside the first filter 205, and an oil-water pipe 302 is provided at the upper end of the oil-water separation tank 301. The oil-water separation tank 301 is connected to the second filter 205 through the oil-water pipe 302. 206 is connected, and an oil outlet pipe 303 is provided at the lower end of the first filter 205. The first filter 205 is connected to the oil-water pipe 302 through the oil outlet pipe 303. The oil-water mixture filtered out from the two groups of filters is transmitted to the oil-water separation tank 301 for sedimentation separation by adopting the oil outlet pipe 303 and the oil-water pipe 302. The dedicated oil outlet pipe 303 and the oil-water pipe 302 effectively realize the stable transmission of the oil-water mixture, so that the oil can be recycled and the water can be processed, thereby reducing the waste of resources, reducing the pollution of the environment by oil pollutants, and reducing the cost of the entire production process.
[0023] See also Figure 1-3In this embodiment, an oil-water level gauge 304 is provided on the outer wall of the oil-water separation tank 301, a water outlet pipe 305 is provided at the lower end of the oil-water separation tank 301, a solenoid valve 306 is provided at the outer end of the water outlet pipe 305, a water valve 307 is provided below the solenoid valve 306, a wastewater storage tank 308 is provided at one end of the water outlet pipe 305, and a liquid oil pipe 312 is provided at the outer end of the water outlet pipe 305. The oil-water level gauge 304 is used to monitor the liquid level of the liquid inside the oil-water separation tank 301. According to the change of the liquid level, the flow of the oil outlet pipe 303 and the oil-water pipe 302 can be adjusted in time to maintain the best effect of oil-water separation, prevent the overflow or shortage of the liquid inside the oil-water separation tank 301, avoid equipment failure and production interruption, ensure the stable operation of the waste liquid treatment process, and control the discharge of oil and water after sedimentation through the solenoid valve 306. According to the change of the liquid level in the sedimentation tank, the discharge rate of oil and water after sedimentation is accurately controlled to meet different production needs, reduce energy consumption, and effectively prevent oil and water overflow. The equipment operates stably for a long time. A waste oil storage tank 313 is provided at one end of the liquid oil pipe 312. A waste oil tank valve 314 is provided at the outer end of the liquid oil pipe 312 near the waste oil storage tank 313. A waste oil level gauge 315 is provided on the outer wall of the waste oil storage tank 313. A waste oil delivery pump 318 is provided below the waste oil storage tank 313. A waste oil discharge pipe 316 is provided between the waste oil delivery pump 318 and the waste oil storage tank 313. A waste oil pipe valve 317 is provided at the outer end of the waste oil discharge pipe 316. The waste oil is transferred to the waste oil storage tank 313 for storage, which effectively prevents leakage of the waste oil during transmission and reduces the risk of environmental pollution. At the same time, the waste oil storage tank 313 can adapt to the storage needs of different types and quantities of waste oil. The waste oil level meter 315 is used to detect and monitor the state of the waste oil to ensure the storage and management of the waste oil. The stored waste oil is transported to the distillation recovery device through the waste oil transfer pump 318, which further increases the useful substances in the waste oil and realizes the reasonable recycling of the waste oil.
[0024] See also Figure 2-4In this embodiment, a wastewater level gauge 309 is provided on the outer wall of the wastewater storage tank 308, a wastewater pipe 310 is provided at the lower end of the wastewater storage tank 308, a wastewater valve 311 is provided on the side of the wastewater pipe 310 close to the wastewater storage tank 308, a filter press 319 is provided at one end of the wastewater pipe 310, and a filter press valve 320 is installed at the outer end of the wastewater pipe 310 close to the filter press 319. By adopting a wastewater discharge pipe to transmit the separated water in the wastewater storage tank 308 to the inside of the filter press 319, the solid matter in the wastewater is effectively separated, reducing Less waste of resources, realizing the secondary utilization of waste water, and reducing the production cost of the entire production process, a water filter pipe 321 is provided at the lower end of the filter press 319, a water filter pipe valve 322 is provided at the outer end of the water filter pipe 321, a clean water recovery tank 323 is provided at the lower end of the water filter pipe 321, and a clean water delivery pump 324 is provided at the lower end of the clean water recovery tank 323. The treated clean water is discharged into the clean water collection tank 1 as on-site water by using the water filter pipe 321, thereby reducing the use of pure water, saving water resources, and facilitating the recycling of water resources.
[0025] When working, firstly, the waste liquid in the collection tank 1 is transferred to the first filter 205 and the second filter 206 through the discharge pipe 201 combined with the discharge delivery pump 202 through the delivery pipe 203 and the delivery pipe 204 respectively, and the first filter 205 and the second filter 206 are used to filter out the sludge. When the oil-water mixture settles inside the tank, the filter has removed the solid particles and the sludge, providing a good pre-treatment effect for the subsequent sedimentation treatment. After the filter separates the waste sludge from the waste liquid, the two sets of filters are filtered out through the oil outlet pipe 303 and the oil-water pipe 302. The filtered oil-water mixture is transmitted to the oil-water separation tank 301 for sedimentation and separation. The dedicated oil outlet pipe 303 and oil-water pipe 302 effectively realize the stable transmission of the oil-water mixture, so that the oil can be recycled and the water can be processed, reducing the waste of resources. After the oil and water in the oil-water separation tank 301 are settled, the discharge of the settled oil and water is controlled by opening the electromagnetic valve 306. According to the change of the liquid level in the settling tank, the discharge rate of the settled oil and water is accurately controlled to meet different production needs. The water valve 307 is opened first to discharge the wastewater into the wastewater storage tank 308 for storage.
[0026] When the electromagnetic valve 306 senses that there is settled waste oil inside the outlet pipe 305, the water valve 307 is closed, and the separated waste oil is transferred to the waste oil storage tank 313 for storage by using the liquid oil pipe 312 to prevent leakage during the waste oil transmission process. At the same time, the waste oil storage tank 313 can adapt to the storage needs of different types and quantities of waste oil. The waste oil level meter 315 is used to detect and monitor the state of the waste oil to ensure the storage and management of the waste oil. Secondly, the stored waste oil is transferred to the distillation recovery device by the waste oil delivery pump 318 to further increase the useful substances in the waste oil and realize the reasonable recovery and utilization of the waste oil. The separated water in the wastewater storage tank 308 is transferred to the inside of the filter press 319 by using the wastewater discharge pipe to separate the solid matter in the wastewater to realize the secondary utilization of the wastewater. The filtered water discharge pipe 321 is opened to discharge the treated clean water into the clean water collection pool 1 as on-site water, reduce the use of pure water, and realize the recycling of water resources.
[0027] Through the above steps, the first filter 205 and the second filter 206 are used to filter out the sludge. When the oil-water mixture settles inside the tank, the filter has removed the solid particles and the sludge, providing a good pre-treatment effect for the subsequent sedimentation treatment, making the sedimentation process smoother, achieving rapid separation of oil and water, and reducing the sedimentation time. The oil outlet pipe 303 and the oil-water pipe 302 are used to transmit the oil-water mixture filtered out from the two groups of filters to the oil-water separation tank 301 for sedimentation and separation. The dedicated oil outlet pipe 303 and the oil-water pipe 302 effectively realize the stable transmission of the oil-water mixture, so that the oil can be recycled and the water can be processed, reducing the waste of resources, reducing the pollution of oil pollutants to the environment, and reducing the cost of the entire production process. The oil pipe 312 transfers the separated waste oil to the waste oil storage tank 313 for storage, which effectively prevents leakage of waste oil during transmission and reduces the risk of environmental pollution. At the same time, the waste oil storage tank 313 can adapt to the storage needs of different types and quantities of waste oil. The waste oil level meter 315 is used to detect and monitor the state of the waste oil to ensure the storage and management of the waste oil. The stored waste oil is transported to the distillation recovery device through the waste oil delivery pump 318 to further increase the useful substances in the waste oil and realize the reasonable recycling of the waste oil. The separated water in the wastewater storage tank 308 is transported to the inside of the filter press 319 through the wastewater discharge pipe, which effectively separates the solid matter in the wastewater, reduces the waste of resources, realizes the secondary utilization of wastewater, and reduces the production cost of the entire production process.
[0028] The above describes the implementation of the utility model in detail in conjunction with the accompanying drawings, but the utility model is not limited to the above implementation, and various changes can be made within the knowledge of those skilled in the art without departing from the purpose of the utility model.
Claims
1. A waste liquid separation and recovery device for polyolefin catalyst production, comprising a collection tank (1); characterized in that: The invention also comprises a filter assembly (2) and a separation assembly (3); the outer end of the collection tank (1) is provided with a filter assembly (2) for separating solid particles and oil sludge in the waste liquid for subsequent treatment and recovery; the outer side of the filter assembly (2) is provided with a separation assembly (3) for separating oil and water in the waste liquid for recovery and treatment; the filter assembly (2) comprises a discharge pipe (201), a discharge delivery pump (202), a transmission pipe (203), a delivery pipe (204), a first filter (205) and a second filter (206). A second filter (206), a discharge conveying pump (202) is provided on the outside of the collection tank (1), a discharge pipe (201) is provided between the discharge conveying pump (202) and the collection tank (1), a first filter (205) is provided on one side of the discharge conveying pump (202), a transmission pipe (203) is provided between the first filter (205) and the discharge conveying pump (202), a transmission pipe (204) is provided at the outer end of the transmission pipe (203), and a second filter (206) is provided at one end of the transmission pipe (204).
2. A waste liquid separation and recovery device for polyolefin catalyst production according to claim 1, characterized in that: The separation component (3) includes an oil-water separation tank (301), an oil-water pipe (302), an oil outlet pipe (303), an oil-water level gauge (304), a water outlet pipe (305), an electromagnetic valve (306), a water valve (307), a wastewater storage tank (308), a wastewater level gauge (309), a wastewater pipe (310), a wastewater valve (311), an oil pipe (312), a waste oil storage tank (313), a waste oil tank valve (314), a waste oil level gauge (315), a waste oil discharge pipe (316), a waste oil pipe valve (317), a waste oil delivery pump (318), a filter press (319), and a waste oil pump (319). ), a filter pressure valve (320), a filtered water discharge pipe (321), a filtered water pipe valve (322), a clean water recovery tank (323) and a clean water delivery pump (324); an oil-water separation tank (301) is located outside the first filter (205); an oil-water pipe (302) is provided at the upper end of the oil-water separation tank (301); the oil-water separation tank (301) is connected to the second filter (206) through the oil-water pipe (302); an oil outlet pipe (303) is provided at the lower end of the first filter (205); the first filter (205) is connected to the oil-water pipe (302) through the oil outlet pipe (303).
3. A waste liquid separation and recovery device for polyolefin catalyst production according to claim 2, characterized in that: An oil-water level gauge (304) is provided on the outer wall of the oil-water separation tank (301), a water outlet pipe (305) is provided at the lower end of the oil-water separation tank (301), an electromagnetic valve (306) is provided at the outer end of the water outlet pipe (305), a water valve (307) is provided below the electromagnetic valve (306), a wastewater storage tank (308) is provided at one end of the water outlet pipe (305), and a liquid oil pipe (312) is provided at the outer end of the water outlet pipe (305).
4. A waste liquid separation and recovery device for polyolefin catalyst production according to claim 3, characterized in that: A waste oil storage tank (313) is provided at one end of the liquid oil pipe (312), a waste oil tank valve (314) is provided at the outer end of the liquid oil pipe (312) close to the waste oil storage tank (313), a waste oil level gauge (315) is provided on the outer wall of the waste oil storage tank (313), a waste oil delivery pump (318) is provided below the waste oil storage tank (313), a waste oil discharge pipe (316) is provided between the waste oil delivery pump (318) and the waste oil storage tank (313), and a waste oil pipe valve (317) is provided at the outer end of the waste oil discharge pipe (316).
5. The waste liquid separation and recovery device for polyolefin catalyst production according to claim 3, characterized in that: A wastewater level gauge (309) is provided on the outer wall of the wastewater storage tank (308), a wastewater pipe (310) is provided at the lower end of the wastewater storage tank (308), a wastewater valve (311) is provided on the side of the wastewater pipe (310) close to the wastewater storage tank (308), a filter press (319) is provided at one end of the wastewater pipe (310), and a filter press valve (320) is installed on the outer end of the wastewater pipe (310) close to the filter press (319).
6. The waste liquid separation and recovery device for polyolefin catalyst production according to claim 5, characterized in that: A water filter pipe (321) is provided at the lower end of the filter press (319), a water filter pipe valve (322) is provided at the outer end of the water filter pipe (321), a clean water recovery tank (323) is provided at the lower end of the water filter pipe (321), and a clean water delivery pump (324) is provided at the lower end of the clean water recovery tank (323).