Oily sludge reduction skid-mounted equipment

Abstract

The utility model discloses oily sludge reduction skid-mounted equipment which comprises a pretreatment pry, a reduction pool, a screening and conveying device, an oil removing device, a chemical adding device, a dewatering pry, a dewatering centrifugal machine and a conveying pipe, the reduction pool is installed in the middle of the pretreatment pry, and the screening and conveying device is installed on the upper side of the reduction pool. The oil removing device is installed on the lower side of the screening and conveying device, the chemical adding device is installed on the rear side of the reduction pool, the dewatering pry is installed on the left side of the pretreatment pry, the dewatering centrifugal machine is installed in the middle of the dewatering pry, and the left end and the right end of the conveying pipe are connected with the dewatering centrifugal machine and the reduction pool respectively. According to the utility model, oil and water are effectively recycled during oil sludge treatment, and meanwhile, the outsourcing treatment cost of direct transfer is reduced.

Description

Technical Field

[0001] This utility model relates to the field of oil sludge treatment, and in particular to a skid-mounted device for reducing the volume of oily sludge. Background Technology

[0002] As the development time of oil fields extends, due to the joint development of multiple systems and the increase in oil and water well measures, the amount of oil sludge generated in the oil sludge pools, sewage pools and bottoms of the pools in various systems such as joint stations, transfer stations and water injection stations of major oil and gas fields increases year by year. All owners adopt the principle of "reduction before transfer" for the disposal of oil sludge to achieve effective recycling of oil and water, while reducing the cost of direct transfer and outsourcing disposal. Utility Model Content

[0003] The purpose of this invention is to provide a skid-mounted device for reducing the volume of oily sludge, so as to solve the above-mentioned technical problems.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a skid-mounted equipment for reducing oily sludge volume, comprising a pretreatment skid, a volume reduction tank, a screening and conveying device, an oil removal device, a dosing device, a dewatering skid, a dewatering centrifuge, and a conveying pipe. The volume reduction tank is installed in the middle of the pretreatment skid, the screening and conveying device is installed on the upper side of the volume reduction tank, the oil removal device is installed on the lower side of the screening and conveying device, the dosing device is installed on the rear side of the volume reduction tank, the dewatering skid is installed on the left side of the pretreatment skid, the dewatering centrifuge is installed in the middle of the dewatering skid, and the left and right ends of the conveying pipe are respectively connected to the dewatering centrifuge and the volume reduction tank.

[0005] Based on the above technical solution, the reduction tank includes a tank body, a support frame, scraper guide columns, an oil outlet, baffle plates, a rotating groove, a shaft hole, a support pipe, a stirring and dosing pipe, and a mud pump inlet. The top left and right sides of the tank body are fixed with the support frame. The front and rear ends of the scraper guide columns are respectively installed on the front and rear supports, and the oil removal device is slidably connected to the tank body through the scraper guide columns. The oil outlet is located at the top front end of the tank body. The baffle plates are distributed in the middle of the left and right ends of the tank body. The rotating groove is located in the middle of the top of the baffle plates. The shaft hole is located at the rear end of the tank body. The rear side end of the support pipe is rotatably connected to the shaft hole, and the support pipe is rotatably connected to the baffle plates through the rotating groove. The support pipe rotates within the tank body through a driving device. The stirring and dosing pipe is distributed between the baffle plates through the support pipe, and the dosing device is connected to the stirring and dosing pipe through the support pipe. The mud pump inlet is located at the rear side end of the tank body, and the mud pump inlet corresponds to the rear side of the baffle plates.

[0006] Based on the above technical solution, the slurry at the bottom of the pool enters the dewatering centrifuge through the slurry pump inlet and conveying pipe for dewatering.

[0007] Compared with existing technologies, this invention has the following advantages: After being screened by a screening and conveying device, the oily sludge enters a reduction tank. After being stirred with chemicals, it settles to remove floating oil, allowing the remaining sludge to enter a dewatering skid for sludge-water separation. This effectively recovers and reuses oil and water in oily sludge treatment, while reducing the cost of direct transport and outsourced disposal. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the appearance and structure of this utility model.

[0009] Figure 2 This is a schematic diagram of the external structure of the volume reduction tank of this utility model.

[0010] Figure 3 This is a cross-sectional view of the internal structure of the volume reduction tank of this utility model.

[0011] In the diagram: 1. Pretreatment skid, 2. Reduction tank, 3. Screening and conveying device, 4. Oil removal device, 5. Dosing device, 6. Dewatering skid, 7. Dewatering centrifuge, 8. Conveying pipe, 9. Tank body, 10. Support, 11. Scraper guide column, 12. Oil outlet, 13. Baffle plate, 14. Rotary trough, 15. Shaft hole, 16. Support pipe, 17. Stirring and dosing pipe, 18. Mud pump port. Detailed Implementation

[0012] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0013] like Figures 1 to 3 As shown, a skid-mounted equipment for reducing oily sludge includes a pretreatment skid 1, a reduction tank 2, a screening and conveying device 3, an oil removal device 4, a dosing device 5, a dewatering skid 6, a dewatering centrifuge 7, and a conveying pipe 8. The reduction tank 2 is installed in the middle of the pretreatment skid 1. The screening and conveying device 3 is installed on the upper side of the reduction tank 2. The oil removal device 4 is installed on the lower side of the screening and conveying device 3. The dosing device 5 is installed on the rear side of the reduction tank 2. The dewatering skid 6 is installed on the left side of the pretreatment skid 1. The dewatering centrifuge 7 is installed in the middle of the dewatering skid 6. The left and right ends of the conveying pipe 8 are respectively connected to the dewatering centrifuge 7 and the reduction tank 2.

[0014] The reduction tank 2 includes a tank body 9, a support frame 10, scraper guide columns 11, an oil outlet 12, baffle plates 13, a rotating trough 14, a shaft hole 15, a support pipe 16, a stirring and dispensing pipe 17, and a mud pump inlet 18. The support frame 10 is fixed to the left and right sides of the top of the tank body 9. The front and rear ends of the scraper guide columns 11 are respectively installed on the front and rear supports 10, and the oil removal device 4 is slidably connected to the tank body 9 through the scraper guide columns 11. The oil outlet 12 is located at the top front end of the tank body 9. The baffle plates 13 are distributed in the middle of the left and right ends of the tank body 9. The rotating trough 14... 4 is located at the top center of the wave deflector 13. The shaft hole 15 is located at the rear end of the pool body 9. The rear side end of the support pipe 16 is rotatably connected to the shaft hole 15. The support pipe 16 is rotatably connected to the wave deflector 13 through the rotating groove 14. The support pipe 16 rotates within the pool body 9 through the driving device. The stirring and dispensing pipe 17 is distributed between the wave deflectors 13 through the support pipe 16. The dosing device 5 is connected to the stirring and dispensing pipe 17 through the support pipe 16. The mud pump port 18 is located at the rear side end of the pool body 9. The mud pump port 18 corresponds to the rear side of the wave deflector 13.

[0015] The slurry at the bottom of the pool 9 enters the dewatering centrifuge 7 through the slurry pump port 18 and the conveying pipe 8 for dewatering.

[0016] The working principle of this invention is as follows: Oily sludge is pumped or fed by an excavator into a screening and conveying device 3 to remove large particles. The screened material enters the tank 9 through the sludge inlet 10. The drive structure drives the support pipe 16 to rotate and stir the dosing pipe 17. The dosing device 5 adds chemicals to the sludge in the tank 9 through the stirring dosing pipe 17. After treatment, the sludge separates into three layers: sludge, water, and oil. The uppermost oil layer is discharged by the oil removal device 4 along the scraper guide column 11 through the oil outlet 12. The sludge-water mixture after oil removal enters the dewatering centrifuge 7 through the sludge pump inlet 18 and the conveying pipe 8 for dewatering. This method effectively recovers and reuses oil and water in sludge treatment, while reducing the cost of direct transportation and outsourced disposal.

[0017] The above description is a preferred embodiment of the present utility model. For those skilled in the art, any changes, modifications, substitutions and variations made to the implementation methods without departing from the principles and spirit of the present utility model, based on the teachings of the present utility model, still fall within the protection scope of the present utility model.

Claims

1. A skid-mounted equipment for reducing oily sludge volume, comprising a pretreatment skid (1), a volume reduction tank (2), a screening and conveying device (3), an oil removal device (4), a dosing device (5), a dewatering skid (6), a dewatering centrifuge (7), and a conveying pipe (8), characterized in that: The pretreatment skid (1) is equipped with a reduction tank (2) in the middle. The screening and conveying device (3) is installed on the upper side of the reduction tank (2). The oil removal device (4) is installed on the lower side of the screening and conveying device (3). The dosing device (5) is installed on the rear side of the reduction tank (2). The dehydration skid (6) is installed on the left side of the pretreatment skid (1). The dehydration centrifuge (7) is installed in the middle of the dehydration skid (6). The left and right ends of the conveying pipe (8) are connected to the dehydration centrifuge (7) and the reduction tank (2) respectively.

2. The skid-mounted equipment for reducing oily sludge volume according to claim 1, characterized in that: The reduction tank (2) includes a tank body (9), a support (10), a scraper guide column (11), an oil outlet (12), a wave deflector (13), a rotating trough (14), a shaft hole (15), a support pipe (16), a stirring and dispensing pipe (17), and a mud pump inlet (18). The top left and right sides of the tank body (9) are fixed with the support (10). The front and rear ends of the scraper guide column (11) are respectively installed on the front and rear supports (10), and the oil removal device (4) is slidably connected to the tank body (9) through the scraper guide column (11). The oil outlet (12) is located at the top front end of the tank body (9). The wave deflector (13) is distributed in the middle of the left and right ends of the tank body (9). The rotating trough (14) is opened at the top center of the wave deflector (13), the shaft hole (15) is opened at the rear end of the pool body (9), the rear end of the side of the support pipe (16) is rotatably connected to the shaft hole (15), and the support pipe (16) is rotatably connected to the wave deflector (13) through the rotating groove (14), and the support pipe (16) rotates in the pool body (9) through the driving device, the stirring and dispensing pipe (17) is distributed between the wave deflectors (13) through the support pipe (16), and the dosing device (5) is connected to the stirring and dispensing pipe (17) through the support pipe (16), the mud pump port (18) is opened at the rear end of the side of the pool body (9), and the mud pump port (18) corresponds to the rear side of the wave deflector (13).

3. The skid-mounted equipment for reducing oily sludge volume according to claim 2, characterized in that: The slurry at the bottom of the pool (9) is dewatered through the slurry pump port (18) and the conveying pipe (8).

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