A multi-stage high-efficiency oily sludge filtering equipment

Abstract

The present invention relates to the technical field of waste oil sludge filtering, and specifically refers to a multi-stage high-efficiency waste oil sludge filtering device, which includes a primary filter cartridge, a cylindrical filter cartridge is arranged inside the primary filter cartridge, a spiral extrusion roller is rotatably connected inside the cylindrical filter cartridge, a first L-shaped conveying pipe is arranged on the primary filter cartridge, a second L-shaped conveying pipe is arranged at the bottom of the primary filter cartridge, a secondary filter cartridge is arranged at the other end of the second L-shaped conveying pipe, an adaptive valve assembly is arranged between the primary filter cartridge and the second L-shaped conveying pipe, a reset assembly that can reset the adaptive valve assembly is arranged between the primary filter cartridge and the first L-shaped conveying pipe, and a transmission assembly is arranged between the adaptive valve assembly and the reset assembly. The multi-stage high-efficiency waste oil sludge filtering device of the present invention can effectively and quickly extrude the waste oil sludge by cooperating with the secondary filter cartridge with the adaptive valve assembly of the primary filter cartridge, thereby improving the extrusion efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of waste oil sludge filtering, in particular to a multi-stage high-efficiency waste oil sludge filtering device. Background Art

[0002] Multi-stage oily sludge filtration technology is an advanced technology for treating oily sludge. It effectively separates and removes grease, water and other impurities in oily sludge through a combination of physical, chemical and biological means, achieving harmless treatment of sludge and resource recycling. This technology usually involves multiple steps such as pretreatment, filtration, separation, dehydration and drying, aiming to minimize environmental pollution and improve the utilization of energy and materials.

[0003] Existing oily sludge filtering equipment usually drives a screw rod or auger blades through a driving device, and cooperates with an extruder to extrude the oily sludge, so that the oil in the sludge and impurities can be separated and squeezed out. However, this structure cannot block one side of the extruder to form a large pressure to effectively separate the oil. Instead, it requires repeated extrusion to separate and squeeze the oil as much as possible, which is inefficient. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a multi-stage high-efficiency oily sludge filtering device, which can effectively and quickly extrude the oily sludge by adapting the adaptive valve assembly of the first-stage filter cartridge in conjunction with the second-stage filter cartridge, thereby improving the extrusion efficiency.

[0005] In order to solve the above technical problems, the technical solution provided by the present invention is as follows: a multi-stage high-efficiency oily sludge filtering device, which comprises a primary filter cartridge, a cylindrical filter cartridge is arranged inside the primary filter cartridge, a liquid discharge pipe is arranged at the bottom end of the primary filter cartridge, a spiral extrusion roller is rotatably connected inside the cylindrical filter cartridge, a first L-shaped conveying pipeline is arranged on the primary filter cartridge, a driving motor is arranged on the top of the spiral extrusion roller, a second L-shaped conveying pipeline is arranged at the bottom of the primary filter cartridge, and a secondary filter cartridge is arranged at the other end of the second L-shaped conveying pipeline;

[0006] An adaptive valve assembly is provided between the primary filter cartridge and the second L-shaped delivery pipeline, a reset assembly capable of resetting the adaptive valve assembly is provided between the primary filter cartridge and the first L-shaped delivery pipeline, and a transmission assembly is provided between the adaptive valve assembly and the reset assembly.

[0007] As an improvement, the adaptive valve assembly includes a seat ring fixedly installed between the primary filter cartridge and the second L-shaped delivery pipe, a through groove is provided in the seat ring, a four-way fixing frame is provided in the through groove, the four ends of the four-way fixing frame are rotatably connected with a rotating shaft, the four ends of the rotating shaft away from the four-way fixing frame pass through the seat ring and are rotatably connected to the seat ring, the end of the rotating shaft located in the through groove is fixedly connected to a fan-shaped baffle, the ends of the four rotating shafts exposed from the seat ring are fixedly connected to a first connecting rod, and the first connecting rod is connected to the transmission assembly.

[0008] As an improvement, the first-stage filter cartridge includes a cartridge body, on which are provided four evenly distributed limit shafts, and the transmission assembly includes a transmission rod, the bottom of which is rotationally connected to the first connecting rod, and the top of which is provided with a ninety-degree arc-shaped limit rail which is slidably connected to the limit shaft.

[0009] As an improvement, a double-sided axis frame is fixedly connected to the ninety-degree arc limit rail, and the reset assembly includes a U-shaped frame. Four groups of spring telescopic rods symmetrically installed at both ends of the double-sided axis frame are evenly distributed in the U-shaped frame. One end of the spring telescopic rod is rotatably connected to the double-sided axis frame, and the other end is rotatably connected to the U-shaped frame. A mounting plate fixedly connected to the cylinder is provided in the U-shaped frame.

[0010] As an improvement, one side of the secondary filter cartridge is provided with a feed port connected to the second L-shaped conveying pipe, and the other side is provided with a discharge port. The secondary filter cartridge includes a collecting cylinder body, in which a symmetrically installed movable first extrusion filter cartridge and a second extrusion filter cartridge are provided. The first extrusion filter cartridge is sleeved on the outside of the second extrusion filter cartridge, and fine filter holes are provided at both ends of the first extrusion filter cartridge and the second extrusion filter cartridge.

[0011] As an improvement, hydraulic telescopic rods are fixedly installed at both ends of the collecting cylinder, and the telescopic ends of the two hydraulic telescopic rods are fixedly connected to the first extrusion filter cylinder and the second extrusion filter cylinder respectively.

[0012] As an improvement, a circular through hole matching the feed port is provided on the side between the first extruded filter cylinder and the second extruded filter cylinder near the feed port, and a strip-shaped through hole is provided on the side between the first extruded filter cylinder and the second extruded filter cylinder near the discharge port, and the two ends of the strip-shaped through hole are semicircular.

[0013] As an improvement, the discharge port comprises a discharge pipe, and a circular valve is rotatably connected inside the discharge pipe.

[0014] As an improvement, drainage ports are provided at both ends of the bottom of the collecting cylinder.

[0015] After adopting the above structure, the present invention has the following advantages:

[0016] 1. The spring telescopic rods at both ends of the double-sided shaft frame provide pre-tension and pre-tightening force. When the amount of dirty oil sludge in the cylindrical filter reaches a certain amount, the gravity of the fan-shaped baffle transmits the force to the double-sided shaft frame through the rotating shaft, the first connecting rod, and the transmission rod in turn, so that the transmission rod moves downward. When the pre-tension and pre-tightening force provided by the spring telescopic rods at both ends of the double-sided shaft frame are greater than the gravity of the fan-shaped baffle, the spring telescopic rods at both ends of the double-sided shaft frame reset the double-sided shaft frame, and cooperate with the cylindrical filter and the spiral extrusion roller to form a secondary separation while maintaining automatic transportation. The pressure of the spiral extrusion roller on the oil sludge can be adjusted by the pre-tension and pre-tightening force provided by the spring of the spring telescopic rod, which improves efficiency and has strong controllability;

[0017] 2. Through the cooperation between the circular valve, the first extrusion filter cartridge and the second extrusion filter cartridge, a circular through hole matching the feed port is provided on the side of the first extrusion filter cartridge and the second extrusion filter cartridge close to the feed port, and a strip through hole is provided on the side of the first extrusion filter cartridge and the second extrusion filter cartridge close to the discharge port, thereby forming a simple and controllable extrusion space and discharge channel, and forming three separations to further squeeze out the oil. Compared with the prior art, the discharge device is eliminated to reduce costs while further improving the separation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a multi-stage high-efficiency oily sludge filtering device of the present invention.

[0019] Figure 2 This is one of the structural schematic diagrams of a first-stage filter cartridge of a multi-stage high-efficiency oily sludge filtering device of the present invention.

[0020] Figure 3 This is the second structural schematic diagram of the first-stage filter cartridge of a multi-stage high-efficiency oily sludge filtering device of the present invention.

[0021] Figure 4 The present invention is a schematic diagram of the structural decomposition of a first-stage filter cartridge of a multi-stage high-efficiency oily sludge filtering device.

[0022] Figure 5 This is one of the structural schematic diagrams of a reset component of a multi-stage high-efficiency oily sludge filtering device of the present invention.

[0023] Figure 6 This is the second structural schematic diagram of the reset component of a multi-stage high-efficiency oily sludge filtering device of the present invention.

[0024] Figure 7 It is a partial schematic diagram of a primary filter cartridge of a multi-stage high-efficiency oily sludge filtering device of the present invention.

[0025] Figure 8 The invention discloses a structural schematic diagram of a valve assembly of a multi-stage high-efficiency oily sludge filtering device.

[0026] Fig. 9 The present invention is a schematic diagram of the structure decomposition of a valve assembly of a multi-stage high-efficiency oily sludge filtering device.

[0027] Fig.10 The present invention is a schematic structural diagram of a secondary filter cartridge of a multi-stage high-efficiency oily sludge filtering device.

[0028] Fig.11 The present invention is a partial structural schematic diagram of a secondary filter cartridge of a multi-stage high-efficiency oily sludge filtering device.

[0029] Fig.12 The present invention is a schematic diagram of the structure of a discharge port of a multi-stage high-efficiency oily sludge filtering device.

[0030] As shown in the figure: 1. Secondary filter cartridge; 101. Collection cylinder; 102. First extrusion filter cartridge; 103. Second extrusion filter cartridge; 104. Fine filter hole; 105. Drain port; 106. Round through hole; 107. Strip through hole; 108. Hydraulic telescopic rod; 2. Feed port; 3. Discharge port; 301. Discharge pipe; 302. Round valve; 4. Second L-shaped delivery pipeline; 5. Adaptive valve assembly; 501. Seat ring; 502. Through slot; 503. Rotating shaft; 504. Four-way fixing frame; 505, fan-shaped baffle; 506, first connecting rod; 6, primary filter cartridge; 601, cartridge body; 602, limit shaft; 7, first L-shaped conveying pipeline; 8, driving motor; 9, transmission assembly; 901, transmission rod; 902, ninety-degree arc limit rail; 903, double-sided shaft frame; 10, reset assembly; 1001, spring telescopic rod; 1002, U-shaped frame; 1003, mounting plate; 11, spiral extrusion roller; 12, drainage pipe; 13, cylindrical filter cartridge. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0032] Combined with Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 , Attachment Figure 8 and attached Fig. 9A multi-stage high-efficiency oily sludge filtering device comprises a primary filter cartridge 6, wherein a cylindrical filter cartridge 13 is arranged inside the primary filter cartridge 6, a liquid discharge pipe 12 is arranged at the bottom end of the primary filter cartridge 6, a spiral extrusion roller 11 is rotatably connected inside the cylindrical filter cartridge 13, a first L-shaped conveying pipeline 7 is arranged on the primary filter cartridge 6, a driving motor 8 is arranged on the top of the spiral extrusion roller 11, a second L-shaped conveying pipeline 4 is arranged at the bottom of the primary filter cartridge 6, an adaptive valve assembly 5 is arranged between the primary filter cartridge 6 and the second L-shaped conveying pipeline 4, and the adaptive valve assembly 5 comprises a valve fixedly mounted on the primary filter cartridge 6 and a second L-shaped delivery pipe 4, wherein the seat ring 501 is provided with a through slot 502, wherein the through slot 502 is provided with a four-way fixing frame 504, wherein the four ends of the four-way fixing frame 504 are rotatably connected with a rotating shaft 503, wherein one end of the four rotating shafts 503 away from the four-way fixing frame 504 passes through the seat ring 501 and is rotatably connected with the seat ring 501, wherein one end of the rotating shaft 503 located in the through slot 502 is fixedly connected with a fan-shaped baffle 505, wherein one end of the four rotating shafts 503 exposed from the seat ring 501 is fixedly connected with a first connecting rod 506, wherein the first connecting rod 506 is connected with the transmission assembly 9;

[0033] Through this structure, the dirty oil sludge is transported from the first L-shaped conveying pipe 7 to the cylindrical filter cartridge 13 in the primary filter cartridge 6, and the driving motor 8 is started to drive the spiral extrusion roller 11 to bring the dirty oil sludge to the bottom of the cylindrical filter cartridge 13. The top of the spiral extrusion roller 11 penetrates the first L-shaped conveying pipe 7 and is rotatably connected to the first L-shaped conveying pipe 7. This is a prior art, so it is not described here. During the rotation of the spiral extrusion roller 11, part of the oil is thrown out of the cylindrical filter cartridge 13 by centrifugal force, and flows out of the drain pipe 12 along the inner wall of the primary filter cartridge 6, forming a primary separation.

[0034] When the dirty oil sludge falls onto the top of the adaptive valve assembly 5, since the four fan-shaped baffles 505 of the adaptive valve assembly 5 are initially in a closed state, the spiral extrusion roller 11 continues to bring the dirty oil sludge to the bottom of the cylindrical filter cartridge 13, so that the dirty oil sludge is further squeezed, and the oil is squeezed out of the cylindrical filter cartridge 13 and flows out of the drain pipe 12 along the inner wall of the primary filter cartridge 6, forming a secondary separation. When the dirty oil sludge in the cylindrical filter cartridge 13 reaches a certain amount, the fan-shaped baffle 505 has a tendency to flip downward under the action of gravity. At this time, the fan-shaped baffle 505 drives the first connecting rod 506 to rotate through the rotating shaft 503, so that the dirty oil sludge enters the second L-shaped conveying pipe 4.

[0035] Combined with Figure 2 , Attachment Figure 6 , Attachment Figure 7 and attached Figure 8A reset assembly 10 capable of resetting the adaptive valve assembly 5 is provided between the primary filter cartridge 6 and the first L-shaped delivery pipe 7, a transmission assembly 9 is provided between the adaptive valve assembly 5 and the reset assembly 10, the primary filter cartridge 6 comprises a cylinder body 601, four evenly distributed limit shafts 602 are provided on the cylinder body 601, the transmission assembly 9 comprises a transmission rod 901, the bottom of the transmission rod 901 is rotatably connected to the first connecting rod 506, and the top of the transmission rod 901 is provided with a 90-degree arc limit rail 902 slidably connected to the limit shaft 602;

[0036] Through this structure, when the fan-shaped baffle 505 needs to be closed, the upper dead point of the ninety-degree arc limit rail 902 contacts the limit shaft 602, the fan-shaped baffle 505 is completely closed, and the limit shaft 602 plays a limiting role. When the fan-shaped baffle 505 needs to be opened, the ninety-degree arc limit rail 902 slides downward, and the transmission rod 901 remains in a vertical state, and the fan-shaped baffle 505 can be driven to flip ninety degrees through the rotating shaft 503.

[0037] Combined with Figure 5 , Attachment Figure 6 , Attachment Figure 7 and attached Figure 8 , a double-sided shaft frame 903 is fixedly connected to the 90-degree arc-shaped limit rail 902, and the reset assembly 10 includes a U-shaped frame 1002, and four groups of spring telescopic rods 1001 symmetrically installed at both ends of the double-sided shaft frame 903 are evenly distributed in the U-shaped frame 1002, one end of the spring telescopic rod 1001 is rotatably connected to the double-sided shaft frame 903, and the other end is rotatably connected to the U-shaped frame 1002, and a mounting plate 1003 fixedly connected to the cylinder 601 is provided in the U-shaped frame 1002;

[0038] Through this structure, the spring telescopic rods 1001 at both ends of the double-sided shaft frame 903 provide pre-tension and pre-tightening force. When the dirty oil sludge in the cylindrical filter cartridge 13 reaches a certain amount, the gravity exerted on the fan-shaped baffle 505 transmits the force to the double-sided shaft frame 903 through the rotating shaft 503, the first connecting rod 506, and the transmission rod 901 in turn. The spring telescopic rods 1001 at both ends of the double-sided shaft frame 903 keep the angle of the double-sided shaft frame 903, so that the transmission rod 901 keeps the vertical state and moves downward along the contact point between the 90-degree arc-shaped limit rail 902 and the limit shaft 602. At this time, the pre-tension and pre-tightening force provided by the spring telescopic rods 1001 at both ends of the double-sided shaft frame 903 gradually increase. When the pre-tension and pre-tightening force provided by the spring telescopic rods 1001 at both ends of the double-sided shaft frame 903 are greater than the gravity exerted on the fan-shaped baffle 505, the spring telescopic rods 1001 at both ends of the double-sided shaft frame 903 reset the double-sided shaft frame 903, and so on.

[0039] Combined with Figure 1 , Attachment Fig.10 and attached Fig.11 A secondary filter cartridge 1 is provided at the other end of the second L-shaped conveying pipeline 4. A feed port 2 communicating with the second L-shaped conveying pipeline 4 is provided on one side of the secondary filter cartridge 1, and a discharge port 3 is provided on the other side. The secondary filter cartridge 1 comprises a collecting cylinder 101, in which a symmetrically installed movable first extrusion filter cartridge 102 and a second extrusion filter cartridge 103 are provided. The first extrusion filter cartridge 102 is sleeved on the outside of the second extrusion filter cartridge 103. Fine filter holes 104 are provided at both ends of the first extrusion filter cartridge 102 and the second extrusion filter cartridge 103. Hydraulic telescopic rods 108 are fixedly installed at both ends of the collecting cylinder 101. The telescopic ends of the two hydraulic telescopic rods 108 are fixedly connected to the first extrusion filter cartridge 102 and the second extrusion filter cartridge 103, respectively. Liquid discharge ports 105 are provided at both ends of the bottom of the collecting cylinder 101.

[0040] A pump body is provided between the second L-shaped conveying pipe 4 and the feed port 2. This is the prior art and is not described in detail here. Through this structure, when the oil sludge that has undergone secondary separation enters the secondary filter cartridge 1 through the second L-shaped conveying pipe 4 and the feed port 2, it falls into the first extrusion filter cartridge 102 and the second extrusion filter cartridge 103. When the volume of the oil sludge that has undergone secondary separation in the first extrusion filter cartridge 102 and the second extrusion filter cartridge 103 reaches a certain amount, the hydraulic telescopic rods 108 at both ends of the collecting cylinder 101 are started to compress the space between the first extrusion filter cartridge 102 and the second extrusion filter cartridge 103, thereby further squeezing the oil in the first extrusion filter cartridge 102 and the second extrusion filter cartridge 103 out of the fine filter holes 104 and discharged through the drain port 105.

[0041] A circular through hole 106 matching the feed port 2 is provided on the side between the first extruded filter cartridge 102 and the second extruded filter cartridge 103 near the feed port 2, and a strip through hole 107 is provided on the side between the first extruded filter cartridge 102 and the second extruded filter cartridge 103 near the discharge port 3. Both ends of the strip through hole 107 are semicircular. The discharge port 3 includes a discharge pipe 301, and a circular valve 302 is rotatably connected to the discharge pipe 301.

[0042] The circular valve 302 is controlled to be closed or opened by a driving device. This is a prior art and is not described in detail here. When the first extruded filter cartridge 102 and the second extruded filter cartridge 103 are in the initial process of space compression, the driving device is controlled to close the circular valve 302. Since the first extruded filter cartridge 102 and the second extruded filter cartridge 103 are provided with a circular through hole 106 that matches the feed port 2 on one side close to the feed port 2, after the first extruded filter cartridge 102 and the second extruded filter cartridge 103 are space compressed by the hydraulic telescopic rod 108, the area of ​​the circular through hole 106 is reduced until it is completely closed. At this time, both sides of the first extruded filter cartridge 102 and the second extruded filter cartridge 103 are in a closed state, and the extrusion is continued until the oil is squeezed out of the fine filter holes 104 and the oil is squeezed out of the fine filter holes 104. After filtering the hole 104, start the hydraulic telescopic rod 108 to slightly expand the space between the first extrusion filter cartridge 102 and the second extrusion filter cartridge 103, and control the circular valve 302 to open through the driving device, and then continue to control the hydraulic telescopic rod 108 to squeeze the space between the first extrusion filter cartridge 102 and the second extrusion filter cartridge 103. At this time, since the first extrusion filter cartridge 102 and the second extrusion filter cartridge 103 are provided with a strip through hole 107 on the side close to the discharge port 3, the two ends of the strip through hole 107 are semicircular, so that the first extrusion filter cartridge 102 and the second extrusion filter cartridge 103 are always connected to the discharge pipe 301 on the side close to the discharge port 3, so that the mud separated by three extrusions of the first extrusion filter cartridge 102 and the second extrusion filter cartridge 103 is discharged, forming a three-time extrusion separation.

[0043] In the specific implementation of the present invention, the dirty oil sludge is transported from the first L-shaped conveying pipe 7 to the cylindrical filter cartridge 13 in the primary filter cartridge 6, the driving motor 8 is started to drive the spiral extrusion roller 11 to bring the dirty oil sludge to the bottom of the cylindrical filter cartridge 13, the top of the spiral extrusion roller 11 penetrates the first L-shaped conveying pipe 7 and is rotatably connected to the first L-shaped conveying pipe 7, and part of the oil is thrown out of the cylindrical filter cartridge 13 by centrifugal force, and flows out of the drain pipe 12 along the inner wall of the primary filter cartridge 6, forming a primary separation;

[0044] When the dirty oil sludge falls onto the adaptive valve assembly 5, since the four fan-shaped baffles 505 of the adaptive valve assembly 5 are initially in a closed state, the spiral extrusion roller 11 continues to bring the dirty oil sludge to the bottom of the cylindrical filter cartridge 13, so that the dirty oil sludge is further squeezed, and the oil is squeezed out of the cylindrical filter cartridge 13 and flows out of the drain pipe 12 along the inner wall of the primary filter cartridge 6, forming a secondary separation;

[0045] The spring telescopic rods 1001 at both ends of the double-sided shaft frame 903 provide pre-tension and pre-tightening force. When the amount of dirty oil sludge in the cylindrical filter cartridge 13 reaches a certain amount, the gravity exerted on the fan-shaped baffle 505 transmits the force to the double-sided shaft frame 903 through the rotating shaft 503, the first connecting rod 506, and the transmission rod 901 in sequence. The spring telescopic rods 1001 at both ends of the double-sided shaft frame 903 keep the double-sided shaft frame 903 at an angle, so that the transmission rod 901 keeps the vertical state along the 90-degree arc limit rail 902 The contact point with the limit shaft 602 moves downward, and the pretension and pre-tightening force provided by the spring telescopic rods 1001 at both ends of the double-sided shaft frame 903 gradually increase. When the pretension and pre-tightening force provided by the spring telescopic rods 1001 at both ends of the double-sided shaft frame 903 are greater than the gravity exerted on the fan-shaped baffle 505, the spring telescopic rods 1001 at both ends of the double-sided shaft frame 903 reset the double-sided shaft frame 903, thereby continuously performing secondary separation and continuously conveying the second L-shaped conveying pipe 4;

[0046] After the oil sludge that has undergone secondary separation enters the secondary filter cartridge 1 through the second L-shaped conveying pipe 4 and the feed port 2, the driving device is controlled to close the circular valve 302. Since the first extrusion filter cartridge 102 and the second extrusion filter cartridge 103 are provided with a circular through hole 106 that matches the feed port 2 on one side close to the feed port 2, after the first extrusion filter cartridge 102 and the second extrusion filter cartridge 103 are spatially compressed by the hydraulic telescopic rod 108, the area of ​​the circular through hole 106 is reduced until it is completely closed. At this time, both sides of the first extrusion filter cartridge 102 and the second extrusion filter cartridge 103 are in a closed state, and the extrusion is continued until the oil squeezes out the fine filter hole 104. After the oil squeezes out the fine filter hole 104, the hydraulic telescopic rod 108 is started. 08 slightly expands the space between the first extrusion filter cartridge 102 and the second extrusion filter cartridge 103, and controls the circular valve 302 to open through the driving device, and then continues to control the hydraulic telescopic rod 108 to squeeze the space between the first extrusion filter cartridge 102 and the second extrusion filter cartridge 103. At this time, since the first extrusion filter cartridge 102 and the second extrusion filter cartridge 103 are provided with a strip through hole 107 on the side close to the discharge port 3, the two ends of the strip through hole 107 are semicircular, so that the first extrusion filter cartridge 102 and the second extrusion filter cartridge 103 are always connected to the discharge pipe 301 on the side close to the discharge port 3, so that the mud separated by three extrusions of the first extrusion filter cartridge 102 and the second extrusion filter cartridge 103 is discharged, forming a three-way separation.

[0047] The present invention and its implementation methods are described above, and such description is not restrictive, and the actual structure is not limited thereto. In general, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can creatively design a structure and implementation method similar to the technical solution, which should fall within the protection scope of the present invention.

Claims

1. A multi-stage high-efficiency oily sludge filtering device, comprising a primary filter cartridge (6), wherein a cylindrical filter cartridge (13) is provided inside the primary filter cartridge (6), a liquid discharge pipe (12) is provided at the bottom end of the primary filter cartridge (6), a spiral extrusion roller (11) is rotatably connected inside the cylindrical filter cartridge (13), a first L-shaped conveying pipeline (7) is provided on the primary filter cartridge (6), a driving motor (8) is provided on the top of the spiral extrusion roller (11), a second L-shaped conveying pipeline (4) is provided at the bottom of the primary filter cartridge (6), and a secondary filter cartridge (1) is provided at the other end of the second L-shaped conveying pipeline (4), characterized in that: An adaptive valve assembly (5) is provided between the primary filter cartridge (6) and the second L-shaped delivery pipeline (4), a reset assembly (10) capable of resetting the adaptive valve assembly (5) is provided between the primary filter cartridge (6) and the first L-shaped delivery pipeline (7), and a transmission assembly (9) is provided between the adaptive valve assembly (5) and the reset assembly (10); The adaptive valve assembly (5) comprises a seat ring (501) fixedly mounted between the primary filter cartridge (6) and the second L-shaped delivery pipe (4); a through groove (502) is provided in the seat ring (501); a four-way fixing frame (504) is provided in the through groove (502); four ends of the four-way fixing frame (504) are rotatably connected to rotating shafts (503); one end of the four rotating shafts (503) away from the four-way fixing frame (504) passes through the seat ring (501) and is rotatably connected to the seat ring (501); one end of the rotating shaft (503) located in the through groove (502) is fixedly connected to a fan-shaped baffle (505); one end of the four rotating shafts (503) exposed from the seat ring (501) is fixedly connected to a first connecting rod (506); and the first connecting rod (506) is connected to the transmission assembly (9); The primary filter cartridge (6) comprises a cartridge body (601), the cartridge body (601) is provided with four evenly distributed limiting shafts (602), the transmission assembly (9) comprises a transmission rod (901), the bottom of the transmission rod (901) is rotatably connected to the first connecting rod (506), and the top of the transmission rod (901) is provided with a ninety-degree arc-shaped limiting rail (902) slidably connected to the limiting shaft (602); The 90-degree arc-shaped limit rail (902) is fixedly connected to a double-sided shaft frame (903); the reset assembly (10) comprises a U-shaped frame (1002); four groups of spring telescopic rods (1001) are evenly distributed in the U-shaped frame (1002) and are symmetrically installed at both ends of the double-sided shaft frame (903); the four groups of spring telescopic rods (1001) are respectively installed between the inner and outer frames of the U-shaped frame (1002); one end of the spring telescopic rod (1001) is rotatably connected to the double-sided shaft frame (903), and the other end is rotatably connected to the U-shaped frame (1002); a mounting plate (1003) fixedly connected to the cylinder (601) is provided in the U-shaped frame (1002); The secondary filter cartridge (1) is provided with a feed port (2) connected to the second L-shaped conveying pipe (4) on one side, and a discharge port (3) on the other side. The secondary filter cartridge (1) comprises a collecting cylinder (101), wherein a symmetrically mounted movable first extruded filter cartridge (102) and a second extruded filter cartridge (103) are provided inside the collecting cylinder (101), the first extruded filter cartridge (102) is sleeved outside the second extruded filter cartridge (103), and an end of the first extruded filter cartridge (102) away from the second extruded filter cartridge (103) and an end of the second extruded filter cartridge (103) away from the first extruded filter cartridge (102) are respectively provided with fine filter holes (104).

2. The multi-stage high-efficiency oily sludge filtering equipment according to claim 1 is characterized in that: Hydraulic telescopic rods (108) are fixedly mounted at both ends of the collecting cylinder (101), and the telescopic ends of the two hydraulic telescopic rods (108) are respectively fixedly connected to the first extrusion filter cylinder (102) and the second extrusion filter cylinder (103).

3. The multi-stage high-efficiency oily sludge filtering equipment according to claim 1 is characterized in that: A circular through hole (106) matching with the feed port (2) is provided on one side between the first extruded filter cartridge (102) and the second extruded filter cartridge (103) and close to the feed port (2); a strip-shaped through hole (107) is provided on one side between the first extruded filter cartridge (102) and the second extruded filter cartridge (103) and close to the discharge port (3); both ends of the strip-shaped through hole (107) are semicircular.

4. The multi-stage high-efficiency oily sludge filtering equipment according to claim 1 is characterized in that: The discharge port (3) comprises a discharge pipe (301), and a circular valve (302) is rotatably connected inside the discharge pipe (301).

5. The multi-stage high-efficiency oily sludge filtering equipment according to claim 1 is characterized in that: Liquid discharge ports (105) are provided at both ends of the bottom of the collecting cylinder (101).

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