Oil-containing sludge solid-liquid vacuum separation device

Abstract

The utility model relates to waste treatment device technical field discloses an oily sludge solid -liquid vacuum separation device, including base, the top fixedly connected with mixing bucket of base, the inner wall equidistance rotation of mixing bucket is connected with a plurality of mixing mechanisms, the mixing mechanism is used for stirring mixture, the top rear side fixedly connected with control box of base, the inner wall top front and back side of control box all are fixedly connected with heat abstractor, the heat abstractor is used for heat dissipation, the mixing mechanism includes a plurality of stirring blades, a plurality of the stirring blades are equidistance rotation respectively connected in the inner wall of mixing bucket, in the utility model, the mixture material is to filter separation device through the butt joint pipe, the vacuum transmission belt with 5~8mu m ceramic membrane is used for the first stage vacuum separation, 60% liquid phase is separated under 15min at -0.07MPa, the second stage is separated 25%~30% liquid phase under 30min at -0.09~-0.1MPa, the oil content in solid phase after separation is less than 15%, the sludge volume is reduced by 70%~80%, reduces the dangerous waste.

Description

Technical Field

[0001] This utility model relates to the technical field of waste treatment devices, and in particular to a solid-liquid vacuum separation device for oily sludge. Background Technology

[0002] Oily sludge is a complex mixture composed of oil, solid particles, water, and other impurities. The "solid" mainly includes silt, corrosion products, and organic residues; the "liquid" includes crude oil, refined oil, emulsions, and water. The oily sludge solid-liquid vacuum separation device is a device used to treat oily sludge and achieve solid-liquid separation, aiming to reduce, recycle, and render harmless the oily sludge.

[0003] Existing vacuum separation devices use rotating paddles to generate axial thrust during separation. This thrust is used to pre-treat and mix the water with chemicals or liquids before the mixture enters the main vacuum separation unit. The pressure difference created by the vacuum environment forces the liquid through a filter membrane or filter cloth, while solid particles are retained, ultimately achieving efficient solid-liquid (including oil) separation. However, the axial thrust mainly drives the material to flow axially along the tank, but the radial turbulence is weak, failing to form a "comprehensive cross-mixing flow." This results in the chemicals being dispersed only in localized areas, thus reducing overall mixing efficiency. Current technology addresses this by installing baffles inside the tank to change the material's flow direction, guiding it to form more complex flow patterns, promoting radial flow and turbulence, reducing dead zones, and improving mixing uniformity. However, the presence of baffles increases the structural complexity of the tank, especially when processing oily or sticky materials. The surface, back, and gaps connecting the baffles to the tank are prone to adhering to oil, silt, or flocculent residues, affecting subsequent mixing and treatment effects. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a vacuum separation device for solid-liquid separation of oily sludge, which aims to improve the problem in the prior art where the guide plate increases the complexity of the internal structure of the tank, and when processing oily and sticky particulate materials, oil, mud, or floc residues will adhere to the surface, back and the gaps connecting with the tank, affecting the subsequent mixing effect.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a vacuum separation device for oily sludge solid-liquid mixtures, comprising a base, a mixing tank fixedly connected to the top of the base, a plurality of mixing mechanisms rotatably connected at equal intervals to the inner wall of the mixing tank, the mixing mechanisms being used for stirring and mixing, a control box fixedly connected to the rear side of the top of the base, and heat dissipation mechanisms fixedly connected to the front and rear sides of the inner wall of the control box, the heat dissipation mechanisms being used for heat dissipation; the mixing mechanism includes a plurality of stirring blades, the plurality of stirring blades being rotatably connected at equal intervals to the inner wall of the mixing tank, a driven gear fixedly connected to the top of the stirring blades, a gear ring meshing with the outer wall of the driven gear, and a drive assembly fixedly connected to the top of the mixing tank.

[0006] As a further description of the above technical solution:

[0007] The drive assembly includes a motor, which is fixedly connected to the top of the mixing tank. Multiple L-shaped plates are fixedly connected to the top of the mixing tank. A connecting rod is rotatably connected to the top of the inner wall of each L-shaped plate. A first pulley is fixedly connected to the middle of the outer wall of the left connecting rod, and a connecting belt is installed on the outer wall of the first pulley. A second pulley is fixedly connected to the middle of the outer wall of the right connecting rod. A drive gear is fixedly connected to the bottom end of both connecting rods.

[0008] As a further description of the above technical solution:

[0009] The heat dissipation mechanism includes multiple fixing blocks, which are slidably connected to the front and rear sides of the top of the inner wall of the control box. A battery is fixedly connected to the top of the fixing block, a fan is fixedly connected to the bottom of the fixing block, and a power assembly is fixedly connected to the rear side of the outer wall of the control box.

[0010] As a further description of the above technical solution:

[0011] The power assembly includes a second motor, which is fixedly connected to the rear side of the outer wall of the control box. A worm gear is fixedly connected to the output end of the second motor. Multiple lead screws are equidistantly rotatably connected to the right side of the inner wall of the control box. Worm wheels are fixedly connected to the outer wall of each lead screw, which penetrates the interior right end of the control box. An inner sliding groove long plate is fixedly connected to the top of the inner wall of the control box. Slide plates are slidably connected to the front and rear sides of the inner wall of the inner sliding groove long plate. The worm gear meshes with the worm wheels. A support plate is fixedly connected to the bottom of the second motor.

[0012] As a further description of the above technical solution:

[0013] The inner wall of the fixing block is threaded to the outer wall of the lead screw, and the outer wall of the sliding plate is fixedly connected to the adjacent outer wall of the fixing block on the opposite side.

[0014] As a further description of the above technical solution:

[0015] The driving gear meshes with the driven gear, and the outer walls of the multiple gear rings are respectively fixedly connected to the left and right sides of the inner wall of the control box on opposite sides.

[0016] As a further description of the above technical solution:

[0017] A filtration and separation device is fixedly connected to the top left side of the base, and an inlet pipe is connected to the right side of the outer wall of the mixing tank.

[0018] As a further description of the above technical solution:

[0019] The top of the mixing tank is connected to a connecting pipe, and the four corners of the bottom of the base are fixedly connected with adjusting bolts. The outer wall of the adjusting bolt is threaded with adjusting pads.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the motor drives the stirring blade to rotate via a pulley and belt, and also rotates around the toothed ring. Multi-directional stirring ensures that the demulsifier and sludge are mixed evenly. Microwave heating is then applied to 45-50°C, and the mixture is left to stand for 30 minutes to complete pre-demulsification. The mixture is then fed to a filtration and separation device via a connecting pipe. The first-stage vacuum separation uses a vacuum conveyor belt with a 5-8µm ceramic membrane, separating 60% of the liquid phase in 15 minutes at -0.07MPa. The second stage separates 25%-30% of the liquid phase in 30 minutes at -0.09~-0.1MPa. After separation, the oil content in the solid phase is <15%, and the sludge volume is reduced by 70%-80%, thus reducing the amount of hazardous waste.

[0022] 2. In this utility model, when heat dissipation is required, the second motor starts, driving the worm to rotate, which in turn meshes with the lead screw with the worm wheel to rotate. Because the two lead screws have opposite grooves, the two slide plates in the inner sliding groove long plate move in opposite directions, driving the fixed block and the fan to slide in opposite directions synchronously, expanding the air sweeping range and improving the heat dissipation efficiency. Attached Figure Description

[0023] Figure 1 This is a front view of a solid-liquid vacuum separation device for oily sludge proposed in this utility model;

[0024] Figure 2 This is a perspective view of a vacuum separation device for oily sludge according to the present invention.

[0025] Figure 3 This is a partial structural schematic diagram of a vacuum separation device for oily sludge proposed in this utility model;

[0026] Figure 4This is a partial structural exploded view of a vacuum separation device for oily sludge proposed in this utility model;

[0027] Figure 5 This is a partial structural diagram of a vacuum separation device for oily sludge proposed in this utility model.

[0028] Legend:

[0029] 1. Base; 2. Mixing mechanism; 201. Stirring blade; 202. Driven gear; 203. Gear ring; 204. Drive assembly; 2041. Motor 1; 2042. Drive gear; 2043. First pulley; 2044. L-shaped plate; 2045. Connecting belt; 2046. Second pulley; 2047. Connecting rod; 3. Heat dissipation mechanism; 301. Fixing block; 302. Fan; 303. Battery; 304. Power assembly; 3041. Motor 2; 3042. Support plate; 3043. Worm gear; 3044. Worm; 3045. Slide plate; 3046. Lead screw; 3047. Inner sliding groove long plate; 4. Control box; 5. Filtering and separation device; 6. Connecting pipe; 7. Inlet pipe; 8. Mixing tank; 9. Adjusting bolt; 10. Adjusting feet. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figure 2 , Figure 3 and Figure 4This utility model provides an embodiment of a vacuum solid-liquid separation device for oily sludge, comprising a base 1, a mixing tank 8 fixedly connected to the top of the base 1, and multiple mixing mechanisms 2 rotatably connected at equal intervals to the inner wall of the mixing tank 8. The mixing mechanisms 2 are used for stirring and mixing. A control box 4 is fixedly connected to the rear side of the top of the base 1, and heat dissipation mechanisms 3 are fixedly connected to the front and rear sides of the top of the inner wall of the control box 4 for heat dissipation. The mixing mechanism 2 includes multiple stirring blades 201, which are rotatably connected at equal intervals to the inner wall of the mixing tank 8. A driven gear 202 is fixedly connected to the top of the stirring blade 201, and a gear ring 203 meshes with the outer wall of the driven gear 202. A drive assembly 204 is fixedly connected to the top of the mixing tank 8. Component 204 includes a motor 2041, which is fixedly connected to the top of the mixing tank 8. Multiple L-shaped plates 2044 are fixedly connected to the top of the mixing tank 8. Connecting rods 2047 are rotatably connected to the top of the inner wall of each L-shaped plate 2044. A first pulley 2043 is fixedly connected to the middle of the outer wall of the left connecting rod 2047. A connecting belt 2045 is installed on the outer wall of the first pulley 2043. A second pulley 2046 is fixedly connected to the middle of the outer wall of the right connecting rod 2047. A drive gear 2042 is fixedly connected to the bottom of each of the two connecting rods 2047. The drive gear 2042 meshes with the driven gear 202. The outer walls of multiple gear rings 203 are fixedly connected to the left and right sides of the inner wall of the control box 4, respectively, on opposite sides.

[0032] Specifically, oily sludge enters the mixing tank 8 through the inlet pipe 7, and demulsifier is added simultaneously. The mixing mechanism 2 is started, and motor 2041 drives the two connecting rods 2047 to rotate synchronously through the first pulley 2043 of the left connecting rod 2047, the connecting belt 2045, and the second pulley 2046 of the right connecting rod 2047. This causes the bottom drive gear 2042 to drive the driven gear 202 and the stirring blade 201 to rotate. At the same time, the driven gear 202 revolves around the gear ring 203, achieving multi-directional mixing and ensuring that the demulsifier and sludge are mixed evenly. During the mixing process, auxiliary microwave heating is performed to 45-50℃, and the mixture is held for 30 minutes. After pre-demulsification, the mixture is transported through the connecting pipe 6 at the top of the mixing tank 8 to the filtration and separation device 5 on the top left of the base 1. In the first-stage vacuum separation, a ceramic membrane with a pore size of 5–8 µm is nested in rubber and sealed to a vacuum cylinder via a vacuum conveyor belt. Separation is carried out for 15 minutes at a vacuum degree of -0.07 MPa, separating 60% of the liquid phase. In the second-stage vacuum separation, separation continues for 30 minutes at a vacuum degree of -0.09 to -0.1 MPa, separating 25%–30% of the liquid phase. After separation, the oil content in the solid phase is less than 15%, and the sludge volume is reduced by 70%–80%.

[0033] Reference Figure 1 , Figure 2 and Figure 5The heat dissipation mechanism 3 includes multiple fixing blocks 301, which are slidably connected to the front and rear sides of the top of the inner wall of the control box 4. A battery 303 is fixedly connected to the top of the fixing block 301, and a fan 302 is fixedly connected to the bottom of the fixing block 301. A power assembly 304 is fixedly connected to the rear side of the outer wall of the control box 4. The power assembly 304 includes a second motor 3041, which is fixedly connected to the rear side of the outer wall of the control box 4. A worm gear 3044 is fixedly connected to the output end of the second motor 3041. Multiple lead screws 3 are equidistantly rotatably connected to the right side of the inner wall of the control box 4. 046, the outer wall of the lead screw 3046 penetrates the inside of the control box 4 and is fixedly connected to the right end of the worm gear 3043. The top of the inner wall of the control box 4 is fixedly connected to the inner slide plate 3047. The inner wall of the inner slide plate 3047 is slidably connected to the front and rear sides of the inner wall. The worm 3044 is meshed with the worm gear 3043. The bottom of the motor 3041 is fixedly connected to the support plate 3042. The middle of the inner wall of the fixing block 301 is threadedly connected to the outer wall of the lead screw 3046. The outer wall of the sliding plate 3045 is fixedly connected to the adjacent side of the outer wall of the fixing block 301 on the side away from the outer wall.

[0034] Specifically, when heat dissipation is required, motor 3041 starts, and its output drives worm gear 3044 to rotate. Worm gear 3044 meshes with worm wheels 3043 at the ends of multiple lead screws 3046 rotatably connected to the right side of the inner wall of control box 4, driving lead screws 3046 to rotate. Since the two lead screws 3046 have opposite grooves, their rotation will drive the two sliding plates 3045 sliding on the inner wall of the inner sliding groove plate 3047 to move in opposite directions, one forward and one backward. The reverse movement of the sliding plates 3045 will drive the associated fixed block 301 and fan 302 to slide in opposite directions synchronously, thereby quickly expanding the airflow range of fan 302 in control box 4 and improving heat dissipation efficiency.

[0035] Reference Figure 1 and Figure 2 A filter separation device 5 is fixedly connected to the top left side of the base 1. An inlet pipe 7 is connected to the outer right side of the mixing tank 8. A connecting pipe 6 is connected to the top of the mixing tank 8. Adjusting bolts 9 are fixedly connected to the four corners of the bottom of the base 1. Adjusting feet 10 are threadedly connected to the outer wall of the adjusting bolts 9.

[0036] Specifically, the filtration and separation device 5 is fixed on the top left side of the base 1 and is used to receive the mixed liquid after being treated by the mixing tank 8. It completes the solid-liquid-oil separation through the vacuum separation principle. The inlet pipe 7 is connected to the right side of the outer wall of the mixing tank 8 and serves as the input channel for oily sludge, treated water and reagents. The material to be treated is introduced into the mixing tank 8 for stirring and mixing. The connecting pipe 6 is connected to the top of the mixing tank 8 and is used to extract the mixed liquid from the mixing tank 8 and transport it to the filtration and separation device 5. The adjusting bolts 9 at the four corners of the bottom of the base 1 are threadedly connected to the adjusting feet 10. By rotating the adjusting bolts 9, the height of the adjusting feet 10 can be changed to achieve the horizontal calibration and stable support of the base 1, ensuring the stability of the equipment during operation.

[0037] Working principle: Oily sludge enters the mixing tank 8 through the inlet pipe 7, and demulsifier is added simultaneously. The mixing mechanism 2 is started. Motor 2041 drives the two connecting rods 2047 to rotate synchronously through the first pulley 2043 of the left connecting rod 2047, the connecting belt 2045, and the second pulley 2046 of the right connecting rod 2047. This causes the bottom drive gear 2042 to drive the driven gear 202 and the stirring plate 201 to rotate. At the same time, the driven gear 202 revolves around the gear ring 203, realizing multi-directional stirring and ensuring that the demulsifier and sludge are mixed evenly. During the mixing process, auxiliary microwave heating is carried out to 45-50℃, and the mixture is left to stand for 30 minutes to complete the pre-demulsification. In the emulsion treatment and vacuum separation stage, the mixed material is conveyed through the connecting pipe 6 at the top of the mixing tank 8 to the filtration and separation device 5 on the top left of the base 1. The first-stage vacuum separation utilizes a vacuum conveyor belt with a ceramic membrane of 5-8µm pore size nested in rubber, sealed to a vacuum cylinder, to separate for 15 minutes at a vacuum degree of -0.07MPa, separating 60% of the liquid phase. The second-stage vacuum separation continues for 30 minutes at a vacuum degree of -0.09~-0.1MPa, separating 25%-30% of the liquid phase. After separation, the oil content in the solid phase is less than 15%, and the sludge volume is reduced by 70%-80%, thereby reducing the amount of hazardous waste.

[0038] When heat dissipation is required, motor 3041 starts, and its output drives worm 3044 to rotate. Worm 3044 meshes with worm gears 3043 at the ends of multiple lead screws 3046 that are rotatably connected to the right side of the inner wall of control box 4, driving the lead screws 3046 to rotate. Since the grooves of the two lead screws 3046 are opposite, their rotation will drive the two sliding plates 3045 that slide on the inner wall of the inner sliding groove long plate 3047 to move in opposite directions, one forward and one backward. The reverse movement of the sliding plates 3045 will drive the associated fixed block 301 and fan 302 to slide in opposite directions synchronously, thereby quickly expanding the airflow range of fan 302 in control box 4 and improving heat dissipation efficiency.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An oil-containing sludge solid-liquid vacuum separation device comprising a base (1), characterized in that: A mixing tank (8) is fixedly connected to the top of the base (1). Multiple mixing mechanisms (2) are rotatably connected to the inner wall of the mixing tank (8) at equal intervals. The mixing mechanism (2) is used for stirring and mixing. A control box (4) is fixedly connected to the rear side of the top of the base (1). Heat dissipation mechanisms (3) are fixedly connected to the front and rear sides of the top of the inner wall of the control box (4). The heat dissipation mechanism (3) is used for heat dissipation. The mixing mechanism (2) includes multiple stirring blades (201), which are rotatably connected at equal intervals to the inner wall of the mixing tank (8). A driven gear (202) is fixedly connected to the top of the stirring blade (201), and a gear ring (203) is meshed with the outer wall of the driven gear (202). A drive assembly (204) is fixedly connected to the top of the mixing tank (8).

2. The oil-containing sludge solid-liquid vacuum separation device according to claim 1, characterized in that: The drive assembly (204) includes a motor (2041), which is fixedly connected to the top of the mixing tank (8). A plurality of L-shaped plates (2044) are fixedly connected to the top of the mixing tank (8). A connecting rod (2047) is rotatably connected to the top of the inner wall of each L-shaped plate (2044). A first pulley (2043) is fixedly connected to the middle of the outer wall of the left connecting rod (2047). A connecting belt (2045) is installed on the outer wall of the first pulley (2043). A second pulley (2046) is fixedly connected to the middle of the outer wall of the right connecting rod (2047). A drive gear (2042) is fixedly connected to the bottom end of each of the two connecting rods (2047).

3. The oil-containing sludge solid-liquid vacuum separation device according to claim 1, characterized in that: The heat dissipation mechanism (3) includes multiple fixing blocks (301), which are slidably connected to the front and rear sides of the top of the inner wall of the control box (4). A battery (303) is fixedly connected to the top of the fixing block (301), a fan (302) is fixedly connected to the bottom of the fixing block (301), and a power assembly (304) is fixedly connected to the rear side of the outer wall of the control box (4).

4. The oil-containing sludge solid-liquid vacuum separation device according to claim 3, characterized in that: The power assembly (304) includes a second motor (3041), which is fixedly connected to the rear side of the outer wall of the control box (4). A worm gear (3044) is fixedly connected to the output end of the second motor (3041). Multiple lead screws (3046) are equidistantly rotatably connected to the right side of the inner wall of the control box (4). The outer wall of the lead screws (3046) penetrates the inside of the control box (4) and the right end of each lead screw (3046) is fixedly connected to a worm wheel (3043). An inner sliding groove long plate (3047) is fixedly connected to the top of the inner wall of the control box (4). A sliding plate (3045) is slidably connected to the front and rear sides of the inner wall of the inner sliding groove long plate (3047). The worm gear (3044) meshes with the worm wheel (3043). A support plate (3042) is fixedly connected to the bottom of the second motor (3041).

5. An oil-containing sludge solid-liquid vacuum separation device according to claim 4, characterized in that: The inner wall of the fixing block (301) is threadedly connected to the outer wall of the lead screw (3046), and the outer wall of the sliding plate (3045) is fixedly connected to the side of the outer wall of the fixing block (301) on the opposite side.

6. An oil-containing sludge solid-liquid vacuum separation device according to claim 2, characterized in that: The driving gear (2042) meshes with the driven gear (202), and the outer walls of the multiple gear rings (203) are respectively fixedly connected to the left and right sides of the inner wall of the control box (4) on opposite sides.

7. An oil-containing sludge solid-liquid vacuum separation device according to claim 1, characterized in that: A filter separation device (5) is fixedly connected to the top left side of the base (1), and an inlet pipe (7) is connected to the right side of the outer wall of the mixing tank (8).

8. The oil-containing sludge solid-liquid vacuum separation device according to claim 1, characterized in that: The top of the mixing tank (8) is connected to the connecting pipe (6), and the four corners of the bottom of the base (1) are fixedly connected to the adjusting bolts (9), and the outer wall of the adjusting bolts (9) is threaded with adjusting pads (10).

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