Oil removal device for chemical wastewater

Abstract

The utility model discloses an oil removal device for chemical wastewater, which comprises an oil removal tank, an oil stirring device is rotatably mounted at the upper end of the oil removal tank, and an oil bead filtering device is mounted on the bottom side of the oil removal tank through bolts. According to the oil stirring device, the arranged fan can blow grease and suspended solids on the liquid level to the position beside the stirring assembly, the stirring plate is driven by the driving motor to rotate, the grease and the suspended solids on the liquid level are stirred out of the oil outlet channel, and the arc-shaped plate arranged at the other end of the stirring plate can improve the stirring effect; the arranged filter screen can separate poked grease from wastewater suspended solids, so that the grease and the wastewater suspended solids can be independently treated, the tubular ceramic membranes are arranged in the filter frame, so that tiny grease in the wastewater can be treated, the wastewater can be purified and recycled, in addition, the arranged inflation cleaning assembly can blow air to the tubular ceramic membranes, and the effect of cleaning the wastewater is achieved. Pollutants in membrane holes of the tubular ceramic membrane are removed, and the filtering effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical wastewater treatment, in particular to an oil removal device for chemical wastewater. Background Art

[0002] If chemical wastewater is discharged directly, it will not only have a bad impact on the environment, but also make the wastewater unable to be effectively utilized, resulting in waste. The oil contained in the wastewater will make the water environment in a closed anaerobic state, thus affecting the treatment effect. Therefore, it is necessary to remove oil from the chemical wastewater in advance.

[0003] The existing method of removing oil from chemical wastewater is gravity sedimentation. The wastewater is left to stand for a period of time so that the oil sinks to the bottom of the water and the supernatant is discharged, thereby reducing the efficiency of wastewater oil removal. If the oil particles are large, the oil will float on the water surface, making it difficult to remove the oil by sedimentation. Summary of the invention

[0004] The purpose of the utility model is to provide an oil removal device for chemical wastewater to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: an oil removal device for chemical wastewater, comprising an oil removal tank, an oil removal device is rotatably installed on the upper end of the oil removal tank, and an oil bead filtering device is bolted to the bottom side of the oil removal tank.

[0006] The oil-displacing device comprises a fan, which is arranged on the left outer wall of the oil-displacing tank, and a displacing assembly is rotatably mounted on the right inner wall of the oil-displacing tank.

[0007] The oil droplet filtering device includes a filter frame, an installation frame is fixedly connected to the outer wall of the upper end of the filter frame, a sealing gasket is arranged on the top side of the installation frame, the installation frame and the sealing gasket are connected to the bottom side of the oil removal tank by bolts, a water outlet pipe is fixedly connected to the lower side of the outer wall of the right side of the filter frame, the upper and lower inner walls of the filter frame are fixedly connected to fixing plates, through holes are arranged on the fixing plates, the outer sides of the through holes at the bottom are fixedly connected to bases, tubular ceramic membranes are arranged in the bases, and the tubular ceramic membranes pass through the upper through holes, and an inflation cleaning component is slidably installed on the bottom side of the inside of the filter frame.

[0008] In the above technical solution, tubular ceramic membranes are arranged in the filter frame so that they can process tiny oils and fats in the wastewater, thereby achieving the effect of purifying and recycling the wastewater.

[0009] As a further preferred embodiment of the present technical solution, the oil removal tank includes a box body, a water inlet pipe is connected to the left side bolt on the upper end of the box body, a valve is provided on the water inlet pipe, a water level line positioning plate is fixedly connected to the upper inner wall of the box body, an oil outlet channel is fixedly connected to the right side opening of the box body, and the water level line positioning plate and the oil outlet channel are on the same horizontal line.

[0010] As a further preferred embodiment of the present technical solution, a filter screen is fixedly connected to the right outer surface of the box body, and the filter screen is located below the oil outlet channel.

[0011] In the above technical solution, the filter screen is arranged to separate the grease and suspended matter in the wastewater so that they can be processed separately.

[0012] As a further preferred embodiment of the present technical solution, the toggle assembly includes a rotating rod, which is rotatably connected to the inner wall on the right side of the box body, the outer wall at the front end of the rotating rod is fixedly connected to a gear group, and a driving motor is fixedly connected to the central axis of the gear group, and an installation tube is sleeved on the outer wall of the rotating rod, and a toggle plate is fixedly connected to the outer wall of the installation tube in a circular manner, and the other end of the toggle plate is fixedly connected to an arc plate.

[0013] In the above technical solution, the fan is capable of blowing the grease and suspended matter on the liquid surface to the side of the toggle assembly, and the toggle plate is rotated by the driving motor to push the grease and suspended matter on the liquid surface out of the oil outlet channel, and the arc plate arranged at the other end of the toggle plate can improve the toggle effect.

[0014] As a further preferred embodiment of the present technical solution, the inflation cleaning assembly includes a hollow plate, which is slidably connected to the inner wall below the filter frame, a sleeve is fixedly connected to the air outlet on the top side of the hollow plate, a sealing ring is sleeved on the outer wall of the sleeve, and a cylinder is arranged in the middle of the bottom side of the hollow plate.

[0015] As a further preferred embodiment of the present technical solution, air pipes are fixedly connected to the air inlets at both ends of the bottom side of the hollow plate, and the air pipes are bolted to the external air pump.

[0016] In the above technical solution, an external air pump and a sleeve are extended into the base to blow air into the tubular ceramic membrane to remove pollutants in the membrane pores of the tubular ceramic membrane and improve the filtering effect.

[0017] As a further preferred embodiment of the present technical solution, the tube wall of the tubular ceramic membrane is densely covered with micropores.

[0018] The utility model provides an oil removal device for chemical wastewater, which has the following beneficial effects:

[0019] (1) The utility model installs an oil-prying device, and the fan provided therein can blow the grease and suspended matter on the liquid surface to the vicinity of the prying assembly, and the prying plate is rotated by a driving motor to pry the grease and suspended matter on the liquid surface out of the oil outlet channel, and the arc plate provided at the other end of the prying plate can improve the prying effect, and the filter screen provided therein can separate the prying grease from the suspended matter in the wastewater so that they can be treated separately.

[0020] (2) The utility model uses an oil droplet filtering device, in which a tubular ceramic membrane is arranged in a filter frame, so that it can process tiny oils and fats in wastewater, thereby achieving the effect of purifying and recycling the wastewater. In addition, an air-filled cleaning component is provided which extends into the base through an external air pump and a sleeve to blow air into the tubular ceramic membrane, thereby removing pollutants in the membrane pores of the tubular ceramic membrane and improving the filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of the utility model chemical wastewater oil removal device;

[0022] Figure 2 The utility model is Figure 1 Schematic diagram of the structure on the bottom side;

[0023] Figure 3 The utility model is Figure 1 A schematic diagram of the structure of the toggle assembly;

[0024] Figure 4 The utility model is Figure 2 Schematic diagram of the structure of the oil droplet filtering device;

[0025] Figure 5 The utility model is Figure 4 A schematic diagram of the structure of the inflation cleaning component;

[0026] In the figure: 1. oil removal tank; 2. oil-displacing device; 3. oil droplet filtering device; 11. box body; 12. water inlet pipe; 13. water level positioning plate; 14. oil outlet channel; 15. filter screen; 21. fan; 22. toggle assembly; 221. rotating rod; 222. gear set; 223. driving motor; 224. mounting cylinder; 225. toggle plate; 226. arc plate; 31. filter frame; 32. mounting frame; 33. sealing gasket; 34. water outlet pipe; 35. fixing plate; 36. through hole; 37. base; 38. tubular ceramic membrane; 39. inflation cleaning assembly; 391. hollow plate; 392. sleeve; 393. sealing ring; 394. cylinder; 395. air pipe. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0028] The utility model provides a technical solution: Figure 1 and Figure 2As shown, in the present embodiment, an oil removal device for chemical wastewater comprises an oil removal tank 1, an oil removal device 2 is rotatably installed on the upper end of the oil removal tank 1, an oil droplet filtering device 3 is bolted to the bottom side of the oil removal tank 1, the oil removal tank 1 comprises a box body 11, a water inlet pipe 12 is bolted to the left side of the upper end of the box body 11, a valve is arranged on the water inlet pipe 12, a water level line positioning plate 13 is fixedly connected to the inner wall above the box body 11, an oil outlet channel 14 is fixedly connected to the opening on the right side of the box body 11, and the water level line positioning plate 13 and the oil outlet channel 14 are on the same horizontal line, a filter screen 15 is fixedly connected to the outer surface of the right side of the box body 11, and the filter screen 15 is located below the oil outlet channel 14.

[0029] like Figure 2 and Figure 3 As shown, the oil-pushing device 2 includes a fan 21, which is arranged on the left outer wall of the oil-removing tank 1, and a toggle assembly 22 is rotatably installed on the right inner wall of the oil-removing tank 1. The toggle assembly 22 includes a rotating rod 221, which is rotatably connected to the right inner wall of the box body 11, and a gear set 222 is fixedly connected to the outer wall of the front end of the rotating rod 221. A driving motor 223 is fixedly connected to the central axis of the gear set 222. The outer wall of the rotating rod 221 is sleeved with a mounting cylinder 224, and the outer wall of the mounting cylinder 224 is fixedly connected to a toggle plate 225 in a circumferential manner. The other end of the toggle plate 225 is fixedly connected with an arc plate 226. By installing the oil-push device 2, the fan 21 can blow the grease and suspended matter on the liquid surface to the toggle component 22, and the toggle plate 225 is rotated by driving the motor 223 to push the grease and suspended matter on the liquid surface out of the oil outlet channel 14. The arc plate 226 set at the other end of the toggle plate 225 can improve the toggle effect, and the filter screen 15 can separate the pushed grease from the wastewater suspended matter so that they can be treated separately.

[0030] like Figure 4 and Figure 5As shown, the oil droplet filtering device 3 includes a filter frame 31, the upper outer wall of the filter frame 31 is fixedly connected with a mounting frame 32, the top side of the mounting frame 32 is provided with a sealing gasket 33, the mounting frame 32 and the sealing gasket 33 are connected to the bottom side of the oil tank 1 by bolts, and the lower side of the right outer wall of the filter frame 31 is fixedly connected with a water outlet pipe 34, the upper and lower inner walls of the filter frame 31 are fixedly connected with a fixing plate 35, through holes 36 are arranged on the fixing plate 35, the outer side of the lower through holes 36 are fixedly connected with a base 37, a tubular ceramic membrane 38 is provided in the base 37, and the tubular ceramic membrane 38 passes through the upper through holes 36, and an aeration cleaning component 39 is slidably installed on the bottom side of the filter frame 31, and the aeration cleaning component 39 includes a hollow plate 391, and the hollow plate 391 is slidably connected to the bottom of the filter frame 31 The inner wall and the air outlet on the top side of the hollow plate 391 are fixedly connected with a sleeve 392, and the outer wall of the sleeve 392 is sleeved with a sealing ring 393. A cylinder 394 is arranged in the middle of the bottom side of the hollow plate 391, and air pipes 395 are fixedly connected to the air inlets on the left and right ends of the bottom side of the hollow plate 391. The air pipes 395 are bolted to the external air pump. The wall of the tubular ceramic membrane 38 is densely covered with micropores. The oil bead filtering device 3 is used to arrange the tubular ceramic membrane 38 in the filter frame 31, so that it can process tiny oils and fats in the wastewater, thereby purifying and recycling the wastewater. In addition, the inflation cleaning component 39 is extended into the base 37 through the external air pump and the sleeve 392 to blow air to the tubular ceramic membrane 38 to remove pollutants in the membrane pores of the tubular ceramic membrane 38 and improve the filtering effect.

[0031] The utility model provides an oil removal device for chemical wastewater, and the specific working principle is as follows: chemical wastewater is injected into the box body 11 through the water inlet pipe 12, and the water level positioning plate 13 is set to limit the liquid level and cannot exceed it; the fan 21 is started to blow the grease and suspended matter on the liquid surface to the side of the toggle component 22, and at the same time, the driving motor 223 is started to drive the gear group 222 to rotate, and the rotating rod 221 is driven to rotate, so that the toggle plate 225 pushes the grease and suspended matter on the liquid surface out of the oil outlet channel 14, and passes The grease and suspended solids are separated through the filter 15; the tiny grease in the wastewater is filtered through the tubular ceramic membrane 38 and discharged through the outlet pipe 34; after the oil removal is completed, the cylinder 394 is started to allow the sleeve 392 to extend into the base 37, and the external air pump is connected through the air pipe 395 to blow air into the tubular ceramic membrane 38 to remove the pollutants in the membrane holes of the tubular ceramic membrane 38, and then the bolts on the mounting frame 32 and the sealing gasket 33 are loosened, the filter frame 31 is disassembled, and the accumulated grease is cleaned.

[0032] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A degreasing device for chemical wastewater, comprising a degreasing tank (1), characterized in that: An oil removal device (2) is rotatably mounted on the upper end of the oil removal tank (1), and an oil droplet filtering device (3) is boltedly mounted on the bottom side of the oil removal tank (1); The oil-displacing device (2) comprises a fan (21), wherein the fan (21) is arranged on the left outer wall of the oil-displacing tank (1), and a displacing assembly (22) is rotatably mounted on the right inner wall of the oil-displacing tank (1); The oil droplet filtering device (3) comprises a filter frame (31), the upper outer wall of the filter frame (31) is fixedly connected to a mounting frame (32), the top side of the mounting frame (32) is provided with a sealing gasket (33), the mounting frame (32) and the sealing gasket (33) are connected to the bottom side of the oil removal tank (1) by bolts, the lower side of the right outer wall of the filter frame (31) is fixedly connected to a water outlet pipe (34), the upper and lower inner walls of the filter frame (31) are fixedly connected to a fixing plate (35), through holes (36) are arranged on the fixing plate (35), the outer sides of the through holes (36) at the bottom are fixedly connected to a base (37), a tubular ceramic membrane (38) is provided in the base (37), and the tubular ceramic membrane (38) passes through the upper through hole (36), and an inflation cleaning component (39) is slidably installed on the bottom side of the filter frame (31).

2. The oil removal device for chemical wastewater according to claim 1, characterized in that: The oil removal tank (1) comprises a tank body (11), the left side of the upper end of the tank body (11) being bolted to a water inlet pipe (12), the water inlet pipe (12) being provided with a valve, a water level line positioning plate (13) being fixedly connected to the upper inner wall of the tank body (11), an oil outlet channel (14) being fixedly connected to the right opening of the tank body (11), and the water level line positioning plate (13) and the oil outlet channel (14) being on the same horizontal line.

3. The oil removal device for chemical wastewater according to claim 2, characterized in that: A filter screen (15) is fixedly connected to the right outer surface of the box body (11), and the filter screen (15) is located below the oil outlet channel (14).

4. The oil removal device for chemical wastewater according to claim 1, characterized in that: The toggle assembly (22) comprises a rotating rod (221), the rotating rod (221) being rotatably connected to the right inner wall of the box body (11), the front end outer wall of the rotating rod (221) being fixedly connected to a gear set (222), the central axis of the gear set (222) being fixedly connected to a driving motor (223), the outer wall of the rotating rod (221) being sleeved with a mounting tube (224), the outer wall of the mounting tube (224) being fixedly connected to a toggle plate (225) in a circumferential manner, and the other end of the toggle plate (225) being fixedly connected to an arc-shaped plate (226).

5. The oil removal device for chemical wastewater according to claim 1, characterized in that: The inflation cleaning assembly (39) comprises a hollow plate (391), the hollow plate (391) being slidably connected to the inner wall below the filter frame (31), a sleeve (392) being fixedly connected to the air outlet on the top side of the hollow plate (391), a sealing ring (393) being sleeved on the outer wall of the sleeve (392), and a cylinder (394) being arranged in the middle of the bottom side of the hollow plate (391).

6. The oil removal device for chemical wastewater according to claim 5, characterized in that: Air pipes (395) are fixedly connected to the air inlets at both the left and right ends of the bottom side of the hollow plate (391), and the air pipes (395) are bolted to the external air pump.

7. The oil removal device for chemical wastewater according to claim 1, characterized in that: The wall of the tubular ceramic membrane (38) is densely covered with micropores.

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