Automatic control device for oil-water separation treatment

Abstract

The application discloses an automatic control device for oil-water layering treatment, and particularly relates to the technical field of wastewater treatment, which comprises a control treatment box, a main separation control cavity, a secondary separation control cavity and a drainage cavity are arranged in the control treatment box, a filter blocking assembly is arranged in the main separation control cavity, the filter blocking assembly comprises an upper filter blocking piece and a lower filter blocking piece, a flat channel is formed between the upper filter blocking piece and the lower filter blocking piece, the flat channel is arranged corresponding to a water inlet pipe, the upper filter blocking piece and the lower filter blocking piece are both filter structures, and are used for blocking the waste residue in the wastewater, and an aerator is arranged at the bottom of the lower filter blocking piece, and the aerator is used for emitting bubbles in the wastewater. With the help of the micro bubbles emitted by the aerator, the micro bubbles pass through the waste residue in the process of floating, the micro bubbles collide with the waste residue particles, and the oil on the surface of the waste residue particles is mixed, so that the oil material is accelerated to float, and the separation efficiency of the oil material is improved.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and more specifically, to an automatic control device for oil-water separation treatment. Background Technology

[0002] In many industrial production processes, a large amount of wastewater is generated due to production or equipment cleaning. In order to avoid wastewater pollution and to recover some of the recyclable resources in the wastewater, a series of treatments are required for the generated wastewater.

[0003] In some industrial production processes, the wastewater generated also contains oily substances (or other similar oily substances that are insoluble in water and have a density less than water). For example, some oily organic substances are used in the production of some chemical products, as well as oily formulations and lubricating oils used in molding dies during the production of rubber products. These oily substances are immiscible with water, and in actual treatment, the oil needs to be separated and treated separately.

[0004] Since the density of oily substances is less than that of water, they have the characteristic of floating in water. Therefore, in common solutions, the wastewater is often left to stand or a separation tank is used to allow the wastewater to flow slowly, thereby causing the oily substances to float to the surface and forming a stratified control system, so as to facilitate the separate recovery of the oily substances.

[0005] However, in some production and processing, wastewater is mostly generated from cleaning processes. Therefore, the wastewater will contain some solid waste residue. These particles can be separated from the wastewater through sedimentation. However, since the waste residue is mainly granular and its surface is not smooth, oily substances will be pre-adhered to the surface of the waste residue particles during the production process. Because there is relatively little oily substance on its surface, it is not easy to separate in the wastewater and will gradually settle with the waste residue particles. As the sediment layer gradually thickens, the oily substances at the bottom of the sediment layer are even more difficult to separate, thereby reducing the separation efficiency of oily substances. Summary of the Invention

[0006] The present invention provides an automatic control device for oil-water separation treatment, which aims to solve the problem that: in existing wastewater treatment, there are some solid waste residues in the wastewater, and oily substances are adhered to the surface of the waste residue particles, which are not easy to separate in the wastewater and gradually settle with the waste residue particles, reducing the separation efficiency of oily substances.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an automatic control device for oil-water separation treatment, comprising a control processing box, wherein the control processing box is provided with a main separation control chamber, a secondary separation control chamber and a drainage chamber, wherein a water inlet pipe is provided on the main separation control chamber and a drain pipe is provided on the drainage chamber, wherein an oil storage chamber is provided at the top of the main separation control chamber and the secondary separation control chamber, wherein a filter assembly is provided in the main separation control chamber, the filter assembly comprising an upper filter baffle and a lower filter baffle, wherein a flat channel is formed between the upper filter baffle and the lower filter baffle, the flat channel being arranged corresponding to the water inlet pipe, wherein both the upper filter baffle and the lower filter baffle are filtration structures used to block waste residue in the wastewater from passing through, and an aerator is provided at the bottom of the lower filter baffle for generating bubbles in the wastewater.

[0008] Preferably, the upper filter baffle is in contact with the inner wall of the main separation control chamber on all four sides and forms a blockage, while the lower filter baffle is separated from the inner wall of the main separation control chamber on the side facing away from the water inlet pipe and forms a falling channel.

[0009] Preferably, both the upper and lower filter elements are belt-type filter elements. The belt-type filter element consists of a filter belt and a belt support roller. The filter belt and the belt support roller form a belt-type motion structure. Each set of belt-type filter elements has at least two sets of belt support rollers, and one set of belt support rollers is connected to a drive device for driving the belt support rollers to rotate.

[0010] Preferably, the belt-type moving structure formed by the upper filter baffle is provided with an edge sealing seat at one end of the inlet pipe and at one end of the upstream channel, and the belt-type moving structure formed by the lower filter baffle is provided with an edge sealing seat at one end of the inlet pipe. The edge sealing seat and the part of the filter baffle belt corresponding to the belt support roller are fitted together.

[0011] Preferably, the filter belt is also provided with multiple sets of baffle plates. The baffle plates move with the filter belt, and the direction of movement of the baffle plates is to move gradually away from the inlet pipe in the flat channel area.

[0012] Preferably, the slag baffle is slidably mounted on the filter belt, and a guide baffle is provided on the inner side of the filter belt. The guide baffle is fixedly installed in the main separation control chamber. The area of ​​the flat channel corresponding to the guide baffle is the ejection guide part. When the slag baffle is located on the inner side of the filter belt and slides in contact with the ejection guide part of the guide baffle, the slag baffle is ejected outward by the guide baffle. The edge sealing seat is provided with a tapering arc-shaped guide groove at the entry area of ​​the slag baffle. When the slag baffle enters the edge sealing seat, the tapering arc-shaped guide groove squeezes the outer end of the slag baffle, so that the slag baffle is pressed into the inner side of the filter belt.

[0013] Preferably, a scraper is fixedly installed inside the edge sealing seat at the end of the upper filter block away from the water inlet pipe. The scraper is located above the gradually tapering arc-shaped guide groove in the edge sealing seat.

[0014] Preferably, an upstream channel is provided between the main separation control chamber and the secondary separation control chamber, the bottom of the drainage chamber is connected to the secondary separation control chamber, an oil drain pipe is provided on the oil storage chamber, a hydrophobic membrane assembly is provided on the top of the main separation control chamber and the secondary separation control chamber, and the inlet pressure of the water inlet pipe is greater than the drainage pressure of the drain pipe.

[0015] Preferably, the hydrophobic membrane assembly has an upper protrusion at the position corresponding to the main separation control chamber, and an air extraction pipe is fixedly installed on the top of the control processing box at the position corresponding to the upper protrusion. The air extraction pipe is connected to the air extraction equipment through a pipeline, and the air extraction equipment forms a negative pressure in the oil storage chamber during the air extraction process.

[0016] Preferably, a floating particle layer is provided at the top of the main separation control chamber. The floating particle layer is composed of several floating particles, which are composed of hollow spheres. Multiple sets of flexible rods are provided on the outer surface of the hollow spheres.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. This invention utilizes microbubbles emitted by an aerator. As the bubbles rise, they pass through the waste residue. The microbubbles collide with the waste residue particles and mix with the residual oil on the surface of the waste residue particles, accelerating the rise of the oil. Meanwhile, the waste residue cannot pass through the upper filter baffle, thus separating the waste residue from the oil on its surface. This improves the separation efficiency of oil, reduces subsequent treatment steps, and increases the treatment efficiency of wastewater.

[0019] 2. This invention uses a hydrophobic membrane to block water, preventing water from passing through the hydrophobic membrane group, thereby making the stratification of oil and water more obvious. At this time, the oil can be discharged directly through the oil drain pipe without worrying about wastewater being discharged together. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the internal structure of the control processing box of the present invention;

[0022] Figure 3 This is a diagram showing the positional relationship between the oil outlet pipe and the oil storage chamber of the present invention;

[0023] Figure 4 This is a schematic diagram of the internal structure of the control and processing box when using belt-type filter elements in this invention;

[0024] Figure 5 This is a schematic diagram illustrating the oil-water separation state during the use of this invention;

[0025] Figure 6 This is a schematic diagram of the structure of the present invention after adding a slag-blocking plate to the filter belt;

[0026] Figure 7 This is a schematic diagram showing the operating state of the slag baffle plate of the present invention;

[0027] Figure 8 This is a schematic diagram showing the mating position between the guide baffle and the slag baffle of the present invention.

[0028] Figure 9 For the present invention Figure 7 Enlarged view of the A-section structure;

[0029] Figure 10 This is a schematic diagram of the composition of the floating particle layer of the present invention;

[0030] Figure 11 This is a schematic diagram of the overall structure of a single floating particle of the present invention.

[0031] In the diagram: 1. Control and processing box; 11. Main separation control chamber; 111. Inlet pipe; 112. Sedimentation zone; 12. Secondary separation control chamber; 13. Drainage chamber; 131. Drainage pipe; 14. Oil storage chamber; 141. Oil discharge pipe; 15. Upstream channel; 2. Filter assembly; 201. Upper filter baffle; 202. Lower filter baffle; 203. Flat channel; 21. Fixed plate filter baffle; 22. Belt filter baffle; 221. Filter belt; 222. Belt support roller; 223. Edge sealing seat; 224. Slag baffle; 225. Guide baffle; 226. Slag scraper; 3. Aerator; 4. Hydrophobic membrane assembly; 41. Upper protrusion; 5. Air extraction pipe; 6. Floating particle layer; 61. Floating particles; 601. Hollow sphere; 602. Flexible rod. Detailed Implementation

[0032] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, features described in some examples may be combined in other examples.

[0033] Refer to the instruction manual appendix Figure 1 and Figure 2An automatic control device for oil-water separation treatment includes a control processing box 1. The control processing box 1 contains a main separation control chamber 11, a secondary separation control chamber 12, and a drain chamber 13. An upstream channel 15 is provided between the main separation control chamber 11 and the secondary separation control chamber 12. The bottom of the drain chamber 13 communicates with the secondary separation control chamber 12. A water inlet pipe 111 is provided on the main separation control chamber 11, and a drain pipe 131 is provided on the drain chamber 13. An oil storage chamber 14 is provided at the top of the main separation control chamber 11 and the secondary separation control chamber 12. (Refer to the attached instruction manual.) Figure 3 An oil drain pipe 141 is provided on the oil storage chamber 14.

[0034] The oil storage chamber 14 and the drainage chamber 13 are relatively independent. Multiple sets of secondary separation control chambers 12 can be set. Each secondary separation control chamber 12 is separated by an upper flow channel 15. The upper flow channel 15 consists of two baffles of different heights. The bottom of the two baffles is close to the main separation control chamber 11 and the top of the two baffles is away from the main separation control chamber 11 and the outlet is the upper flow channel 15. This makes the upper flow channel 15 form an upward flow channel, thereby increasing the flow distance of wastewater in the control treatment box 1. Multiple sets of secondary separation control chambers 12 can also be used as other treatment chambers. The water inlet pipe 111 is set on the side of the main separation control chamber 11 away from the upper flow channel 15.

[0035] In addition, a filter assembly 2 is provided in the main separation control chamber 11. The filter assembly 2 includes an upper filter baffle 201 and a lower filter baffle 202. A flat channel 203 is formed between the upper filter baffle 201 and the lower filter baffle 202. The flat channel 203 is set corresponding to the water inlet pipe 111. Both the upper filter baffle 201 and the lower filter baffle 202 are filtration structures used to block the waste residue in the wastewater from passing through. An aerator 3 is provided at the bottom of the lower filter baffle 202. The aerator 3 is used to generate microbubbles (usually 20–80 μm) in the wastewater and make the microbubbles float upward. A sedimentation zone 112 is formed below the lower filter baffle 202.

[0036] It should be noted that the upper filter baffle 201 is in contact with the inner wall of the main separation control chamber 11 on all four sides and forms a blockage. The lower filter baffle 202 is separated from the inner wall of the main separation control chamber 11 on the side facing away from the water inlet pipe 111 (i.e. the side facing the upper flow channel 15) and forms a falling channel. The other three sides of the lower filter baffle 202 are in contact with the inner wall of the main separation control chamber 11 and form a blockage. After the waste flows through the flat channel 203, it falls through the falling channel between the lower filter baffle 202 and the main separation control chamber 11.

[0037] In actual use, wastewater is injected into the control and treatment box 1 through the inlet pipe 111. After passing through the main separation control chamber 11, the secondary separation control chamber 12, and the drainage chamber 13, the wastewater is discharged through the drainage pipe 131. When the wastewater passes through the main separation control chamber 11 and the secondary separation control chamber 12, the oily substances in the wastewater gradually float to the surface (mainly in the area of ​​the main separation control chamber 11) and accumulate in the oil storage chamber 14, thus forming oil-water stratification control of the wastewater. When the wastewater enters the main separation control chamber 11, it needs to pass through the flat channel 203 first, which carries the waste residue through the flat channel 203. Then, with the help of the microbubbles emitted by the aerator 3, the microbubbles pass through the waste residue during the process of the bubbles rising. The microbubbles collide with the waste residue particles and mix with the oil residue on the surface of the waste residue particles, accelerating the rise of the oily substances. The waste residue cannot pass through the upper filter baffle 201, thus forming the separation of the waste residue and the oily substances on its surface, thereby improving the separation efficiency of oily substances, reducing subsequent treatment processes, and improving the treatment efficiency of wastewater.

[0038] It should be noted that the aerator 3 mentioned above is a microbubble generator commonly used in the air flotation method. The bubble accelerates the classification and floating of oily substances, which is also a basic principle of the air flotation method. At the same time, the bubbles collide with the waste particles from bottom to top, which will also create a washing-like effect, thereby helping to improve the separation of oily substances on the surface of the waste.

[0039] Furthermore, a hydrophobic membrane assembly 4 is installed at the top of the main separation control chamber 11 and the secondary separation control chamber 12. The main body of the hydrophobic membrane assembly 4 is a hydrophobic membrane, which is installed in the control processing box 1 through a corresponding mounting bracket. The hydrophobic membrane blocks water. In actual use, oil and gas can pass upward through the hydrophobic membrane assembly 4, while water is blocked by the hydrophobic membrane, making it impossible for water to pass through the hydrophobic membrane assembly 4. This makes the separation of oil and water more obvious. At this time, the oil can be discharged directly through the oil drain pipe 141 without worrying about wastewater being discharged together. In addition, in the actual treatment process, the water pressure in the control processing box 1 can be relatively increased by adjusting the inlet water pressure of the inlet pipe 111 and the drain water pressure of the drain pipe 131, thereby ensuring that the water can fully contact the hydrophobic membrane assembly 4 upward, thus squeezing all the oil to the top of the hydrophobic membrane assembly 4 and improving the separation effect.

[0040] In the above embodiments, both the upper filter baffle 201 and the lower filter baffle 202 can be fixed plate filter baffles 21, that is, fixed mesh plates are directly installed in the main separation control chamber 11. Filter holes are opened on the mesh plates, and the upper and lower mesh plates are set at an angle to facilitate the flow of waste residue into the downward channel and to settle in the sedimentation zone 112 (there is also a sedimentation effect in each separation control chamber 12), and then it is centrally processed.

[0041] However, for some waste residue particles with relatively small particle size, the aforementioned filter pores are also relatively small. In this case, using a fixed plate filter element 21, due to the relatively fixed structure, makes the filter pores prone to clogging by small waste residue particles, thus affecting the passage efficiency of bubbles and oily substances. Therefore, please refer to the appendix of the instruction manual. Figure 4 and Figure 2 The upper filter baffle 201 and the lower filter baffle 202 can also be belt-type filter baffles 22. The belt-type filter baffle 22 consists of a filter baffle belt 221 and a belt support roller 222. The filter baffle belt 221 and the belt support roller 222 form a belt-type motion structure. At least two sets of belt support rollers 222 are provided in each set of belt-type filter baffles 22, and one set of belt support rollers 222 is connected to a drive device (e.g., a motor). The drive device drives the belt support roller 222 to rotate, thereby driving the movement of the filter baffle belt 221.

[0042] It should be noted that the combination of the filter belt 221 and the belt support roller 222 can be specifically configured according to the actual situation. Since the area of ​​the filter belt 221 corresponding to the belt support roller 222 has an arc segment, and the two side edges of the belt support roller 222 can directly contact the inner wall of the main separation control chamber 11 (refer to the attached manual). Figure 8 Therefore, when it is necessary to seal the upper filter baffle 201 and the lower filter baffle 202, it is necessary to set up a corresponding structure to seal them. For example, the belt-type moving structure formed by the upper filter baffle 201 is provided with an edge sealing seat 223 at one end of the water inlet pipe 111 and at one end of the upstream channel 15. The belt-type moving structure formed by the lower filter baffle 202 is provided with an edge sealing seat 223 at one end of the water inlet pipe 111. The edge sealing seat 223 and the part of the filter belt 221 corresponding to the belt support roller 222 fit together to form a sealing and isolation of the arc-shaped part of the belt support roller 222.

[0043] The filter belt 221 can be made of filter paper or filter cloth, but considering strength requirements, a rubber belt can be used as the main body of the filter belt 221. Several holes are set on the rubber belt, and filter screens or filter cloths are installed in the holes. In actual use, the filter belt 221 can be cyclically controlled to move, thereby changing the position of the filter holes of the filter belt 221 continuously, so that the filter holes are not easily blocked. Even if small waste particles occasionally get stuck in the filter holes and cause blockage, the upper and lower parts of the filter belt 221 can be continuously switched when the filter belt 221 is driven to move. For example, in the upper filter baffle 201, when the blocked filter hole at the bottom is switched to the top, the air bubbles flowing from bottom to top will also carry the blocked waste particles when passing through the filter hole, thus forming a self-cleaning effect on the filter belt 221.

[0044] In the above embodiments, if the wastewater volume is large at a certain stage, it is necessary to continuously and rapidly control the wastewater to enter the control treatment tank 1 for treatment. At this time, the wastewater carrying the waste residue passes through the flat channel 203 at a relatively fast speed, resulting in insufficient time for microbubbles to facilitate the separation of oily substances on the surface of the waste residue particles. Therefore, this embodiment also makes the following improvements to the belt filter element 22, specifically referring to the appendix of the instruction manual. Figure 6 and Figure 7 Multiple sets of baffle plates 224 are also provided on the filter belt 221. The baffle plates 224 move with the filter belt 221, and the direction of movement of the baffle plates 224 is to gradually move away from the inlet pipe 111 in the flat channel 203 area. That is to say, in actual use, the flow direction of the baffle plates 224 is the same as that of the wastewater input into the main separation control chamber 11. However, the movement speed of the baffle plates 224 is less than the flow rate of the wastewater input into the inlet pipe 111, so that the baffle plates 224 do not obstruct the input of wastewater by a large amount. The movement speed of baffle plate 4 is relatively low, so it will still have a certain obstruction effect on the waste residue particles in the wastewater. The wastewater can flow directly away from the surface of baffle plate 224. Therefore, baffle plate 224 can increase the passage time of waste residue particles in flat channel 203 to ensure the full treatment of oily substances. At the same time, under the guidance of baffle plate 224, the wastewater flow generates a certain degree of turbulent flow in flat channel 203, which helps the waste residue particles to collide with each other, thereby further improving the separation efficiency of oily substances.

[0045] Furthermore, while the slag baffle 224 effectively blocks waste residue, some residue may adhere to its surface during operation and is difficult to remove. Over time, this accumulation can affect its performance. Therefore, please refer to the attached instruction manual. Figure 7 and Figure 8The baffle plate 224 is slidably mounted on the filter belt 221. A guide baffle 225 is provided on the inner side of the filter belt 221. The guide baffle 225 is fixedly installed in the main separation control chamber 11. The area of ​​the guide baffle 225 corresponding to the flat channel 203 is the ejection guide part. When the baffle plate 224 is located on the inner side of the filter belt 221 and slides in contact with the ejection guide part of the guide baffle 225, the baffle plate 224 is ejected outward by the guide baffle 225. The two ends of the guide baffle 225 are provided with gradual transition parts so that the baffle plate 224 gradually contacts the guide baffle 225. At the same time, the edge sealing seat 223 is provided with a tapered arc-shaped guide groove at the entry area of ​​the baffle plate 224, so that the baffle plate 224 moves with the filter belt 221 and needs to enter the edge sealing area. When the baffle plate 224 is inserted into the filter belt 221, under the guidance of the tapering arc guide groove, the outer end of the baffle plate 224 is squeezed, thereby pressing the baffle plate 224 into the inner side of the filter belt 221. During this process, the baffle plate 224 and the filter belt 221 can slide relative to each other, thereby preventing the attached waste particles from falling off the baffle plate 224. Especially at the edge sealing seat 223 at the end of the upper filter baffle 201 away from the water inlet pipe 111, when the baffle plate 224 is inserted into the filter belt 221, the scraped waste can fall directly from the falling channel into the sedimentation zone 112 for sedimentation. At the same time, after the baffle plate 224 is inserted into the filter belt 221, the edge sealing seat 223 can fully fit with the arc part of the filter belt 221, thereby maintaining effective sealing and isolation.

[0046] In addition, please refer to the appendix to the instruction manual. Figure 9 A scraper 226 is fixedly installed inside the edge sealing seat 223 at the end of the upper filter baffle 201 away from the water inlet pipe 111. The scraper 226 is located above the gradually tapering arc guide groove in the edge sealing seat 223. That is to say, at the location of the scraper 226, the baffle 224 has been completely retracted into the inside of the filter belt 221, and will not affect the scraping of debris on the surface of the filter belt 221. As the filter belt 221 moves gradually, the waste scraped by the scraper 226 can also gradually fall downward and fall into the sedimentation zone 112 through the falling channel.

[0047] In the above embodiments, air flotation is mainly used to accelerate the separation of oily substances. However, since the oily substances are mainly in the upper layer, the air bubbles can also pass through the oil layer during their ascent, easily causing large-scale sloshing of the oil layer. Therefore, please refer to the appendix of the instruction manual. Figure 4 and Figure 5The hydrophobic membrane group 4 is provided with an upper protrusion 41 at the position corresponding to the main separation control chamber 11. The control processing box 1 is a sealed structure, that is, the oil storage chamber 14 is relatively sealed. The top of the control processing box 1 is fixedly installed with an air extraction pipe 5 at the position corresponding to the upper protrusion 41. The air extraction pipe 5 is connected to the air extraction equipment through a pipeline. During the air extraction process, the air extraction equipment forms a negative pressure in the oil storage chamber 14 (that is, the air extraction pressure of the air extraction equipment is greater than the pressure of the gas output by the aerator 3).

[0048] Specifically, as mentioned above, the water inside the main separation control chamber 11 can be pressurized by adjusting the pressure difference between the inlet pipe 111 and the outlet pipe 131, thereby filling the main separation control chamber 11 and ensuring full contact with the hydrophobic membrane assembly 4. (Refer to the appendix of the instruction manual.) Figure 5 This allows the oil layer to accumulate in the top area of ​​the secondary separation control chamber 12. In other words, the oil layer thickness at the top of the upper protrusion 41 is relatively small, thereby reducing the impact of air bubbles on the oil layer. Under the suction action of the suction pipe 5, the air bubbles can flow upward faster, thereby improving the carrying effect of oily substances. In addition, for wastewater with odor, it can also prevent the odor from spreading and improve the treatment effect.

[0049] Further, please refer to the appendix to the instruction manual. Figure 6 and Figure 10 The top of the main separation control chamber 11 is provided with a floating particle layer 6, which is composed of several floating particles 61. Under the action of buoyancy, the floating particles 61 gather upwards towards the water and then converge below the hydrophobic film group 4 and the upper protrusion 41. The surface of the floating particles 61 is provided with an oleophobic coating. Since the floating particles 61 are piled up below the upper protrusion 41, when the bubbles rise to the floating particle layer 6, the disturbance effect on the water flow will be relatively slowed down (the floating particles 61 will also move, thus forming a corresponding buffer to offset the water fluctuation), thereby relatively reducing the disturbance of water to the upper oil layer. In addition, since the floating particles 61 are in motion during this process, in actual use, the floating particles 61 will also randomly collide with the hydrophobic film of the hydrophobic film group 4 and the upper protrusion 41, thereby causing the hydrophobic film to shake to a certain extent, preventing the hydrophobic film from being blocked by some floating impurities.

[0050] Further, please refer to the appendix to the instruction manual. Figure 11The floating particles 61 are composed of hollow spheres 601. Multiple sets of flexible rods 602 are provided on the outer surface of the hollow spheres 601. By setting the flexible rods 602, the effective passage space between two adjacent floating particles 61 is increased, avoiding the impact on the floating of oily substances. In addition, for some wastewater containing floating impurities, even if some floating impurities (such as rubber shavings, fibers, etc.) float past the upper filter baffle 201, they can be blocked by the flexible rods 602 and will not directly accumulate at the bottom of the hydrophobic membrane, thus affecting its working performance. As the bubbles rise, the state of the floating particles 61 is not fixed, and the floating particle layer 6 is not prone to forming an overall blockage. During the periodic cleaning of the control and treatment box 1, the hydrophobic membrane is replaced and the floating particles 61 are cleaned accordingly, so that the device can be used for a long time.

[0051] The embodiments of this example have been described above. However, this example is not limited to the specific implementation methods described above. The specific implementation methods described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms based on the guidance of this example, and all of them are within the protection scope of this example.

Claims

1. An automatic control device for oil-water separation treatment, comprising a control treatment box (1), a main separation control cavity (11), a secondary separation control cavity (12) and a drainage cavity (13) are arranged in the control treatment box (1), a water inlet pipe (111) is arranged on the main separation control cavity (11), a drainage pipe (131) is arranged on the drainage cavity (13), and an oil storage cavity (14) is arranged at the top of the main separation control cavity (11) and the secondary separation control cavity (12). The main separation control cavity (11) is provided with a filter blocking assembly (2), the filter blocking assembly (2) comprises an upper filter blocking piece (201) and a lower filter blocking piece (202), a flat channel (203) is formed between the upper filter blocking piece (201) and the lower filter blocking piece (202), the flat channel (203) is provided corresponding to the water inlet pipe (111), the upper filter blocking piece (201) and the lower filter blocking piece (202) are both filter structures for blocking waste residues in wastewater, and an aerator (3) is arranged at the bottom of the lower filter blocking piece (202), the aerator (3) is used for emitting bubbles in the wastewater, and a sedimentation zone (112) is formed below the lower filter blocking piece (202); The upper filter blocking piece (201) is in contact with the inner wall of the main separation control cavity (11) and forms a blockage around the upper filter blocking piece (201), and the lower filter blocking piece (202) is arranged separately from the inner wall of the main separation control cavity (11) on the side away from the water inlet pipe (111) and forms a falling channel; The upper filter blocking piece (201) and the lower filter blocking piece (202) are both belt type filter blocking pieces (22), the belt type filter blocking piece (22) is composed of a filter blocking belt (221) and a belt support roller (222), the filter blocking belt (221) and the belt support roller (222) form a belt type movement structure, the belt support roller (222) in each group of belt type filter blocking pieces (22) is provided in at least two groups, and one of the groups of belt support rollers (222) is connected to a driving device, and the driving device is used to drive the belt support roller (222) to rotate; A plurality of residue blocking plates (224) are further arranged on the filter blocking belt (221), the residue blocking plates (224) move with the filter blocking belt (221), and the corresponding movement direction of the residue blocking plates (224) is to gradually move away from the water inlet pipe (111) in the flat channel (203) area, and the movement speed of the residue blocking plates (224) is less than the flow rate of the wastewater input by the water inlet pipe (111).

2. The automatic control device for oil-water separation treatment according to claim 1, characterized in that: The belt type movement structure formed by the upper filter blocking piece (201) is provided with an edge blocking seat (223) corresponding to one end of the water inlet pipe (111) and one end of the upper flow channel (15), the belt type movement structure formed by the lower filter blocking piece (202) is provided with an edge blocking seat (223) corresponding to one end of the water inlet pipe (111), and the edge blocking seat (223) and the part of the filter blocking belt (221) corresponding to the belt support roller (222) are mutually matched and adapted.

3. The automatic control device for oil-water separation treatment according to claim 2, characterized in that: The slag baffle (224) is slidingly installed on the filter baffle belt (221), an inner side of the filter baffle belt (221) is provided with a guide baffle (225), the guide baffle (225) is fixedly installed in the main separation control cavity (11), a region of the guide baffle (225) corresponding to the flat channel (203) is an ejection guide part, when the slag baffle (224) is in sliding contact with the ejection guide part of the guide baffle (225) at an inner side part of the filter baffle belt (221), the slag baffle (224) is ejected outward by the guide baffle (225), the edge sealing seat (223) is provided with a gradually tapering arc-shaped guide groove at a region corresponding to the entry of the slag baffle (224), when the slag baffle (224) enters the edge sealing seat (223), the gradually tapering arc-shaped guide groove extrudes the outer end of the slag baffle (224), so that the slag baffle (224) is pressed into the inner side of the filter baffle belt (221).

4. The automatic control device for oil-water separation treatment according to claim 3, characterized in that: The edge sealing seat (223) of the upper filter baffle (201) is fixedly installed with a slag scraping plate (226) at an inner side of an end of the edge sealing seat (223) away from the water inlet pipe (111), the slag scraping plate (226) is located above the gradually tapering arc-shaped guide groove in the edge sealing seat (223).

5. An automatic control device for oil-water separation treatment according to claim 4, characterized in that: An upflow channel (15) is arranged between the main separation control cavity (11) and the secondary separation control cavity (12), a bottom of the drainage cavity (13) is communicated with the secondary separation control cavity (12), an oil discharge pipe (141) is arranged on the oil storage cavity (14), the main separation control cavity (11) and the secondary separation control cavity (12) are provided with a hydrophobic membrane group (4) at a top part, a water inlet pressure of the water inlet pipe (111) is greater than a drainage pressure of the drainage pipe (131).

6. An automatic control device for oil-water separation treatment according to claim 5, characterized in that: The hydrophobic membrane group (4) is provided with an upper convex part (41) at a position corresponding to the main separation control cavity (11), the control processing box (1) is fixedly installed with an air extraction pipe (5) at a top part corresponding to the position of the upper convex part (41), the air extraction pipe (5) is connected to an air extraction device through a pipeline, and the air extraction device forms a negative pressure in the oil storage cavity (14) during air extraction.

7. An automatic control device for oil-water separation treatment according to claim 6, characterized in that: A floating particle layer (6) is arranged at a top part of the main separation control cavity (11), the floating particle layer (6) is composed of a plurality of floating particles (61), the floating particles (61) are composed of hollow balls (601), and the hollow balls (601) are provided with a plurality of soft rods (602) on an outer surface.

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