Anti-blocking cyclone dissolved air device

Abstract

The utility model provides a kind of anti-blocking cyclone dissolved air unit, vertical hydrocyclone and the vertical air float cylinder body connected in the bottom end of hydrocyclone, and hydrocyclone is connected with cyclone inlet pipe, and cyclone inlet pipe is connected with the treatment box of preventing blockage, and the side of treatment box is equipped with sewage advanced pipe, and treatment box is internally provided with multiple filter frames, the utility model has the beneficial effects as follows, when filtering impurities, subsequent cooperation lower pressure assembly can be carried out extrusion to filtered impurities, so that sewage and oil contained in its impurities are extruded, and the extruded sewage and oil are discharged into hydrocyclone again, to carry out subsequent cyclone dissolved air processing work, when sewage treatment equipment is not used, the impurities extruded at the bottom of treatment box are discharged and treated by the cleaning assembly arranged, to ensure that subsequent impurities can be effectively collected.

Description

Technical Field

[0001] This utility model is an anti-clogging cyclone dissolved air device, belonging to the field of wastewater treatment. Background Technology

[0002] With the rapid expansion of industry, especially the petrochemical industry, the discharge of oily wastewater has increased dramatically, and its potential threat to the environment has become increasingly prominent. If this type of wastewater is discharged directly into the natural environment without proper treatment, it will not only seriously pollute the soil, groundwater, and surface water bodies, but may also further pollute drinking water sources through infiltration, causing profound damage to the balance of the ecosystem. Oil pollutants in water bodies will hinder the dissolution of oxygen, affect the respiration and survival of aquatic organisms, and thus destroy the stability and diversity of the entire aquatic ecosystem. More seriously, oily wastewater often carries crude oil, suspended particulate matter, heavy metals, and other complex mineral impurities. Once these harmful substances enter the food chain, they may pose a direct threat to human health through cumulative effects, increase the risk of diseases in humans and animals, and even cause public health events such as food poisoning. Therefore, the treatment of oily wastewater has become an important and indispensable part of current environmental protection work.

[0003] For example, in a vertical hydrocyclone and cyclone flotation combined device with patent number CN202222350066.6, the patent combines a vertically arranged hydrocyclone with a vertically arranged cyclone flotation mechanism to achieve further separation of oil, suspended solids and water by the cyclone flotation mechanism. In addition, by combining the hydrocyclone and cyclone flotation, the two process flows are effectively combined, saving intermediate connecting process links, making the equipment layout more compact, saving space, and making it more suitable for occasions with small footprints, such as offshore platforms and FPSO mobile platforms.

[0004] However, the hydrocyclone described in the aforementioned patent has an inlet, meaning that sewage enters the hydrocyclone through the inlet for subsequent sewage treatment. But when using an oily sewage treatment device, the oily sewage directly enters the hydrocyclone. Since the sewage contains relatively large impurities, these impurities are often difficult to be fully adsorbed and effectively floated by the tiny bubbles. Because these large particles are heavy and have a relatively limited surface area, they are not easy to form a stable aggregate with a large number of dispersed bubbles. Therefore, they are easily missed during the flotation process and eventually settle at the bottom of the device. Over time, the accumulation of larger impurities at the bottom will gradually increase, not only occupying the effective treatment space but also potentially causing blockages inside the treatment space, thus affecting the normal operation and efficiency of the entire treatment system. Therefore, this utility model, in conjunction with the aforementioned patent, proposes a hydrocyclone dissolved air device that can perform anti-blocking treatment in advance. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an anti-clogging cyclone dissolved gas device.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: A clog-resistant hydrocyclone dissolved air device includes a vertical hydrocyclone and a vertical air flotation cylinder connected to the bottom of the hydrocyclone. The hydrocyclone is connected to a hydrocyclone inlet pipe, and a treatment box for preventing clogging is connected to the hydrocyclone inlet pipe. A sewage inlet pipe is provided on one side of the treatment box. The treatment box contains multiple filter frames, each with a filter screen on its inner side. The treatment box is equipped with a pressure component and a cleaning component.

[0007] Furthermore, the hydrocyclone is also connected to a hydrocyclone oil drain pipe and a hydrocyclone water outlet pipe. The vertical air flotation cylinder is equipped with an air flotation outlet, a lower connecting pipe for the dissolved air pump, and an upper connecting pipe for the dissolved air pump. The lower connecting pipe for the dissolved air pump is connected to the inlet of the dissolved air pump, and the upper connecting pipe for the dissolved air pump is connected to the outlet. A sludge discharge and venting port is provided at the bottom of the hydrocyclone inlet pipe.

[0008] Furthermore, each filter frame is fixedly equipped with a mounting plate at its top, and the mounting plate and the filter frame form a T-shaped frame.

[0009] Furthermore, the T-shaped frame is an insert type, where the filter frame is inserted into the treatment box. A rubber sealing gasket is attached to the end face of the mounting plate facing the filter frame, and the mounting plate is fixed to the top of the treatment box with screws.

[0010] Furthermore, the pressing assembly includes a mounting frame mounted on the processing box, a hydraulic cylinder fixedly mounted on the top of the mounting frame, a pressing plate connected to the output rod of the hydraulic cylinder, and multiple through rods penetrating into the interior of the processing box at the bottom of the pressing plate.

[0011] Furthermore, multiple descending plates are fixedly installed at the bottom of the through rod, and the descending plates are arranged between adjacent filter frames.

[0012] Furthermore, a secondary hydraulic cylinder is fixedly installed on the back of the mounting frame. The output rod of the secondary hydraulic cylinder is connected to a push plate. Multiple secondary through rods that penetrate into the interior of the processing box are fixedly installed on the push plate. A cleaning plate is fixedly installed on the other end of each secondary through rod.

[0013] Furthermore, multiple connecting plates are fixedly provided on one side of the bottom of the cleaning plate, and a sealing block is provided on the other end of the connecting plate. A discharge chamber for the sealing block to pass through is provided on the processing box. A secondary rubber sealing gasket is arranged inside the sealing block, and a rubber sealing gasket is pasted on the end of the sealing block facing the connecting plate.

[0014] The beneficial effects of this utility model are: By setting up the treatment tank, the wastewater to be treated first enters the treatment tank through the wastewater inlet pipe. In conjunction with multiple filter frames, the wastewater is pre-treated, filtering out relatively large impurities in the oily wastewater in sequence. Large particles that are difficult to be fully adsorbed and effectively floated by microbubbles are filtered out first, preventing impurities from accumulating at the bottom of the hydrocyclone and vertical flotation cylinder and causing blockages. This avoids adverse effects on subsequent water purification steps, improves the overall treatment effect, and ensures the normal operation and efficiency of the entire wastewater treatment system, while also reducing the difficulty and cost of maintaining the wastewater treatment equipment.

[0015] Oily wastewater, after being filtered to remove large particulate impurities, enters the hydrocyclone inlet pipe through the treatment tank, and then sequentially enters the hydrocyclone and the vertical air flotation cylinder, ultimately achieving further separation of oil, suspended solids and water by the hydrocyclone air flotation mechanism.

[0016] During the filtration of impurities, a pressure component can be used to squeeze the filtered impurities, compressing the wastewater and oil contained within them. The squeezed-out wastewater and oil are then discharged back into the hydrocyclone for subsequent cyclone dissolved air processing. When the wastewater treatment equipment is not in use, the impurities squeezed at the bottom of the treatment tank can be discharged through the cleaning component, ensuring that subsequent impurities can be effectively collected. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a front view of an anti-clogging cyclone dissolved gas device according to the present invention; Figure 2 This is a schematic diagram of the processing box of an anti-clogging cyclone dissolved gas device according to the present invention; Figure 3 This is a schematic diagram of the internal processing box of an anti-clogging cyclone dissolved gas device according to this utility model; Figure 4 This is a schematic diagram showing the positional relationship between the filter frame and the descending plate of an anti-clogging cyclone dissolved air device according to this utility model; Figure 5 This is a schematic diagram of the filter frame of an anti-clogging cyclone dissolved air device according to the present invention; Figure 6 This is a schematic diagram of the cleaning component of an anti-clogging vortex dissolved gas device according to the present invention.

[0019] In the diagram, 1. Hydrocyclone; 2. Vertical air flotation cylinder; 3. Hydrocyclone inlet pipe; 4. Hydrocyclone oil outlet pipe; 5. Hydrocyclone outlet pipe; 6. Air flotation outlet; 7. Dissolved air pump lower connecting pipe; 8. Dissolved air pump upper connecting pipe; 9. Dissolved air pump; 10. Sludge discharge outlet; 11. Wastewater inlet pipe; 12. Filter frame; 13. Filter screen; 14. Mounting plate; 15. Rubber sealing gasket; 16. Mounting frame; 17. Hydraulic cylinder; 18. Lower pressure plate; 19. Through rod; 20. Lowering plate; 21. Auxiliary hydraulic cylinder; 22. Push plate; 23. Auxiliary through rod; 24. Cleaning plate; 25. Connecting plate; 26. Sealing block; 27. Discharge chamber; 28. Auxiliary rubber sealing gasket; 29. ​​Sealing gasket; 30. Treatment box. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-6 This utility model provides an anti-clogging cyclone dissolved air device, comprising a vertical hydrocyclone 1 and a vertical air flotation cylinder 2 connected to the bottom of the hydrocyclone 1. The hydrocyclone 1 is connected to a hydrocyclone inlet pipe 3, and the hydrocyclone inlet pipe 3 is connected to a treatment box 30 for preventing clogging. A sewage inlet pipe 11 is provided on one side of the treatment box 30. Multiple filter frames 12 are provided inside the treatment box 30, and filter screens 13 are provided on the inner side of each filter frame 12. The treatment box 30 is provided with a pressing component and a cleaning component.

[0022] See Figure 1 The hydrocyclone 1 is also connected to the hydrocyclone oil drain pipe 4 and the hydrocyclone water outlet pipe 5. The vertical air flotation cylinder 2 is equipped with an air flotation outlet 6, a dissolved air pump lower connecting pipe 7 and a dissolved air pump upper connecting pipe 8. The dissolved air pump lower connecting pipe 7 is connected to the inlet of the dissolved air pump 9, and the dissolved air pump upper connecting pipe 8 is connected to the outlet of the dissolved air pump 9. The bottom end of the hydrocyclone inlet pipe 3 is equipped with a sludge discharge outlet 10.

[0023] See Figure 2-5Each filter frame 12 has a mounting plate 14 fixedly installed at its top. The mounting plate 14 and the filter frame 12 form a T-shaped frame. The T-shaped frame is an insert type. The filter frame 12 is inserted into the treatment box 30. A rubber sealing gasket 15 is attached to the end face of the mounting plate 14 facing the filter frame 12. The mounting plate 14 is fixed to the top of the treatment box 30 with screws. When the filter frame 12 is inserted into the treatment box 30, the mounting plate 14 is located at the top of the treatment box 30. At this time, the rubber sealing gasket 15 is located between the mounting plate 14 and the treatment box 30. After the mounting plate 14 is fixed to the top of the treatment box 30 with screws, the end position of the filter frame 12 penetrating the treatment box 30 is relatively sealed, preventing water leakage from the treatment box 30.

[0024] See Figure 2-4 The pressing component includes a mounting frame 16 mounted on the processing box 30. A hydraulic cylinder 17 is fixedly mounted on the top of the mounting frame 16. The output rod of the hydraulic cylinder 17 is connected to a pressing plate 18. The bottom of the pressing plate 18 is provided with multiple through rods 19 that penetrate into the processing box 30. Multiple descending plates 20 are fixedly mounted on the bottom of the through rods 19. The descending plates 20 are arranged between adjacent filter frames 12. When filtering impurities, the pressing component can be used to squeeze the filtered impurities. That is, the hydraulic cylinder 17 is opened to drive the pressing plate 18 to squeeze the sewage and oil contained in the impurities. The squeezed sewage and oil are discharged back into the hydrocyclone 1 for subsequent hydrocyclone dissolved gas processing, avoiding the discharge of impurities containing water and oil, which would not guarantee effective subsequent treatment.

[0025] See Figure 2 and Figure 6A secondary hydraulic cylinder 21 is fixedly mounted on the back of the mounting frame 16. The output rod of the secondary hydraulic cylinder 21 is connected to a push plate 22. Multiple secondary through rods 23 that penetrate into the interior of the processing box 30 are fixedly mounted on the push plate 22. A cleaning plate 24 is fixedly mounted on the other end of the secondary through rods 23. Multiple connecting plates 25 are fixedly mounted on one side of the bottom end of the cleaning plate 24. A sealing block 26 is provided at the other end of the connecting plate 25. A discharge chamber 27 is provided on the processing box 30 for the sealing block 26 to pass through. A secondary rubber sealing gasket 28 is arranged inside the sealing block 26. A rubber sealing gasket 29 is attached to the end of the sealing block 26 facing the connecting plate 25. After squeezing out the water in the impurities, the lower pressure plate 18 is raised so that the bottom end of the lower pressure plate 18 can just contact the top surface of the cleaning plate 24. This controls the secondary hydraulic cylinder. The opening of 21 ultimately moves the cleaning plate 24, connecting plate 25, and sealing block 26, discharging the impurities squeezed at the bottom. The cleaning plate 24 also scrapes the bottom of the lower pressure plate 18 to prevent impurities from sticking to it. The cleaning plate 24 can also extend out of the processing box 30 to ensure that impurities can be discharged and facilitate subsequent cleaning of the cleaning plate 24, connecting plate 25, and sealing block 26. The sealing block 26 is then inserted into the discharge chamber 27. The secondary rubber sealing gasket 28 is set to prevent sewage leakage. The secondary rubber sealing gasket 28 and the sealing gasket 29 are made of the same material and are both glued with industrial adhesive. The connection stability of the sealing gasket 29 and the secondary rubber sealing gasket 28 needs to be checked regularly. If the sealing gasket 29 and the secondary rubber sealing gasket 28 become loose, they need to be re-attached.

[0026] In use, the wastewater to be treated first enters the treatment tank 30 through the wastewater inlet pipe 11, and is pre-treated by multiple filter frames 12. The relatively large impurities in the oily wastewater are filtered out in sequence. Large particles that are difficult to be fully adsorbed and effectively floated by microbubbles are filtered out first, avoiding the accumulation of impurities at the bottom of the hydrocyclone 1 and the vertical flotation cylinder 2, which may cause blockage. This avoids adverse effects on subsequent water purification steps, improves the overall treatment effect, and ensures the normal operation and efficiency of the entire wastewater treatment system. It also reduces the difficulty and cost of maintaining the wastewater treatment equipment. The oily wastewater, after filtering out large particles, enters the hydrocyclone inlet pipe 3 through the treatment tank 30, and then sequentially enters the hydrocyclone 1 and the vertical air flotation cylinder 2, ultimately achieving further separation of oil, suspended solids, and water by the hydrocyclone air flotation mechanism. The treatment tank 30 is equipped with multiple support legs at its bottom, which are not shown in the figure. The other end of the support legs is connected to the outer shell of the hydrocyclone 1 or the ground. The bottom of the vertical air flotation cylinder 2 also has support legs that support the ground. The dissolved air pump 9 also has a support plate frame at its bottom, which is connected to the outer wall of the vertical air flotation cylinder 2. All of these are traditional support settings, which are not shown in the figure and will not be described in detail here.

[0027] During the filtration of impurities, a subsequent pressing component can be used to squeeze the filtered impurities, causing the wastewater and oil contained in the impurities to be squeezed out. The squeezed-out wastewater and oil are then discharged back into the hydrocyclone 1 for subsequent cyclone dissolved air processing. When the wastewater treatment equipment is not in use, the impurities squeezed at the bottom of the treatment tank 30 are discharged through the set cleaning component to ensure that subsequent impurities can be effectively collected. During collection, a collection basin can be placed at the bottom of the treatment tank 30 for easy collection. The vertical air flotation cylinder in the anti-clogging cyclone dissolved air device embodies the dissolved air flotation work of wastewater treatment.

[0028] It should be noted that the hydrocyclone 1 and the vertical air flotation cylinder 2 are existing publicly available devices. The hydrocyclone oil discharge pipe 4, hydrocyclone water outlet pipe 5, air flotation outlet 6, dissolved air pump lower connecting pipe 7, dissolved air pump upper connecting pipe 8, dissolved air pump 9, and sludge discharge outlet 10 on them are all conventional installations on the device. Components on the hydrocyclone 1 and the vertical air flotation cylinder 2 that are not described in detail are also existing publicly available. For example, the first and second baffles connected inside the hydrocyclone 1, the described hydrocyclone oil discharge chamber, hydrocyclone water inlet chamber, and hydrocyclone water outlet chamber, and the air flotation manual shut-off valve and air flotation liquid level regulating valve connected to the described air flotation outlet, etc., are all existing publicly available. Other working components that are not described in detail are conventional installations and will not be elaborated here.

[0029] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A clog-resistant cyclone dissolved gas device, characterized in that, A vertical hydrocyclone (1) and a vertical air flotation cylinder (2) connected to the bottom of the hydrocyclone (1). A hydrocyclone inlet pipe (3) is connected to the hydrocyclone (1). A treatment box (30) for preventing blockage is connected to the hydrocyclone inlet pipe (3). A sewage inlet pipe (11) is provided on one side of the treatment box (30). A number of filter frames (12) are provided inside the treatment box (30). A filter screen (13) is provided on the inner side of each filter frame (12). A pressure component and a cleaning component are provided on the treatment box (30).

2. The anti-clogging cyclone dissolved gas device according to claim 1, characterized in that, The hydrocyclone (1) is also connected to the hydrocyclone oil drain pipe (4) and the hydrocyclone water outlet pipe (5). The vertical air flotation cylinder (2) is equipped with an air flotation outlet (6), a lower connecting pipe (7) for the dissolved air pump and an upper connecting pipe (8) for the dissolved air pump. The lower connecting pipe (7) for the dissolved air pump is connected to the inlet of the dissolved air pump (9), and the upper connecting pipe (8) for the dissolved air pump is connected to the outlet of the dissolved air pump (9). The bottom end of the hydrocyclone inlet pipe (3) is equipped with a sludge discharge outlet (10).

3. The anti-clogging cyclone dissolved gas device according to claim 2, characterized in that, The top of the filter frame (12) is fixedly provided with a mounting plate (14), and the mounting plate (14) and the filter frame (12) form a T-shaped frame.

4. The anti-clogging cyclone dissolved gas device according to claim 3, characterized in that, The T-shaped frame is an insert type. The filter frame (12) is inserted into the treatment box (30). A rubber sealing gasket (15) is pasted on the end face of the mounting plate (14) facing the filter frame (12). The mounting plate (14) is fixed to the top of the treatment box (30) with screws.

5. The anti-clogging cyclone dissolved gas device according to claim 4, characterized in that, The pressing assembly includes a mounting frame (16) mounted on the processing box (30), a hydraulic cylinder (17) fixedly mounted on the top of the mounting frame (16), a pressing plate (18) connected to the output rod of the hydraulic cylinder (17), and a plurality of through rods (19) penetrating into the processing box (30) at the bottom of the pressing plate (18).

6. The anti-clogging cyclone dissolved gas device according to claim 5, characterized in that, Multiple descending plates (20) are fixedly provided at the bottom of the through rod (19), and the descending plates (20) are arranged between adjacent filter frames (12).

7. The anti-clogging cyclone dissolved gas device according to claim 6, characterized in that, A secondary hydraulic cylinder (21) is fixedly installed on the back of the mounting frame (16). The output end rod of the secondary hydraulic cylinder (21) is connected to a push plate (22). Multiple secondary through rods (23) that penetrate into the processing box (30) are fixedly installed on the push plate (22). A cleaning plate (24) is fixedly installed on the other end of the secondary through rods (23).

8. The anti-clogging cyclone dissolved gas device according to claim 7, characterized in that, Multiple connecting plates (25) are fixedly provided on one side of the bottom end of the cleaning plate (24). A sealing block (26) is provided at the other end of the connecting plate (25). A discharge chamber (27) is provided on the treatment box (30) for the sealing block (26) to pass through. A secondary rubber sealing gasket (28) is arranged inside the sealing block (26). A rubber sealing gasket (29) is pasted on the end of the sealing block (26) facing the connecting plate (25).

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