Oil-water separation treatment and purification device

Abstract

The utility model relates to an oil-water separation treatment purification device which comprises an environment-friendly second interlayer box body, an environment-friendly third interlayer box body and a filtering structure, stairs are connected to the outer side of the box body, the first interlayer box body is connected to the left side in the box body, and the first interlayer box body, the second interlayer box body and the third interlayer box body are sequentially connected in the box body. The second interlayer box body is connected to one side of the first interlayer box body, the filtering structure is connected to one side of the third interlayer box body, surface floating oil is extracted through the oil extraction machine, the contact area between the oil extraction machine and the floating oil is increased at present, and the oil extraction efficiency is improved; the treatment volume of the water tank is increased, the sewage temperature is further reduced, more grease particles are coagulated and floated when the temperature is reduced, and the oil yield is increased; and adding a flocculation agent and a low-temperature degreasing agent, and under the action of a stirrer, enabling the liquid medicine and the emulsified oil water to fully react to generate solid flocculate, so as to remove grease particles in the sewage.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental protection processing, in particular to an oil-water separation treatment and purification device. Background Art

[0002] In the past, oil extractors were used to directly extract surface oil, and the remaining wastewater was subsequently discharged directly into a sewage pool for treatment. Increasing oil content increases the sewage pool's treatment load, leading to the death of biodegradation populations, and also results in high operating costs during normal treatment. The water in the oil-water separators used by many companies is recycled multiple times. After a certain period of circulation, the water is saturated with oil particles. Using recycled water in this situation can easily lead to safety hazards, such as fires and other emergency situations. Because the circulation system is not using recycled water, but a saturated solution containing oil, this can trigger unexpected situations when exposed to high temperatures. Continuing to extract the oil from the oil-containing wastewater before it is treated in the sewage pool can generate additional economic value. Currently, there are few large-capacity professional oil-water separators on the market, or the COD index after treatment does not meet the emission standards. The oil scraping device in the oil-water separator disclosed in the prior art application number CN201721086871.5 has a large contact area between the scraping roller and the floating oil in the box. The continuous rotation of the scraping roller can make the floating oil continue to adhere to its cylinder wall, and the scraping plate can continuously scrape the floating oil on the cylinder wall of the scraping roller into the oil tank, so that the oil and water can be continuously and effectively separated. In the above process, the oil-water separation effect is good and the separation efficiency is high, which greatly improves the recovery efficiency of organic matter in printing and dyeing wastewater. However, the device only physically drains the oil. In the physical extraction process, the efficiency of extracting oil using the existing oil extractor is low, and the emulsified oil cannot be extracted. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides an oil-water separation treatment and purification device with the following advantages.

[0004] In order to achieve the above-mentioned functional purpose, the present invention provides the following technical solution: it includes a box body, characterized in that: the box body includes stairs, a first compartment box body, a second compartment box body, a third compartment box body, and a filter structure, the stairs are connected to the outside of the box body, the first compartment box body is connected to the left side of the box body, the first compartment box body is connected to the first compartment box body, and the third compartment box body is connected to the box body in sequence, the second compartment box body is connected to one side of the first compartment box body, the filter structure is connected to one side of the third compartment box body, the filter structure is connected to the outside of the box body, the top of the second compartment box body is connected to a medicine barrel, and the bottom of the box body is connected to a water pump, and the medicine barrels and water pumps include but are not limited to two.

[0005] Furthermore, the first compartment box includes an oil scraper, which is connected to the inner upper side of the first compartment box, and the side of the oil scraper is connected to an oil collecting box, and the oil collecting box is connected to the inner upper part of the first compartment box. The oil scraper includes scraping blades and a rotating rod, and a plurality of scraping blades are connected to the annular side of the rotating rod. One end of the rotating rod is connected to a motor, and the oil collecting box includes an oscillating motor, and the oscillating motor is connected to the side of the oil collecting box. The output shaft end of the oscillating motor is connected to an oscillating rod, and the annular side of the oscillating rod is connected to a plurality of oscillating protrusions, and a plurality of scraping grooves are formed between the oscillating protrusions.

[0006] Furthermore, the scraper blade includes a connecting shaft, and the scraper blade is connected to several spring groups through the connecting shaft. The other end of the spring group is connected to a scraping surface, and one end of the scraping surface is connected to several protrusions. The protrusions increase the contact area of the scraping surface with the floating oil, so that the scraping surface improves the oil lifting efficiency.

[0007] Furthermore, one of the two chemical barrels contains a flocculating agent, and the other contains a low-temperature degreasing agent.

[0008] Furthermore, a stirrer is connected to the second barrier box.

[0009] Furthermore, a filter is connected to the lower inner side of the third compartment box, the filter includes multiple filter layers, the filter layers are connected to the filter, the side of the first compartment box is connected to a waste oil outlet and a wastewater inlet, the wastewater outlet is located below the waste oil outlet, and the water outlet end of the wastewater inlet is connected to a pre-filter.

[0010] Furthermore, the filtration structure includes a filter bag, an activated carbon filter box, a booster pump, and a clean water outlet. The top of the filtration structure is connected to a water outlet valve, the filter bag is connected below the water outlet valve, the activated carbon filter layer is connected below the filter bag, the booster pump is connected below the activated carbon filter box, and the clean water outlet is connected below the booster pump.

[0011] Furthermore, one side of the waste oil outlet and the wastewater outlet is connected to a water outlet valve.

[0012] Compared with the existing technology, the advantages of the utility model are: a glass fiber filter device is set at the feed inlet to filter out large particles of impurities, and the oil extractor is used to extract the surface floating oil. The current oil extractor increases the contact area with the floating oil, thereby improving the oil extraction efficiency; the water tank processing volume is increased to further reduce the sewage temperature. The lower temperature will condense and float more oil particles, thereby increasing the oil output; flocculant and low-temperature degreasing agent are added, and under the action of the agitator, the liquid medicine and emulsified oil and water are fully reacted to produce solid flocculants, thereby removing the oil particles in the sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1This is a schematic diagram of the three-dimensional structure of an oil-water separation and purification device of the utility model;

[0014] Figure 2 This is a schematic cross-sectional view of an oil-water separation and purification device according to the present invention;

[0015] Figure 3 This is a front structural diagram of an oil-water separation and purification device of the utility model;

[0016] Figure 4 This is a side structural diagram of an oil-water separation and purification device of the utility model;

[0017] Figure 5 This is a schematic diagram of the filter structure of an oil-water separation and purification device of the utility model;

[0018] Figure 6 This is a schematic diagram of the structure of an oil scraper of an oil-water separation and purification device of the utility model;

[0019] Figure 7 This is a schematic diagram of the scraper structure of an oil-water separation and purification device of the utility model.

[0020] The figure shows: the box 1 includes stairs 2, a first compartment box 3, a reagent barrel 4, a second compartment box 5, a third compartment box 6, a filter 7, a filtering structure 8, a water pump 9, a rotating rod 30, an oil scraper 31, an oil collecting box 32, a scraper 33, an oscillation motor 34, a motor 35, an oscillation bump 36, a scraping groove 38, a spring group 21, a scraping surface 22, a bump 23, a waste oil outlet 11, a wastewater inlet 12, a pre-filter 13, a stirrer 14, a filter layer 71, a filter bag 81, an activated carbon filter box 82, a booster pump 83, a clean water outlet 84, and a water outlet valve. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. For the embodiments, please refer to Figure 1-7, an oil-water separation and purification device includes a box body 1, characterized in that: the box body 1 includes stairs 2, a first interlayer box body 3, a second interlayer box body 5, a third interlayer box body 6, and a filtering structure 8, the stairs 2 is connected to the outside of the box body 1, the first interlayer box body 3 is connected to the left side of the box body 1, the first interlayer box body 3, the second interlayer box body 5, and the third interlayer box body 6 are sequentially connected to the box body 1, the second interlayer box body 5 is connected to one side of the first interlayer box body 3, the filtering structure 8 is connected to one side of the third interlayer box body 6, the filtering structure 8 is connected to the outside of the box body 1, the top of the second interlayer box body 5 is connected to a medicine barrel 4, and the bottom of the box body 1 is connected to a water pump 9, the medicine barrel 4 and the water pump 9 include but Not limited to two; the first interlayer box 3 includes an oil scraper 31, the oil scraper 31 is connected to the upper side of the first interlayer box 3, the side of the oil scraper 31 is connected to an oil collecting box 32, the oil collecting box 32 is connected to the upper inner part of the first interlayer box 1, the oil scraper 31 includes a scraper 33 and a rotating rod 30, a plurality of scrapers 33 are connected to the annular side of the rotating rod 30, one end of the rotating rod 30 is connected to a motor 35, the oil collecting box 32 includes an oscillation motor 34, the oscillation motor 34 is connected to the side of the oil collecting box 32, the output shaft end of the oscillation motor 34 is connected to an oscillation rod, the annular side of the oscillation rod is connected to a plurality of oscillation protrusions 36, and a plurality of scraping grooves 38 are formed between the oscillation protrusions 36; start the motor, vibrate The swing motor drives the rotating rod and the oscillating rod to rotate, so that the scraper and the oscillating protrusion 36 rotate at the same time, and the tail end of the scraper 33 touches the oscillating protrusion 36, and then the spring drives the scraper surface to vibrate, so that the floating oil on the side of the scraper surface protrusion is easily fallen off by the vibration, and the scraper surface passes through the scraping groove 38 and is scraped into the oil collecting tank. Each scraper surface is individually connected to a spring combination connected by a spring on one side; the scraper 33 includes a connecting shaft, and the scraper 33 is connected to a plurality of spring groups 21 through the connecting shaft, and the other end of the spring group 21 is connected to the scraper surface 22, and one end of the scraper surface 22 is connected to a plurality of protrusions 23, and the protrusions 23 increase the contact area of the scraper surface 22 with the floating oil, so that the scraper surface 22 improves the oil extraction efficiency; the bottom end of the agent barrel 4 is connected to a peristaltic pump, and the peristaltic pump The bottom end is connected to a flow meter, the bottom end of the flow meter is connected to a discharge pipe, the bottom end of the discharge pipe is connected to the second compartment box, one of the two reagent barrels 4 contains a flocculant, and the other contains a low-temperature degreasing agent; the second compartment box 5 is connected to a stirrer 14, under the action of the stirrer, the liquid medicine and the emulsified oil-water are fully reacted to produce solid flocculants, and the grease particles in the sewage are removed, and then pumped to the third compartment box through a water pump. When entering the box, it first passes through a filter to filter out large particles of solids and flocculants in the water. After this filtration, the water body is relatively clean, and is pumped to the activated carbon filter box by a booster pump outside the water tank for the final filtration to thoroughly reduce indicators such as COD and CBD to achieve the purpose of direct discharge or recycling;The lower side of the third compartment housing 6 is connected to a filter 7, which includes multiple filter layers 71. The filter layers 71 are connected to the inside of the filter 7. The side of the first compartment housing 3 is connected to a waste oil outlet 11 and a waste water inlet 12. The waste water outlet 12 is located below the waste oil outlet 11, and the outlet end of the waste water inlet 12 is connected to a pre-filter 13. The filter structure 8 includes a filter bag 81, an activated carbon filter box 82, a booster pump 83, and a clean water outlet 84. The top of the filter structure 8 is connected to a water outlet valve. The filter bag 81 is connected below the water outlet valve, the activated carbon filter layer 82 is connected below the filter bag 81, the booster pump 83 is connected below the activated carbon filter box 82, and the clean water outlet 84 is connected below the booster pump 83. The waste oil outlet and the waste water outlet are both connected to a water outlet valve. The water pump extracts the liquid in the housing.

[0022] Working Principle: During the physical extraction process, the efficiency of oil extraction using existing oil extractors is low. Emulsified oil cannot be extracted, and the oil delivered from the front-end process contains a large amount of impurities. To improve the existing process, a glass fiber filter is installed at the feed inlet to filter out large impurities. The oil extractor extracts the surface oil. The oil extractor now has a larger contact area with the floating oil, improving extraction efficiency. The water tank treatment volume is increased to further reduce the wastewater temperature. Lower temperatures condense and float more oil particles, increasing oil output. The existing process: After oil extraction, the wastewater is directly discharged into a sewage tank for treatment. The current improvement plan is as follows: After the first oil extraction, the oil is pumped to the second compartment box through a water pump, and flocculants and low-temperature degreasing agents are added. Under the action of the agitator, the liquid medicine and emulsified oil-water fully react to produce solid flocculants, and the grease particles in the sewage are removed. The oil is then pumped to the third compartment box through a water pump. When entering the box, it first passes through the filter 7 to filter out large particles of solids and flocculants in the water. After this filtration, the water is relatively clean. The booster pump outside the box 1 is used to pump the oil to the activated carbon filter box for the last filtration to completely reduce COD, CBD and other indicators to achieve the purpose of direct discharge or recycling.

[0023] The entire system is equipped with a flow meter, automatic valves, and a float valve, enabling automated operation. When the wastewater reaches the float level switch in the first compartment, the pump is activated, the oil pump is shut down, and the wastewater is pumped to the second isolation compartment. When the float level switch is reached, the pump is shut down, the infusion pump is activated, and when the set flow rate is reached, the infusion pump is stopped, the agitator is started, and the agitator is shut down when the agitator has completed its operation. Simultaneously, when the water in the first isolation compartment is completely pumped out, the external water supply is activated, and the oil pump is started and operated. The outlet valve and booster pump are linked. Opening the outlet valve activates the booster pump, pumping water from the third isolation tank. Closing the outlet valve shuts off the booster pump, pumping water from the third isolation tank. When the third isolation tank falls below the set level, the second pump is activated, and this cycle repeats, achieving fully automated operation. A backwash filter is installed in front of the activated carbon filter to facilitate cleaning and prevent clogging.

[0024] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and range of equivalents of the claims be included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0025] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An oil-water separation and purification device, comprising a housing (1), characterized in that: The box (1) comprises a staircase (2), a first compartment box (3), a second compartment box (5), a third compartment box (6), and a filter structure (8); the staircase (2) is connected to the outside of the box (1); the first compartment box (3) is connected to the left side of the box (1); the first compartment box (3), the second compartment box (5), and the third compartment box (6) are sequentially connected to the box (1); the second compartment box (5) is connected to one side of the first compartment box (3); the filter structure (8) is connected to one side of the third compartment box (6); the filter structure (8) is connected to the outside of the box (1); the top of the second compartment box (5) is connected to a medicine barrel (4); the bottom of the box (1) is connected to a water pump (9); the medicine barrel (4) and the water pump (9) include but are not limited to two.

2. The oil-water separation treatment and purification device according to claim 1, characterized in that: The first compartment box (3) includes an oil scraper (31), the oil scraper (31) is connected to the inner upper side of the first compartment box (3), the oil scraper (31) is connected to the side of an oil collecting box (32), the oil collecting box (32) is connected to the inner upper part of the first compartment box (3), the oil scraper (31) includes scraping blades (33) and a rotating rod (30), the rotating rod (30) is connected to a plurality of scraping blades (33) on the annular side, the rotating rod (30) is connected to a motor (35) at one end, the oil collecting box (32) includes an oscillating motor (34), the oscillating motor (34) is connected to the side of the oil collecting box (32), the output shaft end of the oscillating motor (34) is connected to an oscillating rod, the annular side of the oscillating rod is connected to a plurality of oscillating protrusions (36), and a plurality of scraping grooves (38) are formed between the oscillating protrusions (36).

3. The oil-water separation and purification device according to claim 2, characterized in that: The scraper (33) includes a connecting shaft, and the scraper (33) is connected to a plurality of spring groups (21) via the connecting shaft. The other end of the spring group (21) is connected to a scraper surface (22), and one end of the scraper surface (22) is connected to a plurality of protrusions (23). The protrusions (23) increase the contact area of the scraper surface (22) with the floating oil, so that the scraper surface (22) improves the oil extraction efficiency.

4. The oil-water separation treatment and purification device according to claim 1, characterized in that: One of the two reagent barrels (4) contains a flocculating agent, and the other contains a low-temperature degreasing agent.

5. The oil-water separation treatment and purification device according to claim 1, characterized in that: The second barrier box (5) is connected to a stirrer (14).

6. The oil-water separation and purification device according to claim 1, characterized in that: The lower side of the third compartment box (6) is connected to a filter (7), the filter (7) comprising a plurality of filter layers (71), the filter layers (71) being connected to the filter (7), the side of the first compartment box (3) being connected to a waste oil outlet (11) and a waste water inlet (12), the waste water inlet (12) being located below the waste oil outlet (11), and the water outlet of the waste water inlet (12) being connected to a pre-filter (13).

7. The oil-water separation treatment and purification device according to claim 1, characterized in that: The filter structure (8) comprises a filter bag (81), an activated carbon filter box (82), a booster pump (83), and a clean water outlet (84). The top of the filter structure (8) is connected to a water outlet valve, the filter bag (81) is connected below the water outlet valve, the activated carbon filter box (82) is connected below the filter bag (81), the booster pump (83) is connected below the activated carbon filter box (82), and the clean water outlet (84) is connected below the booster pump (83).

8. The oil-water separation treatment and purification device according to claim 6, characterized in that: One side of the waste oil outlet (11) and the waste water inlet (12) is connected to a water outlet valve.

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