CN114656069B - Oily sewage safety treatment device - Google Patents

Abstract

The invention discloses a safety treatment device for oily sewage, belonging to the technical field of sewage treatment. A safety treatment device for oily sewage includes a box body, and a water inlet pipe is embedded and fixedly connected to the left side of the upper end face of the box body. A filter screen is fixedly connected to the inner surface of the body near the top, and a fixing plate is fixedly connected to the inner surface of the box near the center. The outer surface of the bottom end of the fixing plate is vertical to the center of the bottom end of the inner surface of the box A rotating shaft is directly connected to the rotating shaft. The top of the rotating shaft penetrates through the fixed plate, and several groups of connecting frames are fixedly connected at an equal distance on the outer surface of the rotating shaft near the upper part of the fixed plate, which can realize the automatic cleaning function of the filter screen and prevent the filter screen from occurring. The blockage ensures the filtering effect of the filter screen, and at the same time, it can more conveniently separate the oil and water, and it can also automatically remove the pollutant scum generated on the surface of the sewage, and the purification effect is better.

Description

A safety treatment device for oily sewage

technical field

The invention relates to the technical field of sewage treatment, and more particularly, to a safety treatment device for oily sewage.

Background technique

Oily sewage refers to the sewage produced after the crude oil is initially separated from oil and water during the extraction and transportation of crude oil. Due to the complex components of oily sewage, its properties are complex and changeable; the content of organic matter, especially hydrocarbons and their derivatives in oily sewage is high, and contains a variety of heavy metals;

If the oily sewage is directly discharged into nature or injected into the well, it will not only cause the loss of crude oil production, but also cause great harm to the ecological environment, river water quality, underground formation and soil quality. Before injection, it must be purified to reduce the waste of crude oil and damage to nature;

When the traditional oily sewage treatment device is in use, because the sewage contains a large amount of solid impurities, the sewage will be filtered, but at the same time of filtration, a large amount of solid impurities will easily accumulate on the filter screen, and it is easy to block after a long time. , affecting the filtering effect of sewage. Manual treatment requires a lot of manpower and material resources and affects work efficiency. At the same time, when traditional oily sewage treatment devices are used, the processes are complicated and varied, the cost is high, and the purification effect is not good, and the overall needs to be improved.

To this end, a safety treatment device for oily sewage is proposed.

SUMMARY OF THE INVENTION

1. technical problem to be solved

In view of the problems existing in the prior art, the purpose of the present invention is to provide a safety treatment device for oily sewage, which can realize the automatic cleaning function of the filter screen, prevent the filter screen from being blocked, ensure the filtering effect of the filter screen, and at the same time can improve the filtering effect of the filter screen. It is convenient to separate oil and water, and can also automatically remove the pollutant scum on the surface of sewage, and the purification effect is better.

2. Technical solutions

In order to solve the above problems, the present invention adopts the following technical solutions.

A safety treatment device for oily sewage, comprising a box body, a water inlet pipe is embedded and fixedly connected to the left side of the upper end surface of the box body, a filter screen is fixedly connected to the inner surface of the box body near the top, and the box body is A fixed plate is fixedly connected to the inner surface near the center;

The outer surface of the bottom end of the fixed plate is vertically rotatably connected to the center of the bottom end of the inner surface of the box body, and a rotating shaft 1 is connected vertically. Several groups of connecting frames are connected, oil-absorbing cottons are fixedly connected between the connecting frames, and a water outlet pipe is embedded and fixedly connected to the right side of the bottom end of the outer surface of the box body, and the right side of the outer surface of the box body is close to the middle A liquid inlet pipe is embedded and fixedly connected to the position of the box body, and a cleaning mechanism is arranged inside the box body near the filter screen.

Further, a connecting pipe 1 is embedded and fixedly connected to the position of the right end surface of the box body close to the upper part of the fixing plate, the right end of the connecting pipe 1 is fixedly connected with a three-phase valve, and the right end of the three-phase valve is fixedly connected with a connecting pipe 2. The bottom end of the three-phase valve is fixedly connected with a connecting pipe three, and the other end of the connecting pipe three penetrates the box body and enters the inside thereof, and the connecting pipe three is located below the fixing plate.

Further, the cleaning mechanism includes a second rotating shaft, a first motor, and a cleaning brush;

A second rotating shaft is rotatably connected between the end face of the filter screen and the top center of the inner surface of the box, and a motor one is fixedly connected to the upper end surface of the box body. The output shaft of the first motor is fixedly connected to the second rotating shaft, and the outer surface of the second rotating shaft A cleaning brush is fixedly connected to the position close to the filter screen on the side.

Further, the cleaning mechanism also includes a bevel gear 1, a guide cylinder, a collection box, an auger, and a bevel gear 2;

The bottom end of the second rotating shaft penetrates the filter screen and is fixedly connected with a bevel gear one, the guide cylinder is fixedly connected to the right side of the bottom end face of the filter screen, and the two are connected to each other, and the collection box is fixedly connected to the box body The right end face of , and the guide cylinder extends through the box to the inside of the collection box;

The inner surface of the collection box is laterally connected with an auger, and the left end of the auger penetrates the guide cylinder and is fixedly connected with the second bevel gear, and the second bevel gear and the first bevel gear are meshed with each other, and the bottom of the guide cylinder is connected. The end face is provided with several groups of filter holes, which are communicated with the collection box.

Further, the rear end of the bottom end face of the fixing plate is rotatably connected with the transmission shaft through the connecting block, and the rear end face of the box body is fixedly connected with the second motor at the position corresponding to the transmission shaft, and the output shaft of the second motor is fixedly connected with the transmission shaft;

A one-way bevel gear 1 is fixedly connected to the right side of the outer surface of the transmission shaft, and a bevel gear 3 is fixedly connected to the position corresponding to the one-way bevel gear 1, and the two are meshed with each other. Several groups of stirring rods are fixedly connected to the bottom end of the outer surface.

Further, a fixing frame is fixedly connected to the left side of the inner surface of the box body near the bottom, the inner surface of the fixing frame is fixedly connected with a guide plate, and the left end of the guide plate extends to the outer surface of the box, and it is Inclination structure design, the front end surface of the fixed frame is fixedly connected to the limit plate, and it is an inclined structure design.

Further, a rotating drum is rotatably connected to the position of the fixed frame on the annular outer surface of the rotating shaft 1, the upper end surface of the rotating drum is fixedly connected with a bevel gear ring, and the outer surface of the transmission shaft is close to the one-way bevel gear 1. The position of the right side is fixedly connected with the second one-way bevel gear, and the second one-way bevel gear meshes with the bevel gear ring.

Further, the front end surface of the rotating drum is provided with a chute, the inner surface of the chute is slidably connected with a slider, the upper end surface of the slider is fixedly connected with a spring, and the other end of the spring is connected to the inner surface of the chute. Top fixed connection;

The front end of the slider is fixedly connected with a scraper, and the height of the bottom end surface of the scraper is higher than that of the bottom end surface of the limiting plate and lower than the height of the upper end surface of the fixing frame.

Further, the rear end of the inner surface of the box body is fixedly connected with a spring air bag at a position corresponding to the right side of the transmission shaft;

A suction pipe is fixedly connected above the right end face of the spring air bag through a one-way valve, the suction pipe extends to the outside of the box body, and a cam is fixedly connected to the outer surface of the transmission shaft corresponding to the position of the spring air bag.

Further, an air outlet pipe is fixedly connected to the bottom of the right end face of the spring air bag through a one-way valve, an air blow pipe is fixedly connected to the bottom end of the inner surface of the box body, and the upper end face of the air blow pipe is equidistantly provided with several groups of outlet pipes. The air hole, the air outlet pipe and the air blowing pipe are communicated with each other.

3. beneficial effect

Compared with the prior art, the advantages of the present invention are:

(1) By adding a cleaning mechanism, this solution can not only automatically scrape the impurities on the filter screen, but also transport the scraped impurities to the collection box for collection, prevent the accumulation of solid impurities on the filter screen, and ensure the filter screen. filter effect.

(2) In this scheme, by adding a series of structural components such as the second motor, the first rotating shaft and the oil-absorbing cotton, the oil can be absorbed by the oil-absorbing cotton, and by driving the oil-absorbing cotton to rotate at a high speed, under the action of centrifugal force, the oil in the oil-absorbing cotton can be removed. Throwing out, greatly facilitates the separation of oil and water.

(3) This scheme can automatically generate a large number of air bubbles in sewage by adding a series of structural components such as spring airbags and air blowing pipes, which is not only conducive to the full mixing of sewage and coagulant, but also greatly improves the air flotation effect of sewage. .

(4) By adding a series of structural components such as scraper, guide plate and limit plate, this scheme can automatically scrape the oil pollutants generated on the surface of sewage into the guide plate, and realize the function of automatic impurity removal, which is conducive to the Oil stains and tiny solid impurities are removed and the purification effect is improved.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is the overall front sectional view of the present invention;

Fig. 3 is A-A sectional view in Fig. 2 of the present invention;

Fig. 4 is the enlarged view of place B in Fig. 2 of the present invention;

Fig. 5 is the enlarged view of C place in Fig. 2 of the present invention;

FIG. 6 is a schematic view of the combination of the fixing frame and the limiting plate of the present invention;

Fig. 7 is the enlarged view of D place in Fig. 2 of the present invention;

FIG. 8 is an enlarged view of the position E in FIG. 3 of the present invention.

Description of the labels in the figure:

1. Box body; 11. Water inlet pipe; 12. Filter screen; 13. Fixed plate; 14. Shaft 1; 15. Connecting frame; 16. Oil-absorbing cotton; One; 21, three-phase valve; 22, connecting pipe two; 23, connecting pipe three; 3, cleaning mechanism; 31, shaft two; 32, motor one; 33, cleaning brush; 34, bevel gear one; 35, guide Drum; 36, collection box; 37, auger; 38, bevel gear two; 4, drive shaft; 41, motor two; 42, one-way bevel gear one; 43, bevel gear three; 44, stirring rod; 5 , fixed frame; 51, guide plate; 52, limit plate; 6, drum; 61, bevel gear ring; 62, one-way bevel gear II; 7, chute; 71, slider; 72, spring; 73, Scraper; 8, spring air bag; 81, suction pipe; 82, cam; 83, outlet pipe; 84, blowing pipe.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. The embodiments of the present invention, and all other embodiments obtained by those of ordinary skill in the art without creative work, fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the orientations shown in the accompanying drawings Or the positional relationship is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "provided with", "sleeve/connection", "connection", etc., should be understood in a broad sense, such as " Connection", which can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be an internal connection between two components. of connectivity. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

As shown in FIGS. 1 to 4 , an embodiment of the present invention provides a safety treatment device for oily sewage, including a box body 1 , and a water inlet pipe 11 is embedded and fixedly connected to the left side of the upper end surface of the box body 1 . A filter screen 12 is fixedly connected to the inner surface of 1 near the top, and a fixing plate 13 is fixedly connected to the inner surface of the box 1 near the center. The outer surface of the bottom end of the fixing plate 13 is connected to the inner surface of the box 1. The center of the bottom end is vertically rotatably connected with a rotating shaft one 14. The top end of the rotating shaft one 14 penetrates the fixing plate 13, and several groups of connecting frames 15 are fixedly connected at an equal distance on the outer surface of the rotating shaft 14 at the position close to the upper part of the fixing plate 13. Oil-absorbing cottons 16 are fixedly connected between the racks 15, and a water outlet pipe 17 is embedded and fixedly connected to the right side of the bottom end of the outer surface of the box body 1, and the right side of the outer surface of the box body 1 is embedded and fixed at a position close to the middle. A liquid inlet pipe 18 is connected, a cleaning mechanism 3 is arranged inside the box body 1 near the filter screen 12, and a connecting pipe 2 is embedded and fixedly connected to the position of the right end face of the box body 1 near the upper part of the fixing plate 13 The right end of the connecting pipe 2 is fixedly connected with a three-phase valve 21, and the right end of the three-phase valve 21 is fixedly connected with a connecting pipe 22, and the bottom end of the three-phase valve 21 is fixedly connected with a connecting pipe three 23, and is connected The other end of the third tube 23 penetrates through the box body 1 and enters the inside thereof, and the connecting tube three 23 is located under the fixing plate 13 .

By adopting the above technical solution, during operation, the petroleum sewage is poured into the interior of the box 1 through the water inlet pipe 11, and the larger solid impurities in the sewage can be filtered out by the filtering effect of the filter screen 12, and the cleaning mechanism 3 is controlled to work, The surface of the filter screen 12 can be cleaned automatically, which can effectively prevent the filter screen 12 from being blocked. The sewage filtered and processed by the filter screen 12 continues to flow downward under the action of gravity, and flows into the oil-absorbing cotton 16 directly below the filter screen 12. , Since the oil-absorbing cotton 16 is professionally suitable for absorbing oil and does not absorb water, the oil-absorbing cotton 16 can quickly absorb the oil in the sewage into its interior, and the water will not be absorbed by the oil-absorbing cotton 16, and the sewage will continue to flow downward. The preliminary separation of oil and water is realized. In the initial state, the three-phase valve 21 connects the connecting pipe 1 2 and the connecting pipe 3 23 to each other, and the sewage can flow into the tank through the connecting pipe 1 2, the three-phase valve 21 and the connecting pipe 3 23. At the bottom end of the body 1, the coagulant is injected into the liquid inlet pipe 18 to react with the sewage to purify the sewage, and the completely purified sewage can be discharged through the water outlet pipe 17.

As an embodiment of the present invention, as shown in FIGS. 2 and 5 , the cleaning mechanism 3 includes a second rotating shaft 31 , a first motor 32 , and a cleaning brush 33 . A second rotating shaft 31 is rotatably connected to the central position, and a motor one 32 is fixedly connected to the upper end surface of the box body 1. The output shaft of the first motor 32 is fixedly connected to the second rotating shaft 31, and the right side of the outer surface of the second rotating shaft 31 is close to the filter screen. The position of 12 is fixedly connected with a cleaning brush 33, and the cleaning mechanism 3 also includes a bevel gear 1 34, a guide cylinder 35, a collection box 36, a auger 37, and a bevel gear 2 38. The bottom end of the second rotating shaft 31 runs through The filter screen 12 is fixedly connected with a bevel gear 1 34, the guide cylinder 35 is fixedly connected to the right side of the bottom end face of the filter screen 12, and the two are connected to each other, and the collection box 36 is fixedly connected to the right end of the box body 1. and the guide cylinder 35 extends through the box body 1 to the inside of the collection box 36, the inner surface of the collection box 36 is connected with the auger 37 laterally, and the left end of the auger 37 penetrates the guide cylinder 35 and is fixedly connected with a bevel gear The second 38, and the second bevel gear 38 and the first bevel gear 34 are meshed with each other. The bottom end surface of the guide cylinder 35 is provided with several groups of filter holes, which communicate with the collection box 36.

By adopting the above technical solution, the first motor 32 is controlled to rotate, the second rotating shaft 31 is driven to rotate, and then the cleaning brush 33 is driven to rotate, which can effectively clean the outer surface of the filter screen 12, and the cleaning brush 33 that performs circular motion can sweep solid impurities into the Inside the guide cylinder 35, the rotation of the second shaft 31 can drive the bevel gear 1 34 to rotate, thereby driving the bevel gear 2 38 meshed with it to rotate, and then drive the auger 37 to rotate, which can remove the solid impurities on the inner surface of the guide cylinder 35. It is transported to the inside of the collection box 36 to the right to avoid accumulation of solid impurities on the filter screen 12 and ensure the filtering effect of the filter screen 12 .

As an embodiment of the present invention, as shown in FIG. 2 , FIG. 3 and FIG. 8 , the rear end of the bottom end face of the fixing plate 13 is rotatably connected with the transmission shaft 4 through the connecting block, and the rear end face of the box body 1 corresponds to the transmission shaft 4 . The position of the shaft 4 is fixedly connected with the second motor 41, and the output shaft of the second motor 41 is fixedly connected with the transmission shaft 4;

A one-way bevel gear 42 is fixedly connected to the right side of the outer surface of the transmission shaft 4, and a bevel gear 3 43 is fixedly connected to the position of the one-way bevel gear 14 corresponding to the one-way bevel gear 42, and the two are meshed with each other. Several groups of stirring rods 44 are fixedly connected to the bottom end of the outer surface of the first rotating shaft 14 .

By adopting the above technical solution, when an appropriate amount of sewage completely enters the bottom of the box 1, the three-phase valve 21 is controlled to connect the connecting pipe 1 2 and the connecting pipe 2 22 to each other, and the rotation of the motor 2 41 is controlled to drive the transmission shaft 4 to rotate, thereby Drive the one-way bevel gear one 42 to rotate, and then drive the bevel gear three 43 meshed with it to rotate, and then drive the rotating shaft one 14 to rotate at a high speed, and then drive the oil-absorbing cotton 16 inside the connecting frame 15 to rotate at a high speed. Under the action of centrifugal force , the oil in the oil-absorbing cotton 16 can be thrown out, which greatly facilitates the separation of oil and water. The oil flows out of the box 1 through the connecting pipe 1 2, the three-phase valve 21 and the connecting pipe 2 22, which is convenient for the user to carry out Collecting, the rotation of the rotating shaft 14 can drive the stirring rod 44 to rotate at the same time, so as to stir the sewage and the coagulant, promote the reaction between them, and use the air flotation method to remove the pollutants in the sewage.

As an embodiment of the present invention, as shown in FIG. 2 , FIG. 6 and FIG. 8 , a fixing frame 5 is fixedly connected to the left side of the inner surface of the box body 1 near the bottom, and the inner surface of the fixing frame 5 is fixedly connected. A guide plate 51 is fixedly connected, and the left end of the guide plate 51 extends to the outer surface of the box body 1, and it is designed with an inclined structure. The annular outer surface of the rotating shaft 14 corresponds to the position of the fixed frame 5 and is rotatably connected to a rotating drum 6 through a bearing. The upper end surface of the rotating drum 6 is fixedly connected with a bevel gear ring 61, and the outer surface of the transmission shaft 4 is close to the one-way The position on the right side of the bevel gear 1 42 is fixedly connected with a one-way bevel gear 62, and the one-way bevel gear 2 62 meshes with the bevel gear ring 61. The front end surface of the drum 6 is provided with a chute 7, and the The inner surface of the chute 7 is slidably connected with a slider 71 , the upper end surface of the slider 71 is fixedly connected with a spring 72 , and the other end of the spring 72 is fixedly connected with the top end of the inner surface of the chute 7 , the front end of the slider 71 A scraper 73 is fixedly connected, and the height of the bottom end surface of the scraper plate 73 is higher than that of the bottom end surface of the limiting plate 52 and lower than the height of the upper end surface of the fixing frame 5 .

By adopting the above technical solution, the sewage liquid level at the bottom of the box 1 is controlled to be higher than the bottom end face of the scraper 73 and lower than the upper end face of the fixing frame 5. After the stirring is completed, the second motor 41 is controlled to reverse, so as to drive the transmission If the shaft 4 is reversed, the transmission shaft 4 cannot drive the one-way bevel gear 1 42 to rotate, and then drives the one-way bevel gear 2 62 to rotate, and then the bevel gear ring 61 drives the rotating drum 6 to slowly rotate clockwise around the shaft one 14. Then, the scraper 73 is driven to rotate clockwise. When the scraper 73 contacts the limit plate 52, since the limit plate 52 is designed with an inclined structure, the height of the scraper 73 is slowly raised under the limit action of the limit plate 52. , drive the slider 71 to slide upward along the chute 7 and squeeze the spring 72 until the scraper 73 slides over the upper end face of the fixed frame 5 to restore the original state. The scum is scraped into the guide plate 51 and flows out.

As an embodiment of the present invention, as shown in FIG. 2 , FIG. 3 and FIG. 7 , a spring air bag 8 is fixedly connected to the rear end of the inner surface of the box body 1 corresponding to the position on the right side of the transmission shaft 4 . A suction pipe 81 is fixedly connected to the top of the right end face of 8 through a one-way valve, the suction pipe 81 extends to the outside of the box 1, and a cam 82 is fixedly connected to the outer surface of the transmission shaft 4 corresponding to the position of the spring air bag 8, so Below the right end surface of the spring air bag 8 is fixedly connected with an air outlet pipe 83 through a one-way valve, and a blowing pipe 84 is fixedly connected to the bottom end of the inner surface of the box body 1. The upper end surface of the air blowing pipe 84 is equidistantly provided with several groups. In the air outlet, the air outlet pipe 83 and the air blowing pipe 84 communicate with each other.

By adopting the above technical solution, when the transmission shaft 4 rotates, it can drive the cam 82 to rotate, so that the cam 82 can squeeze the spring air bag 8 cyclically. A plurality of air bubbles are blown out from the bottom of the sewage, which is not only conducive to the full mixing of the sewage and the coagulant, but also greatly improves the air flotation effect of the sewage. Inhale the inside of the spring air bag 8 and wait for the next blowing work.

Working principle: During work, the petroleum sewage is poured into the box 1 through the water inlet pipe 11, and the larger solid impurities in the sewage can be filtered out through the filtering effect of the filter screen 12. By controlling the cleaning mechanism 3 to work, it can automatically Cleaning the surface of the filter screen 12 can effectively prevent the filter screen 12 from being blocked. The sewage filtered and processed by the filter screen 12 continues to flow downward under the action of gravity, and flows into the oil-absorbing cotton 16 directly under the filter screen 12. The cotton 16 is professionally suitable for absorbing oil, but not water. The oil-absorbing cotton 16 can quickly absorb the oil in the sewage inside it, and the water will not be absorbed by the oil-absorbing cotton 16, and the sewage will continue to flow downward, realizing the oil Preliminary separation from water, in the initial state, the three-phase valve 21 connects the connecting pipe 1 2 and the connecting pipe 3 23 to each other, and the sewage can flow into the box 1 through the connecting pipe 1 2, the three-phase valve 21 and the connecting pipe 3 23. At the bottom end, the coagulant is injected into the liquid inlet pipe 18 to react with the sewage to purify the sewage, and the motor one 32 is controlled to rotate, which drives the second shaft 31 to rotate, and then drives the cleaning brush 33 to rotate, which can effectively clean the outside of the filter screen 12. The surface is cleaned, and the cleaning brush 33 in a circular motion can sweep solid impurities into the interior of the guide cylinder 35. At the same time, the rotation of the second rotating shaft 31 can drive the bevel gear one 34 to rotate, thereby driving the bevel gear two 38 meshed with it to rotate. Then, the auger 37 is driven to rotate, and the solid impurities on the inner surface of the guide cylinder 35 can be transported to the inside of the collection box 36 to the right, which avoids the accumulation of solid impurities on the filter screen 12, and ensures the filtering effect of the filter screen 12. When entering the bottom of the box body 1, the three-phase valve 21 is controlled to connect the connecting pipe 1 2 and the connecting pipe 2 22 to each other, and the second motor 41 is controlled to rotate, which can drive the transmission shaft 4 to rotate, thereby driving the one-way bevel gear 1 42 to rotate, and then Drive the bevel gear three 43 meshed with it to rotate, and then drive the shaft one 14 to rotate at a high speed, and then drive the oil-absorbing cotton 16 inside the connecting frame 15 to rotate at a high speed. Under the action of centrifugal force, the oil in the oil-absorbing cotton 16 can be thrown away. The oil-water separation effect is greatly improved, the oil flows out of the box 1 through the connecting pipe 1 2, the three-phase valve 21 and the connecting pipe 2 22, which is convenient for users to collect it, and the rotating shaft 14 can drive the stirring rod 44 at the same time. Rotate, so as to stir the sewage and the coagulant, promote the reaction between the two, use the air flotation method to remove the pollutants in the sewage, and control the sewage liquid level at the bottom of the box 1 to be higher than the bottom end of the scraper 73. Lower than the upper end face of the fixed frame 5, when the stirring is completed, the second motor 41 is controlled to reverse, so as to drive the drive shaft 4 to reverse, then the drive shaft 4 cannot drive the one-way bevel gear one 42 to rotate, and then drive the one-way bevel gear. The second 62 rotates, and then the bevel gear ring 61 drives the rotating drum 6 to slowly rotate clockwise around the rotating shaft one 14, and then drives the scraper 73 to rotate clockwise. When the scraper 73 contacts the limit plate 52, due to the limit plate 52 is an inclined structure design, then under the limiting action of the limiting plate 52, the height of the scraper 73 rises slowly, driving the slider 71 to slide upward along the chute 7 to squeeze the spring 72 until the scraper The plate 73 slides over the upper end face of the fixed frame 5 before returning to the original state. During this process, the scraper 73 can scrape the oily scum generated on the surface of the sewage into the guide plate 51 and flow out. When the transmission shaft 4 rotates , can drive the cam 82 to rotate, so that the cam 82 can squeeze the spring air bag 8 cyclically. When the spring air bag 8 shrinks, a plurality of air bubbles can be blown out from the bottom of the sewage through the one-way valve air outlet pipe 83 and the air blow pipe 84, which is not only beneficial to the sewage The full mixing with the coagulant can also greatly improve the air flotation effect of the sewage. When the spring air bag 8 expands, the outside air can be sucked into the spring air bag 8 through the one-way valve and the suction pipe 81, waiting for the next blowing work. .

The above description is only a preferred embodiment of the present invention; however, the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical scope of the present invention, according to the technical solution of the present invention and its improvement concept, equivalently replaces or changes, should be covered within the protection scope of the present invention.

Claims (5)

1. A safety treatment device for oily sewage, comprising a box body (1), characterized in that a water inlet pipe (11) is embedded and fixedly connected to the left side of the upper end face of the box body (1), and the box body (1) A filter screen (12) is fixedly connected to the inner surface of the box (1) near the top, and a fixing plate (13) is fixedly connected to the inner surface of the box (1) near the center; The outer surface of the bottom end of the fixing plate (13) is vertically rotatably connected to the center position of the bottom end of the inner surface of the box (1) with a rotating shaft (14), and the top end of the rotating shaft (14) penetrates the fixing plate (13). ), and its outer surface is equidistantly connected with several groups of connecting frames (15) at positions close to the top of the fixing plate (13), and oil-absorbing cottons (16) are fixedly connected between the connecting frames (15). A water outlet pipe (17) is embedded and fixedly connected to the right side of the bottom end of the outer surface of the box body (1), and a liquid inlet pipe (18) is embedded and fixedly connected to the right side of the outer surface of the box body (1) near the middle. A cleaning mechanism (3) is provided inside the box (1) at a position close to the filter screen (12); A transmission shaft (4) is rotatably connected to the rear end of the bottom end face of the fixing plate (13) through a connecting block, and a second motor (41) is fixedly connected to the rear end face of the box body (1) corresponding to the position of the transmission shaft (4). And the output shaft of the second motor (41) is fixedly connected with the transmission shaft (4); A one-way bevel gear (42) is fixedly connected to the right side of the outer surface of the transmission shaft (4), and a bevel gear three (42) is fixedly connected to the position corresponding to the one-way bevel gear (42). 43), and the two are engaged with each other, and several groups of stirring rods (44) are fixedly connected to the bottom end of the outer surface of the first rotating shaft (14); A fixing frame (5) is fixedly connected to the left side of the inner surface of the box body (1) near the bottom, and a guide plate (51) is fixedly connected to the inner surface of the fixing frame (5), and the guide plate (51) The left end of the frame (5) extends to the outer surface of the box body (1), and is designed with an inclined structure, and the front end surface of the fixing frame (5) is fixedly connected to the limiting plate (52), and it is designed with an inclined structure; A connecting pipe (2) is embedded and fixedly connected to the position of the right end surface of the box body (1) close to the upper part of the fixing plate (13), and a three-phase valve (21) is fixedly connected to the right end of the connecting pipe (2). And the right end of the three-phase valve (21) is fixedly connected with the connecting pipe two (22), the bottom end of the three-phase valve (21) is fixedly connected with the connecting pipe three (23), and the other end of the connecting pipe three (23) is fixedly connected Pass through the box body (1) into its interior, and the connecting pipe three (23) is located under the fixing plate (13); A rotating drum (6) is rotatably connected to the position of the annular outer surface of the first rotating shaft (14) corresponding to the fixed frame (5) through a bearing, and a bevel gear ring (61) is fixedly connected to the upper end surface of the rotating drum (6). And the position of the outer surface of the transmission shaft (4) close to the right side of one-way bevel gear one (42) is fixedly connected with one-way bevel gear two (62), and one-way bevel gear two (62) and bevel gear ring (61) are fixedly connected with one-way bevel gear two (62). ) mesh with each other; The front end surface of the rotating drum (6) is provided with a chute (7), the inner surface of the chute (7) is slidably connected with a sliding block (71), and the upper end surface of the sliding block (71) is fixedly connected with a sliding block (71). a spring (72), and the other end of the spring (72) is fixedly connected with the top end of the inner surface of the chute (7); A scraper (73) is fixedly connected to the front end of the slider (71), and the height of the bottom end surface of the scraper (73) is higher than the height of the bottom end surface of the limiting plate (52) and lower than the fixing frame (5) the height of the upper end face. 2 . The oily sewage safety treatment device according to claim 1 , wherein the cleaning mechanism ( 3 ) comprises a second rotating shaft ( 31 ), a first motor ( 32 ), and a cleaning brush ( 33 ); 2 . The upper end surface of the filter screen (12) is rotatably connected to the center position of the top end of the inner surface of the box body (1) with a rotating shaft two (31), and the upper end surface of the box body (1) is fixedly connected with a motor one (32), the motor The output shaft of the first (32) is fixedly connected to the second rotating shaft (31), and a cleaning brush (33) is fixedly connected to the position on the right side of the outer surface of the second rotating shaft (31) close to the filter screen (12). 3. A safety treatment device for oily sewage according to claim 2, characterized in that: the cleaning mechanism (3) further comprises a bevel gear (34), a guide cylinder (35), a collection box (36), Auger (37), two bevel gears (38); The bottom end of the second rotating shaft (31) penetrates the filter screen (12) and is fixedly connected with a bevel gear one (34), the guide cylinder (35) is fixedly connected to the right side of the bottom end surface of the filter screen (12), and The two are connected to each other, the collection box (36) is fixedly connected to the right end face of the box body (1), and the guide cylinder (35) extends through the box body (1) to the inside of the collection box (36); The inner surface of the collection box (36) is laterally connected with an auger (37), and the left end of the auger (37) penetrates the guide cylinder (35) and is fixedly connected with a bevel gear two (38), and the bevel gear The second (38) meshes with the first bevel gear (34), and the bottom end face of the guide cylinder (35) is provided with several groups of filter holes, which communicate with the collection box (36). 4. A safety treatment device for oily sewage according to claim 3, characterized in that: the rear end of the inner surface of the box (1) is fixedly connected with a spring airbag (8) at the position corresponding to the right side of the transmission shaft (4). ); A suction pipe (81) is fixedly connected above the right end face of the spring air bag (8) through a one-way valve, the suction pipe (81) extends to the outside of the box (1), and the outside of the transmission shaft (4) is connected. A cam (82) is fixedly connected on the surface corresponding to the position of the spring air bag (8). 5 . The oily sewage safety treatment device according to claim 4 , wherein an air outlet pipe ( 83 ) is fixedly connected to the bottom of the right end surface of the spring air bag ( 8 ) through a one-way valve, and the box body ( 8 ). 6 . 1) An air blowing pipe (84) is fixedly connected to the bottom end of the inner surface. The upper end face of the air blowing pipe (84) is equidistantly provided with several groups of air outlet holes, and the air outlet pipe (83) and the air blowing pipe (84) communicate with each other.

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