Disclosure of Invention
The invention aims to provide a pressure pneumatic oil separation tank and a use method thereof, and aims to solve the problems that in the prior art, the oil separation tank adopts manual oil slick salvaging or is provided with an oil scraping machine for scraping oil and oil slick, and the oil separation tank and the oil slick are scraped, and the two ways can cause residual greasy dirt on the oil separation tank and the surrounding environment, cause secondary pollution to the surrounding environment, and when the water level is low, the surface oil slick is easy to wall to be hardened on the tank wall and pollute the environment in the tank.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a pressure pneumatic oil separator tank comprising:
the oil separation tank is internally provided with a first upper baffle plate, a lower baffle plate and a second upper baffle plate in sequence, and the first upper baffle plate, the lower baffle plate and the second upper baffle plate divide the oil separation tank into a first-stage filter tank, a second-stage filter tank, a third-stage filter tank and a clean water tank;
the heater is fixedly arranged in the secondary filtering pond;
the pressurizing bin is arranged on the upper side in the clean water tank;
the water inlet pipe is fixed on the oil separation tank, and one end of the water inlet pipe penetrates into the primary filter tank;
the filtering mechanism is arranged in the oil separation tank to separate filter residues;
the waste oil tank is fixedly arranged in the secondary filtering tank and the tertiary filtering tank;
the waste oil groove is formed in the inner wall of one side of the secondary filtering tank and the inner wall of one side of the tertiary filtering tank;
the waste oil port is arranged on one side of the waste oil groove and is connected with the waste oil pool;
the ultrasonic water level sensor is fixedly arranged in the clean water tank;
one end of the pressurizing pipe is arranged at the pressurizing bin in the clean water tank, the other end of the pressurizing pipe penetrates out of the oil separation tank, and a pressurizing port and an exhaust port are formed in the penetrating end of the pressurizing pipe; and
the stirring mechanism is arranged in the secondary filtering tank and the tertiary filtering tank and is used for realizing stirring so as to prevent hardening or wall hanging of the oil slick.
As a preferred embodiment of the present invention, the filter mechanism includes:
the filter plate is fixedly and obliquely arranged in the primary filter tank;
a slag discharge port is formed in the inner wall of one side of the primary filter tank; and
and the vibration assembly is connected with the filter plate to realize vibration of the filter plate.
As a preferred aspect of the present invention, the vibration assembly includes:
the top of the hollow block is provided with an opening and is fixed on the inner wall of one side of the primary filter tank;
the top block is connected in the hollow block in a sliding way;
one end of the spring is fixed at the bottom of the top block, and the other end of the spring is fixed on the bottom wall of the hollow block;
one end of the connecting rod is fixed at the bottom of the top block, and the other end of the connecting rod penetrates through the spring and movably penetrates through the bottom of the hollow block and extends downwards;
the abutting ball is fixed at the bottom of the connecting rod;
one end of the first rotating shaft is rotatably connected to one side end of the first upper partition plate, and the other end of the first rotating shaft movably penetrates through the oil separation tank and extends;
a turntable fixed on the circumferential surface of the first rotating shaft; and
the arc-shaped block is fixed on the circumferential surface of the rotary table and intermittently abuts against the abutting ball.
As a preferable scheme of the invention, the top of the primary filter tank is provided with a first top cover, and the tops of the secondary filter tank and the tertiary filter tank are provided with a second top cover.
As a preferred embodiment of the present invention, the stirring mechanism includes:
the second rotating shafts are respectively and rotatably connected to the bottom walls of the secondary filtering ponds and the tertiary filtering ponds;
a plurality of stirring rods which are respectively fixed on the circumferential surfaces of the two second rotating shafts;
a fourth bevel gear which is provided with two bevel gears and is respectively fixed on the circumferential surfaces of the two second rotating shafts;
the two third rotating shafts are respectively connected to the inner walls of one side of the two-stage filtering ponds and one side of the three-stage filtering ponds in a rotating way, and the end parts of the two third rotating shafts movably penetrate through the oil separation ponds and extend; and
and the third bevel gears are respectively fixed on the circumferential surfaces of the two third rotating shafts and are respectively obliquely meshed with the two fourth bevel gears.
As a preferred aspect of the present invention, the motor further includes a power mechanism for driving the first rotation shaft and the two third rotation shafts to rotate, the power mechanism including:
the motor is arranged at one side of the oil separation tank;
the first bevel gear is fixed on the output end of the motor;
a first biconical gear fixed to an extended end surface of the first rotating shaft, and the first biconical gear being obliquely engaged;
the small chain wheel is fixed on the output end of the motor;
the large chain wheel is fixed on the extending end of one of the third rotating shafts;
a chain drivingly connected between the peripheral surfaces of the small sprocket and the large sprocket; and the transmission assembly is connected with the two third rotating shafts so as to realize power transmission.
As a preferable scheme of the invention, the transmission assembly is composed of a belt and two spool wheels, the two spool wheels are respectively fixed on the extending end surfaces of the two third rotating shafts, and the belt is connected between the circumferential surfaces of the two third rotating shafts in a transmission manner.
As a preferable scheme of the invention, a clear water outlet pipe is arranged at one side end of the oil separation tank, the clear water outlet pipe is communicated with the clear water tank, a drain pipe is arranged at the other side end of the oil separation tank, the drain pipe is communicated with the primary filter tank, a waste oil drain pipe is fixed at the bottom of the waste oil tank, and the other end of the waste oil drain pipe penetrates out of the oil separation tank.
As a preferable scheme of the invention, a steam radiating pipe is arranged on the upper side of the waste oil tank, one end of the steam radiating pipe is positioned on the upper sides of the waste oil tanks in the secondary filtering tank and the tertiary filtering tank, and the other end of the steam radiating pipe penetrates through the first upper partition plate and one side end of the oil separation tank to extend out of the oil separation tank.
The application method of the pressure pneumatic oil separation tank comprises the following steps:
s1, enabling oily sewage to enter a first-stage filter tank from a water inlet pipe, filtering large-particle filter residues in the oily sewage through a filter plate, discharging the filter residues from a slag discharge port, and enabling the oily sewage to enter the first-stage filter tank;
s2, the oily sewage stays for a period of time, the slag is at the bottom, the greasy dirt scum rises and is intercepted to the upper parts of the secondary filtering pond and the tertiary filtering pond, clear water enters the tertiary filtering pond and the clear water pond, the clear water is positioned at the lower side of the pressurizing bin, and the vibrating assembly is powered by the power mechanism at the moment, so that the filter plate vibrates, and filter residues can be better discharged from a slag discharging port;
step S3, when the water level reaches a threshold value through the induction of the ultrasonic water level sensor, the air pump pressurizes the pressurizing bin through the pressurizing port and the pressurizing pipe at the moment, so that the water level rises, thereby pushing the floating oil into the waste oil tank, then continuously rising, discharging the floating oil into the waste oil tank through the waste oil port for collection, stopping pressurizing after the floating oil is discharged, exhausting through the exhaust port, and recovering the normal water level;
step S4, the stirring mechanism is operated simultaneously, wherein the second rotating shaft drives the stirring rod to rotate, the oily sewage of the primary filter tank and the secondary filter tank is stirred, so that the floating oil in the oily sewage cannot be hardened, the floating oil in the waste oil tank is discharged through the waste oil drain pipe, the residue at the bottom of the primary filter tank is discharged regularly through the drain pipe, and the whole machine is free from cleaning and has no secondary pollution.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the scheme, the primary filter tank, the secondary filter tank, the tertiary filter tank and the clean water tank are arranged, oil and water are effectively separated by utilizing different specific gravities of oil molecules in water, the water level is raised by utilizing the pressure of the pressurizing bin, floating oil on the water surface is cleaned, and the residual sediment part is cleaned in time; the method has the advantages of simplicity, high efficiency, no need of cleaning the whole machine, safety, reliability, no secondary pollution and the like.
2. In this scheme, through the heater that is equipped with, it can heat the oil slick water in second grade filtering ponds and the tertiary filtering ponds, can effectually prevent oil slick hardening in the oil slick water.
3. In this scheme, through the rabbling mechanism that is equipped with, can slowly stir the oil slick sewage in second grade filtering ponds and the tertiary filtering ponds, can further explosion oil slick be difficult for hardening, can be higher by the discharge.
4. In this scheme, through the power unit who is equipped with, wherein utilize the diameter difference of big or small sprocket, so the transmission ratio is different for when the motor starts, drive the third pivot and can slowly rotate, thereby make the second pivot stir the speed slow, be difficult for because the too fast condition that leads to the oil slick to sink appears.
5. In this scheme, through the filtering mechanism who is equipped with, can discharge great filter residue in the oil slick effectively, the vibrations subassembly wherein can carry out the clearance to the filter plate effectively simultaneously and support and lean on for the filter plate shake, the large granule filter residue on its surface can be discharged from the sediment mouth better.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1-8, the present invention provides the following technical solutions:
a pressure pneumatic oil separator tank comprising:
the oil separation tank 1 is internally provided with a first upper baffle plate 6, a lower baffle plate 8 and a second upper baffle plate 9 in sequence, and the first upper baffle plate 6, the lower baffle plate 8 and the second upper baffle plate 9 divide the oil separation tank 1 into a first-stage filter tank 2, a second-stage filter tank 3, a third-stage filter tank 4 and a clean water tank 5;
the heater 28 is fixedly arranged in the secondary filtering tank 3, can heat the floating oil sewage in the secondary filtering tank 3 and the tertiary filtering tank 4, can effectively prevent the floating oil in the floating oil sewage from hardening, is electrically connected with an external power supply, and can be heated by opening a switch after being electrified;
the pressurizing bin 29 is arranged at the upper side in the clean water tank 5;
the water inlet pipe 14 is fixed on the oil separation tank 1, and one end of the water inlet pipe 14 penetrates into the primary filter tank 2;
the filtering mechanism is arranged in the oil separation tank 1 to realize the separation of filter residues;
the waste oil tank 13 is fixedly arranged in the secondary filtering tank 3 and the tertiary filtering tank 4;
the waste oil groove 22 is formed on the inner walls of one side of the secondary filtering pond 3 and one side of the tertiary filtering pond 4;
a waste oil port 23 which is opened at one side of the waste oil groove 22 and is connected with the waste oil pool 13;
the ultrasonic water level sensor 11 is fixedly arranged in the clean water tank 5;
one end of the pressurizing pipe 10 is arranged at the pressurizing bin 29 in the clean water tank 5, the other end of the pressurizing pipe penetrates out of the oil separation tank 1, and a pressurizing port 101 and an exhaust port 102 are arranged at the penetrating end of the pressurizing pipe 10; and
and the stirring mechanism is arranged on the secondary filtering tank 3 and the tertiary filtering tank 4 and is used for realizing stirring so as to prevent hardening or wall hanging of the oil slick.
In the specific embodiment of the invention, a first upper baffle plate 6 is fixed at the top in the oil separation tank 1, a first-stage filter tank 2 is separated at the leftmost side in the oil separation tank 1, a lower baffle plate 8 separates a second-stage filter tank 3 and a third-stage filter tank 4 in the oil separation tank 1, the rightmost side in the oil separation tank 1 is a clean water tank 5, the third-stage filter tank 4 and the clean water tank 5 are separated by a second upper baffle plate 9, the first upper baffle plate 6 is spaced from the bottom wall of the oil separation tank 1 for floating oil sewage circulation, the lower baffle plate 8 is fixed at the bottom wall of the oil separation tank 1 and spaced from the top wall of the oil separation tank 1 for floating oil sewage circulation, a second upper baffle plate 9 is fixed at the top wall of the oil separation tank 1 and spaced from the bottom wall of the oil separation tank 1 for clear water circulation, a water inlet pipe 14 is used for sewage to enter the first-stage filter tank 2, and filter residues with larger particles in the floating oil sewage can be filtered by a filter mechanism, the floating oil sewage flows down from the filter mechanism and enters the first-stage filter tank 2, the oil-containing sewage stays for a period of time, the slag is sunk, the oil-dirt scum rises due to gravity, the oil-dirt scum is blocked by the second upper partition plate 9, clear water enters the inner bottom of the third-stage filter tank 4 at the upper parts of the second-stage filter tank 3 and the third-stage filter tank 4, clear water flows into the clear water tank 5, the pressurizing port 101 is used for being connected with an external pressurizing air source through the pressurizing port 101, so that the pressurizing pipe 10 is filled with air, the pressurizing cabin 29 is pressurized, the top of the pressurizing pipe 10 is not contacted with the top wall of the pressurizing cabin 29, so that the gas can be pressurized better, the pressurizing is sensed through the ultrasonic water level sensor 11, the ultrasonic water level sensor 11 can set water level adjustment of a plurality of gears, when the water level in the pressurizing cabin 29 reaches a preset value, the air pump works to pressurize, the water level rises, so that the greasy dirt scum rises, can enter the waste oil groove 22 to be collected, then is discharged into the waste oil tank 13 through the waste oil port 23, and after the greasy dirt scum is discharged, the gas in the pressurized bin 29 is discharged through the exhaust port 102, so that the water level is reset, the floating oil in the waste oil tank 13 is discharged through the waste oil drain pipe 131, the residues at the bottom of the primary filter tank 2 are discharged periodically through the drain pipe 18, and the whole machine is free from cleaning and has no secondary pollution.
Preferably, baffle 7 is still provided between baffle 6 and the baffle 7 on the first, baffle 7 is fixed in on the oil removal pond 1 diapire, and baffle 7's top is shorter than baffle 8 down, can carry out the buffering and get into the interior oil slick of one-level filtering ponds 2 for wherein tiny granule filter residue is difficult for flowing into in second grade filtering ponds 3 and tertiary filtering ponds 4 after getting into one-level filtering ponds 2, can be discharged by blow off pipe 18 better.
Example 2
On the basis of embodiment 1, in this embodiment 2, the filtering mechanism includes:
the filter plate 12 is fixedly and obliquely arranged in the primary filter tank 2;
a slag discharge port 17 arranged on the inner wall of one side of the primary filter tank 2; and
a vibration assembly coupled to the filter plate 12 to effect vibration thereof.
In this embodiment: the oil-containing sewage is filtered for the first time through the filter plate 12, the filter plate 12 is obliquely arranged in the primary filter tank 2, the bottom of the filter plate 12 is flush with the slag discharge port 17, so that large-particle filter residues filtered on the filter plate 12 can slide to the slag discharge port 17 along the surface of the filter plate 12, and a charging barrel can be arranged at the slag discharge port 17 for collection and convenient treatment.
In a specific embodiment, the vibration assembly includes:
the top of the hollow block 24 is provided with an opening and is fixed on the inner wall of one side of the primary filter tank 2;
a top block 241 slidably connected within the hollow block 24;
a spring 242 having one end fixed to the bottom of the top block 241 and the other end fixed to the bottom wall of the hollow block 24;
a connecting rod 243 having one end fixed to the bottom of the top block 241 and the other end penetrating the spring 242 and movably penetrating the bottom of the hollow block 24 and extending downward;
a collision ball 244 fixed to the bottom of the connection rod 243;
one end of the first rotating shaft 245 is rotatably connected to one side end of the first upper partition plate 6, and the other end of the first rotating shaft 245 movably penetrates out of the oil separation tank 1 and extends;
a turntable 246 fixed to a circumferential surface of the first shaft 245; and
an arc-shaped block 247 is fixed to the circumferential surface of the turntable 246 and intermittently abuts against the abutting ball 244.
In this embodiment: through the vibration mechanism who is equipped with, can carry out the clearance to filter plate 12 and support, the oily sewage who is pouring the back, this moment filter plate 12 can shake, shake the residual big granule filter residue in its top down, from the sediment mouth 17 discharge, wherein, through first pivot 245 rotates, first pivot 245 drives carousel 246 rotation, carousel 246 drives arc piece 247 and rotates, carousel 246 and conflict ball 244 do not contact during the initial state, when arc piece 247 rotates to conflict ball 244 department, can support and press conflict ball 244, because conflict ball 244 is the spheroid, make arc piece 247 contact support when contradicting ball 244, be difficult for taking place the rigidity support, can more slick and go up conflict ball 244, the kicking piece 241 is the rubber material, slide in hollow block 24, hollow block 24 top is the opening, when arc piece 247 intermittent type supports and supports conflict ball 244, the connecting rod 243 moves upwards, simultaneously connecting rod 243 drives kicking piece 241 and upwards move and supports filter plate 12, filter plate 12 will spring 242 stretch, treat arc piece and support when the ball 244 contacts, can make the filter plate 241 and make it take place to compress the filter plate 12 to take place simultaneously, can take place the top piece 241 and make the compression time to take place simultaneously from the top piece 241 is more than the filter plate 12 because of the top piece is contacting, the filter plate 12 is more than the filter plate is difficult to take place, the top piece is contacting the top piece is more than the filter plate 12, the filter plate is broken down, the top is more than can be convenient to take place.
Specifically, the top of the primary filter tank 2 is provided with a first top cover 19, and the tops of the secondary filter tank 3 and the tertiary filter tank 4 are provided with a second top cover 20.
In this embodiment: the first top cap 19 and the second top cap 20 cover the top of oil removal pond 1 through the buckle activity lid, cover the primary filter pond 2, secondary filter pond 3 and tertiary filter pond 4, all are provided with handle 191 and observation window 192 on first top cap 19 and the second top cap 20, conveniently take first top cap 19 and second top cap 20 and conveniently follow outside direct observation oil removal pond 1 in the condition.
Example 3
On the basis of embodiment 1 or embodiment 2, in this embodiment, the stirring mechanism includes:
two second rotating shafts 27 which are respectively connected to the bottom walls of the secondary filtering ponds 3 and the tertiary filtering ponds 4 in a rotating way;
a plurality of stirring rods 271 fixed to circumferential surfaces of the two second rotating shafts 27, respectively;
a fourth bevel gear 273, two of which are fixed to the circumferential surfaces of the two second rotating shafts 27, respectively;
two third rotating shafts 274 are respectively connected to the inner walls of one side of the secondary filtering tank 3 and one side of the tertiary filtering tank 4 in a rotating way, and the end parts of the two third rotating shafts 274 movably penetrate through the oil separation tank 1 and extend; and
and third bevel gears 272 which are provided in two, are fixed to circumferential surfaces of the two third rotation shafts 274, respectively, and are obliquely engaged with the two fourth bevel gears 273, respectively.
In this embodiment: through the rabbling mechanism that is equipped with, wherein third pivot 274 rotates, drives third bevel gear 272 and rotates, and third bevel gear 272 drives the fourth bevel gear 273 rotation of oblique meshing to make second pivot 27 rotate, second pivot 27 drive a plurality of puddlers 271 and slowly rotate in second grade filtering ponds 3 and tertiary filtering ponds 4, make the oil slick be difficult for hardening.
Preferably, a reinforcing rod 275 is fixed between the first upper partition plate 6 and the second upper partition plate 9, two connecting holes are formed in the reinforcing rod 275 and are connected with two third rotating shafts 274 in a rotating mode, and the third rotating shafts 274 are further paid out, so that the third rotating shafts 274 rotate more stably, and the third bevel gear 272 and the fourth bevel gear 273 are not easy to separate.
Example 4
On the basis of the embodiment 1 to the embodiment 3, the pressure pneumatic oil separation tank further comprises:
a power mechanism for driving the first rotation shaft 245 and the two third rotation shafts 274 to rotate, the power mechanism comprising:
a motor 25 arranged at one side of the oil separation tank 1;
a first bevel gear 251 fixed to the output end of the motor 25;
a first biconical gear 252 fixed to an extended end surface of the first rotating shaft 245, and the first biconical gear 252 and the first biconical gear 251 are obliquely engaged;
a small sprocket 253 fixed to the output end of the motor 25;
a large sprocket 254 fixed to an extended end of one of the third shafts 274;
a chain 256 drivingly connected between the circumferential surfaces of the small sprocket 253 and the large sprocket 254; and
the transmission assembly is connected with both the third rotating shafts 274 to realize power transmission.
In this embodiment: in the scheme, through the power mechanism, the first rotating shaft 245 can be driven to rotate, the third rotating shaft 274 can be made to rotate, only one power output point is needed, cost expenditure is reduced, more functions are realized by means of a ingenious structure, meanwhile, when the output end of the motor 25 is output by means of the transmission ratio of different diameters of large and small chain wheels in the power mechanism, the third rotating shaft 274 can rotate more slowly through one side of the large chain wheel 254, the stirring rod 271 can be slowly stirred, and floating oil is not easily stirred; the motor 25 is fixed to a base 255, and the base 255 is a box that can be used to store some items.
In a specific embodiment, the transmission assembly is composed of a belt 261 and two spools 26, the two spools 26 are respectively fixed on the extended end surfaces of the two third rotating shafts 274, and the belt 261 is connected between the circumferential surfaces of the two third rotating shafts 274 in a transmission manner.
In this embodiment: through the drive assembly that is equipped with for two third pivots 274 in the rabbling mechanism can rotate simultaneously, drive puddler 271 simultaneously stirs sewage in second grade filtering ponds 3 and the tertiary filtering ponds 4, prevents the profit hardening.
Specifically, the one side end of oil removal pond 1 is provided with clear water exit tube 15, clear water exit tube 15 and clear water pond 5 intercommunication, and the opposite side end of oil removal pond 1 is provided with blow off pipe 18, and blow off pipe 18 and one-level filtering ponds 2 intercommunication, the bottom of waste oil pond 13 is fixed with waste oil calandria 131, and the other end of waste oil calandria 131 runs through outside oil removal pond 1.
In this embodiment: after the clear water outlet pipe 15 is used for the clear water tank 5 to rise the liquid level, the clear water is discharged, the blow off pipe 18 is used for clearing up the sediment oil residue in the first-stage filtering ponds 2, the waste oil calandria 131 is used for discharging the waste oil in the waste oil pond 13, preferably, all be provided with control valves on clear water outlet pipe 15, waste oil calandria 131 and the blow off pipe 18, conveniently control its fluxion.
In a specific embodiment, a steam heat dissipation tube 21 is disposed on the upper side of the waste oil tank 13, one end of the steam heat dissipation tube 21 is located on the upper side of the waste oil tank 13 in the secondary filtering tank 3 and the tertiary filtering tank 4, and the other end of the steam heat dissipation tube 21 extends out of the oil separation tank 1 through the first upper partition 6 and one side end of the oil separation tank 1.
In this embodiment: one end of the steam radiating pipe 21 extends out of the oil separation tank 1, and the other end is positioned on the upper sides of the waste oil tank 13, the primary filter tank 2 and the secondary filter tank 3 and is used for timely discharging water vapor.
Example 5
The embodiment 5 provides a use method of the pressure pneumatic oil separation tank, which is used for better explaining the working process or principle of the pressure pneumatic oil separation tank provided by the embodiments 1-4, and specifically comprises the following steps:
the application method of the pressure pneumatic oil separation tank comprises the following steps:
step S1, oily sewage enters the primary filter tank 2 from the water inlet pipe 14, large-particle filter residues in the oily sewage are filtered through the filter plate 12, the filter residues are discharged from the slag discharge port 17, and the oily sewage enters the primary filter tank 2;
step S2, the oily sewage stays for a period of time, the slag is at the bottom, the oil dirt and scum rise, and are intercepted to the upper parts of the secondary filtering pond 3 and the tertiary filtering pond 4, clean water enters the tertiary filtering pond 4 and the clean water pond 5, the clean water is positioned at the lower side of the pressurizing bin 29, then the motor 25 is started, the output end of the motor 25 drives the first conical gear 251 and the small chain wheel 253 to rotate, the first conical gear 251 drives the first rotating shaft 245 to rotate through the first conical gear 252 which is obliquely meshed, the first rotating shaft 245 drives the turntable 246 to rotate, the turntable 246 drives the arc block 247 to rotate, the arc block 247 intermittently contacts and abuts against the abutting ball 244, the abutting ball 244 drives the connecting rod 243 to move upwards, meanwhile, the connecting rod 243 drives the top block 241 to move upwards and abut against the filter plate 12 to stretch the spring 242, and when the arc block 247 does not contact with the abutting ball 244, the top block 241, the connecting rod 243 and the abutting ball 244 are reset through the elasticity of the spring 242, the next contact is facilitated, the top block 241 intermittently abuts against the filter plate 12, the filter plate 12 is vibrated, the residual large particle filter residues on the filter plate 12 can smoothly slide down from the surface of the filter plate 12, the filter residues are discharged from the slag discharging port 17, meanwhile, the small chain wheel 253 is driven by the chain 256 through the diameter different from that of the large chain wheel 254, the chain 256 is slowly rotated, the two third rotating shafts 274 are synchronously and slowly rotated through the transmission assembly, the third rotating shafts 274 drive the third conical gears 272 to rotate, the third conical gears 272 drive the obliquely meshed fourth conical gears 273 to rotate, the second rotating shafts 27 drive the stirring rods 271 to slowly rotate in the secondary filter tank 3 and the tertiary filter tank 4, floating oil is not easy to harden, at the moment, the heater 28 is electrified, the floating oil sewage is heated, further, the floating oil sewage is not easy to harden;
step S3, after the induction of the ultrasonic water level sensor 11, a signal is fed back when the liquid level reaches a certain water level, the pressurizing bin 29 starts to pressurize, at the moment, an external pressurizing air source is connected to the pressurizing pipe 10 through the pressurizing port 101, the pressurizing bin 29 is pressurized, when the bin is full of pressure, the water level is lifted, the water level is raised, so that floating oil is pushed into the waste oil tank 22, then the waste oil tank is continuously lifted, the waste oil is discharged into the waste oil tank 13 through the waste oil port 23 for collection, the clean water in the clean water tank 5 is discharged through the clean water outlet pipe 15 arranged at the upper part, the pressurizing is stopped after the floating oil is discharged, the observing window 192 on the first top cover 19 and the second top cover 20 at the top is used for observing, the air discharging is performed through the air outlet 102, and the normal water level is recovered; the floating oil in the waste oil tank 13 is discharged periodically through the waste oil drain pipe 131, or the second top cover 20 is opened for cleaning, the residues at the bottom of the primary filter tank 2 are discharged periodically through the drain pipe 18, and the whole machine is free from cleaning and has no secondary pollution.
Finally, it should be noted that: the above is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that the present invention is described in detail with reference to the foregoing embodiments, and modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.