Oil-water separator

Abstract

The invention discloses an oil-water separator, comprising: a tank body, wherein a mixing tank, a primary filtering tank, a secondary filtering tank, and a clear water tank are sequentially arranged inside the tank body along the flow direction of sewage; a partition plate, wherein the mixing tank, the primary filtering tank, the secondary filtering tank, and the clear water tank are separated by the partition plate, and adjacent partition plates are staggered to form an S-shaped flow channel; a sewage pump feeding unit, wherein the sewage pump feeding unit is connected to the mixing tank from outside the tank body; a bubble water generating unit, wherein the bubble water unit is connected to the mixing tank near the bottom from outside the tank body; and a slag scraping unit, wherein the slag scraping unit is installed at the tank mouth position of the tank body, and the slag scraping unit is used to collect floating slag on the pool surface of the tank body.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, in particular to an oil-water separator. Background Art

[0002] When existing sewage treatment equipment treats oily wastewater, it usually discharges the oily wastewater into a sedimentation tank for sedimentation, and uses the property of oil floating on the pool surface due to its low density to filter the oil on the pool surface. However, this wastewater treatment method still results in incomplete oil-water separation. Summary of the invention

[0003] To achieve the above object, the present invention discloses an oil-water separator, comprising:

[0004] A tank body, wherein a mixing tank, a primary filtration tank, a secondary filtration tank, and a clear water tank are sequentially arranged in the tank body along the flow direction of the sewage;

[0005] Partitions, wherein the mixing tank, the primary filtration tank, the secondary filtration tank, and the clean water tank are separated by partitions, and adjacent partitions are staggered to form an S-shaped flow channel;

[0006] A sewage pumping unit, wherein the sewage pumping unit is connected to the mixing tank from outside the tank body;

[0007] A bubble water generating unit, wherein the bubble water generating unit is connected from outside the pool body to a position near the bottom of the mixing pool;

[0008] The scraping unit is installed at the pool opening of the pool body and is used to collect floating scum on the pool surface in the pool body.

[0009] Preferably, the bubble water generating unit comprises:

[0010] A pressure pump, wherein the outlet of the pressure pump is connected to a position near the bottom of the mixing tank from outside the tank body through a pipeline;

[0011] A water supply end, the water supply end is connected to an inlet end of a pressure pump;

[0012] The air supply end is connected to the other inlet end of the booster pump.

[0013] Preferably, the water supply end is a water tank.

[0014] Preferably, the air supply end is composed of a dissolved air tank and an air compressor, the air inlet end of the dissolved air tank is connected to the air compressor through a pipeline, and the air outlet end of the dissolved air tank is connected to the other inlet end of the booster pump through a pipeline.

[0015] Preferably, water inlet channels are reserved between the bottom end of the partition between the mixing tank and the primary filtration tank and the bottom of the tank body, and between the bottom end of the partition between the secondary filtration tank and the clear water tank and the bottom of the tank body.

[0016] Preferably, the scraping unit comprises:

[0017] A frame body, wherein the frame body is installed at the pool opening of the pool body;

[0018] Transmission shafts, two transmission shafts are arranged on a frame in parallel along the sewage flow direction;

[0019] A transmission chain belt, wherein the transmission chain belt is sleeved on the two transmission shafts;

[0020] Scrapers, a plurality of the scrapers are equidistantly arranged on the transmission chain belt, the scrapers are located on the pool surface of the mixing tank, the primary filtration tank, and the secondary filtration tank, and the scrapers are provided with slots for the partitions to pass through;

[0021] An oil collecting tank, which is installed in the tank body near the tank mouth;

[0022] The oil drain port is connected to the outer wall of the pool body near the pool mouth, and the oil drain port is connected to the oil collecting tank.

[0023] Preferably, the sewage pumping unit comprises:

[0024] Mixing tank;

[0025] A sewage inlet pipe, wherein the sewage inlet pipe is connected to the stirring tank;

[0026] A sewage pump pipeline, one end of which is connected to the stirring tank, and the other end of which is connected to the mixing tank from outside the tank body;

[0027] The coagulant adding unit is installed above the stirring tank and is used to add coagulant into the stirring tank.

[0028] Preferably, the side end of the pool body is connected to a sewage outlet near the pool bottom, and the side end of the pool body is connected to a drainage outlet near the pool mouth, and the drainage outlet is connected to the clean water pool.

[0029] Preferably, the coagulant adding unit comprises:

[0030] A mounting seat, wherein the mounting seat is installed above the stirring tank;

[0031] a mixing chamber, the mixing chamber being located within the mounting seat;

[0032] A coagulant adding chamber, the coagulant adding chamber is located in the mounting seat, and the coagulant adding chamber is arranged in parallel with the mixing chamber;

[0033] A coagulant addition port, the coagulant addition port is located at a side end of the mounting seat, and the coagulant addition port is connected to the coagulant addition chamber;

[0034] A first chamber, the first chamber is located in the mounting seat, the first chamber is located above the mixing chamber and the coagulant addition chamber;

[0035] a first inlet, the first inlet being connected to the first chamber and the mixing chamber;

[0036] a second inlet, the second inlet being connected to the first chamber and the coagulant addition chamber;

[0037] A slider, the slider is transversely slidably connected in the first chamber;

[0038] A first slot, wherein the first slot is opened at the center of the top of the slider;

[0039] A first channel, two of the first channels are symmetrically opened at the bottom end of the slider, the first channels are connected to the bottom end of the first slot, the two first channels are arranged in a gradually converging and inclined manner near the first slot end, one of the first channels is arranged away from the first slot end and close to the first inlet, and the other of the first channels is arranged away from the first slot end and close to the second inlet;

[0040] A mounting tube, the mounting tube being horizontally connected to a side end of the slider, the inner wall of the mounting tube being connected with an internal thread;

[0041] A first transverse groove, wherein the first transverse groove is formed on the inner wall of the first chamber, and the end of the mounting tube away from the slider is connected to the first transverse groove;

[0042] A driving motor, wherein the driving motor is installed in the first transverse groove;

[0043] A screw rod, the screw rod is connected to the output end of the driving motor and is inserted into the mounting tube;

[0044] A water collecting bucket is installed in the mixing chamber near the top, and the water collecting bucket is connected to the first inlet;

[0045] A vertical pipe connected to the bottom end of the water collecting bucket;

[0046] A floating plate, the floating plate is located in the mixing chamber, and the vertical pipe is provided with the floating plate at an end away from the water collecting bucket;

[0047] A water return channel, the water return channel being connected to the mixing chamber and the coagulant addition chamber;

[0048] A baffle installation chamber, the baffle installation chamber is located in the installation seat, and the baffle installation chamber is located below the water return channel;

[0049] A mounting block, the mounting block being vertically slidably connected in the baffle mounting chamber;

[0050] A first spring, one end of which is connected to the top of the mounting block, and the other end of which is connected to the top of the inner wall of the baffle mounting chamber;

[0051] A baffle, the baffle is vertically mounted on the mounting block, the end of the baffle away from the mounting block is provided with a baffle mounting chamber connected to the return water channel, and a return water hole adapted to the return water channel is opened on the baffle;

[0052] A first bayonet, wherein the first bayonet is provided on a wall of the baffle installation chamber;

[0053] A first card slot, the first card slot is provided on the mounting block, and the first card slot is arranged close to the first card port;

[0054] A first clamping block, wherein the first clamping block is installed in the first clamping slot through a second spring;

[0055] A first elastic rope, one end of which is connected to the floating plate, and the other end of which passes through the mixing chamber, the baffle, the first spring, the second spring and is connected to the first clamping block, and a square hole is reserved on the baffle for the first elastic rope to pass through;

[0056] A conductive seat, the conductive seat is installed on the top of the mounting seat;

[0057] A first conductive column and a second conductive column, wherein the first conductive column and the second conductive column are installed on the top of the conductive base;

[0058] A conductive rod, the conductive rod being hinged to the first conductive column;

[0059] A guide block, the guide block is installed at the end of the conductive rod away from the first conductive column;

[0060] a second transverse groove, wherein the second transverse groove is formed on the guide block;

[0061] A rotating shaft, wherein the rotating shaft is slidably connected in the second transverse groove;

[0062] A transmission block installation chamber, the transmission block installation chamber is located in the installation seat, and the transmission block installation chamber is located above the mixing chamber;

[0063] A transmission block, the transmission block is vertically slidably connected in the transmission block installation chamber;

[0064] A transmission rod, one end of which is connected to the rotating shaft, and the other end of which passes through a transmission block installation chamber and is connected to the transmission block;

[0065] A third spring, wherein the third spring is sleeved on the transmission rod, one end of the third spring is connected to the inner wall of the transmission block installation chamber, and the other end of the third spring is connected to the transmission block;

[0066] A vertical groove, the vertical groove is opened on the inner wall of the mixing chamber near the top;

[0067] A second channel, the second channel communicating with the vertical slot and the transmission block installation chamber;

[0068] A second card slot, wherein the second card slot is provided on the transmission block and is disposed close to the second channel;

[0069] a second clamping block, wherein the second clamping block is installed in the second clamping slot through a fourth spring;

[0070] a wedge block, the wedge block being slidably connected in the second channel;

[0071] A push rod, which is inserted into the vertical slot and has an oblique opening adapted to fit the wedge block;

[0072] a second elastic rope, one end of which is connected to the transmission block, and the other end of which passes through the transmission block installation chamber, the mixing chamber and is connected to the floating plate;

[0073] A water inlet channel with a pump, the water inlet channel with a pump is penetrated from the top of the mounting seat and communicated with the first slot, and the pump conductive end of the water inlet channel with a pump is connected to the first conductive column and the second conductive column through a wire respectively;

[0074] A water outlet pipeline is connected to the mixing chamber from the side end of the mounting seat, and the water outlet pipeline is connected to the stirring tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0075] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0076] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ;

[0077] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ;

[0078] Figure 3 It is a flow chart of the present invention;

[0079] Figure 4 This is a schematic diagram of the structure of the scraping unit in the present invention;

[0080] Figure 5 The overall structure of the present invention is shown in FIG. Figure 3 ;

[0081] Figure 6 This is a schematic diagram of the coagulant addition unit structure in the present invention;

[0082] Figure 7 for Figure 6 The enlarged view of the middle label A;

[0083] Figure 8 for Figure 6 Enlarged view of the number B.

[0084] In the figure: 1. Tank body; 2. Mixing tank; 3. Primary filter tank; 4. Secondary filter tank; 5. Clean water tank; 6. Partition plate; 7. Sewage pump feeding unit; 8. Bubble water generating unit; 9. Slag scraping unit; 11. Sewage outlet; 12. Drain outlet; 13. Water inlet channel with pump; 14. Water outlet pipeline; 71. Mixing tank; 72. Sewage inlet pipe; 73. Pipeline with sewage pump; 74. Coagulant adding unit; 81. Pressurization Pump; 82. Water supply end; 83. Air supply end; 84. Dissolved gas tank; 85. Air compressor; 91. Frame; 92. Transmission shaft; 93. Transmission chain belt; 94. Scraper; 95. Oil collecting tank; 96. Oil drain port; 741. Mounting seat; 742. Mixing chamber; 743. Coagulant adding chamber; 744. Coagulant adding port; 745. First chamber; 746. First inlet; 747. Second inlet; 748. Slider ; 749. Mounting pipe; 740. Water collecting bucket; 751. Vertical pipe; 752. Floating plate; 753. Water return channel; 754. Baffle mounting chamber; 755. Mounting block; 756. First spring; 757. Baffle; 758. First bayonet; 759. First slot; 750. First block; 761. Second spring; 762. First elastic rope; 763. Conductive seat; 764. First conductive column; 765. The second conductive column; 766. The conductive rod; 767. The guide block; 768. The second transverse groove; 769. The rotating shaft; 760. The transmission block installation chamber; 771. The transmission rod; 772. The third spring; 773. The vertical groove; 774. The second channel; 775. The second slot; 776. The second block; 777. The fourth spring; 778. The top rod; 779. The second elastic rope; 770. The transmission block; 781. The wedge block. DETAILED DESCRIPTION

[0085] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0086] Example

[0087] The present invention will be further described below in conjunction with the accompanying drawings.

[0088] like Figures 1 to 5 As shown, this embodiment provides an oil-water separator, comprising:

[0089] A tank body 1, wherein a mixing tank 2, a primary filter tank 3, a secondary filter tank 4, and a clean water tank 5 are sequentially arranged in the tank body 1 along the flow direction of the sewage;

[0090] The mixing tank 2, the primary filter tank 3, the secondary filter tank 4, and the clean water tank 5 are separated by the partitions 6, and the adjacent partitions 6 are staggered to form an S-shaped flow channel;

[0091] A sewage pumping unit 7, wherein the sewage pumping unit 7 is connected to the mixing tank 2 from outside the tank body 1;

[0092] A bubble water generating unit 8, wherein the bubble water generating unit 8 is connected from the outside of the pool body 1 to a position near the bottom of the mixing pool 2;

[0093] The scraping unit 9 is installed at the pool opening of the pool body 1 , and is used to collect floating scum on the pool surface in the pool body 1 .

[0094] In one embodiment, the bubble water generating unit 8 comprises:

[0095] A pressure pump 81, wherein the outlet of the pressure pump 81 is connected to a position near the bottom of the mixing tank 2 from outside the tank body 1 through a pipeline;

[0096] A water supply end 82, wherein the water supply end 82 is connected to an inlet end of a pressure pump 81;

[0097] The air supply end 83 is connected to the other inlet end of the pressure pump 81 .

[0098] In one embodiment, the water supply end 82 is a water tank.

[0099] In one embodiment, the air supply end 83 is composed of a dissolved air tank 84 and an air compressor 85. The air inlet end of the dissolved air tank 84 is connected to the air compressor 85 through a pipeline, and the air outlet end of the dissolved air tank 84 is connected to the other inlet end of the booster pump 81 through a pipeline.

[0100] In one embodiment, water inlet channels are reserved between the bottom end of the partition 6 between the mixing tank 2 and the primary filtration tank 3 and the bottom of the tank body 1 , and between the bottom end of the partition 6 between the secondary filtration tank 4 and the clear water tank 5 and the bottom of the tank body 1 .

[0101] In one embodiment, the scraping unit 9 comprises:

[0102] A frame 91, wherein the frame 91 is installed at the pool opening of the pool body 1;

[0103] A transmission shaft 92, wherein two transmission shafts 92 are arranged on a frame 91 in parallel along the sewage flow direction;

[0104] A transmission chain belt 93, wherein the transmission chain belt 93 is sleeved on the two transmission shafts 92;

[0105] Scrapers 94, a plurality of the scrapers 94 are equidistantly arranged on the transmission chain belt 93, the scrapers 94 are located on the pool surfaces of the mixing pool 2, the primary filtration pool 3, and the secondary filtration pool 4, and the scrapers 94 are provided with slots for the partitions 6 to penetrate;

[0106] An oil collecting tank 95, wherein the oil collecting tank 95 is installed in the tank body 1 near the tank mouth;

[0107] The oil drain port 96 is connected to the outer wall of the tank body 1 near the tank opening, and the oil drain port 96 is connected to the oil collecting tank 95 .

[0108] In one embodiment, the sewage pumping unit 7 comprises:

[0109] Mixing tank 71;

[0110] A sewage inlet pipe 72, wherein the sewage inlet pipe 72 is connected to the stirring tank 71;

[0111] A sewage pump pipeline 73, one end of which is connected to the stirring tank 71, and the other end of which is connected to the mixing tank 2 from the outside of the tank body 1;

[0112] The coagulant adding unit 74 is installed above the stirring tank 71 and is used to add coagulant into the stirring tank 71 .

[0113] In one embodiment, a sewage outlet 11 is connected to the side end of the pool body 1 near the pool bottom, and a drain outlet 12 is connected to the side end of the pool body 1 near the pool opening. The drain outlet 12 is connected to the clean water pool 5.

[0114] The working principle and beneficial effects of the present invention are:

[0115] The oily wastewater is sent into the mixing tank 71 from the sewage inlet pipe 72, and the coagulant adding unit 74 is added into the mixing tank 71, so as to adhere to the surface of the oil liquid. The sewage pump pipeline 73 sends the oily wastewater into the mixing tank 2. At this time, the air compressor 85 works to send the pressurized gas into the dissolved gas tank 84. The pressure pump 81 pressurizes and mixes the pressurized gas in the dissolved gas tank 84 and the water at the water supply end 82 into bubble water, forming evenly distributed bubbles, and inputs them into the mixing tank 2 to generate a large number of fine bubbles. The oily wastewater to be treated introduced into the mixing tank is subjected to rapid solid-liquid separation by adding a coagulant and utilizing the buoyancy of bubbles adhering to solid impurities, and the concentration degree of scum is increased. The materials floating on the surface of the mixing tank 2, the primary filter tank 3, and the secondary filter tank 4 are scraped out by the scraper unit 9, and the scraper 94, under the action of the transmission chain belt 93, scrapes the scum into the oil collecting tank 95, and the clean water in the clean water tank 5 is discharged from the drainage outlet 12, and the water that sinks to the bottom is discharged through the sewage outlet 11.

[0116] like Figures 6 to 8 As shown, in an optional embodiment provided by the present invention, the coagulant adding unit 74 includes:

[0117] A mounting seat 741, wherein the mounting seat 741 is installed above the stirring tank 71;

[0118] A mixing chamber 742, wherein the mixing chamber 742 is located in the mounting seat 741;

[0119] A coagulant adding chamber 743, wherein the coagulant adding chamber 743 is located in the mounting seat 741, and the coagulant adding chamber 743 is arranged in parallel with the mixing chamber 742;

[0120] A coagulant adding port 744, the coagulant adding port 744 is located at a side end of the mounting seat 741, and the coagulant adding port 744 is connected to the coagulant adding chamber 743;

[0121] A first chamber 745, wherein the first chamber 745 is located in the mounting seat 741, and the first chamber 745 is located above the mixing chamber 742 and the coagulant adding chamber 743;

[0122] A first inlet 746 , the first inlet 746 is connected to the first chamber 745 and the mixing chamber 742 ;

[0123] A second inlet 747, wherein the second inlet 747 is connected to the first chamber 745 and the coagulant adding chamber 743;

[0124] A slider 748, wherein the slider 748 is slidably connected in a transverse direction in the first chamber 745;

[0125] A first slot, the first slot being opened at the center of the top of the slider 748;

[0126] First channel, two first channels are symmetrically opened at the bottom end of the slider 748, the first channels are connected to the bottom end of the first slot, the two first channels are arranged in a gradually converging and inclined manner near the first slot end, one of the first channels is arranged away from the first slot end and close to the first inlet 746, and the other first channel is arranged away from the first slot end and close to the second inlet 747;

[0127] A mounting tube 749, wherein the mounting tube 749 is horizontally connected to a side end of the slider 748, and an inner wall of the mounting tube 749 is connected with an internal thread;

[0128] A first transverse groove, wherein the first transverse groove is formed on the inner wall of the first chamber 745, and the end of the mounting tube 749 away from the slider 748 is connected to the first transverse groove;

[0129] A driving motor, wherein the driving motor is installed in the first transverse groove;

[0130] A screw rod, the screw rod is connected to the output end of the driving motor, and the screw rod is inserted into the mounting tube 749;

[0131] A water collecting bucket 740, wherein the water collecting bucket 740 is installed in the mixing chamber 742 near the top, and the water collecting bucket 740 is connected to the first inlet 746;

[0132] A vertical pipe 751, wherein the vertical pipe 751 is connected to the bottom end of the water collecting bucket 740;

[0133] A floating plate 752, wherein the floating plate 752 is located in the mixing chamber 742, and the floating plate 752 is penetrated by the end of the vertical pipe 751 away from the water collecting bucket 740;

[0134] A water return channel 753, wherein the water return channel 753 is connected to the mixing chamber 742 and the coagulant addition chamber 743;

[0135] A baffle installation chamber 754, wherein the baffle installation chamber 754 is located in the installation seat 741, and the baffle installation chamber 754 is located below the water return channel 753;

[0136] A mounting block 755, wherein the mounting block 755 is vertically slidably connected in the baffle mounting chamber 754;

[0137] A first spring 756, one end of which is connected to the top of the mounting block 755, and the other end of which is connected to the top of the inner wall of the baffle mounting chamber 754;

[0138] The baffle plate 757 is vertically mounted on the mounting block 755. The end of the baffle plate 757 away from the mounting block 755 is penetrated by a baffle mounting chamber 754 and connected to the return water channel 753. The baffle plate 757 is provided with a return water hole adapted to the return water channel 753;

[0139] A first bayonet 758, wherein the first bayonet 758 is provided on the inner wall of the baffle installation chamber 754;

[0140] A first card slot 759, which is provided on the mounting block 755 and is disposed close to the first card opening 758;

[0141] A first clamping block 750, wherein the first clamping block 750 is installed in the first clamping slot 759 through a second spring 761;

[0142] A first elastic rope 762, one end of which is connected to the floating plate 752, and the other end of which passes through the mixing chamber 742, the baffle 757, the first spring 756, the second spring 761 and is connected to the first clamping block 750, and a square hole is reserved on the baffle 757 for the first elastic rope 762 to pass through;

[0143] A conductive seat 763, wherein the conductive seat 763 is installed on the top of the mounting seat 741;

[0144] A first conductive column 764 and a second conductive column 765 , wherein the first conductive column 764 and the second conductive column 765 are installed on the top of the conductive seat 763 ;

[0145] A conductive rod 766, wherein the conductive rod 766 is hinged to the first conductive column 764;

[0146] A guide block 767, wherein the guide block 767 is installed at an end of the conductive rod 766 away from the first conductive column 764;

[0147] A second transverse groove 768, wherein the second transverse groove 768 is formed on the guide block 767;

[0148] A rotating shaft 769, wherein the rotating shaft 769 is slidably connected in the second transverse groove 768;

[0149] A transmission block installation chamber 760, wherein the transmission block installation chamber 760 is located in the installation seat 741, and the transmission block installation chamber 760 is located above the mixing chamber 742;

[0150] A transmission block 770, wherein the transmission block 770 is vertically slidably connected in the transmission block installation chamber 760;

[0151] A transmission rod 771, one end of which is connected to the rotating shaft 769, and the other end of which passes through the transmission block installation chamber 760 and is connected to the transmission block 770;

[0152] A third spring 772, wherein the third spring 772 is sleeved on the transmission rod 771, one end of the third spring 772 is connected to the inner wall of the transmission block installation chamber 760, and the other end of the third spring 772 is connected to the transmission block 770;

[0153] A vertical groove 773, wherein the vertical groove 773 is formed on the inner wall of the mixing chamber 742 near the top;

[0154] A second channel 774, wherein the second channel 774 is connected to the vertical slot 773 and the transmission block installation chamber 760;

[0155] A second slot 775, wherein the second slot 775 is provided on the transmission block 770, and the second slot 775 is provided close to the second channel 774;

[0156] A second clamping block 776, wherein the second clamping block 776 is installed in the second clamping slot 775 through a fourth spring 777;

[0157] A wedge block 781, wherein the wedge block 781 is slidably connected in the second channel 774;

[0158] A push rod 778, the push rod 778 is inserted into the vertical slot 773, and the push rod 778 is provided with an oblique opening adapted to the wedge block 781;

[0159] A second elastic rope 779, one end of which is connected to the transmission block 770, and the other end of which passes through the transmission block installation chamber 760, the mixing chamber 742 and is connected to the floating plate 752;

[0160] A pump water inlet channel 13, wherein the pump water inlet channel 13 is provided from the top of the mounting seat 741 and communicates with the first slot, and the pump conductive end of the pump water inlet channel 13 is connected to the first conductive column 764 and the second conductive column 765 through a wire respectively;

[0161] The water outlet pipe 14 is connected to the mixing chamber 742 from the side end of the mounting seat 741 , and the water outlet pipe 14 is connected to the stirring tank 71 .

[0162] The working principle and beneficial effects of this embodiment are as follows:

[0163] The coagulant is fed into the coagulant adding chamber 743 through the coagulant adding port 744. At this time, the driving motor drives the mounting tube 749 and the slider 748 connected to the mounting tube 749 to slide in the first chamber 745 through the screw. At this time, another of the first channels is connected to the second inlet 747. The pump water inlet channel 13 feeds water into the coagulant adding chamber 743 through the first slot, another of the first channels and the second inlet 747, so as to mix with the coagulant to form a coagulant solution. When the water level in the coagulant adding chamber 743 is about to reach the coagulant adding port 744, the driving motor drives the mounting tube 749 and the slider 748 connected to the mounting tube 749 to slide in the first chamber 745. At this time, another of the first channels is connected to the second inlet 747. The pump water inlet channel 13 feeds water into the coagulant adding chamber 743 through the first slot, another of the first channels and the second inlet 747. The motor drives the mounting tube 749 and the slider 748 connected to the mounting tube 749 to slide in the opposite direction in the first chamber 745 through the screw rod. One of the first channels is connected to the first inlet 746. The pump water inlet channel 13 sends water into the mixing chamber 742 through the first slot, one of the first channels, the first inlet 746, the water collecting bucket 740, and the vertical pipe 751. The floating plate 752 rises with the water level in the mixing chamber 742, and then pulls the first clamping block 750 back into the first clamping groove 759 through the first elastic rope 762, and the first clamping block 750 is disengaged from the first clamping port 758. , the first spring 756 and the second spring 761 contract, the baffle 757 rises, the mixing chamber 742 is connected with the return water channel 753, the coagulant liquid in the coagulant adding chamber 743 is sent to the mixing chamber 742 for secondary mixing, when the floating plate 752 rises to be close to the top rod 778, the top rod 778 rises in the vertical groove 773, the oblique mouth disengages the wedge block 781, the wedge block 781 drives the second card block 776 to retract into the second card groove 775, the fourth spring 777 contracts, at this time, under the action of the third spring 772, the transmission rod 771 rises, thereby driving the guide block 767 to lift, and the conductive rod 766 detaches from the second conductive column 765, the closed circuit is disconnected, the pump with the pump water inlet channel 13 loses power and stops working, and the coagulant liquid in the mixing chamber 742 is sent into the stirring tank 71 from the outlet pipe 14. When the water level in the mixing chamber 742 drops to a certain height, the float 752 drags the transmission block 770 to descend in the transmission block installation chamber 760 through the second elastic rope 779, the third spring 772 is stretched, the transmission rod 771 drives the guide block 767 to descend, and the conductive rod 766 contacts the second conductive column 765. The circuit is closed again, and the pump with the pump water inlet channel 13 is energized and continues to work.

[0164] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. An oil-water separator, characterized in that: include: A tank body (1), wherein a mixing tank (2), a primary filtering tank (3), a secondary filtering tank (4), and a clear water tank (5) are sequentially arranged in the tank body (1) along the flow direction of sewage; A partition (6), wherein the mixing tank (2), the primary filtering tank (3), the secondary filtering tank (4), and the clean water tank (5) are separated by the partition (6), and adjacent partitions (6) are staggered to form an S-shaped flow channel; A sewage pumping unit (7), wherein the sewage pumping unit (7) is connected to the mixing tank (2) from outside the tank body (1); A bubble water generating unit (8), wherein the bubble water generating unit (8) is connected from the outside of the pool body (1) to a position near the bottom of the mixing pool (2); A scraping unit (9), the scraping unit (9) being installed at the pool opening of the pool body (1), and the scraping unit (9) being used to collect floating scum on the pool surface in the pool body (1); The sewage pumping unit (7) comprises: Stirring tank (71); A sewage inlet pipe (72), wherein the sewage inlet pipe (72) is connected to the stirring tank (71); A sewage pump pipeline (73), one end of which is connected to the stirring tank (71), and the other end of which is connected to the mixing tank (2) from the outside of the tank body (1); A coagulant adding unit (74), the coagulant adding unit (74) being installed above the stirring tank (71) and used for adding a coagulant into the stirring tank (71); The coagulant adding unit (74) comprises: A mounting seat (741), wherein the mounting seat (741) is mounted above the stirring tank (71); A mixing chamber (742), wherein the mixing chamber (742) is located in the mounting seat (741); A coagulant adding chamber (743), wherein the coagulant adding chamber (743) is located in the mounting seat (741), and the coagulant adding chamber (743) and the mixing chamber (742) are arranged in parallel; A coagulant addition port (744), the coagulant addition port (744) is located at a side end of the mounting seat (741), and the coagulant addition port (744) is connected to the coagulant addition chamber (743); A first chamber (745), wherein the first chamber (745) is located in the mounting seat (741), and the first chamber (745) is located above the mixing chamber (742) and the coagulant addition chamber (743); A first inlet (746), the first inlet (746) is connected to the first chamber (745) and the mixing chamber (742); A second inlet (747), wherein the second inlet (747) is connected to the first chamber (745) and the coagulant addition chamber (743); A slider (748), the slider (748) being laterally slidably connected in the first chamber (745); A first slot, the first slot being opened at a center position of a top end of the slider (748); A first channel, wherein two of the first channels are symmetrically opened at the bottom end of the slider (748), the first channels are connected to the bottom end of the first slot, the two first channels are arranged in a gradually converging and inclined manner near the first slot end, one of the first channels is arranged away from the first slot end and close to the first inlet (746), and the other of the first channels is arranged away from the first slot end and close to the second inlet (747); A mounting tube (749), wherein the mounting tube (749) is horizontally connected to a side end of the slider (748), and an inner wall of the mounting tube (749) is connected with an internal thread; A first transverse groove, wherein the first transverse groove is formed on the inner wall of the first chamber (745), and the end of the mounting tube (749) away from the slider (748) is connected to the first transverse groove; A driving motor, wherein the driving motor is installed in the first transverse groove; A screw rod, the screw rod being connected to an output end of a driving motor and being passed through a mounting tube (749); A water collecting hopper (740), the water collecting hopper (740) is installed in the mixing chamber (742) near the top, and the water collecting hopper (740) is connected to the first inlet (746); A vertical pipe (751), wherein the vertical pipe (751) is connected to the bottom end of the water collecting bucket (740); A floating plate (752), wherein the floating plate (752) is located in the mixing chamber (742), and the floating plate (752) is penetrated by the end of the vertical pipe (751) away from the water collecting bucket (740); A water return channel (753), wherein the water return channel (753) is connected to the mixing chamber (742) and the coagulant addition chamber (743); A baffle installation chamber (754), wherein the baffle installation chamber (754) is located in the installation seat (741), and the baffle installation chamber (754) is located below the water return channel (753); A mounting block (755), wherein the mounting block (755) is vertically slidably connected in the baffle mounting chamber (754); A first spring (756), one end of the first spring (756) is connected to the top of the mounting block (755), and the other end of the first spring (756) is connected to the top of the inner wall of the baffle mounting chamber (754); A baffle (757), wherein the baffle (757) is vertically mounted on the mounting block (755), and an end of the baffle (757) away from the mounting block (755) is provided with a baffle mounting chamber (754) connected to the return water channel (753), and a return water hole adapted to the return water channel (753) is provided on the baffle (757); A first bayonet (758), wherein the first bayonet (758) is formed on the inner wall of the baffle installation chamber (754); A first card slot (759), wherein the first card slot (759) is provided on the mounting block (755), and the first card slot (759) is arranged close to the first card port (758); A first clamping block (750), wherein the first clamping block (750) is installed in the first clamping slot (759) via a second spring (761); a first elastic rope (762), one end of which is connected to the floating plate (752), and the other end of which passes through the mixing chamber (742), the baffle (757), the first spring (756), The second spring (761) is connected to the first clamping block (750), and a square hole for the first elastic rope (762) to pass through is reserved on the baffle (757); A conductive seat (763), wherein the conductive seat (763) is mounted on the top of the mounting seat (741); A first conductive column (764) and a second conductive column (765), wherein the first conductive column (764) and the second conductive column (765) are installed on the top of the conductive seat (763); A conductive rod (766), wherein the conductive rod (766) is hingedly connected to the first conductive column (764); A guide block (767), wherein the guide block (767) is installed on the end of the conductive rod (766) away from the first conductive column (764); A second transverse groove (768), wherein the second transverse groove (768) is formed on the guide block (767); A rotating shaft (769), wherein the rotating shaft (769) is slidably connected in the second transverse groove (768); A transmission block installation chamber (760), wherein the transmission block installation chamber (760) is located in the installation seat (741), and the transmission block installation chamber (760) is located above the mixing chamber (742); A transmission block (770), wherein the transmission block (770) is vertically slidably connected in the transmission block installation chamber (760); A transmission rod (771), one end of the transmission rod (771) is connected to the rotating shaft (769), and the other end of the transmission rod (771) passes through the transmission block installation chamber (760) and is connected to the transmission block (770); A third spring (772), wherein the third spring (772) is sleeved on the transmission rod (771), one end of the third spring (772) is connected to the inner wall of the transmission block installation chamber (760), and the other end of the third spring (772) is connected to the transmission block (770); A vertical groove (773), wherein the vertical groove (773) is formed on the inner wall of the mixing chamber (742) near the top; A second channel (774), wherein the second channel (774) is connected to the vertical slot (773) and the transmission block installation chamber (760); A second card slot (775), wherein the second card slot (775) is provided on the transmission block (770), and the second card slot (775) is arranged close to the second channel (774); A second clamping block (776), wherein the second clamping block (776) is installed in the second clamping slot (775) via a fourth spring (777); A wedge block (781), wherein the wedge block (781) is slidably connected in the second channel (774); A push rod (778), the push rod (778) is inserted into the vertical groove (773), and the push rod (778) is provided with an oblique opening adapted to be provided with a wedge block (781); A second elastic rope (779), one end of the second elastic rope (779) is connected to the transmission block (770), and the other end of the second elastic rope (779) passes through the transmission block installation chamber (760), the mixing chamber (742) and is connected to the floating plate (752); A pump water inlet channel (13), the pump water inlet channel (13) is arranged from the top of the mounting seat (741) to be connected to the first slot, and the pump conductive end of the pump water inlet channel (13) is connected to the first conductive column (764) and the second conductive column (765) respectively through a wire; A water outlet pipeline (14), wherein the water outlet pipeline (14) is connected to the mixing chamber (742) from the side end of the mounting seat (741), and the water outlet pipeline (14) is connected to the stirring tank (71).

2. The oil-water separator according to claim 1, characterized in that: The bubble water generating unit (8) comprises: A pressure pump (81), wherein the outlet end of the pressure pump (81) is connected to a position near the bottom end of the mixing tank (2) from outside the tank body (1) through a pipeline; A water supply end (82), the water supply end (82) being connected to an inlet end of a pressure pump (81); An air supply end (83), wherein the air supply end (83) is connected to the other inlet end of the pressure pump (81).

3. An oil-water separator according to claim 2, characterized in that: The water supply end (82) is a water tank.

4. The oil-water separator according to claim 2, characterized in that: The air supply end (83) is composed of an air dissolving tank (84) and an air compressor (85). The air inlet end of the air dissolving tank (84) is connected to the air compressor (85) through a pipeline, and the air outlet end of the air dissolving tank (84) is connected to the other inlet end of the booster pump (81) through a pipeline.

5. The oil-water separator according to claim 1, characterized in that: Water inlet channels are reserved between the bottom end of the partition (6) between the mixing tank (2) and the primary filtering tank (3) and the bottom of the tank body (1), and between the bottom end of the partition (6) between the secondary filtering tank (4) and the clean water tank (5) and the bottom of the tank body (1).

6. The oil-water separator according to claim 1, characterized in that: The scraping unit (9) comprises: A frame (91), wherein the frame (91) is installed at the pool opening of the pool body (1); A transmission shaft (92), wherein two transmission shafts (92) are arranged in parallel on a frame (91) along the flow direction of sewage; A transmission chain belt (93), wherein the transmission chain belt (93) is sleeved on the two transmission shafts (92); A scraper (94), wherein a plurality of the scrapers (94) are arranged at equal distances on the transmission chain belt (93), the scrapers (94) are located on the pool surfaces of the mixing pool (2), the primary filtering pool (3), and the secondary filtering pool (4), and the scrapers (94) are provided with slots for the partitions (6) to pass through; An oil collecting tank (95), the oil collecting tank (95) being installed in the tank body (1) near the tank opening; An oil discharge port (96) is connected to the outer wall of the tank body (1) near the tank opening, and the oil discharge port (96) is communicated with the oil collecting tank (95).

7. The oil-water separator according to claim 1, characterized in that: The pool body (1) side The end of the pool body (1) is connected to a sewage outlet (11) near the pool bottom, and the side end of the pool body (1) is connected to a drainage outlet (12) near the pool opening. The drainage port (12) is connected to the clean water tank (5).

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