Petrochemical wastewater efficient air flotation separation equipment

Abstract

The utility model relates to the technical field of wastewater treatment, in particular to efficient air flotation separation equipment for petrochemical wastewater, which comprises an air flotation box and further comprises ventilation pipes which are fixedly mounted at the right end of the inner side of the air flotation box and are symmetrically arranged, and a plurality of air nozzles which are distributed at equal intervals are obliquely arranged on one side of each ventilation pipe; the supporting legs are fixedly installed at the left end and the right end of the bottom of the air floating box, and supporting frames are fixedly installed at the lower ends of the inner sides of the supporting legs. Under the action of the driving motor, the rotating shaft, the air blowing cylinder, the driving bevel gear and the driven bevel gear, the air flotation separation equipment has the advantage of efficient treatment, and solves the problem that the existing petrochemical wastewater air flotation separation equipment is difficult to clean in the use process. The scum with relatively high viscosity is easy to adhere to the surface of a scraping plate and then enters the air flotation separation equipment again, and the back mixing of the scum can enable the oil content of effluent to rebound and the concentration of suspended matters to increase, so that the treatment efficiency of the air flotation separation equipment is influenced.

Description

TECHNICAL FIELD

[0001] The utility model relates to wastewater treatment technical field, concretely is a kind of petroleum chemical industry wastewater efficient air floatation separation equipment. BACKGROUND

[0002] Petroleum chemical industry wastewater refers to the wastewater generated by petroleum chemical plant in production process. These wastewater includes production wastewater, cooling water and other water, with the characteristics of large water quantity, complex component, high organic content, containing various heavy metals, etc., and petroleum chemical enterprises generate different types of wastewater through different production processes, such as petroleum refining, petroleum chemical industry, chemical fiber production and chemical fertilizer manufacturing, and the air floatation separation equipment is commonly used to treat petroleum chemical industry wastewater.

[0003] At present, the existing petroleum chemical industry wastewater air floatation separation equipment needs to use scraper to remove the dregs after air floatation separation during use, but the air floatation separation equipment lacks the ability to clean the dregs adhered to the surface of scraper, so that the dregs with relatively high viscosity are easy to re-enter the air floatation separation equipment due to adhesion on the surface of scraper, and the backmixing of dregs can cause the rebound of oil content in effluent and the increase of suspended solids concentration, thereby affecting the treatment efficiency of air floatation separation equipment, therefore, we propose a kind of petroleum chemical industry wastewater efficient air floatation separation equipment. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of petroleum chemical industry wastewater efficient air floatation separation equipment, with the advantage of efficient treatment, solve the existing petroleum chemical industry wastewater air floatation separation equipment in the process of use, need to use scraper to remove the dregs after air floatation separation, but the air floatation separation equipment lacks the ability to clean the dregs adhered to the surface of scraper, so that the dregs with relatively high viscosity are easy to re-enter the air floatation separation equipment due to adhesion on the surface of scraper, and the backmixing of dregs can cause the rebound of oil content in effluent and the increase of suspended solids concentration, thereby affecting the treatment efficiency of air floatation separation equipment.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a kind of petroleum chemical industry wastewater efficient air floatation separation equipment, including air floatation tank, still including:

[0006] Air pipe is fixedly installed to the right end of the inner side of air floatation tank, and symmetrically arranged, and the side of air pipe is obliquely provided with a plurality of equidistantly distributed air jets;

[0007] The support leg is fixedly installed at the left and right ends of the air floating box bottom, the lower end of the inner side of the support leg is fixedly installed with a support frame, the lower end of the one side of the support leg is fixedly installed with a support base, the right end of the support base is fixedly installed with a blast cylinder, the inner surface of the support base is movably connected with a rotating shaft through a bearing, the rear side of the rotating shaft is fixedly installed with a driven bevel gear, the front end of the outer surface of the rotating shaft and the driving shaft is fixedly installed with a second sprocket, and the outer side of the second sprocket is sleeved with a driving chain.

[0008] The driving motor is fixedly installed at the top of the support frame, the output end of the driving motor is fixedly connected with a rotating shaft, the outer surface of the rotating shaft is fixedly connected with a driving bevel gear meshing with the driven bevel gear, the right side of the rotating shaft is fixedly connected with a driving plate, the lower end of the right side of the driving plate is fixedly connected with a guide pin shaft, the inner side of the blast cylinder is movably connected with a sealing plug, one side of the sealing plug is fixedly connected with a connecting rod, and one side of the connecting rod is fixedly connected with a guide frame.

[0009] Preferably, the lower end of one side of the blast cylinder is communicated with an air suction pipe, one end of the air suction pipe is communicated with a second one-way valve, the middle end of one side of the blast cylinder is communicated with an air guide pipe, the other end of the air guide pipe is communicated with the rear end of the air pipe, and one end of the air guide pipe close to the blast cylinder is communicated with a first one-way valve.

[0010] Preferably, the left end of the inner cavity of the air floating box is movably connected with an auxiliary rotating shaft through a bearing, the right end of the inner cavity of the air floating box is movably connected with a driving rotating shaft through a bearing, the front and rear ends of the outer surfaces of the driving rotating shaft and the auxiliary rotating shaft are fixedly installed with a first sprocket, the outer side of the first sprocket is sleeved with a scraper chain, and the outer surface of the scraper chain is fixedly connected with an elastic scraper.

[0011] Preferably, the guide frame and the guide pin shaft are matched, and the guide pin shaft slides in the inner side of the guide frame.

[0012] Preferably, the left end of the bottom of the inner cavity of the air floating box is fixedly installed with a dispersion plate, the left side of the support frame is provided with a nano bubble generator, and the exhaust end of the nano bubble generator is communicated with the left end of the top of the dispersion plate through a pipeline.

[0013] Preferably, the right end of the inner cavity of the air floating box is provided with a partition plate, the right end of the rear side of the air floating box is communicated with a discharge pipe, and the inner surface of the discharge pipe is provided with a valve body.

[0014] Preferably, the left end of the top of the air float tank is fixedly provided with an electrolytic tank, the right end of the top of the electrolytic tank is provided with an electrode plate extending into the electrolytic tank, the left end of the top of the electrolytic tank is hung with a filter screen groove, the upper end of the left side of the electrolytic tank is provided with a liquid inlet pipe extending into the filter screen groove, the lower end of the left side of the electrolytic tank is communicated with a blowdown pipe, one end of the blowdown pipe is provided with a blowdown valve, and the bottom of the electrolytic tank is communicated with a liquid outlet pipe.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] 1. When the driving motor drives the rotating shaft to rotate, the rotating shaft drives the driving conical gear and the driving plate to rotate, and when the driving plate drives the guide pin shaft to slide in the guide frame, the guide frame can drive the two sealing plugs to pull out in the corresponding air blowers through the connecting rod, so that after the air blowers suck external air through the air inlet pipe and the second one-way valve, the external air can be sent into the air vent pipe through the second one-way valve and the air guide pipe and discharged outward through the air jet nozzle, and the two air blowers can blow alternately, thereby ensuring the continuity of the pressurized exhaust of the air jet nozzle.

[0017] 2. The rotation of the driving conical gear can drive the rotating shaft to rotate through the meshing connection of the driven conical gear, and the rotating shaft can drive the driving shaft to rotate through the second sprocket and the driving chain when the rotating shaft rotates, and the first sprocket and the scraper chain can drive the auxiliary shaft and the elastic scraper to rotate, and when the elastic scraper contacts the inclined surface on the upper end of the partition plate, the removal of the scum can be completed, so that the scum can enter the right end of the air float tank, and when the elastic scraper that removes the scum enters the pressurized exhaust cleaning area of the air jet nozzle, the cleaning work of both sides of the elastic scraper can be completed, thereby avoiding the mixing of the scum and improving the processing efficiency of the device. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a first view angle structure schematic diagram of the utility model;

[0019] Figure 2 It is a second view angle structure schematic diagram of the utility model;

[0020] Figure 3 It is an explosion structure schematic diagram of the utility model;

[0021] Figure 4 It is a cooperation structure schematic diagram of the auxiliary shaft and the driving motor of the utility model.

[0022] In the figure: 1, air floatation box; 101, support leg; 102, support frame; 103, air pipe; 104, partition; 105, discharge pipe; 106, drive chain; 2, electrolysis box; 201, filter screen groove; 202, liquid inlet pipe; 203, polar plate; 204, blowdown pipe; 205, liquid outlet pipe; 3, support base; 301, guide frame; 302, blast cylinder; 303, drive motor; 304, drive plate; 305, rotating shaft; 306, drive bevel gear; 307, guide pin shaft; 308, sealing plug; 309, first one-way valve; 310, air guide pipe; 311, connecting rod; 4, auxiliary rotating shaft; 401, drive rotating shaft; 402, elastic scraper; 403, first sprocket; 404, scraper chain; 405, air jet nozzle; 406, driven bevel gear; 407, second sprocket; 408, air suction pipe; 409, second one-way valve; 410, rotating shaft; 5, nano bubble generator; 501, dispersion plate. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] In the description of the present application, unless otherwise specified, the meaning of "multiple" is two or more; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] The air floatation box 1, the support leg 101, the support frame 102, the air pipe 103, the partition plate 104, the discharge pipe 105, the drive chain 106, the electrolytic box 2, the filter screen groove 201, the liquid inlet pipe 202, the polar plate 203, the sewage pipe 204, the liquid outlet pipe 205, the support seat 3, the guide frame 301, the air blowing cylinder 302, the drive motor 303, the drive plate 304, the rotating shaft 305, the drive bevel gear 306, the guide pin shaft 307, the sealing plug 308, the first one-way valve 309, the air guide pipe 310, the connecting rod 311, the auxiliary rotating shaft 4, the drive rotating shaft 401, the elastic scraper 402, the first sprocket 403, the scraper chain 404, the air jet nozzle 405, the driven bevel gear 406, the second sprocket 407, the air suction pipe 408, the second one-way valve 409, the rotating shaft 410, the nano bubble generator 5 and the dispersion plate 501 are all general standard parts or parts known by those skilled in the art, and the structure and principle thereof can be known by technical personnel through a technical manual or through a conventional experimental method.

[0027] Embodiment one

[0028] Please refer to Figures 1-4 As shown in the figure, the utility model provides a technical scheme: a kind of petroleum chemical wastewater efficient air floatation separation equipment, including air floatation box 1, still including:

[0029] Air pipe 103 is fixedly installed to the right end of the inner side of air floatation box 1, and symmetrically arranged, and a plurality of equidistantly distributed air jet nozzles 405 are arranged on the side of air pipe 103 in an inclined manner.

[0030] Support leg 101 is fixedly installed to the left and right ends of the bottom of air floatation box 1, support frame 102 is fixedly installed to the lower end of the inner side of support leg 101, support seat 3 is fixedly installed to the lower end of the side of support leg 101, air blowing cylinder 302 is fixedly installed to the right end of support seat 3, rotating shaft 410 is movably connected to the inner surface of support seat 3 through bearing, driven bevel gear 406 is fixedly installed to the back side of rotating shaft 410, second sprocket 407 is fixedly installed to the front end of the outer surface of rotating shaft 410 and drive rotating shaft 401, and drive chain 106 is sleeved to the outer side of second sprocket 407.

[0031] Drive motor 303 is fixedly installed to the top of support frame 102, output end of drive motor 303 is fixedly connected with rotating shaft 305, drive bevel gear 306 is fixedly connected to the outer surface of rotating shaft 305 and engaged with driven bevel gear 406, drive plate 304 is fixedly connected to the right side of rotating shaft 305, guide pin shaft 307 is fixedly connected to the lower end of the right side of drive plate 304, sealing plug 308 is slidably connected to the inner side of air blowing cylinder 302, connecting rod 311 is fixedly connected to the side of sealing plug 308, and guide frame 301 is fixedly connected to the side of connecting rod 311.

[0032] The lower end of one side of the air blower 302 is communicated with a suction pipe 408, one end of the suction pipe 408 is communicated with a second one-way valve 409, the middle end of one side of the air blower 302 is communicated with a guide pipe 310, the other end of the guide pipe 310 is communicated with the rear end of the air pipe 103, the end of the guide pipe 310 close to the air blower 302 is communicated with a first one-way valve 309, the left end of the inner cavity of the air box 1 is movably connected with an auxiliary rotating shaft 4 through a bearing, the right end of the inner cavity of the air box 1 is movably connected with a driving rotating shaft 401 through a bearing, the front and rear ends of the outer surfaces of the driving rotating shaft 401 and the auxiliary rotating shaft 4 are fixedly installed with first sprockets 403, the outer side of the first sprockets 403 is sleeved with a scraper chain 404, the outer surface of the scraper chain 404 is fixedly connected with an elastic scraper 402, the guide frame 301 and the guide pin shaft 307 are matched, and the guide pin shaft 307 slides in the inner side of the guide frame 301, the right end of the inner cavity of the air box 1 is provided with a partition plate 104, the right end of the rear side of the air box 1 is communicated with a discharge pipe 105, and the inner surface of the discharge pipe 105 is provided with a valve body.

[0033] The technical scheme: when the external controller drives the driving motor 303 to drive the rotating shaft 305 to rotate, the rotating shaft 305 drives the driving bevel gear 306 and the driving plate 304 to rotate, and when the driving plate 304 drives the guide pin shaft 307 to slide in the guide frame 301, the guide frame 301 can drive the two sealing plugs 308 to pull in the corresponding air blower 302 through the connecting rod 311, and then the air blower 302 can suck the external gas through the suction pipe 408 and the second one-way valve 409, and then the gas can be sent into the air pipe 103 through the second one-way valve 409 and the guide pipe 310 and discharged outward through the air jet nozzle 405, and the two air blowers 302 blow alternately, so that the continuousness of the pressurized exhaust of the air jet nozzle 405 can be ensured, and the rotation of the driving bevel gear 306 can drive the rotating shaft 410 to rotate through the meshing connection of the driven bevel gear 406, and the rotating shaft 410 can drive the driving rotating shaft 401 to rotate through the second sprocket 407 and the driving chain 106, and the first sprocket 403 and the scraper chain 404 can drive the auxiliary rotating shaft 4 and the elastic scraper 402 to rotate, and when the elastic scraper 402 contacts the inclined surface on the upper end of the partition plate 104, the removal of the scum can be completed, so that the scum can enter the right end of the inner cavity of the air box 1, and when the elastic scraper 402 for removing the scum enters the pressurized exhaust cleaning area of the air jet nozzle 405, the cleaning work of the two sides of the elastic scraper 402 can be completed, so that the back mixing of the scum is avoided, and the processing efficiency of the equipment can be improved.

[0034] Embodiment two

[0035] On the basis of the embodiment one, the utility model discloses Figures 1-4As shown, the left end of the inner cavity bottom of the air float tank 1 is fixedly installed with a dispersion plate 501, the left side of the support frame 102 is provided with a nano bubble generator 5, and the exhaust end of the nano bubble generator 5 is communicated with the left end of the top of the dispersion plate 501 through a pipeline.

[0036] The technical scheme: through the setting of the nano bubble generator 5 and the assistance of the dispersion plate 501, more and smaller bubbles can be input into the air float tank 1, the use mode of the bubbles generated by the traditional high-pressure pump and air compressor is avoided, and the energy consumption and operation cost are reduced.

[0037] Embodiment three

[0038] Based on the embodiment one, the utility model discloses as shown in Figures 1-4 The left end of the top of the air float tank 1 is fixedly installed with an electrolytic tank 2, the right end of the top of the electrolytic tank 2 is provided with an electrode plate 203 extending into the electrolytic tank 2, the left end of the top of the electrolytic tank 2 is hung with a filter screen groove 201, the upper end of the left side of the electrolytic tank 2 is provided with a liquid inlet pipe 202 extending into the filter screen groove 201, the lower end of the left side of the electrolytic tank 2 is communicated with a blowdown pipe 204, one end of the blowdown pipe 204 is provided with a blowdown valve, and the right end of the bottom of the electrolytic tank 2 is communicated with a liquid outlet pipe 205.

[0039] The technical scheme: through the setting of the filter screen groove 201, the wastewater injected by the liquid inlet pipe 202 can be preliminarily filtered, and after the wastewater enters the electrolytic tank 2, the wastewater can be pre-electrolyzed through the setting of the electrode plate 203 (two electrode plates 203 are respectively an anode plate and a cathode plate), thereby effectively improving the contact angle of oil and water and breaking the interface, and after the electrolyzed wastewater enters the air float tank 1 through the liquid outlet pipe 205, the working efficiency of wastewater separation can be improved.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical scheme of the utility model, and not to limit the protection scope of the utility model, although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical scheme of the utility model can be modified or replaced equivalently without departing from the essence and scope of the technical scheme of the utility model.

Claims

1. A high-efficiency gas floatation separation device for petrochemical wastewater, comprising a gas floatation tank (1), characterized in that, Also includes: The air pipe (103) is symmetrically arranged and fixedly installed at the right end of the inner side of the air float box (1), and a plurality of equally spaced air nozzles (405) are arranged on one side of the air pipe (103); The support leg (101) is fixedly installed at the left and right ends of the bottom of the air float box (1), the lower end of the inner side of the support leg (101) is fixedly installed with a support frame (102), the lower end of one side of the support leg (101) is fixedly installed with a support seat (3), the right end of the support seat (3) is fixedly installed with a blast cylinder (302), the inner surface of the support seat (3) is movably connected with a rotating shaft (410) through a bearing, the rear side of the rotating shaft (410) is fixedly installed with a driven bevel gear (406), the front ends of the outer surfaces of the rotating shaft (410) and the driving shaft (401) are fixedly installed with a second sprocket (407), and the outer side of the second sprocket (407) is sleeved with a driving chain (106); The driving motor (303) is fixedly installed at the top of the support frame (102), the output end of the driving motor (303) is fixedly connected with a rotating shaft (305), the outer surface of the rotating shaft (305) is fixedly connected with a driving bevel gear (306) meshing with the driven bevel gear (406), the right side of the rotating shaft (305) is fixedly connected with a driving plate (304), the lower end of the right side of the driving plate (304) is fixedly connected with a guide pin shaft (307), the inner side of the blast cylinder (302) is movably connected with a sealing plug (308), one side of the sealing plug (308) is fixedly connected with a connecting rod (311), and one side of the connecting rod (311) is fixedly connected with a guide frame (301).

2. The high-efficiency gas floatation separation device for petrochemical wastewater according to claim 1, characterized in that: The lower end of one side of the blast cylinder (302) is communicated with an air suction pipe (408), one end of the air suction pipe (408) is communicated with a second one-way valve (409), the middle end of one side of the blast cylinder (302) is communicated with an air guide pipe (310), the other end of the air guide pipe (310) is communicated with the rear end of the air pipe (103), and the end of the air guide pipe (310) close to the blast cylinder (302) is communicated with a first one-way valve (309).

3. The high-efficiency gas floatation separation device for petrochemical wastewater according to claim 1, characterized in that: The left end of the inner cavity of the air float box (1) is movably connected with an auxiliary shaft (4) through a bearing, the right end of the inner cavity of the air float box (1) is movably connected with a driving shaft (401) through a bearing, the front and rear ends of the outer surfaces of the driving shaft (401) and the auxiliary shaft (4) are fixedly installed with a first sprocket (403), the outer side of the first sprocket (403) is sleeved with a scraper chain (404), and the outer surface of the scraper chain (404) is fixedly connected with an elastic scraper (402).

4. The high-efficiency gas floatation separation device for petrochemical wastewater according to claim 1, characterized in that: The guide frame (301) and the guide pin shaft (307) are matched, and the guide pin shaft (307) slides in the inner side of the guide frame (301).

5. The highly efficient gas floatation separation device for petrochemical wastewater according to claim 1, characterized in that: The left end of the bottom of the inner cavity of the air float box (1) is fixedly installed with a dispersion plate (501), the left side of the support frame (102) is provided with a nano bubble generator (5), and the exhaust end of the nano bubble generator (5) is communicated with the left end of the top of the dispersion plate (501) through a pipeline.

6. The highly efficient gas floatation separation device for petrochemical wastewater according to claim 1, characterized in that: The right end of the inner cavity of the gas float box (1) is provided with a partition (104), the right end of the rear side of the gas float box (1) is communicated with a discharge pipe (105), and the inner surface of the discharge pipe (105) is provided with a valve body.

7. The highly efficient gas floatation separation device for petrochemical wastewater according to claim 1, characterized in that: The left end of the top of the gas float box (1) is fixedly installed with an electrolysis box (2), the right end of the top of the electrolysis box (2) is provided with a polar plate (203) extending into the electrolysis box (2), the left end of the top of the electrolysis box (2) is hung with a filter screen groove (201), the upper end of the left side of the electrolysis box (2) is provided with a liquid inlet pipe (202) extending into the filter screen groove (201), the lower end of the left side of the electrolysis box (2) is communicated with a blowdown pipe (204), one end of the blowdown pipe (204) is provided with a blowdown valve, and the right end of the bottom of the electrolysis box (2) is communicated with a liquid discharge pipe (205).

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