Petroleum sewage treatment equipment and method

Abstract

The invention discloses petroleum sewage treatment equipment and method, and belongs to the technical field of sewage treatment. Comprising a treatment pond, sliding grooves are formed in the positions, close to the front side and the rear side, of the top of the treatment pond, two discharging openings are formed in the position, close to the left side, of an inner cavity of the treatment pond, the two discharging openings are symmetrically formed in the front-back direction, and two cross beams are fixedly connected to the top of the treatment pond and symmetrically arranged in the front-back direction; a connecting plate is fixedly connected to the position, close to the center of the right side, of the top of the treatment pond, and a servo motor and a mounting plate are fixedly connected to the position, close to the center of the left side, of the top of the treatment pond. Through the mutual cooperation of the main motor, the fixed plate, the driving gear, the upper gear, the middle gear, the lower gear, the transmission rod, the connecting piece, the variable gear, the limiting plate, the rotating rod, the stirring blade and other parts, when flocculating constituent particles in the treatment tank are increased, formed rock flowers are prevented from being broken.

Description

Technical Field

[0001] The present invention relates to the technical field of petroleum wastewater, and in particular to a petroleum wastewater treatment device and method. Background Art

[0002] Petroleum wastewater is wastewater containing various pollutants generated during the process of petroleum extraction, refining, processing and transportation. There are various ways to treat oily wastewater. Different treatment methods can be selected according to the form of oil in the wastewater (such as suspended oil, dispersed oil, emulsified oil and dissolved oil) and the treatment objectives. Coagulation is one of them. Coagulant is added to the wastewater to aggregate the colloidal particles and fine suspended matter in the wastewater into coarser flocs, which are then removed by gravity sedimentation.

[0003] Before coagulation begins, it is necessary to select a suitable coagulant according to the properties of the wastewater. Therefore, the staff needs to wear protective equipment and use a pH machine to test the current wastewater and add it according to the test results, which is very inconvenient. Moreover, when the coagulant is added, in order to make the coagulant quickly disperse into the wastewater and contact with the colloids and fine suspended matter in the water, mechanical stirring is required. However, as the flocculent particles increase, the stirring intensity or water flow rate should be gradually reduced to avoid breaking the already formed flocculents. The existing stirring mechanism cannot change the stirring intensity according to the flocculent particles in the pool. Summary of the Invention

[0004] To achieve the above object, the present invention provides the following technical solutions: A petroleum wastewater treatment equipment includes a treatment tank, wherein the top of the treatment tank is provided with a chute near the front and rear sides, the inner cavity of the treatment tank is provided with two discharge ports near the left side, and the two discharge ports are symmetrically arranged front to back, and the top of the treatment tank is fixedly connected with two cross beams, and the two cross beams are symmetrically arranged front to back, and the top of the treatment tank is fixedly connected with a connecting plate near the right center, and a servo motor is provided at the left center of the treatment tank, and a mounting plate is fixedly connected to the top of the treatment tank near the left center, and the right side of the servo motor is fixedly connected to the mounting plate, and the power output shaft of the servo motor passes through the mounting plate and is fixedly connected to the center shaft, and the right end of the center shaft is inserted into the connecting plate, and a screw rod is sleeved on the outside of the center shaft, and a bottom gear is fixedly sleeved on the outside of the screw rod near the left end, and a top gear is meshed with the top of the bottom gear, and a first rotating shaft passes through the center of the top gear, and The two gears are fixedly connected to each other, and there are two linkage gears on the right side of the mounting plate. The two linkage gears are symmetrically arranged up and down, and the two linkage gears are meshed with each other. The left end of the first rotating shaft passes through the linkage gear at the top and is fixedly connected to it. The left end of the first rotating shaft is inserted into the mounting plate, and a second rotating shaft is inserted through the center of the linkage gear at the bottom and is fixedly connected to it. The left end of the second rotating shaft passes through the inner cavity of the mounting plate. There are clamping rods on the front and back sides of the screw rod, and the right ends of the two clamping rods are inserted into the connecting plate. The left ends of the two clamping rods are both sleeved with plug-in blocks, and the bottom of the plug-in block is fixedly connected to the top of the processing pool. A winding wheel is fixedly sleeved on the outside of the central axis near the left end, and the winding wheel is located between the bottom gear and the mounting plate. Transmission pipes are inserted near the left side on the front and back sides of the processing pool, and the two transmission pipes are fixedly connected to a collection box at their opposite ends.

[0005] Preferably, two pull ropes are wrapped around the outside of the winding wheel, and the other ends of the two pull ropes are fixedly connected to a baffle, and the baffle is slidably connected to the discharge port. Guide wheels are attached to the outside of the two pull ropes, and L-shaped welding plates are hinged on the left and right sides of the guide wheels. The other sides of the two L-shaped welding plates are fixedly connected to the top of the treatment pool.

[0006] Preferably, the outer side of the screw rod is threadedly connected to a moving block, and the front and rear sides of the moving block are fixedly connected to side plates, and the two side plates are sleeved on the clamping rod, and the bottoms of the two side plates are fixedly connected to vertical rods, and the bottom ends of the two vertical rods are commonly fixedly connected to scrapers, and a plurality of openings are provided on the scraper, and the openings are linearly arranged from front to back, and the tops of the two scrapers are fixedly connected near the front and rear sides with L-shaped connecting rods, and the two L-shaped connecting rods are hinged with pulleys on the side away from the scraper, and the pulleys are slidably connected to the inner cavity of the slide groove.

[0007] Preferably, a rotating gear is fixedly sleeved on the outer side of the central shaft near the left end, and the rotating gear is located between the servo motor and the mounting plate. A rotating block is provided on the top of the rotating gear, and a plurality of grooves are provided on the outer side of the rotating block. The plurality of grooves are arranged in a circular array with the center of the rotating block as the center, and the inner cavities of the plurality of grooves are hinged with meshing blocks, one side of the meshing block is attached to the limiting block, and the corresponding sides of the plurality of limiting blocks are fixedly connected to the rotating block, and the other side of the meshing block is attached to a spring, and the corresponding sides of the plurality of springs are fixedly connected to the rotating block. The outer side of the rotating gear is meshed with the adjacent meshing block, and the left end of the second rotating shaft passes through the inner cavity of the rotating block and is fixedly connected to it.

[0008] Preferably, there is a main motor on the top of the two beams, the main motor power output shaft is fixedly connected to the driving gear, the driving gear is provided with a movable gear at the bottom, the movable gear is provided with a speed gear at the bottom, the speed gear and the movable gear are slidably connected to a rotating rod at the center of the circle, the speed gear and the movable gear are movably connected to a positioning rod, the outer side of the positioning rod is sleeved with a sleeve plate, the bottom of the sleeve plate is installed with a cylinder, a timer is provided inside the cylinder, the bottom end of the cylinder is fixedly connected to the beam, a number of stirring blades are fixedly sleeved on the outer side of the rotating rod near the bottom end, the several stirring blades are arranged in a circular array with the center of the rotating rod as the center, and two limit plates are fixedly connected to the outer side of the rotating rod.

[0009] Preferably, the rotating rod and the corresponding end of the main motor power output shaft are fixedly connected with a connecting piece, the left side of the main motor is fixedly connected with a fixing plate, the inner cavity of the fixing plate is penetrated by a transmission rod, the outer side of the transmission rod near the top is fixedly sleeved with an upper gear, the outer side of the transmission rod near the center is fixedly sleeved with a middle gear, the outer side of the transmission rod near the bottom is fixedly sleeved with a lower gear, the upper gear is meshed with the driving gear, the lower gear is meshed with the speed gear, and the bottom end of the transmission rod is inserted into the crossbeam.

[0010] Preferably, two delivery boxes are installed near the right side of the top of the beam, and a discharge pipe is connected to the bottom of the two delivery boxes. A valve is provided in the inner cavity of the discharge pipe. A pointer-type industrial pH meter is installed on the right side of the delivery box, and a dashboard is provided on the pointer-type industrial pH meter. A first trigger is installed near the center on the right side of the dashboard located on the rear side, and the first trigger is electrically connected to the valve located on the rear side. A second trigger is installed near the front and rear sides on the right side of the dashboard located on the front side, and the second trigger is electrically connected to the valve located on the front side. The second trigger and the first trigger are both electrically connected to the main motor.

[0011] A method for using a petroleum wastewater treatment device comprises the following steps: S1: First, the staff introduces the petroleum wastewater into the inner cavity of the treatment pool and activates two pointer-type industrial pH meters. When the pointer-type industrial pH meters detect the petroleum wastewater, the pointers can rotate. If the current pH value of the petroleum wastewater is moderate, the first trigger can be activated. When the first trigger is activated, the corresponding valve can be opened, thereby allowing the inorganic coagulant inside the delivery box at the rear side to be delivered. If the current pH value of the petroleum wastewater is low or high, the second trigger can be activated. When the second trigger is activated, the corresponding valve can be opened, thereby allowing the organic coagulant inside the delivery box at the front side to be delivered, so that the colloidal particles and fine suspended matter in the wastewater, including suspended oil, are aggregated into coarser flocs. S2: When the coagulant is added, the main motor can be started. When the main motor is started, it can drive the driving gear to rotate. When the driving gear rotates, it can engage with the upper gear to drive the transmission rod to rotate. When the transmission rod rotates, it can drive the middle gear and the lower gear to rotate. Since the connecting piece at the bottom end of the main motor power output shaft and the connecting piece at the top end of the rotating rod are temporarily connected to each other, the power output shaft can drive the rotating rod to rotate rapidly to ensure that the coagulant is fully in contact with the colloid and suspended matter in the wastewater and initial flocculation occurs; S3: As the flocculent particles grow, the stirring intensity or water flow rate should be gradually reduced to avoid breaking the already formed floccules. Therefore, the timer inside the cylinder is started, and the output end of the cylinder drives the sleeve plate to move downward. The sleeve plate can drive the movable gear and the speed gear to move downward through the positioning rod, so that the movable gear is engaged with the middle gear. At this time, the speed gear is in a non-engaged state, so that the rotating rod rotates at a medium speed. When the cylinder drives the speed gear to move downward to engage with the lower gear, the rotating rod can drive several stirring blades to rotate slowly, thereby slowly stirring the flocculant and petroleum wastewater inside the treatment tank; S4: When the reaction inside the treatment pool is completed, the servo motor can be started. When the servo motor rotates forward, it can drive the rotating gear to rotate. When the rotating gear rotates, when the servo motor is started, the winding wheel can be driven to rotate through the power output shaft. When the rotating gear rotates forward, it can fit with the meshing block, so that the meshing block fits with the reed to prevent the rotating block from rotating. When the winding wheel rotates, the two baffles can be driven to move through the two pull ropes to expose the discharge port to discharge the sewage. At this time, the flocculent body naturally settles to the bottom of the pool under the action of gravity. When the power output shaft of the servo motor is reversed, several meshing blocks can fit with the limit block, so that the rotating block rotates. When the rotating block rotates, it can drive the second rotating shaft to rotate. The second rotating shaft can drive the linkage gear at the bottom to rotate. The linkage gear at the bottom can drive the linkage gear at the top to rotate. When the linkage gear at the top rotates, it can drive the top gear to rotate through the first rotating shaft. When the top gear rotates, it can drive the bottom gear to rotate. S5: When the bottom gear rotates, it drives the screw to rotate. When the screw rotates, the moving block can move. When the moving block moves, the moving trajectory of the moving block can be limited by two clamping rods. When the moving block moves, it drives the scraper to move. When the scraper moves, it can scrape the flocs at the bottom of the treatment tank to the left side of the inner cavity of the treatment tank and enter the inner cavity of the transmission pipe, thereby completing the purpose of collecting the flocs.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can achieve that when the flocculent particles inside the treatment tank increase in size, the stirring intensity of the stirring blades can be changed to avoid breaking up the already formed floccules through the mutual cooperation between the main motor, fixed plate, driving gear, upper gear, middle gear, lower gear, transmission rod, connecting piece, speed change gear, limit plate, rotating rod, stirring blade and other components; 2. The present invention can realize the addition of organic coagulants when the pH value of the petroleum wastewater in the treatment tank is low or high, and the addition of inorganic coagulants when the pH value of the petroleum wastewater in the treatment tank is moderate, through the mutual cooperation between the drop box, the pointer-type industrial pH meter, the first trigger, the second trigger and other components; 3. The present invention can achieve the removal of flocculants at the bottom of the treatment tank when coagulation is completed through the mutual cooperation between the servo motor, winding wheel, rotating gear, bottom gear, top gear, first rotating shaft, linkage gear, screw rod, clamping rod, plug-in block and other components. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the main motor structure of the present invention; Figure 3 This is a bottom view of the main motor structure of the present invention; Figure 4 This is a schematic diagram of the scraper structure of the component of the present invention; Figure 5 This is a schematic diagram of the structure of a pointer-type industrial pH meter with components located on the front side of the present invention; Figure 6 This is a schematic diagram of the structure of a pointer-type industrial pH meter with components located on the rear side of the present invention; Figure 7 This is a schematic diagram of the structure of the servo motor component of the present invention; Figure 8 This is a schematic diagram of the screw rod structure of the component of the present invention; Figure 9 This is a schematic diagram of the structure of the rotating block component of the present invention; Figure 10 It is a plan view of the rotating block structure of the component of the present invention; Figure 11 for Figure 7 Enlarged view of point A in the middle.

[0014] Numbers in the figure: 1, treatment tank; 2, collection box; 3, transmission pipe; 4, crossbeam; 5, delivery box; 6, connecting plate; 7, stirring blade; 8, pull rope; 9, servo motor; 10, upper gear; 11, main motor; 12, scraper; 13, fixed plate; 14, driving gear; 15, sleeve plate; 16, movable gear; 17, speed change gear; 18, middle gear; 19, lower gear; 20, transmission rod; 21, cylinder; 22, connecting piece; 23, limit plate; 24, L-type connecting piece Connecting rod; 25. Vertical rod; 26. Moving block; 27. Side plate; 28. Clamping rod; 29. ​​Screw rod; 30. Top gear; 31. Bottom gear; 32. Connecting block; 33. Linkage gear; 34. Mounting plate; 35. Baffle; 36. Winding wheel; 37. Rotating gear; 38. Pointer-type industrial pH meter; 39. First trigger; 40. Second trigger; 41. Engaging block; 42. Rotating block; 43. Limiting block; 44. Reed; 45. Guide wheel; 46. L-shaped welding plate. DETAILED DESCRIPTION

[0015] See also Figure 1-11 , the technical solutions provided by the present invention are as follows: A petroleum wastewater treatment equipment includes a treatment tank 1. The top of the treatment tank 1 is provided with a chute near the front and rear sides. The inner cavity of the treatment tank 1 is provided with two discharge ports near the left side. The two discharge ports are symmetrically arranged front and back. The top of the treatment tank 1 is fixedly connected with two crossbeams 4. The two crossbeams 4 are symmetrically arranged front and back. A connecting plate 6 is fixedly connected to the top of the treatment tank 1 near the right center. A servo motor 9 is provided at the left center of the treatment tank 1. A mounting plate 34 is fixedly connected to the top of the treatment tank 1 near the left center. The right side of the servo motor 9 is fixedly connected to the mounting plate 34. The power output shaft of the servo motor 9 passes through the mounting plate 34 and is fixedly connected to the center shaft. The right end of the center shaft is plugged into the connecting plate 6. A screw rod 29 is sleeved on the outside of the center shaft. The outside of the screw rod 29 is near the left end. A bottom gear 31 is fixedly sleeved, and a top gear 30 is meshed with the top of the bottom gear 31. A first rotating shaft is provided at the center of the top gear 30 and is fixedly connected thereto. There are two linkage gears 33 on the right side of the mounting plate 34. The two linkage gears 33 are symmetrically arranged up and down, and the two linkage gears 33 are meshed with each other. The left end of the first rotating shaft passes through the linkage gear 33 at the top and is fixedly connected thereto. The left end of the first rotating shaft is inserted into the mounting plate 34, and a second rotating shaft is provided at the center of the linkage gear 33 at the bottom and is fixedly connected thereto. The left end of the second rotating shaft passes through the inner cavity of the mounting plate 34. There are clamping rods 28 on both the front and rear sides of the screw rod 29. The right ends of the two clamping rods 28 are both inserted into the connecting plate 6, and the left ends of the two clamping rods 28 are sleeved with plug-in blocks 32 , the bottom of the plug-in block 32 is fixedly connected to the top of the processing tank 1, and a winding wheel 36 is fixedly sleeved on the outside of the central axis near the left end. The winding wheel 36 is located between the bottom gear 31 and the mounting plate 34. The transmission pipes 3 are inserted near the left side on the front and rear sides of the processing tank 1. The two transmission pipes 3 are fixedly connected to the collection box 2 at one end opposite to each other. Two pull ropes 8 are wrapped around the outside of the winding wheel 36, and the other ends of the two pull ropes 8 are fixedly connected to the baffle 35. The baffle 35 is slidably connected to the discharge port. Guide wheels 45 are attached to the outside of the two pull ropes 8. L-shaped welding plates 46 are hinged on the left and right sides of the guide wheel 45. The other sides of the two L-shaped welding plates 46 are fixedly connected to the top of the processing tank 1. The outer side of the screw rod 29 is threadedly connected to the moving block 26. The moving block 26 is fixed on the front and back sides. The two side plates 27 are fixedly connected, and the two side plates 27 are sleeved on the card rod 28. The bottom of the two side plates 27 are fixedly connected to the vertical rod 25. The bottom ends of the two vertical rods 25 are fixedly connected to the scraper 12. The scraper 12 is provided with a plurality of openings, and the openings are linearly arranged from front to back. The tops of the two scrapers 12 are fixedly connected near the front and rear sides with L-shaped connecting rods 24. The two L-shaped connecting rods 24 are hinged with pulleys on the side away from the scraper 12. The pulleys are slidably connected to the inner cavity of the slide groove. The outer side of the central axis is fixedly sleeved with a rotating gear 37 near the left end. The rotating gear 37 is located between the servo motor 9 and the mounting plate 34. The top of the rotating gear 37 is provided with a rotating block 42. The outer side of the rotating block 42 is provided with a plurality of grooves. The plurality of grooves are centered on the center of the rotating block 42.Arranged in a circular array, the inner cavities of several grooves are hinged with meshing blocks 41. One side of the meshing block 41 is attached to a limit block 43, and the corresponding sides of several limit blocks 43 are fixedly connected to the rotating block 42. The other side of the meshing block 41 is attached to a spring 44, and the corresponding sides of several springs 44 are fixedly connected to the rotating block 42. The outer side of the rotating gear 37 meshes with the adjacent meshing block 41. The left end of the second rotating shaft passes through the inner cavity of the rotating block 42 and is fixedly connected to it.

[0016] The top of each crossbeam 4 is provided with a main motor 11, and the power output shaft of the main motor 11 is fixedly connected to a driving gear 14, and a movable gear 16 is provided at the bottom of the driving gear 14, and a speed gear 17 is provided at the bottom of the movable gear 16. The speed gear 17 and the movable gear 16 are slidably connected to a rotating rod at the center of the circle. A positioning rod is movably connected between the speed gear 17 and the movable gear 16. A sleeve 15 is sleeved on the outside of the positioning rod, and a cylinder 21 is installed at the bottom of the sleeve 15. A timer is arranged inside the cylinder 21. The bottom end of the cylinder 21 is fixedly connected to the crossbeam 4, and a plurality of stirring blades 7 are fixedly sleeved near the bottom end of the outside of the rotating rod. The plurality of stirring blades 7 are arranged in a circular array with the center of the rotating rod as the center. Two limit plates 23 are fixedly connected to the outside of the rotating rod, and the corresponding ends of the rotating rod and the power output shaft of the main motor 11 are fixedly connected to a connecting piece 22. The left side of the main motor 11 is fixedly connected to a fixed plate 13. A transmission rod 20 is provided through the inner cavity of the fixed plate 13. The outside of the transmission rod 20 An upper gear 10 is fixedly sleeved near the top, a middle gear 18 is fixedly sleeved near the center of the outer side of the transmission rod 20, and a lower gear 19 is fixedly sleeved near the bottom end of the outer side of the transmission rod 20. The upper gear 10 is engaged with the driving gear 14, and the lower gear 19 is engaged with the speed change gear 17. The bottom end of the transmission rod 20 is inserted into the crossbeam 4. Two delivery boxes 5 are installed near the right side of the top of the crossbeam 4. A discharge pipe is inserted at the bottom of the two delivery boxes 5, and a valve is provided in the inner cavity of the discharge pipe. A pointer-type industrial pH meter 38 is installed on the right side of the delivery box 5, and an instrument panel is provided on the pointer-type industrial pH meter 38. A first trigger 39 is installed near the center on the right side of the instrument panel on the rear side, and the first trigger 39 is electrically connected to the valve on the rear side. A second trigger 40 is installed on the right side of the instrument panel on the front side, near the front and rear sides, and the second trigger 40 is electrically connected to the valve on the front side. The second trigger 40 and the first trigger 39 are both electrically connected to the main motor 11.

[0017] A method for using a petroleum wastewater treatment device comprises the following steps: S1: First, the staff introduces the petroleum wastewater into the inner cavity of the treatment tank 1 and activates two pointer-type industrial pH meters 38. When the pointer-type industrial pH meters 38 detect the petroleum wastewater, the pointers can rotate. If the current pH value of the petroleum wastewater is moderate, the first trigger 39 can be activated. When the first trigger 39 is activated, the corresponding valve can be opened, thereby allowing the inorganic coagulant inside the delivery box 5 located at the rear side to be delivered. If the current pH value of the petroleum wastewater is low or high, the second trigger 40 can be activated. When the second trigger 40 is activated, the corresponding valve can be opened, thereby allowing the organic coagulant inside the delivery box 5 located at the front side to be delivered, so that the colloidal particles and fine suspended matter in the wastewater, including suspended oil, are aggregated into coarser flocs. S2: When the coagulant is added, the main motor 11 can be started. When the main motor 11 is started, the driving gear 14 can be driven to rotate. When the driving gear 14 rotates, it can engage with the upper gear 10 to drive the transmission rod 20 to rotate. When the transmission rod 20 rotates, the middle gear 18 and the lower gear 19 can be driven to rotate. Since the connecting piece 22 at the bottom end of the power output shaft of the main motor 11 and the connecting piece 22 at the top end of the rotating rod are temporarily connected to each other, the power output shaft can drive the rotating rod to rotate rapidly to ensure that the coagulant is fully in contact with the colloid and suspended matter in the wastewater and preliminary flocculation occurs; S3: As the flocculent particles grow, the stirring intensity or water flow rate should be gradually reduced to avoid breaking the already formed floccules. Therefore, the timer inside the cylinder 21 is started, and the output end of the cylinder 21 drives the sleeve plate 15 to move downward. The sleeve plate 15 can drive the movable gear 16 and the speed gear 17 to move downward through the positioning rod, so that the movable gear 16 is engaged with the middle gear 18. At this time, the speed gear 17 is in a non-engaged state, so that the rotating rod rotates at a medium speed. When the cylinder 21 drives the speed gear 17 to move downward so that it is engaged with the lower gear 19, the rotating rod can drive the plurality of stirring blades 7 to rotate slowly, thereby slowly stirring the flocculant and petroleum wastewater inside the treatment tank 1; S4: When the reaction inside the treatment tank 1 is completed, the servo motor 9 can be started. When the servo motor 9 rotates forward, it can drive the rotating gear 37 to rotate. When the rotating gear 37 rotates, when the servo motor 9 is started, the winding wheel 36 can be driven to rotate through the power output shaft. When the rotating gear 37 rotates forward, it can fit with the meshing block 41, so that the meshing block 41 fits with the reed 44 to prevent the rotating block 42 from rotating. When the winding wheel 36 rotates, the two baffles 35 can be driven to move through the two pull ropes 8 to expose the discharge port to discharge the sewage. At this time, the flocculants are It naturally settles to the bottom of the pool under the action of gravity. When the power output shaft of the servo motor 9 is reversed, the engagement blocks 41 can be fitted with the limit blocks 43, so that the rotating block 42 rotates. When the rotating block 42 rotates, it can drive the second rotating shaft to rotate. The second rotating shaft can drive the linkage gear 33 at the bottom to rotate. The linkage gear 33 at the bottom can drive the linkage gear 33 at the top to rotate. When the linkage gear 33 at the top rotates, it can drive the top gear 30 to rotate through the first rotating shaft. When the top gear 30 rotates, it can drive the bottom gear 31 to rotate. S5: When the bottom gear 31 rotates, it can drive the screw rod 29 to rotate. When the screw rod 29 rotates, the moving block 26 can move. When the moving block 26 moves, the moving trajectory of the moving block 26 can be limited by the two clamping rods 28. When the moving block 26 moves, it can drive the scraper 12 to move. When the scraper 12 moves, it can scrape the flocs at the bottom of the treatment tank 1 to the left side of the inner cavity of the treatment tank 1 and enter the inner cavity of the transmission pipe 3, thereby completing the purpose of collecting the flocs.

[0018] Working principle: First, the staff introduces the oil wastewater into the inner cavity of the treatment tank 1 and starts two pointer-type industrial pH meters 38. When the pointer-type industrial pH meter 38 detects the oil wastewater, the pointer can rotate. If the current pH value of the oil wastewater is moderate, the first trigger 39 can be started. When the first trigger 39 is started, the corresponding valve can be opened to allow the inorganic coagulant inside the delivery box 5 on the rear side to be delivered. If the current pH value of the oil wastewater is low or high, the second trigger 40 can be started. When the second trigger 40 is started, the corresponding valve can be opened to allow the organic coagulant inside the delivery box 5 on the front side to be delivered, so that the colloidal particles and fine suspended matter including suspended oil in the wastewater are aggregated into For thicker flocs, when the coagulant is added, the main motor 11 can be started. When the main motor 11 is started, the driving gear 14 can be driven to rotate. When the driving gear 14 rotates, it can engage with the upper gear 10 to drive the transmission rod 20 to rotate. When the transmission rod 20 rotates, the middle gear 18 and the lower gear 19 can be driven to rotate. Since the connector 22 at the bottom end of the power output shaft of the main motor 11 and the connector 22 at the top end of the rotating rod are temporarily connected to each other, the power output shaft can drive the rotating rod to rotate rapidly to ensure that the coagulant is fully in contact with the colloid and suspended matter in the wastewater and preliminary flocculation occurs. As the floc particles increase, the stirring intensity or water flow rate should be gradually reduced to avoid breaking the already formed rock flowers, so the cylinder 21 The internal timer starts, and the output end of the cylinder 21 drives the sleeve plate 15 to move downward. The sleeve plate 15 can drive the movable gear 16 and the speed gear 17 to move downward through the positioning rod, so that the movable gear 16 is engaged with the middle gear 18. At this time, the speed gear 17 is in a non-engaged state, so that the rotating rod rotates at a medium speed. When the cylinder 21 drives the speed gear 17 to move downward so that it is engaged with the lower gear 19, the rotating rod can drive a number of stirring blades 7 to rotate slowly, thereby slowly stirring the flocculant and petroleum wastewater inside the treatment tank 1. When the reaction inside the treatment tank 1 is completed, the servo motor 9 can be started. When the servo motor 9 rotates forward, it can drive the rotating gear 37 to rotate. When the rotating gear 37 rotates, when the servo motor 9 is started, it passes The power output shaft can drive the winding wheel 36 to rotate. When the rotating gear 37 rotates forward, it can fit with the meshing block 41, so that the meshing block 41 fits with the reed 44, preventing the rotating block 42 from rotating. When the winding wheel 36 rotates, the two pull ropes 8 can drive the two baffles 35 to move, so that the discharge port is exposed to discharge the sewage. At this time, the flocculent body naturally settles to the bottom of the pool under the action of gravity. When the power output shaft of the servo motor 9 is reversed, several meshing blocks 41 can fit with the limit block 43, so that the rotating block 42 rotates. When the rotating block 42 rotates, it can drive the second rotating shaft to rotate. The second rotating shaft can drive the linkage gear 33 at the bottom to rotate. The linkage gear 33 at the bottom can drive the linkage gear 33 at the top to rotate.When the linkage gear 33 at the top rotates, it drives the top gear 30 to rotate via the first rotating shaft. When the top gear 30 rotates, it drives the bottom gear 31 to rotate. When the bottom gear 31 rotates, it drives the screw 29 to rotate. When the screw 29 rotates, it causes the movable block 26 to move. When the movable block 26 moves, the two clamping rods 28 limit the moving trajectory of the movable block 26. When the movable block 26 moves, it drives the scraper 12 to move. When the scraper 12 moves, it scrapes the flocs at the bottom of the treatment tank 1 to the left side of the inner cavity of the treatment tank 1 and enters the inner cavity of the transmission pipe 3, completing the purpose of collecting the flocs.

Claims

1. A petroleum wastewater treatment device, comprising a treatment tank (1), characterized in that: The top of the processing pool (1) is provided with chutes near the front and rear sides. The inner cavity of the processing pool (1) is provided with two discharge ports near the left side. The two discharge ports are symmetrically arranged front and back. The top of the processing pool (1) is fixedly connected with two crossbeams (4). The two crossbeams (4) are symmetrically arranged front and back. The top of the processing pool (1) is fixedly connected with a connecting plate (6) near the center of the right side. The center of the left side of the processing pool (1) is provided with a servo motor (9). The top of the processing pool (1) is fixedly connected with a mounting plate (34) near the center of the left side. The right side of the servo motor (9) is fixedly connected to the mounting plate (34). The power output shaft of the servo motor (9) passes through the mounting plate. (34), and is fixedly connected with a central shaft, the right end of the central shaft is inserted into the connecting plate (6), the outer side of the central shaft is sleeved with a screw rod (29), the outer side of the screw rod (29) is fixedly sleeved with a bottom gear (31) near the left end, the top of the bottom gear (31) is meshed with a top gear (30), the center of the top gear (30) is penetrated by a first rotating shaft and is fixedly connected thereto, the right side of the mounting plate (34) has two linkage gears (33), the two linkage gears (33) are symmetrically arranged up and down, the two linkage gears (33) are meshed with each other, the left end of the first rotating shaft penetrates the linkage gear (33) at the top and is fixedly connected thereto.

2. The petroleum wastewater treatment equipment according to claim 1, characterized in that: The left end of the first rotating shaft is plugged into the mounting plate (34), and a second rotating shaft is provided at the center of the linkage gear (33) at the bottom and is fixedly connected thereto. The left end of the second rotating shaft passes through the inner cavity of the mounting plate (34). There are clamping rods (28) on both the front and rear sides of the screw rod (29), and the right ends of the two clamping rods (28) are plugged into the connecting plate (6). The left ends of the two clamping rods (28) are sleeved with a plug-in block (32), and the bottom of the plug-in block (32) is fixedly connected to the top of the treatment tank (1). A winding wheel (36) is fixedly sleeved on the outer side of the central shaft near the left end, and the winding wheel (36) is located between the bottom gear (31) and the mounting plate (34). Transmission pipes (3) are inserted on both the front and rear sides of the treatment tank (1) near the left side, and the opposite ends of the two transmission pipes (3) are fixedly connected to the collection box (2).

3. The petroleum wastewater treatment equipment according to claim 2, characterized in that: Two pull ropes (8) are wound around the outside of the winding wheel (36), and the other ends of the two pull ropes (8) are fixedly connected to a baffle (35), and the baffle (35) is slidably connected to the discharge port. Guide wheels (45) are attached to the outside of the two pull ropes (8), and L-shaped welding plates (46) are hinged on the left and right sides of the guide wheels (45), and the other sides of the two L-shaped welding plates (46) are fixedly connected to the top of the treatment tank (1).

4. The petroleum wastewater treatment equipment according to claim 1, characterized in that: The outer side of the screw rod (29) is threadedly connected to a moving block (26), and the front and rear sides of the moving block (26) are fixedly connected to side plates (27), and the two side plates (27) are sleeved on the clamping rod (28). The bottoms of the two side plates (27) are fixedly connected to vertical rods (25), and the bottom ends of the two vertical rods (25) are fixedly connected to a scraper (12). The scraper (12) is provided with a plurality of openings, and the plurality of openings are linearly arranged from front to back. The tops of the two scrapers (12) are fixedly connected to L-shaped connecting rods (24) near the front and rear sides, and the two L-shaped connecting rods (24) are hinged to pulleys on the side away from the scraper (12), and the pulleys are slidably connected to the inner cavity of the slide groove.

5. The petroleum wastewater treatment equipment according to claim 1, characterized in that: A rotating gear (37) is fixedly sleeved on the outer side of the central shaft near the left end. The rotating gear (37) is located between the servo motor (9) and the mounting plate (34). A rotating block (42) is provided on the top of the rotating gear (37). A plurality of grooves are provided on the outer side of the rotating block (42). The plurality of grooves are arranged in a circular array with the center of the rotating block (42) as the center. The inner cavities of the plurality of grooves are hinged with meshing blocks (41). One side of the meshing block (41) is attached to a limit block (43). The corresponding sides of the plurality of limit blocks (43) are fixedly connected to the rotating block (42). The other side of the meshing block (41) is attached to a spring (44). The corresponding sides of the plurality of springs (44) are fixedly connected to the rotating block (42). The outer side of the rotating gear (37) is engaged with the adjacent meshing block (41). The left end of the second rotating shaft passes through the inner cavity of the rotating block (42) and is fixedly connected thereto.

6. The petroleum wastewater treatment equipment according to claim 1, characterized in that: The tops of the two crossbeams (4) are both provided with a main motor (11), the power output shaft of the main motor (11) is fixedly connected to a driving gear (14), the bottom of the driving gear (14) is provided with a movable gear (16), the bottom of the movable gear (16) is provided with a speed change gear (17), the speed change gear (17) and the movable gear (16) are slidably connected to a rotating rod at the center of the circle, the speed change gear (17) and the movable gear (16) are movably connected to a positioning rod, the outer side of the positioning rod is sleeved with a sleeve plate (15), the bottom of the sleeve plate (15) is installed with a cylinder (21), a timer is arranged inside the cylinder (21), the bottom end of the cylinder (21) is fixedly connected to the crossbeam (4), the outer side of the rotating rod is fixedly sleeved with a plurality of stirring blades (7) near the bottom end, the plurality of stirring blades (7) are arranged in a ring array with the center of the rotating rod as the center, and the outer side of the rotating rod is fixedly connected with two limit plates (23).

7. The petroleum wastewater treatment equipment according to claim 6, characterized in that: The rotating rod and the corresponding end of the power output shaft of the main motor (11) are fixedly connected with a connecting piece (22), the left side of the main motor (11) is fixedly connected with a fixed plate (13), the inner cavity of the fixed plate (13) is penetrated by a transmission rod (20), the outer side of the transmission rod (20) is fixedly sleeved with an upper gear (10) near the top, the outer side of the transmission rod (20) is fixedly sleeved with a middle gear (18) near the center, and the outer side of the transmission rod (20) is fixedly sleeved with a lower gear (19) near the bottom, the upper gear (10) is meshed with the driving gear (14), the lower gear (19) is meshed with the speed gear (17), and the bottom end of the transmission rod (20) is plugged into the crossbeam (4).

8. The petroleum wastewater treatment equipment according to claim 1, characterized in that: Two delivery boxes (5) are installed on the top of the crossbeam (4) near the right side, and the bottoms of the two delivery boxes (5) are connected with a discharge pipe, and the inner cavity of the discharge pipe is provided with a valve. A pointer-type industrial pH meter (38) is installed on the right side of the delivery box (5), and an instrument panel is provided on the pointer-type industrial pH meter (38). A first trigger (39) is installed near the center on the right side of the instrument panel located on the rear side, and the first trigger (39) is electrically connected to the valve located on the rear side. A second trigger (40) is installed on the right side of the instrument panel located on the front side near the front and rear sides, and the second trigger (40) is electrically connected to the valve located on the front side. The second trigger (40) and the first trigger (39) are both electrically connected to the main motor (11).

9. The method for using the petroleum wastewater treatment equipment according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1: First, the staff introduces the petroleum wastewater into the inner cavity of the treatment pool (1) and starts two pointer-type industrial pH meters (38). When the pointer-type industrial pH meter (38) detects the petroleum wastewater, the pointer can rotate. If the current pH value of the petroleum wastewater is moderate, the first trigger (39) can be started. When the first trigger (39) is started, the corresponding valve can be opened, so that the inorganic coagulant inside the delivery box (5) located at the rear side can be delivered. If the current pH value of the petroleum wastewater is low or high, the second trigger (40) can be started. When the second trigger (40) is started, the corresponding valve can be opened, so that the organic coagulant inside the delivery box (5) located at the front side can be delivered, so that the colloidal particles and fine suspended matter including suspended oil in the wastewater are aggregated into coarser flocs; S2: When the coagulant is added, the main motor (11) can be started. When the main motor (11) is started, the driving gear (14) can be driven to rotate. When the driving gear (14) rotates, it can engage with the upper gear (10) to drive the transmission rod (20) to rotate. When the transmission rod (20) rotates, it can drive the middle gear (18) and the lower gear (19) to rotate. Since the connecting piece (22) at the bottom end of the power output shaft of the main motor (11) and the connecting piece (22) at the top end of the rotating rod are temporarily connected to each other, the power output shaft can drive the rotating rod to rotate quickly to ensure that the coagulant is fully in contact with the colloid and suspended matter in the wastewater and initial flocculation occurs; S3: As the flocculent particles increase, the stirring intensity or water flow rate should be gradually reduced to avoid breaking the already formed flocculents. Therefore, the timer inside the cylinder (21) is started, and the output end of the cylinder (21) drives the sleeve plate (15) to move downward. The sleeve plate (15) can drive the movable gear (16) and the speed gear (17) to move downward through the positioning rod, so that the movable gear (16) is engaged with the middle gear (18). At this time, the speed gear (17) is in a non-engaged state, so that the rotating rod rotates at a medium speed. When the cylinder (21) drives the speed gear (17) to move downward to engage with the lower gear (19), the rotating rod can drive the several stirring blades (7) to rotate slowly, thereby slowly stirring the flocculant and petroleum wastewater inside the treatment tank (1); S4: When the reaction inside the treatment tank (1) is completed, the servo motor (9) can be started. When the servo motor (9) rotates forward, it can drive the rotating gear (37) to rotate. When the rotating gear (37) rotates, when the servo motor (9) is started, the winding wheel (36) can be driven to rotate through the power output shaft. When the rotating gear (37) rotates forward, it can fit with the meshing block (41), so that the meshing block (41) fits with the spring (44), preventing the rotating block (42) from rotating. When the winding wheel (36) rotates, the two baffles (35) can be driven to move through the two pull ropes (8), so that the discharge port is exposed to discharge the sewage. At this time, the flocculants are The solidified body naturally settles to the bottom of the pool under the action of gravity. When the power output shaft of the servo motor (9) is reversed, the plurality of meshing blocks (41) and the limit blocks (43) can be fitted together, thereby rotating the rotating block (42). When the rotating block (42) rotates, the second rotating shaft can be driven to rotate. The second rotating shaft can drive the linkage gear (33) at the bottom to rotate. The linkage gear (33) at the bottom can drive the linkage gear (33) at the top to rotate. When the linkage gear (33) at the top rotates, the top gear (30) can be driven to rotate through the first rotating shaft. When the top gear (30) rotates, the bottom gear (31) can be driven to rotate. S5: When the bottom gear (31) rotates, the screw (29) is driven to rotate. When the screw (29) rotates, the moving block (26) is moved. When the moving block (26) moves, the moving track of the moving block (26) is limited by the two clamping rods (28). When the moving block (26) moves, the scraper (12) is driven to move. When the scraper (12) moves, the flocculants at the bottom of the treatment tank (1) are scraped to the left side of the inner cavity of the treatment tank (1) and enter the inner cavity of the transmission pipe (3), thereby completing the purpose of collecting the flocculants.

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