Foam treatment device for coking wastewater

Abstract

The foam treatment device comprises an aerobic tank, a treatment tank, a suction mechanism and a defoaming mechanism, a cover plate is fixedly arranged at the top end of the treatment tank, and the defoaming mechanism comprises two first mounting plates, a second mounting plate, two third mounting plates, two fourth mounting plates, a fifth mounting plate, a roller and a driving assembly. One first mounting plate is fixedly arranged on the cover plate, the other first mounting plate is fixedly arranged on the treatment pond, the two third mounting plates are fixedly arranged on the bottom surface of the second mounting plate, the two fourth mounting plates are arranged below the third mounting plates, telescopic rods are fixedly arranged between the third mounting plates and the fourth mounting plates, and the fifth mounting plate is fixedly arranged on the two fourth mounting plates. A rotating rod is fixedly arranged on the roller, the two ends of the rotating rod are rotationally connected to the fourth mounting plate, small holes are fixedly formed in the roller, the driving assembly drives the roller to ascend, descend and rotate, a liquid storage barrel is fixedly arranged on the cover plate, and the liquid storage barrel is fixed to the roller through a connecting pipe. The technical problem that the foam treatment efficiency is low is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of wastewater treatment equipment, and in particular relates to a foam treatment device for coking wastewater. Background Art

[0002] With the advancement of science and technology and the development of society, my country's industrial wastewater treatment technology has made great progress, followed by the rapid development of coking wastewater treatment equipment.

[0003] Coking wastewater is mainly composed of water in coal coking, wastewater formed during gas purification, and wastewater generated during tar and crude benzene processing. It is a high-concentration and difficult-to-treat industrial wastewater containing phenol, cyanide, oil, ammonia and a large number of inorganic and organic pollutants. Coking wastewater has a high concentration of organic matter. During the treatment process, the aerobic tank requires more dissolved oxygen and a large aeration volume, which can easily cause foam accumulation and even overflow, posing potential environmental risks. In addition, foam accumulation will form a heat preservation effect, causing the system temperature to rise, which is an unstable factor affecting the normal operation of the system.

[0004] At present, the prior art usually installs several nozzles in the aerobic pool to spray defoaming agents for defoaming treatment. However, when the total amount of defoaming agent remains unchanged, the large number of nozzles will result in a small nozzle pressure. In order to keep the spraying pressure unchanged, the total amount of defoaming agent needs to be increased, but this will increase the cost and reduce the foam treatment efficiency. Therefore, it is necessary to develop a device for efficiently treating foam in coking wastewater. Summary of the invention

[0005] The invention provides a foam treatment device for coking wastewater, which is used to solve the technical problem of low efficiency of existing foam treatment.

[0006] In view of this, the present invention provides a foam treatment device for coking wastewater, comprising an aerobic tank and a treatment tank, each of which is hollow inside, a suction mechanism, and a defoaming mechanism arranged in the treatment tank, wherein the cover plate is fixedly arranged at the top of the treatment tank at a position close to the aerobic tank, and the suction mechanism is used to suck the foam in the aerobic tank into the treatment tank for treatment; The defoaming mechanism includes two first mounting plates, a second mounting plate vertically fixed on the top surfaces of the two first mounting plates, two third mounting plates, two fourth mounting plates, a fifth mounting plate arranged parallel to the second mounting plates, a roller with a hollow interior, and a driving assembly, wherein one of the first mounting plates is vertically fixed on the top surface of the cover plate away from the aerobic tank, and the other is vertically fixed on the top surface of the treatment tank away from the aerobic tank. The two third mounting plates are perpendicular to the bottom surface of the second mounting plate and fixed at both ends of the bottom surface of the second mounting plate along the width direction thereof. The two fourth mounting plates correspond to the two third mounting plates respectively and are arranged below the third mounting plates. A telescopic rod is fixed between the corresponding third mounting plates and the fourth mounting plates. The fifth mounting plate is fixed on the two fourth mounting plates. The roller is arranged along the width direction of the treatment tank. A rotating rod is fixed in the middle of the roller, and the rear end of the rotating rod is rotatably connected to the fourth mounting plate at the rear end, and the front end of the rotating rod passes through the fourth mounting plate at the front end and is rotatably connected thereto. A plurality of small holes are also fixed on the roller, and the driving assembly drives the roller to rise and fall and rotate.

[0007] Optionally, a liquid storage barrel is fixedly provided on the cover plate, and the liquid storage barrel is fixed to the inside of the drum through a connecting pipe and the three are connected.

[0008] Optionally, the suction mechanism includes a screw rod arranged along the length direction of the aerobic pool and with opposite thread directions at both ends, a first motor, sliders respectively threadedly connected to both ends of the screw rod, a limit block arranged parallel to the screw rod, a suction plate, a suction pump, and a suction pipe. One end of the screw rod is rotatably connected to the aerobic pool, and the other end passes through the side wall of the aerobic pool and is rotatably connected thereto. The first motor drives the screw rod to rotate, the limit rod passes through two sliders and is slidably connected thereto, both ends of the limit rod are fixedly arranged on the aerobic pool, the suction plate is arranged below the screw rod parallel to the bottom surface of the aerobic pool, and is slidably connected to the aerobic pool, and a first fixing block is fixedly arranged on the top surface of the suction plate , the first fixed block is respectively penetrated by first rotating shafts fixedly connected to the two ends along its length direction, the bottom surfaces of the two sliding blocks are respectively fixed with second fixed blocks, the two second fixed blocks are respectively penetrated by second rotating shafts fixedly connected to the two second fixed blocks, a hinged rod is arranged between the first rotating shaft and the second rotating shaft located on the same side, and the two ends of the hinged rod are respectively rotatably connected to the first rotating shaft and the second rotating shaft, the suction pump is fixed on the cover plate, and the bottom end is connected to the inside of the treatment tank, the suction pipe is fixed between the suction plate and the suction pump and the three are connected, and the end of the suction pipe located in the aerobic tank is a telescopic hose.

[0009] Optionally, a plurality of suction holes are provided on the bottom surface of the suction plate.

[0010] Optionally, the plurality of suction holes are arranged in a rectangular shape.

[0011] Optionally, the first motor is fixedly mounted on the outer side wall of the aerobic tank at one end close to the screw, and the output shaft of the first motor end is fixedly connected to the end of the screw passing through the side wall of the aerobic tank.

[0012] Optionally, a first connecting rod arranged parallel to the bottom surface of the second mounting plate is rotatably connected between the two third mounting plates, two sixth mounting plates are vertically fixedly provided on the top surface of the fifth mounting plate, a second connecting rod arranged parallel to the first connecting rod is fixedly provided between the two sixth mounting plates, and the driving assembly includes a cam fixedly provided on the first connecting rod, a roller rotatably connected to the second connecting rod, a second motor, a first bevel gear, a second bevel gear, a third bevel gear, and a fourth bevel gear, the second motor is fixedly provided on the side surface of the cover plate close to the liquid storage barrel and the output shaft is rotatably connected to one end of the first connecting rod, and the third motor is away from the liquid storage barrel. A fixing plate arranged parallel to the bottom of the treatment tank is fixedly provided on the side of the mounting plate above the first connecting rod, and a fixing plate is also fixedly provided on the side of the fourth mounting plate away from the liquid storage barrel above the rotating rod, and a spline shaft is rotatably connected between the two fixing plates, the first bevel gear is fixedly provided on one end of the rotating rod passing through the fourth mounting plate, the second bevel gear is fixedly provided on the bottom end of the spline shaft passing through the fixed plate, and meshes with the first bevel gear, the third bevel gear is fixedly provided on one end of the first connecting rod passing through the third mounting plate, the fourth bevel gear is coaxially slidably connected to the spline shaft, rotates with the spline shaft, and meshes with the third bevel gear.

[0013] Optionally, fixing rods are symmetrically fixed on the two third mounting plates and the fourth mounting plate, and springs are fixed between the fixing rods on the third mounting plate and the fourth mounting plate on the same side.

[0014] It can be seen from the above technical solutions that the embodiments of the present invention have the following advantages: Pour the wastewater into the aerobic pool to mix the wastewater and bacteria evenly and aerate them fully. Start the suction mechanism and adjust the position of the suction plate to suck the foam generated in the aerobic pool into the treatment pool for treatment. At the same time, start the defoaming mechanism so that the drum can be raised and lowered while rotating to evenly spray the defoaming agent into the treatment pool, thereby improving the defoaming efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0016] Figure 1 It is a schematic diagram of the overall structure of this application.

[0017] Figure 2 It is a partial cross-sectional view to show the suction mechanism.

[0018] Figure 3 It is a partial cross-sectional view to show the defoaming mechanism.

[0019] Figure 4 It is a partial cross-sectional view to show the drive assembly.

[0020] Figure 5 It is a schematic diagram to show the partial structure of the liquid storage tank.

[0021] Description of Reference Numerals 1. Aerobic pool; 2. Treatment pool; 3. Cover plate; 4. Suction mechanism; 41. Screw; 42. First motor; 43. Sliding block; 431. Second fixed block; 432. Second rotating shaft; 44. Limit rod; 45. Suction plate; 451. First fixed block; 452. First rotating shaft; 46. Suction pump; 47. Suction pipe; 48. Articulated rod; 5. Defoaming mechanism; 51. First mounting plate; 52. Second mounting plate; 53. Third mounting plate; 531. First connecting rod; 532. Fixed plate Fixed rod; 533, spring; 534, fixed plate; 535, spline shaft; 54, fourth mounting plate; 55, fifth mounting plate; 56, roller; 561, rotating rod; 57, driving assembly; 571, cam; 572, roller; 573, second motor; 574, first bevel gear; 575, second bevel gear; 576, third bevel gear; 577, fourth bevel gear; 58, telescopic rod; 59, sixth mounting plate; 591, second connecting rod; 6, liquid storage barrel; 61, connecting pipe. DETAILED DESCRIPTION

[0022] In order to make the technical scheme of the present invention better understood by the personnel of the technical field, the technical scheme in the embodiment of the present invention is clearly and completely described below. Obviously, the described embodiment is only a part of the embodiment of the present invention, rather than all the embodiments. Based on the embodiment in the present invention, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present invention. Unless otherwise specified, various raw materials, reagents, instruments and equipment used in the present invention can be purchased from the market or can be prepared by existing methods.

[0023] Reference Figure 1 A foam treatment device for coking wastewater includes an aerobic tank 1, a treatment tank 2, a cover plate 3, a suction mechanism 4, and a defoaming mechanism 5. The aerobic tank 1 and the treatment tank 2 are both hollow inside and open at the top, and the cover plate 3 is fixed at the top of the treatment tank 2 near the aerobic tank 1. The suction mechanism 4 connects the aerobic tank 1 and the treatment tank 2, and is used to suck the foam generated in the aerobic tank 1 into the treatment tank 2 for treatment. The defoaming mechanism 5 is arranged on the treatment tank 2, and is used to defoam the foam.

[0024] When in use, the wastewater is poured into the aerobic tank 1, and the wastewater is aerated in the aerobic tank 1. The suction mechanism 4 is started to suck the foam from the aerobic tank 1 into the treatment tank 2. At the same time, the defoaming mechanism 5 is started to defoam the foam, which will not affect the normal aeration treatment of the wastewater. The defoaming treatment can also be carried out in a timely and efficient manner, which helps to improve the defoaming efficiency.

[0025] Reference Figure 1 and Figure 2 The suction mechanism 4 includes a screw 41, a first motor 42, a slider 43, a stopper rod 44, a suction plate 45, a suction pump 46, and a suction pipe 47. The screw 41 is arranged at the top of the aerobic pool 1. The screw 41 is arranged along the length direction of the aerobic pool 1, and one end of the screw 41 away from the treatment pool 2 is rotatably connected to the side wall of the aerobic pool 1, and the other end passes through the side wall of the aerobic pool 1 and is rotatably connected thereto. The first motor 42 is fixedly arranged on the side wall of the aerobic pool 1 at a position close to the screw 41, and the output shaft of the first motor 42 is fixedly connected to the end of the screw 41 passing through the side wall of the aerobic pool 1. The thread directions of the two ends of the screw 41 are opposite, the number of the sliders 43 is two, and the two sliders 43 are respectively threadedly connected to the two ends of the screw 41. The stopper rod 44 is arranged parallel to the screw 41, the stopper rod 44 passes through the two sliders 43 and is slidably connected thereto, and both ends of the stopper rod 44 are fixedly connected to the side wall of the aerobic pool 1. The suction plate 45 is arranged parallel to the bottom surface of the aerobic pool 1 and is arranged below the screw 41. The suction plate 45 is slidably connected to the side wall of the aerobic pool 1. A plurality of suction holes (not shown in the figure) are evenly arranged on the bottom surface of the suction plate 45, and the plurality of suction holes are arranged in a rectangular shape. A first fixed block 451 is fixedly arranged at the center position on the top surface of the suction plate 45. The first fixed block 451 is respectively penetrated by a first rotating shaft 452 at both ends along its length direction. The two first rotating shafts 452 are arranged along the width direction of the first fixed block 451, and the two first rotating shafts 452 are respectively fixedly connected to the first fixed block 451. Second fixed blocks 431 are respectively fixedly arranged on the bottom surfaces of the two sliders 43. Second rotating shafts 432 are respectively penetrated on the two second fixed blocks 431. The two second rotating shafts 432 are respectively arranged along the width direction of the two second fixed blocks 431, and the two second rotating shafts 432 are respectively fixedly connected to the two second fixed blocks 431. A hinge rod 48 is provided between the first rotating shaft 452 and the second rotating shaft 432 located on the same side, and the two ends of the hinge rod 48 are rotatably connected to the first rotating shaft 452 and the second rotating shaft 432 respectively. The suction pump 46 is fixed on the cover plate 3, and the bottom end of the suction pump 46 is connected to the inside of the treatment tank 2. The suction pipe 47 is fixed between the suction plate 45 and the suction pump 46, and is connected to the suction plate 45 and the suction pump 46 respectively, and one end of the suction pipe 47 located in the aerobic tank 1 is a telescopic hose.

[0026] When in use, the first motor 42 is started, and the first motor 42 can drive the screw 41 to rotate. Since the slider 43 and the screw 41 are threadedly connected and the limiting rod 44 has a limiting effect, the slider 43 can only move along the screw 41. Since the threads at both ends of the screw 41 are in opposite directions, the distance between the two sliders 43 can be lengthened or shortened, and then the suction plate 45 can be moved along the height direction of the aerobic pool 1. The position of the suction plate 45 can be adjusted as needed, so that the foam can be better sucked into the treatment pool 2 for treatment.

[0027] Reference Figure 1 and Figure 3 The defoaming mechanism 5 includes a first mounting plate 51, a second mounting plate 52, a third mounting plate 53, a fourth mounting plate 54, a fifth mounting plate 55, a roller 56, and a driving assembly 57. The number of the first mounting plates 51 is two, and the two first mounting plates 51 are symmetrically arranged, and one of the first mounting plates 51 is vertically fixed on the top surface of the cover plate 3 away from the aerobic tank 1, and the other first mounting plate 51 is vertically fixed on the top surface of the treatment tank 2 away from the aerobic tank 1. The second mounting plate 52 is arranged perpendicular to the first mounting plate 51 and is fixedly connected to the top surfaces of the two first mounting plates 51. The number of the third mounting plates 53 is two, and the two third mounting plates 53 are arranged perpendicular to the bottom surface of the second mounting plate 52. The two third mounting plates 53 are arranged along the length direction of the second mounting plate 52, and are respectively fixed on the bottom surface of the second mounting plate 52 at both ends along its width direction. The number of the fourth mounting plates 54 is two, corresponding to the two third mounting plates 53 one by one, and arranged below the third mounting plates 53. A telescopic rod 58 is provided between the corresponding third mounting plate 53 and the fourth mounting plate 54, and the telescopic rod 58 is provided along the height direction of the treatment pool 2. The sleeve of the telescopic rod 58 is fixedly connected to the third mounting plate 53, and the piston rod is fixedly connected to the fourth mounting plate 54. The fifth mounting plate 55 is provided in parallel with the second mounting plate 52, and the two ends of the fifth mounting plate 55 along its length direction are respectively fixedly provided on the two fourth mounting plates 54. Figure 4 and Figure 5 The roller 56 is arranged between the two fourth mounting plates 54 and below the fifth mounting plate 55. The roller 56 is arranged along the width direction of the treatment tank 2 and is hollow inside. A plurality of small holes (not shown in the figure) are evenly opened on the peripheral surface of the roller 56 near the fifth mounting plate 55, and the defoaming agent in the roller 56 flows into the treatment tank 2 from the small holes. A rotating rod 561 is fixed in the middle of the roller 56, and the rear end of the rotating rod 561 is rotatably connected to the fourth mounting plate 54 at the rear end, and the front end of the rotating rod 561 passes through the fourth mounting plate 54 at the front end and is rotatably connected thereto. The driving assembly 57 drives the roller 56 to rise and fall and rotate. A liquid storage barrel 6 is fixed on the top surface of the cover plate 3, and the liquid storage barrel 6 is used to hold the defoaming agent. A connecting pipe 61 is fixed between the liquid storage barrel 6 and the roller 56, and the connecting pipe 61 is a hose and is connected to the inside of the liquid storage barrel 6 and the inside of the roller 56 respectively.

[0028] Reference Figure 3 and Figure 5 , and refer to Figure 5 The driving assembly 57 includes a cam 571, a roller 572, a second motor 573, a first bevel gear 574, a second bevel gear 575, a third bevel gear 576, and a fourth bevel gear 577. A first connecting rod 531 is provided between the two third mounting plates 53 and is arranged parallel to the bottom surface of the second mounting plate 52, and both ends of the first connecting rod 531 respectively pass through the third mounting plate 53 and are rotatably connected thereto. The cam 571 is fixedly arranged on the first connecting rod 531 at the middle position, and the cam 571 is always in contact with the roller 572. The second motor 573 is fixedly arranged on the side of the third mounting plate 53 close to the liquid storage barrel 6, and the output shaft of the second motor 573 is fixedly connected to one end of the first connecting rod 531 passing through the third mounting plate 53. Two sixth mounting plates 59 are vertically fixed at the middle position of the top surface of the fifth mounting plate 55. The two sixth mounting plates 59 are arranged at intervals along the length direction of the fifth mounting plate 55, and a second connecting rod 591 arranged parallel to the first connecting rod 531 is fixed between the two sixth mounting plates 59, and the roller 572 is rotatably connected to the second connecting rod 591. The two third mounting plates 53 and the two fourth mounting plates 54 are symmetrically fixed with fixed rods 532, and springs 533 are fixed between the fixed rods 532 of the third mounting plates 53 and the fourth mounting plates 54 on the same side. A fixed plate 534 is fixed above the first connecting rod 531 on the side of the third mounting plate 53 away from the liquid storage barrel 6, and the fixed plate 534 is arranged parallel to the bottom surface of the treatment tank 2. A fixed plate 534 is also fixed above the rotating rod 561 on the side of the fourth mounting plate 54 away from the liquid storage barrel 6. A spline shaft 535 runs through the two fixed plates 534, and the spline shaft 535 is rotatably connected to the two fixed plates 534. The first bevel gear 574 is fixed to one end of the rotating rod 561 passing through the fourth mounting plate 54, and the second bevel gear 575 is fixed to the bottom end of the spline shaft 535 passing through the fixed plate 534, and the first bevel gear 574 and the second bevel gear 575 are meshed. The third bevel gear 576 is fixed to one end of the first connecting rod 531 passing through the third mounting plate 53, and the fourth bevel gear 577 is coaxially slidably connected to the spline shaft 535, rotates with the spline shaft 535, and meshes with the third bevel gear 576.

[0029] When in use, start the second motor 573, and the second motor 573 can drive the first connecting rod 531 to rotate, and can also drive the third bevel gear 576 and the cam 571 to rotate. Since the third bevel gear 576 and the fourth bevel gear 577 are meshed, the fourth bevel gear 577 is rotated. Since the fourth bevel gear 577 and the spline shaft 535 match, the spline shaft 535 can be driven to rotate, so that the second bevel gear 575 is rotated. Since the second bevel gear 575 and the first bevel gear 574 are meshed, the first bevel gear 574 can be driven to rotate, thereby rotating the rotating rod 561 and rotating the drum 56, so that the defoaming agent in the drum 56 can be evenly sprayed. At the same time, after the cam 571 rotates, the cam 571 and the roller 572 are in contact with each other, so the roller 572 can also rotate. The cam 571 is an eccentric wheel and is in continuous contact with the roller 572, which can also make the telescopic rod 58 extend and retract. Combined with the elastic force of the spring 533, the drum 56 eventually moves up and down along the height direction of the treatment pool 2, and the drum 56 can be raised and lowered while rolling to spray the defoaming agent, which is convenient for better elimination of foam and helps to improve the defoaming efficiency.

[0030] The operating principle of the present application is as follows: pouring wastewater into the aerobic pool 1, mixing the wastewater and the bacteria evenly, fully aerating, starting the suction mechanism 4, adjusting the position of the suction plate 45, so that the foam generated in the aerobic pool 1 can be sucked into the treatment pool 2 for treatment, and at the same time starting the defoaming mechanism 5, so that the drum 56 is raised and lowered while rotating, and the defoaming agent is evenly sprayed into the treatment pool 2, so as to improve the defoaming efficiency.

[0031] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A foam treatment device for coking wastewater, characterized in that: The invention comprises an aerobic pool (1) and a treatment pool (2) each of which is hollow inside, a cover plate (3), a suction mechanism (4), and a defoaming mechanism (5) arranged in the treatment pool (2), wherein the cover plate (3) is fixedly arranged at the top of the treatment pool (2) at a position close to the aerobic pool (1), and the suction mechanism (4) is used to suck the foam in the aerobic pool (1) into the treatment pool (2) for treatment; The defoaming mechanism (5) comprises two first mounting plates (51), a second mounting plate (52) vertically fixed on the top surfaces of the two first mounting plates (51), two third mounting plates (53), two fourth mounting plates (54), a fifth mounting plate (55) arranged parallel to the second mounting plates (52), a roller (56) arranged with a hollow interior, and a driving assembly (57), wherein one of the first mounting plates (51) is vertically fixed on the top surface of the cover plate (3) away from the aerobic tank (1), and the other is vertically fixed on the top surface of the treatment tank (2) away from the aerobic tank (1), the two third mounting plates (53) are vertically fixed on the bottom surface of the second mounting plate (52) and are fixed on both ends of the bottom surface of the second mounting plate (52) along its width direction, and the two fourth mounting plates (54) are arranged parallel to the second mounting plates (52). The plates (54) respectively correspond to the two third mounting plates (53) and are arranged below the third mounting plates (53); a telescopic rod (58) is fixedly arranged between the corresponding third mounting plates (53) and the fourth mounting plates (54); the fifth mounting plate (55) is fixedly arranged on the two fourth mounting plates (54); the roller (56) is arranged along the width direction of the treatment pool (2); a rotating rod (561) is fixedly arranged in the middle of the roller (56); the rear end of the rotating rod (561) is rotatably connected to the fourth mounting plate (54) at the rear end; the front end of the rotating rod (561) passes through the fourth mounting plate (54) at the front end and is rotatably connected thereto; a plurality of small holes are also fixedly arranged on the roller (56); and the driving component (57) drives the roller (56) to rise and fall and rotate.

2. The foam treatment device for coking wastewater according to claim 1, characterized in that: A liquid storage barrel (6) is fixedly arranged on the cover plate (3), and the liquid storage barrel (6) is fixed to the inside of the drum (56) through a connecting pipe (61), and the three are in communication.

3. The foam treatment device for coking wastewater according to claim 1, characterized in that: The suction mechanism (4) comprises a screw (41) arranged along the length direction of the aerobic pool (1) and having two ends with opposite thread directions, a first motor (42), sliders (43) respectively threadedly connected to the two ends of the screw (41), a limit block arranged parallel to the screw (41), a suction plate (45), a suction pump (46), and a suction pipe (47). One end of the screw (41) is rotatably connected to the aerobic pool (1), and the other end passes through the side wall of the aerobic pool (1) and is rotatably connected thereto. The first motor (42) drives the screw (41) to rotate. The limit rod (44) passes through the two sliders (43) and is slidably connected thereto. Both ends of the limit rod (44) are fixedly arranged on the aerobic pool (1). The suction plate (45) is arranged below the screw (41) parallel to the bottom surface of the aerobic pool (1) and is slidably connected to the aerobic pool (1). The top surface of the suction plate (45) is fixedly provided with a first fixing block (45). 1), the first fixed block (451) has first rotating shafts (452) fixedly connected thereto respectively passing through its two ends along the length direction, the bottom surfaces of the two sliding blocks (43) are respectively fixedly provided with second fixed blocks (431), the two second fixed blocks (431) have second rotating shafts (432) fixedly connected thereto respectively passing through them, a hinge rod (48) is provided between the first rotating shaft (452) and the second rotating shaft (432) located on the same side, and the two ends of the hinge rod (48) are respectively rotatably connected to the first rotating shaft (452) and the second rotating shaft (432), the suction pump (46) is fixedly provided on the cover plate (3), and the bottom end thereof is connected to the inside of the treatment tank (2), the suction pipe (47) is fixedly provided between the suction plate (45) and the suction pump (46), and the three are connected, and one end of the suction pipe (47) located in the aerobic tank (1) is a telescopic hose.

4. The foam treatment device for coking wastewater according to claim 3, characterized in that: The bottom surface of the suction plate (45) is provided with a plurality of suction holes.

5. The foam treatment device for coking wastewater according to claim 4, characterized in that: The plurality of suction holes are arranged in a rectangular shape.

6. The foam treatment device for coking wastewater according to claim 3, characterized in that: The first motor (42) is fixedly mounted on the outer wall of the aerobic tank (1) at one end close to the screw (41), and the output shaft at one end of the first motor (42) is fixedly connected to the end of the screw (41) passing through the side wall of the aerobic tank (1).

7. The foam treatment device for coking wastewater according to claim 1, characterized in that: A first connecting rod (531) arranged parallel to the bottom surface of the second mounting plate (52) is rotatably connected between the two third mounting plates (53); two sixth mounting plates (59) are vertically fixed on the top surface of the fifth mounting plate (55); a second connecting rod (591) arranged parallel to the first connecting rod (531) is fixed between the two sixth mounting plates (59); the driving assembly (57) comprises a cam (571) fixed on the first connecting rod (531), a roller (572) rotatably connected to the second connecting rod (591), a second motor (573), a first bevel gear (574), a second bevel gear (575), a third bevel gear (576), and a fourth bevel gear (577); the second motor (573) is fixed on a side surface of the cover plate (3) close to the liquid storage barrel (6), and the output shaft is rotatably connected to one end of the first connecting rod (531); the third mounting plate (53) away from the liquid storage barrel (6) A fixing plate (534) arranged on the bottom surface of the parallel treatment tank (2) is fixedly provided on the side above the first connecting rod (531); a fixing plate (534) is also fixedly provided on the side of the fourth mounting plate (54) away from the liquid storage barrel (6) above the rotating rod (561); a spline shaft (535) is rotatably connected between the two fixing plates (534); the first bevel gear (574) is fixedly provided on one end of the rotating rod (561) passing through the fourth mounting plate (54); The second bevel gear (575) is fixed on the bottom end of the spline shaft (535) passing through the fixed plate (534), and meshes with the first bevel gear (574). The third bevel gear (576) is fixed on one end of the first connecting rod (531) passing through the third mounting plate (53). The fourth bevel gear (577) is coaxially slidably connected to the spline shaft (535), rotates with the spline shaft (535), and meshes with the third bevel gear (576).

8. The foam treatment device for coking wastewater according to claim 1, characterized in that: The two third mounting plates (53) and the fourth mounting plate (54) are symmetrically fixed with fixing rods (532), and springs (533) are fixed between the fixing rods (532) on the third mounting plate (53) and the fourth mounting plate (54) on the same side.

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